US1388029A

US1388029A - Wrench

Info

Publication number: US1388029A
Application number: US443968A
Authority: US
Inventors: Richard H Dimock; Sheaver Joseph; Wyskocil George
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-02-10
Filing date: 1921-02-10
Publication date: 1921-08-16
Anticipated expiration: 1938-08-16

Description

STATES wnnivoii. Y j' 1 p seams of ters ,B s l -i seaweedrams 10, 1921. Serial No. 443,9si

To all whom it may concern .1

Be it known that we,RIoHArn H. DIMOCK, JOSEPH SHEAVER, and GEORGE VVYsKooIn, citizens of the United States, residing at Cedar Rapids, in the county of Linn and State of Iowa, 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.

This invention relates to wrenches of the adjustable, angle-jaw type, and the object of the invention is to produce a wrench of this type in which the adjustment of the jaws for difierent sized nuts is effected in a simple manner, and by the turning of the wrench handle.

The invention is fully set forth and claimed in the description and claims following, reference being had to the accompanying drawing, in which a Figure 1 is a side view of the wrench, the fixed jaw being shown in section. Fig. 2 is a fragmentary elevation of the wrench as seen from the left of Fig. 1. Fig. 3 is a plan view of the movable'jaw, as seen from the wrench-handle 'grees degrees,

under (handle) side. Fig. 4 is a plan view of the conical scroll which engages the movable jaw. Fig. '5 shows a central section of the same, and a fragmentary section of the fixed jaw transverse thereto.

' In the drawing, the numeral 5 denotes the jaw which may be designated as the fixed jaw. This is mortised at 6 to receive the shank? of the movable jaw 8. This shank is here shown as formed with lateral, parallel ribs 9 which fit slidably in corresponding grooves 10 of the mortise, and serve to guide the movable jaw and hold it in true working position. The depending portion of the shank, 11, is formed as a rack, having teeth 12, preferably somewhat crescent-shaped, as shown in Fig. 3 to mesh with a spiral scroll 13 attached to the 1 1. As the handle stands at an. angle to the rack of less than 90 deas shown), the scroll is formed as the frustum of a cone, and but one side of its spiral thread 13 engages the rack. The scroll is held in such engagement by shoulders 15 of a hole 16 in the fixed jaw. At right-angles to these shoulders is a hole 17, preferably tapered, to give added gives a vise-like grip on the nut.

strength to the handle, to receive the tapered shank 18 of the handle. In practice the scroll is screwed on the threaded end 19 of the handle, and secured against unscrewing by a pin 20. The scroll is shown to project a little beyond the faces of the fixed jaw, as it may do without interfering with the action of the wrench in close places,

PATENT OFFICE. Brennan I a. aosnrier iiivn enonGE: wxskoorn, or QlElDAR. RA-rins,

.Qrate ntea luggie, 'ieziiand the periph- I cry of the scroll being milled, the handle may be turned thereby, by the use of a thumb or finger.

The advantages of an angle-j aw wrench, in I turning nuts in a limited space for the movement ofthe handle, are well-known and universally recognized. This wrench has the further advantage of enabling the operator to draw the jaws up tightly on the nut by turning the handle, the action of which This is especially convenient and desirable in the restricted spaces of automobiles and other machinery, where the operator must work practically at arms length in some cases, and with only a grasp of the wrench near the handle end. o

Having thus described our invention, we

claim 1. In an angle-wrench, a fixed jaw mortised to receive the rack-toothed shank of a movable jaw, a movable jaw having a shank at right angles-to its working face, and fitting said mortise, a handle inclined at less than ninety degrees to said shank, and provided with a conical, spiral scroll engaging said shank.

2. In an angle-wrench, a tised at right angles to its working face, a movable jaw with a rack-toothed shank shdable in said mortise, a handle revolubly mounted in the fixed jaw at less than a right. angle. to said shank, and a conical spiral scroll attached to said handle, andengaging at one side the rack-teeth'of said shank.

8. An angle-j aw Wrench, comprising a fixed jaw mortised to receive the shank of'a parallel-faced movable jaw, and havingan adjacent hole to receive a scroll, with retaining shoulders therefor, and a communicating hole for the shank of a handle, a'movable jaw having a right-angled rack-toothed shank slidable in the mortise, a handle revoluble in the fixed jaw, and a conical scroll attached thereto, and engaging the shank of the movable jaw. V

.4. In an angle-jaw wrench having ,a fixed jaw, a movable jaw slidable transversely In testimony whereof we alfix our signa- 10 thereof, and rack-toothed for engagement tures in presence of two witnesses.

with a scroll, a handle mounted revolubly in 7 w the fixed jaw and inclined to its nut-engaging 5 face, and a eonicalseroll screwed on the end of GEORGE WYSKOGI'L the handle, and engaging the rack-teeth at one side, the fixed jaw having a hole to receive Witnesses: the scroll, and shouldered to hold it'in en- J M. ST. JOHN, gagement With the rack. V O. A. KEARNEY.