Four tray, ice maker evaporator with low-side float, using an early form of modular construction, in tinned copper tube and brake formed copper sheet. Cooling unit with gleaming porcelain tray pulls, for small commercial cabinet refrigerator, similar to #022, #023 Frigidaire, 1926.<\/p>\n\n\n\n
Features:<\/strong> Technical Significance:<\/strong> Industrial Significance:<\/strong> Four tray, ice maker evaporator with low-side float, using an early form of modular construction, in tinned copper tube and brake formed copper sheet. Cooling unit with gleaming porcelain tray pulls, for small commercial cabinet refrigerator, similar to #022, #023 Frigidaire, 1926.<\/p>","protected":false},"author":1,"featured_media":20631,"comment_status":"closed","ping_status":"closed","template":"","cpt_portfolio_group":[97,199],"class_list":["post-20630","cpt_portfolio","type-cpt_portfolio","status-publish","has-post-thumbnail","hentry","cpt_portfolio_group-commercial","cpt_portfolio_group-refrigeration"],"yoast_head":"\n
The early form of modular construction employed allowed the manufacturer to \u201cgrow\u201d their evaporators using standard off the shelf components, with relatively predictable performance.<\/p>\n\n\n\n
See background notes on technological significance of early mechanical cooling units (evaporator), THOC-HVACR inventory item 011.This specimen is representative of the proliferation of models and sizes of low-side float operated evaporators of the period, largely by Kelvinator and Figidaire, as they attempted to stretch this ice making technology to its limit. Dinosaur like, costly, complicated and trouble prone by comparison with the evaporator technologies that would shortly follow, this genre would largely disappear from manufacture\u2019s catalogues by the early 1930\u2019s, although would be operational in the field until after WWII \u2013 requiring repair shops to rebuild an calibrate floats and needle seats.
To contrast the weight, size, seeming complexity, as well as materials and manufacturing costs with the technology reflected in inventory items 015 to 021 is instructive. The classic process of progressive simplification in technological innovation and change is well exemplified.<\/p>\n\n\n\n
With complex, demanding construction, the evaporator would make many demands on manufacturing and materials engineering in the early years of the 20th century.<\/p>","protected":false},"excerpt":{"rendered":"