CONTENTS

=GENERAL THEORY OF GAS ENGINES=--Simple explanation of cycle--The

four-stroke cycle--The two-stroke cycle--Advantages and

disadvantages of each.

=MOTOR DESIGN=--CYLINDER, what it is and its use. VALVES, mechanical

and automatic--Forms of valves--Valve timing and its influence

on the motor--Valve grinding, how to do it--Valve nomenclature.

CRANK CASE--The construction Bearings--Accessibility--Working

parts--Uses. A crank case oiling system. CRANK SHAFTS--What they

are--One, two, four and six-cylinder crank shafts--Crank case

diagram, showing instantly conditions in all cylinders--Diagram

showing firing points and sequence of same. CONNECTING

RODS--Construction and material--Bearings and lubrication.

PISTONS--Piston rings--Piston pins.

=THE CARBURETOR=--A very simple explanation of carburetion--The

mixing valve--A few of the first types--Some of the modern

carburetors--Foreign carburetors.

=IGNITION=--The make and break system--A simple explanation of the

apparatus used. THE JUMP SPARK SYSTEM--Electrical units. SOURCES

OF ELECTRICITY--The dry cell--The storage cell--Dynamos and

magnetos--The spark coil--Commutators and timing devices--Spark

plugs--Wiring diagrams.

=COOLING SYSTEM=--AIR COOLING. WATER COOLING--Direction of

circulation--Radiators--Water pumps--Fans--Anti-freezing

solutions.

=THE TRANSMISSION=--Reason for and use of transmission. SIMPLE

EXPLANATION OF ACTION--Individual clutch type--The sliding

gear--The three speed progressive--The three speed selective--The

four speed selective--Planetary gear--Friction drive.

=METHODS OF DRIVING=--Single chain drive--Double chain drive--Bevel

gear drive.

=RUNNING GEAR=--FRONT AXLE--Construction of--Steering Gear. REAR

AXLE--Differential gear--The live axle--The dead axle--Wheel

construction--Bearings.

=HORSE POWER DETERMINATIONS=--Engine testing--Indicated horse

power--Brake horse power--Mechanical and heat efficiency--Road

testing.

What a Prominent Trade Paper Says About It.

=A HANDBOOK OF PRACTICAL VALUE=--The latest addition to the popular

type of automobile handbook. “The How and Why of the Automobile,”

by Fay L. Faurote, fulfills what its author has set himself to

achieve, namely, to present a plain, easily understood description

of the modern automobile. Assuming that his reader knows nothing

about the subject, the author introduces the automobile in as simple

and untechnical a manner as possible. The _entire field_ is covered

and covered _so completely_ that the work can be _recommended as a

handbook for beginners or those with only a limited knowledge of this

subject_.--_Automobile_, April 18.

Send in your order at once--don’t delay. The price is $1.00 postage

pre-paid, and the address is

Motor Text Book Dept., ROBERT SMITH PTG. CO., Lansing, Mich., U. S. A.

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