GB862294A - Improvements in or relating to delayed action electric switches - Google Patents
Improvements in or relating to delayed action electric switchesInfo
- Publication number
- GB862294A GB862294A GB4295/58A GB429558A GB862294A GB 862294 A GB862294 A GB 862294A GB 4295/58 A GB4295/58 A GB 4295/58A GB 429558 A GB429558 A GB 429558A GB 862294 A GB862294 A GB 862294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- contactor
- retarder
- protuberance
- spindle
- 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
- 230000003111 delayed effect Effects 0.000 title 1
- 230000001934 delay Effects 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
- H01H7/02—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with fluid timing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanisms For Operating Contacts (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
862,294. Electromagnetic switches; retarding action of switches. TELEMECANIQUE ELECTRIQUE. Feb. 10, 1958 [March 7, 1957], No. 4295/58. Class 38 (5). A time-delay switching device operable by the spindle 31 of an electromagnetic contactor is in the form of a detachable unit that can be fitted to a contactor in two positions 180 degrees apart according to which direction of movement of the contactor spindle is required to operate the device. A rapid-break switch 1 has a button 3 spring loaded to bear against a protuberance 2 on a T-lever pivoted at 36 and coupled by pin 7 to a pneumatic retarder 8. When a finger 33, secured to the contactor spindle 31, moves as indicated by the arrow f 1 it impinges on the arm 5 so that the button 3 of the switch and the bellows of the retarder are depressed (a valve 9 allowing this to occur freely). When the finger 33 moves back the spring loading of switch 1 forces the protuberance 2 in the direction of arrow f 2 but the retarder 8 delays the restoration of the switch since air returns slowly to the bellows through a narrow calibrated orifice. The switch 1 and retarder assembly may be reversed in its casing 11 by removing screws 12 and 13 and reassembling (using hole 14 for screw 13) so that the above described operation occurs for the opposite movements of the finger 33, which then engages arm 4 of the T-lever (Fig. 6, not shown). The device is secured to a fixed part 20 of the contactor by means of a plate 21 on which the casing 11 is easily fitted or dismantled by virtue of a slotted bracket 24 and a tongue 22 slotted to be clamped by a screw 27. In a modification (Figs. 7, 8 and 9, not shown) the protuberance 2 is on arm 4 of the T-lever and the delay is thus applied to the opposite movement of the switch button 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR862294X | 1957-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB862294A true GB862294A (en) | 1961-03-08 |
Family
ID=9342769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4295/58A Expired GB862294A (en) | 1957-03-07 | 1958-02-10 | Improvements in or relating to delayed action electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB862294A (en) |
-
1958
- 1958-02-10 GB GB4295/58A patent/GB862294A/en not_active Expired
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