Improvment in Cotton-Presses. Page: 2 of 3
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UNITED STATES PATENT OFFICE
THOMAS IHi, McCRAY, OF TELLICO, TEXAS.
IMPROVEMENT IN COTTON-PRESSES.
Specification forming part of Letters Patent No. 27, 519, dated March 13, 18CO.
To cell zlwhoz it ;2ay coincerlL: against the sides of the bale-boxes and rolling
Be it known that I, TnomrAs HI. AMcCRAY, up and matting of the substance (especiallyof
of Tellico, in the county of Ellis and State of cotton) as there is with the old arrangement3
Texas, have invented a new and Improved in which the point of principal compression is
Press for Pressing Cotton, Hay, Tobacco, and at the end of the followers, and consequently
other Similar Materials; and I do hereby de- in continual motion. At the same time there
dare that the following is a full and exact is but little, if any, more weight to be moved
description thereof, reference being had to the in this than in the other arrangement, since
accompanying drawings, making part of this the principal mass of material here is at the
specification- stationary compressing - point, while in the
Figure 1 being a plan of the machine; Fig. other arrangement themain mass moves along.
2, a vertical section of a portion thereof in the There is also here an advantage in greater
plane indicated by the line x x, Fig. 1; Fig. steadiness and freedom from friction and less
3, a vertical section of a portion thereof in the complication than in presses wherein the fol-
plane indicated by the line y y, Fig. 1. lower has to be securely guided to keep it in
Like letters designate corresponding parts place and in a straightforward direction.
in all the figures. The bale-boxes are actuated in the following
Suitable bed-pieces, A A, are secured to- manner: In the center of the frame A is lo-
gether in the form of a cross, on the four arms cated a simple vertical shaft, G, to be turned
of which are respectively mounted four bale- bya sweep, H, or otherwise. A rope or chain,
boxes, B B and C C, substantially as repre- I, winds around this shaft, and its ends are
sented in the drawings. The bale-boxes, in- attached, by hooksff thereon, (or otherwise,)
stead of being stationary, as in ordinary to staples Ih h (or their equivalents) on, the in-
presses, are arranged so as to slide forward ner ends of two opposite heads, D D, of the
and backward on the arms A A, and station- bale-boxes, as seen in Fig. 1. The inner cor-
ary bed-blocks F F are firmly secured on the ners of these four heads D D DD are re-
ends of the arms, said bed-blocks entering the spectively connected by four toggle-arms, E
bale-boxes as the latter are moved toward the E E E, turning on pivots g g g g, substantially
former, the outer ends of the bale-boxes being as represented in Fig. 1. Then suppose the
left open for that purpose. Spaces d d are left two opposite bale-boxes, B B, to be drawn in
under the stationary bed-blocks sufficient to and filled with the substance to be pressed, by
allow the bottoms c e of the bale-boxes to slide attaching the rope or chain I to the heads of
therein, as represented in Figs. 2 and 3. The the other pair of bale-boxes, C C, and turning
bottoms c C of the bale-boxes have ledges, one the shaft G, so as to wind up the said rope or
on each side thereof, projecting downward chain, said bale-boxes will be drawn in, and
over the sides of the arms A A, as shown in their action on the toggle-arms E E E E will
dotted lines, Figs. 2 and 3, to suitably guide force the bale-boxes B B outward with con-
the bale-boxes and keep them in place. The stantly-increasing power of pressure and press
sides b b of each bale-box are hinged to the the substance therein. Then, while the bales
bottom c, and the top a of each bale-box is in the bale-boxes B Bare tying the bale-boxes
hinged to one of the sides b b. The inner ends C C are filling. Then the rope or chain I is
of the bale-boxes are respectively closed with shifted to the bale-boxes B B,-as indicated by
heads DD D D, which are strongly and firmly red lines in Fig. 1, and on turning the shaft
secured thereto. Thus arranged, when the G again the pressure is, in like manner, pro-
bale-boxes are filled and then forced outward, duced in the bale-boxes C C, while the bale-
the substance therein is forced against the boxes B B are by the same action drawn in
ends of the stationary bed-blocks F F, and is again. Thus the pressing is continued alter-
compressed there. In this lies an especial nately in the two opposite pairs of bale-boxes,
advantage of the moving bale-boxes over the and one set of toggle-arms performs the whole
ordinary arrangement of moving followers, work. In this way a very rapidly-working
for, since the compression mostly takes place and convenient press is produced, which is
at a stationary point, there is not nearly so also very simple and cheap.
much side pressure and consequent friction I disclaim the employment of double bale-
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McCray, Thomas H. Improvment in Cotton-Presses., patent, March 13, 1860; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth165095/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.