IMPROVEMENTS IN MACHINERY AND APPARATUS APPLICABLE TO WARP LOOMS
Year: 1884

page_text: I, ARTHUR WILLIAM CHAMBERLAIN SHUTTLEWOOD, in the employment of
Messrs Richard Harris and Sons of Braunstone Gate, Leicester, in the county of
Leicester, Hosiery Manufacturers do hereby declare the nature of my invention
for IMPROVEMENTS IN MACHINERY AND APPARATUS APPLICABLE TO WARP LOOMS,
to be as follows:-
Between the standards of a warp loom, I secure a tie bar to the back of which is
a vertical slotted brass sley, in 'each slot, a needle bit slides, in the upper end of
which a tumbler needle is secured, near the upper end the sley projects beyond the
front of the needle bits and forms a double V which holds a reversely grooved bar,
to the back of which, leads carrying springs are secured one spring to each needle
bit, which presses upon a double incline at the back of the bit, each needle bit has
a neb at the bottom projecting on the front edge, and two other nebs projecting
from the back edge, opposite cach row of back nebs is a bar, each of which slides
horizontally, and is rocked by cams and levers, each bar has leads carrying presser
points secured to it, above the needle heads I employ the required number of guide
bars constructed and operated in the usual way at the front of the needle bit sley
I employ a sliding bar to which leads are secured, which carry points for holding
down the work, the sliding of the whole of the bars is effected by a spring dropper
jacquard, and below the needle bits is a bar sliding and rocking in bearings attached
to the framing of the loom the rocking being effected by cams and levers, the upward
movement of this bar places the whole of the needles in position to receive the
threads, from the guides. A warp loom having the above described machinery and
apparatus applied thereto, enables me to produce a combination of fabrics.

page_text: Figure 1 shows a vertical sectional view of a warp loom with my Improve-
ments applied thereto, but having the lower portion of the end standard broken
away.
Figures 2. 3. 4. 5. 9 and 10 are separate views, of portions of the apparatus
severally referred to hereafter and Figures 6. 7 and 8 show side views of the cams
I employ to communicate movement to the several parts.
Between the standards A of a warp loom I secure a tie bar B at the back of
which is a vertically grooved brass sley C, in each groove a needle bit slides in the
upper end of which a tumbler needle C¹ is secured, the upper end of the sley
projects at the back beyond the needle bits and forms a double V which holds a
reversely grooved bar D, to the back of which leads having springs D¹ cast in them
are secured a back view and end view of one such lead of springs are shown at
Figures 10, there is one spring to each needle bit, each spring presses upon a double
incline C at the back of the bit and keeps it in position. Each needle bit has a
projection C at the bottom on the front edge which prevents the bit from being
lifted too high when at work, below the needle bits (one of which is shown view
at Figure 9) is a L shaped bar E the upward movement of which places the whole
of the needles in position to receive the threads from the guides A¹ cast in leads
and secured to guide bars which are rocked to and fro and traversed over the
needles in the usual way "a front view and end view of one lead of guides are
shown at Figures 5.
The bar E is provided with four brackets El "two of which are shown in the
half length plan Figure 2" cach brackets carries an axle pin which is passed
through a hole near the front end of one of four bearing arms E2 which are secured.
to a rocking axle bar E³ carried by three bearing blocks E' attached to the back
upper angular tie bar of the loom. The upward and downward movements of the
bar E are effected by one or more links E5 each of which is hinged at its upper cid
to the under side of the bar and has its lower end hinged to the front end of a
lever which rocks on an axle shaft E carried by bearings secured to the framing of
the loom, the lever carries a truck E7 at its back lower end, the truck being
operated by a cam Es shown in side view at Figure 7. The cam ES and the whole of
the cams hereafter referred to as well as the cams usually employed are secured on
and carried by a cam shaft A³ caused to revolve by toothed gearing "shown at
Figure 1 in outline only "driven by a belt passed round a driving pulley by the
side of a fly wheel secured on the left end of a handle shaft A³ in the usual way.

page_text: The right end of the cam shaft A is provided with the usual toothed bevel
wheel for driving a spring dropper jacquard hereafter referred to.
Each needle bit has two nebs C4 C5 projecting from its back edge, and opposite
the upper row of nebs C is a bar F provided with four pair of arms F1 "two pairs
of which are shown at Figure.2 each pair of arms carry two pins which slide in a
bearing arm F secured to a racking axle bar F supportod by the bearings E, the
axle bar F is provided with an arin F which projects towards the front of the
loom, the front end of the arm terminates under the upper hooked end of a rod F
to which a light bar F is attached the left end of this bar has a spring secured to
it and to a bracket on the framing of the loom, this spring keeps the rod F³ in
position on the arm F as it is traversed to the right by the operation of the spring
dropper jacquard, to allow for such traverse the light bar F which is also traversed
by the jacquard slides in slotted bearings F' which are secured to the back of the
reversely grooved bar D before named, and the lower end of the rod F³ is double
or swivel hinged to a lever Fs which rocks at one end on an axle secured to the.
lower front angular tie rail and is provided at its other end with a truck F' which
is actuated by a cam F shown in side view at Figure 6. Besides the rocking move- :
ment produced by the cam F10 the axle bar Fs is caused to slide in the bearings E+
(at the same time as an axle bar Gs hereafter referred to) by the following means,
The back of each bar is provided with a bracket carrying a stud each of which take
into a slot in the upper end of a rocking lever H carried by an axlo pin in an arm
secured to the back top angular tie bar the lower end of the lever H is forked and
carries two trucks H', H2, which are actuated by a double or counter cam H³ shown
in side view at Figure 8, the largest side of the cam works on the truck H but
passes clear of the truck H2 in a groove cut in it, shown by the dotted ring, the
smallest side of the cam works on the truck H2 thus keeping the axle bars F³
and G steadily in position.
Opposite the lower row of nebs Cs of the needle bits is a bar G provided with
five pair of arms G₁ "three pair of which are shown at Figure 2 each pair carrying
two pins which slide in a bearing arm G* secured to a rocking axle bar G³ supported
by the bearings E, one of the bearing arms G³ terminates under the upper hooked
end of a rod G¹ to which a light bar G³ is attached the left end of which is provided
with a spring the bar being traversed by the jacquard in the same way as described
for the bar Fe, the lower end of the rod G is swivel hinged to a lever Go which
rocks on the axle shaft E° the back end of the lever carries a truck E' which is
actuated by a cam E³ shown in side view at Figure 7.
The bars F and G are each provided with a lever and a spring attached to it and
to the front top tie bar to bold them in their raised position each bar carries presser
point leads "one of which is shown in plan and end view at Figures 3" Each bar
has a spring at one end and is traversed as required by the pattern cards operating
the spring droppers of the jacquard at the opposite end.
The presser points are brought forward to lie over the nebs at the back of the
needle bits, they are then lowered carrying the-needle bits and needles with them
until the work is knocked over the hooks of the needles, the points then fall back
and rise into the position shown at Figure 1, the bar E rising at the same time.lifts
the whole of the needle bits and needles ready for the next course.
The sinker hooks are cast in leads I secured to a bar supported by vertical rods
each rocking on an axle at its lower end the bar being moved towards and from
the needles by levers carried by a rocking axle shaft at the front of the loom
actuated by a cam in the usual way. The bar E which locks up the needle bits is
moved endways by the attendant so that it falls down on its axles clear of the
needle bits when one or more may be taken out when a needle is broken to insert
another or for other purpose.
The bars carrying the presser point leads have an equal number of points to each
bar but are reversely placed the points on one bar being opposite the spaces without
points

page_text: In the drawings one presser point lead is shown the width of twenty four needle
bits having eight presser points near each end the next lead on each side will have
only eight points in the centre that is to say the bar will have eight points cast in
the leads and eight left out its whole length with such an arrangement of points,
the eight guides opposite the needle bits operated by the points carry threads then
eight guides are left without threads and so on across the machine in the front
guide bar when one guide bar only is employed in which case the top presser point
bar is traversed so as to lower eight alternate needle bits and needles and miss
eight alternate needle bits and needles such arrangement producing what is called
a shell pattern by traversing the front guide bar and top presser point bar together.
When a combination of fabrics is required to be made I enter eight threads in the
front guide bar and miss eight alternately, then enter eight in the back guidé bar
opposite to where they are left out in the front bar, and traverse the front guide
bar and top presser point bar together and the back guide bar and bottom presser
point bar together two distinct fabrics are produced joined together, the patterns
depending upon the number of guides supplied with threads and a like number of
presser points being traversed with them.
The combined movements of the various instruments during the working of a
course are as follows Either or both of the presser point bars are caused to descend
so that each point may lower its needle bit immediately the thread guides A¹ have
lapped their threads on the needles the sinker hooks I which form the loops and
hold them down to clear the latches of the needles being moved to allow the work
to be knocked over the needle heads the sinker hooks are then moved into the
position shown at Figure 1 ready for the next course.
i
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-
The construction and employment of bars carrying presser points to actuate
needle bits and needles for making tuck presser work and a combination of fabrics
at one and the same time substantially as and for the purpose herein before
described and illustrated in the drawings annexed.
Dis nousutrauth dow of July, 100%