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Mechanical Appliances Mechanical Movements and Novelties of
Construction A COMPLETE WORK AND A CONTINUATION, AS A SECOND
VOLUME, OF THE AUTHORS BOOK ENTITLED MECHANICAL MOVEMENTS, POWERS
AND DEVICES. BEING MORE SPECIAL IN SCOPE THAN THE FIRST VOLUME,
INASMUCH AS IT DEALS WITH THE PECULIAR REQUIREMENTS OF THE VARIOUS
ARTS AND MANUFACTURES, AND MORE DETAILED IN ITS EX PLANATIONS
BECAUSE OF THE GREATER COM PLEXITY OF THE MACHINERY SELECTED FOR
ILLUSTRATION. WITH A CHAPTER ON RADIO TELEGRAPHY AND TELEPHONY AND
Including an Explanatory Chapter on the Leading Conceptions of
Perpetual Motion Existing During the Past Three Centuries BY
GARDNER D. HISCOX, M. E. Author of Gas, Gasolin and OU Engines,
Compressed Air, etc. Containing One Thousand Specially Made
Illustrations FIFTH REVISED AND ENLARGED EDITION NEW YORK THE
NORMAN W. HENLEY PUBLISHING CO. WBT 45TU STREET 1923 OOPYMOHTBD,
1023, 1917, 1914, 1910 AND 1004, tiv THE NOftMAN W. HENLEY
PUBLISHING COMPANY ALHO KNTBRJCD AT STATIONBIW HALI Corsr, LONDON,
AH Ki HUNTED IN U. S. A, Preface, THE many editions through which
the first volume of Mechanical Movements has passed is more than a
suffi cient encouragement to warrant the publication of a second
volume, more special in scope than the first, inasmuch as it deals
with the peculiar requirements of various arts and manu factures,
and more detailed in its explanations, because of the greater
complexity of the machinery selected for illustration. Despite the
greater simplicity of the devices which have been pictured and
briefly explained in the first volume, the appli ances described in
this second volume can be just as easily understood, the text
having been so worded that no insuper abledifficulties are
presented to the reader of average mechani cal knowledge. More
extensive though it may be than Mechanical Movements, the present
work by no means ex hausts the subject, Many an apparatus has been
omitted, either because limitations of space have intervened, or
because of the impossibility of securing adequate details of
construc tion. The machines incorporated, however, cover so vast a
mechanical field and have been so carefully selected to supply the
needs of the student seeking general information, that they will 1
0 found fairly representative of the power devices used in old and
modern industries. Mechanical intelligence may well be deemed to
have found its highest expression in the con trivances that are
illustrated and described in these pages. Although the author has
not the slightest desire to encour age the hopeless pursuit of
perpetual motion, he has, neverthe less, thought it advisable to
dwell at some length on the exceed ingly ingenious means devised by
misguided inventors in their endeavors to solve an unsolvable
problem. The pages in which perpetual motion machines are described
may induce those who still believe in reaching this ignis fatnits
to bend their energies in causes more worthy of their xeal.
Moreover, it may be that some of the mechanical movements which
have been evolved by the perpetual motion inventor, although they
may not attain the end sought by him, may still be applied with
profit to his instruction in true mechanical principles and to
avoid the errors committed in the search on the lines of this folly
of past centuries. This in itself is a sufficient justification of
the insertion in this volume of the seel ion on perpetual motion.
Thedeeper we delve in the research for novelty and variety in the
present field of mechanical design, the more we see the
possibilities of human ingenuity. The facility and power of
construction shown in the complicated mechanism of the past augur
well for the future of inventive genius. GARHNKK I. Hxscox.
CONTENTS. SECTION L MECHANICAL POWER LEVER. Lever in a Draught
Equalizer Timber or Log Grapple Lever Equalizer for Sulky Plows
Lever Equalizer for Three Horses Lever Nippers. SECTION II.
TRANSMISSION OF POWER...
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