Device for forming and handling concrete pipe

Claim 2

A mold handling apparatus for use with a concrete pipe mold having a pair of longitudinally hinged sections, and adapted for attachment to a vehicle having a lifting mechanism; said handling apparatus comprising: mounting means affixed to the lifting mechanism of the vehicle; handling means mounted on said mounting means and disengagably securable to the mold; stripping means mounted on said mounting means and disengagably securable to the hinged sections of the mold, said stripping means being capable of rotating said hinged sections outwardly of a pipe contained therein thereby stripping the mold from the pipe.

Claim 3

The handling apparatus of claim 1 adapted for attachment to a vehicle having a normally vertically disposed hydraulic lifting cylinder wherein said mounting means comprises: a carriage attached to the lifting cylinder; mounting bars extending from said carriage; said mounting bars being aligned and horizontally disposed; two side aprons mounted on said mounting bars on opposing sides of said carriage and extending forwardly of said carriage.

Claim 4

The handling apparatus of claim 2 wherein said handling means comprises a plurality of bifurcated fingers mounted on said side aprons and extending forwardly of said side aprons; said fingers being normally horizontally disposed.

Claim 5

The handling apparatus of claim 3 where said stripping means comprises: at least one hydraulic cylinder mounted on each of said side aprons and substantially horizontally disposed; a piston secured in each of said cylinders and extending forwardly oF the side apron, said piston being movable in said cylinder; a stripping shoe rotatably secured to said piston and rotatably secured to one of said bifurcated fingers; pin means mounted on said stripping shoe and projecting upwardly therefrom, said pin means being engagable with the attaching means on the hinged sections of the mold.

Claim 6

The handling apparatus of claim 4 wherein the portion of said stripping shoe rotatably affixed to said bifurcated finger has a notch formed therein, said notch being superposable with the void between the bifurcations of said finger when said piston is extended in said cylinder.

Claim 7

The handling apparatus of claim 5 wherein said carriage is horizontally rotatable on said lifting cylinder and wherein the horizontal rotation is limited by: a leg rigidly attached to the base of the lifting cylinder and extending outwardly of said carriage; two spring members mounted on said leg and bearing against opposite sides of said carriage thereby limiting the horizontal rotation of said carriage.

Claim 8

The handling apparatus of claim 6 wherein adjustment rods project from two opposing sides of said carriage, said adjustment rods being aligned with said mounting bars and adjustably mounting said side aprons.

Claim 9

The handling apparatus of claim 7 wherein said bifurcated fingers are adjustably affixed to said aprons and wherein said hydraulic cylinders are adjustably affixed to said aprons.

Claim 10

A mold handling apparatus for use with a concrete pipe mold having a pair of longitudinally hinged sections defining the outer configuration of a pipe, the handling apparatus comprising: handling means disengagably securable to the mold, said handling means comprising a bifurcated finger; and stripping means disengagably securable to the mold and comprising a shoe element, one portion of which is bifurcated and superposable with said bifurcated finger, a second portion of which is disengagably securable to the mold, and a third portion of which is engagable with a stripping motor means, said stripping motor means operable to rotate the hinged sections outwardly from each other.

Claim 11

A mold handling apparatus for use with a concrete pipe mold having a pair of longitudinally hinged sections defining the outer configuration of a pipe, the handling apparatus comprising: handling means disengagably securable to the mold, said handling means comprising a bifurcated finger; and stripping means disengagably securable to the mold and comprising a shoe element, one portion of which is bifurcated and superposable with said bifurcated finger, a second portion of which is disengagably securable to the mold, and a third portion of which is engagable with a stripping motor means, said stripping motor means operable to rotate the hinged sections outwardly from each other.

Claim 12

Mold handling apparatus as defined in claim 9, and wherein said stripping motor means comprises a piston and cylinder device the piston of which is rotatably engaged with said third portion, movement of said piston rotating said finger thereby swinging a hinged section engaged by said finger relative to another section.

Claim 13

A mold handling apparatus for use with a concrete pipe mold having at least a pair of longitudinally hinged sections defining the outer configuration of the pipe, the handling apparatus comprising: handling means disengageably securable to the mold; and stripping means disengageably securable to the hinged sections of the mold, said stripping means operable to rotate the hinged sections outwardly from each other, said stripping means including a stripping shoe one portion of which is bifurcated and adapted to engage an upstanding element of the mold and another portion of which is disengageably securable with the mold, said shoe adapted to be pivotally moved horizontally about the upstanding element.

Claim 14

A mold handling apparatus for use with a concrete pipe mold having at least a pair of longitudinally hinged sections defining the outer configuration of the pipe, the handling apparatus comprising: handling means disengageably securable to the mold; and stripping means disengageably securable to the hinged sections of the mold, said stripping means operable to rotate the hinged sections outwardly from each other, said stripping means including a stripping shoe one portion of which is bifurcated and adapted to engage an upstanding element of the mold and another portion of which is disengageably securable with the mold, said shoe adapted to be pivotally moved horizontally about the upstanding element.

Claim 15

A mold handling apparatus for use with a concrete pipe mold having a pair of longitudinally hinged sections defining the outer configuration of the pipe, a vertical hinge rod extended through a journal device at each junction of said hinged sections, said apparatus adapted for attachment to a movable carrier: a support element adapted to be secured to the exterior of the mold and when secured having a pair of angularly spaced portions disposed in the same horizontal plane with each other; a pair of bifurcated members each engageable with one of the hinge rods; a pair of shoes, one for each of said members, disengageably connectable with one of said portions; and power means connected between each one of said shoes and the carrier, said power means operable to pivot each of said shoes about the respective connection of each member with its hinge rod, said shoes movable away from each other from a position wherein said sections are closed, when said members are engaged with the hinge rods, to a position wherein said sections are open, said shoes movable toward each other from a position wherein said sections are open, when said members are engaged with the hinge rods, to a position wherein said sections are closed.

Claim 16

A mold handling apparatus for use with a concrete pipe mold having a pair of longitudinally hinged sections defining the outer configuration of the pipe, a vertical hinge rod extended through a journal device at each junction of said hinged sections, said apparatus adapted for attachment to a movable carrier: a support element adapted to be secured to the exterior of the mold and when secured having a pair of angularly spaced portions disposed in the same horizontal plane with each other; a pair of bifurcated members each engageable with one of the hinge rods; a pair of shoes, one for each of said members, disengageably connectable with one of said portions; and power means connected between each one of said shoes and the carrier, said power means operable to pivot each of said shoes about the respective connection of each member with its hinge rod, said shoes movable away from each other from a position wherein said sections are closed, when said members are engaged with the hinge rods, to a position wherein said sections are open, said shoes movable toward each other from a position wherein said sections are open, when said members are engaged with the hinge rods, to a position wherein said sections are closed.

Claim 17

A mold handling apparatus as defined in claim 12, and wherein each bifurcated member engages a hinge rod directly below a journal, and with lift means provided for connection to the carrier, said lift means operable to raise said members whereby to vertically move the mold.