US1138395A - Combined pipe wrench, cutter, and die. - Google Patents

Description

E. A. NELSON. COMBINED PIPE WRENCH, CUTTER, AND DIE.

APPLICATION FILED DEC. I5, i914.

Patented May 4, 1915.

Wl T/I/ESSES.'

E. A. NELSON.

COMBINED PIPE WRENCH, CUTTER, AND DIE.

APPLICATION FILED DEC. 15. 19H- I Patented May 4, 1915.

2 SHEETS-SHEET 2.

W/ T/VESSES:

. vention will hereinafter be more EUGENE A. NELsoN, or 4NEW Yonx, N. Y.

COMBINED PIPE WRENCH, CUTTER, .AND DIE.

Specication of Letters Patent.

Application led December 15, 1914. `Serial No. 577,325.

To all whom 'it may concern.'

Be it known that I, EUGENE A. NELSON, a citizen of the United States, and a resident of the. city of New.York, hattan, in the county and State of New York, have invented a new and Improved Combined Pipe Wrench, Cutter, and Die, of which'the following is a full, clear, and exact description.

This invention relates to plumbers and gasfitters appliances, and has particular reference to an implement adapted especially for use upon the standpipes of gas mains in or along city streets. I do not wish, however, to be limited unnecessarily to any particular use or adaptation of the device constituting the subfect matter of this inventi'on. i l

More definitely stated, amongthe objects of the invention is -to provide a. tool or implement adapted to reach down into a casing beneath a pavement for the manipulation of a gas standpipe, the upper end of which is commonly located below the surface of the pavement lwithin the casing.

The foregoing and other objects of the inscribed and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a side elevation showing the adaptation oi. the' implement to its work in a gas pipe casing and'in the act of turning the nipple with ,respect to the main portion of the standpipe; Fig. 2 1s a detail perspective view indicating the use of the device. in extending the :standpipe in accordance with the filling in or grading of the street; Fig. 3

shows the use of the device as a die; Fig. 4 is a vertical sectional horizontal section of the pipe wrench, the

last four igures being substantially on the corresponding lines of Fig. 4.

The several parts of this device may be made of any suitable materials, and the relative sizes and proportions, aswell as the general design of the mechanism, may be varied to a considerable extent without depart-- ing from the spirit of the invention hereinborough of Man.

fully deused be of such nature as down intov the casing and of .a diameter view on a larger scaley than Fig. 1 and showing the use of theimafter more fully described and specifically claimed.

Referring more particularly to the drawings, I show at 10 a casing secured beneath the pavement 11 and within which is arranged a standpipe 12 of a gas main. In the usual or old practice it is common for access to be had to the gas main through the standpipe at various points for the purpose of pumping accumulations of liquid or sediment from the main, and because of frequent usage or otherwise the threaded upper end of the standpipe soon becomes worn or damaged, rendering the standpipe useless and demanding renewal thereof. In the practice of my invention, however, I make use' of a short section or nipple 13 connected to the main portion of the standpipe by a coupling v14. When, therefore, vthe upper end of the nipple becomes disabled, the nipple may be renewed at slight expense and trouble by' unscrewing it directly from the coupling 14 and another nipple put in its place without disturbing the standpipe or requiring it to be renewed. This operation, however, must be performed below the pavement and within the casing 10; hence demanding that the implementor implements to be insertible smaller than the inner diameter of the casing. y

As shown in the drawings, my implement comprises a head 15 'having secured to the middle portion thereof a strong, upright, hollow stem 16 having any suitable form of handles 17'N at its upper end. To the ends of thehead l5 are pivoted a pair of jaws 18. The general direction or position of the jaws is parallel to each other and extending downwardly, but more specifically each jaw is provided with an inwardly-directedangle 19 adjacent its pivoted end and hence providing for an outwardly and downwardly inclined cam portion between the an- 7 gle and its, lower free end. The jaws are l made of heavy strong material and are preferably of rectangular form in cross section as indicated in Fig. 8, whereby the general strength of the jaws is increased and better facilities are provided for certain operations "described below.

A follower 20is mounted upon the cam portions of .the Jaws and is adapted to be movedalong the same up or down between the angles and the lower ends of the jaws for Patented May 4, 1915.

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the purpose of determining the position of the jaws with respect to each other. Said follower is provided with vertical holes 21 which have loose sliding fit upon the jaws. The follower is pivotally connected to the lowerend of a rod 22, said lower end being smooth and j ournaled loosely in the follower. A head 23 and nut 24 connected to the rod, however, prevent relative longitudinal movement between the rod and the follower. The main portion of the rod above the nut 24 is screw threaded in a cen'- tral hole in the head 15, and the upper end of the rod 22 where it projects through and above the stem 16 is provided with a handle 25 of any suitable nature, whereby it may be rotated for the purpose of forcing the follower up or down with respect to the jaws and head 15.

After the follower is put in place upon the jaws and connected as indicated above to the operating members of thedevice, I connect to the lower ends of the jaws by any suitable means a pair of cutting wheels 26 and a pair of rollers 27, the connections being made with the jaws throughv lag bolts 28 as shown herein. When the tool is in -operating position, the cutters and rollers all lie in the same horizontal lane, but transverse to .the axis of the stan pipe. It is frequently desirable to cut off the damaged upper end of a standpipe for the purpose of re-threading it and applying an extension, or for other purposes. The means just described enables me to so cut and remove the upper end of the standpipe even though it may be located at a considerable distance below the surface of the pavement. To apply the implement to the pipe to be cut, it is projected v downwardly into the casing and the jaws are caused to straddle the end of the pipe as far as desired. By turning downwardly upon the handle 25 and rod'22, the follower 2O will act upon the jaws causing them to approach each other, bringing the cuttingwheels 26 and rollers 27 into action upon the pipe. Then, by rotating the stem and head vby the handles 17 ,'-the cutting wheels will score the pipe and upon successive rotations of the rod 22, increasing the grip of the jaws upon the pipe, the pipe will be severed and the end removed.

I provide a gripping member consisting of a collar 29 large enough to slip over the coupling 14 and provided with an inwardly projecting flange at its upper end and shown as comprising a pair of semi-circular members 30 pivoted to the collar at 31. The purpose of this flange is to constitute a temporary holder for the collar 29 causin it to rest upon the coupling 14. The colar is provided with two pairs of set screws. One pair shown at 32 are adapted to be screwed outwardly radially so .as to grip against the inner surface of the 'casing 10. The other pair 33 are adapted to be turned inwardlyto bind against 'the coupling as shown in Fig. 6. It will thus be seen that the main portion ofthe standpipe and cou ling'will be locked ih positive position in t e casing, rendering it easy to treat the nipple portion of the pipe as desired. As shown in Fig. 2, the anchor member is holding the main por tion of the standpipe and lower'most coupling, and the u per portion of the gure indicates an auxi iary nipple or section put in place to lengthen the standpipe as may be required in the iillin up of a street or the like. The two-part ange 30 makes it easy for the collar 29 to pass an upper coupling so as to engage a lower coupling or to enable the anchor member to be removed from the casing after an upper coupling has been ut in place in making the extension. The gee ends of the flange members() may be locked temporarily in place by set screws 34 acting through slotted ends of the iange members.

After the standpipe has been cut as above described, a new thread may be formed thereon by the use of a die 35 shown in 3 as carried between the jaws and above the cutters and rollers. It will be understood that under ordinary conditions the holders or brackets 26 and 27 will not need to be removed from the lower ends of the jaws. During the mani ulation of the tool for the purpose of cutting the thread, the

handles 17 will be turned to effect the cut and the handle 25 will be turned to lockthe v jaws firmly upon the die 35.

vtoothed blocks 36 are fitted to the free ends of the jaws 18 just above the brackets 26 and l27, these blocks having teeth or serra.- tions adapted to grip the pipe or nipple to be screwed on or 0H ofthe main portion of the. standpipe. The jaws or blocks 36 are of a size radially to grip the pipe or nipple without being interfered with by the cuttlng devices, and they are so shaped as to snugly Iit the free ends of thejaws where they are locked temporarily by set screws 37. .The teeth are so shaped as to grip the pipe when rotated in either direction.

I claim:

1. In an implement of the character set forth, the combination of a head, a pair of jaws pivoted to the ends of the head and extending downwardly, said jaws having downwardly and outwardly inclined por tions, pipe engaging devices carried by the lower ends of the jaws, a follower slidably fitted to the jaws and movable along the inclined portions, means to rotate the head and jaws,land means to move the follower up or down along the jaws' to cause the jaws to move away from or toward each other, said last mentioned means including a rod extending upwardly throu h the head and threaded therein, said rod being journaled n the follower and rotatable independently )f the means for rotating the head and jaws. 2. In an implement of the character set forth, the combination of a head, a stem ex- Ending upwardly therefrom, means to ro- ;ate the stem and head around a vertical axis, a pair of jaws connected 'at their upper ends to the endsof the head and extending downwardly therefrom, said jaws having diverent inclined neete ends, a fo ower mounted slidably upon the inclined portions of the jaws and snugly embracing the same, a threaded rod journaled at its lower end in said follower 1ortions below their oonbetween the jaws and having threaded con- In testimony whereof I have signed myname to this specification in the presence of two subscribingwitnesses:

, EUGENE A. NELSON.

Witnesses GEO. L. BEELER, PHILIP D. RorLHAUs.

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