Adjustable concrete formwork system

Details Adjustable concrete formwork system Adjustable concrete formwork system

1991-03-26

1993-06-15

Friedman, Carl D.

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

249 47, 249155, 249157, 249189, E04G 1500

Patent

active

052194736

ABSTRACT:
This invention pertains to a novel adjustable formwork system which can be used in the manufacture of a wide range of structurally efficient cross-sectional shaped concrete beams, columns and structures. A cast-in-place concrete beam form comprising: (a) at least two spatially oriented upper sleeves, with an upper web located on one side of the two sleeves, and extending therebetween; (b) at least two spatially oriented lower sleeves, with a lower web located on one side of the two sleeves, and extending therebetween; and (c) at least two members, each member connecting telescopically the respective upper sleeve with the respective lower sleeve, said telescoping members enabling the two upper sleeves to be raised or lowered relative to the two lower sleeves.

REFERENCES:
patent: 805883 (1905-11-01), Russell
patent: 2021210 (1935-11-01), Thorn
patent: 2511829 (1950-06-01), Arrighini et al.
patent: 2614311 (1952-10-01), Shook
patent: 3595516 (1971-07-01), Rice
patent: 4815960 (1989-03-01), Rudolph
patent: 4917346 (1990-04-01), Mathis

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