Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 513
Fig. 503. is coiled on the shaft. The partition is hung upon powerful springnollers which exactly counter-balance the weight, so that the partitionBay be coiled with com <arative ease and will stay wherever put. … Fig. 504.—Casing for Wilsons Rolling Partitions. One side of the partition may be prepared with a flat smooth sur-face for blackboard use or decorative purposes if desired. COILING PARTITIONS. 5°9 For the Wilson partitions |-inch thick, the following spaces are re-quired inside of the coil box…
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