GB401390A - Improvements in electro-magnetically-operable electric switches - Google Patents
Improvements in electro-magnetically-operable electric switchesInfo
- Publication number
- GB401390A GB401390A GB15584/32A GB1558432A GB401390A GB 401390 A GB401390 A GB 401390A GB 15584/32 A GB15584/32 A GB 15584/32A GB 1558432 A GB1558432 A GB 1558432A GB 401390 A GB401390 A GB 401390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- contact
- spring
- pin
- pivoted
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2708/00—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Mechanisms For Operating Contacts (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
401,390. Electromagnetic interrupters. RAMSDEN, L. A., 80, St. Ives Road, Platt Lane, Rusholme, Manchester. June 2, 1932, No. 15584. [Class 38 (v).] An electromagnetic interrupter has a spring- operated contact member arranged to energise alternately two operating electromagnets or solenoids, to operate a contact lever or switch arm the speed of movement of the contact lever or switch arm being controlled by an escapement mechanism, adjustable fixed contacts being provided to vary the duration of travel of the contact lever. As shown in Fig. 1 the solenoids B, B are energised alternately by the movements of a spring-operated contact-member a<3> which oscillates between relatively fixed contacts a<4>, a<4>. The movement of the contact member is effected through a reciprocating core b having a pin b<1> engaging a slot d in a pivoted arm D which bears a pin d<1> engaging a slot a in a lever A pivoted at a<1>. The outer end of the lever A is connected by a dead-centre spring a<2> to a pin and lever A<1> also pivoted at a<1> and carrying at its free end the movable contact a<3>. The lever A<1> is connected by a link c and gearing c<1> ... c<7> to an escapement c<8>. On energisation of an electromagnet B the core b is attracted and the consequent swinging over of lever D brings the spring a<2> across the dead-centre position. The contact a<3> is moved slowly across towards the other fixed contact under the control of the escapement, its engagement therewith serving to complete the circuit of the other electromagnet B and thus to initiate a succeeding operating cycle. The oscillation of the lever D may be utilised to operate controlled circuits by means of pins d<4> (Fig. 7), which engage and step round a star wheel D<1> driving around cams F, F<1> (Fig. 8), these cams being arranged to operate rollers g carried by pivoted cams g<1> to which are attached spring contact blades G co-operating with fixed contacts 6. A spring detent e engaging the pin d<2> holds the lever D in its displaced positions. The fixed contacts a<4> are carried on an insulated plate A<3> adapted to be adjusted by a screw a<5> to vary the frequency of operation of the interrupter by increasing or decreasing the distance of travel of the movable contact a<3> under the control of the escapement retarding device.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE396637D BE396637A (en) | 1932-06-02 | ||
GB15584/32A GB401390A (en) | 1932-06-02 | 1932-06-02 | Improvements in electro-magnetically-operable electric switches |
US670318A US1990566A (en) | 1932-06-02 | 1933-05-10 | Automatic intermittent switch |
DER88047D DE653486C (en) | 1932-06-02 | 1933-05-31 | Time switch device for reversing several circuits by means of two electromagnets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15584/32A GB401390A (en) | 1932-06-02 | 1932-06-02 | Improvements in electro-magnetically-operable electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB401390A true GB401390A (en) | 1933-11-16 |
Family
ID=10061727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15584/32A Expired GB401390A (en) | 1932-06-02 | 1932-06-02 | Improvements in electro-magnetically-operable electric switches |
Country Status (4)
Country | Link |
---|---|
US (1) | US1990566A (en) |
BE (1) | BE396637A (en) |
DE (1) | DE653486C (en) |
GB (1) | GB401390A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434070A (en) * | 1943-04-08 | 1948-01-06 | Henry R Gross | Flasher |
US2524320A (en) * | 1947-09-27 | 1950-10-03 | Louis C King | Electromagnetic bell striker |
US2625948A (en) * | 1949-03-01 | 1953-01-20 | John C Marlow | Delayed-action pulsator valve |
US2747115A (en) * | 1953-03-17 | 1956-05-22 | Thomas D Bowes | Variable ratio transmission responsive to speed of load |
US3070733A (en) * | 1958-10-29 | 1962-12-25 | Gen Motors Corp | Windshield wiper motors |
US3081622A (en) * | 1959-12-17 | 1963-03-19 | Intraub Julius | Device for the measurement of vibration displacement |
-
0
- BE BE396637D patent/BE396637A/xx unknown
-
1932
- 1932-06-02 GB GB15584/32A patent/GB401390A/en not_active Expired
-
1933
- 1933-05-10 US US670318A patent/US1990566A/en not_active Expired - Lifetime
- 1933-05-31 DE DER88047D patent/DE653486C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE396637A (en) | |
DE653486C (en) | 1937-11-25 |
US1990566A (en) | 1935-02-12 |
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