GB638055A - An improved screwdriver - Google Patents
An improved screwdriverInfo
- Publication number
- GB638055A GB638055A GB1679148A GB1679148A GB638055A GB 638055 A GB638055 A GB 638055A GB 1679148 A GB1679148 A GB 1679148A GB 1679148 A GB1679148 A GB 1679148A GB 638055 A GB638055 A GB 638055A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- handle
- finger
- piece
- spring
- 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
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
-
- 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
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
- B25B15/04—Screwdrivers operated by rotating the handle with ratchet action
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
638,055. Screwdrivers. HITCHING, T. G. BROOKE-. June 22, 1948, No. 16791. [Classes 61 (i) and 61 (iii)] A screwdriver handle normally freely rotatable upon the screwdriver shaft is slidable upon the shaft against a spring to a position in which it is in clutch-like engagement with a finger-piece rigidly secured to the shaft. The handle 1 is bored to freely receive both the shaft 5 and an enlarged end portion thereof 8, which is urged against a shoulder 12 within the bore by a spring 11 retained in the bore by a screwed plug 10. The forward face of the handle 1 is provided with a plurality of projections 13 which are adapted, upon compression of the spring 11 by an axial force applied to the handle to engage within corresponding recesses 19 formed in the end of the finger-piece 14, which is rigidly moulded upon the shaft, whereby the handle is brought into driving relationship with the shaft. The handle 1, screwed plug 10 and finger-piece 14 may be of moulded synthetic resinous material. According to the Provisional Specification the finger-piece may be secured by a rivet passing through the finger-piece and shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1679148A GB638055A (en) | 1948-06-22 | 1948-06-22 | An improved screwdriver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1679148A GB638055A (en) | 1948-06-22 | 1948-06-22 | An improved screwdriver |
Publications (1)
Publication Number | Publication Date |
---|---|
GB638055A true GB638055A (en) | 1950-05-31 |
Family
ID=10083723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1679148A Expired GB638055A (en) | 1948-06-22 | 1948-06-22 | An improved screwdriver |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB638055A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127797A (en) * | 1962-05-01 | 1964-04-07 | Jesse P Rogers | Hand tool for rotating a threaded member having axially movable clutching handle sections |
US3827470A (en) * | 1973-03-01 | 1974-08-06 | H Douglas | Ratchet screw driver |
US4249435A (en) * | 1979-07-30 | 1981-02-10 | Smith William J | Workpiece turning hand tool with torque control |
GB2119685A (en) * | 1982-05-10 | 1983-11-23 | Rune H Son Olde | Tool for screwing rods into teeth |
GB2137545A (en) * | 1983-03-28 | 1984-10-10 | Goo Ton Lin | Screwdriver spanner or socket set |
GB2143453A (en) * | 1983-07-16 | 1985-02-13 | Shen Tsung Long | Comfortable screwdriver |
DE3630809A1 (en) * | 1986-09-10 | 1987-02-19 | Hans Quassowski | Screwdriver |
DE3830859A1 (en) * | 1988-09-10 | 1990-03-22 | Werner Hermann Wera Werke | SCREWDRIVER |
GB2243570A (en) * | 1990-05-02 | 1991-11-06 | Trevor Wells | Hand tools, eg screwdrivers |
EP0775552A1 (en) * | 1995-11-22 | 1997-05-28 | Snap-on Technologies, Inc. | Reversible ratcheting screwdriver with improved reversing ring |
GB2387346A (en) * | 2002-05-21 | 2003-10-15 | Keith England | A Screwdriver |
GB2393411A (en) * | 2002-09-16 | 2004-03-31 | Chih-Ching Hsieh | Ratchet screwdriver |
GB2415930A (en) * | 2002-09-24 | 2006-01-11 | Chih-Ching Hsieh | Screwdriver with changeable operation modes |
WO2024023526A3 (en) * | 2022-07-27 | 2024-03-28 | Nigel Buchanan | Insulated ratcheting screwdriver |
-
1948
- 1948-06-22 GB GB1679148A patent/GB638055A/en not_active Expired
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127797A (en) * | 1962-05-01 | 1964-04-07 | Jesse P Rogers | Hand tool for rotating a threaded member having axially movable clutching handle sections |
US3827470A (en) * | 1973-03-01 | 1974-08-06 | H Douglas | Ratchet screw driver |
US4249435A (en) * | 1979-07-30 | 1981-02-10 | Smith William J | Workpiece turning hand tool with torque control |
GB2119685A (en) * | 1982-05-10 | 1983-11-23 | Rune H Son Olde | Tool for screwing rods into teeth |
GB2137545A (en) * | 1983-03-28 | 1984-10-10 | Goo Ton Lin | Screwdriver spanner or socket set |
GB2143453A (en) * | 1983-07-16 | 1985-02-13 | Shen Tsung Long | Comfortable screwdriver |
DE3630809A1 (en) * | 1986-09-10 | 1987-02-19 | Hans Quassowski | Screwdriver |
DE3830859A1 (en) * | 1988-09-10 | 1990-03-22 | Werner Hermann Wera Werke | SCREWDRIVER |
GB2243570A (en) * | 1990-05-02 | 1991-11-06 | Trevor Wells | Hand tools, eg screwdrivers |
GB2243570B (en) * | 1990-05-02 | 1994-05-04 | Trevor Wells | Improvements in and relating to hand tools |
EP0775552A1 (en) * | 1995-11-22 | 1997-05-28 | Snap-on Technologies, Inc. | Reversible ratcheting screwdriver with improved reversing ring |
GB2387346A (en) * | 2002-05-21 | 2003-10-15 | Keith England | A Screwdriver |
GB2393411A (en) * | 2002-09-16 | 2004-03-31 | Chih-Ching Hsieh | Ratchet screwdriver |
GB2415930A (en) * | 2002-09-24 | 2006-01-11 | Chih-Ching Hsieh | Screwdriver with changeable operation modes |
WO2024023526A3 (en) * | 2022-07-27 | 2024-03-28 | Nigel Buchanan | Insulated ratcheting screwdriver |
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