US1324005A - Torch cutting-machine - Google Patents

Description

W. C. BUCKNAM.

TORCH CUTTING MACHINE. APPLICATION FILED MAY 31, 1918.

1,32%,905n Patented Dec. 2,1919.

2 SHEETSSHEET 2.

BY Z

' ATTORNEY Hudson and State of New Jersey, ha e 1nvented a new and useful Torch Cutting-Ma-c provided beyond one side of the carriage chine, of which the following is a specificawith a worm 16, which meshes with a worm -tion. V wheel 17 on the upper end-of a vertical shaft The invention relates to certain improVe-. 18 mounted in lateral bearings 19 on the ments in center standard, swinging arm gascarriage. On the lower end of said vertical cutting machinery, and comprises specifishaft is another worm 20, meshing with a. cally, though not necessarily exclusively, an worm'wheel 21 on a transverse shaft 22. improved machine for cutting upstanding Said transverse shaft is journaled in bearflanges or along templets of like character, the ings inv lateral arms 23 carried by the censame being an improvement upon and within tral portion of a, bracket 2A of V-shape or w my prior Patent 1,172,933 of Feb. '22, 1916. other suitable open form which projects The objects ar to secure firmness of supdownward from the carriage 13. A vertical port with complete flexibility of movement, shaft 25 is supported revolubly in a (endurability, and compactness, to make postral bearing in said bracket and at its upsible reliable guiding upon a flange and acper end above the central part of the bracket curate and continuous cutting, and to enhas a bevel gear 26 meshing with another able the apparatus to be conveniently enbevel gear 27 on the shaft 22. On the lower gaged and disengaged from the flange. To end of said vertical shaft is a horizontal these ends the. invention may be said to con- 3 d ving h l 8 ic travels p the sist in the. parts, improvements and combinaouter side of the flange 29.

I 1 ticularly pointed any height 'by L 5 on the post 2, carries a rig d .radlal arm upper and lower, 'ers 12 journaled in To all whom it may concern:

resident of Jersey at opposite sides of the arm. Handles 145 WORTHY C. BUCKNAM, OIE J ERS EY CITY, NEW JERSEY, ASSIGNOB TO DAVIS-BOURN'ON VILLE COMPANY, OF NEW YORK, N. Y., A CORPORATION NEW YORK.

TOROH CUTTING-MACHINE.

Application filed May 31, 1918. Serial No. 237,413.

on the carriage enable it to be readilylmoved Be it known that I, WORTHY C. BUCK- to a desired position onthe arm. NAM, a citizen of the United States, and a City, in the county of top of the carriage 13. Its armature shaft is preferably arranged transversely and A sleeve 30 is swiveled on or about the shaft 25 between collars 31, and a rearwardly extending arm 32 is hingedly connected to the vertical swivel by a transverse pivot 33. A rod 34 projecting downward from the hinged arm 32'adjacent its pivot bears a pair of horizontally spaced rollers or wheels 35, which are urged by the weight of said arm and the partscarried thereby to bear upon the inner side of the flange in opposition to the driving wheel'28. Said rollers 35 are mounted upon the of a cross-arm 36, which may be swivelcd upon the lower end of the rod 34, and are in substantially equidistant lateral relation to the axis of the driving wheel.

The arm 32 carries horizontal and vertical torch adjusters, which in turn carry a downwardly extending arm 39 terminating in a vtorch-holding sleeve 40. The arm 39 is angled or directed inward in order to bring the tip 41 of intermediate projections of the axes of the pressure rollers 35 and 'at or adjacent the transverse vertical plane which intersects the 'axis' of the driving wheel.

shown held substantially horizontal, with its tip deflected upward to cut the flange off on a bevel. The angle may be varied by changing the tip, and also by loosening the screw 43 and turning the arm slightly about tions' hereinafter described and more par-.

out in the claims, it'being understood that. parts ofthe invention are not limited to the particular illustrative embodiments. I

In th drawings forming a part hereof:

Figure 1 is a side elevation'of the machine in condition for use; I

Fig. 2 is a sectional end elevation; and

Fig. 3 is an enlarged side elevation of the guiding and torch-bearing structure.

A pedestal 1 carries a vertical post 2, which can be raised and lowered and held at mechanism designated gener ally 3. A vertical hub, member or centerframe 4, mounted rotatablybetween collars 6.. This arm is preferably composed of a pair of rods 7 spaced vertically by strutclamps 8 and connected at their outer ends a terminal piece 9. The long trussed overhanging arm thus constituted is braced by a stay-rod 10 with turnbuckle 11 extend-V mg diagonally from the upper end of the hub member 4 to the terminal piece 9.

The rods- 7 formlongitudinal guides for fore and aft grooved rolla'carriage 13,which may be made of two vertical halves or frames secured together by the axles-of said rollers s PATENT onion.

. Patented nema, 1919.

An electric motor 15 is planted upon the endportions the cutting torch 4:2

The torch 1s i the arm 32 the head 51 upon may be placed entirelyat one side or the pedestal, "so that the machinendoes not In that event, the

it as an axis. A tube/l4 having ,a flaring basal flange 4L5 placed over the shaft 25 immediately above the driving wheel 28 protects said shaft and Wheel from injury by the jets.

The torch-adjusting devices include a carriage mounted to slide horizontally on having a handwheel 46. A second carriage 47 slides vertically on the horizontal carriage, being'actuated by a screw 48 which has a laterally projecting handwheel and shaft d9 geared to it as indicated at 50.- The torch arm 39 is secured to the lower partof the Vertical carriage 4:7. 7

From the foregoing it will be perceived that the depending'structure as preferably constituted comprises twoparts embracing the flange, a primary part which includes the vertical drive-shaft 25 and the feed Wheel 28, and a secondary part flexibly connected to the primary part and carrying the torch, the torch-adjusters and the pair of pressure wheels 35, which bear by gravity upon the flange in opposition to thedriving wheel.

If the machine is used totrim the flange of a boiler head 51, for example, its pedes tal may be placed upon the approximate center of the inner face of the head, and the carriage arm- 6to a position over the upstanding flange.

By lifting the inner part of the depending torch-bearing and flange-embracing structure about theaxis 33, the pressure rollers 35 can be caused toclear the top of the flange. In operation, part, supplemented by an additional weight if desired, acts to hold the said rollers against the inner face of the flange, and consequently the driving roll 28 quate traction is insured. The torch is then adjusted to the desired height and distance from the flange, its heating jet is lighted and the oxygen cutting jet turned on, and the driving motor 15 is started' This causes the driving wheel to revolvein contact with the I outer face of. the flange and thus to propel 50 thetorch aroundits I circuit. In order-to avoid'm'oving th'e'machine, or other part to be operated stand upon the work'. driving Wheel 28. acts upon the inner .side of the flange, and the pressure wheels 35 and the torch are disposed at its'outer side. I Under such conditions a section of the flange ,is trimmed, the. cutting is stopped and the work is shifted in order. to bring another section of the the torch. The machine may also be used to trim flanges of smallerextent surrounding internal openings in a boiler-head or under the control of a screw 38 'plet, and the,

13 is moved upon the radial the weight of this g against the outer face, with substantial pressure, so that adeflange within the range of 1 vertical axis,

the like. In any case the free movement in and out of the carriage 13 upon the'radial primarily intended upstanding flanges or metal beapparent that it may be means combination, a center support, aradial arm swinging upon the center support and presenting a longitudinal guide-way, a carriage movable freely on the guide-way, a torch whereby the carriage moves automatically in and out on the arm-and swings the same in accordance with the course pursued by the feed wheeL' 2, Amachine for cutting invarious direcbe pointed downward by purposes either in the illusand a feed wheel carriedby the carriage, and power means for driving the feed wheel,

tions by means of gasescomprising, in combination, a center support, aradial arm swinging upon the center support and presenting a longitudinal guide-way, a carriage movable freely on the guide-way, a torch and a feed wheel carried by the carriage, and a motor and gearing fordrivingthe feed wheel carried wholly by the carriage, wherev moves automaticallyin and A by the carriage out on the arm and swings the same in acwheel. I

. 3. A machine of radial arm swinging thereon, a carriage freely movable on longitudinal' guides on said arm, and a depending and adapted to travel on an upstanding flange and means fordriving the feed wheel, whereby the carriage moves in and out on obedience to the course pursued by the self-propelledstructure along the radial arm in 4-. A machine for trimming upstanding the character described, I comprising a center support, an overhanging too torch-bearing structure on the carriage havmg a feed wheel flanges-by means of gases, havinga center 7 support, a depending self-propelled I structure and means for supporting the same from the center wit'h freedom to swingabout the centerand to'move in and'out with'reference thereto as the depending structure travels, along the flange, said depending structure having a driven feed; wheel on a and. torch-supportingv means arranged to cause the torch to deliver its 105 cordance with the course pursued by the feed 1 jets in substantially constant relation adjacent the vertical region of driving upon the flange.

5. A machine for trimming upstanding of gases, having a center them, the secondary part bearing a torch and torch-adjusters and freely hinged to the primary part to bear by gravity against the flange.

- 6. A machine for trimming upstanding flanges by means of gases, having a center flange in oppositionture, and

support, a depending self-propelled structure and means for supporting the same from the center with freedom to swing about the center and to move in and out with reference thereto as the depending. structure travels along the flange, said dependingstructure comprising a primary part including avertical drive shaftwith a feed wheel upon its lower end, and a secondary partsuspended flexibly fromvthe primary part and carrying.

a torch and torch adjusters and a pair of pressure wheels adapted to bear upon the to the. feed .wheel.

7. A machine for trimming upstanding flanges by means of gases, having acenter support, a depending self-pro elled structure and means for supporting tli the center with freedom to swing about the center and to move in and out with reference thereto as the dependingstructure travels along the flange, said depending structure comprising a primary part including a vertical drive shaft with a feed wheel upon its lower end, and a secondary part comprismg an arm hinged to the primary part upon a horizontal axis and bearing and adjusting means and pressure rollers between the same and the primary part to bear against the flange in opposition to the a bear upon feed wheel.

8. A machine for trimming upstanding flanges by means of gases, havin a center support, a depending self-propel d struc means from the center with freedom to swing about the center and to move in and out with reference thereto as' the depending structure travels along the flange, structure comprising a primary part including a vertical drive shaft with a feed wheel upon its lower end to operate along one side of the flange, an arm connected by horizontal and vertical pivots to the primary part and'bearing pressure wheels in downwardly projecting relation to bear upon the flange and a torch mounted upon one of said e same from torch holding for supporting the same a said depending in opposition to said feed wheel, and torch j adjusters and a torch carried by said arm in rear of the ressure wheels and urging the same by their weight against the flange.

9. A machine for trimming upstandlng flanges by means of gases, having a center support, a depending self-propelled structure and means for supporting the same from the center with freedom to swing about the center and to move in and out with reference thereto as the depending structure travels along the flange, said depending structure comprising. two flexibly connected opposed parts embracing the flange between them and including a driven feed wheel,

opposed parts in position to deliver its jets against the flange near the central vertical plane of the feed wheel. a

10. Apparatus of the character described comprismg a center support, an .arm mounted to swing about said support, and a depending ture carried by said arm in such manner as to be capable of free movement toward and from the center, said depending structure comprising outer and inner parts, the outer part including a vertical feed shaft bearing a driving wheel to travel upon one side of a flange or guide, and the inner part being flexibly jointed to the outer part and having a pair of pressure rollers to bear upon 7 the feed wheel, and justing means carried ed-part. j

11. Apparatus of the character described comprismg a center support,an arm mounted to swing about said support, and a depending torch-bearing and guiding structure carried by said arm' in such manner as to be capable of free movement toward and from the center, said depending structure comrising outer and inner parts, including torch-holding and adby said flexibly jointflange or guide, and the inner'part torch-bearing and guiding struc the outer part c a vertical feed'shaft bearing a 7 driving wheel to travel upon one slide ofa being hinged on a horizontal axis and carrying a. I

pain of gravityeu rged pressure rollers to the other-side of the flange in .op sition to the feed wheel, and torchho ding vand adjusting "means carried by said hinged inner part.

12. Torch-cutting apparatus, comprising a" center support, a radial arm, mounted swing about said support, a carriage freely movable lengthwise on said arm, :rbracket projecting downward from said carriage, a

vertical shaft journaled .in said bracket, :1.

feed wheelconnected .withthe lower end of said'shaft, a motorori the carriage, a shaft driven by said motor extending downward on the carriage at one side of the arm, and a short transverse shaft geared to, the proximate ends 'of'said vertical shafts; I w

5 f WORTHY G. BUCKNAM, 5

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