GB643597A - Improvements relating to electric time delay devices - Google Patents
Improvements relating to electric time delay devicesInfo
- Publication number
- GB643597A GB643597A GB5766/48A GB576648A GB643597A GB 643597 A GB643597 A GB 643597A GB 5766/48 A GB5766/48 A GB 5766/48A GB 576648 A GB576648 A GB 576648A GB 643597 A GB643597 A GB 643597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- plunger
- solenoid
- position shown
- clockwork
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/86—Means for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
- H01H50/88—Mechanical means, e.g. dash-pot
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Electromagnets (AREA)
Abstract
643,597. Electromagnetic switches; actuation of switches. GUARDIAN ELECTRIC MANUFACTURING CO. Feb. 26, 1948, No. 5766. Convention date, Jan. 7, 1944. [Class 38(v)] In a time delay device, a clockwork timing mechanism is operated by the plunger of a solenoid through a pair of co-axially pivoted oppositely extending levers connected by spring means, so as to cause actuation of a switch after a predetermined time. The two levers 54, 60 are pivoted at 50 and urged away from each other by a coil spring 73 wound round pivot 50, a stop 70 on lever 60 maintaining them in the inline position shown. Operation of the solenoid 11 causing upward movement of the plunger, 12 rotates lever 54, the consequent stressing of the spring 73 rotating lever 60 anti-clockwise and actuating the ratchet 17 of the clockwork mechanism. After a predetermined time, a cam surface 68 on a cam 67 rotating with lever 60, engages a roller 84 and operates a snap-action switch 80. The upward movement of the plunger also stresses a second coil spring (not shown) on the pivot 50 which, when the solenoid is de-energized, returns the plunger to the position shown, lever 54 meanwhile engaging the stop 70 and carrying lever 60 round with it thereby moving ratchet 17 upwards, back to the position shown. The timing mechanism is thus automatically reset. Movement of the rack in the upward direction takes place through freewheel mechanism so that the clockwork mechanism is not actuated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517332A US2396523A (en) | 1944-01-07 | 1944-01-07 | Instant recycling time-delay relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB643597A true GB643597A (en) | 1950-09-20 |
Family
ID=24059372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5766/48A Expired GB643597A (en) | 1944-01-07 | 1948-02-26 | Improvements relating to electric time delay devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2396523A (en) |
| GB (1) | GB643597A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2938086A (en) * | 1960-05-24 | seiden | ||
| US2643026A (en) * | 1947-04-02 | 1953-06-23 | Cragar Packaging Co Inc | Timer controlled apparatus adapted to feed and measure materials |
| US3377871A (en) * | 1949-01-18 | 1968-04-16 | Atomic Energy Commission Usa | Portable timing mechanisms |
| US2716163A (en) * | 1952-02-29 | 1955-08-23 | North American Aviation Inc | Electrical switch assembly |
| US2774422A (en) * | 1952-09-16 | 1956-12-18 | Int Standard Electric Corp | Time delay mechanism |
| DE958857C (en) * | 1953-09-22 | 1957-02-28 | Licentia Gmbh | Timing relay with gear escapement |
| US2912051A (en) * | 1954-11-03 | 1959-11-10 | Eastman Kodak Co | Timer |
-
1944
- 1944-01-07 US US517332A patent/US2396523A/en not_active Expired - Lifetime
-
1948
- 1948-02-26 GB GB5766/48A patent/GB643597A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2396523A (en) | 1946-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB643597A (en) | Improvements relating to electric time delay devices | |
| GB748542A (en) | Electromagnetically driven counter | |
| GB1347938A (en) | Start/stop mechanism for a balance wheel | |
| US2235273A (en) | Circuit controlling device | |
| GB1388599A (en) | Circuit-breakters | |
| US2304627A (en) | Switching apparatus | |
| US2424551A (en) | Controlling mechanism | |
| GB879105A (en) | Timers | |
| US2402404A (en) | Circuit controller | |
| GB551877A (en) | Improvements in or relating to electrically controlled timing devices | |
| US2431849A (en) | Electric switch | |
| US1889334A (en) | Electric switch | |
| GB645527A (en) | Improvements in electric switches or contactors with delay action | |
| GB685766A (en) | Improvements relating to electric clocks | |
| US2451135A (en) | Time switch | |
| GB727260A (en) | Electric delayed-action switches | |
| GB815087A (en) | Cam-actuated electric switch | |
| GB583669A (en) | Improvements in switches, for controlling electrical circuits, actuated by electromagnetic means | |
| GB384527A (en) | Improvements in and relating to electric cooking apparatus | |
| GB404688A (en) | Improvements in time switches | |
| GB296745A (en) | Improvements in and relating to electric time switch mechanism | |
| GB684236A (en) | Improvements in or relating to ratchet-operated rotary mechanism | |
| GB1164728A (en) | An Electrically Controlled Time Signal-Producing System | |
| GB625001A (en) | Improvements in or relating to time delay switches | |
| GB549638A (en) | Improvements in and relating to electric delayed action relay switch mechanism |