CERTAIN IMPROVEMENTS IN MACHINERY FOR SPINNING AND DOUBLING
Year: 1879

page_text: LETTERS PATENT to Benjamin Alfred Dobson, of the Firm of Messieurs
Dobson and Barlow, of Bolton, in the County of Lancaster, Machine Maker,
for the Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR SPINNING
AND DOUBLING."
Sealed the 13th June 1879, and dated the 4th April 1879.
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson at
the Office of the Commissioners of Patents on the 4th April 1879.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker. "CERTAIN IMPROVEMENTS IN
MACHINERY FOR SPINNING AND DOUBLING."
My Invention is applicable to ring and traveller and other throstle spinning and
doubling frames, and it consists in an improved mode of constructing the spindles
and the bearings in which they revolve, whereby the greatest speed can be obtained
without vibration. In order to accomplish this object, I make the lower part of
the spindle below the wharve rather longer and heavier than the part above the
wharve with the spool or paper tube and the yarn that is wound thereon. The
wharve is made to act as a cover to the bolster bearing and avoid the entrance of
fly and dust.
Immediately below the wharve is the bolster bearing which is screwed into the
upper end of a tube fixed into the bolster rail, and at the bottom of the tube is
screwed the footstep; the space within the tube forms an oil chamber as usual. The
bolster bearing is provided with an internal spiral groove and a vertical slot. When
the spindle is revolving, the oil from the oil chamber is carried up the spiral groove.
to the top of the bolster bearing, and it descends again through the vertical slot.
The upper part of the footstep is conical to convey any impurities in the oil into
the bottom of the tube. When the footstep is removed, the tube can be cleaned
out with facility.
When the yarn is wound on paper tubes or spools, I wind a few coils on the bare
spindle between the wharve and the lower end of the paper tube or spool; these
coils remain on the spindle when the full cops are doffed, and serve as a foundation
for the next set by being fastened against the spindle blade by the
tube or
wooden or other spool.
paper

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Benjamin Alfred Dobson in the Great Seal Patent Office on the
2nd October 1879.
"
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker. CERTAIN IMPROVEMENTS IN
MACHINERY FOR SPINNING AND DOUBLING."
My Invention is applicable to ring and traveller and other throstle spinning and
doubling frames, and it consists in an improved mode of constructing the spindles
and the bearings in which they revolve, whereby the greatest speed can be obtained
without vibration. In order to accomplish this object, I make the lower part of
the spindle below the wharve rather longer and heavier than the part above the
wharve with the spool or paper tube and the yarn that is wound thereon. The
wharve is made to act as a cover to the bolster bearing to prevent the entrance of
fly and dust.
Immediately below the wharve is the bolster bearing which is screwed into the
upper end of a tube fixed into the bolster rail, and at the bottom of the tube is
screwed the footstep; the space within the tube forms an oil chamber as usual.
The bolster bearing is provided with an internal spiral groove and a vertical slot.
When the spindle is revolving, the oil from the oil chamber is carried up the spiral,
groove_to_the_top_of_the_bolster bearing, and it descends again through the vertical
slot.
The upper part of the footstep is conical to convey any impurities in the oil into
the bottom of the tube. When the footstep is removed, the tube can be cleaned
out with facility.
When the yarn is wound on tubes or spools, I wind a few coils on the bare
spindle between the wharve and the lower end of the tube or spool; these coils
remain on the spindle when the full cops are doffed, and serve as a foundation for
the next set by being fastened against the spindle blade by the paper or other tube-
or wooden or other spool.
And in order that my Invention may be fully understood and readily carried
into operation, I will proceed to describe the accompanying Sheet of Drawings.
Fig. 1 is an elevation of one of my improved spindles, and of the bearings in
which it revolves. Fig. 2 is a front view of three spindles forming part of a row.
of spindles; a is the bolster rail; b, the footstep rail; and c the ring rail which are
made as usual. The tube d is fixed in the bolster rail a, and passes through the
footstep rail b. At the upper end of the tube d is screwed the bolster bearing e,
and at the lower end of the tube is the footstep f; the spindle g revolves in the
bolster bearing and footstep, and the space within the tube between the two forms
an oil chamber as usual; there is a spiral groove in the bolster bearing to convey
the oil to the top, and a vertical slot at one side for the oil to descend again into
the tube.
The upper part of the footstep f is conical to form an annular recess within the
bottom of the tube, to collect any impurities that may be in the oil. When the
footstep is removed, the tube can be cleaned with facility.
To the spindle g is fixed the wharve h, the under side of which is recessed to act
as a cover to the bolster bearing, and prevent or hinder the fly or dust entering the
tube d. Above the wharve h is the braid i, the rim of which is serrated to assist
in starting the travellers with a comparatively large diameter when the full spool
or cop is doffed. The lower end of the spool j fits in the cup i, and the upper end
thereof fits on the upper end of the spindle, and the yarn is wound on the spool by
the ordinary mechanism to form the cop k.
In order to allow the spindles to be driven at the greatest speed without
vibration, I make the lower part thereof below the wharve heavier than the part
above the wharve, including the spool or tube with the yarn that is wound thereon,

page_text: To the upper end of the tube d is fixed the spring clip 1, the upper part of which
projects over the wharve h, and prevents the spindle being lifted out of its bearings
when doffing. The spindles can be stopped by the knee of the attendant pressing
against these clips.
Fig. 3 represents the upper part of a spindle with the cop wound on a paper or
other tube.
Fig. 4 represents the same with a metal tube in which is a spiral slot to give the
required elasticity.
Fig. 5 represents one of my improved spindles for a ring and traveller doubling
frame, with a bobbin or spool m, having a small flange below recessed to fit on the
projection n on the wharve h; this wharve projects over the top of the bolster
bearing e to exclude the fly and dust from the tube d. When the yarn is wound
on tubes or spools, a few coils of yarn are wound on the bare spindle between the
wharve and the lower end of the tube or spool; these coils remain on the spindle
when the full cops are doffed, and serve as a foundation for the next set, being
fastened to the spindle blade by the tube or spool.
Having thus stated the nature of my Invention, and described the manner of
performing the same, I declare that I claim,-
First. Making the lower part of the spindles of spinning and doubling frames
heavier than the upper parts, with the spools or tubes and cops, for the purpose
described.
Secondly. The combination of the improved spindle above described with the
oiling arrangement, and the reservoir for deposit from the oil, and the wharve
acting as collar cover, as shewn and described.
Thirdly. The combination of the said improved spindle and bush or tube with
wharve above the bolster bearing for winding either on a wood bobbin or spool, or
on a paper or metal tube with slot, as shewn and described.
Fourthly. The combination of the spindle above described with the braid, with
notches to assist the starting of the travellers when spinning on paper or metal
tubes, and also to receive the bottom of the wood bobbin or spool, as shewn and
described.
Fifthly. The combination of the spindle above described, with a spring to
prevent the rising of the spindle, which spring when turned to the front, also assists
the stopping of the spindle, as shewn and described.
In witness whereof, I, the said Benjamin Alfred Dobson, have hereunto set my
hand and seal, this Twenty sixth day of September, One thousand eight
hundred and seventy nine.
Witness,
L. MANN.
26th Sept*. 1879.
BENJAMIN ALFRED DOBSON. (L.S.)