1851 Great Exhibition: Official Catalogue: Class IX.: McCartney and Drummond
248. McCARTNEY and DRUMMOND, Curnnock — Designers and Manufacturers.
Thrashing-machine, in cast-iron framing, with riddles, fans, and elevators. The riddle is placed under the machine. The grain is raised by elevators to the fans placed on the top of the machine for dressing the grain. It has an improvement for shifting the rollers and drum-cover, by a hand-wheel and levers in front, to suit the different kinds of grain.
Improved construction of horse-wheel, and other parts of gearing, for safety to machinery from a sudden start of the horses; also for preventing the drawing shafts from coming on the horse, when stopped, by the velocity of inside machinery.
A peg-hummeller, for thrashing barley.
The fans, though placed on the top of the machine, can be placed in the granary above, or under it, when more convenient.
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