Chapter XVIII: Introduction: Lubricants

THEORETICAL.—Chapter I. Mineral Oils: American and Russian; Hydrocarbons. Chapter II. Fatty Oils: Glycerides; Vegetable Oils; Fish Oils. Chapter III. Mineral Lubricants: Graphite; Plumbago. Chapter IV. Greases: Compounded; "Set" or Axle; "Boiled" or Cup. Chapter V. Tests of Oils: Mineral Oils. Fatty Oils.

MANUFACTURE.—Chapter VI. Mineral Oil Lubricants: Compounded Oils; Debloomed Oils. Chapter VII. Greases: Compounded Greases; "Set" or Axle Greases; Boiled Greases; Engine Greases. Appendix. The Action of Oils on Various Metals. Index.

TABLES.—I. Viscosity and Specific Gravity. II. Atomic Weights. III. Origin, Tests, Etc., of Oils. IV. Action of Oils on Metals.

LIST OF PLATES.—I.—I. I. Redwood's Improved Set Measuring Apparatus. II. Section Grease Kettle. III. Diagram of the Action of Oils on Different Kinds of Metals.

8vo, cloth, $1.50.

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PRACTICAL HANDBOOK ON

Gas Engines

With Instructions for Care and Working of the Same.

_BY G. LIECKFELD, C.E._

Translated with permission of the Author by _GEORGE RICHMOND, M.E._

WITH A CHAPTER ON OIL ENGINES

CONTENTS

Choosing and installing a gas engine. The construction of good gas engines. Examination as to workmanship, running, economy. Reliability and durability of gas engines. Proper erection of a gas engine. Foundation. Arrangement for gas pipes. Rubber bag. Locking devices. Exhaust pipes. Air pipes. Setting up gas engines. Brakes and their use in ascertaining the power of gas engines. Arrangement of a brake test. Distribution of heat in a gas engine. Attendance on gas engines. General remarks. Gas engine oil. Cylinder lubricators. Rules as to starting and stopping a gas engine. The cleaning of a gas engine. General observations and specific examination for defects. The engine refuses to work. Non-starting of the engine. Too much pressure on the gas. Water in the exhaust pot. Difficulty in starting the engine. Irregular running. Loss of power. Weak gas mixtures. Late ignition. Cracks in air inlet. Back firing. Knocking and pounding inside of engine. Dangers and precautionary measure in handling gas engines. Precautions when opening gas valves, removing piston from cylinder, examining with light openings of gas engines. Dangers in starting, cleaning, putting on belts. Oil Engines. Gas engines with producer gas. Gasoline and oil engines. Concluding remarks.

120 pages, illustrated, 12mo, cloth, $1.00.

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The Best and Cheapest in the Market

ALGEBRA SELF-TAUGHT

FOR THE USE OF

Mechanics, Young Engineers and Home Students

_BY W. PAGET HIGGS, M.A., D.Sc._

FOURTH EDITION

CONTENTS

Symbols and the signs of operation. The equation and the unknown quantity. Positive and negative quantities. Multiplication, involution, exponents, negative exponents, roots, and the use of exponents as logarithms. Logarithms. Tables of logarithms and proportional parts. Transportation of systems of logarithms. Common uses of common logarithms. Compound multiplication and the binomial theorem. Division, fractions and ratio. Rules for division. Rules for fractions. Continued proportion, the series and the summation of the series. Examples. Geometrical means. Limit of series. Equations. Appendix. Index. 104 pages, 12mo, cloth, 60c.

_See also_ Algebraic Signs, Spons' Dictionary of Engineering, No. 2. 40 cts.

_See also_ Calculus, Supplement to Spons' Dictionary, No. 5. 75 cts.

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THE

FIREMAN'S GUIDE

A Handbook on the Care of Boilers

_BY KARL P. DAHLSTROM, M.E._

CONTENTS OF CHAPTERS

I. Firing and Economy of Fuel.—Precautions before and after starting the fire, care of the fire, proper firing, draft, smoke, progress of firing, fuel on the grate, cleaning out, cleaning grate bars and ash pan, dampers, firing into two or more furnaces, dry fuel, loss of heat.

II. Feed and Water Line.—Feeding, the water line, false water line, defective feeding apparatus, formation of scale, gauge cocks, glass gauge, the float, safety plug, alarm whistle.

III. Low Water and Foaming or Priming.—Precautions when water is low, foaming, priming.

IV. Steam Pressure.—Steam gauge, safety valves.

V. Cleaning and Blowing Out.—Cleaning the boiler, to examine the state of the boiler, blowing out, refilling the boiler.

VI. General Directions.—How to prevent accidents, repairs, the care of the boiler when not in use, testing boilers, trimming and cleaning outside. Summary of rules. Index.

8vo, cloth, 50 cents.

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THE CORLISS ENGINE.

BY JOHN T. HENTHORN.

AND

MANAGEMENT OF THE CORLISS ENGINE.

BY CHARLES D. THURBER.

_Uniform in One Volume. Cloth Cover; Price, $1.00._

Table of Contents.