US1670986A - Telegraph transmitter - Google Patents

Telegraph transmitter Download PDF

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Publication number
US1670986A
US1670986A US189662A US18966227A US1670986A US 1670986 A US1670986 A US 1670986A US 189662 A US189662 A US 189662A US 18966227 A US18966227 A US 18966227A US 1670986 A US1670986 A US 1670986A
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US
United States
Prior art keywords
contact
recesses
conductive
disk
pair
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
US189662A
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English (en)
Inventor
Riddle John
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.)
Telegraph Construction and Maintenance Co Ltd
Original Assignee
Telegraph Construction and Maintenance Co Ltd
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 Telegraph Construction and Maintenance Co Ltd filed Critical Telegraph Construction and Maintenance Co Ltd
Application granted granted Critical
Publication of US1670986A publication Critical patent/US1670986A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/04—Apparatus or circuits at the transmitting end
    • H04L15/18—Automatic transmitters, e.g. controlled by perforated tape

Definitions

  • This invention relates to improvements in or relating to telegraph transmitters.
  • the invention is applied to transmitting apparatus for transmitting signals, adapted to be actuated by a standard punched strip for reverse currentsignalhng, the apparatus preferably comprises a pair of disks and rollers, made as described above, and insulated from one another. This may conveniently be effected by means of a third disk formed of insulating material and provided with pins or spurs adapted to engage the central holes in the strip.
  • the apparatus consists of two metal disks which are insulated from each other by a third disk of vulcanite orother insulating substance. These disks are rotated as one.
  • Each of the metal disks is provided at its'periphery with a ring. of radial recesses in which are located balls of suitable metal which project through the signal holes in the punched strip wherever they occur. The diameter at the outer ends of the recesses is made less than that of the balls, so that these latter are retained in the recesses.
  • each recess Located in each recess is a spring which normally presses the ball outwards so that this latter normally projects beyond the periphery of the disk.
  • Such means may consist of a switch device inserted-in effective series in a line and adapted to limit the duration of a contact period. downward from a maximum of full contact, 'i. e. from a maximum when the switch device never breaks circuit.
  • Such control of the contact and earthing periods can be effected in various different ways. in one arrangement there is employed for this purpose a diskof insulating material in which radial arms of metal are embedded and'converge to a common hub. A brush of any suitable material or form is held in a traveller so that it can be brought towards the ,middle of the said disk, in which position it makes continuous contact with the metal arms. When it is brought to the greatest diameter of the disk, the marking current may be 40% or less.
  • Figure 1 is a plan view of a transmitter in accordance with the invention
  • Figures 2, 3 and at are detail views
  • Figures 5 and 6 are detailed views of two modifications.
  • 1 and 2 are two metal disks which are insulated from each cess is a'spring 7 which normally presses the ball outwards so that. this latter normally projects beyond the periphery of the disk.
  • Two rollers 8 are held in position above each ring of balls, and means, to be described hereinafter, are provided by which their position can be accurately adjusted.
  • the punched strip 9 is held in. position by a guide 11 ( Figure 2) which is of substantially the same radius as the drum, and is out out to clear the balls and. spurs.
  • Ten- 'sion is applied by means of a springlil which is adjustable.
  • the strip is carried to the drum by. way of a flattened tube13, the end of: which leads the strip to the periphery of the drum Whenit engages with. the spurs 10. It is then carried away through alike tube 14, which is flush with the drum on the opposite side. i 1
  • the lower arm 15 is flexible to a certain extent, and Carries the roller, while the upper arm 16 is as rigid as po.ssible,-and carries a set screw 17 which, when screwed down, presses the arm carrying .the rollercloser to the.
  • a transverse screw 18 is provided and serves as a locking device.
  • the apparatus illustrated in the figures comprises means by which the time of contact and earthing can be controlled.
  • These said means comprise a disk 19 ( Figure i) of insulating material, in which radial arms 200i metal are embedded, the said arms converging to a common hub 21.
  • a carbon or other suitable brush carried in atraveller 23, whereby it may be traversed across the disk from a position in which it makes continuous contact with the metal arms or with the hub (giving 100% marking. or block signals) substantially to the etge of the disk.
  • a second brush 24L rubbing continuously on the hub, is employed to complete the circuit. W hen the brush 22 is brought to bear at the greatest diameter of the disk, the marking current may he 40% or less.
  • the means for controlling the time of contact and earthing comprise a timing disk formed as an ordinary commutator 26, with the conductor bars 27 arranged round the periphery and asuitable width of insulation 28 between each bar.
  • a horseshoe-shaped brush 29 bears on the disk, the brush having two contacts 30, 31, which spring from a common conducting base.
  • Means, such as a right and left handed screw 32 are provided for bringing the two brush contacts together, in which position there is minimum time contact. are arranged to be separable until they bridge one conductor bar with the neXt; in this position there is 100% marking.
  • the transmitter can be used in conjunction with any standard pattern relay.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a plurality of recesses therein, out' wardly biassed conductive plungers in said recesses, electrical connection means co-operating with said-plungers, an electrical circuit including said conductive plungers and said electrical connection means, signal tape driv ing means associated with said contact disks, and means for rotating said pair of contact; disks and said signal tape driving means.
  • Telephone transmitting apparatus comprising in combination a pair ot'fcontactv disks, a plurality of recesses therein, outwardly biassed conductive plungers in said recesses, electrical connection means co-operating with said plungers, an electrical circuit including said conductive plnngers and said electrical. connection means, an insulating disk having spurs thereon and located between the pair of cont-act disks, and means for rotating said pair of contact disks and said insulating disk.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a plurality of recesses therein, outwardly biassed conductive plungers in said recesses, conductive roller means for effecting electrical connection co-operating with said plun ers, an electrical circuit including said conductive plungers and said conductive roller means, an insulating disk having spurs thereon and located between the pair of contact disks, and means for rotating said pair of contact disks and said insulating disk.
  • Telephone transmitting apparatus comprising in combination a disk shaped contact device, a plurality of recesses therein, outwardly spring biassed conductive. balls in said recesses, electrical connection means cooperating with said balls, an electrical circuit including said conductive balls and said electrical connection means, and means for rotating said disk shaped contact device.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a plurality of recesses therein, outwardly spring biassed conductive balls in said recesses, electrical connection means co-' operating with said balls, an electrical circuit including said conductive balls and said electrical connection means, an insulating disk having spurs thereon and located between the pair of contact disks, and means for rotating said pair of contact disks and said insulating disk.
  • Telephone transmitting apparatus comprising in combination a disk shaped contact device, a plurality of recesses therein, outwardly biassed conductive plungers in said recesses, adjustable electrical connection means co-operating with said plungers, an electrical circuit including said conductive plungers and said adjustable electrical connection means, and means for rotating said disk shaped contact device.
  • Telephone transmitting apparatus comprising in combination a pair. of contact disks, a plurality of recesses therein,-outwardly biassed conductive plungers in said recesses, adjustable electrical connection means co-operating with said plungers, an electrical circuit including said conductive plungers and said adjustable electrical connection -means, an insulating disk having spurs thereon and located between the pair of contact disks, and means for rotating said pair of contact disks and said insulating disk.
  • Telephone transmitting apparatus comprising in combination a disk shaped contact device, a plurality of recesses therein, outwardly biassed conductive plungers in said recesses, electrical connection means co-operating with said plungers, an electrical circuit including said conductive plungers and said electrical connection means, means for controlling the relative times of contact and earthing, and means for rotating said disk shaped contact device.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a plurality of recesses therein, out- Wardly biassed conductive plungers in said recesses, electrical connection means co-operat-ing with said plungers, an electrical circuit including said conductive plungers and said electrical connection means, an insulating disk having spurs thereon and located between the pair of contact disks, means-for controlling the relative times of contact and earthing, and means for rotating said pair of contact disks and said insulating disk.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a plurality of recesses therein, outwardly spring biassed conductive balls in said recesses, conductive roller means for effecting electrical connection co-operating with said balls, an electrical circuit including said conductive balls and said conductive roller means, an insulating disk having spurs thereon and located between the pair of contact disks, means for controlling the relative times of contact and earthing, and means for rotating said pair of contact disks and said insulating disk.
  • Telephone transmitting apparatus com prising in combination a disk shaped contact device, a plurality of recesses therein, outwardly biassed conductive plungers in said recesses, electrical connection means co-operating with said plungers, an electrical circuit including said conductive plungers and said electrical connection means, means comprising a rotatable insulating disk provided with 1 a plurality of radial conductive arms cooperating with adjustably positioned brushes bearing upon the face of saidinsulating disk, for controlling the relative times of contact and ear-thing, and means for rotating said disk shaped contact device.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a pluralityof recesses therein, outwardly biassed conductive plungers in said recesses, electrical connection means copperating with said plungers, an electrical circuit including said conductive plungers and said electrical connection means, an insulating dis-z having spurs thereon and located between the pair of contact disks, means comprising a rotatable insulating disk provided with a plurality of radial conductive arms co-operating with adjnstably positioned brushes bearing upon the face ofsaid insulating disk, for controlling the relative times of contact and earthing, and means "for rotating said pair of contact disks and said insulating disks.
  • Telephone transmitting apparatus comprising in combination a pair of contact disks, a plurality of recesses therein, outwardly spring biassed conductive balls in said recesses, conductive roller means for effecting electrical connection co-operating with said balls, on electrical circuit including said conductive balls and said conductive roller means, an insulating disk having spurs thereon and located between the pair of contact disk-s, means comprising a rotatable in sulat-ing disk provided with a plurality ot radial conductivearn'is co-operating with adjustably positioned brushes bearing upon the face of said insulating disk, for controlling the relative times of contact and earthing, and means for rotating said pair of contact disks and said insulating disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
US189662A 1926-06-25 1927-05-07 Telegraph transmitter Expired - Lifetime US1670986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1670986X 1926-06-25

Publications (1)

Publication Number Publication Date
US1670986A true US1670986A (en) 1928-05-22

Family

ID=10888066

Family Applications (1)

Application Number Title Priority Date Filing Date
US189662A Expired - Lifetime US1670986A (en) 1926-06-25 1927-05-07 Telegraph transmitter

Country Status (4)

Country Link
US (1) US1670986A (enrdf_load_stackoverflow)
DE (1) DE500721C (enrdf_load_stackoverflow)
FR (1) FR633975A (enrdf_load_stackoverflow)
NL (1) NL21682C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE500721C (de) 1930-06-24
NL21682C (enrdf_load_stackoverflow)
FR633975A (fr) 1928-02-07

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