Vacuum apparatus; Pontifex and Wood. Photographer: Ferrier, Claude-Marie
Scope & Content:
Genre: Industrial Photography Close view of the vacuum apparatus used in the production of sugar: 'The English machine of Messrs. Pontifex and Wood (602) is of great manufacturing power; and its enormous dome, formed from a single piece of copper, is a very wonderful specimen of the coppersmith...
Genre: Industrial Photography View of the large copper vacuum apparatus: 'The machine of Mr. Heckmann (Prussia, 52), although not equal in magnitude, nor perhaps in workmanship to the two already mentioned, must be regarded as a contribution of first-rate merit.' (p. 432).