The Brass World and Platers's Guide, Vol. 11 (Classic Reprint) PDF Download

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Publisher: Forgotten Books
ISBN: 9780331605136
Category : Technology & Engineering
Languages : en
Pages : 542

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Excerpt from The Brass World and Platers's Guide, Vol. 11 Glue for use in the plating room should be well boiled, and the wheels, after cleaning off the Old glue and emery, must be sized with a thin mixture of glue and hot water and after drying, coated with the regular glue or rolled in emery. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Erwin S. Sperry
Publisher: Forgotten Books
ISBN: 9780483111561
Category : Technology & Engineering
Languages : en
Pages : 472

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Excerpt from The Brass World and Platers' Guide, 1911, Vol. 7: A Monthly Journal The arrangement consists of two tackle blocks with a in. Rope in them. The top block is fastened to a jib crane and from it rod and breast-piece extend. This breast-piece and rod are for off - setting the strain exerted in pulling on the rope. The helper places the breast piece across his breast and then pulls on the rope. The caster steadies the tongs with his hands. The rod, attached to the breast piece, also serves to push the crane around to the molds. The rope does not burn as it is too far from the fire and a long hook is used to connect the crucible tongs and the lower tackle block. The advantage of the arrangement is that it provides a much more rapid means of pulling out the crucible than with a chain block, and it also is used for holding and steadying the crucible while it is being poured into the molds. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Erwin S. Sperry
Publisher: Forgotten Books
ISBN: 9780484156462
Category : Technology & Engineering
Languages : en
Pages : 468

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Excerpt from The Brass World and Platers' Guide, 1910, Vol. 6: A Monthly Journal In Fig. 2 is shown the method of heating an evaporating dish by means of a sand-bath. The sand - bath itself is simply a shallow dish of sheet iron. An old tin pan or enameled iron dish may be used as long as it is not soldered together. It is filled with sand and the dish set down into it evenly so that the sand comes in contact with the bottom. The whole is heated by a gas stove or any other desired means at hand. The object of the sand is to allow a gradual and uniform heat ing. If a naked flame. Is applied to the dish. The heat is too fierce and uneven. And under such circumstances the dish is apt to crack. 4\ water-bath can also be used but it is not as convenient as the sand. The best porcelain dishes are glazed on the inside so that they are readily kept clean. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Hardpress
Publisher: Hardpress Publishing
ISBN: 9781314261578
Category :
Languages : en
Pages : 546

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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Author: Jostein Gaarder
Publisher: Farrar, Straus and Giroux
ISBN: 1466804270
Category : Fiction
Languages : en
Pages : 735

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A page-turning novel that is also an exploration of the great philosophical concepts of Western thought, Jostein Gaarder's Sophie's World has fired the imagination of readers all over the world, with more than twenty million copies in print. One day fourteen-year-old Sophie Amundsen comes home from school to find in her mailbox two notes, with one question on each: "Who are you?" and "Where does the world come from?" From that irresistible beginning, Sophie becomes obsessed with questions that take her far beyond what she knows of her Norwegian village. Through those letters, she enrolls in a kind of correspondence course, covering Socrates to Sartre, with a mysterious philosopher, while receiving letters addressed to another girl. Who is Hilde? And why does her mail keep turning up? To unravel this riddle, Sophie must use the philosophy she is learning—but the truth turns out to be far more complicated than she could have imagined.

Author: Erwin S. Sperry
Publisher: Forgotten Books
ISBN: 9781333258344
Category : Technology & Engineering
Languages : en
Pages : 472

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Excerpt from The Brass World and Platers' Guide, 1913, Vol. 9: A Journal Devoted to the Art of Refining, Alloying, Casting, Rolling, Founding, and Electroplating of All the Non-Ferrous Metals That a gold plating solution should be run hot whenever possible as the deposit has a better color. And covers more thoroughly and more rapidly. That nickel solutions become alkaline by the introduction of potash or soda from the clean ing kettle and not from other causes. The tendency 6f a nickel solution is to become acid rather than alkaline unless an alkali is actually introduced. That a silver solution should be kept free from sediment or it will settle on the work and cause pits. That boracic acid is an excellent ingredient of nickel plating solutions as it produces a white deposit and prevents pitting. That sal-ammoniac in a nickel solution ih creases the conductivity and causes the anodes to dissolve more freely. That the amount of any metal deposited is dependent upon the number of amperes passing through the solution. Twice the number of amperes will give twice the weight of deposit in a given time. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Erwin S. Perry
Publisher: Forgotten Books
ISBN: 9780267750610
Category : Technology & Engineering
Languages : en
Pages : 484

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Excerpt from The Brass World and Platers' Guide, 1909, Vol. 5: A Journal Devoted to the Art of Refining, Alloying, Casting, Rolling, Founding, and Electroplating of All the Non-Ferrous Metals One of the firmly rooted beliefs in the brass industry has been that copper alloys. While red hot are not affected by quenching in water. This idea undoubtedly originated from the fact that steel. Containing over a certain percentage of carbon. Is hardened by such treatment. As brass and other copper alloys are not sensibly hardened by quenching. It has been assumed that they are not affected or altered in any way. Fig. 1. Test Bars of hot-rolled aluminum-bronze Before and After Quenching. Those with Irregular Fracture are the Quenched Bars. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Erwin S. Sperry
Publisher: Forgotten Books
ISBN: 9780365199786
Category : Technology & Engineering
Languages : en
Pages : 470

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Excerpt from The Brass World and Platers' Guide, Vol. 8: A Journal Devoted to the Art of Refining, Alloying, Casting, Rolling, Founding, and Electroplating of All the Non-Ferrous Metals, 1912 The pressure from the company's mains suffices for all the processes mentioned, but the furnaces may be fitted with air-blast appa ratus for producing higher temperatures. The consumption of gasper furnace in Sheffield ranges up to cubic feet per hour. Sev eral noted firms which were pioneers in gas cooking have lately given attention to the pro duction of furnaces suitable for almost every conceivablerequirement of the metal trades. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: UNKNOWN. AUTHOR
Publisher: Forgotten Books
ISBN: 9781331939252
Category : Technology & Engineering
Languages : en
Pages : 528

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Excerpt from Brass World and Platers' Guide, Vol. 10: A Journal Devoted to the Art of Refining, Alloying, Casting, Rolling, Founding, Electroplating of All the Non-Ferrous Metals Gilding is a gold-colored mixture of copper and zinc and consists of 90% of copper and 10% of zinc. It has a gold color, although not as rich as pure gold or its alloys, of course. It is used when an imitation of gold is required and there are many instances in which it employed such as, for example, in the manufacture of cheap jewelry. Bronze is a gilding mixture with the addition of a little tin and the favorite mixture is 90% copper, 9% zinc and 1% tin. For the majority of purposes, however, the straight gilding answers equally as well and is generally employed. A number of other mixtures of bronze are used, of course, depending upon the use to which they are to be put. Ordinary bronze for rolling, however, is the mixture previously given. Use of Silver Cyanide in Making Silver Plating Solutions. Silver cyanide is now used very extensively for making up silver plating solutions, even more so than formerly, as the majority of silver platers are beginning to appreciate its advantages. The use, therefore, can be said to be increasing. There are three silver compounds that are being employed in making a silver plating solution in conjunction with potassium or sodium cyanide. 1. Silver nitrate. 2. Silver chloride. 3. Silver cyanide. The use of silver nitrate has almost become obsolete although there are a few platers who still use it and obtain good results. It was the first silver salt used that was recommended. Its objection lies in the fact that, when dissolved in cyanide, sodium or potassium nitrate is formed by the reaction which fills the solution with an inert compound. This however, is apparently not directly objectionable as it appears to have no deleterious effect, contrary to the usual opinion, upon the deposit. The real disadvantage is in filling the plating solution with the sodium potassium nitrate which acts as so much foreign matter. As far as the silver chloride is concerned, this is still quite extensively used and by some of the largest manufacturers of silver plated ware. One of the largest, if not the largest has always used it and still employs it. Their work is of the highest grade. The objection to it, however, is that it fills the solution with inert sodium or potassium chlorides when it is dissolved in cyanide. The reason why it has been and is still used, is that it is much easier to make than the silver cyanide. Any solution that contains silver and is acid or neutral in reaction may be precipitated by the addition of common salt or hydrochloric acid and an excess of these precipitants will not redissolve the silver chloride formed. It may be understood, therefore, that silver chloride is the easiest silver compound to prepare. This is particularly true in the case of the large silverware concerns which have stripping solutions, etc., to which it is only necessary to add salt or hydrochloric acid to form the chloride of silver, and it is so easy to make it is not surprising that it was early used as the silver salt for making up a silver plating solution. The advantage of the silver cyanide lies in the fact that, when dissolved in cyanide no inert salt is formed but the double cyanide of potassium or sodium and silver is produced. This gives an ideal solution for silver plating and one which is theoretically correct. The solution may show a lower specific gravity than other solutions made from the chloride or the nitrate and still have more silver in it. This fact means that the solution will remain in good condition longer than the other solutions and will stand "building up" better. The objection to the use of the silver cyanide has been one of making it. To produce the salt a neutral solution of silver nitrate is required and to it is adde

Author: Lewis Carroll
Publisher: The Floating Press
ISBN: 1877527815
Category : Fiction
Languages : en
Pages : 112

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Alice in Wonderland (also known as Alice's Adventures in Wonderland), from 1865, is the peculiar and imaginative tale of a girl who falls down a rabbit-hole into a bizarre world of eccentric and unusual creatures. Lewis Carroll's prominent example of the genre of "literary nonsense" has endured in popularity with its clever way of playing with logic and a narrative structure that has influence generations of fiction writing.