British Patent Office - Abridgments Class 112 Sewing Embroidering 1921-1925 (1929)
British Patent Office · leaf 153
rent Specificaticn is provided with means for automatically re- ducing its speed while rounding the corners of the mattress on which it operates. Mounted on the main shaft 23 positively from the drive of the other cup 12 by which drives the pack- ing and sewing and shafts 16, 22 and spur-gearing… … layer and extends beneath the surface of the 14. The gear 19 is normally clutched to the upper layer, and the two series are concatenated shaft by a clutch 22 while the gear 28 is opera- by an additional thread. In the arrangement & tively connected to the shaft by a ratchet device loops shown in…
British patents · Patents · Sewing · Embroidering · Embroidery
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