US Patent 4,100,941, granted 18 July 1978 to David Ainsworth, Allan Beckett and Cyril Millward Atkinson, assigned to Northrop Weaving Machinery Limited. It describes a rapier loom in which a carbon-fibre-reinforced rapier is joined at its butt end to a parallel toothed drive rack. The rack runs in a slideway below the shed, so it can be lubricated without contaminating the fabric. The scan has a 2001 USPTO web printout of the abstract, claims and description, followed by the original patent pages with the front page, four sheets of drawings, and the two-column text with 11 claims.