GB230189A - Improvements in and relating to screwdrivers - Google Patents
Improvements in and relating to screwdriversInfo
- Publication number
- GB230189A GB230189A GB3091423A GB3091423A GB230189A GB 230189 A GB230189 A GB 230189A GB 3091423 A GB3091423 A GB 3091423A GB 3091423 A GB3091423 A GB 3091423A GB 230189 A GB230189 A GB 230189A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handle
- sleeve
- driver
- collar
- screwdriver
- 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
- B25B15/06—Screwdrivers operated by axial movement of 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
230,189. Henning, F. W. Dec. 8, 1923. Hand drills.-A screwdriver of the kind having means for holding the screw in position during screwing is provided with a chamber in which are mounted several rings of radially-disposed plungers chamfered on each side, and pressed against the screw for spiral springs. The stem of the screwdriver may be surrounded by a tube having a projecting handle and adapted to be clutched to the stem, so as to provide extra turning power. Constructions are also included comprising a simple archimedian screw action, or a combined ratchet clutch and archimedian screw device. The screwdriver may be replaced by a bradawl or drill. The rod a formed with a projection c to engage the slot in the head of the screw is rotatable within a guide tube d, on the forward end of which is secured a collar f. Rings of slots are cut through the collar and tube to receive a number of L-shaped bolts h chamfered at the ends and retained in position by annular springs k. The bolts h hold the screw resiliently whilst it is being positioned against, and driven into, the work. A handle e is provided on the guide tube d, and the latter may be made rigid with the driver a by means of a dog r engaging with the handle b. In the modification shown in Fig. 2, the driver a is rotated by a forward movement of the handle b, which is formed with a sleeve s extending into an enlarged portion of the guide tube d and has internal projections engaging a helical groove q in the driver a. When the handle is released it is forced outwards by a spring t with a rotary movement due to the helical groove q. In a further modification shown in Fig. 4 the driver a is similarly provided with a helical groove q engaged by internal projections on a collar u within a sleeve w. The forward end of the sleeve w moves over the driver a and its rear end is secured in the handle b. Two parts of a one-way clutch u<1> are formed respectively on one end of the collar u and on the adjacent part of the sleeve w, a light spring t' acting between rings y, x tending to keep the clutch in engagement. Rotary movement of the sleeve w relative to the guide tube d is prevented by projections on the outside of the sleeve, w engaging an internal groove z in the tube d. When the handle b is pushed in, the collar u becomes clutched to the sleeve w so that its inward movement rotates the driver a. The handle b may be rotatably connected to the sleeve w and the driver a operated by an oscillating movement of the guide tube handle e. A spring catch of the usual type may be fitted so that the screwdriver mav be removed and replaced by a different-sized screwdriver, bradawl, or drill.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3091423A GB230189A (en) | 1923-12-08 | 1923-12-08 | Improvements in and relating to screwdrivers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3091423A GB230189A (en) | 1923-12-08 | 1923-12-08 | Improvements in and relating to screwdrivers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB230189A true GB230189A (en) | 1925-03-09 |
Family
ID=10315045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3091423A Expired GB230189A (en) | 1923-12-08 | 1923-12-08 | Improvements in and relating to screwdrivers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB230189A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4526072A (en) * | 1983-08-19 | 1985-07-02 | Manhoff Jr Louis J | Screw holding device |
EP0387430A2 (en) * | 1986-12-30 | 1990-09-19 | Gemcor Engineering Corp. | Method and apparatus for inserting fasteners |
EP0547638A1 (en) * | 1991-12-19 | 1993-06-23 | Adolf Würth GmbH & Co. KG | Screwing device |
US5458030A (en) * | 1992-11-04 | 1995-10-17 | Betts; Geoffrey | Screwdrivers |
WO2011057808A1 (en) * | 2009-11-13 | 2011-05-19 | Peter Krall | Device for guiding screws when being screwed in |
WO2011068780A3 (en) * | 2009-12-01 | 2011-08-25 | Synthes Usa, Llc | Screw delivery system |
-
1923
- 1923-12-08 GB GB3091423A patent/GB230189A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4526072A (en) * | 1983-08-19 | 1985-07-02 | Manhoff Jr Louis J | Screw holding device |
EP0387430A2 (en) * | 1986-12-30 | 1990-09-19 | Gemcor Engineering Corp. | Method and apparatus for inserting fasteners |
EP0387430A3 (en) * | 1986-12-30 | 1990-12-05 | Gemcor Engineering Corp. | Method and apparatus for inserting fasteners |
EP0547638A1 (en) * | 1991-12-19 | 1993-06-23 | Adolf Würth GmbH & Co. KG | Screwing device |
US5458030A (en) * | 1992-11-04 | 1995-10-17 | Betts; Geoffrey | Screwdrivers |
WO2011057808A1 (en) * | 2009-11-13 | 2011-05-19 | Peter Krall | Device for guiding screws when being screwed in |
WO2011068780A3 (en) * | 2009-12-01 | 2011-08-25 | Synthes Usa, Llc | Screw delivery system |
US8534164B2 (en) | 2009-12-01 | 2013-09-17 | DePuy Synthes Products, LLC | Screw delivery system |
US8943927B2 (en) | 2009-12-01 | 2015-02-03 | DePuy Synthes Products, LLC | Screw delivery system |
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