FORMING OR CONSTRUCTING FRINGES ON TEXTILE FABRICS, AND IN THE MACHINERY OR APPARATUS EMPLOYED THEREFOR
Year: 1870

page_text: PROVISIONAL SPECIFICATION left by John Collins at the Office
of the Commissioners of Patents, with his Petition, on the 17th
November 1870.
I, JOHN COLLINS, of Glasgow, in the County of Lanark, North
Britain, do hereby declare the nature of the said Invention for
"FORMING OR CONSTRUCTING FRINGES ON TEXTILE FABRICS, AND IN THE
MACHINERY OR APPARATUS EMPLOYED THEREFOR," to be as follows, that is
to say:
This Invention, which relates to certain arrangements of mechanism
to be employed for threading yarns or threads into textile fabrics so as
to constitute a fringe or fringes at the borders, edges, or other parts
thereof, consists, under the first modification, of a sole plate to which.
the moving parts of the mechanism are attached. At the upper part of
the sole plate a long horizontal or approximately horizontal arm is
situated, and at the extremity of which the needle bar and presser are
carried. On the under side of the sole plate a revolving shaft is carried
in suitable bearings and fitted with a driving pulley, over which the
belt for communicating motion to it passes. On this shaft a series of
cams are placed and which revolve with it. One of these cams drives

page_text: the bar in which one or more needles are carried at the extremity of the
arm herein-before referred to, the reciprocating motion being imparted
to it by a linkwork placed in the said arm (by preference) which is
cast hollow. A second cam actuates the lever by which the yarn is
pulled through the fabric so as to form the loops of fringe of the
required length. The lever now referred to being adjustable so as to
obtain various lengths of vibration corresponding to the different lengths
of loop or fringe. This lever has a hook at its upper end which enters
into the loop or loops of yarn brought down through the fabric by the
needle or needles at the upper side. A third cam on the revolving
shaft drives a toothed rack in gear with a pinion carrying a hook, which
is by the agency of the said rack and pinion rotated through a part or
the whole of a revolution and back again to its normal position during
each revolution of the cam shaft. The office of this hook is to catch
each loop of fringe as it is pulled through the fabric and draw it to one
side so as to pass the yarn of which it is constituted in between the
cutting edges of a pair of scissors or other cutters, such as revolving
discs or reciprocating knives. The scissors or other cutters cut each
loop through, leaving the ends of yarn separate from each other. The
fabric being fringed is drawn under the needle or needles feeding the
yarn at the requisite speed by means of a feed motion similar to what is
applied to some kinds of sewing machines, and a long slot or opening
in the sole plate is placed so as to allow the loops to be pulled down
through it as they are formed and for allowing them to pass on with the
fabric as it is fed after they are cut by the scissors or other cutters.
Under the second modification the fringing machine consists of a
C shaped frame carrying the lever which actuates the needle bar at one
side and which is put into motion by being coupled to an eccentric on
the driving shaft situated at the lower part of the frame. At the front
end of the driving shaft a crank is carried which is connected by a link
to a lever having at one end a slot for adjusting the distance of con-
nection from the centre on which the lever vibrates, this distance being
regulated so that the vibration of the other end of the lever which is
formed with a hook for drawing through the yarn shall correspond with
the length of loop or fringe required. As soon as each loop of yarn is
pulled to its full length by the hooked lever, it is taken off the hook
and passed in between the jaws of a clamp or holder by another lever
provided with a stud for pushing the loop aside, and which is released

page_text: at the proper time for allowing the traverse of the fabric through the
machine by means of the clamp or holder being released through the
action of a cam upon a lever to which the moveable jaw of the clamp
or holder is attached.
An arrangement of mechanism for cutting the loops of fringe similar
to what is referred to under the first modification may be used in con-
nection with the machine referred to under this second modification.
Lastly. It is to be understood that in both modifications, herein-before
described, the yarn or thread is led to the needle or needles from a pirn
or cop in place of from a reel or bobbin.