IMPROVEMENTS IN JOINTS OR CONNECTIONS FOR CONNECTING 'JACKS' TO 'JACK EMPLOYED IN WEAVING." HOOKS
Year: 1877

page_text: «
LETTERS PATENT to Enoch Openshaw Taylor, of Marsden, near Huddersfield,
in the County of York, Engineer, for the Invention of IMPROVEMENTS IN
JOINTS OR CONNECTIONS FOR CONNECTING 'JACKS' TO 'JACK
EMPLOYED IN WEAVING."
HOOKS'
Sealed the 15th February 1878, and dated the 24th November 1877.
.
PROVISIONAL SPECIFICATION left by the said Enoch Openshaw Taylor at
the Office of the Commissioners of Patents on the 24th November 1877.
ENOCH OPENSHAW TAYLOR, of Marsden, near Huddersfield, in the County of
York, Engineer. "IMPROVEMENTS IN JOINTS OR CONNECTIONS FOR CONNECTING
JACKS' TO JACK HOOKS' EMPLOYED IN WEAVING."
In the use of jacquard lag, or such like pattern surface, to operate in apparatus
employed in weaving, for the production of variations in the weaving or the
working of the looms, there are used what are commonly called "jacks" and "jack
hooks," and they are ordinarily connected together by rivets or pins so that one
may have motion on the other, somewhat of the character of a hinge joint, but as
such parts are generally connected the pins are liable to become loose, and the parts
then become disconnected, and injury is done to the working. The object of my
Invention is to remedy this evil. For this purpose I form one of the parts to be
connected with a projecting stud and a projection or-overhanging portion or part
head to this stud, or two or more of such portions, and I form the other of such
parts to be connected therewith, with a hole through it, corresponding in diameter
to the diameter of the stud of the other, and this hole is enlarged at its outer
surface to admit of the working round therein, and within the thickness of the
metal of the part having such hole in it, of the overhanging portion of the stud.
This hole is also cut through at one part of its diameter to admit of the passage of

page_text: the overhanging portion of the stud above referred to, so that when the part with the
stud has been passed through the hole in the other part in relation, so that the
overhanging portion may pass the corresponding cutting away in the hole to the
other part to be connected, and one part is turned partly round upon the other, both
parts will be held securely somewhat as by what is commonly called a bayonet
catch, and yet so as to admit of a certain amount of turning one on the other as on
a hinge joint without separation. When two or more of such overhanging portions
are employed there would be corresponding enlargements to the hole in the other
part for the passage of one through the other, and these enlargements for the
passage of overhanging portions to the other will be formed in relations that will
prevent their separating in ordinary working.
The stud, with its horn or horns, may be cast with its part, or it may be
separately applied thereto, yet, in any case, these portions are formed so as not to
project beyond the thickness of the part connected thereby or to any material
extent, and the connection of both parts may be in the thickness of one of them,
and with increased strength and security of working.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Enoch Openshaw Taylor in the Great Seal Patent Office on the 22nd
May 1878.
ENOCH OPENSHAW TAYLOR, of Marsden, near Huddersfield, in the County of
York, Engineer. "IMPROVEMENTS IN JOINTS OR CONNECTIONS FOR CONNECTING
'JACKS' TO 'JACK HOOKS' EMPLOYED IN WEAVING."
In the use of jacquard, lag, or such like pattern surface, to operate in apparatus
employed in weaving for the production of variations in the weaving or the
working of the looms, there are used what are commonly called "jacks" and "jack
hooks," and they are ordinarily connected together by rivets or pins so that one
may have motion on the other somewhat of the character of a hinge joint, but as
such parts are generally connected the pins are liable to become loose, and the parts
then become disconnected, and injury is done to the working. The object of my
Invention is to remedy this evil. For this purpose I form one of the parts to be
connected with a projecting stud and a projection or overhanging portion or 'part
head to this stud, or two or more of such portions, and I form the other of such
parts to be connected therewith with a hole through it, corresponding in diameter
to the diameter of the stud of the other, and this hole is enlarged at its outer
surface to admit of the working round therein, and within the thickness of the
metal of the part having such hole in it, of the overhanging portion of the stud.
This hole is also cut through at one part of its diameter to admit of the passage of
the overhanging portion of the stud above referred to, so that when the part with
the stud has been passed through the hole in the other part, in relation so that the
overhanging portion may pass the corresponding cutting away in the hole to the other
part to be connected, and one part is turned partly round upon the other, both

page_text: parts will be held securely, somewhat as by what is commonly called a bayonet
catch, and yet so as to admit of a certain amount of turning, one on the other, as on
a hinge joint, without separation. When two or more of such overhanging portions
are employed there would be corresponding enlargements to the hole in the other
part for the passage of one through the other, and these enlargements for the
passage of overhanging portions to the other will be formed in relations that will
prevent their separating in ordinary working.
The stud, with its horn or horns, may be cast with its part, or it may be
separately applied thereto, yet, in any case, these portions are formed so as not to
project beyond the thickness of the part connected thereby, or to any material
extent, and the connection of both parts may be in the thickness of one of them
and with increased strength and security of working.
But that the Invention may be the better understood I will, by the aid of the
accompanying Drawings, proceed to describe an arrangement of parts I find to
answer tell in cornuing the come ints offent
Figure 1 shows portions of a jack and a jack hook with the joint thereof
arranged according to the Invention and drawn to a reduced scale.
Figure 2 shows parts together, full size; and Figures 3, 4, 5, 6, and 7, these parts
separately, in order to their peculiar construction being the better understood.
In each of the views the same letters are employed to indicate corresponding
parts.
a represents the side view of a jack, or portions thereof; and b, the jack sus-
pended thereto. Figure 3 shows, by a side view, the arrangement of that part of
the joint formed on the end of the jack u; and Figure 4 shows a sectional end view
of the same; whilst Figures 5 and 6 represent two opposite side views of the cor-
responding part of the joint formed at the upper end of the jack hook b; and
Figure 7, a sectional end view of such part. c represents the projecting stud formed
on or applied to the outer end of the part a; and c', c¹, c', are three projections or
horns or a part head formed on the outer end of the stud c. & represents a hole
formed through the upper end of the part b, in diameter corresponding with the
diameter of the stud c, so that one may freely turn in or on the other without
being loose; and d', d', d', are openings to the hole & to admit of the passage of the
projections or part head c², c¹, c'. The hole d is enlarged at its surface ², forming a
recess in the part c to admit of the projections c¹, cl, cl, on the pin c freely turning
partly round therein to hold the parts together in working, and it is also recessed
on the opposite side, at d³, to receive the thickness of the part al of the end of the
jack a; and the part a¹ of the end of the jack a is similarly recessed or reduced in
thickness, so that when the parts are together the thickness of the whole at such
joint may not necessarily increase the substance of the jack or its hook, or to any
material extent. By these means, whilst the "jack hook" may be readily attached
to or removed from its "jack," the parts are capable of freely moving one on or in
the other to the extent desired in working without separating one from the other.
I would remark that the portion of joint thus shown and described as formed
with the part a may be formed with or applied to the part b, and those shown as
formed with the part b may be formed with or applied to the part a, and in place
of there being three parts c' and corresponding openings d¹ for their passage there
may be only one of each, or there may be other corresponding number of each of
them.
Having thus described my Invention, and means which I adopt in carrying the
same into effect, I would have it understood that I do not confine myself to the
precise arrangement of parts shewn and described, as the same may be varied
without departing from the peculiar character of the Invention, but what I do claim
is the improvements in joints or connections for connecting "jacks" to "jack hooks,"

page_text: employed in weaving, by forming them with the parts c, c¹, d, d¹, and parts con-
nected therewith, as described.
In witness whereof, I, the said Enoch Openshaw Taylor, have hereunto set
my hand and seal, this Twentieth day of May, in the year of our Lord One
thousand eight hundred and seventy-eight.
E. O. TAYLOR. (L.S.)