| 摘要 |
An automobile jack that comprises a hydraulic system. The jack includes a lockout button and a release mechanism comprised of a variable rate, spring-loaded trigger release mechanism which is located on the grip handle. Moving the jack handle upward and downward causes the hydraulic jack arm to raise and by disengaging the lock out button, the release mechanism allows the hydraulic jack arm to be moved downward. Once the desired height is reached, the lockout button is engaged. By engaging the lockout button, the jack arm is prevented from being moved downward. When it is time to maneuver the jack again, the lockout button has to be disengaged to allow for movement downward.
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