Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1974-04-26
1976-03-16
Scott, Samuel
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
7423001, 742306, 56 116, 74226, F16H 710, F16H 714, A01D 6908
Patent
active
039437850
ABSTRACT:
A drive system comprising a prime mover such as an engine providing a drive shaft, a shell supported by the shaft for rotation relative to the shaft, a split groove pulley mounted on the shaft, the pulley including one flange secured to the shaft for rotation therewith and a complementary flange connected to the shell for rotation therewith, the flanges defining a space axially therebetween, an adjustably movable take-up pulley having a belt-tightening position and a belt-loosening position, and a belt trained about the pulleys. When the belt is tightened by the take-up pulley, the shell and complementary flange rotate with the shaft and the said one flange, i.e., the belt provides a driving connection between the two flanges. When the belt is loosened, the driving connection is broken such that the one flange and shaft rotate relative to the complementary flange and the shell. The said one flange provides means for drawing air into the space between the flanges for cooling the belt when the shaft is driven and for providing air flow which positions the belt when it is loosened away from the rotating flange.
REFERENCES:
patent: 555924 (1896-03-01), Brigel
patent: 1385396 (1921-07-01), Rayburn
patent: 2057435 (1936-10-01), Kimble
patent: 2707402 (1955-05-01), Blair
patent: 2746587 (1956-05-01), Spase
patent: 2957561 (1960-10-01), Musgrave
patent: 2960810 (1960-11-01), Musgrave
patent: 3015237 (1962-01-01), Musgrave
Burke A. Russell
Carlisle Corporation
Scott Samuel
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