Programme controlled hydraulic loading crane

Details Programme controlled hydraulic loading crane Programme controlled hydraulic loading crane

1975-10-07

1977-07-26

Makay, Albert J.

Traversing hoists

Overhead

Cable

212 39MS, 214762, 340267C, E02F 332

Patent

active

040377423

ABSTRACT:
In a hydraulically operated loading crane of the kind comprising a rotatable crane post, an inner crane boom pivotally mounted at the upper end of said post, a jib pivotally mounted to said boom, and an extension boom mounted for longitudinal displacement relative to said jib and supporting at its outer end a load hoisting tool, an electronically programmable control system incorporating encoders capable of measuring the relative movements of the crane parts and arranged to store the measured values in a memory, and a comparator means arranged to compare signals representing pre-programmed patterns of movements with the signals received from said encoders so as to effect feeding of the required quantity of pressurized medium to the various hydraulic means to obtain the desired, pre-programmed patterns of movements.

REFERENCES:
patent: 2772411 (1956-11-01), Cooper
patent: 2858070 (1958-10-01), Scharff
patent: 3390794 (1968-07-01), McMullen
patent: 3489294 (1970-01-01), Greb
patent: 3543910 (1970-12-01), Devol
patent: 3661051 (1972-05-01), Dunne
patent: 3826383 (1974-07-01), Richter
patent: 3943343 (1976-03-01), Irie

Affiliated with

Also associated with

Rating

Programme controlled hydraulic loading crane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programme controlled hydraulic loading crane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programme controlled hydraulic loading crane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-721080