US524330A - Pipe-vise - Google Patents

Description

, Patented Aug. 1.4, 1894.

J. LANE.

PIPE VISE.

n I' l. i Ilm.. y

(NoMdel.)

ATHE nonms Psrns cn., pHoro-Lune.. wAsnmaTon. n, c.

" i UNITED 'STATES PATENT OFFICE.

JOSEPH LANE, OF LEWISTOWN, ILLINOIS.

' SPECIFIcATIoN forming part of Letters Patent No@ 524,330, dated August 14,1894.

Appiitation inea rebruty'zi, 1894. sedano. 501.032. (No mode.)

l To all whom t may concern.-

Beit known that I, JOSEPH LANE, a citizen p ofthe United States, residing at Lewistown, in

`the county of Fulton and State of Illinois,

have invented a new and useful Pipe-Vise, of which the following is a specification. My invention relates to that class of pipe 4grips or vises which are adapted to hold the .bolted to the table a.,

pipe rigid on a bench or other stationary object while the pipe is being tapped or otherwise operated on and the primary object of the invention is to so vimprove the construction lof these devices that a more convenient and generally desirable tool will be provided, one which can be used with greater ease and speed and one which will be more effective in the performance of its function of holding the pipe immovable.

p' To these various ends my invention consists of certain improved features of construction and combination and arrangement of parts,

l that will be more fully described hereinafter `and finally embodied in the claims.

In the accompanying drawings:-Figure 1` represents a perspective View of my appliance showing a pipe grasped thereby; Fig. 2 a longitudinal section of the same and under similar conditions; Fig. 3 a detailed perspective ,of one of the binding or gripping blocks;

Fig. 4 a similar view of a second binding or gripping block; Fig. 5 a cross section taken longitudinally through the pipe.

The reference letter a indicates the bench or table to which I preferV to apply my improvements when in use, and b the pipe, `which I have shown as gripped.

The invention isv constructed of a longitudinal frame c, formed by preference of malleable iron and with its center heavier than the ends. Formed integral with or rigidly secured to the left hand side of the body o, and projecting out laterally therefrom, are the arms or studs c', which are provided with the clamps or bolts c2, by which they may be and in consequence thereof, the body rigidly secured.

d indicates a notch' oyrecess, which is formed in the upper/e ge of the body and `midway its ends/and which extends down into the body for'a distance equal to fabout onehalf itsdepth. In this recessthe grip blocks is adapted to t, and to have a vertical move ment therein. This' block, eis shown in detail in Fig. 3, and has the transversely exuated by the threaded spindle f. This latter device operates in the internallythreaded opening g of enlarged portion g of the body c, and consists of a threaded spindle having its lower end projecting down from the body portion of the device, and provided with a crank arm h, by which it may be operated.- Upon screwing the spindle f up into the opening h, its upper end will be made to forcibly engage the lower portion of the block e, and force ityupwardly.- f

vl and k indicate the additional and remainother, and each of which consists of the bars Z, arranged one on each side of the body c` and pivotally connected thereto and to each other by means of the ,spindle Z. These bars are two for each gripper, and. have their upper ends enlarged for the reception of the spindles m and n upon which the gripper blocks n and the pawls m arey respectively mounted. The gripper blocks n are each provided at their outer ends With the toothed concave face n2, and at their inner or rear ends with the detent n3, which latter device is adapted to engage the rounded upper end of the pawls m, while the faces n2 are designed to bind against the pipe. By means of the detents rta the blocks n are prevented from moving too far upwardly, `and thus becoming disarranged to ,an extent whichA will tend to make it hard to readj ust them quickly.

The pawls m are adapted to extend downwardly and outwardly, andare formed with the points or studs m2 These points, tmiare adapted to engage the ratchet teeth o of each end of the body c, and

on their lower ends.

such teeth are formed in two sets, one for 4 each pawl and on the upper edge of the body. Thus it will be seen that the bars l,

comprising the body portion of the j v grippers i and lo, are rigidly secured to each other and roo made to operate in unison by means of the and that these in addition, the funca ing grippers, which are duplicates of each tion of pivotallymounti-ng the-grippers,.the gripper-blocks andpawls respectively; e

To use my appliance, the spindle f is screwed down as far as possible, so asto-allow block e to retreat into its recess, whereupon the pipe is placed upony thesaid block, e, and the grippers i and 7c Swin'gtoward it," so that the faces n2 of their blocks n, will engage the pipe. The pawls lm, are then swung' inwardly, and made to engage the notch nearest the pipe, which their length Will permit, after which spindle "f 4is 'operated to raise block e, which will force lthe pipe upwardly and into engagement with the' blocks"` n' of grippers fi and 7c As this movement continues, the'- grippers" tend to move ont later- "1 all-y, and are prevented f-ro`in `sojdoin'g by. meansof their" p'awls, which hold them incai pableof sn'ch movement; Thus the pipe is` forced upwardlyagainetthe then imnovab'le l" laxing the-press-re-On blocky By this lat l. In a-pipe gri-p,the combinationfof abeciy',l two grippingblocks pivotally connected thereto so as to swing toward and from each other, v

pawls -pivotally' connected *to eaidV blocks` r whereby they may-be'lvocked again-stthe'ppe, t a third gripping .block adaptedtomove toward the adjacent ends of the first two, and ascrew spindle operating with the last named block, whereby it may be so moved, and wherebytheipi-pe may v-be=y wedged between the said blocks, siib'stantially as described. 2. In a pipe grip, the combination of a body, two pairs of bars pivoted thereto and adapted to move toward and from each other, gripping blocks pivoted to the bars and adapted to engage thef'pi'pe,paw1s=1pivoted tdt-he bareland operating,with ratchet teeth on the body, to vkeep the heads so engaged, a third block'arranged to move toward the .adjacenty endsofgripped betwee Ithe"s'efv'e'rlblocks, isbstan:

trau-y fis describe .f

1 gripping-1010ercapebieof moving'towaifdea' Tand ad apted to; clamp' the-pipe between 'the' several blecks,snbstantially as des''cri'bedgfA the'presenceof' two witnessesg j Y p p JOSEPH LANE. "'Witnesses: l

' W. B. BABc'ooK, e

D'. T. HENDERSON@ f `3. Iliapipeg-rip,ftlrecombination of:alib'edy',` i'two gripping-"blocks --pivotally connee'tedff-Ii th'ereto' and cap'ablerof independent' adjiiste `I `ment toward' and f rom yeach' other and' of be'a v i iing secr'ed atsnch ad'jstrrientarid ath'ird In" testimony that I c'laifnriy `.the foregoing" a's 1' niy own I have hereto affixed my 'signatirre'in from the adjacent ends of therst biocks L@

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