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Light railways
&ems and Novelties.
7
A wooden railway, four feet eight and oneLight Railways*,half inch gauge, is being constructed in the province of Qtiebec, Canada. The rails are of maple, four by seven inches, and fourteen feet long ; the ties are of hemlock and tamarac. The cost of the line, thirty miles long, including nine stations, c&r and locomotive depot, engine and repairing shops, engine and tender, two passengers cars, eight grain cars and twenty-five wood cars, is $5,000 a mile, including all damages. An experimental trip has been made on tbe completed portion of the road, the train going at the rate of twenty-five miles an hour and with rcmnrkable smoothness.
Improvement in Stub-ends, --The above cut represents the stub end as designed by Mr. Jobn Fritz, for the large’engines he is making for the Bcssimer plant of the Bethlehem Iron Co., at their works at Bethlehem, I%. The cut explains itself. It may be observed that the gibs used in each side of the key, arc made with heads which project side-ways as well as end-ways, and the washers and nuts at the lower end of gibs also cover as much surface on the strap as do the heads. The gibs arc, in fact, through bolts, and while they answer the purpose for which they are required, they serve to bind the strap firmly to the stub end, and prevent the loosenesss from wear consequent upon the use of gibs as ordina.rily made. This practice of Mr. Fritz, seems to have all tbc merit of the through bolts as used by locomotive engineers, :lnd tbc gib and key as used on stationary engines. COLEMAN SELLERS. A Hard Cement.---l’hc Abbe MoignoJf relates a circumstance which may contain a valuable hint in relation to the use of cement. A workman employed to repair the steps leading to a garden, made use of Portland cement mixed with finely divided cast and wrought *Technolo#t, Dec.. 1871. t Les Mondes.
7
A wooden railway, four feet eight and oneLight Railways*,half inch gauge, is being constructed in the province of Qtiebec, Canada. The rails are of maple, four by seven inches, and fourteen feet long ; the ties are of hemlock and tamarac. The cost of the line, thirty miles long, including nine stations, c&r and locomotive depot, engine and repairing shops, engine and tender, two passengers cars, eight grain cars and twenty-five wood cars, is $5,000 a mile, including all damages. An experimental trip has been made on tbe completed portion of the road, the train going at the rate of twenty-five miles an hour and with rcmnrkable smoothness.
Improvement in Stub-ends, --The above cut represents the stub end as designed by Mr. Jobn Fritz, for the large’engines he is making for the Bcssimer plant of the Bethlehem Iron Co., at their works at Bethlehem, I%. The cut explains itself. It may be observed that the gibs used in each side of the key, arc made with heads which project side-ways as well as end-ways, and the washers and nuts at the lower end of gibs also cover as much surface on the strap as do the heads. The gibs arc, in fact, through bolts, and while they answer the purpose for which they are required, they serve to bind the strap firmly to the stub end, and prevent the loosenesss from wear consequent upon the use of gibs as ordina.rily made. This practice of Mr. Fritz, seems to have all tbc merit of the through bolts as used by locomotive engineers, :lnd tbc gib and key as used on stationary engines. COLEMAN SELLERS. A Hard Cement.---l’hc Abbe MoignoJf relates a circumstance which may contain a valuable hint in relation to the use of cement. A workman employed to repair the steps leading to a garden, made use of Portland cement mixed with finely divided cast and wrought *Technolo#t, Dec.. 1871. t Les Mondes.