US884742A - Electric type-writer. - Google Patents

Description

I No. 884,742. PATENTED APR. 14, 1908-.

' J. LEMBLB.

BLBGTRI TYPE WRITER. AP PLIGATION FILED MAY. 25, 1907- 4 SHEETS-SHEET l.

fA/VE/VTORU/ Jam .5mm M W/T/VESSES N 88.4 742. P T T D A 11.14 1908.

0 J. LEMBLE. A EN E P ELECTRIC TYPEjWRITER,

APPLICATION FILED MAY 25, 0

19 7 4 SHEETS-SHEET 3.

FIG ...13

W/TNES SE8 K M vE/V 70 PATEN J. LEMBLE.

ELECTRIC TYPE WRITER.

APPLICATION FILED MAY 25, 1907' TED APR. 14, 1908.

4' SHEETS-SHEET 4.

PATENT OFFICE.

JOSEPH LEMBLE, OF SENNHEIM, GERMANY.

ELECTRIC TYPE-WRITER.

Specification or iietterslatent. Application filed May 25,1907. Serial No'. 875,625.

PatentedAprfl 14, 190B.

To all whom it may concern:

' Be it known that I, JosEPH LEMBLE, a subject of the Emperor of Germany, and resident of Sennheim, Alsace, Germany, have invented new and useful Im rovements in' :ElGQtIlC Type-lVriters, of which-the followmg 1s a full, clear, and exact specification.

The advantages'of the electric t ewriter are well known.- The power to e ect the impressions from the type is not furnished by the hand of the Operator, but is automatically obtained by electrical power on the movement of the keys. The result is. that the keys'can be struck legato and not staccato, that is to say, more lightly, conveniently and quickly than hitherto." i The strength of the im -ressions is also independent of the strengt of the blow applied to the keys, so that the impressions are uniform throughout.

The chief-difliculties in the" electric typewriters with ty 'e-wheel or drum hitherto V proposed lie in t e manufacture ot the cur-- rent contacts for the type adjustment of the cylindrical type-carrier, the hammer device for. eiiecting the type impressions, the paper carriage controlling mechanism and the final cutting off of the current. It has not yet been possible in connection with a series of keys to control all the contacts necessary for a complete operation in such a manner that the are each mechanically closed independent y of the other, that is to say, independently of one another and of magnet armatures, relays and the like. This problem is solved by the' ele'ctric typewriter forming the subject of this invention. To this end a group of key-levers through the medium of a common intermediate rocking shaft acts in conjunction with one and the'same contact wheel arranged to control a triple contact in I such a manner that on the depression-and 1 release ofany one of the key-levers the said contact wheel is displaced and directly effects a first contact for the adjustment of the typecarrier,,a second contact for the paper carriage controlling mechanism and a third for tile return of the type-carrier to its initial posi 'on and the locking of the same and also foigcutting oii the current.

' In the ac om anying drawings: Figure 1 is a plan view oi an electric typewriter constructed accordingto the invention. Fig. 2 is a vertical section on the line'AB, Fig. 1. Fig. 3 is a plan view of apart of Fig. 1, the paper carriage, type-carrier, its guides and the carrier retaining a ipertaining tprthe 1g. 4 1s a ont key-levers are removed. view ofthe t'y e-carrier and of a part of its guide-frame. ig. 5 is a transverse section on a larger scale of a part of the type-carrier and its guide-frame, the said section beingmade on the line C-D of Fig. 4. Fig. 6 isa.

'rear elevation on a larger scale o'f'a. "art of-the guide-frame forthe type carrien. ig. 7 is a vertical section ona larger scale made in Fig.

" 1 through a guide-bar for a ty e-carrier conj trolling ra'ck and through tact shdes, showing the said rack with type-' carrier keeping arms in elevation. Fi 8 is. a section on the line .MN of Fig. 7. Fig. 9 is a detail section on the line EF of Fig; 3, seen in the direction of the arrow 11.. Fig. 10 is a detail section on the line G of Fig. 3. Fig. 11 is a detail section on the line HI of Fig: 3-, drawn to a larger scale and showing the-contact wheel device. Fi .12 is a vertical cross section on the line' F of Fig. 3, seen in the direction of the arrow t. Fig. 13

is a horizontal section through the contact wheel device and the ty carrier drive, on the broken line K- L of ig. 11. 14 is a diagrammatic view illustrating the electric circuit and connections- The keyboard of the machine is divided into two groups of keys, a left hand group and a right hand group, to both groups of keys there are common the type carrier, which like a weaving shuttle is movable or slidable in a right and left, hand direction; the type striking device; and the paper carriage controlling device, while the contact devices and the electric type-carrier driveare separately provided for each group of keys of simplicity, only one group of keys, that is to say, the left hand group, is described.

. The key-levers 1 (Figs. 1 and 2) are loosely pivoted upon the rods 2 and each is provided with a projection 3 which extends bars for conackwards beneath the'stirrup 4 of a rocking shaft 5 common to all of them; each of the said levers 1 is ositively connected by means of a link 6 wit a bell-crank lever 7 so that when a key is de ressed the rocking shaft 5 is turned in the irection of the arrow a: and the lever 7 appertaining thereto in the direction of the arrow y (Fig. 2). of the bell-crank levers 7 project through an upper frame-plate 8 which protects the inner contact devices, the said arms terminating The free arms 95 In the following description, for the sake opposite a series of pins 9 which, when the levers 7 are swung out in the direction of the arrow y, are pressed backwards by the said levers in opposition to the action of springs 10, (Fig. l). The pins 9 serve a double purpose. Firstly, when in their rearmost position, they have to retain the type-carrier.in such a position that the type corresponding to the key struck is brought directly in front of a type striking hammer, to which end the distribution of the keys and the arrangement frame and theparts mounted-therein.

The type-carrier contains three superposed rows of movable types viz., an upper row containing types of the smaller alphabet, a middle type row of the larger alphabet and a lower row of types for other characters. It is horizontally movable in the direction of its length in a guide-frame, the upper and lower guides or rails 14 of which are of a U-shape, the said frame being also rovided with rear bars 15 (Figs. 4 and 5). T e guideframe, 14, 15, for thetype-carrier is arranged so that it can be vertically adjusted on upright pins 17, by means of lateral lugs 16, w ereby it is possible to so adjust the typecarrier, the upper row of types of which (small alphabet) is usually at the height of the head of the type striking hammer, that the middle or lower row of typescan be brought tothe level of the said'hammer head. This vertical adjustment of the type-carrier guiding frame is effected by means of two special key-levers 18 and 19 (Fig. 1), of which the lever' 18 is pivoted at the point 20 and enables the middle row of large alphabet types to move to an extentjcorresponding to the "ratio of its length of arms, while the keylever 19 is'pivoted at 21 and allows the bottom row oftypes to move to an extent corresponding to the much longer rear arm of the lever; the stroke of these key-levers is advantageously limited by means of adjustable stops 22 shown in Figs. 1 and 2. It

will be seen from these figures that the rear.

type-carrier frame to the ,appropriate position to bring the middle and lower rows of type into place. The type-carrier frame extends substantially the whole width of the machine as shown in Fig. 1, and the bars 17 which serve as guides for the type-carrier frame are arranged at each side of the machine. Fig. 2 illustrates the type-carrier in its lowermost position. Upon depression of the lever 18, the frame 14 will be elevated about one-third of its height, while on depression of the lever 19 it will be elevated to its uppermostposition.

spring 26 which tends to retainthe type in the position indicated. 'hen a type rod 25 is struck by the hammer, the corresponding type is pushed out from the rear of the car rier guiding frame against the act-ion of the spring'26, recesses 27 (Fig. 6) being provided on the flange portions of the rails 1 1 and bars 15 for the free passage of the type plate 24 so that the rearwardly projected type by means of an ink strip or band 28 (Fig. 1) passing at the back of the carrier guiding frame, effects the impression upon the-paper of the aper carriage. In order that the types shall not rock about their rod, each of the type plates 24 is provided with .a guide pin 29 which is parallel to the rod 25 and insures its rectilinear movement in the type-carrier. The types can only be projected backwards from the carrier-frame in the position in which they are opposite the striking hammer and this through the medium of the recesses 27, while at other points of the carrier guiding frame they are prevented by their plates 24 from moving over the flange parts of the rails 14 and over the bars 15. The type-carrier is advantageously mounted on rollers in the guide frame to insure its easier movement.

The .type striking device consists of a hammer 3.1 (Fig. 2) pivotally mounted at the point. 30 and an electromagnet 32 arranged beneath the frame-plate S, the armature 33 of the said magnet being connected with the hammer 31. When the electromagnet 32 is energized it attracts the armature 33 and The operation of the type-carrier in order to bring it to the operative position corres ondmg to the particular key actuated is e ected by means of an electromagnet i frame-plate 8 upon a round rod 35 (Figs. 1,

guide-bars 41 and 42' and carries a contact 2, 7 and 8) uponlwhich it can be longitudinally moved, the said rack being supported at t e rear by a guide roller 60 and having engaging with it a toothed sector 37. The rack 36 is'detach'ably coupled at each of its ends by means of a finger- 38 with the stirrup 39.0f a slide 40 which" is movable upon two ring 43. Bydisplacing the rack. 36 the s -s 'des 40 are'carried with it along their guidebars' in order by means of their contact spring 43 to make a secure contact with the type-carrier retaining pin 9 which is'pressed backwards by the operation of a keylever.

The rack 36 also carries at its ends two keep-- ing arms 44 which hold the type-carrier between them and carry it with them as soon as the rack is displaced. pass through the front open part of the typecarrier guiding frame so that the heig ta(ljustment,of the said frame for the purpose of changing the row of types in use can be effected without hindrance on the part of the arms 44. On the other hand the rack 36 together with the arms 44 can be rocked forwardly in the direction of the arrow 2 (Fig. 7) so as to be withdrawn from the stirrups 39 of the slides 40 so that the type-carrier guiding frame together with the .typecarrier can be removed from the pins 17 without difficulty, for example for the exchange of a type, thecleaning of the types or for the examination thereof. 1

The toothed sector 37 which engages with the rack 36 is mounted 'upon an upright shaft 45 (Figs. 1, 2, 3 and 13) which carriesat its lower part a circular disk 46 with two radial notches 47. By means of these notches the rotation of the shaft 45 to .the left or to the right'can be effected by forwardly moving the one or the other of two pins 48 respectively on two shafts 49 in order 1 to bring the said pin into the notch opposite sponds, through the medium of the toothed to it and effect the rotation of the disk 46. The rotation of the shaft 45 to the left corresector 37 and the rack 36, to a displacement of the type-carrierjto the left and this rotation is effected in a manner hereinafter described by the depression of any one of the left-hand group, while the rotation of the said shaft 45 to the right and the corresponding displacement of the type-carrier is the result of the operation of a key of the right hand group. As the means employed for this purpose are the same for both groups it will suffice in the following description to describe the means appertaining to the lefthand group only. The shaft 49 in connection with this group is connected by means of a short arni50 and a link 51 with a lever 53 pivoted at 52 so that it can move in a hori- These arms 44 zontalplane, the said lever 53 being connected by means of an articulation 54 with a swinging lever 57 carrying the armatures of two electromagnets 55 and 56. One of these electro-ma'gnets, namely that designated 55, serves when energized to swing the shaft 49 outwards by means of the-members 53 and '51 in such a manner that its pin 48 is thrown forwards into the corresponding notch 47 of the disk 46 in order to effect by a powerful blow the rotation of the shaft 45 to the leftand so to slide the type-carrier also to the left. When {the excitation of the electromagnet 55 is interrupted the other electromagnet 56 comes into operation and returns the shaft 49 together with the parts in connection therewith into its position of rest in which it is retained by means of a flat spring 58 engaging its under part (Figs. 3 and 9).

The type-carrier and the actuating rack 36 are retained in their initial position or position of rest at the middle of a stroke (Fig. 1)

in order that they may be moved to the left or to the right by means of the toothed sector 37according as to whether a key of the lefthand or of the right-hand'group is struck.

It will be obvious that this initial position or position of rest of the type-carrier must be exactly determined in order that it shall not,

'bv reason of its momentum, move beyond its middle position to either side, in which event, on the next key being operated, an incorrect type adjustment would result. To this end the shaft 45 carr ing' the toothed sector 37 is provided at its ower part with a transverse rod 61 (Fig. 13) which is provided on each side of the shaft with a flat spring 62 and cooperates withtwo vertical spring-operated locking pins 63 in such a manner that in their raised or uppermost position the springs 62 are in contact with the locking pins 63 and so prevent theshaft 45 from turning in either direction. The raising of each of the pins 63 is effected by means of a forked lever 65, loosely mounted upon the pin 64, the said forked lever 65 being provided upon its under-side with an inclined surface 66 (Figs. 2 and 12) and being lifted by a pin 67 projecting laterally from the link 51 and which, when the link is moved backwards to its rearmost position, slides on the said surface 66. This backward movement of the link 51 is effected, asalready described, by the electromagnet 56 which, when energized, displaces the armature lever 57 in such a manner that the link 51 is-withdrawn into its rearmost extreme position.

The paper carriage controlling mechanism does not possess any essential novel features. The paper carriage 68 (Fig. 1) which is immediately behind ink bands 28 and is subnet 70 which, when energized, releases a pawlmature (Fig. 2) and of 'a pin 74 on this latter pawl in order to release the carriage until it is again. locked by the'pawltooth 75 and on the interruption of the excitation of the electromagnet 70 toenable the pawl 72 to a ain drop into the next space of t e toothed w eel 731" This mode of controlling the paper carriage is known.

In front of the electromagnet armature 69 there terminates a rod 76 (Figs. 1 and 2) which extends from the key-board and is longitudinally movable and subject to the action of a spring. This rod 76 can be pushed backwards through the medium of a special key 77 in'order to' mechanically displace the armature '69 and to enable the paper carriage to be controlled as desired without theemployment of the electric current.

The paper upon which the characters are to be impressed runs in the known manner between controllable rollers and, in the construction described, permits the writing to be immediately visible.

The electric contact devices form one of the essential features of the invention. As in the case of the other mechanisms I will here only describe the mechanism in connection with the left-hand group of keys.

In the first place mention must be made of a main contact 80 arranged upon, and insulated from, the machine frameand the mov' able contact member of which is in theform of a rotatable cam 81 (Fig; 12) and is connected by means of the arm 82 and the link 83 with an arm 84 (Figs. 12 and 13) which is mounted upon,- and insulated from, the corresponding shaft 49 so that when the latter is rotated by the operation of a key the current which was cut oil is allowed to enter the machine.

In the second place there is provideda contact wheel 85 pivotally mounted at the point 86 and having three contact arms 87 88 and 8 9-(Fig. 11), the said wheel being adapted to be turned by means of an arm 91 which engages with a fork 90 of the wheel and is mounted upon the corresponding rocking shaft 5 actuated by the keylevers. I If, therefore, this rocking shaft be turned by the depression of a key, the contact wheel 85 is si multaneously' turned. The three contact arms of the latter cooperate frlctionally wlth three corresponding contact sprmgs' 92, 93

' and 94 and control thereby the current supply for the type-carrier driving electromagnet 55, the paper carriage controlling electromagnet and the type-carrier return electromagnet 56 as will be more particularly referred to in the description of the operation of the machine.

94 are carriedby a common support 95- which is mounted upon, and nsulated from,

tact wheel 85 rests upon the contact spring rent is switched on.

' locking pin 9 ispushed backwards. scribed rotation of the shaft 49 results m The contact wheel- S5 and the three contact springs 92, 93 and corresponding arm 88 of the contact Wheel this position is shown in Fig. 13. The return of the contact wheel 85 after its rotation is effected by the action of a spring 97 (Fig. 13) which engages the arm 91 with the interposition of an insulator.

To describe the operation of the machine reference is made to the diagram (Fig. 14) in connect-ion with which it is to be distinctly understood that for the purpose of clearness 5 several parts are not shown, while other parts are assumed to be differently constructed from the parts shown in the machine illustrated in Figs. 1 to 13. For similar parts, however, the same numerals of reference are employed. It isagain only the left-hand side of the machine which is taken into consideration.

Normally the contact arm 87 of the con- 92, the main contact 80 being however broken. No current therefore flows to the machine. The type-carrier is secured in its initial or middle position by the locking pins 63 which are raised and lie in front of the transverse bar 61 of the shaft 45 which actuates the type-carrier. If now any one of the key-levers 1 of the left-hand group be depressed the following operations take place. Firstly, the rocking shaft 5 turns in the direction of the arrow to (Fig. 9) and by means of'a finger 98 mounted upon it'and of a bell crank lever 99 which engages a short arm 100 on the shaft 49, the said shaft 49 is turned in the direction of the arrow 22 (Figs. 2, 9, 12,13 and 14), whereby the main contact 80 (Fig.

14) is closed by the contact cam 81 and our- The contact Wheel 85 is then, through the medium of the arm 91 of the'rocking shaft 5, rotated in the direction of the arrows (Figs. 13 and 14) in order to effeet the followin contact makings and breakin 's. Finally through the medium of thebell-crank lever 7 connected to the actuated key-lever the corresponding type-carrier The defurther movements. The lever 53 is through the medium of the link 51 (Figs. 3 and 13) so turned that the armature lever "57 which normally lies against the electro-magnet 56 (position I of Fig. 14) is moved somewhat towards the electromagnet 55 (position 11 of Fig. 14). Then, by the dis lacement of the link 51, its pin 67 will sli e from the cam '-v sea-74a surface 66 of the forked lever 65 (Fig. .2) in order to permit of the downward movemen ofthe left-hand locking pin 63 and so releasingthe type-carrier drive for displacing the said carrier tothe left. Finally the rotation "of the shaft-49 withdraws the finger 96 from the contact spring 93 so that the latter can 96) are broken.

assumeits position of contact (in Fig. 14 this finger is merely shown in connection with the contact wheel 85). The rotation of the contact wheel 85 in the direction of the-arrow 8 makes contact between the arm 89 and the springig i, While the contacts on the arms 87 and 88 (for the latter arm notwithstanding the release of the spring 93 from the finger The result is that a current flows from the ositive pole through the wire 1'01, vover the c osed contact 80 through the connection 102, the contact 89, 9 1, electromagnet and'through the wire 103 back to the ne ative pole in connection with the machine rame so that the electro-magnet 55 is now energized in order to powerfully pull the armature lever 57 osition III shown in Fig. 14) and; through t 1e medium of the link 5l and whilestill retaining the closed contact at 80, to turn the shaft 49 in the direction.

aboye referred-to to such an extent that its bent pin 48snaps into the corresponding notch '47 of the disk 46 and through the medium of the shaft 45 and the. toothed gear 36,

' contact is made with the contact spring .43 of the'left -hand slide 40 of the type-carrier (Fig. 8), whereby a circuit is closed by a wire 104, the ty e actuating electromagnet 32, the rails 11,t e pin 9, and the type-carrier 13 back to the negative pole connected to the machine frame so that the electromagnet is energized and the hammer 31 impelled against the rod'25 of the type set up in order to obtain-an: impression. If 110w the kevleverwhich has been operated is released, the

contact wheel :85 is turnedback by means of thespring97 (Fig. 13). The contact 89, 94;

v is then broken sothat the electromagnet 55 is cut out of the circuit. I The contacts 87. 92

' and 88,.93..are then closed by the contact Wheel. The closure of the first contact 87,

QQeii'ectsthe switching in of the electromag net fiti in order to attract the armature lever 157.; \Vhile t-he latter moves from the position .III into'. the position II (Fig. 14). the shaft .49 is turned back by the link 51 in such manner that the type carrier is through the medium of; the pin t8, the: disk .46, the shaft45 thetoothed gear 37, 36 returned withdrawn into its rearmost to its initial position.- The contactSO still I however remains closedf. Simultaneously,

the contact 88. 93 by mean s ofilie spring 93 being in'its contact positioiicloses the cir cuit lOL- S9, 102 over the paper carriage operating electro-ina-gnet 70, and W lIBlOS, in

responding circuit to permit this to be carrie out. 7

The continued movement of the armature lever. 57 under the action of the electroma net 56 brings it finally from the position I into the initial position I and during this portion of the movement the complete ,return to the initial positionof the parts of the machine takes place. The link 51 is then osition and the shaft 49 com letely ret-urnec so that the pin 48 completel i' leaves the notch 47 in the disk 46 and the spring 93 by means of the finger 96 is forced out of its contactposition and finally the main contact-'SO-is broken and current is cut off (Fig. 13). more, on the complete withdra-w alof the link 51, the pint)? thereof slides on the cam surface 66 of the forked lever 65 (Fig. 2), in order to raise the latter and with it the look ing pin 63 and thereby, by'means of the transverse rod 61, lock the shaft 45 and the type-carrier driving gear until the next key is struck. In this manner all theparts have re-assumed the initial position shown in full lines in the drawing. When another key is struck the above described operations are repeated, that is to say, shortly described, the closure of the main contact 80, the excitation'of the electromagnet- 55, the. displacement of the type-carrier, the excitation of the type-impressing electromagnet 32, the interruption of the excitation of the electromagnet 55, the return of the type-carrier by means of the electromagnet'56 and the interruption of the excitation of the type impressing electromagnet 32, the putting in circuit of the pi er ca-1 'riage operating electroinagnet T0, the locking of the type-carrier in its initial position by means of the locking pins 63 and finally the breaking of the main contact 80.

It will be obvious that some ofthese operations take place simultaneously and that some follow one another quickly so that the Furthercombination with a the same support makes it more easy and convenient to repair and exchange individual contact arts.

same movable contact Wheel connected to' the said rocking shaft and adapted to control three contacts in such a manner that on striking and releasing one or the other of the key-levers the said contact Wheel is displaced so as to directly control afirst contact for the said type carrier adjusting device, a second contact for the said paper-carriage controlling device and a third contact for v the type-carrier return device, substantially as described.

2. In an electric typewriting machine, the combination with a roup of key levers, a common rocking shaIt arranged to be operated by the key-levers, a'movable typecarrier, an electromagnetic adjusting device for this latter, an electromagnetic paper carriage controlling device, an electromagneticdevice for thereturn of the t e-carrier into its initial position and a 100 ng device for the type-carrier in the said position, of one and the same movable contact wheel connected to'the said rocking shaft and adapted to control three contacts in such a manner that on striking and releasing one or other of the key-levers the said contact wheelis displaced so as to directly control a first contact for the said type-carrier adjusting device, a second contact for thesaid paper carriage controlling device and a third contact for the type-carrier return and locking devices, substantially as described. I

3. In an electric typewriting machine, the combination with a group of key levers, a common rocking shaft arranged to be operated by the key-levers, a movable typecarrier, an electromagneticeadjusting device for this latter, an-electromagnetic paper carriage controlling device, an electromagnetic device forthe return of the type-carrier into its initial position, a locking device for the type-carrier in said position and a current cut off device, of one and the same movable contactwheel connected to the said rocking shaft and adapted to control three contacts in such a manner that on striking and releasing one or other of the key levers the said contact wheelie displaced so as to directly control a first contact for the said type-carrier adjustingdevice, a second conta'ct for the said paper carriage controlling device and a third contactfor the type-carrier return and aperlocking devices, and also for the current cut off .device, substantially as described.

4.- In an electric typewriting machine, the

combination with a group'of key-levers, a.

common rocking shaft arranged to beoperated by thevkey-levers, a-movable typecarrier, an electromagnetic adjusting device for this'latter, an electromagnetic paper carriage controlling device, an electromagnetic the said rocking shaft and having three arms adapted to frictionally cooperate Withthiee contact springs connected in electric circuit with, the said electromagnetic devices and a secondary shaft arranged dependently .upon

the said rocking shaft and adapted to control the said main contact device 1n such.a manner that when a key-lever is struck, the said secondary shaft is turned somewhat so as to efi'ecttheclosure of the main contact device and the complete closing of the circuit through the said electromagnetic devices, substantially as described.

5. In an electric typewriting machine, the combination with" a group of key-levers, a common rocking shaft arranged to be operated by the key-levers, a'movable ty e-carrier, an adjusting electroma net for t is lat. ter, a paper carnage contro ing electromage net, a type-carrier return electromagnet and a locking device for the type-carrier in its initial position, of one and thesame movable contact wheel connected to the said rocking shaft and adapted to control three contactsfor the circuits of the said electromagnets, an armature lever common to the said" typecarrier adjusting and return'electromagnets, and a shifting member connected to the said armature lever and adapted'to-control the aforesaid locking device in'such a manner that on the attraction of-the said armature stantially as described.

6; In an electric typewritintg commonrocking shaft arranged to be operated by tbe-keylevers, a movable tyi e-carmachine,'the combinatlonwith a group 0 key-levers, a-

rier, an adjusting electroma net for t is latter, a paper carnage controlling electromagnet and a ty -carrier return electromagnet, of one and-t e same movable contact wheel connected to the said rocking shaft and adapted to control three contacts for circuiting the said electromagnets, a-type-carrier drivin shaft arranged so as to be actuated from t e said type-carrier adjusting and return electromagnets, a transVers IrQdIcarried.

by the said shaft, a locking' pin -to:cooperate With'the said rod andlmeans' depending upon connected tor/the said rocking shaft and adagted to control three contacts for circuiting t shaft carrying a cam wit scenes the said ty e-carrier return electromagnet for shifting t 1e said locking pin in such a manher that when the type-carrier is returned into its initial positionthe said means are actuated to engage the pin with the said shaft crossing rod so as to prevent the shaft from being turned out of its initial position, substantially as described.

-7. In an electric typ'ewriting machine, the

combination with a group or key-levers, a common rocking shaft arranged to be oper ated by the key-levers, a movable type-carrier, an adjusting electromagnet for this latter, a paper carriage controllinqelectromagnet and a type-carrier return e ectromagnet of one and the same movable contact wheel 1e said electromagnets, a ty e-c-arrier driving anopen notch, and a secondary shaft providedwith a strik mg pin opposite to the said cam, normally disengaged therefrom and arranged so asto be actuated from the type-carrier adjusting and return electroma nets in such a manner that by-the, action OI these electromagnets the said striking pin may be quickly struck into.and withdrawn from the notch of the said cam'with the object of turning the said.

type-carrier driving shaft forwards and'back- 1 v Wards, substan'tiallyas described; I

g 8. In an electric typewriting-machine, the combination with a group of key-levers, a

common device for controlling circuit con nections under the' 'a'ction or the said keylevers and a shdable type-carrier, an ad ustmggear for this latter, having a movable rack, a guide for this rack, coupling arms on 9. In an electric typewriting machine, the

combination with a group of key-levers, a

common device for controlling circuit connections under the action of the said keylevers, a slid'able type-carrier, a group of type-carrier stopping "pins arranged to be operated by the ey-levers, an electromag? netic type impressing device and a type-car rier driving gear, of a contact spring device in connection with the type-carrier adapted to frictionally engage with that of the said sto ping pins which has been operated, in ordgr to make an intimate electric circuiting contact over the said electromagnetic type impressing device,'substantially as described: 1'0.- In an electric typewriting machine, the combination of a grou of key-levers, a common device for contro 'ng circuit connections under the action of the saidkeylevers, a slidable type-carrier, a driving gear for the said type-carrier and a striking hammer to effect the type impressions, the said type-carrier having spring actuated types provided with a supporting rod to be struck y the said hammer and with a guiding pin to prevent them from rocking, substantially as described. j

In witness whereof I have hereunto signed my name in the presence of two subscribing Witnesses.

JOSEPH LEMBLE. Witnesses:

- Gno. Grrroan,

ARNAUD BRAUN.

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