GB1226855A - - Google Patents

Info

Publication number
GB1226855A
GB1226855A GB1226855DA GB1226855A GB 1226855 A GB1226855 A GB 1226855A GB 1226855D A GB1226855D A GB 1226855DA GB 1226855 A GB1226855 A GB 1226855A
Authority
GB
United Kingdom
Prior art keywords
lamps
fibre
light
aligning
lamp
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
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 filed Critical
Publication of GB1226855A publication Critical patent/GB1226855A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1827—Daylight signals using light sources of different colours and a common optical system

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1,226,855. Lamp signal. RAILROAD ACCESSORIES CORP. 30 Aug., 1968 [20 May, 1968], No. 41631/68. Heading B7N. [Also in Divisions F4, G2 and H1] A lamp signal for railways comprises a casing 32, three lamps 54, 55, 57 each constructed and arranged when energized to focus its light output at the entry of a bundle of optical fibres 72, 80 or 82, a cone shaped member 52 supporting at its apex the end of an optical fibre trunk 56 formed by combining the fibre bundles and a lens 34 which collimates light 100 issuing from the end of the fibre trunk 56. Red, yellow and green filters are provided between respective lamps and their associated fibre bundle ends and signalling current is applied to the lamps from terminals 90 via light intensity adjusting variable resistors 92. The lamps may be formed with an ellipsoidal reflector surface 112 at the rear, an annular shaped segment 114 of a spherical reflector surface at the front surrounding a transparent window 116. A sighting device may be provided for aligning the lamp with the railway track. The sighting device is aligned with the signal beam in the factory by adjusting the beam position until four photo-cells mounted in the corners of a target board, Fig. 9 (not shown), receive equal light and then aligning the sighting element with a set point on the target board.
GB1226855D 1968-05-20 1968-08-30 Expired GB1226855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73048268A 1968-05-20 1968-05-20

Publications (1)

Publication Number Publication Date
GB1226855A true GB1226855A (en) 1971-03-31

Family

ID=24935539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226855D Expired GB1226855A (en) 1968-05-20 1968-08-30

Country Status (5)

Country Link
US (1) US3576563A (en)
DE (1) DE1766835A1 (en)
ES (1) ES358339A1 (en)
FR (1) FR1588940A (en)
GB (1) GB1226855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2394592A (en) * 2002-10-21 2004-04-28 Dorman Traffic Products Ltd Optically aligned rail signal lamp

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344262A (en) * 1970-06-01 1974-01-16 Rank Organisation Ltd Optical signalling
DE2226959C3 (en) * 1972-06-02 1980-10-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Colored data display
GB1471741A (en) * 1973-09-06 1977-04-27 Zeiss Stiftung Signal indicato
JPS59124308A (en) * 1982-12-31 1984-07-18 Takashi Mori Construction and implement for matching photodetecting end of photoconductor with focal position of lens
JPS59188641A (en) 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd Silver halide photographic emulsion
CA2108198A1 (en) * 1992-10-13 1994-04-14 David A. Donatello Railway light signal
US5639047A (en) * 1995-07-24 1997-06-17 Union Switch & Signal, Inc. Railroad signal with remote light source
US5697584A (en) * 1995-07-27 1997-12-16 Union Switch & Signal Inc. Railroad searchlight signal with solid state illuminant and aspect indication
US6655102B1 (en) * 1999-10-01 2003-12-02 Larue John L. Camouflaged structure and method of camouflaging a structure against a background having a generally uniform composition
US6435459B1 (en) * 1999-10-28 2002-08-20 Dialight Corporation LED wayside signal for a railway
DE10022713B4 (en) * 2000-05-10 2004-02-05 Osram Opto Semiconductors Gmbh Signaling device for traffic signals
US6441750B1 (en) * 2000-08-22 2002-08-27 Power Signal Technologies Inc. Light alignment system for electronically steerable light output in traffic signals
US6937812B2 (en) * 2001-06-14 2005-08-30 Rockwell Automation Technologies, Inc. Multiple viewing angle cover having integral light pipe
DE102004013962A1 (en) * 2003-12-22 2005-07-21 Schott Ag Fresnel lens spotlight for pocket lamp, has diffusing screen placed in center of fresnel lens to produce scattered light ratio and aperture angle of light to provide mixing ratio of light relative to another light imaged by lens
DE10361118B4 (en) * 2003-12-22 2011-12-22 Auer Lighting Gmbh Fresnels
RU2302585C2 (en) * 2003-12-22 2007-07-10 Шотт Аг Searchlight
DE10361116B4 (en) * 2003-12-22 2010-06-17 Auer Lighting Gmbh Fresnels
US7223002B2 (en) * 2004-08-09 2007-05-29 Miller Jack V Hybrid fiber optic framing projector
US7415891B2 (en) * 2005-09-30 2008-08-26 Rockwell Automation Technologies, Inc. Sensor mounting structure with snapping feature
US7412900B2 (en) * 2005-09-30 2008-08-19 Rockwell Automation Technologies, Inc. Sensor mounting structure with adjustable swivel ball and panel mounting mechanism
US7527437B2 (en) * 2005-09-30 2009-05-05 Rockwell Automation Technologies, Inc. Sensor mounting structure with light pipe
US7546780B2 (en) * 2005-09-30 2009-06-16 Rockwell Automation Technologies, Inc. Sensor mounting structure allowing for adjustment of sensor position

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305185A (en) * 1937-08-12 1942-12-15 Gen Railway Signal Co Control switch for railway traffic controlling systems
US2589569A (en) * 1948-08-04 1952-03-18 Westinghouse Brake & Signal Optical system for use in light signals, indicators, and the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2394592A (en) * 2002-10-21 2004-04-28 Dorman Traffic Products Ltd Optically aligned rail signal lamp
GB2394592B (en) * 2002-10-21 2005-12-14 * Dorman Traffic Products Limited Signal

Also Published As

Publication number Publication date
ES358339A1 (en) 1970-08-16
US3576563A (en) 1971-04-27
DE1766835A1 (en) 1972-02-17
FR1588940A (en) 1970-03-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees