US1238235A - Hide-working machine. - Google Patents

Description

R. F. WHITNEY.

HIDE WORKING MACHINE.

APPLICATION FILED lAucml. I9I4. 1,238,235. I Patented Aug. 28,1917.-

3 SHEETS-SHEET I.

R. {.WHITNEY. HIDE WORKlNG MACHINE. APPLICATION HLED AUG.8.1914.

Patented Aug. 28, 1917f 3 SHEETS-SHEET 2 j -g v ITT/U67 R. F. WHITNEY.

HIDE WORKING MACHINE.

APPLICATION FILED AuG.a.1914.

Patented Aug'. 28, 1917.

3 SHEETS-SHEET A3.

OFFICE."

.ROBERT F. WHITNEY, 0F WINCI-IESTER, MASSACHUSETTS.

HIDE-WORKING MACHINE.

Specification. of Letters Patent.

Patented Aug. 28, 1917.

Application led August 8, 1914. Serial No. 855,753.

To all whom t may concern.'

Be it known that I, ROBERT F. VJHITNEY, a citizen of the United States, and a resident of li/vinchester, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in lLlide-l/vorking Machines, of which the following is a specication.

This invention relates to machines for fleshing, nnhairing and working hides, sides and skins and is an improvement on the device described in Letters Patent of the United States issued to me July 22, 1913, No. 1,068,032. Its objects are:

To provide proximate and direct means for cushioning the bed roll supports; to provide manual means for separating the rolls; to provide an adjustable pinch roll; to provide automatic means for moving the bed roll into operative relation with the work roll and feed roll in such manner as to secure an angular relation, as distinguished from a parallel relation, between the rolls, when in operation, corresponding to the natural taper in the thickness of the sides to be operated on; to provide automatic means for reversing, after each operation, the direction of such taper between the rolls; to provide means under the control of the operator for reversing the direction of such taper and for neutralizing, or rendering inoperative, such automatic taper producing means at will.

The invention is illustrated by the accompanying drawings in which Figure 1 is a front elevation of the machine;

Fig. 2 is a side elevation of the machine looking from the left of Fig. 1;

Fig. 2zL illustrates the taper between the bed roll and work roll.

Fig. 3 is a side elevation of the machine looking from the right of Fig. 1;

Fig. 4 is a section on the line 4-4 Fig. 1 showing the indicator;

Fig. 5 is an enlarged section on the line 5 5 Fig. 3;

Fig. 6 is an elevation looking from the right of Fig. 5; and

Fig. 7 is a reduced section on the line 7 7 Fig. 5.

The main frame of the machine comprises side frames 1 connected by tie girts 2. The

work roll 3 is mounted on shaft 4 journaled in bearings in the frame and provided with operating blades 5. The bed roll 6 is mounted on shaft 7 jonrnaled in bearings in swinging arms 8, 8u, pivoted at 9 to the frame and furnishedwith upwardly extending projections 8". The feed roll 10 is mounted on shaft 11 journaled in bearings in arms 12 pivoted at 13 to the frame. The pinch roll 14 is mounted on shaft 15 journaled in bearings in rods 16 adjustably pivoted at 16L to projections 8b of swinging arms 8, 8a.

he swinging arms 8, 8a are moved about their pivots 9 by levers 17 pivoted at `18 to the frame and connected to said swinging arms by links 19 comprising, each, a cylinder 20 pivoted at 2OEL to said levers and a spring controlled plunger 21 disposed in said cylinder and pivoted at 21l to said swinging arms. The threaded levers 22, adjustably fulcrumed on the frame at 23, are furnished on their inner ends with eX- tensions 22, connected by handle bar 24, and on their outer ends with counterbalancing weights 25. The arms 26 are attached to these levers 22, at their inner ends, in such manner as to have a limited swinging movement, and have their free ends concaved to engage sleeves 15a on pinch roll shaft 15; the arrangement being such that the operator, by depressing said handle bar 24, separates the rolls. The rearward movement of handle bar 24 is limited by the frame of the machine. The rods 27 extend through the upper part of the frame-in sliding engagement therewith and are furnished on their upper ends with nuts 28, which engage said frame and limit the downward travel of said rods; the lower ends of said rods being pivoted at 29 to arms 30 which are in turn pivoted at 31 to the frame and rest upon sleeves 15b on pinch roll shaft 15, when said pinch roll is in its operative position. The springs 27 a are so arranged upon the rods 27 as to provide a cushion for the pinch roll and feed roll.

The levers 17, pivoted at 18 to the frame, are pivoted at 32 to eccentrics 33 on shaft 34 furnished with gears 34a and 35.

The clutch mechanism, employed to actuate shaft 34, comprises driving member 36 and driven member 37, each rotatably mounted on lixed'shaft 38, the driving member being furnished (Figs. 1 and 2) with gear 362L and the driven member being furnished (Fig. 2) with gear 37a.

rlhe driven member 37 of the clutch carries dog 37b adapted to engage slotted portions 36b of driving member 36 and to be held in such engagement by spring 45 disposed in said driven member, but normally held out of such engagement by 'weighted lever 39, pivoted at 40 to the frame, centrally engaging and depressing said dog and having its free end engaged by lever 41 pivoted at 42 to the frame and connected by cord 43 with treadle 44, loosely engaging shaft 34; by depressing which treadle, the operator raises said lever 39, permitting dog 37b to engage a slotted portion 36h, thereby engaging the clutch members; the threaded rods 49, adjustably mounted on the frame, furnish stops for limiting the inwardy travel of swinging arms 3, 8a.

Automatic means for throwing the bed roll out of parallel relation with the work roll and feed roll, thereby leaving a tapering space between the bed roll and work roll and a similar space between the bed roll and feed roll, when in operative relation, and for changing the direction of such tapers after each operation of the machine; and means under the control of the operator for changing the direction of such tapers, when the rolls are in their inoperative relation; or for rendering inoperative said automatic taper forming means, comprise the following mechanism:

The stop 50 (Fig. 3) is adjustably mounted on one end of shaft 52, journaled' inthe frame, to which end is secured the arm 51 connected by link 53 with crank pin 54 adapted to slide diametrically on the crank bar 55 fixed to double crank 55c rotatably mounted on fixed stud 56 and furnished with gear 57 adapted to be engaged and driven by gear 34;L on shaft 34. The cam disk 58 is fixed to fixed stud 56 and furnished near its outer edge with two diametrically opposite bosses 58a; the crank bar 55 is furnished with passages 55a so arranged as to travel over the bosses of the cam disk, as said crank bar is rotated; within which passa-ges 55a are loosely disposed tumbler pins 59'; the sliding crank pin 54 contains a spring controlled plunger 54a extending through a passage 54D leading therefrom and adapted to register with said passages 55EL in the crank bar, which is also furnished exteriorly with the countersink 55b adapted to receive the end of the plunger 54a; the crank pin 54 is connected by link 60 with arm `61 fixed to shaft 62,.to which shaft is also fixed hand lever 63.

On the opposite end of shaft 52 (Fig. 2) is adiustably mounted stop 50, the relative positions ofl stops 50 and 50 being substantially as shown.

The indicator 64 is mounted on the frame opposite the lever 63 and is marked to indicate the positions of the lever corresponding to the direction of the taper between the rolls, or the position of the lever, when no taper exists.

The drive comprises the following gears and pulleys: Pinions 70, 71 fixed to shaft 72, to the outer end of which shaft is fixed the driving pulley 7 3; gears 74 and 75 fixed to bed roll shaft 7; gear 76 fixed to feed roll shaft 11; gear 77 fixed to pinch roll shaft 15; idlers 7 S and 79 connecting pinion 70 with gear 36EL of the driving clutch member; gear 37L ofthe driven clutch member; gears 34a and 35 on shaft 34; gear 57 on double crank 55C, and pulley 30 fixed to work roll shaft 4.

The operation of the machine is as follows:

Normally the rolls are separated and the clutch members disengaged, work roll shaft 4 being driven by pulley 80; and pinions 70 and 71 and driving clutch member 36 being driven by pulley 73. The operator, by depressing treadle 44, brings the clutch members into engagement, thereby bringing the rolls together, engaging bed roll shaft g-ear 74 with pinion 71, bed roll shaft gear 75 with feed rolll shaft gear 76, and pinch roll shaft gear 77 with said feed roll shaft gear 76.

As soon as the clutch members become engaged, the treadle is released and, as soon as the rolls come together, the clutch members become automatically disengaged, leaving theV rolls together, till the treadle is again depressed, when the rolls are separated, etc., all in a well known manner by the mechanism shown and described, or by any other suitable mechanism.

This invention, however, has principally to do with means for securing, reversing and abolishing the taper between the rolls. rllhe drawings show the rolls together, with swinging arm 8 (Fig. 2) engaging stop 50a on shaft 52, while swinging arm 3 (Fig.

and stop 50 on saidv shaft are out of engagement, thereby securing a taper between the rolls increasing'in width from right to left of the machine. As the rolls are separated, link 53 is raised, thereby lowering stops 50 and 50a, so that, when the rolls are again brought together, swinging arm 8 will engage stop 50, while swinging arm 3a and stop 50a will be out of engagement, thereby reversing the direction of the taper etc. rlhis is allV automatic, but the operator may at any time, when link 60 and crank bar 55 are in alinement (or approximately so), which is always the case when the rolls are in their inoperative position, manipulate lever 63. thereby sliding crank pin 54 from one extreme position to the other on crank bar 55 and reversing the relative position of stops 50 and O; or the operator may, by means of said lever G3, move the crank pin into a central position on the crank bar, thus moving both the stops into inoperative position and preventing the creation of any taper.

The diameter of gear 3%@ is one-half that of gear 57.

The passages a are concaved outer entrance as shown in Fig.

The slidable crank pin 5a and crank bar 55 are locked together by means of the spring controlled plunger 54a which slidingly engages one of the passages 55 and engages endwise the tumbler pin 59 slidingly disposed in said passage, said tumbler pin being held against the cam disk 5S, as said crank bar rotates over it, by said spring controlled plunger; and, when the bosses 58L on said cam disk are beneath said tumbler pin, they torce said pin farther into said passage, thereby driving plunger 54a nearly out of said passage, so that it engages simply the concaved outer entrance thereto; and, when in this position, the operator is enabled, by means of lever 68, to force said plunger entirely out of said passage and slide it along said crank bar until it engages the centrally disposed countersink 55b on said crank bar, or enters the oppositely disposed passage 55a therein; thereby, as heretofore explained, rendering inoperative the automatic taper forming means, or reversing the direction of the taper between the rolls, as the case may be.

It thus appears that, by the mechanism shown and described, provision is made for automatically securing a taper between the rolls running alternately in opposite directions, a provision particularly useful in working sides; and that provision is also made for rendering inoperative such'taper forming means, when desired, as for instance when skins, or certain classes of hides, such as bulalo sides, are to be operated on, or in the operation of unhairing hides and skins; thus adapting the machine for use in the various processes of fleshing, unhairing, or working whole hides, sides, or skins.

The improvements, which I have made, are shown and described as applied to a machine in which the bed roll is mounted in swinging arms, but they are applicable as well to machines in which the bed roll is mounted in other forms of movable supports. I employ the term swinging arms as gencric rather than specific and regard the swinging arms and the movable supports spoken of as equivalents.

I claim:

l. In a machine of the character described, in combination, a work roll and a bed roll, with automatic means for moving the bed roll into and out of angular operative relation with the work roll, leaving a space beat their tween said rolls tapering. alternately in opposite directions; said" means comprising swinging arms carrying the bed roll, an oscillating shaft carrying adjustable stops adapted to alternately engage said swinging arms, limiting their inward movement, crank mechanism for oscillating said shaft, and clutch mechanism operatively connected with the swinging arms and with the crank mechanism; together with treadle mechanism for operating the clutch.

2. In a machine of the character described, in combination, a work roll; a bed roll mounted in swinging arms movable to and away from said work roll; an oscillating shaft carrying adjustable stops adapted to alternately engage said swinging arms, limiting their inward movement; crank mechanism for oscillating said shaft; clutch mechanism operatively connected with said swinging arms and with said crank mechanism; and treadle mechanism for operating said clutch mechanism; said crank mechanism including a crank pin slidably mounted on a crank bar, with automatic means for locking said pin in certain predetermined positions on said bar; and a lever under the control of the operator adapted to slide said pin along said bar to said predetermined positions.

3. In a machine of the character described, in combination, a work roll and a bed roll, with automatic means for moving the bed roll into and out of angular operative relation with the work roll, leaving a space between said rolls tapering alternately in opposite directions; said means comprising swinging arms carrying the bed roll, an oscillating shaft carrying stops adapted to alternately engage said swinging arms, limiting their inward movement, crank mechanism for oscillating said shaft, and clutch mechanism operatively connected with the swinging arms and with the crank mechanism; treadle mechanism for operating the clutch; and means under the control of the operator for oscillating said shaft, thereby reversing the operative relation of said stops, or rendering said stops inoperative, as desired.

4f. In a machine of the character described, in combination, a work roll and a bed roll; automatic means for moving the bed roll into and out of angular operative relation with the work roll, leaving a space between said rolls tapering alternately in opposite directions; and means under the control of the operator for reversing the direction of such taper.

5. In a machine of the character described, in combination, a work roll and a bed roll; automatic means for moving the bed roll into and out of angular operative relation with the work roll, leaving a space between said rolls tapering alternately in opposite directions; and means under the control of the operator for rendering inoperative said automatic taper producing means.

6. In a machine of the character described, in combination, a work roll and a bed roll; automatic means for moving the bed roll into and out of angular operative relation with the work roll, leaving a space between said rolls tapering alternately in opposite directions; and means under the control of the operator for reversing the direction of such taper, or rendering inoperative said automatic taper producing means7 as desired.

7. ln a machine of the character described7 in combination, a work roll; a bed roll mounted in swinging arms movable to and away from said work roll; and means for actuating said swinging arms operatively and yieldingly connected therewith.

8. In a machine of the character described, in combination, a work roll; a bed roll mounted in swinging arms; a feed roll mounted in pivoted arms; a pinch roll mounted in rods pivoted to said swinging arms of the bed roll; and levers with intermediate mechanism engaging the pinch roll shaft7 whereby the operator may separate said rolls, when in their operative position.

9. In a machine of the character described, in combination, a work roll; a bed roll mounted in movable supports; a feed roll mounted in pivoted arms; a pinch roll mounted in rods pivoted to said movable supports of the bed roll; and manual means operatively connected with said movable supports of the bed roll, whereby the operator may ease the pressure between said rolls, when in their operative position.

l0. ln a machine of the character described, in combination7 a work roll; a bed roll mounted in swinging arms; a feed roll mounted in arms pivoted directly to the frame of the machine; and a pinch roll coacting with said feed roll and journaled in rods pivoted to said swinging arms of the bed roll.

In testimony whereof l have affixed my signature, in presence of two witnesses.

ROBERT F. WHITNEY. Witnesses:

RALPH W. FOSTER, Groen Gr. CLARK.

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

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