. Hardware merchandising 1895 . m atthe centre of the crank, with one arm fromthere to the roller stud and the other armfrom the fulcrum to the pedal. It is claim-ed for this wheel that its rate of speed iseasily one mile a minute. COST OF INCANDESCENT LAMPS. A German paper gives the following as thenet cost of manufacture of electric incandes-cent lamps in Germany : Globe, ;platinum, ; filament, ; cementand attachment, ; glass neck andvacuum tube, ; total, ; workingthe filament, o 24c!.; conductors, o. 12d.; fix-ing filament on conductors, ; prepar-ing
. Hardware merchandising 1895 . m atthe centre of the crank, with one arm fromthere to the roller stud and the other armfrom the fulcrum to the pedal. It is claim-ed for this wheel that its rate of speed iseasily one mile a minute. COST OF INCANDESCENT LAMPS. A German paper gives the following as thenet cost of manufacture of electric incandes-cent lamps in Germany : Globe, ;platinum, ; filament, ; cementand attachment, ; glass neck andvacuum tube, ; total, ; workingthe filament, o 24c!.; conductors, o. 12d.; fix-ing filament on conductors, ; prepar-ing for vacuum, ; vacuum, ; pho-tometry, ; fixing neck and soldering,; cleaning and testing, ; total,i-5d.; general expenses, ; current,; gas, ; total, o 54d.; total cost perlamp, ;d., to which add 10 per cent, forbreakages, making ^d. per lamp. Thecost of packing and that of heating andlighting the works, together with the intereston capital, bring this up to per Champion Fire andBurglar-Proof Safes . Made with Solid Welded An-gle Iron Frame, Iron InsideDoors; 1,000,000 ChangesCombination Lock. Twelveyears trial have proven themthe Best. Fifteen sizes instock. Write for our PriceList. S. S. KIMBALL577 Craig St., Montreal,
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Keywords: ., bookcentury1800, booksubjectbu, booksubjectimplementsutensilsetc
