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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
a hoisting crane whose load-lifting mechanism is a clamshell-like grapple. The grab crane is widely used for loading and unloading at ports, the depots of industrial establishments, construction sites, railroad stations, and elsewhere.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
1. A machine for lifting or lowering a load and moving it horizontally, in which the hoisting mechanism is an integral part of the machine; classified by mounting, by boom configuration, and by lifting capacity.
2.See fireplace crane.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.