The Bamberg herald. [volume] (Bamberg, S.C.) 1891-1972, 1900-02-15
BROAD TIRES TESTED.

Now that the broad tire bill has
become a law, it may be we'll for our
farmers to inform themselves as to
exactly what effect broad tires will
have on our sandy roads. In a re-
cent circular issued by Clemson Col
Iege, is the result of a series of tests
made on a stretch of sandy road in
tins county. The tests were made
on Senator S. G. Maytields planta-
ton, about one and one-half miles
from Denmark, under the supervis-
ion of Mr.. G.. NJ. Conner, assistant
agriculturalist of the college. The
spot selected was very sandy piece
of road. There was no clay nearer
than two feet of the surface, and
the loose sand was worked up by
travel to the depth of about eight
inches. There are, as is well known,
only two conditions to be found on
a road like this, namely, wet and
dry. So TWO tests were made, one
while the road was dry and one
while it was wet. The report goes
on to say:
When the road is dry the narrow tired
wheel pushes the sand to either side and
sinks until it finds surface firm enough
to bear it up. The dry sand falls back
and fills the track, so that each wheel
must force the sand out of its way every
time it passes along. The broad tire
forces part of the sand to either side
and rolls over part of it. The sand
does not fill the track to the same extent
as that of the narrow tire because the
wheel does not sink as deep and the track
is much broader. But even after the
broad tire has been run in the same track
for number of times, the sand is pushed
forward in the bottom of the track by the
broad tire, thus forming wave sand in
front of each wheel, causing the draft to
be much greater than it would be if the
loose sand could be made firm enough to
prevent this The sand packs better
when wet, but not enough to make any
great difference in the draft.
The first test was made August II, 1899.
The sand was very dry, no rain having
fallen for more than 30 days. There was
loose, dry sand on the surface to the depth
of six or eight inches. The narrow tire
was run in the track made by travel, the
broad tire was run in the same track after
the narrow tire The narrow tire cut in
about eight inches and the broad tire
about three and one-hali inches. The
road was nearly level.
Average draft.
Narrow tire. e..................... QUO IDS.
Broad tire .. ............ ..536
Offence in favor broad tire. ..... SO
Percentage difference in favor of broad
| tire, 1887.
The second test was made October Sd,
1899, two days after heavy rain. The
test was made in the same place as the
one mentioned above, hence the condi-
tions were the same, except that the sand
was wet. The sand did not fall back in
the rut as much as it did when dry. The
narrow tired wheels cut in about seven
inches, the broad tired wheels formed a
rut about three inches deep.
Average drait.
Narrow tire .574 lbs.
Broad tire. .......:.. .....'.'.oe4
Difference in favor of broad tire. 40
Percentage difference in favor of broad
tire, 7.40.
1t will be noticed that the broad tire
pulled lighter than the narrow both on
dry and wet sand, but the difference is
greater on the dry sand. 1t will also be
noticed that there is very little difference
in the draft Of the broad tire on the wet
and dry sand. =
1t has been shown by the Missouri tests
that the broad tire will improve clay
road. In order to see what effect it
would have on the sandy road the broad
tired wagon was run FIVE times in the
same track and then the draft tested.
Average draft.
Broad tire, first run. ..............54 .54 lbs
sixth rum. .472
Difference in favor of sixth run 62 "
Percentage difference in favor of sixth
run, 1918.
This shows that after the road has be-
come level the broad tire passes over it
easier than it does when freshly cut up.
The broad tire had formed a rut about
four inches deep. The depth of the rut
increased very little after the first or Sec
ond run.
The narrow tired wagon was run in the
track made by the broad tire to see what
condition the road was left in for the mar
row tired wagon. The results are as fol-
lows:
Average draft.
Narrow tire, in track of broad tire after
sixth run. .6OI IDS.
Broad tire, sixth run. ..472
Difference in favor of broad tires. 1876 "
Percentage difference in favor of broad
tires, $3.50.
The narrow tire cut down about four
inches in the rut of the broad tire, the
road being packed made the draft heavier
than it was in the loose sand. The above
shows that if broad tires were in general
use load of 2,572 pounds could be hauled
with the same draft required to haul a
load of 1000 pounds on a narrow tired
wagon. One run of the narrow tire was
sufficient to destroy ali trace of the track
made by the broad tire.
500 REWARD, 500.
The readers of this paper will he pleased
to learn that there is at least one dreaded
disease that science has been able to cure
in all it's stages and that is catarrh.
Halls Catarrh Cure ia the only posi-