Spark-Arrester. Page: 3 of 5
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UNITED STATES PATENT OFFICE.
WILLIAM FRANKLIN ELKINS, OF COMA CHE, TEXAS.
SPARK-ARRESTER.
SPECIFICATION forming part of Letters Patent No. 356,243, dated January 18, 1887.
Application filed September 23, 1886. Serial No. 214,399. (No model.)To all wheion it 7may concern:
Be it known that I, WILLIAM FRANKLIN
ELKINs, a citizen of the United States, resid-
ing at Comanche, in the county of Comanche
5 and State of Texas, have invented a new and
useful Improvement in Spark Arresters and
Extinguishers, of which the following is a
specification.
My invention relates to improvements in
:o spark arresters and extinguishers; and it con-
sists of the peculiar combination and novel
construction and arrangement of the various
parts for service, substantially as hereinafter
fully described, and particularly pointed out
i5 in the claims.
The object of my invention is to provide
improved means for effectually preventing the
escape of sparks from a locomotive or station-
ary engine of any class, to obviate the danger
2o of the "live" sparks from setting fire to sur-
rounding objects.
A further object of my invention is to pro-
vide improved means to prevent the accumu-
lation of sparks in the sieve from clogging up
25 the same, to thus secure a free passage for the
smoke and other gaseous products of combus-
tion, to provide improved means for empty-
ing the compartments or receptacles for the
sparks of their contents with' ease and rapid-
30 ity, and to provide means which shall utilize
the current generated by the escaping heat
and smoke through the smoke-stack to be ro-
tated thereby, and thus actuate the clearing-
brush,or which shall be driven, together with
35 the clearing-brush,by an independent device,
to create increased draft in the said stack and
thus promote the combustion of the engine.
In the accompanying drawings, which illus-
trate a spark-arrester embodying my inven-
40 tion, Figure 1 is a side elevation. Fig. 2 is a
vertical central sectional view on the line x x
of Fig. 3. Fig. 3 is ahorizontal sectional view
on the line y y of Fig. 1. Fig. 4 is a detail
view of the upper portion of the smoke-stack,
45 with the screen or sieve removed. Fig. 5 is a
detached detail view of the clearing-brush.
Fig. 6 is a modified form of the brush. Fig.
7 is a detail view of the wind-wheel to rotate
the clearing-brush and fan.
5o Referring to the drawings, in which like let-
ters of reference denote corresponding partsin all the figures, A designates thesmoke-stack
of a locomotive or stationary engine of any
class, to which my improved spark-arrester is
applied. To the upper end of the smoke- 55
stack I affix an outer shell, B, which incloses
the said upper end of the smoke-stack and is
arranged concentric therewith. This outer
shell is made in the form of a frustum of a
cone, and it is inverted, so that its widest end 6o
is uppermost, and the edges thereof lie flush
with the upper edges of the stack. The lower
edges of the contracted end of the inverted
cone-shaped shell are secured to the smoke-
stack in any suitable or preferred manner, and 65
by thus disposing and securing the outer shell
I provide a chamber or compartment, C, for
the cinders and ashes which ascend through
the smokestack, and are deflected downward
by the means hereinafter described and fall 70
into the compartment C.
The compartment Cissubdivided, by means
of vertical partitions c, into a number of smaller
compartments, and the outer conical shell has
a series of openings, c', one of which commu- 75
nicates with each of the sub-compartments of
the compartment C, so that an independent or
separate discharge-opening is provided for
each sub-chamber for the cinders, sparks, and
other matter which may accumulate therein. 80o
D designates a sliding shell, which is also
made cone-shaped and inverted, and this slid-
ing shell has a series of openings, d,which are
equal in number to the discharge-openings in
the shell C, the openings of the shell D being 85
adapted to coincide with the openings in the
rigid shell C to permit the sparks, cinders, &c.,
to be discharged from the compartments dur-
ing one position of the said sliding shell, and
at the endof the sliding movementof the shell 90
D, the openings in the shells are adjusted or
thrown out of coincidence to prevent the es-
cape of the sparks, &c. The sliding conical
shell D is arranged exterior to and incloses the
rigid shell, and the lower edges of the mov- 95
able shell D rest upon a collar or way, D', that
is rigidly secured to the smoke-stack.
The movable shell is operated by the engi-
neer, standing on the ground or other place,
by turning a crank or other suitable device, e, Ico
on the lower end of a verticalrock-shaft, E,
that is supported in suitable guides or bear-
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Elkins, William Franklin. Spark-Arrester., patent, January 18, 1887; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth171444/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.