MENTS IN LOOMS FOR WEAVING
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by John Garstang at the Office of the
Commissioners of Patents on the 15th March 1880.
JOHN GARSTANG, of Burnley, in the County of Lancaster, Overlooker.
MENTS IN LOOMS FOR WEAVING."
" IMPROVE-
The first part of my Invention relates to improvements in the arrangement and
construction of the dobby or the jacquard apparatus, also in the novel mode or
manner of stopping or reversing the barrels (used in such machines) on the absence
or breakage of the weft.
In this arrangement the gear wheels connecting the barrels are constructed with
a rim around which is cast or placed a number of lugs, which act similar to and in
place of the ordinary ratchet wheel, and are actuated by pushers or other like means,
used for the purpose of actuating such barrels. The retaining slide bracket so bears
against the said lugs, thus dispensing with the use of the star wheel. I actuate the
knives or lifting levers by means of a lever having two arms, which is mounted on
a spindle. The said arms branch in opposite directions to each other, and are acted
upon by a crank pin from the crank or tappit shaft. One arm of the said lever is
connected by a link to the end of one of knives, the other arm being likewise
connected to the other knife or lifting lever, so that with the vibrating or
reciprocating action of the before mentioned armed lever a reverse action will be
given to each of the knives or lifting levers. The armed lever is slotted or so arranged
that the distance at which the connecting links are attached from the centre of the
aforesaid spindle may be varied, thus admitting of one end of the knives or lifting
levers being moved when desired a greater distance than the other. We further
propose to place on the other end of the aforesaid spindle anothar similar double
armed lever to the one above mentioned, and connected_by_similar links to the other-
I will
Lends-of-the-said-knives or lifting levers, thereby raising both ends thereof.
now describe the arrangement whereby the barrels before mentioned may be
reversed on the absence or breakage of the weft, which may be accomplished by
means of a lever mounted on one of the barrel shafts and provided with a catch,
the said lever having an handle at its lower extremity, so that the attendant by
moving the handle too and fro turns back the barrels by the said catch; or the
barrels may be reversed by connecting the handle of the lever to the weft stop
motion, which will on the absence or breakage of the weft move the handle, and
thereby turn back the barrels; or the pusher catch may be lifted out of contact with
the teeth or lugs of the ratchet wheel by connecting the pusher catch with the weft

page_text: stop motion. By these means the pattern barrels may be stopt or reversed, and thus
remedy the defect in the pattern which occurs on the absence or breakage of the
weft.
The second part of my Invention relates more particularly to the weaving of
that class of cloth known as mock lenos or open cloth, and consists essentially in
the application of a vibrating rod or bar, which is placed in such a position in the
warp as to bear against and tighten the open warp threads, the said vibrating bar
being actuated from the jacquard or other moving parts of the loom.
The third part of my Invention relates more particularly to leno weaving, in
which I dispense with the dupe heald, and use in lieu thereof a peculiarly formed
reed, part of the dents of which are about half the length of the other; the shorter
dents are provided with eyes through which the warp threads pass, a lateral motion
being imparted from any convenient moving parts of the loom.