B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/27
B28B 21/26 (2006.01) B28B 21/16 (2006.01)
Patent
CA 1115502
APPARATUS AND METHOD FOR SIMULTANEOUSLY MAKING A PLURALITY OF CONCRETE PIPES ABSTRACT OF DISCLOSURE: A machine having two packer heads operable to simultan- eously make two concrete pipes. A pair of jackets mounted on a turntable are located in vertical alignment with two packer heads. A gear box mounted on a cross head is connected to down- wardly directed shafts operable to rotate the packer heads. The cross head is movably mounted on an upright frame to lower the packer heads into the bottom area of the jackets. Separately controlled conveyors discharge concrete into the jackets above the packer heads. Separately rotatable funnels and stationary wiper blades are used to control the movement of concrete into the jackets. The packer heads are simultaneously rotated and elevated in the jackets to build up the cylindrical walls of the pipes. A dual bell packer is moved into engagement with the pallets at the lower end of the jackets to rotate and vibrate the pallets to form the bell sections of the concrete pipes. A pallet positioner is used to locate the pallets on the turntable.
269255
Hydrotile Canada Limited
Marks & Clerk
LandOfFree
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