Improvements in Apparatus employed in the Covering of Oylinders with Card Fillets.
Year: 1891

page_text: Date of Application, 28th Apr., 1891
Complete Specification Left. 16th Dec., 1891-Accepted, 30th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus employed in the Covering of Oylinders
with Card Fillets.
I JOSEPH STANDRING DRONSFIELD, of the firm of Dronsfield Brothers, of the
Atlas Works, Oldham, in the County of Lancaster, Card Grinding Machine
Makers, do hereby declare the nature of this invention to be as follows :-
:-
My invention relates to the covering of carding engine cylinders with card fillets
and consists of improvements in a former invention for which Letters Patent dated
the Twenty-seventh day of December in the year 1878 and numbered 5283 have
been granted to me. In the process of covering such cylinders the cylinder is
caused to rotate and the card fillet is guided into position so as to be wound under
tension in a close spiral upon the periphery of the cylinder. The rotation of the
cylinder is effected by means of a purchase which is applied to the shaft of the
cylinder. In my improved purchase I fix the large spur wheel upon a driving boss
which is bored to suit the shaft of the cylinder. This driving boss can be removed
and exchanged for a boss bored larger or smaller as may be required. To facilitate
the attachment and removal of the boss it may be formed with a flange and be
secured to the wheel by means of bolts passing through the said flange. In a recess
in a projecting part of the said boss a driving key is seated and is set up by means
of a set screw or of set screws.
"
The centre line of the said key and screw or screws is on one side of and
parallel with a radial from the centre of the boss so that when the spur wheel
is turned in the direction to effect the winding on of the fillet the key "bites in
and establishes a firm driving connection the key holding more firmly and doing
less damage to the shaft than when set screws are used for the purpose.
The
card fillet passes in the first instance through a trough and below a presser
plate. I apply a screw to regulate the pressure of the said plate and transmit
the pressure of the screw to the plate through a block of rubber or a spring so as
to produce a yielding pressure which can be regulated I apply a brake wheel
upon the cone shaft. I prefer to apply friction to such brake wheel by means of a
bored spring clip which is prevented from revolving with the wheel. The pressure
of the clip upon the wheel can be regulated by means of a bolt and nut or by
suitable means as for example I may employ a spring adapted to be regulated or a
lever provided with a movable load. The card fillet passes from the tension
apparatus to the cylinder over a swivel guide pulley. I mount this pulley in a
sliding carriage which is acted upon by a yielding spring.
Any increase in the tension of the fillet causes this pulley carriage to move toward
the cylinder a relaxation of the tension permitting the carriage to slide away from
the cylinder. The movement of the carriage is caused to move an index which
indicates on a scale the changes in the tension.
The scale may be marked to indicate the tension in pounds weight. I prefer to
employ a long index turning upon a stud or pivot and actuated by means of a spur
rack upon the carriage the indications being marked upon a sector scale. A loaded
lever might take the place of the spring the lever being mounted so that the leverage
would increase with an increase of tension.
Dated this 27th day of April 1901.
DUTTON & FULTON,
1, St. James' Square, Manchester, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus employed in the Covering of Cylinders
with Card Fillets.
I JOSEPH STANDRING DRONSFIELD of the firm of Dronsfield Brothers, of the
Atlas Works, Oldham, in the County of Lancaster, Card Grinding Machine
Makers, 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 accoinpanying drawings :
:-
My invention relates to the covering of carding engine cylinders with card fillets
and consists of improvements in a former invention for which Letters Patent dated
the Twenty seventh day of December in the year 1878 and numbered 5283 have
been granted to me. In the process of covering such cylinders the cylinder is
caused to rotate and the card fillet is guided into position so as to be wound under
tension in a close spiral upon the periphery of the cylinder. The rotation of the
cylinder is effected by means of a purchase which is applied to the shaft of the
cylinder.
To render my invention more clearly understood I will now proceed to describe
the same particularly with reference to the annexed two sheets of drawings :
-
passes to the tension conc.
On Sheet 2.
Fig. 4 is a plan of the fillet card mounting head.
Fig. 5 is a side view of the purchase or winding jack by which the doffer or other
cylinder upon which the card fillet is wound can be turned.
Figs. 6 and 7 are views of the improved gripper I use to grip and turn the shaft
of the doffer or card cylinder being clothed.
In the improved head as herein described and illustrated there are certain parts
which have been already described and illustrated in my said former Specification
and certain parts which are new and form inter alia the subject matter of my
present invention. For example the revolving cone a the shunting plate 6 and the
presser trough are all set forth in my former Specification. The purchase or
winding jack in Sheet 2 is also old except as regards the novel form of gripper for
holding and turning the shaft of the doffer or other cylinder being clothed. With
this proviso I will now describe the apparatus.
The revolving cone a is supported in bearings in the sides of the head d so as to
revolve loosely therein. The step 1 of the largest diameter is covered with leather
so that there shall be non-slipping contact with the card fillet as it passes round with
the said step. The other two steps 2 and 3 are turned and smoothed so that the
fillet may slip as it is taken round by the cone. The object of this will be explained
hereinafter.
To the sides of the head and extending across in front of the cone a I bolt
the shunting plate 6 the function of which is to divert the fillet from one step of
the cone to the other as is well understood. The shunting plate is formed at the end
which is nearest to the step 3 with a sole to support the guide trough c through
which the fillet passes to the cone. Under my former Patent I put pressure upon
the cover e of the trough by a weighted lever, but under my present improvements
I use an adjusting screw which passes through an arm pivotted at g' to the
bracket which is secured to the side of the trough. As seen by the plan view Fig. 4

page_text: presses upon
buffer e² of
a stop limits the movement of the arm g. The foot of the screw
a plug which occupies a hollow boss e¹ on the back of the cover.
vulcanised rubber is put beneath the plug h and thus makes the pressure upon the
fillet of an elastic nature. The cover can easily be removel by retracting the
screw and then swinging the arm to one side. The shaft carrying the cone a
projects through one of the bearings and carries a brake pulley i which is embraced
by a split brake strap; which is connected by the stud to the side of the head.
An adjusting bolt passes through the lugs of the split brake strap; for adjusting
เ
the strap to any required frictional drag. A coiled spring between the lugs keeps
the split strap apart against the pinch of the bolt. Thus I can effect any required
resistance to the rotation of the cone a. I now come to the tension indicating part
of the apparatus. This is mounted at the letting off end of the head and consists
of a pulley m having a curved periphery as shown so as to equalise the strain
over the breadth of the fillet. The pulley m is mounted in a jaw bracket n which
is pivotted by a stump o to a carrier p which slides to and fro in bearings 9 9 in a
bracket supported from the side of the head as clearly shown in Fig. 4. The front
of the carrier p constitutes a face plate p' against which the jaw n is pivotted and
held by the bolt which projects from the plate p' and enters a radial slot in the
tail of the jaw n thereby permitting the jaw with its pulley in to be adjusted to any
required angle so as to lead off the fillet properly. The tail of the carrier pis
surrounded between the bearings qq by double coiled springs ss or it might be by
a single coiled spring. To the face plate pl of the carrier I attach a rack & which
meshes with a sector u is formed at the butt end of a pivotted index finger u which
plays over an index w supported from the carrier bracket. The face of the index w
is marked with figures representing degrees of tension from zero up to the
highest tension required. In Fig. 4 the finger is shown at zero. The springs s s
tend always to press out the pulley m to the position shown at Fig. 4 and these
springs are so made and adjusted as to offer graduated resistance to the pushing
inward of the pulley m and carrier. This resistance represents certain degrees of
tension upon the fillet passing over the pulley m and this tension is indicated
on the index by the finger v since the pushing in of the pulley m and carrier
correspondingly moves the rack t which turns the quadrant and index finger. By
adjusting the pressure on the cover of the trough or of the friction strap and
pulley or of both I can adjust the tension on the card fillet to any required degree.
The progress of the card fillet through the apparatus is clearly indicated by the
arrows and by the skewed dotted lines in Figs. 12 and 4. The fillet passes with
the dents upward into the trough c and beneath the presser cover e.
On leaving
the back end of the trough the fillet passes partly around the step 3 of the cone a.
At the front of the cone it leaves the step 3 and passes to the first shunting surface of
the shunting plate 6 by which it is diverted to the next step 2 of the cone. The
succeeding shunting surface transfers it to the last step 1 of the cone a which as has
been said is covered with leather. From this last step the fillet is diverted by the last
shunting surface to the pulley m over which it passes to be coiled upon the cylinder
being clothed. In Fig. 1 the fillet a is seen entering the trough the dotted line
showing its final exit to the cylinder. In Fig. 2 the strongly marked skewed dotted
lines . mark the progress of the fillet through the apparatus. As it passes around
the back part of the cone a the cone revolves with it. Steps 2 and 3 of the cone
being smooth there is a less frictional grip between the fillet and these steps than is
the case with step 1 which being covered with leather has a greater frictional grip
upon
the fillet. The surface speed of step 1 being greater than the surface speeds
of steps 2 and 3 the consequence is that the fillet is drawn round and over the
steps 2 and 3 at a speed slightly greater than their surface speeds so that the fillet
keeps slipping round faster than the steps 2 and 3 rotate. The result is that the cone
becomes a stretching or extending agent progressive in its action upon the fillet from
the least step 3 to the greatest step 1. On leaving the step 1 of the cone a the fillet
is diverted by the last shunting surface of the shunting plate b to the pulley m from
whence it passes to be coiled upon the cylinder being clothed. As the fillet passes

page_text: over the pulley m the tension to which the fillet is subjected by the united influences
of the trough c, brake pulley and strap i j, pulley a and shunt plate b, such tension
acting as a resisting force to the coiling on pull of the cylinder being clothed,
causes the carrier of the pulley m to yield inwards against the resistance of the
graduated springs ss and thereby move the index finger e so as to indicate the
degree of tension on the index 1r. To attain any required degree of tension it is
only necessary to regulate the pressure of the cover in the trough c upon the fillet
or the braking effect of the pulley and split strap i j by means of the respective
screws. A. noticable feature of my apparatus is that I obtain the requisite tension
upon the fillet gradually throughout the length of the portion in the apparatus by
the united effects of the trough, the brake strap, the shunting plate and the stepped
cone. The curved periphery of the roiler m puts the greatest strain upon that part
of the fillet most capable of resisting it viz. the centre and a lesser strain upon the
edges which are not so strong. The doffer or carding cylinder upon which the
fillet is guided and wound by the mounting machine just described does not appear
in the drawings as I do not consider it requisite to show it. Its position relatively
to the mounting head is moreover shown clearly in the drawings attached to the
Specification of my aforesaid prior Patent. I have in Fig. 5 illustrated the
purchase jack by means of which I turn the said doffer or carding engine by hand
principally for the purpose of defining the position and duties of the improved
gripper which is shown separately in Figs. 6 and 7. For the sake of clearness I
may say that the jack can be applied to the shaft of a doffer or carding cylinder
by merely slipping it on the shaft 1 of the cylinder and supporting the outer end
by a prop 2. The spur wheel 3 which surrounds the shaft 1 is rotated by the
indicated gearing from a handle placed on the square end 4 of the spindle which
carries the pinion 5 whereby motion is imparted to the gearing 6 and 7 so as to
drive the wheel 3. The wheel 3 is confined between the sides 8 of the purchase
jack the boss 3* running in bearings in the said sides. The gripper y is intended
to serve as a ready means of connecting the revolving wheel 3 to the shaft 1 so as
to make this shaft 1 revolve with it. The gripper y is therefore in the first place
connected to the boss 3* of the wheel 3 by means of bolts 9 9 9 so that the gripper
is made practically part of this boss 3ª. "The gripper y consists of a ring recessed
in the middle for the sake of lightness and carrying a snug y' into which I screw a
study the bottom of the recess in the snug y containing a key block y³ which is
upheld against the screw by the tail of a spring y. It will be observed from
Fig. 7 that the centre of the gripper and shaft does not come opposite to the
centre of the screw stud and block. The centre of the stud and block are in
advance of the centre of the shaft. The block y' lies rather at an angle to the
centre line of the stud the block being held between the foot of the stud and the
circumference of the shaft. When the gripper is moved round with the spur
wheel 3 in the direction of the arrow, the bite between the foot of the block and
the circumference of the shaft has the tendency to throw the block into a straight
position between the stud and the shaft with the result that the block presses with
great force on the shaft and holds it with a vice like grip compelling it to partake
of the rotation of the gripper. The gripper can be applied to either side of the
boss 3 and can be reversed if it should be desired to reverse the direction of
motion of the shaft.
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 a card fillet mounting machine the means for indicating the amount of
tension imparted to the fillet being mounted said means consisting of the sliding
carrier p provided with a roller m and governed by a spring or springs sin com-
bination with a toothed rack and sector for giving motion to the index finger o for
indicating the tension on a figured index substantially as described and shown.
2. In a card fillet mounting machine in combination with the said tension indicating

page_text: arrangement the roller m having a curved periphery and mounted in a jaw bracket n
pivotted to the sliding carrier p and adjustable thereon by means of the adjusting
bolt and curved slot so as to suit the angle of delivery of the fillet substantially as
described and shown.
3. In a card fillet mounting machine the brake pulley i and brake strap į in com-
bination with the stepped cone a for the purposes and substantially as described
and shown.
C
4. In a card fillet mounting machine the means for imparting pressure to the
cover of the presser trough e said means consisting of the adjusting screw farm
pivotted to the bracket and provided with stop plug and vulcanised rubber
buffer e substantially as described and shown.
5. In a card fillet mounting machine the stepped cone a having the step 1 of
largest diameter covered with leather so as to have greater frictional contact with
the fillet and so draw it with a slipping motion over the steps 2 and 3 substantially
as described and shown.
6. The improved fillet card mounting machine consisting of the combination of
the sliding head d stepped cone a brake pulley and strap ij presser trough e
shunting plate and tension indicating means substantially as described and
shown.
7. In a purchase jack for using in conjunction with a fillet card mounting machine
of the indicated description and for turning the cylinder being clothed the gripper y
containing key block y adjusting screw and spring y substantially as described
and shown.
Dated this 15th day of December 1891
DUTTON & FULTON,
1, St. James' Square, Manchester, Agents.