Under-the-roof loader

Details Under-the-roof loader Under-the-roof loader

1978-12-04

1981-02-17

Marbert, James B.

Handling: hand and hoist-line implements

Hoistline attached load supporting frame

B66C 100

Patent

active

042510988

ABSTRACT:
An Under-the-roof loader is an elongated boom which is connected to the crane lift line through its fulcrum axis and it is balanced in respect to this axis. The purely mechanical automatical balancing system, which actuates by boom inclination during initial period of lifting the load, moves the counterweight in opposite from the loaddirection until it balances the lifting load. At this moment inclination of the boom stops and the crane starts to lift the load simultaneously with all parts of the boom including counterweight. The railguides for counterweight are so curved that the gravity force of counterweight is at all time normal to the curve while the counterweight moves along the curved part of the boom proportionally to the angle of boom inclination. The mechanism transfering the boom inclination in the reciprocating motion of the counterweight consists of two levers.

REFERENCES:
patent: 3762755 (1973-10-01), Saether

Affiliated with

Also associated with

Rating

Under-the-roof loader does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Under-the-roof loader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Under-the-roof loader will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2259203