Improvements in the Driving Gear of Carding Engine Calender or Delivery Rollers.
Year: 1890

page_text: Date of Application, 1st May, 1890
Complete Specification Left, 31st Jan., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Driving Gear of Carding Engine Calender or
Delivery Rollers.
We, GEORGE ASHWORTH and ELIJAI ASHWORTH, of the firm of Ashworth
Brothers, of the Moss Brook Works, Collyhurst, Manchester, in the County of
Lancaster, Engineers, and ROBERT ASHWORTH, at present of 26, Perth Street,
Cheetham, Manchester aforesaid, Engineer, do hereby declare the nature of this
invention to be as follows:-
-
Our invention relates to the driving of the calender or delivery rollers which
draw away the doffed fleeces in carling engines. We have found that the
delivery of the fleece from the doffer to the calendar rollers is subject to climatic
and other influences so that whilst at one time the fleece is not taken off with
sufficient rapidity so that it is liable to sag or to fall down between the doffer
and the rollers at other times the fleece is drawn forward at a suitable rate.
So far as we are aware no means have hitherto been provided for effecting the
slight variation in the speed of the rollers which would be required to prevent
the at times excessive sagging of the fleece. We propose to obviate this defect
by imparting motion to the rollers through gearing which can be readily changed
to produce the required acceleration or retardation in the speed of the rollers.
Upon the driven roller shaft we secure two spur pinions which differ in the
number of their teeth to the extent of one two or more teeth as may be found
to be most suitable. Each of these pinions is in gear with an intermediate and
the two intermediates are mounted upon a swivel plate which can be turned so
as to bring either one of the intermediates into gear with a driving wheel which
is broad enough to gear with both intermediates. The said swivel plate is
mounted to turn upon the axis of the said roller shaft so that by turning the
plate in one direction or the other either intermediate may be brought into gear
and the rollers be driven faster or slower. The gearing may be varied by
using one broad pinion upon the end of the roller shaft the intermediates gearing
separately with two driving wheels differing in diameter or differential intermediates
might be employed. When the swivel plate is moved into an intermediate
position the driving of the rollers is arrested. We provide means for locking
the plate in either of its three positions but such means may be greatly varied.
In one arrangement we employ a sliding spring locking stud which takes into
holes in the swivel plate the ends of a curved slot or suitable stops preventing
the plate from being moved too far in either direction. In another arrangement
a hinged locking catch taking into notches in a quadrant is mounted upon the
swivel plate so as to be in position to be acted upon when the handle upon the
swivel plate is grasped, or a locking lever carried by the swivel plate handle
may be connected with the said locking stud. The swivel plate may be mounted
to turn upon the boss of the end bearing for the roller shaft or a boss upon
the plate may be seated in a bored recess in the framing the bearing for the
shaft being formed in the swivel plate but we do not confine ourselves in respect
of such details.
We do not confine ourselves to the direct application to the roller shaft so
long as the roller driving motion is transmitted through the differential apparatus.
Dated this 30th day of April 1890.

page_text: COMPLETE SPECIFICATION.
Improvements in the Driving Gear of Carding Engine Calender or
Delivery Rollers.
We, GEORGE ASHWORTH and ELIJAH ASHWORTH, of the firm of Ashworth
Brothers, of the Moss Brook Works, Collyhurst, Manchester, in the County of
Lancaster, Engineers, and ROBERT ASHWORTH, at present of 26, Perth Street,
Cheetham, Manchester aforesaid, Engineer, 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:-
Our invention relates to the driving of the calender or delivery rollers which
draw away the doffed fleeces in earling engines. We have found that the
delivery of the fleece from the dofler to the calender rollers is subject to climatic
and other influences so that whilst at one time the fleece is not taken off with
sufficient rapidity whereby it is liable to sag or to fall down beneath the doffer
and the rollers at other times the fleece is drawn forward at a suitable rate.
So far as we are aware no means have hitherto been provided for effecting the
slight variation in the speed of the rollers which would be required to prevent
the at times excessive sagging of the fleece. We propose to obvinte this defect
by imparting motion to the rollers through gearing which can be readily
altered to produce the required acceleration or retardation in the speed of the
rollers.
The nature of our invention and the manner in which we carry the same into
practical effect will be readily understood when the following description is read
with reference to the accompanying drawings. In the said drawings Fig. 1
represents a front elevation of our two speed motion and Fig. 2 a plan of the
same. In the said figs, a represents a part of the periphery of the ordinary
spur wheel upon the doffer cylinder shaft and is the outer end of the calender
roller shaft. To the under framing of the engine we securo a bracket or
plate which carries intermediate parts of the motion and is provided with a wheel
casing or shield d'. To the said bracket is secured a stud e on which is mounted a
broad intermediate spur wheel. Upon the same stud an arm g is mounted and
upon or to the outer end of this arm a tubular stud is formed or fixed. Upon this
last named stud a spur wheel is mounted this wheel gearing with the two wheels
and serving as an intermediate whoreby the wheel is caused to revolve in the same
direction as the wheel a. A bolt passes through the said tubular stud and through
a curved slot in the bracket and serves when tightened to secure the arm g in its
adjusted position. By adjusting the said arm around the stud e to the required
extent the wheel can be readily and quickly brought to gear properly with the
wheel a after adjustment of the doffur. Upon the roller shaft bare fixed two
wheels which differ in the number of their teeth to the extent of one two or
more teeth as may be considered or found to be most suitable. In the example
illustrated the wheel has 24 teath and the wheel & has 20 teeth. Each of theso
whoals gears with an intermediate or as the case may be, these intermediates
being mounted to revolve upon stands which are fixed to a swivel plate m. The said
swivel plate is mounted to turn upon the axis of the roller shaft b so that by turning
the swivel plate in one direction or the other either one of the intermedintes
can be brought into gear with the wheel. In the example the swivel plate is
formed with a long boss m which is turned to fit and to turn in a hole bored in the
framing. In this boss is bored a bearing for the shaft b. We have adopted this
method of mounting the swivel plate as it provides that the plate shall be firm and
steady but we do not confine ourselves to such method. The swivel plate is
provided with a handle m³ of any suitable form whereby the plate can be moved to
change the gearing. We prefer to limit the movements of the swivel plate so as to
prevent the wheels being caused to gear too deeply. Fig. 3 illustrates the method

page_text: we have adopted for this purpose. In the swivel plate we drill three holes marked
1, 2, 3, in Figs. 1 and 3.
These holes are formed on a curved line which is struck from the axis of the
shaft b so that all the holes are the same distance from such axis. The holes are
connected at the back of the plate by a curved slot the ends of the holes 1 and 3
forming the ends of the slot.
n
22
12
A sliding bolt a mounted in a fixing n¹ by entering one of the holes serves to lock
the swivel plate in any one of three positions a spiral spring shooting the bolt into
locking position. When the swivel plate is to be shifted the bolt is drawn back
but this movement is limited so that the bolt can not be withdrawn clear of the
curved slot which therefore limits the movements of the swivel plate. It will be
seen that when the bolt is in the hole 1 the parts are in the position shown in the
drawings the wheel gearing with the wheel and consequently the calender rollers
will be revolved at the quick speed on the other hand when the bolt is in hole 3 the
wheel will gear with the wheel and the calender rollers will be revolved at a
slower speed. When the bolt is in hole 2 the roller shaft will be disconnected from
the driving gear and therefore will not revolve. We do not confine ourselves to the
exact arrangement of gearing as such arrangement may be varied without interfering
with the result obtained as for example we may apply one broad pinion upon the
end of the shaft and substitute two wheels varying in diameter for the broad
wheel for a differential wheel or two wheels varying in diameter might take the
place of one of the wheelska wheel of single width acting as the wheel. The
arrangement of the gearing in such a modification is indicated by the diagram
Fig. 4. If preferred the gearing may be simplified by dispensing with wheels and h
the proportions of the other gearing being altered so that the intermediates
on the swivel plate could gear directly with the wheel a but it will be seen that in
such a case the movements of the swivel plate would vary in consequence of the
necessity for the adjustment of the doffer. In place of the means for locking the
swivel plate we might use a hinged locking catch taking into notches in a fixed
quadrant which would be concentric with the axis of the shaft or we might use
other suitable means.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
1. The combination of parts substantially as and for the purpose set forth and
indicated.
2. In a carding engine fixing two differential wheels upon the end of the driven
calender roller shaft and mounting two intermediates upon a swivel plate or part
which can be moved so as to connect either of the differential wheels with a common
driver substantially as and for the purpose set forth and indicated.
3. In a carding engine communicating motion to and from the doffer to the
calender rollers by means of two speed gearing and arranging that either the higher
or the lower speed gearing may be brought into action by shifting a swivel plate or
carrier provided with two intermediates either of which can be brought into gear
with the driver substantially as set forth.
Dated this 30th day of January 1901
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.