ations until new mone- is that instead of using temporary facings of timber or feet inside of the bulkhead line of the river. The shaft tary arrangements could be made. No man ever bat- other rigid material, I rely upon the air pressure to re- had hardly been sunk for half the proper depth when… … in the more rapid ly, about 2,300 ft. THE HUDSON RIVER TUNNEL-THE "ERECTOR" AND THE HYDRAULIC SHIELD. prosecution of the on the Jersey side work, the Beach and about 350 ft. Haskin as the projector j hydraulic shield has been introduced. Furthermore, cles than did Mr. Dewitt C The dark line shows…
Statutes · Munn · Patents · Water · Scientific American · Air · Cracked ice · Type writer · Congress approved · Approved february · Hot water · Perspective view · Hudson river · Compressed air · Sir benjamin
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