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ENGINEERS' MANUAL

OF THE

LOCAL MARINE BOARD

EXAMINATIONS,

FOR CERTIFICATES OF COMPETENCY, AS SECOND AND FIRST-CLASS ENGINEERS,

(WITH UPWARDS OF ONE HUNDRED AND FIFTY

ILLUSTRATIVE DIAGRAMS, &c.)

BY THOMAS L. AINSLEY,

AUTHOR OF "A GUIDE BOOK TO THE LOCAL MARINE BOARD

EXAMINATION,” ETC., ETC.

Seventeenth Edition.

1. AUG 1582 -

PODLEIAN BE

[Entered at Stationers' Hall.]

SOUTH SHIELDS:
PRINTED AND PUBLISHED BY THOMAS L. AINSLEY, 16, MARKET PLACE,

AND 86, BUTE STREET, CARDIFÉ.
LONDON: R. H. LAURIE, 53, FLEET STREET: CHARLES WILSON
(LATE NORIE AND WILSON), 157, LEXDENTIALL STREET; J. IMRAY AND SON,

89 AND 102, MINORIES;

E. & F. N. SPON, CHARING CROSS;
SIMPKIN. MARSHALL AND CO. STATIONERS' HALL COURT.
HAMILTON, ADAMS, AND Co., 32, PATERNOSTER ROW:

SAMPSON, LOW, MARSTON, & Co., FLEET STREET.
LIVERPOOL: GEORGE PHILIP AND SON, CAXTON BUILDINGS.

MELBOURNE AND SYDNEY: G. ROBERTSON.

1880,

186. b. 122

SOUTH SHIELDS: THOMAS L. AINSLEY, PRINTER, MARKET PLACE.

PREFACE.

This work is intended for the use of Engineers desirous of obtaining Certificates of Competency, either as Second-Class or First-Class Engineer, The Work is drawn up with a view to selfinstruction, or for the use of Schools.

It contains rules for working out the several Problems that are presented to candidates, with model solutions of, and numerous exercises to each Problem. A number of Examination Papers are also given. The chapter on the “Indicator” is illustrated by a large number of choice Diagrams, taken from Engines by the most eminent makers—including some from the Screw and Paddle Engines of the Great Eastern; H.M.S.S. Nile; the Iron-clad Research; the R.M.S.S. China; the Sea King (Confederate Cruiser); the S.S. Hansa, &c., &c.; also some rare and valuable ones from a Compound Marine Engine by Messrs. Rowan & Co., &c. This species of engine combines the various improvements of a high pressure of steam with superheating and surface condensation, and is reported by Professor RANKINE to have acted with a smaller consumption of fuel than has been hitherto attained in any engine whatever.

The mode of reading Indicator Diagrams is fully treated of, and also practical hints are given as to the important information to be obtained from them. It also contains chapters on Surface Condensers, Superheated Steam, Proportions of Engines, and such other related subjects as are required for the viva voce Examinations.

The Answers are given in full at the end of the book, with copious details of the intermediate parts of the solution.

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ADVERTISEMENT TO SEVENTEENTH EDITION.

In the present Edition of the Engineers' Manual an attempt has been made to adapt it to the present requirements of the Board of Trade Examinations. The Examination Papers are a selection from some of those which have been given to Candidates at the Examinations.

T. L. A.
March 4th, 1880.

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