Apparatus for cutting hollow-cored concrete slabs

Details Apparatus for cutting hollow-cored concrete slabs Apparatus for cutting hollow-cored concrete slabs

1988-05-26

1990-05-08

Housel, James C.

Plastic article or earthenware shaping or treating: apparatus

Building forms or construction engineering type mold with...

83679, 83862, 83875, 425296, 4253021, 425515, B28B 1116

Patent

active

049233793

ABSTRACT:
An apparatus for the instant cutting of hollow-cored concrete slabs wherein the cast cored slabs are subjected to an instant cutting operation prior to the hardening of the concrete mix in such a manner that exposes the cores and the ends of the cores are filled to avoid jointing mix from intruding into the cores. The instant cutting is performed by driving two sheet-shaped cutting blades (3), which are mutually placed in a V-shaped posture, through the slab to make cutting tips (10) of the blades (3) meet at the bottom of the slab. A cutting knife (1), whose sides (16) face the mix and are disposed essentially parallel to the cutting blades (3), is driven through the slab, between the cutting blades (3), towards the cutting tips (10) of the blades (3). When the end cutting knife (1) reaches its lower position, the cutting blades (3) are lifted up, and the thus formed homogeneous sheet (17) of mix is pushed by means of the end cutting knife (1) to adhere to a cutting surface (18) formed by the cutting blades on the slab.

REFERENCES:
patent: 3217375 (1965-11-01), Kinnard
patent: 3771932 (1973-11-01), van Daal
patent: 4592916 (1986-06-01), Akesson
patent: 4608902 (1986-09-01), Ivey
patent: 4798118 (1989-01-01), Carithers, Jr.

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