Accession No

4966

Brief Description

recording oscilloscope electrocardiograph camera, by Cambridge Instrument Company Ltd., English, 1926

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Class

laboratory apparatus

Earliest Date

1926

Latest Date

1926

Inscription Date

Material

metal (brass, steel, oxidised brass); wood; glass; paper; cloth (baize); plastic

Dimensions

height 500 mm; breadth 302 mm; width 287 mm

Special Collection

Provenance

Transferred from the Department of Physiology, University of Cambridge, 23 January 1997.

Inscription

‘CAMBRIDGE
INSTRUMENT CO. LTD.
LONDON & CAMBRIDGE
C87954’ (brass plaque on one side)

Description Notes

Recording oscilloscope cardiograph camera, by the Cambridge Instrument Company, English, 1926. (This instrument is recorded in the CSI serial number ledger as one of a batch of 20 “M. 20-60mm paper camera for cardiographs”.)

Square wooden base on which is set a rectangular wooden box. Near the top of the front of the box is a glazed window behind which is set a paper scale divided [28] - 0 - [28], numbered by 10, subdivided to 1; the scale can be turned out of view by a brass knob on the side of the box. On the other side of the box is a black plastic plate with a brass pulley which turns a gear wheel (the motor for the pulley is missing); the gear wheel turns a brass drum inside the top of the box. This drum would have carried a recording paper. The top of the box is partially lined with green baize; inserted into this section is a smaller wooden box with a sliding side panel. Another wooden box can be slotted into the base of the main box. This last box has a sliding top panel with a steel guillotine.
One brass terminal on base.

Incomplete (missing motor)

References

Events