Improvements in Self-acting Mules and Twiners.
Year: 1897

page_text: Date of Application, 20th Oct.,
Complete Inonification Loft 15th Jul 1000
1897
Ancantad 20th Au
1000
Improvements in Self-acting Mules and Twiners.
We, ASA LEES AND COMPANY LIMITED, of Soho Iron Works, Oldham, in the
County of Lancaster, Machine Makers, and JOE WILLIAM BROOK, of Slant Gate,
Kirkburton, in the County of York, Mule Overlooker, do hereby declare the nature
of this invention to be as follows:-
Our invention relates to improvements in self acting mules and twiners and the
object of our invention is to construct a reliable check motion for the backing off
lever which will bring the backing off wheel and friction cone into gradual contact
and so avoid the sudden contact and consequent excessive strain hitherto put upon
the driving belt and other parts of the machine and prevent the gearing being
broken.
In carrying out our invention we prolong the backing off shaft some distance
beyond its bearing and by means of a worm and wheel or any other suitable gearing
we drive a short check motion shaft placed in bearings say at right angles to the
backing off shaft; on this check motion shaft we mount a change pinion which
gears into a toothed wheel and so turns another toothed wheel on a shaft or stud
on which is also mounted a ratchet wheel and on a ratchet lever pivoted to the
same shaft is a pawl which rests in the teeth and yet allows the ratchet wheel to
turn freely under the pawl. A rod is connected from the ratchet lever to a pro-
jection cast upon the usual lever which holds the backing off lever out of action
so that the moment the strap fork is moved on to the loose pulley the support by
which the backing off lever is held up is removed which would allow the front end
of the usual lever to fall were it not for the pawl which is in gear with the ratchet
wheel and consequently the usual lever can only fall at the same speed as the
ratchet wheel moves upon its shaft, the result being that the backing off wheel
comes gradually into contact with the friction cone and the change of motion of
the rim shaft takes place smoothly and quietly and without jarring or excessive
strain.
Dated this 10th dow of October 1807
H. B. BARLOW & GILLETT,
Agents for Applicants.
Improvements in Self-acting Mules and Twiners.
We, ASA LEES AND COMPANY LIMITED, of Soho Iron Works, Oldham, in the
County of Lancaster, Machine Makers, and JOE WILLIAM BROOK, of Slant Gate,
[Price 8d.1

page_text: Kirkburton, in the County of York, Mule Overlooker, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement:
Our invention relates to improvements in self acting mules and twiners and the
object of our invention is to construct a reliable check motion for the backing off
lever which will bring the backing off wheel and friction cone into gradual contact
and so avoid the sudden contact and consequent excessive strain hitherto put upon
the driving belt and other parts of the machine and prevent the gearing being
broken.
In carrying out our invention we prolong the backing off shaft some distance
beyond its bearing and by means of a worm and wheel or any other suitable gearing
we drive a short check motion shaft placed in bearings say at right angles to the
backing off shaft; on this check motion shaft we mount a change pinion which
gears into a toothed wheel and so turns another toothed wheel and shaft or stud
on which is also mounted a ratchet wheel, and on a ratchet lever pivoted to the
same shaft is a pawl which rests in the teeth and yet allows the ratchet wheel to
turn freely under the pawl. A rod is connected from the ratchet lever to a pro-
jection cast upon the usual lever which holds the backing off lever out of action
so that the moment the strap fork is moved on to the loose pulley the support by
which the backing off lever is held up is removed which would allow the front end
of the usual lever to fall were it not for the pawl which is in gear with the ratchet
wheel and consequently the usual lever can only fall at the same speed as the
ratchet wheel moves upon its shaft, the result being that the backing off wheel
comes gradually into contact with the friction cone and the change of motion of
the rim shaft takes place smoothly and quietly and without jarring or excessive
strain.
In the accompanying two sheets of drawings-
Fig. 1 is a back elevation and Fig. 2 a side elevation of part of a mule head-
stock to which our improvements are applied.
In the drawings,-2 denotes the rim shaft upon which are mounted the driving
pulleys 3, 4 and the loose pulley 5 and also the backing off wheel 7 and friction cone
forned with the pulley 4; the backing off wheel is driven by a pinion 8 secured.
on the backing off shaft 9 which is prolonged beyond its bearing and carries a
worm 10 which gears into and drives a worm wheel 11 secured upon a short
shaft 12 a pinion 13 is also mounted on the shaft 12 and this pinion gears into a
toothed wheel 14 mounted upon a stud 15 which as well as the shaft 12 is carried
by a bracket 16 secured to the headstock 17.
The wheel 14 also acts as a ratchet wheel for a spring pawl 18 carried by an
arm 19 pivoted on the stud 15, and the arm 19 is connected by a link 20 to a
lever 21 which is pivoted loosely on the backing off fork shaft 22 supported in
bearings on the headstock; and the lever 21 is secured adjustably by a bolt 24
to the upper arm of the backing off lever 23 which is slotted for its reception.
The backing off lever 23 is held up out of action by a lever 25 pivoted loosely
upon the strap fork shaft 26 (as described in the Specification to Letters Patent
No. 3363 of 1885 granted to John Clegg) but when the strap fork lever 27 begins
to move the belt on to the pulley 4 the end of the backing off lever 23 moves off
the lever 25 and is then supported on the strap fork lever 27. On the return move-
ment of the strap fork lever 27 the lever 25 being latched behind the backing off
lever 23 is unable to move back with the strap fork lever 27 and so a space is
formed between them. In the ordinary course the backing off lever 23 would then
be free to fall, but according to our improvements the downward movement of the
backing off lever 23 is controlled by the motion of the toothed wheel 14 and
pawl 18 which only allow the lever to fall at the speed at which the wheel 14 is
moving, and the result is that the backing off wheel 7 comes. gradually into contact
with the friction cone and the change of motion of the rim shaft 2 takes place
smoothly and quietly and without jarring or excessive strain.

page_text: Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what we
claim is:-
1. Controlling the movement of the backing off lever (at the time when in the
ordinary course the said lever would be free to fall uncontrolled) by means of suit-
able connections from a pawl gearing into a toothed wheel driven positively from
the backing off shaft so that when the backing off lever is released it can only
fall at the same speed as that of the toothed wheel whereby the backing off wheel
comes gradually instead of suddenly into gear with the friction cone.
2. The combination with the backing off lever 23, of the lever 21 connected
adjustably to the backing off lever 23 and also connected to a pawl in gear with
the toothed wheel 14 which is driven positively by any suitable gearing from the
backing off shaft all substantially as herein set forth.
3. The combination with the backing off lever 23, the lever 25 and the strap
fork lever 27, of the lever 21 connected adjustably to the backing off lever 23 and
also connected to a pawl in gear with the toothed wheel 14 which is driven posi-
tively by any suitable gearing from the backing off shaft all substantially as herein
set forth.
4. The general construction and arrangement of parts substantially as herein
shown and described for the purposes specified.
T
T... 1000
H. B. BARLOW & GILLETT,
Agents for Applicants, 17, St. Ann's Square, Manchester.