GB191217575A - Improvements in Wrenches for Gripping Cylindrical Objects. - Google Patents
Improvements in Wrenches for Gripping Cylindrical Objects.Info
- Publication number
- GB191217575A GB191217575A GB191217575DA GB191217575A GB 191217575 A GB191217575 A GB 191217575A GB 191217575D A GB191217575D A GB 191217575DA GB 191217575 A GB191217575 A GB 191217575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chain
- block
- wrenches
- pawl
- pivoted
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/52—Chain or strap wrenches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
17,575. Maher, J., Pfaff, H. E., Campbell, L. L., and Terry, T. July 29. Chain wrenches.-Relates to pipe wrenches of the kind comprising a serrated gripping-surface acting in conjunction with a chain. The toothed block 5 is slidably mounted in the end of the handle 1 and its shoulders are engaged by cams 9 pivoted on the pin 8 and projecting from a lever 10 connected to the chain 11, whereby, during the operation of the wrench the block is forced outwardly with sufficient force to bite into the pipe or the like. The locking of the chain is effected by a pawl 18 pivoted on a pin 19 in a slot 12 and provided with a concave lower end 20 adapted to engage one of the chain pins or rollers and hold the adjacent links against a surface 15 on a block 13 shaped to conform to the configuration thereof or that the pressure is borne by the block and links and only to a small extent by the chain pins or rollers. A blade spring 21 maintains the pawl in engaged or disengaged position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191217575T | 1912-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191217575A true GB191217575A (en) | 1913-04-10 |
Family
ID=32642418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191217575D Expired GB191217575A (en) | 1912-07-29 | 1912-07-29 | Improvements in Wrenches for Gripping Cylindrical Objects. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191217575A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2834238A (en) * | 1956-03-06 | 1958-05-13 | Sr Fredrick D Stover | Pipe wrench with cooperating slidable jaw and flexible pipe holding means |
US3302497A (en) * | 1965-02-23 | 1967-02-07 | Dale D Paden | Chain pipe wrench |
CN101811291A (en) * | 2009-02-19 | 2010-08-25 | 纬泰机械(上海)有限公司 | Chain clamp |
-
1912
- 1912-07-29 GB GB191217575D patent/GB191217575A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2834238A (en) * | 1956-03-06 | 1958-05-13 | Sr Fredrick D Stover | Pipe wrench with cooperating slidable jaw and flexible pipe holding means |
US3302497A (en) * | 1965-02-23 | 1967-02-07 | Dale D Paden | Chain pipe wrench |
CN101811291A (en) * | 2009-02-19 | 2010-08-25 | 纬泰机械(上海)有限公司 | Chain clamp |
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