Drawing of escapements for clocks

Made:
1851
maker:
Richard Roberts

[Drawing of escapements for clocks] / Richd. Roberts. 1851. [Line drawing with colour wash. Shows 'Detached crank-escapement', 'Detached pin wheel escap[ement]', and one other. Bears name 'Richd. Roberts, Patentee, Globe Works, Manchester'. Relates to patent 12,207 of July 1848?]

Details

Category:
Archive
Object Number:
1859-46
Materials:
cardboard
Measurements:
overall: 500 mm x 745 mm
type:
engineering drawing
credit:
Patent Office Museum