Improvements in Locks.
Year: 1892

page_text: Date of Application, 9th May, 1892
Complete Specification Left, 8th Feb., 1893-Accepted, 29th Apr.; 1893
PROVISIONAL SPECIFICATION.
Improvements in Locks.
I, ALOYS REVILLIOD DE MURALT of 2 Rue des Granges, Geneva, in the
Republic of Switzerland, Gentleman, do hereby declare the nature of this invention
to be as follows:-
This invention consists in an improved lock composed of a suitable casing so
constructed that it is interchangeable, that is to say, so that the lock may be applied
to doors opening from the right or to doors opening from the left-hand side,
combined with a spring bolt located in the said casing and hinged to a connecting-
rod which may be acted upon either by means of a button or handle, or by means
of a key; the said spring bolt being pivoted on one of its edges in a corresponding
recess in the casing.
•
The said pivoted spring-bolt and its hinged connection allows a very smooth
working of the lock the latter constituting a perfectly solid locking device.
In the accompanying drawings I have shown how my said invention may be
conveniently and advantageously carried into practice.
Figure 1 is a front view of a lock mounted for a door opening from the right-
hand side.
Figure 2 is a back view of a lock mounted for a door opening from the left-hand
side.
Figure 3 is a front view of a left-hand lock.
Figure 4 is a back view of a right-hand lock.
Figure 5 is a perspective view showing the internal mechanism of a right-hand
lock and showing the key acting upon the spring bolt.
Figure 6 is a similar view of a left-hand lock showing the key acting upon the
spring bolt.
Figure 7 is a back view of the mechanism of the left-hand lock.
Figure 8 is a back view of the mechanism of a right-hand lock.
Figure 9 is a back view of the mechanism of a left-hand lock showing the
button T turned horizontally so as to lock the door.
Figure 10 is a back view showing the mechanism of a right-hand lock with the
button T in the locking position.
The Figures 11 to 13 show the unlocked spring bolt detached, the button T
being turned vertically.
Figure 14 is an edge view of the locked spring bolt the button T being turned
horizontally.
Figure 15 is a perspective view of the double-armed spring.
Figure 16 is a perspective view of the key.
Figure 17 is a perspective view of the frame of the casing.
Figure 18 represents the cover-plate of the said casing.
Figure 19 shows the bottom-plate of the said casing.
Figure 20 is a horizontal section through the lock showing the button T turned
vertically.
Figure 21 is a similar view with the spring bolt locked by means of the button T
being turned horizontally.
The Figures 22 and 23 show perspective views of the front-plate of the
casing.
The Figures 24 and 25 show perspective views of the catch.
Figures 26 and 27 show perspective views of the internal mechanism of a safety-
lock for house-doors.

page_text: Ine Figures 28 to 31 show a somewhat modified construction of a similar lock
and
The Figures 32 to 36 show the construction of a lock adapted for furniture and
the like.
-
Similar letters of reference indicate corresponding parts in the several figures of
the drawings.
In the lock shown in the Figures 1 to 25 A is the bolt B is the casing composed
of a frame (Fig. 17) a front-plate (Figs. 22 & 23) and two plates shown in
Figs. 18 & 19.
The said casing is provided with a suitable recess 6 (Fig. 21) in which the
edge a¹ of the wedge-shaped spring bolt A engages. A connecting-rod C is hinged
at a to said spring bolt A and acted upon by a double armed spring D which tends
to maintain the spring bolt A in its outermost position that is, projecting from the
casing.
The said connecting-rod C may be operated by the key E, engaging in suitable
recesses as shown in the Figs. 5 & 6 or by moving the button T in the direction of
the arrow in Figure 20. The said movement being only possible when the said
button T is turned as shown in the Figures 11 to 12. In the position shown in the
Figures 13 and 14 its excentric-shaped base bears against the inner wall of the
casing B and locks the door.
As shown in the Figures 26 to 36 the double armed spring D may be replaced by
a spiral spring D', preferably made of nickel wire.
In the said figure the connecting-rod C is further provided with a sliding bolt G
having suitable recesses g g into which engage the cylindrical key-box H pivoted
in the casing B and turned by means of the key E. The slot of the said piece H,
intended to receive the bit of the key E, allows the projections which separate the
recesses g of the bolt G to pass in front of said piece H when the latter is turned up
by the key (see Figures 26, 27, 29 and 32) but when the 'cylindrical part of said
piece H is engaged in the said recesses g the bolt G cannot slide.
In the construction shown in Figures 26 and 27 the spring D' is attached on the
one hand to the rod C the whole acting exactly as in the locks described above.
The bolt G is arranged so as to leave the rod Č free to be moved by means of the
button T when in the position Figure 26. But if the said bolt is moved to the
right by means of the key E as shown in Figure 27 the bolt G will prevent
the movement of the rod C and the door will be locked.
According to the construction shown in Figures 28 to 31 the rod C is made of
two separate parts having their ends bent in form of hooks (Fig. 31) which engage
with a slide c adapted to slide in a suitable recess of the bolt G, said recess
containing the spiral spring D'.
When the bolt G is placed in the position shown in Figure 28 the spring bolt A
may be moved either by the knob or button of the rod C or by moving the whole
combination of bolt G spring D' and rods C by means of a key, as shown in
Figure 29.
If the key is turned in the opposite direction so as to place the bolt G in its
extreme position on the right, the spring D' will be compressed between the slide c
and the bolt G so as to prevent the movement of the said rod C the door being thus
locked.
In the construction shown in Figures 33 to 36 the spring bolt A can only be
displaced by means of the key, but the bolt G may be held by means of the key-
nut H engaging in the recesses g of the same, either in the position shown in
Figure 32 in which the spring bolt A is moved in, or in the position shown in
Figure 33, in which the spring bolt A is moved out of the casing.
Dated this 9th day of May 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Locks.
ALOYS REVILLIOD DE MURALT, of 2 Rue des Granges, Geneva, in the
Republic of Switzerland, Gentleman, 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 consists in an improved lock composed of a suitable casing so
constructed that it is interchangeable, that is to say, so that the lock may be
applied to doors opening from the right, or to doors opening from the left-hand
Bide, combined with a spring bolt located in the said casing and hinged to a connecting-
rod which may be acted upon either by means of a button or handle, or by means
of a key; the said spring-bolt being pivoted on one of its edges in a corresponding
recess in the casing.
The said pivoted spring-bolt and its hinged connection allows a very smooth
working of the lock the latter constituting a perfectly solid locking device.
In the drawings left with my Provisional Specification I have shown how my
said invention may be conveniently and advantageously carried into practice.
Figure 1 is a front view of a lock mounted for a door opening from the right-
hand side.
Figure 2 is a back-view of a lock mounted for a door opening from the left-
hand side.
Figure 3 is a front-view of a left hand lock.
Figure 4 is a back-view of a right hand lock.
Figure 5 is a perspective view showing the internal mechanism of a right-hand
lock the key acting upon the spring-bolt.
Figure 6 is a similar view of a left-hand-lock showing the key acting upon the
spring-bolt.
Figure 7 is a back-view of the mechanism of the left-hand-lock.
Figure 8 is a back-view of the mechanism of a right-hand-lock.
Figure 9 is a back-view of the mechanism of a left-hand-lock showing the
button T turned horizontally so as to lock the door..
Figure 10 is a back-view showing the mechanism of a right-hand-lock with the
button T in the locking position.
Figures 11 to 13 show the unlocked spring-bolt detached, the button T being
turned vertically.
Figure 14 is an edge view of the locked spring-bolt, the button T being turned
horizontally.
Figure 15 is a perspective view of the double-armed spring.
Figure 16 is a perspective view of the key.
Figure 17 is a perspective view of the frame of the casing.
Figure 18 represents the cover-plate of the said casing.
Figure 19 shows the bottom-plate of the said casing.
. Figure 20 is a horizontal section through the lock, showing the button T turned
vertically.
Figure 21 is a similar view with the spring-bolt locked by means of the button T
which is turned horizontally.
Figures 22 & 23 show perspective views of the front-plate of the casing.
The Figures 24 & 25 show perspective views of the catch.
Figures 26 & 27 show perspective views of the internal mechanism of a safety-
lock for house-doors.
The Figures 28 to 31 show a somewhat modified construction of a similar lock
and
The Figures 32 to 36 show the construction of a lock adapted for furniture and
the like.

page_text: the drawings.
In the lock shown in the Figures 1 to 25 A is the bolt B is the casing composed
of a frame (Figure 17) a front plate (Figures 22 and 23) and two plates shown in
Figures 18 and 19.
The said casing is provided with a suitable recess b (Figure 21) in which the
edge a of the wedge-shaped spring bolt A engages. A connecting-rod C is
hinged at a² to said springbolt A and acted upon by a double-armed spring D which
tends to maintain the springbolt A in its outermost position, that is, projecting from
the casing.
The said connecting-rod C may be operated by the key E, engaging in suitable
recesses as shown in the Figures 5 and 6, or by moving the button T in the
direction of the arrow in Figure 20. The said movement being only possible
when the said button T is turned as shown in the Figures 11 to 12. In the
position shown in the Figures 13 and 14 its excentric-shaped base bears against
the inner wall of the casing B and locks the door.
As shown in Figures 26 to 36, the doublearmed spring D may be replaced by a
spiral spring D-preferably made of nickel wire.
In the said figure, the connecting-rod C is further provided with a sliding-bolt G
having suitable recesses g g into which engage the cylindrical key-box H pivoted in
the casing B and turned by means of the key E. The slot of the said piece H,
intended to receive the bit of the key E, allows the projections which separate the
recesses of the bolt G to pass in front of the said piece H when the latter is
turned up by the key (see Figures 26, 27, 29, and 32) but when the cylindrical
part of said piece H is engaged in the said recesses g the bolt G cannot slide.
In the construction shown in Figures 26 and 27 the spring D¹ is attached on the
one hand to the rod C the whole acting exactly as in the locks described above.
The bolt G is arranged so as to leave the rod C free to be moved by means of the
button T when in the position shown in Figure 26. But if the said bolt is moved
to the right by means of the key E as shown in Figure 27 the bolt G will prevent
the movement of the rod C and the door will be locked.
According to the construction shown in Figures 28 to 31 the rod C is made of
two separate parts having their ends bent in form of hooks (Figure 31) which
engage with a slide c¹ adapted to slide in a suitable recess of the bolt G, said recess
containing the spiral spring D¹.
When the bolt G is placed in the position shown in Figure 28 the spring bolt A
may be moved either by the knob or button of the rod C or by moving the whole
combination of bolt G spring D¹ and rods C by means of a key, as shown in
Figure 29.
If the key is turned in the opposite direction so as to place the bolt G in its
extreme position on the right, the spring D¹ will be compressed between the
slide caud the bolt G so as to prevent the movement of the said rod C the door
being thus locked.
In the construction shown in Figures 33 to 36 the springbolt A can only be
displaced by means of the key, but the bolt G may be held by means of the key-
nut H engaging in the recesses g of the same, either in the position shown in
Figure 32 in which the springbolt A is moved in, or in the position shown, in
Figure 33 in which the springbolt A is moved out of the casing.
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. The combination in a lock of a casing B of any suitable form and size with a
springbolt A having a knife-shaped edge a¹ playing in a suitable recess 6 of the
casing and being hinged at a to a connecting rod C acted upon, on the one hand
by means of a spring D or D', and on the other hand by means of a button or
knob T or by a key E substantially as and for the purpose specified.

page_text: 2. In a lock having a spring bolt A with knife-shaped edge a¹ and connecting-rod C
hinged to the same, the combination of said rod C with a button or knob T
substantially as described with reference to Figures 11 to 20 and for the purpose
specified.
3. In a lock having a springbolt A with knife shaped edge a¹ and connecting
rod C hinged to the same, the combination of said rod C with a spring D¹ and a
slidingbolt G the latter being acted upon by means of a key E substantially as and
for the purpose specified.
יהוה
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.