1851 Great Exhibition: Official Catalogue: Class VI.: Duncan MacKenzie
From Graces Guide
39. MACKENZIE, DUNCAN, 31 Burton St., Tavistock Square.
Invention for frames and jacquard looms, including in one machine four different apparatus, namely — the reader, the press, the repeater, and the knife; facilitating labour and economising expense; reducing to mathematical exactness operations which have hitherto been matters of uncertainty, and enabling manufacturers to employ persons of ordinary care and attention to read, punch, and re-cut their designs or patterns with quickness and ease.