This is a new and freshly published edition of this culturally important work by W. L. Brown, which is now, at last, again available to you.
Get the PDF and EPUB NOW as well. Included in your purchase you have Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155 in EPUB AND PDF format to read on any tablet, ereader, desktop, laptop or smartphone simultaneous - Get it NOW.
Enjoy this classic work today. These selected paragraphs distill the contents and give you a quick look inside Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155:
Look inside the book:
Each compressor was fitted with an automatic speed and air-pressure regulator, designed to vary the cut-off according to the volume of air required, and was provided with an after-cooler fitted with tinned-brass tube and eight Tobin-bronze tube-plates having 809 sq. ft. of cooling surface; each one was capable of reducing the temperature of the air delivered by it to within 10° Fahr. of the temperature of the cooling water when its compressor was operated at its fullest capacity.
...With the low-pressure compressor running at 125 rev. per min. (its maximum speed), it could furnish enough air at 43.8 lb. per sq. in. to supply the high-pressure compressor running at 85 rev. per min. (its maximum speed); and, with the high-pressure compressor delivering compressed air at 150 lb., the combined capacity of the arrangement would have been 4,389 cu. ft. of free air per min.