Hydraulic crane mechanism operable to provide enlarged parallel

Details Hydraulic crane mechanism operable to provide enlarged parallel Hydraulic crane mechanism operable to provide enlarged parallel

1974-06-10

1976-12-07

Spar, Robert J.

Traversing hoists

Overhead

Cable

212 8A, 212 28, 214DIG10, 214147T, 214 1CM, 212 58R, B25J 300, B66C 2300

Patent

active

039957462

ABSTRACT:
A hydraulic crane includes a pair of boom arms and a pair of swing arms pivotally connected in association with a pair of auxiliary arms and arranged in the form of a pantograph. Substantially horizontal or vertical displacement of one of the pivotal connections by hydraulic piston devices will effect correspondingly substantially horizontal and vertical displacement respectively, but to a larger degree, of a swing means from which a cargo load may be suspended or to which an excavating shovel or the like may be attached.

REFERENCES:
patent: 3262593 (1966-07-01), Hainer
patent: 3630389 (1971-12-01), Schmidt et al.
patent: 3703968 (1972-11-01), Ulrich et al.

Affiliated with

Also associated with

Rating

Hydraulic crane mechanism operable to provide enlarged parallel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic crane mechanism operable to provide enlarged parallel , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic crane mechanism operable to provide enlarged parallel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-374278