Overhead crane including grapple means

Details Overhead crane including grapple means Overhead crane including grapple means

1975-01-27

1976-10-26

Werner, Frank E.

Traversing hoists

Overhead

Cable

212125, 214653, 214655, B66C 1700

Patent

active

039879054

ABSTRACT:
A grapple assembly to be used in conjunction with an overhead crane providing means for picking up and transporting a plurality of blocks of heavy material simultaneously. The grapple assembly includes an elongated horizontal frame member suspended from an overhead crane, the frame member supporting a plurality of vertically extending opposed pairs of pivotable clamping members. The clamping members are each pivotably connected to the sides of the frame member and connected to a toggle linkage drive means such that a downwardly extending portion of each pair of the clamping members can firmly grip a block of material. The toggle linkage drive means are each secured to a central drive shaft which is, in turn, connected to a hydraulically driven rack and pinion. The toggle linkage drive means are also provided with spring biasing means to lock the clamping members in clamping position such that the blocks will not be released during transfer even if the hydraulic power is cut off.

REFERENCES:
patent: 1295163 (1919-02-01), Henricks
patent: 1764623 (1930-06-01), Grondahl
patent: 2088519 (1937-07-01), Hershey
patent: 2323810 (1943-07-01), Fontaine
patent: 2360740 (1944-10-01), Sturdy
patent: 2611498 (1952-09-01), Broersma
patent: 2822094 (1958-02-01), Greer
patent: 3247974 (1966-04-01), Dechantsreiter
patent: 3690715 (1972-09-01), Vanlingen
patent: 3738500 (1973-06-01), Coleman et al.

Affiliated with

Also associated with

Rating

Overhead crane including grapple means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overhead crane including grapple means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overhead crane including grapple means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-180459