Abstracts of English and colonial patent specifications relating to the preservation of food, etc. : compiled from original documents, or their printed copies, lodged in the Patent Office attached to the Registrar-General's Department, Melbourne / by William Henry Archer.

  • Archer, William Henry, 1825-1909.
Date:
1870
Catalogue details

Licence: Public Domain Mark

Credit: Abstracts of English and colonial patent specifications relating to the preservation of food, etc. : compiled from original documents, or their printed copies, lodged in the Patent Office attached to the Registrar-General's Department, Melbourne / by William Henry Archer. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    The “ fish” or other matters to be preserved are placed in a metallic vessel, which is then deposited in the refrigerating mixture.—[U.K. 1842, January 27. No. 9240.] J. Bridgman. Employs a cooling mixture composed of ice and salt, or of ice, salt, and acids. The brine used for the preserving of the meat is passed through this mixture by means of pipes, as is also the air admitted into the preserving chamber.—fU.K. 18.58, May 6. No. 1011.] H. C. Ash. Conveys the necessary agitation to freezing mixtures by means of a loosely fitting perforated piston.—[U.K. 1860, July 25. No. 1804.] G. Burnard and L. Koppel. Preserve milk and cream for trans- port by means of a peculiarly constructed can and the use of a mixture of sal-ammoniac and nitre as a cooling agent.—[U.K. 1866, April 28. No. 1198.] W. G. Praagst. “ Preserves fowl, fish, meat, and other animal food” by congealing by means of cold, covering with a coat of ice, and subse- quently packing the substances in suitable non-conducting packages. The cold is stated to be produced artificially, but by what means is not specified.—[Viet. 1866, September 15. No. -§-?-§-.] J. Whitford. Ice-making apparatus is constructed with an outer and inner vessel, the latter of which may be rolled to and fro. Water is placed in the interior vessel and a freezing mixture between the two, or vice versa.—[U.K. 1867, July 8. No. 1989.] 4 b. Freezing by alternate compression and expansion of air or gases. B. G. Sloper’s invention, of which Fig II. is a plan, may be thus described :—“ A is an air-pump,” with stuffing-box B, and piston-rod C, resting on the bed-plate D D. “FF are two exhaust-valves opening “outwards. G G, HH1, II1 are six valve-chests containing slide- “ valves worked by the valve-rods J. The valves G G have side “ openings at n w1, allowing the passage of the external air into their “ interior. K K are air-chambers of much smaller capacity than that “ of the air-pump, opening at their ends into the valve-chests G G1, “IIII1. The valve-chests II1 have air passages from their interior “ into the interior of the air-pump. L L1 are two ice-chests, the cover “ of L being removed to show the interior. MM1 are pipes of com- “ munication connecting the valve-chests II H1 with the interior of the “ice-chests. NN1 are pipes of communication connecting the valve- “ chests 111 with the interior of the ice-chests.” These ice-chests are divided by partitions, as seen by the interior view of L, so that the expanding air is obliged to sweep round the ice-bags R R. “ Both the “ chests are made air-tight by their covers, when the ice is being made, “ and are surrounded by mattresses stuffed with a non-conducting “ material. The bags R R are made of American canvas, open at the b 2