US1279344A - Burglar-alarm system. - Google Patents

Description

S. B. HESS.

BURGLAR ALARM SYSTEM.

APPLICATIOR FILED JUNE 3.1915.

WITNESS Patented Sept. 17, 1918,

2 SHEETS-SHEET 1.

IN VLN Tim.

A TTORNE Y s'nvron B. HESS, or NEW YORK, N. Y.

BURGLAn-ALARM SYSTEM.

Specification of Letters Patent.

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Patented Sept. 17, 1918.

Application filed June 3,1915. Serial No. 31,831.

To all whom it may concern:

, Be it known that I, SIMON B. Hnss, a citizen of the United States, residin in New York city, in the county of New ork and State of New York, have invented certain new and useful Improvements in Burglar- Alarm Systems, of which the following is a specification.

This invention relates to burglar alarm systems of the class employed for the protection of localized risks, such forexample, as bank vaults, stores, lofts, buildings or apartments in residential districts.

Various systems of this class are at pres-' ent in use, in most of which means are provided whereby an alarm will be started in operation upon interferencewith the protected structure. The alarm itself is as a rule placed within ahousing included in the protective circuit and arranged so as to start the signal in operation upon interference therewith.

Similarly the instruments controlling the protective circuit as well as the alarm circuit in systems of this class are of necessity inclosed within the protected structure.

It is an object of my invention to provide a system simple in construction and economical of installation that will provide novel means to avoid the possibility of defeating the system circuit controlling apparatus, for example, by an unauthorized person who may be con cealed Within theprotected structure and may at an opportune time seek to disconnectthe system.

It is another object of my invention to provide a system that cannot be defeated by the'men that installed it.

It is still another object of my invention to provide a system any of the circuit controlling devices or the I alarm housing are tamperedwith while the system is normally set for operation, certaln important circuit wires will be ruptured and thereby entirely eliminate the possibility of anyperson, authorized or unauthorized, from restoring the system to nor mal, or silencing the signal.

It is still another object of my invention to provide systems wherein the alarm signal will operate continuously until the source of energy with the circuit controlling apparatus by anyperson while said apparatus is in its normally set status.

" of the main 'Fig. 7 the jack detached.

by tampering with theso arranged, that when is exhausted, upon interference .In this event the alarm v by any one, even grammatic view showing the complete'sys tem.

Fig. 2 is a housing alarm and two of the frame portions of the auxiliary housing for the alarm, in open position with the board broken away to show more clearly lay, one of the frame portions being connected to the main housing by a tubular member.

Fig. 3 is a perspective view of one of the frame portions shown in Fig. 2 but looking at the other side of the same.

Fig. 4 is a. a perspective view of a third frame portion which together. with the two frame portions illustrated in Fig. '2 form.

the complete auxiliary housing.

. Fig. 5 is a view of a jack and plug for connecting two portions of a conductor in the tubular member between the main housing and the auxiliary housing of the alarm; Fig. 6 illustrating the plug detached; and

Fig. 8 illustrates a plug and jack for connecting two circuits,

the plug and jack being shown in closed or circuit making position.

Fig. 9 is a fragmental View of the plug detached.

Fig. 10 is a diagram illustrating a-sysperspective view showing part which contains the the connections to 'theretem in which the plug and jack shownin Fig. 8 has special application.

In the diagram illustrated in Fig. 1, the I heavily indicated wires 11 and 12 and their continuations constitute the protective circuit and are connected to any suitable source of power such as the generator 13, these ' wires 11 and 12 being connected to the guarded structure understood to be located at A, and passing through the main protective housing and the auxiliary housing of the system.

The main protective signal housing comprises substantially a protected box B in which a signal receiving device or audible alarm is located, and a protected box C in which the controlling mechanism of the I audible alarm is located. I

The protected'box C is connected by a tubular member D with; the frame portion E .of an auxiliary housing, the auxiliary housing comprising essentially'three frame por-" structure and the box 'tionsw the frame portion E aforementioned and the frame portions F and G, illustrated in Figs. 2 3 and l, respectively.

The box B usually embraces a base mem" ber 14:, on which the audible alarm such as the gong 15 is located. For inclosing the gong there is provided an inner casing 16 adapted to be secured to one side oi said base member preferably leaving a border 17 of said base member 141 free around said inner casing 16. To inclosc such casing 16 and secured to said base member, there is provided an outer casing 18 so that before the inner casing 16 in whichthe gong is located can be opened or destroyed, the outer casing 1.8 must first be opened.

The box C is constructed somewhat similar to the box B it embracing a casing it) closed on. top, bottom and three sides, and having an inner door or closing member 20 disposed between the top, bottom and two sides somewhat removed from the outer edges of such top, bottom and two sides, and an outer top or closing member 21 disposed similarly and concealing and protecting the inner door or closure member 20 so that be fore such inner door can be opened. the outer door 21 must have been opened, the alarm controlling mechanism being disposed in said casing inside said inner door menr her 20.

The frame portions E, l and G when in closed position are secured to one another "face to face with the frame portion F between the frame portions and G, the arrangement of supportingthe several frame ortions being such that the frame portions G or F will be the first to be removed the frame portion E preferably being secured against the wall of a structure.

In practice I find it desirable to place the box B on the outside wall of a protected C directly in the rear of box 13 on the inside of saidwall within the protected. structure and provide a section of the usual electric conduit (not shown) to connect the two boxes--said conduit providing a pathway for the circuit wires of the system between the circuit controlling mechanism in box C and the box B, so that all conductors are effectively concealed and pros tected from mechanical injuryand surreptitious tamperin The wiring is as follows:

The main wire 11 beginning at the generator 13, after passing through the guarded structure A passes the opening then out through the opening 23 in the box (I and thereupon through the opening 2 1 in the border 17 of the base member. 14s to the ack arm 25 which is spaced apart from the jack arm 26 to receive a plug and disposed on one side of the casing 16, the W111? 11' connecting the jack arm 26 .with the jack arm 27 on the other side into the'box. C through ot' the casing 16 which jack arm 27 is spaced from the jack arm 28 to receive a second plug. the jack arm being connected by a wire 11 which passes out through the opening 29 in the border 17 of the base member 14E disposed on the same side of the casing 16 as the jack arms 27 and 28 are disposed, thereupon into the box C through the opening 30 and then out again through theopen iug 31 which is in communication with the conduit or tubular member D illustrated in Fig. 2. and thereafter through several contacts hereinafter to be described to the relay It.

The main wire 12 also beginning with the generator 13 after passing. through the guarded structure A passes 'into the box C through the opening thereupon through an opening 33 in the door member 20 to the jack arm 32 which is spaced from a jack arm 33 to receive. a plug, the wire 12 connected to. the jack arm passing through an opening 3-4 in the door member 20 into the box C and thereupon out through theopening 23 and pa 'allel with the wire 11 through the opening 24 to the jack arm 25 adjacent to the jack am 25, the .jack arm 25' being spaced apart from the jack arm 26 disposed adjacent to the jack arm 26, the wire 12 e. tending parallel to the wire 11 and connecting the jack arm 26 with the jack arm .27 disposed adjacent to the jack arm 27 which jack arm 27 is spaced apart from the jack arm28 disposed adjacent to the jack arm 28. Connected to the jack arm 28, there is provided a wire 12 which extends parallel to the wire 11 and connects with the relay R- after passing through several contacts similar to the wire 11. The aft-nementioned wires 11 and 12 with their continuations when properly connected form a circuit whereby the relay R- is energized by the generator 18.

The casing 18 is in the nature of a cover -for the casing 16 and is secured to the base member 14 by any suitable means but preterably permitting ready removal. ()n the inside of the casing 18,' there are provided two conductive plugs 35 and lli properly insulated from the casing 18 and each baring an insulated portion 37 in its body portion to form two contacts. The plugs 35 and 36 are disposed to cooperate with the jack arms on the base member 14-. the arrangement being such that when the casing 18 is in. closed position, the plugs will engage the tour arms of the jacks so that'the wire 11 will permitthe passage of current from the wire 11 to the wire 1 and the wire 12 will permit the passage of current from the wire 12. In l igs'. 8 and ll, an enlarged view of the plug 35 and the jack arms coiiperab ing therewith is shown. In the plug 35 there are provided two pairs of recesses 49 and 50, the recesses 49 being disposed on -of jack arms may engage.

ACZOD 31832 11 t nt one side of the insulated portion 37 and the recesses 50 on the other side of such insulated portion, the recesses of each pair being disposed on opposite sides of the plug so as to form an anchor into which a pair The; plug 36 and its cooperating jack arms are identical with the plug and jack arms just described and therefore the description is not Somewhat similar to this arrangement is the cooperation of the plug 38 with the jack arms 32 and the to the door member 21 and insulated therefrom, the door member 21 in the present instance being shown as hingedly connected at its lower end to the floor member 39 of the box C, and adapted to be locked at its upper end to the top piece 40. The location of the plug 38 on the door member 21 is such that when the door is closed, the plug will bridge the jack arms 32 and 33 so that the current may pass from the Wire .12 to the wire 12*. From the arrangement 7 be seen that when it is he gong or controllin member must first be of these plugs, it will attempted to get at t mechanism, the outer removed which will immediately break the 51. -In t "110111 17 cutting cit the current to the relay it and the main cover member wlll still be locked.

' continuous wire, are

I passes through the frame F frame portion E The frame portions E, F and G contain mechanism for setting-thealarm, the frame portion F supporting the relay R. The wires 11 and 12,

' provided with several contacts whereby the Wires may be interrupted when the frame portions are opened and by a Wire 1'1 which Fig. 3) and terminates in the contact 43. The contact 44 on the frame portion G which is'adapted to contact with the contact 43 is-connected by the wire 11 which is secured in a zigzag position to the frame portion G and terminates at its other end in the contact 45 which contact is adapted to contact with the contact 46 on the same side of the frame portion F on which the contact 43 is located, the contact: 46 being connected by the Wire 1 passing through the frame portion F to the relay R. The wire 12 on the other and terminates in the contact 47 on the which is adapted to contact with the contact 4. 8 on the frame porplug 38 being fixed illustrated each as one cuit for th obviously it casing. 16 and door 20 can be unt e gong is at rest, the armature 55 is spaced I from. the contact of th tact with the contact turn is cone wire 56ft ore is connected an electromagnet 63 disposed adjacent to the armature 55 and adapted to attract the same when it is energized. Thus when the switch 1s set so that the contacts 60 and 61 engage one another, and the relay R is deprived of its energ so that the armature 58 co'n tacts with the contact 57, the electromagnet 63 will be energized, attract the armature d throw it into contact with thecontact of the Wire 54, whereupon the cir e gong is energized. Thus or 21 removed, or any one of the frame portions-E, F and G displaced and the relay the audible alarm audible alarm 15, the system will thereby be so as to prevent the unlocking of the the door 20. The locking means of the casing- 16 comprises two brackets 65 secured to the alined set racket 66 being secured h casmg 16 and having W v ase member 14. casing 16 is a extending th 67 is not energized, the core ,68 being con- 66 will. lock said casing to said base member and thus prevent access to the gong 15. lhe locking" means of the door 20 is similar to the locking means 11st described, two brackets (39 being seeured to one of the walls of the box C and spaced apart to permit the bracket 70 to extend between them. The bracket 70 is attached to the door 20. The brackets and are provided with openings which aline with one another when the door 20 is closed. The top piece 40 of the casing C is provided with a solenoid 71. having a core 72 connected thereto so that when in suspcndtal position. when the solenoid not energized, it will extend through the al'ined openings of the brackets (39 and TO and lock the door 20 in closed position.

The winding oi? solenoid G7 is such that the current of the source of power is not suilicient for its cnergization and for this rcasom it is found desirable to connect the solenoid 67 with a contact indicated by the heavy dot at 73 with which contact 73 a public service main may be connected, the other terminal for such circuit being the contact 7a (Fig. 1) illustrated as disposed adjacent to the switch 54. The solenoid (i7 is connected by awire. 75 with a wire 76 which terminates in a contact 77 disposed on the side of the armature 55 which is opposite to that side on which the contact oi the wire 5% is located, the contact 77 being adapted to contact with the armature when the gong is at rest. The similar solenoid Tl is likewise connected to a contact 78 adapted to be connected with a public service main and by means of the wire 76 is connected to the contact 77. Disposed adjacent to the contact 61 there is a third contact 79 for the switch S adapted to contact with the contact 61 which contact can take place only when the contact (31 is out of. engagement with the contact 60. The contact 79 is connected by the wire 80 with the contact 81 disposed on the same side of the armatm'e 55 as the contact of the wire 54 is disposed and adapted to contact with such armature when the contactof the wire 54. is in contact therewith. There is connected in the wire 80 an electromagnct 82 disposed adjacent to the armature- 55 and on the same side as the contact 77. The wire 80 is furthermore connected with the contact t already described as adapted to be connected to a public service main.

The switch S is adapted to be. operated by a conil'iination lock 83 (Figs. 1, 2 and 3),

whereby whenthe bolt 84. is so thrown that the contact 61 will engage the contact 60 the system is set so thatvvhenever the circuit of the relay R is disturbed so that. the relay R is deprived of energy, the magnet 3 will be en-' ergized thereby attracting the armature 55 and forming a circuit to energize the audible alarm 15. Thereupon when the bolt 84 is so thrown that the contact 61 contacts with the contact 79, a circuit will be formed which will energize the magnet 82 and retract the armature into contact with the contact 77 and the contact of the wire 56 thus resetting the armature. Thereupon the bolt 84 can be restored to its first position where it will hold the contact 61 in contact with the contact 60. When the contacts 79 and 61 are in contact and it is desired to remove the easing 16, it will only be necessary to connect the contacts 73 and 74 with the public service mains, whereupon the solenoid 67 will; be energized and withdraw the core' 68 from the brackets 65 and 66 and it is then a simple matter to remove the casing 16. On the other hand, if it is desired to open the inner door 20, the outer closing member 21 having been opened, it is only necessary to connect the contacts 78 and 74 with the public service mains and the solenoid 71 will be energized to withdraw the core 72 from engagement with the brackets 69 and 70.

From the foregoing, it will be seen that if an unauthorized person should actually have come into the guarded structure without disturbing the protective circuit at A, before such person could either get at the gong contained in the protected box B or at the eontrolliiu mechanism for the gong con,- tained in the protected box C, he would immediately disrupt the circuit when he removed the casing 18 or opened the outer door 21 and furthermore would thereby destroy the unlocking circuit of either the innor casing 16 or the inner door 20.

On the other hand. it the unauthorized moved from the frame portion F, the circuit connect-edv to the relay R; "will be broken. Obviously. if the gong thereupon started, and the combination lock. could be operated to immediately silence it, the alarm mightnot be prolonged suliicient to attract attention. However, with the present arrangement. as soon as the frame portion G or the frame portion l is removed, the connections for restoring the gong to silence it will be so impaired that such restoration is impossible, the wires 56, 62-and 80 which allthree pass through the tubular member 1) with the wires 1]. and 12, or at least the wire 80-,

through the frame portion G, Furthermore the wlres 56, 62 and 80, or at least .thewire tions E, F, and

I connected jack "and were" will be connected by insulated cores other, and such wires will each comprise two portions, one of which portions is provided' plug 86 shownin Fig. '6 and the.

with the other portion provided with the jack 87 shown in Fig. 7 by means of which the portions are connected to one another and the, plug arrangements are disposed in the tubular member Dremote' from'handling. From this, it will be seen that when the frame portion G is removed,

"it will first break the circuit depriving the relay Ri of energy,

.controlmechanism to and upon further removal of the frame porthereupon setting the energize the gong 15,

' tionCy, the wires 56 and 80 or 56, 62 and 80,'

* illustrated in Fig. 8. In

will be pulled along with it, the jack and i plug arrangement easily giving way to such take place This disruption will, of course, also when the frame portion F is removed from the frame portion E, and when theilframe portion -E is removed from the wal pull.

. In Fig. 10, there is-shown in diagram a special application for the plug" and jack this diagram, a Wire 88 connects a source'of current 89 with a resistance 90. The wire 91 connects the resistance 90 with-an electromagnet 92,-the wire 91, extending parallel to the wire 88' fora considerable distance. A Wire 93 connects the electromagnet 92 to electromagnet 4 sistance 90 will be shunted 94and;a'wire 95 connects the electromagnet 94 with the source of current 89. At 96 and 97 the plug and jack arrangement of Fig. 8

- is disposed, the'arrangement being such that when the'plug is a I jack' arms comes moved, so that onepair of in contact with its insu- Iated portion, the passage of current willbe 4 thereupon theelectromagnets vever, at the further removal, so that both pairs of jack arms come in contact with the extreme conductive end of the plug, the reand thereupon the electromagnet 94 which requires greater magnitude of current' to energize it, will be which ener 'zedpas will electromagnet. 92.

An audi le alarm, such as a bell 98, is connected by a wire 99' with a source 01' current 100, by a wire 101 with the contact 102 and by the wire 103 with the contact 104. The source of current 100 is connected by a wire 105 with an intermediate member 106 to is pivotallyconnected the armature 107 adapted to contact with the contact 102. To theintermediate mcmbcr106 is also pivotally connected the armature 108 adapted to contact with the contact 104. The'armamoving the plug from its jack cuit, of an alarm outer casings thereforfsaid protective cir-. *1 cuit being controlled by said outer casing,-

inally out of contact with the contact 104 and when. attracted by the magnet 94 will be brought into contact with contact 104.

. From the foregoing, it will be seen that the bell 98 will be at rest when th e plug is in position where it permits the circult to pass through the resistance 90 in which case the electromagnet 92 is energized, and that, on

the other hand, when in the at.,96 and 97,

course of reshould the deencrgizing of the magnet 92 not immediately release the armature 107 to contact with the contact 102 and thereby energize the bell 98, the further removal of the plug from the jack will energize the magnet 94 which will thereupon attract the ar- .mature 108 into contact with the contact 104 where itwill be retained and the bell 98 energized by the circuit'made through armature 108 and contact 104.

In the accompanying drawings I have diagrammatically represented an embodiment of my invention, but I do not limit myself to the particular arrangement shown, as it will be evident to one skilled in the art, that features of my invention are adapted for use either separately or in combination with each other, and the particular descriptions hereinbefore contained of the typical system shown in the annexed, drawings are given for the clearerillustration of my invention. Many changes in construction and arrangement, and insertion or omission of parts may be made without departing from the spirit of my invention.

The casing locking means hereinbefore mentioned is described and claimed in United States Letters Patent No. 1,221,322, dated April 3, 1917, said patent resulting from application Serial No. 147,665, which was a division of this application. I claim:

1. The combination of an alarm mechanism, inner and outer casings therefor, locking means for said inner ing means for said locking means, and means controlled by said outer casing forenergizing said alarm mechanism and for disabling said releasing means.

2. The combination with a protective cir- .mechanism, inner and locking means for said inner casing, releasing means for said locking means, and. dis ablin means for said releasingmeans con-. trolled by the protective circuit.

3. The combination'with a protective circuit, of an alarm mechanism, inner and outer casings therefor,

means for said inner casing, releasing means said protective circuit being controlled by said outer casing, locking casing, releasi for said locking means, and means controlled by the protective circuit for energizing said alarm mechanism and for disabling said releasing means.

4. In an alarm system, the combination with a structure to be guarded, saidv structure having one or more movable portions, of a two wire protective circuit, each wire of said protective circuit being disrupted' adjacent to one of said movable portions, a plug connectetd with said movable portion and adapted to bridge said disru )tions to permit the continuous passage 0 current through said protective circuit when said movable portion is inone position, and adapted when ren'ioved, first to cross connect from one wire to the other of said protective circuit, and second to break connection through both wires of said protective circuit, an alarm mechanism, and initiating means for actuating said alarm mechanism controlled by said protective circuit.

5. In an alarm system, the combination with a structure tobe guarded, said structure having one or more movable portions, of a two'wire protective circuit, each wire of said protective circuit being disrupted adjacent to one of said movable portions, 2.

' plug connected with said movable portion and adapted to bridge said disruptions to permit the continuous passage of current through said protective circuit when said movable portion is in one position, and adapted when removed, first to break connection through one wire of said protective circuit, second to cross connect from one wire to the other of said protective circuit, and third to break connection through both Wires of said protective circuit, an alarm mechanism,-and initiating means for actuatin; said alarm mechanism controlled by either a break or a cross in said protective circuit.

6. In a burglar alarm, the combination with a structure to be guarded. of a source of current, an alarm mechanism, housing means in which said alarm mechanism is disposed, an outer cover for said housing means, an inner cover for said housing means, the alarm mechanism being disposed inside of said inner cover, wiring connecting said housing means and said guarded structure to said source of current, the wiring being disrupted while passing through said housing means, and a pin on' said outer cover adapted to'bridge said disruption to ermit the continuous passage of current t rough said wiring when said cover is closed, and initiating means for actuating said alarm mechanism, said initiating means being maintained in inoperative posi tion so long as the current flows through such wiring but assuming operative position whenever said Wiring is disru too.

7. In a burglar alarm, the com ination with a structure to be guarded, of a source of current, an alarm mechanism, housing means in which said alarm mechanism is disposed, an auxiliary casing, setting means for the alarm mechanism disposed in said auxiliary source of current with said structure to be guarded, said. housing means, and said auxiliary casing, initiating means for actuating said alarm mechanism, said initiating means being n'iaintained in inoperative flows through such wiring butassuming operative position whenever said wirii ig disrupted, said auxiliary casing co nprisiug three frame portions, wiring passing through all of said three frame portions, contacts on said frame portions contacting with one another when said frame portions are in closed position thereby forming a continuous passage for current through all the wiring or said frame portions so that the current will be broken when any one of said frame port ions is displaced. sa id w ring forming a part of the wiring connects with said source of current, and ailocking means disposed on such frame portion Wlnelris located intermediate the other two frainey portions and operatively connected to said setting means whereby said setting means is oper- .ated, the position of such locking means casing, wiring connecting said position so long as thefcurrent on said intermediate frame portion requiring one of said outer frame portions to be removed before the locking means can be manipulated whereby the wire will be dis rupted and energize the alarm mechanism.

8. In a burglar alarm, the combination with a structure to be guarded, of a source of current, an alarm mechanism, housing means in which said alarm mechanism is die posed, a cover for said housing means, an auxiliary casing, setting mechanism for said alarm mechanism, disposed in said auxiliary casing, a=wiring connecting said source of current with said structure to beguarded and said housing means, and said auxiliary casing, initiating means for actuating said alarm mechanism, said initiating means being maintained in inoperative position so long as the current flows through such wiring but assuming operative position whenever said wiring is disrupted, electromagnetic locking means associated with said cover and said housing means and adapted when deiincrgized to lock said cover to said housing means, and a connection from said electromagnetic locking means to a sepa ate means, (if a protective circuit including" two epa rallel conductors insulated from each other, there being interposed in each of said.

- permit current to flow through said parallel conductors,- and signaling means arranged .to be shunted When said plug Permits the passage of current from one parallel con- 10 ductor to the other., A

Signed at New York city, in the county of New York and State of New York thisv second day of June A. D. 1915, v

SIMON B. HESS.-

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