US745692A - Telautograph. - Google Patents

Description

PATENTED DEG. 1,-19 03. G. S. TIFFANY. TELAUTOGRAPH.

. APPLIUA'IION FILED DBO. 20. 1900.

K0 MODEL.

ixio. 745,692.

UNITED STATES Patented December 1, 1903.

PATENT OFFICE.

GEORGE S. TIFFANY, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE GRAY NATIONAL TELAUTOGRAPH COMPANY, OF NEW YORK, N. Y., A CORPO- RATION OF VIRGINIA.

TELAiJTOGRAPH.

SPECIFICATION forming part of Letters Fatent No. 745,692, dated December 1, 1903. Application filed December 20, 1900. Serial No. 40.471. (No model.)

To all whom it may concern:

Be it known that I, GEORGE S. TIFFANY, a citizen of the United States,residing in the herough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Telautographs, fully described and represented in the following specification and the accompan yin g drawings, forming a part of the same.

This invention relates to improvements in telautographs, and particularly to means controlled by the transmitting-tracer for effecting the movement of the receiving-pen to and from its writing surface or platen, according :5 as the transmitting-tracer is so moved by the operator during the operation of Writing, it being the object of the present invention to provide means for this purpose which, unlike the means heretofore provided, is controlled :0 by the transmitting tracing implement independently of any movement of the transmitting writing-platen. 5

In the accompanying drawings, Figure l is a plan view, partly in diagram, illustrating 2 5 transmitting and receiving instruments equipped with one form of pen-controlling :provided with a fulcrumed pen-supporting .means embodying the present invention. Fig. 2 is a side elevation in the direction of the arrow 2 of Fig. 1 of a portion of the trans- 0 mitting instrument. Fig.3 is a plan view of a portion of the transmitting instrument, illustrating a modification which will be hereinafter described. Fig. 4 is a side elevation of the same. Fig. 5 is a side elevation of a portion of a transmitting instrument, illustrating a modification; and Figs. 6 and? are a plan view and side elevation, respectively, illustrating a'modification of the pen-' controlling means. 40

larly to Figs. 1 and 2, which embody the present invention in its preferred form, 1 represents the transmitting-platen, while 2 repre- 1 sents the transmitting-tracer, and 3 4 the supporting-arms of the transmitting implement,

these supporting-arms carrying and following the writing movements of the tracer in the usual way. The tracer-carrying arnis 3 at are provided on their edges with racks enga Referring to said drawings, and particumagnet 12 are controlled from the transmit- 9o ing pinions 5 6, so that as thesearms follow the movements of the tracer 2 they rotate these pinions'and through suitable devices (not shown, but which are Well understood) effect changes in the character or strength of the current sent to line to the receiving instrument, (by circuits not shown,) so as to cause the receivingpen to move in unison with and to reproduce at the receiving instrument the writing traced by the transmittingtracer. The tracer-carrying arms 3 4instead of being provided with racks engaging pin ions, as shown, may be provided with cords wound upon drums 7 8, as in the case of the carrying-arms 9 10 of the receiving-pen, which is the more common way of-connecting the carrying-arms of the tracer to the devices through which the tracer efiIects the changes before referred to in the currents on line to the receiving instrument, the connections between the tracer-carrying arms and the cur- 7o rent-controlling devices being immaterial so far as the present invention is concerned.

Referring now to the receiving instrument,

12 represents the usual pen lifting and lowering magnet, the armature 13 of which is arm 14, which is moved upwardly by a spring 15 to lift thereceiving-pen from the paper i when the magnet 12 is denergized and its armature 13 released and which is moved downwardly when the magnet 12 is energized and the armature 13 is attracted thereby, so as to effect the movement of the receiving-pen I downwardly. into contact with the paper, these two movements of the recei ving-pen tak- 8 in g place according as the transmitting-tracer is raised and lowered by the operator relatively to its writing surface or platen.

The energization and denergization of ting-tracer 2 in the following manner in the system shown in Fig. 1, in which for convenience and clearness of description circuit connections independent of the main lines are shown: At the transmitting instrument 5 is located a battery 16, divided and grounded at G, and the positive pole whereof (with the master-switch M in the position shown) is connected with the magnet. 12 by a circuit consisting of wire a, plate b of the master: switch, Wire 0, spring-contact (Z, tracer-carrying arm 4, contact e thereon, tracer-carrying arm 3, spring-contact wire g, plate h on the master-switch, and wire 11, passing through magnet 12 to ground at G. The arm 4 is movably mounted upon the stem of tracer 2, as shown in Fig. 2, and has connected to it the handle 17, which is usually provided for the use of the operator in guiding the movements of the tracerduring the writing op eration, so that as said handle is lowered with the tracer to the writing-platen 1 the contact e, borne by arm 4, is brought into contact with arm 3, thus completing the circuit from battery 16 through magnet 12 and energizing said magnet and efiecting the movement of the receiving-pen downwardly into contact with its writing-surface. When the handle 17, and with it the tracer 2, is moved upwardly, the arm 4, moving with it, withdraws contact e from engagement with arm 3, thus opening the circuit through the magnet 12, which is thus denergized and releases its armature 13, with the result that the supporting-arm 14, moved upwardly with the armature 13 by spring 15, raises the receiving-pen from its writing surface or platen.

Although an independent circuit is shown for the magnet 12that is, acircuit independent of the main line-the invention is not to be so limited. Neither is it to be limited to any particular type of telautograph, as it is equally applicable to telautographs of the step-by-step or escapement type and telautographs in which the writing movements of the receiving-pen are controlled by variations in current strength on line or variable current telautographs, as they are sometimes called.

The pen-controlling means illustrated in Figs. 1 and 2 embody the invention in its preferred form, as before stated; but it is to be understood that other means than those shown in these figures may be employed without departing from the invention, broadly considered-*such, for example, as the means shown in Figs. 3 to 7, which will now be described.

In the construction illustrated in Figs. 3 and 4 the circuit, as in Figs. 1 and 2, passes through the arms 3 4, which are insulated from each other, as shown at a: at, the circuit in this case, however, being controlled by a stationary contact e, bridging the two arms 3 4, and which contacts therewith to close the circuit through magnet 12 as the arms 3 4 and tracer are lowered and breaks contact therewith to open the circuit as the arms 3 4 and tracer are raised.

In the construction illustrated in Fig. 5 the circuit does not pass through the arms 3 4, but through a post 6 and spring-contact e which latter is depressed into engagement with post e to close the circuit through magnet 12 by the arms 3 4 or one of them when they are lowered and is disengaged from said post to break the circuit when the arms are raised.

In the construction illustrated in Figs. 6 and 7 the circuit passes through the arms 3 4, as in" Figs. 1, 2, 3, 4, the arms 3 4 being insulated from each other by insulating material 00 interposed between arm 4 and a collar 18, by which arm 3 is hinged to said arm 4, the circuit between the arms 3 4 being controlled by a contact e carried by a tube 19 of insulating material mounted to slide longitudinally upon the stem 20 (which is of metal) of tracer 2, the tube 19 being guided in its movements longitudinally of stem 20 by a pen 21 in said stem entering a slot 22 in said tube. \Vhen the contact e is in its lowermost position, as shown in Fig. 7, it is in engagement with collar 18 of arm 3, and the circuit is then closed through said arms, the current passing through arm 4, stem 20, contact e collar 18, arm 3, and thence, as before, to the magnet 12. When the tracer 2, and with it the tube 19, is raised, the contact e is disengaged from collar 18, the circuit through magnet 12 being then opened.

In each of the foregoing constructions it will be observed that the electrical connections which control the movements of the receiving-pen to and from its writing-surface are in turn controlled by the transmitting tracing implement independently of any movement of the writing-platen of the latter.

What I claim is- 1. In a telautographic system, the combination with a transmitting-tracer and its carrying-arms and writing-platen, and a receiving-pen and its writing-platen, of devices at the receiving instrument for effecting the movement of the receiving-pen to and from its writing-platen, electrical connections between said devices and carrying-arms and including the latter, and means for controlling said electrical connections, whereby as the transmitting tracing implement is moved to and from its writing-platen like movements of the receiving-pen are efiected, substantially as described.

2. In a telautographic system, the combination with a transmitting-tracer and its carrying-arms and Writing-platen, and a receiving-pen and its writing-platen, of devices at the receiving instrument for effecting the movement of the receiving-pen to and from its writing-platen, electrical connections between said devices andcarrying-arm's and including the latter, and circuit making and breaking means for controlling said electrical connections, whereby as the transmitting tracing implement is moved to and from its writing-platen like movements of the receiving pen are effected, substantially as de scribed.

3. In a telautographic system, the combination with a transmitting-tracer and its writing-platen, and a receiving-pen and its writing-platen, of devices at the receiving instrument for effecting the movement of the re ceiving-pen to and from its platen, a pair of carrying-arms for said tracer, one of said arms having a circuit making and breaking contact movable into and out of contact with the other arm, and electricalconnections be tween the pen-moving devices and said arms, whereby as the transmitting tracing implement is moved to and from its writing-platen like movements of the receiving-pen are effected, substantially as described.

4. In a telautographic system, the combination with a transmitting-tracer and its car- 5. In a telantographic system, the combination with a transmitting-tracer and its writing-platen, and a receiving-pen and its writing-platen, of devices at the receiving instrument for effecting the movement of the receiving-pen to and from its platen, a pair of carrying-arms for said tracer, one of said arms having a circuit making and breaking contact movable relatively to the tracer into and out of contact with the other arm, and electrical connections between the pen-moving devices and said arms, whereby as the transmitting tracing implement is moved to and from its writing-platen like movements of the receiving-pen are effected, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

GEORGE S. TIFFANY.

Witnesses:

J. A. GRAVES, T. F. KEHOE.

Images