US1471413A - Wrench - Google Patents

Description

Oct. 23, 1923.

J. R. PALMETER WRENCH Filed Feb. 21. 1922 2 Sheets-Sheet 1 Oct. 23 1923.

1,471,413 J. R. PALMETER WRENCH l 2 Sheets-sheet 2 F'iled Feb. 21, 1922 V/////////////////1V/IHW//lH//lW Awrenches; and the 'object of theimprove- Patented Oct. 23, 1923.

f Lavinia 'YWRENCH. if.. i

Applicata@ filedv February 241, 1922. ff serial in. marea i The invention relates to adjustable jawA ment is to provide a wrench in-` which the movable jaw is s'lidably mounted crosswise of the.- wrench headto freely move to and, from a fixed jaw and be heldin spaced re-. lation thereto byv means of inter'meshing toothed slides, one lof which slides is spring actuated and the other slide is .controlled by a manually compressibl'e spring leverwhich also engages saidV spring controlled slide tovwithdraw both slides out of the path of said movable jaw` in order to adjust the same, said spring lever beingautomatically returned to its normal position by the spring control of the same; and the invention oonsists inthe novelv features and combinations hereinafter set forthand claimed. In-the drawings, F igure` 1 is a side elevation of the wrenchwith the parts in the normal position, the jaws being separated from each other. F ig. 2'is a side elevation of the wrench with thepside yplates removed, showing the construction and arrangement of the wrench parts and the manner of adjusting and holding the 'movable jaw. Fig.

3 is a detail plan view ofV the preferredl form of the operating lever. Fig. eis a perspective view of the two jaw holding slides separated from each other-rand the.

. wrench, to show the construction of the same'V in a wrench in' which said slides are placed edge to edge sopas to make as thin a wrench. as possible; and Fig. 5 is a perspective view of a vmodified form4 of the j aw holding4 slides in wrenches inwhich great strength is desired, and Said slides are placed side toside instead of edge-to edge as inthe thinner wrench, the modification being used pref, erably forrlarge wrenches. gFig. 6 is a crosswise sectional view at line 6-46 n'Fig.

2 showingthey andijarrange-L* l ment of the `slides` and the pin and groove j i connection. Fig. x7 is fa. sectional. view of'.

themodified form of the ,slides atlineY-f' in o Fig. Y10 in which they are placed sidelto side and the pin and grooveconnection.` Fig. 8 is in ,an .edgewisef elevation ofl the fwrench sho'wingthfe compressible lever `and side closure -plate and theY preferred arrange ment for the Vmovable jawiiwith theribex- :tending'int'o the same tofhold the same iny line; en lFig. 9 is a sideelevationof'the head ofthe wrench with the side plate and movable-'jaw removed showing said cross-.-

wise rib, the holding'. or controlling slides being shown inthe withdrawn position, :that

is,r with the' controlling lever-pressed inward,the extended lpositimfffor said 'lever` being shown in dotted outline; andF ig. 10 r 4is la perspective View of Vthemlovable jaw removed from'the wrench head and showing the groove therein foi-said crosswise rib; and Fig. 11 isa side elevation .fof the modi fied form oflthe wrench" head 'showing one of-the toothed slides in the holdingposition, the .other being shown in ythe withdrawn position yin dotted outline Ffig 12 is a l crosswise sectional view at line. 12,-12 in Fig. ,111. showingl the arrangement ofthe slides and the ypin and groove connection in the modified form. Y Fig. 13 isa lperspective viewof thel side plate `for the wrench detached from wrench. Y V v Like characters of reference referto` corresponding parts in the several views.

the remaining portion of the The numeral 15 desgnates/themain por- Y tionof the-w-rench'whichV has ,the fixed jaw llextending upat one side ofthe wrench head, a crosswise groove 17y being provided immediately beneath said' fixed' j aw `16, which Vgroove hasv the crosswiserib'lS therein. The;

rib 18 dividesthe groove 17 about midway and extends into 'the movable jaw 19, pref changed, for'exa'mple, for rlightnessv or for: greatenstrength ,withoutdeparting from my erably in about -the proportion shown 'in 9.5

Fig. 8, thoughfthese proportions may bev 17 and has lthe groove 20 therein to slidably Y19 as it slidably works in the groove 17 in said wrench head. f

The Vmain portion 15 of the wrench is extended angularly in a handle 23 and has the groove or sidewise opening 24: therein connecting to groove 17 at one end to receive the jaw controlling slides 25 and 26 in the small or thinner wrenches, land 27 v,and 28 in the larger or thicker wrenches, said slides being similarly. actuated and. performing the same otlice in substantially the same manner, with the exception of the size of the wrench .as to thickness, and the strength of the same, the slides 27 and 28having a slightly dilferent shaped opening 29 las compared with opening 211. The edge to edgeV or more delicate ` slides 25 and 26 are toothed on their ends as shown Vat 30to enter into holding mesh in the teeth 21 in the 'movable jaw 19. 1 t

The slide 26 has the hole 31 inthe inner end of the same to receive the coil spring 32, which coilspring seats on a shoulder 33 in the inner end of the groove24'- The slide 25 slidably lits alongsidethe slide 26 in the groove 211 and has the Si'dewise extending pin 3e on the innerend of the same which is engaged in the inclined open-ended slot 35 in the pivotally mounted lever 36. The lever 36 is pivotedv on a pin 37 at its lower e-nd and Yhas the leafspring 38 bearingragainst the inner side of the same, preferably having the tongue 39 on its upper end which strikes against the side vof the wrench part 15 and thereby acts as a stop for the inward move Y ment of said'lever 36, said inward movement being just sulicient to withdraw the slides 25 and 26 entirely out of mesh with the teeth k21 lof the movable jaw 19, thereby permitting said movable jaw 19 to be adjusted against the nut to be turned, after whichv pressure on the lever 36 may be removed, thereby permitting the slides 25` and 26 to be automatically moved into mesh withV the teeth 21 to hold said movable aw` 19 in the adjusted position. f

. ln order tov withdraw the slide 26 from i intermeshing engagement with the teeth 21,

slide from mesh with the teeth 21, and the pin 10 then engages the end wall of the notch or groove li1 and continued pressure withdraws said slide 26 from engagement in the teeth 21, thereby entirely freeing the movable jaw 19 so it can be moved backward or forward as desired in order to adjust the same.

A cover or side plate Ll2 is provided on the side of the main Ywrench portion 15, bei' tt in the side of the' slide 27 and the lost motiongroove 47, and the action is exactly the same as with the slides 25 and 26, the slides 28 being automatically actuated by a spring 32 on the shoulder 33 asfor slide 26.

The slide 28, however, has the shoulder 33 nearer thejteeth 21 in order to provide for the increased width ofthe toothed end of the slide 28, which has the shoulder 15 with the hole t6 therein to receive the spring 29, as shown in Figs. 5 and 11. rlhe pin it in the slide 27 working in the groove 117 as shown ini Fig. 12 actuates the slide 28 in precisely Ythe same manner as the slide 25 actuates the slide 26. -However, the placing of the slides 27 and 28 alongsideV ene another permits live teeth 'in each slide 27 and 28 instead of three teeth as in slides 25 and 26, thereby giving a much stronger holding power for the jaw 19; The slides 27 and 28 may work alternately the same as the slides 25 and 26. The number of teeth in'said slide may be changed without departing .from mv invention.

1t is apparent that all of the parts of the wrench may be quickly and economically made by drop forging and other machine methods, also that the wrench can vbe quickly and easily assembled, thereby permitting the manufacture of the wrench and assemblage of the same at a low cost, `at the same time making an exceedingly strong and convenient wrench which can be held and adjusted byV one hand. n

ln operating the wrench, all that is necessary 's te give manual pressure to the lever 36 with its stop projection 39 which presses downward on the pin 34E, thereby withdrawing the two slides 25 and 26 or 27 and 28 from their meshing engagement with the movable jaw 19, permitting said jaw 19 to ranged in -staggered relation as toiinte'rf" `meshing` with the'teeth on the movable jaw at say one-half the thickness of said teeth on the movable jaw, that is, one slide of said` pairlV of slides be positioned solas to f inter-mesh with the teeth 21 o n the movable jaw and by withdrawing the same,` and movi ing said movable jaw one-half-'the thickness of one orp the teeth 21, the'otherslide would be permitted toenten This, arrangement gives a suiiiciently close adj ustment,since the sizes of bolt nuts usually run in one-eighth inch series. It is obvious that anyfform of` lteeth crosswise of the edge of said jaw, a

pair. of toothed slides to hold said jaw in an adjusted position, and single manual control' Vfor said slides to retract the same seriatim from engagement with the teeth of said slidably mounted jaw. j j

2. A wrench comprising a struck-up main Aportion having a crosswise groove I in the head portion and a lengthwise groove .opening out of said crosswise groove into the handle portion of said wrench, a movable jaw slidably mounted in said crosswise groove,slides in saidlengthwise portion of' said groove having their ends adjacent the edge of said movablev jaw, and releasable inter-engaging spaced projections and open-- ings in the adjacent portions of said slides and said jaw whereby oneof said slides will hold said jaw in a fixed position, a manually controlled lever for retracting one of said slide-s and lost'motion means between said slides transmitting the retracting move-V ment of the first named slide to the other slide and insuring the release of movable jaw. Y 1

3. A wrench co-mprising a struck-up main portion having a crosswise groove in the head portion and a lengthwise groove open- Y ing out of said crosswise groove into the handle portion of said wrench, a movable jaw slidably mounted inl said crosswise groove, slides in said lengthwise portionof said groove having their ends adjacenty the edge of said movable jaw,l inter-engaging spaced projections and openings in the adjacent portions of said slide ends and said jaw whereby one of said slides will hold said jaw in a fixed position, vand means to manually retract said slides'seriatim and release the holding slide from engagement with said movable jaw to adjust the same.

4. VA r wrench comprising a vmain Vstrl'lck-up a movable l `Wrenchportion having '-a; crossw'isejgroove therein and-:a lengthwise groove opening slides mounted 1Ain lsaidlengthwise groove` to withdraw the holding slide J,from engage'- ment withsaid jaw, and a side plate for said wrench to` close. said `-groovesafnd hold the parts in working. position, y

V- 5. A wrench comprising a main struck-up wrench portion khaving crosswise lengthwise grooves opening into one `means betweensaidslides andmovablejaw* whereby'one of saidslides will hold the same, a manually compressible spring lever .'75

and

another, a tixedzjaw on said main portion,

a movable jaw slidably fitting in said` crosswise groove tomove to fand fromsaid iXed jaw, apair of jaw holding slides mounted( 'in said lengthwise groove,A a spring for actuatingone `of :said slides towardr said movable jaw, a spring controlled lever Vfor the. otherof said slides, lost motion lconnection between said slides, 'and toothed inter-meshing connection between thetends of said slides and the side of said movable jaw.

6. A wrench comprising a main-struck-up wrench- Vportion having crosswise and lengthwise grooves opening into -onev another, a fixed jaw on said main portion,

a movable jaw slidably fitting in said crosswise groove to move to andl from said 'fixed jaw, a pair of slides mounted in said lengthwise groove 'with reedom1 of endwise movement, a spring for actuating oneof said slides intofholding engagement with said movable jaw, aspiring controlled-lever I or the other of said slides, lost motion connection between said slides, toothed connection between theends of said slides and the side of said movable jaw, saidteeth in said slides arranged toothed slides into inter-meshing engagement with said movable jaw. Y

7. A wrench comprising a main struck-up wrench Y portion `having crosswise and lengthwisegrooves' therein, a liXed jaw on Y ment, teeth crosswise of the lower edge ofv said" movable jaw, similarily toothed jaw holding slidesl Vmounted in the lengthwise portionlof said? groove adjacent saidY teeth on said movable jaw to Yinter-mesh therewith, a coil spring to give automatic engage-" v 11ofy in staggered vrelation to on-e another as to said teeth in f said movable jaw to alternatelyV enter said ment for Said inter-meshing teeth on vone of cover. plate shaped to lit said main portion lfif said Slidesa a pin 'on the other of said slides, of said Wrench and hold and enclose seid a spring lever having open-ended slot parte Y engagement with said pin on said slide and In testimony whereof have allixecl my extending out from the handle of said signature n the presence of two Witnesses.

Y Wrench to be manually eoinpiessible to move JOHN R. PALMETER.

said 'slides lengthwise out of engagement Vlitnesses: Y with said movable jaw, pin and lost motion v CORINNE V. SWANSON',

Connection between Said Slides, and a side E. T. BALDWIN.

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