IMPROVEMENTS IN MANUFACTURING KNITTED FABRICS
Year: 1855

page_text: PROVISIONAL SPECIFICATION left by the said Benjamin Bailey at the
Office of the Commissioners of Patents, with his Petition, on the 24th
July 1855.
I, BENJAMIN BAILEY, of Leicester, Machine Maker, do hereby declare the
nature of the Invention for "IMPROVEMENTS IN MANUFACTURING KNITTED
FABRICS" to be as follows:-
In the Specification of a former Patent granted to me I described improve-
ments in machinery for manufacturing knitted fabrics, which consisted of
combining parts of machinery known as Derby-rib machinery with knitting
frames, whereby the Derby-rib machinery as well as the knitting frame was
caused to be worked by a rotatory motion, and whereby one presser bar was so
moved or actuated as to press on the beards both of the frame needles and the
machine needles. Now, my present improvements consist of employing two
fixed or stationary presser bars, one for the frame needles and one for the
machine needles, the two sets of needles being respectively moved to bring
the beards of their needles against their respective stationary or fixed presser
bars. By these means the mechanisın formerly used to actuate the presser bar
is dispensed with, and the speed of the machine increased.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Benjamin Bailey in the Great Seal Patent Office on the
24th January 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BENJAMIN
BAILEY, of Leicester, Machine Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of July, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Benjamin Bailey, Her special licence that I, the said Benjamin Bailey.
my executors, administrators, and assigns, or such others as I, the said
Benjamin Bailey, 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
MANUFACTURING KNITTED FABRICS," upon the condition (amongst others) that
I, the said Benjamin Bailey, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should parti-
cularly 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 Benjamin Bailey, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
In the Specification of a former Patent granted to me I described improve-
ments in machinery for manufacturing knitted fabrics, which consisted of
combining parts of machinery known as Derby-rib machinery with knitting
frames, whereby the Derby-rib machinery as well as the knitting frame was
caused-to-be-worked-by-a-rotatory-motion, and whereby one presser bas was so
moved or actuated as to press on the beards both of the frame needles and the
machine needles. Now, my present improvements consist of employing two
fixed or stationary presser bars, one for the frame needles and one for the
machine needles, the two sets of needles being respectively moved to bring
the beards of their needles against their respective stationary or fixed presser

page_text: Figure 1 shows a transverse section of a machine constructed according to
my Invention; Figure 2 shows a section of some of the parts drawn full size;
and Figures 3 and 4 show the parts in other positions, the nature of which is
written thereon.
The construction and working of this machine (so far as regards the knitting
frame with needle bar a) being like that described in the Specification of a
Patent granted to me on the Twenty-third day of May, One thousand eight
hundred and fifty-one, it will not be necessary to repeat the description of those
parts again here; they are, however, marked with the same letters of reference,
so that they may be readily distinguished on referring to my said former
Specification from those parts which constitute my present improvements, and
by the application of which improvements the knitting frame there described is
caused so to work that two sets of needles are respectively moved to bring the
beards of the needles against two stationary or fixed presser bars, in place of
employing a moveable presser bar to press each set of needles in succession, as
was described by me in the Specification of a Patent hereafter mentioned.
A is the machine needle bar, which receives an up and down and a to and
fro motion in the following manner:-A' is a cam (of which there are several
according to the width of the machine) fixed on the cam shaft or axis f. which
acts on a truck or roller carried by the lever arm A, fixed on the spindle bar
A3; the lever arm A is connected by a pin joint to the arm A, fixed on the
machine needle bar A, by which an up and down movement is given thereto.
B is a cam, fixed on the cam shaft f, which acts on a truck or roller carried by
the lever arm B', which is supported and moves on a pin joint formed on the
bracket B, affixed to the framing of the machine. The lever arm B' is con-
nected by a link B to the arm A, by which a to and fro movement is given
to the machine needle bar A. C is one of several cams fixed on the cam
shaft f, which act on trucks or rollers carried by the lever arms C, fixed on
the spindle bar C; the lever arins C¹ are connected by a bar C, on which
there are projections and set screws C, which act on projections C³, fixed on
the slide C, by which the work is knocked over the heads of the machine
needles. D is the fixed or stationary presser bar, against which the beards of

page_text: the machine needles are pressed; and is the fixed and stationary presser bar,
against which the beards of the frame needles are pressed, the two sets of
needles being moved to their respective fixed or stationary presser bars in place
of employing one moveable presser bar to press each set of needles in succes-
sion, as was described in the Specification of a Patent granted to me on the
Sixth day of August, One thousand eight hundred and forty-seven.
In witness whereof, I, the said Benjamin Bailey, have hereunto set my
hand and seal, this Twenty-fourth day of January, in the year of our
Lord One thousand eight hundred and fifty-six.
Witness,
J. G. TONGUE.
BENJAMIN BAILEY. (L.S.)