IMPROVEMENTS IN SHUTTLE MOTIONS FOR LOOMS
Year: 1878

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents, 66,
Chancery Lane, in the County of Middlesex, Mechanical Draughtsman, for
the Invention of "IMPROVEMENTS IN SHUTTLE MOTIONS FOR LOOMS."
communication from abroad by Joseph Burton, of Newark, in the State of
New Jersey. United States of America.
A
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton at
the Office of the Commissioners of Patents on the 16th December 1878.
ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Mechanical Draughtsman. "IMPROVEMENTS IN SHUTTLE
MOTIONS FOR LOOMS." [A communication from abroad by Joseph Burton, of
Newark, in the State of New Jersey, United States of America.]
This Invention relates to looms, more especially those for weaving narrow wares
in which the shuttle driver is fitted with fingers that engage with opposite ends of
the shuttle to project the latter alternately in opposite directions through the shed,
either finger which is passing the warp being always disengaged from the shuttle,
while the other one is engaged therewith.
The Invention consists in a combination with the shuttle driver or carrier of a
screw, having a rotary motion in opposite directions alternately, and a nut con-
necting said screw with said shuttle driver or carrier for giving the necessary
motion to the latter, to project the shuttle alternately in opposite directions through
the shed, whereby a positive smooth and easy shuttle driving motion is obtained.
The Invention also consists in a combination with the shuttle driver or carrier, a
screw having a rotary motion in opposite directions alternately, and a nut con-
necting said screw with said driver or carrier for operating the latter by the screw
to project the shuttle alternately in opposite directions through the shed of buffer
springs at opposite ends of the screws for the nut, as it is alternately moved in
opposite directions to strike against, whereby the momentum of the shuttle, shuttle
[Price &d1

page_text: driver and nut is overcome, and said devices are stopped without shock and
started in their return movement.
The Invention likewise consists in a combination with the shuttle carrier or
driver, a nut attached thereto, and a screw having a rotary motion in opposite
directions alternately for actuating said shuttle carrier of certain, simple, and
efficient means for communicating motion to said screw, the same consisting of a
rotating crank or crank pin, a toothed sector, a rod connecting said crank with a
crank pin for oscillating said sector, and a pinion on the screw with which said
sector engages. Furthermore, the Invention consists in a combination with the
shuttle driver, having supporting wheels or rollers and sliding fingers for actuating
the shuttle, of a rail having a cam slot in it for operating said fingers, a nut con-
nected to the shuttle driver, a screw carrying said nut, and equal in length to the
entire throw of the shuttle, and mechanism for imparting to said screw a rotary
motion in opposite directions alternately.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alfred Vincent Newton in the Great Seal Patent Office on the 16th
June 1879.
ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Mechanical Draughtsman. "IMPROVEMENTS IN SHUTTLE
MOTIONS FOR LOOMS." A communication from abroad by Joseph Burton, of
Newark, in the State of New Jersey, United States of America.
This Invention relates to looms, more especially those for weaving narrow wares
in which the shuttle driver is fitted with fingers that engage with opposite ends of
the shuttle to project the latter alternately in opposite directions through the shed,
either finger which is passing the warp being always disengaged from the shuttle,
while the other one is engaged therewith.
.
The Invention consists in a combination with the shuttle driver or carrier of a
screw, having a rotary motion in opposite directions alternately, and a nut con-
necting said screw with said shuttle driver or carrier for giving the necessary
motion to the latter, to project the shuttle alternately in opposite directions through
the shed, whereby a positive, smooth, and easy shuttle driving motion is obtained.
The Invention also consists in a combination with the shuttle driver or carrier, a
screw having a rotary motion in opposite directions alternately, and a nut con-
necting said screw with said driver or carrier, for operating the latter by the screw
to project the shuttle alternately in opposite directions through the shed of buffer
springs at opposite ends of the screw for the nut as it is alternately moved in
opposite directions to strike against, whereby the momentum of the shuttle, shuttle
driver, and nut is overcome, and said devices are stopped without shock, and started
in their return movement. The Invention likewise consists in a combination with
the shuttle carrier or driver, a nut attached thereto, and a screw having a rotary
motion in opposite directions alternately for actuating said shuttle carrier of
certain, simple, and efficient means for communicating motion to said screw, the
same consisting of a rotating crank or crank pin, a toothed sector, a rod connecting
said crank with a crank pin for oscillating said sector, and a pinion on the screw
with which said sector engages. Furthermore, the Invention consists in a combi-
nation with the shuttle driver, having supporting wheels or rollers, and sliding
fingers for actuating the shuttle, of a rail having a cam slot in it for operating said
fingers, a nut connected to the shuttle driver, a screw carrying said nut, and equal
in length to the entire throw of the shuttle, and mechanism for imparting to said
screw a rotary inotion in opposite directions alternately.
The nature and objects of the Invention having been specified, its description
will be proceeded with in reference to the accompanying Drawing.
Fig. 1 represents an elevation in direction of the length of the shuttle race of
such portion of a loom as relates to, or has combined with it the means for actuating
and controlling the motion of the shuttle driver. Fig. 2 is a plan or horizontal
sectional view of the same, and Fig. 3 an end view thereof.
A is the shuttle carrier or driver which is fitted to reciprocate in or along a
straight race, and is guided in such action by upper and lower rollers a, b, arranged
to travel along upper and lower edges of a fixed plate or bar B; C, C, are the
fingers which project the shuttle alternately in opposite directions through the shed,
and which as they respectively pass the warp, are disengaged from their respective
ends of the shuttle, one finger however being always engaged with one end of the
opposite end of the shuttle. These fingers are fitted to slide up and down and
within or up through the shuttle carrier or driver A, and are actuated alternately
in reverse directions up and down to pass the shuttle through the shed without
striking or catching the latter by means of studs or rollers C, C, on said fingers
travelling within and along a straight and double cammed groove or slot d, d, in
the bar B.
The means for operating the shuttle driver consist in part of a longitudinally
arranged screw D, having a rotary motion in opposite directions alternately, and a

page_text: nut E fitted to said screw, and connected with or attached to the shuttle driver, so
that as said screw is reversed in its rotary movement, it will move the nut E and
the shuttle carrier or driver A alternately in opposite directions, and cause the
advancing finger C as it nears the warp to be disengaged from the shuttle, while
the other finger is engaged therewith.
This motion of the screw D which should be of a quick or coarse pitch, and be
equal in length to the throw of the shuttle, obtains for the shuttle driver a very
smooth or easy comparatively noiseless and perfect action.
The nut E may be connected with the shuttle driver or carrier A. by a pin or
bolt e.
G, G, are spiral springs arranged around opposite ends of the screw within the
side frames S, S, of the loom. These springs which are alternately struck by
the nut E as the latter is moved by the screw D first in one direction and then in
the other, are of such tension as just to overcome the momentum of the shuttle,
shuttle driver and nut, and so to stop the latter without shock, and to start them in
their return movement. The screw D also serves as a mandril to carry said springs.
The rotation of the screw D alternately in reverse directions is obtained from
a shaft H arranged to rotate in one direction only. This is done by means of a
crank or crank pin I attached to the shaft H, and connected by a rod J within
crank pin g of a vibrating toothed sector K. which is fitted to work on a fulcrum f,
and which gears with a pinion L on the screw D. This contrivance forms a very
simple and efficient means for actuating the screw, and the rotating crank pin I is
so arranged that it comes to a stop or reaches its dead centre at the end of the
stroke of the shuttle carrier in either direction, and gives the greatest velocity
where requisite, that is, at the middle of the stroke of the shuttle. The cranks or
crank pins I and g may also be made adjustable, and afford convenient provision
for varying the stroke of the shuttle for weaving narrower or wider goods.
Having now set forth the nature of the Invention of "Improvements in Shuttle
Motions for Looms," as communicated to me from abroad, and explained the manner
of carrying the same into effect, I wish it to be understood that under the above in
part recited Letters Patent I claim,-
First. The combination with the shuttle driver or carrier of a screw having a
rotary motion alternately in opposite directions, and a nut connecting said screw
with said shuttle driver or carrier, for giving the necessary motion to the latter to
project the shuttle in opposite directions alternately through the shed, substantially
as specified.
Second. The combination of the springs G, G, with the screw D, having a rotary
motion alternately in opposite directions, the nut E, E, and the shuttle carrier or
driver A, essentially as described.
Third. The combination of the rotating crank or crank pin I, the rod J, the
toothed sector K, the crank pin g, the pinion L, the screw D, the nut E, and the
shuttle carrier or driver A, substantially as and for the purpose specified.
Fourth. The combination with the shuttle driver A, having supporting wheels or
rollers a, b, and sliding fingers c of the rail B, having the cam slot d, the nut E
connected to the shuttle driver, the screw carrying said nut, and equal in length to
the entire throw of the shuttle and mechanism, substantially as described for
imparting to said screw rotary motion alternately in opposite directions, essentially
as set forth.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto set my
hand and seal, the Sixteenth day of June, in the year of our Lord One
thousand sight hundred and