Improved Apparatus for Adjusting the Tension of Threads Used in Making Lace or other Fabrics.
Year: 1889

page_text: Date of Application, 7th Mar., 1889
Complete Specification Left, 14th June, 1889-Accepted, 20th July, 1889
PROVISIONAL SPECIFICATION.
Improved Apparatus for Adjusting the Tension of Threads Used in
Making Lace or other Fabrics.
I WILLIAM BENSON 86 Robin Hood Street, Nottingham Engineer do hereby declare
the nature of this invention to be as follows:-
To each string, cord, or strap, having one end secured to a fixed stud, then passed
round the pulley or groove at one end of a thread carrying beam, bobbin, spool or
their equivalent, to provide frictional resistance as the thread or threads are pulled off
them in the usual way.
To the outer end I hook one end of a wire the other end of the wire is hooked to
the loop of a U shaped spring the ends of which rock in holes in the sides of a
square tube near one end, the tube contains a rod having a square head at one end
and is screw threaded from the other end for the greater portion of its length, an open
spiral spring of less diameter than the square tube, is placed upon the rod, the screwed
end is then passed through a hole in the centre of a square swiveled collar, from the
sides of which studs project which take into bearings formed in the sides of two
flat metal plates, near their front edge. Between these plates the requisite number
of square tubes are free to rise and fall, so that by screwing the nuts further on to the
rods the tension on the threads is increased by compressing the springs and by
unscrewing the nuts the tention is slackened.
Dated this Sixth day of March 1889.
H. W. GOUGH, C.E.,
Agent.
COMPLETE SPECIFICATION.
Improved Apparatus for Adjusting the Tension of Threads 'Used in
Making Lace or other Fabrics.
I, WILLIAM BENSON, 86 Robin Hood Street, Nottingham, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a side view of any improved apparatus as applied to the right end
of a number of beams at the back of a curtain machine.
Figure 2 shows a back view of two vertical plates at the right end of the machine
which support the swivelled tension tubes hereafter referred to.
Figure 3 shows an enlarged side view of the upper and lower portions of one pair
of vertical plates and some of the swivelled tubes.
Figure 4 shows a back view of portions of both pair of plates and tension tubes,
and the right and left ends of two rows of warp beams.
Figures 5 to 10 show the separate parts of one tension tube severally referred to
hereafter.
The corresponding parts in each Figure are indicated by the same letters where
necessary.
At Figure 1 my improved apparatus is shown behind the axle bearing frame
employed at the right end of a curtain machine, the frame A is shown as arranged to
support the axles at the right end of one hundred and sixty warp beams, the axies
at the left end being supported by a like frame at the back of the left end of the
machine.

page_text: The apparatus consists of the following parts,
At the back of the warp beam axle bearing frames A, two upright plates B, are
firmly bolted to the floor, the tops of the plates project outwards, to these projections
the ends of stay rods are secured, the other ends of the stays may be secured to the
curtain machine, or other machine to which the apparatus may be attached, or to a
wall or other firm support, the inner flat side of each plate B has a plate B¹ secured
to it, between the parallel sides of the plates a number of square tubes C swing
see Figures 5 to 10, the number varying according to the number of warp beams
employed.
Near the back edges of the parallel plates holes are drilled opposite to each other,
corresponding to the number of tubes required, into these holes are fitted the pivot
ends of swivel bearings D, each having a hole through the centro.
The square tubes are partly closed at the back end as shown at Figures 6 and 8,
each tube encloses a spiral compression spring E the back end of which rests upon a
washer F, see Figure 10), which lies within the partly closed end of the tube, the
front end of the spring rests upon the square head of a screw threaded rod G, the
head of the rod shown at Figures 7 and 9 fits the inside of the tube but is free to
slide within it.
The screw threaded rod after passing down the inside of the spring, through the
washer, and through the partly closed end of the tube, also passes through the swivel
bearing and is adjusted by a nut H resting on the outside of the bearing, each of the
square tubes is provided with a Ụ shaped wire I the ends of which rock in holes in
the sides of the tube, shown in plan and side view at Figures 5 and 6, on the loop
of the wire 1 one end of a wire K is hooked its other end being attached to a cord
passed round a pulley or groove at one end of a thread carrying beam and secured to a
fixed stud in the framing A, as shown at Figures 1 and 3 to provide frictional
resistance as the threads are pulled off the beam in the usual way.
Thus the pressure being always in a direct line, the tension on the threads may be
increased by screwing the nuts further on the rods and compressing the springs, or
slackened by unscrewing the nuts.
The edges of the vertical plates B' are stamped with the number of beams, spools,
or their equivalent to which each tube is attached, and the plates B have studs
projecting from them at each tenth tube to facilitate finding any number.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The construction and employment of improved apparatus for adjusting the tension
of threads used in making lace or other fabrics, substantially as described and
illustrated in the Drawings annexed.
Distal : 19:1 11000
H. W. GOUGH, C.E.,
Agent.