Safety-Dog Trip for Cotton-Presses. Page: 2 of 3
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UNITED STATESPATENT OFFICE.
JOHN C. WRIGHT, OF SEYMOUR, TEXAS.
SAFETY-DOG TRIP FOR COTTON-PRESSES.Specification of Letters Patent.
Patented Oct. 19, 1909.
Application filed February 20, 1909. Serial No. 479,185.
To all whom it may concern:
Be it known that I, JOHN C. WRIGHT, a
citizen of the United States, residing at Sey-
mour, in the county of Baylor and State of
5 Texas, have invented certain new and useful
Improvements in Safety-Dog Trips for Cot-
ton-Presses, of which the following is a
specification.
My invention relates to new and useful
10 improvements in safety dog trips for cotton
presses.
Press boxes commonly in use are made
double and mounted to revolve, one box
standing under the tamper and the other
15 over the press head. Dogs are arranged in
the sides of the boxes to hold the cotton
during the tamping. These dogs must be
withdrawn when the box is swung around
over the press head, and it has been the
20 practice to withdraw them by hand. If the
operator should forget to unhook the dog
rods and "run" the press head "up" for
tying the bale, he either breaks the hangers
or the rods, making the press useless.
25 It is, therefore, the object of my invention
to provide means for automatically with-
drawing the dogs as the box is swung
around, and preventing not only the above
accident but saving time on the part of the
30 operator.
Finally, the object of my invention is to
provide a device of the character described
that will be strong, durable, simple, efficient
and comparatively inexpensive to construct,
35 also one in which the several parts will not
be liable to get out of working order.
With the above and other objects in view,
my invention has particular relation to cer-
tain novel features of construction and oper-
40 ation, an example of which is described in
the following specification and illustrated
in the accompanying drawings, wherein:
Figure 1 is a plan view, with the boxes in
section, and Fig. 2 is a partial end elevation
45 of the box, showing the trip.
In the drawings the numeral 1 designates
the platform or turn-table on which the
press boxes 2 are mounted and arranged in
the usual manner. On the sides of the boxes
50 crank shafts 3 are mounted in bearing
brackets 4. The shafts are commonly called
" dog rods," as dogs. 5 projecting laterally
through slots 6 in the side walls and. into the
boxes are pivoted thereon. At its outer end
J each shaft is formed with an upward and
outwardly directed arm 7. By swinging thearms outward, the crank shafts are rocked
and the dogs withdrawn, thus permitting
the press head to "run up" and press the
cotton. 60
By returning or swinging the arm in-
ward, the dogs are projected into the box.
It is understood that one box is over the
press head and the other under the tamper.
While the box is under the tamper the dogs 65
are projected inward, as shown at the left
hand side of Fig. 1. The dogs hold the cot-
ton in the box and prevent it from being
carried upward by the tamper. When the
box is over the press head the dogs are with- 70
drawn, as shown at the right hand side of
Fig. 1, for the reasons stated.
For automatically operating the crank
shafts, I mount a bracket 8 on the cross
piece 9 of each end door 10, and at the center 75
thereof. A lever 11 is pivoted centrally at
the outer end of the bracket. Links 12 hav-
ing their inner ends pivoted to the opposite
ends of the lever are pivoted at their outer
ends to the outer ends of bent levers 80
13 centrally pivoted on the ends of cross-
bars 14 extending from the bracket 8. At
their inner ends the levers 13 are bifurcated
as indicated at 15 in Fig. 1, to receive the up-
per ends of the arms 7. It is obvious that 85
by swinging the lever 11, the links are
thrown inward or outward, the bent levers
13 swing and the arms 7 swing and crank
shafts 3 are rocked, thus operating the dog.
For swinging the lever 11, a spring held 90
trip 16 is pivoted on the outer end directly
on the link, so as to project between the
press uprights 17. By observing Fig. 1 it
will be seen that the lever 11 of one box is
swung to withdraw the dogs; while the other 95
is in its normal position to allow the dogs
to project into the box.
A rod 18 is secured at one end to the outer
end of spring held trips 16 and its other end
passes into a hole in the side of the press 10
box 2 to hold the device in place while tamp-
ing the cotton and when the press box is
swung over the press head and spring held
trip 16 strikes press uprights 17 and the
trip 16 is sprung withdrawing dogs 5 from 105
press box 2 the rod 18 is also withdrawn.
What I claim, is:
1. In a. safety dog trip for cotton con-
presses, the combination with a support, of
levers mounted on the support adapted to 110
engage with the dog rods, means for oper-
atig the levers 'simultaneously, and means937,135..
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Wright, John C. Safety-Dog Trip for Cotton-Presses., patent, October 19, 1909; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513607/m1/2/?q=%22%22~1: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.