Improvements in Apparatus for Grinding the Flats of Carding Engines.
Year: 1889

page_text: Date of Application, 17th Jan., 1889
Complete Specification Left, 17th Oct., 1889-Accepted, 23rd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Grinding the Flats of Carding
Engines.
1 JOSEPH SEEL, Representative of John Whiteley and Sons of Brunswick Mills:
Halifax in the County of York, Card Makers, do hereby declare the nature of this
invention to be as follows:-
The object of this invention is to grind the face of the card clothing of the "flats"
so that they will work perfectly true with the surface of the main cylinder in carding
engines, such as are provided with what are known as revolving or travelling "flats."
Hitherto the working surface of the wires of such" flats" when ground on the
carding engine has usually been uppermost, and the consequence has been that
the slightest amount of deflection in the "flat" caused the wire clothing to be ground
down less at the centre and more towards the two ends, and when these "flats" came
into working position with their faces downwards towards the cylinder the deflection
took place in the reverse direction thereby doubling the inaccuracy.
kr
My invention is intended to remedy this defect, and for this purpose to grind the
working face of the wires of tho "flats" with their faces turned downwards as they
are when in working position, so that the deflection (if any) will be always in the
same direction, and the face can thus be ground perfectly flat and level from one end
to the other.
For carrying out this object I attach to, or cast with the bracket or fixing which
carries the rollers or pulleys round which the "flats" travel, a guide having a flat
surface tangential to the lowest part of the circumference of the said roller or pulley
(or rather lower) and another part curving so as to guide the flats in their proper
direction.
The flat portion of this guide may be above the ends of the flats, and the ends may
be pressed upwards against the same by strong springs; or the corresponding portion
of the guiding surface between the curve of the pulleys and the curve of the guide
may be arranged below the ends of the "flats" which will then rest upon the same as
they travel along.
33
A grinding roller is mounted in adjustable bearings, beneath this flat or corre-
sponding portion of the guide in such a position that as the "flats
faces of their card clothing will be brought into contact therewith.
pass along, the
The flats in passing froin the rollers or pulleys to the curved portion of the guides
(or vice versa) are thus caused to pass over the grinding roller with their card faces
in contact therewith and in a right line so that the working faces of the wire will be
ground to a true surface as required.
DL: teil
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1000
GEORGE DAVIES,
4, St. Ann's Square, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Grinding the Flats of Carding
Engines.
I JOSEPH SEEL, representative of John Whiteley and Sons of Brunswick Mills
Halifax in the County of York Card 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 :-
The object of this invention is to grind the face of the card clothing of the flats so

page_text: that they will work perfectly true with the surface of the main cylinder in carding
engines such as are provided with what are known as revolving or travelling "flats."
Hitherto the working surface of the wires of such "flats "when ground on the
carding engine has usually been uppermost and the consequence has been that the
slightest amount of deflection in the "flat" caused the wire clothing to be ground
down less at the centre and more towards the two ends, and when these flats came
into working position with their faces downwards towards the cylinder, the deflection
took place in the reverse direction, thereby doubling the inaccuracy.
I am however aware that attempts have been made with more or less success, to
remedy this defect by grinding the "flats" on the carding engine with their faces down-
wards whilst passing from one roller or pulley to another above the taker-in, and
therefore I lay no claim to the mere fact of grinding the flats upon the engine in
this particular position although I propose to grind the "flats in this position, so
that the deflection, if any, will be always in the same direction, and the face will
thus he ground perfectly flat and level from one end to the other.
22
The nature of my said invention and the manner in which the same is to be
performed will be readily understood on reference to the annexed sheet of drawings
and the following explanation thereof.
Fig. 1. on the drawing is a section of so much of the "taker-in" end of a carding
engine as is necessary to illustrate the application of my invention thereto, and Fig.
is a similar view of a modification thereof hereinafter explained.
a is part of the main carding cylinder and the dotted circle shows the position
of the "taker-in-c is part of the chain of endless travelling or revolving "flats"
and d is the bottom roller or pulley round which such chain of "flats passes.
For the purpose of-my-invention.I attach to or cast with the bracket e which carries
the bottom carrier roller or pulley d, a guide f having a flat surface tangential or
nearly so to the circumference of the said roller or pulley (or rather lower) and
another part which is carved-in such a form as to receive the flats and guide
them in their proper direction over the straight portion thereof towards the roller-
or pulley d.
"
The flat portion of this guide may be above the ends of the "flats as shown at
Fig. 1. or it may be below the same as shown at Fig. 2.
In the former case (Fig. 1.) the ends of the flats are pressed upwards against the
flat part of the guide by strong springs 9 as they pass the grinding roller_h, or
the corresponding portion of the guiding surface between the curve of the roller or
pulley d may be arranged below the ends of the "flats" which will then rest upon.
the same as they travel along.
In the former case that part of the "flat" c which is pressed upwards against the
flat part of the guide is so formed that its upper surface is parallel to the required
surface of the wire but at a slight angle to the surface of the "flat" which moves in
contact with the "bend" when working, so as to give the required "set" to the
"flat."
In the latter case (see Fig. 2) as the face of the "flat" is provided with a rib
along one side to give the required "set" a step * is made in the flat part of the
guide to level each "flat" as it passes over the grinding roller h.
The axis of the grinding roller is supported in the former case by a sliding
bearing adjustable by means of a screw and in the latter case by a lever l also
adjustable by means of a screw m, the grinding roller in either case being fixed in
such a position that the "flats" pass along the corresponding portion of the guide
and are held against the same by the weight n or by the spring g, the faces of their
card clothing will be brought into contact therewith.
The flats in passing from the curved portion fx, of the guides to the rollers or
pulleys d are thus caused to pass over the grinding roller with their card faces in
contact therewith, the "flats" passing along in a right line and with their leading
edge slightly raised, so that the face of the wire will be ground to a true surface and
at the proper angle to give the "set" required.

page_text: 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 :-
First. The combination with the carrier roller or pulleys round which the "flats"
pass above the "taker-in," of fixed guides partly curved and partly flat and tangential
or nearly so to the circumference of the said roller or pulley for the purpose of
receiving the "flats" and guiding them in a right line above and in contact with the
grinding roller substantially in the manner and for the purpose hereinbefore
particularly set forth and described, and illustrated by the drawings annexed, and
Secondly. I claim the general construction and arrangement of parts constituting
my improved apparatus for grinding the "flats" of carding engines with their faces
in a downward position as when working substantially as described and illustrated.
Dotal thin 14th Jane of Outshon 1000
GEORGE DAVIES,
4, St. Ann's Square, Manchester, Agent for the Applicant.