US1369286A - Zigzag hide-cutting machine - Google Patents

Description

W. KWASH.

ZIGZAG HIDE CUTTING MACHINE- APPLlCATlON FILED JUNE 10' 1920;

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W. KWASH.

ZIGZAG HIDE CUTTING MACHINE.

APPLlC AT ON FILED JUNE 10, 1920- Patented Feb.22 ,1921.

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To all whomit may concern:

Be it. known that LWnnzrl KwAsH, a citizen of Bohemia, and a resident of Des Moines, in the county of Polkand State of Iowa, United Statesof America,v have invented a certain new and useful Zigzag Hide-Cutting Machine, of, which the follow- ,ing is aspecification. 4

The object of my invention is to provlde a machine'for cutting hideswhich havethe hair thereon, on zig zag lines-without cutting the hair. V 1; 1

More particularly it is my object to provide such a machine including coacting cut- Y other when the upper shaft is in its lowere'dting members adapted to cut-hides on zig zag lines, and to provide-means for mounting said members whereby they may be supported in a variety ofdifferent positions, which Ineansis adapted to support one'or more sets of said cutting members, and adapted to be adjusted for the ready and easy removal or interchange of the cutting members.

With these and other objects in view, my

invention consists in the construction, ar-

' rangement and combination of the various parts of the devicerwhereby the objects con templated are attained, as hereinafter more fully set forth, pointed out in my claims," and: illustrated in'the accompanying drawings, in which:

, Figure 1. showsa front elevation of a zig zag hide cutting machlne embodymgi'mymvention. V I 1 Fig. 2 shows a vertical sectional view taken on the line 22 of Fig. 1. i

- Fi 3 shows a detail sectional view .taken' on th e line 3-3 of Fig. 1. 3

V Fig. 4: shows a front elevation of one of the cutting knives or die, members. 1.

Fig. -5 shows-an. end elevation of the ma chine. A 11 Fig. 6. shows a plan'view-of the machine.

Fig. 7 shows adetail sectional view taken 'on the line 7-7 of Fig. 1 {and Fig.- 8 shows a frontelevation ofthe coacting cutting members or dies, the upper cutting member being of slightly different form from that shown in Fig. 41.

In the drawings herewith; which -illus trate' a'form' in which my invention may be embodied, I have used the reference nu meral 10 to-indicatea base ,'in which is mounted thelower end of a hollow upright 11. A portion of the upright 11 is cut away,

Specification of was Patent.

I Application firearm -10,1920. Serial no, 288,000. g

j as at. 12 (Fig. 1) leaving a recess, and in ,such recess 1s mounted a'motor 13. Above I the recess 12 are opposite: recesses 15 and.;16 .1

in the upright 11.

spindles 17 and 18. The endsof the spindles ratenteurep; 2 2',

Extending through the walls of: the 'upr1ght 11, opposite the recesses 15 and 16, are

horizontal position, as illustrated, for in] stance, in Fig. 1. Thejshaft;22 projects 'be- .yond the pinion2 1, and has thereon a sprocket 26 in line Wlth'fi, sprocketz27 on the motor shaft. On the sprockets 26 and shaft 22.

, Pivoted in the lower'wportioniof the mem- 7 her 11 is a brace 29, which extends upwardly and laterally to the right, as shown in Fig;

1. The brace 29 extends-to a point to the left of the pivot 30 of said brace, and is connected ,with an expansion spring; 81

which tends tov hold the brace in its raised position, but topermit the brace to, belowi ered against the pressure'of the-spring.

The upper bearing memberB is fastened in position by means of a cotter pin 35,

i 27 is a chain 28, by means ofwhich power 1s transmitted from the motor shaft tothe whichis readily removable for removing the upper members and permitting the release of the outer end of the shaft 22, which, when the machine is assembled, is received infthe bearings 33 and 34.

. Pivotallyv mounted on the opposite sides of theupright member 11 are brackets 36 and 1-} 36 which support a table'37 having a notch I 3'7? to receive the roller 47. On the-"outer upper portion of the brace 29 are brackets 38 for supporting the right-hand end of said table, "which projects beyond the shaft 22.

It will be seen that the table maybe swung upwardly and downwardly with a pivotalmovement with the brace 29. j The edges of the table'adjacent tothe cutters hereinafter mentioned, are beveled as at 39. I

Pivotallymounted in the upperportio'n shown in Fig. l.

of the upright 11 is a supporting brace 30,

which has one end projecting beyond the pivot 41 and connected with a spring. 42 The brace 40 extends downwardly and laterally, as shown in Fig;

1, and has at its'outer end a socket 43in V V which are received upper and lower bearmg members 44 and 45. The lower bearing 45 is held in positionby means of a cotter pin 46, which is readily removable.

' V The outer end of the shaft 23 is received 7 between the bearings 44 and 45. On the shafts 22 and 23.a-re rollers 47 and 48, in

which are longitudinal grooves '49. The

grooves 49 of each roller are preferably arranged diametrically opposite to each other,

the upright.

as shown in Fig. 3. V I

Connected with the end of the brace on the left-hand side of the pivot 41, is a cable the fact that the slot 1 9 is elongated.

' On the rollers 47 and 48'are mounted'cutting devicesfa pair of which are shown in Fig, 3. In Fig. 8 I have shown the cutting devices in front elevation. The lower cutting device has a hub 53, on which is the hollow annular diemember 54 forming the female element of the cutting die, provided with the connected zig zag grooves The upper cutting member has a similar hub 56 and a die member 57 having the zig zag cut ting blade or element 58 forming a cont1nu ouscutting blade. The cutting edges of the "blade 58 are curved, as at '59, as illustrated in Fig; 8, from side to side, so that the sections of the cutting blade 58 at the con-. "nected portions thereof, as at 60, project farther from the roller 48 thando the cen- 'tral portions of the respective sections of said cutting .blade. The thickness of'the blade 59 is less than the width of th'e'groove' to avoid'cutting with a shearing cut; The

hubs of the cutting members are provided with internal ribs or splines 61, which slide in the grooves49.

i This particular feature of the construction of cutting device is important, for the 1 reason that itis desirable to cut the leather but-not-tocut the "fur, and whereashea'ringcutis employed the fur or hair would In order to hold the hide taut between -thecutting members, t permit the hidgto betcut neatly without the employment of-a "shearing action, I have provided the followingmeans:

: On' each roller I'mount'a'gripping roller 62, which is slidably placedon the roller 48 or 47, asthe case may be. The respective 47, so that the hide may be gripped between the gripping rollers on the respective'rollers 47 and 48, for holding it taut during the cutting operation. The rollers 62 are pro vided-with pins or the like 63, which project into the grooves 49 for holding the gripping rollers against rotation.

.J. 7 Two sets or cuttlngdevlces and gripping gripping rollers 62 on the roller register a .with the respective rollers 62 on the roller rollers may be mounted on the rollers 47 and r 48, if desired, so that two outs may be made on a hide at one time,'where that is desirable.

In Fig. 4 I have shown a slightly modiranged in slightly different manner than that shownin Fig. 8. The cutting member shown in Fig; 4;is indicated by the reference character 64.

In the practical use of my improved machine, the machine is assembled in the manner heretofore described. The gripping roll: ers and cutting members may be placedon the rollers 47 and 48, and adjusted thereon with out difficulty. Itwill be noted that the brace 29 may be lowered at its outerend against the. pressure of the spring 31, and that the table members 37 and 37" will swing downwardly with the brace 29. The cotter pin 85 may be removed from the brace 29 and the bearing member 84 before the brace is lowered, and itis obvious that when the brace is loweredthe end of the shaft 22 will be accessible for mounting the gripping r0ll-- ers and the cutter members thereon.

brace 29 may then be raised, and'the upper bearing member 34 replaced position.

For placing the gripping rollers and the cutter member on the upper roller 48, the operator may puthisfooton the lever 51 for raising'theouter-end of theroller 48, whereupon the cotter pin 46 may be removed and the bearing 45 taken out, after which'the shaft 23 may belowered slightly formaking it possible to place on it the gripping rollers and the cutter member. l After the gripping rollers and cutting members have been assembled, the'sh'aft23; may be placed in proper position with relation to the bearing 44, and the bearing 45 replaced, as shown in Fig.v 7. The roller 48 is then'lowered into its horizontal position, and the m'achineis ready for use.

In cutting a h'i'de 65, the hide may be jfied form of the male cutting'member, 1n .WhlGll the cutting blade sections are ar- The placed on the table member 37 and shoved The hide is ordinarily' cut be cleanly cut but thehair will not be cut.

It is necessary. in cutting 9. hide, ordinarily to out on irregularlines in order that the seam may not appear when two'sectlons of .hide are sewed together along their cut edges. It is also necessary that the hide be i out without, cutting the' hair, and the diffilines.

culty of making machine for thepurpose of cutting hides ingtliis mai'iner willbe ob vious in view er those facts.

Mymacliine is'of simple construction, and

will not easily get "out of order. The cutter members may be adjusted on the rollers 47 and 48, for effecting cutting on the desired With a machine of this kind the GX- pense of cutting'a 'hidewill be very materially reduced.

Some changes may be made in the construction and arrangement of the parts of my improved zig zag hide cutting machine without departing from the real spirit and 1 purpose of my invention, and it is my intenthe width of the groove being greater than the thickness of the knife, and means on the opposite sides of each cutting member for gripping and engag ng a hide for holding it taut.

2. In a device of the class described for cutting hairy hides, a support, a pair of shafts mounted thereon, cutting devices supported on said shafts, said cutting devices being arranged to cut hides on zig zag lines,

and having coacting cutting members or dies 7 provided respectively with an irregular groove and an irregular knife, substantially as shown, and gripping rollers supported on said shafts on opposite sides of said cutting knife, for'engaging a hide and holding it taut during the cutting operation.

3. In a device of the class described a support, a pair of shafts mounted thereon,

cutting devices supported on said shafts, said cutting devices being arranged to cut hides a on zig zag lines, and having coasting cutt ng members or dies provided respectively with an irregular groove andan irregular knife,

substantially as shown, said groove being of greater width than the thickness of said knife, and means for holding a hide taut during the cutting operation. V 4:. In a device of. the class described, an upright, a shaft supported thereon near one 7 end of said shaft, for rotation, a roller on said shaft, an adjustable support for the other end of said shaft, a second shaft mounted on said upright near one end of said shaft, an adjustable support for the other end of said second shaft, a roller: on said sec-v ond shaft, coacting cutting devices mounted on said rollers for cutting hides on irregular lines, and gripping rollersQoneach of said first-named rollers, on opposite sides ofthe cutting devices, for gripping and holding a 1 hide taut. I. j i

Ina device the class described, an up -ight, a shaft supportedthereon near one end of: said shaft,.'for iotation, a. roller on said shaft, 'air adjustable support for the other end of said shaft, a second, shaftf "mounted on said uprightnear one end of said shaft, an adjustable support for the other end of saidsecond shaft, a roller on said sec: ond shaft, coacting cutting devices mounted v on said rollers for cutting hides on irregular, 1

lines,'and gripping'rollers on each of said first-named rollers, on opposite sides of the cutting devices, for gripping and holding a e hide taut, said cutting devices and gripping rollers being slidably but non-rotatably mounted on saidfirst-named rollers.

6. In a device of the class described, an 1 upright, a shaft supported thereon nearone end ofsaid shaft, for rotation, a roller on;

said shaft, an adjustable support for the other end of said shaft, a second shaft mounted on said upright near one end of said shaft, an adjustablesupport for the other end of said second shaft, a roller on said sec-, ond" shaft, coacting cutting devices mounted on said rollers for cutting hides on irregular lines, gripping rollers on each of said first named rollers, on opposite, sides of the cutting devices, for gripping andholding a hide taut, a motor onsaid upright, means for imparting movement from said motor to one of said shafts, and gear ng devices for connecting said shafts.

7. In a device of the class described,

upright, a shaft supported thereon near one end of said shaft, for rotation, a roller on said shaft, anadjustable support for the "other end of said'shaft, a second shaft mounted on said uprightne'ar one end of said shaft, an adjustable support for the other end of said second shaft, a roller on said second shaft, coacting cutting devices mounted v on said rollers for cutting hides on irregular lines, and gripping rollers on each of said first-named rollers, on opposite sides ofthe cutting devices, for gripping and holding a hide taut, one of said shafts beingpivota'lly and slidably supported on said upright.

8. In a. device of the class described, an'

upright, a shaft mounted nearone end of said-upright and projecting away from the upright, a second shaft pivotally and slidably' mounted on saidjupright near one end of the second shaft,;gearing devices'forconnecting said shafts, means for imparting motion to one of said shafts, a pivoted support mounted on said uprights and connected with the outer end of said second shaft, a foot leverv operatively connected with said last described support, cutting devices supported on the respective shafts, and gripping v I ifollers 2m oppesite sides of the cutting de- "Vices, for holdinga hide taut during the cutting process.

7 9. In a machine of the classdescribed; means for holding a hide with the fur there-' on taut, cutting devices interposed'between' said means and comprising a membe'r p 'omember adapted to'enter said groove space from'the edges thereof for cutting a; hide'10 V Without cutting the fur thereon; M

Des Moines, Io a, May 28,1920. i

HWENZL WAsH;

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