Carding Engine Flats.
Year: 1886

page_text: Date of Application, 16th Apr., 1886.
Complete Left, 15th Jan., 1887.
Complete Accepted, 22nd Feb., 1887.
for Carding Engine Flats.
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 do hereby declare the nature of this Invention to be as follows:-
Our Invention relates to the metal bars to which the card clothing is attached to
form the travelling flats used in carding engines as is well understood. It is of
advantage that the edges of these bars shall be straight smooth and parallel with each
other. To render the said edges true we employ apparatus provided with revolving
emery wheels or grinders and with means for clamping or holding the bars whilst the
edges are being ground the grinders or the bars being mounted upon carriages which
are fitted to slide in a straight line. For the purposes of our invention we prefer to
employ a modification of the machine illustrated by Figs. 6 to 10 in the drawings
attached to the Specification of a former invention for which Letters Patent No. 4507
of the year 1880 have been granted to us. Such modified machine is provided with
an annular grinder the flat face thereof being used as the grinding surface. The
grinder spindle is mounted to revolve in bearings upon a carriage which is fitted to
slide upon a suitable bed and is traversed thereon to and fro in a straight line. The
bar is clamped or held upon a sliding carriage which is mounted to slide upon a
suitable bed or the said bar is held by two carriages arranged to slide in parallel lines
and this plan we consider to be more suitable. Each carriage is set up or actuated by
means of a screw or of a rack and pinion or by suitable means and such actuating
means may or may not be connected so as to act in unison. As the grinding proceeds
the bar is set up by moving its carriages toward the grinder until further movement is
arrested by adjustable stops. The grinder spindle is provided at each end with a
grinder so that two bars can be acted upon at once. One edge of a bar can be trued

page_text: by one grinder and the other edge of the bar by the other grinder so that the said edges
are rendered true and parallel and a number of bars can be made of uniform width
with the same adjustment of the stops. We do not confine ourselves to the
simultaneous grinding of two bars in one machine nor to any special form of emery
wheel or grinder. We might operate simultaneously upon the two edges of a bar by
means of grinders arranged to be set up toward the bar the grinder carriages or by
preference the bar carriage sliding in straight lines or in a straight line.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.
Improvements in the Method of and in Apparatus for Trueing Bars
for Carding Engine Flats.
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, 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 metal bars to which the card clothing is attached to
form the travelling flats used in carding engines as is well understood. It is of
advantage that the edges of these bars shall be straight smooth and parallel with each
other. To render the said edges true we employ apparatus provided with revolving
emery wheels or grinders and with means for clamping or holding the bars whilst the
edges are being ground the grinders or the bars being mounted upon carriages which
are fitted to slide in a straight line.
The nature of our invention and the operation of the means whereby we carry
the same into effect will be clearly understood from the following description of the
accompanying drawings. In the said drawings Fig. 1 represents an end elevation
and Fig. 2 a plan of the machine which we use for the purposes of our invention.
The standards or supports for the machine not being of importance are left out of
the drawings. The machine represented is a modification of the machine which was
illustrated by Figs. 6 to 10 in the drawings attached to the Specification of a former
invention for which Letters Patent No. 4507 of the year 1880 have been granted to us.
In the accompanying drawings a is a planed bed which is formed with
vee
edges

page_text: and 6 is a carriage which is fitted to slide to and fro upon the said bed. In pedestals
or bearings upon the said carriage is mounted a spindle e which when the machine is
in operation receives a rapid revolving motion from a driving belt which operates
upon a pulley d. To each end of the said spindle is secured a grinder e one of these
grinders being represented in section in order to show its formation and the manner
in which it is secured to the shaft. The grinder is made of consolidated emery and is
moulded into a dished form so as to obtain an annular grinding face on one side. The
grinder is clamped between two metal washers by means of a nut upon the end of
the shaft and one of these washers is formed with a hoss which is bored to fit the shaft
and is keyed thereon or is suitably attached thereto or the said washer might be formed
as a collar in one piece with the shaft. To the sides of the bed a are fixed brackets g
which are planed to receive sliding carriages which sustain the flat bars during the
operation. Each pair of carriages on one side of the bed is adapted to carry a bar i.
To the top of each carriage is secured a stop piece k of any suitable form or such part
may be in one piece with the carriage. The bar to be operated upon is placed with its
iwo ends resting upon the two carriages and bearing against the stops kk. Whilst
in this position the bar is clamped down upon the carriages by means of suitable screw
clamps 7. Screws m are mounted in the brackets y and engage with nuts upon the
said carriages so that by turning the screws by means of hand wheels or handles the
said carriages can be moved toward or from the grinders. Upon each bracket g is
fixed a stop n which limits the movement of the carriage upon the bracket in the
direction foward the grinder. These stops are arranged to be adjustable so that the
movements of the two carriages can be arrested at any desired point. When adjusting
these two stops they are set so that the surfaces which act as stops shall be exactly
parallel with the line of movement of the main carriage b. The last named carriage is
moved to and fro upon the bed by means of an endless chain o which receives motion
through bevel spur wheels and a chain wheel from the shaft p as in the machine
described in our said former specification and hereinbefore referred to. In adjusting
the parts preparatory to the grinding operation the stops n n upon one side of the
machine are adjusted for the grinding of one edge of the bar and the corresponding
stops on the other side for the grinding of the other edge. A bar is clamped to the
carriages on one side and the screws in are turned as near as may be in unison until
the annular face of the grinder touches the exposed edge of the flat bar. As the
grinder traverses to and fro the carriages are set up at suitable intervals until they
bear against the stops. The traversing of the grinder whilst the two carriages so
hear against the said stops will cause the flat bar to be finished with a true straight
edge and if the beds upon which the said bar rests are parallel with the axis of the
shaft c the said edge will be square with the face of the said bar. The bar is then
removed to the other side of the machine and clamped upon the other carriage with
the edge which has been ground in contact with the stops k. The parts having been
operated in the indicated manner to grind the exposed edge the bar is removed from
the machine and if the adjustments have been correct and the operation has been
conducted with due care the bar will be finished with true straight and parallel edges.
If preferred the bar may be mounted upon a single carriage made of suitable propor-
tions and guided to move in a straight line. The means for actuating the carriages h
may be varied and if preferred the two screws m m on the same side of the machine
may he connected to move in unison by such means for example as a cross shaft and
bevel wheels or the carriages might be actuated by means of pinions upon a cross shaft
gearing with racks upon the carriages. It will be readily understood that a number
of bars can be made of uniform width with the same adjustment of the stops n. The
said stops are adjusted to provide for the wearing of the grinders or if preferred the
latter might be adjustable upon the spindle c. We do not confine ourselves to the
simultaneous grinding of two bars in one machine nor to any special form of emery
wheel or grinder nor to the relative position of the axis of the grinder spindle whereby
the flat face of the grinder is used. We might operate simultaneously upon the two
edges of a bar by means of grinders arranged to be set up toward the bar the

page_text: grinder carriages or by preference the bar carriage sliding in straight lines or in a
straight line.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed we declare that what we claim is :-
(1) In apparatus for trueing the edges of the flat bars of Carding Engines carriages
or a carriage adapted to hold a flat bar and to slide toward and from a revolving
grinder which is mounted and carried so as to move in a straight line in order to
operate upon the full length of the bar edge adjustable stops arresting the movement
of the carriage or carriages to limit the extent of the grinding.
(2) In such apparatus the duplex arrangement whereby two bars are operated upon
simultaneously by the action of two grinders fixed upon the two ends of a grinder
spindle and operating by the contact of the flat faces of the grinders with the edges of
the bar substantially as set forth and indicated.
(3) In such apparatus revolving grinders to grind the edges of the flat bars each
edge being ground separately or both together the grinders or the grinder in each case
or the flat bar being traversed in a straight line in combination with adjustable stops
whereby a number of bars can be consecutively ground so as to be parallel from end
to end and of the same width.
(4) The combination of parts substantially as and for the purpose set forth and
indicated hereinbefore and in the accompanying drawings.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.