IMPROVEMENTS IN LUBRICATING OF SPINNING & PREPARING MACHINERY AND IN APPARATUS THEREFOR PROVISIONAL SPECIFICATION
Year: 1882

page_text: LETTERS PATENT to Benjamin Alfred Dobson Machine Maker of Bolton
County of Lancaster, for an Invention of "IMPROVEMENTS IN LUBRICATING OF
SPINNING & PREPARING MACHINERY AND IN APPARATUS THEREFOR
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson
at the Office of the Commissioners of Patents on the 2nd August 1882.
BENJAMIN ALFRED DOBSON Machine Maker of Bolton County of Lancaster
IMPROVEMENTS IN LUBRICATING OF SPINNING & PREPARING MACHINERY AND IN
APPARATUS THEREFOR..
My Improvements in lubricating consist of methods of applying a loose or
removable oil reservoir to spindles mounted in rails of Spinning machines. In
spindles with bolsters and sleeves where the lower end of the spindle descends
below the level of the top of the rail I form an annular recess between the interior
part of the bolster covering the lower end of the spindle and the exterior part of
the bolster fastened to or into the rail and apply the removable oil cup from below
entering it into the annular recess so formed. The cup may be secured.in its place
by any of the ordinary well known methods but I prefer to turn a groove at the
outside of the exterior part of the bolster at the lower end and fasten a spring on
the oil cup with a projecting part which will enter the groove and thereby secure
the oil cup in its position
I
This method can be applied either to a spindle having a circulation of oil from
foot to collar and a return free from conflicting currents or any self oiling spindle
such as that known as the Rabbeth-This enables me to make a spindle requiring
no extra length of foot or spindle and still giving the advantages of circulation of
oil with a removable reservoir for the oil-Or I may apply in this way a
removable oil cup to spindles having elastic bearings in which case the oil cup
might be secured either to the lower end of the spindle elastic bolster or to the
outside portion of the bolster.
My improvements also consist of an arrangement of a fly comb-motion box.
whereby thorough lubrication and a perfectly even motion can be obtained. The

page_text: box containing the motion has the cover accurately fitted to and is secured by
bolts and has an oil channel running all round the four sides of the joint with holes
communicating with all or some of the working parts I have a brush secured by
setting screws and also a nut which presses a ring of asbestos or other substance
against the outside of the bush and prevents the exuding of the oil-This so far is
not novel On the shaft driven by the ordinary band pulley is an eccentric fitting
into a hole in another eccentric of larger diameter which in its turn fits in a hole
in a lever carried on the shaft actuating the comb blade In the surface of the
working parts of the aforesaid eccentrics are made grooves of very slight depths in
which the deepest part may be nearest the bottom and each groove may taper
gradually upwards. With this arrangement a perfect lubrication is obtained and
the wear and tear reduced to a minimum because I arrange so that most of the
working parts have a portion of their surfaces below the constant level of the oil in
the box.
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 February 1883.
BENJAMIN ALFRED DOBSON, Machine Maker, of Bolton, County of Lancaster
"IMPROVEMENTS IN LUBRICATING OF SPINNING AND PREPARING MACHINERY, AND
IN APPARATUS THEREFOR
"
In
My improvements in lubricating consist of methods of applying a loose or
removable oil reservoir to spindles mounted in rails of spinning machines.
spindles with bolsters and sleeves where the lower end of the spindle descends
below the level of the top of the rail I form an annular recess between the interior
part of the bolster covering the lower end of the spindle and the exterior part of
the bolster fastened to or into the rail and apply the removable oil cup from below.
entering it into the annular recess so formed. The cup may be secured in its place
by any of the ordinary well known methods but I prefer to turn a groove at the
outside of the exterior part of the bolster at the lower end and fasten a spring on
the oil cup with a projecting part which will enter the groove and thereby secure
the oil cup in its position.
i
This method can be applied either to a spindle having a circulation of oil from
foot to collar and a return free from conflicting currents or any self oiling spindle
such as that known as the Rabbetb. This enables me to make a spindle requiring
no extra length of foot or spindle and still giving the advantages of circulation of
oil with a removable reservoir for the oil. Or I may apply in this way a
removable oil cup to spindles having elastic bearings in which case the oil cup
might be secured either to the lower end of the spindle elastic bolster or to the
outside portion of the bolster.
"
My improvements also consist of an arrangement of a fly comb motion box

page_text: whereby thorough lubrication and a perfectly even motion can be obtained. The
box containing the motion has the cover accurately fitted to and is secured. by
bolts and has an oil channel running all round the four sides of the joint with holes
communicating with all or some of the working parts. I have a bush secured by
setting screws and also a nut which presses a ring of asbestos or other substance
against the outside of the bush and prevents the exuding of the oil. This, so far,
is not novel.
On the shaft driven by the ordinary band pulley is an eccentric fitting into a
hole in another eccentric of larger diameter, which in its turn fits in a hole in a
lever carried on the shaft actuating the comb blade. In the surface of the working
parts of the aforesaid eccentrics are made grooves of very slight depths in which
the deepest part may be nearest the bottom and each groove may taper gradually
upward. With this arrangement a perfect lubrication is obtained and the wear
and tear reduced to a minimum because I arrange so that the most of the
working parts have a portion of their surfaces below the constant level of the
oil in the box.
'
And in order that my Invention may be fully understood and readily carried into
effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.
1.
Fig. 1 is an elevation. Fig. 2 is a sectional elevation on the line A. B. Fig.
Fig. 3 is a sectional elevation on the line C D. Fig. 2. Fig. 4 is a plan of Fig. 3,
partly in section. Fig. 5 is a detached view of the eccentrics i and j and the
lever k. Fig. 6 is a section of the same on the line E F. Fig. 5. with part of the
lever removed in order to show the recesses for oil in j and k of mechanism for
operating the doffer comb of a carding engine and Fig. 7 is a sectional elevation of
a spindle.
In Figs. 1, 2, 3 and 4 a is the supporting case or frame made with the side
next to the doffer perfectly plane so that there are no ledges or projections of any
description for the dust or fly to rest on as is the case in frames of the ordinary
construction. The cover or cap bis accurately fitted and secured by screws to the
frame or case a which is partly filled with oil. The level of the oil should be about
the centre of the shaft h for the better lubricating of the working parts. After
being filled to this level the cap or cover b is fastened on and more, oil is introduced
when required at a¹ (see Fig. 2). When the mechanism is working the speed at
which it runs causes the oil to be thrown in all directions. The oil runs down the
sides of the cap b and some may ooze out at the joint between the frame a and
cap b, (see Fig. 3) but to prevent it escaping from the frame the channel c is cut
partly round the four sides of the joint of the box or frame a and cap b as shown in
Figs. 1, 3 and 4. The channel c is connected to the holes or channels & and e (see
Figs. 2 and 4) communicating with all or some of the working parts. The oil, as it
runs down the hole d flows along the channel d¹ cut in the side of the frame a,
extends to the bearing d² and lubricates that end of the shaft h. The bush f that
forms a bearing for the driving shaft h is secured to the frame by setting screws fl
by which it may be adjusted and also by a nut g which screws into the frame a
and presses a ring of asbestos g₁ or other substance against the outside of the
bush faud thus prevents the exuding of the oil. An annular recess and passage e¹
in the bush f surrounding the shaft h collects the oil that would escape and returns
it to the case or frame a. The shaft is driven by the ordinary band pulley: on
this shaft is secured the eccentric i which is fitted and works loosely in an
eccentric fitted and working loosely in the lever / secured to the shaft n which
actuates the doffer comb when the shaft h is caused to rotate. The lever k has a
long boss which is fixed on the shaft n and moves with it in suitable bearings
formed in the frame a and cover b. In the surface of the working parts of the
eccentric and the lever k I make grooves or recesses as shown in Figs. 3, 5 and 6
of very slight depth in which the deepest part may be nearest the bottom of the
frame and each groove or recess may taper gradually upward: the oil in the frame
fills the recesses in the lower portion of the eccentric j and lever and when at

page_text: work the recesses in one surface convey some oil into the recesses in the other
surface, the lower or deeper part of each recess taking the oil from the recess next
below it in the surface which works against it.
By the use of the eccentrics i and j in conjunction with the lever k, links, cranks,
and joint pins and sliding bars are all dispensed with and excessive wear and tear
and knocking of joints are avoided and ample wearing surfaces and great durability
are secured. The motion of the eccentric which gives a reciprocating motion to
the lever k makes it very easy for the eccentric i to perform its work. The
eccentric is also self-oiling as before explained.
In Fig. 7o is the spindle fitted in an upper bearing and footstep in the
bolster p secured to the rail g by the nut r: between the portion of the bolster in
which the lower part of the spindle turns and the portion of the bolster that passes
through the rail I form an annular recess into which I enter the removable oil
cup a provided with a spring t one end of which enters an external recess near the
end of the bolster to retain the oil cup in position. When the spindle o rotates the
oil from the cup 8 passes to the foot of the spindle, is propelled to the upper bearing
by the helical groove in the spindle and returns outside the bush or upper part of
the bolster through a passage u to the oil cup s. This oil cup may be readily
removed for cleaning or filling and replaced while the spindle is running.
Having stated the nature of my Invention and described the manner of performing
the same.
I declare that I claim
1. In the improved mechanism for operating a doffer comb the combination of
the eccentrici (secured to the driving shaft and working loosely in the
eccentric ;) and the eccentric j (working loosely in the lever k) with the lever k
secured to the shaft n substantially as herein shown and described.
2. The grooves or recesses in the working surfaces of the eccentric j and the
lever (Figs. 3, 5 and 6) to ensure the perfect lubrication of the said parts as herein
shown and described.
:
3. The combination with an annular recess (formed in that part of the spindle
bolster surrounding the spindle footstep on which is screwed the nut to secure it in
the rail) of the removable oil cup fitted in the said recess substantially in the manner
and for the purpose herein shown and described.
In witness whereof I the said Benjamin Alfred Dobson have hereunto set my
hand and seal this thirty first day of January One thousand eight hundred
and eighty three.