N.P.L. design horizontal projector by Precision Tool and Instrument Co. Ltd.
- Made:
- 1945
- designer:
- National Physical Laboratory
N.P.L. design horizontal projector by Precision Tool and Instrument Co. Ltd., c. 1945, including 4 1/2in. x 2 1/4in. lens, work stage, 2 shadow protractors 24 thread form templates, wall screen, floor rails, focussing pulleys, 2 cards
Two floor rails on wooden battens
Tube with double pulley fitting
Ten chairs for floor rails
Double pulley on wooden stand
Pulley mounted on boards
Box of 12 profiles
Box of 12 profiles
2 profiles mounted on boards
Shadow protractor in case
Straight edge fitting in case
Item in locked case
Crate containing 6 fittings
3 stops for floor rails
Two metal fittings
Weight with pulley
Projection screen with 2 elevating handwheels
Carriage from which projection screen is hung
Details
- Category:
- Industrial Metrology
- Object Number:
- 1982-972
- type:
- projector
- credit:
- Croydon College. Faculty of Technology
