US3929324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame cutting machine
Assignee: Gesellschaft für Gasetechnik Lotz KG
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Filing: 1973-11-09
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Granted: 1975-12-30
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Expires: 1993-11-09
Abstract
Abstract A flame cutting machine for cutting cast strands into lengths as the strand is moving. A carriage including the flame cutting torch is provided with means for engaging the upper surface of the strand and to be driven solely thereby on rollers along with the strand until the cutting operation is completed.
Inventors
- 👤 Horst K Lotz
- 👤 Bernhard Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:35
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/126; B23; B23K; B23K7/00; B23K7/002; B23K7/003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A flame cutting machine for cutting strands produced in continuous casting plants, said machine comprising a carriage, at least one cutting torch mounted to said carriage, means mounting said carriage for movement above said strand for a distance along the path of movement of said strand, means for selectively transferring substantially the entire weight of said carriage to said strand to connect said carriage to said strand to produce synchronous movement of said strand and said carriage, said last mentioned means being engageable only with the upper surface of said strand and comprising at least one bearing member and means selectively moving said bearing member into engagement with the upper surface of said strand to frictionally engage said strand to be driven by said strand and thereby produce synchronous movement of said carriage with said strand.
Claim 2
Dependent Claim
136 words
A flame cutting machine for cutting strands produced in continuous casting plants, said machine comprising a carriage, at least one cutting torch mounted to said carriage, means mounting said carriage for movement above said strand for a distance along the path of movement of said strand, means for selectively transferring substantially the entire weight of said carriage to said strand to connect said carriage to said strand to produce synchronous movement of said strand and said carriage, said last mentioned means being engageable only with the upper surface of said strand and comprising at least one bearing member and means selectively moving said bearing member into engagement with the upper surface of said strand to frictionally engage said strand to be driven by said strand and thereby produce synchronous movement of said carriage with said strand.
Claim 3
Dependent Claim
48 words
The flame cutting machine as defined in claim 1 and in which said carriage is vertically movable with respect to said strand and said bearing member being fixed to said carriage to be movable into frictional driven engagement with said strand upon vertical movement of said carriage member.
Claim 4
Dependent Claim
45 words
The flame cutting machine as defined in claim 1 and in which said mounting means includes rails and rollers carried by said carriage engaging said rails, and including means carried by said carriage and engaging the sides of said rails to clamp said carriage therebetween.
Claim 5
Dependent Claim
57 words
The flame cutting machine as defined in claim 1 and in which said bearing member moving means comprises a cross fixed to said carriage member, a torch saddle runway and means mounting said torch saddle runway for vertical movement with respect to said carriage, said torch and said bearing member being mounted to said torch saddle runway.
Claim 6
Dependent Claim
47 words
The flame cutting machine as defined in claim 1 and in which said mounting means includes rails and rollers carried by said carriage and engaging said rails, said moving means including vertically movable support members supporting said rollers and hydraulic means for selectively moving said support members.
Claim 7
Dependent Claim
40 words
The flame cutting machine as defined in claim 1 ans in which said mounting means includes rails and rollers carried by said carriage and engaging said rails, said moving means including means selectively operable to raise and lower said rails.
Claim 8
Dependent Claim
58 words
The flame cutting machine as defined in claim 1 and in which said mounting means includes rails and rollers carried by said carriage member and engaging said rails and including a raised section of said rail to raise said carriage out of engagement with said strand at the end of synchronous movement of said carriage and said strand.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |