US549841A - benade - Google Patents

Description

(No Modl.) 2 sneets-sht- 1.-

P. H. BBNADR TUBE 0R PIPE GUTTER.

/NVENTOH A TTOHNE YS.

WITNESSES.'

`2 sheets-smv. 2.

.Dm mm Aw NE .EP BH Ew, En U T uw. d o M `No.'549,841. Pamgntealvov. 12,1895.

A TTOHNEYS.

WA/TNESSES: @al 165W.

M. PMUTOUTNQWASHINGIDN. D.C.

UNITED VSTATESv PATENT OFFICE.

PATRICK H. BENADE, OF PNXSUTAWNEY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO ELLISVIRVIN ROGERS, 0F SAME PLACE.

TUBE OR PIPE CUTTER.

sPEoIFIcATIoN forming part of Letters Patent No. 549,841, dated November 12, 1895. Application ledtuiy 23,1895. serai rottami. (No man.)

To all whom, it may concern: Each frame C is engaged bythe free end of Be it known that LPATRICK H. BENADE, of a spring E, extending along a recess Aformed PunXsutawney, in the county of Jefferson and on the inside of the cylinder A to connect at State of Pennsylvania, have invented a new its outer end with a collar F, set in a recess 55 5 and Improved Tube or Pipe Cutter, of which in the cylinder A and secured therein by the following is a full, clear, and exact descrewing up the head G, provided on its outer scription. end with a polygonal offset G' to permit of The object of the invention is to provide a applying a wrench on the head G to turn the new and improved tube or pipe cutter which cylinders A and A' and carry the frames C V6o 1o is simple and durable in construction, very along, the latter being swung outward by a effective in operation, and arranged to secone H to move the cutting-edges of the curely hold the device in place during the wheelsD in engagement with the pipe or tube. cutting operation and to insure an automatic Normally the springs E hold the .frames C and positive feed. l inwardly, whereby the cutting-edges of the 65 I 5 The invention consists principally of cutwheels D'do not extend beyond the peripheral ters adapted to be engaged by a coneto press surface of the cylinders A A', so as to permit the cutters outward and into the work., the ofconveniently placing the latterin the pipe cone lhaving a shank screwing Yin a sleeve or tube to be cut. with exterior right'and left hand threads en` The cone H extends centrally in the cylin- 7o 2o gaged by nuts carrying clamping-levers. der A' and rotates with the latter, and at the The invention also VconsistsV of certain parts same time has a longitudinal movement and details and combinations of the same, as therein, the cone being provided with a longiwill be fully described hereinafter, and then tudinal keyway H', engaged by a feather-key pointed out in the claims. A3 on the inside'of thecylinder A'. rIhus 75 2 5 Reference is to be'had to the accompanying when the latter is turned the cone H is rodrawings, forming a part of this specification, tated with it, and at the same time is free to in which `similar characters of reference inbe fed forward to move with its apex in endicate corresponding parts in all the figures. gagement with the three frames O to swing Figure 1 is a plan view of the improvement. the latter outwardly against theb tension of So 3o Fig. 2 is asectional side elevation of the same the springs E.

on the r line 2 2 of Fig. l. Fig. 3 is a. cross- The base of the cone H is provided with a section of the same on the line 3 3 of Fig. 1. threaded shank H2, screwingin a sleeve I, pro- Fig. 4 is a like view of the same on the line vided at its forward end with a head I', iitting 4 4c Fig. l. Fig. 5 is a Vsimilar view of the against the end of the cylinder A and held 85 3 5 same on the line 5 5 of Fig. l. Fig. 6 is a loosely thereon by a cap A4, screwing on the like view of the same on the lineG 6 of Fig. said cylinder A'. The sleeve I is provided 2. Fig. 7 is a face View of the disk for holdwith alight-hand external screw-thread I2, ing the gage-ngers. Fig. 8 is a similar view adjacent to which is arranged a left-hand of Va disk for moving the gage-fingers, and screw-thread I3, and both threads are en- 9o 4o Fig. 9 is a sectional side elevation of an eX- gaged by nuts J and K, respectively, of which tension-head. the nut J is provided with lugs J', on which The improved tube or pipe cutter is proare fulcrumedthe clamping-leversL, adapted vided with two cylinders A and A', placed to engage the inside of the tube or pipe to suitable distances apart andconnected with clamp the nuts in place. 45 each other by rods B, arranged in a circle and The free end of each lever L engages a placed equal distances'apart, as plainly indilongitudinal groove K' in the nut K, and the cated in Figs. 3 and 4; On the rods B are rear ends of the said levers are provided fulcrumed the frames C, extendingloosely bewith notches L', engaged by a helical spring tween the adjacent ends-of the cylinders A N for pressing the free ends of the levers Ico 5o and A and forming journals for the cutterforwardly and outwardly in engagement with wheels D, adapted to cut a pipe or tube. the inner surface of the tube or pipe to be cut.

A cap 0 screws at the rear end of the nut .l to protect the shank 112, as well as the sleeve l, from dust, shavings, &c.

On the cylinder A is arranged a gage provided with gage-fingers P, adapted to set the cutters D to the proper point at which the tube or pipe is to be cut off, the said fingers being adapted to rest against the end of the boiler or other device on which the tubes are employed. lach finger P is provided with an arm P', having a pivotpin P2 engagingan aperture in a disk Q, on which is mounted to turn a second disk R, formed with a flange R', having recesses R2 for the passage of the arms P'. The disk R is also provided with a segmental slot R3, into which projects a pin or screw w', held in the other disk Q.

The purpose of opening and closing the fingers P is to keep said fingers as close to the tube as possible loosely. As the tool is adapted to cut several sizes, should the fingers be made rigid, to suit the largest size of tube to which the tool is adapted, the gage would have to be removed in many cases on the smaller sizes on account of the closeness of the tubes to the side and crown sheets in.- side of the fire-box.

New by reference to Fig. 5 it will be seen that when the operator-turns the disk R it will cause a swinging of the arms P', carrying the fingers P, so that the latter will move outwardly or inwardly away from or toward the cylinder A, according to the direction .in which the disk R is turned.

Both disks Q and R are mounted looselyon a sleeve S, formed at one end with a flange S', abutting against the outer face of the disk Q. On the other end of the sleeve S is held a collar S2,engaged by a set-screw S3, also screwing through the sleeve S, so as to engage the cyl inder A and securely hold the collar,and with it the gaging device, in position on the cylinder A. By loosening the screw the collar S2, with the gage, can be shifted lengthwise on the cylinderA to the desired position to bring the cutting-wheels D to the point at which the pipe is to be cut. The set-screw S3 is then screwed up to fasten the gage in place.

The operation is as follows: Then the several parts are in the position shown in Fig. 2 and the device has been inserted in the tube or pipe to be cut, to bring the cutting-edges of the wheels D opposite the point at which the tube is to be cut off the operator by turning the wrench or other tool applied to the head G causes the cylinders A and A' to revolve and the nuts J and l( to screw toward each other on the sleeve I. In doing so the free ends of the levers L travel up the inclined bottoms of the notches K', so that the free ends of the levers move very firmly in contact with the inner surface of the pipe or tube. lVhen this has been donc, a further turning of the cylinders A and A will cause the shank H2 in the sleeve Lheld in a locked position by the nuts J and K, to screw in the said sleeve, and consequently feed the cone H forward in engageinent with the frames C to move the eutting-edges ot the disks D in engagement with the inner surface of the pipe or tube. As the turning continues, the cutting-wheels D are carried around, and at the same time are fed outwardly, so to finally ca-use a complete cutting ofi' of the pipe.

It is understood that the cone Il steadily advances on the turning of: the cylinders, the con e at the same time turning with the cylinder A', owing to the feather-key Ai engaging the kcyway Il'. YVhen the tube or pipe has been eut, the wrench or other tool is turned in the opposite direction, so as to cause a return move ment of the cone ll and a final turning ofthe nuts J and K away from each other to release the cla1nping-levers L from the pipe and permit of withdrawing the entire tool from the cutoff pipe.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. A tube or pipe cutter provided with outwardly movable cutters and having means of rotation at its outer end, a longitudinally m ovable cone in the inner end for projecting the cutters and automaticallyoperated clamping devices at the inner end of the tool to engage the interior of the tube to be cut and cause the cone to be moved forwardly and backwardly according to the direction in which the tool is rotated, substantially as described.

2. A tube or pipe cutter, provided with cutters journaled on pivot fra1nes,a cone adapted to engage the said frames to swing the same outwardly and to press the cutters into the work, the cone having a threaded shank, a sleeve in which screws the said shank,where by when the cone is rotated it screws in or out in the sleeve and moves in or out of eni gagement with the said pivot frames, and nuts screwing on exterior left-hand and right-han d threads on said sleeve, the nuts carrying clamping levers adapted to engage the inner side of the tube, and hold the said sleeve stationary, substantially as shown and described.

A tube or pipe cutter, provided with cutters journaled on pivot frames, a cone adapted to engage the said frames to swing the same outwardly and to press the cutters into the work, the cone having a threaded shank, a sleeve in which screws the said shank, and automatically operating clamps carried by the sleeve to engage the interior of the pipe to be cut and hold the sleeve stationary, whereby when the cone is rotated it screws in or out in the sleeve and moves in or out of engagement with the said cutter frames, and springs engaging the said cutter frames, to swing the latter inwardly on withdrawing the cone, sub stantially as shown and described.

4f. A tube or pipe cutter comprising two aligned cylinders, rods connecting the ad jacent ends thereof, swinging cutters pivoted on the rods, springs within the outer cylinder normally holding the cutters retracted, a cone within the inner cylinder and engaging the IIO said cutters to move them outwardly, said cone having a threaded shank, an internally threaded sleeve coupled loosely to the end of the inner cylinder and in which the cone shank is turned by the rotation of said cylinders, and clamping devices carried by the sleeve to engage the interior of the pipe to be cut and hold said sleeve stationary, substantially as described.

5. A tube or pipe cutter, comprising aligned cylinders connected with each other at their adjacent ends by rods, frames journaled on the said rods and each carrying a cutter wheel, a cone provided with a longitudinal key-Way engaging a feather key in one of the said cylinders, the said cone being provided with a threaded shank, a sleeve held on one of the cylinders and in which screws the said shank, the said sleeve being provided at its outside with a right and a left-hand thread, nuts screwing on the said sleeve threads, and levers carried on one of the nuts and engaging inclined grooves on the other nut, substantially as shown and described.

6. A tube or pipe cutter, provided with a gage comprising two disks mounted to turn, iingers each provided with an arm having a pivot pin engaging one of the disks, the said arm or" each finger passing through a notch in the rim of the other disk, whereby when the latter is turned a swinging motion is given to the arms, substantially as shown and described.

7. A tube or pipe cutter, provided with a gage comprising two disks mounted to turn, fingers each provided with an arm having a pivot pin engaging one of the disks, the said arm of each finger passing through a notch in the rim of the other disk, whereby when the latter is turned a swinging motion is given to the arms, a sleeve carrying the said disks, and a set screw for fastening the sleeve in place, substantially as shown and described.

8. A pip-e cutter comprising two aligned cylinders, rods connecting the adjacent ends thereof, swinging cutters pivoted on said rods, a collar in the outer end of the outer cylinder, springs extending therefrom to the cutters to hold them normally retracted, an operating head screwed into the outer end of the said outer cylinder and holding said collar in place and means for projecting the cutters as the cylinders are rotated, substantially as described.

PATRICK H. BENADE.

Witnesses:

WM. C. LoRRENcE, J. M. DAVIS.

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