US3745713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting-off machines
Assignee: Nobel Bozel SA
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Filing: 1971-06-23
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Granted: 1973-07-17
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Expires: 1991-06-23
Abstract
Abstract The invention deals with an improved machine for cutting off metal sheets. The improvement consists in the fact that a carriage, movable along a horizontal guiding rail and bearing an arm at the extremity of which is mounted a cutting-off disc rotated at high speed, is given simultaneously a continuous to-and-fro movement in the direction of cutting and an intermittent movement of translation in the direction of cutting brought into action by a depth guide for the cutting-off wheel, by means of a suitable transmission system. This improvement renders automatic the opration of the cuttingoff machine.
Inventors
- 👤 A Fabre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:49
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/06; B24B27/0608
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
An improved cutting-off machine for metal sheets, comprising a frame supporting a work-table and a horizontal guiding rail located above said work-table and the direction of which is the direction of cutting; a carriage adapted to move along said guiding rail, first means operably connected to said carriage and adapted to give said carriage a reciprocating movement in the direction of cutting; an arm rigidly fixed to said carriage and being capable of pivoting freely about a horizontal axis, perpendicular to said guiding rail; a high speed rotary cuttingoff disc having a shaft mounted on the extremity of said arm, said first means further being adapted to act alone or in combination with second means operably connected to said carriage to provide an intermittent movement of translation in the direction of cutting, brought into action by a depth guide for the cutting-off wheel, limiting the downward displacement of this latter.
Claim 2
Dependent Claim
150 words
An improved cutting-off machine for metal sheets, comprising a frame supporting a work-table and a horizontal guiding rail located above said work-table and the direction of which is the direction of cutting; a carriage adapted to move along said guiding rail, first means operably connected to said carriage and adapted to give said carriage a reciprocating movement in the direction of cutting; an arm rigidly fixed to said carriage and being capable of pivoting freely about a horizontal axis, perpendicular to said guiding rail; a high speed rotary cuttingoff disc having a shaft mounted on the extremity of said arm, said first means further being adapted to act alone or in combination with second means operably connected to said carriage to provide an intermittent movement of translation in the direction of cutting, brought into action by a depth guide for the cutting-off wheel, limiting the downward displacement of this latter.
Claim 3
Dependent Claim
92 words
A machine as claimed in claim 1 further including a transmission system comprising an endless chain operably connected to and transmitting its movements to the carriage, said chain being coaxial in driving relationship with a toothed wheel coaxial with an output half-shaft of which can be given intermittently a movement of rotation by a motor-driven speed varying gear, said gear arrangement being continuously subjected to oscillations by said first means which includes a plate-crank assembly actuated by a motor-driven speed-reduction gear, with input and output half-shafts being located on the same axis.
Claim 4
Dependent Claim
126 words
A machine as claimed in claim 2, in which said gear arrangement is a speed reducer and comprises four toothed wheels, the first of which has the input shaft as its axis and is in engagement with the second, having a diameter different from that of the first, the axis of which is parallel to that of the first and which is mounted on the same shaft as the third toothed wheel, said third toothed wheel having a diameter different from that of the second and being in engagment with a fourth toothed wheel having a diameter different from that of the third and which is carried by the output half-shaft of the casing which is in the extension of the input half-shaft of said casing.
Claim 5
Dependent Claim
100 words
A machine as claimed in claim 2, in which said gear arrangement is a reversing gear arrangement and comprises four toothed wheels arranged as in a differential gear set, that is to say the input and output half-shafts have the same direction and constitute the axes of two toothed wheels of the same diameter which are in engagement with the other two toothed wheels having a diameter different from or equal to that of the preceding and having as their axes the half-shafts of the same direction perpendicular to the direction of the axes of the first two toothed wheels.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |