The workingman's advocate. [volume] (Chicago [Ill.]) 1864-1877, 1870-03-05
TO BR CONTINUED.
SCIENTIFIC.

SCIEHTIFIC.
I FLOATING TELkGRAPH-srATIONs
is proposed to establish on our coast
floating electric telegraph-stations ,sin.i
lar to the one now in construction in
England, and intended for use sixty
miles off Penzance
TALL CHINNEYa-A wroaght.iron
chimney lS6 feet high and six feet
seven inches in diameter, has Just been
erected in Pittsburg. Another is 70 be
put up 275 feet high. The FIRST was RI
veted together IN horizontal position,
and then lifted to the perpendicular
by a crane. The other will be made
upright; the plates will be riveted by
means of scsffolding running UP in
side.
CATTLE FED BY CLoCKwORK.-A
Iabor-saving Yankee in North Haven,
Conn.,, has rugged up in his barn some
hoppers having drop-bottoms, in which
he places the provender for his cattle,
and has attached clock thereto. By
this means the animals may all be fed at
once, at any desired hour he sets the
clock accordingly, and gives himself
no further trouble
NAn MACHINE FOR ENGLAND.-Tbe
Boston Commercial Bulletin says -" It
is compliment to Pittsburg manufao-
turers, Of which they may well be
proud, that Totten & Co, of the Full
ton Foundry, in that city, have received
an order from England for a nail ma
chine-the first order Of the kind ever
sent to this country. The same firm are
corresponding with parties in Holland
with reference to similar orders"
ACrIoN OF COMPRESSED AIR TN FRoNr
OF PRoJEcTILHs.-Some papers on this
subject have recently come before the
French Academy; and on the occasion
Of M. DeIaunay remarking on bolides
@rolites, General NORM observed that
artillcrists found that in firing over a
level near the ground, the dust was
raised right and left by the compressed
air acted on by the ball Ancien,
cannoneers, he said, spoke Of valleys ~
attracting balls, because in such itua-
tions the compressed air afforded the
greatest obstacle to their passage. In
firing along horizontal wall, and near
it, balls deviated, so that if the wal
was at The right, the balls went to the
left, and rice ceysa.
\ "A WONDERFUL % ELEcTRIcAL AP,
PARATUs.-New York City daily gives
a lengthy description Of an electric en-.
gine, the essential features of which are
thus lucidly set forth -" An ordinary
galvanic battery is used and the poles
of the battery-cups are connected with
a powerful magnet, and the increa sed
electrial power is then transmitted tc
the electrial engine. The magnet il
first formed by taking an even-grained
piece OF horseshoe wire, and turning
it down to the required proportions
The iron is bent into the shape of the
letter U and then passes into the hands
of the inventor, who treats it to series
of bakings in various temperatures
the process being q secret. From two
TO three weeks are required for thi.
tempering process" After this the
magnet is smoothed up, and made
: ready for connection with the battery
1t is further stated that the residence
of the inventor was of late burglarious
ly entered and his baked magnet
carried off. +" He is of opinion ths
other parties interested in developing
J electricity as motive power were un
8 scrupulously anxious to avail them
e selves of his labor and secret"
The Cooperative Fire Insurance Assc
citation of the German Csbinetmakers Q
New York, has just issued its annual report
from which it appears that the Organizatio
3 numbers 776 members, whose tools hav
! been insured for the sum Of &57 ,465. Th
payments ut the rate of per cent, anOun
o ed to s4,O24.65. During the Past 81
9 months 83 members were admitted, an
e their tools insured for the sum Of $6. .1S(
u The payments for them at the rate Of seve
Is per cent, amounted 10 $429.lO. Durin
y the last half year one per cent. was cOllecte
q in addition, amounting $456.15. Fl
! losses and back pay ments to families Of d
y ceased, t625 xsss paid- The aasssts Of d
ai association amount TO e4,474.0O; wit
ID S-27 Is on hand for current exn< n Ns