US1086049A - Printing-telegraph receiver. - Google Patents

Description

G. S. HILTZ. PRINTING TELEGRAPH RECEIVER.

APPLICATION FILED APR. 10, 1913.

1,086,049. Patented Feb. 3, 1914.

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APPLICATION FILED APlLlO, 1913.

Patented Feb. 3, 1914.-

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G. S. HILTZ. v PRINTING TELEGRAPH RECEIVER. APPLICATION FILED APR'.10, 1913.

1,086,049, I Q iatented-Feh3, 1914.

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. v a? hi0 mtozuu' o I tar, -11, {W W i the printed tape issues as fed along by the machine.

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PRINTING-TELEGRAPH RECEIVER.

Patented Feb. 3, rem.

Application filed April 10, 1913. Serial No. 760,122.

tures applicable to so-called page printcrs it is designed more particularly for machines which print on a tape and which are known as tickers The chief object of the invention is to simplify thejapparatus and make it more positive and certain in'operation and more delicately responsive to the current impulses from the transmitter.

To these and other ends the invention consists in the novel features of construction and combinations of elements hereafter described.

A convenient and effective embodiment of the invention is illustrated in the accompanying drawings, in which- Figures 1, 2, and 3 are front, side, and plan views, respectively, of the complete Fig. 4 is a detail bottom plan view of a part of the inking mechanism. Fig. 5 is a vertical section substantially on the line 55 of Fig. 1, looking in the direction of the arrows.

The operative parts of the device are conveniently mounted on or between a pair of parallel frame plates 10, 11, which are themselves firmly secured to the upper portion of an upright cross plate 12 at tached to an arm 13 extending inwardly from an annular base 14.- The latter, provided with an opening 15 through which tape-feeding devices, is adapted to be seated on a suitable pedestal and to support the usual dome-shaped'glass cover, neither of which is shown herein.

The type wheelor carrier consists of two disks, 16, 17 with the desired characters on their peripheries, IGbearing letters and 17 hearing numerals and the usual fractions. These disks are mounted on a shaft 18 journaled in the side frame 10 and abracket 19 atthe top' of the frame 11, the typedisks or wheels 16, 17, being between the bracket and the adjacent side frame, as shown in Fig. 1. At the end of the shaft adjacent to the frame 10, at the left of the machine as seen from the front, is a pinion 20, meshing with a gear 21 loosely mounted on a transverse shaft 22, by which gear the pin I 1011 20, and with it the shaft 18 and type sioned to rotate the gear. For the purpose of thus winding up the spring the shaft 22 is provided with a fine-toothed ratchet wheel 25 (Figs. 1 and 5) actuated by a pawl 26 fixed on the armature shaft 27 of an electro-magnet 28. As the pawl is raised by the armature shaft the pawlfinger 29, pivoted on the end of the pawl, and 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 deenergized the fingenis retracted. Thus at each energization of the magnet the shaft 22 is given a slight rotary movement to tension the spring 24. During the retraction of the winding pawl the ratchet and shaft are held stationary by a spring holding pawl 32, cooperating with the ratchet. On the shaft adjacent to the frame 11 is a heavy flywheel or momentum device 33,"whi ch, under the vigorous impulse of the winding pawl, serves to rotate the shaft farther than. the

pawl alone would do. thereby winding up the spring more rapidly and insuring an adequate tension at all times. To prevent overwinding of the spring, which would of course have the effect of locking the parts so..that the pawl 26 and armature shaft 27 could not rock, the barrel 23 is made in two parts,an outer part 23 fast to the gear 21, and an inner part 23 to which the spring 24 is attached,'as shown in Fig. 5. The inner part consists ofa disk 23 fitting the outer part 23 and rotatable therein and on the shaft-22, and a flange 23 to which the spring 24 is' connected. On the said former is mounted loosely on the shaft and is connected frictionally thereto by a coil spring 20 at one end frictionallyengaging the shaft and at the other end similarly engaging the pinion. I

The rotation of the-type wheel and type wheel shaft, by the tension of spring 24:, to bring the desired characters to the impression point, is, as usually, controlled by an electro-magnetic escapement mechanism, comprising, briefly, a scape wheel 35 fixed on shaft 18, an anchor, 36, electromagnets, 3T, 38, and an armature. The latter is composed of a light permanent magnet 89 of the horseshoe type arranged in a vertical plane with its poles uppermost, as shown in Fig. 5, between the inwardly extending poles of the magnets 37, The armature is mounted attached at bottom to the top of a light blade-spring 39 fixed in a clamp 39 depending from a supporting shelf 39 fastened to the side frame 10. At the top the armature carries a member 40, of brass or other non-magnetic metal, in which the anchor 36 in mounted, and the swing of the armature is limited in both directions by adjustable screw stops d3, 4%, in the path of the member to, the stops lacing mounted at the top of two posts 43, in, rising from the shelf. 39. To regulate the distance of the poles of the magnets 37, 38, the magnets are mounted on carriers 37*, 38, which are themselves slidubly mounted on the shelf 39. These carriers are adjusted, and with them the magnets 37, 38, by adjusting screws 37, 38", and are held in adjusted position by binding screws 37, 38, extending through slots in the shelf 39. The magnets 37, 38, are so wound (in series; and the per manent magnet armature 39 so arranged, that when an impulse of a ceitain polarity comes in over the line the magnets 3? will attract and the magnets 38 repel the adja cent poles of the armature, and when an im pulse of the opposite polarity energizes the magnets, the armature poles will be repelled by magnets 37 and attracted by magnets 38.

The use of a permanent magnet as the escapement armature, preferably vertical in position, is an. important feature of the invention, as it affords a quicker response on the part of the armature to the changing polarity of the escapernent magnets, and requires much less current. for actuation, than any I have known in the course of a long experience in the art. These advantages are of great practical value, as they enable me to greatly increase the number of 1, and thesha'ft t8, the

tickers in a circuit without supplying additional current:

The printing devices, the unison mechanism, and the tape-feeding mechanism are exactly like those described in my copending application Serial No. 689,285, filed April 8, 1912, so that detailed explanation herein is not needed. Suffice it to say that the tape 46, drawn from a roll at, passes between the platen 67 and the type Wheels 1.6, 17, and that at each energization of "the printing magnet 28 the platen swings'up and carries the tape against the inked type on one or the other of the type wheels. The printin magnet 28 is energizable by current of either polarity, but has a larger time-constant than themagnets 37, 38, have. Hence the rapid alternations of current by which the armature 39 is oscillated to set the type'wheels have no eflfect on the armature 92 of the printing magnet 28, which armature actuates the arm 57, carrying the platen 67. When, however, the sending operator final current impulse that was sent to adjust the type-wheels is prolonged. The magnet 28 then has time enough to build up a field of sutlicient strength to overcome the load on the armature 92, with the result that the platen 67 is raised and the desired imprint is made on the tape. To limit the downward movement of the arm 57, fast on the armature, shaft 27 and carrying the platen 67, and the upward movement of the armature 92, an adjustable stop 57 is provided, pivoted on the side frame 11 and having at its top an eccentric rearwardly extending finger 57*. By swinging the stop on its pivot screw?! the linger is moved toward or from the shaft 27, after which the stop is secured in position by setting up the screw 57. A finger 57, depending from the stop, affords convenient grasp in making the adjustment.

The type wheels 16, 17 bear constantly upon and receiveinlr from an inking roller 60 above the wheels. The roller is journaled in a light U shaped frame'lOO, Figs. 2, 3 and 4, loosely mounted on a short transverse shaft 101 which is itself rotatably mounted in an arm 102 rising from the bracket 19 and in the adjacent side frame 11. Extending rearwardly from the frame is an arm 103 carrying an adjustable counterweight 10 1- by which the inlr roller 60 can be made to bear on the type wheels with the suitable pressur-.

For the purpose of supplying ink to the roller 60 I provide an ink reservoir 105 of cylindrical form, pivoted loosely on the shaft 101 by a pair of lugs 106. The ink reservoir is the rear of the roller 60, and. has a forwardly extending brush 107 vhich is kept wet with ink by capillary attraction. Extending forwardly reservoir 105 desires the machine to print, the

weenie is a lug 108 carrying a stud 109 which extends into the path of a cam-flange 110 on the adjacent side of the fly wheel 33. The weight of the reservoir tends to swing it rearwardly (clockwise as seen in Fig. 2) with the brush 107 out of contact with the roller but as the fly wheel revolves the cam 110, cooperating with the stud 109, swings the reservoir forward at intervals bringing the brush into contact with the roller and there applying ink thereto. 4

The yoke or frame 100, which carries the ink roller 60, is nct'only pivoted on the shaltlOl but is also slidable thereon, while the shaft itself is rotatable but is axially stationary Fixed. to the shaft at about the center thereof is a collar 111 in the form of an oblique cylinder having parallel end surfaces cooperating with a pair of fingers 112, 113, extending inwardly from the frame 100. The collar 111 thus constitutes a cam, which, when rotated by the shaft 101, reciprocates the fingers 112, 113 and thus shifts the frame 100 back and forth on the shaft. This moves the ink roller 60 across the path of the ink-applying brush 107, and cause the ink to be evenly distributed on the roller instead of being applied in a single plane, and moves the roller also across the faces of the type wheels thereby affording a more even and regular inking of the type thereon and effectually overcoming the tendency of the type to make grooves in the soft face of the roller.

The rotation of the shaft 101, to turn the cam 111 for the purpose above described, is effected by a small ratchet wheel 114 fixed on the outer end of the shaft and engaged by a pawl 115 pivoted on a lug 116 depending from the adjacent end of the ink reservoir 105. A light spring 117 holds the pawl against the ratchet, so that every time the ink reservoir is rocked by the cam 110 to apply ink to the roller-G0 the pawl 115 is advanced, thereby giving the shaft 101 and cam 111 a slight rotary movement. Backward rotation of the shaft and cam during retraction of the pawl is prevented by a friction spring 118 fastened. to the arm 10?. and engaging the adjacent end of the shaft.

The inking arrangement in a printing telegraph is an exceedingly important part of its mechanism, since the results of two little and too much ink on the type are equally unfavorable. If the type are in sufficiently or unevenly inked the imprint.

, is at the best imperfect and not easy to read,

while if the type are inked too copiously the imprint is smeared and often rendered illegible, .and the fingers soiled, in handling the tape. In my invention the parts can easily be so proportioned that the sufficient ink, and no more, is applied to the type to give a perfect imprint. Heretofore, where the-ink was so apt to be applied in too great amount, it'was necessary to use a rather quick-drying ink, with the result that the roller, would cake up. This, combined with the grooves produced in the felt face of the roller by the constant pressure of the type wheel in a single plane, made the life of the roller veryshort. In my invention, however, which applied the ink in the proper amount and in which both the ink from the supply brush and the pressure of the type are distributed over practically the entire face of the roller, 1 am enabled to use an ink which will dry quickly enough on the tape but will not dry on the roller. The net result, as has been demonstrated by actual use, is that the inking apparatus operates perfectly for. many months without the slightest attention, even though the machine, and hence the inking devices also, are actually in operation for only a few hours ofwardly, an upwardly extending U-shaped permanent magnet arranged between the electromagnets and mounted below the latter to oscillate on an axis parallel to the type wheel shaft, a nonmagnetic carrier mounted on the top of the permanent magnet, an anchor mounted on the carrier to embrace the scape wheel and adjustable toward and from the type wheel shaft, independently adjustable stops on opposite sides of the carrier to limit the movement of the anchor relative to the scape wheel, and means to adjust the electromagnets independently of each other toward and from the permanent magnet.

2. In a printing telegraph receiver, in combination, a rotary type wheel, a horizontal shaft on which the type wheel is fixed, a spring connected with the shaft to rotate the same, means, including a fly wheel, to tension the spring, a freely rotatable inking roller in rolling contact with the type wheel to ink the same, an oscillatory ink reservoir actuated by the fly wheel to supply ink intermittently to the inking-roller, means actuated by the oscillatory ink-reservoir to reciprocate the inking roller axially, and means to control the rotation of the type wheel in contact with the inking roller, comprising a scape wheel fixed on the type wheel shaft, an anchor cooperating With the scape wheel, an oscillatory permanent magnet to ink reservoir to reciprocate the a3, eanna-a with the ink reservoir to actuate the same,

. means actuated by the ink reservoir to reciprocate the inking roller axially, and means to control the rotation of the type wheel under the tension of said spring.

4:. In a printing telegraph receiver, in combination, a rotary type. wheel, means for rotating the type wheel, including a fly wheel, means to control the rotation of the type wheel, an inking roller in rolling contact with the type wheel, a pivoted ink reservoir having an ink-supplying device to cooperate with the inking roller, ated by the fly wheel to rock the'in'k reser voir on its pivot, and means actuated by the inking roller axially.

5. In a printing telegraph receiver, in

wheel, an inking" combination, a rotary type roller in rolling contact therewith, a pivoted ink reservoir having an ink-supplying device to cooperate with the inking roller, means to rock the ink reservoir on its pivot, and means actuated by the rocking-ink reservow to reciprocate the inking roller axially. 6. in a printing telegraph receiver, in combination, a rotary type wheel, an inking roller in rolling contact therewith, means for applying ink to the roller intermittently, and mechanism, actuated by said means, t reciprocate the roller axially.

a 7. In a printing telegraph receiver, a rotary type wheel, an inking roller manning contact therewith, a device rotatably supporting the roller and shiftable laterally to-w reciprocate the roller axially, a rotary cam associated with the supporting device to shift the same, and means to rotate-the cam 8. In a. printing telegraph receiver, a rotary type wheel. an inking roller in rolling contact therewith, a shaft parallel with the axis of the roller. a frame loosely and slidably mounted on the shaft and rotatably supporting the roller, a cam fixed on the shaft and associated with the frame to shift the same and the roller, and means "to rotate the shaft. i

9. In aprintmg telegraph receiver, in combination, a rotary type wheel, an inking roller in rolling contact therewith, a cam connected with the roller to shift the same axially, and means to rotate the cam, com

means actnprising 'a ratchet connected with the cam and a reciprocatory ratchet.

10. in a printing telegraph receiver, in combination, a rotary type wheel, an inking roller in rolling contact therewith, an inksupplying device movable toward and from 'the roller to apply ink thereto, means for actuating the ink applying device, a cam connected with the roller to shift the same axially, and means operated by the movable ink-supplying device to actuate the cam.

11. In a printing combination, a rotary type wheel, an inking roller'in rolling contact therewith, an inksupplying device movable towardand from the roller to apply ink thereto, means for actuating said device, a cam connected with the inking roller to shift the same axially, a ratchet connected with the cam to rotate the same, and a pawl carried by the movable inksupplying device and engaging the ratchet to rotate the latter.

12. In a printingtelegraph receiver, in combination, parallel with the axis of the type Wheel, a frame loosely and slidably mounted on the shaft, an inking roller rotatably mounted in the frame but axially immovable; therein, to apply ink to the type wheel, a two-faced cain tlx'edon, the shalt inside the frame, fingers inwardly from the frame into cooperation with the two faces of the cam wherebyrotation of the cam will reciprocate the frame and with it the inking roller, and means to rotate the same.

13. in a printing telegraph receiver, in combination, a rotary type wheel, an inking roller in rolling contact with the type wheel to ink the same, an ink-supplying device movable toward and from the roller to apply ink thereto at intervals, a cam connected with the ink-supplying device to actuate the same, a cam to reciprocate the same axially, means operated by the movable ink-supplying device to actuate the second-named cam, and typewhcel rotating 1neans connected with the first-named cam to actuate the same.

' 14:. In a printing telegraph receiver, in combination, a rotary inking roller, an ink supplying device movable toward and from the roller and equipped with means to apply ink to the roller over a limited area thereof at each application, mechanism for actuating the ink-supply device, and means for producing relative transverse movement between the ink-supplying device and the roller whereby the ink will be applied to the latter at dili'ercnt points across its face.

15. In a printing telegraph receiver, in combination, an inking roller, an ink reservoir pivoted to swing on an axis parallel to pawl engaging the a'rotary type wheel, a. shaftconnected with the inking roller telegraph receiver, in'

rock the ink reservoir, and means for proand means for reciprocating the roller ducing relative transverse movement beaxially. 10 tween the reservoir and the roller. In testimony whereof I affix my signature 16. In a printing telegraph receiver, in in the presence of two subscribing witnesses. J3 combination, an inking roller, an ink-sup- GEORGE S. HILTZ.

plying device movable toward and from the Witnesses: roller to apply ink thereto, means for aotuat- M. LAWsoN DYER, ing the ink-supplying device intermittently, S. S. DUNHAM.

Copies of this patent mey be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 10.0.

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