US 4,541,477 AGranted

Socket core handling and positioning device for a centrifugal pipe casting machine

AssigneePont-A-Mousson S.A.

InventorsPierre Fort, Michel Pierrel

Life of this patent

Estimating the term…

Loading patent…

Abstract

A support stirrup 7 is rotatably mounted by horizontal shaft 8 at one end of a machine for centrifugally casting iron pipes 41 having end sockets 42a in a chill-mould 1. A ring assembly 31, CL is mounted between the arms of the stirrup for rotation about an axis Z--Z perpendicular to the shaft axis, but the plane of the assembly is tilted from its rotation axis by an acute angle D via an offset arm 34. With the stirrup raised to an intermediate position and the ring assembly rotated 90.degree. (FIGS. 3, 6) an operator can easily and safely mount a relatively heavy socket core 36 to the ring assembly, whereafter the latter is reverse rotated 90.degree. and the stirrup lowered to position the core in the end of the mould (FIGS. 1, 4). The stirrup can be fully raised (FIG. 2) to enable pipe extraction and visual inspection during casting.

Claims6

Dependent claims

An apparatus for handling and positioning a socket core (36) in association with a machine for centrifugally casting iron pipes (41) having end sockets (42a), comprising:

(a) an elongate machine casing (2),
(b) an open-ended chill-mould (1) rotatably mounted in the casing,
(c) a tilt support (7) mounted at one end of the casing for rotation about a first, horizontal axis (Y--Y) just above said one end,
(d) a first jack (29) mounted between the casing and the support for rotating the support between a lowered position whereat the support substantially overlies said one end, an intermediate position whereat the support is angled outwardly from said one end, and a fully raised position whereat the support extends above said one end,
(e) ring means (31, CL, 43) for gripping and supporting the socket core, and mounted to the tilt support for rotation about a second axis (Z--Z) perpendicular to the first axis, said ring means having a primary plane disposed at an acute angle (D) to the second axis, and
(f) a second jack (38) mounted between the tilt support and the ring means for rotating the ring means between a position coaxial with the chill-mould when the tilt support is in its lowered position and a position whereat the plane of the ring means faces laterally of the chill-mould,
(g) said acute angle opening downwardly when the tilt support is in its lowered position, whereby an operator may easily and safely mount a socket core on the ring means with the tilt support in its intermediate position and the ring means in its lateral position.

4 more elements

Dependencies are inferred from the claim text.