IMPROVEMENTS IN JACQUARDS USED WITH LACE MACHINES
Year: 1864

page_text: LETTERS PATENT to Joseph Oldknow, of the Town and County of the
Town of Nottingham, Machine Builder, and John Wood, of New Rad-
ford, in the County of Nottingham, Guide and Bar Manufacturer, for
T
T
"
PROVISIONAL SPECIFICATION left by the said Joseph Oldknow and
John Wood at the Office of the Commissioners of Patents, with their
Petition, on the 22nd February 1864.
We, JOSEPH OLDKNOW, of the Town and County of the Town of Notting-
ham, Machine Builder, and JOHN WOOD, of New Radford, in the County of
Nottingham, Guide and Bar Manufacturer, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN JACQUARDS USED WITH LACE MACHINES,"
to be as follows:-
According to the first part of our improvements we bevil the top edge of
the driving bars, and we attach boxes thereto, these boxes move with the
driving bars, heretofore the boxes have been separate from them. In these
attached boxes slide the usual droppers, below the driving bar we place a draw
bit or slide, one to each box. On the side of each draw bit we rivet or other-
wise secure two driving bits, which stand above the draw bits, the droppers
falling between such driving bits and the driving bars, while from one edge of
the driving bits projects a spring or plate placed there to receive any escaped
droppers. When a duminy dropper is required, we suspend it from any

page_text: convenient part of the jacquard in such manner that it shall not be acted upon
by the jack. Upon the side of the driving bits, next the draw bits or slides,
we file or otherwise remove a portion thereof, so that a bar capable of adjust-
ment may slide therein, the draw bits are supported by sleys; a spring is
attached to one end of the slide, and a bar at the other end.
According to the second part of our improvements we use fixed boxes, or in
lieu thereof we fix two pairs of plates securely to the standards or other parts
of the jacquard. In these plates.we cut saw gates, in which thin plates may
be slipped, such saw gates are at such distance from each other that when
the thin plates are slipped therein, each side of such plates will form one side
of a box or receptacle for the droppers, the droppers fall between the driving
bars. We attach to a slide, similar to the one described, two driving bits,
which also act as stays, and stand-up in the spaces between the plates in
which the droppers slide away from the driving bars, except when held up by
the jack. The adjustable slide is similar to 'the one above described. We
are-enabled-by-our-arrangements-to-pull-direct-from-the-centros_of_the_slides,
and to insert thirty per cent. (or more) additional slides to act upon bars
within the same space besides having less weight to move.
When we employ a dummy dropper, we suspend it as described in the first
part of our improvements.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Oldknow and John Wood in the Great Seal Patent
Office on the 22nd August 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
OLDKNOW, of the Town and County of the Town of Nottingham, Machine
Builder, and JOHN WOOD, of New Radford, in the County of Nottingham,
Guide and Bar Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second, day of February, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-seventh year
of Her reign, did, for Herself, Her heirs and successors, give, and grant.unto
us, the said Joseph Oldknow and John Wood, Her special licence that we,
the said Joseph Oldknow and John Wood, our executors, administrators, and
assigns, or such others as we, the said Joseph Oldknow and John Wood, our
executors, administrators, and assigns, should at any time agree with, and
no others, from time to time and at all times, thereafter during the term

page_text: therein expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN JACQUARDS USED
WITH LACE MACHINES," upon the condition (amongst others) that we, the said
Joseph Oldknow and John Wood, our executors or administrators, by an
instrument in writing under our or their hands and seals, or under the hand
and seal of one of us, or them, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the said Joseph Oldknow and John Wood, do
hereby declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement thereof, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to say:—
The first part of our improvements consists in bevelling the top edge of the
driving bars, and in attaching boxes thereto; these boxes move with the
driving bars, whereas heretofore the boxes had been separate from them.
In these attached boxes slide the usual droppers, and below the driving bar
we place a draw bit or slide one to each box. On the side of each draw bit
we rivet or otherwise secure two driving bits which stand above the draw
bits, the droppers falling between such driving bits, and the driving bars.
From one edge of the driving bits a spring or plate projects for the purpose
of receiving any escaped droppers. When a dummy dropper is required, wo
suspend it from any convenient part of the jacquard in such manner that it
shall not be acted upon by the jacquard top. From the side of the driving
bits, next the draw bits or slides, we file or otherwise remove a portion
thereof, so that a bar capable of adjustment may slide therein, the draw bits
are supported by sleys, a spring is attached to one end of the slide, and a bar
to the other end thereof in any of the ordinary methods by which they have
hitherto been attached.
The second part of our improvements consists in using fixed boxes, or in
lieu thereof we fix two pairs of plates securely to the standards or other parts
of the jacquard. In these plates we cut saw gates, in which thin plates are
slipped. These saw gates are cut at such distance from each other that when
thin plates are slipped in such gates, each side of such plates will form one
side of a box or receptacle for the droppers, the said droppers are the same
as those usually employed, and fall between the driving bars. To a similar

page_text: slide to that before described we attach, by rivetting or otherwise, two driving
bits, which also act as stays, and stand up in the spaces between the plates in
which the droppers slide away from the driving bars, except when they are
held up by the jack. The adjustable slide is similar to the one above
described. We are enabled by the above construction and arrangement of
parts to pull direct from the centres of the slides, with the farther advantage
also of being enabled to insert thirty per cent. or more additional slides than
heretofore to act upon bars within the same space, besides having much less
weight to move. When we employ dummy droppers wo suspend them as
described in the first part of our improvements.
Having thus set forth the nature of our Invention, we now proceed more
fully to describe the manner of performing the same, with reference to the
Drawings.
Figure 1. Sheet 1. represents a side view of a jacquard constructed according
to our improvements, having the usual top and one of the standards removed,
in order to shew the sleys and tie rods, and also the cam shaft in section.
Figure 2, Sheet 2, is a front view of the same, the several corresponding
parts in these and the other Figures are lettered alike; Figure 3, Sheet 2,
and Figure 4, Sheet 1, represent portions of the above shewn the full size.
A, A, is a pair of standards connected by tie rods B. On these standards
are bearings for a canı shaft C, which in this arrangement carries four cams
D, which said cams severally communicate motion to four driving levers D¹,
on the upper side of which are secured two driving blades E for a single tier
jacquard. On the inside of the standards we attach boxes, or in lieu thereof
we fix to the standards two pairs of plates F, in these plates we cut saw gates
in which thin plates G are slipped. These saw gates are cut at such distance
from each other that when thin plates G are slipped in such saw gates,
each side of such plates will form one side of a box or receptacle for the
droppers H, which droppers are the same as those usually employed, and fall
between the driving bars; I is a slide, of which there is one to each box or
receptacle, to each slide I we rivet or otherwise secure two driving bits K,
which act as stays, and stand up in the spaces between the plates in which
the droppers slide. From the side of the driving bits K, next the draw bits
or slides L, we file away or otherwise remove a portion thereof, so that the
draw bits or bars L, which are capable of adjustment by means of the screws
L', at or near one end may slide therein. The draw bits L are supported by
sleys M, and are prevented from rising by a cap N on their upper side. The
droppers E are tied by strings in the usual way to the wires of the jacquard
top. When dummy droppers H' are required, we suspend them from any

page_text: convenient part of the jacquard or framing thereof, in such manner that they
shall not be acted upon by the jacquard. To the opposite end of the draw
bits or slides L, and to the adjusting screws L', we attach the bars required
for the machine.
By the above arrangement we are enabled to pull direct from the centres
of the slides, and also to insert thirty per cent. or more of additional slides
than heretofore, to act upon bars within the same space, besides having much
less weight to move.
Figure 8, Sheet 2, represents in section a single tier according to our
improvements above described, shewing two boxes or receptacles with their
driving bits, slides, adjustable draw bits, and two driving bars.
Figure 2, Sheet 2, represents the end box or receptacle, four such boxes
constituting a double tier, the slides and draw bits in such case being much
longer than is shewn for a single tior; the adjusting screws for the draw bits
are arranged as shown; there are also two pairs of driving blados E secured
to the driving levers D', one such pair is secured to the inside levers, and the
other pair to the levers outside the standards, both pairs of levers being
lengthened to carry four driving blades E, and the standards A being made
proportionably wider to carry theni.
Having now described the nature of our said Invention, and in what
manner the same may be performed, we declare that we claim, the general
arrangement and combination of parts as herein-before described.
In witness whereof, we, the said Joseph Oldknow and John Wood,
have hereunto set our hands and seals, this Twentieth day of
August, in the year of our Lord One thousand eight hundred and
sixty-four.
Witness,
GEO. JON. ROBINSON,
Patent Office,
Nottingham.
JOSEPH OLDKNOW. (L.S.)
JOHN WOOD.
(L.S.)