IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SPINNING AND DOUBLING COTTON AND OTHER FIBROUS ΜΑΤΕΡΙΑ τα
Year: 1881

page_text: LETTERS PATENT to Thomas Coulthard, of Preston, in the County of
Lancaster, Machinist, for an Invention of "IMPROVEMENTS IN MACHINERY
OR APPARATUS FOR SPINNING AND DOUBLING COTTON AND OTHER FIBROUS
ΜΑΤΕΡΙΑ τα
PROVISIONAL SPECIFICATION left by the said Thomas Coulthard at the
Office of the Cominissioners of Patents on the 12th July 1881..
THOMAS COULTHARD, of Preston, in the County of Lancaster, Machinist.
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SPINNING AND DOUBLING
COTTON AND OTHER FIBROUS MATERIALS."
This Invention of improvements in machinery or apparatus for spinning and
doubling cotton and other fibrous materials relates, firstly, to means for the removal
of dirty oil and sediment from the lower end of spindle apparatus, whereby the
system of pumping or steaming is dispensed with, my improvements being more
particularly applicable to "self contained" spindles, in which the upper and lower
spindle bearings are contained within a tube (termed the bolster tube) mounted in
the bolster rail. According to my Invention the bolster tube is continued somewhat
below the footstep, the part below the footstep being opened out, so as to form a
chamber or recess for the reception of dirty oil and sediment. The bottom of the
chamber is closed by means of a screw plug, which is removed when it is desired
to open the chamber for the removal or extraction of the dirty oil. The footstep
is perforated with one or more vertical oil ducts, through which the oil and
sediment may find their way from the interior of the tube above to the oil chamber
below, or a central hole of somewhat less diameter than the foot of the spindle
may be continued downwards through the footstep, in which case I prefer to
nake the end of the spindle foot flat instead of with a projecting centre as ordinarily
made.
23
The arrangement of oil chamber beneath a perforated footstep, as above described,
is obviously applicable to footstep bearings other than those in "self contained
spindles

page_text: My Invention relates, secondly, to an improved construction of adjustable sheet
metal ring holder for double flange rings employed in ring and traveller frames.
The improved holder consists of a flat annular ring of sheet metal whose central
opening is large enough to pass easily over the ring. A pair of lips project
inwardly at opposite points of the central opening and are so formed as to rest
upon the upper side of the lower flange of the ring. Elasticity is imparted to the
lips by slits cut partially through the body of the ring holder on each side of the
lips. The projecting edges of the lips are so formed relatively to the thickness of
the ring flange that by means of holding down screws the lips will be caused to
press upon the ring, which along with the ring-holder will be securely fastened to
the ring rail by the same operation.
The screw openings are placed between the slits made on either side of the lips,
and are of such a width and length relatively to the diameter of the holding down
screws, which are provided with heads of suitably large diameter as to permit of
the ring holder and the ring being adjusted to a position concentric with the
spindle.
The construction of ring holder above described is also applicable to rings other
than double flange rings, the ring holder being in some cases arranged to press
upon a projecting flange resting upon the ring rail.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Coulthard in the Great Seal Patent Office on the
11th January 1882.
THOMAS COULTHARD, of Preston, in the County of Lancaster, Machinist.
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SPINNING AND DOUBLING
COTTON AND OTHER FIBROUS MATERIALS."
This Invention of improvements in machinery or apparatus for spinning and
doubling cotton and other fibrous materials relates, firstly, to means for the removal
of dirty oil and sediment from the lower end of spindle apparatus, whereby the
system of pumping or steaming is dispensed with, my improvements being more
particularly applicable to "self contained" spindles in which the upper and lower
spindle bearings are contained within a tube (termed the bolster tube) mounted in
the bolster rail. According to my Invention the bolster tube is continued
somewhat below the footstep, the part below the footstep being opened out so as
to form a chamber or recess for the reception of dirty oil and sediment.
In the accompanying Drawings Fig. 1 is an elevation, partly in section, of one
kind of self contained spindle, of which a is the bolster tube, b the footstep, and c
the chamber or recess for dirty oil. The bottom of the chamber c is closed by
means of a screw plug d, which is removed when it is desired to open the chamber
for the removal or extraction of the dirty oil; e is a washer of leather, paper, or
other suitable material, interposed between the bottom of the bolster tube and a
flange on the screw plug d so as to make an oil tight joint. The footstep a is
perforated with one or more vertical oil ducts f (communicating with the interior
of the footstep), through which the oil and sediment may find their way from the
interior of the tube above to the oil chamber c below; or a central hole
(see Fig. 2) of somewhat less diameter than the foot of the spindle h may be
continued downwards through the footstep, in which case I prefer to make the end
of the spindle foot flat instead of with a projecting centre, as ordinarily made (and
shewn in Fig. 1).
The arrangement of oil chamber beneath a perforated footstep, as above described,
is obviously applicable to footstep bearings other than those in self contained
spindles.
My Invention relates, secondly, to an improved construction of adjustable sheet
metal ring-holder for double flanged rings employed in ring and traveller frames.
The improved holder consists of a flat annular ring of sheet metal whose central
opening is large enough to pass easily over the ring. A pair of lips project inwardly
at opposite points of the central opening, and are so formed as to rest upon the
upper side of the lower flange of the ring. Elasticity may be imparted to the lips
by slits cut partially through the body of the ring holder on each side of the lips.
In practice, however, I find that the inherent elasticity of the sheet metal of which
the holder is formed suffices the purpose intended, so that the slitting of the holder
is unnecessary. The projecting edges of the lips are so formed relatively to the
thickness of the ring flange that by means of holding-down screws the lips will be
caused to press upon the ring, which along with the ring-holder will be securely
fastened to the ring-rail by the same operation. The screw openings are placed
behind the lips and are of such a width and length relatively to the diameter of
the holding down screws, which are provided with heads of suitably large diameter
as to permit of the ring-holder and the ring being adjusted to a position concentric
with the spindle.
Fig. 3 is a side elevation; Fig. 4, a section; Fig. 5, a plan with top flange of
ring removed; and Fig. 6, a view shewing the ring in elevation and the holder in
section, and illustrating the mode of inserting the ring into the holder.

page_text: j is a double ring, that is to say, a ring having two flanges or races 1 and 2 ;
k is my improved holder provided with lips or projections & designed to rest upon
the upper side of the lower flange 2 of the double ring j. (The upper flange 1 of
the double ring j is omitted in Fig. 5 in order that the position and form of the
jaws may be better understood.) The central opening m of the holder is made
large enough to clear the periphery of the ring flanges 1 and 2, as will be seen by
reference to Figs. 4 and 5. The distance between the inner edges of the lips lis
such that the lower flange 2 of the ring j may be passed in a slanting direction
through the central opening m and then brought beneath the lips l, each of which
will overlap the flange 2 to the extent of about one half of the said flange. The
screws n pass through the slot openings o, and upon being screwed down into the
ring-rail p the ring j and the holder k may be secured to the ring rail by the same
operation.
By the employment of a ring holder, constructed and arranged as above
described, the lower flange of a double ring may, without temporarily or otherwise
springing or distorting the holder, be passed freely through its central opening and
brought into such a position beneath the lips or projections that when the holder
is screwed down the ring will be firmly secured to the ring rail without
liability to bending, straining, or otherwise deforming either ring or holder.
I find it convenient to make my improved holder, when to be employed for
spinning, with a lip like clearer q, as shewn in Figs. 7 and 8 and described in the
Specification of Letters Patent No. 1610, granted to me on the 20th day of April,
A.D. 1878.
Having now described and ascertained the nature of my said Invention, and
the manner in which the same is or may be performed, I desire it to be understood
that what I claim as secured to me by the hereinbefore in part recited Letters
Patent is,―
1. The arrangement in spindle bearings of a recess or chamber placed below
the footstep and accessible from the bottom of the bolster tube, substantially as
described and shewn in the Drawings for the purpose specified.
2. The construction of ring holder having a round central opening and two
lips or projections, arranged and operating substantially as described and shewn
in the Drawings for the purpose specified.
In witness whereof, I, the said Thomas Coulthard, have hereunto set my
hand and seal, this Tenth day of January, in the year of our Lord One
thousand eight hundred and eighty two.
THOMAS COULTHARD. (L.S.)