Spark-Arrester. Page: 5 of 5
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356,243
mounting the screen, an outer movable shell
conical in form and having the openings sur-
rounding the other shell, and a rock-shaft car-
rying a pinion which meshes with a rack on
5 the movable shell, substantially as described.
3. The combination, with a smoke-stack,
of a screen surrounding the open end thereof
and having a closed upper end, and a rotary
clearing-brush inclosed within the screen, sub-
io stantially as described.
4. The combination, with a smoke-stack, of
a screen surrounding the open end thereof
and having a closed upper end, the central
driving-shaft, a clearing-brush affixed to the
i5 shaft and inclosed within the screen and com-
prising the radial arms and vertically-dis-
posed bars having the bristles, and a wheel
affixed to the shaft for rotating it, substan-
tially as described.
20 5. The combination, with a smoke-stack, of Ia screen having a closed upper end, and a
rotary brush inclosed within the screen and
having the diagonally-disposed bars with the
bristles, substantially as described.
6. The combination, with a smoke-stack, of 25
a rigid conical shell forming an intermediate
chamber, a screen having a closed upper end,
a central shaft, a clearing-brush secured on
the shaft within the screen, a fan-wheel also
affixed on the shaft within the smoke-stack, 30
and a wheel, J', connected detachably to the
upper end of the shaft, substantially as de-
scribed.
In testimony that I claim the foregoing as
my own I have hereto affixed my signature in
presence of two witnesses.
WILLIAM FRANKLIN ELKINS.
Witnesses:
W. D. Cox,
R. C. BATES.
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Elkins, William Franklin. Spark-Arrester., patent, January 18, 1887; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth171444/m1/5/?q=%22%22~1: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.