Micrometer surface testers

Two micrometer surface testers used together and with electric bell system to measure divergence from flatness of large plane surfaces; designed and used by Dr. P.E. Shaw for experimental work in 1911.

Details

Category:
Industrial Metrology
Object Number:
1931-780
Materials:
cast iron, steel
Measurements:
each of two: 11.5 x 33.6 x 2.7 cm
type:
surface flatness testing system
credit:
Professor P.E. Shaw

Parts

Two micrometer surface testers used together and with electr

Two micrometer surface testers used together and with electr

Box for two micrometer surface testers used together and with electric bell system to measure divergence from flatness of large plane surfaces; designed and used by Dr. P.E. Shaw for experimental work in 1911.

Object Number:
1931-780/3
type:
surface flatness testing system