US244420A - Stove pipe threadeb and beader - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

E. 44,341.1.. Y STOVE PIPE THREADER AND BBADER.

No. 244,420. Patented July 19,1881'.

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2'Sheets-Shee1s 2. E. lVLBALL. STOVE PIPE THREADZER AND BEADER.

(No Model.)

Patented July 19,-A 1881;

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n PETERS. Hummm-1MM" 'UNITED STATES PATENT OFFICE.

EDWARD M. BALL, OF HATLEY, ASSIGNOR TO SAMUEL CLEVELAND, OF NORTH COATIGOOK, QUEBEC, CANADA.

STOVE-PIPE THREADER AND BEADER.

SPECIFICATION forming part of Letters -Patent No. 244,420, dated July 19, 1881,

` Application filed June 1,1881. (No model.)

To all whom t may concern:

Be it known that 1, EDWARD M. BALL, a citizen of Canada, residing at Hatley, in the county of Stanstead and Province of Quebec, haveinvented certain new and useful Improvements in Stove-Pipe Threaders and Beaders; and I do hereby 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 tothe accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification, and in which- Figure l is a side elevation of a machine embodying my invention. Fig. 2 is an elevation showing that end which is at the left in Fig. 1. Fig. 3 is a vertical section of the same, showing those parts which are to the rightin Fig. 1. Fig. 4 is a rear-end view of the handcranlr and operating-gears; and Fig. 5 is a longitudinal central sectional view.

This invention 'relates to improvements in stove-pipe machines, and has for its object the forming of a screw-thread and forming the usual bead at one and the same time on the ends of stove-pipe; means for giving the requisite pitch to such screw-thread; means whereby the beading-rolls are maintained at the same relative position with that of the frame of the machine; means for permitting the seams of the pipe to pass readily between the beading and screw-threadin g rolls; in the face-plate and its adjustment devices, whereby the distance of the bead from the ends of the pipes may be varied; and means whereby the power of the hand on the hand-crank is greatly augmented.

rlhe nature of the invention consists of the devices substantially as hereinafter more fully set forth and claimed.

In the accompanying drawings, A is the frame of thc machine, which supports the shafts B and C, a portion of whose rear ends is screw-threaded, and which work in correspondingly screw-threaded bearings in the rear vertical portion of the frame A. One of these shafts has a right-hand thread, the other a left-hand thread, the drawings representing the shaft B provided with righthand thread.

The forward vertical portion of the frame Ais bifurcated, as shown in Fig. 3, in which the boxes q r are fitted. The box 1" rests in the bottom of the bifurcation, while the box q is separated from the box r by means of a spring, s. Lateral motion of the said boxes is prevented by lateral anges on each box, which overlap the edges of the frame A, which thus serve as ways for the boxes.

Superimposed on the box g, and lying between it and the follower g, is a spring, h, preferably of rubber, which may be compressed by means of the hand-screwf, serew-threaded and workingin the cap t. The lower extremity of this hand-screw bears on the top face of the follower g.

Securely fastened to the shaft B, immediately forward of the frameA, is the male screwthreading roll l. Just below this, and'similarly secured to the shaft C, is the female screw-threading roll m. The ends of the shafts B and C, which project forward of the rolls Z in, are provided with feather-keys p p', which fit in keyways in the beading-rolls j 7c, in order to compel the said rolls to revolve when the shafts B and G are put in motion. By means of spring-bars a o, which hook into the circumferential grooves near the forward ends of the beading-rolls j la, the said beading-rolls are maintained at the same distance from the frame A, the shafts B and C sliding freely through when the machine is at work.

The face-plate D is made adjustable by means of its supporting-screwst", projectingthrough holes in the frame A for that purpose. The said screws are provided with nuts, two to each, which are screwed against the sides of that portion of the frame A, as shown in Fig. l, thus making it possible to adjust the faceplate Dat therequired distance from the frame A, and at the desired anglewith the same.

To cause the shafts B and G to revolve at the same relative rate of speed, they are provided with gear-wheels a, b, of equal diameters and securely fastened to their respective shafts, and to prevent their Working relations from being injuriously affected by the varying dis- IOO rear as possible, and yet have them within the vertical portions of the frame A.

The rear extremity of the shaft B carries, loosely mounted thereon, apinion, c, to which the hand-crank eis attached in anysecure manner. This pinion gears with a larger wheel, d, keyed or otherwise fastened to the shaft C. It will thus be seen that the power of the hand on the crank e will be augmented in proportion to the difference iu the sizes of the gears c d.

When screw-threading and beading stovepipe it is placed on the lower rolls, as shown in Fig. 1, E representing a longitudinal section of pipe being operated on. The handscrew f is then screwed down until the pressure is sufficient to properly groove or thread the pipe, when the handle e is turned in the direction of the arrow in Fig. 4, which will give aright-handcd thread on the pipe. In passing seams of the pipe between the rolls the spring h will yield sufliciently to prevent damage to the machine.

For left-hand screw-threading, the pipe is placed on the upper rolls, when the operation of the machine will be similar in all respects.

Vhen it is desired to screw-thread pipe without beading, the beading-rolls may be removed.

When it is desired to bead pipe without screw-threadin g, the screw-threadin g rolls may be removed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of the frame A, shafts B C, provided with threading-rolls and moving in screw-threaded bearings, and gearing a b c d, the gear c revolving loosely around its shaft, as and for the purpose set forth.

2. The circumferentially-grooved beadingrollsj k, in combination with shafts B C,bars n o, and frame A, as and for the purpose set forth.

3. The circumferentially-grooved beadingrollsy k, in combination with shafts B C, bars u o, adjustable face-plate, and frame A, substantially as shown and described.

4. The combination of the screw-threaded shafts B C, moving in screw-threaded bearings, rolls j 7c and im, adjustable plate D, the shaftB, held down at its outer end by a yielding bearing, and means for operating said shafts B C, as and for the purpose set forth.

In testimony whereof I aix my signature in presence of two witnesses.

EDWARD M. BALL.

Witnesses:

W. H. GILMAN, E. S. WIsWELL.

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