The Bridgeport times and evening farmer., 1920-04-30
REFRIGERATION
 IN CARS BETTER
(GoIden Age,)

A new system of car refrigeration l that shows great economies over older | systems has been invented by c. w. Mccoy, of Spokane. Wash. In old systems the cold air is administered from the ends of the car, and the storage tanks in which the ice and salt are kept are not insulated. The result is that about 20 per cent to 25 fer cent. of the storage capacity of the car is consumed by the tanks, and the cars have warm air strata in the top, and especially in the top cen ter;> near the doors, where deteriora- ton or loss is almost sure to occur in hot weather.
 The new system takes advantage of the scientific principle that warm air rises and cold. air falls. The tanks for the ice and salt occupy no part of the loading space of the car, ana they are insulated, on the principle of the Thermos bottle, so that no ap- preciable loss occurs from radiation. The brine of the tanks is made to cir culate automatically, by valves so ad- justed that the movement of the car insures the flow. The pipes convey ing the brine traverse the ceiling of the car, resulting in uniform chilling.
 This A-B-C system, as it is called, can be applied to all existing cars at low cost, and affords a double service; namely, uniform and economical heat ing in winter as well as refrigeration in summer. As a refrigeration car it hauls 25 per cent. more product with an ice consumption ranging from 50 to 70 per cent. less. Tests have been made in every branch of the perisha. ble freight industry, and it has been proven that the new system requires only about half the re-icing of other cars and will result in a saving of millions of dollars a year in foodstuffs as soon as it can be applied to all cars in the service. It has been adopted by the three Canadian transconti- mental lines and by Wilson & Com pany, packers. Its adoption by all other railway lines and packers is , only a matter of time.
 In a run from Chicago to Jackson vile this new system used 4,200 lbs. of ice and 5O4 lbs. salt. at a cost of S6,32, as against the use in an old style car of Il, 900 lbs. of ice and 1,23O lbs. of salt, at a cost of S19.45.
 In run from Calgary, Alberta, to Boston, it used S.400 lbs. of ice as against 15.O00 lbs. for an old style car. When opened, the temperature On top of load between doors was plus II degrees Fahrenheit, ten degrees better than old style.
 Among the records established at- tention is directed to the following: Shipment of fresh fish from Prince Rupert, B. C., to New York in ordi- nary Great Northern Express car Time in transit, nine days. Re-icing en route, one Total Ice consumed, in- cluding initial icing. 5.2OO lbs An even temperature of 36 degrees was maintained and the condition of the fish at point of destination was de- clared by the consignee to be perfect 1 Heating test over Canadian Pacific 1 Railway from Vancouver to Mon i treal. Time consumed in transit Is ! days. Contents of car, Japanese lily bulbs and bottled preserves. Reheat- ings in transit, four. A temperature [ of fron 45 to 50 degrees was main l tained.
 Shipment of mixed chilled fresf meat, Chicago to Jacksonville, Fla. I covering a period of seven days ana 10 hours, no re-icings in transit Total ice consumed, 3,40O lbs. An av craze temperature of 30 degrees wa maintained Meat unloaded at Jack sonville in first class condition
 The Great Northern Railway rnov. ed a car. of apples from Wenatchee
 Wash, to Chicago, and because of re duced ice eonsum ption and increased loading capacity, earned $13O.37 more than an ordinary car could earn.