US1470184A - Wrench - Google Patents

Description

, l I l l 0st.. 9, 1923. Y. IA'MSQ J. R. PALMETER WRENCH Filed' Jan. 5, 1922 il, 1923i.

EOI-IN R. PALMETEE,

GF JAltIESTGV-J-N, NEE-"if YORK.

`WBENCH.

Application rfiled January 3, 1922.

,To all 107mm t may concern:

. T p Be it known that l, John l. fiiLMnfrnn,

a citizen of the United States, residing atr the city of Jamestown, in the county of lChautauqua and State of New York, have invented certain. new and useful improvements in, lNrenches, of which the following, taken in connection with the accompanying drawings, is a specilication.

'll`ho invention relates to wrenches, and partictdarljr to the sti-called nninkcywrench type; and the` object ole the iniproveinent is to provide a wrench in which the inner jaw 'freely slidalole on the shank ol the wrench handle, a gri pping, le ver 1seing provided on said handle having tootl'icd engagement ywith said sliding jaw and a spring 4latch to hold said lever and sliding jaw rigidly in the adjusted position, a Y pressure actuatable spring release 'for said spring latch being provided in said handle so that said jaw may he released by manual pressure on said spring release; and the invention consists in the novel `features aud coinhinations hereinafter set 'liorth and claimed.

lever being shown in the locked position, the

released position being shown in dotted outline. Fig. 2 is a lengthwise sectional view of the handle portion of the wrench showing the spring releaseA F is a side elevation of the handle portion shown in Fig. 2 showing the spring release and the latching lever in the released or unlocked position. llig. Ll is a. crosswise sectional view of said. handle portion at line 4 4 in Fig. l showing the spring` latch in the latched position; and lF ig. 5 isa similar sectional view showing said spring latch in the unlatched or released position. Fig. 6 is a detail plan view ot the jaw engaging toothed end of the locking lever. Fig. 7 is a orosswise view olt the shank and locking lever at line 7-7 in Fig. 1. l? 8 is a perspective view of the spring latch for the locking lever removed from the .handle ot the wrench.

Like characters of reference refer to corresponding parts in the several views.

The numeral 10 designates the shank lof the wrench which has the outer jaw or head 11 attached thereon at one end and extends ySerial No. 526,559.

down into the preferably enlarged handle portion 12 at the other end, said shank and handle portion being channeled as shown at 17 to receive the working portions ot the rencli.

lhe jaw portion 123 is slidalily mounted upon the shank 10 to freely move up and down said shank when no. engaged, being provided with a hole Il-/l thcrethrouo'h which l b tits around said shank l() and which has the interlocking teeth in the side wall of the opening 1l, prelierahly toward the side having the jaws 11 and 16.

rlllie slidahle portion 13 with its jaw 16 is held rigidly in the adj usted or predetermined position against a nut or other article hy means of a locking lever 18 which is piif'otally mounted in the channel opening 1"? on the pin or stud 19, and has the sidewise extending teeth 20 in one end which inter-mesh in the teeth 15, holding the part 1:3 lirnily in the AUljusted position. The

handle or gripping portion 21 oit the lever Y '18 extends alongside the edge of the handle portion 12 and has a strong spring leverage, a stroi'ig lea't'spring 22 being preferably mounted within the channel portion 17 of the handle part l2 in the Afollowing manner: 'lhe end ot the spring 22 is inserted sidewise into a slot 33 in the side wall or' the channel opening 17 and extends out over a pin 34 so that the end of the spring 22 is thereby given a strong tension against the inner side of the handle part 21 of the lever 1S. rl'his arrangement normally holds the lever 18 in the unlatched position shown in dotted outline in Fig. 1.

ln order to latch the locking lever 18 in the adjusted position, an inward projection 23 is vprovided near the lower end of the handle part 21 of said lever, which inward irojection 23 has a hole 2li therein near its inner end. A spring latch 25, made in the torni oit' a leaf spring and attached at 26 within the channel opening 17 in part 12, is given an upward bend as shown in Fig. 2 toward said latching projection 23. rEhe leaf spring 25 has the bevel ended latching pin or stud 27 on its raised end portion which'is so positioned as to he in line with and engage in said opening 2d when the handle portion 21 Ot the lever 18 is pressed inward, snapping into latchino` engagement and holding` the toothed end 20 of said lever 18 firmly in the teeth 15 of the sliding' j aw portion 13, thereby holding said sliding f )late which is held in olece hv the screw bolts 29 which extend through Said handle. releaeing` Spring pin 3l is mounted in the opening 30 in the side et the cloeure plate ol: the handle portion l2. A coil spring Z212 ig provided around the Spring pin 3l he- 'rv-reen its head and the plate 28 within the opening 30 to normally hold Said pin 3l in the releaeed position. The heed of the pin l extends sufficiently above the Side or the late 28 so that a manual grigping pressure on the handle will prees upon the head ot' :lsaid pin pressing` the ,ieaiff Spring 'downward and disenggaging the bevel ended stad 2'( 'from the latching @mening QAA, therehjv permitting the leaf sprinw 22 to move ine toothed locking` end 2O o'i the lever lll yont of engagement with the teeth l5 o'f the l? releasrnggj the Said Hlidahle jaw portion "'aw.

All that is necessari,T to re-engage Said latch iS to press inward on the handle peric-n 2l et the spring' lex/'er and automatically engage lthe Stud 2'? in the openin" over the beveled end of said Stud.

lVhat i5; ilaimed as new is:

l. A wrench comprising a channel shank land handle, a ixed j on the opposite end et Said Shank 'from said handle7 a Slidahly mounted jaw portion on Said shank having; teeth therein adjacent Said Shank, a spring levery pivotally mounted rnidwagT of its channel and extendingY alonsdle to he manually d end on seid (rage teeth in f t to adglistahly hold the sanlem. projection on the handle portion of said having an ooening therein7 a Snring lever' latch n Said handle Vto engage in sa hold Said lever and jaw releaee 'lor id opening; and

nete-d `pezition, and a conlprising r1. channeled e; a lili, jaw on the opl Shanh 'trein Said handle, ted jaw portion on Said teeth therein adjacent said lng lever pivotally i'nounted Shank h .eh a n midway o' .ff zength in id channel and extending,` alon de said handle to he inannallv gripped, Sidewiee toothed end on seid thinking lL-er adzlpted to engage Said teeth dahlejaw to adji'istahly hold the projection on the handle portion ol:

' lctfrliafine' an openingftherej la ch in Said handle to en#` 'o press; said Spring latch ont of L n with said eel-ing lever. to re.- lea, e the saine. Y i

lin teetimony whereof l have aflixed in v signature in the presence of two witnesses.

JOHN R. PALh/IET'ER.

lYitneeses:

ComNNn V. SWAN-SON, T'Hno. THMAS HAAG.

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