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B. J. COLBY.
ELECTRIC LOOK.
No. 446,509.
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Patented Feb. 17,- 1891.
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UNITED STATES PATENT OFFICE.
EINYARD J. COLBY, OF CHICAGO, ILLINOIS.
ELECTRIC LOCK.
SPECIFICATION forming part of Letters Patent No. 446,509, dated February 1'7, 1891.
Application ?led May 6, 1890. Serial No. 350,813- lNo model.)
To all whom it may concern:
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tact 8, and another from contact 2 through
Be it known that I, EDWARD J. COLBY, a magnet E to contact 6, and a series of cir‘
citizen of the United States, residing at Ohi cuits from contact 2 through magnet G to 55
cago, in the county of Cook, in the State of Illi contacts 3, 4-, 5, 7, and 1.
nois, have invented a certain new and useful
O is a battery-jar having the conductors l’
Improvement- in Electrical Safes, of which P and the terminals R and S.
The use and operation of myinvention are
the following is a full, clear, and exact speci~
iication.
as follows: If the lid of the safe is closed, by 60
My invention relates to electrical safes or turning the knob G in the position indicated
devices for locking the same, and has for its in Fig. 2 the arm 0’ will engage the end of
object to provide convenient means whereby the recess (1“ and force the bolt G‘ home into
a safe or receptacle may be closed, so that it
can only be opened by an electrically-operat
ing combination.
It is illustrated in the ac
companying drawings, wherein
a suitable keeper on the interior of the safe.
Then the bolt C“ engages the slot CF and se
curely locks the bolt in its position, Revers
ing the knob will have no effect upon the are
rangement of the parts, as the arms can be
Figure 1 is a perspective view of a safe.
Fig. 2 is a reversed view of the interior of the retracted without engaging anything. At the
lid, and Fig. 3 is a portion of the same with same time all of the armatures will be found
parts shown in a different position.
to be free or out of action, there being no
Like parts are indicated by the sameletter current passing through any of the magnets,
in all the ?gures.
and the armature D’ will engage the slot D2.
A is the body of the safe, and B the lid. If now it is desired to unlock the safe, the
On the surface ofthelid are the contact-points electric battery, with its terminals, maybe em 75
l 2 3 e 5 6 7 S, and they extend through thelid ployed for that purpose. There is nothing to
to like contact-points 1 r2 3 l 5 6 7 S.
U is a knob projecting upon the lid and ca
distinguish one of the outer contacts from
another; but the person familiar with the
pable of rotation, and having secured to its combination will know how to apply the bat
inner end the two arms 0' 0*, adapted, re tery, and he will apply it by placing one ter~ 80
spectively, to rest in the recess 0“ on the bolt
30 01 and to engage the pin C5 on the bolt C‘).
lVhen the knob is turned in the position in~
dicated in Fig. 53, the bolt is driven home, so
as to engage a suitable keeper on the interior
of the safe A, and it is retained in this posi
tion by the bolt 0“, which passes into the slot
CT in the bolt C". The bolt 0“ reciprocates
through the keeper D, and is controlled by
the armature D", which engages the slot D2
inthe bolt 0“, and which is itself operated by
40 the magnet E.
minal on contact 2 and the other terminal on
contact (3, whereupon a current will pass
through the magnet E and will cause it to re»
tract the armature D’, and will retract the
bolt 0“ and release the bolt (3". He will now
remove the terminal from the contact- 6 and
place it upon contact 8, whereupon a current
will pass through the magnet K and cause its
armature to retract the bolt (3*. Thus it will
be observed that to open the lock it is neces 90
sary‘ to know in the ?rst instance the two
terminals which will complete the circuit
The bolt 06 is also capable of
actuation by the armature F, which is 0011 through magnet F, and in the second place
trolled by the magnet G. On the end of the to know exactly the two terminals which will
bolt (J4 is a knob ll, by which the armature complete the circuit through K, for if the
J is connected to such bolt. Said armature wrong contacts are coupled in the first in
is controlled by the magnet K. From contact stance the bolt C“ will not be retracted, and
2 leads conductors L, L’, and L2 to the three if it is retracted and the wrong pair of ter~
magnets, From contact 6 leads the conductor minals is then connected this bolt will be re
If to the magnet E, and from all the other con~ turned to its position, for all the other ter
tacts leads the conductor 1:‘ to the magnet G, minals are connected with the magnet G. If
50 except from contact 8, and from this the con» several of the contacts‘, are simultaneously
duetor Lileads back to the magnet K. Thus connected, the various currents and magnets
a circuit is made through magnet K to corn will oppose each other, so that no operation
it
446,509
will be had. Of course it is apparent that
the combination can be varied at will by va
rying the connection of the several conduct
ors with the contacts, and it will also be de
sirable to so construct the several magnets
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ture adapted to lock the bolt when in posi
that the operation of the parts will be prac
tion, a series of contacts and conductors, a
portion of which contacts only are in circuit
with the magnet, a second magnet whose
armature is opposed to that of the ?rst and
which is connected with a portion of such
tically noiseless.
contacts, and a third magnet whose armature ,
Many variations and alterations of my de is connected with the bolt and adapted to re
vice could be made without materially de tract the same, which magnet is connected
parting from the spirit of my invention.
with a portion of such contacts.
Having thus described my invention, what I
ED‘VARD J. COLBY.
claim, and desire to secure by Letters Patent,
is as follows:
The combination of a safe with a bolt se
15 cured in the lid thereof, a magnet and arma
Witnesses:
CELESTE P. CHAPMAN,
DAVIDA J. JOHNSON.
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