Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1976-03-15
1977-08-30
Scott, Samuel
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
92146, F16H 1904
Patent
active
040446182
ABSTRACT:
A machine drive mechanism between a power unit and an energy absorbing unit, such as a compressor unit. The power unit may be connected to a crosshead carrying a pair of spaced and inwardly facing racks or to a double rack member and the compressor unit may be connected to one end of a piston-like guide and seal member which, in turn, is pivotally connected to one end of the double rack or the pair of spaced racks. The double rack extends between a pair of pinion gears mounted on fixed shafts and operably engaging the spaced racks and the double rack. When the power unit is directly connected to the energy absorbing device, the spaced racks merely serve as counterbalancing means. The power unit may also be connected by a relatively long unpivoted shaft to the energy absorbing unit either directly or through the racks by a connection providing transverse flexing movement between the double rack and the shaft. A yoke may also be provided between two parallel piston rods with a central connection with the guide and a floating connection with said rods to prevent transfer of transverse vibrations of either to the other. These arrangements give better load distribution between the gear teeth and thus greater strength and better wear.
REFERENCES:
patent: 947908 (1910-02-01), Heglar
patent: 1581439 (1926-04-01), Gray
patent: 2034069 (1936-03-01), Walti
patent: 2693758 (1954-11-01), Pierce
patent: 2916205 (1959-12-01), Litz
patent: 3609974 (1971-10-01), Lado
Ratliff, Jr. Wesley S.
Scott Samuel
Staubly Alan M.
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