US2161525A - Automatic burglar, fire, or like alarm - Google Patents

Automatic burglar, fire, or like alarm Download PDF

Info

Publication number
US2161525A
US2161525A US172461A US17246137A US2161525A US 2161525 A US2161525 A US 2161525A US 172461 A US172461 A US 172461A US 17246137 A US17246137 A US 17246137A US 2161525 A US2161525 A US 2161525A
Authority
US
United States
Prior art keywords
shaft
dial
sound box
alarm
record
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US172461A
Other languages
English (en)
Inventor
Mountstephen Edred Rabjohn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2161525A publication Critical patent/US2161525A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/658—Means for redirecting recorded messages to other extensions or equipment

Definitions

  • the gramophone motor upon being started, operates mechanism which successively dials an emergency signal to establish communication with the appropriate station, lowers the sound box onto a sound reproducing record to produce the message or alarm to be transmitted, returns the sound box to the commencement of the record and finally disconnects the device from the telephone system.
  • the mechanism for effecting these various operations is of a relatively complicated construction and the object of the present'invention is to provide an improved simplified construction of driving and control mechanism for effecting the above mentioned operations and an improved dialling mechanism whereby the apparatus is simplified and the reliability and certainty of its operation under all conditions is enhanced.
  • the means for effecting thenecessarysequence of operations including the dialling means and the sound box lifting and lowering means, are operated by a common transmission shaft or driven elementv actuated by the gramophone motor.
  • Figure 1 is a plan view of the apparatus according to the invention.
  • Figure 2 is a side elevation looking in the direction of the arrow 11 in Figure 1; so Figure 3 is a side elevation of the dialling mechanism showing the parts in the operative position,
  • Figure 4 is a side elevation, looking in the direction of the arrow IV in Figure 1, of the transas mission unit,
  • Figure 6 is a side elevation looking in the direction of the arrow VI in Figure 1, and
  • I Figure '7 is a diagram of the wiringcircuit.
  • the driving mechanism consists of a self contained transmission unit, generally designated A, comprising a common vertical transmission shaft 8 driven direct from the turntable spindle 8 of 10 the grambphone and a pair of horizontal shafts.
  • the a turntable spindle 9 the transmission shaft 8 and the two shafts l0 and II are interconnected by suitable gearing and said shafts 8, I0 and II are mounted in a common bracket IZQrigidly secured to the base plate l3 of the apparatus.
  • a toothed wheel H On the upper end of the common transmission shaft 8, of the transmission unit'A, is mounted-a toothed wheel H which meshes with a pinion l5 rigidly mounted on the turntable spindle a.
  • a bevel wheel l6 On the lower end of the transmission shaft 8 is a bevel wheel l6 which meshes with a second bevel wheel I! mounted on one end of theshaft l0 which, through the intermediary of a pinion i8 30 mechanism B which is hereinafter fully described.
  • a worm l9 which engages a toothed wheel 20 securely mounted on the shaft H which operates the mechanism C, which is hereinafter'iully described, for lifting the sound box and lowering it onto the gramophone record.
  • is mounted on the shaft H by means of which the dial is moved into operative position as hereinafter described.
  • the dialling mechanism generally designated B, comprises an annular rack 21 rigidly mounted in suitable bearings in a supporting bracket 24 45 secured to the base plate I! of the apparatus.
  • On the lower end of the .spindle 23 is mounted a radial arm 25.
  • the annular rack-22 is arranged H concentrically above a standard telephone dial 26 and is driven continuously by the pinion I8 mounted on the driving shaft Hi of the transmission unit A, so that-the radial arm 25 is caused to rotate continuously around the face of the dial
  • the dial Ills mounted on one end of anarm 56 or plate 21 which is pivoted at 2: to the base plate It or the apparatus in such a manner as to pivot in a vertical plane, whereby said dial can be raised to bring a pin 29 mounted thereon into the path of the continuously rotating arm 26 ( Figure 3).
  • the pin 23 or the like is mounted in the aperture of thedial which normally corresponds to the ofa standard telephonediai.
  • the dial is raised and lowered as desired by the action of the cam 2 which, during the rotation of the shaft upon which it is mounted, actuates a lever 3
  • is provided with a projection 33, with which the cam 2
  • and 33 are held against lateral displacement by means of a slotted guide member 31.
  • the transmission unit A rotates the cam 2
  • engages the projection 30 on the lever 3
  • the end of the rockable lever 33 which is thus caused to rock about its pivot 34, whereupon the opposite end of said rockable lever 33 is moved upwards and sinceit is located below the finger 36 mounted on the plate 27 carrying the dial 26, lifts said dial and thus brings the pin 23 mounted thereon into the path of the rotating radial arm 25.
  • the Pin 23 is thus engaged by the rotating radial arm 26 whereby the dial 26 is rotated in a clockwise direction until the cam 2
  • the dial can belifted and lowered any desired number of times and can be maintained in its lifted or operative position for any duration.
  • the cam is shaped according to the number or emergency signal. to be dialled.
  • the cam is shaped to lift the dial twice and to maintain the dial in its lifted or operative position flrstly, for the period necessary for dialling the number 2" and secondly for the period necessary for dialling the number 0, the number "20 being assumed, for the sake of example, to represent the emergency dialling symbol.
  • dial 26 may be disconnected from the dial lifting lever mechanism 33, 3
  • the sound box 33, the tonearm 33 and the casing or housing 43 for the microphone are built as a single unit, preferably of the character described in our co-pending application No. 172,462 which is mounted on a rod 4
  • a plate 45 On the lower end of the rod 4
  • the sound box is normally held in this position by a supporting member 41 pivotally mounted in the bracket 44 and provided with a seating surface 48 for aroller 43 mounted at the lower end of an arm 63 which is integral with the member 42 pivoted in the bracket 44 and in which the rod 4
  • the supporting member 4.! and the arm 63 are arranged in the same vertical plane as a pin or cam 6
  • the pivot of the supporting member 41 is provided with a downwardly projecting extension 62 forming a handle by means of which the said member 41 can be moved into position when setting the machine ready for operation; also the operating shaft II is provided at its opposite end with an indicator 63 for use in setting the machinereadv for operation.
  • the operating shaft II and with it lowered whereby the sound box is gradually lowered onto the commencement of the sound record to produce the message or alarm to be transmitted, and the plate 4611 moved out of engage intimids message or alarm is being transmitted the sound mencement of the record.
  • the pin box travels across the record and at the same time rotates the rod 4
  • will have been rotated to such an extent that the plate 45, mounted on the lower end thereof, will have moved into an angular position relative to the stop-bar 46, and the pin or cam 5
  • the burglar or fire alarm' according to the in matically when it is set into operation and is automatically opened again, as hereinafter described, to disconnect the device from the telephone system after the message has been transmitted and repeated as described above.
  • the mechanism for setting the alarm device into operation is illustrated in Figure 6 and generallydesignated D in Figure 1, and comprises trip mechanism formed by the armature 55 of an electro-magnet 51 and, a catch or abutment 56 mounted on a double arm angular lever 58 provided at its outer; free end with a weight- 59 and pivoted at its opposite end at 'I3.
  • a catch 60 which engages a stop 6
  • the catch 60 is formed on one end of a pivoted lever 62 having at its opposite end a weight 63 which tends to holdthe said catch 60 in engagement with the stop 6
  • the catch 60 is adapted to be moved out of engagement with the stop 6
  • the parts 64 and 65 of the switch closing member are pivoted together at 61 so that the part 64 can be pivoted upwardly and rearwardly to facilitate the return of the,
  • the part 66 is provided with an element 10 which, during operation, forces the resilient contacts of the switch 64 together to thus close said contacts.
  • the part 64 of the switch-closing member'64, 65 is provided with a hooked end which, when the said member is moved into the closed position shown in broken lines in Figure 6, engages below a catch formed on the armature 68 of an electromagnet 68 whereby the switch 54 is held in the closed position.
  • the switch 54 is maintained in the closed position to connect the alarm device with the telephone system while the message or alarm is being transmitted, but after the message or alarm has been transmitted is again opened to finally disconnect the device from the telephone system.
  • the latter operation is effected, when the gramophone motor runs down by a knife switch 14, I6, Figure 1, which closes the circuit of r the electro-magnet 69,. which is thus energised so that the armature 68 is attracted and releases the member 64, 65 whereby said member returns to its. initial'position, due to the resilient action of the switch 54, and said switch is opened.
  • the knife switch comprises members 14 and 15.
  • the member 14 is pivoted at 16 to the-base plate l3 and provided at its inner end with; a fork-like part between the arms of which the edge of a disc 11 of the governor of the gramo phone motor extends.
  • the governor When the motor is running at full speed the'said member 14 of the knife contact is moved by the governor into the position shown in broken lines in Figure 1.
  • member 15 of the knife contact consists of two spring blades pivoted together at I8 to the bracket .24 and is connected by a lever 19 to the finger said member 15 is moved into the position shown in broken lines in Figure 1, that is into the path ,of the knife contact, which are initially in the position shown in full lines in Figure 1, are when the device is set into operation, moved into the position shown in broken lines in the manner described, the member I4 being moved into such position first.
  • the members 14 and 15 remain ,35 pivotallymounted on the dial 26, 'whereby in this position until the gramophone motor runs down when the governor of the motor moves the member 14 between two contact points (one of which is shown at 60' in Figure 1) on the mempreviously described.
  • the telephone circuit that is the circuit in which the telephone dial 26, microphone 46 and the switch 54, and the circuits in which the electro-magnets 51 and 69 and knife switch 14, 15
  • the electro-magnet 51 which. releases weight I nected with the'terminals l, a and the electr magnet 68 which operates to open the switch it finally to disconnect the machine from the telephone line is connected with the terminals 2, 3 through the mechanically operated knife switch l4, 15.
  • the terminals 4, i are connected with the telephone line upon the closing of the switch 54, the connection from the terminal I, through the telephone circuit being through the primary winding of an'inductance coil 8
  • the lever 58 then falls into the posltionshown in chain dotted lines in Figure 8 and during its fallflrst moves the catch OI out of engagement with the stop ii on the gramophone turntable to start the gramophone motor and then move the member 84, 8! into the position shown in chain dotted lines in Figure 6 to close the switch 54 and thereby connect the alarm de-' vice with the telephone system.
  • the gramophone motor thus being set into operation moves the' member 14 of the. knife switch 14, f5 into the position shown in chain dotted lines for the purpose specified and simultaneously drives the transmission mechanism A.
  • mounted on the shaft ll of the transmission unit A then operates the' lever mechanism 3!, 33, 35 to lift the dial into operative position whereupon the dialling operation is effected, as described above,
  • the pin or cam member if moves the supporting member 51 away from the arm 58 and moves under the roller 49 of said arm ill to gradually lower the sound box 38 onto the record, as above described, whereupon the message or alarm is transmitted to the police, fire, or other station with which communication has been established.- As the sound box travels across the sound record during the producing and'transmitting of the message or alarm, the pin or cam II moves into position again to engage the roller 48 of the arm 5
  • the ratio of the gearing of the transmission unit A must be such that the shafts I. and ii drive the mechanism B and C respectively, at predetermined relative speeds, and that the cam 2! for operating the dialling mechanism B. and the pin or cam ii for operating the mechanism C, for lifting and lowering the sound box onto the record, mustbe so arranged on the shaft ll rela-;
  • an automatic alarm device including a gramophone having a record carrying turntable and a driving shaft therefor, said gramophone further having a sound box supported for movement into and out of engagement with a record on said table, the combination with means to effect raising and lowering of the sound box, means to swing said sound box across said table, a signal transmitting device including a dial, a shaft driven from said turntable shaft, and a from said driven shaft to the sound box controlling mechanism and the dialing mechanism.
  • an automatic alarm device including a gramophone having a record carrying turntable and a driving shaft therefor, said gramophone further having a sound box supported for movement-into and out of engagement with a record on said table, the combinationwith means to effectraising and lowering of the sound box, means to ,swing said sound box across said table, a signal transmitting device; including a dial, a shaft driven from said turntable shaft, a bevelled gear on said driven shaft, a third shaft extending laterally from the driven shaft, a bevelled gear on the third shaft meshing with the bevelled gear on the. driven shaft, a gear fixed to the movable element of the dialing device, and a gear on the third shaft meshing with the last mentioned gear;
  • an automatic alarm device including a gramophone having a record carrying turntable and a driving shaft therefor, said gramophone further having a sound box supported for movement intoand out of engagement with a.
  • a signal transmitting device including a dial, a shaft driven from said turntable shaft, a bevelled gear on said driven shaft, a third shaft extending laterally from the driven shaft, a bevelled gear on the third shaft meshing with the bevelled gear on the driven shaft, a gear fixed to the movable element of the dialing device, a gear on the third shaft meshing with the last mentioned gear, and other gearing actuating the tone arm controlling means.
  • an automatic alarm device including a gramophone having a record carrying turntable and a driving shaft therefor, said gramophone further having a sound box supportedfor'movement into and out of engagement with a record on said'table, the combination with means to effect raising and lowering of the sound box, means to swing said sound box across said table, a
  • a signal transmitting device including a dial, a shaft driven from said turntable shaft, a bevelled gear on said driven shaft, a third shaft extending laterally from the driven shaft, a bevelled gear on i the third shaft meshing with the bevelled gear on the driven shaft, a gear fixed to the movable element of the dialing device, a gear on the third shaft meshing with the last mentioned gear, other gearing actuating the tone arm controlling means, said other gearing including a driving shaft for the tone arm controlling means, a worm wheel on said driving shaft, a worm on said driven shaft.
  • a camming disk fixed on the driving shaft for the tone arm controlling means, means to raise 1 and lower the gear on the dialing mechanism into and out of mesh with the gear on the thirdshaft, and operating means for the last mentioned means controlled by said camming disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Toys (AREA)
  • Telephone Set Structure (AREA)
US172461A 1936-11-04 1937-11-02 Automatic burglar, fire, or like alarm Expired - Lifetime US2161525A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201139X 1936-11-04
GB190837X 1937-08-19

Publications (1)

Publication Number Publication Date
US2161525A true US2161525A (en) 1939-06-06

Family

ID=26253826

Family Applications (1)

Application Number Title Priority Date Filing Date
US172461A Expired - Lifetime US2161525A (en) 1936-11-04 1937-11-02 Automatic burglar, fire, or like alarm

Country Status (5)

Country Link
US (1) US2161525A (en:Method)
BE (1) BE424390A (en:Method)
CH (1) CH201139A (en:Method)
GB (1) GB484308A (en:Method)
NL (1) NL61751C (en:Method)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518174A (en) * 1945-03-15 1950-08-08 Picking Alfred Samuel Horace Automatic alarm system
US2537599A (en) * 1946-09-03 1951-01-09 Mountstephen Edred Rabjohn Automatic burglar and fire alarm
US2661394A (en) * 1951-08-16 1953-12-01 Carsten J Munch Burglary and fire alarm
US2729707A (en) * 1950-06-07 1956-01-03 Mckellen Samuel Dunseith Telephonic apparatus
US2769032A (en) * 1951-03-12 1956-10-30 Strother John Telephone alarm
US2883460A (en) * 1953-07-14 1959-04-21 Anatol N Andrews Automatic transmission alarm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518174A (en) * 1945-03-15 1950-08-08 Picking Alfred Samuel Horace Automatic alarm system
US2537599A (en) * 1946-09-03 1951-01-09 Mountstephen Edred Rabjohn Automatic burglar and fire alarm
US2729707A (en) * 1950-06-07 1956-01-03 Mckellen Samuel Dunseith Telephonic apparatus
US2769032A (en) * 1951-03-12 1956-10-30 Strother John Telephone alarm
US2661394A (en) * 1951-08-16 1953-12-01 Carsten J Munch Burglary and fire alarm
US2883460A (en) * 1953-07-14 1959-04-21 Anatol N Andrews Automatic transmission alarm

Also Published As

Publication number Publication date
NL61751C (en:Method)
CH201139A (de) 1938-11-15
GB484308A (en) 1938-05-04
BE424390A (en:Method)

Similar Documents

Publication Publication Date Title
US2549548A (en) System for automatically transmitting and receiving telephone messages
US2161525A (en) Automatic burglar, fire, or like alarm
US2090574A (en) Automatic burglar and fire alarm
US2673241A (en) Telephone answering and recording device
US2099913A (en) Automatic telephone signaling apparatus
US3095478A (en) Telephone alarm device
US2191971A (en) Automatic burglar, fire, or like alarm
US3324245A (en) Ringing signal responsive, recording and control device
US2952740A (en) Telephone attachment
US2537599A (en) Automatic burglar and fire alarm
US2907828A (en) Burglar alarm system
US2036420A (en) Signal apparatus
US2175864A (en) Multicircuit timing switch
US2159650A (en) Fire alarm
US2661394A (en) Burglary and fire alarm
US2565881A (en) Juke box and television receiver control device
US1627612A (en) Alarm system
US1932925A (en) Automatic radioelectric standby device
US2202517A (en) Liquid level reporting apparatus
US2131565A (en) Automatic device for effecting telephone calls and transmitting signals
US2011636A (en) Alarm or signal sending system
US2362803A (en) Continuous sound recording and reproducing system
US2729707A (en) Telephonic apparatus
US1976296A (en) Telephone alarm device
US1993793A (en) Timing mechanism