Improvement in Cotton-Presses. Page: 2 of 2
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UNITED STATES PATENT OFFICE.
LARNED S. BEAROE, OF HOUSTON, TEXAS.
IMPROVEMENT IN COTTON-PRESSES,
Specification forming part of Letters Patent No. 169,768, dated November9, 1875; application filed
November 2, 1875.To all whom it may concern:
Be it known that I, LARNED S. BEARCE, of
Houston, Harris county, Texas, have invented
certain new and useful Improvements in
Presses, of which the following is a specifica-
tion:
This invention relates to presses for press-
ing cotton and other substances.
My improvements can best be explained and
understood by reference to the accompanying
drawing, in which-
Figure 1 is a perspective view, and Fig. 2 is
a vertical central section, of a press embody-
ing said improvements.
A is the frame of the press. B is the right-
and-left screw, and a ab b are the two sets of
toggle-arms. The upper arms, at their upper
ends, are hung on a pivot, c, and at their
lower ends are jointed each to a screw-nut, d
or e, owthe screw B. The lower arms, at their
lower ends, are connected by a pivot, f, to a
knuckle-piece, which is connected to the platen
C, as hereinafter described, and at their up-
per ends are jointed each to the nut d or e.
The screw is rotated by a handle, g, or other
suitable ineans. Under this arrangement it
will bie noted that the working parts are
placed in diamond shape, and that they hang
on the upper joint or pivot c. Sliding rods or
bars are employed to prevent the working
parts-that is, the toggle-arms and screw--
from tilting. These rods may bevariouslyar-
rauged. In the present instance they are at-
tached to the knuckle piece or block i of the
lower joint of the toggle, and extend up
through guide-holes in the top of the press.
The lower pivot or jointf is in the kunckle-
piece i, and to this piece i the platen is con-
nected by a ball-and-socket or universal joint,
j, as seen in Fig. 2, which will permit the
platen a tilting movement in any direction in-
dependent of the toggle-levers and screw.Under the arrangement above described of
the toggle-levers and screw, I obtain all the
force and directness of a single screw and the
power of the four levers, and the ball-and-
socket connection between these parts and
the platen renders this arraugement feasible,
since thereby the platen is selfadjusting un-
der pressure, and all injurious strain on the
joints is removed.
It will also be noted as a distinguishing fea-
ture of this arran gement that the toggle-arms,
at the points where they converge in the line
of the pressure, meet, and are hung on one
and the same axis or pivot.
I do not here claim, broadly, a toggle-press
in which the arms are combined with a platen
self-adjustable under pressure,for I have made
that the subject of a separate application; but
What I do claim, and desire to secure by
Letters Patent, is-
1. In a press for pressing cotton and other
substances, the combination, with toggle le-
vers or arms, and a right-and-left screw, ar-
ranged together substantially as described, of
a platen connected with the toggle-arms by a
ball-and-socket or equivalent joint, substan-
tially as and for the purposes set forth.
2. The combination of the toggle levers or
arms and right-and-left screw, arranged to-
gether as described, the sliding guide rods or
bars, and the platen, eonnectdd with the tog-
gle-levers by a ball-and-socket or equivalent
joint, substantially as set forth.
In testimony whereof I have hereunto
signed my name this 2d day of November,
A. D. 1875.
L. S. BEARCE.
Witnesses:
EWELL A. DIOK,
HENRY R. ELLIOTT.
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Bearce, Larned S. Improvement in Cotton-Presses., patent, November 9, 1875; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166495/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.