US1548060A - Printing-telegraph system - Google Patents

Description

Aug. 4, 1925.

H. PFANNENSTIEHL..

PRINTING TELEGRAPH SYSTEM v Filed July 29, 1922 Patented Aug. 4,1925.v

UNITED STATES PATENT OFFICE.

HARRY rrANNENs'rIEnT., or MaPLEwoonvNEw JERSEY, AssreNo'R 'ro- WESTERN EEEcrRIc- COMPANY, INCORPORATED, or NEW YoRx, N. Y., A ooRPoRATIoN or NEW YORK.

I ,rRINTrNG-TELEGRAPH SYSTEM.

Application 'lei July 29, 1922. Serial No. 578,319.

Connected intermediate the distributors T all 'whom it may concern: r

Be it known that I, HARRY PFANNEN sTIEHL, a citizen of the United States', residmg at Maplewood, in the county of Essex, State of New Jersey,have invented certain new and useful Improvements in Printing- Telegraph Systems, of which the following is a full, clear, concise, l'and exact description.

This invention lrelates to printing telegraph systems.

. An object ofthe invention is to provide means for converting a predetermined code combination, such as a five-unit code, into a different code combination, for example, a

' seven-unit code.

.Another4 object is to provide means whereby a receiying .printer operable with a system employing a predetermined codey may be used in connection witha system operatin'g on a different code.

In accordance with thev above and other objects ofthe invention, thereis provided at a single station, a continuously operating distributor associated with a line circuit for receiving and distributing impulses of a predetermined code to a group of storing relays. The stored impulses, together .with

additional impulses are delivered to a receiving printer 'or other recording instrument by means of an intermittently operating or start-stop distributor.

One embodiment of the invention is illustrated in the accompanying drawing which shows only so much of the mechanism as is necessary for a clear understanding of the invention.

In the accompanying drawing, A and B are two distributor faces, which faces consist of a plurality of segments and continuous rings. The distributor A is of the con-V tinuously operating or multiplex type of distributor, while the distributor is of the start-stop type, that is, the brush arm 'is stopped once per revolution. The distributor brushz arms 10 land 50 are mounted on a constantly rotated shaft, which may be driven by any suitable means, as a driving motor, the brush arm-50 being frictionally mounted on its respectivel shaft. Each of the brush arms carries brushes which are i A and B are a plurality of relays 11, 122 13,

.14, and 15. These relaysf have theirwlndlngs connected to segments included in one channel- 'of the multiplex distributor A, which as is well known to those familiar with such systems, may 1 be provided for double duplex operation. As the brush arm 10 rotates, the segments to which the'windings of the storing relays 11 to 15, inclusive are connected, will be bridged by means of brush 16 with continuous ring 17 to which the armature of line relay 18 is connected.

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Relay 18 is serially connected with line conductor 19, which extends from a distant station and over which groups of code combi- K nations of message impulses are transmitted vand which are, through the instrumentalities of the mechanism hereinafter described, recorded in printed form. As vbrush 10 bridgesthe respective segments, storin relays 11 to 15 will be energized inacco ance with the operation of relay 18, thereby'storing a group of impulses corresponding to the impulses originally transmitted over the line conductor 19. Each of the relays 11 to 15 inclusive is provided with a self-locking circuit so that upon the energization of any one thereofthey will remain energized until Athe receipt of a clearing out impulse.

The armatures of storing relays -11 to 15 are connected with segments forming apart of the outer ring of the intermittently operating distributor Bf: This distributor, like all distributors of the start-stop type, is provided with a release magnet 20, the energization of which is controlled through segment 21 forming a part of the multiplex distributor A. Upon the release of the' brush arm 50, brush 51 carried thereby sweeps over the segments connected to the armatures of the storing relays and impresses on a magrliet 22, orming a part of the selecting mec anism of the printer, impulses corresponding to the character to be printed.

Selecting magnet 22 forms a art of the printer unit C, which in the pre erred form of the invention consists of a plurality of rotatable shafts which are arranged `upon the operation of release latches, to be rotated through an vangle equal Ito 180, such shafts in rotating impart a rotative y'Inotion' to a type wheel 23 through a series of links or connecting levers. For a more complete description and disclosure of such la printing described in connection with relay 13 exists unit, reference may be had to my copending application Serial No. 531,337 filed January v24, 1922. inasmuch as the printer mechanism per se does not form a part of the present invention, only so much of the mechanism is shown as is thought necessary for a clear understanding of the present invention.

In the form of the invention disclosed, the distributor mechanism forming a part of the printing unit, that is, the mechanism which selects in this particular case the series of shafts for rotation and the start-stop distributor B, which, as previously, described, is made up of a series of concentrically arranged segments over which the brush arm is arranged to sweep, are driven from a common motor. Obviously, however, separate 'driving means may be provided for the respective parts.

The operationy of the system for the selection and printing of the desired character is as follows: Assume that it is desired to select and record the character J and that such character in accordance with the Baudot live-unit code comprises the following selecting units: Positive, positive, negative, positive, and negative. For this group of impulses the transmitting mechanism (not shown) at the station connected by the line conductor 19 is operated to impress impulsesA corresponding to the above group. Line relay 18 thereupon' responds to such changes in line conditions for causing the corresponding operation of the storing ,relays 11 to 15, inclusive. Upon the passage ,of the brush 16 over lsegment 24, rela 18 being operated to close contact 29, storing relay 11 will be energized over a circuit extending from battery, contact 29, armature of rela 18, ring 17, brush 16, segment 24 of distri utor A and the winding of relay 11 to ground. Relay 11 is thereby energized and establishes upon the closure of its left-hand contact a locking circuit for itself extending from battery, through the armature and contact of relay 30, left-hand armature and contact and winding of relay 11, to ground. The closure of the righthand contact of this relay connects to segment 31 of the distributor B a source of current. Likewise, as brush 16 passes over segment-25, relay 12 will be energized.- The next selecting unit Ibeing a negative impulse, line relay 18 is caused to reverse the position of its armature, thereby opening contact 29 and lclosing contact 32. Now upon the passage of the brush 16 over segment 26,.relay 13 will not be energized as battery is-no longer connectcd'to the continuous ring 17. For the other two selecting units, relay 14 will be energized in a manner similar to re-y lays 11 and 12, but relay 15 will notl be energized as a condition similar to the one upon the passage of brush 16 over segment 28.

Following the passage of the brush 16 on to segment 24, brush 33 carried by the brush arm 10 of distributor A, passes over segment 21, bridging this segment with ring 34. Upon the bridging of segment 31 with ring 34, a circuit is completed for causing the energization of release magnet 20, which in energ1zing, withdraws the release latch holding distributor arm 50 against rotation. Distributor arm 50 is thereupon free to rotate due to power being communicated thereto through a series of shafts, gears, and friction clutches. Immediately upon the passage o brush 51 o of segment 35, the energizing circuit for selecting magnet 22 is broken, thereby causing the deenergization of this magnet and the release of the mechanism to which a series of tripping fingers 37, 38, 39, 40, 41, and 42 are connected. This release mechanism comprises a latch 43 arranged in the path of travel of armature 44 of magnet 22 so that upon the deenergization of selecting magnet 22, latch 43 is operated for causing the Operation of a pivoted lever 45. which moves -a stop member out of the path of arm 46 lwhich is secured to the mechanism controlling the rotation of the tripping fingers 37 to 42.

For the particular selection chosenrelays 11, 12, and 14 are energized and locked up over circuits similar to that traced in connectionwith relay 11.v rl.`hus, as brush 51 passes over the segments to which these relays are connected, selecting magnet 22 will accordingly be energized over a circuit extending from battery, through the righthand contact and armature of the energ1zed relay, the segment to which the particular armature is connected, brush 51, ring 36 and the winding of selecting magnet 22 to ground. In order that the impulses stored on the relays 11 to 15 will be transferred at the proper moment, the rods to which the release latches are secured and the Asha-:tt carrying brush arm 50 rotate at the same speed.` Selecting magnet 22, Vupon being energized, positions the corresponding tripping ingers with respect to one or the other of the release latches, depending upon whether the storing relays 11 to 15 are energized, as described in the previously mentioned ap lication. Due to the ener ization of se ecting magnet 22 in accor ance with the energization of the storing relay 11 to 15inclusive, trippin fingers 37 to 42 will be ositioned in accor ance with thel `oup of impulses transmitted for the partlcular character to be recorded. As these tripping fingers revolve, they o erate the latchesv controlling the rotation o a shaft individual to eanh pair off-latches. To these shafts there is connected avseries of connecting links,-

which in turn are connected to a rack 47 b means of a common link, the teeth of whic i engage teeth of a gear Wheel 48. This gear wheel 48 is rigidly secured to type Wheel 23- bringing the desired character into printing clear-out relay 30 extending position. The printing of the character is accomplished as in the previously mentioned application.

Following the passage of brush 51 off of the segment to Which the armature of storing relay 15 is connected andthe engagement of this brush with segment 49, a circuit is completed for causing the energization of from battery, brush 51, segment 49 and winding of clearout relay 30 to ground. This relay in attracting its armature, opens the locking circuit of the previously energized storing relays, thereby restoring` the system to normal. i By providing a series of storing relays which are operated in accordance with impulses received on the multiplex distributor and transfer mechanism operative to cause the, operation of the selecting mechanism as determined by the relays energized, a printer having a much lower speed of operation than that of the multiplex distributor may be readily adapted to operate in conjunction with such an arrangement. In such a system, the printer may operate in a period of time equal to one cycle of rotation of the multiplex distributor.

Althou h the invention has been disclosed and described in connection with a printing unit in which a type wheel is used, it is, of course, obvious that other types of printers, such as type bar printers, may be substituted Without departing from the spirit and scope of the resent invention.

The lnvention claimed is;

1. In combination, a synchronous multiplex distributor associated with a line circuit, a series of storing relays associated with said distributor, local-circuit connections conditioned by said relays in response to line current impulses, a receivin printer, and an 'intermittently rotatable distributor controlled by said multiplex distributor for completing the local circuits conditioned by said'relays to said printer.

v2. In combination, a synchronous multiplex-,d-istributor associated with a line circuit, a series of storing relays associated With said distributor responsive to line current impulses, local circuit lconnections conditioned by said relays, a receiving printer comprising a single selecting magnet, selecting mechanism controlled by said magnet, and printing means operated in accordance with the setting of said selecting mechanism, and an intermittently rotatable distributor controlled by said multiplex distributor for completing successively the local circuitsv conditioned by said relays to said single selecting magnet. o

3.V In combination, a line circuit terminating at a station, a synchronous distributor associated with said line circuit for receiving impulses of a five-unit code 4combination, a receiving printer at the same station arranged to operate on a seven-unit code combination, and means associated With both said distributor and printer for rendering said printer operative in conjunction with the code combination/as received by said synchronous distributor.

4. In combination, a line circuit terminating at a station, a synchronousy distributor located at said station and associated with said line circuit, a receiving printer having a single selecting magnet controlled by said distributor, and means comprising a series of storing relays and a periodically rotatable distributor for storing and transferring directly tol said selecting magnet impulses received by said s nchronous distributor.

In Witness w ereo'f, I hereunto subscribe my name this 24th day of July A. D., 1922.

HARRY PFANNENSTIEHL.

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