An Improved Lock for Safes.
Year: 1889

page_text: Date of Application, 26th Jan., 1889
Complete Specification Left, 21st Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL DIECIFICATION.
An Improved Lock for Safes.
I, WILHELM JOHANN VAN BROEK, of Cologne on the Rhine, in the German
Empire, master locksmith, do hereby declare the nature of this invention to be as
follows:-
The lock of this invention consists in an arrangement of four locking bolts actuated→
through rods connected thereto by a single toothed driving wheel fixed on a solid
spindle, and of four diagonal slide bolts actuated by a second driving wheel fixed on a
hollow spindle passing over the solid spindle. The four locking bolts as well as the
subsidiary diagonal bolts, have, or are in connection with, toothed rods or racks for
engaging in the respective driving wheels. Upon turning the solid spindle to lock
the safe the locking holts are thrown outwards forming a square frame with a wedged
shaped gap at each of the four corners and upon turning the hollow spindle the four
diagonal bolts are slid into these gaps so as to form a complete frame one half of
which is in the door of the safe and the other half in the door frame or body of the
safe.
The diagonal bolts are secured against drawing back by a lock of any suitable
construction.
In the case of large safes two or more of these lock mechanisms may be arranged in
the door one behind the other.
--
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Lock for Safes.
I, WILHELM JOHANN VAN BROEK of Cologne on the Rhine, in the German
Empire, master locksmith, 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 locks for safes. It consists in an arrangement of four
locking bolts sliding into and out of corresponding recesses in the door frame and
actuated by one common driving wheel, and of four diagonal slide bolts taking into
four wedged shaped gaps between the locking bolts when in the locked position, so as
to fill up, or nearly so, the said gaps by the action of a second driving wheel.
In the accompanying drawing Fig. 1 is an inside front view of the lock of this
invention, the right hand side shewing the same locked, and the left hand side open.
Fig. 2 is a section taken through line -y of Fig. 1.
A is the frame of the door of the safe in which is mounted the hollow spindle S on
which the driving wheel c is fixed. T is a spindle introduced within hollow spindle S
and connected to the driving wheel d. Spindle S is turned by a head F as a handle,
and spindle T by wing E. vare bent pressure rods provided with teeth at their back
ends by which they engage in driving wheel d; at their front ends they are connected
to the four locking bolts a. b. are the four diagonal slide bolts engaging by their
bent toothed extensions in driving wheel c. s are steady and guide pins for steadying
and guiding the several bolts in their sliding movement.
To lock the safe the internal spindle T is turned by its wing E whereby the
locking bolts a are driven into corresponding recesses in the door frame through
driving wheel d driving the pressure rods outwards. The four locking bolts a then
form a square frame with a wedged shaped gap at each of the four corners.
head F of hollow spindle S is now turned whereby the four bolts bare slid diagonally
The

page_text: into these gaps so as with the locking bolts a to form a complete frame one half
of which is in the safe door and the other half in the door frame. The bolts a
and the recess in the door frame may of course be of any suitable form in cross
section.
In the case of large safes, two or more of such lock frames may be arranged in
the door, one behind the other.
The bolts are secured against drawing back by a lock of any suitable
construction.
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:
A frame shaped locking arrangement consisting of the four locking bolts a made
to slide horizontally and vertically into corresponding recesses in the door frame by
operating the head F and driving wheel d, a wedge shaped gap being left between
the said locking bolts at each of the four corners, and of the four diagonal slide
bolts operated by wing E and driving wheel c, and when in the locked position
engaging in the wedge shaped gaps between the locking bolts a securing these in
their position and being in turn secured in the closed position by a safety lock,
substantially as described and shewn.
Dated this 21st day of October 1889.
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.