Improvements in Picking Motions and in Shuttle Guards for Looms
Year: 1888

page_text: PROVISIONAL SPECIFICATION.
Improvements in Picking Motions and in Shuttle Guards for Looms
I WILLIAM LONGBOTTOM of
Engineer and Loom Maker, do
follows:-
for Narrow Goods.
Nelson Foundry, Barnsley in the county of York,
hereby declare the nature of this Invention to be as
My invention firstly consists in a novel positive picking motion for weaving narrow
goods from one piece and upwards at the same time, I can now construct a loom to
weave several pieces at one time with selvages to each, such as tape, wicks, webbing,
braces, binding, garths, belting, tubes, and other kinds of narrow goods.
Hitherto the looms used for this purpose have used a small bobbin drawing the
weft off in the centre, this causing frequent stoppages and loss of time.
In my invention I use a shuttle that takes an ordinary weft bobbin or cop or for
coarse goods, a wound cop drawing the weft from inside, and I make the fly or
slay race hollow with a groove in the centre in this groove, I employ steel pins with
a pulley or runner, this pulley runs in a groove with inclined planes, to lift or
lower, these pins rising in the boxes and in reedspace, so that they lower to pass
under the warp.
I employ a rod fitted with these pins sliding in a groove, so that the pulley rises
and lowers. This rod is driven by a crank motion from end of the loom, giving the
sweeps required for carrying the shuttle from one box to another, the proper distance
through each warp.
I employ two pins to each shuttle, and two holes under the side of the shuttlo
corresponding with the pins; when the shuttle is passing through the warp, one pin
lowers to the level of the fly, and passes under the warp, and rising up at the opposite
side, and enters the same hole in the shuttle, as soon as this is done, the second peg
leaves the shuttle, and lowers to pass under the warp, and rises and enters the hole
in the shuttle, so that there is always one full peg in the shuttle, to carry them
through from box to box.

page_text: The shuttle fitting on to the pegs requires as well as a side guide, a top guide for
this purpose, I employ a long rod reaching to the extreme end of the boxes, this rod
is fixed on hinges on one side, and in the box backs I insert open spiral springs to
lift the wood rib up, and in the hand rail I insert a small iron rod and three small
eccentrics at intervals for the purpose of pressing down the guide rod to its proper
height to guide the shuttles, this eccentric rod is moved by two small handles, one at
cach end of the hand rail, so that when the loom is stopped to change the shuttle
this small handle is pulled over, and the springs lift up the guide rod, so the shuttles
are taken out, and refilled with weft, and replaced in position. The handle in hand
rail is then turned back pressing down the eccentric which presses the guide rod
into position and the loom is ready for work again.

page_text: to weavo Tour widths of cloth.
Fig. 2. is a sectional elevation of race with shuttle carriers and pins and grooves.
Fig. 3. is an enlarged end elevation in section of shuttle and fly or race with
eccentric motion for holding down and releasing the slide.
Fig. 4. is an elevation of shuttle carrier and pins.
A is the frame of the loom B are the slay or fly swords, C is the fly slay board or
shuttle race, D are the shuttles, E is a disc or face plate upon a suitable shaft driven
preferably from the tappet shaft by mitre wheels or other gearing, upon the disc is
a stud or pin E for connecting rod E2 to another stud E³ in the slot E of the
lever the connecting rod has an opened or forked end, large enough to allow the
lever F to vibrate between the fork, the lever F is pivotted on a shaft or stud F¹,
G is a short link lever secured at one end to a shed G¹ on the loom frame and to a
lever so as to cause a dwell in the motion of the said lever, H is a connecting rod
from the lever F to the shuttle carrier J within the hollow of the fly, race or stay
board. D are the shuttles in position, L the reed spaces, M are the backs of the
shuttle boxes, N are the eccentrics fixed on each end and one in the middle of the hand
rail for holding the shuttle guide P in position.
The shuttle guide P is the whole length of the fly or race, and is hinged at the
back at P and provided with spiral springs P2 let into the box back for raising the
guide when the eccentrics M are turned back, for facilitating the replenishing of
the shuttles with weft, the eccentrics N are then returned and you push down the
guide into position for working, R is the hand rail and S the small shaft carrying
the eccentrics N.

page_text: I make the fly or race C of the slay hollow, so as to carry the shuttle carrier J,
there is a suitablo slot S₁ along the centre of the race, in this slot I employ steel
pins T, two to each shuttle, the pins are each provided with steel runners T', these
runners travel in the groove-T2, which has inclined planes T3 at intervals, which rise
to carry the shuttle and lower to pass the warp.
The shuttle carrier J is made long enough to carry the full number of shuttles
used, and moves backwards and forwards in proportion to the width of web or cloth
intended to be woven. The steel pins T work preferably in brass bushes, and the
steel runners T run in the groove T3 which is provided with inclined planes T3 to
lift the steel pins into a holo T' in the underside of the shuttle, the said pins T
carry the shuttle, they lower to pass under the warp, and rise to enter the shuttle
before the other pin leaves the shuttle so that there is always a full pin T in the
shuttle to carry it, slots To are provided in the shuttle carrier to allow for the rising
and falling of the pins seo Fig. 4. The fly or race is fit with box backs between
every reed and guides T4 at the front to keep the shuttle in position.
Having now particularly described and ascertained the nature of this Inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The general construction and arrangement of positive picking motion for one
up to twelve shuttles as shown and described.
2. The shuttle carrior with zigzag slide to lift and lower the pins and carry
shuttles through the warp shed as and for the purposes substantially as shown and
described.
3. The eccentric guide motion for keeping the shuttle in position and relieveing it,
as and for the purposes substantially as shown and described.
Dated the Douban 1000
JOHN E. WALSH,
Crossley Street, Halifax,
Agent for Applicant.