The daily news., 1900-04-18
CARVING BY MACHINERY.
elaborate EesfSns ChiscIed In stone
With a Pceumatic Tool.

Elaborate Designs ChiseIed In stone
with Pneumatic Tool.
Mr.. Charles Earuard IN a compre-
hensivc article in The Century on The
Industrial Revolution Of the Power
Tool" gives this picture Of the work.
not yet fully completed. on the new
appellate courthouse. Madison square,
New YORK city:
The maIOlC carver can for 4 short
time give 90 blows 4 minute With his
wooden mallet on his chiSeL His av-
erace speed is probably less. With n
pneumatic hammer he can strike POO,
2,0OO. 1900 or 5000 blows in one min
ute without the slightest cxcrtion on
his part. He can regulate the number
Of blows in each minute at VIII His
flying hammer l;s any form OF chisel
used iu his art. IL viii enable him 10
do any work he can do Icy hand and
many things that would be impossible
without his nervous little hammer.
His hand. eye and mind are now free to
give their whole attention and skill to
guiding the chiscl. All the labor Zone
half OF the total labor Of striking the
blow on the chisel is released. Just
that amount Of mental and physical
energy is released to work in the real
ART which is the guiding Of the tool
AN example Of the economy thus
afforded is found in the elaborate ex-
terror decorations of the appellate
court lately erected in Madison square.
New York city. The building is Of
steel frame. with white marble facing.
As required 10y law, a massive timber
stage. or platform. was erected over
the sidewalks. and on this the stone.
bricks, steel beams and other material
were deposited while being prepared
for the steam derrick that lifted each
piece into place. The blocks Of marble
arrived already squared. shaped and
fitted. so that the work Of the builder
consisted merely in putting them in
place in the wall. All the blocks that
were 10 be- decorated. capitals. lintclS.
panels. sides of windows IN fact. every
block that was TO carry any part of
the ornamental work was left rough
and was sea in the wall just as it came
from the marble yard.
'As tie walls were erected a wooden
staging was placed before them for the
convenience of Tie marble workers.
on the platforrn stood q small shed.
sbel;ering a - horsepower G2s engine
operating an air compressor. From
the compressor wrought iron pipes cX-
tended all over the staging At inter
which rubIcr hose could bc easily at
1achcd. Here yre have the distribution
81 power clearly illustrated. The gas
engine using street GAS has a distinct
advantage over the steam engine. as its
feel IS brought in a pipe instead of 4
cart. aud il has no aShCS TO annoy the
passer below. In fact. were il not for
the barking Of its exhaust pipe one
would never imagine that power
plant WAS ~ work overhead
al cuy time i marble workers were
employed uu IA, h-.;ln-. Each one
had bvAitr L.m plaster copy of the |
decoration hc WIS 90 rcpgOdarc in the /
marble. His l-ht s.,cl hammer with |
SIS swiftly Gg.u- ,hi~cl cat the ma~lic /
asily. surely. evenly. Rose anI leaf. |
curviu- Nuc. fuUi-- irl"cry AMI flow I
orinc cap''al grew rs .f ly magic Un- !
der hiS hand The beautiful forms of F!
the pattern. ur wuiel appeared wi,h /
incredible speed Iuc chips few in a |
fue shower 81 Uhite dust under the 4
lichtniuEIihc hammer. The long. acNi- 4
llc hose -najl,3 the Workman 10 stand /
in any ua~.tlan arul ho.d the tool At any
angie. aut it> iirclcS> energy relieved I
him from c.e:v'h.u- except the skilled .
work ~ .-uii.-- ;F.. tools. He could (.
stop in aa instant aul change the tool .
"a less IIan = minute The workman
is no longer a >','Iicd lahorCr: he * an +.
artisan. with n new tool that relieves
him from all lahor."