US1161038A - Stripping-machine. - Google Patents

Description

H. H. EATON.

STRIPPING MACHINE,

APPLICATION FILED JAN.9.1913.

Patented Nov. 23, 1915.

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HARRISON H. EATON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON JERSEY. i

, NEW JERSEY, A CORPORATION OF NEW srnrrrine- /iaoninn,

actose.

To all whom it may concern 1 Be it known that I, IIARRISON H. EATON, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Stripping-lvlachines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures. l

This invention relates to cutting machines and is herein illustrated in connectionwith a machine for cutting a hide into strips.

In machines of this class considerable difficulty has been experienced in feeding the hide properly into position beneath the knife. Hitherto this feeding has been accomplished manually and has been attendedwithconsid erable danger;and the general object of'the present invention is to provide a suitable feed mechanism which is much more efle'ctive and safe than the old hand method.

Onefeature of'the present invention comprises in a machine of the class described a cutting block, a stripping knife, means for reciprocating said knife, a support for a piece of stock, and means independent of the stripping knife and under control ofthe operator for drawing said piece along said support and stopping it in position to be severed by said knife. This and other features of the inventionincluding certain details of construction" and combinations of parts will be described in connection with an illustrative machine and pointed out in the appended claims; a

Referring now to the'accompanying draw ing, the figure shows in perspective aportion of a machine in which the present invention is embodied. I

The frame 1 of the machine supports a cutting block 3 with which a stripping knife 5 cooperates, said knife being carried by a cross-head 7 supported by rods 9 which are vertically slidable in suitable bearings in the frame. The reciprocation of'theserods from the counter shaft 11 is accomplished through two similar sets of connecting members,yand hence only one set will be describedn fEach rod is fast atitslower end to a block15 having a groove which embraces as'uitable Specification of Letters Patent.

Patented Nov. 23,1915.

Application filed January 9, 1913. Serial No. 741,020. I

guide 17 formed on the frame of the machine whereby said block may slideverticallyJ And embracing this sliding block and pivotedto it at 19 is .a lever 21 which forms part of a toggle, the other lever of the toggle being shown at 23. To the knuckle 25 of the toggle is pivoted an operating link 27,

said link at its opposite end having an'eye which embraces a crank pin on the counter shaft 11. The counter shaft is driven from a continuously rotating driving shaft 29 bv means of a pinion 31 fast to said shaft and i a gear 33 which may be connected by a Horton clutch with the counter'shaft so as to cause said counter shaft'to mak'e'one revolution and come to rest. The-details of this clutch and of the brake 35 which prevents overrunning of the countershaft will not be described in detail since the particular onerevolution clutch made use of is immaterial so far as the present invention is concerned.

It should be understood, however,that when .7

the hand lever 37 is depressed the knife "5 will be caused first to descend upon the cutting block then to'rise andcome to rest in the position 3 to cut oil a strip of stock and shown. A long wide stock table, a portion of which is shown at 36, extending rearwardly from the. cutting block and having HES uppersurface in the same plane as the upper surface of said block, supports the x hide or other piece of stock which is to be cut, the forward end of said hide being drawn through beneath the knife and upon the table 39 after each operation preparatoryto the next one. I

The machine as thus far described is old and well known, and no further detailed description will be given;

In" manipulating the machine it has been customary for the operator to stand in front of, the table and to reach underthe knife orthrough the openings in the cross-head between the operationsin order to gethold of the forwardl portion of the? hide. TSuch reaching/besides being a" slow v procedure is dangerous sincea premature throwingvi n of the clutch may easily cause serious in jury to; the o 'aerator; The" object of the present invention, as has beenstated, is to do "awa with; this manual feeding of the hide andthereby to increase the capacity of the machine as well as to remove all liability of injury to the operator.

From a pulley 41 on the drlving shaft a belt 43 leads over a pulley 45 on a' stud shaft to which is fast a gear 4:7. This gear meshes with the larger gear 49 on a shaft 51 to which is fast a feed roll 53, the upper portion of said feed roll protruding through the surface of the casting 1n which the shaft 51 is mounted, the upper surface of said casting being an extenslon of and forming a substantial portion of the surface ofjthe stock supporting table. This roll is thus rotated continuously but will not'act tofeed the hide forwardly to the knife until said hideis pressed down upon said roll. In

5 connecting rods, one of which is shown at 63, and a treadle65, aspring 66serving normally to hold said treadle in raised position.

Hides, which are the material usually operated upon by this machine, almost never lie flat upon the table but are more or less Warped or twisted so that their forward edges will not pass'readily between the feed rolls. In order, therefore, to guide properly a misshapen hide a flaring guide 67 is located at the rear of the rolls 53, 55, said guide serving to crowd the hide or other stock down upon the stock table.

In order to limit the forward movement of the hide and thus predetermine the width of the strip which is to be cut off, the table 39' is provided near each end with sockets "69 to receive stop pins 71..

The operation of the machine is as followsz -The stop pins 71 are set at the desired distance from the plane of the knife 5, and a hide is laid upon the table 36 with its forward edge overlying the continuously rotating roll 53. The treadle is depressed thereby rocking the upper roll 55 downwardly so as to press the hide'against the roll 53 whereupon the hide is fed forward until its forward edge contacts with the stop 71. The treadle 65 is then released and the lever 37 depressed to throw in the clutch and'cause the knife to make a reciprocation. The strip of stock which has been out off isremoved and the operation of the machine is repeated. In'this way, ahide orother piece of stock may be rapidly cut into strips of'adesired width withoutiexposing the operator to any possibility of injury.

Although the invention has beenset forth in connection with a particular machine it should be understood that thezinvention is not limited in the scope of itsapplioation to the particular machine shown and described.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is 1. A machine of the class described having, in combination, a cutting block,a stripping knife, means for reciprocating said knife, a support for a piece of stock, and means independent of the stripping knife and under control of the operator for drawing said piece along said support and stopping it in position to be severed by said knife. 7

2. A machine of the class described having, in combination, a cutting block, a strip-s plng knife, means for reciprocating said o position to be severed by said knife, and a stop for limiting the movement of saidpiece and thereby determining the width oft-the strip which is to be cut ofl'. V

3. A machine of the class described having, in combination, a cutting block, a stripping ;knife, means for; reciprocating said knife, a support for a piece of stock, a con tinuously rotating feed roll/ extending through said support into position to engage theunderside of saidstock, and means independent of the stripping knife and une der control of the operator for pressing said piece down upon said roll and for raising the pressing means.

4. A machine of theclass described having, in combination, a cutting block, a stripping knife, means for reciprocating. said knife once and bringing it to rest, a support fo a piece of stock, a continuously rotating feed roll extending through said support into position to engage the under side of the stock, an idle feed roll normally held abovethe stock opposite the first-named roll, and means forlowering said idle roll into contact with the stock to press said stock against said continuously'rotating roll.

5. A machine of the class described having, in combination, a cutting block, a-qstripping knife, means for reciprocating said knife; once and bringing it to rest, a support for a piece of stock, a continuously rotating feed roll extending through said sup port into position to engage theunder side of the stock at a point in the rear of the knife, an idlefeed roll normally held above the stock opposite the first-named roll, a flaring-guide extending upwardly and to the rear of the said idle roll, and means for lowering said idle roll into contact with the stock to press said stock against said con-' tinuously rotating roll. 6; A machine for cutting a piece of leather into strips having, in combination, a cutting rest, a support for a piece of leather extending from the rear of the machine and located on that side of the knife opposite to the operator, and means under control of the operator and independent of the knife for drawing the piece of leather toward said oper 10 ator.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

- HARRISON H. EATON.

Witnesses:

Cnnscrnn E. Rooms, LAURA M. Goonnmen.

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

Washington, D. C.

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