Journal of the Franklin Institute, Band 38;Band 68

Pergamon Press, 1859
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. Cf. Index to v. 1-120 of the Journal, p. [415]

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Seite 170 - She is not afraid of the snow for her household: for all her household are clothed with scarlet. She maketh herself coverings of tapestry; her clothing is silk and purple. Her husband is known in the gates, when he sitteth among the elders of the land.
Seite 203 - The Committee on Science and the Arts, constituted by the Franklin Institute of the State of Pennsylvania for the promotion of the Mechanic Arts, to whom was referred for examination, two reflecting telescopes, made by Mr.
Seite 42 - All these considerations impress my mind strongly with the conviction; that insulation and urdimiry conduction cannot be properly separated when we are examining into their nature ; that is, into the general law or laws under which their phenomena are produced. They appear to me to consist in an action of contiguous particles, dependent on the forces developed in electrical excitement : these forces bring the particles into a state of tension or polarity, which constitutes both induction and insulation;...
Seite 206 - Engineering Precedents for Steam Machinery, embracing the Performances of Steamships, Experiments with Propelling Instruments, Condensers, Boilers, etc. ; accompanied by Analyses of the same: the whole being original matter, and arranged in the most practical and useful manner for Engineers.
Seite 142 - The intensity of the blow may be modified instantly by the attendant, so as to suit the work; and the Ram may in like manner be arrested in its descent at any point, so that it is more completely under control than any other form known. 3d, It may be adapted to any description of work, whether for hammering Mourns.
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Seite 206 - RAILWAY MACHINERY ; A Treatise on the Mechanical Engineering of Railways ; embracing the Principles and Construction of Rolling and Fixed Plant, in all departments. Illustrated by a Series of Plates on a large scale, and by numerous Engravings on Wood. By DK CLIBK, Engineer. 2 vols, half-morocco, folio, $24. " This work contains the best published information extant upon locomotives.
Seite 70 - Up to the present time there have been made by the Patentees in England, for that country and the Continent of Europe, between two hundred and fifty and three hundred hammers, for Government, Railway...
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Seite 43 - ... in consequence of the effect of communication which supervenes in the conducting mass upon the polarization of the particles of that body (1675). 1678. That therefore induction can only take place through or across insulators; that induction is insulation, it being the necessary consequence of the state of the particles and the mode in which the influence of electrical forces is transferred or transmitted through or across such insulating media.

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