US1254587A

US1254587A - Wrench.

Info

Publication number: US1254587A
Application number: US19311417A
Authority: US
Inventors: Edwin L Erickson
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-09-25
Filing date: 1917-09-25
Publication date: 1918-01-22
Anticipated expiration: 1935-01-22

Description

WRENCH,

APPLICATIUH FILED slim'. 25. aan

M ."TIVESSES' lill .lili

lill

ila

WRENCH.

Specification of Lettera Patent.

To all' autom t may concern.

Be it known that l, EDWIN L. lilnicnson,

citizen of the United States, and resident off Aitkin., in 'the county 0l Aitkin and State of Minnesota, have invented a new and useful improvement in' Wrenches, of which the ollmving is a specication. y present invention relates generally to Wrenches, and more particularly to ratchet wrenches, my object being the provision of a wrench of this type having novel actuating means Whereloy it may be utilized in spaces of small compass Where the usual Wrench would loe unable to function.

To this end li provide a Wrench havingF a 'handle which under ordinary circumstances .may constitute the main source oi leverage Oli' of a nut, together- .tor the turningl on or with certain ratchet actuating connections extending longitudinally through the handle from the ratchet at one end, having a lever movable at the opposite end ol the handle to actuate the ratchet independent of the handle in spaces of small compass where the latter cannot function.

.in its more specific aspect, my invention .resides 1n the features of construction, arrangement and operation to be now described with respect to the accompanying drawing", forming a part el this specification, wherein: Figure l is a, view partly in side elevation and partly in longitudinal section Shen/'ing my improvements. liign 2 is a, similar View with the wrench turned 90 degrees With respect to liig. l. y Referring now to these figures, my invern tion contemplates the provision of a wrench including a hollow handle generally--indiv cated at 10, and preferably in a pair of similar .side sections 1l and 12, whose flanged edges, extending substantially entirely therearound, are arranged to meet. Sections 11 und l2 ol' the handlelO are rigidly connected hy means ci2 clamping screws indicated atv 13 particularly in Fig. 2.

.et its opposite end, the hollow handle is slightly enlarged as shown, and the side sections 11 and 1Q at one enlarged end are provided with bearings 11i for the cylindrical portions 15 of a. nut engaging socket 16, the latter ol which has Wise shaped here 17 adapting the saine to the reception oi. a socket or nut or other niemhento he turned. Between its cylindrical portions hy which it is journaled in Application le'd september .'25, 191'?.

a. polygonal or other--4 Serial No. 193,11d.

the bearing openinglll of the sides of the handle, the nut engaging socket 16 has an annular series ol ratchet teeth 18, thus located between the sides 11 and 12 ofthe handle, andhence in the hollow of the handle.

Extending longitudinally through the handleare a. pair of ratchet levers 19 and 20, each of which has a tooth engaging end 2]., these ends of the levers engaging the ratchet teeth 18 ofthe socket 16 at diametrically opposite sides of the latter, as plainly seen in Fig. 1, the said levers 19 and 2() being preferably connected by a yielding springmember 22, at a point adjacent their tooth engaging ends in order to draw the latter into engagement with the ratchet 18 and maintain euch engagement substantially at all times.

llt its opposite enlarged end, the handle 10 has a transverse stud 28, extending through the inner end of a lever 24. which projects exteriorly beyond the adjacent end of the handle 10 substantially in the direc tion of the longitudinal axis of the handle. The lever is movable independently of the handle 1U and tor this purpose the latter has at its adacent enlarged end, a transversely extending' slot 25 in which a portion of the lever works duringT such movement. rlhc lever is also provided at its inner end with extensions 2G at diainetricall opposite sides of its Fulcrum 23 to whic ex- `tensions the adjacent ends of the rjitchet leversI 19 und 20 are pivoted at 27 1nd 28, as most plainly seen in Fig. 1, in o der that, with the-handle stationary, the lev r 211 may be moved buck and vforth as will be seen by a. comparison oi: the t'ull and lnoll'en lines in Fig. 1, so as to actuate the ratchet levers 19 and 20 and in turn rotate the nul ingr socket 16 in one dircwtion.

lt is obvious that the constructin thus plainly described provides, under ordinary circumstances, for the use of the handle 10 as the ina-in source of leverage for tl rning the nut engaging socket as usual, an` that where :1 nut to be turned is located between. adjacent parte such as for instance, the cylinde'rs of a multi-cylinder engine, where it is impossible te move the handle 10 as usual, the lever 2l may be utilized above described, tor the rotation of the nut engaging rammed aan., es, raie.,

socket, so as te avoid the necessity of hav- Mil lit is obvious that the improrezl set forth may be mede et' various mi Y and, for convenience, may he formeel rions lengths, and 'that es clescrihezlJ my in vention provides e simple construction of reet durability and eectivenesa e-nl is lurther obvious that a, flog 9,9 or fie tleif'iee may be employed and controlled. by' a Spiel 30, to engage the ratchet teeth i3 for pref venting the engaging socket 'i6 ironi i ing in one direetion.

l-claiin:

l. A Wrench comprising e hollow he mile, e nut engaging Socket journelefl trensverselbf through one end of the handle enti having ratchet teeth around the same in 'the hollow of the handle, a pair of; spaced, levers e:-;- tending longitudinally 4within the handle and having engaging .ends in connection with the ratchet teeth at cliametrieelly opp@ site sides of the seid Socket, and a` lever ulcrumed in the opposite encl of the handle and movable independently thereof, Said. last named lever having extensions at die metrically opposite sides o its ifulerum ith the opined-ie oude* ofi sutl ratchet levers are pivot l. n'ierwh @only ielug :1 hollow handle new A u utel opening et one g4 spneeff openings nflj; ieout its e, Wl, :uit e.

op; L fg'ng socket mon'iher ioni v igh the lmet named innings of t l l ng im annular Series of rite erenremid within the holF f e, ratchet engaging levers ituiuelly through the hun ing; diemetricnlly opposite su, "et iiieinher :it one 01ML nnci, e, lever ulerumecl :ai: its opposite end within the oppo ',e. nml of the lmiflkg Suid lever projeelii'. beyond the respective enil ol the 'houille in the general direction, of the longituliiml (mie of the letter and working iii the slotted of ling of the handle, :md saliti lever being; 'lui her proviiff` with lett-rel exteneious proie@ ng iuinetrieelly oppo Sile sides oil i fulerum and to which the opposite ends oilI ratchet levers are piv-- otzilly eoni'leet (la El l' Till Lliv T im.