US1781940A - Wrench - Google Patents

Description

Patented Nov. 18, 1930 Y l' l UNITED STATES LON mi. Moss ANDERSON, onenessour,` Trains,

My invention relates to improvements in wrenches of the end opening, plier type; and the objects of my improvement are, rst', to

provide a wrench of the said type in which 5 the handles do not pivot at the base 'of the jaws, but removed therefrom to allow a shank or slender body of stockto support the jaws and having the handles pivot at the remote end of said shank from the jaws.V

lo Second, to provide a better and more convenient means of adjustment otl the jaws;

third to arrange thehandles in suchL a man-V- ner that when they are entirely closed thej7 will have a tendency to remain closed, and.l

l5 Ywhen opened past a certain point they `will have a tendency to remain open.l

With these and other objects in view my invention consists in the novel arrangement described and illustrated inthe accompany-I 2, and has the Vjaw 5,'also the sleeve 13' 39 formed on its upper end.v` The sleeve 13 and the jaw 5 can be formed by forming an eX- tended arm on the m'e1nber2-`2a as at 13a.,

and then bending this arm over to form the sleeve 13 and part of the jaw 5;.` The lpart 5' bent over can be iirmly attached to the other part-of jaw 5 by means of'rivets, screws, welding, or any ordinary means of attachment. Y v y' j The jaw 6` is formed onone end of the curved shank 3, and can be offset. slightly to one side so as lto lie in the same vplane with the jaw 5. The curved shank 3, can be constructed so that the' part of the lshank 'adjacent the jaw 6 is of a different curvature to the part adjacent the handle 1. Y

On the remote end'of the curved shank 3 fromV the jaw 6, extends laterally in one direction the lug or'ear 14, and laterallyv in the opposite direction the arm 7 whichmay A12,v and is normally heldl in that. position; by

vtoward or away from. the aw be extended as 7a and Vthat bent around the member 2iltolt'ormv a 4sleeve, designated as sleeve 7. :.Theenlargedrendof thearm7--7ajA d :designated as V14? liitsonl thevopposite side of `the endfof handle 1 fromthe' lug. vorear 14. e The khole I 16av receives/the opposite'ffend of the 5;5

pin L thatpasses through the lugaorfear 1 4 and theendlof theh'andle 1.,` i

' Y' Theend of theh'andle 1 "which isy attached tothezcurved shank 3, byfmeans ofthepin-or -rive t4;, hasformed. upon it a tooth 12;thati60 j l.engages f a 'toothed rack v10,for1ned` Onfthe edge fof `thefm'en'aber 2?. lgThisfrackris so curved and positioned lrela'tiye to the point l11of-guide13,athatg-whentheitooth 12i's'e11`- f gaged alt any place along the rack 10 andthe fj handles are in'their closedposition, the upper point of the-jaw'gfwillilieinithecircumfer- "ence of Va circflez-fwhosefcenteris'determined' by-"the ,curvature ofV the curved shank'gthe 1cu-rvatureof the rack 1 0gand the lposition-'of Hthe 'rack'f` 10 ,relative tothe lpoint Allioffthe v g Asleeve ,13;4 `The sleeve ,7 is so' formed that it jl `can be/spacedfrom themember2aat 17a f greater distancethan the lengthof ther-tooth the spring 9 .which is atta'chedrto the sleeve 7 at the vpoint 8,-' by.'screws, rivets orrany ordinary'tmeansof fastening. i

Now Vwhen thepart of the sleeve 7 ait-'the `point 8 'is pressed down against the member 8o Y 2a at 17, it will'cause the tooth 12V to be Vpushed out of engagement with the rack 10, then thecurved shank` 3 with its jaw (Land carrying v the handle 1, can be slidpalong ytheineinber 2a until the jawsj of the wrenchare open to the "desiredwidth, then when the .pressure is released from 'the' point 8 the tooth 12 will again engage the teeth 10, and the-movement of the handle 1 will cause the jaw A6 to move' .LSU VNowrit will also-*be seen thatwhen the f until'it comestol the position: of la, that the teeth 12 will disengage from the teeth 10,`

and thejaws can also be adjusted in this way. 9151` The toothV is set'at such an -angl'efrelative to the handle 1 and the pin 4, also-the spring slightly the tendency of the spring 9, will be to hold the handles in an opened position.

While jaws of this wrench are set at an angle relative to theV longitudinal aXis of 5 the wrench preferably an angle of between 30 and 60 degrees, the plane of the jaws can also beset at an angle to the planero :the handles and body, preferably van angle .of between and 3() degrees, as shown in Fig.

10 .2,taken on line 2 2 of Fig. l.

- The invention hereindisclosed is a furtherV development of an invention disclosed in .my application for Letters Patent on a wrench,4

` filed April 22, 1927, Serial Number 1^8f,-81 7l l I am aware that prior to my invention wrenches have fbeen made; with .one of a Vpair of opera-ting leverspivoted :to fthe end ofthe r shankl of :the adjustable `jaw and the shank' i furnished .Withnguides I therefore do Anot .Claim sneh a' vcombination broadly; but

l. A. wrench .comprising a lfrandfle with toothed rack 'af-nd -an 'end jaw anda sleeved -engagement with ajmevableljaw, -a toothed lever pivoteel'on the movable jaw :and .engage- 'able `with the raok, :the sileevedengajgement Ibeing esueh las lto permit :a raeked aw Ato move into'and out .of .engagement with the toothed lever means orno-rmail'ly-main- :taining :it in .eng gement therewith.

2. A wrenehf comprising a handle with toothed raokandwan-end-jaw and a sleeved engagement'wvithmovable jaw, a :toothed leveren thev movable 'jaw Iand enga-geabl'e with the rack, a .curved Tshank :on the Inovablejaw, the rack shaped andpositione'd relas .tive to the sleeve such amanner'as to per e mit the 'faces :orf .the jaws to approach each ether .as radii of a circle', `x'zv'hose Center is 1de- 4o te-rininedA -by thefeurvfat-ureo the -eu-rved shank Vland the Vlsl-i'agoe and-position of .the 1- raek relativev to the sleeve.

LoN n n Moss-Anwesen.

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