Building planks and a method of making the same

Details Building planks and a method of making the same Building planks and a method of making the same

E - Fixed Constructions

04

C

20/38.3

E04C 2/24 (2006.01) B23D 45/14 (2006.01) B27M 3/00 (2006.01) E04C 1/40 (2006.01) E04C 2/36 (2006.01) E04C 3/29 (2006.01) E04B 2/02 (2006.01)

Patent

CA 1113672

ABSTRACT OF DISCLOSURE An insulation filled building plank having two spaced apart boards held together and separated by webs having dovetail connections with the boards and being at an angle to the longitudinal axis of the plank so that any transverse cut of the plank will cut a web is produced on apparatus which first cuts matching dovetail grooves on surfaces of the boards arranged face to face after which the boards are turned to have the dovetail surfaces facing each other and the apparatus pulls dovetails of webs into the grooves in the boards from a magazine and then the apparatus fills the spaces between the webs and boards with an in situ foamable insulation.

317501

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