IMPROVEMENTS APPLICABLE TO THE PICKING MOTION OF LOOMS FOR WEAVING to be as follows:
Year: 1885

page_text: I KAY YATES of Worsley Road Little Hulton near Manchester in the County
of Lancaster Overlooker do hereby declare the nature of my invention for
"IMPROVEMENTS APPLICABLE TO THE PICKING MOTION OF LOOMS FOR WEAVING
to be as follows:-
"
This invention, relates to that class of looms known as the "under-pick" loom
where the picking stick is pivotted below the shuttle race and actuates the
picker direct.
:
"
This picking stick is caused to oscillate by a strap attached to an arm upon an
oscillating shaft, and the object of my invention is to simplify the mechanism
which actuates this picking shaft.
The ordinary apparatus for this purpose consists of a grooved face plate or arm
known as the "scroll" fast on the crank shaft. In the groove of this scroll works
a curved piece called the "half-moon" to which is attached the sliding "tumbler"
or tappet which by coming into contact with an arm on the picking shaft once in
every two revolutions of the crank shaft causes the picking stick to actuate the
shuttle at the required interval.
"
By my invention I dispense with the "scroll" the "half-moon and the sliding
tumbler, and I fix the tumbler on the fly wheel. I so mount the picking shaft
that it can slide in the direction of its length in its bearing as well as oscillate,
and beneath the upper arm of this shaft I mount a light lever working on a pin
fixed in a convenient position to the loom side.
"3
Upon the weft motion shaft I mount a tappet similar to that which actuates the
hammer of the said weft motion and so fixed that it lifts the light lever and conse
quently the arm of the picking shaft, out of the "sweep" or reach of the "tumbler
on the fly wheel at every second revolution of the crank shaft and thus the picking
stick is worked at every second revolution of the said shaft.
It will be evident that a similar arrangement is placed at the other side of the
loom to actuate the second picking stick.

page_text: Improvements Applicable to the Picking Motion of Looms
for Weaving.
I KAY YATES of Worsley Road Little Hulton in the County of Lancaster Loom
Overlooker do hereby declare the nature of my invention for IMPROVEMENTS
APPLICABLE TO THE PICKING MOTION OF LOOMS FOR WEAVING 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 that class of looms known as the "underpick " loom
wherein the picking stick is pivotted below the shuttle-race and actuates the
picker direct.
This picking stick is caused to oscillate by a strap attached to an arm upon an
oscillating shaft and the object of my invention is to simplify the mechanism which
actuates the picking shaft.
The ordinary apparatus employed for this purpose consists of a grooved face
plate or cam known as the "scroll" fast upon the crank-shaft. In the groove of
this "scroll" works a curved piece called the "half-moon" to which is attached
the "sliding-tumbler" or tappet which coming into contact with an arm on the
picking shaft once in every two revolutions of the crank-shaft causes the picking
stick to actuate the shuttle at the required interval.
My improvements in this picking notion will be readily understood on referenco
to the annexed drawings and the following explanation thereof.
Fig. 1. represents a side view of the end frame of a loom with my improved
picking motion shown as applied thereto and Fig. 2 is a front elevation of the
same.
a, a is the loom frame, and b, b the crank shaft, c, c is the picking shaft.
" and
According to my invention I dispense with the "scroll," the "half-moon
the "sliding tumbler" and I fix the tumbler or tappet d, d on the fly wheel e, c.
I sometimes so mount the picking shaft c, c, that it can slide in its bearings f, f
in the direction of its length as well as oscillate, but prefer to make only the
upper arm g, g of the shaft to slide on the picking shaft c, c as shown on the
drawing.
And beneath this upper arm I mount a light lever h, h working on a pin i, i
fixed in a convenient position to the loom side.
Upon the weft motion shaft l, I mount a tappet m, m siinilar to that which
actuates the hammer of the said weft motion and so fixed that it lifts the..light
lever h, and consequently the arm g, g of the picking shaft c, c out of the sweep
or reach of the tumbler &, d on the flywheel e, e at every second revolution of the
crank shaft b, b, and thus the picking stick (which is connected to the lower arm n, n
of the picking shaft in the usual manner) is worked at every second revolution of
the said shaft. By the use of the lever h, h between the cam and the arm there is
no obstruction to the reversing of the loom.
It will be evident that a similar arrangement is placed at the other side of the
loom to actuate the second picking stick.

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is, in the picking motion of looms for weaving
First. The combination of a tumbler fixed on the fly wheel acting against an arm
on the picking shaft, such arm being alternately moved into and out of the sweep
or range of such tumbler by means of a lever actuated by a tappet on the weft
motion shaft substantially as herein before described and illustrated by the drawings
annexed and
Secondly. I claim the upper arm of the picking shaft caused to slide either on or
with the said shaft in a direction parallel with the axis of the latter substantially
as hereinbefore described and illustrated by the drawings' annexed.
CHARLES DAVIES,
Agent for the Applicant.