Accession No

6563

Brief Description

Du Bois-Reymond-type induction coil (physiological stimulator), by Samuel Platts, English, early/mid- twentieth century

Origin

Sheffield, England

Maker

Samuel Platts

Class

physiology; electrical; laboratory apparatus

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

Wood; leather; Metal (copper, brass, iron?); cloth (cotton thread?)

Dimensions

(When folded:) 355 mm (width) x 135 mm (height) x 105mm (depth)

Special Collection

Provenance

Donated by an individual on or before 09/12/2010.

Inscription

SAMUEL PLATTS
MAKER
SHEFFIELD

Description Notes

Du Bois-Reymond-type induction coil (physiological stimulator), by Samuel Platts, English, early/mid- twentieth century.

Du Bois-Reymond-type induction coil, made by Samuel Platts, used as an electrical stimulus for physiological experiments. Two coils are fixed on a length of wood, the larger of which can be moved to adjust the distance between the two coils and thus differentiate the strength of the current. This model is missing the iron conductive strip (’iron hammer’) which reaches from the left pillar to the helmholtz coil and passes between the top screw and the central pillar (for comparison, see 6564). This hammer would be essential, as can interrupt the circuit, and prevent the stimulus from reaching the destination. The model can be extended to reach X cm, and has a ruler fixed ruler with a sliding pointer to elucidate exact measurement, up to 50cm. Copper coils are wrapped in green thread, which in places is fraying. Secondary coil is wrapped in leather.

Some scratches to wood, discolouration to the various metals. Very dirty.

References

Events