Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1986-10-10
1988-02-09
Braun, Leslie
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
74199, 74212, 74841, F16H 2920, F16H 1508
Patent
active
047234555
ABSTRACT:
An electric motor changes the output speed of a mechanically-adjustable variable speed drive apparatus by controlled bi-directional rotation of a shifting screw engaged with a centerpiece assembly. In general, the dry traction apparatus may be either of the single disk or double disk type (including modifications thereof). The motor drive shaft is co-axially aligned and coupled with the shifting screw, and includes a particular thrust bearing arrangement which accepts axial thrust in either direction generated by rotational operation of such motor. A limit switch mechanism, including a spring-loaded limit switch actuation element, also automatically controls motor operation by responding to controlled shifting of the centerpiece element. A protective shear pin and a torque arm arrangement further facilitate co-axial coupling of the motor with the shifting screw. An output friction ring of the drive apparatus may optionally be outfitted with a tachometer ring to facilitate monitoring of the output rotational speed.
REFERENCES:
patent: 1590570 (1926-06-01), Flack et al.
patent: 2806690 (1957-09-01), Miles
patent: 3220718 (1965-11-01), Wikkerink
patent: 3221118 (1965-11-01), Hoover
patent: 3418863 (1968-12-01), Landau
patent: 3523599 (1970-08-01), Denkowski
patent: 3528303 (1970-09-01), Haller
patent: 3792619 (1974-02-01), Cannon et al.
patent: 4137432 (1979-01-01), Kamm
patent: 4370139 (1983-01-01), Zigler
patent: 4384863 (1983-05-01), Huff et al.
Disctrac Technical Guide Brochure, Reliance Electric .COPYRGT.1985, and Manufacturer's Drawings 2.3 and 5.7 related thereto.
Anchell Scott J.
Braun Leslie
Reliance Electric Company
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