US79193A

US79193A - Charles bishop

Info

Publication number: US79193A
Authority: US
Publication date: 1868-06-23
Anticipated expiration: 1885-06-23

Description

@nimh ftons gstrnt @ffice `accompanying drawings.

CHARLES BISHOP; or TitUMBULnfooNN'Ec'riGUT.

Letters Paraninfo. 79,193, dated Jima 23, 1868.

IMPROVEMENT IN SHEARS.

TO ALL WHOM IT MAY CONCERN:

Be it vknown that I, CHARLES BISHOP, of Trunzibulhin the county of Fairfield, and State of Connecticut, have invented a'new and improved Joint for'Shears, Ste.; and I do hereby declare the following, when taken i in connection with theaccompanying drawings, and the letters of reference'markedthereon, t0 be #L full, Cler and exact description ot' the same,and which said drawings constitute part of this specification, and represent, in-

Figure 1, an inside view of one blade,` Figure 2 an inside `view ofthe other` blade, and in' Figure 3 a transverse seetion'through the pivotA This invention relates to an improvement Aiu common shears, the object being to make a more perfect joint than canbe done by the common pivot, and the inyention :consists in forming a circular ange upon one bladel and a, corresponding recess in the other, so that the ltwoifitting together form the bearing for the two b lades,.v

'while the screw or rivet, which passes through the two, has only` to hold the two blades togetheiybeingdby this constructionentirely relieved from all strain. o

In order to the clear understanding of my invention, I will fully describe the same as illustrated in the A is the ene blade, constructed with the iinger-handle B, in the usualmanner; Gthe other blade," with the thumb-handle D corresponding to 'the blade A, as in shears ofcoinmon construction.. a is a central hole, in which is usuallyr inserted the `pivot;V Upon the one blade C, I forni a' raised ange, d, centrally around 'the' hole a, and so as to leave a shoulder upon the inside of the flange, as seen in iigs. 2.and 3. In the other blade A., I form a reoess,j', corresponding to the ange oZupon the Yblade C, so that the ilange will set into the recess in the blade A, when the two are placed together,as seenvin fig. 3;' thon, through the vhole in each hlade,I pass a rivet or screw, z', to screw the two blades together iu the usual manner; and the shears are complete, and by this construction the bearing is made so large that there is much loss wear upon the joint, and the b'ladesare consequently held firmer and longer in their proper relative position to each other. f

I do not broadlyy claim forming a. disk upon oneblade and a correspondingI recess on' the other blade, as thismay he seen inthe patent granted to T.' J. Sloane, September 1842. i

Having fully described my invention, what I claim as new and useful, and desire to "secure, by'Lette'rs' Patent, isd Shears, the joint of which is constructed in the naanner described; that is tosay, the one blade constructed l with a circular Hange, d, the internal diameter of which isless than the rivet orA screw, the other blade withva recess correspondingto the-said flange d, and so that a, portion `ot` the recessed bladewill enter, till, and tit the` spacewithin the circular ange' on the othei` hlade,'and through the'centre of which a. screw or rivet, tf, is placed, 1 to secure the two blades together, substantially in the manner and for the purpose set forth.`

- CHARLES BISHOP.

Witnesses: l

FnANcrs E. BALDWIN', H. F. BLAKE.y