Normal drill for drilling the frame plates of watches. Normal drill for drilling the frame plates of watches
[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?] Drawing of escapements for clocks 1851
Original slide lathe, with separate lathe screw nut and two hex bolts, by Richard Roberts, Manchester, Lancashire, England, 1817 Richard Roberts' Original slide lathe, with separate lathe screw nut and two hex bolts 1817
Components of normal drill for drilling the frame plates of watches, by Richard Roberts, Manchester. Drill Components pre-1851