The air supply to the air-operating pumping devices will be
independent from the compressed air line which supplies air to the
switch and signal system, but break-down connections will be made
between the two systems, so that either system can help the other out
in case of emergency.
A special air-compressor plant is located at the 148th Street repair
shop, and another plant within the subway at 41st Street, for
supplying air to the pumps, within the immediate locality of each
compressor plant. For the more remote pumps, air will be supplied by
smaller air compressors located within passenger stations. In one
case, for the No. 2 sump, air will be taken from the switch and signal
air-compressor plant located at the No. 11 sub-station.
CHAPTER XI
REPAIR AND INSPECTION SHED
While popularly and not inaccurately known as the "Subway System," the
lines of the Interborough Company comprise also a large amount of
trackage in the open air, and hence the rolling stock which has
already been described is devised with the view to satisfying all the
peculiar and special conditions thus involved. A necessary corollary
is the requirement of adequate inspection and repair shops, so that
all the rolling stock may at all times be in the highest state of
efficiency; and in this respect the provision made by the company has
been lavish and liberal to a degree.
The repair and inspection shop of the Interborough Rapid Transit
Company adjoins the car yards of the company and occupies the entire
block between Seventh Avenue on the west, Lenox Avenue and the Harlem
River on the east, 148th Street on the south, and 149th Street on the
north.
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