Poison-Distributor Page: 4 of 6
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UNITED STATES PATENT. OFFICE.
THOMPSON PRESSLY, OF SWEET HOME, TEXAS.
POISON-DISTRIBUTER.
SPECIFICATION forming part of Letters Patent No. 434,357, dated August 12, 1890.
Application filed December 20, 1889, Berial No. 334,417, (No model,)To all whom it may concern:
Be it known that I, THOmPSON PRESSLY
a citizen of the United States, residing at
Sweet Home, in the county of Lavaca and
5 State of Texas, have invented certain new
and useful Improvements in Devices for De-
stroying Cotton-Worms; and I do hereby de-
clare that the following is a full, clear, and
exact description of the invention, which will
to enable others skilled in the art to which it
appertains to make and use the same.
This invention relates to devices for de-
stroying cotton-worms of that class embody-
ing rotatable foraminated cylinders adapted
T5 to contain suitable powder-poison, which is
sifted or dusted therefrom during rotation.
The object of the invention is to provide a
device of this character in which the cylin-
ders are adapted to be both vertically and
20 laterally adjustable with respect to the height
of the cotton and width of the rows.
A further object of the invention is to pro-
vide mechanism for jarring the cylinders,
whereby a more perfect feed of the poison is
25 attained.
A further object of the invention is to pro-
duce a device of this character which pos-
sesses advantages in point of simplicity, in-
expensiveness, durability, and general effi-
30 ciency.
In the drawings, Figure 1 is a perspective
view of a poison-duster embodying my in-
vention. Fig. 2 is a top or plan view. Fig.
3 is a rear end elevation. Fig. 4 is a verti-
35 cal longitudinal sectional view. Fig. 5 is a
detail perspective view of the dusting de-
vice removed from the carriage. Fig. 6 is a
longitudinal sectional view taken through
the cylinder-shaft and cylinders. Fig. 7 is a
40 side elevation of the dusting device, illustrat-
ing the operation of the jarring mechanism,
parts being broken away. Fig. 8 is a detail
perspective view of one of the cylinders or
drums removed.
45 Corresponding parts in the figures are de-
noted by the same letters of reference.
Referring to the drawings, A designates a
rigid transverse beam, to which is pivotally
connected the front ends of two rearwardly-
50 projecting parallel longitudinal beams 13 B.
At or near the rear ends of the latter areprovided bearings c c for an elongated trans-
verse shaft C, said shaft being rectangular
in cross-section.
Upon the shaft C are mounted a series of cyl- 55
inders or drums D, the central one of which,
located between the beams B, is rigidly re-
tained in place by pins E E, engaging perfo-
rations e e, provided transversely through
the shaft C at each side of the cylinder or 6o
drum. The remaining cylinders or drums
are disposed upon the outer portions of the
shaft, and are adjustable thereon to adapt
the cylinders or drums to accord with the
width of the rows of cotton. To permit of 65
the adjustment of these cylinders, the shaft
is provided at each side thereof with a series
of transverse perforations f, one of which
is engaged by-a pin F F to retain the cyl-
inder in adjusted position. I have herein 70
shown the device as provided with three cyl-
inders, though it will be obvious that any de-
sired number may be used.
The cylinders or drums each comprise two
corresponding circular heads d d, provided 75
centrally with rectangular openings d' d',
corresponding to and adapted to receive the
shaft C. The heads d are connected by a se-
ries of cross-pieces d2 d2, embedded therein,
so as to be flush with the periphery of the same. 80
Around the periphery of the cylinders or
drums is secured a wire or loosely-woven
cloth fabric d', completely enveloping the cyl-
inders. A hinged door D' is provided at the
periphery of the cylinders, through which the 85
latter are filled, the door being adapted to be
held in locked position preferably by a turn-
button d4. By reason of the manner of mount-
ing the cylinders upon the shaft it will be
clearly seen that, while the former are capa- 90
ble of adjustment upon the latter, they are at
all times rotated therewith.
In some instances it is necessary to effect a
jarring of the cylinders or drums to secure
a proper feed of poison therefrom. To ac- 95
complish this, I have provided two arms G G,
pivoted at their front ends to the ends of the
beam A and projecting rearwardly therefrom.
The front or bearing ends of these arms are
provided with inwardly-projecting shoulders ioo
g g, which bear against the beams B and re-
tain the arms from contact therewith,
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Pressly, Thompson. Poison-Distributor, patent, August 19, 1890; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172449/m1/4/?rotate=180: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.