US2522119A - Recording device for telephone transmitters - Google Patents

Recording device for telephone transmitters Download PDF

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Publication number
US2522119A
US2522119A US879690A US8796049A US2522119A US 2522119 A US2522119 A US 2522119A US 879690 A US879690 A US 879690A US 8796049 A US8796049 A US 8796049A US 2522119 A US2522119 A US 2522119A
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United States
Prior art keywords
cams
cylinder
cam
levers
recording device
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Expired - Lifetime
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US879690A
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English (en)
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Kaelin Pierre
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Individual
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Individual
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Publication of US2522119A publication Critical patent/US2522119A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • 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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
    • 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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc

Definitions

  • the invention relates to a recording device for telephone transmitters for recording code signs or the like, and in particular to a recording device to be used in connection with telephone installations for recording call signs or numbers.
  • the recording device in accordance with the present invention is applicable to the telephone installation disclosed and claimed in my copending application (corresponding to Swiss application No. 35,575).
  • An object of the invention is to provide such a recording.
  • device on which a code sign may be registered by means of a manually operable keyboard, dialing disc or the like, after which registration the recorded sign may be put through to the installation to which the device is connected at any desired moment.
  • movable cams on a frame which cam can be moved from a rest position to an operating position by means of a manually controlled keyboard, dialing disc or the like, in accordance with the code sign to be recorded, whereafter said frame may be moved with respect to a number of contact means which are thereby successively contacted by those of the cams that have been moved to the operating position.
  • Fig. 1 shows a perspective view of a recording device according to the invention.
  • Fig. 2 is an axial section of the device of Fig. 1.
  • Fig. 3' is a schematical elevation view showing a detail
  • Fig. 4 is a sectional view along line IV-IV of Fig. 3 showing a part of this detail.
  • the main body of the recording device is formed by a cylindrical frame I, mounted on a rotatable shaft 55 and provided on its surface with a number of evenly disposed longitudinal grooves 2 extending along generatrices of the cylinder.
  • a number of movable elements formed by cams 3 pivotally mounted by means of pins 4- which pins are perpendicular to and have their hearings in the side walls of the grooves.
  • the cams all have the same form and are provided with four projections, that is two bosses 31), 3d,
  • cams are thus distributed on the cylinder in several groups, each group being constituted by the cams in one and the same groove and the cams in the several grooves being like in number and similarly distributed. Only two of these cams are shown in Figure l and four in Figure 2.
  • each digit of the number is recorded in a different group of cams, each group including as many cams as there are digits possible, namely ten.
  • the number of the groups depends on the length of the numbers to be recorded or on the number of signs to be recorded simultaneously.
  • the cylinder is provided with eighteen grooves thus permitting the recording of a code sign with eighteen digits which is an improbable case or of two signs of nine digits each, or else of three signs of six digits each, etc.
  • cams are subjected to the action of wire springs 5 wound around the pins 4 and resting with their ends on the one hand on the bosses 3d and on the other hand on the bottoms of the grooves 2. These springs tend to maintain the cams in their rest position, in which the heel 3a rests on the bottom of the groove as shown by the position of cam 3 in Figure 2.
  • the cams may also occupy an operating position in which the boss lid is turned further outwardly from the groove, and the heel 3a is turned away from the bottom of the groove as shown by the position of cam 3 in Figure 2. In this position the cams are held by detent means cooperating with the nose 3c of the cams.
  • detent means comprise a number of small flat bars 9 slidably mounted in the grooves 2 and provided with a number of perpendicularly projecting check pawls 8.
  • Each groove is provided with such a bar a carrying the pawls for all the cams of the group, these pawls lying against the bridges of the noses 3c in the rest position of the cams.
  • On one end these bars 9 are articulated onto levers 2t pivotally mounted and radially arranged on one of the bases of the cylinder.
  • These levers 20 are subjected to the action of springs H9 in such a way that they tend to move the bars 9 in a direction contrary to the arrow l8 and thus keep the pawls 8 in contact with the cams 3.
  • the noses 3c of the cams are so formed that when a cam is turned from its rest position to its operating position its nose first pushes the contacting pawl 8 and thereby the bar 9 in the direction of the arrow l8 against the action of the spring it until the pawl falls behind the nose, thereby bolting the cam in its operating position.
  • a ring M is axially slidably mounted on the shaft E5 of the cylinder l in such a way that its face may contact the inner ends of the levers Illb.
  • a ring i3 is axially slidably mounted on the ring 14 with its face opposite the ends of the levers Illa.
  • the levers llla are shorter than the levers lllb and the levers lllb have a recess opposite the ring l3, so that the ring It cannot act on the levers Illa nor the ring IS on the levers Mb.
  • the rings are provided with circular grooves H6 in which forks (not shown) may be fitted to effect an axial shifting of the rings.
  • the rings When the rings are moved in the direction of the arrow l1, they push against the inner ends of the levers Illa, lb, which, turning around the pivots ll, shift the bars 9 in the direction of the arrow [8, thus releasing the cams in operating position, which thereupon return to their rest position through the action of the springs 5.
  • One-half of the bars 9 are controlled by the levers I la cooperating with ring I 3, and the other half by the levers lllb cooperating with ring Hi.
  • a row of contact members is alined above the cylinder and consists of pairs of contact blades 2! of a number equal to the number of cams 3 in a groove, namely ten.
  • One pair of blades is arranged opposite each cam in such a way that the several blades are actuated by the bosses 3d of the respective cams 3 when the latter have been moved to their operating positions.
  • the cylinder I may be caused to rotate by means shown in Figs. 3 and 4. Apart from an automatic rotation, it is necessary to provide for a stepwise rotation controlled by the keyboard 22, to the extent of a constant fraction of a turn at each step, said fraction corresponding to the angle enclosed b two grooves.
  • the rotation of the cylinder I is obtained by connecting it with a motor 23 through gears 24 and 25.
  • the gear 2 3 is secured on the shaft 26 of the motor and the gear 25 is loosely mounted on the shaft l5 of the cylinder.
  • a disc 21 is fixedly secured to this shaft and a disc 28, dependent on rotation with this shaft is slidably mounted on it.
  • the gear 25 is pressed between the discs 2'! and 28 through the action of a coilspring 29, what constitutes a friction coupling.
  • a ratchet wheel is fixedly secured on the shaft l5. This wheel cooperates with an anchor 3
  • the rela 33 actuates a lever 35 intended to lift the anchor 3
  • the rela 34 actuates a lever 36 intended to lift the anchor 3! in a middle osition in which the anchor is not cooperating with the ratchet wheel 30 thus permitting a continuous rotation of the cylinder l.
  • the device When the device forms part of a telephone set, it may serve to record a telephone call-sign, for instance existing of numbers only.
  • a telephone call-sign for instance existing of numbers only.
  • the subscriber then presses the ke of keyboard 22 which corresponds to the first digit of this number.
  • the relay 6, which is controlled by this ke is connected and the corresponding lever cooperates with the boss 3b of the cam located opposite this lever and thereby moves the said cam into its operating position, in which position it is maintained by a pawl S.
  • the stepwise advance of the cylinder I being likewise subject to the keys of the keyboard 22, the cylinder advances to the extent of one step, so that the next group of cams is turned opposite the levers l.
  • the signals may be of any length, being formed by letters or figures provided that the cylinder includes a suitable number of groups and a sufilcient number of cams in each group.
  • the cylinder shown is formed by a hollow body l in which grooves 2 are made.
  • the cylindrical frame could also consist, however, of two base checks of circular shape connected by braces fastened on the periphery of these cheeks, the cams being mounted on these braces, which would constitute the generatrices of the cylinder.
  • a recording device of the character described comprising a rotatable frame, a plurality of movable recording members mounted on said frame, said members being disposed in several groups, there being at least as many groups as there are elements in a code sign to be recorded, and there being at least as many movable members in each group as there are possible digits for each element of a code sign, means acting on said members to keep them in a rest position, manually controlled operating means for moving a member of l a group from said rest position to an operating position, means for turning said frame on'each of the successive manipulations of said operating means over such an angle as to-bring the groups of movable members successively under the influence of said operating means, means for returning said frame o its Z ro position after a code sign has been recorded, means for rotating said frame, and a series of contact means placed opposite said frame cooperating with each of said group of movable members respectively as said frame is rotated, in such a way that each movable member of a group, when moved to its operating
  • each of said lever means cooperating with a cam of said rows of cams, automatic means for turning said cylinder upon each manipulation of said levermeans over such an angle as to bring the several rows of cams one by one opposite said row of lever means, thus recording one element ofa code sign in each row of cams successively, a row of contact means arranged in a line parallel tosaid cylinder, each of said contact means cooperating with a cam of said rows of cams, so as to be actuated when said cam has been moved to its operatin position, and means for rotating said cylinder after a code sign has been recorded thereon, so as to bring each row of cams successively opposite said row of contact means.
  • a recording device in which said lever means for moving said cams from said rest position to said operating position are controlled separately and mechanically by a corresponding number of manually operable keys of a keyboard.
  • a recording device comprising a number of relays for actuating said lever means, there being one relay for each of said lever means, and a keyboard with a num ber of manually operable keys, each of said keys controlling one of said relays.
  • a recording device of the character described comprising a rotatably mounted cylinder provided with a number of axially extending parallel grooves evenly distributed over its periphery, a number of similar rows of oscillating cams pivotally mounted in said grooves, said cams being provided with a number of projections, spring means acting on said cams to keep them in a rest position, a number of manually controlled lever means arranged in a line parallel to said cylinder for turning said cams independently from said rest position to an operating position against the action of said spring means and in accordance with the code sign to be recorded, each of said lever means placed opposite a cam of said rows of cams and acting on a projection ofsaid cam, elastic pawl means in each of said grooves cooperating with said cams to keep a cam in its operating position after it has been moved thereto, a number of contact means arranged in a line parallel to said cylinder and actuated by a second projection on the respective cams when in operating position, means for turning said cylinder on each manipulation of said lever means over
  • 61A recordin device of the character described comprising a rotatably mounted cylinder provided with a number of axially extending parallel grooves evenly distributed over its periphery, a number of similar rows of oscillating cams pivotally mounted in said grooves on pins perpendicular to the axis of cylinder, said cams being provided with a, number of projections, a spring acting on each cam'to keep it in a rest position wherein one of said cam projections rests on the bottom of said groove, a number of lever means arranged in a line parallel to said cylinder for moving said cams from said rest position to an operating position, each of said lever means placed opposite a cam of said rows of cams and acting on a second projection of said cam, a bar slidably mounted in each of said grooves, said bar having a number of pawls cooperating vvith a third projection on said cams in'such a Way that a cam of a row is held by a corresponding pawl of said slidable
  • a recording device of the character described comprising a rotatably mounted cylinder provided with a number of axially extending parallel grooves evenly distributed over its periphery, a number of similar rows of cams pivotally mounted in said grooves on pins perpendicular to the axis of said cylinder, said cams being capable of occupying a rest position and an operating position and being provided with a number of projections, a spring acting on each cam to keep it in said rest position wherein one of said cam projections rests on the bottom of said groove, a number of lever means arranged in a line parallel to said cylinder for moving said cams from said rest position to said operating position, each of'said lever means placed opposite a cam of said rows of cams and acting on a second projection of said cam, a bar slidably mounted in each of said grooves, said bar having a number of pawls cooperatin with a third projection on said cams in such a way'that a cam of a row is held by a corresponding corresponding
  • a telephone set with a recording device for recording call-signs to be put 8 through over the line at a desired moment
  • said recording device comprising a rotatable frame, a, plurality of movable recording members mounted on said frame; said members being distributed in severel groups, there bein at least as many groups as there are elements in a code sign to be recorded, and there being at least as many movable members in each group as there are possible digits for each element of a'code sign, means acting on said members for keeping them in a rest position manually controlled operating means for moving a member of a group from said rest position to an operating position, means for turning said frame on each of the successive manipulations of said operating means over such an angle as to bring the groups of-movable members successively under the influence of said operating means, means for'returning said frame to its zero position after a code sign has been recorded, means for rotating said frame, and a series of contact means placed opposite said frame cooperating with each of said group of movable members respectively as said frame is rotated

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Pivots And Pivotal Connections (AREA)
US879690A 1948-06-14 1949-04-16 Recording device for telephone transmitters Expired - Lifetime US2522119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH671052X 1948-06-14

Publications (1)

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US2522119A true US2522119A (en) 1950-09-12

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US879690A Expired - Lifetime US2522119A (en) 1948-06-14 1949-04-16 Recording device for telephone transmitters

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US (1) US2522119A (enrdf_load_stackoverflow)
BE (1) BE489569A (enrdf_load_stackoverflow)
CH (1) CH272956A (enrdf_load_stackoverflow)
FR (1) FR1013988A (enrdf_load_stackoverflow)
GB (1) GB671052A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861131A (en) * 1954-01-27 1958-11-18 Siemens Ag Automatic telephone system
US2905936A (en) * 1954-01-27 1959-09-22 Standard Coil Prod Co Inc Memory delay unit
US2941043A (en) * 1957-08-13 1960-06-14 Bell Telephone Labor Inc Magnetic drum repertory dialer
US2953647A (en) * 1956-11-09 1960-09-20 Bell Telephone Labor Inc Magnetic drum repertory dialer
US3017024A (en) * 1953-06-01 1962-01-16 Fmc Corp Classification and recording machine for handling eggs
US3098899A (en) * 1962-02-13 1963-07-23 Automatic Elect Lab Universal spotter cam arrangement
US3217313A (en) * 1963-01-07 1965-11-09 Naxon Irving Traveling message sign control apparatus having direct magnetic selection switch control elements
US3217312A (en) * 1961-10-14 1965-11-09 Naxon Irving Traveling message sign control apparatus having rotating members which bear switch actuating elements
US4522518A (en) * 1983-07-07 1985-06-11 Schmidt John R Character data input keyboard arrangement having central matrix of keys

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935251A (en) * 1954-11-01 1960-05-03 Ibm Data storage apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1972289A (en) * 1928-01-10 1934-09-04 Chauveau Louis Lucien Eugene Automatic transmitter key for distress signals
US2395539A (en) * 1943-12-31 1946-02-26 Bell Telephone Labor Inc Telephone call transmitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1972289A (en) * 1928-01-10 1934-09-04 Chauveau Louis Lucien Eugene Automatic transmitter key for distress signals
US2395539A (en) * 1943-12-31 1946-02-26 Bell Telephone Labor Inc Telephone call transmitter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017024A (en) * 1953-06-01 1962-01-16 Fmc Corp Classification and recording machine for handling eggs
US2861131A (en) * 1954-01-27 1958-11-18 Siemens Ag Automatic telephone system
US2905936A (en) * 1954-01-27 1959-09-22 Standard Coil Prod Co Inc Memory delay unit
US2953647A (en) * 1956-11-09 1960-09-20 Bell Telephone Labor Inc Magnetic drum repertory dialer
US2941043A (en) * 1957-08-13 1960-06-14 Bell Telephone Labor Inc Magnetic drum repertory dialer
US3217312A (en) * 1961-10-14 1965-11-09 Naxon Irving Traveling message sign control apparatus having rotating members which bear switch actuating elements
US3098899A (en) * 1962-02-13 1963-07-23 Automatic Elect Lab Universal spotter cam arrangement
US3217313A (en) * 1963-01-07 1965-11-09 Naxon Irving Traveling message sign control apparatus having direct magnetic selection switch control elements
US4522518A (en) * 1983-07-07 1985-06-11 Schmidt John R Character data input keyboard arrangement having central matrix of keys

Also Published As

Publication number Publication date
CH272956A (fr) 1951-01-15
FR1013988A (fr) 1952-08-06
BE489569A (enrdf_load_stackoverflow)
GB671052A (en) 1952-04-30

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