. A practical description of Herron's patent trellis railway structure ... also, the patent wrought iron railway chairs, new and improved mode of joining the ends of railway bars, scarfing timbers, and improved fastenings: illustrated by four large plates of working plans ... with a compendious account of the process of kyanizing, in use on the English railways, for preserving the timber from decay: and the recent discoveries of M. Boucherie by means of the pyrolignite of iron .. . itri/ fy ./ Yeatjfr il Fi. r/a/e Jr. »!:»4 pi H SIRIK.®!^ Mi m ^t m f ,1 *^F ->^ ieag&r PRACTICAL DESCRIPTION
. A practical description of Herron's patent trellis railway structure ... also, the patent wrought iron railway chairs, new and improved mode of joining the ends of railway bars, scarfing timbers, and improved fastenings: illustrated by four large plates of working plans ... with a compendious account of the process of kyanizing, in use on the English railways, for preserving the timber from decay: and the recent discoveries of M. Boucherie by means of the pyrolignite of iron .. . itri/ fy ./ Yeatjfr il Fi. r/a/e Jr. »!:»4 pi H SIRIK.®!^ Mi m ^t m f ,1 *^F ->^ ieag&r PRACTICAL DESCRIPTION OF H E R R O N ^ S PATENT TRELLIS RAILWAY STRUCTURE, EMBRACING THE MOST APPROVED MODIFICATIONS; ALSO, THE PATENT WROUGHT IRON RAILWAY CHAIRS, NEW AND IMPROVED MODE OF JOININGTHE ENDS OF RAILWAY BARS, SCARFING TIMBERS, AND IMPROVED FASTENINGS: ILLUSTRATED BY FOUR LARGE PLATES OF WORKING PLANS, ACCOMPANIED BY EIGHTEEN ACCURATE WITH A COMPENDIOUS ACCOUNT OF THE PROCESS OF KYANIZING, IN USE ON THE ENGLISH RAILWAYS,FOR PRESERVING THE TIMBER FROM DECAY: AND THE REGENT DISCOVERIES OF M. BOUCHERIE BY MEANS OF THE PYROLIGNITE OF IRON. PRECEDED BY PRACTICAL OBSERVATIONS ON THE DEFECTIVE NATURE OP THE RAILWAY STRUCTURES IN USE ; WITH ANINVESTIGATION OF THE PRINCIPLES AND STRUCTURE ESSENTIAL TO THE STABILITY AND,, PERMANENCE OF RAILWAYS, IN WHICH THE OPINIONS OF MEN EMINENT IN SCIENCE AND ENGINEERING ARE COLLATED, /j . BY JAMES HEREON. ^ -f ^ ^ CIVIL The author of a discovery has always to contend with those whose interests it may affect, with the obstinate partisans ijealous and the envious. Tliese classes combined, form, we are obliged to confess, the greater part of the public. This compact mass of opponents,time alone can separate and destroy; but time is not enough, they must be attacked boldly, they must be attacked without ceasing; the means of actionmust be varied, imitating the chemist, who is taught by experience, that the entire dissolution of ce
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Keywords: ., bo, bookcentury1800, bookdecade1840, bookidpracticaldescrip00herr
