Improvements connected with the Weighing Mechanism of Machines for Feeding Wool and other Fibres to Scribbling and Carding Machines.
Year: 1892

page_text: Date of Application, 16th Nov., 1892
Complete Specification Left, 16th Aug., 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements connected with the Weighing Mechanism of
Machines for Feeding Wool and other Fibres to Scribbling
and Carding Machines.
We, ALLEN PRIEST and WALTER PRIEST, of the Firm of Allen Priest and
Sons, of Victoria Mills, Huddersfield, Yorkshire, Yarn Spinners, do hereby
declare the nature of this invention to be as follows:-
This invention refers to the weighing mechanism of apparatus for feeding wool
and other fibres to scribbling and carding machinery.
Heretofore the weighing mechanism of automatic feeding machines has been
liable, through slight accidental or self endwise or lateral movement of the scale
pan or beams carrying same, or to the adherence of loose fibres accumulated on
the working parts, to stoppage or incomplete upward and downward movement,
thus depositing irregular quantities of fibre on the travelling apron of the
scribbling or carding machine and causing the production of faulty yarn. In some
cases, to more effectually guard against this irregular action, a larger quantity of
fibre has been deposited in the scale pan than was necessary or advantageous to
the yarn to be produced.
The object of our invention is to provide means for ensuring the perfect and
certain working of the scale pan and beams, which consist of a bracket secured to
the frame of the machine, preferably between the scale pan and fulcrum of the
weigh beam, said bracket carrying a spindle or spindles adapted to slide freely in
an opening in the bracket and provided with a spring or springs.
The spindle is engaged by the underside of the beam when the latter lowers by
the weight of the fibre in the pan overbalancing the counter weights, and is caused
to descend and compress the spring or springs, which, after the fibre has been
deposited onto the travelling apron of the carding machine and the scale pan
released, forces said pan upwards to the required extent in readiness for the next.
weigh of fibre. A suitable slotted guide or yoke is formed on the bracket (or on
the head of the spindle if preferred) for receiving the weigh beam which is free
to work up and down but cannot move laterally therein.
By the means described, the upward motion of the scale pan is made certain
and positive and all liability to lateral movement and locking of the parts is
avoided, thereby preventing the delivery of irregular quantities of fibre to the
carding machine by reason of incomplete action or inaction of the mechanism.
The mechanism provided with our improvements requires no attention from the
operative and can be cleaned any time without fear of its adjustment being
disturbed.
Dated this 15th day of November 1892.
TASKER & CROSSLEI,
Huddersfield, Agents.
COMPLETE SPECIFICATION.
Improvements connected with the Weighing Mechanism of
Machines for Feeding Wool and other Fibres to Scribbling
and Carding Machines.
We, ALLEN PRIEST and WALTER PRIEST, of the Firm of Allen Priest and
Sons, of Victoria Mills, Huddersfield, Yorkshire, Yarn Spinners, do hereby
declare the nature of, this invention and in what manner the same is to be
TDi Q77

page_text: performed, to be particularly described and ascertained in and by the following
statement :-
This invention refers to the weighing mechanism of apparatus for feeding wool
and other fibres to scribbling and carding machinery. Heretofore the weighing
mechanism of automatic feeding machines has been liable, through slight
accidental or self endwise or lateral movement of the scale pan or beams carrying
same, or to the adherence of loose fibres accumulated on the working parts, 10
stoppage or incomplete upward and downward movement thus depositing irregular
quantities of fibre on the travelling apron of the scribbling or carding machine and
causing the production of faulty yarn. In some cases, to more effectually guard
against this irregular action, a larger quantity of fibre has been deposited in the
scale pan than was necessary or advantageous to the yarn to be produced.
The object of our invention is to provide means for ensuring the perfect and
certain working of the scale pan and beams, which consist of a bracket secured to
the frame of the machine, preferably between the scale pan and fulcrum of the
weigh beam, said bracket carrying a spindle or spindles adapted to slide freely in
au opening in the bracket and provided with a spring or springs.
The spindle is engaged by the underside of the beam when the latter lowers by
the weight of the fibre in the pan over-balancing the counter weights, and is
caused to descend and compress the spring or springs, which, after the fibre has been
deposited onto the travelling apron of the carding machine and the scale pan
released, forces said pan upwards to the required extent in readiness for the next
weigh of fibre. A suitable slotted guide or yoke is formed on the bracket (or on
the head of the spindle if preferred) for receiving the weigh beam which is free to
work up and down but cannot move laterally therein.
In order that our invention may be more fully understood reference is herein
made to the accompanying sheet of drawings, wherein :-
Fig. 1 is side elevation of so much of the weigh mechanism of an automatic
feeding machine as is necessary to shew the application of our improvements
thereto.
Figs. 2 and 3 are enlarged side and end elevations respectively of the parts
comprising our invention, and Fig. 4 shews a modification.
Referring to the drawings, a represents the framing of the machine, 6 the weigh
beam which is pivotted on the stud c and carries the scale pan d and ccunter-
balance weight e, the said parts being arranged and operated in the ordinary well
known manner. is a bracket or casting which is bolted or otherwise secured to
or formed on the frame a, preferably between the fulcrum of the weigh beam and
scale pan, and has formed at its upper end a slot or recess g adapted to receive the
weigh beam which is free to work up and down therein, but is prevented from
moving sideways or laterally.
In the horizontal extension or arm f¹ of the bracket f, is formed an opening H
for receiving and supporting a spindle which is free to move vertically therein,
said spindle being surrounded by a spiral spring k confined between the head or
collar m on the spindle, and the part of the bracket.
At each downward movement of the weigh beam b, caused by the weight of
fibre delivered to the scale pan overbalancing the counter weights e, the said beam
engages with the head m or end of the spindle and, forcing it downwards,
compresses the spiral spring which therefore, as soon as the weigh mechanism is
released after depositing the fibre onto the travelling apron of the carding machine,
forces the parts up again to their normal positions in readiness for the next weigh
of fibre.
If required, more than one spindle and spring may be employed for forcing up
the weigh beam and scale pan. Instead of or in addition to the slot or recess g in
the bracket, we may form a recess or groove gin the head or collar m on the
spindle, to receive the weigh beam and prevent lateral movement thereof.
Our improvements are applied to both sides of the machine or only to one side
thereof, as required.

page_text: By the means described the upward motion of the scale pan is made certain and
positive, and all liability to lateral movement and locking of the parts is avoided,
thereby preventing the delivery of irregular quantities of fibre to the carding
machine by reason of incomplete action or inaction of the mechanism. The
mechanism provided with our improvements requires no attention from the
attendant and can be cleaned any time without fear of its adjustment being
disturbed.
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
claim is :-
Firstly. In automatic machines for feeding wool and other fibres to scribbling
and carding machines, the combination, with the weigh mechanism, of a spindle or
spindles, loosely supported in bearings and free to move vertically, a spiral spring
or springs connected with said spindle or spindles adapted to be acted upon by the
descent of the weigh beam and to re-act thereon on the mechanism being released
to ensure the ascent of the beam and scale pan to their normal positions ready for
the next weigh of fibre, and a groove or grooves or recesses for guiding the weigh
beam and preventing lateral movement of the parts, substantially as herein shewn
and described.
Secondly. In the weigh mechanism of machines for automatically feeding wool
and other fibres to carding and scribbling machines, a bracket or brackets f forked
or recessed at g to receive and guide the weigh beam and a spindle i supported
loosely in the bracket and surrounded by a spiral spring k confined between the
head or collar m on said spindle and the part of the bracket f, all arranged and
operating in the manner and for the purposes substantially as herein shewn and
described.
Dated this 15th der of August 1893
TASKER & CROSSLEY,
Huddersfield, Agents.