IMPROVEMENTS IN SELF ACTING MULES
Year: 1884

page_text: I JAMES MACQUEEN of Bury in the County of Lancaster Machinist, do hereby
declare the nature of said invention for IMPROVEMENTS IN SELF ACTING MULES, to
be as follows:-
The object of my invention is to remedy the defects of the winding-on quadrant
as made hitherto Some of those defects are that the quadrant having only a
uniform motion cannot give the true curve for winding-on and when in the best
position is only approximately correct, and that this position when attained is very
difficult to maintain through the necessity for frequently adjusting the bands
which give motion to the quadrant, or, when the quadrant is driven from the back
shaft, the necessity for adjusting the bands from the back shaft which drives the
carriage.
The first defect I remedy by using a radial arm instead of the quadrant and
giving it motion by a moveable curve which I can make absolutely correct to give
the true motion to the radial arın for winding-on. I connect the radial arm and
curve by fixing a stud on the side of the arm on which I place an antifriction
pully which rests against the curve, the winding on chain holds the arm against
the curve, and there is also provision made to prevent the arm from leaving it
when the chain is not connected.
The second defect I remedy by giving motion to this curve by attaching a rack'
to it which is fitted to slide in the framing of the head stock. Into this rack I
gear a wheel which I fasten on a shaft carried on the carriage square. On this
shaft I fit another wheel of different diameter which gears into a rack fixed on the
head stock framing, The action is as follows-When the carriage moves, motion
is given to the shaft fixed on the square by the fixed rack and wheel which gears'
into it, and to the curve through the other wheel on the same shaft driving the
rack attached to the curve, as the carriage travels the full length of the draw aud
the curve moves much less, the two wheels have to be made in proper ratio. When
the carriage moves inward to the beam the curve moving away in a straight line
allows the radial arm to descend at the proper speed for giving out chain for
winding-on in the usual manner. The radial arın is provided with a screw and
nut in the same manner as the arm of the ordinary quadrant and may be operated
on in the usual way to regulate the winding on to the size of the cop.

page_text: I JAMES MACQUEEN of Bury in the County of Lancaster, Machinist, do hereby
declare the nature of said invention for IMPROVEMENTS IN SELFACTING MULES
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :—
The object of my invention is to remedy the defects of the winding-on quadrant 5
as made hitherto. Some of those defects are that the quadrant having only a
uniform motion cannot give the true curve for winding-on and when in the best
position is only approximately correct and that this position when attained is very
difficult to maintain through the necessity of frequently adjusting the bands which
give motion to the quadrant or when the quadrant is driven from the backshaft 1
the necessity for adjusting the bands from the backshaft which drives the carriago.
In the accompanying sheet of drawings Fig. 1. represents a side view of part
of a selfacting mule headstock and part section of a carriage square.
Fig. 2 represents an end view of the same.
Fig. 3 represents a similar view to Fig. 1 without the carriage square.
The same letters refer to similar parts as shewn in the different figures.
The first defect I remedy as follows:
In Figs. 1 and 2, a. represents a part of the framing of a selfacting mule head-
stock. b. a radial arm instead of the ordinary quadrant and radial arm which
moves on a stud in the framing in the usual manner-c. is an antifriction pully
revolving freely on a stud fixed in the radial arm-d. is a moveable curved piece fixed
to or forming part of the slide bar e. and moves or slides backwards and forwards in
the framing a. This curved piece may be made absolutely correct to give the truo
motion to the radial arm for winding-on-The curved part at the top prevents the
radial arm when in an upright position from leaving the curved-piece when the
chain is not connected.
Fig. 3 represents an alternative arrangement to the above where the curved piece
is attached to the radial arm and the antifriction pully to the slide-bar.
The curved piece may be fixed to the slide bar or the radial arm (as in Fig. 3)
in such a manner that its position can be adjusted or it may be made to form part
of the slide bar or of the radial arm.
I now describe the mode of giving motion to the slide bar and remedying the
second defect mentioned above-To the slide bar c. I attach a rack f. and into this
rack I gear a wheel g. which I key fast on a shaft h. carried by suitable bearings
on the carriage square i., on this shaft I fix another wheel j. of different diametor
which gears into a rack k fixed on the headstock framing this rack being the whole
length of the draw. The action, is as follows-When the carraige moves motion is
given to the shaft h. on the carriage square by the fixed rack k. and wheel j. which
gears into it, and to the slide bar through the wheel g. on the same shaft driving
the rack f. attached to the slide bar. As the carriage travels the full length of the
draw and the slide bar (with the curved piece or the antifriction pully on it
according to the arrangement used) moves much less the two wheels have to be
made in that proportion-When the carriage moves inward to the beam the slide
bar moving away in a straight line allows the radial arm to descend at the proper
The radial arm is
speed for giving out chain for winding-on in the usual manner.
provided with a screw and nut in the same manner as the arm of the ordinary
quadrant and may be operated on in the usual way to regulate the winding-on to
the size of the con.

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
1st The curved piece d. in combination with a slide bar to regulate the motion
of the radial arm in winding-on, as described.
2nd The use of two racks one being fixed and the other attached to a sliding bar
or their equivalents for the purpose of giving a positive motion from the carriage
to the radial arm and securing each in their true relative positions to each other.
Dated this 11th day of December 1884.
PETER MºGREGOR,
Agent for Applicant,
Queen's Chambers,
5, John Dalton St., Manchester.