BE512866A - - Google Patents

Info

Publication number
BE512866A
BE512866A BE512866DA BE512866A BE 512866 A BE512866 A BE 512866A BE 512866D A BE512866D A BE 512866DA BE 512866 A BE512866 A BE 512866A
Authority
BE
Belgium
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.)
Publication of BE512866A publication Critical patent/BE512866A/xx

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Emergency Protection Circuit Devices (AREA)
BE512866D 1951-07-17 BE512866A (mo)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1694651A GB702230A (en) 1951-07-17 1951-07-17 Improvements relating to electric lighting systems also adapted for signalling purposes

Publications (1)

Publication Number Publication Date
BE512866A true BE512866A (mo)

Family

ID=10086510

Family Applications (2)

Application Number Title Priority Date Filing Date
BE512866D BE512866A (mo) 1951-07-17
BE422752D BE422752A (mo) 1951-07-17

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE422752D BE422752A (mo) 1951-07-17

Country Status (3)

Country Link
BE (2) BE422752A (mo)
GB (1) GB702230A (mo)
NL (2) NL46719C (mo)

Also Published As

Publication number Publication date
NL46719C (mo)
BE422752A (mo)
NL83016C (mo)
GB702230A (en) 1954-01-13

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