US1085124A - Printing-telegraph receiver. - Google Patents

Description

e. s. HILTZ. PRINTING 'rnnmaqs'g mmvm. APPLICATION FILED APB, a, 1912. 1 0851 24;. Patented M127, 1914 4 SHEETS-SHEET L 5 nos wto z $1 110 flttoamujo G. s. HILTZ. PRINTING TELEGRAPH RECEIVER AP'rLmATIoN IILED APR. 8, 1912.

imented Jan. '27, 191i 4 SHEETS-SHEET 2.

G. s. HILTZ. PRINTING TELEGRAPH BEGEIVER.

APPLICATION FILED A'PB.8,,191Z.

' Patented Jan. 27, 1914.

Q 8HEETB-SHEET 3.

Pi! a Was ED fihflesjn.

drones s mnrz, or new Yonirjn. assessor. re s-recs TELEGRAEH COMPANY, or new N. r, a

PRINTING-TELEGRAPH RECEIVER.

Specification of Letters Patent. Application filed April 8, 1912. Serial 33o. 6 8936%.

To all whom it may concern:

Be it known that I, Gannon S. Hip'rz, a citizen of the United States, residing at New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Printing-Telegraph Receivers, of which the following is a full, clear, and exact description.

This invention relates to printing telegraph receivers, and while it'einbraces features applicable to so called page printers it is designed more particularly for devices which print on a tape and-which are coniinonly known as stock tickers.

.The chief objectof the invention is to simplify. the apparatus, making it positive in operation, less liable to derangement in use, and cheaper to manufacture.

To this and other ends the invention 0011- sistsin the novel features of construction and. combinations of elements hereinafter described, and more particularly set forth in the appended claims.

A convenient and effective embodiment of the invention is illustrated in the accompanying drawings, in which-- f Figures 1, 2, and 3 are front, side, and plan views respectively, of the complete machine. Fig; dis a detail front View and F ig. 5 is a detail sectional side view, of the,

printing platen, which carries the paper strip or tape against the type wheel to ceive impressions therefrom. Rig. 6 h, .i

section substantially on liner, 6-61 of Fig. 1.,

Thevarious' operative par s of' the device are conveniently mounted 01 or between a pair of parallel frame plates 1(), ll, which ,are themselves firmly secured trthe upper portion of a cross plate 12 attached to an arm 13 extending inwardly from an annular base 14. The latter, provided with an aperture 15 through whichthe tapedssucs as fed along by the tape-feeding'. deviees, is adapted to be seated on asuitable pedestal and to support the usual d01116 $liitPCi glass cover, neither of which is shown herein.

The type wheel consists of two disks ll, 17, with the desired characters on their peripheries,- 16 bearing letters and 17 hearing numerals andthe usual fractions. 'lhese disks are mounted on a shaft 18 journaled in the side frame 10 and a bracket 19 at the top of frame 11, the type wheel b'eingbecent to the frame 16, at the left of the machine as viewed from the front, is a pinion 20, meshing with a gear 21 ioesely mounted on a transverse shaft 22, 03 which gear the pinion, and with it the shaft- 18 and the type wheel a ie rotated to brhig desired pair of characters to the printing position. @ii the side of the gear is ebariel 23 (Figs. 1 and (3.), containing a ooh. s ring 24 attached at one end to the barrel and at the other end to the shaft 22, so that by rotating the latter the spring be tensioned to rotate the gear. For the purpose of thus winding up the sprii :5 the shaft 522 is provided with a fine-toothed ratchet wheel 25 (Figs. 1 and 6) actuated by a pawl 26 on the armature shaft 2? of an eleetrciiiagnet 28. As the pawl is rai ed the armature shaft the pivoted pawlfiiiger held in engagement with the ratchet by a light spring 30, is advanced, and as the pawl is depressed by the coil spring 31 after the magnet is de energized the finger is retracted. Thus at ach energizat-ion of the magnet the shaft 22 is given a slight rotary vement to tension the spring E4. Durin the advance of the winding pawl the ratchet and shaft are held stationary by a spring holding pawl coiiperating with the ratchet. ()n the shaft adjacent to the-frame 11 is a heavy 33* wheel or moment-um device 33, which, mnder the vigorous impulse of the winding pawi, serv s =10 rotate the shaftfsi'ther than the .rnoveruent of the pawl alone would do, thereby w nding thespring more rapidly. To prevent overwinding of the spring, which would of course have the eiiect of locking the par-is so that the pawl 26 and armature shaft 2'? could not rock, the bar:- rel \23 is made in two paris,-an outer part 23 fast. to the gear 21, and an inner part :23 to whic the spring is attached, Sl'lOY n in Rig. The inner par consists of a disk fitting the part 23 and rotatable therein and on the shaft 22, and a flange 23 to whiph the spring A is connected. @n the disl is a series of blade springs 23 eniiange 23%.; Consequently. when the spring is wound up to fail tension the spring-fin gers 23 Si ply slip on the flange 23*. To

pinion 20a ed loosely. o

iid shaf 18-the former is mount a the-shaft and. is connected rrictioejal y t ,ere .,o hy'a eesl. spring 205.2,;

gaging rictionally the inner surface of the provide a ielding connection between the rection a pair of adjustable screw stops4-3,

. the toothed feed wheel 50 cooperating with 3 impression point.

52 and having ,on its periphery shallow one end frictionally engaging the shaft and I at the other end similarly engaging the pinion.

The rotatiorl of the type wheel and the type wheel sliaft, under the influence of the spring 24, to bring the desired characters to the impression point, is controlled by an electromagnetic escapement mechanism, comprising a scape wheel (Figs. 1 and 6), an anchor 36, electromagnets 37, 38, and an armature composed of two armaturefingers 3f), 40, of magnetic metal, mounted on a nonmagnetic member ll; The armature is pivoted between the poles of a per mancntmagnet 42, with the forward ends of the fingers 39, 40 adjacentto the poles of the permanent magnet, so that the said fingers are polarized and are in effect permanent bar magnets. The electromagnets '37, 38 are arranged one above the other, as shown, with their poles on opposite sides of the armature-fingers and are connected in series, but the direction of the flow of current through them is such as to make their polarities always of opposite sign. Suppose, for example, that the inner or rear poles of the finger 39 are positive, and that the current is flowing in such direction through the electromagnets as to make the adjacent pole of magnet 37 negative and the corresponding pole 38 positive. The other poles of the two e'lectromagnets being then re.- spectively positive and negative, it will be seen that magnet 37 will attract and mag net 38 repel the armature, thereby rocking the latter upwardly. Conversely, a current impulse of 0p osite direction will, by reversing the po arity of the electromagnets while the polarity of the fingers 39, 40 remains chnstant, rock the armature downwardly. An exceedingly quick actuation ofthe anchor, which is fixed on the non-magnetic connecting member li, is thereby obtained, and the operation also requires very little current. This rocking of the armature releases the anchor pallets alternately from i the scape wheel and so permits the type wheel shaft 18 to rotate step by step until the desired pair of characters are at the To limit the movement of the armature and the anchor in each di- 44 are provided, to cooperate with a lug 45 extending forwardlyfrom the connecting member 4]. which rpgppprts the anchor and the armature tigers} The tape on whichdihc'impressions are made is wound on a reel shown diagrammatically at l7 at the base of the machine, andipassing over a spring guide 48, is fed forwardly between the type wheel and the platen 49 (Figs. 1 and 2) by means of a cramp disk 51 mounted on a spring arm groove into which the teeth of the feed wheel may project. In front of the platen the tape passes downwardly over a guide 53, and thence out through the opening 15 in the base 14. The feed wheel is mounted on a short shaft or stem 54, journaled in the side frame 11 and provided with a. ratchet- 55 actuated by a pawl 56 pivoted on the forward end of an arm 57 which is rigidly but adjustably mounted on'the armature shaft 27. The pawl. 56 being held in engagement with the ratchet by a light coil spring 58 it will be seen that when the magnet 28 is energized, thereby rocking shaft 27 clockwise as viewed in Fig.- 6, the pawl will be retracted over a tooth on the ratchet and thatwhen the ma et is deenergized the reverse rockin o the shaft 27 by the coil spring ,31 wil advance the pawl, thus giving the feed wheel-50 asllght movement of rotation sufiicient to feed the tape forward ,a distance equal to one letterspace. Durin retraction of the feed-pawl the feed whee is held stationary by a spring holding pawl 59.

The type wheel is inked (Figs. 1 and g) by an inking roller 60 rotatably mounted m a yoke 61 ivoted to the side frame 11 so that the to er bears by gravity on the type y wheel,the rear end of the yoke artia. counter-balancing the weight of t e roller and thereby lightening the ressure thereof on the type wheel. The ace of the inking roller is of soft spon rubber or equivalent material and IS in ed by eriodical contact with fibrous brushes 62 (Fig. 3) drawing ink by capillary attraction from a tubular ink reservoir 63 pivoted on the frame 11. On the reservoir is a light arm 64 extending laterally and having a finger 65 adjacent and rallel to the fly-wheel 33. The latter is pro igded with 9. lug 66 which, once in each revo ution, en 'ages the finger and swim s the same and t e ink reservoir forward ringin the brushes 62 into con tact with the in in roller and applying ink thereto. When t ie in passes the finger the reservoir drops back y gravity, withdrawing the inkmg brushes from contact with the roller.

The printing-is effected .by the platen 49 carrying the tape against the inked type; and inasmuch as the characters on the two type wheel disks are in axial register it will be seen that if both sides of the tape are carried against the type wheel'bythe platen the tape would receive two impressions, one

from each disk. In'order to prevent this,

so that only one impression can he made at a time the platen, hich is mounted on the arm 57 and hence is actuated by the magnet 28, is constructed as follows: The body ()7 of the platen (Figs. 4 and 5) is tubular and is rectangular in cross section, and contains a horizontally reciprocating cam member 68 ose-12a of inverted if form. Slidahle vertically in I I readily understood, if the cam member is against the disk 37. In each case moved to the right it. will depress the plate 69 and raise plate 79. "it will also be seen that with plate (59 elevated the left-hand portion of the tape will he brought against the type disk 16 when the platen is raised, and thatwith the platcllO raised the righthand portion of the tape will he carried the portion which should not reach the adjacent type-dislt is held away from'the same'by an arm 71 extending from a support "72, on which it is adjustablymounted, to a point between the type disks and aboveand beyond the space between the printing plates F or the purpose of shifting the cam member 68'to elevate and depress the platenplates 69, 70, the leftwardly extended end of the member is provided with two pins 73, engaging between them a "finger 74 extending dmvnwardly from a shifting device 75 fulcrumed on the arm 57. This device is inv the form of a lever having arms 76, 77, and

I having at its fulcrum an inverted ii-shaped cam lug 78. engageable on one side or another hya i-shaped shifting spring '79. If the arm 76 be depressed from the'position shown in Fig. 4, it is apparent that the inof the spring the latter will stant the cam lug 78 passes the lower edge immediately continue the movement of the le er, in' stantly throwing the cam member 68 to the right. Similarly, depression of arm 77 causes instant movement of the cam member toward the left. The use of a Vshaped shifting spring insures that the lever will always be fully actuated and will at no time remain in a horizontal or half-wayposition. The spring also holds the lever in position and prewl nts the pressure of the printing plates against the type disks from causing depression of the plate which happens to be in operation at the time. The leftward movement of the cam mcmbcrli ds limited by an adjustable stop at the outer cud thereof, cooperating with the outer face of the body portion 67, said stop comprising a small eccentric disk 68 held in adjusted position by a screw (58".

The movement of the shifting lever 75 is initiated by one or the other of two fingers 80, 81. extending radially in opposite directions from the type wheel shaft 18. When it is desired to print letters onthe tape the shaft is rotated by releasing the scape wheel the propernumber of times to bring the finger directly over the arm '37 of the shifting lever '75. Now when the platen is raised by the magnet 28 the arm 77 strikes the finger 80 and is depressed, thereby slnfting the lever and causing the cam member to be thrown to the left. Similarly, when the finger 81 is brought over the arm 76 the cam member will be shifted to the right and impressions will then be taken from the type dish 17. Blank spaces may be left on the type disks, to reach the impression point when the corresponding finger 80 or 81 is in operative position, but to economize space on the disks it is preferred to provide each dish with a useful character at suchpoints, as for example a period or other mark of punctuation. By providing thesamecharactor on both disks the character may be printed from either diskwit-hout causing the cam member 68 to be actuated.

The downward movement of the printing arm 57 is limited by a stop 82 on the frame ll, and its upward movement is limited by .a pivotally adjustable stop 83 on the same frame.

Theunison device is of the type illustrated in my copcnding application Serial No. 685,145, and comprises a SllOllZPlGCQ of wire E-l, (Figs. 1 and 3), coiled hclically-on the,

type wheel shaft 18 in the manner of a screw thread, engaging the lower edge of an arm S5 mounted to swing vertically in a stud 86 which is itself capable of slight rotary movement in the arm 87 on which it is carried. As the shaft 18 rotates thewirc 8% carries the arm 85 to the left until eventually a leftwardly extending pin 88 on said arm is brought into the path of a. finger 89 on the shaft, formed by the projecting end of the v. ire 84. This brings the receiver into unison with the distant transmitter, and further rotation of the type wheel is prevented by the finger 88 until an impression is taken lrom the type Wheel. When this operation takes place an arm 90, consisting of a wire coiled tightly around the arn'iature shaft 27 and having its free end bent laterally under the arm 85, raises the latter out of the engagement withthc thread 84 and permits the coil spring 91 to swing it back to its initial position with the finger 88 out of the path of the stem 89. Of course this return of the arm 85 to its rightward or initial position occurs whenever the armature 92 of magnet 28 is depressed by the magnet, re-

gardless of whether or not the finger 88 and 89 are in engagement; but where the printing operation is performed frequently enough to keep the two fingers from engagement there is small likeliho-od'of the transmitter and the receiver bcing'out, of unison. In practice the sending operator can, from time to time, bring the two into,

unison by rotating the type wheel shaft without I gagcment of the-unison fingers.

printing, far enough to insure enthat is, it operates on a single transmission circuit, and the three electromagnets are in series. Any suitable transmitter may be employed which is capable of sending current impulses of alternating clarity and of prolonging at will any impu se of either polarity. The magnets 37 and 38 have a small time constant and are therefore energizable by the short current impulses, thereby quickly bringing the desired characters on the type disks to the impression point. The magnet E26 is also energizable by current in either direction, but has a larger time constant and hence is not suiiioientl energized, by any of "the alternating impu ses which cause rotation of the type wheel, to actuate the armature 92 and the other mechanisms'connected to the shaft 27. When, however, the sending operator desires to print, the final impulse required to set the type wheel is simply prolonged, thereby giving the magnet 28 time to be fully energized. The armature 92 is thus depressed.

Practical use of the apparatus herein specifically illustrated and described has shown it to besatisiactory for the purpose for which it is designed, and it is the preferred form of the invention; but to ersons skilled in the art it will be apparentt at the invention can be embodied in other forms without departure from its proper spirit and scope as defined by the following claims.

I claim:

1. In a printing telegraph receiver, the combination of a pair of type disks in axial alinement, and rotatable to bring desired characters to thc impression point; a printing platen movable toward and from the type disks, comprising a body, a air of members carried by the body and s iftable therein toward and from the type disks, and ,means carried by the body and movable relatively t0 bot-h said members to shifteither member toward and the other from the type disks; and mechanism for actuating said. means, operated by movement of the platen toward the type disks.

2. In a printing telegraph receiver, the combination of a rotary type wheel having a plurality of circular rows of characters on its periphery; a platen movable toward and from the type wheel, comprising a body, a plurality of impression members carried by the body and shiftable therein toward and from the type wheel, and means carried by the body and movable relatively to all said 'members to shift any one of said members toward and the rest from the type wheel; and mechanism actuated by movement of the platen toward the type wheel cooperate said "means. i

In a printing telegra h receiver, in combination, a rotary type w eel having two circular rows of characters on its periphery;

'and means actuated by movement of 'and printing plates, one for cac lever harried by the arm, a

a platen movable toward and from the type wheel, coi'nprising a body, a air of impression members carried by the ody and shift able therein. toward and from the type wheel, and a transversely movable cam can ried by the body and coiiperating with the shiftable members to shift either of them toward and the other from the typ wheel; the platen toward the type wheel to mo e said cam.

4. in a printing telegra h receiver, in oomblnation, a rotary type w eel havin two alen rows of characters on its peri "llltlly; a p movable toward and from the type wheel, comprising a body, a pair of impression members carried by the bod and shiftable therein toward and from t e type wheel, and a sliding V-shaped cam carried by the body and cooperating with said members to shift either of .them toward and the other from the type wheel; and means whereby movement of the platen toward the type wheel may actuate said cam.

5. In a printing telegraph receiver, a

printing platen comprising a body, I quit of impression members carried by the y and shiftable therein in parallel paths, and. a V- shaped cam slidable transversely of said members and cooperating therewith to shift the same simultaneously but in opposite di rections.

6. In a printing telegraph receiver, a printing platen comprising a flat, rectangn lar body, a pair of impression plates carried thereby and shiftable therein in parallel paths, and a cam of inverted-V form slidable transversely of said plates and. cooper ating therewith to shift the same simultaneously but in opposite directions.

7 In a printing telegraph receiver, in combination, a type wheel having a. plurality of circular rows of characters and rotutable to bring desired characters to the impzession Joint; a platen comprising a memr mova le toward and from the t pe wheel row of characters, carried by said member and slidably mounted therein so as to be adjustable toward and from the type wheel; a V- sha ed cam member slidable transversely in said member and coiipcrating with the hinting plates to adjust the Silll'lt an oscillatory arm to reciprocate the cam member; and means at dating the arm, comprising a finger movable into the path of the lever as the same moves with the platen, to initiate the movement of the arm, and a spring associated with the lever to complete the movement and hold the lever at the end of the movement.

8. In a printing telegraph receiver, in combination, a type wheel; a spring assooiated with the type wheel to rotate the same; a shaft connected with the spring, and rotatill till

tableto tension the spring; an inking roller c'hoperating withthe type wheel to ink the same; a movable inking device for applying ink to the roller; and means actuated by said shaft to actuate the inking device.

9. In a printing telegraph receiver, in combination, a type wheel; meansfor rotating the same; an inking roller cotiperating with the type wheel; and mechanism, actu- 10 titted by the typewheel rotating means, to

apply ink to the inking roller.

10. In a printing telegraph receiver, the combination of a type wheel, means for rotating the same, an inking roller cooperating 15 therewith, a movable ink applying member for applying ink to said inking roller, and means for periodically moving'said member into cooperative relation with said roller.

Ilyln. a printing telegraph receiver," in

2 0 combination, a rotatabletype wheel; means for rotating the same; an inking roller cooperating with the type, wheel; a movable ink reservoir; mechanism actuated by said means for moving the reservoir toward and from the inking roller at intervals; and 25 means carried by the reservoir toengage the inking roller and apply ink thereto. 7

12. In a printing telegraph receiver, a type wheel; an inking roller cooperating therewith; a pivotally mounted ink reservoir, adjacent to the roller and having brushes to apply ink to the roller but normally outof contact therewith; an arm mounted on the reservoir; and a revolving finger arranged to engage and actuate the arm at intervals whereby to swing the reservoir and bring the inking brushes into contact with the roller. v r

In testimony whereof I my signature in the presence of two subscribing Witnesses. 40

GEORGE S. HILTZ.

Witnesses:

S. S. DUNHAM, B. R. SANDMAN.

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