Year: 1895

page_text: Date of Application, 31st May, 1895
Complete Specification Left, 28th Feb., 1896-Accepted, 28th Mar., 1896
1, FRIEDRICH HERMANN BACHMANN, of 11 Katzensprung, Magdeburg, in
the German Empire, Gun Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in sporting guns and has for object to
obtain a better protection against accidental discharge than hitherto.
In carrying out my invention I arrange the main springs of the guns so that they
are not compressed or in tension when the latter is being carried and are only
compressed or put in tension, at the moment when the gun is to be used, by a simple
pressure on a lever and furthermore so that springs already in the position for firing
can be again released by the same means whereby an accident of the kind above
mentioned can be always provided against.
According to my invention I provide in the lock case or box two similarly shaped
locks the cocks of which lie on the inner side of the lock plate and are adapted to
be actuated in any well known manner, and I also provide a lever pivotted to the
trigger plate and provided on each side of its front end with two projections. The
locks are arranged in the lock case or box in such a manner that the front ends of
the arms of the springs lie between the two pairs of projections. The rear arm
of the lever is provided with an inclined slot in which a pin on a second lever engages,
the second lever being also pivotted to the trigger plate. The slot in the first lever
is so arranged that when the second lever is moved backwards and forwards the
front end of the first lever is moved upwards and downwards. The levers may be
oscillated in various ways, for instance, by means of an upper slide bar which
however is so arranged that during sighting it is not in the way, or by means of a
laterally placed lever or by means of a lever placed under the gun stock.
When the upper slide bar or the lateral lever is moved forwards by hand or when
the lever under the gun stock is pressed towards the stock of the gun, then the pin
on the second lever slides downwards in the inclined slot of the first lever so
that the rear end of the said lever moves upwards and the front end downwards.
The upper projections of the first lever then press the upper arms of the springs
against the lower arms. If now the trigger be pressed the cock springs forward
against the striker and the gun is discharged. In order to bring the cocks again
into the cocked position, but without compressing the springs, the slide bar or the
lateral lever is pushed backward by hand or the lever under the stock is moved
downwards whereby the second lever is caused to slide backwards and press the
front end of the first lever upwards by means of the pin which slides in the inclined
slot of the first lever. The lower projections of the first lever then press against
the lower arms of the springs whereby the latter are moved upwards and
consequently the cocks are forced back and the sears then drop into the notches
of the cocks so that the latter are brought to the position for firing without
however compressing the springs sufficiently to enable them to operate the cocks.
When the slide bar is used I also provide the lump bolt of the gun with a bent
bar at its front end so that when the top-lever pressed to the right the lump
bolt slides backwards in the ordinary manner and carries with it the said bent bar.
This latter takes with it the second lever whereby the front end of the first

page_text: lever is. pressed upwards and the hammer cocked whilst the main spring remains
uncompressed thus preventing accidental discharge.
Dated the 31st day of May 1895. .
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in Small-arms.
I, FRIEDRICH HERMANN BACHMANN, of 11 Katzensprung, Magdeburg, in
the German Empire, Gun 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 improvements in sporting guns and has for object to
obtain a better protection against accidental discharge than hitherto.
In carrying out my invention I arrange the main springs of the guns so that
they are not compressed or in tension when the latter is being carried and are only
compressed or put in tension, at the moment when the gun is to be used, by a simple
pressure on a lever and furthermore so that springs already in the position for firing
can be again released by the same means whereby an accident of the kind above
mentioned can be always provided against.
In the accompanying drawings,-
Figure 1 is a longitudinal section of the lock-case of a gun provided with my
improved releasing device:
Figure 2 is a similar view to Figure 1 shewing the releasing device provided
with a slide for operating the same:
Figure 3 is a similar view to Figure 1 but shews the releasing device provided
with a lateral lever for operating the same:
Figure 4 is a view similar to Figure 2 but shewing the spring raised by the
releasing device :
Figure 5 is a perspective view of the lock shewing the hammer cocked and the
spring uncompressed:
Figure 6 is a similar view of the lock shewing the hammer uncocked:
Figure 7 is a longitudinal section of the lock-case of a gun constructed according
to my invention shewing the hammer cocked and the spring in compression :
Figure 8 is a similar view shewing the position of the parts when the gun has
been discharged:
Figure 9 is a side view; and,
Figure 10 a front view of the main lever of the releasing device :
Figure 11 is a section on the line g- of Figure 8 of the rear part of the said
lever:
Figure 12 is a longitudinal section of the lock-case shewing the hammer cocked
but the spring uncompressed:
Figure 13 is a section of the lock-case provided with an arrangement for operating
the releasing device.
According to my invention I provide in the lock-case or box two similarly shaped
locks the cocks of which lie on the inner side of the lock plate and are adapted
to be actuated in any well known manner, and I also provide a lever H,
Figure 1, pivoted at i to the trigger plate A and provided on each side of its front
end with two projections a and a¹. The locks are arranged in the lock-case or
box in such a manner that the front ends of the arms of the springs lie between
the two pairs of projections a and a'. The rear arm of the lever H is provided
with an inclined slot in which a pin on a second lever H₁ engages, the second
lever being also pivoted to the trigger plate at o. The slot in the lever H is

page_text: so arranged that when the lever H¹ is moved backwards and forwards the front
end of the lever H is moved upwards and downwards. The levers may be
oscillated in various ways, for instance, by means of an upper slide bar S,
Figure 2, which however is so arranged that during sighting it is not in the
way, or by means of a laterally placed lever S', Figure 3, or by means of a
lever S, Figure 1, placed under the gun stock.
t
When the upper slide-bar S, Figure 2, or the lateral lever S', Figure 3, is
moved forwards by hand or when the lever S", Figure 1, under the gun stock
is pressed towards the stock, then the pin on the lever H-slides downwards
in the inclined slot of the lever H so that the rear end of the said lever moves
upwards and the front end downwards into the position shewn in Figures 1, 3
and 7. The upper projections a of the lever H then press the upper arms of
the springs against the lower arms. If now the trigger be pressed as illustrated
in Figure 8, the cock or hammer springs forward against the striker and the gun is
discharged. In order to bring the cocks again into the cocked position, but without
compressing the springs, the slide bar S or the lateral lever S₁ is pushed backward
by hand or the lever S under the stock is moved downwards whereby the lever H¹
is caused to slide backwards and press the front end of the lever H upwards by
means of the pin x which slides in the inclined slot of the lever H. The lower
projections a¹ of the lever H then press against the lower arms of the springs
whereby the latter are moved upwards and consequently the cocks are forced back
and the sears then drop into the notches of the cocks so that the latter are brought
to the position for firing without however compressing the springs sufficiently to
enable them to operate the cocks.
When the slide-bar S is used I also provide the lump bolt V, Figure 13, of
the gun with a ben bar W at its rear end so that when the top lever T is
pressed to the right the lump bolt V slides backwards in the ordinary manner
and carries with it the said bent bar W. This latter takes with it the lever H¹
whereby the front end of the lever H is pressed upwards and the hammer cocked
whilst the main spring remains uncompressed thus preventing accidental discharge.
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 :-
1. A gun lock having a lever such as H pivoted to the trigger plate and
provided at its front end with a pair of projections on each side which effect the
cocking and uncocking of the lock when the lever is moved upwards and downwards,
substantially as described.
2. A gun lock having a lever such as H¹ pivoted to the trigger plate and
connected with the lever H by means of a pin in the lever H', which pin slides in
an inclined slot in the lever H whereby the latter is caused to move upwards and
downwards when motion is imparted to the lever H¹, substantially as hereinbefore
described.
3. A gun lock having two levers H and H¹ engaging with one another and so
connected with the springs and with the cocks that when the lever H is moved
upwards the cocks or hammers are cocked, substantially as described.
Dated the 28th day of February 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.