US4478393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for thermal longitudinal parting of rectangular metal plate bars, in particular of cut-to-length continuous-casting plate slabs
Assignee: Mannesmann Demag AG
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Filing: 1983-10-07
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Granted: 1984-10-23
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Expires: 2003-10-07
Abstract
Abstract The invention is directed to an apparatus for thermally cutting rectangular metal slabs along a longitudinal axis of the slab. A metal slab is conveyed along a predetermined path of travel while it is being cut by, for example, an oxygen-flame cutting machine. The means for conveying the metal slab comprises a plurality of rollers transversely disposed relative to the path of travel and the cutting machine is arranged above the conveying means and between two of the rollers. The slag created by the cutting is collected and conveyed by a slag duct disposed below the conveying means. Pursuant to the invention, the slag duct extends from between the two rollers adjacent the cutting machine along an axis transverse to the path of travel. In accordance with another feature of the invention, the side edges of the metal slab are sensed and the cutting machine is transversely aligned relative to the path of travel in accordance with the sensed locations of the side edges.
Inventors
- 👤 Gerhard Komma
- 👤 Dietmar Lohse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:00
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/126; B23; B23K; B23K7/00; B23K7/002
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
157 words
An apparatus for cutting a rectangular metal slab, which comprises (a) a conveying means for supporting and conveying said metal slab, (b) a thermal cutting machine mounted above said conveying means, and arranged to cut the metal slab being conveyed by said conveying means, (c) carriage means associated with said cutting machine, (d) said carriage means being arranged and configured to move said cutting machine in a direction transverse to the direction said metal slab is being conveyed, (e) sensing means arranged to sense the locations of the outer edges of said metal slab, (f) means to operate said carriage means in accordance with a predetermined relation to said sensed location of the outer edges, and (g) a second thermal cutting machine mounted above said conveying means in a longitudinally spaced relation to said first cutting machine, (h) each of said cutting machines being operable to partially cut said slab a predetermined length in the longitudinal direction.
Claim 2
Independent Claim
157 words
An apparatus for cutting a rectangular metal slab, which comprises (a) a conveying means for supporting and conveying said metal slab, (b) a thermal cutting machine mounted above said conveying means, and arranged to cut the metal slab being conveyed by said conveying means, (c) carriage means associated with said cutting machine, (d) said carriage means being arranged and configured to move said cutting machine in a direction transverse to the direction said metal slab is being conveyed, (e) sensing means arranged to sense the locations of the outer edges of said metal slab, (f) means to operate said carriage means in accordance with a predetermined relation to said sensed location of the outer edges, and (g) a second thermal cutting machine mounted above said conveying means in a longitudinally spaced relation to said first cutting machine, (h) each of said cutting machines being operable to partially cut said slab a predetermined length in the longitudinal direction.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1, further characterized by (a) said conveying means being operable to convey several metal slabs in a side-by-side relation.
Claim 4
Independent Claim
125 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a predetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, and (d) slag conveyer means being arranged in a directly confronting relation to said predetermined path at a position located immediately below said rollers and said thermal cutting machine, (e) said slag conveyor means including a slag duct extending from between two of said rollers crosswise to said predetermined path followed by said metal slab whereby said duct extends transversely away from the longitudinal axis of the predetermined path.
Claim 5
Independent Claim
125 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a predetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, and (d) slag conveyer means being arranged in a directly confronting relation to said predetermined path at a position located immediately below said rollers and said thermal cutting machine, (e) said slag conveyor means including a slag duct extending from between two of said rollers crosswise to said predetermined path followed by said metal slab whereby said duct extends transversely away from the longitudinal axis of the predetermined path.
Claim 6
Dependent Claim
18 words
The apparatus of claim 3, further characterized by (a) said thermal cutting machine comprising an oxygen-flame cutting machine.
Claim 7
Dependent Claim
18 words
The apparatus of claim 3, further characterized by (a) said thermal cutting machine comprising a plasma-flame cutting machine.
Claim 8
Independent Claim
115 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a predetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, (d) said thermal cutting maching being selectively transversely movable relative to said predetermined path, (e) slag conveyer means being arranged directly below said rollers and thermal cutting machine and including a transversely disposed slag duct extending from between two of said rollers, and (f) positive drive means associated with said cutting machine to engage and drive said metal slab.
Claim 9
Independent Claim
115 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a predetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, (d) said thermal cutting maching being selectively transversely movable relative to said predetermined path, (e) slag conveyer means being arranged directly below said rollers and thermal cutting machine and including a transversely disposed slag duct extending from between two of said rollers, and (f) positive drive means associated with said cutting machine to engage and drive said metal slab.
Claim 10
Dependent Claim
44 words
The apparatus of claim 6, futher characterized by (a) said positive drive means comprising a pair of opposed driven rolls, (b) one of said rolls being disposed above said metal slab, and (c) the other of said rolls being disposed below said metal slab.
Claim 11
Dependent Claim
63 words
The apparatus of claim 6, further characterized by (a) a second thermal cutting machine mounted above said rollers, and being arranged between two other transversely disposed rollers, (b) the distance between said thermal cutting machines being at least equal to the length of said metal slab, (c) each of said cutting machines being operable to partially cut said slab a predetermined cutting length.
Claim 12
Dependent Claim
87 words
The apparatus of claim 8, further characterized by (a) second positive drive means associated with said second thermal cutting machine, (b) said first positive drive means being disposed upstream of said first thermal cutting machine, (c) said second positive drive means being disposed downstream of said second thermal cutting machine, and (d) each of said positive drive means being arranged at a predetermined distance to the complementary cutting machine, (e) said predetermined distance being less than the cutting length of each cutting machine through the metal slab.
Claim 13
Independent Claim
111 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a prdetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, (d) said thermal cutting machine being selectively tranversely movable relative to said predetermined path, and (e) slag conveyer means being arranged directly below said rollers and thermal cutting machine and including a transversely disposed slag duct extending from between two of said rollers, (f) said slag conveyor means including a transversely disposed gas exhaust pipe.
Claim 14
Independent Claim
111 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a prdetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, (d) said thermal cutting machine being selectively tranversely movable relative to said predetermined path, and (e) slag conveyer means being arranged directly below said rollers and thermal cutting machine and including a transversely disposed slag duct extending from between two of said rollers, (f) said slag conveyor means including a transversely disposed gas exhaust pipe.
Claim 15
Independent Claim
107 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a prdetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, (d) said thermal cutting machine being selectively transversely movable relative to said predetermined path, and (e) slag conveyer means being arranged directly below said rollers and thermal cutting machine and including a transversely disposed slag duct extending from between two of said rollers, (f) said slag duct comprising a vibrating chute.
Claim 16
Independent Claim
107 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a prdetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, (d) said thermal cutting machine being selectively transversely movable relative to said predetermined path, and (e) slag conveyer means being arranged directly below said rollers and thermal cutting machine and including a transversely disposed slag duct extending from between two of said rollers, (f) said slag duct comprising a vibrating chute.
Claim 17
Independent Claim
164 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a predetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a first thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, and (d) a second thermal cutting machine mounted above said rollers, and being arranged between two other transversely disposed rollers, (e) each of said cutting machines being operable to partially cut said slab a predetermined cutting length in the longitudinal direction, (f) said first cutting machine being operable to cut said slab a first predetermined partial cutting length in the longitudinal direction, (g) said second cutting machine being operable to cut said slab a second predetermined cutting length equal to the length of the slab minus the first predetermined partial cutting length whereby said first and second cutting machines completely cut said slab in the longitudinal direction.
Claim 18
Independent Claim
164 words
An apparatus for thermally cutting a rectangular metal slab, which comprises (a) a plurality of rollers for supporting and conveying said slab along a predetermined path, (b) said rollers being transversely disposed relative to said predetermined path, (c) a first thermal cutting machine mounted above said rollers and being arranged between two of said transversely disposed rollers, and (d) a second thermal cutting machine mounted above said rollers, and being arranged between two other transversely disposed rollers, (e) each of said cutting machines being operable to partially cut said slab a predetermined cutting length in the longitudinal direction, (f) said first cutting machine being operable to cut said slab a first predetermined partial cutting length in the longitudinal direction, (g) said second cutting machine being operable to cut said slab a second predetermined cutting length equal to the length of the slab minus the first predetermined partial cutting length whereby said first and second cutting machines completely cut said slab in the longitudinal direction.
Claim 19
Dependent Claim
30 words
The apparatus according to claim 12, further characterized by the distance between said first and second thermal cutting machines being at least equal to the length of said metal slab.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |