US910890A - Wrench. - Google Patents

Description

J; `I'.y WRIGHT. WRENCH.

nnlonlon rmzn nov. 18,1901.

Patented Jan. 26, 1909.

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"wil `un HUH l *of which the following UNITED sTATEs PATENT OFFICE. was r. meer, or mainmise, marshman.

wensen.

spammen crimen .Patent Annina nlm mmanis. im. anni so. satana.

Patented Jan. 26, 1909..

delpha in the county of Philadelphia and' rack State Io Pennsylvania, have invented certain new 'and usefu lmprovnentsin Wrenches',

' a specication.

This'invention. oomprehends `certain new and useful improvements in that class of wrenches that are opened or closed by -a sliding adjustment effected through the instrumentalit of a rack formed integrally with the sha and a spring seated movable jaw frame carry' g a dog rigidly connected therewithfand designed for lookin engagement withthe teeth of the rack, an the invention has for'its object a very simple construction of tool of this character which may be cheaply;

'manufactured and which will be compose comparatively'few parts that ma be readily assembled and thaty will be dura le.

'The invention consists in certain constructions and arrangements of the parts, that I shall hereinafter full describe and claim.

- Figure 1 is a side e ovation of my improved wrench. Fig. 2 is a similar view'partly in section. Fi 3 is a transverse section on the line 3-3 of ig. 2looking in the direction of the dart. Fig. 4 is a detail edge view of a' portion of the shank. Fig. 5 is a detailview of the spring.

Corresponding and like parts are referred to in the followin description and indicated in all the views o the drawing by the same reference characters. y

Referring to the drawin the numeral 1 designates the shank'of my improved wrench which is preferably formed integrally with the stationary aw 2, and which 1s provided at one end wit a referabl tapering end 3 for thereception o the woo en or other handle 4, secured thereon in any desired way. 5 desi ates the movable jaw which is formed with t e yokes 6 encircling the shank 1 and :JE which the movable jaw is mounted to 'de longitudinally on the shank, the openings in t e yokes 6 being of such size aste permit a slightlateral play of the jaw on the shank as is customary with thls class of wre ches.

T shank 1 is formed on its inner edge with a longitudinally exten rack 7 having transversely extending teet (as shown) the rack of the shank being preferably formed being forciblr as an. integral part o the shank and being tending wear surfaces 8 that are preferably flush with the outer edges of the teeth of the The movable jaw 5 is'fcrmed atits rear bounded on both sides by longitudinally exend with a segbmental socket 9,said socket beera ingcf pref p ly uniform diameter throughout and being transversely considered, of more than 180 deglrees in curvature, the walls ofthe socket bor ering upon the opening in the raarmost oke 6 and the adjacent portion of the bo y of the movable jaw converging, as `clearly illustrated in the drawing. The movable jaw 5 is formed on both sides of the socket 9 with longitudinally extending wear surfaces fdesigned to coact with the Wear surfaces 8 when the movable jaw is slid longitudinally on the shank 1.

10 designates a dog or toothed block which is shaped to accurately fit the socket 9 and which is preferably held tightl therein by driven in the soc et, said dog being forme on one edge with teeth 11 corres ending 'to the teeth of the rack 7.

he movable jaw 5 is held under tension 'with the dog'lO Vout of engagement with the rack 7, b? means of a plate spring 12 which extends rom one yoke 6 to the other and which is formed with reduced ends 13 tting Within the ends of the yokes, shoulders 14 being formed at the bases of the reduced ends 13, said ,shoulders abutting against the side edges of the yokes and thereby holding the s ring 12 securely in place but in a remova le manner. It is to be .understood that the spring 12 is detachable only after the movab e jaw 5 has been slipped off the shank 1, this operation -bein rendered possible by the detachable hand e 4.

I am aware that it is not broadly new with me to provide a wrench, of this character with an integral rack formed in the shank and witha spring held by its own formation without the aid of rivets or the like, in the yokes of the movable aw, and hence I do not claim such construction or arrangement of the arts broadly; but,

at I claim as new and desire to secure by Letters Patent is:

1.V The herein described wrench, comprising a shank, handle portion, stations Jaw, the shankbeing formed with a lonitu inally extending rack and with lon 'tu inall extending wear surfaces on bot sides o said rack, said wear surfaces being flush with the movable jaw mounted to slide on said shank and sprin ressed in cne direction laterally;i

`said move e j aw being formed at its rear en with a socket the side walls of which converge towerds the opening in the movable jaw that accommodates the shank, the walls of said opening where they border upon the socket being formed with lon itudinally extending Wear surfaces adapte to coact with the weer surf-aces of the shank, and a do ttin frictionally within said socket and close y conforming thereto and formed. in one edge with teeth designed to engege the teeth of the rack.

2. A'Wrench of the character described, comprisin a. handle and relatively stetionary Jaw, t e shank being formed wlth a rack,

a movable j ew provided with two yokes by which it is mounted to slide on said shank a. d og carried by said movable` jaw and designed to engage the rack, and e. plate sprin extending from one oke to the other and formed with reducedT ends and with out- Wardly facing shoulders et the bases of the reduced ends, said ends fitting Within the ends of the yokes respectively and the shoulders abutting against the opposing interior walls of the res ective yokes, es and for .the purpose set fertili. l

In testimony whereof I aHX my signature in presence cf two Witnesses.

JAMES F. WRIGHT. VVitnessesz,

THOMAS J. ELLIs, CHARLES WM. DE'rrnnY.

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