US1107640A - Machine for working hides and leather. - Google Patents

Description

H. ALEPS.

MACHINE FOB WORKING HIDES AND LEATHER. APPLICATION FILED JULY 28,1911.

1,107,640, Patented Aug. 18, 1914 5 SHEETS-11331 1.

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H. ALEFS.

MACHINE FOR WORKING HIDES AND LEATHER. APPLICATION FILED JULY 26, 1011.

1,107,640, Patented Aug. 18, 1914.

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H. ALBFS.

MACHINE FOR WORKING HIDES AND LEATHER APPLICATION FILED JULY 28, 1011.

1,107,640. Patented A1 1g.18, 1914.

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MACHINE FOR WORKING HIDES AND LEATHER. APPLICATION FILED JULY 28, 1011.

1,107,640. Patented Aug. 18, 191i 5 SHEETS-$11231 4.

rut; AORRIS I-FIERS 60.. PIIOTO-LITIIO., WASHINGTON. D, C.

H. ALEFS.

MACHINE FOR WORKING HIDES AND LEATHER.

A PPLIOATION FILED JULY 28,1911.

jQ/rreidef HENRY ALEFS,

OF MILWAUKEE, WISCONSIN.

MACHINE FOR WORKING HIDES AND LEATHER.

Specification of Letters Patent.

Application filed July 28, 1911.

Patented Aug. 18, 1914.

Serial No. 641,010.

To all whom it may concern Be it knownthat I, HENRY Annrs, a citizen of the United States, residing in Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Machines for lVorking Hides and Leather, of which the following is a description, reference being had to the accompanying drawings, Vv'lllCll are a part of this specification.

This invention relates to machines for hide and leather working, and pz'irticularly to that class of machines wherein the work is thrown upon a concave support and there clamped while a rotating cylinder having cutting blades or other working parts is swung over the surface thereof, and an object of the invention is to improve upon details of mechanical construction of the machine covered by my United States Letters Patent No. 972,792, dated October 18, 1910, for hide and leather working machines, to reduce the power necessary to operate the machine by providing the swinging cylinder frame with a counterweight and operating it by means of a segmental gear thereon meshing with stationary worm driven pinions.

Another object of the invention is to dispense with the chain drive for the working cylinder of my former construction and substitute a shaft and gearing drive connection therefor.

Another object of the invention is to improve on the construction of the yielding mounting for the stiff back plate for the rubber bolster.

Another object of the invention is to improve upon details of general construction of the machine.

With the above and other objects in view the invention consists in the machine for hide and leather working therein claimed, its parts and combinations of parts and all equivalents thereof.

Referring to the accompanying drawings in which like characters of reference indicate the same parts in the different views: Figure 1 is an end elevation of a machine for hide and leather working constructed in accordance with this invention; F 2 is a plan view thereof; Fig. 3 is a sectional view on the plane of line 33 of Fig. 2; Fig. 4 is a sectional view on the plane of line -l-1 of Fig. 2, showing the swinging frame in a travelingposition and the clamping frame.

lowered; and, Fig. 5 is a rear view of the, j machine.

In these drawings the machine is shown to be constructed on a frame which comprises end castings 10 connected at their upper corners by angle iron beams 11 and 12".! respectively and at their lower rear corners by an angle iron connecting bar 13 to give rigidity to the frai'nc, there being a central end meshing with a gear wheel 20 on a shaft 21 which is 'journaled in bearings 22 on the end frames 10.

The shaft 21 has sleeves 23 mounted thereon and each sleeve 23 is formed on a segmental gear 2-il having rigidly fastened to it an arm 25 which is thus pivotally mounted on the shaft 21 and is capable of a swing-i 2 ing movement. At their outer ends the arms 25 form bearings 26 for a pair of working cylinders 27 which are caused to constantly g5 rotate in the direction of the arrows in Fig. l-. Pinions 28 at one end of the cylindcrs27". T mesh with a gear wheel 29 mounted on a stud of one arm 25. The gear wheel 29 carries a beveled pinion 30 meshing with a beveled pinion 31 and a shaft 32 which is jo'urnaled in bearings 33 on the arm 251? and has a beveled pinion 3st at its other end meshing with a beveled pinion 35 on shaft The frame formed by the arms 25 and their cylinders is caused to swing on shaft 21. by the segmental gears 24: meshing with? pinions 2-36 on a shaft 37 which is journaled across the frame in brackets 38 and this shaft 37 may be driven in any desirable manner under the control of the operator. It has been found desirable, however, to drive the shaft 87 by worm gearing so that the swinging frame may be stopped in any position and held there without the neces- 5 sity for a brake. For this purpose a worm wheel 39 is keyed on shaft 37 and is contained within an inclosing casirlg 40 in which is journalcd a shaft 41 carrying a worm 4C2 in mesh with the Worm wheel 39 and also carrying a beveled pinion 43 meshing with a pair of beveled gears 44 and i 45 which are loosely mounted on a shaft 46 j ournaled in bearings 47 on beam 12-. Each of the beveled gears 4.4 and L5 is provided with a clutch 48 operated by a lever 49 for connecting it with shaft l6. As the shaft &6 is provided with a belt pulley 50 by which it is driven from any suitable source of power the engagement of one clutch 48 serves to lock the gear as to the shaft and cause theswinging frame to move in one direction, while the operation of the other clutch serves to lock the gear l5 with the shaft to move the swinging frame in the opposite direction. The two clutch levers 49 are connected by a link 51 and are also con nected by a link 52 with a crank arm on a shaft 5a journaled across the end of the machine and having a crank arm 55 on its front end connected by a link 56 with a hand lever57. By this means the clutches may be thrown by the operator at the front of the machine but preferably means is provided for automatically restoring the lever to its central. position for disconnecting both clutches whenever the swinging frame reaches the end of its movements in either direction.

The weight of the swinging frame and the working cylinders is counterbalanced by suspending a weight 58 from a point on the segmental gears 24 which is approximately opposite the cylinders. This weight is suspended by means of chains 59 passing over guide rollers 60 on the frame and connecting with eyes 61 on the segmental gears 24.. The weight 58 is preferably formed of a single piece of metal with recesses provided therein to receive the legs of the frame, the recess for the bracket post 14 being bridged by a plate 62 to form a guide for the weight and the ends of the weight having projections 63 which in the lowermost position of the swinging frame nearly engage the horizontal portions of the end frame so that in case the chains or other connections should break, the weight would not have far to fall.

A rod 64: is horizontally mounted in in clined slots of the end frame and is engaged by set screws 65 for holding it in its adj ustments. A similar rod 64. is correspondingly mounted and carries crank arms 65. Angular levers 66 are fulcrumed on the rods 6st and the crank arms 65 the longer ends of the upper levers extending downwardly and the longer ends of the lower levers extending upwardly. The shorter ends of the levers 66 are pivotally connected to ears on the underside of a bolster support which comprises a concaved sheet metal plate 67 held stiff and rigid. as to shape by means of angle rods 68 on the back thereof. This stiff and rigid back plate for the bolster is yieldingly mounted by means of the levers 66, said levers being spring pressed at their longer ends by having coil springs 69 confined between adjusting screws 70 on said ends of the levers and bearing blocks 71 pivotally mounted on the bolster back plate. These longer ends of the levers 66 are guided between perforated parallel guide of a bolster 75, usually a heavy sheet of rubher, which hangs loosely on the back plate 67, being entirely free at its lower edge.

A clampingframe is pivotally mounted to cooperate with the breastbeam 74C in holding the work during the action of the cylinders thereon, and such clamping frame preferably comprises a clamping strip 76 connected between a pair of arms 77 which. are pivotally mounted on the brackets 38 so that said clamping frame may swing from the position shown in Fig. 3 to the position shown in Fig. 4i. iii-shaped hooks 78 are pivotally mounted on the arms 77 of the clamping frame in position for engagement with rollers 79 on the main frame and pins 80 on the arms 25 of the swinging frame are adapted to engage and disengage these hooks for locking and unlocking the clamping frame. On the downward movement of the swinging frame the clamping frame moves with it, bearing thereon by means of the locking hooks 78 engaging the pins 80.

When the clamping strip 76 engages the Ina-j teria-l which has been thrown over the breast beam 7 1 and rests upon the bolster 75, its downward. movement is arrested, but the pins 80 in traveling along the rounded lower portion of the locking hooks 78 force the locking hooks beneath the rollers 79, such rounded surface of the hooks engaged by the pins acting as cams for this purpose and the hooks serving as wedges or cams in their bearing beneath the rollers 7 9 for firmly drawing the clamping frame down upon the material to securely h old it against slippage. A water spray pipe 81 may be provided to spray water on the work and a flexible apron 82 may be attached to the clamping strip 76 to prevent the water being sprayed on the operator.

The back plate for the bolster, which is stiff and unyielding in itself, is yieldably mounted by means of the spring pressed levers so that it may give as the cylinders travel over it and assure the material being held against the cylinders with sufficient pressure to cause the cylinders to perform the work required of them without going so deeply into the hide as to injure it during the unhairing or unfieshing operation.

The swinging cylinder frame being counterbalanced enables the machine to be operated with a motor of much less horsepower than before, for the cylinders as well as the frame are very heavy in order to properly perform their work. The worm drive for swinging the frame permits of the cylinders being stopped at any point of their travel without the use of a brake or other means for holding them and the possibility of accident to the operator by the falling of the swinging frame in event of the counterweight connections becoming broken.

W hat I claim as new and desire to secure by Letters Patent is: y

1. A machine for hide and leather working, comprising a swinging frame, a cylinder carried by the swinging frame, means for supporting work in the path of the cylinder, sleeves on the swinging frame forming pivotal connections therefor, a suitably driven shaft passing through the sleeves and having a driving connection with the cylinder, a segmental gear secured to the swing ing frame and. extending beyond the shaft, a suitably driven pinion meshing with the segmental gear for swinging the frame, and a weight suspended from the segmental gear beyond the shaft for counterbalancing the swinging frame.

2. A machine for hide and leather working comprising a swinging frame, a cylinder carried. by the swinging frame, means for supporting work in the path ofthe cylinder, sleeves on the swinging frame, a suitably driven shaft passing through the sleeves, means for swinging the frame. a beveled gear on the shaft, a shaft carried by the swinging frame, a beveled pinion thereon meshing with the beveled gear, a pinion on the cylinder, and a gear wheel. carried by the swinging frame and meshing with the pinion on the cylinder and geared to the shaft which is carried by the swinging frame.

3. A machine for hide and leather working, comprising a swinging frame, a cylinder carried by the swinging frame, means for supporting work in the path of the cylinder, a shaft supporting the swinging frame, a shaft carried by the swinging frame, a pinion on the cylinder and a gear wheel carried by the swinging frame and meshing with the pinion on the cylinder and geared to the shaft which is carried by the swinging frame, two gears mounted on the shaft supporting the swinging frame, one loosely mounted thereon. and power driven means connected with each of said two gears, one for swinging the frame and the other for driving the cylinder carried by the frame.

4. In a hide working machine the combi' nation with a main f 'ame, a swinging frame mounted therein, a hide working cylinder mounted in the swinging frame parallel with the axis on which it swings, means for swinging said frame and means for rotating said cylinder, of a concave support approximately concentric with the axis about which the cylinder swings, levers fulcrumed to the main frame and pivoted to said support, and springs acting on said levers and tending to move the support toward the path of said cylinder.

5. In a hide working machine the combination with a main frame, a swinging frame mounted therein, a hide working cylinder mounted in the swinging frame parallel with the axis on which it swings, means for swinging said frame and means for rotating said cylinder, of a concave support approximately concentric with the axis, levers pivotally connecting said support with the main frame, springs acting on said levers and tending to move said support toward the path of said cylinder, and means for separately adjusting the tension of the said springs.

(i. In a hide working machine the combination with a main frame, a swinging frame mounted therein, a hide working cylinder mounted in the swinging frame parallel with the axis on which it swings, means for swinging said frame and means for rotating said cylinder, of a concave support approximately concentric with the axis, levers pivotally connecting said support with the main frame, springs acting on said levers and tending to move said support toward the path of said cylinder, and stops limiting the movement of said support toward said support toward said path.

7. In a hide working machine, the combination with a main frame, a swinging frame mounted therein, a hide working cylinder mounted in said swinging f'ame parallel with the axis on which it swings, means for swinging said fran'ie and means for rotating said cylinder, of a concave support approximately concentric with said axis, levers pivotally connecting said support with the main frame, springs acting on said levers and tending to move said support toward the path of the cylinder, and adjustable stops for limiting the movement of said support toward said path.

8. In a hide working machine the combination. with a main frame, a swinging frame mounted therein and a rotary hide working cylimlcr carried by said swinging frame parallel with the axis on which it swings, of a concave support approximately concentric with said axis, two pairs of levers pivoted to said support, one pair being pivoted to the main frame and the other pair connected therewith by rocker arms, and springs interposed between said support and levers and tending to move the support toward the path of the cylinder.

9. In a hide working machine the combination with a main frame, a swinging frame mounted therein and a rotary hide working cylinder carried by said swinging frame parallel with the axis on which it swings, of

a concave support approximately concentric with said axis, levers pivotally connected with said support and with the main frame, adjusting screws threaded in said. levers and provided with spring seats, opposing spring seats pivoted to said support and springs interposed between said seats.

10. In a hide working machine the combination with a main frame, a swinging frame mounted therein and a rotary hide working cylinder carried by said swinging frame parallel with the axis on which it swings, of a concave support approximately concentric with said axis, levers pivotally connected with said support and with the main frame, springs interposed between said support and levers and tending to move the support toward the path of the cylinder, arms fastened about said support transversely to said levers and each formed with a series of holes, and stop pins fitted in said holes for limiting the. movement of said levers and determining the normal position of said support.

11. In a hide working machine the combination with a main frame, a swinging frame mounted therein, a rotary cylinder carried by said swinging frame parallel with the axis on which it swings, and a work support in the path of said cylinder, of gears on said swinging frame concentric with the axis on which it swings, a shaft arranged parallel with said axis and provided with a Worm gear and with pinions meshing with the gears on said swinging frame, a worm meshing with said worm gear, and means for driving said worm in opposite direc-- tions.

12. In a hide working machine, the combination with a main frame, a swinging frame mounted therein, 'a rotary cylinder carried by said swinging frame parallel with the; axis on which ltSWlIlgS and a work support in the path of said cylinder, of gearsmounted on said swinging frame concentric with its axis of oscillation, a shaft parallel with said axis and provided with a worm gear and with pinions meshing with the gears on said swinging frame, a shaft arranged transversely to said axis and provided with a bevel gear and with a worm meshing with said worm gear, a driving shaft parallel with said axis and provided with bevel gears loosely mounted thereon and meshing with the gear on said worm shaft, and clutches for locking either of the driving gears on the driving shaft, and thereby reversing the; movement of the swinging cylinder frame.

In testimonv whereof, I affix my signature, in presence of two witnesses.

HENRY ALEFS.

Witnesses: i

R. S. C. CALDWELL, KATHERINE HOLT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. T

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