IMPROVEMENTS IN MACHINERY AND APPARATUS APPLICABLE TO TWIST LACE MACHINES.
Year: 1874

page_text: LETTERS PATENT to George John Newton, of Old Radford, in the
County of Nottingham, for the Invention of "IMPROVEMENTS IN
MACHINERY AND APPARATUS APPLICABLE TO TWIST LACE MACHINES.'
33
PROVISIONAL SPECIFICATION left by the said George John Newton
at the Office of the Commissioners of Patents, with his Petition,
on the 27th November 1874.
I, GEORGE JOHN NEWTON, of Old Radford, in the County of Notting-
ham, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY AND APPARATUS APPLICABLE TO TWIST LACE MACHINES," to
be as follows :—
I propose to dispense with the bracket bars and brackets which carry
the perforated steel top bars, and instead of such bars and brackets I
substitute two horizontal bars lying parallel to each other. These bars
lic in spaces formed for them when required under the back and front
comb bars. The said horizontal bars are supported at or near each end,
and intermediately where required. Both bars have slots or perforations

page_text: formed in them, which correspond in number and position with the
slots in the perforated steel top bars. Through the slots or perforations
in the whole of the bars I pass loose pins, which pins are secured in the
horizontal bars by a head and nut on either end of each pin or other
suitable fastening.
The horizontal bars first named I open out, so as to give the slotted
and perforated steel top bars more room while they are being operated
upon by the jacquard. The horizontal bars are then closed upon and
compress the slotted or perforated steel top bars together while the car-
riages and bobbins pass from one comb to the other. Both the back
and front comb bars and combs are opened out at the same time as the
slotted or perforated bars, such opening and closing movements I effect
by means of cams and levers.
By machinery and apparatus constructed as above described I am
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George John Newton in the Great Seal Patent
Office on the 24th May 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
JOHN NEWTON, of Old Radford, in the County of Nottingham, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of November, in the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said George John Newton,
Her special licence that I, the said George John Newton, my
executors, administrators, and assigns, or such others as I, the said
George John Newton, my 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 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 MACHINERY AND APPARATUS APPLICABLE TO
TWIST LACE MACHINES," upon the condition (amongst others) that I, the

page_text: said George John Newton, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, 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 I, the said George John Newton, 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, reference being had to the accompanying
Drawings forming a part of this Specification:-
I propose to dispense with the bracket bars and brackets which carry
the perforated steel top bars, and instead of such bars and brackets I
substitute two horizontal bars lying parallel to each other. These bars
lic in spaces formed for them when required under the back and front
comb bars. The said horizontal bars are supported at or near each end,
and intermediately where required. Both bars have slots or perforations
formed in them, which correspond in number and position with the slots
in the perforated steel top bars. Through the slots or perforations in
the whole of the bars I pass loose pins, which pins are secured in tho
horizontal bars by a head and nut on either end of each pin, or other
suitable fastening.
The horizontal bars first named I open out, so as to give the slotted
and perforated steel top bars more room while they are being operated
upon by the jacquard. The horizontal bars are then closed upon, and.
compress the slotted or perforated steel top bars together while the car-
riages and bobbins pass from onc comb to the other. Both the back
and front comb bars and combs are opened out at the same time as the
slotted or perforated bars, such opening and closing movements I effect
by means of cams and levers.
By machinery and apparatus constructed as above described I am.
enabled to employ a greater number of ton bars than heretofore.
by means of cams and levers.
By machinery and apparatus constructed as above described I am.
enabled to employ a greater number of top bars than heretofore.
nsonIDOIAN An HD DD Å WINGS

page_text: side view of the cams and levers for operating the apparatus; and
Figures 3 to 7 are views of parts of the apparatus shown separately,
severally referred to hereafter. At Figure 1 the inside of a twist lace
machine of the usual construction is seen in section, but the point bars
and catch bars are not shewn.
A is the work roller; B, the work bar; C, the carriage, lying in the
front and back combs, which are secured to the comb bars D. Between
these bars I place two horizontal bars E lying parallel to each other.
These bars are about the same length as the width of the machine, and
are supported at or near each end by T shaped levers E', and interme-
diately where required by other lovers E. The end levers are free to
rock upon axles secured in the horizontal cross bars next the end
standards, the intermediate levers rocking upon axles secured in the
lower web of one or more saddles F, according to the width of tho
machine, the upper portion of each saddle forming the circle upon which
the bearing trucks of the front and back comb bars and landing bars H
run. The bars E are recessed to receive brass, wrought-iron, or other
metal brackets G, the lower arm of cach bracket being slotted to admit
of its adjustment upon the lower edge of the bar E, to which it is held
by a screw. Both comb bars have as many slots near their upper edge
as there are recesses in the bars E, the length of both slots and recesses
being equal. A front view of the right end of the back bar E and back
comb bar D is shewn at Figure 5 with one of the brackets G in the centre
of the length of the recess and slot. The end of one of the supporting
levers E¹ is also seen in the same Figure. A front view of the right end
of the front comb bar without the comb leads, but with one of the slots,
is shewn at Figure 6.
The recesses and slots correspond in number and position with the
slots in the perforated steel top bars. Portion of one such bar partly
perforated, and having one slot, is shewn at Figure 7. Through the
corresponding slots in the whole of the perforated bars employed, and
through the holes in the upper arms of each pair of brackets, I pass
loose pins G', each such pin being secured by a head and nut on either
end, or by a cotter pin or other suitable fastening.
The bars E are opened out by springs attached to the supporting
levers, and to any convenient part of the machine. This opening out of
the bars E is for the purpose of giving more room to tho perforated steel

page_text: top bars while they are being operated upon by the jacquard. The
bars E are then closed upon and compress the slotted and perforated
steel top bars together while the carriages and bobbins pass from one
comb to the other.
Both the back and front comb bars and combs are opened and closed
at the same time by levers operated by cams, and shewn in side view
at Figure 2, arranged as follows:-There is a spindle bar I carried by
suitable bearings secured to brackets attached to one of the back tic
bars. The spindle bar carries two or more levers K on its upper front
side, and two or more levers L on its lower front side. The levers K
are connected by curved links to the under side of the back comb bar.
The links are curved, so as to miss the landing bar H. The levers L.
are connected by straight or curved links to the under side of the front
comb bar. The levers K are likewise connected by a link K' to a double-
ended truck bearing lever K³, which rocks upon an axle secured to the
back of the top tie bar. The upper truck bears upon a cam K³, shewn
in side view at Figure 3, the counter cam K* bearing upon the lower
truck, being shewn in side view at Figure 4. The cams are secured upon
the usual cam shaft M when the construction of the machine will
allow it.
For the purpose of preventing any endwise movement of the front
comb bar I secure at each end a short bracket D¹ adjustable endwise by
a set screw, scen at Figure 5, which when secured slide upon friction
plates of steel D secured to the standards or other convenient part of
the framing of the machine.
By machinery and apparatus constructed and operating as above
described I am enabled to employ a greater number of top bars than
heretofore, and also lessen the liability to wrong gate; and by dispensing
with the bracket bars and brackets usually employed to support the
perforated steel top bars in the machine more space is afforded the work-
man for operating upon the threads, there being no obstruction below
the bars from end to end of the combs. And when it is required to
bring out the front comb bar to enable the workman to put the threads
up, and gate the perforated bars to the carriages, I employ straight or
curved links in halves slotted and bolted together, as shewn in side view
at Figure 2, a spring above each taking into notches in the links. Under
these springs a rod slides in bearings carried by the comb bar; the rod is
provided with wedges which lift the springs clear of the notches when

page_text: moved to the right to allow the front comb bar to be brought out when
required.
Having now described the nature of the said Invention, and the
manner of performing the same, I declare that I claim, the use or
employment of horizontal parallel bars to be either fixed or moveable,
and carrying pins for supporting the perforated steel top bars, as above
described, and when such parallel bars are made moveable I claim, the
combination of machinery and apparatus for operating the said
parallel bars, as also described above, and illustrated in the Drawings
annexed.
Witness,
H. W. GOUGH, C.E.,
Nottingham.
GEORGE JOHN NEWTON. (L.S.)