US1020141A - Screw-driver. - Google Patents

Description

W. C. GORDON. SCREW DRIVER.

APPLICATION ULEB 11017.14, 1910.

1,020,1JLLu Patented Mar.12,1912.

J. WILDER, F NORWooD, MA'ssnoHUsnte'ljs.`

scnnw-nmvsa.

1,020,141. Specification of Letters Patent. lllztntpegl Igny-f 12,

inruilen STATES PATENT wALDo c. GL eDoN, or BOSTON; MASSACHUSETTS, essionon or ONE-Haar 'ro nement;

Application tiled November 14, 1910. Serial,l No. $2,228.

. To all whom it 'may concern:

XVALDo C. Gonoox, a citizen of the United States, residing at Boston, in the county of Sutl'olk and State of Massachusetts, have invented new and useful Improvements in Screw-Drivers, of which the following iS a specification.

This invention relates to screw-drivers. More particularly it relates to Screw-drivers adapted for turning a screw which is set in a. position to which access by a tool held in the line of the axis of the screw is ditii# cult, or Set so that a half revolution cannot Be it known that I,

-be attained by one stroke of the screwdriver. i Y

It is the object of the invention to ine prove upon devices heretofore known for this purpose.

It is also 'an object of the invention to produce an improved tool having the other advantages of that herein shown and described.

In' the accompanying drawings, which illustrate an embodiment of the invention,l

Figure 'l is a side elevation of the tool; Fig. 2 is a plan; Fig. 8 is an end elevation; and Fig. 4 is an elevation in section on the line 4 4 of Fig. 2.

In a. preferred embodiment of the invention the entire tool may be made from a single piece of met-al in which` as repre- Sent-ed in the drawings, there is a shank or body portion 10, which constitutes the handie. There is at', one end of the handle a head l1, running across the handle and having two bits l2, lI-l, integral therewith; and thercis atthe other end of the. handle a bit arranged in the line of the handle and constituting an ordinary screw-driver. '.lhe head 11 may be considered as a broadened continuation ot' the handle at an angle thereto. Tho edges of the blades or bits l2, 13, liel in the same plane and this plane is so related to the handle that the line ot tho handle makes an angle of 45 with the plane asshown in `Fig. 2. The bits edges are pre1'- erably parallel to each other` and conse quently are horizontal when the handle is horizontal as shown in Fig. l, on opposite sides` of the handle..

W ith a tool constructed as thus described it'. is possible to reach into a corner and turn a screw set so close therein that it cannot. be engaged byl a screwdriver held in the 'ha-nd vertically above it in the ordinary way,

and where there is not room to make a half turnJ at a stroke. I

The operation is as follows: Holding the implement in the hand, one of the bits-1s inserted in -the slot in thescrew and the handle is turned as fai.' as possible. `rlhen the bit is removed from the slot,'and while rernoyed the implement is lturned about the longitudinal line of the handle as an axis, and is also swung back toward the other wall, turning about the axis of the screw. The first glotion described iresults in present-ing tothe screw the other -bit at the head end, with its edge running at right angles .to .the line'in which the slot was leftbythe first bit. The' second described movement, in which handle swings back to ,the other wall, turns the bit 90. vIt can .then be engaged in the' slot. The working stroke Atl'nin occurs, the implement being swung ,as far as it can U0 about the axis of the screw. I screw 90, assuming .the 4corner to bea right angle. By .repeating this operation 'the screw may be turned in successive strokes ot'. 30 each. This operation is ettected with a convenience .not heretofore ,-known, for the motions described are such that' the tool is held conveniently and continuously in the hand, without removingthe heed of the instrument fromthe'immediate vicinity of the head of the screw. In that way no manipulation or movement is required in addition to the normal movement required for rotat in er the screw, excepto simple and easily ,ellen-ted rotation ot' the tool on its own handle-axis duringthetime -whcn it is inomentarily lifted from the screw --head in order to get a vresl'rhold.

'.lhe. formation of the tool in the peculiar shape shown, in whirh there is n relatively long straight handle with a head at one end rn'ojecting at right angles thereto in both directions, and with a bit project-ing Ifrom the handle at the otherrnd` makes a tool pei'zuliarly adapted for universal use as a screw-driver. When used to drive screws in the ordinary way, thehead ll is held in the hand, the bit. is applied to the screw, and the head furnishes a broad and convenient grip and rest. on which the palm otl the band may press. to torce the screw with the full pressure desired; while when used forserews in the cxtram'dinary situations above described, in which the head- 11 is n otheld in the hand, the end ltwhich is held in or near roo the. palm of the hand, having no projections, presents no obstacle to free and easy rotation of the tool on the aXis of its handle Whileheldixlthehand. '7

I claim A screw driver, comprising a bar havingv at one-end a bit-edgefadapted toengage in the slot of a. screw and extendingperpendicular tothe longitudinal dimenslon of the bar; having at the other end ahead extending perpendicular to the longitudinal dinnension of the bar, said head having two bit-edges on opposite sidesf of said bar, each in plane parallel lo Said longitudinal dimenslon of tllebar and both in a single plane makingAforty-ive degrees angle wlth said lon `tudinal dimension of .the bar; the said hea lying in the last mentioned plane and forming a' handle by which the said bit-edge may be turned. 1 Signed by me 'at Boston, Ma'f' 's 10th WALDO C. GORDON. Witnesses1- v HERBERT J. WILDER, EvERE'l'r E.- KENT.

dayv of ITovember,l 1910.

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