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THE
ENGINEER’S SKETCH-BOOK.
THE
Engineer’s Sketch-Book
OF
MECHANICAL MOVEMENTS,
DEVICES, APPLIANCES, CONTRIVANCES
AND DETAILS
EMPLOYED IN THE DESIGN AND CONSTRUCTION OF
MACHINERY FOR EVERY PURPOSE
CLASSIFIED & ARRANGED FOR REFERENCE FOR THE USE OF ENGINEERS, MECHANICAL
DRAUGHTSMEN, MANAGERS, MECHANICS, INVENTORS, PATENT AGENTS,
AND ALL ENGAGED IN THE MECHANICAL ARTS
BY THOMAS WALTER BARBER
M. Inst. C. E.
FOURTH EDITION
2603 Illustrations, Descriptive Notes and Memoranda
London:
E. & F. N. SPON, Limited, 125 STRAND
New York:
SPON & CHAMBERLAIN, 12 CORTLANDT STREET
1902
PREFACE.
Every successful engineer is a born inventor; indeed the daily workof an engineer in practice largely consists in scheming and devisingfrom previous experience new and improved processes, methods, anddetails for accomplishing them, and for simplifying or cheapening oldforms of machinery and the work they produce, to enable him tosuccessfully compete with others, who are perhaps as ingenious andenterprising as himself.
In the work of designing machinery the draughtsman has to relymainly on his memory for inspiration; and, for lack of an idea, hasfrequently to wade through numerous volumes to find a detail or movementto effect a particular purpose. Hence, as a rule, every man’swork runs in a groove, his productions generally having the stamp ofhis particular experience and training clearly marked upon them.
In the course of twenty-five years of such experience, I have foundthe want of such a volume as the present, and endeavoured to supplythe deficiency in my own practice by private notes and sketches,gathered promiscuously, until the difficulty of selection and a