GB174706A - Improvements relating to locks for miners' safety lamps and for similar purposes - Google Patents

Improvements relating to locks for miners' safety lamps and for similar purposes

Info

Publication number
GB174706A
GB174706A GB30413/20A GB3041320A GB174706A GB 174706 A GB174706 A GB 174706A GB 30413/20 A GB30413/20 A GB 30413/20A GB 3041320 A GB3041320 A GB 3041320A GB 174706 A GB174706 A GB 174706A
Authority
GB
United Kingdom
Prior art keywords
miners
locks
safety lamps
improvements relating
similar purposes
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
GB30413/20A
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.)
THOR ELECTRIC SAFETY LAMP COMP
Original Assignee
THOR ELECTRIC SAFETY LAMP COMP
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 THOR ELECTRIC SAFETY LAMP COMP filed Critical THOR ELECTRIC SAFETY LAMP COMP
Priority to GB30413/20A priority Critical patent/GB174706A/en
Publication of GB174706A publication Critical patent/GB174706A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells

Landscapes

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

Abstract

174,706. Thor Electric Safety Lamp Co., Ltd., and Stretton, T. Oct. 27, 1920. Miners' safety lamps; reservoirs, attaching to lanterns. -A lock for miners' safety lamps &c. which is inaccessible from without the lamp comprises a magnetically-operated locking-bolt g, carried by the lamp top b, adapted to engage a recess f formed in the upper part d of the cell container or base part a and open at the inside and at the top.
GB30413/20A 1920-10-27 1920-10-27 Improvements relating to locks for miners' safety lamps and for similar purposes Expired GB174706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30413/20A GB174706A (en) 1920-10-27 1920-10-27 Improvements relating to locks for miners' safety lamps and for similar purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30413/20A GB174706A (en) 1920-10-27 1920-10-27 Improvements relating to locks for miners' safety lamps and for similar purposes

Publications (1)

Publication Number Publication Date
GB174706A true GB174706A (en) 1922-01-27

Family

ID=10307297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30413/20A Expired GB174706A (en) 1920-10-27 1920-10-27 Improvements relating to locks for miners' safety lamps and for similar purposes

Country Status (1)

Country Link
GB (1) GB174706A (en)

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