US1909283A - Printing telegraph - Google Patents

Description

y 16, 1933- a. E. KLEINSCHMIDT 1,909,283

PRINTING TELEGRAPH File d larch so. 1931 2 Sheets-Sheet 2 O O0 O0 0 O 0O 00 0 0 00 O0 000 000 000000 0000000000 INVENTOR Em E.v KLEINSCHMIDT .3%?

ATTOR Y easier to read.

Patented May 16, 1933 UNITED STATES PATENT- oFF'icEI EDWARD E. KLEINSCHHIDT, OF HIGHLAND.PA BK, ILLINOIS, ASSIGNOBLTO Tm CORPORATION, OF CHICAGO, ILLINOIS, A. OOBPORATION OF DELAWARE riizm'rmc *rmsanarn Application filed March 80,1931. Serial No. 626,885.

' This invention pertains to selecting mechanisms applicable to various types of selecting devices, and relates more particularly to apparatus selectively responsive to code combinations of selecting conditions especially adapted for the operation of printing telegraph mechanisms.

Heretofore in the operation of permutation code controlled high speed tickers special shift control signals were required to effect the recording of upperand lower case characters, in which event the shifting operation was initiated either by a shift impulse added to the code combination of a character, or by a s ecial code combination assigned to the shi t function. Whichever kind of shift signal is used, a shift operation is performed, while with the method here proposed no such operation is required, so that the apparatus is simpler.

In both the shift method which uses a permutation signal to shift and that in which one of the code elements is used, the two groups of characters -gare equal in number; while by the use of this invention the total number of characters may not only be divided into any number of groups but they may also be divided between the groups any desired way.

Accordingly the present invention provides a telegraphic printer of the stock ticker type which is operable without the use of a shifting mechanism or means, and employs a permutation device having six elements, and a single character corresponding toeach setting of the permutation elements.

Stock quotations at present are recorded upona wide tape; the letters being printed on one line usually the upper line, and the figures being printed on the other line, so that the quotations are separated and made The present invention provides the same method of recording but without a shifting mechanism.

Further objects will appearfrom the ensuing disclosure, and are defined by the, appended claims.

Figure 1 is a side elevation, shown partsignals as received over the signalling .aretranslated into letters, characters and ly in section, of a code disc ty e of selector.

Figure 2 is an end View of shown in Figure 1. p

Figure 3 is a fragmental top view showing the selector magnet and flutter cam arrarli gement. i ure 4 represents a si allin code suitable for this device. gn g Figure 5 is a view showing a strip of printed tape.

Fi ure 6 is a schematic representation of a 00 e bar type of selector with type bar recording mechanism.

Figure 7 is a front view of selector shown in Figure 6.

The device herein disclosed is similar to that disclosed in the co-pending application Serial No. 348,612, filed March 10, 1929 by S. Morton et al., and is likewise operated on the start-stop principle, to insure synchronous operation. The. signalling code employed to transmit characters, in the present instance, is a. six unit start-stop code, which consists of six selecting impulses used in various combinations of marking and spacing intervals. Each group of six selecting impulseszis preceded by a sta the transmitting apparatus and the printing apparatus.

While the apparatus shown is of the type known as start-stop it will be evident to those skilled in the art that each of the code discs can be operated by a magnet, and the magnets energized in any suitable manner, so that the printer, for-example, may be openated on one of the channels of a multiplex as shown in U. S. Patent #1,103,133

issued July 14, 1914 to A. F. Dixon.

The receiving selector mechanism shown in Figures 1, 2 and 3operates under the control of a single polarized el'ectio-magnet 11, (Figure 3) responsive to code combinations of impulses of marking and spacing conditions to oscillate its armature 12. As iswell known in the art, these electriiclael the selector impulse and followed by a stop impulse, to maintain-unison between functions by a selector mechanism of the type hereinshown and described.

Having reference to Figure 1, the pinion 13 is rotatably mounted on the shaft 14 of a governed motor (not showng-l and is adapte to intermesh with two 'ametrically disposed gears 15 and 16. Gear 15 is rqtabablymounted on typewheel shaft 17 which is suitably journalled in anti-friction bearings 18. Rotative motion is imparted to shaft 17 by gear 15 through frictional means of well known construction comprising essentially a pair of discs 19 of frictional material adapted to be spring pressed against said gear 15 by a sprin 21. R0- tatably mounted at the end 0 shaft 17 opposite to gear 15 are the stop arm 22 and the typewheel 23 whose functions will be set forth hereinafter.

Gear 16is affixed to a main shaft 24 which is rotatably mounted in anti-friction bearings 25 and 26 supported on the upwardly-extending spaced brackets 27 and 28 of the frame 29 of the apparatus.

Aflixed to the main shaft 24 directly to the right of anti-friction bearing 25 (as viewed in Figure 1) is the fixed ortion 31 of a toothed or grab clutch 32 t e sliding element of which comprises a toothed sleeve member 33. Member 33. is operably connected to operating cam 34 by means of splined connection 35 (shown dotted in Figure 1), through which connection positive rotative motion is'imparted to cam 34.

Formed on the right edge of the sleeve member 33 is a flange 36 having an inner cam surface 37 (shown dotted in Figure 1) adapted to engage a cam follower 38 fixed to the frame 29. The member 33 is normally held to the right out of engagement with the fixed portion 31 against the action of coiled spring 39 positioned between the flange 36 and the operating cam 34 which is loosely mounted on shaft 24.

Cam 34 is provided with an internal cam surface 42 adapted to cooperate with follower roller 43 rotatably mounted on stud 44 fixed to the end of printing bail lever 45 which in turn in pivotally connected at 46 to upstanding bracket 47 (Figure 2) of the frame 29 of the ticker. Pivotally connected to lever 45 substantially midway of its length is one end of link 46 the other end of which -is pivotally secured to the end of lever arm prising a pair of-discs 55 of frictional material adapted to be spring pressed against disc 53 by helical spring 56 in a well known manner. Durin predetermined cycles in the-.operation, the drive disc 53"is held against rotation and cam 34 is therefore stationary. To this end the drive disc 53 has formed on its periphery a stop lug 57 adapted to be engaged by a trip bail 58 at a certain interval in the cycle of operation of the printer. The trip bail 58 is pivotally mounted on the transfer bail shaft 59 suitably attached to the printer frame and is provided with a follower 61 adapted to move on a cam portion provided on the drive disc 62.

WVith the trip bail 58 engaging the stoplug 57, the drive disc 53 will be prevented from turning and will slip relative to r0 tational movement of the clutch and accordingly the operating cam 34 will not be rotating. When the trip bail 58 disengagcs the stop lug 57, the clutch will be released to rotate the operating cam 34.

The reason for the twofold control of operating cam 34 is to secure the advantages of a positive grab clutch for transferring power to cam 34 while at the same time ohviating the shock or jar due to the suddenstarting by engagement of the teeth of such a clutch through the use of the friction clutch 55. In this manner the operating cam 34 is started slowly at first from power through the friction clutch 55 and after a short initial movement or rotation is directly and positively coupled to the drive shaft 24 through the grab clutch 32, it being noted that the initial rotation of cam 34 together with interconnected sleeve 33 has allowed said sleeve 33 to move slowly to the left, due to the cooperation of cam surface 63 and follower 38, into engagement with the fixed portion 31 of the clutch 32.

Immediately to the right of anti-friction bearing 26 (as viewed in Figure 1) is fixedly mounted on shaft 24 a friction clutch assembly 64 comprising essentially a flanged sleeve 65 keyed to shaft 24, and a drive disc 62 interposed between a pair of discs 66 of frictional material, said discs 66 adapted to be spring-pressed against disc 62 by a coiled spring 67.

At the extreme right hand end of shaft 24 is rotatably mounted a selector cam drum 68 which is provided with a stop arm 69 adapted to engage a peripheral notch in the drive disc 62 and arranged to engage a stop lug 71 (Figures 1 and 3) which may be carried on the frame of the apparatus in any well known manner. The engagement of the stop arm 69 with the stop lug 71 occurs only when the selector cam drum or pin barrel 68 is in its left hand position as will presently appear. It is apparent that through the medium of arm 69, rotation is imparted to cam drum 68 by the drive disc 62. Thus the shaft 24 which supports the cam' drum 68 is adapted to be driven through the medium of gear 16 and pinion 13 to thereby rotate the cam drum, which is arranged so that it may slide or reciprocate with respect to the shaft.

As shown in Figure '3, the selector ma not, which is suitably supported in the tie tension 81 formed on one end thereof. The

mot-ion of the armature 12 is limited by the adjusting screws 82, carried by the members 83-on the magnet 75 and adapted to separately engage the opposite sides of the inner end of the armature 12.

As the magnet 75 energizes and de-energizes in accordance with marking and spacing impulses received over the signalling line, the extension 81 of armature 12 is moved into and out of the path of a flutter lever 84. The flutter lever 84 comprises two arms 85 and 86 arranged substantially at right angles to each other, the outer end of the arm 85 having a stop 87 formed thereon and adapted, when the armature 12 is moved to the right, to engage the extension 81 thereof. The flutter lever 84 is pivotally mounted on a pin 88 about which it is normally urged in a clockwise direction by spring 89, one end of which is secured to the frame and the other end to an extension 91 on the flutter lever 84. The other arm 86 of the flutter lever 84 terminates in a bifurcated jaw 92 having extensions or cam followers 93 and 94 formed thereon, the pptrpose of which is to be described .hereina er.

In operative relation with the bifurcated jaw 92 is the flutter cam 95 having a plurality of radially arranged right and left corrugations or apexes such as 96, 97 and 98 formed thereon and disposed at equal distances from the median plane thereof. The apex of each corrugation alternately engages either of the extensions or followers 93 or 94 of the bifurcated jaw 92 as the flutter cam moves by them, as will presently appear.

The flutter cam 95 is secured to and rotatable with the selector cam drum 68. The selector cam drum 68 as previously described is arranged to be rotated on the start-stop principle; and according to the relative position of armature 12 and flutter lever 72 at the instant when the code impulses are received, the cam drum 68 isreciprocated in either a right or left direction. As ma et 11 energizes and deenergizes in accor ance with marking and spac- 1ng impulses received over'the signalling line, not shown, armature 12 is moved into and out of the path of flutter lever 84. That is, as the flutter cam member 95 moves past projections 93 and 94, it will cause the flutter lever 84 to undergo either a clockwise or counterclockwise movement about pivot 88.

The spring 89 normally urges the flutter lever 84 in a clockwise direct-ion and accordingly holds the flutter cam 95 and the cam drum 68 against its right stop position. With the cam drum 68 at its extreme right position a left apex 97 of the flutter cam 95, as it moves past and engages projection 93, moves the flutter lever 84 counterclockwise carrying its stop 87 out of the path of armature 12. This condition is shown in Figure 3. As the inclined portion of the flutter cam, that is, the portion just preceding the right hand apex 98, passes through the jaw 92 of the flutter lever 84, the right hand apex 98 engages projection 94 and rocks the lever 84 in a clockwise direction. If at that instant, the line signal is such that the armature 12 is in its left hand position, the complete motion of the flutter lever 84 will be permitted and the cam drum 68 will accordingly remain in its normal right hand position.

If at such instant, however, the signal received is such that the armature 12 is in the right hand position, the stop 87 of the flutter lever 84 will engage with the projection 81 on the armature 12. The movement of the flutter lever 84 will accordingly be arrested. Inasmuch as lever 84 cannot move the flutter cam 95, the flutter cam will be forced to the left as its right apex 98 passes the extension or follower 94. In this manner the cam drum 68 will be moved to the right or left in accordance with the received spacing and marking impulses. The armature 12 is shown in Figure 3 in the marking position.

It is thus apparent that in response to a start impulse, cam drum 68 is moved to the right, as described above and the selector cam stop arm 69 is moved out of engagement with the stop lug 71. The selector cam drum 68 is thereupon rotatively driven through its connection with sleeve 65. In this manner the transmission of a starting or spacing impulse starts the selector drum revolving.

It will, of course, be understood that the cam drum is rotated at a speed which is in synchronism with the speed of code ulsing, each impulse being received just be ore the right hand corrugation is engaging the follower 94- and tending to rock the flutter lever 84 in a'clockwise direction.

Tlgfv selector cam drum 68 comprises a holl cylinder with twelve selector earns 99 projecting from its outer surface. Six of these cams are marking cams and six are spacing cams.

Associated with each pair of selector cams 99; that is, a pair comprising a spacing and a marking selector cam, is one of six selector levers 101, Figure 2, pivotally mounted on a shaft 102 suitably carried by the stock ticker frame, and on substantially the same horizontal center line as shaft 24. Each of said levers 101 comprises arms 103 and 104 located respectively above and below the selector cam drum 68. The ends of the arms 103 and 104 are offset with respect to each other, the lower or marking arm 104 being offset toward the back and upper or spacing arm 103 being offset toward the front of the printer, or toward the right as viewed in Figure 1. This is done so that when the marking cam.99 individual to this particular selector lever lines u with the arm 104, the spacing cam indivi ual thereto passes to the rear of the spacing arm 103 and when the spacing cam 99 is in line with the spacing arm 103, the marking cam will pass to the front of the marking arm.

Accordingly, in response to a marking impulse, the selector cam drum 68 (Figures 1 and 3) is moved to the left as described above, the extension 104 of the selector lever 101 will be engaged by its associated cam 99, and the companion spacing cam (oppositely disposed diametrically on cam drum 68) will pass by the extension 103. As a result of the engagement of the cam 99 with the extension 104, the selector lever 101 is rocked about its pivot 102 (Figure 2) in a counterclockwise direction. Incidentally a rod 105 common to all the selector levers 101 is suitably attached to the frame of the apparatus and is adapted to pass through holes 106 of larger size in each selector lever and is provided to serve as a stop for limiting the amount of oscillation of the selector levers.

On the other hand, in response to a spacing impulse the selector cam drum 68 will be moved to the right hand position as described above and the cam individual to the selector lever 101 will engage the arm extension 103 rocking the selector lever 101 in a clockwise direction (Figure 2) about the pivot 102. In this manner the selector levers 101 are set in one or the other position in accordance with the received code. The selector levers 101 have no normal position and are arranged to be maintained in either operated position until the impulse in a succeeding code is such as to move it to the opposite position. In order to insure against accidental movement of the selector levers to an alternate position, a latching means comprising a series of jockey levers respectively of a trans er T-lever 116 associated with each selector lever 101. Each transfer lever 116 is in alignment with the selector lever 101 above it and is pivotally mounted on a common pivot shaft 117 carried by a transfer bail 118 mounted on the previously mentioned transfer bail shaft 59. The transfer bail 118 is rovided at one cud with a roller or cam fo lower 61 and is in operative relation with the main or operating cam 34. The cam follower 61 is held in engagement with cam 34 by a suitable spring 121.

When cam follower 61 enters the low portion of cam 34 at a predetermined time in the cycle of operations, the transfer bail 118 moves counterclockwise (as viewed in Figure 2) about pivot shaft 59, thereby carrying the transfer T-levers 116 into ongagement with the projections 112 and 113 of the selector levers 101, whereby said T- levers are rocked in either a clockwise or counterclockwise direction depending upon which leg or projection 114 or 115 of the T-lever engages one or the other of said projections 112 or 113 on the selector levers.

Each of the transfer levers 116 is provided with a head 122 (Figure 2) projecting into a slot 123 of an individual notched code disc 124, one such disc being provided for each of the transfer levers 116. The code discs 124 are a part of the typewheel code disc selector 125. As shown, this latter device comprises a central spool member 126 to which are fastened a pair of guide discs 127 and a fulcrum disc 128.

Rotatable upon the central spool 126 through a small angular distance to one or the other of two selective positions, but having no normal position, are the said code discs 124. Spacers of appropriate form serve to maintain a definite axial spacing of said discs, but allow free movement thereof. Discs 124 are formed with V-notches on their periphery and are similar to those described and shown in the foregoing application except that in the present case the code discs are provided with twice the number of notches which are arranged to correspond with the code in Figure 4. Discs 124 are limited in their angular movement by slotted holes therein engaging ap propriate stops which form part of the bolts serving to fasten the selector assemblage together.

In operative relation with the code discs 124 are a series of stop pins 129, one for each character position upon the tfipewheel 23. Said pins 129 are spaced ua y about the periphery of the selector an are guide:

in radial slots in the guide discs 127. notch in the left end of each pin 129 engages the edge of the disc 128 and permits 581d pins to pivot freely thereupon, as will apmar.

l A radially contractible coil spring 131 girdles the pins 129 and is retained in position therewith by means of a depressed or boned portion in each pin wherein the spring rests. The spring 131 serves to move the selected in centripetally as will he described and a s0 serves to prevent the pins from accidentally becoming displaced. The pins extend to the right (as viewed in Figure 1) beyond the face of the right hand disc 127 for a short portion of their length.

The notches in the discs 124 are arranged so that selective permuted combinations of said discs will allow a notch in all discs to align, it being understood b those skilled in the art.that only one suc alignment of the notches can exist at a time. With the six discs there are sixty-four possible combinations and accordingly any one of the sixty-four index rods or pins 129 can be selected and the typewheel stopped in any one of sixty-four positions. U on sai alignment occurring 9. pin 129 will forced by the spring 131 to a position closer the center than it has formerly occupied, the pin entering the notches therefor. And upon a different selective combination of the discs occurring the aforementioned in will be cammed out by the V-notches an a new pin will drop into the new selective ali nment.

1 s each of the transfer levers 116 is rocked about the pivot shaft 117 as described above, it will in turn move the head 122, moving the associated selector disc 124 to either of its two operative ositions. If the transfer lever 116 is rocke clockwise, it will rotate its associated disc 124 counterclockwise. If lever 116 is rocked counterclockwise, it will rotate disc 124 clockwise. As the discs assume new positions, a new alignment of the notches will occur permitting one of the stop pins to drop therein as described above.

It will be noted from the description thus far given that although the selector cam drum 68 is operated successively, as the code impulses are received, and in turn successively positions the selector levers 101, the transfer operation for setting the code discs 124 takes place in a single operation as a result of the movement of the transfer levers 116 by the transfer bail 118 o crating on the main cam 34. As soon as t is transfer operation has taken place, the selector levers 101 are free for r eoperation in accordance with the new permutation while the code discs 124 selectivel control the positioning of the typewheel or printing, as will now be described.

Adapted to be rotated ast the rightwardly pro ecting ends of t e pins 129 is the typewheel stop arm 22. The length of the latter is such that it will rotate freely past unselected pins and be stopped by the one selected pin, whose closer proximity to the center causes such action. Accordingly the selection of different pins causes the arm 22 to stop in various selected positions depending upon the particular permutation code received, each code being identified with a particular typewheel angular position. The stop arm 22 1s adapted to be angularly adjustable on the shaft 17 by means of a set screw, so that an exact adjustment between the typewheel and stop arm may be made.

The shaft 17 constantly tends to rotate, but may be stopped when the sto arm 22 ailixed thereto engages any one o the operated stop pins 129. The stop pins 129 normally extend out of the path of the stop arm 22 as it rotates simultaneously with the typewheel 23. When, however, one of the stop pins 129 is dropped into a row of.

aligned notches of the code discs 124, this stop pin 129 moves into the path of the rotatlng stop arm 22, and hence will arrest its rotation, thus bringing the shaft 17 to a sto thereat. In this manner the typewheel sha may be selectively stopped at any position in its rotation. When the shaft 17 is stationary, the friction clutch 19 will slip, and the gear 15 will still rotate due to its direct connection with the constantly rotating pinion 13.

The typewheel 23 aflixed to shaft 17 comprises a hub portion provided with a pair of substantially semi-circular se ents 132 0 positely disposed diametricafi and in o set relation to each other. One of said segments 132 is provided with letter characters and the other is provided with figure characters. It is, of course, obvious that the typewheel could be cylindrical in form and have the type faces or characters arranged in the above manner, but such construction would make the typewheel unnecessarily heavy.

The typewheel 29, as described, is adapted to produce on a wide tape a rinted message recorded on either or both of two lines; the usual practice being to record or print the letters on one line, usually the upper line, and the figures on the other line.

As previously described, the printin hammer 52 is affixed to the right end 0 shaft 48 and is adapted to cooperate With typewheel 23. The platen 133 appropriately fixed to the end of printing hammer 52 is of suflicient width to cooperate with either portion or segment 132 of the typewheel 23.

When the cam 34 is operated in proper timed relation with cam drum 63, it by reason of its cam surface 42 causes lever 45 to rotate in a clockwise direction about its pivot 46, which lever in turn imparts through link 46 like rotation to lever 47 about its rock shaft 48. Lever 47 and printing hammer 52 both being afiixed to the shaft 48 are caused to rotate simultaneously. Thus it is apparent that the platen 133 is caused to advance toward the typewheel 23 thereby pressing the tape 134, interposed therebetween, against the type face presented thereto. Of course, it is understood that the upward movement of the printing hammer 52 and platen 133 is such as to impart a sudden or sharp blow against the type face thereby producing a printed impression on said tape, ink being su plied to the type faces by means of an m roller 135 as is well known in the art. The tape is supplied from a suitable source, as a tape reel, and is fed or advanced in a step-by-step manner for printing in pro er timed relation with the printing stro e of the hammer 52. However, the specific manner of advancing the tape is only incidental to the present invention; thus any well known method may be em loyed.

A suggested six unit signaling code is shown in Figure 4 in which it is observed that each letter and figure is provided with an independent six unit code combination. Heretofore it has been the practice to assign five element code combinations only to letters characters and to add to each such combination a sixth or shift pulse, the purpose of which is to operate a shift mechanism when figures are to be printed, which shift mechanism will remain inoperative when a letter signal is received.

In the present invention, however, the shifting function and consequently the shifting mechanism has been entirely eliminated, by providing a typewheel in which a separate angular position is provided for every letter and figure and in which the letters and figures are arranged in offset groups to print in offset lines. In Figure 5 is illustrated a strip of printed tape such as is commonly produced, and which is likewise produced by the apparatus herein disclosed.

General operation Having described the preferred embodiment of this invention, a brief description of the general operation thereof will now be given. It will be assumed that a signal is received comprising a start impulse which is always of spacing nature, and a code comprising, for example, a marking, spacing, marking, spacing, spacing and marking impulse for the six impulses of the permutation code, which in accordance with the suggested code shown in Figure 4 represents the numeral 1; and finally a marking or stop impulse is received.

As has been noted the magnet 11 is responsive to these received signals which control through the cam drum 68 and its associated parts the selection of the code discs 124. While the apparatus is in the position of rest, that is, while under the influence of the stop impulse the magnet 11 tends to hold its armature 12in its marking or left hand position (as shown in Figure 3) thus blocking the flutter lever 84 and thereby holding the cam drum 68 t0 the left so that the stop arm 69 thereon engages a stop lug 71.

In response to a spacing or start impulse the armature 12 is oscillated to its spacing or clockwise position, thus liberating the flutter lever 84, which is then permitted to respond to the action of s ring 89 to cause simultaneously a limited c ockwise rotation of lever 84 and a corresponding right ward movement of the cam drum 68. Stop arm 69 thus is disengaged from the stop lug 71 ,to initiate the rotation of said cam drum due to the seizing action of a friction clutch 66 (Figure 1). The cam drum is rotated at a speed which is in synchronism with the speed of code pulsing. Thus the reception of the succeeding code impulses will result in the selection of the code discs 124 in a permuted combination in accordance with said signal, as follows. At the instant immediately following the release of the cam drum 68 for rotation the projection 93 is opposite the corrugation 98. the lever 84 being in its alternate position from that shown in Figure 3. During the next movement, the projection 93 is engaged by a corrugation 97 and lever 84 is rocked counter-clockwise until the projection 87 is out of the path of armature 12.

The first code impulse being a marking impulse, the selector armature 12 is moved to the marking or right hand side which it is now free to do as the projection 87 is out of its path. As the flutter cam 9.3 continues to rotate, projection 94 is engaged by a corrugation 96 or 98 and rocks lever 84 clockwise. The flutter lever 84 is however blocked by the selector armature 12 and acco dingly the flutter cam 95 is'moved to the left as it rotates. As a result the marking cam 99 on the drum will be moved into line with the marking arm 104 of the first selector lever 101 and will move this lever to the marking position (shown in Figure 2) as the cam drum 68 rotates.

The succeeding impulse or second impuise of the code being a spacing impulse, the selector armature 12, is moved to the left or spacing position and the flutter cam 95 is thus released and the selector cam drum 68 is permitted to move to the right again. The second spacing cam is thus brought into line with the spacing arm 103 of the second selector lever 101 and as the selector drum rotates the second selector lever 101 will be moved to the s acing position. This operation is repeate for the third, fourth, fifth and sixth impulses of this code in the same manner. The selector levers 101 are maintained in their selected positions by means of the jocke levers 107.

After the reception of the sixth selecting impulse, the stop impulse is received. As this impulse is always marking, the selector armature 12 is in the path of the flutter lever 84 and the selector cam drum '68 is moved to the left. At this point in the rotation, the stop arm 69 strikes against the stop lug 71 and the selector cam drum 68 is held at rest until the reception of the next start impulse.

During the rotation of the selector cam drum 68 and after the reception of the fourth impulse, the roller 61 of the cam release or trip bail 58 rides into a depression in the edge of the friction disc 62. Through the action of a spring this roller follows the depression, the bail 58 is rocked until it disengages sto 57 and the operating cam 34 is released. he operating cam 34 starts to rotate shortly after the reception of the fifth impulse and through bail 118 and lever 45 operates the rinting mechanism. However, the letter prlnted will not be the one just selected, but a letter selected by the previous rotation of the cam drum, as described above.

Following the sixth impulse, the operating cam 34 has reached a position at which it operates the transfer bail 118 and the combination set up in the selector levels 101 will be transferred to the code discs 124. The selector cam drum 68 may at this time be at rest as described above or started into rotation again by a start impulse of the succeeding code. The operating cam, however, continues to rotate, to perform the printing operation by causing the platen 133 to be impinged against the selected type face on the typewheel 23 to produce on the tape 134 a printed im ression of the selected character, namely Thereafter the cam 34 is stopped as stop 57 engages the cam release bail 58.

The printing of the letter for the code, the selection for which has just been described, does not take place until the next selection is received and the selector cam drum 68 has revolved 'far enough to release the operating cam 34 at which instant the printing function is performed. Immediately after this the new selection is transferred to the code discs 124, and the operation of these discs to their new positions moves outwardly the operated pin 129 against which the typewheel stop arm 22 has been previously held and permits the stop arm to rotate until it strikes against a newly operated pin 129 which was permitted to move inwardly due to the notches in the code discs 124 being in line in this position in accordance with the new code received.

It will be seen from the above description that a letter which is selected during one revolution of the cam drum is not printed until another revolution of the cam drum. In other words, while one character is being selected, the preceding character is being printed. A complete overlap of the apparatus is thus provlded and the printer is operating at all times utilizing the full line time available while the code is being received.

Heretofore, six selector levers 17 and only five code discs 27 have been provided, the sixth selector lever serving to control a shift mechanism which determines whether letters or figures shall be printed. In such a case, the same five unit code combination would be set up on the five code discs for either a. letter or a figure selection, the presence or absence of a sixth pulse determining which character shall be printed by controlling the actuation of a shift mechanism. 1

In the present invention, however, the shift mechanism has been entirely eliminated and the sixth selector lever adapted to control a sixth code disc thus permitting an independent six unit code combination to be set up on the six code discs for each letter and figure, to effect the printing thereof.

Modification Figures 6 and 7 represent a modification of this invention adapted to a. type-bar tape printer of the type disclosed in U. S. Patent #1,7 45,633 to S. Morton et 211., dated February 4, 1930, in which the setting of a series of notched permutation bars 141 is controlled by a single magnet (not shown) to effect the actuation of individual pull-bars 142 substantially as described in the aforementioned patent.

Briefly, the permutation bars 141 are adapted to be set in different combinations in accordance with different code signals and are so notched that in any setting or alignment of notches one of the pull bars 142 normally guided in slots in the comb bar 143 can fall into the aligned notches under the influence of individual springs 144 associated with each pull bar. The urging of a pull bar into the aligned notches moves hook 145 of the pull bar into the path of pull bar bail or striker bar 146, which when operated, in a vertical direction as set forth in the above mentioned Patent #1,745,633 engages hook 145 and carries pull bar 142 upwardly against the action of its individual spring 144, one end of which is fastened to the pull bar, the other end being secured to a guide bar 147 fixed to the framework 148.

Each pull-bar 142 is provided at its lowermost portion with toothed rack 149 adapted to mesh with a segmental gear portion 151 of its associated type bar 152. Type bars 152 are pivolally mounted on a common pivot rod 153 and are adapted to assume normally a vertical position, as shown in full lines in Figure 6.

As previously mentioned pull bar 142 is adapted to reciprocate. vertically. In so doing it imparts through rack 119 aml segmental gear 151 oscillatory motion to type bar 152. Thus the upward motion of pullbar 142 causes its associated type-bar 152 to rotate in a clockwise direction from its normal vertical rest position to impinge its associated type face 15f sharply against the platen 155, the effective printing position of type bar 152 being shown in dotted lines in Figure 6.

The roller platen 155 is rotatably mounted on a shaft 156 held in a suitable framework (not shown). Said platen 155 is fixed against movement along its axis thus remiering it non-shiftable. operation the tape 157 and inking ribbon 158 (Figure 7) are interposed between type face 154 and platen 155 in printing relation therewith, as is well known in the art. The platen 155 is adapted to rotate in a stepbystep manner by a letter space feed mechanism (not shown), the tape 157 being held against the platen by a spring-pressed pressure roller 159, substantially as described in the previously mentioned U. S. Patent 1,745,633.

Analogous to the arrangement of the letters and figures on typewheel 23 (Figure 1) is the arrangement on the letters and figures on the type bars 152. The type faces 154 are so arranged in staggered fashion on the series of type bars 152 as to produce a printed record in offset lines similar to that previously described. That is, as viewed in Figure 7. the figures are located on the upper elevation and the letters on the lower elevation, to produce a printed record on a. tape in offset lines in the manner that is the usual practice in stock ticker operation. Of course, if it is desired to print a record in a single line the letters and figures type faces may be placed in a single row. For special purposes more lines of printing or a different grouping of characters may be desirable.

It will accordingly be seen that a printing telegraph apparatus has been provided in which the shift function and consequently the shift mechanism therefor has been entirely eliminated thus producing a device which is speedier in operation and simpler in construction than any heretofore provided.

This invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment is therefore to be considered in all respects as illustrative and Of course, in actual not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which comes within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

What I claim and desire to be secured by United States Patent is:

1. In a telegraph receiver, a plurality of pivoted type bars, a selector mechanism responsive. to receive code combinations of impulses to select a type bar for operation, a non-shil'table platen rotatable to form character spaces, each of said type bars being provided with a single type face, the relative arrangement of type in different bars being such as to produce a printed record in otl'set lines.

2. In a telegraph receiver, a plurality of type bars, a plurality of actuating bars for said type bars, a plurality of permutation memberscontrolling said actuating bars, a plurality of selectable members responsive to received code combinations of impulses controlling said permutation members, 'each of said type bars provided with a single type face, the location of said type on different bars being the sole means to produce a printed record in offset lines.

3. In a recorder, a platen, a plurality of type bars cooperating therewith, said type bars and platen being movable with relation to each other to form character spaces, each of said type bars being provided with a single type face, means to produce a record in two offset lines, the location of the type on the bar being the sole means to determine the line in which the character is printed.

4. In a type-bar printer; each type-bar provided with a single type, said type being divided into groups, record receiving material. means to record the different groups in different vertical positions on said ma-- terial, said positions being determined solely by the position of the type on said typebars.

5. In combination, type bars, each carrying single type faces representing a letter character or a figure character, record receiving material, means responsive to six unit code combinations of selecting conditions for. recording said characters in different vertical positions on said material. said positions being determined solely by the position of the characters on said type bar 6. In a recorder, a typewheel comprising a hub portion provided with a pair of dianwtrically opposed segments disposed in offset relation to each other, one of said segments carrying letter case characters. the other s gment carrying figures case characters, signal controlled means responsive to equal length received permutations of marking and spacing conditions to select one of the characters, and means to print the selected characters in ofi'set position on the record material according to which segment carries the character to be printed.

7. In a printing telegraph recorder, a type carrying mechanism provided with a series of characters arranged consecutively and in ofiset relation, means responsive to six unit code combination of selecting conditions for selectively printing the characters of each group in offset relation with r spect to the other, printing in offset lines being determined solely by the position of the characters on said type carrying mechanism, and said code combinations adapted to be assignable irrespective of case distinction to any one of said characters.

8. In a telegraph printer, segregated characters arranged in offset groups, and means responsive to equal length received permutations of marking and spacing conditions for selectively printing said characters in offset relation to each other, each permutation adapted to be assignable irrespective of case distinction to any one of said characters, said printing in ofiset relation being determined solely by the group to which the character belongs.

9. In combination; a typewheel having figures and letters case characters arranged in ofiset relation according to the case, all of said characters being angularly displaced from each other about said typewheel, and means responsive to equal length received permutations of marking and spacing conditions for selectively printing said figures and letters characters in ofiset relation to each other, each of said permutations adapted to be assignable irrespective of case distinction to any of said characters, said printing in ofiset relation being determined solely by the case to which the character belongs.

10. In a telegraph printer, segregated characters arranged in ofiset groups, a pinbarrel selecting device comprising a series of selector levers and corresponding series of transfer levers and selector discs, said device responsive to equal length received permutations of marking and spacing conditions for selectively printing said characters in ofi'set relation to each other, each permutation adapted to be assignable irrespective of case distinction to any one of said characters.

11. In a recorder, a typewheel comprisin a hub rtion provided with a pair of su stantial y semi-circular segments op ositely disposed diametrically and in 0 set relation to each other, one of said segments carrying letters case characters, the other segment carrying figures case characters; and means responsive to equal length received permutations of marking and spacing conditions for selectively printing said characters in ofiset relation to each other, each permutation adapted to be assignable to any one of said characters regardless of the group.

12. In a recorder, a type carrying mechanism provided with a series of characters to be recorded, said characters arranged consecutively on the periphery thereof and in ofl'set relation, a single magnet, means controlled solely by said magnet to determine the character to be recorded, and means controlled solely by the position of the character on the type carrying mechanism to determine in which of two positions on the record material recording is to take place.

13. In a telegraph receiver, a type carrying mechanism provided with characters arranged consecutively on the periphery thereof and in ofl'set relation, printing mecha nism cooperating with said type carrying mechanism, selector mechanism responsive to received code combinations of impulses, means controlled by said selector mechanism whereby said printing mechanism is effective to 'record a previously selected character while a succeeding character is being selected, the arrangement of said type on said type carrying mechanism being the sole means to determine in which of two ofiset lines recording is to take place.

14. In a telegraph printer, a plurality of pivoted type bars for printing on a tape, a selector mechanism responsive to received code combinations of impulses to select a type bar for operation, each of said type bars being provided with a single type face, and means including a non-shiftable rotatable platen to form character spaces, the relative position of said type and tape being determinative of printing in ofl'set lines.

15. In a telegraph printer, a plurality of pivoted type bars, a selector mechanism responsive to received code combinations of impulses to select a type bar for o eration, each of said type bars being provi ed with a sin le t pe face and means including a non-s ifta le rotatable platen to form character spaces, the relative arrangement of type in different bars being determinative of printing in ofiset lines.

16. In combination, type bars, each carrying a single type face representing a letter character or a figure character, record receiving material, means responsive to six unit code combinations of selecting conditions for recording said characters in different vertical positions on said material, the recording in offset lines being determined solely by the positional relationship between said tylpe faces and said record receiving materia In testimonywhereof I aflix m signature.

EDWA D E. KLEINS HMIDT.

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