Samples of the galvanized pipe that had been in use for upward of ten years were found to have a very slight coating or deposit of rust on the inside of the pipe, less than one-thirty-second of an inch thick, and adhering very tightly to the surface. By removing this rust with a sharp instrument it was found that the galvanizing was as clear and bright as when originally put on.
FIG. 27.—SIMPLE METHOD OF SUPPORTING BRINE PIPES.
Cellar Ceiling Suspension.
—In [Fig. 27] is shown a very simple, inexpensive and effective method of supporting brine pipes in cold storage rooms, or in rooms used as curing cellars, etc. This arranges a combination whereby a drip pan can be suspended for catching the drip, the construction being illustrated. It is preferable to line the pans with galvanized iron so as to preclude possibilities of leakage. The wooden construction of the ordinary class is usual.
Ratio of Piping.
—Regarding the quantity of pipe required, this in a measure depends upon the insulation of the cellars and the temperature of brine circulated. With brine at a temperature of 10° F., one lineal foot of pipe will supply radiation sufficient for twenty cubic feet of cellar.
FIG. 28.—GARDNER’S “CURTAIN” SYSTEM FOR BRINE CIRCULATION AS INSTALLED IN A CHICAGO PACKING HOUSE.