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Collection Record Detail

Object Name
Safety Switch
Object Number
ca1920-02-1
Description
Square metal box painted black. Hinged lid with screw to open. Handle on right. Brace encircling body with two projecting tabs on lid and under lid screw.
Comment
First safety switch of the Trumbull Vanderpoel Electrical Manufacturing Co. of Bantam. Called a Mason's Switch it was invented by Ralph Mason
Category
Tools and Equipment for Science and Technology
Date Made
ca. 1920
Dimensions
5 3/4" long x 5" wide x 4 3/4" high
Materials
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