Improvements in Dog Leashes.
Year: 1892

page_text: Date of Application, 1st Sept., 1892
Complete Specification Lelt, 8th Oct., 1892-Accepted, 31st Dec., 1892
PROVISIONAL SI MUITIO
Improvements in Dog Leashes.
1, HERMANN VOLLMANN, of Gruningen, near Greussen, Schwarrburg, Zonders-
hausen, Farmer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a dog-leash, in which the engaging catch of the leash
band is connected by a non-extensible cord with a spring pressed piston in such a
manner that the latter, when released, yields to the action of its spring and shoots
back, thereby drawing back the engaging catch.
In the accompanying drawings which illustrate the dog-leash provided with
waist-belt attachment,
Figs. 1 and 14 show the same in the disengaged condition.
Fig. 2 shows a leash in the engaged condition, in which the piston is pressed
inwards.
Fig. 3 is a side elevation of Fig. 2.
Figs. 4 and 44 show a longitudinal section through the leash.
The leash is constructed as follows:-
The leash collar a is provided at one end with a hook which, when the leash
collar is closed, engages in the lock c and is held by a catch d. The catch d is
attached to a bolt e and is pressed by a spring finto the position shown in Fig. 4.
An eye or ring g fixed to the bolte is connected with a flexible cord which is
arranged so as to be capable of movement in the interior of the leash line or cord i.
The leash lines i are fastened in the usual manner round the waist of the hunter by
means of connecting plates and hooks and also by means of a strap drawi
through the eyes m of the hooks l. In the end of this leash line is fixed a meta!
sleeve in which works the piston o. The extension p of the piston is attached
to the disengaging cord h. A spring has a tendency to press the piston o into the
position shown in Fig. 1, and is of greater strength than the spring/
2
The piston o is furnished at the top with a shoulder and a press knobs. Against.
the sides of the piston o act two pins which, are capable of lateral movement
relative to the piston o; these pins are pressed by springs against the piston»,
so as to retain it in its inner position; the pins t can be drawn back by means of
levers .
The operation is as follows:-
When the leash collar a is to be engaged or fastened, the piston o is brought into
the position shown in Fig. 4 by pressing on the knob s, and is held in such position
by the pins t with the result that, since the cord is not in tension in this case, the
catch is allowed to yield to the action of the spring so that the said catch
assumes the position shown in Fig. 4. The hook is now pressed against the
catch d, which is thus moved back in opposition to the spring, but immediately
returns and holds firmly the hook b. When the leash collar is to be unfastened,
that is to say, the dog in the leash is to be released, the two levers are pressed by
the fingers. Then in consequence of the expansion of the spring 7, the piston
moves into the position shown in Fig. 1, thereby tightening the cord hand
drawing the catch d back into the tube wc, so that the book b is released and the
dog released.
"
The leash line and the disengaging cord may be made of any desired durable
materials.
Dated this 1st day of September 1892.
IT VOLLMÄNN

page_text: COMPLETE SPECIFICATION.
Improvements in Dog Leashes.
I, HERMANN VOLLMANN, of Grüningen, near Greussen, Schwarrburg Zonders-
hausen, Farmer, 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 dog-leash, in which the engaging-catch of the leash
band is connected by a non extensible cord with a spring pressed piston in such a
manner that the latter, when released, yields to the action of its spring and shoots
back, thereby drawing back the engaging catch.
In the drawings left with my Provisional Specification which illustrate a dog-
leash according to this invention provided with a waist belt attachment,
Figs. 1 and 1 show the leash in the disengaged condition.
Fig. 2 shows the leash in the engaged condition in which the piston is pressed
inwards.
Fig. 3 is a side elevation of Fig. 2.
Figs. 4 and 4 show the leash in longitudinal section.
The leash is constructed as follows:-The leash collar a is provided at one end
with a hook which, when the leash collar is closed, engages in the lock and is
held by a catch d. The catch d is attached to a bolt e and is pressed by a spring /
into the position shown in Fig. 4. An eye or ring g fixed to the bolte is con-
nected with a flexible cord which is arranged so as to be capable of movement
in the interior of the leash line or cord . The end portions of this leash line i
are fastened in the usual manner round the waist of the hunter by means of
connecting plates & and hooks and also by means of a strap drawn through the
cres m of the hooks l. In the end of the leash line is fixed a metal sleeve n in
which works a piston o. An extension p of this piston is attached to the dis-
is a spring having a tendency to press the piston into the
engaging cord.
position shown in Fig. 1, and of greater strength than the spring/
The piston o is furnished at the top with a shoulder and with a press knob s
Against the sides of the piston a act two pins which are capable of lateral
movement relatively to the piston o. These pins are pressed by springs e against
the piston o so as to normally retain it in its inner position, and are capable of
being drawn back by means of levers .
The operation is as follows:-
t
2'
0
When the leash collar a is to be engaged or fastened the piston o is brought into
the position shown in Fig. 4 by pressing on the knobs, and is held in such
position by the pins t with the result that, since the cord is not in tension in this
case, the catch is allowed to yield to the action of the spring, so that the said
catch will assume the position shown in Fig. 4ª. The hook is now pressed
against the catch d which is thus moved back in opposition to the spring, but
immediately returns and firmly holds the hook b. When the leash collar is to be
unfastened, that is to say when the dog in the leash is to be released, the two
levers u are pressed by the fingers. Then in consequence of the expansion of the
spring 9, the piston o moves into the position shown in Fig. 1, thereby tightening
the cord hand drawing the catch d back into the tube w so that the hook & will be
disengaged and the dog released.
The leash line and the disengaging cord may be made of any desired durable
materials.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A dog-leash in which a họok & is arranged to be held by a catch d, and to be

page_text: disengaged by means of a cord 4 which connects the catch d with a piston o that
is held in the required position by stop pins, the arrangement being such that
on withdrawal of the stop pins t, the piston will be forced back by a spring 7,
and thereby at once draw back the catch d and release the hook substantially
as herein described.
2. In the dog-leash of the kind referred to in the preceding claim, the arrange-
ment of a spring behind the catch for pushing forward the latter when the
disengaging cord is released, substantially as described.
3. In the dog-leash of the kind referred to in Claim 1, the arrangement of
levers, for operating the stop pins t, and the springs for pressing forward
the stop pins against the piston o substantially as described.
Dated this 8th day of October 1892.
H. VOLLMANN,
By L. W., per F. B.