US273858A

US273858A - George w

Info

Publication number: US273858A
Authority: US
Publication date: 1883-03-13
Anticipated expiration: 1900-03-13

Description

(No Model.)

G. W. KORN.

POCKET KNIFE. No. 273,858. Patented Ma.1.13, 1883.

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GEORGE IV. KORN, OF NEW YORK, N. Y.

POCKET-KNIFE.

SPECIFICATION forming part of Letters .Patent No. 273,858, dated March 13, 1883,

Application filed October 2, 1882.

To all whom 'it may concern:

Be it known that I, GEORGE W. KORN, a citizen of the United States, residing at the city oi' New York, in the State of New York, have invented certain Improvements in Lock- Knives and Fly-Openers,of which the following is the specification.

The object ot` this invention is to produce a lock-knife and ily-opener that is simple in construction, sate, and effective in operation.

Figure lis a side view ot' the knife open. Fig. 2 is a longitudinal sectional view, showling the form and position ot' the Hyopeniug spring; FigS is a longitudinal view through litio om of Fig. l, looking from the top, as indcatetl by the arrow in Fig. 1. Fig. et is a perspective view of the lock-level'.

Similar letters of reference refer to similar parts in the different drawings or figures.

A is the handle, having blade O' attached thereto by means of the ordinary rivet..

Bisthe lock-lever, set inthe side ot' the handle, as shown in Fig.3. This lock-lever works upon the pivotH, which consists ot' a-pin passing down through the side ot' the handle, as shown at H in Fig. l.

F, Fig. 3, is a spring located at the reareud of lock-lever B, and on the under side thereof, and made to act outwardly.

D is the tlv-opening spring, located in the knife-socket in the handle and fastened to the handle at K.

I I are two pins in the front end of lock-le ver B, and are made to enter the holes E in the heel of the blade.

(No model.)

In using this knife, the blade being` closed, the spring D is compressed and the blade is prevented from flying open by the pins I I of lock-lever enteringr holes E in the blade, and the spring` F, acting outwardly on the under side of rear end ot' lock-lever B, causes the front end of the lever to press snugly against the side ot' blade O,and the pins I I to remain in holes E. To open the blade, the rear end of the locklever is pressed downward, which lifts the pins I I from the holes E when the ily-opening spring D throws the blade O open and the pins I I are forced into the holes O in the blade, which rigidly holds the blade in an Open pOSlllOIl.

This form of construction of a knife of this character is very simple and con'1parativel5T inexpensive, costing only the same as an ordinarv7 pocket-knife.

I am aware that springs have been used to throw open the blade ot' knives, but not arranged and constructed or operating in the manner herein shown.

I claim- The combination of the handle A, blade C, having holes O and E in butt-end, the lock-lever B, working on pivot-pin H, having pins Ilin one end,actuated by the spring F at the other end, and the fly-opening spring D, all constructed and operating substantially as and for the purpose shown.

GEORGE \V. KORN.

Witnesses:

PHiL. E. WINTER, O. SYNNEs'roEDT.