Improvements in Pirn Winding Frames.
Year: 1891

page_text: Date of Application, 31st Dec., 1891
Complete Specification Left, 11th Feb., 1892-Accepted, 12th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in Pirn Winding Frames.
I, EDWARD BARLOW, of 26 Fountain Street, Manchester in the County of
Lancaster, Smallware Manufacturer, do hereby declare the nature of this invention
to be as follows:-
My invention relates to improvements in pirn winding frames and my improve-
ments consist chiefly in a combined arrangement of weighted levers and eccentric
for automatically disengaging the pirn, when fully wound, from its driving gear
and so stopping it.
In my improved machine each pirn is preferably held between a pair of cups or
discs supported in the forked end of a weighted lever; on the pirn spindle or axis
is secured a toothed wheel which, while the pirn is being wound, gears with a
toothed wheel on the driving shaft of the machine and so drives the pirn.
Below the above named weighted lever is a second weighted lever which carries
at one end an eccentric, the axis of which is parallel with the axis of the pirn ;
this eccentric is free to be turned in its bearings and lies below the pirn and out of
contact with it until the pirn is fully wound. At the other end of the second
weighted lever is a projecting arm which comes under and holds up the back or
weighted end of the first named lever until the pirn is fully wound.
When the pirn is full the yarn or thread thereon comes in contact with and
so turns the eccentric, thereby forcing down the front end and raising the back
end of the second lever, the projecting arm on which slips off the projecting
weighted portion of the first lever, and so allows the back end of the latter to drop
sufficiently to raise the front end and remove the toothed wheel on the pirn axis
out of gear with the toothed wheel on the driving shaft whereby the filled pirn is
automatically stopped.
Dated this 30th day of December 1891.
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Pirn Winding Frames.
I, EDWARD BARLOW, of 26 Fountain Street, Manchester in the County of
Lancaster, Smallware Manufacturer, 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 :-
My invention relates to improvements in pirn winding frames and my improve-
ments consist chiefly in a combined arrangement of weighted levers and eccentric
for automatically disengaging the pirn, when fully wound, from its driving gear
and so stopping it.
In my improved machine each pirn is preferably held between a pair of cups or
discs supported in the forked end of a weighted lever; on the pirn spindle or axis
is secured a toothed wheel which, while the pirn is being wound, gears with a
toothed wheel on the driving shaft of the machine and so drives the pirn.
Below the above named weighted lever is a second weighted lever which carries
at one end an eccentric, the axis of which is parallel with the axis of the pirn;
this eccentric is free to be turned in its bearings and lies below the pirn and out
of contact with it until the pirn is fully wound. At the other end of the second
weighted lever is a projecting arm which comes under and holds up the back or
weighted end of the first named lever until the pirn is fully wound.

page_text: And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Figure 1 is an end sectional elevation and Fig. 2 a plan of part of a pirn winding
frame to which my improvements have been applied.
In these views, a designates one of the set of bobbins from which the yarn bis
drawn over the guide rod c to the set of pirns d upon which it is to be wound.
Each pirn dis supported between a pair of cups e el supported in the forked
end of a weighted leverf which is fulcrumed at g to a bracket secured to the
rail i.
One of each pair of the cups e e¹ is movable and is pressed against the end of
its pirn d by means of a plate spring j, and to the cup e of each pirn is secured a
pinion k which gears into a spur wheel fixed on the driving shaft m.
Below each pirn and on the bracket his fulcrumed at n a lever o, the front
end of which carries an eccentrically pivoted disc p and the back end is so weighted
as to keep the said disc raised and in the position shown in Fig. 1; when in this
position a projecting arm o¹ on the lever o comes under and supports a notched
projection on the back end of the weighted lever f
When the frame is started the parts of the machine occupy the positions as
shown in the drawings, the yarn or thread being wound freely upon the pirns d;
but as soon as a pirn full the yarn or thread thereon comes in contact with and
80 turns its eccentric disc p, thereby forcing down the front end and raising the
back end of the lever o, the projecting arm o¹ on which slips off the projection 1
on the weighted end of the lever f, and so allows the back end of the latter to drop
sufficiently to raise the front end and remove the pinion on the cup e¹ out of gear
with the toothed wheel on the driving shaft m, whereby the filled pirn is auto-
matically stopped; the filled pirn is now removed and the parts adjust themselves
automatically to start winding yarn on a new pirn.
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 :-
:-
for
1. The combined arrangement of the weighted levers fo, and eccentric P
automatically disengaging the toothed wheels k, l, and stopping the pirn when
fully wound substantially as herein set forth.
2. The combination with a pirn supported in a forked weighted lever, of an
eccentric carried by a weighted lever which supports the forked lever during the
winding of the pirn, and automatically disengages the pirn from its driving gear,
when fully wound substantially as herein set forth.
Dated this 10th day of February 1892.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.