CERTAIN NEW AND USEFUL IMPROVEMENTS IN MACHINERY FOR MAKING ROVING, AND FOR SPINNING SUCH INTO YARN
Year: 1867

page_text: LETTERS PATENT to Albert Huston Gilman, of the State of Massachusetts,
of the United States of America, for the Invention of "CERTAIN NEW
AND USEFUL IMPROVEMENTS IN MACHINERY FOR MAKING ROVING, AND FOR
SPINNING SUCH INTO YARN."
Sealed the 5th July 1867, and dated the 7th May 1867.
COMPLETE SPECIFICATION filed by the said Albert Huston Gilman
at the Office of the Commissioners of Patents, with his Petition, and
Declaration, on the 7th May 1867, pursuant to the 9th Section of the
Patent Law Amendment Act, 1852.
TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME, BE
IT KNOWN, that I, ALBERT HUSTON GILMAN, of the State of Massachusetts,
of the United States of America, have made an Invention of "CERTAIN NEW
AND USEFUL IMPROVEMENTS IN MACHINERY FOR MAKING ROVING, AND FOR SPINNING
SUCH INTO YARN," and I do hereby declare that the following is a full, clear, and
exact description of the nature, construction, and operation of the same,
reference being bad to the accompanying Drawings, of which Figure 1 is a
perspective view of a section of a spindle and a spindle gear and step
or stand as arranged for use when constructed according to my improved
plan.

page_text: Figure 2 is a transverse sectional view of a spindle, spindle gear, and step
of the ordinary construction, as arranged for use.
Figure 3 is a transverse sectional view of a spindle, spindle gear, and
step constructed and arranged according to my plan. Corresponding letters
refer to corresponding parts.
66
In the manufacture-of-cotton-great-difficulty-is-experienced-in-keeping-the-
bearings or steps of the spindles properly lubricated, particularly in that
class of spinning frames known as "slubbers" and "fly frame," to which my
Invention is more particularly applicable. In such frames the spindles on
which the bobbins containing the roving or yarn are placed stand in steps
attached to the spindle rail, and rise and fall with it, rotary motion being also
at the same time communicated to them by means of well-known mechanism
disposed in the frame, and by means of the spindle gear. The arrangement
of the parts in question will be better understood by reference to Figure 1, in
which B is the body of the spindle step, P being the stud by which it is
attached to the spindle or rail. The part a of the step is bored or drilled out
into a cup for the lower end of the spindle to stand in.. G is the spindle gear
having bevelled cogs or teeth m, m, and is attached to the spindle S by the
set screw 's. A spindle, spindle gear, and step of the style in common use are
shown in Figure 2 and also their relative positions when in use, in which
Figure the end a, a, of the step B is turned out cup-shaped, as shown, and
the spindle gear is arranged on the spindle, above the cup of the step, being
so constructed as not to pass down over the cup of the step. When a spindle
is operated in connection with such a step the oil in the cup used for lubricating
will be nearly or entirely thrown out by the centrifugal force of the spindle
and the cup left dry, thus greatly increasing the friction and making a propor-.
tionate increase of power or force to drive the frame requisite.
'
Another and important objection to the construction and arrangement of
the parts in the manner shown in Figure 2 is that the gear. G by not passing
down over the cup.a, a, allows particles of cotton to collect-around the spindle
between the gear and step and in the cup, thus forming as, the spindle rotates
a sort of "swab" or ".wiper," which takes up the oil and leaves the, cup or
bearing dry; but these difficulties are entirely overcome by my improvement,
which will be understood by the following description and by reference to
Fig. 3 In order to prevent the oil from being thrown from the cup by
the rotating spindle I turn out or construct near the top of the interior of the
cup, the chamber V, V, as shown, the operation and use of which are to catch
and retain the oil as it is thrown upward by the spindle in such a manner
that a sufficient quantity is dealt out to the spindle to lubricate it when in

page_text: motion, the oil falling to the bottom of the cup when the spindle is at rest.
To prevent the cotton. from gathering between the gear and cup or in the cup,
as described, I cut out or make the lower end of the gear so that it will pass
down over the top of the cup like a flanged: cover, as shown; and in order that
the gear may be so constructed and used, and still intersect properly with the
gear and mechanism by which the spindle is driven I cast or construct the
top of the cup.higher or longer than it is usual to make it, so that the gear
will cover the cup without sitting too low on the spindle. In the ordinary
style of spindle, as shown, the oil is sometimes passed into the cup through an
oblique hole or aperture running from the outside of the step to the bottom of
the cup, as indicated by the dotted lines in Fig: 2; but this method is open
to the objections which apply to a cup without this hole, as the oil is forced
back through it by the action of the spindle and "sucked up" or exhausted
by the cotton which collects on the outside of the step and in the hole. The
hole is also liable to become entirely stopped up, so that the oil cannot pass to
the cup.
To oil the spindle where my improvement is used, the spindle and
its gear are raised and the oil poured directly into the cup, thus insuring
perfect lubrication.
Having made a spindle step cap combined with the spindle, so as to
revolve with it, and extend over cover, and embrace the oil receiving step of
the spindle as set forth, and also having combined directly or in one piece
with a cap so made the teeth of a gear in order that the said teeth and cap
may be made to subserve two purposes, viz., to act as a gear to revolve the
spindle, and as a cap and to cover and embrace the spindle step as set forth,
I would remark that my Invention and what I claim are as follows:-
I claim a spindle step cap combined or to be connected with the spindle
so as to revolve with it, and made so as to extend over and embrace or go
around the spindle step, and so applied to the spindle as to be capable of
being moved lengthwise thereon and fastened in place thereon by a clamp
screw or its equivalent, the whole being substantially as and for the purpose
or purposes as explained.
I also claim a spindle gear made so as to be movable lengthwise on its
spindle and provided with a screw or its equivalent to fasten it in place thereon,
and so constructed that the gear itself shall form a cap for and pass down;
over, or around the step without being in contact with it, substantially in the
manner and for the purpose shown and specified.
I also claim. the combination and arrangement of the groove e with the

page_text: I also claim the combination of the groove v with the step a and with the
cap G made so as to extend over and embrace or go around the said step as
specified.
In witness whereof I have hereunto set my hand and seal, this 19th
day of April-1867.