GB351211A - Improvements in or relating to shearing machines - Google Patents
Improvements in or relating to shearing machinesInfo
- Publication number
- GB351211A GB351211A GB16809/30A GB1680930A GB351211A GB 351211 A GB351211 A GB 351211A GB 16809/30 A GB16809/30 A GB 16809/30A GB 1680930 A GB1680930 A GB 1680930A GB 351211 A GB351211 A GB 351211A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutters
- switch
- generator
- driven
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
- B23D25/12—Shearing machines with blades on coacting rotating drums
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
351,211. Shearing; rolling. SCHLOEMANN AKT.-GES., 13, Steinstrasse, D³sseldorf, Germany. May 30, 1930, No. 16809. Convention date, Aug. 10, 1929. [Class 83 (iv).] In shears for cutting into lengths moving roller material, cutters 1 are mounted on shafts 2 coupled by gearing 4 and driven by synchronized electro motors 3. The movement of the cutters is initiated and stopped automatically by the roller material by contact of the end of the material with a switch for each separate cut. The circuit is shown in Fig. 3. A three phase generator 11 is driven from the rolling apparatus and supplies current to the induction motors 3 with squirrel-cage rotors on the cutter shafts. With heavy loads the generator is controlled by a switch 13 through a small exciting continuous current supplied from a dynamo 15 or from the mains. To bring the cutters to the at-rest position after a cut a switch 12 is closed to supply a direct current braking arrangement in known manner when the three-phase current from the generator is interrupted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE351211X | 1929-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB351211A true GB351211A (en) | 1931-06-25 |
Family
ID=6267155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16809/30A Expired GB351211A (en) | 1929-08-10 | 1930-05-30 | Improvements in or relating to shearing machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB351211A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3455193A (en) * | 1966-07-11 | 1969-07-15 | Walter L Jackson Jr | Material shear |
-
1930
- 1930-05-30 GB GB16809/30A patent/GB351211A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3455193A (en) * | 1966-07-11 | 1969-07-15 | Walter L Jackson Jr | Material shear |
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