Collection

Projection screw thread measuring apparatus of 1917

Made:: 1917 in Broughton

maker:: George Cussons Limited

Projection screw thread measuring apparatus of 1917

Details

Category:: Industrial Metrology

Object Number:: 1968-432

Materials:: steel & glass

Measurements:: 24.0157 x 22.4409 x 26.378 in.; 61 x 57 x 67 cm

type:: profile measuring projector

credit:: National Physical Laboratory.

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Parts

Mirror support bracket for the projection screw thread measuring apparatus.

Mirror support bracket for the projection screw thread measuring apparatus.

Mirror support bracket for the projection screw thread measuring apparatus.

Measurements:: overall: 3.937 x 7.874 x 11.811 in.; 10 x 20 x 30 cm

Materials:: steel

Object Number:: 1968-432 Pt1

type:: profile measuring projector- bracket

Image ©: The Board of Trustees of the Science Museum

Support brackets for the mast of the projection screw thread measuring apparatus

Support brackets for the mast of the projection screw thread measuring apparatus

Two wall support brackets for supporting the mast of the projection screw thread measuring apparatus.

Materials:: steel

Object Number:: 1968-432 Pt2

type:: profile measuring projector- bracket

Image ©: The Board of Trustees of the Science Museum

Mirror for the projection screw thread measuring apparatus

Mirror for the projection screw thread measuring apparatus

A mirror for the projection screw thread measuring apparatus.

Measurements:: overall: 8 1/2 x 6 1/2 x 1/2 in.; 21.59 x 16.51 x 1.27 cm

Materials:: steel (metal)

Object Number:: 1968-432 Pt3

type:: profile measuring projector- bracket

Image ©: The Board of Trustees of the Science Museum