Improvements in the Shaper Mechanism of Thread Winding . Machines.
Year: 1895

page_text: Date of Application, 28th Feb., 1895
Complete Specification Left, 28th Nov., 1895-Accepted, 28th Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Shaper Mechanism of Thread Winding .
Machines.
We EDMUND NORBUBY BAINES of 30 Park Avenue, Longsight Manchester,
Engineer, and WILLIAM AYRTON of Gorebrook Ironworks, Longsight, Manchester,
Engineer, do hereby declare the nature of this invention to be as follows:-
Our said invention relates to improvements in the shapers of thread winding
machines described in the Specification of Conant's Patent No. 2452 of A.D. 1864.
It is to be understood however that our said invention is not limited in its
application to the particular type of thread winding machine described in the
aforesaid Patent Specification No. 2452 of A.D. 1864 bnt is applicable to thread
winding machines generally.
According to our said invention one of the two hinged brackets which carry the
nuts acting on the shaper screw carries a finger or projection which engages
alternately over and under another similar finger or projection on a bolt or slide
bar carried by a bearing attached to the other hinged bracket. The said bolt has
its traverse limited by two stops whose distance apart may be varied in several
ways as for instance by means of a block with inclined sides. By varying the
position of the said block with regard to the bolt the traverse of the latter may
take place within variable limits. The inclination of the sides with regard to each
other may be varied to suit the angles of the bobbin head. On the bolt spiral
springs are provided to cause it to shoot back as it leaves the stop at either side.
The engagement of the fingers with each other locks each bracket and its nut
until released by the slide bar meeting the stop at the end of its traverse when one
bracket is released and the other is locked. This reversal takes place at the end of
each stroke of the bult.
The variable stops may also be provided by adjustable cams mounted on a
suitable shaft capable of angular rotation the amount of which will depend on the
angle of the bobbin. We also may obtain the same effect by means of plates
provided with nuts mounted on right and left hand screws the rotation of which
causes the stops to approach or to recede.
According to a modification of our said invention the head of the bobbin itself i<
used for reversing the position of the brackets.
In this case the fingers are pivoted in carriers on each of the brackets and a
thread guide is connected therewith in such a manner that as it reaches each end of
the bobbin during the process of winding it reverses the engagement of the fingers
and the position of the two brackets by contact of the guide with the bobbin head
itself which thus becomes its own shaper.
In this modification. we provide fixed stops for the purpose of producing the
reversal of the locking when the bobbin becomes so full that the guides are lifted
out of effective contact with the bobbin heads.
Dated this 27th day of February 1895.

page_text: COMPLETE SPECIFICATION.
Improvements in the Shaper Mechanism of Thread Winding
Machines.
We EDMUND NORBURY BAINES of 30 Park Avenue, Longsight, Manchester,
Engineer, and WILLIAM AYRTON of Gorebrook Ironworks, Longsight, Manchester,
Engineer, 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 :-
Our said invention relates to improvements in the shapers of thread winding
machines described in the Specification of Conant's Patent No. 2452 of A,D. 1864.
It is to be understood however that our said invention is not limited in its applica-
tion to the particular type of thread winding machine described in the aforesaid
Patent Specification No. 2452 of A.D. 1864 but is applicable to thread winding
machines generally in which the thread is guided along the bobbin by a guide
caused to traverse backwards and forwards by ants. engaging alternately with a
screw baring a right and left hand thread. For description of the mechanism for
operating the right and left hand traverse screw and transmitting the backward
and forward reciprocating motion obtained therefrom to the thread guide we refer
to the hereinbefore cited Specification of Conant's Patent as our said invention
does not comprise such mechanism.
For more clearly setting forth our said invention we will describe the same with
reference to the accompanying drawings in which
Fig. 1 is a plan
Fig. 2 a side elevation
Figs. 3 and 4 plans showing the travelling mechanism in contact with the right
and left hand stops respectively.
According to our said invention one (a¹) of the two hinged brackets a a' swinging
freely on the shaft 9 (which carry the nuts n (Fig. 2) acting on the shaper screw o)
is provided with a finger or projection 6' which engages alternately over and under
another similar finger or projection 6 on a bolt or slide bar c carried by a bearing
attached to or formed integral with the other hinged bracket a.
The bolt o has its traverse limited by two stops dd' whose distance apart may be
varied in several ways as for example by means of blocks having inclined sides as
shown in Fig. 1. The distance of the blocks d d' apart may be varied by the right
and left hand screw engaging in nuts in the blocks d d'. On the distance apart
of the stops dd depends the travel of the bolt c. The inclination of the sides of
the blocks d d to suit the internal angles of the heads of the bobbin is varied by
means of worms ff' engaging in curved racks formed in the back ends of the
stops d d².
Such means for varying the traverse of the bolt care however well known to
those conversant with thread winding machines and we do not claim either the
adjustability of the stops dd or the means shown for effecting the adjustments
thereof..
In Fig. 1 the finger b¹ is over the finger b and as a consequence the upper part
of the swinging arm a' brings the corresponding nut to engage with the traverse
screw o the rotation of which causes the brackets a a¹ and the bolt c to travel to
the right. On meeting the stop di (Fig. 3) the bolt is stopped and with it the
finger while the arm a' and with it the finger 6 still travels to the right. As
a consequence the finger b¹ slips sideways off the finger b whereupon the arm a¹
falls releasing its mit and the corresponding nut of the arm a comes into gear
with the traverse screw o by the action of the spring h (Fig. 2) as in the
present construction of Conant's thread winding machine. On the arms a a¹

page_text: moving to the left a spiral spring bearing against a collar of the bolt c causes
it to slide to the right when the finger 6 slides up the inclined edge of and on to
the finger thus locking the same and keeping its corresponding nut out of
engagement with the traverse sorew o until the bolt reaches the left hand stop d
when the action is reversed as shown in Fig. 4. The spring; and collar & have the
same function as the corresponding parts last described.
The thread guide is connected to the sliding parts in the usual manner.
In our Provisional Specification we referred to a modification in which the
internal inclined faces of the heads of the bobbin itself are used as stops for
reversing the position of the brackets but we abandon this part of our said
invention as not being so good as the construction hereinbefore described.
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―
In the shaper mechanism of a thread winding machine the combination with
the oscillating arms which carry the traverse nuts of the sliding bolt o and the
alternately overlapping locking fingers 6 b¹ substantially as and for the purpose set
forth and shown.
PORT TOOMPLOT TO Can C
E. T. WHITELOW, A.M. Inst. C.E.,
70 Deansgate, Manchester, Agent for the Applicants.