1851 Great Exhibition: Official Catalogue: Class IX.: Robert Maynard
109. MAYNARD, ROBERT, Whittlesford, near Cambridge — Inventor and Manufacturer.
Universal oil-cake crusher; exhibited for new arrangement of gear, combining strength and simplicity of working parts. Recent improvements have reduced the friction, and rendered the machine better adapted for preparing the cake for feeding purposes.
Engine for drawing clover and trefoil seeds, invented by Mr. Constable, of Cambridge, and manufactured by the exhibitor. This machine is for separating the husk or hull from the seed, which it does at the rate of about two or three bushels of clover seed, and about double that quantity of trefoil seed, per hour, when worked by four horses.
Weighing-machine, for ascertaining the weight of any article from a quarter of a pound up to twenty stone.