US1761988A - Wrench - Google Patents

Description

A. J. LAYHON .June 3, 1930.

. WRENCH Filed June 5, 1929 2 Sheets-Shget 1 INVENTOR.

June 3, 1930. A. J. LAYHON 1,761,938

' WRENCH Filed June a, 1929 2 Sheets-Shae? 2 IHIIIHIHH 1mm] INVENTOR Amfiwr Laykan Patented June 3, 1930 UNITED STATES PATENT OFFICE ARTHUR J. LAYHON; OI LOWELL, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO.

REUBEN DUNSFORD, OF CHELMSFORD, MASSACHUSETTS WRENCH Application filed June 3,

This invention relates to a wrench of the ratchet type and has for its primary object to provide, in a manner as hereinafter set forth, a, wrench of such type including as a part thereof a reciprocal element adapted to frictionally engage an object to which the wrench isapplied'when the latter is actuated in one direction and to release the object when the wrench is actuated in the opposite direction. i

A further object of the invention is to provide a wrench of the type aforesaid which is of simple and durable construction, positive and eflicient in operation, and which may be economically manufacture-d.

' With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more particularly de scribed. and as illustrated in the accompanyiiigdrawings wherein are shown several embodiments of the invention, but it is to be understood that the description and drawings are to be taken as illustrative and that the in- 'vention is intended to be limited only by the scope of the claim hereunto appended.

In the accompanying drawings in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a top plan of a Wrench in accordance with this invention.

Figure 2 is a longitudinal section thereof.

7 Figure 3 is a section taken on line 3-3 of Figure 1.

- Figure 4 is a section taken on the line 44 of Figure 1.

t Figure 5 is a perspective view showing the engaging and releasing positions of the nut engaging element in the operation of the wrench.

Figure 6- is a bottom plan of a modified form of wrench. Y

. Figure 7 is an elevation of the form shown in Figure 6. V

Figure 8 is a top plan of a further modified form of wrench.

Figure 9 is an elevation of the form shown in Figure 8. g r 7 Referring to the drawings in'detail, the

numeral 1 indicates the body portion of my 1929. Serial No. 368,120.

improved wrench which is of elongated form and provided adjacent its ends with circular openings 2 and 3 respectively. Formed in the wall of the opening 2, adjacent the innermost extremity of the latter, is a recess 4 which is of elongated formation and which gradually decreases in width from its outer end to its inner end with respect to the body portion 1. The inner end 5 of the recess 5 is located substantially midway between the sides of the body portion 1. A similar recess 6 is formed in the wall of the opening 3, adjacent the innermost extremity of the latter.

F ixedly secured to the body portionl, by means of a suitable staple 7 is an elongated tension element 8, the ends of which are offset at right angles to provide noses 9 and 10 respectively. The nose 9 extends transversely of the body portion through the recess 4 and the nose 10 extends transversely of the body portion through the recess 6.

The element 8is formed of resilient ma terial and is flattened for a portion of its length on either side of the steeple 7 to increase the resiliency of the element 8. The flattened portions are indicated atT11. The tension element 8 is so disposed as to normally maintain the noses 9 and 10 at the inner ends of the recesses 4 and 6 respectively. The flattened portions 11 are disposed with their narrower dimensions extending in the direction of travel of the noses and with their wider dimensions extending at right angles to the narrower dimensions.

In the embodiment illustrated in Figures 6 and 7 the body portion 12 isformed at one end with a circular opening 13, the wall of which is provided with a recess 14 which is similar to the recesses 4 and 6 heretofore described. In this form, the tension element 15 is in the form of an arcuate rod, one end of which is right angularly offset for extension through the body portion 12 whereby the rod is pivotally connected with the body portion. The'free end of the offset portion is upset as indicated at 16 for maintaining the rod and body portion in assembled relation.

The oppositeend ofthe rod- 15 is right angularlyofis'et to provide a nose 17 which corresponds to the noses 9 and 10 heretofore described. The nose 17 is normally maintained at the inner end of the recess 14 by means of a coiled spring 18, the respective ends of which are secured to the nose 17 and to the outer end wall of therecess. 14:. v H

In the embodiment, illustrated in Figures 8 and 9 the bodyportion 19 isof elongated, tapered formation and is formed at its Wider end with a circular opening: 2.0 having. its.

wall formed withiaflrecess 21which; corressponds to the recesses 4, 6- and 14; heretofore described. The end face of the body port-ion" 19, at the smaller end of the latter, is formed with a notch 22 for the reception therein of a" tension element 23. The-tension element. 23,.

right angularly offset hook member 27 which bears against an edge face of the-body portion 19. The tension: element 23 is formed of re-.

silient. material and normally maintains the nose 25 at the inner end of the recess21. The end portion 2 4 of the tension element is" flattened as indicated at 28 to provide such end portion with increasedresiliency. V

In the operation of the embodiment ofv my invention illustrated in Figures 1 to 5,, the;

body portion is applied to. an object. such as a nut 29 with the latter extending through the opening 2: when it is desired to rotate the ob-. ject in a clock-wise direction. By swinging the opposite end of the body portion inan arc It is thought that the many advantages of a wrench in accordance with this invention will be readily apparent, and 'althoughthe.

wrench will preferably be constructed in ac cordance with theembodiments herein illus- T -d. an idescribi it'is t he -unde that various changes in the details of construction may be resorted to,"so long as such changes fall within the scope of the invention asdefined-in the appendediclaim'... 1 1 V .Wh at Iclaim'is:

A wrench comprising, a body portion formed adjacent "one end with a circular opening, the wall of said opening being formed a with an elongated'recess decreasing in width from one end. to. the other,. and; an elongated, resilient element fixedly secured at one end to the body portion and having, itsother end formed; with a nose extending through said recess; and projecting into said opening, said element being undera lateraltension to normally maintain the nose at the narrower'en'd' ofi the recess and further being'circul'ar' in cross s section and having a portion of its length flattened to provide such portion with relatively wide. and narrow dimensions extending at right angles to each other, said I relatively narrow dimension 'extendinginthe direction of travel of the nose to increase the operative resilieneyfof the. element. j

;In testimony Whereof', I aifi'xf signature hereto. V

ARTHUR J.- "L YH N."

in'aclock-wise directionthe nose, 9 is-wedged. 7

between the wall of the recess 4 and the per riphery of the object 29 to. frictionally engage the latter. Uponswinging the opposite end of the body portion in a counter-clockwise direction, the nose 9 will be moved longit.udi-. nall-y of the recess t against the tension ofthe element 8 whereby the body portion will be. permitted to turn, relative to the object 29.. Ifit is desired to rotate theaobject. 29 in a counter-clockwise direction, the body portion 1 may be inverted or. may be ,applied'to the object with the latter extending through the opening 3. Prefer-ably the openings 2 and 3 willbeof difi'erent' diametersin order to adapt the-Wrench for use in connection with objects of different sizes] In the embod'ments illustrated in 6 .to 9 the operation is the same as above described when it is desired to. rotate anobject in a clockwise direction. I Whenit is desired to rotate theobject in a counter-cloclz-wise direction the body portions 12 and 19"respec tively are inverted.

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