US806256A - Hide-working machine. - Google Patents

Description

PATENTED DEG. 5, 1905. A. A. HUTCHINSON. I

HIDE WORKING MACHINE. APPLICATION FILED JAN. 17.1905.

8 SHEBTS-SHEEI i.

Fig.1

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Nm 806,256. PATENTED DEC. 5, 1905.

" A. A. HUTGHINSON.

HIDE WORKING MACHINE. V

ABPLIUATION IILBD JAN. 17. 1905.

8 SHEETS-SHEET Z.

Invenior:

"er son, WMQMZZLTZ I PATENTED DEG.5,1905. A. A.- HUTGHINSO-Nf HIDE WORKING MACHINE.

APPLICATION FILED JAN. 17. 1905.

4 8 SHEETS-$11531. 3.

PATENTBD DEC. 5, 1905.

A. A. HUTCHINSON. HIDE WORKING MACHINE. APPLICATION FILED JAN.17. 1905.

8 SHEETS-SHBET 4.

Witnessfi:

No. 806,256. v PATENTED DEC. 5, 1905. A, A. HUTGHINSON; Y HIDE WORKINGMAOHINE. AP PLIO ATIONI'ILED IAN.17. 1905 8 SHEETS-SHEET 5.

I Witnesses: I v Inventor: (Cg/WM 'ilberlfl.uithinson, .71mw. C. by

PATBNTED DEC. 5,1905. A. A. HUTGHINSON, HIDE WORKING MACHINE.

APPLICATION FILED JAN. 17. 1905.

s SHEETSSHBET B.

aw} a Webwsses; ci/wm W MALZ'X PATENTED DB0, 5,1905.

A. A.YHUTGHINSON. HIDE WORKING MACHINE.

APPLICATION EILED JAN. 17. 1905.

8 8HBET8-BHBBT 8.

very slight adjustment in the mechanisms;

' It is an improvement upon the inventions fully shown anddescribed in Letters Patents TUNITED STATES PATENT -orrion. 7

ALBERT A; HUToHINSoN, or WINCHESTER, MASSACHUSETTS;

IDE-WORKING MACHINE.'

' T0 at whom it may concern:

Bei't known that I, ALBERTA. Hurcninson,

I a citizen o f'the United States of America, and

ments in Hide-Working Machines,

the following is aspecification.

a resident of Winchester, in the county of Middlesex and State of Massachusetts, have This invention relates to machines for removing hair and superfluous flesh from hides;

A and particularly to'- that class] of. machines which are adapted to be used for either fleshing or unhairing, and has for its object the production of such a machine which may be readily adaptedfor either purpose'with but No. 745,353, issued to me December 1, 1903, and No. 762,415, issued to me June14, 1904.

It'consists in certain novel features of construction and arrangement of parts which will be readily understood by reference to the de- 'scription of thedrawings and to the claims to Fig. 1. s5

be hereinafter given.

Of the drawings, Figure 1 represents a front elevation of the left end of a machine em"- bodying this invention. Fig.2 represents a front elevation of the right end of same. Fig. 3 represents an end elevation of the left endv of same. Fig. 4 represents an end elevation of the right end of same. Fig. 5 represents a vertical section'of the same on line 5 5 of Fig. 6 represents a similarivertical section with the apron in position to cooperate with the hide-working cylinders. Fig.

"7 represents an enlarged vertical section of w the hide-support .With the feed-rolls and fleshing. Fig. 11 represents an enlarged end eleing-cylinder in position to cooperate therewith. Fig. 8 represents a similar sectionof the hide-support with the feed-rolls and the unhairing-cylinder in positionto cooperate there-- with. Fig. 9 represents an end elevation of one of the feed-rolls. Fig. 10 represents asection of one end of a feed-roll and its, bear-' vation of the driving-gear-supporting meme her and thepivoted gear-supporting frame for operating thev hidesupporting apron, the driving gears beingshown indotted' lines and the pivoted frame being shown in position for the hide-support to cooperate with the knife-cylinder. Fig. 12 represents an end elevation of the apron-roll supporting frame 'showing its connections with the weighted lever fornormally limiting the movement of Specification of LettersPatent. Applicatioii'filed January 1'7, 1906. *Serial No. 241,477.

I abnormal tension.

Patented Dec. 5, 1905.

said frame andpermitting its yielding under frames, showing a knife-grinder in position upon its supporting-bar; and Fig. 14 represents an elevation of one end of the bar for supporting the knife-grinder.

7 Similar characters designate like parts throughout the several figures of the d rawings.

To support the working parts'of the machine, a mainframe is preferably provided made up of end frames'lO 10 and tie-gi'rths 11 ll. To the left-end frame is secured a bracket 12, supporting afrarne 13, from which projects a stud 14, secured" thereto. On the stud 14 ismounted, so as to be freely revoluble thereon, a sleeve 15,- provided at one end with pinion-teeth 16 and having secured to the opposite or outer end a double pulley l7 and 18. The pulleys 17 18 are of different diameters and are intended to cooperate at different times, by means of a belt 19, with pulwhen said hide-supporting apron 26, with a hide thereon, is moved into position by the operator to coact with said knife-cylinder.

Fig. 13 represents avertical section of the knife-cylinder-supporting The hide-supporting apron 26 is mounted upon two apron-rolls 27 28, the upper of which is provided with trunnions 29 at either end provided with bearings in the pivoted frame 30, pivoted at 31 to the outside of the side frame 10. The trunnion 29 at the left ofthe machine is provided with a gear 32, by which motion is imparted to said apronroll 27 in either direction, according to the position in which thehide-supporting apron Intermediate the end of the roll 26 may be. 27 and the side frames 10 each trunnion 29 is provided with an arm 33, the lower end of the trunnion'36 of the lower apron-roll 28. This block 35. may be'adjusted, by means of the screw 37,1t'o vary the. tension of the apron,

that at all times. Between each arm 33 and an end of the a-pron roll 2-7 is interposed the swinging members 39, carrying a slidable as desired,I-a spring 38, bearing against the Y 1 inner endof'said block 35 to keep the apron block 40forsupporting thebed-roll 41. The 1 block is provided with the usual springtension device 42. The member 39 is provided with a projection 43, provided with a clamping-bolt 44, which cooperates with a slot in a member 46, projecting toward the front of the machine from the swinging arm 33., By means of this device the bed-roll 41 may be swung into any desired position around the axis of the trunnion 29 and clamped by means of the bolt 44. To prevent the bolt 44 from slipping in the slot 45 under extraordinary strain, the member 46 is provided with an ear 47, into which is threaded a bolt 48, bearing against the upper end of the projection 43, thereby holding the bed-roll 41 rigidly in any position in which it may be adjusted and clamped.

The gear 32 for driving the upper apronroll 27 meshes with an intermediate gear 49, which in turn meshes with a gear 50, both of said gears 49 50 being loosely mounted upon studs 51 52, projecting from the pivoted frame 30. At 53 a link 54 is pivoted to said frame 30, the opposite end of said link being connected at 55 to a rocker-arm 56, secured to the rocker-shaft 57, said shaft being operated by means of atreadle 58 or in any other wellknown manner.

To the frame 13 on a stud 59 is loosely mounted a gear 60, which meshes with the gear 52 on the pivoted frame 30 when the hidesupporting apron is in inoperative position. The gear 60 is operated by means of a gear 61, which also operates a gear 62, causing it to move in the same direction as the gear 60. The gear 61 is mounted upon the'hub of a gear 63, which meshes with the gear 16 and is driven thereby. The gears 62 63 are mount ed, respectively, upon studs 64 65, projecting from the frame 13.

The shaft 22 of the unhairing-cylinder 24 has secured to its opposite end a driving-pulley 66, by which said knife-cylinder may be revolved at any desired speed. The motion imparted to the knife-cylinder is transmitted through the pulley 20, belt 19, and pulley 17 to the gearing mounted upon the studs projecting from the frame 13, so that when the unhairing--cylinder is in operation these gears are continually revolving. When the frame 30 is in the position shown in Fig. 3, with the hide-supporting apron 26 removed from the unhairing-cylinder, the gear 50 of said frame meshes with the gear 60 on the frame 13 and causes motion to be imparted to said apron 26 to move it in the direction indicated by the arrow on Fig. 5-5'. 6., in a direction to feed a hide into position to be operated upon. As soon as the hide has been fed in sufficiently far upon the apron 26 to be in position to be operated upon the operator places his foot upon the treadle 58, depressing the same, and thereby causing the rocker-arm 56 to straighten the toggle formed by it and the link 54. This operation causes the frame 30 to be moved about its pivot 31 and moves the hide-supporting apron 26 into the position shown in Fig. 8, at which time the gear 49 will mesh with the gear 62, and thereby cause the gear 32 to rotate in the opposite direction, thereby moving the apron 26 in a direction to feed the hide supported thereon outwardly to cause the hair to be removed from the hide in a well-known manner. When the gear 49 is in mesh with the gear 62, the gear 50 is out of mesh with the gear 60, as shown in Fig. 11. When the apron 26 has been moved by the depression of the treadle 58 into position to cooperate with one of the knife-cylinders, that portion of the apron which is supported by the apron-roll 27 with the hide thereon will cooperate with the feed- rolls 67 and 68, mounted in bearings in the boxes 69 70, slidably mounted in the frames 71 72, said frames being pivoted at 73 and adjustable about said pivot independently of each other and clamped in any desired adjusted position by means of the clamping-bolts 74, cooperating with the slot 75 in the end frame 10.

Each of the frames 71 72 is provided with a spring-tension device 76 of usual construction. The trunnions 77 of said feed-rolls are each provided with a gear 78, which is adapted to cooperate with a gear 79 on a trunnion 29 of the upper apron-roll 27 when the apron 26 is in position to cooperate with a knife-cylinder. When the gears 78 79 are in mesh, the feed-rolls 67 68 will cooperate with the apron 26, supported by the roll 27, to positively feed the hide outwardly against the tension of the knife- cylinder 24 or 25, acting thereon to remove the hair or flesh therefrom.

The pivoted frame 30 at either end of the machine is connected, by means of a link 80, to the shorter arm 81 of a bell-crank lever 82, pivoted at 83 t0 the side frame 10 of the machine. The longer arm of said lever 82 is provided with a weight 84, adjustable lengthwise thereof. The lever 81 82 is so constructed that when the pivoted frame 30 is moved to the rear to carry the apron 26 into position to cooperate with the knife-cylinders the longer arm 82, with the weight 84 thereon, will be carried beyond a line perpendicular to the axis of the pivot 83 and will be held in such position by means of the operator retaining his foot upon the treadle 58, he being assisted in this operation by means of the link 54, which at its pivotal connection 55 with the rocker-arm 56 is provided with rolls 85, which cooperate with the camplate 86, pivoted at 87 to the end frames 10. When the apron isin position to cooperate with the knife-cylinder, the link 54 will be in a nearly vertical position, with the rolls resting upon a nearly horizontal portion of said cam 86, so that all of the strain in supporting the various weights of the elements moved by the treadle is taken from the operator. As soon as the operator removes his -foot from 'thetreadle the weight 84 by gravity with the knife-cylinders 24 25.

22 23 of the knife-cylinders 24 25 are mounted will move into a position beneath the pivot 83, thereby moving the pivoted frame 30" about its pivot and causing the link orstrut 54 to be further inclined, and therebypermit the weight of said frames30, the apron-rolls,

and other members supported thereby to cause all of the various elements moved by' the treadle to be returned to their normal poj .sition', as shown in the drawings. 7 85 return totheir lower positionin the cam. -plate 86, they contact with a leather buffer 88 in the lower end thereof to prevent-unneces- As the rolls sary jar of thevarious elements;

movement of the frame 30 to'prevent injury to the hides or apron-by too severe a contact The shafts in bearings in side plates 93, pivoted at 94 to the inside of the main side plates 10 of the machine. The side plates 93 are each provided with a slot 95, concentric to the pivot '94, and cl amping-bolts 96, secured to the frame 10, cooperate with this slot to clampsaidplates in position for either knife-cylinders 2425 to cooperate with the apron 26. The outer'end of, the shaft 94 has secured thereto a twoarmed member 97 eacharm' of which is provided with an adjusting-screw 98, adapted to engage with a lug 99, projecting from the. side frame 10. The adjusting-screws 98 are adjusted so that when the side plates 93,- with --the knife-cylinders 24 25 therein, are moved about the pivot 94 eachiwill .be'stopped in its proper position to cooperate with the apron at a' predetermined poipt.

The unhairing-cylinder 24 is mounted in the plates 93 at a greater distance from the,

- pivot 94 than the fles'hihg-cylinder 25,and'

the adjustable stops Z98'are so arranged that when the unhairing cylinder is in position to cooperate with the hide it will be in alower position than the position assumed by the flesh:

ing-cylinder when it has been moved into position to'cooperate with the hide. The object ofthis is to so locate the fleshing-cylinder25 relative to the pivot'94 and the stops 98 99 that when moved into position to cooperatev more yielding surface than if it came intO'COIlI- tact'with the apron'at a point where it passed .overthe bed-roll 41. In the previous ma- The cam plate 86 is adjustable about its: pivot 87 bymeans of the slot 89 and clampingbolt 90. The frame 30 is provided 'with' a projection 91, which engages with a proje'c-' tion 92 upon the frame 10 tolimit the inward chines referred to this object was accomplished by withdrawing the bed roll from contact vious. 1 v

The shaft 23 ofthe knife-cylinder 25 is pro- "vided on its right-hand end'with a drivingpulley100, from which power, is transmitted from any suitablevcounter shaft to drive said with the rear of the apron, which made extra labor for the operator, and this is entirely obviated by the present invention,'as i's'obknife-cylinder. When the knife-cylinder 25 I is in operation, the belt 19 removed from the pulleys 20 and 17 and placed upon the pulleys 18 and 21, and motion is transmitted thereby from the pulley 21 to the pulley 18 to drive the apron-gearing, as heretofore described.

The side plates 93 are each provided with i inwardly-projecting lugs 101, towhich is secured the grinder-bar 102, provided with projecting guides 103, which coact with the grinder '105, as shown in Fig. 13, thereby permitting the knifegrinder to be reciprocated back and forth along the bar 102 for the purpose of sharpening the knives of the knife-cylinders when desired.- The bar 102' is secured to the lugs 101 ,by-bolts 106, and I said-bar may be transferred from one side of said lug to the other, the two faces of said lug being of such an inclination that when the bar 102. is secured to either face and the knife-grinder is placed thereon said grinder 'will be radial to either of the knife-cylinders with which it' may be cooperating.

H v The guides 103' of the grinder-bar 102. are cut away at 103* at either end thereof topermit' the removal of-the-grinder-105 when not to be used and the replacing thereof when it is desired to sharpen the knives of the cylinders 24 25. x

When the grinder 105 is not in use, abarrier 107 is inserted. between the shaft 94*ahd the grinder-bar 102, being supported thereon by means of hooked supports 108. This barrier 107 has no special use when the unhairing-knife cylinder 24 is in operation, but

when the fles'hing-cylinder is in operation, as] shown in Figs. 6 and 7, it is desirable thatthe flesh removed from the hide shouldnot clog up the unhairing-knife cylinder 24,'which at that time is almost immediately below the knife-cylinder25 and is in a position to receive the most of the refuse removed from the hides in :the operation of said cylinder. To prevent this, a metallic 'plate or hood 109 is hooked into the barrier -107,'sai'd plate being supported thereby and being curved, so that it willicover the upper portion of the unhairingcylinder 24 and prevent-the flesh and other waste removed from the hide from coming in contact therewith. This plate 109 is removed when the] unhairing-cylinder 24 is in operation. When the machine is in operation, it is convenient for the operator to have some support for his hands when not being used in manipulating the hides. For this purpose a rod 110 is provided supported by arms 111, pivoted to the studs 73;

In front of the apron-roll 28 and at a lower level supported on angle-irons 112 is a shelf 113, inclined downwardly to the rear. The

rear end of said shelf is provided with abackstop 11 1, and said shelf is provided with a drain-hole 115. The purpose of this shelf is to permit the hide being operated upon as it drops. from the hide-support 26 to fold itself upon this shelf in a position readily accessible to the operator when he desires to turn it and place the other half upon the apron to finish the operation. While the hide remains upon the shelf, any liquid which may remain thereon will drain through the openings 115. The provision of this shelf dispenses with considerable labor on the part of the operator and much unnecessary lifting.

At 116 an eyebolt 117 is pivoted to the lower end of the swinging arms 33. The

threaded end of the eyebolt117 passes through a member 118, on either side of which said eyebolt is provided with a nut 119. The member'118 is pivoted at 120 to a short arm 121 of a lever 122, pivoted at 123, the longer arm of said lever being provided with a weight 124, adjustable lengthwise of said longer arm. The longer arm of the .lever122 normally rests in a forked support 125, se-

cured to the rear tie-girth 11.

Under normal conditions the eyebolt 117 acts as a radius-arm, so that when the operators foot is placed upon the treadle and depressed for the purpose of moving the apron 26 into position to cooperate with the knifecylinders the eyebolt or radius-arm 117 will prevent the lower end of the arms 33 from moving toward the rear, thereby swinging said arms 33 about the trunnions 29 as said trunnions, with their apron-roll 27, are moved toward the rear of' the machine into the position shown in Figs. 6 and 7. In this position when the hide is being operated upon by means of a knife-cylinder the hide will hang downwardly from the point where it isin contact with said knife-cylinder, as shown in Fig. 7, and will not come in contact with the apron 26 until it reaches that point where the operation upon the hide by the knife-cylinder is performed. This inclination of the apron so that the hide'does not contact therewith during its operation until it reaches a point where the knife-cylinder coacts therewith is a very important feature of this invention, as by such a construction and arrangement of parts the hide is much more readily spread during the operation thereon of the knifecylinders than would be the case if it rested upon the apron previous to reaching the point of operation. Heretofore in machines of this class where an apron is used the hide is supported by the apron for some little distance before it reaches the knife-cylinder and usually hugs the apron so closely that the proper spreading of the hide is seriously interfered with, and as a consequence oftentimes the hide is injured by the knives of the knife-cylinders. These objections are entirely obviated by the present invention.

Should any extra thickness of the hide pass between the apron and the knife cylinder which would be liable to be injured by the knives of the knife-cylinder, the arms 33 will swing aboutthe trunnions 29, thereby forci ngwhich combine to form a cylinder having a non-metallic periphery. These iilling-pieces 128 are secured to the inner core by means of the screws or other fastening devices 129. The outer periphery of the feed-rolls is formed of woven fabric, felt, or other similar material 130, spirally wound thereon and secured to the filling-in pieces by means of fastening devices 131. Each end of the core 126 is provided with a socket 132, capable of receiving a cylindrical trunnion 77, which is secured therein by means of the set-screw 133. A feed-roll of this construction is very eflieient in its operation, and when worn or damaged the filling-in pieces 128 and the outer periphery130 may be readily replaced at slight expense.

By means of the socket 132 and the trunnion 77, secured therein by means of the setscrew 133, the feed-rolls may be readily removed fromthe machine by moving the trunnions 77 outwardly through their hearings in the direction of the arrow in Fig. 10 suflieiently far so that the inner end of the trunnion will clear the outer end of the core 126.

It is believed that the operation of this invention will be thoroughly understood bythe foregoing description.

Having thus described my invention, 1 claim 1. The combination with a pair of separated rolls, of an apron mounted upon said rolls, a pivoted frame, a pairof independently driven knife-cylinders mounted in said frame at different distances from said pivot, and means whereby said frame may be moved about its pivot to bring either of said knife-cylinders into position to cooperate with said apron at different points thereon intermediate said rolls.

2. The combination with a pair of separated rolls, of an apron mounted upon said rolls, a

bed-roll located between said rolls beneath said, apron, a pivoted frame, a pair of independently-driven knife-cylinders at different 'distances from the pivot of said frame, and

means whereby one of said cylinders maybe moved into position to cooperate with said bed-roll or the other may be moved into position to cooperate with said apron at apoint' intermediate said bed-roll and an apron-roll. 3. The combination with a knife-cylinder,

of a pivoted frame, a pair of apron-rolls both having bearings in said frame at some distance from the pivot thereof, an apron mounted on said rolls, a bed-roll also carried by said frame,

and means for moving said frame to cause said apron to cooperate with said knife-cyl nder at a'pointintermediate the bed-roll and an apron-roll. i

1; The combination with a knife-cylinder,-

of a frame pivoted to the framework of the machine, a hide-support pivoted to the free end 'of saidpivoted frame, means for moving said pivoted frame into position for the hidesupport to cooperate with said knife-cylinder,

a weighted lever, and a link interposed between said lever and said hide-support.

5. The combination with a knife-cylinder,

of a frame pivoted to the framework of the machine, a hide-support pivoted to the free end of said pivoted frame, means for moving said pivoted frame into position for the hidesupport to cooperate with said knife-cylinder,

aweighted lever, a link interposed between said lever and said hide-support,'and means for adjusting said link.

6. The combination with a knife-cylinder,

of a pivoted rocker-frame, arms pivoted to'said rocker-frame, a hide-support mounted on saidarms, means for movlng said frames about their pivots to cause said hide-support to 'cooperate with said knife-cylinder, and means including a weighted lever for limiting the movement of said arms about its pivot.

7. The combination with a.knife-cylinder, of a pivotedrocker-frame, a hide-support pivoted to said rocker-frame, means for moving said rocker-frame about its pivot, a weighted lever, and a link connecting-said lever and hide-support.

8. The combination with aknife-cylinder, of a hide-supporting apron, and means for moving said apron into an inclined position engagingsaid knife-cylinder with the upper portion of. said hide-support farthest to the after being operated upon.

rier connecting said plates in the rear of one of said cylinders, and a hood secured thereto I for the other cylinder.

11. The combination of two side plates, two

knife-cylinders mounted in said plates, abar- 'rier connecting said plates in the rear of one of said cylinders, and a detachable hood secured thereto for the other cylinder.

12. The combination of two side plates, twoknife-cylinders mounted in said plates, abarrier connecting said platesin the rear of one of said cylinders, hooks on said barrler, and

' a hood for the other cylinder secured thereto.

13. The combination of a knife-cylinder, a revoluble hide-support, adriving-gear therefor, gearing meshing therewith when said hide-support is removed from said cylinder to drive said support in one direction, and gearing meshing with said driving-gear to move the hide-support in the opposite direction when. said support is cooperating with said knife-cylinder.

14:. The combination of a knife-cylinder, a revoluble hide-support, a pivoted supportlngframe therefor, a driving-gear for said hidesupport, two pinions'on said frame for driving said gear, two driving-gear s-=mov1ng 1n the same direction mounted on a bracket, and means for moving said frame about its pivot to cause one of said frame-pinions to be moved out of mesh. with one of said bracket-gears and into engagement with the other.

7 15. The combination of a knife-cylinder, a hide-supporting apron, means for moving said lapron toward the front of the machine when the hide is being operated upon, and a shelf between the front of the machine and said apron adapted to receive and hold thehldes 16. The combination of a knife-cylinder, a hide-supporting apron, means for moving said the hide is'being operated upon, a shelf in front of said apron adapted to receive the hides after being operated upon, and means for draining said shelf.

17 The combination of a knife-cylinder, a

"hide-supporting apron. means for moving said apron toward the front of the machine when the hide is being operated upon, ashelf 1n apron toward the front of the machine when front'of said apron adapted 'to receive the hides after being operated upon, means for draining said shelf, a'weighted lever, a nut pivoted to the free end thereof, abide-support, and a threaded shank cooperating with said nut and pivoted to said hide-support.

18. The combination with a knife-cylinder, of a feed-roll above saidcylinder, an apron downwardly and backwardly inclined toward said knife-cylinder, and means whereby said apron may be brought into position to cooperate with said knife-cylinder and feed-roll with said apron downwardly and forwardly inclinedfrom said knife-cylinder.

19. The combination with a knife-cylinder,

of a pair of levers, pivots therefor, a hidesupport pivoted to the free ends of said levers, a bed-roll, and supports for said bed-roll hung on said pivots.

20. The combination with a knife-cylinder, of a pair of levers, pivots therefor, a hidesupport pivoted to the free ends of said levers, a bed-roll, supports for said bed-roll hung on said pivots, and means for adjusting the position of said supports about said pivots.

21. The combination witha knife-cylinder, of a pair of levers, pivots therefor, an apronroll pivoted to the free end thereof, arms hung on'said pivots, an apron-roll in bearings in the free end of said arms, and an apron on said ro ls.

22. The combination with a knife-cylinder, of a pair of levers, pivots therefor, an apronroll pivoted to the free end thereof, arms hung on said pivots, an apron-roll in bearings in the free end of said arms, an apron on said rolls, and means for regulating the movement of said arms about said pivots.

23. The combination with a knife-cylinder, of a pair of levers, pivots therefor, an apronroll pivoted to the free end thereof, arms hung on said pivots, a second apron-roll supported thereby, an apron on said rolls, a bed-roll beneath said apron, and supports therefor hung on said pivots.

24. The combination with a knife-cylinder, of a pair of levers, pivots therefor, an apron roll pivoted to the free end thereof, arms hung on said pivots, a second apron-roll supported thereby, an apron on said rolls, a bed-roll beneath said apron, supports therefor hung on said pivots, and means for adjusting said supports relative to said arms.

25. The combination with a knife-cylinder,

of a pivoted frame, a hide-support pivoted to the free end thereof,-means for moving said frame to cause said support to cooperate with said cylinder, and means for reversing the inclination of said support during said movement.

26. The combination with a knife-cylinder, of a pivoted frame, a hide-support pivoted to the free end thereof, means for moving said frame to cause said support to cooperate with said cylinder, means for reversing the inclination of said support during said movement, and means secured to said hide-support providing for a yielding movement about its pivots under abnormal strain.

27. The combination with a knife-cylinder, of a pivoted frame, a hide-support pivoted to the free end thereof, means for moving said frame to cause said support to cooperate with said cylinder, means for reversing the inclination of said support during said movement, and means including a weight secured to said hide-support providing for a yielding movement about its pivots under abnormal strain.

28. The combination with a knife-cylinder, of a feed-roll located above said cylinder, a pair of apron-rolls, a hide-supporting apron upon said rolls, and means for moving said apron into engagement with said cylinder and feedroll with that portion of the apron extending from the cylinder to the lower apron-roll inclined therefrom.

Signed by me at Boston, Massachusetts, this 9th day of January, 1905.

ALBERT A. HUTCHINSON.

Witnesses:

WALTER E. LOMBARD, EDNA (J. CLEVELAND.

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