US1294792A - Device for securing parts to their supports. - Google Patents

Description

B. GRAY.

DEVICE FOR SECURTNG PARTS T0 THEIR SUPPORTS. APPLTCATTQN FILED F53. 25T 1915.

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2 SHEETS-SHEEI l.

E. D. GRAY,

QR SECURWJG PA APPLCATION FLED FEB. 2

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2 SHEETS-SHEE Z.

emmene rnrnnr ermee,

BUDD D. GRAY, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE HESS-BRIGHT MANUFACTURING COMPANY, A CORPORATION OF DELAWARE.

DEVICE FOR SECURING PARTS TO THEIR SUPPORTS.

Specification of Letters Patent.

Patented Feb. l, fllig.,

Applicatnn filed February 25, 1915. Serial No. 10,510.

To all who/n, t may Concern s lle it known that I, BUDD D. GRAY, 2 citizen of the llnited States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Devices for Securing` Parts to Their Supports, of which the following' is a specification, reference being had therein to the accompanying drawing.

rThis invention relates to means for securing parts in fixed position on their supports, and has special reference to the mounting of antifriction bearings, the construction of the present invention being adapted particularly for the firm and rigid clamping of the inner easing-member of the bearing against a shoulder or abutment on a shaft or other support.

The chief aim of the invention is to avoid the use of screw threads on or in connection with the clamping devices or parts thereof, and to bind the casing-member tixedly against the abutment. with great force, and without liability of its working loose 'orbecoming displaced; and with these and other objects in view, my invention consists'in'y'a clamping' device comprising a. plurality of wedge-shaped members, adapted to be applied to a shaft or other support between abutments thereon, and being movable transversely of the support, the form and relative arrangement of the members being` such that by their transverse movements, they will operate to apply a clamping pressureto the part to be clamped, in a direction longitudinally of the support, and will bind the same fixedly and firmly in position against the abutment.

ln the more specific embodiment of my invention, the support for the casing-member of the bearing'is in the form of a shaft or axle, which is reduced at one end in crosssection so as to form inner and outer abutnients or shoulders, the casing-member of the bearing surrounding' the reduced portion of the shaft and being' seated against the inner abutment. T he clamping' device is in the form of two sets of coperating wedgeshaped members, one set comprising` two sections disposed respectively on opposite sides of the shaft and extending transversely thereof end to end,I and movable relatively to each other in opposite direc-tions transversely of the shaft, and the other set comprising two sections also disposed on opposite sides of the shaft alongside of and in engagement with the movable sections, the arrangement being' such that by the movement lof the movable sections in opposite direc-tions, one set of the members will cooperate with one of the abutments, and the other set will cooperatey with the casing-member of the bearing, and will, by such coperation, apply a clamping pressure to the casing-member in a direction toward the adjacent abutment; whereby the casing-member will be held firmly and iXedly in posi; tion.

In the accompanying drawings, l have represented several forms of embodiment of my invention, including the construction above outlined. lt will be manifest, however, that the details of the several forms may -be modified and changed by the skilled mechanic without departing from the limits of the invention; and it will be understood that the invention is not limited to any particular form or construction of the parts except in so far as such limitations are specified in the claims.

In the accompanying drawings:

Fig-ure l is an elevation of one end of a shaft, showing` in longitudinal section, my improved clampingy device, 4and the inner casing-member of an antifriction bearing clamped in position thereto.

Fig. 2 is an end elevation of the parts shown in Fig'. l.

Fig. 3 is a top plan view of the same.

Fig. 4: is a sectional elevation of a modifilation of the invent-ion.

Fig'. 5 is a similar view of another modification.

Fig'. G is a top plan view of the same.

Referring` to the drawings:

Referring particularly to Figs. l to 4 inclusive, the support for the part to be clamped is in the form of a shaft or axle, the end of which is necked-down or reduced, thereby forming' an inner annular shoulder or abutment Q, and an outer annular shoulder or abutment 3, the latter being on the end of the shaft. An inner casing-member e of an anti-friction bearing is applied t0 the reduced portion of the shaft adjacent the abutment 2 and is seated at its inner end against the latter. Between the outer end of the casing-member l and the outer abutment 3, is applied a clamping device 5, which comprise.1 cooperating inner and outer wedge-shaped members, arranged tace to tace with their abutting inclined surfaces reversed, one ol' said members being movable relativelj,7 to the other transversely ot the shat't, with the result that by the -cooperation ot said members respectivelyY with the outer abutment 3 and the casing-member el, the latter will be irml)v and forcibly' clamped in lined position, against the inner abutment on the shaft.

The wedge-shaped members are shown as being constructed each ot two halt-sections, the halt-sections 5 ot the inner member beingr formed in their inner ends with semicir/cular recesses 6 surrounding the reduced portion of the sha-tt, and the saind sections beine' disposed on opposite sides or the shart end to end. The inner side :ta/ces 5a ot these halt-sections extend in a plane transverseljv,7 ot' the axis ot the shai't so as to bear :tla'tljlf against the outer end ot' the casing member -lf Their opposite faces 5b incline or slope outwardlv and in opposite directions from the center ot the shaft to the outer ends of the sections. thereb)v producing' in eiiect a double wedge, which is oit greatest thickness at the center of the shaft, and which decreases in thickness outwardly.

The outer wedge-.shaped member olf' the clampingA device is likewise formed or' two sections 'i which are applied to opposite sides oi the shat't end to end` alongside of the sections ot the inner member, the adiarent taces T ot these sections being inclined reverselv to the 'faces ot the tirst mentioned sections. and beinfg` in engagement therewith. while the outer surfaces T ot' the sections extend in a plane transverselvY ot the shatt so as to engage flatly against. the inner side ot the outer abutment 3. rlhe inner ends ot' the sections 7 are recessed as at TC so as to surround the reduced portion of the shaft, and these recesses are of such form, that clearance is provided between the sections and the shaft to enable the sections to be moved in opposite directions toward each other in order to eti'ect the clamping action.

rThe movement ot the sections is eti'ected b v means ot two through-bolts H which extend on opposite sides olf the shaft and through alined openings in the sections. these bolts effecting the connection oiu the sections. and being operable, b v the tightening ot' the nuts thereon to draw the sections inwardly toward each other. rthis action will, by reason the cooperation ot the inclined side surfaces on the sections T, with the engaging inclined surfaces on the other sections 5, a clamping pressure l the cash nien'iber odin-ally of and will torce the casing-member into hrm engagement with the inner abutment 2, and will hold the same iixedly in position.

rlli-is construction of the clamping device is advantageous, in that it is free from screw threads, which in practice are liable to strip; .and further it is possible to appl)v to the casing-member a clamping pressure of extreme torce, since the. slope of the incline or taper ot the cooperating side surfaces ot' the members may be on a small angle. As a result7 the casing-member will be held with extreme firmness to its seat, and there will be no liabilitg.7 of the jar or vibration of the parts, producing looseness or displacement ot the celsing-member.`

ln Fig. -l the construction above described is the same except that the position or" the clamping device is reversed, the member -which is made up ot the opposing movable sections being applied next the casing-member el, and the other men'iber being applied next the outer abutment 3. rl`he clamping operation is in both cases the same, and the operation is attended with the same advantages. v

Scie. a further modilication is repreln sented. Here it will be seen that two wedgeshaped members corresponding` to the inner member of Fig. l are employed, one of which abuts against the casing-member of the bearing` and the other of which abuts against the outer abutment 3 on the shaft, the wedge member correspondingr to the outer member in Fig. l, being,` applied to the shaft between the other two members, and comprising` as in the first example described, two relativelj,v movable sections which are connected together. and which are operated to move them relativeljvy to elinect the clamping action, by means or tlnoug'h-bolts 8a. VIhese sections, in order to adapt them to cooperate with the two members between which the;Y act, are inclined on both side faces. The purpose ot' this construction is to ali'ord a more extended abutting` surface 'for the relativel)v movable sections', than is atliorded b v the inner surface ot the outer abutment in the arrangement shown in Fig. l. or is afforded by the outer end of the casing-member as shown in Fig'. 4, the inclined surfaces ot' the movable sections havine' a bearing' throughout substantiallv7 their entire extent. against the adjacent stirfaces ot' the members between which they act, the outer surfaces of these latter members engaging respectively the outer end of the casing-member and the inner tace of the outer abutment.

lllhile in the accompanying; drawings l have shonf'n my improved clamping device f clampinen the inner casingas applicable i. member of an antifriction bearing' to its axle or support., it vvi l be understood that the device may be enrgloycd with they EAG@ and equal advantages for securing other parts to their supports, provided that the operation will be substantially as above indicated.I

Having thus described my invention, what l claim is:

l. ln combination with a support provided with Xed abutments adapted to receive between them a part to be clamped, a clamping device. applied to the support between the abutments and including two sections disposed at opposite sides of the support and movable in opposite directions relatively to each other transversely of the support, said sections having their side facesl inclined, and adapted in such movements to coperate with one of the abutments in applying clamping pressure to the part to be clamped in adirection toward the other abutment.

2. ln combination with a support provided with abutments adapted to receive between them a part to be clamped, a clamping device applied to the support between the abutments, said clamping device comprising two members straddling the support and movable one relatively to the other transversely thereof, and provided respectively with reversely inclined surfaces arranged face'to face, said members adapted in their relative movements to cooperate with one of the abutments in 'forcing the part to be clamped in fixed clamped position against the other abutment.

3.In combination with asupport provided with abutments adapted to receive between lthem a part to be clamped, a clamping device applied to said support between the abutments and comprising two sections disposed on opposite sides of the support and movable in opposite directions transversely of the support, and two cooperating sections also disposed respectively on opposite sides of the support and engaged with the movable sections, the adjacent engaging surfaces of said sets of sections b'eing reversely inclined, and adapted to coperate with each other, when the movable sections are moved, to apply a clamping pressure to the part to be clamped, in a direction toward the adjacent abutment. f

il. In combination with a support provided with abutments, a part lto be clamped applied to the support Vand seated against one of the abutments, two members applied to and straddling said supportzbetween the abutments and cooperating with each other,

'one of said members being movable relatively to the other transversely of the support, and said-members cooperating respec? tively with the other abutment and with said'part, to bind the latter against the adjacent abutment.

5. ln combination with a support provided with abutments adapted to receive between'them a part to be'clamped, a clamping device applied to said support between the abutments and comprising cooperating wedge members straddling the support and arranged with their inclined faces in contact andv reversely disposed, one of said members being movable transversely of the support relatively to the other member, and said members adapted to coperate respectively /with one of the abutments and with the part to be clamped in forcing the same in fixed clamped position against the other abutment.

6. ln combination with a support provided with abutments adapted to receive between them a part to be clamped, two reversely disposed wedge members applied to and straddling the support between the abutments and arranged with their inclined 'surfaces face to face, and one of said members being movable relativelyv to the other transversely of the support, and means for controlling the movements of said movable member, one of said members adapted to cooperate with one of the abutments, and

the other member being adapted to coperatie with the part to be clamped in forcing theV same in fixed clamped position against the other abutment.

7. In combination with a support provided with abutments, an annular member surrounding the same andy bearing against one` of the abutments` and a clamping device applied to and straddling said support between the annularmember and the other abutment, said clamping device including two members arranged side by side and having their adjacent faces oppositely inclined and yengaged with each other, and bearing at their opposite faces respectively against the annular member and said other abutment, one of said members being movable transversely of the shaft relatively to the other member; whereby .the annular member will be clamped longitudinally against the adjacent abutment, and will be held firmly in position on the support.

' 8. In combination with a support provided with abutments adapted to receive between them a part to be clamped, a clamping vdevice applied to said support between the abutments and comprising two oppositely movable sections disposed on opposite sides `of the support end to end, and having their adjacent'sides sloping in opposite directions, means for moving said sections in opposite directions transversely of the support, and two cooperating sections also disposed on opposite sides of the support end to end and having -their adjacent sides sloping in opposite directions and engaging the sloping surfaces of the movable sections, one of Said sets of sectionsy engaging one of `the abutments, and the other set of sections adapted to engage the part to be clamped, and said sections operating, when the :movable sections are moved. to bind the part to be clamped iii-miv against the adjacent abutment.

9. lln Combination with a shaft provided with annular projecting abutments. an antiriCtOn Casingnnember surrouiuling` the shaft and seated against one ot' said abutinents., two sections disposed end to end on opposite sides of the shaft between the abut ments and provided in their inner ends with recesses to receive the shaft, said sections having their adjacent sides sloping in opposite directions outwardly from the shaft. and being movable in opposite directions relatively to each other, means Connecting' said sections together and operable to move them relatively to each other, and two eooperating sections also disposed end to end on opposite sides of the shaft and having their adjacent sides sloping` in opposite di rections and engaging' the slopingy sides of the movable sections, one ot said Sets of sections bearing against one ot' the abutments, and the other set bearing against the easing-member.

lo. in combination with a support provided with ied abntnients adapt-ed to receive between them a oa to be clamped7 a Clamping device applied to the supportbetween one of the abutments and the part to be clamped and ineludingi` a wedge-.shaped Clamping member strnddling' the support and movable transversely thereof and aetinin such movement to cooperate with said abutment in forcing the part to be clamped away from said abutment in fixed clamped position against the other abutment.

ll. In combination withy a support provided with fixed abutments forming definito and posit-ive stops, a member to be clamped disposed between said abutlnents, a clampin ey device applied to the support between one. ot the abutments and the member to be clamped. said device comprising two menibers formed on their side. faces with slopin;` wedgging` Surfaces and movable toward each other and being' adapted in their movements to cooperate with the vsaid abutment in foreinfi the member to be clamped into lixed clamping` position againet the other alnitmenta n testimoniY whereof, have ailixed my signature in presence of two witnesses.

BUD@ D GRAY,

@fitness s:

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