GB423725A - Circuit arrangement for effecting switching operations by means of current impulses of short duration - Google Patents
Circuit arrangement for effecting switching operations by means of current impulses of short durationInfo
- Publication number
- GB423725A GB423725A GB26961/34A GB2696134A GB423725A GB 423725 A GB423725 A GB 423725A GB 26961/34 A GB26961/34 A GB 26961/34A GB 2696134 A GB2696134 A GB 2696134A GB 423725 A GB423725 A GB 423725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- relay
- coil
- relays
- hammer
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L13/00—Operation of signals from the vehicle or by the passage of the vehicle
- B61L13/04—Operation of signals from the vehicle or by the passage of the vehicle using electrical or magnetic interaction between vehicle and track, e.g. by conductor circuits using special means or special conductors
- B61L13/047—Operation of signals from the vehicle or by the passage of the vehicle using electrical or magnetic interaction between vehicle and track, e.g. by conductor circuits using special means or special conductors controlling inductively or magnetically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Relay Circuits (AREA)
Abstract
423,725. Light current relays. BRONEE, T., 1, Kopischstrasse, Berlin. Sept. 19, 1934, No. 26961. Convention date, Sept. 26, 1933. [Class 38 (v)] [See also Group XXXVIII] Relays adapted to be operated by weak current impulses of short duration, particularly for the actuation of signals, counting mechanisms and the like by moving vehicles, have contacts which are caused to adhere together artificially by burning in such a manner that they remain in contact beyond the duration of the current impulse, the contacts being afterwards separated by the impacts of a hammer or vibrating mechanism. As shown in the Figure, the current impulses, which may be caused to emanate from a coil 1 on the passage of moving vehicles, are received by a relay A the coil 3 of which momentarily brings contacts 4 together on the first impulse. Immediately the contacts 4 engage a condenser 5, which has been charged by a battery 6, discharges across them and so fuses them temporarily together. The closing of the contacts 4 sets into operation a train of relays B .. D, of which the relay D completes at contacts 19 a controlled circuit fed from a transformer 21 across which signal lights 22, counting mechanisms 23 or further relays 24 may be connected. The controlled circuit also energizes an electromagnet 25 operating a vibrating hammer 26 which by striking either the casing of the relay A or the contacts 4 themselves, forces them apart in readiness for a subsequent operation. A thermal switch F is included in the circuit of coil 24 to interrupt its circuit and so reinforce periodically the blows of the hammer 26. If the contacts do not separate the whole system is ultimately cut off on operation of a slow-acting thermal relay E and switching-off relay G. The relay C is given a slow action by a series inductance 14 which with the relay coil 13 is bridged by resistance 15.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE423725X | 1933-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB423725A true GB423725A (en) | 1935-02-06 |
Family
ID=6472092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26961/34A Expired GB423725A (en) | 1933-09-26 | 1934-09-19 | Circuit arrangement for effecting switching operations by means of current impulses of short duration |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB423725A (en) |
-
1934
- 1934-09-19 GB GB26961/34A patent/GB423725A/en not_active Expired
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