Callendar’s Drum Apparatus

Physics · Unidentified

Accession Number: 2009.ph.56

Instrument Name: Callendar’s Drum Apparatus

Description:

A black wooden rectangular box with a label on top reading “Mechanical Equivalent of Heat; Callendar’s Drum Apparatus”. Inside this box there is a thermometer with a scale going from 10 to 30 degrees Centigrade, labeled “Centigrade 4614012″, “English Made”, “CIC”. The box also contains six 50 gram metal weights and 2 woven cords. At one end the 2 cords are attached together (approximately 39 cm long). At the other end there is a single cord approximately 41 cm long. One of the cords it is attached to a metal apparatus. The box also contains a hollow metal cylinder attached to a circular metal base (possibly a burner), a metal rod with double sided hooks, and a small metal pipe approximately 6 cm long.

Alternative Name:

Primary Materials: Wood, metal, glass, fabric, woven cord

Markings:

A black wooden rectangular box with a label on top reading “Mechanical Equivalent of Heat; Callendar’s Drum Apparatus”. The thermometer is labeled “Centigrade 4614012″, “English Made”, “CIC”

Dimensions (cm):

Height = 10.5 cm, Length = 37.5 cm, Width = 13 cm

Function:

For determining the mechanical equivalent of heat. Transfers heat into mechanical energy the quantity of which can be measured with 50 gram weights.

Condition:

Associated Instruments:

Manufacturer:

Mechanical Equivalent of Heat; Callendar’s Drum Apparatus

Date of Manufacture:

Provenance:

Donated to UTSIC: No

Historical Notes: