Year: 1898

page_text: I, JOHN POYSER, of Bolehill, Wirksworth, near Derby, in the County of Derby,
Engineer, do hereby declare the nature of this invention to be as follows:-
:―
This invention relates to battens for weaving looms and to means for operating
the same and more particularly to battens having oscillating upper and lower
parts of the kind described in the Specification of former Letters Patent granted
to me No. 144 of 1895.
In the arrangement of batten described in the said former specification a spring
is employed for holding the upper part of the batten back or away from the fell
of the fabric except when the said upper part is carried forward by the stroke:
of the lower part.
The object of this invention is to dispense with this spring and thereby obviate
the strain and vibration caused by the action of the said spring when the loom is
working at a high rate of speed, and to this end I provide for operating the upper
part of the batten positively in both directions by means of an oscillating or
revolving cam or cams.
In carrying out my invention I advantageously employ the following arrange-
ment that is to say, in or in connection with the two parts of the batten I form
or arrange two slots and provide a movable connecting piece or block extending
into the said slots, which latter are so shaped that when say the lower part of the
batten is operated in the manner described in the specification before referred to
the slot therein will act as a cam to move the connecting piece which will in
its turn act in the slot or cam in the other part of the batten and. move it in
the desired manner. Or I may actuate the upper part of the batten by means
of a separate cam, independently of the lower part.
Date 1
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.

page_text: the same is to be performed to be particularly described and ascertained in and
by the following statement:-
This invention relates to battens for weaving looms and to means for operating
the same and more particularly to battens having oscillating upper and lower
parts of the kind described in the Specification of former Letters Patent granted
to me No. 144 of 1895.
"
In the arrangement of batten described in the said former specification a spring
is employed for holding the upper part of the batten back or away from the fell
of the fabric except when the said upper part is carried forward by the stroke
of the lower part.
The object of this invention is to dispense with this spring and thereby obviate
the strain and vibration caused by the action of the said spring when the loom is
working at a high rate of speed, and to this end I provide for operating the two
parts of the batten positively in both directions by means of oscillating or
revolving cams. Or I may use a single cam which operates,one part of the batten
the other part being operated through the medium of a movable connecting piece
or block having rollers which extend into slots formed in the two parts of the
batten, which slots are so shaped that when say the lower part of the batten is
operated by the cam the slot therein will move the connecting piece which will
in its turn act in the slot in the other part of the batten and move it in the desired
manner.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings in which:-
-
Figure 1 is a longitudinal section of part of a loom of the kind described in
the specification before referred to and having the two parts of the batten driven
by independent cams; and,
Figure 2 is a section on the line 2-2 of Figure 1 looking in the direction of
the arrow in the said figure.
Figure 3 is a sectional view of a portion of the mechanism detached:
Figure 4 is a rear elevation drawn to a larger scale than Figures 1 to 3 illus-
trating the arrangement wherein only one part of the batten is driven by a cam
the other part being operated through the medium of a connecting piece:
Figure 5 is a side elevation of the same:
Figure 6 is a view similar to Figure 4 but shewing the parts in a different
position:
Figures 7 and 8 are side views of the upper and lower parts respectively of
the batten detached.
Similar letters of reference indicate corresponding parts throughout the
drawings.
a is the lower part of the batten which is fixed to the shaft b, Figures 1 and 2,
and oscillated from the cam c through the medium of the arm cfixed to the
shaft b and the rod d, in the manner described in the specification before referred
to, and e is the upper part of the batten which is loosely mounted upon the shaft b
and formed with an arm f as clearly shewn in Figure 3 to which is connected
one end of a rod g the other end of which is acted upon by a cam i on the main
driving shaft.
It will be noticed by reference to Figure 2 that the cams c, 7 are in the form
of grooves in which rollers j, j near the lower ends of the rods d, g run, the
Jower ends of the rods being bifurcated so as to embrace the driving shaft which
thus forms a guide for the lower ends of the said rods. The cam grooves c and i
must be of such shape and arranged in such relation to each other that the cam c
will move forward the lower part of the batten until its dents coincide with those
of the upper part which in the meantime has remained at rest, that the two parts
of the batten will then move together from this position to beat up the weft
laid in front of the batten and then return, the upper part o first coming to rest
and the lower part being then moved further back to open the batten to allow
the passage of the weft finger of the shuttle for laying another weft and so on.

page_text: In Figures 4 to 8, which illustrate the arrangement wherein one part of the
batten is positively driven from the other part through the medium of a con-
necting piece, k, I are the slots formed in the parts a and e of the batten respect-
ively and m is the connecting piece which is in the form of a lever or arm
pivoted to some suitable part of the frame of the machine and having at its free
end a pin n carrying two anti-friction rollers 0, 2 in the slots k, 1 respectively.
These slots are of the same shape except that the slot k has an extension ¹ which
is concentric with the axis of the shaft b. The slot and the part of the slot k
of similar shape coincide with one another when the two parts of the batten are
closed together, as shewn in Figure 5, so that when motion is imparted to the
batten part a in a backward direction, that is to say, in the direction of the
arrow Figure 5 the pin n being acted upon by the slot acts in turn upon
the slot and causes the part e of the batten to move with the part a until the
roller preaches the upper end of the slot when the motion of the batten part e
stops. As, however, by this time the extension slot in the batten part a is
opposite the roller o the motion of the said batten part a can continue its move-
ment in order to form the opening between the two parts of the batten as shewn
in Figure 6. During the forward movement of the batten part a the movements
are reversed, that is to say, the batten part a first moves independently and then
the two parts move together.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A batten for looms the two parts of which are mounted upon the same axis
and both parts of which are positively operated to close them together, beat up
the weft and again open them, substantially as described.
2. In a batten of the kind referred to the two parts of which are positively
operated, the arrangement of two cams for directly operating the two parts of
the batten the said two cams being arranged in such relation to each other
that one part of the batten remains at rest until the other part moves up to it,
that both parts then move together to beat up the weft and then again
move back one part coming to rest before the other which continues to move
back to separate the two parts of the batten, substantially as described.
3. In a batten of the kind referred to the two parts of which are positively
operated, the employment of a cam for transmitting motion to one part of the
said batten and a connecting piece working in slots in the said two parts of
the batten and serving to transmit positive motion from the part operated by the
cam to the other part, substantially as described.
Dated the 18th day of November 180s
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.