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Read Ebook: Pumps and Hydraulics Part 2 (of 2) by Hawkins N Nehemiah
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Ebook has 902 lines and 146532 words, and 19 pages
The divisions of Part Two are represented by the following headings: each subject is fully treated and illustrated on the pages shown:
pages INTRODUCTION TO PART TWO 1-10
THE AIR PUMP 13-30
AIR AND VACUUM PUMPS 31-56
AIR COMPRESSORS 57-78
THE AIR LIFT PUMP 79-90
THE STEAM FIRE ENGINE 91-142
MISCELLANEOUS PUMPS 143-176
MINING PUMPS 145-155
MARINE PUMPS 155-162
"SUGAR-HOUSE" PUMPS 165-167
CIRCULATING PUMPS 168
ATMOSPHERIC PUMPS 169-170
AMMONIA OR ACID PUMPS 171
THE SCREW PUMP 175-176
AERMOTOR PUMPS 177-192
ROTARY AND CENTRIFUGAL PUMPS 193-229
TURBINE PUMPS 231-242
INJECTORS AND EJECTORS 243-266
PULSOMETER AQUA-THRUSTER 267-280
PUMP SPEED GOVERNORS 281-296
CONDENSING APPARATUS 297-314
UTILITIES AND ATTACHMENTS 315-334
TOOLS, VALVES AND PIPING 335-356
PIPES, JOINTS AND FITTINGS 357-368
USEFUL NOTES 369-386
TABLES AND DATA 387-400
READY REFERENCE INDEX TO PART TWO
PREFACE
The owner of a great tannery had once an improvement in making leather proposed to him by a foreman, but the merchant could not comprehend it even with the most earnest verbal explanation. As a last resort he said, "put it in writing so that I can study it out." This was done and the change after an examination of the paper was made as advised. So in these volumes much important information is written and printed that it may be "studied out."
The author believes the following features of his work adapt it to the purpose for which it was designed:
NOTE.--The preface is almost invariably made after the book itself is finished, for an author never knows with much exactness whither his researches will lead him. The book he begins is not always the book he finished; this is especially the case with books relating to modern sciences and industry. As an instance of this, it may be told that at the commencement of this work it was generally agreed that the easy "lift" of the centrifugal pump was some sixty or eighty feet, and not much more, but the appropriate section relating to centrifugal pumps has reached a lift of two thousand feet had been practically assured by recent discoveries. This important difference demanded a change in the writing although--as it happened--not in the printing. This, to explain why here, the author gives generous praise to others who have assisted in the long task of making these volumes.
There came the moment, once upon a time, when the author of this book, in his eager pursuit of knowledge, asked one question too much, to which he received the "gruff" answer:
"Look ahere, I don't propose to make a dictionary of myself."
This was a painful retort from a man already under large obligations to the questioner, but it had its reason in being spoken. There are things in the way of a man's own craft that he most unwillingly imparts to anyone else.
It is not thus with this work; nothing has been withheld that would make it plain and helpful to one in need of the special line of information aimed to be conveyed in its make-up.
In making acknowledgment for favors received the author first remembers Mr. Alberto H. Caffee who arranged in behalf of the L. Middleditch Press for the issue of the work. Mr. Caffee's name appears in the dedication, with that of the brave soldier and accomplished gentleman Maj. Abram B. Garner.
The latter is one to whom "Jove has assigned a wise, extensive, all considerate mind." The author is proud to call him friend and to acknowledge the benefit received in kindly advice relating to his productions.
Mr. Harry Harrison's skill is shown in the "lay out" or typographical arrangement of the work and Mr. Henry J. Harms has contributed his careful supervision to each page of the book as it has gone through the press.
Lewis F. Lyne, Mechanical Engineer, has, amid his other responsible and active duties "passed upon" each page of the entire two volumes.
Mr. Lyne, it may be said, was one of the founders of the American Society of M. E.; he was also the first mechanical engineer on the editorial staff of the American Machinist in its early days, and contributed as editor and stockholder to its success. In his youth Mr. Lyne was apprentice in the machine shop of the Penn. R. R. and received his papers for full and faithful service.
Having been commodore of the Pavonia Yacht Club he has papers both as U. S. pilot and also as a marine engineer. He performed practical service both as locomotive fireman and was later superintendent of the Jersey City Electric Light Co. for a period of six and a half years.
Moreover Mr. Lyne was assistant master mechanic of the Delaware, Lackawanna & Western R. R. for seven years and had charge of establishing their new shops at Kingsland, N. J. Few men have had so long and honorable a record as Lewis Frederick Lyne.
Credit is due also to Mr. Edward F. Stevens, assistant at the Yale University library, New Haven, Conn., for a careful reading of the two volumes for clerical errors, punctuation, etc. Mr. Stevens is a graduate of Colby University and a ripe scholar; moreover after leaving college he has had some twelve or more years experience in business and editing with a mechanical book publishing house widely known throughout England and the U. S.--a rare combination of useful experience.
The final revision of the two volumes has been made by one of the brightest young engineers in New York City, now consulting engineer and attorney at Patent Law with offices in the Flat Iron Building, corner of Twenty-third St. and Fifth Avenue--Mr. Edward Van Winkle.
He is associate member of the Am. Soc. M. E. and associate member of the Canadian Soc. of C. E. He was a Student in The Stevens Institute of Technology, and graduated from Columbia University in the City of New York with the degree E. E.
These names should assure confidence in the contents of the work, which has been some years in preparation, and with nothing spared to make it trustworthy.
THE AIR PUMP
PNEUMATICS.
NOTE.--Fig. 330 is one of the simplest forms of an air pump. The description accompanying Fig. 341 properly applies to this one.
As the air which we breathe, and which surrounds us, is the most familiar of all this class of bodies, it is generally selected as the subject of Pneumatics. But it must be premised that the same laws, properties and effects, which belong to air, belong in common, also, to all a?riform fluids or gaseous bodies.
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