US1015667A

US1015667A - Chain pipe-wrench.

Info

Publication number: US1015667A
Application number: US61546011A
Authority: US
Inventors: De Mont Caryl
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-03-20
Filing date: 1911-03-20
Publication date: 1912-01-23
Anticipated expiration: 1929-01-23

Description

DE MONT OARYL.

CHAIN PIPE WRENCH.

APPLIGATION FILED MAR. 20, 1911.

1,015,667. 1 v Patented Jan. 23, 1912.

2 SHEETS-SHEET 1. El; I IE1EE 5 J2 5MMoz lgmm a .DtMbiZZZ'a ryl.

COLUMBIA PMNOGIAP" c0., WASHINGTON n c DE MONT GARYL.-

CHAIN PIPE WRENCH. APPLICATION FILED MAE.20, 1911.

1,015,667, Patented Jan. 23, 1912.

2 SHEETS-SHEET 2. 4 E1|I l: E155. 1) 0 42 7 d g 6 44 l I 4 44 l g'vl/uamtoc WNW a o 176345722047 WZZ L I W @WMWW 1. (luau L011:

IJULUMBIA PLANOGRAPH cu, WASHINGTON, u. c.

UNITED STATES PATENT OFFICE.

DE IVIONT CARYL, 0F WISCOY, NEW YORK.

CHAIN PIPE-WRENCH.

To all whom it may concern:

Be it known that I,- DE MONT CARYL, a citizen of the United States, residing at lViscoy, in the county' of Allegany and State of New York, have invented certain new and useful Improvements in Chain Pipe-Wrenches; and I do declare the following to be a full, clear, and exactolescription of the invent-ion, such as will enablev others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in chain pipe wrenches.

One object of the invention is to provide a wrench of this character having an improved construction and arrangement of pipe engaging jaws and chain whereby the wrench may be operated to turn the pipe in either direction without removing it from the pipe or reversing the parts.

Another object is to provide a wrench of this character having an improved construction of chain adjustmg mechanism whereby the chain may be readily tightened around the pipe.

With these and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claim. I

In the accompanying drawings :Figure 1 is a side view of a wrench constructed in accordance with my invention; Fig. 2 is an edge view of the same; Fig. 3 is a central vertical longitudinal section; Fig. 4c is a similar view taken at right angles to Fig. 1; Fig. 5 is a cross sectional view on the line 55 of Fig. 1; Fig. 6 is a detail view of one of the jaws of the wrench.

My improved wrench comprises a handle 1 having therein a central longitudinal bore or passage 2 and having the opposite sides of its outer end recessed as at 3 to form seats to receive the jaws 4 of the wrench, said jaws being secured to the handle by a plurality of bolts 5 as shown. On the inner sides of the jaws are formed inwardly projecting transverse spacing lugs 6 which also serve as stops for the chain operating devices hereinafter described. The outer ends of the jaws are made of alligator form by means of recesses 7 the edges of which have formed thereon ratchet teeth 8, all facing outward whereby said edges are caused to obtain a firm grip on the pipe or'object Specification of Letters Patent.

App1ication filed March 20, 1911.

- Patented Jan. 23,1912.

Serial No. 615,460.

to be turned. The outer portions of the jaws are rigidly connected by a bolt 9 arranged in alined apertures formed in the jaws and spacing lugs 6 as shown.

Arranged-in the handle is a chain attaching and adjusting member comprising a shank .10 having a sliding engagement with the passage 2, and on the outer end of the shank between the jaws 4 a transversely disposed head ll'to one end of which is pivotally connected one end of a pipe engaging chain 12. On the opposite end of the head is formed a tapered slightly inclined nose 13 with which is adapted to be adjustably connected the opposite end of the chain after the latter has been passed around the pipe or other object to be turned. When thus arranged the head 11 will engage the stop or spacing lugs 6 on the jaws so that when the wrench is operated all of the strain will be applied to the jaws.

The inner end of the shank 10 is threaded and projects through a boss 14: formed on the inner end of the handle and with said boss 14 is revolubly engaged an adjusting ferrule or nut 15 having therein a threaded socket to receive the projecting threaded end of the shank whereby when said nut is turned in the proper direction the shank will be retracted and the chain thus tightened around the object with which the same and the jaws are engaged. In the ordinary use of the wrench a sufficient slack is given to the chain to permit either one or the other of the toothed edges of the jaws to be engaged with the pipe and the latter thus turned in either direction without removing and reversing the wrench, thus providing a double acting wrench.

The particular feature of improvement embodied in this wrench lies in the fact that the parts are so disposed and the links of the chain are of such size that ordinarily especially when the teeth 8 are new and sharpthe head 11 may be placed in contact with the lugs 6 and the chain drawn over the pipe or other object to be turned and engaged with the nose 13 so tightly that a movement of the handle 1 in the proper direction will turn the pipe without necessarily adjusting the nut 15 at all, and the slack of the chain will be taken up by the teeth of the alligator jaws. When these teeth become a little dulled by constant use, however, it may be necessary to employ the nut 15, and after the chain has been ad I t opposite egides thereo h end o he handle,

head a little downward -from the lugs "'6,

after which the operation will be the s a-lne as above described, no matter in which d1- ection the-pi e is tu n Fro'm thefii e r ng a r ex ended en mnemonj E l1Slh fi ig th i and the minor details of ,CQEQILIEUQQQH may be reso ted to with ut tlepar ing {from principle or sacrifi ing any o the e ral ages 0 fih lW $h QI as @tl fine n h ippendec l claim.

illage... I claim is c.

l1hel1enein dese bed chain ipipe wreneh comprising a tubular handle, .srj'aws seen-med f and provided wit with 93. 11 other over b l thr ugh said spacing Qm ot (topics zit this ipfiten-t :ibe zdbtaiine'd m fiveeents we 31y addressing tthe wommissioner or irgten ts,

1m, propo tion lugs and jaws, a shank extending loosely throughout the bore of the handle and having'across head atits outer end with a nose at one extremity, both extremities of the head projecting laterally beyond said lugs,

, w the Jaws projecting longitudinally beyond regdi-ng description, taken in connection with the accompanying zdra'weings, the construction and operation of the ntentio will be ee dily imdejr tood without said lugs and having V-shaped recesses, with teeth-iiherei1 1facing outward, a chain connected with one extremity of said head, led thence past one extremity of the :oontaoting lugs/sand around the bje being gripp by said figlPWS, :asmdithenee pfast theother BX" tn m ty f j z gs, end t aw ng its links al ated to eng ge s id 1 9 6, m t lind d 0n the oth r e d of he shank ge nst the inn r end the handl In test-em ee whe eoi have x'he etmto s t my hand in :prjesenoe of two subscribing witmesses.

on new c aim.

lVitnesses Ber BA-BQIQQK, H. A.

Washington, "1 2c."