US805406A - Wrench. - Google Patents

Description

l PATBNTED Nov. 21,1905. s. s. BOLSINGBR & J. M. BOWEN.

WRENCH.

APPLICATION FILED JUNI: 20,1905.

UNITED STATES SAMUEL s.-BoLsINGER AND PATENT OFFICE.

WRENCH.

lSpecification of Letters Patent.

Patented Nov. 21, 1905.

Application filed June 20, 1905, Serial No. 266,154.

To all whom, t may concern:

Beit known that we, SAMUEL S. BoLsINGER and JOHN M. BOWEN, citizens of the United States, residing at Brockway, in the county of Douglas and State of Oregon, have invented certain new and useful Improvements in Wrenches; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to wrenches; and it has for its object to provide an improved wrench which shall be sim ple of construction, cheap of manufacture, durable, and easily adjusted by the hand grasping the same.

The invention consists in the features of construction and combination of parts hereinafter described, and more particularly pointed out in the claim concluding this specification.

In the accompanying drawings, illustrating the preferred embodiment of our invention, Figure 1 is a sideview of a wrench made in accordance with our invention, the handle being shown in section. Fig. 2 is an upper edge view of the wrench; and Fig. 3 is a broken sectional view on the line m of Fig. 2, showing the arrangement of the pawl and its spring between the extended arms of the movablejaw frame.

While the preferred embodiment of our invention is shown in the accompanying drawings and its construction and operation is described in this specification, theright is reserved to make such changes from the construction shown and described herein as the scope of the claim hereto appended will permit.

said fixed jaw and is provided with a springpressed pawl adapted to engage the teeth on said shank and has an operating-lever extending well forward of the portion of the jaw to which it is pivoted. l/Vhen the handle is grasped by the hand, the operating-lever can be depressed and the movable jaw adjusted by the thumb of the same hand without loosening the grasp thereof on the handle.

Referring more particularly to the drawings, 1 is the shank of the fixed jaw, 2 is the head or jaw proper, and 3 is the wooden handle, mounted around the tapered end 4 of said shank between the collars 5 and held in place by the nut 7. The teeth 8 on the upper edge of the shank are adapted to be engaged by the pawl 9, carried by the movable jaw 10. Said pawl is p ivoted between rearwardly-extending arms 11 of the movable-jaw frame, between which is also arranged a cross bar or band 12 of the solid metal forming the upper wall of the slot for the passage of the shank. Said bar or band 12 preferably does not extend the full width of the arm or extensions 11, but leaves a space 13 between said arms, in which the tooth-engaging 'end of the 'pawl is housed. Said tooth-engaging end of said pawl is arranged generally at right angles with the shank and is preferably provided with two or more teeth 14. When said pawl engages the teeth on the shank, it also bears against the bar or band 12, so that the movable jaw is held firmly and cannot give or spring back. The operating -lever 15 normally extends about parallel to the shank, and to its outer end is secured the spring 16, which extends downward and bears upon the bar or band 12. The upper surface of said lever is preferably milled or roughened to prevent the thumb from slipping thereon.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

In a wrench, the combination with a fixed jaw having teeth on the upper edge of its shank, and a movable jaw mounted to slide on said shank, having an angular bracket extending along the under edge of the shank of the fixed jaw and thence branching. into two arms extending across said shank at opposite sides thereof, said arms projecting beyond the upper edge of said shank and provided with a cross-piece, of less width than said arms, ar-

ranged just above said upper edge, a pawl In testimony whereof'weaxour signatures plvoted between the extensions of saiol arms 1n presence of witnesses.

and comprising a tooth-engaging portion nor- SAMUEL S. BOLSINGER. mall;7 arranged at right angles to said shank JOHN M. BOWEN.

5 and adapted to abut against said eross-peee NVitnesses for Samuel S. Bolsinger:

when in engagement with said teeth, and a LOUIS BARZEE, lever portion extending parallel to Said shank E. L. CANNON. toward the fixed jaw, and a spring secured to Witnesses for John M. Bowen: said lever at one end and bearing at the other GEO. W. BOWEN,

IO end upon said cross-piece between said arms. J. Gr. BOWEN.

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