Year: 1888

page_text: Date of Application, 27th June, 1888
Complete Specification Left, 27th Mar., 1889
Complete Specification Accepted. 27th Apr., 1889
We JAMES EDWARD PLATT of Hartford Works Oldham in the county of Lancaster
Engineer and JAMES FIDLER of the same place Machinist, do hereby declare the nature
of this invention to be as follows:-
Our invention relates to arrangements of apparatus for grinding the revolving flats
employed in carding-engines.
According to our invention we place behind the pulleys situate over the "doffer"
or over the "taker in " and around which the flats are caused to "travel" two other
pulleys placed at such distance apart as will admit of several flats travelling
horizontally between the said pulleys. We arrange upon suitable fixings brackets,
one of such brackets being at one side of the carding-engine and the other at the
other side of the carding-engine. The said brackets are formed of a curve or curves
the same as or similar to that of the flexible bend upon which the flats travel when
carding.
We cause the flats to be moved forward intermittently and to be stationary while
each of the flats is being ground at which time the flat being ground is supported upon
the brackets before referred to.
When being ground each flat is suspended from the surface by which the flat is
While the flat is
supported when at work, the "card wire" being underneath.
stationary we pass a grinding roller underneath the" wire" of the flat. We support the
grinding roller upon adjustable bearings and are thereby enabled to grind the " wire
to any
bevel" which may be required.
33
After the grinding roller before mentioned has ground the flat such grinding roller
will be immediately under the space between the wire of the flat previously ground
and the one next to be operated upon. The flats are now moved forward, the
grinding roller being also moved along with the flats until the flat next to be ground
has arrived upon the centre of the brackets previously mentioned when the grinding
operation above described is repeated. We cause the intermittent motion of the flats
D
27

page_text: by means of a cam, crank or excentric which receives motion from any convenient
part of the carding-engine and gives motion to a connecting rod provided with
a catch or pawl which catch or pawl artuates a ratchet wheel mounted upon the
"notch block shaft" which traverses the flats. The said cam, crank or excentric by
means of a connecting rod gives a continuons backward and forward motion to the
grinding roller or we cause the grinding roller to be moved backwards and forwards
by means of a soparate cam, crank or excentric.
LA m
1000

page_text: We JAMES EDWARD PLATT of Hartford Works Oldham in the County of
Lancaster Engineer and JAMES FIDLER of the same place Machinist do hereby
declare the nature of this invention and in what manner the saine is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Our invention relates to arrangements of apparatus for grinding the "revolving
flats" employed in carding-engines.
"
According to our invention we place behind the pulleys situate over the "doffer
or over the taker in " and around which the flats are caused to travel," two other
pulleys placed at such distance apart as will admit of several flats travelling
horizontally between the said pulleys. We arrange upon suitable fixings, brackets,
one of such brackets being at one side of the carding-engine and the other at the
other side of the carding-engine-The said brackets are formed of a curve or
curves the same as or similar to that of the flexible bend upon which the flats
travel when carding-We cause the flats to be moved forward intermittently and
to be stationary while each of the flats is being ground at which time the flat
being ground is supported upon the brackets before referred to. When being
ground each flat is suspended from the surface by which the flat is supported when
at work, the "card wire" being underneath. While the flat is stationary we pass
a grinding roller underneath the "wire" of the flat-We support the grinding
roller upon adjustable bearings and are thereby enabled to grind the wire to any
which may be required.-After the grinding roller before mentioned has
ground the flat such grinding roller will be immediately under the space between
the wire of the flat previously ground and the one next to be operated upon-The
flats are now moved forward, the grinding roller being also moved along with the
flats until the flat next to be ground has arrived upon the centro of the brackets
previously mentioned when the grinding operation above described is repeated-We
cause the intermittent motion of the Hats by means of a cam, crank or excentric
which receives motion from any convenient part of the carding-engine and gives
motion to a connecting rod provided with a catch or pawl which catch or paw!
actuates a ratchet wheel mounted upon the "notch block shaft" which traverses the
flats The said cam, crank or excentric by means of a connecting rod gives a
bevel

page_text: continuous backward and forward motion to the grinding roller or we cause the
grinding roller to be moved backwards and forwards by means of a soparato cam,
crank or excentric.
In the accompanying drawings Fig. 1 shows in elevation, so much of a carding-
engine as is requisite to illustrate our invention, Fig. 2 is an end elevation upon a
larger scale of a portion of that which is shown in Fig. 1 and Fig. 3 is an elevation
in section upon the line A. A of Fig. 2 and upon a larger scale, of a portion of
that which is shown in Fig. 1. Figs. 4 and 5 are front views of certain parts
shown in Fig. 1-The same letters of referenco are applied to corresponding parts in
all the figures.
Although like parts are applied to opposite sides of the carding-engine we shall
for convenience in many cases only refer to the parts situnte at one side of the
carding-engine.
is
a is the bend of the carding-engine-To the bend a of the carding-engine is
secured a bracket which bracket & supports one end of a shaft e and one end of
a shaft d, the shafts c, d being free to be rotated in the brucket b. Fast upon the
shaft c we mount two pulleyse and fast upon the shaft d we monnt two pulleys -
g is a shaft extending across the width of the carding-engine-This shaft
supported at one end by and capable of being rotated in a
bearing formed in a
bracket secured to the bend a. Upon the shaft g is a wheel of which gears
into or engages with a wheel capable of being rotated upon a stud 7 secured to
the bracket. Fast with the wheel is an excentrick. Embracing the excentric &
is one end of a connecting rod jointed at its other end to an arm m carried by
and capable of being oscillated upon the shaft d. Secured to the arm m is a stud m
mounted upon which is a pawl or click n which "takes into" ratchet teeth o'
formed around the circumference of a wheel o fast upon the shaft d. p. p are the
"notch block wheels," which "notch block wheels" are mounted fast upon the shaft d
and are provided with projections p¹ by means of which the revolving flats / are
caused to travel over the cylinder r of the carding-engine when at work. Secured to
the bracket & by the bolt is a brackets provided with jaws to which bracket sa
cap is secured by means of set screws. Between the and the surface
cup
of the bracket we place a block capable of being slidden between the cap
and the surface. The block is prevented from moving transversely between the
cap and the surface by means of flanges upon such block t. Supported by the
block and free to ho rotated therein is one end of the axle u' of the grinding roller u.
Embracing a boss formed on the block is one end of a connecting rod v, the other
end of which embraces an excentric w fast with the wheel j. Upon the bracket b we
forn a projecting part to which is secured a bar .r. The bar is shown detachel
in Fig. 6. Upon the bar z we form a number of curved surfaces ',', -The
curved surfaces, we form the same as or similar to the curved surface y
of the flexible bendy upon which the flats travel when carding. is a shaft
supported at one end by and capable of being rotated in bearings formed in the
bracket secured to the hond a. Fast upon the shaft are pulleys. The revolving
flats q after leaving the flexible bend y pass around the pulleys e, f and which act
as guide pulleys.
'
Rotary motion being imparted to the shaft g from any convenient part of the carding-
engine such shaft g will by means of the wheels y' and impart rotary motion to the
excentrics & and w. The rotation of the excentrick will by means of the connecting
rod cause the arm m to oscillato upon the shaft d. When tho arm m is moving in
the direction indicated by the arrow B the pawl or click n acting upon the ratchet
teeth of of the wheel o will cause the shaft à to be rotated in the direction indicated
by the arrow B und cause the flats q to be moved in the direction indicated by the
arrow . The excentrick and pawl or click n are so arranged that each revolution of
the excentrick will cause the chain of flats g to advance intermittently so that ut cuch
revolution of the excentrick the flat which was resting upon and supported by the
curved surfaco e' will be caused to rest upon and be supported by the curved surface.

page_text: and at the next revolution of the excentric
the said flat will be caused to rest upon
and be supported by the curved surface -While a flat is stationary and rosting at
one end upon the curved surface and at the other ond upon the corresponding
curved surface of the bar situated at the other side of the carding-engine and
corresponding to the bar .c, the grinding roller u will by the rotation of the excentric to
be traversed in the direction indicated by the arrow D heneath the said flat. When
the grinding roller has been traversed across the surface of the wire of the said flat
and arrived opposite to the space between such flat and the flat next to be operated
upon, the excentric & will by its rotation cause the flats y to be moved in the direction
indicated by the arrow C and the excentric w will by its rotation cause the grinding
roller u to be also traversed in the same direction until the grinding roller u has passed
into the position in which it is indicated in the drawing and a further rotation of the
excentric w will cause the grinding roller u to pass beneath and operate upon another
flat and afterwards a further rotation of the excentrics and to will cause the grinding
roller and the said flat to be advanced in the direction indicated by the
arrow (
Each flat while being ground is suspended from the surface by
which such flat is supported when at work on the cylinder, the card wire being
underneath.
10
The curved surface is placed at such an angle to the plane in which the axis of
the grinding roller is traversed to and fro that the wire surface of each flat
when ground shall be at the required inclination to the surface by which the flat
bears upon the flexible bend y when such flat is in a working position upon the
cylinder.
The bar a may be provided with two or three curved surfaces such as 1, 2, 3 or
the curved surface only may be employed, but we prefer that three of such curved
surfaces,, should be employed in order that while the middle one is being
employed to support the flat, the wire surface of which is being ground, the curved
surfaces and may be employed to respectively support in planes parallel to that
in which the axis of the grinding roller u is traverse, and in such position that the
wire surfaces thereof shall not be acted upon by the grinding roller u, the flat the
wire surface of which has been operated upon and the flat the wire surface of which is
next to be operated upon.
We provide a screw 1 by means of which the grinding roller u may be adjusted
into position by properly operating upon the wire surfaces of the flats.
In order that the flats may be stripped we employ a vibrating comb 2
mounted upon an axle 3 capable of being oscillated in bearings secured to the
brackets b.
The parts which are not applied alike to both sides of the carding-engine are the
excentric, connecting rod 1, arm m pawl n and wheel o.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is :
1. The general combination of parts such as is hereinbefore described by means
of which the flats are moved intermittently and the grinding roller is traversed
under and in contact with the card wire surface of the flat whilst such flat is being
ground.
2. Bars such as x each provided with a curved surface such as . adapted to so
support the flat whilst such flat is being ground, that the wire surface of the flat
shall be so ground that when the flat is at work carding upon the "cylinder" the
wire surface of such flat shall be in correct relation to the surfaces of the flexible
bends upon which the said flat is supported.
3. Bars such as each provided with curved surfaces and preferably three such
asa, adapted to support the flat the wire surface of which has last been ground,
the flat the wire surface of which is being ground and the flat the wire surface of
which is next to be ground, respectively, so that the wire surface of the flat being

page_text: ground shall be so ground that when the said flat is at work carding upon the cylinder
The wire surface of such flat shall be in correct relation to the surfaces of the flexible
bends upon which the said fint is supported and so that the wire surface of the flat
the wire surface of which was last ground and the wire surface of the fint the wire
surface of which is next to be ground shall be in planes parallel to the plane in which
the axis of the grinding rollor is traversed and shall be kept out of contact with the
grinding roller.