Railway Locomotives and Cars, Band 7

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Simmons-Boardman Publishing Corporation, 1838
 

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Seite 311 - Having thus described the nature of my invention, and the manner of carrying the same into effect, I would have it understood that I do not...
Seite 311 - Now know ye, that, in compliance with the said proviso, I, the said Charles Tetley, do hereby declare that the nature of my said invention, and the manner in which...
Seite 349 - ... annular or internal wheels. The simplicity of this above the old system is obvious, for on the old every epicycloid requires two circular templets ; also there must be as many templets as pitch circles in the set, whereas on this system but one describing templet is required. For machinery in which the wheels move constantly in the same direction, the strength of the teeth may be nearly doubled for the same quantity of material, by disposing it so that the backs are an involute or the arc of...
Seite 86 - Chancery expenses, &c 73,234 00 Total cost of completing the works, except the iron pipes for conducting the water through the streets of the city $8,464,033 00 It therefore appears that a sum of about $6,000,000 will be required for this object, in addition to the $2,500,000, authorized by the " Act to provide for supplying the City of New-York with pure and wholesome water.
Seite 315 - I hereby claim as my invention, the said process or method of manufacturing shear steel; and such my invention, being to the best of my knowledge and belief, entirely new, and never before used within that part of his said majesty's United Kingdom of Great Britain and Ireland, called England, his said dominion of Wales or Town of Berwick upon Tweed.
Seite 61 - This decay is entirely obviated by inserting the wood in an iron shoe, or by placing a thin piece of iron betwixt the wood and the stone. Several cases were mentioned in which the iron shoe had been found a complete protection against dry rot and decay ; a hard crust is formed on the timber in contact with the iron, which seems effectually to preserve it.
Seite 303 - ... substitution for any of the usual forms of manufactured iron. As my experiments have necessarily been limited in regard to time, I cannot speak with certainty as to effects which may possibly ensue from the protracted action of chemical agents upon the zinced iron; but both theory and experience lead me to believe that so long as the zinc endures, the protection will hold good. Again, speaking theoretically, I should presume that the zinced plate, or the other forms of the protected iron, would...
Seite 18 - ... suit every case. The proportions must be determined by experiment; but in no case should the quantity of sand be less than double that of the lime. The best mode of compounding the concrete is to thoroughly mix the lime, previously ground, with the ballast in a dry state; sufficient water being then thrown over it to effect a perfect mixture, it should be turned over at least twice with shovels, and then wheeled away instantly for use. In some cases, where a great quantity of concrete has to...
Seite 305 - Pistrucci's method, they have been produced in less than fifteen days ! There is an exquisite softness, and a boldness of relief, in many parts of this seal not attainable in an engraved die ; the graceful flowing of the drapery, the prominence of the arm of her Majesty, as well as the ear and hoofs of the horse, are altogether unrivalled. The fame of Signor Pistrucci's success has drawn to the Mint, most of those who are celebrated for their practical acquaintance with the powers and properties...
Seite 67 - I now therefore state, that I do not claim the exclusive use of any one of the five apparatus herein described, taken separately, some of them, if not all, having been used before ; nor indeed do I claim the...

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