US1378652A - Recording-lock - Google Patents

Description

J. W. BRYCE.

RECORDING LOCK. APPLICATION FILED AUG. 18A, 1919.

Patented May 122 5 SHEEIS-SHEET 1. iw. BRYCE.

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RECORDING LOCK.

APPLICATION FILED Amma. '1919.

y 1,378,652. Patented Mayu, 1921.

5 SHEETS-SHEET 4.

o "Ill ign/EN R J. W. BRYCE.

RECORDING LOCK.

APPLICATION man AuG.18,1919.

5 SHEETS-SHEET 5- (1MM/flags M I l Patented May 17, 1921. l

UNITED STATES PATsNr orrlcr.;

JAINIES Vf. BRYCE, OF BINGrHABITON, NEWVYORK, ASSGNOR TO THE INTERNATIONAL TIME RECORDING: COMPANY Ol NEVI YORK, A CORORATION OF NEX/V YORK'.

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' Specification of Letters Patent.

Patented May 1,7, 1921.

Application sled August is, 191e. sei-iai No. 318,233.

En' other applications iiled by me and notably in an application Serial No. 318232 tiled August 18, 1919, Ihave shown and .described a recording` lock system comprising a lock specially constructed to eiiect by its operation that ot a suitable recorder, to indicate the particular key used, the lock operated or to give other like information.

rlhe invention which 'forms the subject of this application is an improvement on the system set forth in the application abovenamcd, and to simplify the description of said improvement the nature of that system may be briefly and somewhat generally described as follows. l l Y Y The rotary movement of aV key inserted into the lock operates to bring the armature of a small magneto within the lock case under the torsional influence o'lf a spring and then to release it, whereby a current'impulse Vis sent vover a line ruiming to a recorder located at anyV convenient and perhaps. remote point. The insertion of the key by its operative control' of certain and special tumblers sets up within the lock any one of a given number of circuit paths each corresponding to a certain key, while the transmitted magneto impulse operates to connect up the motor of the recorder with a -local source of current which through properly constructed and arranged mechanism sends a current back over the line through that particular key indicating circuit in the key which has been closed, and a corresponding path in the recorderA in which or by which a magnet is energized that operates to'set a type-wheel to indicate the key circuit closed and hence the particular' key used.

rl `his operation as carried outin my said application involves the combination with each oi the above-mentioned tumblers of one or more circuit-breakers and circuitclosers by the operation of which one of a possible number or" combination circuits in the lock is closed, and remains so-as long as the key stays in the lock, and this involves a certain complication not only in the lock but in the recorder, which, however, is compensated for by the tact that' only a single circuit between the lock and the recorder is required.

lily present improvement is designedto simplify such 'construction and reduce the number o1c parts in the system as a whole at the expense of a plurality of line circuits equal, at least in number, to the combination tumblers used in the lock` whereby the insertion or" a key will merelyv act to close one or any two or all of said circuits and thereby establish in the recordera circuit path corresponding to the combination or permutation of circuit-closers operated, then by any suitable means to send an impulse ot current over a line to the recorder which starts its motor in operation and causes it to send an indicating current through the recorder circuit which has been established,

and which corresponds to the particular key asare necessary to its-.proper understandlng:

Figure l is a front elevation of the lock mechanism withthe side of the casing removed.

Fig. 2 is a side view of the portion of the lock mechanism shown at the lett of' Fig. l.

, Fig. 3 is a similar view of the parts shown at the right of Fig. l.

Fig. e is a top plan view of the parts contained in the lower part of the lock-casing.

Fig. 5 is a diagrammatic illustration of a magneto used as the means for transmitting a current impulse to the recorder.

Fig. 6 is another view of the same parts but in a different operative position.

Fig. .7 is a detailed view of anyone of a plurality of combination tumblers used in the lock.

8, 9 and 10 are enlarged details of the lock' mechanism, and

Fig. ll is a diagram of the complete system including lock, recorder and intermediate circuits.

The lock is shown yas comprising the usual casing attached to a door, and for purposes sufficient for this case, it is shown as a lock designed to be operated from one side of the door only. The key 2 when insei-ted sets the usual lock-controlling tumblers 3, and is made purposely long so as to set a plurality, generally three, combination or key indicating tumblers 4.

The first eect of turning a key after its insertion is to rotate cams concentrically arranged around its axis of rotation and to thereby shift to the right, by the engagement therewith of a rounded projection 5, a lever 6, which by its movement closes contacts 7 and thereby throws into a line circuit a stop magnet 8. If any other lock in the system is at this moment being operated there will be current on the line, and magnet S will in consequence be energized. lfso, a cam 9 on the end of the armature 10. will force to the left a lever 11 which, by engagement with a projection 12 on another cam disk, will stop the movement of the key so that the lock may not be operated until the other lock-in use has completed its operation.

Assuming, however, that the line is clear and that the lock may be operated, the rotation of the key carries a cam point 13 from its normal position shown in Fig. 5 under a roller 14 on a pivoted lever 15 to the position shown in Fig. 6. This lowers the lever 15, and with it an arm 16 4pivoted to its end, until a notch 17 in its end engages a stud 13 on a lever 19. By the further rotation of the key the lever 15 and arm 16 are raised, thus moving the lever 19 about its pivotal center against the force of a spiral spring 20 until a toe 21 on arm 16 strikes a stop 22 and throws the arm out of engagement with the stud 18. This releases the lever 19 which is fixed to the armature 23 of a small magneto 24, and the movement of such armature in the field therefore generates an electric impulse which flows to line.

Y Each of the key indicating` tuniblers 4 operates a circuit closer 25 and closes lits contacts when raised. A raised tumbler is locked up by a latch 26, which, Vat the proper subsequent moment, is released by the armature 27 to which is fixed a bar 28 connected by a link 29 with a latch 26. These parts are not directly involved in the present invention, and, having been more fully described in my copending application Serial No. 318,232, require no further explanationherein. The only substantial difference between this lock and what, for the purpose of the present case may be regarded as the prior art, may

Atherefore be accepted in the fact that the tumblers 4 in lieu of setting up circuit paths by combinations and permutations of closed and open contacts, merely close when raised a single set of contacts 25.

Referring now to Fig. 11,: When a key is inserted in the lock it closes any one, any two or all of the contacts 25, from each of which runs a circuit 30 to the recorder, the common return being by wire 31. lt may also be noted that while the lever 19 is moving freely to generate an impulse a cam 32 at its end closes contact 33 and thus connects up the magneto with the line circuit 34.

In the recorder there are as many double relays 35 as there are locks, and each is connected on one side with a wire 34. When a magneto impulse flows to the line it passes through a relay coil, thence by wire 36 to a back stop 37 of a relay 42 and thence back to the magneto by wire 31. By this i current, however, the relay is energized and attracting its armature 38 connects up through its other coil one wire 39 of alocal source of'current through mechanically cam controlled contacts 40, a motor 41 and relay 42 with the other wire 43 of this circuit. n

The insertion andV rotation of a key in a lock therefore closes any one, any two or all of the contacts 25 and sends to the recorder a current impulse that start-s and maintains the motor 41 in operation until the circuit through said motor is broken by the cani contacts 40. The motor drives a direct 4current generator 44, an element presentin many recorders of this type and which inturn drives a shaft that operates the cam contacts 40, a contact arm 45 which is adapted to sweep over a series of contacts 46 and such other mechanism as may be required or used.

Assume now, for purpose of illustration, that the insertion of a key closes only one set of contacts 25, that to the right of the group in Fig. 11. This closes a path over wire 30 through a relay magnet 47 from which the circuit extends over wire 48 through theV generator 44 and over two paths, one to the Contact arm 45 through a magnet 50 and the other to the front stop 51 of relay 42, and thence by wire 31 baci: to the closed contacts 25. This being a complete circuit current will flow over it as long asthe generator 44 develops current. It is assumed that there are three locks in this system, and the. three armatures of relay 42 control the three return wires 31 to .said locks, and this may be taken advantage of to operate means for indicating which lock is operated. Such means are not fully illustrated in this case, but are set forth and described in my other application above mentioned.

The magnet 47 is one of a group of three and operates a single armature. Another magnet of this group opera-tes two, and the third magnet four armatures, and each armature in its movement in response to the action of its controlling magnet, breaks one contact on which it normally rests and makes another. Having assumed that the lowermost magnet 47 has been energized, it will be seen that its Aarmature 52 completes a circuit Jfrom wire 48 to the front stop 53 ot relay 47, and that since the other relays 47 are inactive the circuit will cont-inue through back stops 54 and 55 to one of the terminal contacts 46, and from thence back to the generator when the cam 45 sweeps over it.

By this means the magnet 50 is energized and sets a type wheel, not shown, to indicate the particular key which was used, and which was responsible for the establishment ot the conditions which established this particular circuit in the recorder.

lt some other pair of contacts 25 are closed, or it any two or all of them are closed by the insertion or" a key, other circuits i`or the generator through the arm 45 and contacts 46 will be established as may readily be seen by following the plan of operation above described.

The merit of this system resides mainly in its simplicity. The fact that additional line wires are required is of little moment as multiple cables are not expensive and are readily procurable. The tact that mechanical complications, especially in the lock proper, are avoided is ot paramount ii portance.

1n these recording lock systems many other elements are usually employed, but these are not elaborated herein as the improvements are conlined to a somewhat limited eld.

While the operation of the system should be apparent to those skilled in the art in view of the preceding explanation and in view of my copending application, it may be more fully set forth as follows. Suppose an operator inserts his key at the key station indicated diagrammatically at the upper lett of Fig. 11. This causes certain oit the plungers 4 to be raised.` Tr the key is now turned in either direction to a sumcient extent, one or the other of the projections 5 on the disk 151 (see Fig. 3) will engage the lever 6 a-nd cause the closure o1c the switch 7. 1f the line 31-34 is dead at this time the electromagnet S will not be energized, even though switch 7 is closed, and the lug 12 (see Fig. 11) will not en- `gage the stop at the lower endof theV lever 11. In other words, if the line 31-34 is dead when the key is rotated sufficiently to cause switch 7 to close, the key may be rotated farther.. On the other hand, it the line 31-34 is energized at the time the. switch 7 is closed, the electromagnet 8 will be energized to cause the lower end of the lever 11 (Figs. 1 and 9) to be projected into the path ot one or the other of the lugs 12 (depending upon which direction the key was rotated). This will prevent further rotation of the key and the magneto 23 cannot be actuated.

Returning to the assumption that the line 31-34 is dead, rotation of the key to an extent sutlicient to causeclosure ot switch 7 causes the member 13 to assume the position shown in Fig. 6. Further rotation of the key causes the magneto to generate a current impulse. This current impulse energizes the electromagnet 111 causing it to attract its armature to release those ofthe plungers 4 which have been raised by a preceding key, leaving raised only those plungers 4 which are held raised by the key now in the lock. The magneto current impulse passes over the following path or circuit: from armature z3 through line wire 34, left hand coil or" relay 35, one of the back contacts oi relay 42, line wire 31, electromagnet 111 and switch 33 to the magneto. Relay 35, being thus energized, attracts its arma ture to close the following circuit: conductor 39, through right hand coil of relay 35, armature 33, switch 40, motor 41, relay 42 and conductor 43. Here it will be noted that, although the circuit through the pickup (or lett hand) coil of the relay 35 is broken on attraction of the armatures of the relay 42, the arma-ture 3S will be held in attracted position so long as the stick or holding coil e., the right hand coil) of said relay 35 is energized by the circuit last traced in detail. This means that so soon as the key has been rotated to an extent sufficient to cause the magneto to send its impulse, the key may be withdrawn from the lock. llhen the key is withdrawn the locking members 26 hold those of the plungers 4 which have been operated, in their raised position.

Flnergization of vthe circuit last traced and including the holding coil of relay 35 accomplishes a number ot functions. Thus the motor armature 41 will rotate thereby actuating generator 44, arm 45 and, at'say the end of one revolution oit the motor, the switch 40 will open momentarily.

Assuming, at this point, that the generator 44 is operating and relay 42 is energized, the `following circuit will be established at a time in the cycle ot' operation ot motor 41 depending on which of switches 25 or permutation thereof have been closed:

from generator 44, through conductor 49,

electromagnet 50, arm 45, one of contacts 46, certain armatures ot electromagnets 47, conductor 48 back'to the generator 44. It will be apparent that the time in the Vcycle of operation ot the motor driven elements at which the last-.traced circuit, and the electromagnet 50 therein, will be energized depends upon which particular Contact 46 is connected to conductor 43. It will now be shown in detail that the particular contact connected to conductor 48 through the armatures of relays 47 depends upon the combination of these relays which are energized.

Iii all three relays 47 are energized the uppermost contact 4G will be connected to the wire 48; it the two lower relays 47 alone are energized the next lower or second contactV will be connected to wire 48; it the uppermost and lowermost ot relays 47 are energized the third contact 46 will be connected to wire and so on. ln other words the time at which the electromagnet- 50 will be energized in thc cycle of operation depends upon which ot the relays 47 or combinations thereof are energized. rlfhese relays 47 are in turn controlled by the keycontrolled switches 25 so that the time at which the electromagnet 50 becomes energized in the cycle or' operation above referred to depends upon the particular key inserted. The energizing circuit of the relays 47 may be traced in detail as follows from generator 44, through Conductor 49, back contact 51 and armature ot relay 42, conductor 81, one or more of the switches 25, corresponding line wires 8O and correspond ing relays 47, conductor 48 back to generator 44.

lt will now be clearly appreciated that the time, in the cycle ot' operation oil motor 41 and arm 45, at which the electromagnet 50 becomes energized depends on the particular tumbler switch or switches 25 which have been actuated, or in other words on the particular key employed. This "function may be utilized by selecting 'a proper typesetting device (the speciiic details ot' which form no part of the present invention), to be actuated or controlled by electromagnet 50 with the result that a record corresponding to the particular key employed will be produced.

Assuming that any particular lock has been operated as above described and the key has been withdrawn but the motor 41 has not completed its cycle, it will be impossible to operate the same lock until the said motor has completed its cycle. To eX- plain this more fully, in connection with the upper leitt. hand lock in Fig. 11, so long as the holdingl coil ot the relay 35 is energized (and it will be until a break occurs at switch 40) the circuit including the coil of relay 42 and line wires 81-84 is energized. rllhe last mentioned circuit may be traced in detail as follows z-iirom generator 44, through wire 49, back contact 51 and armature or" relay 42, wire 31, wire 84, wire 148, wire 48 back to generator 44. Line wires 31-84 being energized it will be impossible to rotate a key in the lock in question far enough to actuateA the door lock. This will be clearly understood in View of the previous explanation of the action of elements 7, 8, 11 and 12, when line wires are alive.

Another and very important function is accomplished by energization of the relay 42. When any particular lock is actuated and the consequent cycle of the motor 44 has been started, it will be impossible to actuate any other lock or its magneto until the said cycle has been completed. Thus so long as relay 42 is energized the following circuits are closed: generator 44, wire 48, wire 148, line wire 34, line wire 31', a -front Contact ot relay 42, wire 49 to generator 50; also generator 44, wire 48, wire 148, line wir 84, line wire 31, a front contact oirelay 42, wire 49 to generator 50. Any attempted rotation of a key in either of the door locks associated with lines 3134, or 31"-34 to an extent sui'licient to actuate that lock or its magneto will be prevented by the particular locking coil 8 (and associated mechanism) corresponding to that lock.

lil hat l claim as my invention is 1. ln a recording lock system, the combination with a lock, a recorder and intermediate circuits connecting the same, of key controlled circuit closers in the lock, a group or circuit controllers in the recorder, electromagnets controlled by the lock circuit closers for establishing one of a possible plurality of circuits corresponding to the lock circuit closer or closers that may be operated, and means in the recorder operative to direct a current through such established circuit and by such current effect an indication of the particular key that-was used to establish it.

2. ln a recording lock system, the combination with a lock, a recorder and intermediate circuits connnecting the same, of a group of circuit'closers in the lock in independent circuits and adapted to be set or operated in diiierent combinations and permutations by the insertion ot a key, ot means in the recorder for establishing under the control of the lock circuit closers a circuit path which will correspond to the combination or permutation of circuit closers operated, a source of current and an indicating magnet and means for connecting them with the circuit established in the recorder.

3. In` a lock recording system, the combination with a lock and a recorder of a group of circuit closers in each lock adapted to be set or operated in different combinations or permutations by the insertion of a key, a circuit for each circuit closer to the recorder, a magnet in each of said circuits, means controlled by the magnets for establishing a circuit which will correspond to the particular key used for operating the lock, and means in the recorder for directing an indieating current through the established circuit therein.

ln testimony whereof I aiiiX my signature...

JAMES W. BRYCE.

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