A NEW OR IMPROVED APPARATUS FOR CHECKING THE SHUTTLE IN LOOMS FOR WEAVING
Year: 1885

page_text: I, EDWARD HOLLINGWORTH of Dobcross, Yorkshire, Mechanical Engineer, do
hereby declare the nature of my invention for "A NEW OR IMPROVED APPARATUS
FOR CHECKING THE SHUTTLE IN LOOMS FOR WEAVING," to be as follows:-
:―
My Invention has reference to certain means to be employed for checking the
shuttle after it enters the shuttle box, and before it gets "home," so as to prevent
concussion which now takes place by the sudden stoppage of the shuttle.
In applying my improvements to under-pick looms I attach to the rocking shaft
which carries the "picking shoe" an adjustable arm or finger, so shaped and
arranged that at every revolution of the arm carrying the picking-bowl another bowl
on the said arm comes into contact with the adjustable arm on the rocking shaft
causing it to oscillate in such manner that the picker advances in the box and
meets the shuttle, whereby its force is arrested before it gets "home" consequently
the evils arrising from sudden stoppage are avoided.
The adjustable arm is preferably made to have some spring in it, so as to prevent
stiffness of the parts, and the said arm if desirable may be attached to the "picking
shoe" instead of on the rocking shaft.
When applying my invention to over-pick looms where the oscillatory picking
shaft is in a vertical position I fix the adjustable arm mentioned above on the said
vertical shaft and I cause it to rock at the proper time (so that the picker advances
to meet the shuttle) by means of the ordinary picking tappit, or by a bowl placed
thereon.

page_text: I, EDWARD HOLLINGWORTH, of Dobcross, Yorkshire, Mechanical Engineer do
hereby declare the nature of my invention for "A NEW OR IMPROVED APPARATUS
FOR CHECKING THE SHUTTLE IN 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:-
"
My invention has reference to certain simple and effective means to be employed
for checking the shuttle after it enters the shuttle box, and before it gets "home"
so as to prevent concussion which now takes place by the sudden stoppage of the
shuttle.
Such being the nature and object of my invention I will now proceed to describe
the same more fully and for this purpose I annex the accompanying sheet of
drawings wherein Fig 1 is elevation, and Fig 2 plan view of so much of the back
part of an under-pick loom as is necessary to illustrate my improvements. A is
loom frame, B the lathe sword, C picking stick working on a fulcrum at D, and
carrying the picking arm E. The picking shaft F is placed horizontally under
the loom, each end of which is supported loosely in bearings G, and on this shaft
is an upright arm H, the upper end of which is attached to the picking arm; the
said shaft also carries a short arm or shoe I for purposes hereinafter explained.
J is the tappit shaft carrying a sliding tappit K at each end, such tappits consisting
of an arm L carrying the picking bowl M, which at every revolution comes into
contact with the shoe I which is depressed thereby, causing the horizontal shaft F
to rock in its bearings, in doing which the picking arm E is made to descend,
consequently the picking stick is caused to slide the picker on its spindle and to
send the shuttle out of the box; so far the mechanisin is old and forms no part
of my invention.
As is well known by those conversant with looms that the shuttle is sent across
the loom into the opposite shuttle box with such force that the concussion caused
by the sudden stoppage is very detrimental to the loom. To prevent this is the
object of my invention which I accomplish by placing onto the rocking shaft F an
adjustable arm N carrying an arın or finger O, which is so placed and adjusted
that the bowl M on the revolving arm L comes into contact with the said 'finger O
in such manner as to partially rock the shaft F, causing the picking stick and picker
to advance in the box (as seen in dotted line in Fig 1) to meet the shuttle as it
arrives from the opposite box, by which means the shuttle is checked and sudden
stoppage thereof prevented. The arm N can be adjusted on the rocking shaft so
that the picker can advance in the box inore or less according to requirements.
It must be understood that the picking tappits are slided on the shaft J by the
ordinary means in such manner that the bowls M and P are presented first to
the shoe I and then to the finger O, then back again to the shoe, and so on, one
after another, according as selected by the pegging, jacquard or other form of
indicating apparatus. Fig 3 is end view of the picking tappits, also shewing shape
of finger which I prefer, the dotted lines shew position of parts when acted upon

page_text: by the bowl P. The finger O is preferably made to have some spring in it, so as
to prevent stiffness of the parts, and the said finger if desirable may be attached to
the picking shoe as shewn in Figs 4 and 5, which are plan and elevation of same.
When applying my invention to over-pick looms where the oscillatory picking
shaft is in a vertical position, I fix the adjustable arm mentioned above on the said
vertical shaft and I cause it to rock at the proper time so that the picker advances
to meet the shuttle by means of the ordinary picking tappit or by a bowl placed
thereon.
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
Firstly. The use and employment of the picking tappits for giving the picking
shaft an oscillatory motion for checking the shuttle, in addition to that given for
sending the shuttle across the loom.
Secondly. The combination of the parts F, O, and P, for checking the shuttle
in looms.