GB604210A - Improvements in or relating to emergency electric lamps - Google Patents

Improvements in or relating to emergency electric lamps

Info

Publication number
GB604210A
GB604210A GB13345/45A GB1334545A GB604210A GB 604210 A GB604210 A GB 604210A GB 13345/45 A GB13345/45 A GB 13345/45A GB 1334545 A GB1334545 A GB 1334545A GB 604210 A GB604210 A GB 604210A
Authority
GB
United Kingdom
Prior art keywords
lamp
casing
battery
housing
switch
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
GB13345/45A
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.)
ALEC OSWALD ROBERTS
Oldham Crompton Batteries Ltd
Original Assignee
ALEC OSWALD ROBERTS
Oldham Crompton Batteries 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 ALEC OSWALD ROBERTS, Oldham Crompton Batteries Ltd filed Critical ALEC OSWALD ROBERTS
Priority to GB13345/45A priority Critical patent/GB604210A/en
Publication of GB604210A publication Critical patent/GB604210A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00—Systems of electric lighting devices
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/29—Circuits providing for substitution of the light source in case of its failure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

604,210. Electric battery lamps. OLDHAM & SON, Ltd., and ROBERTS, A. O. May 28, 1945, No. 13345. [Class 39(ii)] [Also in Group XXXV] A portable electric battery lamp, adapted to serve as an emergency lamp upon failure of current to an electric lighting circuit, comprises a casing 4 consisting of a battery chamber 5 and an upper metal closure 6 housing a bulb 1, reflector 2, glass 3 and a switch box. The switch box has a base 8 of insulating material supporting terminals 13, 14 which co-operate with an iron switch arm 9 pivoted at 10 and carrying contact 9a which is normally closed preferably by gravity action on to contact 12 on the terminal 13 to complete the battery circuit to the lamp bulb 1. The battery casing 5 carries shoulders 20 which engage with runners 19 of a supporting casing 16 fixed to a wall W and, housing an electromagnet which is energised from the lighting circuit to maintain the switch contacts 9a, 12 open when the lamp is in position in the casing 16. The lamp casing may be provided with external battery charging terminals as described in Specification 604,192 and also with eyes by which the lamp may be suspended from a wall or ceiling box housing the electromagnet.
GB13345/45A 1945-05-28 1945-05-28 Improvements in or relating to emergency electric lamps Expired GB604210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13345/45A GB604210A (en) 1945-05-28 1945-05-28 Improvements in or relating to emergency electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13345/45A GB604210A (en) 1945-05-28 1945-05-28 Improvements in or relating to emergency electric lamps

Publications (1)

Publication Number Publication Date
GB604210A true GB604210A (en) 1948-06-30

Family

ID=10021263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13345/45A Expired GB604210A (en) 1945-05-28 1945-05-28 Improvements in or relating to emergency electric lamps

Country Status (1)

Country Link
GB (1) GB604210A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037590B (en) * 1955-12-24 1958-08-28 Hans Joachim Von Hippel Dr Ing Mining lamp, which can be inductively connected to the lighting network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037590B (en) * 1955-12-24 1958-08-28 Hans Joachim Von Hippel Dr Ing Mining lamp, which can be inductively connected to the lighting network

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