GB874654A - Improvements in and relating to railway vehicle axle counting systems - Google Patents

Improvements in and relating to railway vehicle axle counting systems

Info

Publication number
GB874654A
GB874654A GB1080057A GB1080057A GB874654A GB 874654 A GB874654 A GB 874654A GB 1080057 A GB1080057 A GB 1080057A GB 1080057 A GB1080057 A GB 1080057A GB 874654 A GB874654 A GB 874654A
Authority
GB
United Kingdom
Prior art keywords
photo
transistor
passage
photocell
rod
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
GB1080057A
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.)
MAURICE EMLYN EDWARDS
Siemens Mobility Ltd
Original Assignee
MAURICE EMLYN EDWARDS
Westinghouse Brake and Signal Co 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
Application filed by MAURICE EMLYN EDWARDS, Westinghouse Brake and Signal Co Ltd filed Critical MAURICE EMLYN EDWARDS
Priority to GB1080057A priority Critical patent/GB874654A/en
Publication of GB874654A publication Critical patent/GB874654A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/166—Optical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/167—Circuit details

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

874,654. Photo-electric circuits. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd., and EDWARDS, M. E. April 2, 1958 [April 2, 1957], No. 10800/57. Class 40(3) [Also in Groups XIX and XXX] A photo-electric sensing device for sensing the passage of railway vehicle axles for counting comprises a light unit L and photocell unit P and is associated with a circuit which produces a pulse in response to the passage of an axle. Light from a lamp A mounted at one focus of an elliptic reflector r is formed into a parallel beam by a bi-concave lens l, the beam then being reflected from a prism p formed at the end of a rod t of transparent material to pass along the rod whence the beam traverses the top of a rail, or passed through a slot in the rail, to be focused by a lens formed in the end of a second transparent rod w on a photo-sensitive device comprising a selenium photocell n, Fig. 1, adapted when illuminated to bias to cut off a transistor k. When the light beam is interrupted by the passage of wheel of vehicle, the transistor k onducts to energize a high speed relay APE which supplies a pulse to be counted. The photocell may be a photo-transistor or selenium photo-cell.
GB1080057A 1957-04-02 1957-04-02 Improvements in and relating to railway vehicle axle counting systems Expired GB874654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1080057A GB874654A (en) 1957-04-02 1957-04-02 Improvements in and relating to railway vehicle axle counting systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1080057A GB874654A (en) 1957-04-02 1957-04-02 Improvements in and relating to railway vehicle axle counting systems

Publications (1)

Publication Number Publication Date
GB874654A true GB874654A (en) 1961-08-10

Family

ID=9974498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1080057A Expired GB874654A (en) 1957-04-02 1957-04-02 Improvements in and relating to railway vehicle axle counting systems

Country Status (1)

Country Link
GB (1) GB874654A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294969A (en) * 1964-08-14 1966-12-27 Gen Signal Corp Hot wheel detector apparatus for railway vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294969A (en) * 1964-08-14 1966-12-27 Gen Signal Corp Hot wheel detector apparatus for railway vehicles

Similar Documents

Publication Publication Date Title
US3972622A (en) Electronic survey target
ES2090483T3 (en) DEVICE FOR AMPLIFICATION INSENSITIVE TO POLARIZATION.
CH515513A (en) Optical device for inserting or removing a Barlow amplifier in the path of light rays exiting a lens
GB1362319A (en) Apparatus and method for measuring the width of a strip
SE8902157D0 (en) PROCEDURE AND DEVICE FOR DETERMINING POSITIONS OF MOVEMENT ROADS
GB1130153A (en) Improvements in or relating to sorting apparatus
GB842631A (en) Improvements relating to devices for the recognition of printed characters
GB1307398A (en) Web inspection system
GB874654A (en) Improvements in and relating to railway vehicle axle counting systems
GB1362984A (en) Rangefinder
GB1004472A (en) Process and apparatus for examining transparent sheet materials
CH668678GA3 (en)
MY117679A (en) Optical pickup device
GB1080106A (en) Method of and apparatus for detecting lines on the surface of a travelling sheet
ATE85424T1 (en) REFLECTION TYPE PHOTOELECTRIC SWITCH.
LU58012A1 (en) METHOD AND DEVICE FOR MEASURING DISTANCE TRAVELED BY A GUIDED PATH VEHICLE, FOR EXAMPLE RAILWAY OR THE LIKE
JPS57200961A (en) Reader in optical magnetic disk recording and reproducing system
GB1298999A (en) Improvements in or relating to apparatus for detecting the passage of movable small bodies
JPS575179A (en) Optical character reader
SU150265A1 (en) Electron-optical tachometer
GB1260257A (en) Light sensitive apparatus
GB1489931A (en) Timber inspection methods and apparatus
JPS5769534A (en) Optical track tracing device
JPS56148770A (en) Self-servo magnetic disk device
FR2380601A1 (en) Optical coin testing appts. - compares image of coin with reference image formed as mask attached to objective lens