Name/Title
"Wheat Lamp" Electric Miner's HeadlampEntry/Object ID
MW.0174Description
Electric headlamp comprised of a belt-worn rechargeable battery inside a red plastic case with metal lid, attached by a cord to a lamp which was affixed to the front of the helmet.Context
The Koehler Manufacturing Company produced this battery-powered cap lamp during the first half of the 20th century. Inventor Grant Wheat designed this lamp, leading to this type of lamp being called a “Wheat Lamp.”Collection
Coal Mining Tools, Fred Barkey CollectionMade/Created
Manufacturer
Koehler Manufacturing CompanyInscription/Signature/Marks
Type
EmbossingLocation
front of battery caseTranscription
LIQUID
<-------->
LEVEL
WHEAT
4 VOLT BATTERY U.S. PATENT NO. 3301713
DES. PATENT NO. 204798
(Koehler logo)
MARLBOROUGH, MASSACHUSETTS, U. S. A.Type
InscriptionLocation
metal lid of battery packTranscription
PERMISSIBLE
ELECTRIC CAP LAMP
APPROVAL 6D-36 ISSUED TO
KOEHLER MANUFACTURING CO.
CAUTION: User must not open headpiece
or battery housing
CERTIFIED
ELECTRIC CAP
LAMP
CANADA
EM&R
COAL MINES
NO.61L-2
