US69229A - W i l l i a m m a n n h e i m - Google Patents

Description

@uitten tatrs atwi @ffice WILLlAM MANNHEIM, OF NEW YORK, N. Y.

Letters raient No. 69,229, datecZ'iS'eptember 24, 1867.

IMPROVED MACHINE FOR TAPERINGLEATHER.

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TO ALL WHOM IT MAY CONOERN:

Bc it known that I, WILLIAM MANNHEIM, of the city, county, and State of New York, have invent-cd n. new and improved Machine for Tapering Leather; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figurel represents` avertical longitudinal sectional viewof my improved leatl1er-tapering machine, the

l plane of section being indicated by the line :t x, iig. 2.

Figure 2 is a plan or top view of the same.

Figure 3 is a front elevation partly in section of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to a machine in which the edges ofleather strapscan be bevelled or tapered, and also the ends of the same, but in which, when desired, the leather can also be scraped or shaved so as to be reduced in thickness to anequal degree throughout. I f

Thel invention consists in the arrangement of `a knife or cutter, which is hinged at one end to a stationary frame, while its other end is adjustable up and down, and in the use, in combination with the above, of an up and down adjustable frame, onwhich a friction-roller is held, the axis of which is directly under the cutting edge of the knife; said roller being the bearing for the leather, its greater or less distance from any part of the cutting edge of the knife Vindicating the thickness of leather, as the same will be cut.

For tapering the ends of leather belts a sliding frame is arranged by which the roller is gradually raised toward the knife, thereby gradually decreasing the distance between the said roller and the cutting edge of the knife, and consequently also the thickness of leather toward the end of the belt. By means of set-screws the degree of inclination can be variedand regulated at pleasure.

A represents a level cast-iron or other bedplate,vwhich is provided with downward flanges, or with countersunk holes, or which is otherwise so arranged that it can easily bc screwed or secured to the edge of a stationary table, B, which is shown by red lines in figfl. From the ends of the bed-plate A project upward the vertical arms I) and c, which are clearly shown in figs. 2 and 3. From the upper end of the arm Z1 project two lgs or ears d el, which are the bearings for a pin, c, around which one end of a cutter, C, is hinged. The other ond of the latter is hinged by a pin, f, to a horse-sl1oeshaped bar, g, through the slot of which a'set-screw, D, passcs, for'which the nut is formed in the upright c, and which is provided with shoulders h z., by which it engages the har g and moves it up or down, as it is turned in thc'one or other direction, (sce fig. VThe knife C can thus be set in Van inclined position, the angle being varied at pleasure by means of the said set-screw D.J The bar g is necessary, as itv-prevcnts the knife from being strained, which would be the case unless the knife or the set-screw is `jointed. As it is arranged the barg will always remain level, the slot permitting au easy selfadjustment as the position of the knife C is varied, When. thebar g is screwed ,down so as to touch the top of the arm c the cutting edge of thel knife will be level. E is a frame which is pivotcd by pins to thc lower part of the uprights b c, and which extends across thc whole width of the bed-plate A; the pivots being on the inner side, 'while its free or swinging part is on the outer side of the saine, as is clearly shown in iig. l. About midway between the free and the pivoted sides of the frame E is pivoted to the saine, by means of pins jj, an upright frame, F,'in which the bearings for a horizontal roller, G, which extendsI along the whole length of the machine, and the axis of which is directly below the cutting edge of the knife C. By a spring, H, the frame F is pressed against the uprights b c, while set-screws R R keep it olf, and1 thus the axis of thev roller can bc moved toward the knife when the cutting edge is worn. A set-screw, Z, arranged in the badplate A, under the free end of the frame E, serves to raise the frames E and F, and consequently also thc roller Gpmore or` less toward the knife, as is indicated by red lines in tig. 1. I is a bar, having its bearings Ain the frame, and being parallel with the roller` G, but somewhat elevated above the same. It is arranged so as to slide in its bearings, and so that it can beeasily drawn out of the same, but can be fastened by a set-screw, m. A sliding block, J, is fitted upon the bar I, and reaches to the roller G, as is clearly shown in the drawing. It slides loose on the bar I, and can be fastened in any position by a set-screw, n.

The operation is simple andas follows: The knife is set by the screw D to the desired angle. By the set screw l the distance between the lower` end of the cutter and the roller G is adjusted. Then the block J is moved on the bar l so that the distance between it and the upright b will be equal to the width of the leather strap to be cut. 'lhe end of the leather' is then inserted under the cutter by swinging the frame F back against the spring 1l, for which purpose a handle, o, is provided en the frame F. Then the latter is, by'thc spring H, again forced against the uprights b c. Then the leather is drawn through in the direction of the arrow in fig. 1, and will then be cut or tapered in the manner indicated by red lines in fig. 3. lf both edges arc to be tapered, the strap, after having once passed through the machine, is once more drawn through the same,'but with the opposite end. The block Jscrves to keep the strap in position and prevcntit from being cut unevenly or irregular. When the strap is only to be shaved, so that both sides arel parallel, the free end of the cutter is lowered as far as possible, and the rollerG is adjusted by the screw Z. in accordance with the desired thickness of material. When the device is to be used for tapering the ends of straps for bclting and other purposes the knife is arranged level, but the set-screw lis removed, and in its place a frame, L, is arranged between the frame E and the plate A, as is clearly shown in iig. 1. This frame L- has an upward extension at the outer side, on which an eleva-ted platform, p, is formed, as shown. Upon the lower horizontal or level platform-q of the frame VL is hinged to the outer .side a frame, 7', the inner side of which is held up by'a set-screw, s, by which its angle of inclination is adjusted. When to be used this frame r is so adjusted in accordance with the required slope, the whole frame L isimoved in as far as necessary.. The free end of the frame E rests on the frame 7', as shown. '.lhe latter is then inserted in the manner hereinbofore described, but so that only that portion of it which is to be tapered projects beyond the cutting edge'of the knife. Then the block J is adjusted on the bnr I. As the strap hangs over the platform p ofA the frame L, the strap and platform are jointly taken hold of and are then pulled in the direction of the arrow, fig. 1. The frames E and F willv then be gradually elevated as the frame L is being pulled lout7 and thereby the roller G is gradually raised toward the edge of the knife, thereby diminishing the space for the leather to pass through, and tapering it in thc required degree. By'

springs t`t the frame E is forced down, so that it willl be easily lowered as woll as raised.

Claim.

I clairn'as new, and desire to secure by Letters Patentl.. A machine in which leather straps'ean be shaved or bevelled, or their ends tapered, which is yarranged so as to be adapted to every width andthickncss of leather, and which will operate substantially in the manner herein shown and described.

2. The jointed and hinged knife or cutter C, when arranged on the stationary frame so as to be adjusted in position by the screw D, substantially as and for the purpose herein shown and described. A

3. 'lhe rcniovable rod l, when provided with the adjustable sliding block J, in combinationwith the roller Gr and cutter C, all made and operatingsubstantially as herein shown and described.

4. The sliding frame L, when provided with a handle 1J, in combination with the fraineo', set-scrcwss, frames E and l", roller Gr, and cutter S, all made and operating substantially as herein shown and described.

. The hinged jointed cutter C, in combination with the roller Gr, all made and operating substantially as.

set forth. n

WM. MANNHEIM.

Witnesses:

Wn. F. McNAMAnA, ALEX. F. Ronnirrs.

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