Improvements in Jacquards.
Year: 1890

page_text: Date of Application, 17th June, 1890
Complete Specification Left, 14th Apr., 1891-Accepted, 16th May, 189
PROVISIONAL SPECIFICATION.
Improvements in Jacquards.
HENRY WALTER RICE Lace Manufacturer Player Street Nottingham
SAMUEL CHARLESWORTH SMITH Mechanic 382 Alfreton Road Nottingham
do hereby declare the nature of this invention to be as follows:-
This invention is for the purpose of attaining higher speed, which it is intended
to accomplish by an improved method of turning the cylinder over by applying
moveable or traverseing clawkers with moveable or traverseing cylinder reverseing
tackle.
Dated this 16th dow of Tune 1800
Figure 1 shows a left side view of a slide, two movable clawkers, connecting
link, rocking lever and operating link, arranged according to the first modification
of our improvements.
Figure 2 shows a plan of the same parts, with the left standard and cylinder
frame rod of a jacquard in their relative positions.
Figure 3 shows a left side view of a jacquard in combination with the parts
above described.
Figure 4 a side view of a single clawker, rocking lever and operating link,
arranged according to the second modification of our improvements.
In carrying out our improvements we employ two modifications, in the first
"shown at Figures 1. 2 and 3" a slide A is held to the side of the left standard of
a jacquard by two bearings a a, the underside of the foot of each bearing being
recessed to allow free to and fro movements being given to the slide.
In the bearings a a see Figure 3 a rod b, slides; its back end being secured to
the left end of a frame c in which the axle of a cylinder d turns in the usual way,
the right end of the cylinder frame is secured to a similar rod which slides in
bearings a secured to the right standard of the jacquard, each of the rods bis
provided with a boss having an axle carrying the back end of a link hinged at
its front end to a lever 3 secured on a shaft . Between the standards of the
jacquards the shaft is provided with a slotted arm connected in the usual way
to the upper end of a link "not shown in the drawings" actuated by an excentric

page_text: or cam carried by a driving shaft of the machine to which the jacquard is applied
by which the to and fro movements of the cylinder are effected.
The vertical needle lifting grid e at each end carries an axle pin which engages
with the upper end of a link e having its lower end hinged to a lever e² secured
on a shaft e provided with a slotted arm operated by a second excentric or cam
on the driving shaft before named, each revolution of the excentric or cam causing
the gride and string sley f to rise and fall in the usual way.
The vertical needles lifted by the grid, and the horizontal needles selected by
the cards on the cylinder, being of the usual construction are omitted in the
drawing. The slide A carries two axle pins which engage with the front ends of
an upper clawker A and a lower reversing clawker A2 "the latter is shown at
Figures 1 and 3 held out of action by the usual reversing tumbler g," in front of
the upper axle the slide carries a third axle on which the back end of a link B rocks,
its front end being carried by an axle secured in the upper end of a lever C rocking
upon an axle secured in an arm C¹ attached to the standard of the jacquard. The
lower end of the lever C is provided with an axle which carries the front end of a
link D its back end being carried by an axle secured in a bracket D' projecting
from the front of the lower left end of the cylinder bearing frame c.
The movements of the several parts operating in combination with the jacquard
are as follows:
с
Each time the shaft 6 is rocked to move the frame c and cylinder d towards the
front, the link D rocks the lever C to traverse the slide A towards the cylinder
carrying the clawkers A¹ A' with it until the hook end of the upper clawker falls
to engage with one of the corner pins of the cylinder, then the outward movement
of the frame and cylinder combined with the reverse traverse of the slide and
clawker will cause the cylinder to be turned over one quarter of a revolution.
At each turn over the cylinder is held square in the position shown at Figure 3
by the spring on the holding down lever h in the usual way.
In the second modification when the cylinder has to be turned over continuously
one way only we dispense with the slide A, the link B and the reversing clawker A²
retaining the rocking lever C the axle and arm C¹, the link D and bracket D' as
described in the first modification, and make the front end of the clawker A' of
sufficient length to rock upon the axle in the upper end of the lever C. as shown
at Figure 4.
The combined movements of the clawker A' and cylinder d being the same as
described in the second modification.
At Figures 1 and 3 the clawker A' is shown as arranged to turn the cylinder
over from left to right, but if the cylinder requires to be turned over from right to
left continuously without being reversed, the lower clawker is made of sufficient
length to rock upon the axle in the lower end of the lever C, the front end of the
link D being carried by the axle in the upper end of the lever C and the back
end of the link being carried by an axle secured in a bracket D' projecting from
the front of the cylinder bearing frame c above the cylinder.
In either modification by traversing the clawker or clawkers, the to and fro
movements of the cylinder are shortened about one half thus enabling a greater
speed to be attained when working double action.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. In combination with the traversing cylinder of a jacquard, the construction and
employment of a slide A carrying two clawkers A¹ A² traversed by a link B
and lever C rocked by a link D substantially as described in the first modification
and illustrated in the drawings annexed.
2. In combination with the traversing cylinder of a jacquard, the construction
and employment of a clawker A' traversed by a rocking lever C operated by a

page_text: link D substantially as described in the second modification and illustrated in the
drawings annexed.
Dated this Thirteenth day of April 1891.
Witness,
H. W. GOUGH, C.E.,
Nottingham.
HENRY WALTER RICE.
SAMUEL CHARLESWORTH SMITH.