A 'bonnetted' Clanny lamp, no. 19, c. 1882.
- Made:
- 1879-1886 in United Kingdom
- maker:
- William Reid Clanny
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Science Museum Group Collection
© The Board of Trustees of the Science Museum
Safety lamp, Clanny, no.19 (bonnetted), from the Royal Commission on Accidents in Mines, 1879-86, c.1882
Presented by The Royal Commission on Accidents in Mines.
This is of the standard form, except that over the gauze is slipped a copper bonnet as proposed by Messrs. W. Smethurst and J. Ashworth; this bonnet is double at the top and the bottom, so as to baffle the entering air and outgoing gases respectively. Thus protected the Commissioners found that the lamp was not dangerous in an explosive mixture having a velocity of 1,500 ft. per min. Illuminating power, 0·3 candlepower A lead plug lock is fitted.
Details
- Category:
- Mining & Ore Dressing
- Object Number:
- 1886-198
- Materials:
- brass (copper, zinc alloy) and glass
- type:
- miners' safety lamps and safety lamps
- credit:
- Geological Museum (Jermyn St.)
