Year: 1887

page_text: Date of Application, 26th Feb., 1887
Complete Left, 25th Nov., 1887
Complete Accepted, 27th Dec., 1887
We EDWARD WRIGHT WRIGLEY of Thornycroft, Cotton Spinner, and ROBERT
PATTERSON of 58 Greengate Street, Mill Manager, both of Oldham in the County of
Lancaster do hereby declare the nature of this invention to be as follows
--
The object of this invention is to construct an improved kind of indicator applicable
to the flexible bends which support the ends of the "flats" of carding engines, so as
to enable the card surface of the "flats" to be set with the greatest accuracy and
absolutely concentric with [the main cylinder, and to indicate exactly "how they
are set."
These flexible bends are usually mounted upon three brackets one at or near each
end, and one at the centre. The latter is fixed and the bend is adjusted thereto by
means of a screw, and the two outer brackets work in slides on the fixed bend or
frame and these brackets are also adjusted by means of two screws. Pins or studs
fixed in these brackets, work in slots made in the flexible bend at or near each end.
The flexible bend is adjusted by turning these three screws.
Our invention consists principally of a vertical finger or pointer which moves upon
a pivot at one end and its free end works in front of a fixed graduated index plate or
quadrant.
The lower end of this finger or pointer is provided with a short arm at about a
right angle to the finger, and this arm is made with a short slot in a horizontal position
or nearly so, in which works a pin in connection with the flexible bend.
It will be readily understood that a very slight movement of this pin in a vertical
or radial direction will give a considerably increased lateral circular movement to the
point of the finger, and by these means the slightest. movement of the bend is
registered, and hence, perfect accuracy of adjustment at each setting point to the
circumference of the main cylinder can be obtained.
We may here observe that in those indicators which we have already made according
to our invention each mark or graduation on the index plate represents one four
hundred and fiftieth part of an inch in the adjustment of the flexible bend.

page_text: The connection between the pin or stud which works in the slot of the index arm
is as follows.
In the fixed central bracket the index plate is fixed to the bracket and the pin or
stud is fixed to the flexible bend, and works through a vertical slot in the bracket;
whilst in the case of the end sliding brackets, the pin or stud is fixed in the said
bracket and the index plate is carried by an outer bracket in front of the sliding
bracket, which outer bracket is bolted to the fixed bend or framing; so that in
either case the slightest movement of the bend is communicated by means of the
pin or stud to the finger or pointer.
We may here remark that the short slotted arm may (if desired) be in a line with
the finger or pointer instead of right angles thereto, in which case the fingers or
pointers and their index plates would lie horizontally or nearly so, but we prefer the
arrangement previously described.
A modification may also be made by fixing the finger or pointer and allowing the
pin or stud to move the graduated index plate.
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
An Improved Indicator for the Flexible Bends of Carding Engines.
We EDWARD WRIGHT WRIGLEY of Thornycroft, Cotton Spinner, and ROBERT
PATTERSON of 58 Greengate Street Mill Manager, both of Oldham in the County of
Lancaster 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 construct an improved kind of indicator applicable
to the flexible bends which support the ends of the flats" of carding engines, so as
to enable the card surface of the "flats to be set with the greatest accuracy and
absolutely concentric with the main cylinder.
These flexible bends are usually mounted upon three brackets, one at or near each
end and one at the centre. The latter is fixed and the flexible bend is adjusted therein
by means of a screw; and the two outer brackets work in slides on the fixed bend or
frame, and these brackets are also adjusted by means of two screws.
Pins or studs fixed in these brackets work in slots made in the flexible bend at or
near each end, and the said bend is adjusted by turning these three screws.
Sometimes more than three brackets and screws are employed.
.
Our invention is applicable to this class of flexible bend its action being to indicate
the exact amount of turn given to each screw so that they shall all be set precisely in
unison and hence the curve given to the bend shall always be absolutely concentric
with the cylinder.
The nature of our said invention and the manner in which the same is to be or may
be performed will be readily understood on reference to the annexed sheet of drawings
and the following explanation thereof.
Fig. 1. is a side elevation of part of the frame or fixed. bend and the flexible bend
of a carding engine with one of our indicators shewn as attached thereto, the position
of the two others being shown in dotted lines.
Fig. 2. is an elevation of our indicator drawn to a larger scale and having the cover
plate removed.
Fig. 3. is a vertical section and Fig. 4. an elevation of the same complete. a, a is
part of the fixed bend and b, b is the flexible bend. c, c is the fixed central bracket
and d, d are the movable end brackets, e, e are the adjusting screws.
Our invention (see Figs. 2. 3 and 4) consist principally of a vertical finger or
pointer ff which moves upon a pivot g, g at one end, and its free end works in front
of a fixed graduated index plate or quadrant, h. The lower end of this finger or
pointer is provided with a short arm i, i at about a right angle to the finger, and
this armi, i is made with a short slot in a horizontal position or nearly so, in which
works a pin k in connection with the flexible bend b, b.
It will be readily understood that a very slight movement of the pin k in a vertical
or radial direction will give a considerably increased lateral circular movement to the
point of the finger f, and by this means the slightest movement of the bend b, b is

page_text: registered, and hence perfect accuracy of adjustment to the circumference of the
main cylinder can be obtained.
We may here observe that in those indicators which we have already made according
to our invention each mark or graduation on the index plate represents one four
hundred and fiftieth part of an inch in the adjustment of the flexible bend.
The connection between the pin or stud k, which works in the slot of the index
arm i, and the bend b, bis as follows.
For the fixed central bracket c, c the index plate is fixed to the said bracket and the
pin or stud k is fixed to the flexible bend b, band works through a vertical slot lin
the bracket; whilst in the case of the end sliding brackets d, d, the pin or stud k is
fixed in the said bracket and the index plate h, his carried by an outer bracket m, m
(in front of the sliding bracket d, d) which outer bracket m, m is bolted and pinned
to the fixed bend or framing a, a, the slot I being in this bracket m, m so that in
either case the slightest movement of the bend b, bis communicated by means of the
pin or stud to the finger or pointer f, f.
We may here remark that the short slotted arm i, i may if desired be in a line with
the finger or pointerf, instead of at right angles thereto, in which case the fingers
or pointers and their index plates would lie horizontally or nearly so, but we prefer
the arrangement previously described.
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 :-
The combination, for the purpose of an indicator for flexible bends for carding
Engines, of a fixed dial plate or quadrant with a movable pointer or indicator actuated
directly by the movement of the sliding bracket or of the flexible bend itself.
Dated this 24th day of November 1887
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicants.