Popular Science Monthly 



27 



Keeping Things Cold in the 

 Automobile Refrigerator 



USlll) by the owners of a 

 large farm in Xi-wi^irl, 

 Minn., to deliver milk, but- 

 ter and kindred dairy pro- 

 ducts within a radius of 

 twenty-five miles, the one 

 thousand- five-hundred - 

 pound truck shown in the 

 accompanying' picture is in 

 reality a refrigerator on 

 wheels. It is equipped with 

 a double-sheathed body, 

 filled with sawdust between the inner 

 and outer skins to prevent radiation. 



The interior is kept cool by means of 

 a conventional ice-box placed directly 

 under the roof at the front end, which 

 is large enough to hold three hundred 

 pounds of ice. The box is zinc-lined and 

 is surrouniled on all sides by a layer of 

 charcoal. It is drained by means of a 

 pipe extending down through the double 

 floor to within a foot of the ground. 

 Directly beneath the ice-box are three 



At last we have a refrigerator on wheel- 

 ing dairy products 



shelves crosswise of the body for carrying 

 butter, bottled milk, pot-cheese, etc. 

 Ten-gallon cans of milk are carried at 

 the rear. 



The large cans of milk or .the goods 

 carried on the shelves can be removed 

 easily and quickly without opening the 

 rear doors, this being accomplished 

 through the two side doors, one on 

 either side, shown directly behind the 

 shelves. The doors are zinc-lined and 

 when shut are air-tight. — J. Husso.N. 



A Record Motor-Truck Load of Barrels 



CARRYING a part of its big load and the height above 

 above and in front of the driver's 



cab, the motor-truck pictured is equipped 

 with a special rack-body capable of 

 holding three hundred and eighty-five 

 barrels. This is one hundred and thirty- 

 five more than can be loaded into an 

 ordinary railroad freight car. Some 

 idea of the big load may be gathered 

 from the fact that the extreme fore and 

 aft length is about twenty-eight feet 



the ground, 

 fifteen feet. 



The vehicle, a three and one-half ton 

 truck, is owned and operated by a 

 manufacturer of barrels in Rock, near 

 Middleboro, Mass. Most of the com- 

 pany's product is used by the cranberry 

 growers in Plymouth county and down 

 Cape Cod way. The growers now get 

 their barrels directly from Middleboro 

 by the motor-truck and in much less 

 time than when shipped 

 by freight, due to the elimi- 

 nation of railroad delays 

 and the added haul from 

 the plant to the railway at 

 one end and from the 

 latter to the cranberry 

 fields at the other. In 

 addition, loading at the 

 sending end and unloading 

 at the receiving station are 

 avoided by the dircct-to- 

 the-door delivery of the 

 truck, which makes this 

 means of transportation 

 not only quicker but also 

 More barrels can be carried on this truck tlian in cheaper than rail. Only 



the largest freight-car empty barrels are carried. 



