GB978020A - Improvements in or relating to timing devices - Google Patents

Improvements in or relating to timing devices

Info

Publication number
GB978020A
GB978020A GB3856562A GB3856562A GB978020A GB 978020 A GB978020 A GB 978020A GB 3856562 A GB3856562 A GB 3856562A GB 3856562 A GB3856562 A GB 3856562A GB 978020 A GB978020 A GB 978020A
Authority
GB
United Kingdom
Prior art keywords
input
gate
section
opened
red
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
Application number
GB3856562A
Inventor
Gerhard Werner Gore
Colin Green
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Components Ltd
Original Assignee
Mullard Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL298850D priority Critical patent/NL298850A/xx
Application filed by Mullard Ltd filed Critical Mullard Ltd
Priority to GB3856562A priority patent/GB978020A/en
Priority to DEN23861A priority patent/DE1185655B/en
Publication of GB978020A publication Critical patent/GB978020A/en
Expired legal-status Critical Current

Links

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
    • G04F1/005—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers using electronic timing, e.g. counting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L21/00—Station blocking between signal boxes in one yard
    • B61L21/06—Vehicle-on-line indication; Monitoring locking and release of the route
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electronic Switches (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Lock And Its Accessories (AREA)
  • Toys (AREA)

Abstract

978,020. Route setting. MULLARD Ltd. June 6, 1963 [Oct. 11, 1962], No. 38565/62. Heading B7N. [Also in Division H3] Points 30, Fig. 3, in the path of an approaching train in section Y are locked for a predetermined period after a colour light signal 33 is changed to red, the arrangement preventing route switching from section W to section Z while the possibility exists of the points being changed under the train if the signal is overrun. As shown in Fig. 4, if the signal 33 is red an input is applied to an AND gate 38, and if an input 49 is also applied to the gate an output 50 is obtained which releases the point lock. The input 49 is obtained from an OR gate 37 which is opened by an input 44 indicating that section Y is unoccupied or by an input 45 if the section Z is occupied. Gate 37 is also opened by an input 46 which is obtained from the red light input 48 through a delay device 39 providing, for example, a 30-second delay. When an output is obtained from gate 38 a " stick " input is applied to the gate through gate 37. The input 44 is obtained from an AND gate 35 which is opened by a Y clear input 43 and a simultaneous input 42 from an OR gate 34, the latter gate being opened if section X is clear (input 40) or if colour light signal 31 is free of approach locking (input 41). Details of the delay device are disclosed (see Division H3).
GB3856562A 1962-10-11 1962-10-11 Improvements in or relating to timing devices Expired GB978020A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL298850D NL298850A (en) 1962-10-11
GB3856562A GB978020A (en) 1962-10-11 1962-10-11 Improvements in or relating to timing devices
DEN23861A DE1185655B (en) 1962-10-11 1963-10-10 Delay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3856562A GB978020A (en) 1962-10-11 1962-10-11 Improvements in or relating to timing devices

Publications (1)

Publication Number Publication Date
GB978020A true GB978020A (en) 1964-12-16

Family

ID=10404304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3856562A Expired GB978020A (en) 1962-10-11 1962-10-11 Improvements in or relating to timing devices

Country Status (3)

Country Link
DE (1) DE1185655B (en)
GB (1) GB978020A (en)
NL (1) NL298850A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053447A1 (en) * 1980-11-28 1982-06-09 Honeywell Inc. Fail safe digital timer
GB2152259A (en) * 1983-12-29 1985-07-31 Gen Signal Corp Railway track switch control apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288164B (en) * 1965-10-23 1969-01-30 Robert Bosch Gmbh Elektronik U Circuit arrangement for generating an identification or selective call sign

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920191A (en) * 1952-10-28 1960-01-05 Rca Corp Trigger circuit
NL212452A (en) * 1955-11-25
DE1068752B (en) * 1956-12-28 1959-11-12 General Electric Company, New York, N. Y. (V. St. A.) Device for generating a pulse train delayed with respect to a synchronization pulse train

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053447A1 (en) * 1980-11-28 1982-06-09 Honeywell Inc. Fail safe digital timer
GB2152259A (en) * 1983-12-29 1985-07-31 Gen Signal Corp Railway track switch control apparatus

Also Published As

Publication number Publication date
NL298850A (en)
DE1185655B (en) 1965-01-21

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