IMPROVEMENTS IN CARDING MACHINES; workers, andfancy" rollers of machines
Year: 1884

page_text: "
I EDWARD SENIOR, of Barnpark Mill, Tillicoultry, in the County of Clack-
mannan, Manufacturer, do hereby declare the nature of my said Invention for
IMPROVEMENTS IN CARDING MACHINES;" to be as follows:-
This Invention consists of an improved arrangement of driving gear for
operating the various carding rollers, such as "strippers,"
" " workers," and "fancy"
rollers of carding machines.
"
$3
In the usual arrangement of carding machines, the strippers and fancy rollers,
which revolve at a high speed, are actuated from the main "cylinder" shaft by
means of flat belts or bands passing over pulleys on the various roller shafts, and
the more slowly revolving "workers
are actuated, from the "doffer shaft by
pitch chains passing round sprocket wheels on their shafts, the driving gear in each
case being fitted within the supporting side frames of the machine. The use of
this arrangement is accompanied by serious disadvantages; firstly, the flat surfaces
of the bands and chains carry off large quantities of the wool, cotton, or other fibre
being carded, and besides causing the loss of the fibre, the belts are caused to slip
and the rollers work unevenly; secondly, when a belt or band breaks, it is carried
through between the rollers and crushes or breaks the carding surfaces, and in
practice the belts require to be removed and replaced long before they are worn
out; and thirdly, the pitch chains which actuate the "workers" impart an inter-
mittent or jerking motion of rotation to these rollers, and thereby cause uneven
carding of the fibre.
According to this Invention, these objections are overcome by extending the
various roller shafts beyond their bearings in the side frames of the machine, fitting
the driving gear outside, and employing grooved pulleys and endless ropes or round
bands in lieu of flat bands and plain pulleys.
A large grooved pulley is fitted on the "cylinder" shaft at one side of the
machine, and is formed by preference with a double groove, so that the driving
rope or round band may be passed entirely round the periphery to ensure proper
gripping. From this large pulley the driving rope passes over or round a smaller
grooved pulley fitted on the same end of each stripper shaft and fancy roller shaft,
and communicates rotatory motion to these shafts. On the opposite side of the
machine the doffer shaft and the spindles of the working rollers are carried out
Prić

page_text: beyond their bearings in the framing, and are fitted in the grooved pulleys, over or
round which is passed an endless rope or band to communicate rotatory motion
from the doffer shaft to the "worker" spindles, the doffer shaft being fitted with a
small grooved pulley formed by preference with a double groove, so that the
driving rope may be passed entirely round its periphery.
I, EDWARD SENIOR, of Barnpark Mill, Tillicoultry, in the county of Clackmannan,
Manufacturer, do hereby declare the nature of my said Invention for "IMPROVE-
MENTS IN CARDING MACHINES," and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
This Invention consists of an improved arrangement of driving gear for operating
the various carding rollers, such as "strippers," "workers," and "fancy" rollers of
carding machines.
"
In the usual arrangement of carding machines, the strippers and fancy rollers,
which revolve at a high speed, are actuated from the main "cylinder" shaft by
means of flat belts or bands passing over pulleys on the various roller shafts, and
the more slowly revolving "workers are actuated from the "doffer" shaft by
pitch chains passing round sprocket wheels on their shafts, the driving gear in each
case being fitted within the supporting side frames of the machine. The use of this
arrangement is accompanied by serious disadvantages, firstly, the flat surfaces of
the bands and chains carry off large quantities of the wool, cotton, or other fibre
being carded, and besides causing the loss of the fibre, the belts are caused to slip
and the rollers work unevenly; secondly, when a belt or band breakes, it is carried
through between the rollers and crushes or breaks the carding surfaces, and in
practice the belts require to be removed and replaced long before they are worn
out; and thirdly, the pitch chains which actuate the "workers" impart an inter-
mittent or jerking motion of rotation to these rollers and thereby cause uneven
carding of the fibre.
According to my Invention, these objections are overcome by extending the
various roller shafts beyond their bearings in the side frames of the machine, fitting
the driving gear outside, and employing grooved pulleys and endless ropes or round
bands in lieu of flat bands and plain pulleys.
In the accompanying drawings figure 1 is a side elevation, and figure 2 is a plan
of a double cylinder carding machine fitted with my improvements.
A large grooved pulley A is fitted on the shaft a of each cylinder C at one side
of the machine, and is formed by preference with a double groove as shown in
plan, so that the driving rope or round band B may be passed entirely round the
periphery to ensure proper gripping.
From this large pulley A the driving rope B passes over or round smaller
grooved pulleys D, E fitted on the same end of the shafts d, e, of each stripper S,

page_text: and each fancy roller F, and communicates rotatory motion to these shafts. The
two cylinder shafts a, a are operated in unison by means of ropes b passing round
pulleys A' at the opposite side of the machine. On this side of the machine the
shaft g of the doffer G, and the spindles h of the working rollers H are carried out
beyond their bearings in the framing I, and are fitted with grooved pulleys J over
or round which is passed an endless rope or band K to communicate rotatory
motion from the doffer shaft g to the "worker" spindles h, the doffer shaft being
fitted with a small grooved pulley formed by preference with a double groove, so
that the driving rope may be passed entirely round its periphery.
Each of the ropes or bands employed to drive the various shafts is passed over
guide pulley or pulleys L carried on a lever M by means of which the rope or band
may be tightened up.
Having now particularly described the nature of my said Invention, and in
what manner the same is to be performed, I declare that what I claim is,-The
arrangement of driving gear consisting of grooved pulleys and round bands or
opes for actuating the various roller shafts of carding engines, substantially as
herein described and illustrated.