Concrete pipe manufacturing machinery and methods
AssigneeInternational Pipe Machinery Corporation
InventorsThomas D. Grau, Byron M. Hilts
Life of this patent
Estimating the term…
Abstract
A concrete pipe making machine having a packerhead consisting of a rollerhead and a longbottom in which the rollerhead and longbottom are quickly assembleable and disassembleable as a unit from the packerhead drive means with one connector and brought into final adjustment off the machine, said drive means providing no obstruction to the flow of wet concrete toward the compaction area, the speed ratios between the rollerhead and longbottom being infinitely variable, and easily replaceable protective wear rings for precluding erosive deformation of the permanent parts of the machine due to undesired penetration of wet concrete into the longbottom.
Claims9
In a non-vibratory counter rotating packerhead concrete pipe making machine
- a packerhead,
- said packerhead having a rollerhead and a longbottom,
- said rollerhead having a plurality of rollers mounted on a roller mounting member,
- a longbottom located beneath the rollerhead,
- said longbottom having a trowel means mounted on a longbottom mounting member,
- drive means for said packerhead, said drive means including a first drive assembly extending through the roller mounting member into driving engagement with the longbottom for rotating the longbottom in a first direction of rotation,
- a second drive assembly located above the longbottom in driving engagement with the rollerhead for rotating the rollerhead in a second direction of rotation or in the same direction of rotation as the longbottom but at a dissimilar speed, and
- fastening means for securing the longbottom to said first drive assembly whereby
- upon removal of said fastening means the rollerhead and the longbottom can be assembled to, and disassembled from, the drive means as a unit.
Dependencies are inferred from the claim text.