US1776928A - Screw driver - Google Patents

Description

Sebt. 30, 1930. Q -w PQTTS 1,776,928

scam) DRIVER Filed Sept. s, 1929 0- M P01 215. INVENTOR.

A TTORNEYA' Patented Sept 30, 1930 v if p UNITED STATES PATE T. OFFICEQ;

OLLIE w. rows, or rinwronnxn n'rnoxv i l l V SCREW nmvnn' i Application filed September 3, SeriaI N0. 390,( )98.

This invention relates to tools and more coreor filler 4 which maybe formed of wood, particularly to a screw-driver. One object of 'metal, or a suitable composition. This core the invention is to provide the screw-driver has a rounded rear end'as showninFigure 1 with a handle so mounted that it may be disand tapers forwardly andfalsdhas itsside U posed either longitudinally or transversely of faces curved longitudinally and transversely 55 the shank and blade and thereby allow the as shown in Figures 2 and 3 so that it may screw-driver to be used in the usual manner he firmly gripped without cutting into a perwith the handle extended'longitudinally of sons hand. A. strip of flat metal is bent inthe shank or adjusted to dispose the handle termediate its length to form a binding 5 transversely of the shank in order to allow having an arcuate portion 5 extending about 0 a firmer grip to be obtained and greater the rear end of the core and side portions 5 leverage exerted in case it is diflicult to loosen extending in converging relation to each or fully tighten a screw. other and in front of the core are bent to Another object of the invention is to proform parallel portions 6 which fit flat against vide the handle with jaws adapted to firmly opposed faces of the fiat rear end portion 3 e5 grip the shank of the screw-driver when the of the shank where they are pivotally secured handle is disposed longitudinally thereof but by a rivet or equivalent fastener 7 The end at the same time allow the jaws to be easily portions of the strip form arms 8 extending forced out of gripping engagement with the in diverging relation to the shank and conshank when it is desired to move the handle stituting shoulders having approximately the '10 to a position transversely of the shank. same shape as the converging portions 5 after Another object of the invention is to so which the ends of the strip are bent towards form the handle that it may be firmly gripped each other to form converging jaws 9. These and pressure exerted when it is disposed lonjaws normally terminate close to each other 1 gitudinally of the shank without injuring a and at their ends are notched or recessed to 75 persons hand. form seats 9 adapted to receive the opposed The invention is illustrated in the accomcorners of the shank. panying drawings wherein l/Vhen the screw-driver is in use the handle Figure 1 is a view in side elevation show will usually be disposed longitudinally of ing the handle disposed longitudinally of the the shank and in View of the shape of the g0 shank, e V handle it may be firmly gripped with a thumb Figure 2 is a similar View showing the hanand finger bearing against the arms 8 and dle disposed transversely of the shank, and pressure applied without injuring a persons Figure 3 is a sectional view taken along the hand. The jaws very firmly grip the shank line 33 of Figure 1. and since corners of the shank are received This improved screw-driver includes a in the notches or recesses 9 the handle will shank 1 formed of steel or other strong metal. not be liable to accidentally move out of its This shank ma-y be of any length desired and position shown in Figure 1. If it is found is rectangular in cross section for practithat aflscrew cannot be easily loosened or 40 cally its entire length. The forward end of fully tightened the handle may be swung the shank is flattened from opposite sides to about the pin 7 until. it assumes the position form a blade 2 and its rear end portion is also shown in Figure 2. It can then be used with flattened from opposite sides as shown at 3. either one or both hands gripping the handle It will thus be seen that the shank and blade and a leverage exerted not obtainable when consist of a single bar of metal and that since the handle is in the position shown in Figure it is rectangular in cross-section it will be 1. .If so desired the core 4 maybeomitted provided with opposed corners, as shown in and the U-shaped portion of the blndlng used Figure 3. as a handle. 7

The handle which is pivoted tothe flattened Having thus described the invention, I 50 rear end of the shank is provided with a claim: 7

A screw driver comprising a bit having a shank provided with a blade at its outer end and having longitudinally extending opposed corners, the rear end of the shank being flattened, a stiff elastic looped strip forming a handle having an arcuate end and side portions converging forwardly, said strip having parallel portions bearing against opposed faces of the flattened rear portion of W said shank and continuing in arms diverging forwardly from the parallel portions to form shoulders of approximately the same slope as the handle, then converging and terminating in jaws opposing each other and adapted to grip the shank, said jaws being formed with notches to receive the corners of the 'shank,"anda pivot passed through the parallel portions of the handle and flattened rearend of the shank to pivotally mount the shank.

90 In testimony whereof I aflix my signature.

OLLIE W. POTTS.

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