Electro-hydraulic rectangular grapple for railcars

Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device

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294106, B66C 316

Patent

active

056202229

ABSTRACT:
The present invention provides a novel grapple type of device for removing bulky materials from containers such as rail cars. The invention conforms to the general shape of rail cars and is able to enclose the bulky material from all sides. Therefore a grapple is provided comprising a housing which has a side and an end, with the end being shorter in length than the side. The grapple also has an attachment device positioned on the housing for attaching a tension member to the housing. A plurality of tines are pivotally attached to the housing along the side and at least one fine is pivotally attached to the housing along the end. There are further a plurality of fine actuating devices, each of the actuating devices having a first end attached to the housing and a second end attached to one of the tines. Additionally, the grapple contains a fluid supply mechanism operatively attached to the tine actuating devices, the fluid supply mechanism being positioned on the grapple.

REFERENCES:
patent: 2652280 (1953-09-01), Billings
patent: 3439818 (1969-04-01), O'Neil
patent: 3589766 (1971-06-01), Bormioli
patent: 3799602 (1974-03-01), Laws et al.
patent: 3877743 (1975-04-01), Johnson
patent: 3881620 (1975-05-01), Walker
patent: 3987905 (1976-10-01), Dechantsreiter
patent: 4023848 (1977-05-01), Bennett
patent: 4057278 (1977-11-01), Gotzen
patent: 4502723 (1985-03-01), Kuromoto
patent: 4525121 (1985-06-01), Cawley
patent: 5330242 (1994-07-01), Lucky, Sr.
6-Tine Scrap Grapple Electro-Hydraulic Design, Preliminary Proposal drawing Apr. 12, 1993.

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