US3704012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for positioning a cutting torch in a flame cutting machine
Assignee: Messer Griesheim GmbH
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Filing: 1970-09-14
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Granted: 1972-11-28
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Expires: 1990-09-14
Abstract
Abstract The positioning device comprises an angularly displaceable cutting torch means, stop bars abutting from opposite sides against the workpiece to be separated, and limiting the movement of the torch means. The torch means actuates in its limit positions a torch drive and flame controlling device.
Inventors
- 👤 Alfred Pfeuffer
- 👤 Gustav Kalkhof
- 👤 Helmut Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; B23K7/003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
In a flame cutting machine for severing continuously moving workpieces, particularly continuous castings, billets, slabs, bars and ingots, a controlling device for controlling the position of a pendulum-type movable cutting torch means at the start and after the completion of the cut comprising, in combination, opposed stop members, one stop member abutting the surface of the workpiece at which the flame cut is started and the other stop member abutting the opposite surface at which the cut ends, said stop members projecting into the path of movement of a lower portion of said torch means and limiting said path in accordance with the desired cutting range, and further comprising additional controlling means operatively coupled to an upper portion of said torch means to control the cutting operation in response to the position of said torch means.
Claim 2
Dependent Claim
136 words
In a flame cutting machine for severing continuously moving workpieces, particularly continuous castings, billets, slabs, bars and ingots, a controlling device for controlling the position of a pendulum-type movable cutting torch means at the start and after the completion of the cut comprising, in combination, opposed stop members, one stop member abutting the surface of the workpiece at which the flame cut is started and the other stop member abutting the opposite surface at which the cut ends, said stop members projecting into the path of movement of a lower portion of said torch means and limiting said path in accordance with the desired cutting range, and further comprising additional controlling means operatively coupled to an upper portion of said torch means to control the cutting operation in response to the position of said torch means.
Claim 3
Dependent Claim
45 words
In a flame cutting machine according to claim 1, said stop members including clamping means with clamp jaws for clamping the work piece, and stop bars, projecting into the path of movement of said torch means, said clamp jaws being connected to said stop bars.
Claim 4
Dependent Claim
24 words
In a flame cutting machine according to claim 2, said torch means supporting stop disks for abutting the stop bars on said clamp jaws.
Claim 5
Dependent Claim
20 words
In a flame cutting machine according to claim 3, said stop disks being in the form of adjustable threaded pins.
Claim 6
Dependent Claim
31 words
In a flame cutting machine according to claim 1, said movable cutting torch means comprising a torch clamping member and a rocking torch drive operatively connected to said torch clamping member.
Claim 7
Dependent Claim
24 words
In a flame cutting machine according to claim 5, said torch drive being provided with a controlling clutch having inner and outer slipping members.
Claim 8
Dependent Claim
46 words
In a flame cutting machine according to claim 6, said controlling clutch further comprising switching means to switch off the torch drive when the stop disk of the torch clamping member strikes against the stop bar of the clamp jaw and the clutch member starts slipping.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |