Furnace charger apparatus
AssigneePRMG, Inc.
InventorPeter Petrachkoff
Life of this patent
Estimating the term…
Abstract
For use with a reheating furnace for reheating blooms for rolling, in which for charging the furnace with blooms a series of longitudinal moveable arms are provided, for each arm a arm supporting and lifting mechanism comprising two pair of freely rotatable hold down--counterbalancing guide rollers for engaging a tract provided on the arm, a freely rotatable support roller for supporting the arm during their movements, and a piston cylinder assembly for the arm connected to frames of the support roller for raising and lower the roller and hence the arm.
Claims6
In combination with a workpiece handling apparatus having a horizontal extending arm and a workpiece carrying means at its one end for effecting vertical and horizontal manipulations of the workpiece,
- said arm having opposed horizontal relatively friction free contacting surfaces comprising a lower contacting support surface for said arm and two upper surfaces serving as restraining surfaces for said arm,
- a support and lifting means for said arm, including:
- first roller means for engaging said lower arm contacting surface in a manner to support said arm while permitting relative movement therebetween,
- second roller means comprising two cooperative pairs of spaced anti-friction rollers, including means for mounting each cooperative pair of rollers on an opposite side of said arm with respect to said two upper contacting surfaces, in a manner that said two upper contacting surfaces move beneath the cooperative pairs of rollers and contact their adjacent surfaces to restrict vertical relative movement between said arm and said second roller means,
- means for pivotally mounting said cooperative pairs of rollers in a manner that said pairs move as a unit whereby both rollers of each pair are positionable to accomplish said restricting effect on said arm,
- power means connected to said arm and said support means for moving said arm and support means for effecting said horizontal and vertical manipulations, respectively.
In combination with a workpiece handling apparatus having at least two horizontal extending arms and a workpiece carrying means at their one ends for effecting vertical and horizontal manipulations of the workpiece,
- a support and lifting mechanism for each said arm including arm supporting means having a relatively friction free arm supporting surface,
- arm restraining means for each arm arranged to contact said arms to assist in guiding their movements with respect to a said associated supporting surface,
- first power means connected to each said supporting means for selectively raising and lowering said supporting means and hence said arms for effecting said vertical manipulation,
- synchronizing shaft means for interconnecting said separate power means, and
- means for operatively connecting said shaft means to each said support and lifting mechanism of said arms, whereby said arms are raised and lowered in unison on operation of said first power means, and
- second power means connected to said arms for selectively moving said arms for effecting said horizontal manipulation.
Dependencies are inferred from the claim text.