The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . boards in common use; printerstype, giving a metal that is indestructible as comparedwith the soft alloys in use, and which is equally free fromrust, and that casts readily. From the above it will be seen that aluminum has somany varied valuable qualities that its use is sure to , there is no present prospect of a reductionin the cost of obtaining it. The metal exists in greatplenty. When some cheaper means of releasing it fromthe earth are found it will be in still
The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . boards in common use; printerstype, giving a metal that is indestructible as comparedwith the soft alloys in use, and which is equally free fromrust, and that casts readily. From the above it will be seen that aluminum has somany varied valuable qualities that its use is sure to , there is no present prospect of a reductionin the cost of obtaining it. The metal exists in greatplenty. When some cheaper means of releasing it fromthe earth are found it will be in still greater demand. WIRE NETTING IN GLASS. A Recent Product of American Inventive Genius that is comingrapidly into Use—Description of Various Processes. IIRE-GLASS is the shortened namegiven to the combination of wirenetting and glass that has come intouse within a few years. When thenecessities of the travelling publicobliged railway corporations to buildgreat stations, with wide-arched roofsspanning p( rha[)s a dozen tracks, it was found that theonly practical way of lighting such buildings was to make. 334 WONDERS OF MODERN MECHANISM. the roof largely of glass. As glass panes in a roof have abad habit of occasionally breaking and dropping dangerousfragments, it became necessary to protect the people belowfrom accident, and the companies from suits for damages,bv placing nettings of wire below the glass, thus supportingbroken fragments until such time as it might be convenientto make repairs. This ans\vered tolerably well for a time,but the netting was found to be very perishable when ex-posed to the corroding influence of the gases and smoke thatinvariably rise in a railway station, chemical works, etc.,while in other large buildings where it was so used its lifewas short, and it became almost as much of a nuisance tokeep it in repair as to take care of the broken glass. In September, 1892, Frank Shuman patented a processof making wire glass which has changed all this, and
Size: 1522px × 1642px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectmechanicalengi
