US3659531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing machine for rods and tubing
Assignee: TH Kieserling and Albrecht GmbH and Co
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Filing: 1969-09-04
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Granted: 1972-05-02
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Expires: 1989-09-04
Abstract
Abstract An arrangement by which elongated articles are drawn through a carriage rolling on guide tracks extending along the drawing path. Rollers mounted on the carriage are pressed against the guide tracks through hydraulic cylinders to develop the friction required to move the carriage along the guide tracks. Hydraulic motors on the carriage are mechanically linked to the rollers for the purpose of supplying the necessary driving power of the carriage. The traction or driving force required to move the carriage for the drawing operation is developed entirely through friction between the rollers and the guide tracks.
Inventors
- 👤 Alfons Goeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:44
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/16; B21C1/27; B21C1/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
A drawbench for drawing elongated articles, comprising, in combination, guide means extending along a drawing path of said elongated articles; support means supporting said guide means; carriage means movable along said guide means for drawing said elongated articles along said drawing path; roller means rotatably mounted on said carriage means and in rolling contact with said guide means; drive means mounted on said carriage means for generating power required to move said carriage means along said guide means for drawing said articles, said power required to move said carriage means being transmitted to said carriage means solely through friction between said roller means and said guide means; and fluid operated pressure means cooperating with said roller means for pressing said roller means against said guide means with a pressure dependent upon the torque required for rotating said roller means.
Claim 2
Dependent Claim
139 words
A drawbench for drawing elongated articles, comprising, in combination, guide means extending along a drawing path of said elongated articles; support means supporting said guide means; carriage means movable along said guide means for drawing said elongated articles along said drawing path; roller means rotatably mounted on said carriage means and in rolling contact with said guide means; drive means mounted on said carriage means for generating power required to move said carriage means along said guide means for drawing said articles, said power required to move said carriage means being transmitted to said carriage means solely through friction between said roller means and said guide means; and fluid operated pressure means cooperating with said roller means for pressing said roller means against said guide means with a pressure dependent upon the torque required for rotating said roller means.
Claim 3
Dependent Claim
19 words
The drawbench for drawing elongated articles as defined in claim 1 wherein said drive means comprises hydraulic motor means.
Claim 4
Dependent Claim
34 words
The drawbench for drawing elongated articles as defined in claim 2 including parallel connected hydraulic flow line means communicating with said hydraulic motor means for conveying fluid flow to and from said motor means.
Claim 5
Dependent Claim
49 words
The drawbench for drawing elongated articles as defined in claim 3 including fluid pressure line means for transmitting fluid under pressure to said hydraulic motor means through said hydraulic flow line means; and check valve means between said hydraulic fluid flow line means and said fluid pressure line means.
Claim 6
Dependent Claim
44 words
The drawback for drawing elongated articles as defined in claim 4 said pressure means comprising hydraulically-operated piston means linked to said roller means for pressing said roller means against said guide means with pressure dependent upon the torque required to rotate said roller means.
Claim 7
Dependent Claim
48 words
The drawbench for drawing elongated articles as defined in claim 5 including hydraulic cylinder means for said piston means to actuate said piston means with pressurized fluid, said hydraulic cylinder means being connected in parallel with said hydraulic fluid flow line means for to said pressure line means.
Claim 8
Dependent Claim
27 words
The drawbench for drawing elongated articles as defined in claim 6 including pressure-setting valve means communicating with said fluid flow line means and said pressure line means.
Claim 9
Dependent Claim
31 words
The drawbench for drawing elongated articles as defined in claim 2 including hydraulic pump means communicating with said hydraulic motor means for supplying said hydraulic motor means with fluid under pressure.
Claim 10
Dependent Claim
137 words
A drawbench for drawing elongated articles comprising, in combination, guide means extending along a drawing path of said elongated articles; support means supporting said guide means; carriage means movable along said guide means for drawing said elongated articles along said drawing path; roller means rotatably mounted on said carriage means and in rolling contact with said guide means; drive means mounted on said carriage means for generating power required to move said carriage means along said guide means for drawing said articles, said power required to move said carriage means being transmitted to said carriage means solely through friction between said roller means and said guide means; and pressure means cooperating with said roller means for pressing said roller means against said guide means with a pressure dependent upon the torque required for rotating said roller means.
Claim 11
Dependent Claim
137 words
A drawbench for drawing elongated articles comprising, in combination, guide means extending along a drawing path of said elongated articles; support means supporting said guide means; carriage means movable along said guide means for drawing said elongated articles along said drawing path; roller means rotatably mounted on said carriage means and in rolling contact with said guide means; drive means mounted on said carriage means for generating power required to move said carriage means along said guide means for drawing said articles, said power required to move said carriage means being transmitted to said carriage means solely through friction between said roller means and said guide means; and pressure means cooperating with said roller means for pressing said roller means against said guide means with a pressure dependent upon the torque required for rotating said roller means.
Claim 12
Dependent Claim
48 words
The drawbench for drawing elongated articles as defined in claim 9 including drive linkage means connecting said roller means with said drive means; and bridge-shaped means for supporting said roller means and said drive linkage means and being movably mounted in a vertical plane in said carriage means.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |