Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Patent
1983-02-01
1984-11-13
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
414 11, B60P 100
Patent
active
044821301
ABSTRACT:
A vertical lifting device is provided to enable a single operator to lift and place materials, particularly where materials such as kitchen cabinets are to be installed along vertical walls or in vertical corners. Telescoping vertical columns enable a gross height to be pre-set and a pivoting mechanism produces both vertical and lateral positioning for final placement by one person. The pivoting mechanism may be frictionally locked at the desired placement position to free the single operator to thereafter secure the material being installed. A variety of support platform designs may be provided compatible with the installation surfaces. Pivoting supports are provided to enable folding of the device for compact transportation and storage.
REFERENCES:
patent: 270012 (1883-01-01), Burruss
patent: 2358865 (1944-09-01), McPherson
patent: 2504291 (1950-04-01), Alderfer
patent: 3930645 (1976-01-01), Anderson
patent: 4300751 (1981-11-01), Delaney
patent: 4340205 (1982-07-01), Leezer
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