Scientific American Volume 12 Number 22 (May 1865) . w MrnMt Zmxlm. US> admit of easily transforming engines such as thoseused /or agricult ural and other purposes, by the addi-tion of plate board and tender, into small locomotivescapable of running on public roads or streets, formoving every kind of vehicle, for ascending moun-tains however steep, for working agricultural andother implements, and for other purposes. APPARATUS KOIt HEATING STEAM BOILERS. This inventinu consists in communicating the heatto the boiler for raiding steam through the medium ofasubstance which is fluid at the wor
Scientific American Volume 12 Number 22 (May 1865) . w MrnMt Zmxlm. US> admit of easily transforming engines such as thoseused /or agricult ural and other purposes, by the addi-tion of plate board and tender, into small locomotivescapable of running on public roads or streets, formoving every kind of vehicle, for ascending moun-tains however steep, for working agricultural andother implements, and for other purposes. APPARATUS KOIt HEATING STEAM BOILERS. This inventinu consists in communicating the heatto the boiler for raiding steam through the medium ofasubstance which is fluid at the workiug temperature,but which does not readily evaporate or become de-composed, while it is capable of supplying the neces-sary heat without beiug so hot as to injure the boilershell. Lead is a suitable and convenient substancefor the purpose In view, and in carrying out the in-vention the patentee applies that substance betweenthe fire and the boiler proper, putting it in a bathjacket or shell of a form adapted to whatever class ofboiler may be A CURIOUS CLOCK. Some time since there was exhibited at a watch-makers window m Montgomery street, in San Francisco, a clock, iu which, at first sight, there seemed nopossible means of making the -hand revolve. Thedial was a simple plate of transparent glass with asmall, smooth pin in the center, which passedthrough a plain hole in the hand. The clock had butone hand—an hour hand light and slender—and uponthe short end of this was formed a small box of thinmetal. There was uo contact of the hand with thedial except at the pivot, and there was nothing touch-ing the pivot except the baud and the glass in whichit was embeddel, yet the piece kept perlect clock was a mechanical puzzle that attracted aconstant group arovnd the window. We have never received any explanation of the con-struction of this puzzle, but imagine that the workswere in the small box on the short end of the within this box watch-work drive
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectcombina, bookyear1865
