US3792846A - Self-cleaning water cooled burning table - Google Patents
Self-cleaning water cooled burning table Download PDFInfo
- Publication number
- US3792846A US3792846A US00272263A US3792846DA US3792846A US 3792846 A US3792846 A US 3792846A US 00272263 A US00272263 A US 00272263A US 3792846D A US3792846D A US 3792846DA US 3792846 A US3792846 A US 3792846A
- Authority
- US
- United States
- Prior art keywords
- pan
- grating
- water
- level
- burning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 238000004140 cleaning Methods 0.000 title description 7
- 239000007921 spray Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 42
- 238000005520 cutting process Methods 0.000 claims description 14
- 235000000396 iron Nutrition 0.000 claims description 13
- 230000000284 resting effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000008400 supply water Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/002—Machines, apparatus, or equipment for cutting plane workpieces, e.g. plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
Definitions
- ABSTRACT A burning table having a pan with a sloping bottom terminating in a clean-out trough.
- the water level in the table is controlled by over-flow pipes, one of which is valved to permit lowering the water level below the grating which catches the torch cut parts and the other of which controls the maximum water level necessary for burning but which is manually removable to permit complete draining of the pan and clean-out trough.
- a spray header extends along the pan opposite the clean-out trough and sprays water at high pressure through nozzles to wash debris resulting from the burning operation into the clean-out trough upon closing the valved over-flow pipe for filling the pan to the maxium water level necessary for burning. Bars for supporting the plate to be cut are mounted to minimize warpage and damage from the flame and to be readily replaceable.
- Burning tables i.e., tables for support ofa metal plate for torch or flame cutting, have customarily utilized water to cool certain elements of the table to prevent destruction of them by the flame of the torch.
- prior art burning tables either exposed excessive portions of the table to the torch flame or required an individual to work in a thin layer of water in removing the parts severed from the metal plate burned or cut out by the torch flame.
- the life of the table was restricted or extensive rebuilding was frequently necessary.
- certain potential safety hazards were created because of the necessity for the workmen to walk upon metal covered with a thin layer of water.
- Burning tables of the piror art also necessitated frequent maintenance which was cumbersome and time consuming.
- FIG. 1 is a schematic pictorial of a pair of burning tables constructed in accordance with the present inventron;
- FIG. 2 is a top plan view of one of'the burning tables illustrated in FIG. 1; v
- FIG. 3 is a cross sectional view taken on line 33 of FIG. 2;
- FIG. 4 is a cross sectional view taken on line 44 of FIG. 2;
- FIG, 5 is a cross sectional view taken on line 55 of FIG. 2.
- FIG. 1 there is shown a pair of burning tables, indicated generally at and 12, which are connected with a sump or pit 14.
- Water is supplied to the pit 14 through conduit 16 and the water within the pit 14 is maintained at-a minimum level by a float valve 18'.
- This level maintained by the float valve is sufficiently low to permit the tables 10 and 12 to be completely drained without overflowing the pit.
- the purpose of the float valve is to provide makeup water to replenish that which is evaporated from the tables during normal burning operations.
- a pump 20 draws water from the pit 14 though a conduit 22.
- a foot valve 24 is connected with the-other end of the conduit 22 and provides a screen or filter to prevent debris from entering the pump and a one-way check valve permitting flow of water to the pump but precluding reverse flow from the pump into the pit.
- a discharge line 26 connects the pump 20 with the supply lines 28 and 30 which connect respectively with the spray headers 32 and 34 in the tables 10 and 12 respectively.
- the discharge conduit 26 from the pump 20 may be utilized, if desired, to supply water to those types of multiple tip burning machines which have cooling water-cones surrounding the cutting area. In order to accomplish this conduit 26 connects with a conduit 36 leading to the burning machine torches. Because the pump 20 is a high pressure pump, it is desirable to interpose a flow.
- control valve 38 in the conduit 36 Since this type of burning table may be used with either the flame type burning machine or anelectrical discharge machine, the latter of which could not tolerate metal particles and still maintain accurate cutting control, a filter, to remove minute particles of metal which may be present in the pit and pass through the screen in the foot valve 24, is positioned in the conduit 36 and is shown at 40.
- a valve 42 is interposed in the conduit 26 and a conduit 44 connects with the conduit 26 upstream of the valve 42 and is itself provided with a valve 46.
- a valve 46 By closing the valve 42 and opening the valve 46 the water in the pit 14 may be pumped to a desired discharge point through the conduit 44. Under normal operations the circuit would be operated with the valve 46 closed and' the valve 42 opened.
- valves 48 and 50 in the conduits 28 and 30 respectively to selectively stop the flow of water to one of the tables 10 and 12 while the pump .is supplying water to the other table. It is preferable that the valves 40 and 50 be solenoid operated to permit remote control of these valves from the burning machine console.
- a drain line 52 leads from the table to the pit 14.
- the drain line 52 branches into drain lines 53 and 55 which connect respectively with over-flow and water level control pipes 54 and 56 respectively.
- a valve 58 is provided in the branch 55 and may be either manual, or as shown in the drawing, may be a solenoid operated valve to permit control of the water level from the burning machine console.
- the overflow pipe 54 threadedly engages with a third over-flow pipe 60 so that manual removalof the first over-flow pipe 54 will permit complete drainage of the table 10.
- the table 10 is provided with a pan 62 capable of retaining water, and may, for example, be made of /4 inch thick steel having welded water tight seams.
- the pan 62 is preferably rectangular in plan view, as shown in FlG. 2, and has a shoulder 63 formed around its periphery, which shoulder is supported by l-beams 64 resting upon the ground or other suitable support.
- the bottom 66 of the pan slopes downward from the spray header 32 and terminates in a clean-out trough 68 formed along that side of the pan opposite the spray header 32.
- the spray header is provided with a plurality of nozzles 70 spaced along the length thereof and directed toward the cleanout trough 68.
- Water under pressure is provided by the pump 20, which preferably is capable of providing an adequate supply of water for all the nozzles at approximately 100 P.S.l., will wash any debris accumulating on the bottom 66 during the burning operation into the clean-out trough 68.
- a plurality of metal bars 72 which preferably are of rectangular cross section having a minor dimension and a major dimension, extend across the table 10 and rest upon the shoulder 63 formed in the pan 66.
- Each of the metal bars 72 are held in position by a pair of angle irons 74 and 76 secured to the shoulder 63 of the pan;
- the angle irons 74 and 76 are positioned with two of the legs extending substantially vertical and spaced apart a distance sufficient to permit the slidable entry of the minor dimension of the metal bar 72, while being spaced close enough together to preclude any substantial warping of the metal bar 72 due to the heat of the torch flame.
- Space bars 65 extend transverse to the angle irons and are secured thereto.
- the spacer bars maintain the angle irons in proper position, and serve as additional support for the metal bars 72.
- the other legs of the two angle irons 74 and 76 extend substantially horizontal and provide a shelf or shoulder upon which the grating 78 may rest.
- the grating 78 is preferably provided in a plurality of sections which may be conveniently removed and replaced manually by one individual.
- the over-flow pipes 54, 56 and 60 and the valve 58 function as means for controlling the water level within the pan 62 in the following manner.
- the over-flow pipe 60 which preferably is a pipe coupling having internal threads, is welded to the bottom of the trough 68, which is the lowest elevation in the pan .62. Whenever the pipe 54 is removed from its threaded engagement with the pipe 60, substantially all of the water in the table-will be drained to the pit 14'through branch conduit 52. When the pipe 54 is threadedly engaged in the pipe 60, and assuming valve 58 is closed, the maximum water level within the table 10 will be determined by the open end of the pipe .54. As will be apparent from F Ki.
- the open end of pipe 54 extends just above the top of the angle irons 74 and 76 so that only the upper portion of the metal bar 72 protrudes above the maximum water level. In this way the angle irons 74 and 76 and the grating 78 will be protected from the torch flame during the burningoperation, and only the replaceable metal bar 72 will be subjected to the cutting action of the burning machine.
- the over-flow pipe 56 has an opened end positioned just beneath the grating 78 and, whenvalve 58 is opened, the water level in the table will be lowered to that level by draining the water through branch conduit 55 and conduit 52 to the pit 14.
- the pan 62 will have its 'water level at the maximum determined by the opening in the pipe 54.
- valve 58 will be opened permitting the water level to be lowered to just below the grating 78;
- the skeleton, or what remains of the original metal plate or plates from which the parts were cut, will be resting upon the metal bar 72 and can be removed by an electromagnetic crane or comparable de vice.
- Larger parts which may also be resting upon metal bar 72 can be removed in a similar manner and smaller parts which may have dropped between the bars will be caught by the grating 78 and will be resting above the level of the water remaining in the table.
- These can either be collected by hand or with mechanical assistance, in either case-the grating being above the water permits workmen to walk about on the top of the table to retrieve the parts without any interference from the water present in the table.
- the pipe 54 is manually unscrewed from the pipe 60,-thereby causing substantially all of the water within that table to be drained into the pit 14.
- the grating sections which are directly above the clean-out trough 68 are removed and the accumulated debris can be manually removed from the cleanout trough.
- a burning table for supporting a metal plate for cutting thereof comprising:
- a pan capable of retaining water and having a bottom which slopes toward one end thereof, thereby defining a high side and a low side;
- a grating supported within said pan and being substantially level;
- a spray header positioned below said grating and extending along said high side;
- said header being capable of directing water under pressure along the bottom of the pantoward said trough to wash debris into said trough;
- water level control means for selectively maintaining water within the pan at a first level above the grating during the flame cutting operation and at a second level below the grating to permit removal of parts which drop onto the grating after being cut from said plate.
- a burning table according to claim 1, wherein said water level control means is capable of draining substantially all of said water from said pan, including said trough, to permit removal of accumulated debris from said trough.
- a burning table according to claim 1, wherein said means for supporting said metal plate comprises a plurality of metal bars extending across said pan and above said grating at an elevation higher than said first level of the water;
- said metal bars have a rectangular cross-section with a major dimension and a minor dimension
- each of said positioning means comprises a pair of metal angle irons positioned back to back and spaced apart a distance to slidably receive the minor dimension of each of said bars and position the major dimension thereof in a vertical plane;
- the metal bars extending above the water and the angle irons being entirely below the water at said first level thereof.
- a burning table according to claim 5, wherein said grating comprises a plurality of sections with each section resting upon the angle irons.
- said water level control means comprises a first over-flow pipe in said pan with an opening above the level of the grating;
- a valve associated with said second pipe to selectively communicate and isolate said second pipe with said drain line.
- a third over-flow pipe connected to and in sealing engagement with the bottom of said trough and having a threaded opening at a level to permit draining substantially all of the water;
- said first pipe is threadedlyengageable with said third pipe for selective removal and connection of said first and third pipes.
- a burning table to facilitate the cutting of metal plates comprising:
- a pan capable of retaining water and having a sloping bottom defining a high side and a low side;
- a spray header positioned below said grating and extending along said highside;
- drain line means connecting each of said first and second pipes with the sump
- a high-pressure pump connected to draw water from the sump and discharge it through the spray header.
- a burning table according to claim 9, wherein said means for supporting comprises:
- each of said bars having a rectangular cross-section defining a major dimension and a minor dimension
- said grating being in sections capable of resting upon facing members of adjacent pairs.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27226372A | 1972-07-17 | 1972-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3792846A true US3792846A (en) | 1974-02-19 |
Family
ID=23039091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00272263A Expired - Lifetime US3792846A (en) | 1972-07-17 | 1972-07-17 | Self-cleaning water cooled burning table |
Country Status (1)
Country | Link |
---|---|
US (1) | US3792846A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969132A (en) * | 1975-07-22 | 1976-07-13 | Anderson Engineers, Inc. | Self-cleaning water table system |
EP0046929A2 (en) * | 1980-08-30 | 1982-03-10 | Trumpf GmbH & Co | Treating machine with a thermic cutting-ray device |
US4524955A (en) * | 1984-06-08 | 1985-06-25 | Deere & Company | Burning table |
US4887797A (en) * | 1988-12-05 | 1989-12-19 | Messer Griesheim Industries, Inc. | Slag flushing and water level control system for a metal cutting apparatus |
US4930756A (en) * | 1989-08-17 | 1990-06-05 | Caterpillar Inc. | Burn table |
EP0575877A1 (en) * | 1992-06-26 | 1993-12-29 | Messer Griesheim Gmbh | Installation for thermal working of workpieces in particular antogen or plasma cutting |
US6039915A (en) * | 1998-04-23 | 2000-03-21 | Missouri Valley Steel Company | Burn table |
US6387320B1 (en) | 2001-01-30 | 2002-05-14 | Eric Poulin | Water table with a system for modifying its interior volume and cleaning its water |
SG126735A1 (en) * | 2003-10-14 | 2006-11-29 | Singapore Technologies Marine | A welding table |
US7560064B1 (en) | 2005-03-24 | 2009-07-14 | Owen Industries, Inc. | Downdraft exhaust cutting table |
US20090233536A1 (en) * | 2008-03-14 | 2009-09-17 | Crees Craig A | Downdraft exhaust cutting and shuttle table mechanism |
US20100133730A1 (en) * | 2004-06-24 | 2010-06-03 | Owen Industries, Inc. | Slag Removal System for a Burn Table |
CN104289837A (en) * | 2014-10-21 | 2015-01-21 | 黑龙江同禹傲思铝业股份有限公司 | Long weld cooler |
CN105458537A (en) * | 2015-12-28 | 2016-04-06 | 安吉长虹制链有限公司 | Numerically-controlled flame plasma cutting machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3330547A (en) * | 1964-07-31 | 1967-07-11 | Robbins & Myers | Tracer controlled cutting apparatus |
US3486744A (en) * | 1968-01-02 | 1969-12-30 | Caterpillar Tractor Co | Flame cutting installation with fluid flow waste removal means |
US3526395A (en) * | 1967-06-21 | 1970-09-01 | Edgcomb Steel Co | Apparatus for removing metallic slag from torch cutting operations |
-
1972
- 1972-07-17 US US00272263A patent/US3792846A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3330547A (en) * | 1964-07-31 | 1967-07-11 | Robbins & Myers | Tracer controlled cutting apparatus |
US3526395A (en) * | 1967-06-21 | 1970-09-01 | Edgcomb Steel Co | Apparatus for removing metallic slag from torch cutting operations |
US3486744A (en) * | 1968-01-02 | 1969-12-30 | Caterpillar Tractor Co | Flame cutting installation with fluid flow waste removal means |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969132A (en) * | 1975-07-22 | 1976-07-13 | Anderson Engineers, Inc. | Self-cleaning water table system |
EP0046929A2 (en) * | 1980-08-30 | 1982-03-10 | Trumpf GmbH & Co | Treating machine with a thermic cutting-ray device |
EP0046929A3 (en) * | 1980-08-30 | 1982-03-24 | Trumpf Gmbh & Co | Treating machine with a thermic cutting-ray device |
US4524955A (en) * | 1984-06-08 | 1985-06-25 | Deere & Company | Burning table |
EP0171883A2 (en) * | 1984-06-08 | 1986-02-19 | Deere & Company | Burning table |
EP0171883A3 (en) * | 1984-06-08 | 1986-03-19 | Deere & Company | Burning table |
US4887797A (en) * | 1988-12-05 | 1989-12-19 | Messer Griesheim Industries, Inc. | Slag flushing and water level control system for a metal cutting apparatus |
US4930756A (en) * | 1989-08-17 | 1990-06-05 | Caterpillar Inc. | Burn table |
EP0575877A1 (en) * | 1992-06-26 | 1993-12-29 | Messer Griesheim Gmbh | Installation for thermal working of workpieces in particular antogen or plasma cutting |
US6039915A (en) * | 1998-04-23 | 2000-03-21 | Missouri Valley Steel Company | Burn table |
US6387320B1 (en) | 2001-01-30 | 2002-05-14 | Eric Poulin | Water table with a system for modifying its interior volume and cleaning its water |
SG126735A1 (en) * | 2003-10-14 | 2006-11-29 | Singapore Technologies Marine | A welding table |
US20100133730A1 (en) * | 2004-06-24 | 2010-06-03 | Owen Industries, Inc. | Slag Removal System for a Burn Table |
US7998398B2 (en) | 2004-06-24 | 2011-08-16 | Owen Industries, Inc. | Slag removal system for a burn table |
US7560064B1 (en) | 2005-03-24 | 2009-07-14 | Owen Industries, Inc. | Downdraft exhaust cutting table |
US20090233536A1 (en) * | 2008-03-14 | 2009-09-17 | Crees Craig A | Downdraft exhaust cutting and shuttle table mechanism |
US7985369B2 (en) | 2008-03-14 | 2011-07-26 | Owen Industries, Inc. | Downdraft exhaust cutting and shuttle table mechanism |
CN104289837A (en) * | 2014-10-21 | 2015-01-21 | 黑龙江同禹傲思铝业股份有限公司 | Long weld cooler |
CN105458537A (en) * | 2015-12-28 | 2016-04-06 | 安吉长虹制链有限公司 | Numerically-controlled flame plasma cutting machine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DRESSER INDUSTRIES, INC., A CORP. OF DEL., STATELE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INTERNATIONAL HARVESTER COMPANY;REEL/FRAME:004130/0646 Effective date: 19821101 Owner name: DRESSER INDUSTRIES, INC., A CORP. OF DEL. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTERNATIONAL HARVESTER COMPANY;REEL/FRAME:004130/0646 Effective date: 19821101 |
|
AS | Assignment |
Owner name: KOMATSU DRESSER COMPANY, E. SUNNYSIDE 7TH ST., LIB Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DRESSER FINANCE CORPORATION, A CORP. OF DE.;REEL/FRAME:004994/0077 Effective date: 19880901 Owner name: DRESSER FINANCE CORPORATION, DALLAS, TX., A DE COR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DRESSER INDUSTRIES, INC.;REEL/FRAME:004994/0061 Effective date: 19880831 |