US422276A - Type-writing machine - Google Patents

Description

(NovModel.) Y 5 Sheets-Sheet 1. AA. WIRSGHING.. TYPE WRITING MACHINE.

No. 422,276. Patented Feb. 25, 1890.

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f 5 sheets-sheet 2. IWIRSGIIING.

TYPE WRITING MACHINE. No. 422,276 Patented-Feb'. 25, 1890.

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N. PETERS. Pnolo-Lilhngraphnr. washington, mc.

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5 Sheets-Sheet 3. A WIRSCHING l TYPE WRITING MACHINE.

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A. WIRSGHING. TYPE WRITING MACHINE.

1\To.422,72`76.` Patented Feb. 25, 1890.

WITNESSES I INVENTOR BY t 47K@ i l l f ATTORNEYS N. Penas. Phawmognpm. wnhingnm n4 c.

INVBNTOR ATTORNEYS (Nn Model.) 5 Sheets-Sheet 5.

A WIRSGHING TYPE WRITING MACHINE.

Patented Peb.- 25, 1890.

y .-WITNEssEsz` I www@ UNITED STATES PATENT OFFICE.

ALOYS WIRSOHIN G, OF BROOKLYN,

NET YORK, ASSIGNOR OF THREE- FOURTHS TO JAMES F. RANDOLPH, THOMAS M. F. RANDOLPH, LUOY F. RANDOLPH, AND EDGAR F. RANDOLPH, ALL OF MORRISTOVVN, NEW

JERSEY.

TYPE-WRITING MACHINE.

sPEoIFIcATIoN forming pea of Lettere Patent Ne. 422,276, dated February 25,1890.

I Application tiled May Z7, 1884, Serial No. 132,905. (No model.)

To @ZZ whom it Hwy concern.-

Be it known that I, ALoYs WIRscHING, of Brooklyn, county of Kings, and State of New York, have invented certainl new and useful Improvements in Type-Writing Machines, of

which the following is a specification.

This invention has reference to certain improvements in type-writing machines of that class in which the paper is fed backward be- Io low one or more longitudinally-shifting and axially-rotating type-wheels which are operated by a system of keys and intermediate lever mechanisms, so that any letter or figure thereon can be brought-in position above I5 a iixed printing-point, so as to print on the paper by the action of a printing-hammer that is actuated by the keys and intermediate lever mechanism.

The machine consists in its general outzo lines of two rows of keys which impartvby intermediate mechanism axially-rotating motion to a type-wheel shaft, the keys of one row turning the shaft in one direction and the keys of the second row in opposite direc- 2 5 tion from anormal position. The type-wheels are guided on fixed sleeves andan intermediate sleeve on the type-wheel shaft, so that either type-wheel can be shifted on the sleeve of the type-wheel shaft and rotated with the same. The type-wheel shaft is lockedin normal position and arrested when the type- Wheel arrives at the required position for printing. The keys also operate by intermediate lever mechanisms an oscillating hammer 435 that is arranged below a vertically-'sliding printing part or platen, said mechanisms being adapted to release simultaneouslya laterally-traversing paper-carriage, so as to admit it to move forward for the space required between the letters.

The machine consists, further, of certain details of construction, which will be fully described hereinafter, and finally be pointed out in the claims. Y In the accompanying drawings, Figure l represents atop View of my improved type writing machine; Fig. 2, a bottom view of the same; Fig. 2a, a detail .section on line c c,

Figs. l and 2, showing the space-key; Fig. 3,

a vertical transverse section of the machine 5o on line a: as, Fig. l; Fig. 3, a detail side View of a portion of the mechanism for operating the'printinghammer- Fig. 3f is adetail of the spring that actuates the type-wheel shaft. Fig. 4 is a detail view of the oscillating 55 toothed segments by which axially-rotating motion is imparted to the type-wheel shaft. Fig. 5 is a detail vertical longitudinalsection of the type-wheels and the mechanism for shifting the same. Fig. 6 is a rear elevation 6o of the same. Figs. 7, S, 9, and lO are details showing the means by which the traversing paper-carriagev is intermittently actuated. Figs. ll and 12 are a side elevation and a horizontal section on line y y, Fig. ll, of the actuating-keys; and Figs. 13 and 14 are details of the `mechanism by which the typewheel shaft islocked in position when the same has arrived at the proper point ot, its axial rotation. 7o

Similar letters of reference indicate corresponding parts.

In my improved type-writing machine the keys A A are arranged in two lines at the front part of the supporting-frame F. Be- 75 sides the two series of keys there are arranged I two yauxiliary keys A and A2, of which the key A serves to impart the proper spacing between the words, while the key A2 is preferably used toprint that character which is 8o arranged at the central or starting point of the type-wheel, and which is, by preference, a dot or full stop. The frame F is provided at its rear part with two transverse rods g, which serve as guideways, on which S5 the paper-carriage G traverses. The side bars Al, constituting a part of the frame of the carriage, are provided near their rear ends, with inwardly-projecting arms 2, in ,vl'i'ch rollers 3 have their bearings. These rollers 9o move on the rear guideway g and serve to support the rear'of the carriage. yThe front bar K." of the frame of the carriage is provided with. arms q, which serve to support the front of the carriage, these arms being recessed or grooved to receive the front guideway g. q'lhe traversing carriage G is actuated in one direction by the unwinding of a spiral spring Dl1 and its adjusting mechanism, as hereinafter described, and returned in opposite direction by hand, which motion winds up the spiral spring, as customary in typewriting machines.

A rigid arm B rises at a point in the eenterline of the machine and is bent at right angles and extended over the paper-carriage G. It is provided with a detachable extension-arm B', that is* guided in suitable ways of the iixcd arm and secured thereto by a clamp-screw Z). Both the iixed arm B and the detachable arm B are provided with sleeve-shaped bearings for the shaft C of the typewhecls C', which shaft extends in Aforward direction through a perforation of the fixed arm B into a center bearing of a diskshaped standard B2, which is located intermediately between the fixed arm B and the keys A A.

The shanks d d of thekeys A Aare guided in holes ofthe frame F and of an auxiliary guide-plate F', that is rigidly supported on fixed posts below the frame F. Spiral springs .sare interposed between the auxiliar guideplate F and loose washers a, that are pressed Vby the springs against cross-pins a of the key-shanks d, as shown clearly in Fig. l1.

Every key A. of one series aetuates, when depressed to its full extent, a transverse bar F2, that is hung by armsff to fixed posts f at the under side of the frame F. The keys of the second series actuate a second crossbar F2, that is arranged below the shanks of the second series of keys A A. The crossbars F2 `are acted upon by spiral springs f2, which return them instantly as soon as the pressure of the keyis released. The crossbars F2 are not supported parallel to the auxiliary plate F', but arranged at a slight angle of inclination thereto in such a manner that they extend parallel to, but in a diagonally-opposite direction to, each oth er from the ends of the guide-plate F and slope gradually downward, so that their opposite ends are farthest away from the end of the plate F, as shown clearly in Fig. ll. 1fachA crossbar F2 presses, when actuated bya key, upon the rear end of a lever F, that is fulerumed to the under side of the frame F and extended backward, the rear end engaging a laterallyextending heel]ful at the lower end of an oscillating toothed segment f. The second lever Fs engages a second symmetricallyarranged heel f1 of a-second oscillating seg- Y `-"mgmt f, the shank f8 of which turns like the sha-iiljsgof the first segment loosely on a short shaftf', supported in bearings at the under side of the frame F. The heels f4 are connected by a spiral springf, by which the segments are returned in to their normal positions after they have been lifted by one of the fulcrumed transmitting-levers F5. The shanks fs of the toothed segments ff pass through a transverse slot f7 in upward direetion, the segments fg engaging mutilated pinions fw, that are arranged on the typewheel shaft C, as shown in Fig. 4. The mutilated pinions flo are arranged sidewise of each other on the shaft C, so as to be engaged, respectively, by the toothed segments f9 when they are oseillated, but clear the same when they are returned into their normal position, as shown in Figs. 3 and 4. The segments f are moved by the connectingspring f of their heels in opposite directions until their shanks abut against fixed stops f at the top of the supporting-frame F, as in Fig. 4. By the intel-meshing of the segments fi with the pinions fw the type-wheel shaft C is turned on its axis in one or the opposite direction. In the normal position of the segments f the type-wheel shaft C and the type-wheel upon the same are also at their normal position, so that the startingpoint of the type-wheel C (represented by a full stop) is then located vertically above the platen. From this point the type-wheel is rotated in one or the opposite direction, it being provided at its circumference with as many letters as there are letters in the alphabet. The distance of said letters on the circumference Iof the type-wheel from the normal or starting point or full stop is arranged to correspond with the variable depression of the inclined cross-bars, caused bythe uniform dip of the keys and the correspondinggreater or smaller oscillations of the intermediate toothed segments f i. When either one of the toothed segments j"9 is returned into its normal position` (shown in Fig. 4,) it is entirely out of mesh with its mutilated pinion f1". The type-wheel shaft C on arriving at its normal position is locked, so as to prevent vibratory motion by radial. arms f1, that are applied by collars and set-screws f12 to the typewheel shaft C, the bent outer ends of said arms resting then on the upper side of projections or lugs j of the segments f".

To impart an endwise returirmotion to the type-wheel shaft C in each direction, a spiral springs is loosely placed around the same, the ends s2 of which are bent up, so as to abut at opposite sides of the fixed arm B. 'lhe spiral spring s is confined between fixed collars f 15, and its ends engaged by pins fl, as shown in Figs. 3 and 3, one pin imparting on the turning of the shaft by one of the segments a tension to the spring s in one direction, the other pin a tension in the opposite direction, so that whatever the direction of motion of the type-wheel shaft C imparted by the segments f, the spiral spring s receives a suiiicient amount of tension to cause the return of the type-wheel shaft and complete its motion until the full stop of the same is obtained by the abutting of the arms f1 against the stops of the segments f. Each segment f is returned into normal position against its stops f by the spiral spring f This spring also has a tendency to cause the return motion of the typewheel shaft C) byimeans of one of the segments f" and one of the mutilated pinions IOO IIO

flo. The return motion of the shaft C is facilitated and accelerated by the action of the spiral spring s on the shaft C. This spring also serves to complete the motion of the shaft C and bring it to its normal position after the actuating-segment f is out of mesh with its pinion flo. As soon as the teeth of the segment ff have left the teeth of the pinion flo, the spring s alone acts on the typewheel shaft and continues the endwise motion of the same, so that one of the radial arms f13 passes the stop f14 of its segment, and then abuts on the top of said stop, while the other arm f 13 simultaneously abuts against the stop j"14 of the other segment', as shownin Fig. 4, so that the shaft C is locked into normal position.

Whenever the type-wheel shaft C and its type-wheel C have been turned on their axis by the depression of a key to such an extent that the type corresponding to the key is brought vertically above the platen, the typewheel shaft has to be locked rigidly in this position, so as to hold the type rmly in position for printing. The locking mechanism used for this purpose is worked by the keys A, the shanks of which are provided with side tongues CZK, that are beveled at their lower ends. The tongues (ZX are guided in corresponding recesses of the frame F, and ser-ve at the same time to prevent the keys from turning on their axes.

VAt the under side of the frame F are arranged a series ofbell-crank levers cZ, which are engaged at their opposite ends by the tongues ZX of the key-Shanks, and which are fulcrumed to the frame F at points midway between the two rows of shanks. The tongues ZX of one line of keys A are arranged at one side of the Shanks, and the tongues @ZX of the second line of keys at the opposite side of the Shanks, as shown in Figs. 11 and 12, so as to engage the ends of the fulcrumed levers, (Z at opposite sides and impart thereby on the depression of any key a lateral motion to its lever CZ. The fulcrumed bell-crank levers CZ are provided at their center with laterallyprojecting arms d2, whichl are connected by pivot-rods or wires @Zi-with the lower-ends of radially-arranged locking-levers CZJ, that are fulcrumed to a common pivot-pin CZ5 at the base of the disk-shaped standard B2. The levers CZ4 move in recesses of the base of the standard B2, as shown clearly in Figs. 13 and 14 and are extended through an opening of the frame-F toward a raised circular flange Z7 on the face of the disk-shaped standard B2, said Hange being provided with radial recesses, in which the correspondingly bent upper ends of the levers CZ4v are guided. At the moment-when a key A Ais depressed the beveled lower end of the tongue (ZX of its shank movesv the fulcrumed lever CZ sidewise, whereby, by the connecting wireror rod (Z3, the locking-lever CZ is moved forward, as shown in dotted lines in Figrlli. In this position it projects beyond the face of the raised circular flange cZ7, so as to be in the path of two radial arms cZB, that are secured to the type-wheel shaft and extended in opposite directions, the same as shown in Figs. 13 and 14. One arm CZS is stopped by the projecting end of the fulcrumed lever Zt when the type-wheel shaft is rotated in one direction on its axis, while the other arm is stopped by the same end when the type-wheel shaft is rotated in opposite directions. As one of the series of keys moves the type-wheel shaft in one direction and the other series of keys in the opposite direction, and as the intermediate levers CZ are operated by the shanks of both series of keys, only one set of locking-levers d4 is required for both series of keys, and thereby a reliable stop is made for the type- Wheel shaft when the required type arrives above the printing-point. The depression of a key of either series will turn the typewheel for the distance required by the type to be printedby means ofthe intermediate lever mechanism, and simultaneously bring one of the radial stop-arms CZ8 in contact with the projecting locking-lever (Z4, that corresponds to that type and key. The same operation takes place when the adjoining key of the other series is depressed. In one ease the radial stop-arm CZ8 forms contact with one side of the locking-lever d4, while in the other Vcase the other stop-arm @Z8 forms contact with the other side of the same lockinglever CZ.

From the foregoing it appears that the keys of one row turn the type-wheel shaft and its type-wheel in one direction from a normal point, while the keys of the second row turn the type-wheel and its shaft in opposite direction from a normal point. The depression of the key also actuates the locking mechanism by which the typewheel shaft Vis locked when the required type is above the printing-point, while on the release of the key the type-wheel shaft is returned to its normal position and locked in this position.

Then the type corresponding to the key that has been depressed is above Vthe printing-point, the printing takes place by the action of the platen and printing-hammer, as will be described hereinafter.

To provide not only lower-case letters, but also capitals, punctuation marks, dro., the typewheel shaft is preferably arranged with three type-wheels. The hubs of the typewheels C are accurately fitted to three guidesleevese e. e?, which are arranged in line with each other. The outer sleeves e c are respectively secured to the end of the main arm B and to the end of the auxiliary detachable arm B', while the intermediate shorter sleeve e2 is keyed near the end of the typewheel shaft C, so asv to turn with the same in one or the opposite direction, as the case may be. The shaft C passes through the sleeve e and extends partly in the sleeve e. The sleeves e e e2 are provided with longitudinal tongues or splines c3 in line with each other,

IOO

IIO

along which the grooved hubs of the type- Wheels C are moved by means of a U-shaped shifting bail or yoke C2, that is guided like the hubs of the type-wheels C by grooved end sleeves on the tongues or splines e3 and sleeves e e e2. The shifting-bail C2 is connected by a pivot-rod et with a lever C3, that is pivoted at its lower end to the side of the main arm B and acted upon at opposite sides by band-springs e5, which are of sufficient strength to return the lever C3, shifting-bail C2, and the type-wheels C into their normal position with the central type-Wheel on the sleeve e2 of the type-wheel shaft and the ou'ter type wheels, respectively, on the sleeves c e. In the central position of the shifting-lever C3 the central type-Wheel C is i tantly from the typeavheels, one at each side of the same, and are preferably made of the lsame construction as the inking-wheels in vertically above the platen; but when the lever is moved by the left hand in backward direction the type-wheels C are moved backward on the sleeves c c e2, so that thereby the innermost typeavheel C is placed upon thel sleeve c2 of the type-wheel shaft, while the central and outermost type-wheels are both placed on the sleeve e. The innermost typewheel is thereby in such a position that it can berotated with thek type-wheel shaft. As long as the shifting-lever C3 is 'held in position the innermost type-wheel turns with the shafts. Vhen, therefore, the central type-Wheel is arranged for lowercase letters and the innermost type-Wheel for capital letters, the depression of any key will print the capital letter corresponding to said key, as the innermost type-Wheel has been shifted into a position vertically above the platen.

By moving the shifting-lever CB in a forward direction the type-wheels are shifted forward, and thereby the outermost type-\vheel placed on the sleeve of the type-wheel shaft, so -that on turning the latter by the depression of any key the outer type-wheel turns with the same and prints the characters arranged on the outer type-Whee1, such as iigures, punctuationmarks, the. The moment the shifting-lever Cg is released it is returned by one of the springs e5 into its central position. The type-wheels are simultaneously shifted back into their normal position, with the central type-Wheel above the platen. In the central position of the lever C3 the springs e5 rest against stop-pins e of the main arm B. lVhen the lever C is shifted from a central position,.one of the stops eG prevents one spring e5 from following the motion of the shifting lever, while the other spring is actuated by the motion of the lever C3 in one or the opposite direction.

To hold the type-wheels in proper position on the sleeve of the type-wheel shaft C, a spring actuated locking pin e7 projects through a hole of the auxiliary arm B and takes into one of three notches e8 of the shiftingbail C2. Vhen the locking-pin cT engages the middle notch e8 of the bail, the middle type-wheel is in position on the sleeve e2 of the type-wheel shaft, while when the lockingshaft C.

` frame F.

pin c7 is in engagement with theouter notches e8 one of the outer type-Wheels is placed in position on the sleeve e2 on the type-wheel The raising and lowering of the spring of the locking-pin c7 also actuates, by means of a transverse piece e", the arms 210 of the inking-wheels Ct, which are pivoted to a su `ort e on the extension-arm B. The

y hiking-wheels C4t are thereby lifted, so as-to clear the type-Wheels while they are shifted in one or the opposite direction. The moment the pin e7 drops into one of the notches e8 of the bail C2 the inking-wheels C are lowered at the same time, so as to form con-tact with lthe circumference of that type-Wheel which is then above the platen.

The inking-Wheels C4 are arranged equidisprinting-telegraph instruments.

Then the auxiliary arm E is detached from the main arm B by loosening its clampscrew D, the fixed sleeve c of the same clears t simultaneously the type-wheel shaft C. An

open space is thereby formed between the end of the type-wheel shaft C and the outer end of the shifting-bail C, so that by shifting the type-Wheels forward one after the other can be reznoved for cleaning or for being replaced by a new set of type-Wheels having different characters or types. To assist this exchange of type-Wheels, the bail C2 is shifted forward by the shifting-lever G3, which is placed in the same position when replacing the type- Wheels in reverse order on the shaft C.

The printing-hannner D is actuated by the depression of each key A, and also by the key A2, whenever a full stop is required to be produced. The mechanism for operating the printin g-hammer D consists of transverse-bars D', that are arranged sidewise of the shanks of the keys A, and directlybelow the Washers a of the same. The bars D' are connected by fixed crank-arms D2 to transverse shafts D, that turn in bearings at the under side of the A11 arm secured to the shank of the key A2 also engages one of the transverse bars D. The keys A depress the bars D by their Washers whenever they are depressed, While the key A2 depresses the bar D by the connecting-arm just mentioned. The shafts D3 are connected by rigid crank-arms D'1 and conneetingrods D5, respectively, with the upper and lower ends of a lever D6, that is fulcrumed to a 'fixed downwardly-extending arm D7 at the under side of the frame F. The rear ends of the connecting-rods D5 are slotted, so as to provide for the oscillating motion of the fulcrumed lever D, as one of the rods D5 is at rest when the other is operated. The crank-arms D4 of both shafts D3 are connected bya spiral spring hx, whereby the bars D are held in contact with the washers of the keyshanks until one of the keys is depressed. The lever D6 is also acted upon bya strong spring h', connected to the frame ICO IIO

F, so as to be returned into normal position when the pressure on the key is released.

To the lower end of the fixed arm D7 is pivoted the` buttlend D8 of the shank of the printing-hammer D. The shank is connected by a spring-plate D9 to the butt-end D0. The pivoted butt-end D8 of the printing-hammer is drawn in upward 'direction by a spring 71,2, andis provided with a laterally-projecting pin hs, that is engaged by a spring-actuated dog 71,1, pivoted to the fulcrumed lever D0. The dog 71,4 is pressed by its spring against a xed stop-pin h5, which stop-pin keeps the dog in engagement with the pin 713 of the buttend D0, so as to actuate the printing-hammer D when the fulcrumed lever D is oscillated. As soon as the lever D0 is depressed far enough so that the dog 711clears the pin 710 of the butt DS of the printing-hammer D, as shown in Fig. 3, the pressure on the buttend is released and the hammer thrown suddenly with considerable force against the platen E, as shown in Fig. 3. The springplate, by which the butt-end DS is connected with the shank of the printing-hammer, imparts a quick motion to the hammer D and a sudden blow to the platen E, while the hammer is just as quickly returned after the blow is given. The platen E drops instantly by its own weight the moment after the blow has been given, so as not to interfere .With the typewheels or the paper on the paper-carriage G. The butt-end of the printing-hammer D is stopped in its upward motion by an adjustable stop-screw 710 on the fixed arm D7, as shown in Figs.v 3n and 9, the sudden stop imparting in connection with the spring-plate an accelerated speed to the printing-hammer and the sudden recoil of the same. The moment the printing-hammer has imparted its blow and the pressure on the key is relaxed the fulcrumed lever D0 returns into its normal position by the action of its spring 7L', which brings the dog h1 back intol position above the pin 71,3 of the butt-end D0. The same lever mechanism by which the motion is imparted to the printing-hammer D also imparts an intermittent step-by-step motion to the traversing paper-carriage G. For this purpose the fulcrumed lever D0 engages by a lateral arm.A 71,7 at its lower end an escapement-lever DO, that is pivoted to a lug at the under side of the frame and retained in contact with the arm 71,7 by a spring 710. The lever D is oscillated by the fulcrumed lever D0, so that one or the other of its beveled pallets 7t0 engages with the alternating teeth of an escapement-wheel D10, the shaft D11 of DO, which latter follows the arm 7t7 by the action of its spring 718 until stopped by the iixed pin 7110 of the supporting-arm D7. One of the pallets 710 is-thereby released from the teeth of the escapement-wheel D10, but the other thrown into engagement with the next tooth. By the return motion of the fulcrumed lever D0 the pivoted lever DO is taken along by the lateral arm 71,1, and thereby the last pallet thrown out of andthe first pallet thrown into engagement with the neXt tooth of the escapement-wheelD10, which is thereby intermittently stopped by the pallets h1. A gear-wheel D12 on the shaft D11 of the escapement-wheel D10 has an intermittent rotary motion corresponding to the intermittent movement of the shaft. This gear-wheel D12 meshes with a rack D13 of the paper-carriage G, and imparts thereby a step-by-step motion to the same,'whereby the proper space between the letters is obtained. The shank of the spacing-key A is provided with a 'fixed arm 7111, which extends backward and bears on one of the transverse rods D', so as to aotuate the lever mechanism by which the escapementwheel D10 is operated when the key A is depressed. Vhen the key A is depressed, the arm 7111 abuts against a stop 7t12, (shown in Figs. 2 and 21,) which prevent it from making as full a dip as the other keys, but lowers the bar D sufficiently to cause the working of the pallets of the escapement-wheel, and thereby the intermittent forward motion of the papercarriage. The partial dip of the key A is, however, not suflicient to release the printing-hammer D from the dog h4 for a fullblow, so that the platen E is not raised whenever the spacing-key A is operated for producing the required space between the words.

A strong spiral spring D11 is attached at IOO one end to theshaft D11 and at the other end to a bracket- arm 71,13 of a xed arm D15, as shown in Fig. 10, so that by moving the traversing carriage G laterally by hand on its guideways the spring D11 is rewound by the action of the. rack D13 and gear-wheel D12. A spring-pawl 7t11 is pivoted to the escapementwheel D10, and engages a ratchet-wheel 7115,

that is keyed to the shaft D11. vAs the escapement-wheel D10 is placed loosely on the shaft D11, the ratchet-wheel 71,15 clears the pawl 7111 when the spring D11 is wound up while it is in engagement with the pawl 71,11, so as to mit the turning of the escapement-wheel D10 and the laterally-traversing motion by the action of its spring D11, as customary in typewriting machines. l

The shank of the platen E is guided vertically above thc hammer D in a fixed sleeve E secured to one of the ways g of the papercarriage G, as' shown in Fig. 3. It is raised by the blow of the hammer D, so as to lift the paper and press it against the type which is at that time vertically above the platen E. The moment the printing-hammer is released the platen is dropped, so as not to interfere IIO with the backward motion of the paper on the carriage G.

The iiiterposition of the movable platen E between the hammer D and the paper forms one oi' the essential features of this invention.

The paper is supported on the traversing paper-carriage G, which is constructed of a slieet-nietal shell G of tubular shape, that is provided with a transverse opening i, through which the paper is introduced to the interior of the shell. An interior apron G2 guides the paper at the inside of the shell and coils it, as shown in dotted lines in Fig. 3. The paper passes between an interior roller fi and small exterior contact-rollers ythen through the opening 'i to the outside of the shell, next between a plate G3, attached to the top of the shell G', and a spring-pressed top plate Gl in backward direction past the platen E, and then through between the feed-rollers I I. 'lhesc feed-rollers are operated by means of a crank I-` and a pawl-and-ratchet device I, applied to the shaft of one of the feed-roliers I I', the crank moving the paper backward for producing the spacing between the lilies. Then the paper is to be placed in position in the shell G, it is inserted into the opening i, so as to bc placed between the con` tact-rollers `1 Il?. By turning said contact-rollers with a hand-crank di, applied to the shaft of one of said rollers, the sheet of paper is quickly drawn into the tubular shell G', after which the outer edge of the saine is passed through between the fixed plate G3 and the spring-plate Gl and the feed-rollers I I', the paper being then in a position for printing.

Then the traversing paper-carriage G is moved back after finishing a line for the purpose of winding up its actuating-spring and bringing it into position to take a new line, its movement is arrested when it reaches its normal position by contact of an arm K on the carriage with a stop K2 on the frame F. The arm K is adjustable on the i'od K at the front of the carriage by means of a setscrew K3, and the screw-stop K2 may be adjusted at different points on the frame, holes K4 being located along the margin of the frame F for this purpose.

The general operation of the machine is the same as in type-writing machines heretofore in use.

The paper-carriage is released and moved laterally step by step at each depression of one of the keys, so as to produce the spacing between the letters and between the words. IVhen the printing of a line is completed and the paper-carriage returned to its normal position, the paper is moved backward for line spacing by the feed-rollcrs I I', between which the paper runs at the rear of the machine. The roller I is journaled in the side bars l of the frame of the carriage, and the rollers I aresupported on a transverse rod 6, which is parallel with the roller I. The rollers I are provided with spur-wheels 7, which engage tlie paper and press it into contact with the roller I. The rod G is supported at its opposite ends by spring-arms 8, which are attaehedto studs 5) at the sides of the carriage. rlhe shaft of the roller I is provided at one end with a ratchet-wheel l0 and with a crank I2, which latter turns loosely on said shaft. The arm of the crank I2 is provided with a pawl ll, which engages the ratchet-Wlieel l0, for turning the main feed-roller I. A stop l2 projects from the carriage and serves to arrest the movement of the crank at the proper point for the spacing of a line. The feedrollers are actuated for the spacing of a line by turning the crank into contact with the stop l2. By the action of the keys and typewheels line after line is printed in clear legible characters. The type-wheels are rigidly locked after each type is brought into proper position above the printing part, so that the paper receives the imprint ot' the type when lifted by the platen, owing to the quick blow of the printinghammer. A large number of characters may be printed with a comparatively small number of keys, whereby the construction of the machine is simplified and elieapened and a light, portable, and compact machine obtained. As the printed letters are always within sight, it can be readily controlled without removing or lifting any part of the mechanism.

I do not claim in a type-writing machine the specific combination of gear-arms,a typewheel shaft, a pinion carried by said shaft, said arinsbeing brought independentlyin gear with said pinion to rotate said type-wheel in either direction from a xed point and subsequently to return said type-wheel to its initial point,substantially as described in an application of Byron Alrooks, Serial N 229,758, filed March 5, 1887.

I do not claim the speeiiic combination in a writinganachine of the letter-wheel, the shaft carrying the fixed wheels, the letterkeys and levers, and the key-board, all substantially as set forth in an application of IOO IOS

IIO

John lI. Forrest, Seria-l No. 217,746, filed November l, 1886.

I do not claim in a type-writing machine the specific combination of a pinion on the shaft of the type-wheel and a plurality of gear-arms which arey out of gear with said pinion when at rest, combined with a device for holding the type-wheel in its initial position substantially as described in said application of Brooks.

I do not claim the specific combination, in a type-writing machine, of the fixed wheel, the rateliet,t11e transverse bar,thc levers, and the type-wheel geared to the shaft substantially as shown in said application of Forrest.

Having thus described my invention, l claim as new and desire to secure by lletters Patentl. The combination of two rows of keys, two independent lever nieelianisnis,each aetuated, respectively, by the keys of one row, a

type-wheel shaft, a type-wheel supported on said shaft, toothed segments operated by said lever mechanisms, and mutilated pinions on the type-wheel shaft, whereby the type-wheel shaft is rotated in either direction from anormal position, substantially as described.

2. The combination of two rows of actuating-keys, two sets of transmitting-lever mechanisms, each operated by the keys of one row, a type-wheel shaft, a type-wheelsupported on said shaft, toothed segments oscillated by said lever mechanisms, mutilated pinions on the type-wheel shaft, and radial stop-arms secured to said shaft, said arms engaging stops on the segments so as to lock the type-wheel shaft in a normal position, substantially as described.

3. The combination of two rows of actuating-keys, an inclined transverse bar below each row of keys, a fulcruined lever operated by each transverse bar, laterally-oscillating and toothed segments operated by said levers, a type-wlieel shaft having mutilated piiiions meshing with said segments, and a type-wlieel supported on said shaft, substantially as described.

4. The combination of two rows of keys, intermediate f ulcrumed bell-crank levers actuated by the keys of both rows, fulcrumed stop-levers connected to said bell-crank levers, and a type-wheel shaft havingstop-arms that form contact with one of the stop-levers, so as to arrest the type-wheel shaft'when rotated in either direction from a normal position, substantially as described.

5. The combination of two rows of actuating-keys having tongued shanks, fulcrumed bell-crank levers actuated by the keys of both rows, a series of fulcrumed stop-levers connected to said bell-cranks, a standard having a slotted circular iiange, a type-wheel shaft having stop-arms that form contact with one of the stop-levers, so as to arrest the typewlieel shaft when rotated in either direction from a normal position, substantially as set forth.

6. The combination of a type-wheel shaft, means, substantially as described, for rotating the same in either direction, a spiral returnspring placed loosely on the shaft between fixed collars, the ends of said spring abutting at opposite sides of the shaft-supporting arm,

and pins affixed to said collars and adapted to engage the ends of said spring, so that tension is imparted thereto when the shaft is turned in either -direction, substantially as set forth.

`7. The combination of a fixed supportingarm, a detachable extension-arm, each havin'g a fixed guide-sleeve, a type-wheel shaft having a iixed intermediate guide-sleeve, typewheels adapted to slide longitudinally on said sleeves, and means, substantially as described, whereby the type-wheels are shifted in either direction, so as to place either one of said type-Wheels on the type-wheel shaft, substantially as set forth.

8. The combination of a fixed supportingarm, a detachable extension-arm, each having a fixed guide-sleeve, a type-wheel shaft having an intermediate guide-sleeve, type-wheels adapted to slide longitudinally on said sleeves, means, substantially as described, whereby the type-wheels are shifted longitudinally in either direction, and means, substantially as described, whereby either one of said typewheels is locked in position on the type-wheel shaft, substantially as specified.

9. The combination of a iiXed supportingarm, a detachable extension-arm, fixed guidesleeves secured to said arms, a type-wlieel shaft having an intermediate guide-sleeve, type-wheels guided longitudinally on said sleeves, a shifting-bail, also guided on said guide-sleeves, and a spring-pressed hand-lever connected to said shifting-bail, whereby the type-wheels are moved in either direction by the hand-lever, substantially as set forth.

r 10. The combination of a fixed supportingarm, a detachable extension-arm, xed sleeves attached to said arms, a type-wheel shaft having an intermediate guide-sleeve, typewheels guided longitudinally on said sleeves, a shifting-bail, a hand-lever connected to said bail, and a locking spring-catch engaging recesses of the bail, substantially as described.

ll. The combination of atype-wheel shaft, type-wheels adapted to be longitudinally shifted thereon, pivoted arins carrying inking-wlieels, and means, substantially as described, for locking either one of said typewheels to its shaft, said locking means being adapted to raise or lower the inking-wheels and their supporting-arms so that they are clear of or in contact with the type-wheels, substantially as described.

l2, The combination of two rows of springseated keys, two independent sets of lever mechanisms, substantially as described, operated by each row of keys, an oscillating hammer operated by both rows of keys, and a platen actuated by said hammer, substantially as described.

13. The combination of two rows of springseated keys, two sets of intermediate lever mechanisms, substantially as described, actuated, respectively, by said rows of keys, a printing-hammer having a spring butt-end oscillated by either lever mechanism, and means, substantially as described, whereby the buttend of the printing hammer is stopped, substantially as and for the purpose set forth.

l-i. The combination of two rows of keys, intermediate lever mechanisms, substantially as described, an escapement-lever actuated by either lever mechanism, an escapementwheel released intermittently by said escapenient-lever, and a spring-actuated traversing paper-carriage to which a lateral step-by-step motion is imparted at each oscillation of the escapement-lever, substantially as described.

15. The combination of a series of actuating-keys, intermediate lever mechanisms, substantially as described, an escapement-lever I oo IIC) operated by said lever mechanisms, an escapement-wheel released intermittently by said escapement-lcver, a spring-actuated escapement-shaft connected by a pawl and ratchet with the escapement-wheel, and a traversing paper-carriage actuated by a rack and gearwheel from said shaft, substantially as described.

1G. The combination of a rock-shaft, typeseginents arranged side by side and capable of longitudinal movement on said shaft, and a locking device, substantially as described, whereby one of the segments is locked on said shaft t0 turn therewith, while the other segments are free, substantially as set forth.

17. The combination of type-segments provided with grcoves in their hubs, arock-shaft on which the segments are loosely mounted, a projection formed on the shaft, and a shifting-bar whereby the segments are moved on t-he rock-shaft to engage with said projection, substantially as set forth.

1S. In a type-writing machine, the combination oi' two or more type-wheels shiftable on a driving-shaft, a shifter for shifting said wheels, a spline or clutch for engaging one of said wheels at atime with the shaftat a given point, and a second spline or clutch-for holding the other Wheel or wheels from turning with said shaft.

In testimony that I claim the foregoing as my own l have signed my name in presence of two witnesses.

ALOYS WIRSCHING.

Witnesses:

Louis C. RAEGNER, SIDNEY MANN.

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