US1791740A - Printing-telegraph receiver - Google Patents

Description

Feb. 10, 1931. s. MORTON E 1,791,740

PRINTING TELEGRAPH RECEIVER Original Filed June. 18, 1921 a Sheets-Sheet 1 wpwwwmdflm Y w Feb. 10, 1931.

SIM ORTON ET All PRINTING TELEGRAPH RECEIVER Original File ne 18,-1921 s Sheets-Sheet 2 j Feb; 10, 1931. s. MORTON ET AL 1,791,740

PRINTING. TELEGRAPH RECEIVER Original Filed June 18, 1921 G 'SheetS-Sheet 3 Feb. 10, 1931.

s. MORTON T AL PRINTING TELEGRAPH RECE IV ER 0rigina1 Filed June 18,1921 6 5heets-Sheet 4 fluent 0m 4227A, W dm wM/i Am, dig/w W, 64% Y/knufi.

s. MORTON ET AL Feb. 10; 1931.

1 ,791 740 PRINTING. ZI'ELEGRAPIH RECEIVER v 6 Sheets-Sheet 5' Original Filed, June 18 1921 Feb. 10, 1931. s. MORTON ET AL V PRINTING TELEGRAPH RECEIVER -6 Sheets-Sheet 6 Original Filed June 18, 1921 Patented Feb. 10, 1931 UNITED STATES PATENT OFFICE STERLING MORTON HOWARD L. KRUM, OF CHICAGO, ILLINOIS, ASSIGNOBSQBY MESNE ASSIGNMENTS, TO TELETYIPE CORPORATION, OF CHICAGO, ILLINOIS, A

CORPORATION OF DELAWARE PRINTING-TELEGRAPH nnonrvnn Application filed l'une 18, 1921, Serial No. 478,659. B.enewed February 20, 1929.

ing type bar printing mechanism similar to that of a standard type writer, and in whichthe electrical devices and circuits are simplified and the number thereof reduced to a minimum. The invention consists in the features of improvement hereinafter set forth, illustrated in preferred embodiment in the accompanying drawings, and more particularly pointed out in the appended claims.

, In the drawings:

rear of the improved printing telegraph receiver.

Fig. 1A is a detail view of one of the operating cams.

Fig. 2 is a plan view of the rear portion of the machine illustrating the selecting and operating mechanism.

Fig. 3 is a'view partially in elevation and partially in vertical section of the selector mechanism.

Figs. -4 and 5 are detail sections on the lines 44 and 55 respectively of Fig. 3.

F ig. 6 is a development of the controlling cams of the selector mechanism.

Figs. 7 and 8 are side and rear elevations of-the letter space mechanism.

Fig. 9 is a detail view of a portion of the carriage return mechanism.

Fig. 10 is a detail elevation of the case shift mechanism.

Fig. 11 shows plan and sectional views of portions of the function code bars together yvith corresponding portions of the selecting ars.

Fig. 12 is a detail elevation ofthe line space mechanism.

Fig. 13 is a view similar to Fig. 3, illustrating a modification, and

Figs. 14, 15 and 16 are detail views of the form shown in Fig. 13.

The frame of the machine is similar to that of an ordinary standard typewriter and comprises a base portion 10, corner uprights able carriage 13 is mounted in suitable guides Fig. 1 is a vertical section from front to 11 and a top plate 12. A transversely movat the upper rear portion of the frame and carries a cylindrical paper platen 14. The type bars 15 are carried'by suitable hangers on a segment 16 and are pivotally mounted in front of and below the platen and are arranged to swing upwardly and rearwardly and strike. the front of the platen. Upright sub-levers 17 arranged in rearof the segment are connected at their upper, ends to the individual type bars by links 18. The sublevers .17 are pivoted adjacent their lower ends upon a transverse rod 19 and'the extreme lower ends of the sub-levers are provided with pivot pins engaged by. slots formed in the forward ends of a series of code or actuating bars 20. Individual springs 21 connected to the forward ends of the code bars hold the latter and the type bars in normal position and tend to move the rear ends of the code bars upwardly into engageof five selector or permutation bars 22.

The selector bars 22 extend transversely of the machine through guide slots formed in the lower portion of a bracket 23. Lugs 24 (see Fig. 3) limit the movement of the selector bars and spring pawls 25 hold them in advanced or retracted positions.

The selector bars are adapted to be positioned as usual in different combinations and are so notched that in any settin one of the code bars can rise into the note es thereof. The rear ends of the code bars are normally held depressed by a transverse bail or drop bar 26 and each code bar has a shoulder 27 which, when the code bar is selected, extends into the path of movement of a striking bail 28. The bails 26 and 28 are mounted res ectively on transverse pivot shafts 29 an 30 mounted in end brackets 31 and are connected by adjustable operating links 32 to, arms 33 and 34 which are mounted on a transverse arms. 34 and 33 and the striking and'drop bails 28 and 26. Springs 40 and 40' (see Fi 2) connected to the bails 28 and 26 hold rollers on the arms 33 and 34 in engagement respectively with the cams 39 and 37 and the latter are provided with abrupt shoulders which, as they pass beneath the rollers on the arms, permit the springs to successively actuate the ails so that the selected code bar is lifted by its spring and then thrust forwardly by the striking ail. Preferably as indicated in dotted lines in Fig. 1, the striking bail swings on an arc having a short radius so that it is disengaged from the shoulder 27 of the selected code bar slightly before the corresponding type reaches the printing point, the continued movement of the type being effected by the momentum of the moving parts. In this way a uniform action is imparted to the type bars and the latter are free to quickly rebound from the printing point.

The arm 3 which operates the striking bail is forked and has one roller 41 which cooperates with the cam 39 as described. It also has a second roller 42 on the opposite side of the main shaft whichlis arranged to be engaged by the cam lug 38 after the roller 41 as passed the shoulder of thecam 39 so that, if the spring 40 of the bail fails to effect its operating movement, such movement will be positively effected by the cam 38. With this arrangement the bail 28 is sprin -actuated to effect operation of the type bars ut its operation is positively insured so that it can be employed also for operating the function mechanisms which, for the most part, re uire more power. Since the striker bar or ball 28 is thus positively operated, if necessary, to insure the actuation of the function mechanisms, the spring, which effects the t e bar operating movement of the bail, can e li ht and quick acting and need not be placed un er excessive tension.

The settin of the selector bars is controlled by a set of ve selectorsor plun ers 43 horizontall movable in line with t e left-hand ends 0 the selector bars which, as shown in Fig. 6, are preferably offset to align with suitable o nings in a supporting plate 47 at the side 0 the machine ame, and the pins 44 extend through notches 48 in a fixed cam ring 49 mounted on the inner face of the plate.

The selector actuator is connected to rotate with the shaft but is axially movable thereon. It comprises a cylindrical shuttle 50 keyed to a sleeve 51 which is adjustably connected to the shaft by a screw 52. A horizontal pin 53' fixed to the shoulder extends through an opening in a flange 54 on the sleeve and a spring 55 coiled about the pin holds a roller 56 on the shuttle in engagement with the cam ring 49. To reduce rolling friction the roller and cam ring are provided with conical contacting faces. As the shaft and shuttle rotate the roller is forced intothe notches of the cam ring by the spring 55 and thereby engage the pins 44'to advance the selecting plungers 43. The inner ends of the latter extend throu h a guide plate 57 and lugs 58 connected t9 t e plungers are fixed to guide pins'59 which also extend through the plate 57. Spring pawls 60' engage the pointed lower ends of the lugs 58 and hold the selecting plungerseither in. advanced or retracted posltions.

The receiver is operated in response to line signals of unifprm length and comprising permutations of two different line conditions extending through five intervals or units. In addition with the preferred form shown each signal is preceded by a uniformstarting line condition and the line is re stored to normal for at least a definite interval at the end ofeach signal. 1

When the selecting plungers are advanced the upper ends of the lugs 58 engage a cam 'disk 61 which is fixed to a sleeve 62 on the main shaft 36. At one point thecdisk 61 is provided with oppositely inclined cam lugs 63 and 64 which are arranged-to engage the beveled edges of the lugs 58. .A second cam disk 65 is fixed to the sleeve 62 provided with a cam lug 66 which is arranged to cooperate with the beveled edges of a seriesof upwardly projecting lugs 67 on the adjacent ends of the selecting bars 22. The cams move in the direction indicated by the arrow in Fig. 6 and are arranged so that the cams 66, 63 and 64 act successively to restore any advanced selecting bars, transfer the setting of the se- 'lectors 43 to the bars and restore the selectors for further operation, the arrangement being such that the selector bars are thus set before the bails 26 and 28 are operated to actuate the selected code bar and the selectors can be again-positioned before the printing of the pi'ecedding character selected thereby is comp ete The operation of the main shaft 36 and of the selector actuator 50 is controlled by electro-magnetic means in response to the-line impulses. The shaft is driven from a motor clutch. As shown, the motor shaft 68 is provided with aworm 69 which engages a worm wheel 70 which is fixed to a constantly driven clutch member 71. The latter is loosely mounted on the reduced outer end of the shaft 36 and cooperates with a driven clutch member 72 connected to the shaft. A sleeve 73 fixed to the shaft is provided with notches which receive lugs 74 on the clutch member 120 through suitable gearing anda start and stop 72 so thatthe latter will slide axially to engage and disengage the driven clutch member 71. Preferably, as shown, the engaged faces of the clutch member are provided with cooperating teeth. A spring 75 extending be: tween a flange of the sleeve 7 3 and the clutch member 72 tends to move the latter to close .the clutch but the clutch is normally held open by a pivoted trip 76 which is arranged to engage a lug 77 on the clutch member 72, the lever and lug having cooperating inclined faces which as they are engaged cam the downturned inner end .of the armature 80 is arranged to engage the outer reduced end of the shuttle when the magnet is deenergized, and, if the magnet is thus deenergized when the shuttle roller passes through one of the notches of the cam ring 48, the selector actuating movementof the shuttle is arrested and the corresponding selector plunger remains in retracted position. But if the magnet is energized as the roller moves into register with one of the notches 48, the roller will be forced into the notch by the spring and will operate the corresponding plungor as previously described. The shaft 36 is driven in substantial synchronism with the received signals so that the roller 56 registers with the notches 48 of the cam ring during the mid portions of the five selecting intervals or units of the signals,- and the selectors are thus variably set in difierent combinations in accordance with the different signals.

The trip lever 76 is provided with an end portion which projects within an internal cam 83 on the shaft 36 (see Figs 3 and 4). During the setting of the selectors by the conjoint operation of the rotary actuator and .magnet 81 the trip lever holds the latch 79 out of the path of movement of the armature 80'. But near the end of a revolution of the shaft :1 lug 83' on the internal surface of cam 83 engages the end of the lever and returns it to normal position in engagement with the latch 79 and, at the end of the revolution, the trip lever disengages the clutch member 72 and arrests the main shaft 36 in normal or zero position.

Preferably the circuit of the magnet 81 which responds to all line impulses is nor mally closed and the uniform starting inter val of each signal opens its circuit. Thereafter its circuit is variably opened and closed during the selecting intervals of the signal and again closed during the uniform spacing interval at the end of each signal and during which interval the clutch is opened and the shaft 36 arrested. The selector mechanism and printer are thus stopped at the end of each signal and again started in phase with the receiving signals by uniform starting intervals which accompany all signals. It should be noted that at each revolution of the shaft one character is selected and'the pre-v viously selected characteris printed.

The selector mechanism shown in Figs. 13, I4 and 15 is adapted to be controlled by a rotary distributor which is provided with suitable means for maintaining it in synchronism with the received signals. The selector bars, main shaft and controlling clutch are similar in construction to the corresponding parts already described, but the clutch instead of being tripped by the starting interval of the line signals is controlled by the usual sixth. pulse magnet 84 which directly opera-tes the pivoted clutch trip lever 85. The selectors are in the form of pivoted bell cranks 86 which are adapted tobe advancedby springs 87 but are normally held retracted by pivoted spring held latches 88. The latter are tripped b-y-plungers 89 operated by the armatures 90 of the set of five selecting magnets 91 to which the signal impulses are distributed. The selectors 86 are provided with plugs 92'which are arranged to be engaged by the setting and restoring lugs 63 and 64 of disks 61 and which, as already described, serve to transfer the setting of the selectors to the selector bars and restore the selectors for further operation during the printing of the preceding character selected thereby. A pivoted lockout member 93 extends beneath one end of the trip lever 85 and nor- (see Figs. 1, 7 and 8) and comprise a ratchet wheel 94 connected to the rear end of shaft 95, the forward end of which is provided with a pinion 96 meshing with a rack 97 on the rack. Shaft is Journaled in a bracket 95 on the upper rear portion of the frame. A depending portion of the bracket guides a veuticaly movable dog holder 98 which carries a pivoted, spring-held space dog arranged to engage the ratchet 94. The latter-is also engaged by a spring held holding effected'by a pawl and ratchet mechanism dog 100. The lower end of the do holder v 98 is adaptedto be engaged by an a justable abutment onv the rear end of an arm 101that.

that during the first half of the revolution of shaft 36, the feeding dog 99 is held substanstially in its normal position and 1s then lowered to engage the next tooth of the ratchet wheel 94. During the second half of the revolution of the shaft, the dog is raised to move the ratchet wheel and advance the carriage one step. At the end of the revolution, as stated, the roller drop-s into notch 105 of the cam and acts as a detent to hold the shaft 36 against accidental movement. Also when this occurs the feeding dog moves from the tooth of the ratchet 94 and the carriage return spring will hold the carriage in position with a tooth of the ratchet engaging the holding dog 100.

A number of code bars, preferably five, are provided for selecting certain functions, namely, case shift and release, line space, carriage return and signal. The line space and carriage return code bars 20 and 20 are connected to the lower ends of upright sublevers 17 and 17 (see Figs. 8, 9 and 12). The lever 17 is arranged to oscillate a lever 106 which is adapted to operate a spring held bail 107 mounted on the'shaft of the carriage platen. Asuitable spacing dog 108 on the bail is arranged to engage a ratchet wheel 109 fixed to the platen.

The lever 17 b is connected at its upper end by a link 110 to a bell crank 110 and the latter is connected by a link 111 to a cam 112 loosely mounted on the shaft 95. This cam is arranged to engage pins 113 on the spacing and holding do s 99 and 100 and thereby these dogs are disengaged from the ratchet 94 to permit the usual carriage spring to return the carriage. Notches-for the pins in the edge of the cam hold the dogs disengaged until the carriage return movement, is completed. When this occurs a lug 114 on the carriage strikes a corresponding lug 115 on the'cam 112 and restores ilt and the spacing and holding dogs to normal.

The three remaining function code bars 20, 20 and 20 are pivoted at their forward ends to a series of short pivoted levers 116, which are spring-held in position and are connected to their respective code bars by springs which tend to move such code bars upwardly into engagement with the selector bars 22. One of the levers 116 has an extension on its lower end which is connected at its lower end by a link 117 to a bell crank 118, and the latter is connected by a link 119 to a crank arm 120 on a rock shaft 121. Another end engages and releases the locking dog 123 and the type bar segment is restored to normal position for printing letters. Code bar 20 is arranged to operate an audible-signal of any suitable type. This codebar and one ofthe character code bars 20 are arranged on opposite sides of the case shift code bar 20, and the rear ends of these code bars are provided with depending stop lugs 123, 124, and 125 so arranged that normally the stop 124 on the shift code bar is above the lug 123 on J the signal code bar, but when the case shift is operated and locked in shifted position the stop 124 is above the lug 125 on the character code bar 20. Selecting bars 22 are sonotched that in a single setting in response to one combination both the code bars 20 and 20 are selected but only one will be operated in accordance with the condition of the case shift mechanism. Normally the character code bar 20 will be operated in response to this combination, but if the shift is in operated condition the signal code bar20 will be operated. I

The rear ends of the code bars-extend through guiding slots in a comb bar 126 on the bracket 23. A plate or bar 127 is mounted on the rear face of the comb bar by means of pins 128 which extend through inclined slots in the plate. The latter at one end has a depending portion 129 which is arranged to be engaged by any one of the function code bars when operated so that the plate is thereby lifted, as indicated in dotted lines in Figs. 7 and 8. lVhe-n so lifted a lug 130 on the inner end of the bar 127 extends into the path of movement of a lug 131 on the arm 101, and the latter and the spacing dog are not moved sufficiently to affect the letter spacing operation when the shaft 36 and cam 102 are rotated. When the roller 104 011 the arm 101 drops into the notch 105 at the end of the rotation of shaft 36 the lug 131 holds the plate or bar 127 in raised position, but, at the next operation as the roller rides out of the notch the bar 127 is released and drops back to normal. The spacing mechanism alone can be operated by a special signal which does not select any of the code. bars.

It should be noted that all the parts, in cluding the operating cams, are, shown in their normal or zero position in the drawings. The actuator is brought to rest with its roller on the extended raised portion of the cam ring 49 between the first and fifth selector actuating pins al v and which space corresponds to the starting and spacing intervals of the line signals. B rotatively adjusting the sleeve 51 on the shaft 36, the zero position of the actuator can bevaried to take care of the lag of the receiver starting means so that the shuttle roller will register withthe first selec-ting pin during the mid portion of the first selecting interval of the line signals.

Numerous changes may be niadein the details set forth without departing from the essentials of the invention as defined by the claims.

We claim as our invention 1. In a printing telegraph, a plurality of type bars, corresponding code bars and a set of cooperating selecting bars controlling the operation of any one of said type bars, a set of selectors, power actuated means operative upon saidselectors and said selecting bars to shift the same one after the other and arranged to successively restore said selecting bars, transfer the setting of said selectors to f said bars and restore the selectors, and electro-magnetic means for controlling the setting ofsaid selectors and the operation of said power-actuated means.

2. In a printing telegraph, a plurality of type bars, corresponding code bars and a set of cooperating selecting bars controlling the operation of any one of said type bars, a

power shaft, cams operated thereby arranged respectively to set and restore said selecting bars oneafter the other, and electro-magnetic means controlling the operation of said shaft and of said setting cam.

3. Ina printing telegraph, a plurality of type bars, corresponding code bars and a set of cooperating selecting bars controlling the operation of any one of said type bars, a set of selectors, a. start and stop, power actuated fixed to and rotating with said shaft and directly engaging said selecting bars and said selectors to successively restore said bars,

transfer the setting of said selectors to said bars and restore said selectors for further operation, and electro-magnetic means controlling the operation of said shaft and the setting of said selectors.

5. In a printing telegraph, a plurality of type bars, corresponding code bars and a set of cooperating selecting bars controlling the ing point.

operation of any one of said type bars, a set of selectors, a start and stop, power-actuated shaft, andthreesuccessively acting cams fixed to and rotating with said shaft and directly engaging said selecting bars and selectors, to restore the same and transfer the setting of said selectors to saidnbars. I

6. In a printing telegraph receiver, aplurality of type bars, corresponding code bars, a set of selecting bars and a common actuator cooperating with said code bars to actuate any one of said type bars, a set of primary selectors one for each selectin bar, a start and'stop, power-actuated sha means controlled by line impulses for setting said primary selectors and initiating the operation of said shaft, and four successively acting cams on said shaft respectively operative to restore said selecting bars, transfer the setting of said selectors to said selecting bars, restore said selectors and operate said actuator in the order named.

7. In a page printin telegraph receiver,

the combination with a ame of atravelling carriage thereon having a paper platen, a plurality of type bars mounted on said frame below and in front of said carriage and ar,-

- ranged to strike against the front of said platen, and means for selectively operating any one of said type bars mounted on saidframe below said carriage and in rear of said type bars and comprising rearwardly extend ing code bars connected at their forward ends to said type bars, a set of bars for selecting any oneof said code bars,'a common actuator for said code bars, a power shaft, and means actuated thereby for setting and restoring said selector bars and operating said actuator.

8. In a page printing telegraph'receiver, a plurality of upwardly and rearwardly striking type bars, upright sub-levers connected at their upper ends to said type bars,

horizontally extending code bars connected to the lower ends of said sub-levers, a set of selecting bars and an actuating bail cooperating with said code bars and arranged to directly engage thesame, a power shaft arranged above said selecting bars, and cams on said shaft for setting and'restoring said selecting bars and for operating saidbail.

9. Ina printing telegraph receiver, a plurality of type bars, actuating bars therefor, a striking bail,"a.set of selecting bars -controllin the engagement of any one of said actuating bars with said striking hail, the" .latter being arranged to swing out of engagement with the selected actuatin bar before the corresponding type reaches t e print- 10. In a plurality of type bars, actuating bars there,- for, a striking bail, and a set of selecting bars controlling the engagement of any one of said actuating bars with said bail, an actuating spring forsai-d bail,a cam controlling the printing telegraph receiver, a

operation of said spring, said bailbein arranged to swing out of engagement wit the selected actuating bar before the corresponding type reaches the printing point.

11. In a page printing telegraph receiver, the combination with a frame, of a movable paper carriage at the upper rear portion of said frame, a plurality of type bars arranged below and in front of said carriage, horizontally extending code bars arranged in the lower rear portion of said frame and connected at their forward ends to said type bars, a striking bail and a set of selecting bars cooperating with said code bars and arranged to directly engage the rear ends thereof, a set of selectors responsive to line impulses, a carriage feed mechanism, a main operating shaft mounted in the rear portion of the frame below said carriage, and means on said shaft for transferring the setting of.

said selectors to said selecting bars, restoring said parts and for operating said striking bail and said feed mechanism.

12. In a printing telegraph receiver, a plurality of type bars, function mechanisms, selecting mechanism and a common, springoperated actuator for said type bars and function mechanism and means cooperating successively with said actuator to permit the spring operation thereof and thereafter positively operate the same.

13. In a printing telegraph receiver, a plurality of type bars, function mechanisms, code bars corresponding to said type bars and function mechanisms, a set of selecting bars and a common spring-actuated striking bail cooperating with said code bars, a power shaft, and cams thereon co-operative successively with said bail for permitting the spring operation thereof and thereafter positively insuring its complete operative movement.

.14. In a page printing telegraph receiver, printing and function mechanisms, selector mechanism therefor including character and function code bars, a letter-space feed mechanism, including a feed dog and a reciprocating dog holder, a power shaft and means operated thereby for actuating the printing and function mechanisms and said dog holder, and means adapted to be shifted by the function code bars for preventing the complete reciprocating movement of said dog holder.

15. Ina page printing telegraphreceiver, printing and function mechanisms, selector mechanisms therefor, a common actuator for said printing and function mechanisms, a letter-space mechanism, a reciprocating actuator therefor, a power shaft, cams thereon for operating said actuators,and a member operated by the function code bars for preventing the complete reciprocating movement of said spacing actuator by its cam 16. In a printing telegraph receiver, printing means and function mechanisms mcludlecting and operating means cooperating with said code bars, said selecting means being arranged in one setting to select both the signal 'co de bar and a character code'bar and means for blocking'the operationof one of said bars controlled by the condition of the case shift.

17. In a printing telegraph receiver, printing means and function mechanisms including case shift and release and signalling means, individual selectable members for the characters, shift, release, and signal, and selecting mechanism arranged in one setting, to select said signal member and a character member, and astop for preventing the operation of one or the other of said members connected to said case shift means.

18. In a printing telegraph receiver, a plurality of type bars, a set of selecting bars and a striking bail for operating any one of said type bars, a set of selectors, a rotary actuator and a single selecting magnet cooperating to set selectors in different combinations in response to received signals, a power shaft for said actuator .and means on said shaft for striking member for effecting the operation of any one of said type bars, a rotary actuator operatively associated in order with said selectors for setting the same in different com binations, power driven, start and stop clutch for operating said selector actuator and said striking member and electric means responsive to line impulses for initiating the operation of said clutch and for variably controlling the operation of said rotary selector actuator in accordance with the received signals.

20. In a printing telegraph receiver, a plurality'of type bars, a set of selectors and a striking member for effecting the operation of any one of said bars, a rotary start and stop power shaft, means actuated thereby for setting said selectors in different combinations and restoring the same and for operating said striking member, and an electro-magnet for initiating 'the operation of said shaft and variably controlling the operation of said se lector setting means in response to received signals.

21. In a printing telegraph receiver, a plurality of type bars, corresponding cpde bars,

order with said selectors to set the same, and electro-magnetic means responsive to line impulses for initiating the operation of said shaft at the beginning of each signal and thereafter variably controlling the operation of said selector actuator in accordance with the signal. p

22. In a telegraph in which the signals consist of permutations of two difierent line conditions each preceded by auniform starting line condition, a printing receiver comprising a plurality of type bars, corresponding code bars, a set of selecting bars and a striking bail cooperating with said code bars to ope-rate any one of said type bars, a set of selectors adapted to'be positioned in different combinations in accordance with the received signals, a rotary actuator for positioning said selectors, a start and stop power shaft for operating said actuator and said striking bail, means operated by said shaft for transferring the setting of said selectors to said bars and for restoring said selectors, and electro-magnetic means forinitiating the operation of said shaft in response to the starting line conditions of each signal and'for variably controlling the operation of said selector actuator in response to the signal permutations.

23. In a telegraph in which the signals consist of permutations of two different line conditions each preceded by a uniform starting line condition, a printing receiver comprising a pluralty of type bars, corresponding code bars, a set of selecting bars and a striking bail cooperating with said code bars to operate any one of said type bars,- a set of selectors, a rotary actuator therefor, a start and stop power shaft for operating said actuator and said striking bail, cams 'on said shaft for transferring the setting of said selectors to said selecting bars and for restoring said selectors and selecting bars and an electro-magnet for initiating the operation of said shaft in response to the starting line condition of shaft and cams on said shaft for effecting the Gill each signal and for variably controlling the operation of said actuator in response to the signal permutations.

24. In a printing telegraph receiver, the combination of a plurality of type bars, actuating bars connected to said type bars, a universal striking bar for operating said actuating bars, a set of permutation bars and a second universal releasing bar directly cooperating with said actuating bars to selectively position the same in the path of movement of said striking bar, a power-actuated successive operation of said releasing and striking bars and for restoring saidper mutationbars.

25. In a page printing telegraph receiver, a plurality ofupwardly and rearwardly striking type bars, upright sub-levers connected at their upper ends to set the type bars, horizontal actuating bars connected to the lower ing bars and said striking bail, a power-actuated shaft and-separate cams on said shaft for successively operating'said bails.

26. In a printing telegraph receiver, a plurality of type bars, means for selectively opcrating said type bars comprising a set of permutation bars, a universal striking bar and auniversal releasing bar, a set of seltctors controlling the setting of said permutation bars, a rotary selector actuator and a line-controlled electromagnet cooperating to position said selectors in different combinations in response to received signals, and motor driven means controlled in operation by said magnet for rotating said selector actuator, effecting the operation of said striking and releasing bars and for restoring said selectors and said permutation bars.

27. In a printing telegraph receiver, a r0- tatable shaft. driving and driven clutch members controlling the operation of said shaft, a trip lever normally holding said clutch members disengaged, a latch for holding said trip member in operative position, a magnet for releasing said latch and a cam on said shaft for restoring said trip member to operative position in engagement with said latch.

28. In a printing telegraph receiver, a plurality of upwardly and rearwardly striking tvpe bars, uprightsub-levers connected at their upper ends to said type bars, horizontal actuating bars pivoted to said sub-levers and extending rearwardly therefrom, a'set of notched permutation bars adapted to be positioned to align the notches thereof and selec-.

tively control said actuating bars, the latter being vertically movable into and out of op-. eration with said permutation bars and horizontally movable to effect the operation of thecorresponding type bars a power shaft and cam mechanism operated thereby for effecting the vertical and horizontal movements of said actuating bars.

29. In a page printing telegraph receiver,

the combination with a frame, of a movable paper carriage at the upper rear portion of said frame, a plurality of type bars arranged below and in front of said carriage, horizontally extending actuating bars arranged in the lower rear portion of theframe and connected at their forward ends to said type bars.

a set of ermutation bars and a common striking said actuating bars and arranged to directlyen gage the rear ends thereof, a carriage anism and ineans on said shaft for efliecting er bar or respectively selecting and operat- I feed mechanism.

30. In a printing telegraph receiver, a plurality of upwardly and rearwardly striking type bars, vertical sub-lovers connected to said type bars, actuating bars pivoted to the lower ends of said sub-levers and extending rearwardly therefrom, a set of permutation bars and a striker bar arranged above said actuating bars and cooperating directly therewith to select and shift the same longitndinally to effect the operation of any one of said type bars, and a single set of springs connected to the forward ends of said actuating bars for holding the same and the type bars in normal position and for lifting the actuating bars into operative relation with the permutation bars and the actuating bars.

31. In a page printing telegraph receiver, a set offtypebars, function mechanism, actuating bars for said type bars and said function mechanisms, a letter-space feed mechanism including a feed dog, power operating means for said actuating bars and said feed dog including a cam and a spring for reciprocating said feed dog, and members actuated by said function bars and adapted to be interposed between said cam and said feed dog for limiting the reciprocating movement of said dog.

32. In a printing telegraph receiver, the combination with a plurality of type bars and function mechanisms, of actuating bars for said type bars and function mechanisms, a set of notched permutation bars for selecting said actuating bars, a set of primary selectors for determining the setting of said permutation bars, a selector actuator and an electromagnet coo crating to set said primary selectors mechanically in different conibinations'in response to received signals, and start-stop motor driven means initiated in operation by said magnet for driving said selector actuator, operating the selected actuator bar and for restoring said selectors and said permutation bars.

33. In a printing telegraph receiver, the combination with a set of type bars, a set of actuating bars connected with said type bars, a paper platen, a letter space feed therefor, a set of line-controlled permutation bars and a common striker bar cooperating directly with all of said actuating bars to select and operate the same and thereby effect the printing operation of any one of said type bars, a start-stop motor driven cam shaft, separate cams fixed to and rotating with said shaft for effecting the operation of said striker bar and said letter space mechanism and a stationary main frame wherein all of said parts are mounted.

34. In a printing telegraph, a plurality of selectors. cam means and a cooperating electromagnet for positioning said selectors in accordance with received code combinations of impulses, a corresponding set of notched permutation bars, cam means for shifting said selectors in accordance with the positioning thereof responsive to a received code combination of impulses to transfer the setting of said selectors to said permutation bars, cam means for restoring said operated selectors and cam means for restoring said operated permutation bars.

35. In a printing telegraph, a plurality of selectors, means for positioning said selectors in accordance with received code combinations of impulses, a set of corresponding selecting bars, cam means for shifting said selectors in accordance with the positioning thereof responsive to a received code combination of impulses to transfer the setting of said selectors to said selector bars, cam means for restoring said operated selectors, cam means for restoring said operated selector bars, and a plurality of type bars selectively operated in accordance with the operation of said selector bars.

36. In a printing telegraph, a plurality of I selectors, arranged to be successively operated in accordance with code combinations of received impulses, a plurality of selector bars, said selectors and selector bars having no fixed position to which they tend to'return, cam means for moving said selectors in accordance with received code combinations of impulses, said means also operating said se-, lector bars in accordance with the movement of said selectors and restoring said selectors and selector bars to their original position.

37. In a telegraph receiver, a plurality of selectors,a plurality of selector bars, said selectors and bars having no fixed position to which they tend to return, and power operated means for successively positioning said selectors in accordance with the positioning thereof by received code combinations of impulses, positioning said selector bars in accordan ce with the positioning of said selectors and restoring said selectors and said selector bars to their original position.

38. In a telegraph receiver, a plurality of selectors, a plurality of selector bars, said selectors and bars having no fixed position to which they tend to return, and power operated cam means for successively positioning said selectors in accordance with code combinations of impulses, for positioning said selector bars in accordance with the positioning of said selectors and restoring said selectors and said selector bars to their original position, and a plurality of type bars selectively operated in accordance with the positioning of said selectors.

39. In a printing telegraph receiver, a plurality of selectors, a plurality of selector bars, said selectors and bars having no fixed position to which they tend to return, and locally operated means for operating said selectors and said selector bars from original positions in accordance withreceived code combinations of impulses and restoring said selectors and said selector bars to said original position. 40. In a printing telegraph receiver, a plurality of selectors, a plurality of selector bars,

said selectors and bars having no fixed position to which they tend to return, and cam means for operating said selectors and said selector bars in accordance with received code combinatlons of 1mpulses and restoring sa1d selectors and said selector bars to normal and a plurality of type bars selectively operated in accordance with the operation of said selector bars. I

41. In a printing telegraph,'a pluralityof type bars, corresponding code bars, and a set of cooperating selecting bars controlling the rality of selectors movable from a non-open.

and of said setting cam.

42. In a printing telegraph receiver, a pluated to operated position in accordance with recei ed code combinations of impulses, saidselectorshaving no fixed position to which they tend to return when not being operated upon and means for operating said selectors to operated position in accordance with the positionin thereof by received code combinations 0 impulses and for restoring said selectors to their non-operated position;

43. In a printing telegraph receiver, a plurality of selectors movable from a non-operated to partially operated position in accordance with received code combinations of impulses, said selectors having no fixed position to which they tend to return when not being operated upon, andmeans for operating said selectors to operated" position in accordance with received code combinations of impulses,

and for restoring said selectors to their nonoperated position, said means comprising a plurality of cam members, 44. In a printing telegraph receiver, a plurality of selectors movable from a non-operated to partially operated position in accordance with received code combmatlons of'impulses, said selectors having no fixed position to which they tend to return when not'bein operated upon, a start-stop power shaft an cam operate means controlled by said start-stop power shaft for operating said selectorsto their operated sition in accordance with said code 'comb1nat1ons of .impulses and restoring said selectors to their normal non-operating position.

45. Ina telegraph receiver, a plurality of selectors, means for partiall operatin said selectors in accordance wit receive code combinations of impulses, and cam means for operating said bars fully to their operate positions in accordance with the position thereof by said code combinations of impulses, said selector bars having no fixed position to which they tend to return when nonoperated, said cam means being alsoarranged to restore said selector bars to their normal position.

46; In a printing telegraph receiver, a plurality of type bars, a single magnet startstop selecting mechanismfor selecting one of said type bars for operation, a striking bail for transmitting mechanical energy to move said type bar to its printing position for a printing operation, said bail being arranged to stop the transmission of said energy before the type-reaches the printing position.

47. In a telegraph receiver, a plurality of selectable actuating members, selecting means and operating means for said members, said selecting means being arranged in one setting to select two of said members, and means for interfering with the operation of either one of said two selected members controlled by the'condition of another of said selectable members.

48. In a telegraph receiver, a plurality o selectable actuating members, including a shift member, selecting means and operating means for said members, said selecting means being arranged in one setting to selecttwo of said members, and stop devices for interfering with the operation of either one of said two selected members controlled by the operated or non-operated condition of said selectable'shift member.

49. In a printing telegraph receiver, a plurality of type bars, corresponding actuating bars therefor, a set of permutation bars and a common striker bar cooperating with said actuating bars to effect the operation of any one of said t e bars, a set of primary selectors controlhng the setting of'said permutation bars, a motor shaft, start-stop means actuated by said shaft for settingsaid selectors in different combinations, transferring the setting of'the selectors to the permutation bars and for efi'ectin the operation of the striker bar, a single se ecting magnet responsive to'line conditions for-controlling the operation of said'start-stop means and for selectively determining the settin of said primary selectors in difl'e'rent combinations.

50. In a telegraph receiver responsive to definite interval code combinations of impulses, a plurality of selectable members, a set of permutation members, means responsive to received code combinations for variably settin said ermutation members to control sai selecta 1e members, said permutation members being arranged, in one setting in response to a complete code combination, to condition two of said selectable members for operation and means for lnterfermg with the operation of one of said two selected members controlled by another of said selectable members that is conditioned in response to a previously received code combination.

51. In a telegraphic receiving apparatus, a series of independently movable controlling selectors, a selector setting device, means for moving said selector setting device relative to said controlling selectors, a magnet responsive to the separate impulses of each code Signal to be received, means under control of said magnet whereby the selector setting device will be rendered operative or inoperative upon the controlling selectors successively on receipt of a signal, a series of notched permutation members positioned in accordance with the setting of the series of controlling selectors, and a plurality of elements selectable by said series of permutation members.

52. In a telegraphic receiving apparatus, a series of independently movable controlling selectors, a selector setting device, means for received code combinations, a rotary, motor driven member controlled by said magnet for moving said setting device past said control- I effecting the operation of said striker.

STERLING MORTON HOWARD L. KRUM.

moving said selector setting device relative to said controlling selectors in timed relation with the impulses of the received signals, a magnet responsive to the impulses of the received signals,'means for moving the selector setting device to and from each of the controlling selectors in turn and in timed relation with the impulses of the received signals, said last mentioned means being under control of said magnet, a series of notched permutation members positioned by said controlling selectors in accordance with their setting and a plurality of elements selectable by said permutation members.

53. In a telegraphic receiving apparatus, a series of independently movable controlling selectors, selector setting means, means for moving said selector setting means with respect to said controlling selectors, a magnet responsive to the separate impulses of each code signal received, means under control of said magnet whereby said selector setting means will be rendered operative or inoperative upon the controlling selectors successively according to the character of the signal,

printing mechanism comprising a series of notched permutation members adapted to be positioned in diflerent combinations to control the operation of said printing mechanism, and means for moving the controlling selectors to transfer their setting to the permutation members and for restoring the selectors for further operation during the printing of the selected character.

54. In a telegraph receiving apparatus, a series of independently movable controlling selectors, printing mechanism controlled thereby and comprising a series of notched permutation members, a plurality of character elements selectable by said permutation members and a striker, a selector setting device, a magnet responsive to the impulses of

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