Three gauges, tool for securing interchangeability in photographic lenses and two samples of same.

Made:: 1892 in Leicester

maker:: Taylor, Taylor and Hobson Limited

Three gauges, tool for securing interchangeability in photographic lenses and two samples of same.

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Three gauges, a tool used for securing interchangeability in photographic lenses and two samples of the finished item;made by Taylor, Taylor and Hobson and dated c 1892. all mounted on a display board.

Double limit external caliper for 1.5"diam 24 t.p.i. thread.

1892

Double limit internal plug gauge for 1.5"diam 24 t.p.i. threads

1892

Chaser for cutting 24 t.p.i.internal or external threads

1892

A ring gauge used to locate 'Zero Point' to suit the marking system

1892

An example of an internally and externally threaded lens holder

1892

Threaded lens ring

1892

Details

Category:: Industrial Metrology

Object Number:: 1893-252

Materials:: steel and brass

Measurements:: Mounting board: 11 x 21.5 x 21.5 cm

type:: gauges

credit:: Taylor Hobson Limited

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