US1003234A

US1003234A - Burglar-alarm.

Info

Publication number: US1003234A
Application number: US52641609A
Authority: US
Inventors: Albert Cline
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-11-05
Filing date: 1909-11-05
Publication date: 1911-09-12
Anticipated expiration: 1928-09-12

Description

. A. 0mm.

BURGLAR ALARM. Y APPLICATION ILED NOV. 5, 1909.

Patented Sept. 12, i911 HBLTS bil Figa- 1 A. CLINE.

BURGLAR ALARM.

APPLICATION FILED NOV. 5, 1909.

1,003,234. l, I Patented sepn.l12,1911.

4 SHEETS-@SHEET 2.

A. CLINE.

BURGLAR ALARM.

APPLIQATION FILED 110121909.

1,003,234. Patented sept. 12, 1911.

4 SHEETS--SHEBT 3.

Figaif ai l Amar 011m.

y ATTORNEY.

y A. CLINE. BURGLAR ALARM.

APPLICATION FILED NOV. 5, 1909A l 1,003,234, Petented sept.12,1911

4 SHEBTS-SHEET 4 -AlbeI'Jf (Hirte.

y )UNITED vST OFFIE;

ALBERT CLINE, OF INDIANAPOLIS, INDIANA.

BURGLAR-ALARM.

Application tiled November 1" ABe it known that I, ALBERT CLINE, of Indianapolis, county of `Marion, and State 'of Indiana, have invented a certain new and' useful Burglar-Alarm; and I do hereby de` clare that the following isa full, clear, and, exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts.

f The object of thisinvention is to provide an improved electric signaling apparatus uparticularly adapted for the prevention of robbers and burglarsbrealting through win- "dows, doors, bars and the like. y D

The chief feature of this invention con- 'sists in maintaining an electric circuit in rey*lation to afwindow frame or the like so that when the latter is manipulated said main4 circuit will beait'ectcdl thereby, by being broken or short-circulted. slgnal and `signal circuit are provided with means in jsaid main circuiti for closing the signal cir cuit, which circuit closlng means is held "normally open by the current passing' circuit is broken or shortcircnitved, said sigtln'ough said main circuit. Then the main Inal circuit will be closedv and the: signal operated. In'working out said feature of l the invention, I have provided transverse 'tubes in a window frame at intervals,

'.through which wires are stretched normally ont. ofcontact with the tubes, which wires form a part of the main circuit, and said tubes 'are in electrical connection with the window frame and said window frame 1s short-circmted, so that when a tube 1s bent i enough to touch the wire passing through it,

`the'signal will be operated, and the same will -be trueh if the wire be broken. .A Likewisc, the main circuit is broken when the window is"raised.` The wire extending .lthrough eac'h tube is stretched on a pair of springs and "when the wire is broken, said `springs will expandagainst means in electrical communication with the frame so fthatagain there will be short-circuiting and thesignaloperated. In order that the sig-V halniay continue to operate until stopped iu by ,a person inside the-house, I provide a primary signal circuit, which is brought `into operation as above described and will operate the signal'las long as-the` current. is

5, 1909. Serial No. 526,416.

permitted to pass through it, and also a secondary signal circuit with a switch for closing said secondary7 circuit, which is nor nia'lly held open, and means actuated by the current passing through the primary circuit for releasing said switch and permitting it to close. Then the secondary circuit will operate the signal until. stopped, regardless of the primary circuit. Thus a burglar might stop the primary circuitl by immediately lowering the window, but he could not stop the. secondary circuit from further operation of the signal.

The nature of my invention will be under stood from the accompanying drawings and the following description and claims.Y 4

In the drawings Figure 1 is a central vertical section through the lower pfirt of a window casing and screen frame with a diagrammatic view below the saine of the signal and electric wiring. Fig; 2 is a horizontal section on the line 2 Z of Fig. 1. Fig. 3 is a side elevation of the lower part of the window casing at the left hand of Fig. 1, viewed from the line 3 3. Fig. it .is the saine View of the lower part of the right hand side. of the window easing. viewed from the line 4 4 of Fig. 1. Fig. 5 is a horizontal section on the line of Fig. 1. Fig. (i is a vertical section through showing the position of parts when the wire is broken. the same appearing on anv cnlarged scale. 'Fig 'T is a diagram of electric circuits. Fig. 8 4is a vertical .section ce'n- ,trally through one of the tubes and the sides of the window frame, shown in improved form. Fig. D? is a portion of the same enlarged and bent. Fig. lt) is a horizontal section on the line ltr-'10 of Fig. S. showing the improved forni. Fig. 11 shows one side of the casing with the wires` as they appear in the casing-on an enlarged scalewith a burglarls'I drill inserted. F ig. 12 is a section on' the `line 12-12 of Fig. 8.

In'the drawingsthere shown the bottom and the'sides 11 of a window casing having cleats 12 and 13 secured thereto, bctween which a window or window ,screen ings a screen 15 shown, for the purpose of explaining certain features of the invention.

a portion of the window casing and windoiv frame 14 is slidably mounted. In the drawtact 146 and thus closethe bell cirduit hereafter described, when thecircuitjheretofore described has been broken; If a burglar should -undertake to yenter throuvh the screen `window shown,- he would bend one of the tubes 18. The tube at the bend would come. contact with' `the wire 19 extending through it; and thus cause a shunt circuit or l `change of circuit. In that instance the ciriet each side ,o-'said window or screen :trame 514' there isl secured a iiertically dis osed cas' lng 16 oA en at 'lits outer' sidey Iu es 18 are entende at intervals horiz'dntally through the screen :trame through each of which a wire 19 is stretched on leaf springs-20 which bear `against,insulation 2l withinthe casing fligiflars 22 are'A placed `across the outer ed e o :the casing 1,6 at points opposite thev ens tubes '18. Near the lower endof they Window or screen frame 14 Contact posts 23 ere securedto and insulated from the inner 'Walls of .the caSinglS, so that when thev frame is in its` ylowered position said contact Vc\ 1it,1ns :ead of going out ythrough the spring 241ml wire 3,9,jwould pass out `through the Atube 18, the casing 16, the vspring, 30 and wire 50 to the battery. Inftht-event, as

soon as-the current ceases passing throughv pests will engage, the contact springs 24 se- 'the magnet 40, the switch arm 45 would drop cured to the -insulatingblocks'25 in the sides down and 'closevthe bell circuit, causing the il ofthe windlnvv`v casing. Said-contact postsV ringin ofthe bell. In the bell circuit there Eiland the springs'20fat the ends of the-tubes .is a be l l51' and a battery 52. A wire 53 ex- ?.8 are alternately connected by wires 26 so tends from the battery'52 to the switch'arm to as to :torni a circuit running from' the spring 45 .a'nd from the contact 146 a wire 54 ex.-

24 on onoside, thrmiglfrsJ contact post. 23,111.Y tends to the bellv and from the bell the `wire 86. wire '26,"82 spring 2Q and a wire19 to the .g55 passes-to the battery, thus completing the other side of the window' orfscreenframe circuit. vTo' keep the bell continuously ringund thence up tothe wirel 1,9"abofve' and back .ing and prevent the burglar from stopping to the othersidejothe "window or screen its ringing, a switch lever'56 is provided. 1t

trarne until the eircuitlrea'c'hes. the spring.` et the otherside of .the window frame.'

Qin?,

the circuit there rsa Av Jltage-reduc1ng is a'bell crank leVer-fulcrumed at 57 l,and

'having a weight 58 which-wis normally elevated The other end of the bell crank is uns 28, such as? .a v'resistance coil. l The *heldl by the'armature bar 59 out of engagetubes 18 are in electrical communication'with ment with the switch bar 60. When the cir; u

Ithe metal casingslt and a contact spring 30 that is secured bes1de the spring 24 at one 'side of the'window screen rame (see Fig. 4), and isno'unted like the spring 24 beside it', and-the upper end of the spring() en-l gages e: vcontact post 31 that is "in electrical communication with the casing 16, so that all of the 'tubes 18 andthe two casings 16v andthe post 81 and the spring 30 are in 'elec-.

- lricel eomnunicationwith each other.

There battery 35 whichthrough wire 36 is in confu'nunicationyvithl one 'of thel vsprings 24. The current then passes through the circuit in connection with a window orA screen frame und through the other; spring 24, out through the wire 37 tol themagnet 38; Thenee" ..-1e curient passes through the wire 39 'to thernagnet 40 'and thence through wire 41 beck to the battery. Thecircuit just cuitlast described is established the current, passingthrough wire 54, energizes the magnet161 whichl attracts the armature bar 59 andgreleases the switch lever 56, whereupon theweight 58 throwsthe upper end of said switch lever down upon the switch bar 60 and closes thecircuirt through the battery and bell including the 'wire 62 and the por- In that levent the :bell will continue to ring tionv of the Wire 5 4, which lies between the until somebody returns. the switch lever 56 l `magnet 61, lever 56 and bars 59 and 60 are y to the position shown in the lower part 'ofl Fig. ,1, andbreaks the bell circuit. AThe mounted-0n the board '64. If lthe burglar in attempting.; to enter should break one of the wires 19, as indicada in Figpc, uw uw f is normally closed, .so that thecurl t l 4 y l rent passes through it all the time when'thefirst and ain` circuit would be broken, and 115 device is in its'norlnalfcondition VThe nagthe same result would happen as." be'iorc, nety 38 audits armature 42.011 the switch arm,J .,gnamely': the current would cease tb poss 43 are so arranged vthat, if the current fcx- `throi'lgh and energize the muguet v40, which' 5s cee-ds a' certain strength, say one volt, 'the would causethe' switcharm 45 to close the 'magnet will attract the 4armature and move bell circuit;` l I 1120 the-switch arm 43 against thecontac't g .-.s'o 4The springs y20 are normally compressed, as to close. the bell circuit, ,hereafter deconsidcrably'fbythe wireslt) drawi'ngthcm scribed. The magnet 40 is Aprofilde'dwi h a, towardfeach (other. Vlhen,the .wire-'5121)' is 6) double switchurrin'f fulcrluned at 46. he broken, 21s.sl-xowr1' in Fig. 6; `the' spring 20 causes llong arm out of cngagernent'with the. con- 'Y short-'circuitcd bulgosglaltcrally into Contact withoneoi' the cross-bars22 'and thelithc current willbo iu.. the manner aboye4 del* scribed;y lf the lnaln'clrcuit, as originally v Y l described, is` cut by the burglar, the bell cin cuit will lbe closed. If, on the other hand, the burglarl should attempt to' short-circuit the main` circuit, heretofore described, by connecting the Wire 37-to the wire 3G, therev would be an increase of current passing Athrough the magnet 38 which would enery gize it suliiciently 4to ycause itl to actuate the switch arm 43 and close the bell circuit, any increase in the current above normal, say one volt, Would sulliciently energize the magnet 38. y

ln Fig. 7 the diagram illustrates the various circuits.'y Thus the main circuit a is fas in Fig. 1 above given.

through the casing 11G.

normally closed. The circuit Zi lis utilized when 'the Window is raised, a tube 18 bent so as to touch a wire 19, or Wire 19 broken so to throw the spring 20 in the position. shown in F ig. 6. The primary bell circuit, is indicated by c, and d is the secondar;T circuit which causes a continuous ringing of the bell.

in Figs. 8, 9 and l2 a modiiied form oi' a part ofthe device is shown. There a piece of rubber 70 is secured on thewire 19 so that any slight bending of the tube 18 would not cause the signal. to operate, but a considcrable bending of the tube, as indicated in F ig. 9, would be required to produce that result. v ln F l0 and ll another modification is illustrated, for there the sides of the casing 1G are lined with insulation 75, through the centerctl which a zinc strip 76 extends'and there is a zinc strip 77 on the inside surface oi the insulation. The casing 1G and the 'strip out' zinc are connected with wire 150 corresponding with Wire *shoivn'iii Fig. l and above described, andthe inner strip oli' zinc 77 is connected with the Wire 136 corresponding with the Wire 3G and above dcscribed, the circuits otherwise being the same The' purpose of `this arrangement is to prevent drilling Thus in Fig. l1 a drill Z8 shown that has passed through the casing'ltl and part of the insulation and the inner cinc' strip 76 but it has pushed sonic of thezinc from that strip through the intern'iediute insulation into contact With the .strip 77, enougli to throw the two strips 76 and 77 .into one electric circuit running out to the battery through the Wires loand 50. rl`be strip 7? would be needed only when a non-conducting drill 78 were used. if the drill were made ci conducting material it would short-circuit through .the cas ing .1G and zinc strip 76 and set the bell to ringing,

'Instea d of a bell., another electrically operated signal might be employed.

l claim iny invent-ion: l. The combination of a frame adapted to conduct electricity, a main. electric circuit mounted on said frame butI normally insuA lated therefrom and being' normally closed. a signal circuit, means tor closing the mi cil-cuit, au clectrouiagncl.. in vthe main cin-fil; whereby said iiicans is held open by thc cui rent-passing' through thc main circuit, and means connecting saidlramc with said main circuit so as to cutout thc signal circuit clcsing means in said main circuit when the frame and main circuit are manipulated so as to bring them into electrical connection.

2. Thecombinaiion of a tube, a main electric circuit 'ni'irii'ially closed, a part `olf which circuit consists oit' a wire passing through said tube buthcld norii'ially out of contact therewith. a signalen-cuit, means for closii'i'g thesignal circuit, an electi'oinagnet in the main circuit whereby said means is held open by the current passing thriinigh the `main circuit,` and a connection between said tube and said main circuit which when the tube is brought in conta ct with the wire p: sing through it will cut out o t' said main circuit said signal closing means, whereby the signal circuit will be closed.

3. The combination of a Window sash or ythe like having an electrical conducting strip secured to each side thereof, metal tubes ex# i tending transversely ot' said window sash at intervals and connected with said conducting strip, amain electric circuit mountf ed on said Window sash and insulated there from and normally closed, a part of which main circuit consists of a Wire passing through each of said tubes and held noi mallyout of contact therewith, a signal circuit, meansfor closing thc signal circuit, an clectroinagnet in the main circuit whereby said means is held open by the currenty passing through the main circuit, and an electrical" connection between said window sash, and said main circuit so that when any tube comes in contact; with the Wire passing through it the sional closing means in the main circuit will 'ie cut out of' the new circuit established, whereby the signal circuit will be closed. A

il. The combination ot' a window sash liaving an electrical conducting strip secured to each side thereof, metal tubes extending transversely. of said Window sash at inten vals and connected with said conducting strip, an electric circuit-mounted on said window sash and insulated therefrom and normally closed, a part of which circuit con sists of a wire passing through each olE said 4tubes and held normally out ol contact there with, springs at each side ot said window sash. to which each of said tube Wires is securcdso said springs will be normally under tension,"means in electrical connection with ,said Window sash to be engaged with said .springs When the Wire is cut, a: signal circuit, means for closing the sigi'i'al circuit, an

said main circuit so that when Vanyjsube Wire "Witnesses:

electromagnet in the main CIOU whereby In' Witness wh'rof, I yhive herelmb` afsad means is held pen by the current passyxed my signature inthagprese'nL of the ing through the mainvcrcut, and an electriwitnesses herein named. cal connectlon between the wlndow sash and is cut the signal closing means w111 be cuty" y G. H. BOINK, out of the newly established circuit.

O. M. MoLAUGHmN.

ALBERT CLIN-E;