US1556904A - Automatic calling device - Google Patents

Automatic calling device Download PDF

Info

Publication number
US1556904A
US1556904A US494281A US49428121A US1556904A US 1556904 A US1556904 A US 1556904A US 494281 A US494281 A US 494281A US 49428121 A US49428121 A US 49428121A US 1556904 A US1556904 A US 1556904A
Authority
US
United States
Prior art keywords
gear
dial
impulse
cam
wheel
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
US494281A
Other languages
English (en)
Inventor
John G Blessing
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
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 Automatic Electric Co filed Critical Automatic Electric Co
Priority to US494281A priority Critical patent/US1556904A/en
Priority to US508478A priority patent/US1556905A/en
Priority to FR545783D priority patent/FR545783A/fr
Priority to FR26710D priority patent/FR26710E/fr
Priority to FR27583D priority patent/FR27583E/fr
Application granted granted Critical
Publication of US1556904A publication Critical patent/US1556904A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions

Definitions

  • the liiy invention relates to' impulse sending devices of the dial type in which the impulses ere' generated endV transmitted ⁇ successively in dente series according to denite digits siter nuxmipulatim of the died.
  • the inventiony relates to devices of the above type in which the action of the' impulse mechanism of the dial, when influencing the latter, is automatically controlled b e governor, and the impulses are generute by the action of an interrupter, ,commonly Sind hereinafter termed the impulse cam, whichlatter as well as its governer, ere drivenv from the dial b means of sppropriate geen* transmission.
  • f 'illhev object .of lthis invention is to provide a. more simplified lmethod of accomplishing the shove results,-thus making-the. device more desireble from an economical and commercinl viewpoint.
  • Figure 1 is a front view of the device showin the power spring exposed 'by the remova of the cover plate shown in Figure Figure 2 is ay rear view of the device show-v;
  • Figure 4 is an axial section of the wholeldevice takenl on the line I ⁇ VIV of the Figy ure 3 and viewed in the direction of the arrows indicated therein.
  • c Figure 5 illustrates more clearly the parte of the mechanism for displacin the shaft dial inthe normal position of the parts.
  • Figure 6 shows mja similar figure the same' mechanism when 'the dial is'in of- Toip'revent the finger holdv dial from sli ping oi the stem 3a.
  • vit ⁇ is rotatably rhe d ⁇ therein by a y screw. is provided-with a lateral lug 4 to vscrew/1.
  • the hen-d of this receive one .end of azsspiral power 5, the otherend of notchor to aslug of ev cup 6, forming artof or externally secured tothe finger vho d dial andservin ⁇ as e protectinv casing for that sprin he'ingerhold diujl is, asv-usual, provi ed lwith ten or eny'oth'er requisite numberof finger holds which register with Spring which is secured in a* (lli "of the ⁇ impulse cam and thev stop ook for the device comprises the usual thefnumeralsfor.'letters' on the usual; 4
  • a compound gear comprising a ratchet wheel 1li and a gear 30 having a common hub. Secured to the upper side of the-finger hold reject down into the ath of a ratchet pawl 7 in uenced by a s ring 8. Secured to the under side o??
  • the linger hold dial close to its eriphery is a pin '9 which, at the end of t e return increment of the dial Il is adapted to stop screw 12 projecting into its path .trom the :indiening lug 1G o the usual fixed linger step 11, thereby preventing the dial from the teeth 1ais having moved back-ward beyondits normal position. Ilhis stopping arrangement is not necessary but is desirable when making certain adjustments, the important stopping associated with the gear 26 and the oase 3 will hereinafter be explained.
  • The' spring S normally1 tends to hold the pawl 7 in engagement with the teeth of ratchet Wheel la so that'asthe dial is r0- tated forward in the direction-of the arrow fi.
  • Fig, 1 (for setting) the pawl 7 rides over the ratchet wheel 14, and upon the release and return movement of the l engages said teeth to canse the ratchet wheel lto be rotated with the dial.
  • the cover plate shounin Fig. 7 is shaped nt crei the cup (i and may be secured to the dial in any known manner.
  • the shallow housing 3 is provided rear- With a cup shaped circular liange (Figs. el and 5) forming' a circular cavity 'l accommodation of the centrifugal provided with. a thickened the impulse 15 for t governor 21 and portion 151l for the mounting of springs 16 and 17, and ojl the 18 and 19 and with a thickened portion 15b joni'nelled in which is the shaft of the im-l pulse g# nieratinp, ⁇ or interrupter cani 20,'and other related thereto.
  • the springs 16 yand ⁇ 17 are repeatedly in the operation of the device by the Wherebj7 impulses are generated whi'e 4the springs 18 and 15)v are closed as the dial 1 moves oflnornuilv to shunt the talking equipment of the telephone during impulses.
  • vthe impulsesprings 16 und 17 and vthe shunt springs 18 and 19 are arranged directly :there one another and the top spring 19 is lcngthen'ed so that normally the Afree end ot the shaft of the can/1.20 is in contact With the-cud of the spring 19 holding ythe latter under tension.
  • the insulating ⁇ material is, as shown, semi-circular vin form so as to break the contact between the interruptor is oi great advantage
  • the opposite face of the gear wheel 26 adjacent to the bottom of the shallowr casing 3 is provided with a circular slot 2 into which projects from its upper side a pin 2* so that. inthe position .of gear Wheel 2 6 shown in Figs. 4 and 5, and when the linger hold dial is in itsnormal position, said pin engages the end of the stop screw fitted' in the lug 15".
  • the cam with shaft 27 are displaced inwardly by the pressure of tbe spring 19 and the pins 2b and 15 are.l as shown. removed one from the'other and therefore relatively out of eng'agement; when in engagement these pins a stop lock against continual rotation of the cani 2O and the-gear by which it isv operated.
  • the configuration of the cam -28 is such as to cause the shaft 27 and the impulse cam 2() to be forced outward against thc tension of the springr 19 as the dial 1 duringT its return rotation passesthrough the final portion of itsvmovemcnt just before reaching to rise this geur wheel 1s a normal.
  • a central shaft 32 Projecting axially from a late 34 (Fig. 4.) between which and the dial 1 the compound gear 14, 80 is confined, is a central shaft 32 which-extends right through and bevond thecavitjy jfornied by thc flange 15 whichaccommodates the centrifugal governor.
  • this governor consistsl ns clearly seen in Fig-ure 2. of a resilicnt plato 2l.'extendingdiagrunnnatically across the cavity, and carrying at each end a circularly curved arm 21 fitted with a Weight 22 of which the sides adjacent to the inner periphery of the flange 18 are coated with rubber or other friction material.
  • a spider having' threev or four radial arms, each fittedwith a weight, may of course, be used if desired.
  • This governor ee shown, ie fitted axially but iooeely, on the shutt 32 by means of e boss 32, ie edep'ted to be driven-by a gear 233 oi? e. ratchet Sind gear unit, which is ioosely mounted on the shaft 32.
  • the governor body is provided With a pei-vl 2li engoging the ratchet teeth 25 of the unit eo that the governor is rotated by the rotation of the gear 33,- but is free to revolve end to continue ite rotation thereon zitter the geni: hes stopped thus being relieved from any Vietnamese strain es would otherwise be exerted thereon by 'e .sudden etoppege of the geur vvheoi..
  • What il claim as my invention is: ram for operating said springs, a wear train l. in .an impulse sending device, a mount for ch-iving said cam. a E'roove 1n t .eside of ing plate having a' spring and roller device one 'of said gears, an obstruction in said attached thereto, a finger hold dial having groove, n pin cooperating with said obstruca shoulderalhmd thereto, a gear driven cani', tion to limit the movemfnt ot' the gear train, 80 a sourceot power for driving said cam and and means for moving sui-'i gear parallel to dial, to move said shoulder'over said spring its axis 'and out of operative relation with and roller device to shift said cam.
  • a calling devi( e impulso sending device extending overvsaic gear and carrying mechanism, a gear for operating said. mecha 100 a roller-, a shoulder on the dial engaging-said nfsm, an obstruction on one side of the gear,
  • roller a sourceof power for moving said a pin in the path of .said obstruction for shoulder lto thereby move said gear und preventing rotation thereof, and means for shaft throughthe medium of said bracket moving thegear parallel to its axis to permit "m and roller while the dial is rotating. its rotation.
  • a calling device a. shaft lhaving -a l-l.
  • v pulse generating cam said-cam movable into mechanisln for rotating saidwshaft, means and out of its impulse generating position, a associated withisaid gear causing it to rotate gear for driving said cam, a mounting plate in diiierent planes, and means for limiting forsupporting said gear, a spring mounted the rotary movement'to a single revolution on said plate carrying a roller, a finger hold in one plane, said means being directly asdial for operating said gear, and moans on sociated with said gear.
  • the dial'for .moving said cam through the in a calling device a. source of power, medium of said roller.
  • G. n a calling device, impulse springs, 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Transmission Devices (AREA)
US494281A 1921-08-22 1921-08-22 Automatic calling device Expired - Lifetime US1556904A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US494281A US1556904A (en) 1921-08-22 1921-08-22 Automatic calling device
US508478A US1556905A (en) 1921-08-22 1921-10-18 Automatic calling device
FR545783D FR545783A (fr) 1921-08-22 1922-01-11 Perfectionnements aux dispositifs d'appel à cadran
FR26710D FR26710E (fr) 1921-08-22 1922-07-31 Perfectionnements aux dispositifs d'appel à cadran
FR27583D FR27583E (fr) 1921-08-22 1922-09-13 Perfectionnements aux dispositifs d'appel à cadran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US494281A US1556904A (en) 1921-08-22 1921-08-22 Automatic calling device

Publications (1)

Publication Number Publication Date
US1556904A true US1556904A (en) 1925-10-13

Family

ID=23963843

Family Applications (2)

Application Number Title Priority Date Filing Date
US494281A Expired - Lifetime US1556904A (en) 1921-08-22 1921-08-22 Automatic calling device
US508478A Expired - Lifetime US1556905A (en) 1921-08-22 1921-10-18 Automatic calling device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US508478A Expired - Lifetime US1556905A (en) 1921-08-22 1921-10-18 Automatic calling device

Country Status (2)

Country Link
US (2) US1556904A (fr)
FR (3) FR545783A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416692A (en) * 1945-09-11 1947-03-04 Bell Telephone Labor Inc Impulse transmitter
NL208105A (fr) * 1955-06-25 1900-01-01 Automatic Telephone & Elect
US3105122A (en) * 1960-05-09 1963-09-24 Bell Telephone Labor Inc Space saver dial
US3108159A (en) * 1960-05-09 1963-10-22 Bell Telephone Labor Inc Space saver dial
USD614965S1 (en) 2008-06-24 2010-05-04 Colgate-Palmolive Company Container
USD616758S1 (en) 2008-06-24 2010-06-01 Colgate-Palmolive Company Container
USD649059S1 (en) 2008-06-24 2011-11-22 Colgate-Palmolive Company Container
USD616759S1 (en) 2008-06-24 2010-06-01 Colgate-Palmolive Company Container
USD622607S1 (en) 2008-06-24 2010-08-31 Colgate-Palmolive Company Container
USD616309S1 (en) 2008-06-24 2010-05-25 Colgate-Palmolive Company Container

Also Published As

Publication number Publication date
FR545783A (fr) 1922-10-20
FR27583E (fr) 1924-07-31
FR26710E (fr) 1924-03-06
US1556905A (en) 1925-10-13

Similar Documents

Publication Publication Date Title
US1556904A (en) Automatic calling device
US1523468A (en) Calling dial
US1538354A (en) Electric-impulse-producing mechanism
US2252875A (en) Call transmitter device
US1641617A (en) Impulse-transmitting device
US1609982A (en) Automatic calling device
US1164626A (en) Impulse-transmitting mechanism.
US1593992A (en) Calling device
US1501281A (en) Automatic calling device
US1122615A (en) Sender.
US1200856A (en) Substation-sender.
US9505A (en) Improvement in magnetic printing-telec raphs
US1532677A (en) Automatic calling device
US2919311A (en) Dial switches for use in telephone or like switching systems
US2359841A (en) Telephone call transmitter
US1154250A (en) Operator's calling device.
SU68672A1 (ru) Устройство дл накоплени и отправлени телеграфных сигналов
US3209077A (en) Automatic telephone dialer
US871434A (en) Recorder.
US280616A (en) Automatic roll-call for telegraph-lines
US1221308A (en) Apparatus for transmitting impulses of current in electric circuits.
US906405A (en) Means for electrical transmission of designs, figures, and photographs.
US1098545A (en) Retractor for printing-telegraphs.
US323134A (en) Electro-magnetic speed-register for ships logs
US408093A (en) Registering and canceling ballot-box