1851 Great Exhibition: Official Catalogue: Class VI.: Alfred Barlow
From Graces Guide
82. BARLOW, ALFRED, 26 Bread Street — Inventor.
Patent double-action Jacquard loom, for the expeditious weaving of figured goods by the use of counterpoised griffs and apparatus for simultaneously raising and lowering different portions of the suspending wires; applying two barrels or cylinders and two sets of cards; and constructing hooked wires for giving motion to the harness or heddles.—Patented in Great Britain, Ireland, the colonies, France, Belgium, Prussia, and Austria.
The figure represents the upper part of the loom, showing its peculiar principles.