US1816968A - Wrench - Google Patents

Description

Aug. 4, 1931. w. .1, GREUTMAN TAL WRENCH Filed March 20, 1931 BY my ATTORNEY NIW.

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Patented Aug. 4, 1931 UNrrED As'rATiazs WILLIAM J. GREUTMAN, CHARLES A. SHOOK, AND' MAX F. BRANDT, 0F MILLER, NEBRASKA v WRENCH f Application filed March 20, 1931. ySerial No. 524,130.

Our present invention has reference to a ratchet nu't wrench and among the objects in view is to provide a simple, cheaply constructed wrench for this purpose which is ,.c. designed for general use and in whichthe d ratchet wheel connected with the socket of the wrench is engaged by one of two ends of a dog, and the pivot for the dog being provided with a swingable'handle to which w is attached a spring,whereby either of the active ends of the dog bebrought to engage with the ratchet wheel so that a nut or the rlike received in ther socket' of the wrench or in a socket member attached to u, the wrench may be easilyand quickly screwed home or unscrewed without necessitating the removal of the wrench from the nut or bolt.

lTo the attainment of the foregoing the invention'consists in' the improvement hereinafter described and definitely claimed.

In the drawings:

'Figure l isa top plan view of a ratchet wrench in accordance with this invention.

Figure 2 is a similar view with parts broken away and parts in section.

Figure 3 is a side elevation thereof with parts broken away.

. The lever or handle l of the improvement is provided at one Vof its ends with the usual spaced plates that form the said end of the lever with a bifurcated head 2. Thev head plates are heldin spaced relation by bolts or like elements 3 and there is received 35 in the head the usual toothed wheel 4l formed with oppositely extending rounded portions that pass through rounded openings in the head 2, the rounded portions terminating in sockets 5 and 6. respectively. The bore of 4G the socket 5 is preferably of hexagonalformation whilethe outer end of the cross sectionally rounded member 6 has its open end rounded inwardly to provide the same with a squared opening 7. Passing through the part 6 above the-opening 7 there is a double headed rod 8, and whereby the socket members maybe turned by` hand-if desired. Of course, removable sockets are designed to have their Shanks received in the bores of the sockets 5 and 6 so that the'wrench may be employed. for different sized nuts on the heads of bolts.

Between the members comprising the head' there is pivotally mounted a substantially U- shaped dog 9 whose ends are shapedto pro- '55"' vide the same with teeth 10, respectively. The teeth constitute' theactive ends of they dog. Secured to the center of the dog and journaled in bearing openings in the head 2 of the lever there is a cross sectionally round- 00 ed pivot member 11, one end ofk which projects through one side ofthe head, and this projecting end is bifurcated7 as at 12. There f is receivedin the bifurcated portion l2 of the pivot ll one end of an angle arm 18. 7 The 35 pivot-'11ifor the angle arm is preferably removable, and securedto the inner face of the outer portion of the arm there is one endof a y helical 'spring l5, the second end of which being secured to an earor like element 16 on the handle or lever adjacent to the juncture of the head therewith.

By swinging the angle arm 13 on its pivot 14 to either side of the head the spring l5 will turn the pivot and likewise turn the dog 75" 9 to bring either of its active ends or teeth 10 into engagement with the toothed wheel 4; so that a nut or like device engaged by the wrench may be turned in either or in both directions without removing the wrench therefrom. The slidable rod or handle 8 may be employed for turning the wrench without the necessity of rocking or imparting an oscillatory movement to the lever l, but obviouslyk the rod 8 cannot be employed for screwing a nut or bolt fully home but will materially facilitate the starting of such nut or bolt before the same is screwed entirely home.

It is believed the foregoing description when read in connection with the accompanying drawings will fully and clearly set forth the advantages of our improved device to those skilled in the art to which such invention relates so that further detailed description will not be required. Obviously we do not wish to be restricted to they speciic structure herein shown and described and, therefore, hold ourselves entitled to make such changes therefrom as fairly fall within the scope of what we claim.

Having described the invention, We clzaiin: vl. A lever having a bifurcated end providfing a head, a toothed wheel having rounded portions extending1 therefrom and the opposite sides thereof journaled through the head and sockets proj ectingfroni said round` ed portions, asubstantially U-shaped dog having its ends foi'nied'with teeth arrangedV between the head, a pivot to which the dog is secured journaled through the head and having one of its ends bifurcated, an angle arm pivotally secured in the said bifurcation and a coiled pressure spring secured to the angle end of the arni and to the lever at its :juncture with the head.

ing a head, a toothed wheel havingrounde'd portions extending therefrom and the opposite sides vthereof journaled through 1 the head and sockets projecting from said roundrfedv portions7 a vsubstantially U-shaped dog ,having itsends formed with teeth arranged between the "head, apivot to which the dog v is secured'journaledpthrough the head andv havingy one of tsvends bif'urcated, an 'angle arm pivotally secured in the said bifurcation y and a coiledpressure spring secured to theV angle end of the arin and to the lever at its juncture with the head, spacer elements for the bifurcated head, "and a double headed rod slidably associated with one ofthe sockets.

In'testiinony whereof we our signatures. V jj WlLLI'AM- J. GREUTMAN. 'CHARLES' A. SHOCK. MAX-F.V BRANDT.

2. A lever havingy a'bifurcated end provid# n

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