US168924A - Improvement in parallel pliers - Google Patents

Description

I I. B. RUSSELL. Parallel Plier s.

. Patented Oct-19. 1875.

ATTOIIIEYS.

WITNESSES:

' and the tool is strong and neat.

do not have to extend through the jaws, ssthe slots of the other arrangement do, and hence UNITED STATES PATEN OFJFIGE,

HENRY It; RUSSELL, OF SVOOD'BURY, NEW JERSEY, ASSIGNOR 01* ONE-HALF HIS RIGHT TO ISALMYS. RUSSELL, OF NEW MARKET, MARYLAND.

IMPROVEMENT IN PARALL EL PLIE RS Specification forming part of Letters Patent No. l68 924, dated October 19. 1875 application filed September 4, 1875.

sists ot"open-ended grooves in the jaws for the gnide-pins,socontrived that the guidepins may be permanently fixed in the handles or levers before the jaws are attached, and then be Bngagml with'the jaws when they are applied by slidinginto the open-ended groovesa eontrivanee which allows ot' fixing the pins 'in the. jaws more permanently than they can well be when the pins have to be put into the handles through slots, and it allows of dressingont the grooves to make them true andsmooth by a milling'tooL-which cannot be used in the slots as commonly made.

My plan secures simplicity and cheapness, The grooves my tool has greater strength from a give quantity ot'nietal;

Figure 1 is a side elevation of my improved parallel pliers, with a part sectionedto s how the open-ended grooves; and Fig. 2 is a. section on the line x :v of Fig. 1.

Similar letters of reference indicate corre sponding parts.

A represents the handles or levers, which are pivoted at B in the-manner of ordinary pliers. 0 represents the jaws, which are pivoted to the levers at D near the gri ling ends, and at the other ends have open-ended grooves E, fitted on guide-pins F, projecting from the sides of the handles at thesame distzuicc from the pivotB that the pivots!) are. 7

I am aware that w mortise .hzis been used in pliers of this type; but my open-ended gnide-' groove or end open slot-enables me to inannfuct-lll'e the pliers cheaply, of great strength, and with an attractive appearance, because thelatter enables me to renchconveniently and dress nicely the inside. of slot by n achinery, while the pins D-are readily cast upon the handles A, and can easily-enter the slots. In the case of inortises the pins-could not en.- ter them hence,

What I claim is- I Pliers having pins D F equally distant from fulcrum B and jawsC. pivoted ou'thepins D, and provided with open-slotted rear ends, as and for the purpose specified.

. HENRY It. RUSSELL. Witnesses: H

J 01m M. HENDERSON, SAML. H. Lsnn.

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