Burlington free press. [volume] (Burlington, Vt.) 1827-1865, 1861-02-22
TRENCHES PATENT SINGLE MA
CHINE

The days when Shingles were labOriousiy
split from the block by hand have gone by,
except in those primitive regions, as yet IN
invaded by the genus Of machinery. where
they still do all their m~twingwith the scythe,
and all their threshing with the fail, and all
theiT weaving with the hand loom, and ali
their sewing with the old needle.
Machine-cut Shingles are fast driving al
others from ali markets, and the manufacture
Of them is al important and extensive branch
Of industry. OF course, other things being
equal, the Machine which, with a given
amount Of attendance. viii cut most Shingles
in z given time, is the best Machine,-and
tha, machine, a. at present advised, We be-
lleve to be, beyond question, one recently pa
tented by Mr.. A.FFRESCH, OF Franklin, Vt,
the first working specimen Of which has just
been completed at the Machine Shop Of Ed
WARDS & STEVENS, Winooski, where we had
the pleasure Of examining it 4 day = two
since.
This original Machine w Isa.al the
observer who has e7ar seen ,hem,at once, Of
Hoes Typ Revolving Lightning Presses, by
which -, G00 saects an hour are thrown of
f-oin tire f.-m. which before that wonderful
invention, could crly be made to print g
tenth Of that numbsr-and It secures Iz a.
touishing results by a. adoption q lie SINE
rotary principle.
To 2 cylindrical revolving fr4mo. about )
feet in diameter, are fastened al equal dis
tances from each other In ad justable bearings,
the arbcrs of four circular saws. These saws
are about Is inches in diameter, and revolye
in the same plane with the frame 10 which
they are attached. 4 drum inside of the
revolving frame, and concentric with it,
driven by a shaft (Which Is also the axle Of
the frame) communicates a very rapid motion
to the avs by means Of an Ingenious arrang-
ment Of bclts, by which all the saws run at
an uniform speed, and. as all are belted to-
gether, the saw which for the time being is
doing the work, has the aid Of the momentum
of the other three. \ belt from the centre
shaft gives motion to a pinion and gearing
from which the revolving frame receives a
rotary motion varied at will by cone pulleys,
Of from / OF ) TO 10 turns q minute. The saws.
il viii be seen, have a double rotary motion,
one very rapid on their Own axes, and the
other a comparatively slow motion around
he centre shaft. The block from which the
are to be cutis fastened to a carriage
by a simple continuance, is fed forward
BY bitches, in such d way that each saw, as
Il passes cuts from the block q single. The
DOCK i @lways presented at o small angle to
pane Oh the saw, thus giving the proper
slope or bevel to the single. and each cpt
the one before it ,witbout Lose -.
or momentum.
l. "a V remains tor US to speak of respl+s
OF course each revolution Of the machine
gives : shingles, and ten revolutions min
ute is 1t the rate of 2,40O shingles an hour.
increased speed will give still greater re-
suits, which, n fact, are limited only BY the
of iron and steel to sustain the
of motion. The inventor is conf
lent that with a properly constructed Ma
,hine, and under the mes: favorable circum-
Itances, four thousand shingles can be cut
n an hour, AID he is ready to anorrant his
Machine to deiiy-- tursnty thousand 2 day as
IS regular working rate with
single attendant. We believe 10
Machine has been able to average over
alf that quantity per day. 1t is only ne-
assary to add that the shingles cut by the
50 far as we have seen, are decided
smoother and hapdsomer than other
achine-cut shingles. !
The Inventor and soie Proprietor Of this
Machine is Mr. Aaron L. French of
Vt, 70 whom applications for rights
lcc.- !