1851 Great Exhibition: Official Catalogue: Class VI.: Walter Blackmore
428. BLACKMORE, WALTER, Wandsworth — Proprietor.
Model (half size) of an improved bolting-mill, showing the mode of dressing flour through patent bolting cloths, without seams, with gutta-percha flaps revolving on the outside of the cloth, for clearing the cloth while dressing. Improved by James Ayton, of Norwich.