An Improved Leaf-adjusting Device for use in Looms.
Year: 1890

page_text: Date of Application, 6th May, 1890
Complete Specification Left, 4th July, 1890-Accepted, Sth Aug., 1890
PROVISIONAL SPECIFICATION.
An Improved Leaf-adjusting Device for use in Looms.
I, CARL Schulder, of Wald, Rhenish Prussia, in the Empire of Germany Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a leaf-adjusting device for use in looms. The improved
device is characterized by the fact that its opening takes place through any shocks
or other accidental causes and that the adjustment can be very readily effected.
In its simplest form this adjusting device comprises two flat bars, each of which
is provided at one of its ends with an eye or hook for attaching the same to the cord.
To one of these bars is fixed a pin which extends through a slot in the second bar
and holds the two bars together similarly to a rivet whilst it can readily be displaced
in the said slot. The two bars are therefore inseparably connected by the said pin
but can be displaced one upon the other for the purpose of adjusting the leaf. For
uniting the two bars so as to constitute a rigid whole after the adjustment at the end
of the first bar is formed a hook which can be inserted into one of the slots provided
in the second bar. The adjustment of the leaf is facilitated by the bars enabling to
be bent asunder to form an angle, after the connection has been severed. For this
purpose the first bar must be bent backwards a little, which is easily effected by
taking hold of projections arranged laterally at its end and moving it to one side.
The slots in the second bar are preferably numbered so as to expedite the adjustment
which is effected by allowing the hook spring back into the proper slot. In order
that the hook shall not leave the slot through shocks or other accidental causes it is
bent to such a shape that when the leaf is pulled it will engage with the bridge piece
or part between two slots.
When the aforesaid hook on the first bar has been passed through a slot in the
second bar it does not quite fill up the latter and can be displaced therein to a slight
extent. To prevent this displacement upon the above-mentioned pin connecting the
two bars is pivoted a third bar which is adapted to be displaced together with the first
bar, being arranged on the opposite side of the second bar. This third bar which is
made somewhat elastic has a nose at its free end and lateral projections for conveniently
taking hold of it. The said nose fits exactly into the space which remains in the slot
after the book has been inserted so that, when the nose has been introduced into the
said space from the rear side, the bars will be firmly held together and form a rigid
whole. Accordingly the connection of the bars cannot be severed by shocks or other
accidental causes.
A modification of the safety or locking device consists in providing the third bar
with a pin at such a point that when the hook on the first bar has been put in a slot
in the second bar the said pin can be inserted into one of the next slots above the
pin being made to completely fill up this slot thus preventing its displacement. Now
in order to prevent also the aforesaid hook on the first bar from being displaced or
getting loose the third bar is provided with an opening only as large as the said hook
and is so arranged that the latter cannot give upwardly. This arrangement is
however not absolutely necessary if the pin on the third bar completely fills up the
slot into which it is introduced for as the lower end of the third bar is connected with
the first bar so that the two bars cannot be displaced relatively to each other the
hook on the first bar will not leave the slot in the second bar.
Dated this 6th day of May 1890

page_text: COMPLETE SPECIFICATION.
An Improved Leaf-adjusting Device for use in Looms.
I, CARL SCHULDER, of Wald, Rhenish Prussia, in the Empire of Germany,
Manufacturer, 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 :-
This invention relates to a leaf-adjusting devico for use in looms. The improved
devicu is characterize by the fact that its opening cannot take place through any
shocks or other accidental causes and that the uljustment can be very readily
effected.
The simplest mode of carrying the invention into practice is represented in the
accompanying drawing, the figures of which are hereinafter referred to.
The improved device comprises two flat bars a and beach of which is provided at
one of its ends with an eye or look e ord for attaching the same to the cord. To
one of these bars a is fixed a pine which extends through a slot in the bar and
holds the two bars together similarly to a rivet whilst it can readily be displaced in
the said slot f. The two bars are therefore inseparably connected by the said pin
but can be displaced one upon the other for the purpose of adjusting the leaf. For
uniting the two bars so as to constitute a rigid whole after the adjustment, at the end
of the first bar a at gin formed a hook which can be inserted into one of the slots /
provided in the second bar 6. The adjustment of the leaf is facilitated by the bars
being enabled to be bent asunder to form an angle, after the connection has been
severed. For this purpose the first har a must be bent backwards a little, which is
easily effected by taking hold of projections / arranged laterally at its end, and
moving it to one side. The slots h in the second bar are preferably numbered so ns
to expedite the adjustment which is efferted by allowing the hook to spring back
into the proper lot. In order that the hook shall not leave the slot through
shocks or other accidental causes it is bent upon itself as shown at i so that
when the leaf is pulled it will engage with the bridge piece or part between two
slots h.
When the aforesaid hook g on the first bar a has been passed through a slot / in
the bar it does not quite fill up the latter and can be displaced therein to a slight
extent as shown in Figure 2. This defect is obviated by the arrangement shown in
Figures 3, 4, and 5. On the above-mentioned pin e connecting the two bars, is
pivoted a third bark which is adapted to be displaced together with the bar, on the
opposite side of the bar b. This bar which is made somewhat elastic has a nose at
its free end and lateral projections for conveniently taking hold of it. The said
nose fits exactly into the space which remains in the slot after the hook has been
inserted so that, when the nose has been introduced into the said space from the
rear side, as shown in Figure 5 the bars will be firmly held together and form a rigid
whole. Accordingly the connection of the bars cannot ho severed by shocks or other
accidental causes.
A modification of this safety or locking device shown in Figures 3 and 5" consists
in providing the bar & with a pin at such a point that when the hook on the first
bar a has been put in a slot in the second bar the said pin can be inserted into
one of the next slots above, the pin being made to completely fill up this slot thus
preventing its displacement. Now in order to prevent also the aforesaid hook gon
the bar from being displaced or getting loose, the bark is provided with an
opening a which is only as large as the said hook and is so arranged that the latter
cannot give upwardly. Figure 5. This arrangement is however not absolutely
necessary, if the pin n on the bar & completely fills the slot into which it is introduced
for as the lower end of the third bar is connected by the rivet e with the bar a
so that those two bars cannot be displaced relatively to each other the hook on the
first bar will not leave the slot in the second bar.
Figure shows a modification wherein two hars a and k are also employed, which

page_text: however are only provided with simple hooks g, without bends. The hooks fit exactly
into the holes in the central bar 6; one of the two outer bars (in the drawing the
one indicated by k) is somewhat longer than the other, a, so that the hook of k
engages with the next hole above, in the bar 6 or with one of the following boles.
Both bars a and k hear against the bar b so as to spring, but they are connected by
a rivet e which can be displaced in the slot in the bar b. In this manner I prevent
the connection becoming severed of itself.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me
by my foreign Correspondent, I declare that what I claim is :-
First. A leaf-adjusting device for looms, in which the adjusting bar a is fixed to
the bar 6 by the pin e so that it can be displaced, and is hooked into the slots h of
the bar 6 by means of the hook g.
Second. In the leaf-adjusting device mentioned in the first claim the fixing of the
hook by a nose m or n on a third bar & connected with the bar a, and fitting
either into the same slot has the hook m, Figures 3 and 5, or into one of the
following slots h similar to the hook n, Figures 3 and 5º.
Dated this 4th day of July 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.