US506372A

US506372A - Pipe-tongs

Info

Publication number: US506372A
Authority: US
Publication date: 1893-10-10
Anticipated expiration: 1910-10-10

Description

(No Model.)

P. PAULUs. PIPE TONG-S.

m 506,372. Patented Oot. 10, 1893.

fi j. 77 2 I 7 I a Minessss. Q [nu 527m:

UNITED STATES PATENT OF ICE.

PETER PAULUS, OF MILWAUKEE, WISCONSIN.

PlPE-TONGS.

SPECIFICATION forming part of Letters Patent No. 506,372, dated October 10, 1893.

Application filed June 19, 1893.

To all whom it may concern:

Be it known that I, PETER PAULUS, a citizen of the United States, residing at Milwaukee, county of Milwaukee, State of Wisconsin, have invented a certain new and useful Improvement in Pipe-Tongs; and I declare the following to be afull, clear, and exact description of the same .such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings,,which form a part of this specification.

v My invention relates to new and useful improvements in the construction of pipe tongs, and consists in the matters hereinafter described and more particularly pointed out in the appended claims.

In the accompanying-drawin gs, illustrating my invention Figure 1 is a view of my improved device partly in side elevation, and partly in section on line 1-1 of Fig. 2. Fig. 2 is a front elevation of the same.

Referring by letter to said drawings A designates the handle of my improved tool, which is provided adjacent to one end with a transverse slot B for the reception of a movable jaw, as will be presently described. In the end of the handle A adjacent to said slot, is provided a suitable socket a for the reception of the shank of a toothed jaw O. The toothed jaw O is preferably constructed in the manner shown in the drawings with two curved faces provided with suitable serrations or teeth 0 o and is provided at its base with a shank 0 adapted for engagement with the socket a in the end of the handle. A suitable transverse bolt or screw 0 is passed through the end of the handle and the shank of a toothed jaw to secure the latter in place in an obvious manner.

A movable jaw D is provided with a flattened portion D arranged to pass through the slot B in a manner shown more particularly in Fig. 1 of the drawings, and a suitable bolt or pivot 11 is passed through the handle A and through the flattened portion of the movable jaw D to pivotally support said jaw in position within the slot. The free end of the jaw D is provided with a forwardly curved portion 01 arranged to come approximately into line with the apex of the fixed jaw when the two jaws are closed together as in Fig. 1.

Serial No. 478,129. (No model.)

Upon the pivoted jaw D adjacentto the pivotal connection between it and the handle A, is provided an apertured care for engagement with one end of a spiral tension spring E the other end of which is arranged to engage With a similar ear e upon one side of the handle A. Two of these ears 6' are provided as shown in Fig. 1 and located upo opposite sides of the handle. 7

By the arrangement of the bolt d to secure the movable jaw D in engagement with the handle; said jaw may be readily detached from the handle by the removal of the bolt in an obvious manner. If desired a number of jaws similar to the one shown but of differ ent sizes may be employed in connection with one handle, it being necessary in adapting the tool for use upon pipes of greatly diEerent sizes to simply remove the bolt, disengage the jaw D from the handle and substitute a jaw of the desired size. 5

By the described construction of the stationary toothed jaw with two serrated or toothed faces, and the handle with the two apertured ears it will be seen that in case of excessive wear upon one face of the stationary jaw, or injury to the teeth of the same, the jaw D may be removed and replaced in engagement with the handle but upon the opposite side thereof. The apertured ear e being thus caused to project through the slot B upon the opposite side of the handle from that shown and in this case the spring E will be engaged with the other one of the ears e upon the handle in an obvious manner.

By the arrangement of the spring to normally press the movable jaw toward the stationary toothed jaw, the tool is caused to antomatically grasp the pipe or other object upon which it is desired to use it.

By the described construction of the toothed stationary jaw O with the shank O removably engaged with the socket a in the end of the handle, the toothed jaw may be readily disengaged from the handle A and replaced by one of a different shape or size if desired.

In operation the jaw D is first opened to admit a pipe or other obj eot between its curved end d and the serrated face of the stationary jaw 0 when the spring E will cause the jaw .D to bear against the surface of the pipe or other object when by pressure upon the same time, the tool is exceedingly strong and durable. Furthermore, by the detachable arrangement of the stationary toothed jaw and the movable jaw the range of the tool may be greatly increased by the use of an assortment of difierent sized toothed jaws and movable jaws, so that the tool may be quickly and easily adjusted for'use upon pipes of greatly dilferent sizes.

Having thus described my invention, what I claim as new,and'desire-to secure by Letters Patent of the United States, is 1. pipe tongs comprising-a suitable handle provided at one endw ith astationary j awl'having serrated or toothed surfaces upon opposite sides; a transverse slot extending through the haudleadjacent to said toothed jaw, a movable jaw having aforwardly curved freeend, and pivotally engagedwithin said slot and provided upon its end adjacent to said pivotal connection with an apertured extension, and a spring connection between said extension and the handle substantially as described.

2. A pipe tongs comprising a suitable handle provided at one end with a stationary within said slot, and provided at its free end "with a forwardly curved face, and adjacent to its pivotal connection with an apertured extension, and a spring connection between said aperturedextension and a suitable projection upon the zhandle substantially as described.

In testimony whereof I-sign thisspecificationin the presence of two witnesses.

PETER PAULUS.

Witnesses:

"JOHN E. WILES,

"MJM. WILES.