US79191A - Georg bergni - Google Patents

Description

uiten vtentes ntrn'l @ffies p e grs ' IMfnOvEMENT INQSHLABS,

'TO ALL WHOM rig-MAY OONOERN: l

Beit'kncmfrr that-TGEORGQBERQN; Uli-"Washingtorqip'the eounty-of Franli'lng--and State of'Missouri, have invented n. new and useful Improved B'Olt and Spring for Shears, of' which thefollowingvis afull, clear, und exact description, reference being had to the annexed drawing, hinking a part ofthis specification, in whieh-a Figure 1 represents u pair of ehem-shaving iny invention. `Figure 2 represents'a. detached-view of my invention. Similarletters indicate like parte, A' y The object of theinventon'is to errungen-spring foropening shears insueh a. manner-'that it will be simple, .flur-nble, and Vnoi: interfere with the hand when using the 'sl'ienrsnV n In shenrs, A, of nydesired form, I mnke the bolt b, iig. 2, somewhat larger than usual,with a thread,`c, on one end,`a.nd over the head, dLI plaise a'brond cap, 'e,rigs. 1 and 2, all, however, melde in onepiece. In t'lle side of the bolt, near the end, is a. slot, h, made to receive n eorrespOnding-stud in the under blade Ic of the shea-rs. The'bolt being in place, -it issecured hy un o'rilinnry nut. Through 11n-opening in the head d is passed n coibepring, o, figs. l'and 2, which is wound around the head, its otherend being curved so as toi-est against the shoulder n on the upper blade s of the shears when the same are opened. 'It is evident that as soon as the V pressure used to bring the blades Atogether is removed, the tension of the spring will canse them te open nr once, the slot in `the bolt and its tud preventing thebolb from .turning Ol" coursetliis spring and boli: maybe' appliedto oflle instrument-s than shears, in fact lo all which have the scissors-movement; consequently I dO- `-not limit myself to'his purtipulnr instrumen-in the use of my invention.

What I clairnas my invention, and desire to seeureby Let'ltersPntent, is- The slotted-bolt l, wlith'ite cnpe, spring o, and shoulder n, all in combination; when rrangerl in relationto Veavelx other and the blades of4 the shears, substantially es nndfor'the purpose specilierl.

'GEORG BERGNER.

Witnesses L. Wmreneho, l

J. ADAMS.

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