E - Fixed Constructions – 01 – F
Patent
E - Fixed Constructions
01
F
40/60
E01F 9/012 (2006.01) E04H 1/12 (2006.01) F16M 11/38 (2006.01) F16S 1/14 (2006.01) G09F 7/20 (2006.01)
Patent
CA 1104342
ABSTRACT OF DISCLOSURE A ground-based portable and collapsible structure, e.g. a road sign, comprises two similar rectangular plates (10, 11) hinged together and to be disposed in use in downwardly-diverging relationship and defining therebetween and included angle of at least 60° and at most 75° with their hinge-remote edges (14, 15) engaging the bottoms of re-entrant slots (16A, 16B) opening from the upper edges of spaced and parallel bar means (18) disposed on the ground transverse to said plate edges. Each bar means may be an inverted T-section bar or two L-section bars secured to one another with their vertical webs mutually opposite and spaced, preferably by spindles on which spiked metal strips are mounted for pivotal movement between a first nested position wherein they are accommodated in the gap between said vertical webs and a second position wherein they project downwardly from the L-section bars and can be forced into soft ground; the two strips are offset one to each side of the median plane bisecting said gap, being maintained in such dispositions by spacers mounted on the spindles alongside the strips.
329048
Cameron John S.
Fetherstonhaugh & Co.
LandOfFree
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