Tunnel like formwork

Details Tunnel like formwork Tunnel like formwork

1975-11-05

1977-04-12

Flint, Jr., J. Howard

Static molds

Core

Of resilient material capable of flexure to aid removal of...

249178, 249188, 249 27, E04G 1102, B28B 730

Patent

active

040170527

ABSTRACT:
A tunnel-like formwork comprising two side shuttering panels connected together at their upper edges by a flexible upper shuttering panel. The side shuttering panels are provided with wheels. Inside of the said formwork, a framework structure is disposed, comprising at least four upright members to the upper ends of which four arms are hingedly connected, the said arms being in turn hingedly connected at their lower sides to one end of four inclined struts elements the other end of which is slidingly guided into a slide guide formed in the said upright members. The said upright members are provided at their lower ends with retractable bearing feet.
Power operated means are provided for simultaneously urging the said struts in a direction in which the arms hinged to said struts sustain the said flexible upper shuttering panel in a horizontal plain, and for lowering the said retractable feet into bearing engagement with the floor, while urging the two side shuttering panels sidewise, so as to place the formwork into operation.

REFERENCES:
patent: 2578310 (1951-12-01), Lager
patent: 3373571 (1968-03-01), Records
patent: 3693927 (1972-09-01), Jennings
patent: 3815861 (1974-06-01), Maier
patent: 3822853 (1974-07-01), Shelley

Affiliated with

Also associated with

Rating

Tunnel like formwork does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tunnel like formwork, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunnel like formwork will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1277195