he Berlin city market halls, a Fig. 4, so that one rib part can fold on to the other, as portion of the zine work which rested upon brick walls shown iu Fig. 1, thereby permitting a close folding of the umbrella. The ribs are pivotally connected by was found to be deeply pitted at a number of… … BERGESEN’S FOLDING UMBRELLA. swing upward and outward, thus moving the stitutes a decided economy, added to great ribs and the covering material into their proper facility in extraction and utilization. The places. The folding of the umbrella is readily accom- structure of the plant permits of the…
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