Spraying and Powder Dusting Attachment Page: 3 of 4
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UNITED STATES PATENT OFFICE.
FRANK OLDHAM, OF DALLAS, TEXAS.SPRAYING AND POWDER-DUSTING ATTACHMENT.
Specification of Letters Patent. Patented Mar. 13, 1917.
Application filed November 23, 1915. Serial No. 63,114.To all whom it may concern:
Be it known that I, FRANK OLDHAM, citi-
zen of the United States, residingat Dallas,
in the county of Dallas and State of Texas,
5 have invented certain new and useful Im-
provements in Spraying and Powder-Dust-
-ing Attachments, of which the following is
a specification.
This invention pertains to new and useful
10 improvements in spraying and dusting at-
tachments for cultivators.
The object of the invention is to provide
means for spraying plants in advance of
dusting them with an insecticide whereby
15 the plants are sufficiently moistened to cause
the insecticide to adhere thereto.
A further object is to arrange the spray-
ing and dusting means as an attachment
which may be readily placed on an ordinary
20 cultivator or other wheel supported frame
and removed when desired.
Among other objects are the provision of
means for vertically adjusting the dusting
means in accordance with the height of the
25 plants; means for adjusting the spraying
device either simultaneously with or inde-
pendently of the dusting means; and a com-
mon driving unit for each set of spraying
and dusting devices.
30 A still further object of the invention is
to provide a device of the character de-
scribed that will be strong, durable, efficient
and simple in construction, also one in which
the several parts of the devices will not be
35 likely to get out of working order.
With the above and other objects in view
the invention has relation to certain novel
features of construction and operation, an
example of which is described in the follow-
40 ing specification and illustrated in the ac-
companying drawings, wherein:
Figure 1 is a partial side elevation of a
cultivator equipped with my spraying and
dusting attachment,
45 Fig. 2 is a front elevation of the same,
Fig. 3 is a plan view of the parts shown
in Fig. 1, and
Fig. 4 is a vertical sectional view of the
dusting hopper and component parts.
60 In the drawings the numeral 1 designates
the frame of an ordinary cultivator, 2 the
tongue, 3 the arch axle and 4, the ground
wheels supporting the axle. Gangs 6 of the
usual type are hinged to the arch-yoke 5
55 which is suspended from the frame. Thedetails of construction of.the cultivator have
not been shown, but merely the main parts
have been illustrated.
In carrying outthe invention.I propose to
use certain elements of the construction 60
shown in the Letters Patent issued to me for
spraying attachment for cultivators on Octo-
ber 12th, 1915, Number 1,156,622, although
the present construction is somewhat dif-
ferent. 65
On each side of the frame 1 a flanged base
plate 7 is mounted and as the construction .
of one side is duplicated on the other side, a
description of one will do for both. An air
compressing cylinder 8 is mounted on the 70
forward end of the plate and is driven by
an eccentric 9 mounted on a drive shaft 10
extending transversely of the frame 1. The
shaft is supported in brackets 11 fastened
on the plates. A sprocket wheel 14 is loosely 75
confined on the end of the shaft and has a
clutch hub which is engaged by a clutch
collar 12 splined on the shaft and shifted by
a lever 13 as shown in detail in the Letters
Patent above referred to. The sprocket 80
wheel 14 is driven by a chain 15 which
passed about a large sprocket 16 attached
to the spokes of the ground wheels 4. The
chain being of the detachable link type may
be quickly shortened or lengthened as is the 85
common practice. If the chain should sag
a common belt tightener (not shown) may
be installed.
From the underside of the plate a hanger
17 depends and has a forwardly extending 90
seat 18. A powder dusting hopper 19 is
mounted to slide vertically on the hanger
and to rest in the seat when in its lowermost
position. A nut 20 is provided for fasten-
ing the hopper in its adjusted position. It 95
is obvious that the plate 7 and hanger 17
may be formed as a unit and bolted on the
frame 1.
The hopper 19 has at its lower portion a
flaring fan casing 21 directed toward the 100
outer side of the cultivator. In this casing
a fan 22 is mounted on a shaft 23 as shown
best in Fig. 4. The shaft 23 is driven by a
sprocket wheel 24 which in turn is driven
by a chain 25 running from a sprocket wheel 105
26 fixed on the shaft 10. Over the fan cas-
ing a rotating dropping plate 27 of suitable
construction is mounted on the bottom of the
powder reservoir and arranged so that when
rotated powder will be dropped into the 1101,218,953.
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Oldham, Frank. Spraying and Powder Dusting Attachment, patent, March 13, 1917; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth858320/m1/3/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.