IMPROVEMENTS IN JACQUARD MACHINERY AND APPARATUS APPLICABLE THERETO
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Robert Scott at the Office of the
Commissioners of Patents on the 29th August 1883.
ROBERT SCOTT, of the Town and County of the Town of Nottingham
"IMPROVEMENTS IN JACQUARD MACHINERY AND APPARATUS APPLICABLE THERETO
"
My improved machinery and apparatus consists of the following parts namely a
longitudinal frame the vertical sides of which are capable of sliding vertically and
horizontally in slots in brackets attached to the framing of the machine to which it
may be applied or in slots in standards secured to the floor, one or more indexes
are provided to shew the vertical rise or fall of the frame to which one or more
indexes are secured to shew the right or left traverse of the Frame which is held
to a stop at one end by a spring. The horizontal traverse of the Frame from the
stop is effected by the interposition of spring droppers in one of the boxes of a
jacquard such box being made somewhat longer than the other boxes at its outer
end which is slotted to receive an arm secured on the underside of one end of the
frame. The card cylinder of the jacquard besides being pierced for the tails of the
spring droppers is also pierced with one or more rows of holes for the tails of one or
more series of square plugs which slide vertically in the sley plate above the card
cylinder, the tails of the plugs vary in length and there being one such jacquard
machine provided with square plugs at and under each end of the frame, and the
cards on each being punched alike, the plugs selected having tails of the same
length the frame will be raised or lowered vertically and always remain level.
Both jacquards are driven simultaneously by toothed gearing connecting them to
the machine to which they are applied or to the framing holding the fabric to be
operated upon. The sides of the frame form bearings for or bearings are attached
thereto to carry the operating parts for producing reciprocating movements to a
series of needles or other instruments each provided with a thread, and a series of
thread retaining hooks or shuttle carriers and shuttles each carrying a spool of
thread, either arrangement being of the usual construction employed for forming
a stitch or for securing a thread or threads on a fabric. In addition to the above
near one end of the frame a bracket bearing is attached either to the fabric
producing machine or to a frame holding the fabric to be operated upon, in this
bracket the upper end of a vertical shaft revolves in which a key way is cut to
receive a key secured in the boss of a toothed bevel wheel which gears into a
LD077

page_text: similar wheel on the shaft of the operating parts before named this shaft also
having a key-way cut in it, the key of the wheel on the vertical shaft allows the
frame to rise or fall in the slots, and the key of the wheel on the horizontal shaft
allows the frame to slide horizontally to the right or left, the lower end of the
vertical shaft carries a toothed bevel wheel which gears into a similar wheel, the
axle of which is supported by the framing of the machine to which my improved
machinery and apparatus may be applied or to the frame carrying the fabric to be
operated upon. The above described machinery and apparatus is equally applicable
for embroidering any kind of fabric after it is made as for embroidering fabrics as
fast as they are made..
Suppose for instance I wish to embroider a fabric made on a twist lace machine
I cut away the standards at each end of the lace machine just about the centre
sufficient to allow of the vertical and horizontal movements of the frame and
strengthen the standards near such parts to equal the parts cut away I then place
my machinery and apparatus in such a position that a series of needles or other
instruments extending the whole width of the fabric made on the machine lies
above the bottom of the faceing bar and between it and the work beam.
The movements of the embroidering instruments I time to take place while the
bobbins and carriages of the twist lace machine are passing from one set of combs
to the opposite set of combs at each motion of the machine, such machinery and
apparatus I employ in addition to and above the jacquard usually employed to
move the bars of the twist lace machine. Thus I am enabled to embroider any
fabric either in the piece or as it is being made on the machine at a considerable
greater speed and at the same time greater facility is afforded in producing
extended patterns than has heretofore been attained.