US1180836A - Electric telegraphic apparatus. - Google Patents

Description

E. J. GALYEAN.

ELECTRIC TELEGRAPHIC APPARATUS A 1 7 APPLICATION FILED FEB. 7, I9l3. 1,180 836.

Patented Apr. 2",1916.

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LVLtmeoozo E. J. GALYEAN.

ELECTRiC TELEGRAPHIC APPARATUS.

APPLICATION FILED FEB. 7. 1913- v I Patented Apr. 20, 19M).

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APPLHLATION FILED FEB. 7, 1913. 1 I v Q Pa'nemefi Apr. 25, 1:116,

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E. J. GALYEAN ELECTREC TELEGRAPHIC APPARATUS.

APPLICATION FILED FEB. 7. 1913.

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EDWARD J. GALYEAN, OF DETROIT, MICHIGAN.

ELECTRIC TELEGRAPHIC APPARATUS.

Specification of Letters Patent.

Patented Apr. 25, 1916.

Application filed February 7, 1913. Serial No. 746,930.

To all whom it may concern:

Be it known that I, EDWARD J. GALYEAN, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented cer-- tain new and useful Improvements in Electric Telegraph Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an electric telegraph apparatus and more especially to an adaptation thereof for transmitting a picture, drawing, chart, diagram or the like.

The invention consists in the matters hereinafter set forth and pointed out in the claims. y

In the drawings, Figure 1 is a view in elevation, partially broken away, and in section, of a receiving instrument that embodies features of the invention; Fig. 2 is a plan view of the receiving instrument; Fig. 3 is a view in side elevation of a transmit ting instrument that forms part of the invention; Fig. 4 is a view, largely. diagrammatic, showing the connections and circuits of the a paratus; Figs. 5 and 6 are views in detail of a plate prepared for transmission; and Fig. 7 is'a view in elevation of a modification of the receiving instrument.

Referring to the drawings the transmitting apparatus consists of a main frame 1 in which a cylinder 2, is journaled and is driven from a clock mechanism indicated at 3, or other preferred motor, through a gear train 4. A feed screw 5 in parallel. relation to the cylinder, likewise actuated by the motor 3, shifts a carriage 6 across the cylinder from end to end thereof in such manner that an electric contact needle 7 yieldingly bears against the face of the cylinder or a sheet applied thereto. Preferably the car'- riage travels on guide wheels 8 that run on I a track bar 9 of the main frame with an out-' board idler 10 that traverses a fiat plate 11 of the frame. For convenience of manipulation and setting of the carriage at any point along the cylinder, the connection between the feed screw 5 and carriage is made by a member 12v that is suitably pivoted as on a bar 13 to the carriage and is provided with a half-nut that is forced against the screwthread yieldingly by a properly disposed spring, such as indicated at 14 or the like, while a handle 15 permits the release and replacement of the nut as desired. A

spring finger 16 acts as a latch hold the member 12 in raised position while shifting the carriage if desired.

A synchronizing disk 17 is secured on a ]0L1I'I13.l of the cylinder 2 or otherwise mounted to revolve in unison therewith and has a periphery of insulating material broken by a contact bar 18. A pair of spring fingers 19 and 20 mounted in insulated relation on the main frame, are arranged to simultaneously contact with the bar 18 and thereby close a circuit through a conductor 21 and ground wire 22. The field coil 23 of an electro-magnet is connected by the conductor 21 in series with the spring fingers and with the main lead 24 of a main circuit. When energized by this circuit the field coils hold a detent arm 25out of engagement with astop wheel 26 that is mounted to turn in unison with the synchronizing disk and cylinder.

The contact needle 7 which is preferably carried by a lever 27 with adjusting screw 28 whereby its pressure against the periphery of the cylinder 2 may be regulated, is suitably insulated from the carriage and is connected to a transmitting line 29.

r A. sheet 30 of conducting material has a map, chart, picture, diagram, message or the like as indicated at 33 made on its surface by non-conducting ink, pigment or the like. The receiving instrument has a cylinder 34 journaled on a main frame 35 and driven from a suitable motor 36 through transmission mechanism 37. A synchronizing disk 38 is secured 'to the shaft of the cylinder or otherwise connected to rotate in unison therewith and has a periphery of insulating material broken by a bridge or connecting strip 39. A pair of spring fingers or contact members are mounted in insulated relation on the main frame 35 to bear against the disk 38 and be brought into series by simultaneous contact with the strip 39. One of the fingers 40 is connected to ground by a conductor 41. The other finger is connected to the main line 24 through a field coil 42 of an electro-magnet and a conductor 43. A detent arm 44 is normally held out of engagement with a detent wheel 45 that is secured or mounted to rotate in unison with the synchronizing disk 38 and cylinder 34, when thefield coils 42 of a magnet 46 are energized. Asa result of this con- 1 nection between the synchronizing disks 17 and 38 whenboth cylinders are in operation and the cylmder of the receiver tends to vary from the speed of the other cylinder, the circuit through the field coil of the electro-magnet of the receiver releases the detent and arrests the cylinder with the strip 39 in contact with the spring arms 40, holding the cylinder in this position until the circuit is completed by the revolution of the. transmitter synchronizing disk into such position that the contact or spring arms thereof are connected to close the circuit. This insures equal speeds of the receiving and transmitting cylinders.

A carriage 47 is arranged to traverse the main frame 35, being supported on guide wheels 48 that run on a guide rod 49 and an idler 50 traveling on a track bar 51. A driving member carries a half-nut that normally engages a driving screw 53 operated in .timed relation to the cylinder 3% by the transmission mechanism 37. For adjustment a handle 5% permits the instant release of the carriage for shifting and resetting.

A stylus supplied from a suitable reservoir is mounted on an upright spindle 56 in such way as to traverse the cylinder 34 when the carriage 47 is moved along its guides. The spindle is reciprocable through a guide bearing in the carriage and carries a disk 57 which operates as an armature to an electro-magnet 58. The field coils of the latter are in series through the lines 2+ and 29 with the contact needle 7 of the transmitter so that when the contact of the needle with the conducting surface of a sheet applied to the transmitter cylinder energizes the coils of the magnet the stylus is held out of contact with the surface of the cylinder '34 or a record sheet placed thereon. Vhen the circuit is broken, a suitably disposed spring 59 projects the stylus into yielding contact with such sheet. As a matter of good construction the'spring 59 may have the tension varied by the adjustment of a hand nut 60. Its movement is limited by an adjustable check or stop, nut 62 which is-held from accidental turning by a spring 61. As a further detail, the stylus may be supplied from a reservoir 63 mounted on the spindle and suitably connected as by a tube or duct 64 to supply the stylus. If preferred, the recording stylus may be normally held out of contact with the recording sheet by a supporting spring and be projected against the cylinder by the action of an electro-magnet. Suchconstruction is shown in Fig. 7 in which a. stylus-carrying spindle 65 is-normally supported on the carriage of the machine out of contact of the cylinder by asuitably disposed spring 66 whose tension may be changed by a hand nut (37. The coil of a magnet 68 encircling the spindle is in series with the conductors 24 and 29 and when excited the magnet depresses the spindle 65 through the agency of an armature disk or plate 69 secured on the spindle.

In operation a properly prepared transmitting sheet is placed on the cylinder of the transmitter and a recording sheet secured on the cylinder of the receiver. \Vhen the transmitting receiver is released by passage of current through a synchronizing disk and its connections, so that it revolves under the impetus of the transmitter motor, the cylinder of the receiving"machine is likewise released and driven in synchronism with the transmitter cylinder as hereinbetore described. \Vhenever the lines of the diagram or the like on the transmitting sheet break the circuit through the contact needle, the recording stylus is correspondingly moved and such movement registered on the receiving sheet and thus any matter that is traced on the transmitting sheet is reproduced on the receiving sheet. The synchronizing mechanism is provided for accurate reproduction as it controls the receiving cylinder so that the latter travels in synchronism with the cylinder of the transmitter.

The apparatus is extremely simple, not liable to disarrangement or excessive wear, and isreadily connected into the lines of an ordinary telegraph system. I

\Yhile herein shown in an electric telegraph system having conductors, the device is also adaptable for use in wireless telegraphy, the impulses from one aerial being given through the transmitter aerial securing them and controlling the receiver as in the other system.

Obviously, changes in the details of construction may be made without departing from the spirit of my invention and I do not care to limit myself to any particular form or arrangement of parts.

lVhat I claim is 1. An electric telegraph system comprising a sending circuit including a transmitter with a rotatable carrier member, mechanism for driving the member, a carriage adapted to traverse the carrier, an electrical contact member on the carriage bearing yieldingl against the carrier, detent means dapted to arrest the carrier once during each revolution, an electric magnet adapted when energized by the circuit to prevent engagement of the detent mechanism with the carrier, synchronizing means geared to rotate in unison with the carrier provided with a contact strip, a pair of members .bearing against thesynchronizing means and coacting'with the contact strip thereof to close the sending circuit through the electro-magnet when the detent mechanism is affected, a receiver having a rotatable carriage member, mechanism for driving the member, a carriage operated by the mechanism to traverse the carrier, a stylus on the carriage and the other controlled by the electro-magnet to move toward and away from the carrier in response to impulses of the magnet, detent mechanism adapted to lock with the carrier Once during each revolution, an electro-magnet adapted when energized to hold the detent mechanism inactive, synchronizing means geared to rotate in unison with the wheel carrier and provided with a contact strip, a pair of members in series with the sending circuit with the members of the transmitter synchronizing means, coacting with the strip of the transmitter. synchronizing means to close the circuit through the electro-magnet controlling the detent, and means for energizing the circuit.

2. An electric telegraph system comprising a sending circuit that includes a transmitter consisting of a rotatable carrier member, mechanism for driving the member, a carriage adapted by the mechanism to traverse the carrier, an electric contact member on the carriage bearing yieldingly against the carrier, a detentwheel secured to the carrier to turn in unison therewith, a detent adapted to lock with the wheel once during each revolution, an'electromagnet adaptedwhen energized by the circuit to hold the detent vfrom engaging with the wheel, a synchronizing disk secured to rotate in-unisonwith the Wheel and carrier provided with a contact strip on its periphery, a pair of members bearing against the disk, and co-acting with the contact strip thereof to close the sending circuit through the electro-magnet as the detent and wheel move into engaging relation, a receiver having a rotatable carrier member, mechanism for driving the member, a carriage operated by the mechanism to traverse the carrier, a stylus on the carriage controlled by the electromagnet to move toward and away from the carrier in response to impulses of the magnet, a detent wheel secured to rotate in unison with the carrier, a detent adapted to lock with the wheel once during each revolution, an electromagnet adapted when energized to hold the detent from engaging with the wheel, a synchronizing disk secured to rotate in unison with the wheel and carrier and provided with a contact strip, a pair of members in series through the sending circuit with the members of the transmitter synchronizing disk, co-acting with the strip of the transmitter synchronizing disk to close the circuit through the electromagnet controlling the detent, and means for energizing the circuit.

In testimony whereof I afiix my signature in presence of two witnesses.

EDWARD J. GALYEAN.

Witnesses:

ANNA M. DORR, OTTO F. BARTHEL.

Copies of this patent may be obtained for fiv'e cents each, by addressing the commissions: of Potato,

' Washington, D. 0.

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