IMPROVEMENTS IN LOCKING APPARATUS FOR THE DOORS OF SAFES AND OTHER STRUCTURES
Year: 1883

page_text: LETTERS PATENT to William Phillips Thompson Fel Inst PA of the Liverpool
and London Agency for Foreign Patent Solicitors 6 Lord Street Liverpool in
the county of Lancaster Civil Engineer for an Invention of "IMPROVEMENTS
IN LOCKING APPARATUS FOR THE DOORS OF SAFES AND OTHER STRUCTURES
"
a communication from Benjamin Franklin Flint a person resident at
Cincinnati in the county of Hamilton and state of Ohio one of the United
States of America
PROVISIONAL SPECIFICATION left by the said William Phillips Thompson
at the Office of the Commissioners of Patents on the 24th April 1883.
WILLIAM PHILLIPS THOMPSON Fel. Inst P. A. of the Liverpool and London Agency
for Foreign Patent Solicitors 6 Lord Street Liverpool in the county of Lancaster
Civil Engineer " IMPROVEMENTS IN LOCKING APPARATUS FOR THE DOORS OF
SAFES AND OTHER STRUCTURES," a communication from Benjamin Franklin Flint
a person resident at Cincinnati in the County of Hamilton and State of Ohio one
of the United States of America.
This invention relates to that system of locking apparatus wherein a time
movement is arranged to operate in connection with a permutation or other
non-time lock for the purpose of preventing the retraction of the locking bolts and
it relates more particularly to that class of combined mechanisms wherein provision
is made for disconnecting the time mechanism from the non-time lock at will and for
automatically reestablishing the connection before the locking bolt can be retracted
in case the time mechanism should be in motion at the time the disconnection is
effected
The apparatus embraces a combination of the systems represented in the United
States patents granted to H. Gross Feby 8, 1876, N° 173121; To B. F. Flint
Sept 28. 1880 N° 232604. and to Kock and Hall Feby 25 1879. N° 212610;
arranged in a peculiar relation to each other in connection with various improved
details and devices of improved construction.

page_text: 6
'
When the bolts are in a locked position, their retraction is prevented by means
of a block or stud formed upon one end of a lever and bearing solidly between
the bolt-operating bar and a rigid stud on the door.
The unlocking of the bolt mechanism is effected by dropping the end of the said
lever so as to remove its stud from behind the bar. Hence it is the function of
both the combination lock and the time movement to prevent the forward end of
this lever from falling. The combination lock has its bolt arranged as usual to lie
beneath a roller on the end of the lever to hold the same in an elevated position
while the trigger engages or locks over its rear end
The time movement and its trigger are constructed and operated in substantially
the same manner as that described in the patent to Henry Gross, hereinbefore
named, the trigger being pivoted to the frame of the time-movement and is thrown
into action by a spring when released by one of the hands of the timer.
The time movement is provided with an adjustable revolving hand which acts
at the end of the predetermined period upon a shoulder of the trigger to unlock
the latter from the lever.
A dog or latch is also arranged as in the Gross Patent for the purpose of holding
the trigger out of action for such a length of time as may be desired, a second
adjustable band being applied to the time movement to act upon the dog and
throw the trigger into action automatically in the same manner as in the Gross
Patent
In the event of a stoppage of the time movement before the release of the trigger
thereby it would be manifestly impossible to gain access to the safe upon which the
lock was without resorting to violence.
To avoid this difficulty there is provided as in the patents to Kock and Hall, a
connection between the time movement and the permutation lock whereby through
a special action of the permutation lock the time movement may be disconnected
or thrown out of engagement with the locking lever.
These disconnecting devices are operated as in the Kock and Hall patents by
means of a second or special angle bar mounted in the permutation lock and
controlled by the same tumblers which are ordinarily used.
Referring now to the details of the disconnecting devices, an angular lever is
mounted in the time movement, behind and concentric with the trigger. At its
lower end this lever has a stud or finger arranged to vibrate between and act
against a stud on the inner side of the time trigger, and a stud on the inside of the
latch or dog.
This lever is also provided with a horizontal arm arranged to be depressed by a
pin on a vertical sliding plate, the latter connected by a bar to the angle bar of
.the permutation lock, the angle bar and connecting bar having a slotted connection
as shown, to permit a limited independent play.
The angle bar is operated in the same manner as in the patent of Kock and Hall,
by means of the ordinary lock tumblers operated by the lock spindle, a special and
secret combination upon which to set up the tumblers being used
Upon making use of the secret combination and operating the angle bar it causes
the connecting bar to draw down the plate to which the before mentioned
finger is attached which in turn acting upon and turning the angular lever causes
the lip of the said lever to act against the stud of the trigger, thereby throwing the
latter out of engagement with the lock-bar, leaving said bar free to fall and
release the lock-bolts, when the combination lock can be unlocked in the usual
* manner. When the said angular lever is actuated from the combination lock as
above described, a hook at its upper end engages over a revolving shaft or spindle
of the time mechanism, for the purpose of holding the time mechanism momentarily
in its disconnected condition.
At the same time that this angular lever throws the trigger out of action, it als
acts upon the stud, of dog, thereby preventing said dog from engaging with the
trigger, thus leaving the latter free to engage again with the first mentioned lever
as soon as the angular lever is released by the rotation of the shaft,

page_text: The action of the lever in holding the dog out of action is a matter of great
importance, as the dog would otherwise engage with the trigger and hold the same
in such position as to maintain the disconnection of the timer, and thus permit the
door to be unlocked by operating the combination lock while the time. movement
is in motion. When however the dog is held out of action by the lever, as above
described, the parts are left in such condition that the time trigger may
immediately re-engage with the lever as soon as the hook rises from the shaft of
the timer.
As in the patent to Flint a book retains the timer in a disconnected condition
whenever the motion of the timer has ceased, but not otherwise, except for an
instant as above stated.-the rotation of the shaft throwing off the hook in a
second or two, when the timer is running.
In order to unlock the safe when the timer has stopped, before disconnecting the
trigger, the secret combination is first made use of in the combination lock to
operate the angle bar, and disconnect the timer which is then held out of action by
the hook.
The ordinary combination of the lock is then set up by causing the tumblers,
through the ordinary angle-bar, to retract the bolt of the lock from beneath the
lever where-upon the front end of the lever will fall, leaving the bolt-work of the
safe free to move backward. A serious danger encountered in the use of the dis-
connecting mechanism operated by a second angle-bar, as in the Kock and Hall patent,
was found to exist in the fact, that the notches or openings in the tumblers were
brought into a straight line to operate each angle-bar. It was found that under
this arrangement, a person having knowledge of one combination, and ascertaining
the difference between any given number of that combination and the corre
sponding number of the other combination, could, by subtracting that difference
from each of the numbers of the other combination, determine exactly what that
combination was.
For instance, it being discovered that the difference between the first number of
the usual combination and the first number of the secret combination was 10, it
was only necessary to add or subtract 10 from each of the numbers of the ordinary
combination to ascertain exactly the secret combination.
In order to overcome this difficulty, either or both of the angle bars are now
constructed in such manner that the tumblers require to be brought into a different
relation to each other in operating one bar, from that which they occupy in
operating the other bar.
A simple method of accomplishing this result is that of providing one of the
angle-bars with screws or studs to enter the notches of the tumblers, said studs
being placed out of line with each other. The angle-bar is provided with screws,
arranged in different lines, the angle-bar being also provided as an additional
element of safety, with a series of holes to permit the position of the screws to be
changed at will.
As regards the construction of the angle-bars, the invention consists broadly in
giving them such form that the discs or tumblers must occupy different relative
positions to admit the respective bars.
'
In practice it is found desirable to provide the locks of the class herein described
with two independent time movements, so that the stoppage of either one will not
destroy the security of the lock.
When the disconnecting mechanisın is used in connection with two movements
it is necessary that the device for momentarily maintaining the disconnection of
the movement from the lock shall be connected with both movements, and also
that it shall be so arranged that the action of either movement shall reestablish the
connection
To this end use is made of a disconnecting lever, a hook for holding the same
out of action and a spindle upon which the hook engages
A corresponding shaft or spindle forms part of the second time movement, and
an elastic or spring hooked arm engages therewith, this arm being secured at its

page_text: lower end to the angular lever. The hook has its rear end extended behind the
When the said angular
angular lever in position to bear upon the spring arm
lever is thrown forward by the disconnecting mechanism, the hooked arms engage
over the respective shafts, and if both shafts are at rest, the engagement will be
a permanent one. If however, either shaft be in motion, it will cause the corre-
sponding hook to ride therefrom
If the first hook be disengaged from its shaft the angular lever will fly backward
against the other hooked arm and disengage it also but if on the other hand the
other hooked arm be first disengaged, it will spring back against the rear end of
the first hook and cause its disengagement. The details of the two hooks may be
modified the essential feature of the invention in this regard remains the same
consisting in the use of two hooks or detents so arranged that either being unlocked
first will release the other.
While this invention is better adapted for application to what is known in the
market as the Hall time lock it is however capable of being applied in combination
with other styles of time locks. When applied to the Yale time lock a dog block
is used to prevent the retraction of the bolt work, which has a stud that strikes
against said block, and thus prevents the bolts from being moved until said block
is depressed and which is effected by means of dials and arms operating on a lever
to the end of which said block is attached
In this case the hooks which engage upon the rotating shafts of the time move-
ment as before described, are connected by a cross bar to a vertical bar, which
in turn is operated or drawn down by an angle bar of the secret combination of
the permutation lock the same as applied to the Hall lock as herein before
described.
Near its upper end the vertical bar has a laterally projecting arm which carries
a pin or stud that projects over the lever so that whenever the vertical bar is
drawn down it will tilt the lever and depress the dog block, thus permitting the
stump or stud of the bolt-work to enter the hole in the block, and admit of the
bolt work being retracted.
The invention is also applicable for combination with what is known as the
Sargent style of lock, in which a rotary pivoted bolt or stud is used to prevent
the retraction of the bolt work said pivoted bolt being held by a latch or hook and
which is disconnected by pins on the dials of the timer as the latter rotates as
indicated in said figure.
In this case the same secret combination lock is used, with a similar vertical bar
which is drawn down when desired, by the angle bar of the secret combination
just as before described. In this case the hooks are connected by a cross bar to
the vertical bar but are turned upward, the locking shoulder of the hooks being
reversed thus being arranged to engage on the under side of the rotating shafts
instead of over them, as in other cases: the principle and operation being the
same, that is they will be thrown off by the rotation of the shafts. In order to dis-
connect the latch from the pivoted bolt there is secured to the vertical bar a pin
or stud which rests just in front of said latch and another pin is secured to said
vertical bar within the lower lock case, in such position that when said vertical
bar is drawn down this pin will be in line with and behind a lug on the bolt of
the lock.
The parts being thus arranged it will be seen that when the vertical bar is
drawn down by the angle bar of the secret combination, and the lock bolt is
thrown back, the lug striking against the pin will swing the vertical bar back and
that as the said bar moves back its upper pin striking against the latch will
disconnect it from the tail of the pivoted lock bolt which will then assume the
unlocking position
In both these cases as in the former, it will be seen that if the timer be in
motion, the hooks will be thrown off before the combination of the permutation
lock can be set up, in which case the timer will prevent the retraction of the bolt
work: but in case the timer has stopped, then by means of the secret combination

page_text: the hooks can be caused to engage with their respective shafts, which having ceased
to rotate, will not throw them off and thus the vertical bar can be operated to
disconnect the timer from the locking or dogging devices, and thus permit the
door to be opened without breaking or injuring any of its parts, or any part of the
locking mechanism.
In its application to the Yale lock the result is accomplished by drawing down
the vertical bar by the angle-bar of the secret combination, while in the application
to the Sargent lock the vertical bar is first drawn down by the angle-bar of the secret
combination, after which the disconnection of the timer is effected by throwing
back the bolt of the permutation lock, this difference in arrangement and operation
being necessitated by the difference in construction of two styles of time locks to
which it is applied.
It is obvious that the invention might be combined with other styles of time
locks, besides those specially shown, which are selected because they are the kinds
most in use, and best known to the public. In each particular case the connecting
devices may have to be modified more or less according to the construction of the
time locks to which the invention is applied; but having described the invention
combined with and adapted to the three leading styles of time locks, namely:
Hall's, Sargents, and the Yale locks Co's, persons skilled in the art will be able
from what is described, to readily combine it with other styles also.
By thus combining and applying these several improvements or systems in one
organized mechanism a lock is produced which combines the advantages of all of
them, and which would seem to fulfil all the requisites of a complete safety device
for vaults safes et cetera
It is obvious that the inventions may be applied to safe and vault doors, which
have other means of holding the boltwork in a locked position, as well as those
specified, it only being necessary to so modify the connections as -to adapt tho
apparatus to the particular form or kind of device used to hold the bolt work in its
locked position, and which as is well known differs with different makers

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Phillips Thompson in the Great Seal Patent Office on
the 24th October 1883.
OF
WILLIAM PHILLIPS THOMPSON Fel. Inst. P. A. of the Liverpool and London Agency
for Foreign Patent Solicitors, 6, Lord Street, Liverpool, in the County of Lancaster,
Civil Engineer "IMPROVEMENTS IN LOCKING APPARATUS FOR THE DOORS
SAFES AND OTHER STRUCTURES."-A communication from Benjamin Franklin Flint,
a person resident at Oincinnati, in the County of Hamilton and State of Ohio, one
of the United States of America.
This invention relates to that system of locking apparatus wherein a time move-
ment is arranged to operate in connection with a permutation or other non-time
lock for the purpose of preventing the retraction of the locking bolts, and it relates
more particularly to that class of combined mechanisms wherein provision is made
for disconnecting the time mechanism from the non-time lock at will and for
automatically re-establishing the connection before the locking bolt can be retracted,
in case the time mechanism should be in motion at the time the disconnection is
effected.
The apparatus embraces a combination of the systems represented in the United
States patents granted to H. Gross, Feby. 8, 1876, N° 173,121; to B. F. Flint,
Sept. 28, 1880, N° 232604; and to Kock and Hall, Feby. 25, 1879, N° 212,610;
arranged in a peculiar relation to each other in connection with various improved
details and devices of improved construction.
Referring to the accompanying drawings,
Fig. 1-represents a face view of a safe door and its train of bolt-work with
my improved locking mechanism applied thereto, the parts being shown in
a locked position.
Fig. 2-a similar view with the parts shown with the time movement disconnected
from the locking devices.
Fig. 3 is an edge or side view of the time movement.
Fig. 4a detail view illustrating the relation of the disconnecting devices to the
Fig. 5
Fig. 6
Fig. 7
Fig. 8
timer.
is a perspective view of the angle-bar employed in the combination lock as
a means of disconnecting the timer.
is a rear face view of the trigger or finger of the time-movement.
is a view illustrating the tipping or throw-off mechanism as used in
connection with a duplex time movement, to automatially reconnect the
the same with the locking devices.
shows this invention applied to that style of time locks known as the
Yale Co's time locks, and
Fig. 9 represents the invention applied in connection with what is known as the
Sargent time-lock.
Referring to the drawings, A represents the safe door; B the bar by which the
train bolts are connected and operated; C the time movement; D the permutation
or non-time lock, and E a lever upon which the time movement and the lock are
both arranged to act, for the purpose of retaining the bolts in a locked position.
The above named parts are of substantially the ordinary construction and
arrangement.
When the bolts are in a locked position, their retraction is prevented by means of
a block or stud, a, formed upon one end of the lever E, and bearing solidly between
the bolt-operating bar B. and a rigid stud b on the safe doors as shown in Figs. 1
and 2.

page_text: The unlocking of the bolt mechanism is effected by dropping the end of the
lever E so as to remove its stud a, from behind the stump of bar B. Hence it is
the function of both the combination lock and the time movement to prevent the
forward end of the lever E from falling. The combination lock D has its bolt
arranged as usual to lie beneath a roller on the end of lever E to hold the same in
an elevated position while the trigger engages or locks over its rear end, in the
manner represented in Fig. 1.
The time movement and its trigger F are constructed and operated in substan-
tially the same manner as that described in the patent to Henry Gross, hereinbefore
named, the trigger being pivoted to the frame of the time movement, and is thrown
iuto action by a spring when released by one of the hands of the timer.
The time movement is provided with an adjustable revolving hand G which acts
at the end of the pre-determined period upon a shoulder of the trigger F, to unlock
the latter from the lever E.
A dog or latch H is also arranged as in the Gross patent, for the purpose of
holding the trigger out of action for such a length of time as may be desired, a
second adjustable hand I being applied to the time movement to act upon the
dog H and throw the trigger F into action automatically in the same manner as in
the Gross patent.
In the event of a stoppage of the time movement before the release of the
trigger E thereby, it would be manifestly impossible to gain access to the safe
without resorting to violence.
To avoid this difficulty there is provided as in the patents to Kock and Hall, a
connection between the time movement and the permutation lock D, whereby
through a special action of the permutation lock the time movement may be
disconnected or thrown out of engagement with the locking lever E.
These disconnecting devices are operated as in the Kock and Hall patents by
means of a second or special angle-bar N mounted in the permutation lock, and
controlled by the same tumblers which are ordinarily used.
Referring now to the details of the disconnecting devices K, Fig. 4 represents an
angular lever mounted in the time movement, behind and concentric with the
trigger F. At its lower end this lever K has a stud or finger o, arranged to vibrate
between and against a stud d on the inner side of the time trigger F and a stud è
on the inside of the latch or dog H, Fig. 1.
j
This lever K is also provided with a horizontal arm e¹ arranged to be depressed
by a pin fl on a vertical sliding plate L, as shown in Figs 2, 4, and 7, the latter
connected by a bar M to the angle bar N of the permutation lock, the angle bar
and bar M having a slotted connection as shown, to permit a limited independent
play..
The angle bar N is operated in the same manner as in the patent of Kock and
Hall, by means of the ordinary lock tumblers operated by the lock spindle, à
special and secret combination upon which to set up the tumblers being used.
Upon making use of the secret combination and operating the angle bar N, it
causes the bar M to draw down the plate L, which in turn acting upon and turning
the lever K causes the lip c of the lever to act against the stud d of the trigger F,
thereby throwing the latter out of engagement with the lock bar E, leaving said
har free to fall and release the lock bolts, when the combination lock can be
unlocked in the usual manner. When the lever K is actuated from the combination
lock as above described, a hook R at its upper end engages over a revolving shalt
or spindle S of the time mechanism, for the purpose of holding the time mechanism
momentarily in its disconnected condition.
At the same time the lever K throws the trigger F out of action, it also acts
upon the stude of dog H, thereby preventing said. dog from engaging with the
trigger F, thus leaving the latter free to engage again with the lever E, as soon as
the lever K is released by the rotation of the shaft S.
C
The action of the lever K in holding the dog H out of action is a matter of
great importance, as the dog would otherwise engage with the trigger and hold the

page_text: same in such position as to maintain the disconnection of the timer, and thus
permit the safe door to be unlocked by operating the combination lock while the
time movement is in motion. When however the dog H is held out of action by
the lever K, as above described, the parts are left in such condition that the time
trigger. F may immediately re-engage with the lever E as soon as the hook R rises
from the shaft of the timer.c
As in the patent to Flint, the hook R retains the timer in a disconnected
.condition whenever the motion of the timer has ceased, but not otherwise, except
for an instant as above stated-the rotation of the shaft throwing off the hook in a
second or two, when the timer is running.
In order to unlock the safe when the timer has stopped, before disconnecting the
trigger F, the secret combination is first made use of in the combination lock to
operate the angle bar N, and disconnect the timer which is then held out of action
by the hook R.
:
The ordinary combination of the lock is then set up by causing the tumblers,
through the ordinary angle bar O, to retract the bolt of the lock from beneath the
Jever E, whereupon the front end of the lever will fall, leaving the bolt-work of
the safe free to move backward. A serious danger encountered in the use of the
disconnecting mechanism operated by a second angle bar N, as in the Kock and
Hall patent, was found to exist in the fact, that the notches or openings in the
tumblers were brought into a straight line to operate each angle bar. It was
found that under this arrangement, a person having knowledge of one combination,
and ascertaining the difference between any given number of that combination
and the corresponding number of the other combination, could, by subtracting that
difference from each of the numbers of the other combination, determine exactly
what that combination was.
For instance, it being discovered that the difference between the first number of
the usual combination and the first number of the secret combination was 10, it was
only necessary to add or subtract 10 from each of the numbers of the ordinary
combination to ascertain exactly the secret combination.
In order to overcome this difficulty I now construct either or both of the angle
bars in such manner that the tumblers require to be brought into a different
relation to each other in operating one bar, from that which they occupy in operating
the other bar.
A simple method of accomplishing this result is that of providing one of the
angle bars with screws or studs to enter the notches of the tumblers, said studs
being placed out of line with each other. This construction is clearly represented
in Fig. 5, in which it will be seen that the angle-bar N is provided with screws a
arranged in different lines, the angle-bar being also provided as an additional
element of safety, with a series of holes to permit the position of the screws to be
changed at will.
As regards the construction of the angle-bars the invention consists broadly in
giving them such form that the discs or tumblers must occupy different relative
positions to admit the respective bars.
In practice it is found desirable to provide the locks of the class herein-described,
with two independent time movements, so that the stoppage of either one will not
destroy the security of the lock. When the disconnecting mechanism is used in
connection with two movements it is necessary that the device for momentarily
maintaining the disconnection of the movement from the lock, shall be connected
with both movements, and also that it shall be so arranged that the action of either
movement shall re-establish the connection.
To this end, use is made of the arrangement represented in Fig. 7, in which K
represents the disconnecting lever, R the hook for holding the same out of action,
and S the spindle upon which the hook engages as in the figures previously
described.
T represents a corresponding shaft or spindle of the second time movement, and U
an elastic or spring hooked arm to engage therewith, this arm being secured at its

page_text: lower end to the lever K as shown. The hook R has its rear end extended behind
the lever K in position to bear upon the spring arm T. When the lever K is
thrown forward by the disconnecting mechanism, the hooked arms U and R engage
over the respective shafts S and T, and if both shafts are at rest, the engagement
will be a permanent one. If however, either shaft be in motion it will cause the
corresponding hook to ride therefrom.
If the hook R be disengaged from its shaft S, the arm K will fly backward
against the hooked arm U and disengage it also; but if, on the other hand, the
arm U be first disengaged, it will spring back against the rear end of the hook R
and cause its disengagement.
While it is preferred to retain the exact construction shown, it is manifest that
the details of the two hooks may be modified; the essential feature of the invention
in this regard consisting in the use of two hooks or detents so arranged that either
being unlocked first will release the other.
While it is preferred to apply this invention to what is known in the market as
the Hall time lock, and thus far it has been so shown and described it is however
capable of being applied in combination with other styles of time locks..
In Fig: 8 it is shown applied to what is known as the Yale time lock. In
these locks, a dog block U is used to prevent the retraction of the bolt work, which
has a stud I that strikes against said block and thus prevents the bolts from being
moved until said block is depressed, and which is effected by means of the dials D
and arms ó¹ operating on the lever V to the end of which said block is attached as
shown.
In this case the hooks which engage upon the rotating shafts of the time
movement as before described are connected by a cross bar to a vertical bar M,
which in turn is operated or drawn down by the angle bar N of the secret
combination of the permutation lock D, the same as applied to the Hall lock as
herein-before described.
Near its upper end this bar M has a laterally projecting arm m³ which carries a
pin or stud n, that projects over the lever V, so that whenever the bar M is drawn
down, it will tilt the lever V and depress the dog-block U, thus permitting the
stump I of the bolt work to enter the hole in the block U, and admit of the bolt
work being retracted.
In Fig. 9 the invention is shown combined with what is known as the Sargent
style of lock, in which a rotary pivoted bolt or stud E is used to prevent the
retraction of the bolt work, said pivoted bolt being held by a latch or hook H⁹
and which is disconnected by pins on the dials D* of the timer as the latter rotates
as indicated in said figure.
In this case the same secret combination lock D is used, with a similar vertical
bar M, which is drawn down when desired by the angle bar of the secret com-
bination just as before described. In this case the hooks are connected by a
cross-bar to the bar M, the same as in Fig. 8, but are turned upward as shown, the
locking shoulder of the hooks being reversed as shown in dotted lines, thus being
arranged to engage on the underside of the rotating shafts instead of over them, as
in other cases; the principle and operation being the same, that is they will be
thrown off by the rotation of the shafts. In order to disconnect the latch H* from
the pivoted bolt, there is secured to the bar M a pin or stud n³ which rests just in
front of said latch as shown in Fig. 9, and another pin is secured to said bar M
within the lower lock case D, in such position that when said bar is drawn down,
this pin will be in line with and behind a lug on the bolt Q of the lock D as
shown in Fig. 9.
The parts being thus arranged it will be seen that when the bar M is drawn
down by the angle bar of the secret combination, and the lock bolt Q is thrown
back, the lug striking against the pin v will swing the bar M back as shown in
dotted lines, and that as the bar M moves back its upper pin n³ striking against the
latch H will disconnect it from the tail of the pivoted lock bolt which will then
assume the unlocking position also indicated in dotted lines.

page_text: In both these cases as in the former, it will be seen that if the timer be in
motion, the hooks will be thrown off before the combination of the permutation lock
can be set up, in which case the timer will prevent the retraction of the bolt
work; but in case the timer has stopped, then by means of the secret combination
the hooks can be caused to engage with their respective shafts, which having
ceased to rotate, will not throw them off,.and thus the bar M can be operated to
disconnect the timer from the locking or dogging devices, and thus permit the safe
to be opened without breaking. or injuring any of its parts, or any part of the
locking mechanism.
In its application to the Yale lock as represented in Fig. 8 it will be, seen that
the result is accomplished by drawing down the bar M by the angle bar of the
secret combination, while in the application illustrated in Fig. 9 the bar M is first
drawn down by the angle bar of the secret combination, after which the discon-
nection of the timer is effected by throwing back the bolt of the permutation lock,
this difference in arrangement and operation being necessitated by the difference in
construction of two styles of time locks to which it is applied.
It is obidus that the invention might be combined with other styles of time locks,
besides those specially shown, which are selected because they are the kinds most
in use, and best known to the public. In each particular case the connecting
devices may have to be modified more or less according to the construction of the
time locks to which. the invention is applied; but having shown the invention
combined with and adapted to the three leading styles of time locks, namely; Hall's
Sargent's and the Yale Locks Co's, persons skilled in the art will be able from
what is shown, to readily combine it with other styles also.
By thus combining and applying these several improvements or systems in one
organized mechanism, a lock is produced which combines the advantages of all of
them, and which would seem to fulfil all the requisites of a complete safety device
for vaults, safes, etcetera.
It is obvious that the inventions may be applied to safe and vault doors, which
have other means of holding the bolt-work in a. locked position, as well as those
shown, it only being necessary to so modify the connections as to adapt the
apparatus to the particular form or kind of device used to hold the bolt work in
its locked position, and which as is well known differs with different makers.
Having thus described the invention as commuicated to me, what. I claim is :-
1st. In a time locking mechanism, the combination of a locking trigger thrown
into action by the time movement, a dog to hold the same temporarily, out of
action, and a device operated by a non-time lock which throws the time trigger out
of action and at the same time prevents the engagement of the locking dog with
the time trigger.
2nd, In combination with the trigger F and time mechanism, a dog H to auto-
matically hold said trigger when thrown out of action, and a lever K operated
positively by means connecting with the outside of the safe and arranged to hold
both the trigger F and the dog H out of action.
3rd. In combination with a time movement, the trigger F provided with stud d,
the dog H provided with stud e, the lever K, means substantially such as shown
for temporarily holding said lever to keep the trigger out of action, and positive
acting means for operating the lever K, connected with a non-time lock.
4th. In combination with a time movement, the trigger F and lever K with its
hook R, connected to the angle bar of a permutation lock, substantially as and for
the purpose set forth.
5th. In a time lock, the combination of two time movements, means for discon-
necting said movements from the locking mechanism, and two automatic devices
for temporarily holding the time mechanism disconnected, said devices being
constructed so that the release of either one will cause the release of the other, and
permit the automatic re-connection of the timer with the locking devices.
6th. In combination with a time mechanism, two devices for holding the same out
of action, said devices having a reciprocal action in releasing one another.

page_text: 7th. In combination with the time movements, the arm K, hook R, and hook U,
co-operating substantially as described.
8th. In a safe or vault door fastening, the combination is claimed of the following
elements or mechanical devices, to wit:
1st a time lock or time mechanism arranged to control or dog the bolt work or
lock of the door; 2nd., a device for witholding or preventing the timer from
exercising its control for a predetermined period, and then automatically operating
to permit such control; 3rd. a permutation lock connected with said timer in such
manner that by means of it the timer can be disconnected from or thrown out of
control of the bolt work or its dogging devices; and 4th,. a device for automatically
connecting the timer and restoring its control, in case it shall not have stopped.
9th. In a safe or vault door fastening, the combination of the following elements
or mechanical devices, to wit:
1st. a time lock or time mechanism arranged to control the bolt work or lock of
the door; 2nd. a permutation lock connected with said timer in such manner that
by means of it the timer can be disconnected from or thrown out of control of the
bolt work or its dogging devices; and 3rd, a device for automatically connecting
the timer and restoring its control in case it shall not have stopped.
In witness whereof I the said William Phillips Thompson have hereunto set
my hand and seal this twenty second day of October in the year of our Lord
one thousand eight hundred and eighty three.
WM P THOMPSON
(ra)