jacking device

jacking device

1. A device used to raise a vertical slipform.
2.A device used to stress the tendons in prestressed concrete.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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The rubber bits used on snowplows in western Washington get beat up when they are stored with the bit on the ground, so Jantz installed a simple jacking device and four small stands mounted on the plow, two supporting the moldboard and two back near the attachment points.