Патент USA US2404842код для вставки
Patented July 30, 1946 2,404,842 A`l..IfNsjIîT151D L-S TATiEtS EIN T LOìF, FirIiCzE ,2,404,842 SYSTEM ì ;John;N. Hoekstra, Royalf.10ak,¿Mich. ApplicationfSeptember 23, 19.44„.SerialjBT05555532 Vi4 Claims. (Cl.‘.`1”4î9---5) "I‘his'inventionrrelates to alarm systems ‘fthe Apurpose `being to providela new and improved mally extends iinto ‘the lmercury Vin ‘the ~~cup T9 " and ft‘his- mercury Vcup -torms’ipart `‘of «"the 'electric circuit Iil which‘includes la lcoil ïI l A‘on the‘stylus means >for‘transmitting -a message as by "mean-s of a telephone system in the case of-~a ñre toi' instance. A‘feature of the invention resides î‘in the'use ‘of a‘strip of material -having‘a groove Iformed 'therein similar‘to the groove -in -a `phonograph Y-record and by means’ofIvvhich a spoken message maybe transmitted to vaV telephone circuit and is "10 I2 which rides the groove. _WhenithermagnetL/S fis attracted lby îthe‘ metallic ‘ portions ~`of ‘the "strip the 'stem 8 ‘is Amoved lout _of contact with fthe mercury in "the cup 9 -as is indicated in Fig. 13 which is the normal position of the parts. In‘Fig. 5 Ais ’shown va `means for 'closing the vrepeated at'successive intervals. bellows element I3>and `a secondfbellows lelement These and iother Vobjects and features of the ‘invention are hereinafter ~more >>fully described and 'claimed and 4whichiis ‘shown'in'the laccom I4 _connected A4by a :tube I5. The bellows j'ele gaseous or liquid ‘and inthe event of ñre‘a panying `drawing in “which Fig. 1 is an `_illustration»partly 0diagranimatie Vweight I’S is dropped which-compresses the bel ‘lows >It?, and Mexpandsfthe bellows Id to 'Contact “of the apparatusembodying myïinvention. with one end ofthe 1ever’I“ÍI,"tl'1e-opposite'end of which‘is provided with aibrake 'shoe I3 nor Fig. ‘l2-is a _cross 'section Vthereof 0at îthe point of ‘contacto'f the; needle "with‘ the groove. Fig. 3 is a `diagrammatic 4‘vien/'showing the reels ion which the‘tape’is Wound. Fig. 4 is a similar View 'showing ‘a somewhat 'different .arrangement `of ‘parts Fig. 5 ‘ is. a diagram showingmeans fior .causing operation ofthe apparatus. The apparatus is usable in buildings whereg‘ñres may occur ‘andin the operation ofthe apparatus a spoken message'istransmitted'to the telephone station.,giving.the location of the fire. 'In‘the preferred arrangement of parts a strip I is formed with a longitudinal groove 2 and this portion of the strip is non-magnetic in character while the portion indicated at d and 5 is magnetic and the message is formed in the groove between these magnetic elements which serve to separate repeated messages, or to provide a time interval between differing messages. The groove extending across the metallic ele ments as indicated at 2a is a straight line and mally “held _in surface -contact with 'the Ksurface Of‘the Wound tape on‘the-'spool :IS-and normally prevents-rotation ofthe‘reel. ‘The expansion of ‘the'bellows‘ member I4,releases thebrake carried on ‘the 'end of „theäpivoted arm il, and as the 'Weight continues'to .rest on `the bellows it, the 25‘ bellowsi'ii is maintained in expanded condition "by the’fluid thereinandpermits‘the reels to .con 'tinue in rotation _as long _as ‘thespring motor is operated. 'The supporting _means 'for ithebellows membersmay be oif anyapproved ~form` and' is _not 30 here shown. While I have provided the strip I with grooves similar to that of a phonograph, the invention is not conñned to such character of means for transmitting the message as it may consist of dots and dashes as in a telegraph system. Any type of message may be transmitted depending upon the character and requirement of any par ticular installation. The strip may be formed of a series of magnetic and non-magnetic elements the strip is suiìciently long to permit repeated 40 so arranged as to transmit the desired informa tion as by a dot and dash system used in teleg messages on the portion I at successive intervals raphy. and the direction of movement of the strip is It will be noted that in Fig. 2 the strip I is indicated by the arrow in each of Figs. 1, 3 and 4. supported by means of grooved wheels 2I and 22 The apparatus consists of a permanent mag net 6 which may be mounted in any approved 45 as indicated in Fig. 24. These Wheels are to be understood as being rotatably mounted on a sup manner, as for instance by means of the arm 'I porting element (not here shown) in a manner shown in Fig. 4, which is flexible in character. The weight of the magnet 6, as shown in Fig. 4, causes the saine to normally occupy a position out of Contact with the strip. The magnet how ever is suñîciently close to the strip to be at tracted by the magnetic elements 4 and 5 and there may be one or more such strips and in fact may be of one piece of metal of the desired length. The magnet 6 has a stem 8 that nor tending to prevent lateral displacement »of the strip adjacent the point of contact of the stylus 50 I2 with the groove. The grooved wheel 2| may be mounted in a stationary member 23 While the Wheel 22 may ride in a slot in the supporting member 24 and may be spring pressed to Contact with the one edge of the strip I as by means of the spring 25 connected with the spindle of the 2,404,842 3 4 wheel 22 by a bar 26. This arrangement pre vents lateral displacement of the strip I. It is movement of the stylus in the coil I2 that causes iluctuation in the electric circuit in which the wires l0 and Illa are connected indicated at Ila and IIb in Figs. 1 and 4 and thereby causes fluctuation in the said lines and thence to a re ceiver (not here shown). It is to be understood that the speed of move ment of the strip having the groove correspond ing to the groove in a phonograph record should correspond to the speed of movement of the phonograph record. relative to the needle. The invention, however, is not confined to a groove . whereby successive messages may be transmit ted to a receiving station, means tending to nor mally maintain the motor reel stationary, and means whereby the reel may be released to rota tion by the motor and thereby transmit the mes sage to the telegraph or telephone circuit. 2. An alarm system comprising a tape formed of a thin strip of material formed of magnetic and non-magnetic sections, the nonemagnetic sections of the tape having `a'groove in its sur face similar to the groove of a phonograph record, ` a stylus for engaging the groove, a pair of reels in spaced relation on which the tape is wound, one of the reels being rotatable as by means of similar to the phonograph groove as the groove 15 a coiled spring to thereby move the tape Yacross may be so formed as to transmit a message similar the stylus, an electric system in which the stylus to that of a telegraph recording tape. is connected to cause current iiuctuation therein It is believed evident from the foregoing de due to vibration of the Stylus traversing the scription that the various features and objects» groove of the non-magnetic sections, and means of the invention are attained by the means here 20 including a magnet stationarily positioned adja in disclosed. , It is pointed out however that var cent the surface of the tape opposite that engaged ious changes may be made in the character and by the stylus and adapted to break- the circuit relationship of parts within the scope of the ap due to its being attracted by the magnetic portion pended claims. of the tape. ' y ` Having thus brieñy described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United 3. In an Valarm system, a tape formed of a thin strip of material having magnetic and, non-mag netic sections in alternate relation, the non-mag» netic sections having va grooveA in the surface> ` 1. An` alarm system for automatically trans Vthereof similar to the groove in a phonograph mitting a message to a telegraph or telephone cir 30 record, and the magnetic sections having a groove cuit, comprising a tape of thin material Íormedof therein on a straight line connecting with the Va series of sections of a desired length separated respective. ends of the non-magnetic sections, and bysections of magnetic material, means by which means whereby traverse of the groove by move the tape may be moved comprising a spring mo ment of the tape beneath the stylusV transmits tor including a wheel like portion on which the` 35 successive messages to an electric circuit substan `tape may be wound, a, brake means tending to tially as described. . , j hold the wheel portion from rotation, means for 4. In an alarm system, a tape having a groove causing release of the reel to rotation by its mo in the surface thereof, means for causing move tor whereby rotation thereof winds the> tape ment of the tape, `a stylus for riding the groove, thereon, said tape having magnetic and non~ 40 an electric circuit in which the stylus is con~ magentic sections arranged end to end in a single nected, a coil therein in which the stylus is> posi strip, the non-,magnetic sections having a groove .tioned, the groove having successive `spaced por in the face thereof similar to the groove of a tions thereof 'of such form as to cause variations phonograph record, a stylus for riding the groove, in the position of the stylus in the coil to thereby means whereby Vibration of the stylus due to the 4,5 cause fluctuation in the electric circuit and por~ character of the groove in the non-magnetic tions therebetween non-productive of current .section causes a fluctuation in an electric circuit, ñuctuation whereby a message may be trans means actuated by said magnetic sections tend mitted to the circuit at successive time intervals. States is: , ing to break the circuit to the telephoneor tele graph system and providing an arrangement JOHN N. HOEKSTRA. '