Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1985-10-21
1988-01-12
Spar, Robert J.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
254122, 403 53, 403 65, B66B 1104
Patent
active
047185198
ABSTRACT:
A high lift scissors jack has three sets of scissor members. Each set is joined to the adjacent sets at the corners using connectors which maintain the base and the platform parallel as the structure extends and retracts. The connectors have angularly spaced pivots and the pivots have shoulders which provide lateral support to the ends of the lever arms. The scissor sets are joined to a support base and a platform by similar transition assemblies. The transition assemblies each include a pivoted strut for each set of scissor members. The strut has its base pivotally mounted on the support base or platform and its opposite vertex connected to the end of the scissor set. Extension and retraction are performed by rotating the support base struts about their base pivots.
REFERENCES:
patent: 32265 (1861-05-01), Morse
patent: 80445 (1868-07-01), Brand
patent: 292995 (1884-02-01), Davis
patent: 732418 (1903-06-01), King
patent: 797077 (1905-08-01), Shaw
patent: 859596 (1907-07-01), Camp
patent: 862639 (1907-08-01), Jefferis
patent: 1080375 (1913-12-01), Senderling
patent: 1498813 (1924-06-01), Sankela et al.
patent: 1511679 (1922-06-01), Schwarz
patent: 2625443 (1953-01-01), Sensenbaugh
patent: 2725578 (1955-12-01), Keller
patent: 3672104 (1972-06-01), Luckey
patent: 3712488 (1973-01-01), Steves
patent: 3795289 (1974-03-01), Laforest
patent: 4477201 (1984-10-01), Yoshiyuji
Alexander Jay I.
Spar Robert J.
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