US1409510A - High and low speed wrench - Google Patents

Description

'w. F. ADAMS.

HIGH AND LOW SPEED WRENCH.-

APPLICATION FILED APR=18,192|.

1,409,510. Patented Mar..14, 1922.

lztveni'or.

FVaZt'ev EA UNITED STATES EATENT orrice.

WALTER r. ADAMS, or Los AneEnns, mmomm.

IGH Ann Low mes wnnncn.

Application filed April 18, 1921. Serial No. 462,094

and'useful High and Low Speed rench,

of which the following is a specification.

This invention is applicable to wrenches of various kinds including socket wrenches, screw drivers and'braces for operating bits of various kinds, and the principle of theinvention applies more particularly to the construction of the handle for turning the tool tip which is to engage the object to be wrenched, as a nut on a bolt, a head of a bolt, a head of a screw or the shank of a tool such as an anger or any other form of bit.

In operating a wrench for revolving objects such as screws, nuts, bolts, etc. which have to be turned round and round on the axis by a wrench as a socket wrench or a screw driver or other device of a like character, considerable power is usually required at the beginning of the operation of loosening the parts or at the close of the opera tion of tightening the parts, and an object of this invention is to provide a practical wrench brace device by which long leverage with low speed is applied through one part of the appliance when considerable force is required as in seating and starting'nuts, and

for starting and inserting heavy screws, and

high speed with small leverage is available through another part of the operation.

The invention is broadly new, basic and pioneer in that I provide a wrench handle 7 practically operable after the fashion of a brace and bit, comprising an engaging end and a stationed handle co-axial therewith connected through two handles that are ec-' centric to the axis of the stationed handle and of different radii relative to each other so that'when power is required, the handle of longer radius can be used, and when high speed of revolution is desired the eccentric handle of lesser radius is employed.

An object and advantage is, greater facility and speed for loosening and tightening elements that are capable of beingv loosened and tightened by rotation on an axis. 7 I 1 Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detail description and the appended claims.v

Specificationof Letters i aten-t ,Patente'd Mai-.14, 192 2.

The accompanying drawing illustrates the invention. i i

Figure 1 "is a view of the invention applied to a conventional'brace.

Fig. 21s a, yiew analogous to Fig.1, s ing the invention as applied in a: simpler form. 1

Fig. 3 is a fragmental view showing the end of the" socket wrench illustrated in Fig. at is a; fragmenta1' view, of a screw" driver up when my beem lb ed with. a"

handle constructed 'n-ac'cordance with the form shownin' Fig. 2.

The stationed handle 1 may be of any desirable, form and is shown as a knob which may or may not be swiveled on the axially extending handle tip 2 of the appliance. 3 is the axially extended tool tip or terminal of said handle; said terminal may have any deslred form of tip as the chuck it, socket wrench 5 or the screw driver 6. Between the'handle tip 2 and the tool tip 3, the handle is provided with two eccentric handles 7 and 8 connected to said tips and to each other by the radius arms 9 and 10 and the intermediate limb 11, so that when the stationed handle 1 is held in position and the wrenching'device is engaged with the object to be turned; it considerable power is required for turning the wrenching device,

as at the'starting of a nut or bolt or the In practical operation the handle will be I held after the manner of the ordinary brace and bit, the knob or stationed axial handle 1 being held true, with the tool engaging the nut, screw or other part to be revolved.

great power by grasping the high power handle 8 and swinging it around and around as with the use of an ordinary brace and bit.

When it, is feasible to spin or rapidly relvolve the element being turned, the high speed handle7 of shorter radius is revolved. This can be done with high speed, thus v greatly facilitating the wor The axes of the eccentric handlesare par- 7 allel to the axis of the tips 2 and 3 of said lThe tool may be turned slowly and with appliance. Both radius arms 9 and 10 preferably are located on the same side of the axis of the tips 2 and 3 and the handle 7 of shorter radius is between the stationed handle 1 and the handle 8 of greater radius, so that in practical use the handle of less radius does not interfere with the operation of the handle of greater radius.

The eccentric handles 7 and 8 may or may not be provided with grips'? and 8 journaled thereon.

By mounting both handles on the same side of the unitary axis of the tips 2 and 3, the tool is given a practical condensed form and is very simple in construction and operation.

I claim:

1. A wrench handle comprising two coaxial tips and intermediate eccentric handles, the axes of which are parallel to the axis of the tips; said parallel handles being connected together and with the tips by radius arms of difierent lengths.

4- A revolving wrench having two 00- axial. tips and a plurality of intermediate eccentric handles having radii of different length, and connected to saidtips by radius arms.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 9th day of April, 1921. e

WALTERF. ADAMS. Witness: I

JAMns R. TOWNSEND.

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