| 摘要 |
A portable boom support adapted to be mounted on a vehicle which can be adjusted to the contour of the ground and provides the total support for an aerial boom or similar device during its operation. The boom support includes a frame which is attached to the transport vehicle frame and a turntable support pivotally attached to the frame. The turntable support is shiftable about its pivot point by a brace which is adjustable in length and connected at one end to the turntable support and at its other end to the frame. Lateral stability is provided by adjustable outriggers connected to the frame at its ends.
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