Improvements in Damask Weavers' Looms.
Year: 1888

page_text: Date of Application, 15th Sept., 1888
Complete Specification Left, 15th June, 1889-Accepted. 14th Sept.. 1889
Improvements in Damask Weavers' Looms.
A communication from OSCAR REIZ, of Neukirch, in the Empire of Germany,
Master Weaver.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.
do hereby declare the nature of this invention to be as follows:-
The object of the present invention is to construct a loom on which damask may be
woven, and which has no front reed. This improved loom is constructed on the system
of the Jacquard machine.
Two rows of lifting blades are arranged one above the other, the upper one of which
lifts the pattern wires and the lower one the satin wires. These wires are further
provided with two noses, the ordinary one of which is directed upwards and forwards
while the new or additional one is directed downwards and backwards. Both rows of
lifting blades may be moved by one bar in which case the pattern and the satin have
the same points of intersection, or each bar may be moved by an independent bar in
which case the pattern and the satin may have different points of intersection.
For each row of wires there is one upper or pattern blade arranged in front of the
wires for the upper or front nose and one lower or satin blade behind the wires for
the lower or back nose. The blades are journalled in the blade frame and are kept in
their normal slanting position by means of springs. The blades in the upper row lift
the wires of the needles which have passed into the cylinder, while the blades of the
lower row lift the wires of the needles which have not passed into the cylinder. As.
some of the blades do not lift their wires according to the intersection of the fabric
because of their movement, the intersection of the pattern is produced by the upper
blades and that of the satin by the lower blades.
In the simple arrangement in which the intersection of the pattern and the satin is
the same, bars are arranged between the two rows of blades, and these bars are on their
lower edge provided with teeth or projections which engage with the upper end of the
lower blades, and on their face with pins which engage with short arms attached
to the upper blades. The upper blades are moved forward and the lower ones
backward.
In the lathe of the machine and opposite the said bars are mounted cylinders pro-
vided with pins and with each stroke of the lathe one of these pins will push one of
the said bars and as these bars are mounted in the blade frame they slide with their
bent front end down the pin which bears against them, together with the blade
frame.
By the movement of the bars those blades are moved which are not to lift certain
wires according to the desired intersection and the number of bars and corresponding
pins on the cylinders of the lathe is dependent on the intersection it is desired to
produce.
The wires are mounted slanting and are only brought into vertical position when
standing on the card. To prevent the wires when lifted from rubbing on the eyes of
the returning needles, all wires are provided with an enlargement under the lower nose,
under which the needles move, and when the wires return to their position, they will
because of the inclined enlargement enter again between the eyes of the needles.
In case a separate bar and separate cylinders and pins are used for each row of
lifting blades the intersection of the pattern and of the satin may be different by
using different numbers of bars and pins for the two rows of blades. As the bars for
the upper row must be pushed in opposite direction to that one for the lower row,
the one for the upper row is provided with a pin at the end near the cylinder, behind
which pin bears a pivotted lever the other end of which is acted upon by the pin of
he cylinder by means of a slide.
:

page_text: In larger machines the blades are arranged loose in slots open at the top. Boards
with slots open at the bottom and exactly corresponding and registering with the
former slots are fastened to the blade fraine. On each side of the machine a hook is
provided for each blade, fastened to the blade frame and attached to the needles.
These are acted upon by a separate card cylinder. The movement of this cylinder is
produced by rollers attached to the cylinder supporting arms guided by curved guides
fastened to the frame of the machine. When the blade frame is descending the said
hooks engage with the blades and lift theni when the blade frame ascends, or they do
not touch them according to the action of the card of the cylinder on the needles.
To exert a greater pressure upon the lathe a roller is fastened to the blade frame
and works in a curved slot formed in a plate pivotted to the frame of the loom ; to
this plate is pivotted the end of a drawbar the other end of which is attached to the
lathe. When the blade frame moves up and down the roller acts upon the slotted
plate the drawbar of which moves the lathe.
Dated this 15th day of Sentember 1888
COMPLETE SPECIFICATION.
Improvements in Damask Weavers' Looms.
A communication from OSCAR REIZ, of Neukirch, in the Empire of Germany,
Master Weaver.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E. do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement :-
The object of the present invention is to construct a loom on which damask may be
woven and which has no lowering healds.
This improved loom is constructed on the system of the Jacquard machine.
Two rows of lifting blades are arranged one above the other the upper one of which
lifts the pattern wires and the lower one the satin wires. These wires are further
provided with two noses the ordinary one of which is directed upwards and forwards
while the new or additional one is directed downwards and backwards. Both rows of
lifting blades may be moved by one bar in which case the pattern and the satin have
the same points of intersection, or each row may be moved by an independent bar in
which case the pattern and the satin may have different points of intersection.
In the accompanying drawings:-
Fig. 1 represents in side elevation the upper part of a loom as seen from the
interior.
Fig. 2 is a detail of the two rows of lifting blades with one bar.
Fig. 3 is a detail in front elevation showing the arrangement of two cylinders
provided with pins actuating the bars.
Figs. 4 and 5 represent a modification for larger machines in side elevation seen
from the interior.
Figs. 6 and 7 are respectively a front and an end elevation of a loom showing the
application of this invention thereto.
ог
For each row of wires p several of which go to one needle N there is one upper_o
pattern blade m arranged in front of the wires for the upper or front nose and one
fower or satin blade a behind the wires for the lower or back nose h. The blades are
journalled in the blade frame and are kept in their normal slanting position by means
of springs f. The blades m in the upper row lift the wires of the needles which have
passed into the cylinder, while the blades a of the lower row lift the wires of the
needles which have not passed into the cylinder. As some of the blades do not lift
their wires according to the intersection of the fabric because of their movement the
intersection of the pattern is produced by the upper blades m and that of the satin by
the lower blades a.

page_text: In the simple arrangement in which the intersection of the pattern and the satin is
the same, (fig. 2) bars 6 are arranged between the two rows of blades and these bars
are on their lower edge provided with teeth or projections Z which engage with the
upper end of the lower blades a and on their face with pins s which engage with
short arms attached to the upper blades m. The upper blades are moved forward
and the lower ones backward.
In the lathe L of the machine (figs. 1 and 3) and opposite the said bars 6 is
mounted a cylinder C provided with pins i and with each stroke of the lathe one of
these pins will push one of the said bars and as these bars are mounted in the blade
frame M they slide with their bent front end e down the pin i which bears against
them together with the blade frame.
By the movement of the bars b are operated those blades a and m which are not to
lift certain wires p according to the desired intersection, and the number of bars
and corresponding pins on the cylinders of the lathe is dependent on the inter-
section it is desired to produce.
The wires p are mounted slanting towards the card cylinder K and are only
brought into vertical position when standing on the card. To prevent the wires
when lifted from rubbing on the eyes of the returning needles all wires are provided
with an enlargement p under the lower nose under which the needles move and
when the wires return to their position they will because of the inclined enlargement
enter again between the eyes of the needles.
In case separate bars b and b¹ and separate cylinders C and C and pins i and i¹
are used for each row of lifting blades as in figure 1, the intersection of the pattern
and of the satin may be different by using different numbers of bars and pins for the
two rows of blades. As the bars bi for the upper row must be pushed in an opposite
direction to that one for the lower row the one for the upper row is provided with a pin s¹
at the end near the cylinder C behind which pin bears a pivotted lever n the other end
of which is acted upon by the pins 2 of slides S operated by the pins i of the
cylinder C¹.
In larger machines (figs. 4 and 5) the blades are arranged loosely in slots open at
the top. Boards with slots open at the bottom and corresponding and registering
with the former slots are fastened to the blade frame M. On each side of the
machine a hook g is provided for each blade, fastened to the blade frame and attached
to the needles N¹. These hooks g are employed in place of the before described
bars for operating the blades a and m and are acted upon by a separate card
cylinder K¹. The movement of this cylinder is produced by rollers R attached to the
cylinder supporting arms t guided by curved guides G fastened to the frame A of the
machine. When the blade frame is descending the said hooks g engage with the blades
and lift them when the blade frame again ascends or they do not touch them,
according to the action of the card of the cylinder on the needles N¹.
To exert a greater pressure upon the lathe L a roller o is fastened to the blade
frame and works in a curved slot formed in a plate P pivotted at y to the frame of
the loom to this plate is pivotted the end of a draw bar T the other end of which
is pivotted to the lathe at 'Z. When the blade frame moves up and down the roller o
acts upon the slotted plate the draw bar of which moves the lathe.
In figs. 6 and 7 A is the machine frame, two guides fixed to the blades m and a,
g the hooks attached to bars 9 and so arranged that those of the said hooks which are
directly influenced by the needles N¹ will cause the hooks on the other side to move at
the same time. The needles N¹ guided in the box B' are pushed along by the card
cylinder K¹ and are moved backwards and forwards by the frame M in conjunction
with the curved guides G.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :--
1. In a damask loom without a lowering heald the arrangement of separate movable
blades m for lifting the pattern wires or for producing the intersection of the pattern
.

page_text: threads and of separate movable blades a for lifting the satin wires or for producing
the intersection of the satin threads substantially as herein described and illustrated in
the accompanying drawings.
2. The wires p necessary for the arrangement claimed in the foregoing claiming
clause the said wires being formed with two noses an upper front one u engaging with
the blades m and a lower back one h engaging with the blades a substantially as
hérein described and illustrated in the accompanying drawings.
3. In combination with the arrangements claimed in the two foregoing claiming
clauses, the draw bar Tone end of which is connected with the lathe L while the
other end is connected to a plate P pivotted to the frame of the loom and actuated by
a roller o working in a curved slot of the said plate P for the purpose of exerting a
greater pressure on the lathe L substantially as herein described and illustrated in
the accompanying drawings.
Dated this 15th day of June 1980
W. P. THOMPSON & BOULT,
Agents.