Scientific American, Volume 22, No. 1, January 1, 1870: A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. — John Shaqi
Scientific American, Volume 22, No. 1, January 1, 1870: A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.Various
Science
Scientific American, Volume 22, No. 1, January 1, 1870: A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
Various
Science -- Periodicals; Technology -- Periodicals
That the Legislature of this State has the power to put a stop to these
disgraceful proceedings, is certain; what it will do remains to be
demonstrated.
* * * * *
THE AMERICAN INSTITUTE PRIZES AWARDED TO STEAM ENGINES.
If there is anybody satisfied with the action of the managers of the
American Institute, in the matter of awarding prizes to the competing
engines exhibited at the recent fair, we have yet to meet that
complacent individual. Neither the exhibitors nor the general public
could be expected to accept with equanimity such a report as the
managers have made, because it is inadequate to give any real idea of
the relative merits of the engines tested. The exhibitors, at a large
expense, took their engines to the hall of exhibition, placed them in
position, and with them drove the machinery exhibited there; and now,
when in return they had a right to expect a decided, manly course on the
part of the managers, the oyster is swallowed and the contestants are
each politely handed a shell.
The conditions on which the general test was to be made contained, among
other specifications, these: that "the water supplied to and evaporated
in the boiler will be measured by means of a meter, and the coal burned
may also be weighed."
Only one of the conditions quoted was properly complied with. The coal
was weighed, but though a meter was used to measure the water, tests
made, we are informed, _after the trial of the engines_, showed that
the meter was so inaccurate as to completely invalidate any calculation
based upon its record of the water supplied. Nevertheless this has,
we are credibly informed, been made the basis of calculation; and the
amount of coal consumed during each trial has been rejected either as a
basis of calculation or a check on the inaccuracy of the meter.
Other prescribed regulations were observed with great care. The engines
were indicated in a masterly manner by a gentleman of great experience,
as the cards--tracings of which we have seen--bear ample testimony. The
temperature of the feedwater was 47 degrees; it should, in our opinion,
have been heated, but we waive this point. The state of the barometer
and temperatures of engine room and fire-room were observed; but
we respectfully submit, that with coal consumption left out of the
calculation, and the water consumption an unascertained quantity, the
question of relative economy, the vital point to be settled, is as
uncertain today as it was before the test.
In the _Tribune_ of December 20, appeared a statement of the test to
ascertain the accuracy of the meter used, which showed that in an
aggregate of twelve tests it varied nearly three per cent in its record
from the actual quantity delivered, while at times it was so erratic
that it varied in one instance over _ten per cent_.
Public-domain text, read in full here on John Shaqi.
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