US1857107A - Apartment house telephone - Google Patents

Description

1932- J. o. CADIEUX 1.857,107

APARTMENT HOUSE TLPHONE Filed June 4, 1930 2 Sheets-Sheet l fase/a/0 0. Mzleag May 3, 1932. J. o. CADIEUX APARTMENT HOUSE TLPHONE Filed June 4, 1950 2 Sheets-Sheet A A Il uud Ptented May 3, 1932 UNIIED STATES PATENT orner.

JOSEPH O. CADIEJX, 01: MERIDEN, OONNECIICUT, ASSIGNOR T CONNECIICUT TELL PHONE &: E4EC'BIC CORPORATION, OF.MERIDEN, CONNECIIOU'I, A CORPORATION OF DELAWBE Application 1lled June 4,

My invention relates to systems and apparatus particularly for use in what are commonly termed apartment bouses, where it is customary to have the telephone transmitter and receiver in the vestibule connected to transmitters and receivers of the respective apartments. The push buttons are located in the vestibule for controlling the signal devices in the various apartments. It is also customary to provide push buttons at the tradesmens entrance for attracting the attention of the occupants of the various apartments. It is also customary to employ push buttons at the entrance to each individual apartment for ringing the bell or other s1gnal in the corresponding apartment.

One of the objects of my invention is to combine features such as above mentioned and provide a.-diffe'rent charaeter of signal to indicate the approach of the visitor to the vestibule and to the apartment door.

Another object is to provide means for automatically connecting and discon'necting the signal devices so that there is no possibility of interference between them in the normal and expected use of such a system.

Another object is to provide means for enabling the occupant of the apartment t0 deterfnine when the vestibule door is open.

In carrying out the invention I ut1lize the diaphragm of the apartment receiver as one of the signal devices which is operable by pressing one of the vestibule buttons when the receiver is on the hook in the apartment. A se arate bell or buzzer is provided operated liy .a push button at the apartment door.

Separate sources of current are preferably provided for the t-Wo signal devices and the hook switch is 50 connected that the apartment receiver is in circuit with one source of power and its vestibule push button when the hook switch is down and the apartment receiver is in circuit with the apartment transmitter and the other source of current and the vestibule transmitter and receiver when the hook switch is up. The apartment bell is in circuit with one source of current without interfering with the telephone talking circuit.

I have also combined with these circuits a 'nmmmrr nousE rmmnom' 1930. smu No. 459,143.-

door release or opener device actuatedbypush buttons in the various apartments and a signal li ht in each apartment adapted to be hghte by the dcpressing of a push switch in the apartment when the vestibule door is open.

In the drawings Fig. 1 is an interior view of the part of the apparatus to be installed in an individual apartment.

Fig. 2 is a vertical sectional view of the parts of an apartment unit showing the reciver and the hook switch.

Fig. 3 is a fragmentary front view showing the Wall connecting plate and signal light.

Fig. 4 is a detail plan view.

Fig. 5 is a diagrammatic view showing the circuits of a typical system embodying my invention.

The instrument in each apartment prefer- -ably consists of a casing having a back plate 10 and a front portion 11 secured together with tubular studs 12-12 which are secured to the back plate and the screws 1313 which pass through the front plate into these studs. The transmitter 14 may be of any suitable type preferably mounted inside the casing. The receiver 15 may be of any suitable construction having a diaphragm 16.

The vestibule instrument is preferably of the type of my Patent #1,181,947 having a transmitter 14 and a receiver 15 which are preferably of the the so-called cordless type cnnected in the circuit in any satisfactory manner.

The bell 17 is also preferably mounted in the casing and surrounds the transmitter clement 14.

The current for operatin the diaphragm 16 as a buzzer and for ringmg the bell 17 is furnished by the secondary of the transformer 18 from ordinary power lines or otherwise. The push button switch 19 in the vestibule has its contacts connected in circuit with the secondary of the transformer 18 and with the coil of the receiver 15 and the hook switch 20 when the receiver is in the position shown in Fig. 2.

The battery 21 is in series with the vestibule transmitter and receiver and the apartment transmitter and receiver when the hook switch is released, as will be understood hereinafter.

The switch 22 in the apartment controls a circuit through the door opener coil 23 and also 9. circuit through the door controlled switch 24 and a signal light 25.

' closed through the secondary of the power transformerl8 and through the circuit of the signal bell 17. When the switch 22 is pressed the circuit is completed through'the magnet of the door opener 23 and the secondary of the transformer 18 so as to permit the vestibule door to be opened. If this switch 22 is held closed the light 25 will flash as soon as the door opens and closes the circuit through the door switch 24.

The numbers and letters within the circles in Fig. 5 represent the markings of the respective terminals of the instruments for the purpose of tracing circuits when installing the apparatus. T indicates the transmitter connection in the vestibule instrument; B indicates the talkin battery connection; R, the ringing circuit; %1 represents the connection t0 suite 1, etc.

In the practical form of apartment instrument shown an insulating block is secured to the back plate 10 by rivets 31. The circuit wires are led into the casing through the opening 32, spring contacts fingers or sockets 33 are secured to the block 30 by rivets 34 and rovided with binding screws 35 for conven- 1ence in wiring.

The front member of the casing is provided with a series of plug-in blades 36 serv-' ing as terminals for the casing electrical connections shown in Fig. 1. These blades 36 may be anchored to inserts 37 moulded into the casing part.

The bell 17 'is secured by screws 38 t0 cross piece 40 supported on the flange 41 in the casing. The coil 42 of the vibrator for actuating the'bell is supportcd by a bracket 43 which is suitably secured in the casing. The vibrator armature 44 serves as a striker for the bell and actuates make and break vibrator switch 45. A conductor strip 46 connects the plug-in blade No. 2 with the bar 43 which is electrically connected to the armature and the movable contact of the vibrator switch 45. The stationary contact of the vibrator switch is connected to one end of the coil 42 and the other end of the coil is connected b the conductor strip 47 to the plug}-in bla e No. 3.

1 e cord 50 which carries the conductor to the receiver 15 bas une end 51 connected to the plug-in blade No. 2 and the other end 52 connected to the binding post 53 and theswitch contact sprin 54. Another switch contact spring 55 is'e ectrically connected to plugin blade No. 5. The two conductor members 51 and 52 may be conveniently me chanically anchored to clip 56 in the casing. The hook switchcontact spring 57 is electncally connected by conductor strips 58 and 59 to one terminal of the microphone transmitter 14 whose other terminal is connected by strip 60 to plugin blade No. 6.

The switch actuating lever 61 is pivoted on the pin 62.within the tube 63 and under tension of the sprin 64 so that the frontend of the lever 61 ten S te rise under pressure of the spring and is depressed by the weight of the receiver 15 which has a 100p 65 adapted to be hung on the lever.

A secondary lever 66 mounted on the stud 67 has a receiver cord attached to it by the extension 68 so that when the receiver is left off the hook its -weight will pull the lever 66 into the position shown in Fig. 1 where it is point.

The push button switch 22, previously referred t0, has a spring arm 70 connected to the pIug-in blade No. 1 and is actuated by push button 71. The bus bar 72 serves as a stationary contact of the switch 22. The movable or spring contact member 70 is also arranged when .dcpressed to engage a stationary contact 73 which is connected b. conductors 74 and 75 to the plugin blade o. 4. The bus bar 72 is connected by conductor 76 to the plug-in blade No. 2.

The signal lamp 25 hais terminal clips 78 and 79 connected respectively to the wall socket terminals 7' and 4 which receive the plg-in blades 7 and 4 respectively. The lamp 25 may conveniently be of the type frequently used in telephone practice for signaling and a guard 100p 80 may be secured to the back of the wall plate to protect the same.

It will be seen that the construction herein shown and described is substantially of the plug-in type of my Patent #1,7l7,091 but it should be understood that the present invention is not limited to this type of construction.

It will be understood that the invention is of course applicable to any number-of suites or.apartments and that the circuits may be connected to annunciators not shgWn, as is nal energy.

customary in apartment house telephone practice.

It will be seen that this system provides for two distinctive types of signals without addihg to the parts ordinanly employed. The receiver and its diaphragm provide for a buzzing type of signal actuated by alternating current from the transformer to notify the occupant of the apartment that someone is waiting at the vestibule. 'The bell 17 signal indicates that someone is waiting at the.

-door to the particular apartment. When the. receiver is taken' from the hook to listen the signal circuit to the receiver is disconnccted and the talking circuit completed so that it becomes impossible for anyone t0 energize the receiver diaphragm with the signaling current when the receiver is in use for telephone reception.

The bell circuit through coil 42, however, is in condition for operation at all times and preferably derives its circuit from the same transformer which sup lies the receiver sig- When A. is used for the ringing circuit, of course the make and break switch 45 is not necessary and if desired it may be shunted by a connection S, as shown by the dotted line in Fig. 1, so that current passes from 43 through the magnet frame, through shunt S direct to the coil 42 and thence to condflctor strip 47.

The transformer 18 also preferably furnishes the current for actuating the door opener 23 and the signal Iight 25. For convenience in installation and operation it is preferred that the transformer for signaling and the talking battery be both located adjacent the vestibule or janitors suite and arranged to supply current for the apparatus for all the apartments as well as the vestibule devices.

Bradly considered, it should be understood that 'various forms of hook switches might be employed as shown herein or as shown in Fig. 13 of my application #442,010 filed April 5, 1930, in which I have claimed certain features of the visual signal system. It should also be understood that broadly considered the apartment telephone transmitter may be located within the casing as shown herein or in combination a hand instrument as shown in Fig. 12 of my application #442,010.

' in which case of course the switch actuated by the receiver is located in the base of the portable instrument or such a combination hand receiver and transmitter may be em ployed with a wall type casing containing the signal bell and hook switch as shown in my Patent 1,824,705.

I clai1n:

1. An apartment house telephone systen comprising vestibule and apartment transmitters and receivrs and circuits thercfor including a source -of current. a vestibule switch and an apartment hook switch for 2. An apartment house telephone system comprising vestibule and apartment translnitters and receivers, a talking battery and circuits therefor, a source of signalling current, a vestibule switch and an apartment hook switch for connecting the apartment receiver in circuit with the source of signalling current and the vestibule switch when the receiver is on the hook switch, said hook switch having contacts for opening the signalling circuit and closing the talking circuit when the hook switch is up.

3. An apartment house telephone system comprising a vestibule transmitter and receiver a series of apartment transmitters and rece1vers, a talking battery and circuits therefor, a. source of signalling current, an apartment hook switch for connecting the apartment receiver in circuit with the source of signalling current, vestibule switches with connections t0 energize the apartment receivers when the receivers are hung up, said hook switches having contacts for opening the respective signalling circuits and closing the respective talking circuits.

4. In an apartment house telephone system, a transmitter, a receiver, and circuits therefor includinga source of current, a vestibule switch and an apartment hook switch for connecting the apartment receiver in circuit with the source of current, said hook switch having contacts for opening the circuit through the vestibule switch and closing the talking circuit, a signal bell connected with the source of current and a local apartment switch for controlling the circuit through the signal bell Without interfering with the receiver.

5. In an apartment house telephone system, a transmitter, a receiver, a talking battery therefor, a source of signalling current, a vestibule switch and an apartment switch for connecting the apartment receiver in circuit with the source of signalling current and the vestibule switch, said apartment switch having'contacts for opening the signalling circuit and closing the talking circuit.

6. In an apartment telephone system, an apartment transmitter and receiver, an audible signal device, a visual signal device, an intcrior manually operable switch, an exterior local switch for controlling the signal device, a manually operable stibule switch, a dom actuated switch for flashing the visual signal device, a door release device controlled by the interio'r manually operable switch,a source of signalling current for all of said devices, a. talking battery,* for the transmitter and receiver and an apartme nt switch for connecting the receiver in circuit with the vestibule switchand the source of signalling current and for connecting the talking battery to the receiver and cutting out the signalling current.

' 7. In an apartment bouse telephone system, the combination of a receiver, a. 'transmitter and an audible signal device a. source of alternating current for actuatmg the receiver as.a buzzer, a source of direct current for the talking circuit and a switch for disconnecting the receiver from the source of alternating ,current and connecting it to the source of direct current.

' JOSEPH O. CADIEUX.

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