IMPROVEMENTS IN JACQUARD FRAMES, IN THE SLIDES OR BARS AND GUAGING BITS TO ENABLE A GREATER NUMBER OF SPRING DROPPERS TO BE USED IN THE WIDTH WITHOUT INCREASING THE NUMBER OF CYLINDERS, AND FOR IMPROVEMENTS IN THE CONSTRUCTION OF THE FRAME GENERALLY.
Year: 1877

page_text: COMPLETE SPECIFICATION filed by William Benson and Henry Hickton
at the Office of the Commissioners of Patents on the 6th January 1877.
WILLIAM BENSON, of Robin Hood St., of the Town and County of the
Town of Nottingham, Engineer, and HENRY HICKTON, of Long Eaton, in the
County of Derby, Lacemaker. "IMPROVEMENTS IN JACQUARD FRAMES, IN THE
SLIDES OR BARS AND GUAGING BITS TO ENABLE A GREATER NUMBER OF SPRING
DROPPERS TO BE USED IN THE WIDTH WITHOUT INCREASING THE NUMBER OF
CYLINDERS, AND FOR IMPROVEMENTS IN THE CONSTRUCTION OF THE FRAME
GENERALLY.
"
Our Invention relates to those machines that are attached to machines for making
lace and other fabrics, and known as jacquards, consisting―
Firstly. In the method of arrangement and construction of thin bars of metal
known as slides or boxes, whereby a greater number of spring droppers may be used
in the width without increasing the number of cylinders.
Secondly. In improvements in the construction of the frame generally, as sub-
sequently described and illustrated.
For the first part of our Invention each slide or box is attached to two
projections, each alternate slide or box having the projections on opposite sides,
which may be distinguished by stating that the slides or boxes are right and
left handed, the projections on the right-hand slide or box being placed between
the projections on the left-hand slide or box, so that they form four points,
from which the slides or boxes may be driven. The slides or boxes are also
made alternately long and short, the long ones being partially cut away to
allow of passing under the gauging bits of the short ones. The gauging bits
consist of a screw working in a fixed bearing and connected to a sliding nut,
and are attached to the end of each of the long and short slides or boxes.
The bars to be operated upon are attached to the sliding nuts, which are
adjustable, by means of a wrench fitting on the square end of the screw; by
this arrangement the work is nearly in a line with the centre of the slides or boxes,
thereby insuring a direct action.
The perforated metal plates forming a guide for the droppers (called sleys) and
also the perforated cylinder in which the end of the droppers work are of the
ordinary description, but of greater width, to allow of a greater number of droppers
being used, which droppers are divided into two sets over each cylinder, one set
taking a curved or anglar position to the right band, the other set a curved or
angular position to the left hand.

page_text: The driving plate for giving motion to the slides or boxes are made double, each
one having two driving faces. These driving plates (which may be made either
double or single) have recesses at the back of the driving faces to allow of the pro-
jections on the slides or boxes going underneath.
In the second part of our Invention for improvements in the frame generally we
employ two slides moving on each side of a dividing plate or web on each standard.
The supports or guides to the slides, which are of an angular shape and screwed to
the top and sides of each standard, provides substantial guides, economises space, and
gives a ready means of taking up the wear.
The bracket or frame for carrying the sleys for slides, or boxes, and bars,
is cast in one piece, forming a stay to the top of the standards to which it is
attached, enabling the whole of the slides or boxes to be fitted, fixed, or removed
together.
The brackets for carrying the dropper guides or sleys are attached to the under
side of the slides that give motion to driving plates; they also form the bearing or
guide for the spindles, two of which form part of the racking-on motion, the other
four forming the bearings for the two cylinders. A projection is cast to one bracket
to carry a lever to which the rack is attached for giving rotary motion to the
cylinder. We prefer to cast each pair of brackets together by a frame to which the
perforated plates or sleys may be fastened.
The bearings for the rocking shaft (to which are attached the levers giving
vertical motion to the cylinders) are cast in one piece, and forms the bottom stay to
the standards.
The four spindles which form the bearings for the cylinders has an elongation to
which the levers that give vertical motion to the cylinders are connected; two of
these spindes are made with a projection on each side to which the studs to carry
the springs for the racking-on motion are fastened; by this means the line of action
is more direct.
The lever to which the rack is attached that gives the rotary motion to the
cylinder is of the ordinary kind, but connected by a link at the top end, one end of
which link is secured by a stud to the standards; by this arrangement the lever is
quiet in working and positive in action.
Upon the main shaft is fastened four cambs that give motion to the slides to
which the driving plates are attached; an eccentric is also on the same shaft,
actuating the rocking shaft that works the cylinders.
The machine is driven in the ordinary way by gearing on the main shaft.
And in order that our Invention may be fully understood we shall now proceed
more particularly to descride the same, and for that purpose shall refer to the
several Figures on the annexed Sheets of Drawings, the same letters of reference
indicating corresponding parts in all corresponding Figures.
Figure 1 of our Drawings is an end elevation of a jacquard machine having our
improved mechanism for enabling a greater number of spring droppers to be used
in the width without increasing the number of cylinders, and improvements in the
frame generally; Figures 2 and 3 are side elevations of the same; Figure 4 is a plan.
Figures 8 and 9 show the arrangement for working the cylinders.
Figures 10 and 11 the improved slides for working the driving plates.
Figure 12, side view of camb.
Figure 13 shows bracket or frame at top of machine to which are attached top
sleys.
Figures 5, 5a, 56, 5c, marked m, are the driving plates.
Figures 6, 6a, are the long slides or boxes.
Figures 7, 7a, are the short slides or boxes.
In Figures 6, 6a, 7, 7a, are the slides or boxes which go the width of the sleys;
F, F, are the right and left handed projections forming the four points from which
they may be driven; Figures 6, 6a, are the long slides or boxes; Fig. 7, 7a, are the
short ones; G, G, are the gauging bits, consisting of a screw working in a fixed
bearing and attached to a sliding nut.

page_text: In Figures 9, 4, 3, h, h, are the perforated metal plates (called sleys); Y, Y,
Figure 1 and 3 are spring droppers.
In Figures 2, 3, 4, 5, m, m, are the double driving plates for giving motion to
the slides or boxes; Figures 5b, 5c, show the recesses at the back of the driving
faces.
In Figures 2, 3, 4, 10, 11, m, n, are the slides under the improved arrangement
with a dividing web between; 1, 1, 111, 111, are the supports or guides of an angular
shape; o, o, are the trucks working on axles attached to studs n, n;_y, y, are the
cambs which act upon the trucks o, o, and kept in contact by springs K, K.
In Figure 1, 9, h, r, h, r, are the two brackets carrying the spindles for racking-on
motion as well as the spindle which forms the bearings for cylinders, and to which
the perforated metal plates h, h, called dropper guides or sleys are attached.
In Figure 13, H, H, is the bracket or frame carrying sleys for slides or boxes, and
bars, and which forms the stay to top of standards; 2, 2, are the sleys for slides or
boxes and bars which are fastened to bracket or frame H, H.
In Figure 8, 9, we show a detailed front and side elevation of the bracket for
carrying the spindles and dropper guides or sleys, and our arrangement of the
racking-on motion; a, a, is the shaft passing through cylinder h; a₁, a₁, is the cog
wheel actuated by rack c, which we for one cylinder connect to lever CI, lever
being connected by link v, that is, connected to the standard by a stud.
CL
In Figure 1, 2, A, A, are the standards; L is the bracket carrying rocking shaft
and lever, and forms the bottom stay to the standards; N are the spindles forming
the bearings for cylinders with elongations, two of which have projections to carry
studs for springs i, i; M are the two spindles forming part of the racking-on motion
9, 9, are the links for connecting racking-on motion levers c, to spindles for giving
vertical motion to the cylinders.
Having now described the nature of our said Invention, and the manner in which.
the same is or may be used or carried into effect, we would observe that we do not
confine ourselves to the exact shape or configuration of the several parts described
and illustrated, as these may be varied, but what we consider to be novel and
original, and therefore claim as the Invention secured to us by the herein-before
in part recited Letters Patent is,—
Firstly. The method of arranging the slides or boxes with the gauging bits to
enable a greater number of spring droppers to be used in the width without in-
creasing the number of cylinders.
Secondly. The arrangement of the frame generally, comprising, firstly, arrange-
ment of bracket for carrying the sleys for slides or boxes and bars; secondly,
arrangement of double set of droppers working to one cylinder, as shown; thirdly,
arrangement of double driving plates as shown in Sheet 5, Figures 5, 5α, 5b, 5c,
marked m; fourthly, arrangement of brackets carrying dropper guides or sleys, as
described and identified by letter h, r, in the Drawings; fifthly, arrangement for
racking-on motion lever with motion for working the same, having a stationary con-
nection, as shown in Figure 8.
In witness whereof, we, the said William Benson and Henry Hickton, have
to this our Specification set our hands and seals, this First day of
January, in the year of our Lord One thousand eight hundred and seventy-
0 Witness to the signatures of
the said William Benson.
and Henry Hickton,
5
G. E. WEBSTER, C.E.,
Central Chambers,
Market Street,
Nottingham.
WILLIAM BENSON. (L.S.)
HENRY HICKTON.
(L.S.)