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TM 38-400/NAVSUP PUB 572/AFMAN 23-210 MCO 4450.14/DLAM 4145.12
Figure 4-24. Jib crane.
(2) Gantry Crane. A gantry crane consists of
(b) Mast supported-The jib is mounted
a hoisting device that rides on a horizontal beam
on a mast which is supported on top and bottom
connected to legs with wheels attached to the bottom.
supports and pivots.
Usually the wheels ride on floor mounted tracks.
(c) Bracket-The jib is attached to the
Variations are possible when one of the legs is replaced
wall or column by brackets.
by a runway attached to the building or other fixed
(d) Walking-The jib is mounted on
object.  Gantry cranes can be used either indoors or
heavy undercarriages which may move back and forth
outdoors and can be pendant or radio controlled.
on rails in the floor or floor and ceiling.
Applications for the gantry crane are similar to the
(e) Interlocking-A
bracket
crane
bridge crane; however, gantry cranes are more often
designed to extend the travel of a monorail hoist by
used outdoors be-' cause of the support legs (fig 4-25).
connecting the ends of adjacent jibs.
4-15

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