GB840369A - Improvements in or relating to screwdrivers - Google Patents
Improvements in or relating to screwdriversInfo
- Publication number
- GB840369A GB840369A GB7001/59A GB700159A GB840369A GB 840369 A GB840369 A GB 840369A GB 7001/59 A GB7001/59 A GB 7001/59A GB 700159 A GB700159 A GB 700159A GB 840369 A GB840369 A GB 840369A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaws
- screw
- sleeve
- chuck
- grip
- 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
- 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
- B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
840,369. Screwdrivers. GRAMIGER A. G., GEB. Feb. 27, 1959 [Dec. 9, 1958], No. 7001/59. Class 61. A screwdriver has a device for holding a screw against the tip of its blade 3 comprising jaws 6 on a chuck 8 displaceable relative to a surrounding sleeve 5 towards which the chuck is biassed by a spring 7 so that the jaws will grip the screw ; also means 11-12 for limiting the forward movement of the jaws relative to the blade and releasably holding them forward for insertion of the screw. The head of a setscrew a moves in a slot 10 in the sleeve to control relative movement between it and the chuck. The other end of the screw 9 can either be retained at B in the transverse groove 12 on the screwdriver shank 2 whilst the jaws are forward for insertion of the screwhead as in Fig. 1, or released to a position, such as A, in the longitudinal groove 11 so that the spring is free to pull the jaws back into the sleeve to cause them to grip the screwhead against the tip of the blade. A grip-ring 14 is provided for manual manipulation of the sleeve.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH840369X | 1958-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB840369A true GB840369A (en) | 1960-07-06 |
Family
ID=4541187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7001/59A Expired GB840369A (en) | 1958-12-09 | 1959-02-27 | Improvements in or relating to screwdrivers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB840369A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012030632A1 (en) * | 2010-09-03 | 2012-03-08 | Smith & Nephew, Inc. | Modified fastener and insertion tool |
CN105856138A (en) * | 2016-05-30 | 2016-08-17 | 国网山东省电力公司济南供电公司 | Screwdriver capable of clamping screws made of any material |
-
1959
- 1959-02-27 GB GB7001/59A patent/GB840369A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012030632A1 (en) * | 2010-09-03 | 2012-03-08 | Smith & Nephew, Inc. | Modified fastener and insertion tool |
US8459155B2 (en) | 2010-09-03 | 2013-06-11 | Smith & Nephew, Inc. | Modified fastener and insertion tool |
CN103180622A (en) * | 2010-09-03 | 2013-06-26 | 史密夫和内修有限公司 | Modified fastener and insertion tool |
CN105856138A (en) * | 2016-05-30 | 2016-08-17 | 国网山东省电力公司济南供电公司 | Screwdriver capable of clamping screws made of any material |
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