GB805318A - Improvements in or relating to rotary shears - Google Patents
Improvements in or relating to rotary shearsInfo
- Publication number
- GB805318A GB805318A GB1847/57A GB184757A GB805318A GB 805318 A GB805318 A GB 805318A GB 1847/57 A GB1847/57 A GB 1847/57A GB 184757 A GB184757 A GB 184757A GB 805318 A GB805318 A GB 805318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- driven
- carriers
- gear
- flywheel
- 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
- B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
- B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
- B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
- B23D36/0041—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool moving continuously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Structure Of Transmissions (AREA)
Abstract
805,318. Shearing. KOPPERS CO., Inc. Jan. 17, 1957 [Jan. 18, 1956], No. 1847/57. Class 83 (4). [Also in Group VIII] A web fed by rollers 2 is cut transversely into lengths by means of blades 4 provided on carriers 3 which are driven from a shaft 16 through gearing 28, 29 and through speedvarying means which bring the peripheral speed of the blades 4 at the instant of cut substantially equal to the speed of the web, the speedvarying means being in the form of a differential unit 26 comprising bevel gears and a ring gear 27 which is driven from one end of a crank shaft 31, driven by gearing 29, 32 from the shaft 16, through a linkage assembly including a yoke 38, a rocking arm 42 and a rack and pinion 52, 53, the torques produced as the angular velocity of the carriers 3 is varied being counterbalanced by means of two flywheels 61, 62, and the variation in the angular velocity of the carriers 3 being regulated by means of a block 46, in which the arm 42 is pivotally mounted, which is movable along a slideway 47. The flywheel 61 is mounted on the output shaft of a second differential unit 26<SP>1</SP> having a ring gear 27<SP>1</SP> and a gear 28<SP>1</SP> engaging the gear 29, and the flywheel 62 is mounted on the shaft of a pinion 53<SP>1</SP> engaging a rack 52<SP>1</SP> forming part of a second linkage assembly including a rocking arm 42<SP>1</SP> and a yoke 38<SP>1</SP> driven from the other end of the crank shaft 31, the two linkage assemblies being 90 degrees out of phase.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US805318XA | 1956-01-18 | 1956-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB805318A true GB805318A (en) | 1958-12-03 |
Family
ID=22157984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1847/57A Expired GB805318A (en) | 1956-01-18 | 1957-01-17 | Improvements in or relating to rotary shears |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB805318A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2171050A (en) * | 1984-01-31 | 1986-08-20 | Astin France Sarl | Method and equipment for cyclically treating a travelling web |
-
1957
- 1957-01-17 GB GB1847/57A patent/GB805318A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2171050A (en) * | 1984-01-31 | 1986-08-20 | Astin France Sarl | Method and equipment for cyclically treating a travelling web |
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