Improvements relating to the Building Motion of Machinery for Preparing, Spinning, and Twisting Flax, Hemp, and other Fibres.
Year: 1895

page_text: Date of Application, 20th May, 1895
Complete Specification Left, 20th Feb., 1896-Accepted, 2nd May, 1896
PROVISIONAL SPECIFICATION.
Improvements relating to the Building Motion of Machinery for
Preparing, Spinning, and Twisting Flax, Hemp, and other
Fibres.
ROBERT LAUGHLIN of 322 Shankhill Road, Belfast, Ireland Mechanical
Foreman and JAMES ALEXANDER LAUGHLIN of 142 Falls Road, Belfast, Ireland,
Mechanical Foreman, do hereby declare the nature of this invention to be as
follows:-
The duty of the builder motion in machinery for the preparation, spinning &
twisting flax hemp jute and other fibres is to so regulate the delivery of the material
operated upon, to the receiver that no two coils will in the course of one traverse
in either direction be laid on top of each other. Such motion must reverse having
to build alternately from bottom to top and top to bottom.
The appliances at present in use for this purpose, are so constructed that
considerable time is lost in getting the actuating pinion into the fresh position
necessary to give motion in the opposite direction, during which time the builder is
at rest and the machine continuing to pay out, many coils are rolled on top of each
other resulting in great waste in the after processes.
In our invention reversion is accomplished instantaneously and the builder,
therefore, continuing in motion the material is paid onto the receiver in single
coils.
The details of our invention are as follows:-
11
A runner studded in the arm of a toothed wheel, travels round a parabolic bed.
On the opposite end of the stud, is fixed a cranked lever, oscillating motion to which
is given by the parabolic bed, and which in turn actuates the builder. The parabolic
bed being quite sharp at both ends of its greater diameter the runner is not allowed
to rest, but is made to engage immediately with the opposite side to that which it
has just traversed, hence the motion of the builder is continuous. The parabolic
bed may be so arranged, as to build barrel, straight, conical or other shape required,
and may be so constructed or attached, as that the runner & wheel may travel round
it, or it may be made a fixture to and travel with the wheel, giving motion to the
lever.
17th Mo 1805
ROBERT LAUGHLIN.
JAMES ALEXANDER LAUGHLIN.
Improvements relating to the Building Motion of Machinery for
Preparing, Spinning, and Twisting Flax, Hemp, and other
Fibres.
We ROBERT LAUGHLIN 322 Shankhill Road, Belfast, and JAMES ALEXANDER
LAUGHLIN, formerly of 142 Falls Road, Belfast, now of 322 Shankhill Road,
Belfast, Mechanical Foremen, 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 :—
The duty of the builder motion in machinery for the preparation, spinning, and

page_text: twisting of flax, hemp, jute, and other fibres is to so regulate the delivery, to the
receiver, of the material operated upon, that no two coils will in the course of one
traverse in either direction be laid on top of each other. Such motion must reverse,
having to build alternately from bottom to top and top to bottom.
The appliances at present in use for this purpose are so constructed that
considerable time is lost in getting the actuating pinion into the new position
necessary to give motion in the opposite direction during which time the builder is
at rest, and, as the machine continues to pay out, many coils are rolled on top of
each other, resulting in great waste in the after processes.
In our invention the reversal is instantaneously accomplished and as therefore
the builder continues in motion the material is paid into the receiver in single
coils.
And in order that our said invention may be properly understood we have here-
unto appended an explanatory drawing. Referring to Fig. 1.
This nut is free to
Fitted to the frame a is a parabolic cam or bed & in the groove b₁ of which runs a
roller fitted at the back of a stud c carried in a sliding nut d.
slide back and forwards in the slot e of the spoke e' of the toothed wheel which is
actuated by the pinion g on a countershaft. Fitted to the front of the stud c is au
arm h pivotted at its lower end in the slotted end of the oscillating bell crank lever i
for operating the builder.
As the wheel f revolves the roller on the stud c is caused to traverse the cam b
and thereby oscillate the arm and lever i.
As will be seen the ends of the parabolic cam, at its greater diameter, are quite
sharp so that the roller is not allowed to rest after having traversed one side of the
groove but is immediately caused to traverse the other side. In this manner the
motion of the builder is made continuous.
By making the top and bottom parts of the inner wall of the groove b¹, as shown
at Fig. 2, that is, with movable pieces A, B, supported by springs ¹ the continuous
action of the builder is facilitated. The springs always keep the pieces projecting
as shown, i.e., about inch beyond the inner wall of the groove, and when the roller,
in its travel, reaches, say the top strip, it first travels up it and then overrides it and
in so doing forces it down against the action of the spring . Immediately the
roller clears the strip the spring forces it up again to its original position. The
same action occurs when the roller reaches the bottom of the cam. As will be seen
this arrangement prevents the roller resting at either end of the cam and thus
obviates "dead points."
By substituting different shaped cams x the bobbins can be wound, in the usual
way, of either a barrel, cylindrical, or conical shape.
The arrangement of the wheel and cam can be obviously altered or modified
without departing from the invention.
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
consider novel and desire to claim is :-
1. In a building motion for machinery for preparing, spinning and twisting
flax, hemp and other fibres, the combination of a parabolic cam or bed (b) and
wheel (f) substantially as herein before described with reference to the drawing
annexed.
"
2. The general arrangement and combination of parts of the "building"
mechanism substantially as hereinbefore described and shown on the drawing
annexed.
Dated this 17th day of February 1896.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.