A Stop Motion for Pirn Winding Machines.
Year: 1892

page_text: Date of Application, 29th Jan., 1892
Complete Specification Left, 23th Apr., 1892-Accepted, 28th May, 1892
PROVISIONAL SPECIFICATION.
A Stop Motion for Pirn Winding Machines.
I SAMUEL JONES of Glenmount House Newtownards in the County of Down
Ireland Power Loom Factory Manager do hereby declare the nature of this
invention to be as follows:-
:-
This invention relates to a certain new stop motion for pirn winding machines,
5 it consists of small doups, suspended by the threads and kept in a vertical position
over a horizontal lever, under this horizontal lever, and on a vertical spindle, is a
small hub or cam, which acts on this horizontal lever when brought down by any
of the above mentioned doups, and stops the spindle.
Dated this 27th day of January 1892.
SAMUEL JONES,
Applicant.
COMPLETE SPECIFICATION. .
A Stop Motion for Pirn Winding Machines.
I, SAMUEL JONES, of Glenmount House, Newtownards, Co. Down, Ireland,
Factory Manager, 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 :-
This invention relates to an improved stop motion for pirn winding machines,
and consists of small doups or guides suspended or held by the threads in a vertical
position above a suitably weighted lever. Said lever is arranged horizontally
above a cam affixed to the rotating spindle in such a manner that in the event of
any thread or threads breaking, the corresponding doup or doups is or are released
and fall upon the front end of the horizontal lever overbalancing it until a pro-
jecting part of same is in the path of the beforementioned cam, which during its
rotation pushes said horizontal lever to release the trip gear and stop the
spindle.
In order that the foregoing may be clearly understood I have appended the
accompanying two sheets of drawings, in which the shaded portion represent my
invention as applied to pirn winding machines at present in use.
Fig. 1. is a side elevational view with the side wall removed and portions broken
away for a clearer view of the horizontal lever.
Fig. 2. is a front elevational view illustrating the doups or guides in the position
they are held by the threads or strands.
Fig. 3 is a part sectional plan shewing more clearly the respective positions of
the lever, cam, and brake.
Referring to Figures 1. and 2. A B C are the doups or guides arranged upon the
bar D supported at a convenient distance from the cross piece E by the arms F F.
Below the bar D is pivotted the horizontal lever G fulcrummed at H to the trip
lever I the weight J at the back end of the lever G serving as a counterpoise to
hold the step portion K above the path of the cam L as it rotates with the
spindle-M.
The bar N at the front end of the lever G is adapted to receive the weight of
the doups or guides as they fall.
The modus operandi is as follows. Supposing that the pirn P is to be wound
with three threads or strands as in the example illustrated in the drawings then
the three threads or strands are each separately passed through the eye of a single
ID 11

page_text: doup or guide, on its way to the pirn P. When threaded each strand serves to
hold the respective doups or guides A, B, C, in a vertical position or nearly so
against the cross piece E, the threads being, held apart and entanglement prevented
by the adjustable arms QQ
Should however any one of the three. threads break, the doup or guide corre-
sponding to such broken thread would fall upon the bar N and depress the horizontal
lever G until the part K of the lever is in the path of the cam. L as shewn by the
dotted lines in Figure 1.
As the cam revolves it pushes the lever G back by the step Kand with it the
trip lever I until the lip-R is free of the stud-S. The lever T then falls and by
means of the wheel U arranged a short distance from the fulcrum V. of the
lever Tlifts, the spindle Mand, consequently the friction disc W clear of the
driving disc X into contact with the brake, Y. The rotation, of the spindle Mand
pirn P being thereby immediately and effectually stopped.
From the foregoing it will be understood that one, two, three or more threads or
strands may be wound upon a piru with equal advantage, it being only necessary
in case of a greater or less number being required to add to or remove a corre-
sponding number of doups or guides.
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-
The combination of any number of doups or guides A, B, C, weighted lever G,
cam L, with the trip brake and other mechanism of a pirn winding machine of the
kind described and shewn as and for the purpose substantially as set forth.
Dated this 20th April 1892.
FREDK. WALKER,
11, Furnival Street, London, E.C., Agent for the Applicant.