New Britain herald., 1914-04-07

and hints are by William H. Stewart Jr.. who is president of the Stewart Automobile academy of New York city, and regarded as the leading au- thOrity on motor car education in this country. Queries from local an- toists will be cheerfully answered next week if possible.
 Motoring Department, The Herald Is a radiator any better if painted dull black; I mean aside from the radiation of the sun in summer?-L. J. H..
 Radiators are usually painted for convenience in keeping clean, not be- cause the painting has any material effect on Radiation. The more brass there is about car the more work ptheres&is to keep kthe' same looking neat. A coat of paint of any color on the radiator frame will not affect it's efficiency. Te
 Motoring Department, The Herald To settle a dispute will you tell me if it is possible to drive a chain-driv- en car home if one chain be broken 2. Ea l. READER. r. It is possible only by fastening the free sprocket in esome'eway to prevent
 
 be advisable to drive for s,a any great distance. < at
 Dueato the action of the differential, the sprocket on the side where the chain Was broken, having no resist ance or load to carry, would revolve just twice as fast. The sprocket on the other side, where the chain. is in- tact having load to carry. would he
 notionless. v - Motoring Department, The Globe What is the advantage of the float ing avle over, the semi floating? And it is not fact that the semi floating does not require any more repairs than the full floating, and will wear as long? CURIOUS.
 In the full floating type axle the transverse drive shafts and differ ential may be removed for repairs without disturbing the wheels or talk ing the axle housing apart. In this case the bea rings are, in the wheel hub, and the shafts simply do the driving.
 In the semi-foating type axle the wheels are keyed to the transverse shafts, which support the weight of the car as we'll as do the driving. To dis-assemble and repair this type is more difficult. 1t is reasonable to be- lieve that the full floating type re- quires less attention.
 Motoring Department, The Herald would like to know something about the properties of gasoline as a lubri- cant Would large size bearing which I constantly bathed in gasoline, DJv,iv, seventy revolutions per minute with light load, be likely to heat up if no lubricant other than gasoline was used "A. N. w.
 High grade gasoline has no lubri- eating qualities. In other words it has no viscosity The function of a lubricant is to separate metal sur- faces and prevent friction, which produces heat. High grade gasoline is very volatile, and evaporates read fly, leaving no residue. The lower | grades of gasoline contain more or less crude oil, and possibly you have in mind the use of the lower grades. Motoring Department The Herald- How does horsepower as applied in 1 mechanics, compare with the horse power of horse ?-John Houston The rate at which an engine does work is often measured in units called a horsepower, one horsepower being work done to the extent of 33,OOO foot pounds per minute, supposed to represent the maximum rate at which work could be done by horse Work done by an engine may mean either of two things, namely, the total work done by the engine, or the ef- fectiye work done by the engine. Both