Improvements in Carding Engines.
Year: 1892

page_text: Date of Application, 7th May, 1892
Complete Specification Left, 14th Dec., 1892-Accepted, 14th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Carding Engines.
JOHN MUIR HETHERINGTON, of Vulcan Works, Pollard Street, Manchester, in
the County of Lancaster, Engineer, do hereby declare the nature of this invention
to, be as follows:-
The driving of the taker-in & doffer of carding engines for carding cotton or
other fibrous material by one continuous band. This I effect by placing on the
cylinder shaft a band pulley which gives motion to a band or rope, this band then
passes round a pulley on the taker-in shaft & from thence round the pulley that
drives the doffer, returning from this pulley it again passes round the pulley on the
taker-in shaft which has two grooves placed in it to keep the bands or ropes
separate & returns again to the cylinder. By putting a double grooved pulley on.
the cylinder & three grooves on the taker in pulley-I can obtain additional power
to drive the various parts-but even with the single groove upon the cylinder
pulley the band passes twice round the pulley on the taker-in & I thus obtain a
more effectual result than is obtainable with a crossed belt between the cylinder &
taker-in.
Dated this Sixth day of May 1892.
COMPLETE SPECIFICATION.
Improvements in Carding Engines.
I JOHN MUIR HETHERINGTON, Mem. Inst. C.E. of the Vulcan Works, Ancoats,
Manchester, in the County of Lancaster, Machine Maker, do hereby declare the
nature of this invention 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 an improved method of driving the taker-in and
doffing cylinders of carding engines by means of a continuous driving band actuated.
by a pulley on the shaft of the main cylinder.
In order that my invention may be clearly understood I have attached hereto two,
sheets of drawings which plainly illustrate the improvement.
Fig. 1, Sheet 1, is a diagramatic side elevation of a carding engine main cylinder
together with the taker-in and doffing cylinder.
Fig. 2 is a plan of these cylinders showing in addition the plan of the engine
framing.
Figs. 3 and 4, on Sheet 2, illustrate a slight modification in the invention.
The main cylinder is marked a, the taker-in and the doffer c. I fix a grooved
pulley d on the end of the main cylinder shaft a similar but smaller pulley
e on the
shaft of the taker-in, and another pulley fon a shaft which is connected by the usual
or by suitable gearing to the shaft of the doffing cylinder c which is thus revolved.
To effect the driving of these parts 1 employ a continuous or endless band which
goes partly around the pulley d, thence partly around the pulley e, and thence to
the pulley. From the pulley the band g returns to the pulley e passing round
another groove therein so as to keep the laps of band separate and from thence it
returns to the pulley d thus completing the circuit. The entire circuit of the band
is clearly indicated by the diagram Fig. 1 on Sheet 1. Thus both the taker-in
and the doffer are driven by one continuous band. It will be observed that with
the described arrangement the pulley of the taker-in b is twice visited by the
I Prime 827

page_text: driving band in each circuit of the band so that I can apply more driving power
thereto than is the case when employing the usual crossed belt between the main
cylinder and the taker-in pullies.
Figs. 3 and 4 on Sheet 2 of the drawings illustrate the means I adopt to apply
additional driving power to the taker-in and also to tighten up the band. I place a
triple grooved pulley e' on the taker-in shaft and a carrier pulley / at the point
shown in Fig. 3. The driving band g proceeds from the main cylinder pulley d
first round one groove of the pulley e then round the pulley then back to another
groove in the pulley e¹ then down to the carrier pulley, then back round the third
groove in the pulley e', finally joining at the starting point of the band from the
pulley d. The carrier pulley h is preferably mounted so that it can be adjusted to
take up the slack of the continuous band.
In some cases where it is desired to drive only the taker-in pulley e from the
main cylinder 'pulley d I prefer to provide the carrier and tightening pulley h and
pass the band round the same so as to tighten up and adjust the band and also
with the
provide for the requisite extra amount of driving contact of the band
taker-in pulley. The arrangement is practically the same as that shown in
Fig. 1 except that the carrier pulley h is substituted for the doffer pulley f.
A tightening pulley might be added to the arrangement illustrated by Figs. 1
and 2.
I do not confine myself to the exact courses of the bands as illustrated and
described as such may be varied so long as the band passes more than once partly
round the taker-in pulley in each circuit. By way of example I may state that the
band after passing the second time over the pulley b might pass below a tightening
pulley to the pulley d and if considered to be advisable might pass again over the
pulley b so as to make two contacts with the pulley d and three with the pulley b in
each circuit.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In carding engines driving the taker-in and the doffer from the main cylinder
shaft by means of an endless band passing once over the main cylinder pulley twice
over the taker-in pulley and once over the doffer driving pulley substantially as
herein before described and as illustrated in Sheet 1 of the drawings.
2. In carding engines the use of a pulley for tightening up an endless band
operated from the main cylinder shaft and employed to drive the taker-in and the
doffer by which arrangement also the band is brought thrice into driving contact
with the grooves in the taker-in pulley substantially as described and as illustrated
on Sheet 2 of the drawings.
3. In carding engines driving the taker-in by means of an endless band with or
without the use of a tightening pulley the band making two or more driving contacts
with the taker-in pulley and one or more with the driving pulley on the main cylinder
shaft in each circuit substantially as set forth.
Dated this 13th day of December 1899
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.