US12794A

US12794A - jhose

Info

Publication number: US12794A
Authority: US
Publication date: 1855-05-01
Anticipated expiration: 1872-05-01

Description

i Tall/whom t mayiconern." i

A`'1T-ED,STATES HosEiQRQHQRToNOn NonTHviLLnnIoHIGAN. s

PATENToFFioE.

" I isooncnivrrine"IMAGHINE. i

Beit knownjthatl lfHosnAB. i oleron, of

The feature that peculiarly distinguishes j `this improvement J `from Vothers `heretofore "known, is inytheintroduction ofanadjustable wire, or its equivalent-in the facev of the 1j aws, bywhich I am enabled more eifectually "to compress the wetleather, particularly when it is of a variedthiclmess, the machine :performing theaction'of the hand hammer of` fencing a" spreading or stretching the l leather in those thin places, for the purpose ""oftaking outthe wrinkles therein.` This has ,been attempted by L an `improvement in the "fjaws, by H. Si Davis in 1846, `by rigid pro- "`jecting teeth or scrapers,xbut to any one con- `versant with leatherfitwill be `perceived that the rigid `teeth, will; not answer, as fre- `quently `a thin place occursfthat the paws would pass over` `without removing the wrinkle. The movable `oradjustable wire, answering `the purpose of the teeth or 1 "scraper, may befreadily projectedV beyond the face of the jaw at anypointfound necessary to eifect thedesired object. j h j a A second feature of `novelty `is inthe ar- 1 rangement and combination of the clampor holder of the leather, when crimping, that .j thestretch shallbemaintained by set screws,

passing through the clamp, operating against "the edge of the` crimp zform, or mold, thus preserving the crimp` on the same, when the i. former,V withI the leather `clamped thereon 1"is removed fromtheinachine for the reception of another crimp and.`former.f 1 j, ""A, A,areupriglits of a frame, made of fmetalsecuredto the floor by suitable flanges. 1 z They form ways for. the jaws B, B, to slide `onin the.vertical movement thereof. These fuprights join atthe top, forming anarched ffranue.' l" The jawsaB, B, `interlock or clasp jj upon the uprights AA, havngliberty of i `movement thereonand privilege of separation slightly from each other. a j C, G,`"is an elliptic spring,\one end embrac- "'ingxthe jawsythe other connected with a lever D, by which thejaws are made to slide `up and down, 4and to slickf'overl` the wet leather, thisspring serving asa pitman and means of compressing the jaws toward each other, the grasp being regulated by a screw bolt E,lpassing from blade to blade of the spring.`

vF, is the crimp form, or mold, which is slipped between the uprights, and `sustained in `place by the angles of the frame, and a thin `cross girt below it, "this cross girt O,

(seeninfFigure 2) serving also as a guide to the jawsV'a-nd means of keeping `them `slightly open.

Gr is an angularly formed metal clamp `conforniing in `a degree with the back edge yof the crimp `form and to which it is applied ;k y

it -is tapped` with a screw nut throughwhich passes the male screw Hf j f 1,1, are clamps which being placed over the edge ofthe angle-clamp with the leather on each side thereof between Iand Gr. On being slightly drivenl with a hammer,'the` leather is locked to the clamp. The center clamp is placed at the angle of Gr` through which the screw H freely passes.

K, is a turn wheel whose stem passes through the arch of the frame, and has an openlink a, through which a pin is inserted. v

Vhen the screw H, is to be turned, and on the removing of the pin the crimp form may be detached. i

Fig. 3 shows the inside of one of the jaws in which a wire b b, is laid in a groove near `the edgeof the jaws, the wires alsoshown in cross section FigjQ.

d, d, are set screws tapped in the thickness of the jaws whose ends project the wire opposite them, as may be desired by turning the screws, and thus bring the pressure of theV jaws upon thin` places of the leather, which otherwise would escape the crimping of the jaws were they not thus madeto conform to the thickness of the leather.

The operation of crimping is as follows: A piece of wet leather having been laid across the jaws, it is by the raising of them through the lever D, forced upon the crimp form l F. By the repeated sliding up and down of the jaws on the leather, it is slicked smooth and embraces the crimp form. Should there be noticed any thin places in the leather and that the wrinkle is not perfectly removed, the nearest set screw is turned and the wire b, Z), made to project be- 11o yond the face of the jaw opposite the screw.V

This is all that is necessary. Having forced the edges of the leather above the crimp form and on tothe angle iron G, clips or clamps I1, Il, are driven over. Now in turning the stem K by one hand, and with it thescrew I-I, while the jaws are moved by the other hand, the screw II, by pressing against lF,-

draws tight the leather on the crimp form and completes the operation.

'What I claim as my invention and desire to secure by Letters Patent is- The adjustable wires Z) (made so by sety screws d d) on the faceof the jaws B, B, arranged substantially in the manner and for the purpose set fort-h.

In testimony whereof I have hereunto signed my name before two subscribing witnesses.

HOSEA B. HORTON.

Witnesses: i

W. S. CLARK, CHS. P. VVANNALL.