GB1136790A - Improvements in or relating to a safety switch for a power operated knife or tool - Google Patents
Improvements in or relating to a safety switch for a power operated knife or toolInfo
- Publication number
- GB1136790A GB1136790A GB49237/66A GB4923766A GB1136790A GB 1136790 A GB1136790 A GB 1136790A GB 49237/66 A GB49237/66 A GB 49237/66A GB 4923766 A GB4923766 A GB 4923766A GB 1136790 A GB1136790 A GB 1136790A
- Authority
- GB
- United Kingdom
- Prior art keywords
- actuating member
- trigger
- button
- housing
- tool
- 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
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B7/00—Hand knives with reciprocating motor-driven blades
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Knives (AREA)
Abstract
1,136,790. Retractive switches. SCOVILL MFG. CO. 2 Nov., 1966 [10 Feb., 1966], No. 49237/66. Heading H1N. A safety switch for a power operated knife 12 or tool is provided with a housing 10 having two spaced apart openings therein, a manually operable switch actuating member 20 in the housing and including a trigger 24 accessible through one of the openings and a button 21 accessible through the other opening, limiting means 28 limiting the movement of trigger 24 out of its opening, a contact member 35 on actuating member 20, a fixed support 14, a bearing surface 26 extending transversely of actuating member 20 for bearing on fixed support 14 and thereby along with the limiting means 28 preventing depression of the button 21, and yielding means 30 bearing on fixed support 14 and urging actuating member 20 towards support-engaging position, actuating member 20 being pivotally movable when the trigger 24 is depressed relatively to the housing 10, whereby actuating member 20 is moved out of support-engaging position and depression of button 21 is permitted while trigger 24 is depressed. The moving contact engages a fixed contact 36.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US526541A US3358108A (en) | 1966-02-10 | 1966-02-10 | Power operated knife safety switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1136790A true GB1136790A (en) | 1968-12-18 |
Family
ID=24097762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49237/66A Expired GB1136790A (en) | 1966-02-10 | 1966-11-02 | Improvements in or relating to a safety switch for a power operated knife or tool |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3358108A (en) |
| BE (1) | BE689686A (en) |
| CH (1) | CH449745A (en) |
| DE (1) | DE1285040B (en) |
| ES (1) | ES333378A1 (en) |
| FR (1) | FR1499039A (en) |
| GB (1) | GB1136790A (en) |
| NL (1) | NL6700376A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694604A (en) * | 1971-04-09 | 1972-09-26 | Gen Electric | Switch for electric knife with wiping action contact shorting bar |
| US4032128A (en) * | 1975-10-16 | 1977-06-28 | Danfoss A/S | Pivotal bearing for an omega spring |
| US4122320A (en) * | 1976-08-16 | 1978-10-24 | Disston, Inc. | Hand-operated double-acting trigger switch |
| US4289070A (en) * | 1979-06-26 | 1981-09-15 | Cosco Industries, Inc. | Rubber stamp |
| US6185826B1 (en) | 1999-05-13 | 2001-02-13 | Scott Lutz | Electric slicing knife with switch guard |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2390846A (en) * | 1943-11-29 | 1945-12-11 | Guardian Electric Mfg Co | Handgrip control switch |
| US2916572A (en) * | 1958-05-23 | 1959-12-08 | Ulanet George | Electric switch responsive to the movements of the human body during sleep |
| US3132227A (en) * | 1961-08-28 | 1964-05-05 | Black & Decker Mfg Co | Trigger switch with lock for tool or appliance |
-
1966
- 1966-02-10 US US526541A patent/US3358108A/en not_active Expired - Lifetime
- 1966-11-02 GB GB49237/66A patent/GB1136790A/en not_active Expired
- 1966-11-14 BE BE689686D patent/BE689686A/xx unknown
- 1966-11-15 FR FR83591A patent/FR1499039A/en not_active Expired
- 1966-11-15 ES ES0333378A patent/ES333378A1/en not_active Expired
- 1966-11-17 CH CH1654466A patent/CH449745A/en unknown
- 1966-12-01 DE DES107211A patent/DE1285040B/en active Pending
-
1967
- 1967-01-11 NL NL6700376A patent/NL6700376A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6700376A (en) | 1967-08-11 |
| US3358108A (en) | 1967-12-12 |
| ES333378A1 (en) | 1967-08-01 |
| FR1499039A (en) | 1967-10-20 |
| BE689686A (en) | 1967-05-16 |
| CH449745A (en) | 1968-01-15 |
| DE1285040B (en) | 1968-12-12 |
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