GB306822A - Improvements in or relating to electric switches - Google Patents
Improvements in or relating to electric switchesInfo
- Publication number
- GB306822A GB306822A GB5363/29A GB536329A GB306822A GB 306822 A GB306822 A GB 306822A GB 5363/29 A GB5363/29 A GB 5363/29A GB 536329 A GB536329 A GB 536329A GB 306822 A GB306822 A GB 306822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric switches
- switches
- electric
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/001—Housing of the drill, e.g. handgrip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US256895A US1741406A (en) | 1928-02-25 | 1928-02-25 | Switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB306822A true GB306822A (en) | 1930-02-27 |
Family
ID=22974048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5363/29A Expired GB306822A (en) | 1928-02-25 | 1929-02-18 | Improvements in or relating to electric switches |
Country Status (3)
Country | Link |
---|---|
US (1) | US1741406A (en) |
FR (1) | FR670146A (en) |
GB (1) | GB306822A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2512407A (en) * | 1944-06-02 | 1950-06-20 | Wood Barbara Isabel | Motor shaft coupling |
US2523170A (en) * | 1949-05-24 | 1950-09-19 | Westinghouse Electric Corp | Pendant switch for crane control |
US2798915A (en) * | 1954-01-04 | 1957-07-09 | James P Watson | Snap acting mechanism |
US4667119A (en) * | 1984-07-30 | 1987-05-19 | Holmes Zealy M | Trigger switch |
EP0321594A1 (en) * | 1987-12-21 | 1989-06-28 | van Laere, Christiaan G.M. | Electric rotary power tool apparatus holdable by hand during operation, kit comprising the same, and novel switch means therefor |
WO2001041958A1 (en) * | 1999-11-23 | 2001-06-14 | Javier Felices Palacio | Electrical safety switch for machinery |
ES2164007B1 (en) * | 1999-11-23 | 2003-05-16 | Palacio Javier Felices | ELECTRICAL SAFETY PRESSURE SWITCH FOR MACHINERY. |
-
1928
- 1928-02-25 US US256895A patent/US1741406A/en not_active Expired - Lifetime
-
1929
- 1929-02-18 GB GB5363/29A patent/GB306822A/en not_active Expired
- 1929-02-22 FR FR670146D patent/FR670146A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1741406A (en) | 1929-12-31 |
FR670146A (en) | 1929-11-25 |
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