B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/98
B23P 19/00 (2006.01)
Patent
CA 1039483
Abstract of the Disclosure Construction elements comprising two parallel nailable plates interconnected by corrugated metallic web sheets extending edgewise between them and having teeth at their edges embedded in the plates are commercially manufactured as follows in a machinery designed for the purpose: The bottom plate is placed in a movable frame equipped with displaceable abutments connected to clamping means. The strips are placed in positions so as to be clamped by the said means at their extremities, the extremities of longitudinal strips being pinched in folds of transversal end strips. Thereby also interlocking deformations are punched in the adjoining webs. The clamping means are moved for stretched the strips, the upper plate is placed on top, and web strips are plates are brought into correct relative positions by corresponding positioning of the abutments. In addition longitudinal web strips extending along edges of the element are supported externally between clamping points by spring-loaded rulers connected to abutments so as to ensure correct spacing from the plate edges. With the components of the element thus aligned the frame is moved into a press and the components pressed together, the abutments yielding vertically against spring-load. Then the frame with the element is removed from the press, and the grip by the abutments and clamping means released. For permitting stepwise pressing of elements longer than the press the latter has a smoothly converging entrance portion. In its preferred form the web sheet has a largely trapezoidal corrugation, a z-shaped cross-section of the teeth and shallow depressions between the consecutive teeth, suited as starting points for folds to be formed.
218668
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