An Improved Stop Motion for Carding Engines.
Year: 1889

page_text: Date of Application, 21st Nov., 1889
Complete Specification Left, 23rd May, 1890-Accepted, 5th Jufy, 1890
PROVISIONAL SPECIFICATION.
An Improved Stop Motion for Carding Engines.
I JOB BOON of 86 Hillkirk Street, Beswick Manchester in the County of
Lancaster, Mill Manager, do hereby declare the nature of this invention to be as
follows:-
."
This invention relates to an improved stop motion to be applied to carling engines
for the purpose of stopping the revolution of the doffing cylinder and the feed motion
whenever the sliver or end breaks or becomes too thin, or if the same should become
too thick or otherwise obstructs or chokes the trumpet guide.
Instead of mounting the trumpet guides in a fixed plate as usual I hang the plate
from pivots or hinges above so that the "pull" or friction of the sliver passing through
the trumpet shall give the plate a certain amount of inclination towards the calendering
or delivery rollers. If a thread breaks or becomes too thin it allows the guide plate
to fall into a perpendicular position, on the other hand if the sliver should become too
thick, or if the trumpet guide should become chocked then the guide plate is drawn
still further forwards and in either case the doffer and feed rollers will be stopped by
the following means.
Upon the axis of the lower calender roller (or upon the front shaft where there
are no calender rollers) I mount an excentric which gives an up and down motion
to an upright rod or wire which carries a light balance beam at its upper end.
A wire is hung from either end of this beam; the back wire hangs down in
front of the guide plate to which is attached a finger or projection of such a form
that when the guide plate bangs in its normal position (that is, slightly inclined
only towards the calender rollers or front shaft) the hanging wire will pass freely
up and down without touching, but if from either of the causes above named the
guide plate falls into the perpendicular position, or is drawn too far forwards, the
projection or finger comes under the end of the hanging wire and stops the descent
thereof, thereby causing the light balance beam to oscillate.
The hanging wire at the other end of this beam is provided with a catch which
then presses down one end of a lever, the other end of which is connected to the
ordinary stopping motion in such a way that when the catch lever before mentioned
is caused to oscillate the ordinary stop lever puts the doffing cylinder and the feed
motion out of gear.
Dated this 20th day of November 1889.
GEORGE DAVIES,
4, St. Ann's Square, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improved Stop Motion for Carding Engines.
I JOB BOON late of 86, Hillkirk Street Beswick Manchester now residing at
25 Jessel Street Mill Hill Blackburn in the County of Lancaster, Mill Manager, do
hereby declare the nature of this invention and in what manner the same is to be
O performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to an improved stop-motion to be applied to carding engines
for the purpose of stopping the revolution of the doffing cylinder and the feed motion
whenever the sliver or end breaks or becomes too thin, or if the same should become
5 too thick or otherwise obstruct or 'choke the trumpet guide..

page_text: The nature of my said invention and the manner in which the same is to be per-
formed will be readily understood on reference to the drawing hereunto annexed and
the following explanation thereof.
The annexed diagram illustrates a pair of calendering rollers with my invention
shown (partly in section) as applied thereto..
a is part of the frame of a carding engine and 6 one of the slotted standards
carrying the upper and lower calendering rollers c and d.
""
Instead of mounting the trumpet guides (one of which is shown dotted at e) in a
fixed plate as usual I hang the plate from pivots or hinges at g so that the "pull
or friction of the sliver passing through the trumpet e shall give the plate f a certain
amount of inclination towards the calendering rollers c and d as shown or to the
. delivery rollers. If the sliver breaks or becomes too thin it allows the guide plate f
to fall into a perpendicular position.
On the other hand if the sliver should become too thick, or if the trumpet guide e
should become choked then the guide plate will be drawn still further forwards, and
in either case the doffer and feed rollers will be stopped by the following means.
Upon the axis d' of the lower calendering roller d or upon the front shaft where
there are no calender rollers) I mount an eccentric which gives a constant up and
down motion to the vertical rod i the lower end of which clips the eccentric. The
upper end of this rod i carries a light balance beam k and a rod is hung from either
end of this beam. The front rod n acts as a fulcrum.
The back rod hangs down in front of the guide-plate f near the lower end of
which latter is attached a finger or projection m having a slot through it and so placed
that when the guide plate hangs in its normal position (as shown) that is only
slightly inclined towards the calender rollers or front shaft, the hanging rod / will
pass up and down freely through the slot without touching the finger or projection m,
but if from either of the causes above named the guide plate f falls into the perpen-
dicular position, or is drawn too far forwards the solid part of the projection or
finger m comes under the end of the hanging rod and stops the descent thereof
thereby causing the back rod to act as a fulcrum and the front end of the beam k
,to oscillate.
.
The hanging rod n at this end of the beam is provided with a notch which catches.
on a lever o and this lever is so connected with the ordinary stopping motion that
when the beam oscillates so as to force down the front hanging rod n it causes the
lever o to oscillate, and release the ordinary stop lever and thus put the doffing cylinder
and feed motion out of gear; the rod n being at other times stationary and its upper
end forming the fulcrum upon which the beam k oscillates.
When the sliver is passing through the trumpet e at the proper thickness the lower
end of the plate presses against the upright arm of a light three-armed lever p which
is carried by a small fixing a screwed into the front of the card frame a. This.lever p
is weighted at r and its lower arm rests against the card frame. If the sliver becomes
too thick the increased pressure against the guide will cause the plate f to lift the
weight and bring the solid part of the projection m under the rod i and thus stop the
machine.
The weight r is made to slide so as to adjust the tension, and the thickness of the
sliver can be regulated by the small weight s..
When it is desired to allow the stop motion to be inactive for piecing-up or other-
wise the notch of the front hanging rod n is lifted off the lever o and it cannot be
left out of action as it comes into action again automatically as soon as the end is
pieced.up.
is :
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
2.
1
The combination of the swinging guide plate and its slotted projection m with
the hanging rods land in and oscillating beam k, actuated by an excentric '/ 'on the

page_text: 5
axle of the lower calendering roller (or upon the front shaft) and either with or without
the weighted three-armed lever p all constituting an improved stop motion for carding
engines constructed arranged and operating substantially as hereinbefore described and
illustrated by the drawing or diagram hereunto annexed.
Dated this 21st day of May 1890.