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
GB3436636A
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.)
J H NAYLOR Ltd
Original Assignee
J H NAYLOR 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 J H NAYLOR LtdfiledCriticalJ H NAYLOR Ltd
Priority to GB3436636ApriorityCriticalpatent/GB466551A/en
Publication of GB466551ApublicationCriticalpatent/GB466551A/en
F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
F21L23/00—Non-electric hand-lamps for miners
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Non-Portable Lighting Devices Or Systems Thereof
(AREA)
Abstract
466,551. Miners' safety lamps. NAYLOR, Ltd., J. H., and SMITH, C. N. Dec. 15, 1936, No. 34366. [Class 75 (i)] The slotted dome 2 surrounding the wick of a miner's safety lamp is mounted in a carrier 5 which is adjusted by means of a threaded spindle 6 to regulate the air passing between the dome and the inner glass 4 to the flame.
GB3436636A1936-12-151936-12-15Improvements in miners' safety lamps
ExpiredGB466551A
(en)