(p. 301) By the 1910s, electric motors had started their inevitable spread into homes. They had been domesticated. Unlike a steam engine, they did not smoke or belch or drool. Just a tidy, steady whirr from a five-pound (p. 302) hunk. As in factories, these single “home motors” were designed to drive all the machines in one home. The 1916 Hamilton Beach “Home Motor” had a six-speed rheostat and ran on 110 volts. Designer Donald Norman points out a page from the 1918 Sears, Roebuck and Co. catalog advertising the Home Motor for $8.75 (which is equivalent to about $100 these days). This handy motor would spin your sewing machine. You could also plug it into the Churn and Mixer Attachment (“for which you will find many uses”) and the Buffer and Grinder Attachments (“will be found very useful in many ways around the home”). The Fan Attachment “can be quickly attached to Home Motor,” as well as the Beater Attachment to whip cream and beat eggs.
Kelly, Kevin. What Technology Wants. New York: Viking Adult, 2010.
(Note: the quote above omits the copy of a 1918 electric motor ad that appeared in the middle of the original paragraph.)