US890775A - Wrench. - Google Patents

Description

No. 890,775. PATENTBD JUNE 16, 1908. V J. P. LANSING.

WRENCH. APPLIGATIOR FILED DEC. 12, 1907- 2 smzriws snm 1.

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WRENCH.

Specification of Letters Patent.

Patented June 16, 1908.

Application filed December 12, 1907. Serial No. 406,163.

To all whom it may concern: j Be it known that I, JAMEs F. LANsINe,'a citizen of the United States, residing at Fall River Mills, in the county of Shasta and State of California, have invented certain new and useful Improvements in renches,

of which the following is a specification.

This invention relates to wrenches, andj more particularly to ratchet wrenches and has for an object to provide a wrench of this character which will be simple, positive in its action, and quick in its adjustment.

Other objects and advantages will be ap parent from the following description and it will be understood that changes in the speci'fic structure shown and described may be j made within the scope of the claims without departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar views, Figure 1, is a side elevational view of the present wrench, Fig. 2 is a vertical longitudinal sectional view, Fig. 3 is a erspective view of the dog, Fig. 4 is a simi ar view Referring now more particularly to the drawings, there is shown a wrench 10, and this wrench consists of a stock ll, and a fixed head 12. The stock 11 is provided with a plurality of substantially V shaped teeth 13, which are located upon the inner face of the of a further modified form. 1

stock. A sliding jaw-head 14 is arranged with a portion engaging the stock 11, and

this head is provided with a depending shank 15 whichis disposed adjacent the teeth 13, which are formed upon the stock 11. The shank 15 is arranged with its inner edge in s aced relation with the teeth 13, and the s ank is provided with a assage 16 which opens at one end outwar ly of the shank, and at the other end this opening enterstowards the teeth 13. A dog 17 is arranged in the passage 16, and this dog is mounted upon a pivot screw or pin 18 which is arranged in' the walls of the shank 15. The dog 17 is provided with an inwardly directed nose 17 which projects toward the teeth 13, and at the inner end, this nose is beveled as shown at 19 for engagement at times with the teeth 13. The dog 17 is further provided with a thumb enga ing lip 20, and this lip is located outj warddy of the passage 16, as shown. A fiat leaf spring 21 is secured within the passage j 16 and upon the lower portion thereof by a fastening screw 22, and this spring is thus arparts in the several ranged to hold the nose 17 with its beveled end 19 in engagement with the teeth 13.

Disposed beneath the sliding head 14, there is shown a guide block 23, and this guide block is arranged with a portion 24 engaging the stock 11, and this portion of the block is held to the stock by means of a screw 25. The block 23 is extended outwardly as shown at 26, and in this portion 26 there is formed a vertically disposed passage 27, and. this passage is thus arranged to receive the shank 15 of the sliding jaw 14. The guide block 23-is slotted as shown at 28 upon its upper face, and the lower wall of this slot is inclined as shown at 29.

Normally the dog 17 lies at an angle and with the beveled end 19 of the nose 17 engaging the teeth 13 of the stock 11, and when it is desired to shorten the space between the fixed jaw 12 and the sliding jaw 14, the shank 15 is pushed upwardly, and in this movement of the shank it will be seen that the beveled end 19 of the nose 17 will become disengaged from the teeth 13. It will of course be understood that the lip 20 of the dog 17 may be also moved upwardly to disengage the beveled end 19 of the nose 17 from the teeth 13 when a greater adjustment of the jaws 12 and 14 respectively is required. The lower edge of the nose 17 is on the same angle as that of the lower edge 29 of the slot 28, and it will thus be seen that the nose 17 may engage the teeth 13which are located at the lower end of the stock 11 and within the slot 28.

From the description, it will be seenthat a simple, cheap and effective wrench is pro vided. and by means of the dog 17 which is arranged for engagement with the teeth 13 .of the stock 11 it will be seen that the jaws 12 and 14 respectively may be quickly ad justed. Upon upward movement of the shank 15 or upon manipulating the lip 20, it will be seen that the beveled end 19 of the nose 17 is forced away from the teeth 13, but upon downward movement upon the jaw 14 the action of the dog 17 will of course be reversed and the beveled end 19 of the nose 17 will be securely engaged with the teeth 13.

In the form of my invention shown in Fig. 5 the jaw 14 has its shank 15 arranged for movement in a handle A secured to the stock 11 as shown at B. The handle A at its upper end is provided with a metallic band C. In this form of my invention the dog 17 is connected with the shank 15 in a manner similar to that shown in the invention.

What is claimed The combination said guide block havin tween the stock an slidably engaged W preferred form of my with a stock having a l versely extending teeth l a fixed head at its upper lock secured to the stock ge ad j acent its outer end, I

d said passage, of a jaw g a slot located be- I ith the stock and having I a depending shank disposed in the passage formed in the guide block, and a spring pressed pivoted dog carried by the sliding jaw, engaged with the teeth of the stock. 1

In testimony whereof I afiiX my signature, in presence of two witnesses.

JAMES F. LANSING.

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