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Northrop, E. B.; Chittenden, H. A., Jr. (ed.) / The Wisconsin lumberman, devoted to the lumbering interests of the northwest
(July, 1874)

The biggest sawing ever done in the world,   p. 392 PDF (318.6 KB)


Page 392


The Wisconsin Lumberin
THE BIGGEST SAWING EVER DONE IN THE WORLD.
Pros te Bay city, }ch., rnrmse.
The mammoth lumber manufac-
tory of John McGraw & Co., in the
Seventh ward of this city, is famous
the world over.  It is one of the
finest mills in the world, as well as
one of the largest. Its cutting ca-
pacity has been considered to be
about 1, 5,000 feet per day, but on
yesterday more than that amount
was cut in less than three hours. The
occasion was a special test of the
mill, with all the saws put to their
greatest speed for three hours.  Mr.
McGraw made arrangements for the
test some time since, but to avoid the
rush which would inevitably have
occurred had a public announcement
been made of the fact, the matter
was kept rather quiet.  There was a
large number of people present, how-
ever, yesterday afternoon, and at two
o'clock precisely the
JACHINERY WAS STARTED.
At five a stop was made, and it was
ascertained that the mill had cut the
unprecedented amount of one hun-
dred and seventy-nine thousand, seven
hundred andi eighteen feed. Twenty
minutes was lost during the three
hours, which would make the actual
running time but two hours and forty
minutes. The amount cut, named
above, was by the log scale. By the
lumber scale it would be considerable
more, and Mr. McGraw is confident
that the lumber will measure two
hundred thousand feet. An idea of
the extent of the cut may be formed,
when we state there is but one other
mill on the river which can cut such
an amount in an entire day. It isthe
biggest work ever known, and entitles
the mammoth mill of Bay City to
the
CHAMPIoNSHI? OF THE WoRLI.
The cut by hours was as follows:
Feet.
First hour .......           62,707
Secondber .......ho.          ,646
Third hour .......           60,4466
Total .......             179,718
The cut by saws during the three
hours, was as follows:
Feet.
Live gang .................  42,986
No. 1 circular ................ .... AS,542
No. 2 circular .  ................. 80,265
Slabbing and flat ring...................... 57,93a
Total ..................  179,718
AVERAGE TIME.
The time taken to cut a log was
taken, and it was ascertained that
logs averaging 600 feet were passed
through the live gang in an average
time of two minutes each. Logs of
the same size were pased through
the flat gang in one and a half
minutes on the average.
REVOLUTIONS.
The revolutions of the saws were
also taken. The No. 2 circular made
550 revolutions per minute, with a
feed of six and a half inches; No. 1
circular 600 revolutions per minute
The No. 1 circular slabbed for the
flat gang, and the No. 2 circular saw-
ed complete. There are two circulars
and two gangs in the mill.
AN ARMY OF TEAMS.
Running twelve hours per day the
mill would cut, at the rate at which
it slashed out lumber yesterday, 720,-
000 feet in twelve hours. This would
load two ordinary vessels, and if
loaded on double wagons, 720 would
be required to transport the day's cut,
thereby forming a procession of teams
and wagons four and one-half miles
in length.
TEE LARGJET ON RECORD.
The biggest sawing on record pre-
vious to yesterday, was 400,000 feet
in twelve hours. McGraw's mill
beat the ratio of that work per hour
by about 50 per cent.
Examine the "Lumbermen's Reg-
ister" at the end of this volume and
report additions or corrections to the
WIsCoNsIN LUN RRMEN PUBLISHING Co.,
6t Oneida street, Milwaukee, Wis.
392


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