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Cascaded-pawl single-revolution clutches superseded wrap-spring single-revolution clutches in page printers, such as teleprinters, including the Teletype Model 28 and its successors, using the same design principles. IBM Selectric typewriters also used them. These are typically disc-shaped assemblies mounted on the driven shaft.
Since the clutches started becoming popular over 60 years ago, the variety of applications and brake and clutch designs has increased dramatically, but the basic operation remains the same. This article is about the working principles of single face friction plate clutches and brakes.
Hele-Shaw clutch, sectioned A single pair of plates of the Hele Shaw clutch Section through a stack of plates . The Hele-Shaw clutch was an early form of multi-plate wet clutch, in use around 1900. It was named after its inventor, Professor Henry Selby Hele-Shaw, who was noted for his work in viscosity and flows through small gaps between ...
Alvis manufactured the four-cylinder 1,842 cc pushrod overhead valve engine [6] which was similar to the engine of the Alvis Firebird but was, in fact, a new design. Its 63 hp (47 kW) was enough to propel the car to a top speed of about 80 mph (130 km/h). [ 6 ]
When the engine is running and the clutch is engaged (i.e., clutch pedal up), the flywheel spins the clutch pressure plate and hence the transmission. The design of most manual transmissions for cars is that gear ratios are selected by locking selected gear pairs to the output shaft inside the transmission.
The dry single-plate clutch has a diameter of 412 mm and features torsional rubber damping. [4] Early Kontio models were fitted with a five-speed main gearbox [18] while the heavy-duty Jyry's came with a six speed gearbox on which the sixth gear was an overdrive. There is no synchromesh, but the gear-cog tooth ends were bevelled in order to ...
Most SC 12/50s were built on the longer chassis, which would be standard for the 12/50 until the end of production. Front wheel brakes were offered as an option on this model: a front axle of new design could be supplied with or without brakes. Power transmission was via a roller-bearing prop shaft of new design.
A chainsaw's clutch. The chain wraps around a sprocket behind the clutch that turns with the outer drum. The input of the clutch is connected to the engine crankshaft while the output may drive a shaft, chain, or belt. As engine revolutions per minute increase, weighted arms in the clutch swing outward and force the clutch to engage. The most ...