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Experimental measuring machine designed by E.M. Eden

Experimental measuring machine designed by E.M. Eden

1918
Screw pitch measuring machine designed by E. M. Eden designed c. 1915, at the NPL, Teddington, made c. 1919, with a wooden accessory box.

Screw Pitch Measuring Machine

1915-1919
Eden's Screw diameter measuring machine; floating head type, 2" capacity with a pair of 14 t.p.i. needles.

Eden's screw diameter measuring machine, 1916

1916
N.P.L. Horizontal projection machine, without stand or screen; dated 1916

N.P.L. Horizontal projection machine

1916
N.P.L. Horizontal projection machine, without stand or screen; dated 1916 ( a sliding plate and vertical adjustment component is missing).

N.P.L. Horizontal projection machine

circa 1917-1919