US76408A - Improved sole-outtiug machine - Google Patents

Description

@uiten ftstrs @sind @ffice TIMOTHY A.' Gnarls; or BeooiiFiELD, MASSACHUSETTS.

Letters Patent No. 76,408, dated 4410111.11868.

IMPROVED lSOLE;GUT'I'ING MACHINE.

T O ALL WHOMT MAY CONCERN: v

'Be it known that I, TIMOTHY-A. "CURTIS, of Brookfield, in the county of Worcester, State of vhilassnch'usette, have invented certain new anduseful Improvements in Sole-Cutting Machines; and I do hereby declare the following to be a full, clear, .and exact description of the same, due reference being had to the accompany ing drawings, the letters of referencerV marked thereon, in which. I

Figure 1 shows a side View of Amy improvements, and

Figures 2 and 3 show some parts hereinafter more particularly described.

The objects of'my invention are to provide an eicient means to secure the knife to its holder or head, which shall be readily adjustable to the different sizes of knives and keep them yeven on the centre of motion, and not spring or throw them out of shape, and also to secure a. convenient gauge, easilyadjustable to the different kinds of work, and operating with the cutter.

To these ends, the nature of the invention consists in providing the knife-holder with two 4T-headed bolts,

' with thumb-nuts, and4 arranged to siidewith racks, .worked by a pinion in the centre, or near it; -also, in

arranging the gauges on each side of the knife-holder, so that one of them will be right alternately, und the operation of cutting will throw them up ready for the knife to turn.

-The knife A, (see dra\vings,) is made in the usual manner, and with a hole at each end, a little down from the top, for the bolts B B to hook into. Gis the head, in which the bolts slide by means of the racks D D,

`1g22, operated by the pinion I, and' J J are the nuts to tighten the bolts and hold the knife firm. L -is a gauge, made to t and` slide in a groove in the heads, the point beinguadjustable by the screw O, as rshown in iig. 3, sc as to be set towards or from the knife A. The other gauge is similarly placed Von the other side of the head C, notshown in `the side view. .At iig. is also shown a spring-follower, which is placed inside the knife, and held-there by its-projecting lips, which t into notches in the upper edge'of the knife, the rubber springs P P sliding to and from the middle, to adjust to different sires. is the cutting-block, working with the slide V, which may be operated by any suitable means, ythese parts to be `supported by. framework, and' the other parts maybe of the forms in use, or' other suitable form; and, their uses being well known, it isnot deemed necessary-` to show or describe them here,'and it is evident that hook-bolts may beused, instead of the form shown.

The operation of fastening the knife iu place is to turn the pinion holding the knife up until the hooks o' bolts catch in the holes, andthen tighten the thumb-nuts J J. rlhe simultaneous movement of the bolts keeps them equidistant from the centre, and thustiues thel knife, the short knives com-ing inside the bolts and the large ones, outside. The operator, standing in front of the machine, feeds the stock from one hand, and with the other slides down the gauge', and then brings the edge of the leather to it, and the table rises, making tho cut and raising the gauge up. As the table falls, the head turns half round, and the operator repeats as before, the gauges being set to their proper places.

I am aware .that bolts and nuts have been used to secure the knives to the holder; these I do not claim, but

What I claim as new, and desire to secure by Letters Patent, is-

1. Securing the knife to the head, by means ofthe bolts, in connection with the racks and pinion, or other means of adjusting them, substantially the same, when constructed ia the mannerand for thepurposes and operating substantially the same as above set forth and described.-

2. The adjustable gauges, attached to head C, substantially as described.

TIMOTHY A, CUR-TIS.

Witnesses: A

F. C. Tanna, JAMES G. ARNOLD;

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