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Labor-saving looms : a brief treatise on plain weaving and the recent improvements in that line, with special reference to the Northrup looms manufactured by Draper company, Hopedale, Mass., U. S. A. (1904)

Draper, George Otis, 1867-1923 · Milford, Mass. : Printed by Cook & sons · leaf 102

An illustration from Labor-saving looms : a brief treatise on plain weaving and the recent improvements in that line, with special reference to the Northrup looms manufactured by Draper company, Hopedale, Mass., U. S. A., 1904, leaf 102
ch affect the width, and their results should notbe confused with the let-off action. A recent test of actual ten-sion at the whip roll duringthe entire time a beam w^as weavingoff showed that the variation w^as confined between 33 1-3 and32 pounds—certainly a remarkable uniformity for this class… … BARTLETT LET-OFF. The Bartlett was our standard until the Draper-Roper let-off appeared. We owned the original vSnell and Bartlett patentand sold over 50,000 ol them for use on old and new loomsbefore 1870. 96

Looms

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