US2003501A - Table model pressing machine - Google Patents

Description

June 4, 1935. E DAVIS HAL 2,003,501

'TABLE MODEL PRESSING MACHINE Filed Sept. 25, 1930 5 Sheets-Sheet 1 -1- Mam ,1 TTORNEYS.

I June 4, 1935. E. DAVIS ET AL 2,003,501

TABLE MODEL PRESSING MACHINE Filed Sept. 25, 1950 5 Sheets-Sheet 2 12 Y 1NVENTOR.$

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June 4, 1935. E. DAVIS ET AL TABLE MODEL PRESSING MACHINE 5 SheetS-Sheet 3 Filed se t. 23, 1950 5 w J r H H -m- \w N w 1 l. I & w 5 5 2,8

Patented June 4, 1935 I UNITED STATES PATENT OFFICE TABLE MODEL PBESSING mom Ernest Davis and Albert Kagl, Syracuse, N. Y., aasignors to The Prosperity Company, Inc., Syracuse, N. Y., a corporation of New York Application September 23, 1930, Serial No. 483,877

4 Claims. (01. 68-9) This invention relates to pressing machines Figure 9 is a sectional view along the line 9-9 and particularly to pressing machines of the type of Figure 4. adapted to be placed on a table or work bench. Referring to Figures 1 and 3, the improved The principal object of the invention is to depressing machine includes a base portion I 5 vise a table model pressing machine in which the which is preferably constructed of pressed metal 5 base portion and yoke member are constructed and is provided with legs H by which it rests on of pressed metal. A further object of the invena suitable support such as a table or work bench tion is to form the pressed metal parts comprisl2. A fixed pressing element or buck I5 is rigidly ing the base portion and yoke member into houssecured to a neck l6 which is mounted on the 10 ings for accommodating therein all of the press base portion "land secured thereto by suitable 10 actuating mechanism. The advantage of conmeans such as bolts H. A movable pressing elestru'cting a pressing machine of sheet metal is ment 20 is mounted on a yoke member 2| in to obtain great strength and rigidity at a substanthe conventional manner and the yoke member tial saving in weight and expense. The advan- 2| is pivotally mounted on the base portion I0 at tage of forming the sheet metal parts so as to 23. .A handle 25 is mounted on the yoke member 15 form a housing for the press actuating mecha- 2| and provides means by which an operator may nism, is to protect the operator, or any persons move the yoke member 2| and head 2|) to bring standing near the press from being injured by the head into contact with the buck IE to close exposed operating levers, to protect the operating the press.

20 mechanism from injury and dirt, and to obtain The head 20 contains electrical heating units 20 a more compact and eificient press which is par- 21 which are mounted on suitable insulating ticularly neat in appearance. material 28 and contact with the back of a face A further object of the invention is to provide plate'30 of the pressing head 20. Electrical ena pressing machine having a movable pressing ergy is supplied to the heating units 21 through element containing electrical heating units which a conductor 32 which passes from the head 20 25 are supplied with power through a conduit which through the yoke member 2| and through the connects with the yoke member, on which the pivotal connection in a manner later to be demovable pressing element is mounted, at substanscribed. tially the pivotal axis of the yoke member. A bearing member 35 is secured to the base Other objects and advantages will appear and portion ID by suitable means such as rivets 36 30 will be pointed out as the description proceeds. and the bearing member is provided with an The invention consists in the novel features upstanding arm 38 which extends above the base and in the combinations and constructions hereportion Hi. The yoke member 2| is of substaninafter set forth and claimed. tially U-shaped cross section and mounted with 35 In describing this invention, reference is had its open side facing downwardly. The upstand- 35 to the accompanying drawings, in which like ing arm 38 extends up into the interior, or chamcharacters designate corresponding parts in all her, of the yoke member 2|. A bolt 48 extends the views. through the forward end of the yoke member 2| Figure 1 is a front elevation of a pressing maand a counter-spring 42 is provided with end 0 chine embodying the invention. members 43 and 44 which connect the spring 42 Figure 2 is a fragmentary view of the lower with the upstanding arm 38 and bolt 40, respecportion of one of the pressing elements showing tively. Due to the fact that the upstanding arm the electrical heating 38 extends above the pivotal connection 23, the

Figure 3 is a side elevation of the pressing counter-spring 42 will tend to move the yoke 5 machine shown in Figure 1. member 2| to open the press. Thusthe counter- 45 Figure 4 is a sectional view of the pressing maspring 42 and the means connecting it with the chine shown in Figure 3. upstanding arm 38 and bolt 40 provide means Figure 5 is a section taken along the line 5-5 for operating the yoke member 2| to move the of Figure 4. press into open position.

Figure 6 is an enlarged fragmentary view of A slot member 45 is rigidly secured to the yoke 50 a portion of the mechanism shown in Figure 5. member 2| by fastening means 41. The base Figure 7 is an enlarged fragmentary view of portion I0 is provided with an opening 50, see a portion of the mechanism shown in Figure 5. Figure 5, and the lower end of the yoke member Figure 8 is a section along the line 8-8 of 2| extends through this opening 50 and into the Figure 5. base portion Ill. The yoke member 2| is of suflicient width to substantially fill the opening 50- and is curved with respect to the axis of rotation of the pivotal connection 23 so that as the press opens the lower end of the yoke member 2| may move further into the base portion I0.

An operating link 52 is mounted within the base portion I0 on a shaft 54 which is supported in bearing brackets 55 mounted on an adjustment plate 51 (Figures 4 and 5). The bearing between the operating link 52 and shaft 54 includes a slot 60 which permits a limited movement of the operating link 52 transverse to the axis of the shaft 54. A shaft 62 is mounted in suitable bearings such as ball bearings 64 which are contained in a forked end of the operating link 52. The shaft 62 extends through and operates in a slot 65 of the slot member 45. When the press is in open position the shaft 62 will be at the upper end of the slot; 65, as shown in dashed lines in Figure 3. When the press is closed, the slot member 45 will move about the axis of the pivotal connection 23 until the shaft 62 is at the lower end of the slot 65, as shown in Figure 4. The slot 65 is provided with a recess portion 66, at the lower end thereof, the purpose of which will be explained hereinafter.

Oneend of the shaft 54 extends through the end of the base portion I0 and an actuator or operating lever 61 is rigidly secured to this extending end portion of the shaft 54 by suitable means such as a pin 68. A follower yoke 10 is mounted on the shaft 54 on both sides of the operating link 52 between the operating link 52 and the bearing brackets 55, (see Figure 5). The follower yoke is rigidly secured to the shaft 54 by suitable means such as pins 12. A shaft 14 is mounted in the forward end of the follower yoke 10 and is supported in suitable bearings such as ball bearings 15 which are held in place by side plates 11. The side plates 11 are screwed to the follower yoke 10 by screws 19. .The members 45, 52 constitute motion transmitting means between the actuator or lever arm 61 which are normally out of cooperative position when the press is open and one of which members is shiftable into operable relation by the closing of the press and by the operation of the actuator.

The operating link 52 is formed with a cam track 82 on the forward end thereof. During closing of the press, the shaft 14 will occupy a position near the top of the cam track 82, as shown in Figures 3 and 4. When the press reaches closed position the lever 61 may be operated to rock the shaft 54 and the follower yoke 10 which is rigidly secured thereto. This rocking movement of the follower yoke 10 will move the shaft 14 downwardly on the cam track 82. The initial downward thrust of the shaft 14 against the track 82 will cause the operating link 52 to pivot about the shaft 54 and raise the shaft 62 into the recess portion 66 of the slot 65. Further downward movement of the shaft 14 will cause the operating link 52 to be thrust rearwardly, to the left in Figure 4, but the recess portion 66 of the slot 65 is of such contour that the shaft 62 will remain in the recess portion 66 and cannot slide upwardly in the slot 65. As the shaft 14 is thus moved downwardly to thrust the operating link 52 rearwardly, to the left in Figure 4, the operating link 52 will slide on the shaft 54, by virtue of the slot 60, and the lower end of the slot member 45 will be thrust rearwardly, to

the left in Figure 4, to apply final heavy pressure between the pressing head 20 and buck I5.

The contour of the cam track 82 may be made in any desired form so as to obtain the most eflicient mechanical advantage in applying final heavy pressure.

In order to have the shaft 14 in proper position for cooperative action with the cam track 82, means are provided for adjusting the position of the bearing brackets 55 in which the shaft 54 is rotatably mounted. This adjusting means includes the adjustment plate 51 on which the bearing brackets 55 are mounted. The adjustment plate 51 is slidably supported on a base 84 and is held against sidewise displacement by guides 85 which are secured to the base 84. The forward end of the adjustment plate 51 is turned up to provide a flange 86 and the forward and aft movement of the adjustment plate 51 is controlled by an adjustment bolt 88 which is threaded into an adjusting knob 90. The adjustment knob 90 is mounted on the outside of the base portion I0 of the pressing machine and may be turned one way or the other to move the adjustment plate 51 forwardly or backwardly so that the shaft 14 will be in proper position for cooperative action with the cam track 82 to apply final heavy pressure to the pressing elements after the press has been closed. This initial closing of the press is effected, as previously described, by pulling downwardly on the handle 25 with sufficient force to overcome the counter-spring 42 which normally holds the press open.

The lower end of the cam track 82 may be formed with a recess which will permit a minute movement of the operating link 52 toward the shaft 14 when the shaft enters this recess in the cam track 82. Such a construction will cause the means for applying final heavy pressure to lock in operated position so that the press will remain closed under heavy pressure until the operator pulls the handle 61 upwardly and thus moves the shaft 14 out of the recess in the cam track 82. When the press is thus released from locked position, the counter-spring 42 will move the yoke member 2| to again open the press. In order to retard the momentum and stop the opening of the press without shock, an air check or shock absorber 85 is oscillatably connected at 96 with the base portion l0 and is pivotally connect- ;cll at 98 with the lower end of the yoke member The yoke member 2| is reinforced at its pivotal connection with the base portion I0. This reinforcement includes a cylinder such as a hollow shaft 00 which passes through opposite sides of the yoke member 2|. The yoke member 2| is bent inwardly to form flanges I02 which are secured to the cylindrical brace or hollow shaft I00 by suitable fastening means I04. The bearing for the yoke member 2| is provided with a pivot shaft I 05 which extends through the hollow shaft I00 and is secured thereto by a bolt I01. The pivot shaft I05 extends through upstanding side portions of the base' I0 and is rotatable therein. Bearing blocks I08 are attached to the base l0, as by welding, to increase the bearing surface for the pivot shaft I05.

The conduit 82 which connects with the heating units 21 in the head 20, extends through openings in the hollow shaft I00 and pivot shaft I05 and extends along the axis of the pivot shaft I 05 to a socket, or other suitable electrical connection IIO, which may be connected with a suitablle source of electric power such as a drop cord 2.

From the above description it will be apparentthat we have provided a pressing machine having a yoke which is so formed that it may be constructed of pressed metal so as to obtain a light rigid yoke member of hollow construction having a chamber therein adapted to receive a part of the press operating mechanism. It will be further apparent that we have provided novel means for furnishing electrical power to a movable pressing element and novel means for operating the yoke member to apply final heavy pressure to the pressing elements.

The invention is illustrated-in its preferred embodiment but changes and modifications may be made without departing from the spirit of the invention as set forth in the appended claims.

What we claim is:

l. A garment or laundry pressing machine including a frame, a lever pivotally' mounted on the frame, cooperative pressing elements one of which is carried by the lever for movement therewith to open and close the press, a link connected to the lever by a lost motion connection for permitting closing of the press relatively to the link, an operating lever mounted in the frame, connections between the operating lever and the link to move it on its pivot and to thrust it endwise, said lost motion connection and the link having cooperating parts operable to lock the two parts together without lost motion, when the press is closed, upon the pivotal movement of the link, whereby the endwise thrust movement of the link transmits motion to the lever to finally close the press.

2. A garment or laundry pressing machine including in combination a frame; a lever pivotally mounted on the frame; a member formed with a slot having an ofiset recess portion secured to the lever; cooperative pressing elements, one of which is mounted on the lever for movement therewith to open and close the press; a link having its rearward end portion operating in the slot to provide a lost motion connection so that the press may close without causing substantial endwise movement of the link; a slidable pivotal connection between the link and the frame; a cam face on the forward end of the link; manually operated lever means pivotally mounted on the frame; a cam follower mounted on the manually operated lever means in position for cooperative action with the cam face so that "when the manually operated lever means is operated the follower will rock the link to move the rearward end into the oflset recess and then thrust the link rearwardly to move the head carrying lever and apply pressure to the pressing elements.

3. The combination called for by claim 2 with means for adjusting the slidable pivotal connection forwardly or rearwardly.

4. In a garment or laundry pressing machine, a frame, a lever pivotally mounted on the frame, cooperating pressing elements, one of which is mounted on the lever for movement therewith to open and close the press, means for actuating the lever including a motion transmitting member and an actuator therefor, said motion transmitting member being connected to the lever by a lost motion connection permitting closing of the press relative to said member and also permitting said member to remain idle, said member having two movements, one an endwise thrusting movement and the other an angular shifting movement, the latter movement acting to couple said member and the lever together in motion transmitting relation when the press is closed and the former, thrusting, movement to actuate the lever when so coupled and means operated by the actuator for eflectlng said two movements.

ERNEST DAVIS. ALBERT KAGI.

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