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Invention. Robert Dahlander. Robert Dahlander, a Swedish engineer working for ASEA, [ 3] discovered that switching the poles in a motor led to a reduction in the speed of the motor. In 1897 he invented an electrical configuration to switch between poles in a motor for which he was granted a patent along with his co-worker Karl Arvid Lindström.
1964–1973. Chronology. Predecessor. Borg-Warner T-10. Dagenham 4-speed. A Toploader transmission is a manually shifted gearbox design built in three-speed and four-speed configurations, introduced in 1963 by the Ford Motor Company to replace the BorgWarner T-10. It was used in most Fords and Mercurys from 1964 until 1973, as well as in some ...
2-speed automatic. The Powerglide is a two-speed automatic transmission designed by General Motors. It was available primarily on Chevrolet from January 1950 [ 1] through 1973, although some Pontiac models also used this automatic transmission after the fire at the Hydra-Matic factory in 1953. Powerglides were used extensively on Pontiacs ...
OC-48 is also used as a transmission speed for tributaries from OC-192 nodes in order to optimize card slot utilization where lower speed deployments are used. Slower cards that drop to OC-12, OC-3 or STS-1 speeds are more commonly found on OC-48 terminals, where use of these cards on an OC-192 terminal would not allow for full use of the ...
Dead man's switch. A pedal acting as a dead man's switch in a bucket lift truck. A dead man's switch is a switch that is designed to be activated or deactivated if the human operator becomes incapacitated, such as through death, loss of consciousness, or being bodily removed from control. Originally applied to switches on a vehicle or machine ...
The primary tool for graphically displaying information in the study traffic flow is the fundamental diagram. Fundamental diagrams consist of three different graphs: flow-density, speed-flow, and speed-density. The graphs are two dimensional graphs. All the graphs are related by the equation “flow = speed * density”; this equation is the ...
Similarly, with the lever in High position, the car would start in underdrive high, and at any speed above 13 mph (21 km/h), the driver would lift his foot and the car would “shift” into direct drive. This configuration had the effect of providing 4 gear ratios: Underdrive Low, 3.57/1, Low 2.04/1, Underdrive High, 1.75/1, High, 1/1.
Time-slot interchange. A time-slot interchange (TSI) switch is a network switch that stores data in RAM in one sequence, and reads it out in a different sequence. It uses RAM, a small routing memory and a counter. Like any switch, it has input and output ports. The RAM stores the packets or other data that arrive via its input terminal.