Improvement in Cotton-Presses. Page: 3 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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16,494
stau, 1851, a method of changing the direction
and the speed of the capstan-barrel is shown.
This is done by means of a central movable
pinion, which slides up and down on the cen-
ter shaft of the machine, on which shaft is a
feather. When the said pinion is lowered, it
is thrown into gear with the intermediate pin-
ions, which communicate with the rim of the
capstan, and the power which is applied by
means of levers on the rim is transmitted
to the central pinion, and through it to the
central shaft, and as this latter is connected
with the barrel of the capstan the speed of the
capstan is greatly increased. If, now,the cen-
tral pinion be raised out of gear with the in-
termediate pinions, the direction of the cap-
stan-barrel is changed and its speed reduced.
My device differs, essentially, from the above
invention, and among the differences are the
following: First, I employ no central pinion;
second, the screw which represents the central
shaft does not revolve; third, even if it did,no
central pinion could rise and fall upon it as
upon a smooth shaft; fourth, the operations of
my press can at any instant be suspended with-
out checking the driving-power; but this can-
not be done in Ellis and Gordons' device; fifth,
the nature of their invention consists in com-
bining with the capstan a shifting spur-wheel,
for the purpose of reversing the direction of
the barrel of the capstan without reversingthe direction of the sweeps; sixth, the rim of
the capstan is a mere ring with teeth upon its
inner periphery. It is not connected with the
central pinion. The latter is wholly independ-
ent of the rim-wheel; seventh, the nut D in my
device is composed of one piece of metal, is
provided with two circles of gear-teeth,which
face each other, with a female screw in the cen-
ter. No such part is seen in the capstan above
mentioned.
I am aware that various devices have been
invented for changing the motion of revolving
wheels and shafts by means of shifting pinions;
but I am not aware that a press has ever been
made in which there was combined with the
screw a nut of the peculiar construction here
shown, and operating in conjunction with a
shifting pinion, as here described.
I disclaim the raising andlowering of a screw
by means of a nut which is caused to revolve
in different directions; but
What I claim as new in cotton-presses, and
desire to secure by Letters Patent, is-
The double-geared nut D, working in com-
bination with screw C, and operated by one or
more shifting pinions F, in the manner and for
the purposes substantially as herein set forth.
iM. L. PARRY.
Witnesses:
J. A. GRAY,
II. B. MARTIN.
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Parry, M. L. Improvement in Cotton-Presses., patent, January 27, 1857; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth165048/m1/3/: accessed May 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.