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Roof arrangement comprising tarpaulins and a plurality of lattice girders
| Details |
Inventors: Wackerbauer, Anton;
Assignee: WACO, Wackerbauer & Co. (Eichenau, DE)
Primary Examiner: Smith; Creighton
Assistant Examiner:
Attorney, Agent or Firm: Townsend and Townsend and Crew
A lattice girder (11) has an upper chord (12), a middle chord (13) and a lower chord (14) between which stiffening struts (15, 16) extend. Furthermore, at least one piping groove (17, 17', 18, 18') is provided at the middle chord (13) at at least one side of the lattice girder (11) and extends parallel to the longitudinal extent. The pipings (19) of the tarpaulin(s) (20, 20') are drawn into the piping groove in the longitudinal direction. In acchordance with the invention two piping grooves (17, 18; 17', 18') are provided above one another at at least one side and preferably on both sides of the middle chord (13). |
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DETAILED DESCRIPTION I claim: 1.
A roof arrangement for suspending a plurality of tarpaulins in overlapping arrangement between a plurality of lattice girders, the roof arrangement comprising in combination: a plurality of tarpaulins, each tarpaulin having at least a central tarpaulin expanse and paired parallel edges, each of the paired parallel edges having pipings defining expanded thickness to the tarpaulin expanse at the edges thereof; at least a pair of side-by-side spaced apart lattice girders, each of the lattice girders including, an upper elongate chord; a lower elongate chord underlying the upper elongate chord; a medial elongate chord disposed between the upper elongate chord and the lower elongate chord; interconnecting members extending between the upper elongate chord, the lower elongate chord and the medial elongate chord for fastening said members into the lattice girder; at least an upper groove member attached to the lattice girder opening at least to one side of the lattice girder to receive and retain a first tarpaulin piping with the tarpaulin extending from the groove member; and, at least a lower groove member attached to the lattice girder opening at least to the one side of the lattice girder to receive and retain a tarpaulin piping with the tarpaulin extending from the groove member; the respective groove members facing one another from the side-by-side spaced apart lattice chords; a first tarpaulin threaded at the pipings to the upper groove member of the lattice girders; and, a second tarpaulin threaded at the pipings to the lower groove member of the lattice girders; whereby when the lattice girders are spaced side-by-side, respective first tarpaulins and second tarpaulins are placed in the upper groove member and in the lower groove member to at least overlap one another to form the roof arrangement.
2.
A roof arrangement in accordance with claim 1 and wherein a spacing of the chords perpendicular to their elongate length is from three to six times a thickness of said chords
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Screen Walls 
