T.A. Gillespie Company, engineers and contractors - water works and pipe lines, railroad and tunnel construction, hydroelectric plants. (1912) (14574257310)

Identifier: tagillespiecompa00tagi (find matches)
Title: T.A. Gillespie Company, engineers and contractors : water works and pipe lines, railroad and tunnel construction, hydroelectric plants.
Year: 1912 (1910s)
Authors: T.A. Gillespie Company.
Subjects: Pipe Pipe, Steel
Publisher: New York : T.A. Gillespie Co.
Contributing Library: Columbia University Libraries
Digitizing Sponsor: The Durst Organization



Text Appearing Before Image:
g of three 6-inch, 6-stage, 600-gallonV\ orthington centrifugal pumps, operated by General Electric motors, and Cameron horizontal pumps, oper-ated by steam and compressed air, and having a total capacity of 5,200 gallons per minute, discharged at the top of the shaft. An emergency water lock of concrete, with a very heavy timber door was also installed in the tunnelbetween the pumping plant and the main inflow of water. November 30, 1910, this lock was brought into service due to a surface explosion, which cut off thepower to the entire pumping plant for a short time. When pumping operations were again resumed, a dis-rge to the surface of 4,800 gallons per minute was maintained until the heading was unwatered and the normal flow again encountered. The principal construction quantities were as follows: Shaft Excavation 45,000 cubic yards Tunnel Excavation 300,000 cubic yards Concrete in Shafts and Tunnels 140,000 cubic yards Portland Cement 235,000 barrels 40 ENGINEERS AND CONTRACTORS
Text Appearing After Image:
Ten Duplex Corliss Compound Steam, Two-stage Air Compressors, developing over 4,000 H. P. and delivering24,000 cubic feet of free air per minute, compressed to I 10 pounds gauge. Contract No. 12.Catskill Aqueduct, for the Board of Water Supply, City of New York—1909. THE T. A. GILLESPIE COMPANY