Accession No

4380

Brief Description

photographs showing instruments designed by Cambridge Scientific Instrument Company specially for the British Coal Dust Experiments Committee, English, c. 1910

Origin

England

Maker

Cambridge Scientific Instrument Company Ltd.

Class

ephemera; prints

Earliest Date

1895

Latest Date

1919

Inscription Date

Material

paper; card; glass; wood

Dimensions

height 699mm; breadth 635mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘Apparatus specially designed for The British Coal Dust Experiments Committee in connection with their
researches regarding the cause of explosions in Mines.
Instruments manufactured by
The Cambridge Scientific Instrument Co. Ltd.’ (bottom of mount)

Description Notes

Set of seven photographs mounted in one frame showing instruments designed by Cambridge Instrument Company specially for the British Coal Dust Experiments Committee, English, early C20th.

Main label at bottom of mount:
‘Apparatus specially designed for The British Coal Dust Experiments Committee in connection with their
researches regarding the cause of explosions in Mines.
Instruments manufactured by
The Cambridge Scientific Instrument Co. Ltd.’

Captions as follows:
‘Instrument for determining in conjunction with
a Time Marker an exact interval of time.’
‘Manometer for registering the pressure generated
during an explosion.’
‘Commutator for closing a series of
electrical circuits in rapid succession’
‘A device for collecting a sample of the products
of the explosion at a pre-determined instant.’
‘Machine for measuring the records
obtained on the Manometer.’
‘One of a series of Contact Breakers controlling the Commutator.’
‘Contact Maker actuated by the force of the explosion.’

Condition fair; complete

References

Events