GB578508A - Improvements relating to electric torches - Google Patents

Improvements relating to electric torches

Info

Publication number
GB578508A
GB578508A GB17073/45A GB1707345A GB578508A GB 578508 A GB578508 A GB 578508A GB 17073/45 A GB17073/45 A GB 17073/45A GB 1707345 A GB1707345 A GB 1707345A GB 578508 A GB578508 A GB 578508A
Authority
GB
United Kingdom
Prior art keywords
battery
plunger
cap
class
improvements relating
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
GB17073/45A
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.)
ALLEN SUTCLIFFE POYNTON
Original Assignee
ALLEN SUTCLIFFE POYNTON
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 ALLEN SUTCLIFFE POYNTON filed Critical ALLEN SUTCLIFFE POYNTON
Priority to GB17073/45A priority Critical patent/GB578508A/en
Publication of GB578508A publication Critical patent/GB578508A/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)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

578,508. Battery lamps. POYNTON, A. S. July 4, 1945, No. 17073. [Class 39 (ii)] An electric torch has an air chamber 4 to cause it to float with the lamp above water. A switching device is constituted by a screw cap 14 which causes a plunger 15 to move the battery; the plunger acts through a rubber disc 13 which makes a watertight joint. The cap is prevented from complete removal by a projection 16 on the plunger which engages a lug in the cap. A diaphragm 20 separates the battery from the air space. Specifications 332,205, [Class 39 (ii)], and 502,821 are referred to.
GB17073/45A 1945-07-04 1945-07-04 Improvements relating to electric torches Expired GB578508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17073/45A GB578508A (en) 1945-07-04 1945-07-04 Improvements relating to electric torches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17073/45A GB578508A (en) 1945-07-04 1945-07-04 Improvements relating to electric torches

Publications (1)

Publication Number Publication Date
GB578508A true GB578508A (en) 1946-07-01

Family

ID=10088768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17073/45A Expired GB578508A (en) 1945-07-04 1945-07-04 Improvements relating to electric torches

Country Status (1)

Country Link
GB (1) GB578508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2343472A3 (en) * 2010-01-06 2014-03-26 Yunzhao Liu Floatable diving torch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2343472A3 (en) * 2010-01-06 2014-03-26 Yunzhao Liu Floatable diving torch

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