US2489396A - Dictation recording system - Google Patents

Description

Nov. 29, 1949 I L. J. BOWNE 2,

DICTATION RECORDING SYSTEM Filed June 24, 1947 o o k 11 a Q g 3 :2 w 4 R GM .2 s g m k E v Q) E Q O B o:

E E Q Q INVENTOR L.J.BOWNE l ATTORNE Y Patented Nov. 29, 1949 r 2,489,396

umreo STATES PATENT OFFlCE DICTATION RECORDING SYSTEM Langford J Bowne, Howard Beach, N. Y., assignor to Bell Telephone Laboratories, Incorporated, New York, N. Y., a corporation of New York Application June 24, 1947, Serial No. 756,710 1 Claim. (Cl. 179-6) This invention relates to telephone dictating from ground, lower front contact of relay 6, consystems, and more particularly to systems for the tact M of key 8, and lamp I l to battery, and also recording of dictation transmitted over a telethrough buzzer l2 and its self-interrupting conphone line from a dictating station. tacts and lower back contact of relay 1 to battery. A feature of the invention resides in a tele- 5 Relay 6 also closes at its upper contact a cirphone line circuit arrangement connecting a cuit to energize the second audible signal or telephone at a dictators desk with an attended buzzer l3 which includes upper contacts of relay station at which switching mea ,under control I, outermost right contacts 24 of relay Ill and of an attendant are provided for starting a phonoself -interrupting contacts and winding of buzzer graphic recording'machine comprising an elec- 10 I3. I tromagnetic recorder for impressing sound waves The attendant observing the calling signals reon a record member and for connecting said line moves the receiver of telephone 2 from the to said recorder, said inventive feature comprising switchhook thereby operating relay 1 which opens other means for maintaining said machine in its upper and lower contacts thereby silencing operation under sole control of the dictators buzzers l2 and i3 and upon being informed by the dictator that he wishes to be connected to a telephone switchhook.

The invention will be understood from the folmachine for dictation, operates key 8 and lowing description and accompanying drawing m m n rily presses key 9. which shows a dictators telephone, of the con- Key 8 opens its contacts l4 thereby opening the on battery type, connected t a circuit for the line lamp II which is'thereby exline L extending a recording station at which tinguished an 0105651115 contacts l nd station is located, an attendants telephone 2, and Closure of Contact 18 p pa s a circuit for a dictating machine 3 which may be of any relighting lamp II when relay 6 releases due to well-known type employing an impressible cyli ithe dictator replacing his receiver on'the hook der, disc or magnetizable wire. and closure of contacts l9 completes a circuit-to Direct current blocking condensers 4 and 5 are light a Second mp 0 which an be traced from introduced in the line at the recording station ground, lower front contact of relay 6, contacts and battery supply relays 6 and I are bridged B9 of key 8, lamp 20, contacts 2| of relay ID to across the line on each side of the condensers thus battery. Closure of contacts l5 and I6 of key 8 providing battery supply to the dictators teleconnects the two line conductors over conductors phone and also to the attendants telephone. H to the recorder mechanism of the dictating A key RK is' introduced in the line to enable the machine 3. attendant to ring the dictators station if de- Operation of key 9 initiates operation of the sired and a key. 8 is provided for connecting the recording machine by operating relay In which recorder or thelmachine 3 to the line. A start closes its contact 22 thus completing a circuit to key 9 is also provided to initiate operation of the energize the driving mechanism of the recording recording machine by closing an energizing cirmachine. cuit for relay in which in operating closes a cir- Closure of contact 23 of relay [0 completes a cult for any desired driving means, such as a locking circuit for itself from ground at the upper t r, 40 contacts of relay 6. Further, when contact 2! Alamp H and buzzer l2 are controlled by relay opens, the circuit for lamp 20 is opened which 6 and when energized act as audible and visual was closed when key 8 was operated, thus exline signals when the dictating station receiver tinguishing this lamp.

is removed from the switchhook. When the at- The dictator now proceeds with his dictation tendant answers, the audible signal I2 is silenced. and the attendant hangs up thereby releasing A second buzzer I3 is also energized over contacts relay 1 which closes its upper and lower contact. of relay 1 by the operation of relay 6 which is Lamps H and 20 are extinguished and buzzers I! also silenced when the attendant answers. and 13 are silen The operation of the system will be understood In case the dictator desires to pause in his diefrom the following description. Assuming that tation and call in the attendant to give her any the dictator desires to be connected to a recording instructions, he will momentarily depress (flash) machine, the removal of his telephone receiver his switchhook thereby momentarily releasing reoperates relay 6 thereby closing its lower front lay 6 which opens its upper contacts thereby contact to light the line lamp H and sound the breaking the previously mentioned locking cirbuzzer H, the circuit for which can be traced cuit for relay In which thereupon releases thereijb which looks up by opening its contact machine.

lay 6 again operates due to the reclosure of the line circuit when the switchhook contact of the dictators telephone again closed.

Release of relay in also closes its contacts 2| and 24. Closure of contact 2| iprepares a circuit is closed when relay 6 refront contact of relay 5, remains operated, lamp 20 and contacts 21 of relay H) to battery.

Closure of contact 24 of relay 1'0 oompletesa'cirnotin the lighted lamp 228 and operation of buzzer 1 3 removes her receiver and opens its upper contacts buzzer 13.

relay I 6 reoperates and locks as before thereby opening its contacts 2! and extinguishing lamp 2 0.

iota-tor is ready to continue dictathen the d in g'he will again flash his switchhook to stop the LANGFORD J. BOX/FINE.

REFERENCES CITED I The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,454,157 Egerton May 8, 1923 1,993,870 Belliveau Mar. 12, 1935 2,200,351 Whitehead May 14, 1940 2,329,107 Clausen Sept. 7, 1943' 2,333,235 Clausen Nov. 2, 1943

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