US1303840A

US1303840A - o donn-ell

Info

Publication number: US1303840A
Authority: US
Publication date: 1919-05-13
Anticipated expiration: 1936-05-13

Description

' J. W. ODONNELL. LEATHER wommm mama, APPLICATION FILED APR. 5. I91].

Quins-snarl,

Patented M m, 1919.-

#LEATHER WORKING MACHINE:

I i APPMATIO N FILED APR. 5. 1947-,

- 1,3Q3 840, Patented May-16, 1919.

4 SHEETS SHEET 4.

following J'QHN W. ODON'NELL, OF SALEM, MASSACHUSETTS, ASSIGNOR, .BY MESNE ASSIGNMENTS,

TO THE CARLETON RUHE COMPANY.

LEATHER-WORKING- MACHINE.

T 0. all whom it may concern:

Be it known that I, J OHN \V. ODONNELL,' a subject of King George V of England, residing at Salem, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Leather-Working Machines, of which the following is a specification.-

This invention relates to improvements in leather working machines and has for its object to provide a machine. adapted to so thoroughly perform the, process of unhairing hides, skins or the like that the operation known as the fine hairing will be prac-, tieally eliminated, both operations being accomplished substantially in one and without injury to the hide.

Another object of the invention is to provide a machine which is capable, by very slight adjustment, of accomplishin the fleshing of hides, skins or the like without in the least cutting or damaging the skins.

Still another object of the invention is to provide a machine adapted, in addition to the above, to accomplish the operation known as the putting out of hides or skins, that is to say, stretching or working out the wrinkles or irregularities from the same.

The invention consists in the combination and arrangement of parts set forth in the specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 is a front elevation of a machine embodying my invention, portions of said machine being broken away to save space in the drawings.

Fig. 2 is a, right hand side elevation of the same.

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 1. In this figure one of the feed rolls and the bed roll are shown in their forward positions in readiness to receive work. a

Fig. 4 is a detail sectional view, illustrating the work members, feed rolls and bed roll of the machine in their operating positions, a piece of work being shown between said rolls.

5 is adetail sectional view, similar to Fig. 4, showing a rearrangement of the Specification of Letters Patent.

\ skins or Patented May 13, 1919.

Application filed April 5, 1917. ScrialNo. 160,032.

working parts of the machine, so as to em able it to perform a fleshing operation on a skin or.hide.

F ig. 6 is a' front elevation of a portion of one of the Work members, showing the difference between the pitch of the helical blades on said member and those of the corresponding work member, shown in Fig. 4.

Fig. 7 is a detail sectional view, similar to Figs. 4 and 5, illustrating" the working parts of the machine, adjusted or rean ranged to accomplish the putting out of the skins or hides.

Fig. 8 is a detail sectional view taken on the line 8-8 of Fig. '2.

Fig. 9 is a section taken on the line 9-9 of F ig'. 3. Fig. 10 is'a perspective view of the slicker blade and its supporting member. Like numerals refer to like parts through out the several views of the drawings.

In the (.lrawings, 1 represents a base plate of a design suitable to support a pair of side frames 2 and 3, adapted to supportthe working parts of the machine. When the machine is employed in the unhairing of hides the arrangement of the working parts will be as shown in Figs. 1 to 4 inclusive. In this adaptation two work menr bers 4 and 5 are shown. The work member 4 is rotatably mounted upon the side frames 2 and 3 in suitable hearings on said frames and the shaft 6 of said member also constitutes the main driving shaftby which the other working parts are driven.

A driving pulley 7 is attached. to the shaft 6 and receives its powerfrom any suitable source. The body of the work member 4 is cylindrical and is provided with a plurality of peripheral helical blades 8 which extend from a point, midway of the work member toward the ends in left and right helices in accordance with the construction generally followed in devices of this character. The pitch of each of the helical blades 8-that is, referring to the distance between successive helices measured along a line parallel with the axis of the helixis preferably 4:2".

'lhe work member 5' is also cylindrical in construction and provided with a plurality of peripheral helical blades Q'SimiIar-to the blades 8 of the member 4, with the exception that the pitch of the blades 9 is preferably substantially 74". The work menrbers l and 5 are preferably rotated in the same direction, that is, in the direction indicated by the arrows (Y and 7), the member 5) receiving its powe nfrom the member -lpreferably by means of 'a train of gears, including a gear 10 fast to the shaft (3 which engages a gear 11 attached to one end of an intermediate shaft 12, journaled to rotate in the side frames and at the rear of the work members 4 and j A gearl l is secured to the opposite end of the intermediate shaft 12 and meshes directly with a gear 11- attached to one end of the shaf't of the work member 11 bed roll 15 provided with a yielding periphery 16 preferably formed of rubber, is arranged to eoi'iperate with the work members 4 and 5; that is to say, the bed roll is mounted upon. a rock r frame 17, consisting of two

arms

18 and 19 which are pivotally mounted upon a shaft 20 supported by the side frames 2 and 3, above the work members at. and 5. lfhe arrangement of the bed roll 15 upon the rocker frame 17 is such that when said frame is rocked said roll will be moved into a position between the men'ibers 1 and 5 so as to engage said members with equal pressure when moved thereagainst. v

The bed roll 15 coi'istitutes a support for the work while being acted upon by the work members 4 and 5, and means are provided to feed the work over said bed roll in opposition to said work members said feeding mains n'efciably including a pair of feed rolls 21 and 22. The feed roll 21 is jour- -naled to rotate in swivel bearings 17), see

Fig. 8, formed in rocker arms 23, mounted adjacent to the inner face of each of the side frames 2 and 3, upon a shaft 24-, said shaft being journaled to rock in bearings formed in the side frames 2 and 3 The rocker arms 23 are each provided with a lu 25 which normally engages an adjusting screw 26 mounted in each of the side frames 2 and 3.

The lug 2a is furthermore yicldingly maintained against the adjusting screw 2(3 by means preferably including a spring 27, one end of which seats against a collar 28 which abuts against a sleeve 25). said sleeve. in turn abutting against a stud 30. attached to the rocker arm 23. 'lhc opposite end of the spring 27 seats against: a collar 2-31 secured to the end of a rod 32 passing through the center of the spring 27. Said rod also passes through the sleeve 2%) and stud 30in *ard the front of the machine. The forward end of the rod 32 is screw threaded and engages an adjusting member 33. The adjusting memher 33 engages a dog EH attached to the lower end of an arm 35 depending from the shaft 20. 7

An abutment 36 on the side frame is adapted to sustain the thrust. upon the dog 34:, due to the pressure of the spring 27 on the rod 32.

A rotary motion is imparted to. the feed roll 21 in the direction of the arrow 0 from the shaft 12 through a train of gears consisting of a gear .37 fast to the shaft 12 which meshes with a gear 38 rotatably mounted upon the shaft 21.

Secured to the gear 38 is another gear 39 which rotates therewith and meshes with a gear 40 attached to the shaft of the feed roll 21. The feed roll 22 is journaled to rotate in bearings -11, 11 carried by the

arms

18 and 19 and this roll has motion imparted to it through a pair of gears and 43 secured respectively to the rolls 22 and 91. The teeth of said gears are pointed to permit the same to mesh readily during the movements of the rocker frame 17 toward the feed roll 21. The rolls 21 and are each provided with longitudinal corrugations 4 1 which assist in feeding the work in opposition to the pressi'ire applied thereto by the work members at and which are rotated in an opposite direction to said feed rolls.

In addition to the longitudinal corrugations at the feed roll is also provided with a series of circumferential corrugations 15 which assist in preventing a movement of the work longitudinally of the feed roll.

The bed roll 15 is preferably adj ustably and yielding] y mounted upon the rocker frame 17 so as to permit the same to be adjusted to contact with equal pressure against the membersl and 5 and to slightly yield to accommodate any variation in thickness of hides or skins that are to be treated by the machine.

For this purpose the bed roll 15 is journ'aled to rotate in swivel bearings 15 similar to those illustrated in Fig. 8. The bearings 15 are mounted in bearing members to, 46 pivotally attached at 47 to pivotal members is pivoted at 49 to the lower ends of the arms le and 1S). l pon opposite sides of the pivot 17 of each of the members 10 are adjusting screws 50. 50 which engage the bearing members l6 and by suitable manipulation are adapted to rock the bearing members it? about the axes of their pivots -l7. 'lhe pivotal members "ii are provided with lugs 51 hearing adjusting screws 52 adapted to engage portions of the arms to and 1t) and thereby prevent the movement of the roll 15 relatively to the arms 18 and it) in the direction of the members 4- and 5 when the rocker frame 17 is stationary.

Each of the pivotal members 48 has an arm 53 which has attached thereto a rod 54. Encircling the rod 54 is a spring 55 which abuts at one end against a collar 56 which in turn, engages arms 57 projecting forwardly from the

arms

18 and 19. The opposite end of the spring 55 abuts against an adjusting member 58 which has screw cranks 59 are connected to the arms 18 and threaded engagement with the end of the rod 54, whereby the tension of the spring 55 may be adjusted. By means of the spring 55 and its cooperating parts a yielding pressure will be app-lied to-inalntain the ad uSting screw 52 against the cooperating portion of the arm of the rocker frame adacent thereto and incidentally permit the bed r011 15 to described.

The rocker frame 17 is adapted to be oscillated after'the work has been placed overthe bed roll 15 and the feed roll 22, preferably by means of cranks 59 attached to opposite ends of a shaft 60 journaled to rotate in the side frames 2 and 3. The

19 by connecting rods 61. Motion is imparted to the shaft 60 preferably from the driving shaft 6. This motion is slow and adapted to be controlled by the operator.

The preferred method of operating said shaft consists of a worm gear 62 fast to the shaft 60 and engaging a worm 63 secured to a shaft 64 journaled to rotate in bearings 65. The shaft 64 is operated through miter gears 66 and 67 from a shaft 68 which,"

in turn, receives its motion through a train of gears,,including a spur gear 69 rotatably mounted upon the shaft 68 and adapted to be connected therewith. by means of a clutch of any of the well known types, one form of which is shown at 70. The gear 69 meshes with an intermediate gear 69 and a gear 71, rotatable with the gear 69, in turn engages a gear 72 fast to the driving shaft 6.

The operation of the m anhine'herinbefore specifically described is as follows:

A hide or skin is laid over the feed roll 22 preferably with one-half or a little more than onehalf of said hide projecting downwardly from the side of said roll toward the feed roll 21, the flesh side of said hidebeing against the feed roll 22. .The work members 4 and 5 and the feed roll 21 are at this time being rotated from the shaft 6. The operator next operates the clutch to connect the shaft 68 with the gear 69, thereby imparting a rotarymovement to the worm gear 62 to advance thefeed roll 22 to the feed roll 21, while the bed roll 15 moves 7 with the hide to press said hide against the work members 4 and 5.

Immediately upon the .engagen'ient of the teeth of the gear 42 with those of the gear 43 the work, which. previously simply laid a over the roll 22, will be moved in the direction of the arrow 0 by the feed rolls in opposition to the action of the work members 4 and 5. The pressure of the bed'roll 15 against the blades of the members 4' and 5 causes said blades to scrape the hair from the side bf the hide. This operation is greatly facilitated by the lower work memyield slightly, as hereinbefore The arrangement of the helical blades upon the members also tends to stretch the I hide longitudinally of the rolls as well as in the other direction. After the portion of the hide, which was below the feed roll 22 when the operation started, has been treated by H rocker frame 17 is position by again which was thrown the work members, the returned to its former throwing in the clutch out when said frame arrived at its innermost position. This moves the

rolls

22 and 15 back to their former positions and the hide or work thereon is turned end for end go as to leave the untreated portion thereof suspended from the roll 22 and directed toward the work members. The operation is then repeated.

The bed roll 15 is not disposed directly beneath the feed roll 22 when the rocker frame is forward, as shown in F ig. 3, but is farther toward than said-roll 22 in order to permit the skin, which has been placed upon said feed roll 22 in readiness to be advanced to the work members, to hang freely bed roll. Should said skin be permitted to touch said bed roll when being laid over the feed roll prior to its being fed to the work members a Wrinkle or slackness is likely to be formed and if this is not removed before the work members contact therewith the skin will be cut or torn by the sudden tightening thereof. This, arrangement is made possible by mounting the bed roll and feed roll 22 .upon the rocker frame which is pivoted to rock about an axis disposed above the work members, thus causing the bed roll to move through a longer path than that traversed by the feed roll 22 Another advantage resulting from this arrangement is that less power will be required to move the feed rolls into operative relation with their cooperating members, the weight of said frame and roll mounted thereon being nearly sufficient to produce all of the pressure required.

In Fig. 5 is shown in detail the arrange ment of the working parts as used in the fleshing operation. During this operation the face of the hide, rather than the back' 22; thus the roll with the longitudinal e01- member 1;)

73 is provided which differs from the work member 5 only in the pitch of the blades 'T-lthereof which are preferably of substan-' tially 10 pitch, whereas those of the member 5 were of 7-1: pitch. The lower work member 75 of this form is identical with that illustrated in Fig. 6 and operates at a suitable speed. whereas the men'iber T3 is arranged to operate much faster than the member 75.

The blades 'T-t of the member 73. rotating in the direction of the arrow shown in said figure remove all of the flesh from the hides, this being' assisted by the member 75 which rotates in the same direction and helps to maintain the hide taut during the feeding thereof and during the removing of the flesh by said member 7 In Fig. 7 I have shown another arrang'ement of the working parts of the machine,

especially adapted to the putting out ofskins and hides, that is to say, to the spreading and stretchingof the hides in both directions in order to remove wrinkles, natural, grain and water from the hide. In carrying out' this feature of the invention, instead of using the corrugated feed rolls shown in the figures previously descrihech felt rolls 76 and 77 are inserted instead of the rolls 21- and 22.

The work members 78 and 7.) are the same as the work members of the unhairing: machine, that is, the member TS has helical blades 80 of substantially Tat pitch and the member 7!) has helical blades 81 of substantially 12 pitch. The members To and 79 are rotated in the direction of the arrows and in opposition to the feeding movement of the skin by the rolls'Tt' and 77. which movement is in the direction of th arrow g.

In place of the bed roll 15 which has a rubber surface a member 3-3 is ei'i'iployed said member being mounted in place of the and preferably consisting of a bed 83 of substantially t\\'othirds of a circle directed toward the members T8 and it). (in this bed is placed a strip of resilient materiah preferably felt Hi, and over this is laid a strip of leather 83 said felt and l.2ltl1(l constitutin; a bolster which is adapted to support the hide shown at so in a position to be operated on by the mcmbers TS and 7!).

Attached to th bed s1) is a slicker blade 8? provided with a slightly rounded nose. 88 which is directed between the members TS and TH and works upon one side of he. kin or hide while the work members 7s and 79 are workingupon the other face thereof. The work member 79, mutating faster than the work member 78 and in the direction of the arrow f. causes the work to be drawn taut over the slicker blade 87 while the pull.

of the feed rolls 7G and 77 feeds the work bet ween the work members and slicker blade.

\Vith this arrangement. the skin or hide, after being treated on one side by the work member 7), is then worked upon its opposite side by the slicker blade 87, and this work is intensified because of the position of the slicker blade 87 being not only between the work members 78 and Tit but because of the fact that it is placed far enough between said

work members

78 and 79, bringing the working point of said slicker blade considerably beyond a plane tangent to the working surfaces of said work members,

This results in breakingthe hide over the point of the slicker blade at an acute angle, thereby greatly increasing the strain and stretch upon the hide and resulting in the drawing; out of wrinkles and the workings, ot' fibers in a superior manner. The hide, after passing from the slicker blade 87, is then subjected to the action of the work member 78 whichengages the opposite side of the work from that engaged by said slicker blade.

By combining the slicker blade with the two work members, the operat ion, ('UllllllOlll, known as staking, which is the softeniimand stretching of tanned leather and which is now accomplished on machines coi'istructed solely for that purpose, may be acconr plished simultaneously with the regular functions of this machine thereby resultin in a great. savingof time and of labor.

lln performiiu the respective operations of unhairin e. flushing and setting out of hides and skins the two work members are preferably adjusted so that the lower work member will revolve, at suitable rates of speed in each of the several operations and the upper work member will also revolve. at. suitable ratio of speed to the lower work member in each of the scveral operations.

Having thus specifically dcscribial my in vention what. l claim and desire by Letters Patent to secure is:

1. A machine of the character described having. in combination. a work member. a work supporting member. a pair of work feeding rolls acting independently of said work supporting member a pivoted frame adapted to support said work supporting; member and one of said feed rolls. the axis of said frame being disposed aborc said work member, said work supporting mem her being); adapted by reason of the position of said axis abore said work supporting; member to more downwardly toward said work member whereby the weight of said frame and said work member will v sit the movement of said work supporting member into engagement with said work member and means for operating said pivotal frame i to move the member carried thereby toward and from said work member.

2. A' machine of the character described havang, :incombinatiomf a stationary frame, a' pair of Work member's rotatably mounted in said, frame, each of said work members having peripheral helical blades, a feed roll yieldingly mounted upon'said frame, means for rotating said feed roll, a rocker frame pivotally mounted upon said frame to rock about an axis disposed above said work members, a second feed roll upon said rocker frame in cooperating relation with the feed I roll of said frame, a work supporting memher also mounted upon said rocker frame vin cooperating relation with said pair of work members, and means adapted "to operate said rocker frame to move the memberg thereon toward or away from the rolls in said frame;

3. A machine of the character described having, in combination, a stationary frame,

- a feed roll rotatably mounted onsaid frame,

a pair of work members rotatably mounted on said frame, means for rotating said mem-v bers, a. rocker frame arranged to rock about .an axis disposed above said feed roll, a sechaving, in combination, a pair of cooperating feed rolls, a worksupporting member, a" work member constructed and arranged to engage the work upon the opposite side thereof from said work supporting member, means for operating said work member in opposition to said feed rolls, and means for engaging the work behind, adjacent to and uponthe same side thereof with said work member, adapted to maintain the work under tension while passing between said work member and said work supporting member.

5. A machine of the character described having, in combination, a work supporting member, means for feeding the work over said work supporting member, a work member'provided with. peripheral helical blades adapted to engage the work upon the opposite face thereof from said work'supporting member, said blades being of substantially 74K pitch, a second work member also provided with peripheral helical blades adapted to-engage the work upon the opposite face thereof from said work supporting member,

the helices of said second work member being of substantially 4% pitch, and means for rotating said work members in opposition to said feedingmeans.

6. A machine of the character described having, in combination, a work supporting member provided with a yielding periphery, means for feeding the work over said work supporting member, a work member provided with peripheral helical blades adapted to engage the work upon the opposite face thereof from said work supporting member,

,saidblades being of substantially 74 pitch,

a second work member also provided with peripheral helical blades adapted to engage the work upon the opposite face thereof from said work supporting member, the helices of said second workmember being of substantially 42 pitch, and means for rotating said work members at different speeds and in opposition to said feeding means.

7. A machine of the character described having, in combination, a pair of work members, each provided with peripheral helical blades, the blades of one of said members being of substantially steeper pitch than the other, a work-supporting member having a resilient periphery adapted to support the work between and against the blades of both of saidwork members, means for rotating both of said work members, the surface speed of the member of steeper pitch being less than that of the other, and means independent of said work'supporting mom her for feeding thework between said work members and said work supporting member in opposition to the movements of 'said work members.

8. A machine of the character described having, in combination, a stationary frame, rotatable work members mounted upon said stationary frame,'said work members having peripheral helical blades, means for rotating said work members, a feed roll mounted to rotate on said frame, means for rotating .said feed roll, a rocker frame pivoted to rock about an axis disposed above said feed roll, a second feed roll rotatably mounted upon said rocker frame adapted to cooperate with and be rotated from said first named feed roll, one of said feed rolls being yieldably disposed relatively to the other, a work supporting member yieldingly mounted upon said rocker frame adapted to be moved into operating relation with said work members, and means for operating said rocker frame, to move, said second named feed rolland said work supporting member respectively toward and away from said first mentioned feed roll and said work members.

' 9. A machine of the character described having, incombination, a palr of work members, a rocker frame mounted'to rock about' an axis disposed above said work said work members being members, a pair of bearing members pivotally mounted at opposite sides of said rocker frame, a. work supporting member mounted on said bearing members, means for exerting a yielding pressure upon said work supporting member, means for rocking said rocker frame to move said work supporting member between said work members, whereby the work will be pressed thereby against both of said. work members, means for feeding the work between said work supporting member and said work members, and means for operating said work members in a direction opposite to that of said work.

10. A machine of the character described having, in combination, a pair of work members, each provided with a plurality of peripheral helical blades, the blades of one of of substantially L2 pitch and the blades of the other of said members being of substantially 74 pitch, means for iotating said work members in the same direction, means for supporting and forcing the work between and against the helices of said work members, and-means for feeding the work in a direction opposite to the movements of said work members.

11. A machine of the character described having, in combination, a pair of work mein bers, a feed roll arranged above said worr members, a second teed roll constructed and arranged to cooperate with the first named feed roll to feed the work, a work supporting n'iel'l'lbcr constructed and arranged to :0- operate with said work members to operate upon the work. and means for moving said second ttccd roll and said work supporting member toward and from the first named feed roll and said work members, said movablc teed rollbeing arranged to the rear of said work supporting); member when in its forward position, whereby-the work supported by said teed roll may be freely suspended therefrom.

12. A machine of the character described having. in combinatirm, working cylinders, a supporting member consisting of one or more tacos adapted to hold the work in coir tact with said working cylinders, a slicker blade projecting from the face of said supporting member, adaptcd to support the work in contact with said working cylinders, incans for moving said supporting member toward and from said working cylinders, and a pair of cooperating 'tccd rolls working iiulcpcndcntly oi said working cylinder tor drawing the work between said support.- ing mcmbcr and said working cylinders.

i). A machine of the character described having in combination. a \\'orl\'-supporting member, means for t'ceding the work over said worlosupporling member. a work-nicm-- ber provided with peripheral helical blades adapted to engage the work upon the opposite lace thereof from said work supporting member, a second work member also provided with peri )heral helical blades adapted to engage the work upon the opposite face thereof from said work-supporting member, the helices of said second work member being of a different pitch, from the helices of the first work member, and means for rota ting said work members in opposition to said feeding means.

14. A machine of the (Jllt *acter described having, in combination, a work-supporting member, provided with. a yielding periphery, means for feeding the work over said worksnpporting member, a work member provided with peripheral helical blades adapted to engage the work upon the opposite taco thereot from said work-snpporting member, said blades being of a certain pitch, a second work member also provided with peripheral helical blades adapted to engage the work upon the opposite face' thereof from said work-supporting men'iber, the helices of said second work member being of a. certain. ditterent pitch, and means for rotating said work members at different speeds and inv 0pposition to said feeding means.

15. In a machine of the character described and in combination, a. work-supporting member, means for feeding the work over said work-supporting member, a pair of simultaneously cooperating work members, each. adapted to engage the work upon the opposite face from the work-enpporting member, each of said work members being provided with a plurality of peripheral helical blades, the pitch of said helical blades being different in each work member, and means for operating said work members in opposition to said, means tor feeding; the work and atditierei'it rates or speed for each work member. I

16. In a machine of the character described and in combination a work-surmorting member of yielding periphery, means tor "feeding the work over said work-supporting member, a work member provided with a pln ality of peripheral helical blades of certain pitch adapted to engagethe work upon the opposite face from said work-sup portingmember, cooperating sinuiltaneously with a second work member provided with a plurality of peripheral helical blades of dit- 't'ercnt pitch adapted to engage the work upon the opposite tare from the work-supporting member and means tor operating said work members in opposition to said means for t'ecding the work and at ditterentrates of speed "for each work member.

17. In a machine of the character de-' with spiral blades of different pitch, said knit'e cylinders rotating in the same direc tion and in opposition to said feeding means.

18. In a nrachine of the character de scribed, the eon'lbination with a work-supporting member of means for feeding the work over the same and two knife cylinders rotating at different speeds and cooperating simultaneously with said work-supporting member, said knife cylinders being provided with spiral blades of different pitch, the surface speed of the cylinder of steeper pitch being less than that of the other.

19. In a machine of "the character described the combination with a Work-supporting member having a yielding periphery of means for feeding the work over the same,

and two knife cylinders rotating at different speeds and cooperating snnultaneously wlth said work-supporting member, said knife cylinders being provided with spiral blades of different pitch, the surface speed of one of the knife cylinders being less than that of the other so as to allow for the Variation in the pitch of the blades of the two cylinders.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN W. ODONN ELL. Witnesses Fnnn A. Non'roN, EDNA L. TUTTLE.