Vehicle and boom assembly

Details Vehicle and boom assembly Vehicle and boom assembly

1978-08-04

1980-09-09

Sheridan, Robert G.

Supports

Brackets

Adjustable

239166, 248564, A47F 500

Patent

active

042213533

ABSTRACT:
A boom assembly mountable on a vehicle is provided in which the boom is supported at a lower or working position by a first spring. A manually applied force selectively applies a moment to partially rotate a toggle device and to partially lift the boom to an upper or clearance position. The partial rotation of the toggle device activates a second spring and the boom is raised to a second position by the combined force of the manually applied force and the force of the second spring.

REFERENCES:
patent: 3395503 (1968-08-01), Greenburg et al.
patent: 3554478 (1971-01-01), Sunderman

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