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Gibson appliance advertisement, 1948. Gibson was founded by Joshua Hall in Belding, Michigan , in 1877 as the Belding-Hall Company selling cabinets that housed blocks of ice ( ice-boxes ). The area around Belding, Michigan, had a skilled workforce of Danish craftsmen and a good supply of hardwoods including ash .
An Automatic Oil Muffle Furnace, circa 1910. Petroleum is contained in tank A, and is kept under pressure by pumping at intervals with the wooden handle, so that when the valve B is opened, the oil is vaporized by passing through a heating coil at the furnace entrance, and when ignited burns fiercely as a gas flame.
Pages in category "Gas masks" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. * Gas mask; B. Black Veil ...
High efficiency condensing gas furnaces typically achieve between 90% and 98% AFUE. [3] A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as compared to a mid-efficiency forced-air or forced-draft furnace, is the ...
An industrial chamber furnace, used to heat steel billets for open-die forging. An industrial furnace, also known as a direct heater or a direct fired heater, is a device used to provide heat for an industrial process, typically higher than 400 degrees Celsius. [1]
Operating a vacuum heat treating furnace, c. 1959–1962. A vacuum furnace is a type of furnace in which the product in the furnace is surrounded by a vacuum during processing. The absence of air or other gases prevents oxidation, heat loss from the product through convection, and removes a source of contamination.
The M40 field protective mask features three voicemitters, one on either the right or left side, and one in front. A voicecom adapter may be placed over the front voicemitter to amplify the user's voice. The mask can be adjusted in the field to accept the filtering canister on either side, so that a weapon may be shouldered.
The General Service Respirator (GSR) is a military gas mask designed to replace the previous S10 respirator for the British Armed Forces.It was designed by the Defence Science and Technology Laboratory and Scott Safety in collaboration with the Ministry of Defence, and was manufactured by Scott Safety.