OPENTECHNICAL PUBLICATION
OT-2026-000000544

Friction lock bar jack for construction

Published: 2026-09-15T19:03:03.547855Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000544
Categories: Lifting, Positioning & Manipulation > Lift Tables and Positioners

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ABSTRACT

A friction lock bar jack for lifting items including an elongated bar having a
distal end and a proximal end, a lifting mechanism reciprocally slidably
carried by the elongated bar and including a toggle mounting body, an
actuating lever pivotally coupled to the toggle mounting body and movable
between a neutral position and a drive position and a toggle mechanism to
frictional engage the elongated bar and move the toggle mounting body
incrementally toward the distal end with the actuating lever in the drive
position, and freely movable along the elongated bar with the actuating lever
in the neutral position. A locking assembly is received about the elongated
bar and carried by the lifting mechanism to selectively prevent movement of
the lifting mechanism toward the proximal end and allow movement toward the
distal end.

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OpenTechnical publication OT-2026-000000544
Published 2026-09-15T19:03:03.547855Z
https://opentechnical.org/p/OT-2026-000000544