US2378543A - Elastic work holder attachment for vise jaws - Google Patents

Description

H. P. FEST 2,378,543

ELASTIC WORK HOLDER ATTACHMENTS FOR VISE JAWS June 19, 1945.

' 1 Filed Nov. 1, 1943 Erma/P12;

INVENTOR.

I attachment.

Patented June 19 1945 9'51 z Application Noveinber 1, 1943. Serial .No. 508,562

' 'z'oiaims. ,gci. 81-38) This invention relates. to work holder attachments for vise jaws -and more particularly to an elastic work holding attachment such as rubber or the like.

' Among the objects of the invention are: to pro- 7 vide an improved elastic attachment which, upon application toeach jaw portion of the vise, will project the shape and finished surfaces of articles gripped by the viseyto provide'in an attachment for vise jaws improved mean adapted to snugly grip jaws of visesj'not conforming exactly to standard dimensions; to provide a work holder which. upon applicatiomwill yield in an improved manner-to irregularities in 'the vise due bothto variations in size as well as inaccuracy in work manship; to provide improve'djmeans y eldably applicable to the jaws of a visewhich will conform to the shape of articlesgripped and which will possess a non-slip qualityboth in relation to the vise and to the workheld thereby; to provide more, specifically as an article of manufacture an improvedfwork holder for vise jaws embodying elastic extruded material from whichto cut' to exactlengths for vise jaw attachments where'- in such vise jawsembodyvariations in size, in

tachment shown in Fig. ,2 i cut to the exactlength needed.

Referring in detail to the drawing, the work holder as. seen in Fig. 2 comprises an elastic arched top jaw facing wall G te; overlie the top surface. ofa visejaw 1 shown inzFig. l, and an elastic jaw facing gripping wall 8 "depending downwardly from that long edge ofzsaid arched top wall whichis located nearest the gripping face of the illustrated jaw when said holder is applied. Said gripping. wall is .shown joined to said arched top wall at an acute angle,,said acute angle being of a lesser, degreethan that embraced by the meetingwalls ofthe vise jaw l which said arched andgripping walls overlie, the

inherent resiliency of said top and gripping. .walls along their line'of juncture when stressed durcombination with a bendable half hard spring metal strip for securing such attachments to vise jaws; and, to provide a visejaw attachment gripping by virtue of its inherent resiliency, which is shock absorbing, reduces vibration in the work being operated upon and is adapted better to meet the requirements for which it is intended. g V

'The present invention is a continuation in part of my. copending application, Serial Number 4.171715, filed November 3, 1941, which resulted in Patent #2340316, dated Februar 1, 1944.

Referring to the accompanying drawing wherein is shown the alternate embodiment of the in ventionset forth in the patent supra,

Fig. 1 is a perspective view plied to the jaws of a Vise.

Fig. 2 is a perspectiveview of the attachment per se shown applied in Fig. 1, but on a larger scale.

Fig. 3 isa section taken on line 3- -3 of Fig.2. Fig. 4 is a perspective view per se of the yieldable gripping bar shown in Fig. 2 on a somewhat larger scale. The dotted indicationin the former view illustratesv the manner of turning the ends inwardly after Fig. 5v is a-perspective View on a'smaller scale I of the extruded parent strip from which the atof the article ap-J the bar has been applied to the v tion to the intervening ing application of" the holder to the jaw tending to inspring each of said walls into a snug vise gripping position.

Means is provided ,to maintain the applied gripping position of the holder, said means comprising providing an opening 9 extending longitudinally through said downwardly depending gripping wall in a downwardlyspaced parallel relation to said arched top wall 6 and to each of the opposite faces l0 and. I .l of said gripping wall 8, a half hard spring metal strip I2 (see Fig. ,4) being projected through said opening and having the outer protruding ends thereof deflected toward the face of the vise which said gripping Wall overlies to form wings l3 and I4 to grip the end walls of the vise jaw in a subjacent relation'to said arched top wall, said wings normally assuming an angle of less than ninety degrees in relaportion'of the strip as dottedly indicated in Fig. 4.

The stock from which each elastic work holder ishcut to the exact length to suit the particular jaw to which it is to be subsequently applied, consists of a parent strip of angular in cross section. as shown in, Fig. 5.

In the manufacture of the article the rubber is.

ingoperation. Thereafter said parent strip is out into the proper lengths preparatory to inserting and bending the metal strip l2 in the manner already stated.

In applying the work holder to the sides of j -each aw of the vise I8, as operatively shown in Fi l, the fingers of thehands springthe yieldable wings l3 and I4 outwardly as shown in the direction in which the arrows point in Fig. 4, the 7 rubber l5 acutely place, in a glove like fashion, the elastic walls;

after being fitted to the vise.

It will be seen from the construction just described that, owing to the elasticity of the material in general, as well as at the juncture of the gripping wall 8 and arched wall 6, said arched top Wall will also conform closely to considerable var-- iations in the contour of the top surface, of the vise.

The fact that the wings 1-3 and I4 normally assume an angle of less than ninety degrees in relation to the intervening portion of the strip makes possible the application of the holder to different vise jaws embodying variations in size and shape. i

It will be observed further that, aside from the advantages last pointed out, owing to the elastic or adhesive glove-like application of the holder to th vise while articles being worked upon are gripped, that the articles will be less likely to slip together with the holder when the artisans tools are being applied to the article, which would not result in the case of a metal to metal arrangement. Thus the shock absorbing quality, as well as the non-slip condition which is augmented by the elastic arched top wall, produces a device long sought for by the trade.

What is claimed is:

1. As an articl of manufacture, a vise lining rubber member acutely L-shaped in cross section having a tunnel extending longitudinally through one of its limbs in an inwardly spaced relation to each face and the free edge of the limb which it occupies, and a spring metal strip bendable after insertion to form at each end thereof a Vise gripping wing extending through said tunnel.

2. A jaw attachment for Vise jaws comprisin an elastic arched top wall to overlie the top surface of the vise jaw, an elastic gripping wall depending downwardly from that long edge of said top wall which is located nearest the gripping face of such jaw when said attachment is applied,

said gripping wall joining said arched top wall at an acute angle, the inherent elasticity of said walls along the line of' their juncture during application of the attachment to the vise jaw tending to inspring each of said walls to a vise gripping position, and means to maintain the applied gripping position of said walls, said means comprising a spring metal strip extending through a tunnel provided longitudinally through said downwardly depending wall in a spaced parallel relation to said arched top wall and the bottom edge of said dependin wall and in an inwardly parallel spaced relation to each face of said grippin wall, said strip being transversely deflectable at the outer ends thereof toward the face of the jaw which said gripping wall overlies to form wings to grip the end walls of said vise jaw in a subjacent relation to' said arched top wall, said wings normally assuming an angle of less than ninety degrees in relation to the portion of said strip intervening between them.

HERMAN P. FEST.

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