ich are expanded untilthey are large enough to be dropped easily over thetube, jacket or previous layerof hoops. Wood fuel is em-ployed to raise these parts to the requisite temperature.Great difficulty was experienced in excavating theshrinking pit, and it proved to be an enormously ex-pensive… … Fig. 8.-INTERI0R OF GUN SHOP AND MAMMOTH TRAVELING CRANE. of guns of 10-inch caliber. When ready, the tube,breech end up, is placed in a vertical position by theoverhead crane and the jacket lifted from its heatingfurnace and lowered over the tube into its properposition. Water circulating through…
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![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-23-8.webp)
