US1646350A

US1646350A - Ratchet wrench

Info

Publication number: US1646350A
Application number: US128216A
Authority: US
Inventors: Hertelendy Andor De
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-08-09
Filing date: 1926-08-09
Publication date: 1927-10-18
Anticipated expiration: 1944-10-18

Description

Oct 18 1927 A.r DE HERTELENDY RATCHET WRENCH Filgd Aug. 9,l 192e @um l l lNveN'ToR Patented Oct. 18, 1927.

UNITED vSTATES Annoan HERTELENDY, or'wAsi-rineaon', nis'rnic'r or COLUMBIA. j 7

' f i RATCHET WRENCH.

Application filed August 9, 1926. Serial No. 128,216.

The object of this invention is to provide a wrench with reversible ratchet mechanismk and with independently adjustable jaw members, eccentrically mounted, and adapted for movement to vvarious positions, for obtaining a large number of' adjustments in order to iit nuts of different standard sizes. A A further object is to effect this result by providing a jaw mounting device having reversible ratchet mechanism associated therewith and eccentric elements of diierent sizes, constituting working faces, these elements being retained in ythe special manner v indicated below.

A further object is to provide for varying the eiiective size oieither jaw member by the use of detachable means which may be applied in order to meet particular requirements. j

With the foregoing and other objectsin view, the invention consists in the novel construction and arrangement 'of elements'described, illustrated and claimed, it' being understood that modifications may be made within the scope ofL the claims Without departing from the spirit of the invention.

In thedrawings forming part of this application,

Fig. 1 may be consideredV as a plan view ot the wrench. l

Fig. 2 is a plan view showing the adjustable elements of the jaws in anotherposition, for use on a very much smaller nut than that shown in Fig. 1,-this view illustratingthe jaw mounting devices detached. Fig. 3 is a view of the lower element of the structure receiving the jaw mounting meansof Fig. 2. Y Fig. 4 is a section on line of Fig. 1. `Fig. 5 is a section on line 5-5 of Fig; 1. r Fig. 6 is a view showing inperspe'ctive detached portions of the structureot Fig. 2.

and lshowing the manner in which the adja-4 cent end portions of these elements are formed, permitting of assembly in order to poduce the structure of Figs. 1 and 2.

Fig. 7 is an end elevation of the adjustable element, or jaw face, shown in the upper:

part of Figs. 1 and 2.

Fig. 8 is a similar view of the other adjustableelement or jaw face.

Fig. 9 is a perspective view of a channel element which may be applied to one or both of the movable jaw faces, in order to ali'ord additional adjustment, and increase the scope or number of the` changes in adjust'- ment made possible, in order to accommodate the wrench to diiiieren't nuts.: ,Y i

` The mainfportion of the wrench comprises a two-part housing, and onepart,vwhich will be termedv theupper portion or cover portion, for convenience,is designated. 10,-.-01

that portion comprising a part of the handle i is .so designated, and formed therewith fis a partly circular portion llla-dapted to; co-

operate with a corresponding portion 12 ormedintegrally with `the portionv 13 of the handle which cooperates with elementy 10, informing the complete handle.. The

vportions

11 and 12 each form approximately 4three-fourthsot a circle, `asthe structure is illustrated in the drawings, andportion 12 isgprovidedwith' an annulary shoulder 111 x `adapted to receive the disk or jaw mounting .device 15 of Fig. 2, the cover'portion 11 retaining element 15 in contact'with the shoul-` der vjust referredto, but' permitting rotary movement.

Element 15 providedfwithalseries yoi i teeth 16, and these teeth are engaged bya dog 17 carried by a lrotatable disk 18 suitably mounted between theV elements of the housing and adapted to be partly rotated by I thumb member v19. I

Disk 18 carries' a lug 18-,.and a' forked 'resilient device' including .theq diverging members 20l and 21 -is-mounted ywithin the housing, and4 the .diverging portions cooperate-with lug-18T,- one ofthese `portions at a time serving to retain the dog 17 inyielding engagement .with theteethll. The disk 18 may be shifted by thumb member 19-on "theouter sidev of the housing, landrotated .thrul the greater portion ofa circle, in order -to engage the teeth from the oppositeside.

The lug 18 would ,th-en' bey in--engagement with resilient member 21, whereas ,in Fig. 1. it

is shownas being in engagement'with member 20. j Y use of the tool as a ratchet wrench, operat- This arrangement ,permits .of ythe f ing in eitherdirection, depending upon the position of the dog 17 andi the mounting means therefor. v

The element 15

mounts jaws

25 and 26, and a segmental-element 27 providedwith teeth 16 is adapted to till the segmental opening shown in the element l5. The adjustable jaws, or working faces, 25 and 26 are supported by trunnions and 26', and these trunnions at one end of each jaw are mounted in bearings in element l5. rlie-opposite ends of `the adjustsible jaws carry trunnions each provided with slots extending. at an angle with ,reference to each other, these vtrunnionsattheleft of Fig. 2, and further shown in Figures 6, and 8, Abeingdesignated 28. The trunnions are eccentric wit-li reference to the main axesof each of the

adjustable jaws

2,5` and 26, and each of these ja'iws inayberotated thru a quarter turnjand retained infthatposition. Y

T"'Tl`i"`e'" jaws 25" and "26 'shown respectively in Figures 7 and 8 farei of the relative propor- 'h "there" illustrated, and since. eaclreleii'eot 25iaiid26ma`y be rotated thru' a lquarter 'tin vv'it'lr reference to each" side of the other jaw, theiecieei'itric mountingoit' thejaws per smits ,of four V"different adj ust-ments between geleineiijt 25 and each side of element 26, in '(`ii"`dei*,t `)"V provide tour diiierent positions by theadjustmentotonejaw. l

s the ,therljaw'may likewisebe rotated andsiniilarl'y adjusted', a totalot sixteenad-- jiistments' may be obtain ed 'in this", manner, that `-1 iTnut of the max nnuin size illustrated ""nFig. 1', may be controlled, oranut of the s izesho'wniin y2y maybe similarly cnltrolle'cl"by a 'differentadjustment;` and nuts "ot" varying' 'sizes between these extremes' (or sixteen s'izes'fin all) may` be 4handled `by the `wrench,"without"further adjustment or provision therefor; 'l-Iowever, the channel element 30 of Fig. 9 may be employed in conietionwitli "eitherfoi" b'otli aws, 'and additional",adjustments may be provided by applyng the clirannelielement`to 'the facefo the kWio'r jaws! llioreover`,eleinents`30 of `dirent`thicknesses may be provided. i

VIn v`order to maintain anl adjusted position ofthe jaws, thefsegmental element 27 is pro- "vid'e'd 'wvithjzt tongue132 adapted to engage 'anybffthe slots foithe element 28; `1Liigs 34h60' r'atewitli'the recessed portions T35 'in thee'n "alls of the shoulders l5 and a close 'fit i's'here rovided the`trunnions 28 bein?i4 'received byfthebeariiigs 86, and being rotatfable 'inthese bearings until loelied by the ward LnTvemeitV fot" segmental 'elementL tcausing thetongues 32 and lug 341to`engag`e as dicated. The element l5 constituting i V ,f.., i A i .t if." 'ay ja mounting device, and the isegmental inembei'f2`7 `applied thereto, orin a s'trucftuife "rotatable `in the "socket produced y' elements gular in crossfsection,andfcarried ,by said rineans",` and a detachable segm'ei'ital bridging element, forming 4with anfelement `of'jthe mounting in'eans a circular rotatable device. 13.2 In :a wrench, jaw mounting meansin cluding ratchet mechanism, and plurality of eccentric ally mounted aivs carried jby `'said means, the jaws including",trunnionsf bv which `they rare irotatahly;4 mounted," `and meansbridging the jaws, and engaging one of ,the trunnions of each `jaw Afor retaining the jaws in anf adjusted position.` i

In a wrenelnvlj aw mounting means comprising a segmental element and a detachable bridging element of segmental form, anec` ,centri'cally mounted jaw carried. by the mounting means, said jaw'being angular in cross-section, means for retaining the aw `in a fixed position, and a second .jaw opposite that `first named `and engaged `by fthe Y,bridging elementi fr `5Min a'wrench, `jaw mounting means o f segmental foringand aisecondfelen'ient of segmental form complementary to that iirst named, "for completing an annular structure,

vsaid ture 1having 'fteeth' formed exteriojfly Vth of, means for" engaging the teeth, an eccentricallymounted jaw carriedbythe mounting means,saidqjawpbeing angular in cross-section, means for retaining-,the yjiiwin `a fined position, va' second jaw opposite" that first na1ned,and` adetacliable ,device for varying'the effective size of the eccentrically mounted jaw." 7 i 6. In arwrenoh, jaw mountingnieans in- -Cluding a plurality o' complementary' seg# i 'mental elements and ratehetmechanism, said elements Aconstituting a rotatable" device, and spaced `.jaws carriedl by one of the segmental elements, the"l other ot' said segmental A"elements "bridging the Vspacel between 'coi-ref spending ends ofthe aws, i

In testimony whereotl atiix myV signature.

`Armen DE iinirrite-.nunr.A