US1177782A - Printing-telegraph apparatus. - Google Patents

Description

L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS,

APPLICATION FILED APR. 16. IBM.

Patented Apr. 4, 1916.

5 SHEETS-SHEET 1.

INVENTOR L. V. LEWIS.

PRINTING TFLEGRAPH APPARATUS.

)APPLICATION FILED APR. 16. 1914. 1,177,782. Patent-ed Apr. 4, 1916.

5 SHEETS-SHEET'Z- L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS.

n0 1 9 1 4* n p A d nu t H n? t a P A" M Rw R P A D E L H N 0 .H A c U P P A 2 8 7 9 7 7 1 Q 1 5 SHEETS-SHEET 3.

FIG.4

V I TNESSES W M aim L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS.

APPLICATION FILED APR. 16, 1914.

Patented Apr. 4, 1916.

A 5 SHEETS-SHEET 4.

fad;

INVENTOR J4 azz aw Q L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS.

APPLICATION FILED APR. 1-6. m4.

1,177,782. Patented Apr. 4,1916.

5 SHEETS-SHEETS- UNITED s'rarns OFFICE.

LLOYD v. LEWI-S, or nnenwoon sanction, PENNSYLVANIA, AssieNon. 'ro- THE UNION swrrcn & SIGNAL oomranr, or swIssvALn'rnimsYLvAnm, a'coaroaaraon or PENNSYLVAN PRINTING-TELEGRAPH APPARATUS.

Specification of Letters Patent.

I Patented A r. 4, 1916.

Application filed April 16,1914. Serial No. 832,252.

To all whom it may concern: 7

Be it known that I, LLOYD V. LEWIS, a citizen of the United States, residing at Edgewood borough, in the county of Allegheny and State of Pennsylvania, haveinvented certain new and useful Improve- I ments in Printing-Telegraph Apparatus, of

which the following is a specification.

My invention relates to printing telegraph apparatus, and particularly to the translator comprised in such apparatus.

I will describe one form of translator embOdyingmy invention; and. will then point Fig. 3 is a viewlooking at the left-hand end of Fig. 1, and showing a selecting device for the control of the translator. Fig. 4 is a sectional view on the plane indicated ---by- -'the*.-line.-IVIV in Fig. 3, looking in the direction of the arrows.

Fig. 5 is a view on the line V-V of Fig. 4, certain parts being omitted in order to show-clearly the relative locations of cams 14-and15- and eccentric 70. Fig. 6 is a sectional view on the plane indicated by line VI VI in Fig. 1. looking in thedirection'of the arrows.

Fig. 7 is a sectional view on the planes in-fff dicated by line -VII -VII in Fig. 1, looking inithedirection of thearrows. Fig. 81

is afragmental view showing in front ele vation a portion, of the apparatus which is omitted from Fig.1 because of being,lo" cated'in front of-fthe plane onwhich part of the latter view is sectioned." Fig. 9 is af vi'ewshowing a portion-of one of the per Similar'freference characters refer to Referringfirstto Figs. ,1; and'2,

mutation'b'ars B on an enlarged scale.

simila'rkpa'rts in each'of the views.

the reference character F designates a frame comprisinga bottom plate 1, a platform 2, and othen's'uitablestructural parts. Mounted on theijbottom plate 1 is an electric motor M whose rotatable member is connected with aspindlea on which is fixed a spiral gear drives a spiral gear wheel 5 which is fixed.

wheel 4., This gear Wheel meshes with and on a shaft 6 journaled in a side plate 8 and a bearing 7 both mounted on the platform 2. "The shaft 6 operates certain apparatushereinafter explained. Gear wheel 5 rotates in the direction indicated by the arrow in Fig. 2. 10 is another shaft which is jour-, naled in bearings 11 and 13. (see Figs. 4 and 6) both of which are mounted on the platform 2; this shaft also rotates in a ballbearing 12 located in the hub of gear wheel 5. Fixed on this shaft 10 are two cams 14 and 15 (see Fig. 4) which coact with rollers 16 and 17 respectively for purposes which will hereinafter appear. Also eccentri'cally connected With the shaft is a bar 70 (see Figs. 5'and 6) which actuates the printing mechanism as hereinafter explained. Q I

Shaft 10 is at times connected with gear wheel 5 by means of a ball clutch C'which I will now explain, referring 'to Figs. 1 and 2. This clutch comprises ashell 45 formed", 7'

as an extension of the hubof gear wheeljfi, and a'clutch plate 46 secured to the shaft 10' and located within the shell 45. Thepe-f riphery of clutch plate 46 is provided with a plurality of triangular notches 49 in each of which is located a ball 48. Each ball is acted upon by a spring 50 which is seated in a hole. in the clutch plate and which tends to force theball outwardlV so that it will wedgebetweenthe clutch pl'ate and-the shell and so clutch "the two together. To disengage the clutchthere is provided 'a disk 51,. loosely mounted on clutch plate 46, carryinga number of projecting studs 47,

which,{:whenthe disk 51 is held against rotatiompress against "andstopthe balls, the continued movement ofclutchplate 46 due to its momentum serving-,tofree the balls from the shell 45 and to compress. ,the

springs '50. 'Disk'51- is controlled 'bvan electromagnet 38 mounted on the platform '2. for whichpurpose the'disk is provided with a lip 91 which is engaged by a hook on the vertical arm of a pawl 54 pivotally' mounted in a lug 55 on hearing 11. Resting on the horizontal arm of this pawl is a stem 53 which carries a clamp 53 by means of which the stem may be pressed downwardly by armature 52 of magnet38 when the magnet is energized. Pawl 54 is acted upon bya spring 56 attached to hearing 11, which tends to holdit in position to en age the lip 91, but when magnet 38 is energized, arma-' ture 52 swings the pawl outwardlv against the action of the spring so that disk 51 is released- Armature 52 is pivoted in a magnet bracket 38*, and its upward movement is limited by a stud 57 which is screwedinto the bracket 38 and passes through a hole in the armature and carries nuts 57 by which the armature is stopped. ,It' will be seen that the clutch is engaged or not, ac-.- cording as the disk 51 is free to rotate or is held by pawl 54.

In the operation of the apparatus it is desirable that shaft 10 .should make only one revolution at a time, magnet 38 is, 3 therefore, magnetized only momentarily, so 5* and since these springs are mounted in clutch plate 46 the reaction against balls 48 and studs 47' would cause the clutch plate to rotate in the reverse direction and reengage, were no means provided to check this-reverse rotation. I therefore provide a single .tooth ratchet 58 fixed to the shaft and adapted to be engaged by pawl 59 due to the tension of spring 60. Pawl 59 is adjusted so as to engage the tooth of ratchet 58 at the point at which the energy of the rotating parts has been absorbed by the springs 50. The shaft 10, therefore, when at'rest, is held in a definite position between pawls 54 and 59, and when disk 51 is rapid and released, the engagement of the clutch is positive due to the tension of springs 50.

B, B, etc., are six permutation bars, one of which is shown in detail in Fig. 9, which bars are mounted in the following manner to reciprocatelongitudinally. Fixed on the platform 2 is a post 18 (see Figs. 1, 4 and 6) to one side of which a guide plate 19 is secured by bolts 20. .This guide plate projects from the post 18 and is provided with a rectangular hole'through which the permutation bars B slide. The bars are sepat d by a comb 21 having a slot for each which comb is attachedto the other isidel'of the post 18 by the bolts 20. Each bar rolls on a ball 24'which is located be- .tween the bar and the post 18 and is kept in place by the plate 19 and the comb 21 as shown in F ig. 4.. The longitudinal movement of each bar. is limited by a plate 22 which is clamped to the post 18 bv the bolts 20 and which projects into a slot 23 cut in each bar. The bars B are further supported and guided by another post 18 (see Figs. 7 and 8) mounted on platform 2 near the c( ther' end, and also by a middle post 18 with parts similar to those shown on post see Figs. 2 andS). Post 18- is provided 18 except that the plate 22 for limiting the reciprocation of the bars is not duplicated. The bars B are controlled by selecting apparatus which I will now describe.

Mounted on the platform 2 is an end plate 9 to whichare attached six selector magnets ,8, one for each permutation bar, each of which is adapted to press upon one end of a-stem 27 .mounted to reciprocate in guides '31 and 31 mounted on end plate 9. Each stem is acted upon by a spring 27 which tends to cause the stem to rest against its corresponding finger 26. The other end of each stem 27 is adapted to press upon one arm 29 of a three-armed driving pawl 29, which'pawls (six in number, one for each permutation bar) are pivotally mounted on a rod 30 mounted in a yoke 32 which yoke is mounted to swing on trunnions 33 supported in two arms 35 projecting from the end plate 9. Integral with yoke 32 is a rocker arm 32 in the end of which is journaled the roller 17 which coacts with cam 15. Another arm 29 of each pawl 29 is adapted to swing into and out of a notch 37 in the end of the corresponding permutation bar B, but the pawl is biased by a spring 29 to such position that its arm 29 is not in the notch 37. It will be seen that when a magnet S is energized, its finger 26 presses the corresponding stem 27 inwardly, thereby swinging the corresponding pawl 29 into the notch 37 of a permutation bar. The pawls are locked in this operated position by latches 36, one for each pawl, each of which latches is provided with a shoulder adapted to hook the end of the third arm 29 of the corresponding pawl when the latter has been swung to the operated position. The latches are pivotally mounted on a shaft 28 which is carried by lugs on guide 31. Each latch is actuated by a spring 36.

It will be seen. that if one or more of the pawls 29 are operated by the corresponding magnet or magnets S, and the yoke 32 is then swung by cam 15, thecorresponding bar or bars B will be moved to the right as viewed in Fig. 4. During this movement the pawl or pawls 29 are inoved away from the corresponding latch or latches 36, whose motion is limited by stops...36.... -The pawl or pawls, however, remain in engagement with their corresponding permutation bars on their forward stroke because of a slight undercut in notch 37 on the permutation bar B. At the beginning of the return stroke of the pawl 29, the pawl is freed from the permutation bar B, the latter being' held in its displaced position by fricto the positions in which they are shown in the drawing, I provide a yoke 39 which is connected by a spring 44 which is constantly under tension.

The operation of the parts thus far described is as follows: As shown in the drawings the parts are in what may be termed their ndrmal positions. It is understood that the motor M is constantly operating,

but that due to the clutch C it is normally disconnected from shaft 10. When a signal is to be received, one or more of the magnets S are first energized, thereby swinging the corresponding pawl or pawls 29 into the notches, 37 in the corresponding bar or bars B. The magnet 38 is momentarily energized, thereby releasing clutch C so that shaft 10 is rotated through one revolution. During the first part of this revolution, cam 15 (see Fig. 5) swings the yoke'32 inwardly toward the end plate so that those pawls 29 which have been 0perated move the corresponding bar or bars -B to the right as viewed in Fig. 41 Rod 40 in yoke 39 does not interfere with this move ment of the permutation bars because roller 16 rides off from the swell of its cam 14 at the same time and rate as roller 17 is raised by the swell of its cam 15. As the rotation of shaft 10 continues, roller 17 rides down from the swell of its cam and the pawls which have been operated are restored as hereinbefore explained, and yoke 32 is returned to its normal position by the spring 44 so that another combination may be set up byenergizing one or more of the magnets S. During the return of yoke 32 and the next succeeding portion of the revolution of shaft 10, the printing apparatus controlled by bars B is operated by eccentric rod as hereinafter explained, and just at the end of the revolution of shaft 10 cam 14 raises roller '16, thereby restoring the bar or bars B to their normal'positions.

The permutation bars B are provided with slots 61 which coact with a plurality of printer-controlling selector fingers 62 pivotally mounted on a rod 63 Which is 1n turn mounted in a comb 64 secured to the platform 2, This comb is provided with a pluralityof vertical slots 64 (see Flg. 2) one for each finger, and the tongues between these slots are each provided witha horizontal slot64 adapted to receive the rod 63. The rod 63 is fixed to the comb at each end by a pin.65 passing through the shaft and the comb, as shown in Fig. l. The fingers are guided near their upper ends by another comb 66 which is attached to a lug 66 on each end plate 9and 8 (see Fig. 1),

and which is provided with a plurality of vertical slots one for each finger Each finger 62 is acted upon by a spring 67 attached' to an angle bar 68 which is secured to the upper surface of comb 66, the tendency of which springs is to hold the finger in contact with'the permutation bars B.

The slots 61 in the bars B are so arranged that when all the bars are in the normal position there is but one finger, the one opposite slots 61*, for which the slots in each bar register, hence all of the other fingers are then held out of the slots; but that when one or more bars have been moved by cam 15, the slots in all of the bars will register for some other finger and that finger will be drawn into the slots by its spring 67, and the finger in slot 61 will be pushed out by the beveled surface of slot 61*. In order to restore to its normal position the finger which has thus been drawn into the slots 61, one side of certain of the slots 61 in each bar B. is sloped as shown in Fig. 9, so that as the bar or bars are driven back to normal position they drive the finger 62 out of the slots. It is not necessary that all of the slots should be thus sloped, but only those of each bar into which a finger falls when the bar has been moved by cam 15.

The fingers 62 may be employed to con-.

trol printing apparatus of any suitable kind; as here shown, they control the key levers 71 of an ordinary typewriter T, a portion of the framework of which is shown in Fig. 2, this typewriter being mounted on the frame Pivoted in trunnion screws 74 in end plates 8 and 9 is a rod 74 on which are fixed two arms 75 and 75, one adjacent each end plate. These arms are also connected by a rod 76, and these arms and rods together constitute what I shall term a rocker frame. This frame is rocked by the eccentric rod 70, the upper end of which is pivotally connected with arm 75, as shown in Figs. .5 and 6. For '5 and the bearing 77, and the other end of which rests on the top of rod 74. The forward end of each lever 81 lies over the space occupied by the upper end of the corresponding finger 62 when the' latter has been drawn into the slots in the permutation bars B. It will be seen, therefore,that when the v end 7 8 of a pawl 78 pivoted at 7 8 on end plate 9. Pawl 78 is biased by a spring 79 to the -rocker frame is drawn down by eccentric rod 70, all of the levers 81 will, if all fingers 62 are in normal position, rotate around the rod 74 and will cause no operation of the key levers 71, but that if a finger 62 has been drawn into the slots 61 in the permutation bars it will form a stop for the free end of the corresponding lever 81 and the latter will then swing around the top of finger 62 as a center and will depress the corresponding key leven'71, thereby causing a character to be printed by the typewriter or causing some other func ion to be performed in the typewriter.'-- The levers 81 are made of spring material, thereby securing elasticity of touch which eliminates the shock to the typewriter key action ordinarily associated with mechanical operation and hence permitsof high speed operation. Furthermore, the elasticity .of the levers 81 which operate ordinary key levers is preferably greater than that of the springs which perform the heavier functions hereinafter explained; that is, I vary the elasticity of the levers in accordance with the work to be performed thereby. Most of the fingers 62 and corresponding bars 71 are for the printingof characters, but finger 62 at one end of the machine, and fingers 62", 62, 62 and 62 at the other end are employed for special purposes as I will now explain.

Finger 62 controls the shift key '71 of the typewriter, that is, the key which shifts the paper carriage to print characters which are in the upper case. Referring particularly to Fig. 6., the shift key 71* of the typewriter has a downwardly extending tongue 83 provided with a shoulder 83 adapted, when the key is depressed, to catch under the dash line position, that is, to such position that it will catch shoulder 83* whenkey 71 is depressed. Finger 81 for actuating the shift key is provided with a downwardly extending hook pawl 82 adapted to engage with tongue 80. projecting from pawl 78.

The operation of theshifting apparatus is as follows: When'the rocking frame rod 76 is drawn downwardly without finger 62" having been swung into operative position, hook 82 swings into the right hand dash line position in Fig. 6,. thereby allowing pawl 78 to swing into the dashline position,

but key 71' is not depressed, so when the rod 76 returns the hook 82 draws pawl'7 8 back to the normal or full line position. If, however, finger 62 is moved "into the operative position, then when rod 76is drawn down, key 71 is depressed and hook 82 swings into the left-hand dash line position, therebyallowing pawl 78 to swing downwardly to catch shoulder 83 so that key 71 is held down after finger 81 returns. Then whenshoulder 83, thereby releasing key 71. It

will be seen, therefore, that when the shift key is depressed it remains down and is released when the rod 76 returns after print-. ing the next character.

Finger 62 accomplishes the line spacing; that is, it operates typewriter key 71 (see Fig. 7) which moves the message paper the space of one line. In order to accomplish another function hereinafter explained, lever 81 is caused to operate a ratchet wheel 91 in the following manner: Each time lever 81 is operated to depress its typewriter key 71 it also depresses one end of a crank 87 which is fixed on a shaft 84: journaled in end plate 8 and in bearing 7. Also fixed on this shaft near end plate 8 is a pawl 90 which coacts with the ratchet wheel 91 which is mounted in a suitable bearing on end plate 8, so that each time lever 81 is operated, ratchet wheel 91 is moved one tooth. The ratchet wheel is held from accidental rotation by a roller 100 carried on a pawl 100, which roller is pressed against the ratchet wheel by a spring 100 acting on' the pawl. The function of the ratchet wheel 91 will appear hereinafter.

In order that the messages may be printed. on sheets of paper of uniform size, it is de- 100 sirable that the first line of each message be started a given number of line spaces from the first line of the preceding message, which function 'is usuallv known as blanking. For this purpose, finger 62 operates special 105 apparatus which I will now describe, referring to Figs. 7 and 8.

The line spacing finger 62 is not formed of a single piece like the other fingers, but comprises a link 85 which is pivotally 110 mounted on the rod 63 and to which the finger portion 62 is pivotally attached by meansof a screw 85. Also pivotally connected to the link 85 is a link 92 the other end of which is pivoted to one arm of a bell- 11a.

behind finger 62" thisfinger swings around pivotal point 85 and thus causes operation of lever 81"; and when lever 81 is operated. the finger 62 is buckled outwardly at pivot 85 by crank 93 and link' 92 so that its upper end then also moves into the path of lever 81". Finger 62 is retained in this buckled I disconnecting it from said motor, a plurality of permutation bars, a cam on said shaft, line controlled means operated by said cam for selectively moving one or more of said bars, and means for restoring said bar .or bars.

s lever t as a center and the key lever is not operated;

3. Printing telegraph apparatus comprising a continuously operating motor, a

shaft, a clutch for connecting said shaft with and disconnecting it from said motor, a plurality of permutation bars, cams on said shaft, line controlled means operated by one of said cams for selectively moving one or more of said bars, printing means controlled by said bars, an eccentric operated by said shaft for actuatin said printing means, and means operate by another of said cams for'restoring said bar orbars.

4. Printing telegraph apparatuscor'nprising a typewriter having key levers, a rocker frame, means for rocking said frame,.a plurality of operating levers one for each key lever and each pivotally mounted intermediate its ends in said frame, one end of each operating lever being in o erative relation to its key lever, and a plurality of fingers onefor each operating lever movable into and out of the path of the other end of the operating lever, whereby when the rocker frame is swung and a finger is in the path of its operating lever, the operating lever oscillates around the-finger as a center and operates the correspondlng key lever, but when the fin er is out of the path of the operating he latter swings around the key lever 5. Printing telegraph apparatus comprising a typewriter havm ey levers and levers for performing 0t er functions in the operation of the typewriter, a rocker frame,

means for rocking said frame, a plurality of elastic operating levers one for each key lever and for each of the other functioning levers comprised in the typewriter, the elasticity of each of said operating levers varying in accordance with the work to be performed in operating its typewriter lever,

each operating leverbeing pivotally mounted intermediate its ends in saidframe, and having one end in operative relation to the corresponding typewriter lever, and'a plurality of fingers one for each 0 crating lever andmovable into and out of t e path of the other end of the latter, whereby when a finger is in the path. ofits operating lever an the rocker fram'e'is operated the operatingjlever swings around the finger as a center and operates the corresponding typewriter lever, but when the fingeris out of the path of the operating. lever the latter swings aroundthe typewriter lever as a' centel" and the latter is not operated.

6. Printing telegraph apparatus comprising a typewriter having character key levers not according as the corresponding finger is.

in or out of operative position, a pawl for locking the shift key lever in operated position, and a hook operated by the corresponding operating lever for releasing said pawl on the return movement of said operating lever while the latter is swinging around its first-mentioned end, said hook being inoperative to release the pawl when the operating lever swings around its second-mew tioned end.

7. Printing telegraph apparatus comprising line spacing mechanism, an operating lever for said mechanism, a finger. for controlling s'aid operating lever and movable into and out of controlling position, a con tinuously operating motor, a shaft,-a clutch interposed between said shaft and said motor, means for causing engagement of said clutch, means operated by said shaft for causing movement of said operating-lever to operate the mechanism when the finger is in controlling position, a counting wheel, a pawl controlled by the key lever for advancing the counting wheel at each operation of said mechanism, a blanking finger, a member controlled thereby for moving said mecha nism controlling finger into controlling position, a pawl for locking said member in the last-mentioned position, means controlled by said member when in said position for operatin the means which causes and a shift key lever, a rocker frame, a pluralengagement of said clutch whereby to cause A ity of permutation bars, a cam on sai shaft,

and line controlled means operated by said cam for selectively shifting one or more of sald bars.

9. Printing telegraph apparatus comprising a rotatable shaft capable of intermittent operation, a plurality of permutation 'bars,

printing means controlled by said bars, line position-by an arm 93* integral with crank 93, whicharm is locked by a pawl 96 pivotally mounted at 96 on end plate 8.- The depression of crank 93 also swings rod 95 which, by a projecting arm95'. fixed thereto, raises one end of a lever 97 pivotally mounted on middle post 18". The other end of this lever is thus depressed, thereby pressing downwardly on pawl 54 and releasing'clutch' This operation continues until a sthd 98 on the ratchetwheelengages pawl 96 and moves the latter to release crank 93, which then is returned to its normal position by a spring 99 acting on lever 87 It will be seei ,1 herefore, that' if finger 62? is buckled at 1e end of 'a message, the paper is moved to a certain-number of line spaces from the'beginning" of such message, the number of spaces being determinedby the number of teeth on ratchet wheel 91.

- sage paper, the typewriter carriage Cv should be returned to initial position inv orf It is, of course, necessary that when the end of a line has been reached on the mesder that the printing'may' be continued on the next line. 'To accomplish this return movement special apparatus is controlled by finger 62 to operate a carriage returntapev 118. Referring to Figs. 1 and-7, 105 and 106 are two coa'cting clutch members, the former of which is fixed. on ,shaft'fi and the latterof which is free to slide-longitudinally on the same shaft... Integral with clutch member 106 is a groovedfcollar106 and a gear 106". Fitting in the groove. of collar 106 is-a yoke 107 which is'fixedon a spindle 107 journaled in trunnionscrews which are mounted inlugs 1079 on end plate 8. .This yoke moves the clutch member 106 into and out of engagement with clutch member 105. This yoke is controlled by two wings .108 and 108" fixed to shaft .107, one 'of which is a'dapted'to engage with a hook on one arm of a latch 109 pivoted in a, bearing 110 [mounted on latform 2. This latch is biased to the hooking position by aspring 109. The other arm ofthis latch is'connected with a rod 94' which extends u wardly and is connected with lever 87 -wh1chis controlled by lever 81 and finger 62. Lever 87 is located behind lever 87 'in Fig. 7 and is pivotally mounted on shaft 84. When lever 87 d is depressed it swings latch 109 to release wing 108' which then permits yoke 107 to move clutch member .106 into engaging position, the yoke being biased'to move mthis direction y aspring107". Gear106" meshes with gear 112 which is secured to another gear 113', both .of, the latter gears being .wa'rdt is rod by springs 99", 99, 99 and a plurality of permutation .bars, cams on mounted at 114 on end'plate 8. Gear 113 meshes withla: gear 115 (-see Fig. 7) which is fixed to a shaft 116 extending through end plate 8, which shaft also carries .a drum 117 on the outside of the end plate. The flexible tape .118 which moves the typewriter ca rriage from left to right is wound on drum 117. It will be seen thatthe release of lever 108 causes the engagement of clutch 105 -106, thereby causing rotation of-drum 117 which returns the carriage. When the carriage hasreached its initial position, .a

cam 1'19-o'n dru'm117 depresses wing108, thereby swinging oke 107 to disengage'the clutch, and the yo e is then retained in this position by the hook on latch. 109. As here shown, the drum 11'7 is notrigidly secured to the shaft 116, but is mounted freely thereon and is connected therewith by a friction clutch which comprises two "lates 101 of spring steel'each of which is xed toa hub 102. Interposed between the plates 101 and the drum are two rings103 of fiber or other suitable frictional niateriaL- The hubs. 102 are pressed together by a nut 104 screwed on the end of shaft 116. B means of'this construction I avoid shock to the mechanism when the carriage starts and stops.

In order to signal to-the operator,.I provide 'a gong 120 whose clapper 121. is controlled by finger 62,. I This clapper is carried by a lever 122 pivoted on the bearing 110, which lever is connected, by a rod 94, with a crank 87, which is depressed when lever 81 is held by finger 62. Crank 87 is directly behind crank 87 in Fig. 7, and is pivotally mounted on shaft 84. It will be'seen then that when finger 62 falls into the slots of I the permutation bars, the depression of rod 76 causes the gong to sound;

The'upwar'd movement ofbell-cranks 87, 87, 87' and 87' is limited b a rod 123 fixed in end late 8. These cran s are biased to 99 respectively, eac of which springs acts against a rod 124 also fixed in end plate 8.

. Although I have herein shown and described only one form of apparatus embodying my invention, it is understood that various changes and modifications may. be made therein within the scope of the appended claims without departing from the spirit and scope of myinvention.

Having thus described my invention, what I claim is: v

1. Printing telegraph apparatus com prisinga continuously operating motor, a shaft, a clutch for connecting said shaft with and disconnecting it from said motor,

said shaft, line c'ontrolledmeans operated by one of said camsfor selectively moving one or more of said bars, and means operated by another of said cams for restoring 180 said bar or bars.

controlled means operated by said shaft during the first part of an operation thereof for selectively shifting one or more of said bars, means controlled by said shaft during the next portion of the operation thereof for operatingsaid printing means in accordance with the number and position of the shifted bars, and means controlled by said shaft during the latter part of the operation thereof for restoring the bar or bars which 1 were shifted.

In testimony whereof I afiix my signature in presence of two witnesses.

LLOYD V. LEWIS.

Witnesses:

A. HERMAN WEGNER, R. L. KISTLER.

Images