Screw pitch measuring machine 3"x7". Designed by N.P.L. and made by G. Cussons Ltd in 1942. Complete with R7/8" standard thread test piece Screw pitch measuring machine 3"x7" 1942
Projection screw thread measuring apparatus of 1917 Projection screw thread measuring apparatus of 1917 1917
Barraclough's thermodynamic surface model Barraclough's thermodynamic surface model and a copy of same 1925-1930
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
N.P.L. Horizontal projection machine, without stand or screen; dated 1916 N.P.L. Horizontal projection machine 1916
Patent ribbon Atwood machine by G. Cussons Ltd, Manchester. Cussons & Johnsons Patent. With two timers Patent ribbon Atwood machine by G. Cussons Ltd 1920-1960
Apparatus for measuring the modulus of torsion, by G. Cussons Ltd., Manchester Apparatus for measuring the modulus of torsion 1908-1971
Water-cooled gas sampling system for vehicle emissions testing by G. Cussons Ltd. (to be drained of water before transit). On castors. Very incomplete, 1975 - 1980. Water-cooled gas sampling system for vehicle emissions testing by G. Cussons Ltd 1975-1980
model, scale 1:24, of Queen post roof erected over railway workshops at Worcester in 1845 by Sir John Fowler Model of Queen post roof, Worcester
model, scale 1:12, of roof of picture galleries west of the North Court, Victoria and Albert Museum Model of picture galleries roof at the Vistoria & Albert Museum
Clark's patent optical smoke box by G. Cussons Ltd., The Technical Works, Broughton, Manchester, No. P3365/29, post-1928 Clark's patent optical smoke box by G. Cussons Ltd. 1928-1971