History
The Mine Safety Appliances Company (MSA) was created in 1914 in the United States following a streak of coal mine disasters. Among them was the largest coal mine disaster in US history with 362 deaths at the Monongah Coal mine in West Virginia in 1907. MSA enlisted Thomas Edison to design a battery-powered headlamp.
The steel case is designed to hold three rechargeable battery cells. A magnetic lock closes the lid to prevent users from opening the lid once underground, limiting the chances of sparks. The battery case is attached to the miner's belt and the headpiece is attached to a hat or helmet. Used to give light inside of a mine.
Description
On the battery, an inscription reads: 'Edison
Thomas A. Edison of Canada Limited Montreal, P.Q.
For use only in Canada and Newfoundland.'
The stamp in the plate on the side of the case reads:
'Permissible
Electric Cap Lamp
Approval No. 26
Issued to Thomas A. Edison Incorporated
Caution
The battery and headpiece housing shall not be unlocked or opened by the lamp user except in the lamp house.'
The stamp on the front edge of the case reads: 'Edison Model P Cap Lamp made by Thomas A. Edison Incorporated West Orange, N.J. U.S.A.'
Item Details
- Materials: steel (alloy), plastic (material), textile material
- Accession Number: 983.113.001
- Manufacturer: Thomas A. Edison, Inc. West Orange, New Jersey (USA)
- Donor: High, Bill
- Donated: 1983/07/11
- Size: 12 x 4 x 22 cm