The daily union. [volume] (Washington [D.C.]) 1845-1857, 1857-04-07
For tho UNION
SCIENCE, ART, AND MECHANICS.

PRoDuCrIoS OF sTREL--Dr. G.. ii. Smith CT Rochester
New York. is the inventor OF cheap process for the pro-
ducon fseel He obtains by process mot descrbed)
from pure oxide Of iron, and the Sharon Iron Works in
Penpsy making steel by this method. is
SAID to show finer fracture than lister STEEL and
than that Of the steel used for tools and be made at
about the price of common wrought.iron Chenots inn
ovement in the manufacture of STEEL which received the
medal at the Paris exhibition appears to have been success
fully put into practical operation at Paris An establish
ment in the vicinity of that city is now producing consid
cradle quantities of steel by the process said to be supe
ror quality. is manufactured direct from the iron
at onehird the present ccst The plan consists far
disclosed in the separating of the crushed ore by cleo
c force the union Of carbon and other matter by cold
proces-n dEeoot proportions according to the quali-
of steel desired and the compression of the before
melting the steel 10 in this way produced from the ore in
ten days while by other methods forty days the time
QUred.
CoA-BURyISa BsslsR--A new coal-burning passenger
engine has been constructed for the Lackawanna and
boomsburg railroad II is intended to burn either
mracte or bumnous COAL and the boiler Is constructed
on the new and improved principle known as Phegcrs
Patent By this arrangement all the gases and smoke
from the furnace are consumed and there is aso ad be
slarge saving in fuel.
USEFUL APPLICATION OF lspIA-RC=DRR "A new inven-
lion, of much practical utility and combining safety with
economy Is the Inda-rubber lamp for burning fluid The
uober applied permanent lining for metal glass
lamps, securing entire safety against breakage and being
surrounded by archamber which keeps the fluid COOL
prevents it from volatzing rapidly and thus causes it
burn from forty hy per cent longer than in the or
unary lamps. The rubberbag receptacle for the fluid,
cannot possibly be exploded burst because OF its quail
Tor expansion, and improved cap attached to this
lamp prevents all danger from the usual mode Of Sling, or
'he communication Of fame
Az ELEGANT ARr.-Priuts Of flowers plants, and other
similar objects be obtained in perfection by the follow
lag mode Of operating The original being passed between
"copper" plate and lead plate through two rollers closely
screwed together its image, by of the pressure, is
m with all its peculiar delicacit the lead plate II
ne colors are applied TO this stamped lead plate, as in
pruning on cofperPate copy In the most varying hues,
aud bearing striking resemblance to the original To
obtained ia large number OF copies required which
INC lead FORM account of its softness is incapable Of
furnishing ii s eereotyped, If intended to be printed at
typographical press galvanized il ct copper-pate
press and the Impressions then taken from the stcreo
typed or galvanized plate
Can SEATS NEW PBAs--Mr. 7. T. Woodruff, Of Alton,
nois has made valuable improvements in railroad
r seats The FIRST OF thss consists in having instead Of
e seats those that be converted into ulength
horizontal ceuches that each passenger can have at his