Electric Motors – Single Phase, Repulsion Induction and Repulsion Motors
An early 20th century, 25 cycle, repulsion induction motor with historic innovative, first generation, vibration isolating motor mounts, a significant step in helping to reduce the noise level in the canadian kitchen, resulting from the introduction of motorized machinery, built in Canada for Kelvinator’s cabinet refrigerators introduced in the early 1930’s, Wagner, Circa 1932.
Features:
– Early 4 point, innovative, vibration isolating motor mounts
– With original shop tag, T.H. Oliver, Refrigeration and Electric Service, marked “salvage …..”
Technical Significance:
– An artifact of Canadian history telling many stories of life and times, Canadian technological innovation, dissemination and popularization of technology for the Canadian home:
1. An early Canadian made FHP motor for an early Canadian refrigerator manufacturer, marking the optimism of the times, the capital investment made, in spite of a period of marked economic depression
2. A pioneering step in quieting the Canadian kitchen. The 4 point, rubber vibration insulating base would be an historic step of significant proportion in reducing noise in the kitchen, which followed the introduction of electro-motive powered machinery into the home. It would be the first step in an evolutionary sequence which would result, in the complete disappearance of the noisy, hazards, FHP motor, embedding it within the refrigeration system itself, the hermetic refrigeration motor compressor. [see examples classification code 4.01] [see also Note 1]
3. Part of the historic movement to unitize and package the mechanical refrigeration systems, to be marketed to the Canadian home owner – with all its piping, motor, compressor, valving and so forth. Manufactures understood that the popular acceptance of the technology by homeowners, would increasingly depend on making this mechanical wonder not only quieter, but more reliable and repairable, independent of local highly skilled tradesman. The packaged, factory ready refrigeration replacement system was seen as the answer, although not altogether successful in the earliest attempts of which this motor was part – See Reference 12.
– Repulsion induction motor technology was above all a marvel of its time, a technology born of both science and the consumer market place, a classic formula for the innovation and diffusion of popular technology, throughout the balance of the 20th century and on in to the 21st. Scientifically, the work of Faraday and many others laid much of the theoretical foundations for electromagnetic devices, the marvel of the early 20th century [much in the same way digital devices became the marvel of the early years of the 21st]. The wonders made possible by alternating current energised, rotating magnetic fields and the electric and magnetic circuitry that made them possible would soon be exploited by those interested in their application in applied electro-motive technology, including Steinnmetz and others. [See References especially #I, 2, and 5]
– See also ID# 296
Industrial Significance:
– See also notes ID# 296