US2101058A - Alarm system - Google Patents

Description

Dec. 7, 1937. B, G LDSTON; 2,101,058

ALARM SYSTEM Filed July 30, 1952 4 Sheets-Sheet l 66 I Fl 6., 2

. I u i I 54 S's "i E l I g 52 M v I, M 3l0 I l r- G7. INVENTOR 60 BENJAMIN 60L0670/Vf VWAIGW ATTORN EY Dec. 7, 1937. B. GOLDSTONE ALARM SYSTEM Filed July 50, 1932 4 Sheets-Sheet 2 FIG.4

F'IG.3

FIG.5

N M .Rm M M a V mN W M my OJ 8 m ATTORNEY Dec. 7, 1937. B. GOLDSTONE ALARM SYSTEM Filed July 30, 1932 4 Sheets-Sheet 4 INVENTOR. BENJA MIN GoLosTo/vE ATTORNEY.

Patented Dec. 7, 1937 UNITED 15-1- ants ATENT 19 Claims.

This invention relates to alarm systems.

The particular reference had in this connection is to a system of electrical protection for enclosures by which (1) upon an attack made upon the enclosure such that an electrical protective circuit is broken or short-circuited, an alarm will be given; (2) the time when the system is made effective for these purposes will be recorded, as well as the time at which the system is deenergized, and also the time of initiation of an alarm by the system; (3) mechanism locks the main exit from the enclosure after all the other'exits have been locked from within the enclosure, the operation of which mechanism is such that passage through such exit is permitted without the initiation of an alarm, but if the mechanism be operated to completely closed position when any of the other exits are not properly guarded, that fact will immediately be indicated by the giving of an alarm; (4) after the permissible passage through the exit, and actuation of the mechanism to barring position, the system will initiate an alarm upon any attempt to tamper with the system or to make an entry through any of the exits including the one barred by the mechanism; (5) the operation of such mechanism effects the printing of the time when such a passage was made through the exit, that is, whenever the locking mechanism is operated to locked or unlocked position; (6) once the system has been energized by fully closing the switch and the locking mechanism, the system continues operative, regardless of the condition of thelockingmechanism, as the system may not be defeated by tearing the lines going to the door or by destroying the locking mechanism, an element entirely distinct from the locking mechanism thereafter operating to make the system continuously effective; ('7) the locking mechanism is provided with automatic means which, once released, permits the mechanism to function but once without being again released, that is, but one operation of the look from open to closed, and then to open, position again, will be permitted for a single release of the automatic means; (8) the release ofthe lock mechanism to permit this single complete cycle is made the function of a coin-controlled mechanism; (9) the locking mechanism, by its operation, efiects at least three simultaneous functions; (a) the locking of the main door or exit to prevent access to the interior of the enclosure guarded; (b) the printing of the times at which the system is made effective or at which the door is bolted and unbolted; and (c) the energizing of the entire system for the purpose of initiating an alarm, and this is true whether a main switch on the panel is closed by a thoughtless operator or not.

The alarm system intended for this purpose generally consists of an electrical conductor strung across portions of the walls of an enclosure through which access might be had to the interior of that enclosure. through this conductor, or, in open circuit work, a power source is made available for forcing current throughthat conductor when an attack is made upon the system. In closed circuit work, current flows continuously through the conductor and energizes a relay which retains in raised position an armature or drop until the energizing current is cutoff by interference with the system. When this happens, the drop effects the completion of a circuit, the result of which is the energization of a gong circuit or a circuit of some other similar alarm producing elements for well known purposes.

Where movable closures are provided for exits from such enclosures, a party within the enclosure must be provided with some means for safe passage through one of these exits in order that the alarm shall not be effected until he has completed his passage out of the enclosure. It is an object of the invention to provide means which operates as a lock for preventing opening of such a closure, the look also having associated with it mechanism to effect the deenergization of the alarm circuit and permit free passage through the exit governed thereby until the lockhas been moved to locking position. Thereafter, any interference with the door would cause the initiation of an alarm whether the lock be fouled or even be completely removed from the door. Until the lock has been closed, no alarm can be initiated; passage through the door may take place freely, until the lock has been manipulated to closed position, without danger of a false alarm.

Where stores are under the supervision of employees, as in chain-store operation, it is highly desirable to have some record that the alarm system was actually made effective and also, of course, the times at which the employees opened and closed the premises and thereby made the alarm efiective and ineffective. In conjunction with such an apparatus, the time at which an alarm was initiated and the related time at which attention was had to the alarm, with consequent deenergization thereof, is also desirable. For this purpose, the system has incorporated thereinto means for recording the time at which Current is passed 7 the lock is actuated to open or closed positions, and also to record the time at which any break or any other interference with the alarm system is caused. It is an object of the invention, in conjunction with apparatus of this character, to provide time-control1ed means for positioning printing devices for the purposes indicated and to associate therewith a, plunger mechanism control, the action of which will be momentary so that no interference with the continued rotation or operation of the printing device will be caused. The impact will merely be sufiicient to efiect the imprint on a suitable tape with consequent release of the printing device for further time-controlled rotation.

The property that the lock ng mechanism, once released, can function only for one complete cycle and then is again made ineffective is utilized in making the releasing means the subject of coin-control.

It is well to understand, at this time, the manner in which these systems function in commerce. Operating and service companies install the systems at much below their actual cost, and thereafter supervise the operation of the system for a definite sum per unit time, as per day, week, month or a like term. Collections, as usual, involve the customary problems, where service has been rendered and the amounts involved are so small as not to warrant any costly collection action. If the patron be made to pay in advance a suitable sum at each time he desires his system made operative, this necessity for enforcing collections is entirely avoided. It is an object of the invention to associate with the lock means to make the locking means inoperative for actuation to locking position unless a suitable check or token be first deposited in a receptacle provided for that'purpose, and thereby to make impossible the energization of the alarm system until the proper monetary representative has been assembled with the apparatus.

Other objects of this invention will hereinafter be set forth, or will be apparent from the description and the drawings, in which are illustrated embodiments of apparatus for carrying out the invention.

The invention, however, is not intended to be restricted to any particular construction or arrangement of parts, or to any particular application of such constuction, or to any specific manner of use, or to any various details thereof herein shown and described, as the same may be modified in various particulars or be applied in many varied relations without departing from the spirit and scope of the claimed invention, the practical embodiments herein illustrated and described merely showing one of the various form and modifications in which the invention m ght be embodied;

On the drawings, in which the same reference characters refer to the same parts throughout, and in which are disclosed preferred embodiments:

Fig. 1 is an elevational view of a casing having housed therein timing mechanism, a printing device and certain portions of the alarm circuit by which certain ofthe elements of the in vention are eifected;

Fig. 2 is a side elevational view, showing a detail of the time printing mechanism;

Fig. 3 is an elevational view of a lock casing constructed to embody certain features of the invention;

Fig. 4 is a vertical sectional View, on the line 4-4 of Fig. 3, illustrating the disposition of the various elements of the lock mechanism;

Fig. 5 is a transverse sectional view, on the line 5-5 of Fig. 3, illustrating details of the coin-controlled mechanism;

Fig. 6 is an elevational view of a portion of the locking and coin-controlled mechanisms, shown in an intermediate position of coin-actuation;

Fig. '7 is a view, similar to Fig. 6, illustrating further operation of the locking mechanism;

Fig. 8 is a diagrammatic view of the alarm circuit, illustrating the incorporation thereinto of the lock and the printing mechanism, the lock casing being shown diagrammatically to illustrate the cooperation of the casing and elements therein with the circuit, and

Fig. 9 is an across-the-line wiring diagram for the circuit.

For purposes of convenience in installation,

the relays and other elements of the system may be housed and contained within a casing In, preferably of metal or any other suitable material. Housing the elements in this manner, and locking the casing against unwarranted access to the parts contained therein, is desirable to prevent interference from within the guarded premises with the operation of the electrical apparatus to be described. Within the casing may be supported a panel !2 upon which is mounted clock-work M. A spindle I6, driven by the clockwork, causes rotation, through suitable gearing I8, of minute and hour wheels 20 and 22, respectively mounted on the same shaft and permitted relative movement. supported in front of the panel, and hands 28 and 38, one carried by spindle l6 and the other by a suitable spur shaft 32, driven from gearing l8, indicate on the dials the hour and minute at which the wheels are set to print, as will be described. The minute wheel is permitted movement and thus can be used to set both hour and minute wheels and hands, the hands indicating the particular setting.

Also, driven from this spindle, by suitable gearing 34; is a spur shaft 36, to which is secured a roll 38. A tape 4!], fastened to the roll, is caused thereby to move past the printing point 42, being guided by means of rollers M and from a supply rollerJl-B. Suitable friction devices may be utilized for retaining tape 40 in tension in its movement past the printing point.

Assembled directly beneath wheels 20 and 22 is anelectroma'gnet consisting of a pair of solenoid coils 52, retained in spaced apart relationship by a bracket 54 by which they are sup ported from panel [2. The bracket and a crossrace 56 at the lower ends of thesolenoidsform guides for a plunger 58, the lower end of which is secured to an armature 66. Guide pins 62, extending from the armature and extending within the bores 64 of the solenoids, serve to retain the armature in position for movement in a predetermined plane so that an impact head 66, at the upper end of the plunger, may be directed properly toward the tape and wheels 20 and 22. When the solenoids are energized, plunger 58 Will be driven upwardly, and. causeimpact of head 66 against the tape and wheels to make an imprint upon the tape. Suitable inking rollers 68 may be retained in contact with the wheels by means of springs Hi to. provide a suitable medium for making legible the imprint on the tape. While the continuous rotation of roll 38 by gearing 34 is illustrated, it is, of course, to be understood that Dials 24 and 26 are also any other well-known method of operation may be used.

Suitably disposed within the casing are a plurality of relays 12, 14 and 16. Relay 12 has a pair of armature blades 18 and 80, properly insulated from each other. The armature blades 18 and 80 have individual sets of contacts, the sets being indicated as 82 and 84, and 86 and 88, respectively. The contacts are connected in the circuit in the manner to be described hereinafter. It is to be understood that the particularly disclosed construction of these relays may, for certain elements of the invention, provide an alternative form for use in eifectuating the results intended. Each of the relays includes a magnet coil 90, from which armature blades such as 18 and 80 fall away by gravity against contacts such as 82 and 86, when the coil is deenergized. When the coil is energized by current flowing therethrough, the armature blades are raised against such contacts as 84 and 88. If desired, a spring 92 may be provided to assist gravity in bringing the armature blades against such contacts as 82 and 86.

Lock 94 includes a casing 95, shaped to house the elements therein and also, in a suitable instance, to provide prongs 98 for engagement with a suitable strike (not shown), with which will engage the bolt I of the lock. Across the upper end of the casing may be extended a plate I02; in this plate, there may be formed one or more spaced apart slots I84. When all the elements of the lock and of the related switching and coincontrolled apparatus have been properly assembled in the casing, and a pair of screws or similar headed protuberances I06 formed on the door or similar member (not shown) with which the lock is to be associated, the large ends I08 of the slots are engaged over the headed portions, after which the lock body is slid downwardly along the door until the bodies of the protuberances are seated within the small ends H0 of the slots. Securing means such as a screw may then be passed through the back wall 112 of the casing to anchor the casing fixedly to the door on which it is to be supported. Such securing means is made accessible through an opening II 4 in the front wall N5 of the casing, which opening may be closed and guarded in the manner to be described.

The particular type of locking elements II8 here shown are not intended to be absolutely essential parts of the invention and, therefore, need not be specifically described. The elements should include a means similar to pin I20 for engagement with a lever I22, which pin, by its movement as the elements move to the various positions for looking or unlocking, effects rocking of that lever. In the instance shown here, elements I58 reciprocate; pin I20, for proper cooperation, is secured to, or made an integral part of, the bolt of the elements, and is positioned to engage and be retained within a slot I24 in the end of the lever. The lever is pivoted upon a boss I25 extending from wall I It; as the elements reciprocate, the lever will be caused to oscillate about its pivot as an axis. The lever, through its pivot, is grounded electrically upon the casing; being of metal, it provides a movable electrical connection between the casing and contacts I28 and I38 set in a backing piece I32 of suitable insulating material, retained spaced away from wall H6 to permit access thereto of suitable conductors. In the position shown in Fig. 3, the lever rests upon a dead contact I34, in this case not made a part of any circuit.

Bolt I00 is shown to have a projection I36. Pivoted upon a pin I38 secured to wall I I6 is a lever I40, shaped like a reversed 1; the short arm I42 of this lever, by means of a spring I44, fulcrumed upon a pin I46 extending from wall I I6 and anchored at I48 to a plate I49 rigidly associated with the casing so as to engage against the angularly bent arm I80 of lever I48, is forced up against the bolt and tends to engage against the bolt and behind projection I36 and thus to prevent projection of the bolt to locking position. To release lever I40 from this engaged relationship, in order that the locking elements then be able to function both as a lock and also for the purpose of switching the several related circuits into operation, a coin-controlled mechanism I52 is provided.

The coin for the operation of mechanism I52 is associated with the apparatus by insertion through an opening I5t, formed through front wall H6. An arcuate passage I56 in a member I58 is in direct communication with opening I54. Member I58 may be made up in any desired manner, as, for instance, as a die casting. This casting preferably is securedto wall I I8 so that the arcuate groove I60 together with the wall defines passage I56. The passage is defined in its width to permit only a definite coin PS2 to move therein.

Downwardly along the passage from opening I54 and in the wall I54 of the passage, is a slot 558 forming a guideway for a sliding pin I68. By means of a spring I10, fulcrumed at I12 and bearing, at its ends, against one side wall I14 of the casing and against a block I16 integral with or otherwise secured to pin I68, the pin is normally positioned to extend into passage I56.

Carried by a post I18, extending through wall I I6 and therein rotatably mounted, and thereby pivotally mounted relatively to member I58 through which post I18 extends, is a plate I80.

The manner of mounting the plate will cause its 7 movement to be concentric with passage I56. Encircling pivot post I18 is a spring I82, anchored at I12 to the casing; the normal action of the spring is to compel plate I88 to assume a position in which the plate abuts side wall I84 of the casing. The plate has an. embossed portion I86 for fitting within passage I56; the end portion I88 of portion I86 is shaped to conform substantially to the shaping of the coin intended to be deposited in the passage.

On attempted oscillation of the plate by means of a knob I98, disposed upon and secured to the outwardly extending extremity of post I18, if a coin has not been deposited Within the passage, portion I86 will halt downward movement of the plate-at an intermediate, inefiective stage by engaging with pin I88. If, however, prior to rotation of knob I90, a coin had been deposited, the coin, after seating within the end portion I88, would be forced onwardly by the embossed portion I86 to engage the end of pin I68. By reason of the curvature of the coin, the pin would be cammed out of the passage; the coin would .be released then to continue on its way, by gravity, to a suitable receptacle, such as provided by chamber I92. By driving pin I68 out of the passage, the plate is released for further movement as stopping engagement between portion E86 and the pin is eliminated, even after the coin has passed to its receptacle. The depository chamber I92 may be the same as that through which was applied the screw to retain the casing, the opening being sealed by a plate I94, secured,

by suitable-locking means I96, to front wall. I ['6 to permit only warranted access to that chamber and the locking elements.

Now that the plate has passed the barrier normally interposed by pin I68, a projection I98 from the plate will engage against arm I56, rocking lever M6 to move arm M2 out of engaged relation to projection I36. When the plate has been moved to this position, as shown in Fig. 6, another V-shaped lever 266, pivoted at 262 upon the casing, will, by gravity, and by the action of a suitable spring 266, coiled about the pivot 262 and engaging the lever and the casing, be caused to move downwardly so that its arm 266 will engage against a shoulder 266, formed at the end of plate I86. Plate E86 is thus latched against return until certain further manipulations of the lock elements have occurred. a

The lock-mechanism is now free for actuation to locking position. By insertion of a key into a suitable receptacle of any particular construction, provided for that purpose, and then turning the key, the bolt will be projected into the associated strike. Projection I36 includes, in addition to the vertical section 2 l 6, against which arm I42 abuts when properly positioned, a horizontal shelf 252 upon which another arm 2M of lever 266 extends. As the bolt mechanism is advanced by the key, this shelf engages arm 2%, gradually lifting it until, at the extreme of movement of the locking mechanism, arm 266 will be released from its coaction with shoulder 266. Spring I62 will then return plate I66 to its normal relationship in abutment with wall I86;

- Lever I40 in the meantime, is retained in lowered'position by the bottom of shelf M2; however, with the return of plate I86 to normal position, the relation of lever and locking mechanism is such that, if the locking mechanism be now shifted back to unbarring position, projection I36 will ride free of arm I42, which immediately will be snapped into position behind the projection I36, as shown in Fig. 3, and again prevent any movement of the locking mechanism until a coin has been deposited, or the latching lever M6 released in some other manner.

Lever mechanism to barring position, has been caused to ride over contacts I28 and I30, and, in movement of the locking elements to unbarring position, to ride back over contacts I 36 and I 36, in

both cases, in the order indicated. Certain results are obtained, by this progressive contacting,

, in connection with the alarm system tobe described.

The circuit, as illustrated, operates on closed circuit principles, although, in certain of its details, the invention may find application for open circuit operation. In this case, a power source 2I6 of any particular character, such as a battery, is provided. A switch 2I8, operated by suitable key controlled means, and connected directly with one side of the battery by a conductor 226,

may be assembled on casing ID or at any other suitable point. By another conductor 222, the switch sup-plies current to a contact post 224 upon a panel 225 within casing ID, to which a section 226 of the house protective circuit 226 is connected. Switch 236, illustrated in this section, is intended to be illustrative of such devices as the circuit breaking spring-switches customarily positioned at closures, and especially at the door upon which lock 94 is assembled.

The other end of section 226 is connected to I22, during movement of the locking another'contact'post 232 on the panel from which a conductor 234 leads to the core 236 of relay I2. Another conductor 238 returns from this coil to be connected to a contact post 240 upon the panel to which the other section 242 of the house protective circuit is connected. The other terminal of this section is at a contact'post 246 on the panel from which a conductor 246 returns tothe battery. Therefore, upon closing switch 2I6, relay I2 is immediately energized to lift ar mature blades 268 and 256 away from their respective contacts 252 and 256. No other portion of the circuits is so energized unless some defect exist in the house protective circuit. The alarm circuit is not made available for the initiation of an alarm at this time. I

Now, when the party closes up his establishment and desires to lock the door upon which lock 96 is assembled, after first closing switch 258, he may pass through the door without the F initiation of an alarm since that circuit is not at that time operative since lever I22 rests upon dead contact I36. If, at the time he closed switch 2I8, there should be any defect in the house protective system, that is, in the circuit energizing relay I2, current would flow from battery 2I6 through conductor 226, switch 2H3, conductors 222 and 256, buzzer 256, conductor 266, contact 25 armature blade 256, which, at this time," would be in lowered position, due to deenergization of relay I2, conductor 262, and. back to the battery through conductor 246.

Finding the circuit to be in proper order, the party closes the door, inserts his key into the lock, and rotates, orin any other manner, causes movement of, the lock elements so that lever I22 will be caused to movefrom its dead contact I36, riding over contact I23 and coming to rest on contact I30. Lever I22, by means of conductor .264, is connected to a break-switch 266, normally closing its circuit; but, by means of a push button, or by suitable key-controlled means, being caused to open its circuit. This switch, by a conductor 266, is connected to the battery. When lever I22 advances to contact I28, current will then flow from the battery through conductor 268, break-switch 266, conductor 264, lever I22, contact I23, conductor 216, coil 52, and back to the battery through conductor 212. Since this coil is that of the time-recording magnet, armature 66 will be caused to rise and head 66 brought into abutment withthe tape and wheels for making an imprint upon the tape.

Now lever I22 leaves contact I28 and passes to contact I36. Current will now flow from the battery through conductor 268, switch 266, conductor 264,.lever I22, contact 36, conductor 214, through coil 2T6 of relay I4, and conductors 218 and 2'52, back to the battery. Armature blades 286 and 262 are raised by energization of relay l4, and are brought into contact with their respective contacts 286 and 266. Relay M will now be constantly energized without relation to the association of lever I22 with contact i651 as current now flows from the battery through conductor 266, switch 266, conductors 266 and 268, armature blade 282, contact 2536, conductors 296, 222 and 262, armature 286, contact 254, conductor 294 and 2M, coil 276, and conductors 2'56 and 212, back to the battery.

Also, the house circuit will be constantly energized by this arrangement as power will be obtained from the battery through the constantly energized conductor. 222. The entire circuit is now energized, and, as will be shown, an alarm will be given in case any interference takes place that breaks the house circuit or crosses any associated portions thereof.

Even if the operator should forget to close switch 2I8, no ill eifects will obtain, as the energization of the circuits will be completed when the lock is moved to closed position. The printing will take place in exactly the same manner, that circuit being wholly independent of switch 2H3. In like manner, energization of relay i4 will take place independently of switch 2l8. Immediately upon energization of relay l4 and consequent energization of the house circuit', armature blades 248 and 250 will be lifted clear of their contacts to prevent any possibility of an alarm. In such operation, however, if any part of the house protective system be defective, the alarm apparatus will become effective, as will be shown, and the operator will, of necessity, have to return within the enclosure, discover the nature of the failure of the system, and remedy it before he will be able to set the alarm and leave the premises properly protected. Of course, this will necessitate the deposit of an additional coin in the lock in such case where the coin-controlled operation is utilized. In any case, he will not be able toleave the premises without having been forewarned as to the status of the system.

When a break, or a cross across associated parts, occurs in the house circuit, relay i2 is deenergized, as can easily be understood, current not flowing at all through the circuit because of the break, or being short-circuited from the relay by the cross. In such case, armature blades 248 and 252 rest upon their respective contacts 252 and 254.

Buzzer 258 will operate to warn anyone within the enclosure to whom the sounding of alarm 2%, which may be located in any desirable position, as, for instance, on the exterior of the building protected, may be inaudible.

For the energization of alarm 298, one path for current from the battery will be through con-- ductor 2E8, switch 226, conductors 264 and 288, armature blade 282, contact 286, conductors 232 and 222. Current also may flow, if switch 218 is closed, directly from the battery to conductor 222. 'Then the circuit continues through conductor 292, armature blade 23!], contact 284, conductors 294, 2'54 and 298, armature blade 300 of relay it, its associated contact 302 upon which it will be resting at that time, conductor 304, con tact 252, armature blade 248, conductors 306 and 213, coil 52 and conductor 2'12 to the battery, thus energizing the printing magnet for making an imprint upon the tape as to the time at which interference with the circuit was effected.

Immediately that the printing magnet has been so energized, contacts 308 and 3!!! are brought together by armature 60, upon which one of the contacts is mounted. Contact 3!!) may be mounted upon, and preferably insulated from, the cross-brace 55. By association, in this manner, the following circuit is completed. Current now flows from the battery through conductor 263, switch 266, conductors 254 and 282, armature blade 282, contact 286, conductors 2%, 222, and 292, armature blade 280, contact 284,

conductors 294, 214 and 352, contacts 3!!! and 308,

armature blade 60, conductor 314, coil 3I6 of relay l5, and conductors 3l8, 218 and 212 to the battery. Now relay 18 is energized, lifting armature blades 3% and 329, breaking the connection between armature blade 320 and contact 302, and making connection between that armature blade and contact 322.

Relay 16 is now continuously energized by current flowing from the battery through conductor 2633, switch 286, conductors 264 and 288, armature blade 282, contact 286, conductors 290, 222 and 292, armature blade 28!], contact 284, conductors 234, 2'i4 and 228, armature blade 3110, contact 322, conductors 324 and tilt, coil 3H5, and conductors 3H3, 2'18 and 2l2, back to the battery. The breaking of the circuit between armature blade 32!? and contact 302 will deenergize coil 52, permitting its armature 6G to drop and be ready for the next operation of the time-recording mechanism.

Simultaneously with the continuous energization of relay it, the other armature blade 320 has made connection with contact 322. The alarm circuit is now energized by current flowing along conductor 228, switch 266, conductors 264' and 288, armature blade 282, contact 286, conductors 292 and 328, armature blade 320, contact 325i, conductor 332, alarm 296, and conductor 332, back to the battery.

When the person apprised of the alarm arrives at the enclosure to open it, he must move lever l22 away from contact I and over contact I28 in order to open the lock. By such operation, the printing apparatus will be energized and again record the time at which such passage was made. The alarm, however, will continue to ring until push button of switch 256 is manipulated to break the circuit leading from the battery through the holding circuit of relay l4 which also will deenergize the holding circuit of relay it. At the time this is done, of course, switch 2 l8 may also be opened.

It is to be noted that if vandals should destroy the door and thereby destroy the circuits connected with the lock and lever [22, they would, in no way, make inoperative the alarm circuit.

In such case where the house circuit is found to be defective in either one of its branches, that is, a break is found to be present either in section 226 or in section 242, switches 334 and 336 may be provided. These switches are for cutting out of circuit either one of the house protective sections. They may also be used, in conjunction with switch H8 and buzzer 258, for testing, to determine in which of the sections such break is present. After that defect is located, one of the switches may be left effective so that the circuit may be operative at least for protection against a break until repairs can be made. In outlying regions, assistance sometimes cannot be secured for a considerable period, and the protection to be secured from a single side of the circuit is more desirable than no proreadily understood by those skilled in the art that the invention also has application to open circuit operation.

It is to be understood that the coin-controlled mechanism may be used in conjunction with alarm circuits without the necessity for cooperation either of the time recording mechanism or of the locking mechanism, or both of them. In

this relation, the necessity for'dealing with accounts has been eliminated. The proprietor determines for himself when he desires protection from this system. Merely by depositing a coin and then manipulating the mechanism, he places in circuit the alarm apparatus; he cannot again initiate operation of the system or use the lock until he has shut down the apparatus and again deposited another coin.

The locking mechanism provides a means for governing the passage through an exit and for recording definitely any lawful operation of the lock while, at the same time, controlling such lawful operations by its coin-controlled mechanism.

Many other changes could be eifected in the particular apparatus designed, and in the methods of operation set forth, and in specific details thereof, without substantially departing from the invention intendedto be defined in the claims, the specific description herein merely setting forth illustrative operative embodiments carrying out the spirit of the invention.

What is claimed as new and useful is:-

1. In combination with an area to be protected and having exits therefrom, means for guarding the exits against unwarranted passage therethrough, means for initiating an alarm upon attempting to effect passage past the guarding means, one of the exits having a door, means for locking the dooragainst passage therethrough, said locking means, comprising means when actuatedto locking position, for making the alarm-initiating means effective, circuit means for indicating the timewhen the door was locked and the alarm-initiating means made effective, and means to prevent the lockingmeans from being operated through more than a single cycle from unlocked position to a position where it retains the door locked, and thereafter'to a position where it is no longer efiective to lock the door, whereby, in such cycle, the door may be retained locked for only a single continuous period.

" 2. In combination with an area to be protected and havinglexits therefrom, means for guarding the exits against unwarranted passage therethrough, means for initiating an alarm upon attempting to effect, passage past the guarding meansy'one of the exits having a door, means for locking the door against passage" therethrough, said locking means, comprising means when actuated'to locking'position, for making the alarm initiating means effective, circuit means for indicating the time when the door'was locked and the alarm initiating means made' efiective, and means to releasethe locking'means so that, for a single actuation of the releasing means, the locking means maybe operated but once through a single cycle from unlocked position to lock and then" again unlock the door before "the locking means is made inefiective" until a fective, and coin-controlled meanstorelease the 7 locking means so that, for a single operation of the coin-controlled means, the locking means may be operated to door-locking position and to make the alarm initiating means operative but once as a part of a single cycle at the end of which cycle the locking means is again made ineffective until the operation of the coin-controlled means.

4. In combination with a means of ingress to and egress from an area, means for controlling such ingress to or egress from the area, means for retaining the controlling means in barring position, time recording meansyand means for protecting the area against unwarranted ingress to or egress from the area, the time recording means comprising a circuit including an electromagnetic device which, upon such unwarranted passage into or from the area, cause recording of the time of such'passage and then cause the protectingmeans to initiate an alarm, the retaining means, when made operative to retain the controlling means in barring position, having means simultaneously to energize the protecting means.

5. In combination with a means of ingress to and egress from an area, means for controllingsuch ingress to or egress from the area, means for retaining the controlling means in barring position, time recording means, and means for protecting the area against unwarranted ingress to or egress from the area, the time recording means comprising a circuit including an electromagnetic device which, upon such unwarranted passage into or from the area, causes recording of the time of such passage and then causes the protecting means to initaite an alarm, the retaining means, when operated to position, to retain the controlling means in barring position, having means active during the same operation to cause energization of the protecting means and to make the time recording means operative for recording the time or" such energization.

6. In combination with a means of ingress to and egress from an area, means for controlling such ingress to or egress from the area, means forretaining the controlling means in barring position, time recording means, and means for protecting the area against unwarranted ingress to or egress from the area, the time recording means comprising a circuit including an electromagnet device which, upon such unwarranted passage into or from the area, causes recording of the time of such passage and then causes the protecting means to initiate an alarm, the record being made and completed before the alarm is initiated.

'7. In combination with a means of ingress to an egress from an area, means for controlling such ingress to or egress from the area, means for retaining the controlling means in barring position, time recording means, and means for protecting the area against unwarranted ingress to or egress from the area, the time recording means comprising a circuit including an electromagnetic device which, upon such unwarranted passage into or from the area, causes recording of the time of such passage and then causes the protecting means to initiate an alarm, the record being'rnade and completed before the alarm is initiated, the retaining means, when operated to position to retain the controlling means in barring position, having means active during the same operation to cause energization of the protecting means and to make the time recording means operative for recording the time of such energization.

position, time recording means, and means for protecting the area against unwarranted ingress to or egress from the area, the time recording means comprising a circuit including an electromagnetic device which, upon such unwarranted passage into or from the area, causes recording of the time of such passage and then causes the protecting means to initiate an alarm, the record being made and completed before the alarm is initiated, the circuit elements comprising means to re-set the recording means for further recording operation immediately that the alarm has been initiated.

9. In combination, a protective circuit, a lock for retaining closed a portion of an area-protected by the circuit, an alarm-creating device, timerecording means, means to energize the circuit, means to operate the time-recording means when the lock is actuated to retaining position, and means for making the alarm-creating device immediately effective to create an alarm when the conductivity of the protective circuit is changed, the lock having means for causing the energization of the eiTective-making means when the lock is actuated to retaining position, the time-recording means being in circuit to be energized for recording the time of such change of conductivity and having means thereupon to energize the effective-making means.

10. In combination with an enclosure to be guarded against unauthorized entry and exit therefrom, the enclosure having exits therefrom, a closure for one of the exits, an electrical protective circuit disposed about the enclosure and having a portion thereof associated with the closure, means for retaining the closure to prevent passage through the exit guarded thereby, recording means, indicating means, means for energizing the recording means when the retaining means is actuated to effective or ineffective positions, means for energizing the recording means when the protective circuit is interfered with, means for energizing the indicating means when the protective circuit is interfered with, and means to limit actuation of the retaining means to one complete cycle from open position to closed position to open position, the retaining means, when actuated to closed position, causing continuous energization of means to retain the various means electrically energized independently of the subsequent positions of the retaining device or its condition, the actuation limiting means being coincontrolled, the retaining means including a lock bolt, the actuation limiting means including a device for restraining the bolt against movement, the coin-controlled means operating to make the restraining device inoperative,

11. In combination with an enclosure to be guarded against unauthorized entry and exit therefrom, a closure for one of the exits, an electrical protective circuit disposed about the enclosure and havng a portion thereof associated with the closure, and means for retaining the closure to prevent passage through the exit guarded thereby, and means separated from the closure-retaining means for retaining the electrical protective circuit continuously energized after the retaining means has been actuated to closed position and independently of the subsequent operation of the retaining device or its condition.

12. In combination with an enclosure to be guarded against unauthorized entry and "exit therefrom, a closure for one of the exits, an electrical protective circuit disposed about the enclosure and having a portion thereof associated with the closure, means for retaining the closure to prevent passage through the exit guarded thereby, time-recording means, means for indicating a change of conductivity of the electrical protective circuit, the protective circuit having means for causing energization of the time recording means, upon change of conductivity of the protective circuit, said indicating means including means to make the indicating means efiective, when the electrical protective circuit is operative and then the closure is opened, means for supplying electrical energy for the electrical protective circuit and the conductivity-change indicating means, the retaining means having means for making the supplying means efiective for that purpose when but not until the retaining means has been actuated to closure-retaining position and for energizing the time-recording means, the supplyingmeans-efiective-making means remaining efiective thereafter independently of the further condition of the closure-retaining means, the energizing means for the time-recording means being made effective when the retaining means is actuated to closure retaining or closure-releasing position and means to prevent a subsequent actuation of the retaining means to closure-retaining position when the retaining means has once commenced movement to that position unless the preventing means has first been re-set.

13. In combination with an area to be protected and having exits therefrom, means for guarding the exits against unwarranted passage therethrough, means for initiating an alarm upon changing the conductivity of the guarding means, one of the exits having a door, means for locking the door against passage therethrough, the locking means having means to make the alarm-initiating means effective when the locking means is actuated to locking position, means for printing the time when the door was locked and the alarminitiating means made effective, and means to prevent repeated actuation of the locking means for effecting actuation of the printing means at each actuation of the locking means without first making the alarm-initiating means inoperative.

14. In combination with anarea to be protected and having exits therefrom, means for guarding the exits against unwarranted passage therethrough, means for initiating an alarm upon changing the conductivity of the guarding means, one of the exits having a door, means for locking the door against passage therethrough, the locking means having means to make the alarm-initiating means elfective when the locking means is actuated to locking position, means for indicating the time when the door was locked and the alarminitiating means made efiective, and coin-controlled means to permit the locking means to be operative for a single continuous period to retain the door locked and thereafter to make the looking means ineffective. v

15. In combination with a means of ingress to and egress from an area, means for controlling such ingress to or egress from the area, means for retaining the controlling means in barring position, time-recording means, and means for protecting the area against unwarranted ingress to or egress from the area, the time-recording means, upon such unwarranted passage into or from the area, having means to record the time of such passage and to initiate an alarm so that the record ismade and completed before the alarm is initiated, the means for initiating the alarm including means to re-set the recording means for a further recording operation when the alarm is initiated, the retaining means, when made operative to retain the controlling means in barring position, having m'eanssimultaneously purpose, means toenergize' the electromagnetic device when the circuit is completed on changing "the conductivity of the protective circuit, and means operated by the electromagnetic device when so energized to energize the electromagnet for making the alarm circuit effective.

17. In combination with a protective circuit for an area to be guarded, means for completing a circuit when the conductivity of the protective circuit is changed, a clock device, an alarm circuit, an electromagnetic device cooperating with the clock device for indicating particular time periods when the electromagnetic device was eneregized for that purpose, an electromagnet governing the alarm circuit and the circuit of the electromagnetic device, means to energize the electromagnetic device when the circuit is completed on changing the conductivity of the protective circuit, and means operated by the electromagnetic device when so energized to energize the electromagnet for making the alarm circuit efiective and to de'energize the electromagnetic device.

18. In combination with a protective circuit for an area to be guarded, means for completing a circuit when the'conductivity of the protective circuit is changed, a clock device, an alarm circuit, an electromagnet governing the alarm circuit, a printing member cooperating with the. clock device for actuation against the clock device to record particular time periods, an electromagnetic device for actuating the printing means when the electromagnetic device is energized, means for energizing the electromagnetic device when the circuit is completed on change of conductivity of the protective circuit, and means, actuated when the electromagnetic device is energized to drive the printing member against the clock device, to make the alarm circuit effective.

19. In combination with a protective circuit for an area to be guarded, means for completing 'a circuit when the conductivity of the protective circuit is changed, a clock device, a printing member cooperating with the clock device for actuation against the clock device to record particular time periods, an alarm circuit, an electromagnetic device for actuating the printing means when the electromagnetic device is energized, an electromagnet governing the alarm circuit and the circuit of the electromagnetic device, means for energizing the electromagnetic device when the circuit is completed on change of conductivity of the protective circuit, and means, actuated when the electromagnetic de vice is energized to drive the printing member against the clock device, to make the alarm circuit effective and to re-set the printing member for a next succeeding printing operation.

BENJAMIN GOLDSTONE.

CERTIFICATE OF CORRECTION,

Patent No. 2,101,058, December 7, 19 7.

BENJAMIN GOLDSTONE,

It is hereby certified that error appears in the printed specification of the abovenumbered patent requiring correction as follows: Page 2, first column, line 59, for "form" read forms; and second column,-1ine l7, after "circuit" strike out the comma and insert instead a semicolon; page 6, first column, lines 52, 51 and 70, claims 1, 2and5 respectively, after "means" first occurrence, strike out the comma and insert the same after "means" second occurrence; and second column, line 55, claim 5, for "initaite" read initiate; line 56, same claim, after "position" strike out "the comma; line 50, claim 6, for the syllable "magnet" read magnetic; line 57, claim'{, for "an" before "egress" read and; page 7, first column, line 66, claim 11, for "havng" read having; and second column, line 10, claim 12, for "time recording means," read time-recording means; line l5, same claim, after "effective" strike out the comma; line 28, same claim 12, for "closure retaining" read closure-retaining; and after "position" insert a comma; and that the said Letters Patent should be readwith these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this lst day of March, A, D. 19580 Henry Van Arsdale, (Seal) Acting Commissioner of Patents.

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