US Patent 2,132,758, granted 11 October 1938 to Frank W. Preston of Paterson, N.J., for an improvement to the Emery-type narrow-ware loom. The loom has superposed banks of shuttles in an auxiliary batten. Three pickers on each slide, selected by a rotatable spindle with stops, let it weave one, two or three fabric banks at a time instead of only one. The document has two sheets of mechanical drawings (Figs. 1-8), a specification and seven claims.