US766844A - Pipe-cutter. - Google Patents

Description

No. 766,844. PATENTED AUG. 9, 1904 A. RODEFBLD & A. H. RODEPELD. JR.

PIPE CUTTER. APPLICATION FILED MAY14,1904.

no MODEL.

iJIIl Q 'CQ/WpQ in van farm, 5%

Wii'nemrex.

f'fiarney. I

UNITED STATES Patented August 9, 1904.

PATENT OFFIC AUGUST RODEFELD AND AUGUST H. RODEFELI), JR, OF RICHMOND, INDIANA.

PIPE-CUTTER.

SPECIFICATION forming part of Letters Patent N 0. 766,844, dated August 9, 1904.

Application filed May 14, 1904.

To all, whom it may concern.-

Be it known that we, AUGUST Ronnnnnn and AUGUST H. RoDnEELn, J12, citizens of the United States, residing at Richmond, in the county of Wayne and State of Indiana, have invented certain new and useful Improvements in Pipe-Cutters; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to pipe-cutters and is an improvement over the pipe-cutter shown and described in Patent No. 598,159, granted to A. Rodefeld February 1, 1898.

The object of the present invention is to increase the range of usefulness of the said pipecutter heretofore patented; and to this end the present invention relates to means for changing the position of the cutting-wheels on the movable jaw so as to operate upon a greater variety of pipes or pipes of different diameters than heretofore possible; and, further, the present improvements relate to the movable nut on the operating-handle, with such changes that enable a changing of the cutter from large to small pipes and vice versa with greater facility.

Preceding a detail description of the invention reference is made to the accompanying drawings, of which- Figure 1 is a side elevation of our improved pipe-cutter. Fig. 2 is a side elevation of the movable jaw detached. Fig. 3 is a top plan view of the movable jaw as shown in Fig. 1, the handle appearing in section. Fig. 4 is a detached plan view of the reversible arm removed from Fig. 1. Fig. 5 is a top plan View of the arm removed from Fig. 2.

In a detail description of the invention similar reference characters indicate corresponding parts.

. 1 and 2 respectively designate the stationary and movable jaws of the cutter, which are bifurcated, as shown in Fig. 3, and are Serial No. 207,907. (No model.)

opening which receives the end 7 of the operating-handle 28, said end being held by a nut 8, which screws onto the extreme end of said handle. This connection between the end? of the handle and the end of the jaw 2 is such that permits the handle to be turned and the jaw 2 to swing upon the trunnions 5 when not in operation.

9 designates two non-adjustable cuttingwheels mounted in the jaw 2 and engaging one side of a pipe 10. The jaw 1 may contain one cutting-wheel 11, as shown in Figs. 1 and 1, or it may contain two cutting-wheels 12, as shown in Fig. 2, according to the diameter or size of pipe to be operated upon.

13 designates a reversible arm, which is pivoted between the sides of the jaw 1 by means of a pivot-pin 18. This arm supports the cuttingwheel 11 between trunnions 1 1, which are integral parts of said arm. The arm is reversible to change the position of the cutting-wheel 11 according to the diameter of pipe, thus making a three-wheel cutter suitable for a greater vari ety of pipes than heretofore. As shown in Fig. 1, the cutting-wheel 11 is adj ustcd to a position to take in the greatest diameter of pipe. In the smallest diameter of pipe the position of the cutting-wheel 1 1 is reversed to that shown in dotted lines. When in'either of the positions shown, the trunnions 14 enter recesses 19 and 19 on the inner edges of the jaw 1, and the cutting-wheel 11 is held in such positions by a spring 16, which lies within recesses 15 in the sides of the arm 13, and thus exerts a pressure to keep said arm in either position. The spring 16 is secured at one end in a lug 17, that joins the two sides of the jaw l.

20 designates a different form of arm, which is adapted to hold two cutting-wheels 12 and which is pivotally supported at its center in the jaw 1 by a pin 21. By the application of this form of arm with two cutting-wheels the implement is transformed into a four-wheel cutter and is designed to operate upon the largest diameter of pipe-say from six inches upwardthe four cutting- wheels 9 and 12 spanning the larger sizes of pipe on opposite sides more effectively than a pipe-cutter having a less number of cutting-wheels. In operating the pipe-cutter as a four-wheel cutter the arm 20 readily enables the cutting-wheels 12 to locate at proper points on the circumference of the pipe, and the pipe is gripped at four opposite points in a most substantial manner. The jaw 1 is, as heretofore, provided with hooks or recesses 22, which engage trunnions 23, 24:, and 25, projecting from opposite sides of an elongated nut 26, which nut engages the screw-threaded portion 27 of the operating-handle 28. By means of this elongated nut 26 with the three trunnions projecting from opposite sides thereof throughout the length of said nut the jaw 1 may be locked with either set of trunnions, according to the diameter of pipe. For example, the

cutter, as shown in Fig. 1, is now operating upon a pipe of the largest diameter. Consequently the jaw 1 is locked with the outermost set of trunnions 23. In operating upon a pipe of the smallestdiameter the said jaw would be locked with the innermost trunnions 25 and the cutting-wheel 11 would be reversed in its position or shifted to a position to cause the trunnions lt to engage the recesses 19', thus bringing the said cuttingwheel in a position approximately in line with the space between the two lower cuttingwheels 9 9 in order that the pipe operated upon may be firmly held between the three wheels.

Having described our invention, we claim- 1. In a pipe-cutter, an operating-handle screw-threaded a portion of its length, a stationary jaw and a movable jaw pivotally connected, the stationary jaw having a permanent connection with said handle, and the movable jaw having hooks upon its free end, an elongated nut upon the screw-threaded portion of said handle, a plurality of trunnions projecting from said elongated nut throughout the length thereof and adapted to engage the hooked ends of the movable jaw to hold the cutter for different sizes of pipes.

2. In a pipe-cutter, an operating-handle screw-threaded a portion of its length, a stationary jaw pivoted to said handle, said jaw supporting non-adjustable cutting-wheels, a movable jaw, a pivotal arm on said movable jaw, said arm supporting a cutting-wheel, and an elongated nut on the screw-threaded portion of'the operating-handle, said nut having a plurality of trunnions projecting laterally therefrom throughout its length, said trunnions engaging the free end of the movable jaw according to the diameter of the pipe operated upon.

3. In a pipe-cutter, an operating-handle screw-threaded a portion of its length, an elongated nut on said screw-threaded portion, said nut having a plurality of trunnions project- 1 ing laterally therefrom throughout its length, .a stationary jaw swiveled to said handle, cutting-wheels on said jaw, a movable jaw adapted to interlock with different sets of trunnions on said elongated nut to increase or decrease the diameter of the opening between the jaws,

and a reversible arm mounted on said movable aw, said arm supporting a cutting wheel which is reversible as to its position.

4. In a pipe-cutter, a stationary and a movable jaw, the latter having recesses in its inner side, a reversible arm mounted in said movable jaw, said arm having trunnions which venter said recesses in said reversed positions,

Images