automatic washers and through 1963 for coin-operated commercial washers for self-service laundromats. The Pulsamatic mechanism, unique in that it pulsated 630 times per minute, was introduced in 1955 for the lower-end models. This became the foundation for the Multimatic, introduced for the 1959 model year. The Multimatic lasted through 1964, as the Rollermatic was brought out for the 1965 lineup. The Rollermatic was unique in that instead of using an oil-filled gearcase, metal and urethane rollers transferred the power within the mechanism. This underwent a slight revision in 1970 for the new eighteen-pound capacity 1-18, which kept the same basic mechanism but differed in that it was belt-driven off of the motor and added a recirculating pump. Besides the unique action, another notable feature of these older washers was the final, high-speed spin cycle (nicknamed "Rapidry"), 1140 revolutions per minute in the Unimatic, 850 in the Multimatic, and 1010 in the high-end Rollermatic models. When Frigidaire was acquired by White Consolidated Industries in 1979, it abandoned the General Motors design in favor of the Westinghouse-produced top-loading design, as White-Westinghouse was already among its house brands by this time. Refrigerators Frigidaire also produces a wide variety of refrigerators and freezers for the consumer market. Their model line-up includes refrigerator freezer units of several different types. The selection they offer includes traditional Top Freezer models, as well as more modern Side-By-Side and French Door styles. In 2016, Frigidaire partnered with Ryder and Embark, an autonomous trucking firm, to deliver refrigerators from Texas to California. Level 2 autonomous trucks are used. They have a driver behind the wheel at all times. The reason for experimenting with autonomous vehicles is a looming shortage of drivers. In 2015, the American Trucking Association predicted that there would be a shortage of 175,000 drivers by 2024. Air conditioners In addition to manufacturing room air conditioners, Frigidaire also provided the factory air conditioning systems for General Motors (GM) automobiles. From the 1950s through the 1970s, these units developed a reputation for providing powerful air conditioning systems on virtually all GM cars and trucks from the largest Cadillacs to the small Chevrolet Vega. GM also sold Frigidaire auto air conditioning compressors to British Leyland for Jaguar and to Rolls-Royce for Rolls-Royce and Bentley branded cars. Manufacturing A new cooktop manufacturing facility opened in the Frank C. Pidgeon Industrial park, southwest of Memphis. The facility is built to LEED certification