GB641586A - Improvements relating to board hammers - Google Patents
Improvements relating to board hammersInfo
- Publication number
- GB641586A GB641586A GB2512348A GB2512348A GB641586A GB 641586 A GB641586 A GB 641586A GB 2512348 A GB2512348 A GB 2512348A GB 2512348 A GB2512348 A GB 2512348A GB 641586 A GB641586 A GB 641586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- improvements relating
- ramp
- board
- hammer head
- hammers
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/20—Drives for hammers; Transmission means therefor
- B21J7/36—Drives for hammers; Transmission means therefor for drop hammers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/04—Frames; Guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
641,586. Power hammers. BRETTS PATENT LIFTER CO., Ltd., GOALBY, E., and MORIARTY, W. J. Sept. 27, 1948. No. 25123. [Class 83 (iv)] A board hammer comprises in combination with one or each of the vertical hammer head guides a, a ramp c, which is suspended from its upper end d, and fluid or mechanically-operable means f for varying the inward inclination of the ramp, the latter being adapted to exert a restraining force on the hammer head so that it may be lowered slowly and in a controllable manner if required.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2512348A GB641586A (en) | 1948-09-27 | 1948-09-27 | Improvements relating to board hammers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2512348A GB641586A (en) | 1948-09-27 | 1948-09-27 | Improvements relating to board hammers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB641586A true GB641586A (en) | 1950-08-16 |
Family
ID=10222579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2512348A Expired GB641586A (en) | 1948-09-27 | 1948-09-27 | Improvements relating to board hammers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB641586A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2781844A (en) * | 1954-06-25 | 1957-02-19 | Pacific Ind Mfg Co | Hydraulic hold-down for reciprocating ram |
US3388583A (en) * | 1966-02-08 | 1968-06-18 | Maximilian K. Nye | Precision ram structure for drop hammers |
US5746087A (en) * | 1995-07-19 | 1998-05-05 | The National Machinery Company | Heading slide guiding system |
-
1948
- 1948-09-27 GB GB2512348A patent/GB641586A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2781844A (en) * | 1954-06-25 | 1957-02-19 | Pacific Ind Mfg Co | Hydraulic hold-down for reciprocating ram |
US3388583A (en) * | 1966-02-08 | 1968-06-18 | Maximilian K. Nye | Precision ram structure for drop hammers |
US5746087A (en) * | 1995-07-19 | 1998-05-05 | The National Machinery Company | Heading slide guiding system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1174333A (en) | Furnace Delining Apparatus. | |
ES406389A1 (en) | Device for packing objects in a bag | |
GB641586A (en) | Improvements relating to board hammers | |
ES272426A1 (en) | Suspension device (Machine-translation by Google Translate, not legally binding) | |
FR1015179A (en) | Device for driving nails, bolts, studs and the like | |
GB1116331A (en) | Scaffolds or staging for workmen | |
DE837461C (en) | School blackboard with movable writing surface | |
GB676440A (en) | Improvements in or relating to steel props or chocks | |
GB918346A (en) | Hoisting attachment for a sewer winch | |
GB369723A (en) | Improvements in or relating to pit props | |
GB632935A (en) | Percussion drilling machine | |
GB755042A (en) | Device for setting-up props especially pit props | |
CH278370A (en) | Manually operated device with balancer system, for lifting and lowering people and loads. | |
GB872751A (en) | Cable winch for percussion tools, especially those used for percussion drilling | |
GB1334385A (en) | Pin extractor | |
GB662201A (en) | Improvements in locking arrangements for metal stanchions or pit props | |
GB298286A (en) | Improvements in or connected with furnace grates | |
GB1063836A (en) | Panel pin hammer | |
CH281043A (en) | Device for lifting and lowering the backstage on sailboats. | |
GB427439A (en) | Means for applying impact on pit props or other apparatus from a safe distance | |
GB697260A (en) | Improved pit support | |
GB921093A (en) | Travel limiting means for power-operated chain-hoists | |
CA456686A (en) | Hammer, axe and the like | |
FR1043410A (en) | Tool chuck combining drilling with direct drive and tapping with friction drive | |
GB644215A (en) | Improvements in clothes props |