US702919A - Pipe cutter and wrench. - Google Patents

Description

No. 702,9!9. Patented June 24, I902. 4

A. S. BOYD &. G. YEARNELL. PIPE CUTTER AND WRENCH.

(Application filed Feb. 3, 1902.)

(No Model.)

auwuto'as UNITED STATES PATENT OFFICE.

ADAM SIMPSON BOYD AND GEORGE YEARNELL, OF SHENANDOAH,

PENNSYLVANIA.

PIPE CUTTER AND WRENCH.

SPECIFICATION forming part of Letters Patent N 0. 702,919, dated June 24, 1902. Application filed February 3, 1902. Serial No. 92,435- (No model.)

To aZZ whom it may concern:

- and GEORGE YEARNELL,GitizenS of the United States, residing at Shenandoah, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Pipe Cutters and Trenches; and we do declare the following to be a full, clear,

and exact description of the invention, such.

as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to pipe cutters and wrenches, and contemplates the production of a simply and durably constructed device of this character which by a slight adjustment is converted from a pipe-cutter into a pipe-wrench, and vice versa, and which is adapted also for use as a nut-wrench.

Other novel features possessed by our invention are set forth in the following detailed description, in which reference is made to the accompanying drawings, illustrating the invention in its preferred form.

In the drawings, Figure l is a perspective view of a pipe cutter and wrench embodying our invention. Fig. 2 is an enlarged view, partly in section, of the upper portion of the device. Fig. 3 is an elevation of the oppo site side of the fixed jaw. Fig. 4 is a sectional view on line 4: 4; of Fig. 2.

Referring to the drawings by letter, A denotes the body of the device, which has at its upper end a fixed jaw A and at its lower end an apertured projection a. The aperture of the extension is screw-threaded and receives the screw-threaded upper end of a handle-rod The fixed jaw A is preferably at an acute angle to the body A. The gripping-teeth or serrations e e are on a plate E, fitted to the under and outer faces of the fixed jaw and removably secured to the latter by a screwf,

passed into the end of the jaw. This serrated or toothed plate, which cooperates with serrations or teeth 0 c on the movable jaw to grip a pipe or a nut, is easily removable to permit the sharpening of the serrations or teeth and when much worn may be replaced by a similar plate.

In the fixed jaw is an opening a, and in the plate E is a similar opening 6, registering therewith. These openings are occupied by a cutter-wheel G, loosely mounted on an axle h, the ends, of the latter passing through curved slots a a in'the fixed jaw and plate. On one end of the axle is a fixed head it of largerdiameter than the width of the slots, and the other end of the axle is screw-thread ed to receive a nut 71 having a milled periphery.

77.3 is a metal washer interposed between the nut 72? and the side of the fixed jaw, the washer having a portion of its aperture squared to engage a squared portion of the axle, whereby they are rotated in unison.

In practice when the device is to be em ployed to cut a pipe the cutter-wheel is moved to bring its periphery through the opening 9 and below the plate E, the axle in this position of the wheel resting in the lower end of the slots a To permit of the described movement of the wheel, thenut h is first loosened, and after the adjustment the nut is tightened to maintain the-wheel in cutting position. The operation of cutting will be readily understood. The movablejaw is moved against the work by turning the handle-rod, this being done from time to time as the cut deepens. In the upper wall of the slots of is an offset (4 providing a shoulder, which receives the.

shown in dotted lines in Figs. 2 and 3, after which the nut is tightened. This adjustment of the wheel leaves the teeth or serrations of the plate E free to grip the pipe or nut, as will be understood.

The movablejaw C is provided between the teeth or serrations c and its flanged inner side with an upwardly-inclined plain or untoothed surface 0 The function of this surface is to allow of the ready turning of the device on the work to secure anew hold when the device is used as a wrench and when employed as a cutter to enable the turning of the device with the minimum of friction. In the use of the device the work is wedged between the surfaces of the two jaws, the jaws having surfaces of different angles, and the work is thus readily released when the device is reversely turned.

\Ve claim as our invention- 1. In a device of the class described, abody terminating in a fixed jaw, a removable serrated plate seated at its inner end in a recess in the body and having an upturned outer end secured to the outer end of the jaw, and

a movable jaw having flanges flanking thebody.

2. A convertible pipe cutter and wrench consisting of a body, an upper jaw, a cutterwheel in said jaw having axles movable in curved slots to adjust the wheel into idle and cutting positions, and means for maintaining the adjustments.

3. A convertible pipe cutter and wrench consisting of a body, an upper jaw having an opening and flanking curved slots, offset-s in the slots near the lower end thereof, a wheel in said opening, a headed axle for the wheel passed through the slots, and a nut on the threaded end of the axle whereby the wheel may be adjusted and maintained in idle and cutting positions.

In testimony whereof we afix our signatures in presence of two witnesses.

ADAM SIMPSON BOYD.

h GEORGE YEARNELL.

mark \Vitnesses:

' HARRY TEMPEST,

WILLIAM PATTERSON.

Images