Year: 1886

page_text: Date of Application, 22nd Nov., 1886.
Complete Left, 22nd Aug:, 1887.
Complete Accepted, 23rd Sept., 1887.
I AUGUST WILHELM OTTO KLEINAU of Hamburg in the Empire of Germany,
Watchmaker, do hereby declare the nature of this invention to be as follows:-
My invention relates to the manufacture of locks and keys therefor.
One object of my said invention is to construct locks in such a manner, that the
principal parts of the same are uniform in shape and nevertheless will perimit of an
unlimited number of variations of the keys.
Another object of my said invention is the construction of keys for safety locks in
such a manner that they fit into the locks from both sides although their steps or
graduations of the bits are not arranged symmetrically.
I attain these objects in the following manner.
Two or more rotating tumblers are pivotted upon a pin.
These tumblers are
originally all of the same shape without a slot. A piece is cut away in order to allow
the bit of the key to enter into a notch in each tumbler in any position of the
tumblers.
For adjusting the tumblers, the key, the bit of which ought to correspond in height
with the toe of the bolt is cut out and then placed in the lock and turned to rotate the
tumblers. At each tumbler may be indicated the point, where it is touched by a
projection of the bolt. The slot is then cut out correspondingly. If desired the upper
tumbler only may be marked and then connected rigidly with the other tumblers in
order to cut out the slots of all the tumblers simultaneously. When the bolt is with-
drawn, the said projection enters into the slots which are arranged by the key bit in a
line above each other while, when the lock is locked, the solid part of the tumblers
prevents the withdrawal of the bolt, as soon as the tumblers are displaced.
The simultaneous displacement of all the tumblers after advancing the bolt is caused
by a pin attached to that tumbler which, according to the corresponding step of the
key bit, has the longest throw. This pin, which projects above the other tumblers,
moves the latter during the return motion. Consequently the notches in all the
tumblers can be of the same shape. The throw of the tumblers is limited by a pin
engaging with corresponding recesses in the same.

page_text: Similar rotating tumblers can be applied to a trunk lock. These tumblers serve
directly as hooks engaging into the staple, attached to the trunk cover. The slot is
here also arranged radially and made as above described. It is combined with a
concentric slot, thus producing the hook shape of the tumbler.
It is evident that any number of such rotating tumblers may be employed in a lock
according to the degree of security required.
According to the second part of my invention I make the key bits movable in order
to insert them into a lock from both sides although their steps may not be arranged
symmetrically.
According to one arrangement the stem is provided at its end with a slot in which
is pivotted the rear part of the bit. Thus the bit may be turned to either side or placed
longitudinally when the key is detached.
According to another arrangement the bit is mounted upon a pivot projecting
rectangularly from the key stem and is arrested in the position required by a spring
pin engaging in a suitable hole in the key bit..
Dated this 22nd day of November 1886
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: I, AUGUST WILHELM OTTO KLEINAU, of Hamburg, in the Empire of Germany,
Watchmaker, 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:-
My invention relates to the manufacture of locks and keys therefor.
One object of my said invention is to construct locks in such a manner, that the
principal parts of the same are uniform in shape and nevertheless will permit of an
unlimited number of variations of the keys.
Another object of my said invention is the construction of keys for safety locks in
such a manner, that they fit into the locks from both sides although the steps or
graduations of the bits are not arranged symmetrically.
I attain these objects by the mechanism illustrated in the accompanying drawings
in which,
Figure 1 is a side elevation of a door lock provided with my improvements and
shown in the position it would occupy when the bolt is closed and the key is taken
out; and
Figure 1 is a side view of the rotating tumbler, of which two or more may be
used.
Figure 2 is a vertical section of the lock as shown in Figure 1.
Figure 3 is a side elevation of the door lock, when the key is just in the position of
advancing the bolt.
Figure 4 is a diagram of the tumblers when the key has passed them after advancing
the bolt.
Figure 5 shows the lock after the key has withdrawn the bolt.
Figures 6 and 7 are side elevations in the locked and unlocked position of a trunk
lock provided with my improvements.
Figures 8 to 12 illustrate two modifications of keys fitting into safety locks from
either side, although their bits are not arranged symmetrically.
Similar letters refer to similar parts throughout the several views.
a, a', a³ are rotating tumblers pivoted to the pin b. These tumblers are originally
all of the same shape without the slot c as shown in Figure 1.
At a piece is cut away in order to allow the bit of the key to enter into the notch e
in each tumbler in any position of the said tumblers.
For adjusting the tumblers the key, the bit of which ought to correspond in height
with the toe of the bolt d is cut out and then placed in the lock and turned to rotate
the tumblers. At each tumbler may be indicated the point, where it is touched by a
projection d' of the bolt d. The slot c is then cut out correspondingly. If desired
the upper tumbler only may be marked and then connected rigidly with the other
tumblers in order to cut out the slots c of all the tumblers simultaneously. When the
bolt d is withdrawn the said projection d' enters into the slots c which are arranged
C

page_text: by the key bit in a line above each other as shown in figure 5, while, when the lock is
locked, the solid part of the tumblers prevents the withdrawal of the bolt d, as soon as
the tumblers are displaced (figures 1 and 4).
The simultaneous displacing of all the tumblers after advancing the bolt d is caused
by a pin f, attached to that tumbler, which, according to the corresponding step of the
key bit, has the longest throw. This pin, which projects above the other tumblers
moves the latter during the return motion. Consequently the notches e in all the
tumblers can be of the same shape. The throw of the tumblers is limited by a pin g
engaging with corresponding recesses in the same.
In Figures 6 and 7 similar rotating tumblers are applied to a trunk lock. These
tumblers serve directly as hooks engaging into the staple y attached to the trunk
cover. The slot c is here also arranged radially and made as above described: It is
combined with a concentric slot c', thus producing the hook shape of the tumbler.
It is evident that any number of such rotating tumblers may be employed in a lock
according to the degree of security required.
According to the second part of my invention 1 make the key bits movable in order
to insert them into a lock from both sides although their steps may not be arranged
symmetrically.
In Figures 8 to 10) the stem h is provided at its end with a slot n, in which the rear
part of the bit k is pivoted by the pin . Thus the bit k may be turned to either side
as shown in figures 8 and 9 or placed longitudinally as indicated by dotted lines in
figure 9, when the key is detached.
In Figures 11 and 12 the bit k is pivoted to a pin i projecting rectangularly from
the key stem and is arrested in the position required by a spring pin / engaging in a
suitable hole m in the key bit.
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 ;—
First. In locks the combination of two, three or more rotating tumblers a, a², a³
provided with passages e for the key bit and slots c with the bolt d and projection d'
substantially as set forth.
Second. The hereinbefore described method of adjusting the safety locks as claimed
in claim 1 by turning the rotating tumblers a, a¹, a² by means of the key bit in such
position as required for withdrawing the bolt and by cutting out the slots c according
to the position of the projection d' of the bolt d.
Third. In keys for safety locks the combination of the stem h with the pivot i and
the key bit k substantially as illustrated in figures 8 to 12 of the accompanying
drawings.
Dated this 22nd day of August 1887
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.