Improvement in Ground-Squirrel Exterminators. Page: 2 of 2
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UNITED STATES PATENT OFFICE.
HENRY DREYER, OF OAKLAND, TEXAS.
IMPROVEMENT IN GROUND-SQUIRREL EXTERMINATORS.
Specification forming part of Letters Patent No. 192,905, dated July 10, 1877; application filed
February 17, 1877.To all whom it may concern:
Be it known that 1, HENRY DRIEYIr, of
Oakland, in the county of Colorado and State
of Texas, have invented a new and useful Im-
provement in Ground-Squirrel Exterminator,
of which the following is a specification:
Figure 1 is a vertical longitudinal section
of my improved apparatus, taken through the
line x x, Fig. 2. Fig. 2 is a top view of the
same.
Similar letters of reference indicate corre.
spounding parts.
The object of this invention is to furnish an
improvedapparatus by moans of which ground-
squirrels and gophers can be destroyed in
their holes, conveniently and effectively, and
at small expense.
The invention. will first be described in con
nection with the drawing, and then pointed
out in the claim.
A is a board about two and a half feet long
and one and a half feet wide. The board A
is designed to receive the apparatus, and to
its four corners are attached four handles, B,
for convenience in adjusting and carrying it.
To the board A, near one end, is attached a
Root's blower, C, the fans of which are driven
by a band, D, which passes around a pulley,
E, attached to the journal of one of the fan-
shafts. The band D also passes around a
crank-wheel, F, which is pivoted to a bracket,
G, attached to the case of the blower, or to
some other convenient support. The band
and pulleys D E F may be replaced with
toothed gear-wheels, if desired.
H is the discharge or blast pipe of the
blower C, which enters the lower part of the
furnace .L The furnace I is attached to the
upper ends of the legs.J, which are.made of
such a length as to raise the furnace I to a
convenient height, and the lower ends of
which are attached to the board A.
The furnace I is made with an opening in itsbottom, closed with a slide, K, to enable it to
be conveniently cleaned, and, with an opening
in its top, closed with a slide, L, to enable the
fuel and chemicals to be conveniently inserted.
With the upper part of the forward end of
the furnace I is connected the end of a pipe,
I, which is made of such a length that its
lower end may project below the board A, to
enter the hole leading to the nest of the
ground-squirrels or gophers.
To the upper part of the forward end of fur-
nace I is attached a short elbow-pipe, N, pro-
vided with a screw-plug, O, or a faucet or
valve, so that the products of combustion may
be allowed to escape, should the lower end of
the pipe M become clogged with soil, to pre-
vent an explosion. The furnace I is about
eighteen inches long, fourteen inches wide,
and fifteen inches deep, and is capable of hold-
ing about half a bushel.
in using the apparatus a small quantity of
wood, to start the fire, is put into the furnace,
and about fifteen pounds of stove-coal, and
the end of the pipe M is inserted in the hole
leading to the nest of the gophers or ground-
squirrels, and the soil is packed around it.
After the coal is fully kindled, about ten
pounds of sulphur is put in, and the slide L is
closed, so that the action of the fan-blower
will force the fumes through all the branch
passages of the nest, and the whole colony
will be destroyed in a very few minutes.
Having thus described my invention,I claim
as new and desire to secure by Letters Pat-
ent-
An insect-destroyer furnace, provided with
inlet for fuel at top, outlet for refuse at.bot-
tom, and gas-tight slides K L for said inlet
and outlet, as shown and described.
HENRY DREYER.
Witnesses:
DAVID A. CALHOUN,
HENRY J. BSTANK.
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Dreyer, Henry. Improvement in Ground-Squirrel Exterminators., patent, July 10, 1877; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166667/m1/2/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.