. Bulletin - United States National Museum. Science. Figure 30.—Contemporary illustrations of Tower Subway works used as basis of the model in the Museum of History and Technology. {Illustrated London News, 1869.). Subway, that it is unlikely that there was any in- fluence from that source. Beach had himself patented a shield, in June 1869, a two-piece, sectional design that bore no resemblance to the one used. His subway plan had been first introduced at the 1867 fair of the American Institute in the form of a short plywood tube through which a small, close-fitting car was blown by a fan. The
. Bulletin - United States National Museum. Science. Figure 30.—Contemporary illustrations of Tower Subway works used as basis of the model in the Museum of History and Technology. {Illustrated London News, 1869.). Subway, that it is unlikely that there was any in- fluence from that source. Beach had himself patented a shield, in June 1869, a two-piece, sectional design that bore no resemblance to the one used. His subway plan had been first introduced at the 1867 fair of the American Institute in the form of a short plywood tube through which a small, close-fitting car was blown by a fan. The car carried 12 pas- sengers. Sensing opposition to the subway scheme from Tammany, in 1868 Beach obtained a charter to place a small tube beneath Broadway for trans- porting mail and small packages pneumatically, a plan he advocated independently of the passenger subway. Under this thin pretense of legal authorization, the sub-rosa excavation began from the basement of a clothing store on Warren Street near Broadway. The 8-foot-diameter tunnel ran eastward a short distance, made a 90-degree turn, and thence southward under Figure 31. Excavation in front of shield, Tower Subway. This was possible because of the stiffness of the clay encountered. MHT model— front of model shown in fig. 29. (Smithsonian photo 49260-A.) 228 I'.l II ETIN 24n: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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