A heavy, solid shiny black metal base. At one end the base rises into a solid metal mount. On the outer side of the mount there is a large black metal hook. The mount holds the base of a 24 cm long rectangular rod horizontally, parallel to the base. A square of copper (?) is attached to the far end of the metal rod. The far end of the rod is held by a screw attached to that end of the base with small strips of metal. A black wire electromagnet, diameter 2 cm, is mounted vertically to the base under the metal rod 18 cm from the mount. Adjacent to the electromagnet in a row along the base are five copper (?) terminals marked “Contact 1”, “Contact 2”, “Time Marker”, and “Battery”.
Accession Number: 2011.psy.44
Alternative Name: Electrical Timing Device
Primary Materials: Metal, Copper (?)
Marking on top of mount: “Made in England”, “____ 50140” (partially obscured by masking tape).
Height = 8.5, Width = 28.5, Length = 6.5
Marks time by oscillating at a constant rate. The metal rod is actuated (set in motion) by an electromagnet.
Associated Instruments: 2011.psy.38, 39, 43
Date of Manufacture:
Dept. of Psychology, University of Toronto
Additional Information and References: