Improvements in Frames for Roving or Winding Cotton or other Fibres.
Year: 1894

page_text: Date of Application, 25th July, 1894
Complete Specification Left, 24th Apr., 1895-Accepted, 24th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Frames for Roving or Winding Cotton or
other Fibres.
We, JOHN HAYDOCK Junr., of 315 Burnden Terrace, Manchester Road, Bolton,
Lancashire, and JOSEPH HAYDOCK, of River Bank, Arthur Street, Bridgeton,
Glasgow, Mill Manager, do hereby declare the nature of this invention to be as
follows:-
This invention relates to frames for roving or winding cotton or other fibres and
it has for its object to prevent the attendant winding back, except at the proper
times, the rack for shifting the band on the cone pulleys of the machine.
With a roving or like frame having a large number of bobbins should two
or three of them run slack it is, at present, a common practice for the attendant to
at once wind back the rack and thereby cause the remainder of the bobbins to
be wound short. As a consequence the roving on the different bobbins is apt to be
unequal in length.
In carrying out our invention we fit on the rack a, preferably, smaller subsidiary
rack and we fit or arrange in conjunction with it a bracket which carries a pawl.
The pawl which engages with the rack is, or may be, mounted on a pin or stud which
is adjustable in a slot in the bracket. The pawl has on it a lug or projection
against which a spring bears in such manner, that, when the pawl is moved out of
engagement with the rack, it is, by means of the spring, retained in that position.
The pawl has a downwardly projecting rod or arm which is so arranged as to
be struck or moved by a snug or snugs on the travelling rack.
The whole arrangement is such that when the rack has reached the full limit of
its movement and the bobbins are all fully wound the snug strikes the
downwardly projecting arm of the pawl and forces said pawl, against the action of
the spring out of engagement with the subsidiary rack thereby permitting the
attendant to wind back the mechanism. So long as the pawl remains in engagement
with the subsidiary rack the attendant cannot wind back the mechanism.
the main rack is wound back a snug strikes the arm of the pawl and throws the
latter back again into engagement with the subsidiary rack.
Dated this 24th day of July 1894.
When
H. D. FITZPATRICK;
70, Wellington Street, Glasgow.
-
COMPLETE SPECIFICATION:
. Improvements in Frames for Roving or Winding Cotton or
other Fibres.
We, JOHN HAYDOCK Junior of 315 Burnden Terrace, Manchester Road, Bolton,
Lancashire, and JOSEPH HAYDOCK of River Bank, Arthur Street, Bridgeton,
Glasgow, Mill Manager, do hereby declare the nature of this invention and in
Price 8d.1

page_text: what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention relates to frames for roving or winding cotton or other fibres and
it has for its object to provent the attendant winding back, except at the proper
times, the rack for shifting the band on the cone pulleys of the machine.
With a roving or like frame having a large number of bobbins should two
or three of them run slack it is, at present, a common practice for the attendant to
at once wind back the rack and thereby cause the remainder of the bobbins to be
wound too tight. As a consequence the roving on the different bobbins is apt to be
unequal in size causing irregularity in counts.
And in order that our said invention may be properly understood we have
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is an elevation of the device.
Fig. 2 is a side view and Fig. 3 a plan view, to an enlarged scale of the spring
pawl c.
Fig. 4 is a side view and Fig. 5 a plan view of a modified construction of the
spring pawl.
Figs. 6 and 7 are plan views of the snugs m, m¹.
Referring to the drawings:
A is the frame, B, B¹ the cone pulleys, D the rack for shifting the band E on the
cone pulleys and C the hand wheel for winding back the rack.
C.
In carrying out our invention we secure to or make one with the rack D
a subsidiary rack a and we arrange in conjunction with it a bracket 6 (secured to
the frame A) which carries a pawl c The pawl, which engages with the teeth of
the rack, is mounted on a pin or stud f which is adjustably secured in a slot g in the
bracket. The collar c' of the pawl, through which the pin f passes, has a V shaped
nick cut in it which, when the pawl is in the horizontal position as shown in full
lines at Figs. 2 and 3, locks on a V shaped projection; formed on the boss b¹ of the
bracket b. The spiral spring k presses the collar cup against the boss b¹. The
pawl is also provided with a downwardly projecting arm which is so arranged as to
be struck by snugs m, m', bolted by bolts e, el to the travelling rack.
o, o' are rollers which support the rack and on which it travels.
The pawl c normally hangs down, as indicated in dotted lines at Fig. 2, in
engagement with the teeth of the rack a.
The whole arrangement is such that when the rack, which moves in the direction
of the arrow, has reached the full limit of its movement and the bobbins are all
fully wound the snug m² strikes the downwardly projecting arm 1 of the pawl and
forces said pawl upwards into the horizontal position so as to be out of engagement
with the teeth of the rack a thereby permitting the attendant to wind back the
mechanism. The pawl is held in this position by the action of the spring k in
conjunction with the projection j and recess i. When the main rack is wound back
by means of the hand wheel C and toothed wheel F the snug m strikes the arm of
the pawl and causes its collar c¹ to override the projection thereby throwing the
pawl again into engagement with the subsidiary rack.
So long as the pawl c remains in engagement with the subsidiary rack a the
attendant cannot wind back the main rack D.
The snugs m, m', can be secured at the proper positions, in order to regulate the
times for throwing the pawl into and out of engagement with the rack, by
passing the bolts e, e¹, through any of the bolt holes n.
If desired instead of using the spring lock arrangement for the pawl c shown
in Figs. and 3, the arrangement shown in Figs. 4 and 5 can be used. This
arrangement consists of a bent spring k¹ the lower curved end of which, when the
pawl hangs down in engagement with the rack a, bears on the upper side of
a projection or catch on the pawl. When the pawl is lifted up the spring
overrides the projection and catches it thereby holding the pawl in the horizontal

page_text: position as shown in dotted lines at Fig. 4. The spring is not strong enough
to prevent the pawl being again thrown into engagement with the rack.
The catch arrangement is cased in to prevent the attendant tampering with it.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
consider novel and desire to claim is :-
In frames for roving or winding cotton or other fibres the combination with the
usual rack for shifting the band on the cone pulleys of the machine, of subsidiary
rack and pawl mechanism constructed and arranged so as to prevent the attendant
winding back the main rack except at the proper times, substantially as hereinbefore
described with reference to the drawings annexed.
Dated this 92rd dow of Anmil 1005
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.