Machine element or mechanism – Mechanical movements – Rotary to gyratory
Patent
1984-04-06
1986-04-08
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Rotary to gyratory
366128, B06B 116, F16H 3310
Patent
active
045804567
ABSTRACT:
On the rotary output shaft of a variable-speed electric motor, there is fixed a sector-shaped weight. On the weight body, diametrically opposite its principal mass there is provided a radial projection provided with a radially extending cavity in which there is slidingly received at the radially inner end a weight. A plunger is pressed by a spring against the slidable weight and projects radially outwardly of the cavity. As the motor output shaft rotates more quickly, the slidable weight slides radially outwards, resiliently compressing the spring and extending the plunger. As the motor output shaft is slowed in rotation speed, the spring recovers, withdrawing the plunger and pushing the sliding weight back towards the shaft. In an elaboration, the plunger is provided outside the cavity with a device for adjustably pre-compressing the spring by pulling out the plunger by a variable amount.
REFERENCES:
patent: 948047 (1910-02-01), Fraser
patent: 1207847 (1916-12-01), Brantingham
patent: 2160051 (1939-05-01), Ainsworth
patent: 2839937 (1958-06-01), Calfee
patent: 2989869 (1961-06-01), Hanggi
patent: 3606796 (1971-09-01), Pappers
patent: 3822604 (1974-07-01), Grimmer
patent: 4367054 (1983-01-01), Salani et al.
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