Improvements in Jacquard Machines for Weaving.
Year: 1893

page_text: Date of Application, 9th Nov., 1893
Complete Specification Left, 9th Aug., 1894-Accepted, 15th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Jacquard Machines for Weaving.
I, JOHN WILLIAM HILL of Ladybauk, in the County of Fife, North Britain,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in Jacquard machines for weaving.
The invention consists of an arrangement of two barrels in a frame which can
be applied to Jacquard machines for the weaving of all kinds of fabrics. The
frame is moved up and down the face of the machine between two uprights which
are connected to the slide rods of the machine. The movement is obtained by
means of a lever from the top of the frame and can be applied to the loom as is
necessary.
According to the present mode of working a Jacquard machine having one
barrel for working a border and a centre pattern, it requires two different sets of
cards. After the weaver works in the centre pattern, the card shifter has to
take out the barrel, lift off the centre pattern set of cards, put the border pattern
set of cards on to the barrel and put the barrel back into its place; this entails
time, trouble and wear and tear of the cards. By my present invention, which
consists in the employment of two barrels in a sliding frame with each set of cards
carried on a separate barrel, the change from one pattern to the other can be
quickly and efficiently made by the raising or lowering of the said frame.
Dated this 8th day of November 1893.
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioner's Agents.
COMPLETE SPECIFICATION.
Improvements in Jacquard Machines for Weaving.
I, JOHN WILLIAM HILL, of Ladybank, in the County of Fife, North Britain,
Manufacturer, 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 :-
This invention relates to improvements in Jacquard machines for weaving and
has for its object to provide a Jacquard machine, having two barrels, for weaving
all kinds of fabrics, such as fabrics having a central and border pattern, or for
cross border weaving.
The Jacquard machines, having one barrel, at present in use for working a
border and a central pattern, require two different sets of cards, which have to be
changed for each pattern, that is to say, after the weaver has worked in the central
pattern, the card shifter has to take out the barrel, lift off the centre pattern set
of cards, put the border pattern set of cards on to the barrel and then put the
barrel back into its place; this entails time, trouble and wear and tear of the
cards.
According to the present invention I employ two barrels mounted in a movable
frame, in such a manner, that the top one which carries the centre pattern set of
cards, or the lower one which carries the border set of cards, or vice versa, may be
brought into position when required by the weaver and thus dispense with the
services of a card-shifter.

page_text: But in order that my said invention may be more readily understood and easily
carried into effect, I will proceed to describe the same with reference to the
accompanying drawings.
Figure 1 is an elevation, Figure 2, a side elevation and Figure 3 a plan shown
partly in section of my improvements.
Referring to the said drawings I employ two card barrels or cylinders A, B,
either of which may be used for any desired pattern; the said barrels A and B
are adjustably mounted in bearings a. b which are carried by the movable frame C,
which is so mounted in the grooves D, (Figure 3) of the two uprights E, as to be
capable of being moved up or down by the weaver so as to bring the desired barrel
and set of cards opposite the needles or fingers of the machine.
The uprights E which are preferably connected to each other at top and bottom
by cross stays F are suitably connected to the sliding rods G of the ordinary
Jacquard mechanism. The up and down movement may be given to the movable
frame C, by the weaver, through the medium of a suitable lever, mounted on the
top of the jacquard or loom, the end of which is connected to the said frame C
by means of the chain or cord H. The said movable frame C and uprights E
are provided with the necessary means for carrying the hammers, drawbacks and
catches, the lower catch being suitably shaped so as to be automatically brought
into position for action on the raising up of the movable frame. The guide rollers
for the cards are suitably arranged for each barrel or cylinder.
As a modification I may provide the sliding rods G of the Jacquard mechanism
with suitably shaped brackets, in lieu of the uprights E, and so form or provide
the movable frame C with side rods which would work in said brackets and so
enable the frame and barrels to be raised or lowered as desired. My invention is
also applicable to machines in which swinging frames are used.
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 :-
1st. The general arrangement, construction and combination of the various parts
constituting the improvements in Jacquard machines for weaving, substantially as
herein before described and shown in the accompanying drawings.
2nd. In Jacquard machines for weaving fabrics having two patterns or for cross
border weaving, the two card barrels or cylinders A, B mounted in the movable
frame C, substantially as herein before described and shown in the accompanying
drawings.
Dated this 8th day of August 1894
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents: