Improvements in the Method of and in Means for Driving the Fluff Brushes used in Revolving Flat Carding Engines.
Year: 1898

page_text: Date of Application, 20th Aug., 1898
Complete Specification Left, 23rd May, 1899—Accepted, 8th July, 1899
Improvements in the Method of and in Means for Driving the Fluff
Brushes used in Revolving Flat Carding Engines.
I, SILAS WALMSLEY, of 44, St. Mary's Road, Bamber Bridge, Preston, in the
County of Lancaster, Head Carder, do hereby declare the nature of this inven-
tion to be as follows:-
My said invention relates to the driving of the cylindrical fluff brushes used
in revolving flat carding engines the object of such brushes being to brush the
revolving flats after stripping has taken place and before the flats pass back to
the cylinder as is well understood.
These brushes are usually driven direct by bands from the flat driving shaft,
the doffer shaft, or other moving part; and in consequence of the driving motion
being derived therefrom such brushes cannot be conveniently driven at a suitably
slow speed and are therefore frequently revolved at a speed in excess of what
is desirable.
According to niy invention I propose to actuate such revolving fluff brushes
through a suitable slow motion of speed reducing gear, such slow motion or gear
being driven from the flät driving shaft or other convenient moving part of the
engine,
In a driving arrangement which I at present consider suitable I fix on the end
of the brush shaft an internally toothed rack ring or pinion which may be of
any convenient diameter. This rack ring may be secured on the shaft by a
pinching screw so as to permit of ready application and adjustment. Gearing
with this rack ring is a small spur pinion carried on the inside of an annular cover
or shrouding disc, tlie rack ring and annular cover or disc coming together like
the two hälves of a box.
-
The annular cover is bored so as to allow it to rest on the brush shaft as will
be obvious. The stud on which the small spur pinion is mounted projects, for
a suitable distance, outside the annular cover and upon this stud I mount a
grooved pulley or part which receives motion from any convenient part of the
engine by means of a band or the like. This grooved pulley of the like is pre-
ferably bound on the stud by a pinching screw whereby endwise movement is
provided for so that more perfect alignment between the pulley and driving source
is obtainable. In order to sustain the annular cover in position and to tighten
the driving band I form or provide the cover with a projecting part having a
curved slot therein a fixed bolt from any suitable part of the engine extending into
such slot. By screwing a nut on this bolt the cover is readily locked in position.
The action of the gear is as follows: When the grooved pulley is driven the
smäll enclosed pinion is caused' to revolve actuating in turn the larger internally
toothed rack ring and consequently the brush' shaft so that the fluff brush is
driven at the required' reduced speed.
I do not confine myself to the exact form of gear herein described although the

page_text: same is particularly suitable as being completely enclosed it is impossible for
fluff or fly to interfere with its perfect working.
The gear above indicated, being self contained, may be readily affixed to exist-
ing engines.
Improvements in the Method of and in Means for Driving the Fluff
Brushes used in Revolving Flat Carding Engines.
I, SILAS WALMSLEY, of 44, St. Mary's Road, Bamber Bridge, Preston, in the
County of Lancaster, Head Carder, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement and accompanying drawings:-
My said invention relates to the driving of the cylindrical fluff brushes used
in revolving flat carding engines the object of such brushes being to brush the
revolving flats after stripping has taken place and before the flats pass back to
the cylinder as is well understood.
These brushes are usually driven direct by bands from the flat driving shaft,
the doffer shaft, or other moving part and in consequence of the driving motion
being derived therefrom such brushes cannot be conveniently driven at a suitably
slow speed and are therefore frequently revolved at a speed in excess of what
is desirable.
According to my invention I propose to actuate such revolving fluff brushes
through a suitable slow motion or speed reducing gear, such slow motion or gear
being driven from the flat driving shaft or other convenient moving part of the
engine.
My invention will be fully understood from a perusal of the following specifi-
cation reference being had to the annexed two sheets of illustrative drawings.
In the said drawings.
On Sheet 1.
Fig. 1 shows a portion of a fluff brush the shaft carrying my improved speed
reducing gear.
Fig. 2 is a face view of the gear looking in the direction of the arrow, Fig. 1.
Fig. 3 shows a face view of the internally toothed rack ring forming part of
the gear.
Fig. 4 is an end view of Fig. 3.
Fig. 5 shows a side view of the annular cover carrying the band pulley.
Fig. 6 is a back face view of Fig. 5 and shows the interior of the annular cover.
In a driving arrangement which I consider suitable I fix on the end of the
brush shaft a an internally toothed rack ring or pinion 6 which may be of any
convenient diameter. This rack ring 6 may be secured on the shaft by pinching
screws 61 so as to permit of ready application and adjustment. Gearing with
this rack ring is a small spur pinion e carried on the inside of an annular cover or
shrouding disc d, the rack ring and annular cover or disc coming together like
the two halves of a box.

page_text: The annular cover d is bored so as to allow it to rest on the brush shaft a as
clearly shown in Fig. 1.
The spur pinion is formed in one with a grooved pulley e and pinion and
pulley run on a fixed stud f screwed into the metal of the cover plate
as shown
in Figs. 1, 5 and 6. The grooved pulley e receives motion from any convenient
part of the engine by means of a band or the like.
For instance the pulley may be driven by means of a crossed-band g from the
stud shaft. used for driving the flats.
Instead of the grooved pulley and pinion running on a fixed spindle the spindle
may run in bearings and the pinion and pulley be fixed thereto. In this case the
grooved pulley might be bound on the spindle by a pinching screw whereby end-
wise movement is provided for so that more perfect alignment between the pulley
and driving source is obtainable.
h
In order to sustain the annular cover d in position and to tighten the driving
band I form or provide the cover with a projecting part having a curved slot
therein a fixed bolt i from the block shaft bracket or from any other suitable part
of the engine extending into such slot. By screwing a nut on this bolt the cover
is readily locked in position.
The action of the gear is as follows. When the grooved pulley e is driven the
small enclosed pinion e (which may have say 10 teeth) is caused to revolve actuat-
ing in turn the internally toothed rack ring b (which may have say 90 teeth) and
consequently the brush shaft a, so that the fluff brush is driven at the required
reduced speed.
I do not confine myself to the exact form of gear herein described although
the same is particularly suitable as being completely enclosed it is impossible for
fluff or fly to interfere with its perfect working.
The gear above indicated being self contained may be readily affixed to existing
engines.
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:-
1) Actuating the fluff brushes employed to brush the flats of carding engines
through a speed reducing gear in the manner and substantially as described.
2) The improved self contained speed reducing gear consisting of an internal
rack ring and cover plate d carrying a driven pinion e all combined and operat-
ing, in the manner, for the purposes and substantially as herein described and
shown.