Concrete wall form with safety attachment

Claim 1

A concrete wall form assembly with an attachment for anchoring the hook element of a worker's safety belt to said assembly comprising a plurality of panels arranged edge to edge, each panel comprising an inner facing from which there projects outwardly a marginal supporting frame including vertical and horizontal siderails, said siderails having inner and outer side surfaces, the siderails of at least one pair of adjacent panels being arranged contiguously and having formed at correspondingly spaced intervals therealong a plurality of respectively aligned pairs of wedge-bolt-receiving slots extending through the contiguous siderails, said siderails further having longitudinal ribs projecting outwardly and parallel to said facing from the extremity of said siderails most-removed from said facing, said ribs having notches in alignment with said pairs of wedge-bolt-receiving slots, the corresponding notches of contiguous siderails being disposed in registration with one another and defining voids in alignment with at least some of said pairs of wedge-bolt-receiving slots, a wedge bolt mounted in at least one of said pairs of wedge-bolt-receiving slots, an attachment in the form of a strong plate having two spaced holes with said first hole pivotally accommodating said wedge bolt and thereby securing said plate within one of said voids and with said plate having a second hole spaced from said first hole sufficiently to be capable of being positioned beyond said rails and being adapted to receive said hook element, and a second wedge bolt locking said first wedge bolt in place, whereby said attachment is pivotally secured in one of said voids by said first wedge bolt.

Claim 5

A device as claimed in any one of claims 1 or 3, wherein the dimensions of said attachment along the axis between said holes of said attachment are not diminished from at least said second hole to and including the point for engagement by said member.

Claim 6

A device as claimed in any one of claims 1 or 3, wherein the spacing and physical dimensions and characteristics of said plate between said second hole and said member are selected so as to resist permanent bending or other failure due to forces exerted on said attachment at said second hole within predetermined standard safety limits.

Claim 7

A device as claimed in any one of claims 1, or 3, wherein said plate is made from flat metal.