Improvements in or connected with Stop Motions for Thread Spooling Machines.
Year: 1892

page_text: Date of Application, 29th July, 1892
Complete Specification Left, 22nd Apr., 1893-Accepted, 1st July, 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Stop Motions for Thread
Spooling Machines.
We, WALTER MCGEE and DAVID MCGEE, both of the firm of Walter
McGee
Son, Engineers, Paisley, Renfrewshire, do hereby declare the nature of
this invention to be as follows:-
This invention which relates to machines for spooling thread has for its object
the provision of an improved motion whereby when a predetermined length or
number of yards of thread has been wound on the spool or bobbin the action of the
machine is automatically stopped and the apparatus constituting the invention
consists of a wyper or knocking rod or pin which is adjustably keyed on one end of
the shaft carrying the "shaping" wheel of the machine. This wyper at any part
of or at the termination of one two or more revolutions of the "shaping" wheel
acts against one arm of a bell crank lever centred on the machine framing and
having its other end jawed to receive one extremity of a tumbler which is centred
on a pin or stud in the jaw. In conjunction with the tumbler there is provided a
finger which is centred on a bracket carried on and projecting from the thread
guide shaft and moving in unison with the thread guide. There is also provided in
conjunction with the tumbler a balanced lever which is centred on the framing of
the machine the tumbler acting on one end of the lever whose other end is furnished
with a heel or projection and when through the operation of the wyper on the
shaping wheel shaft and the bell crank lever the tumbler is caused to depress the
end of the balanced lever the heel or projection acts against a jaw centred on
the machine framing and carrying a roller which when the machine is winding is
entered into a notch or recess in a sliding bar and serves to keep the friction
driving wheels in gear. When the desired length of thread has been wound the
jaw is acted upon by the heel or projection and the roller is released from the
sliding bar which is then pulled by a spring so throwing the friction wheels out of
gear and stopping the machine.
The ordinary weighted wheel which brings back the shaping wheels to their
initial position is carried loosely on the shaping wheel shaft it being caused to turn
and wind up the cord of the weight by a heel or projection made on a collar or
0wyper secured on the said shaft and which comes in contact with a like projection
on the weighted wheel.
---anth day of July 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Stop Motions for Thread
Spooling Machines.
We, WALTER MCGEE and DAVID MCGEE both of the firm of Walter
McGee & Son, Engineers, Paisley, Renfrewshire, 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 which relates to machines for spooling thread has for its object
the provision of an improved motion whereby when a predetermined length or
number of yards of thread has been wound on the spool or bobbin the action of the
machine is automatically stopped.

page_text: The apparatus constituting this invention is illustrated in end elevation by
Figure 1. in plan by Figure 2 and in side elevation by Figure 3 of the accom-
panying drawings and it consists of a wyper or knocking rod or pin A which is
adjustably keyed on one end of the shaft B carrying the shaping" wheels C of
the machine. This wyper A at any part of or at the termination of revolution of
the shaping" wheels C acts against one arm of a bell crank lever D centred at E
on the machine framing F. The other arm or end of the lever D is jawed to
receive one extremity of a tumbler G, illustrated in detailed side elevation by
Figure 4, and which is centred on a pin or stud x in the jaw. In conjunction with
the tumbler G there is provided a finger or hook H which is centred on a bracket I
carried on and projecting from the thread guide shaft J, and moving in unison
with the thread guide, which is of ordinary construction and is not shewn by the
drawings. This finger acts on the tumbler G when the said tumbler is brought
into its path by the operation of the wyper A on the bell crank lever D. There
is also provided in conjunction with the tumbler G a balanced lever K which is
centred on the framing F of the machine. A hooked heel on the tumbler acts on
one end of the lever K whose other end is furnished with a heel or projection w and
when, through the operation of the wyper A on the shaping wheel shaft and of
the bell crank lever D the heel of the tumbler G is caused to depress the end of
the balanced lever K the heel or projection w acts against a jawed lever L centred
at on the machine framing and carrying a roller u which when the machine is
winding bears against a shoulder t on the upper edge of a sliding bar M and
serves to keep the ordinary friction driving gears N, N1 in gear. When the
desired length of thread has been wound the jawed lever L is acted upon by the
heel or projection w and the roller u is kicked up or released from the sliding
bar M which is then pulled by a spring O so drawing the friction wheel N which
has a box clutch on its boss out of gear with the friction wheel N' keyed on the
driving shaft P and stopping the machine.
The weighted wheel Q which brings back the shaping wheels C to their initial
position may be keyed upon the shaping wheel shaft B, in which case the wyper A
acts on the arm of the bell crank lever D once in each revolution or part of a
revolution or as shewu in detailed side elevation by Figure 5 the weighted wheel
may be carried loosely on the shaft B in which case it is caused to turn and wind
up the band or cords of the weight by a heel or projection q made on a collar or
wyper p secured on the said shaft B and which comes in contact with a like pro-
jection o on the weighted wheel Q once in each revolution. The projection or
heel remains in contact with the projection o till the termination of the next
revolution so winding up the band s of the weight rand bringing the wyper A into
operation as before described.
2+
In cases where two, four or other even number of machines are mounted on the
same framing in order that the winding of the thread may in each case terminate
at the same end of the spool and also in order that the winding may in each case be
with the twist of the thread the bell crank lever D of each alternate machine is
constructed as shewn in side elevation by Figure 6 and in end elevation by Figure 7
of the drawings and the tumbler is made in two parts G, G separately centred at n
and m on the bell crank lever. The part G which is acted upon by the finger or
hook H has an arm which bears under a heel k made on the part G¹ and tilts the
said part to depress the balance lever K as before described when the arm l' of the
part G is acted on by the hook H.
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 :-
1. In a thread spooling machine the improved stop motion consisting of a
wyper A keyed on the shaping wheel shaft B in combination with a bell crank
lever D, tumbler G centred on said lever, finger or hook H carried in bracket I
secured on thread guide shaft J and acting on said tumbler and balanced lever K

page_text: having a heel acting on a stop lever L substantially as described with reference to
the drawings annexed.
2. In conjunction with the improved stop motion herein before described for
thread spooling machines the combination of loose weighted wheel Q and fixed
collar or wyper p set forth with reference to Figure 5 of the appended
drawings.
Dated this 21st day of April 1893
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.