GB531585A - Improvements in and relating to timing devices for electric circuits - Google Patents
Improvements in and relating to timing devices for electric circuitsInfo
- Publication number
- GB531585A GB531585A GB21810/39A GB2181039A GB531585A GB 531585 A GB531585 A GB 531585A GB 21810/39 A GB21810/39 A GB 21810/39A GB 2181039 A GB2181039 A GB 2181039A GB 531585 A GB531585 A GB 531585A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- pivoted
- spring
- arm
- lever
- 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)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
531,585. Escapements. BRITISH THOMSONHOUSTON CO., Ltd. July 27, 1939, No. 21810. Convention date, July 28, 1938. [Class 139] [Also in Group XXXVII] A timing device particularly for delaying the starting of meters comprises a balanced oscillating weight 49 pivoted at a pin 50 fixed to a frame 22 and an escapement member 46 pivoted on a pin 47 fixed to the frame and having secured to it an arm 51 which is pivoted on an extension of the pin 47 both arm 51 and weight 49 being slotted and connected to an adjusting screw 54, the member 46 engaging a scape wheel 45 connected to its shaft by a one-way ratchet clutch. The wheel 45 has teeth 59 on the inside engaged by pawls 58-three pawls on the same axispivoted by their cylindrical bosses in recesses 57 or a spider 55 carried by the shaft 54. The shaft 44 carries a pinion 43 gearing with a toothed segment 42 formed on a lever 30 pivoted on a bolt 28 passed through the frame 22. The other end the lever is pivoted to a yoke 38 connected by a helical spring to an arm 17 secured to rock shaft 19. The spring bears at one end on the bottom of the yoke 38 the other end being attached to a rod passing through the spring and arm 17 and ending in a nut 41. The lever 30 carries a spring biassed bridge member 32 having contacts 33 to complete a circuit across terminals 35. The shaft 19 carries the plunger of a solenoid and three contactors connected in the circuit of a three-phrase motor. When the solenoid is energized, its armature is drawn into it and the shaft 19 is rocked making the three contactors and tensioning the spring of the timing device which after suitable delay completes circuit through contacts 33, 34. Specificaton 417,086 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US531585XA | 1938-07-28 | 1938-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB531585A true GB531585A (en) | 1941-01-07 |
Family
ID=21982307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21810/39A Expired GB531585A (en) | 1938-07-28 | 1939-07-27 | Improvements in and relating to timing devices for electric circuits |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE714086C (en) |
GB (1) | GB531585A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081546B (en) * | 1956-12-22 | 1960-05-12 | Siemens Ag | Switching device with at least two switching contacts to be actuated one after the other |
-
1939
- 1939-07-27 GB GB21810/39A patent/GB531585A/en not_active Expired
- 1939-07-28 DE DEL98644D patent/DE714086C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE714086C (en) | 1941-11-21 |
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