US1137417A - Type-writer key-lock. - Google Patents

Description

A. F. NATHAN, JR.

TYPE WRITER KEY LOCK.

APPLICATION men SEPT-1.1905.

4 SHEETS-SHEET 1.

WITNESSES: INVE/VTUR tmtw 6 4/4! Patented @1227, 1915 WITNESSES.

. 1 imam A. F. NATHAN, In.

vTYPE WRITER KEY LOCK.

APPLICATION FILED s'EPT. 7. I905.

Patented Apr. 27, 1915.

4 SHEETS-SHEET 2.

IIVVEIVTOR A. F. NATHAN, JR.

TYPE WRITER KEY LOCK.

APPUCATION man SEPT. 1. 1905.

Patented Apr. 27 1915 4 SHEETS-SHEET 3.

INVENTOR A. F. NATHAN, JR.

TYPE WRITER KEY LOCK.

APPLICATION men SEPT. I, 1905.

1,137,417; Patented A1 1.2?,1915.

4 SHEETS-SHEET 44 WITNESSES l/VVENTOR ALBERT F. NATHAN, JR, OF NEW YORK, N. Y.

TYPE-WRITER KEY-LOCK anemia.

Specification of Letters Patent.

Patented Apr. 2?, 1915.

Application filed September 7, 1905. Serial No. 277,297.

To all whom it may concern: I

Be it known that I, ALBERT F. NATHAN, Jr., a citizen of the United States, residing in the city of New York, in the county of New York and State of New York, have invented a certain new and useful Typellriter Key Lock, of which the following is a specification.

This invention relates broadly to mechanism for automatically locking some or all of the keys of a typewriter, but, in its more intense aspect it particularly concerns a line- 'lock in which a finger-key is instrumental in directly enabling or efl'ectuating a move ment of the line-lock into locking or operatire position. Since, however, certain advantages characteristic of this invention prominently appear when it 'is resorted to for the purpose of enabling a dividing-key to lock the remaining keys against depression at any time after the carriage has trav- 'eled beyond a pro-determined adjustable station of its travel, it will be conducive to clearness to disclose the invention through certain possible concrete embodiments in such relation.

I'lcretofore, the carriage of a typewriter has in and of itself directly thrown the linelocking mechanism into locking or operative position, and while such carriage has been in turn controlled in its travel by a fingerkc-y such key has never heretofore been in any way instrumental in causing or enabling thc'line locking mechanism to move into looking or operative position, save only by enabling the carriage to travel until such carriage directly throws the line-lock, '1'. c. through the medium of the carriage. This is to say, a finger-key has never heretofore been arranged to directly actuate the line locking mechanism into locking or operative position, but on the contrary has always merely served to release the carriage, to enable the latter directly and in and of itself to perform such function, although t is to be understood that devices for unlocking-line locking mechanism as a direct consequence of a key actuation have been contemplated. The purpose of such unlocking devices, as will be understood by those familiar with the art, is entirely different from that of my rlevice and the problem to be solved and the reasons involved are radically different in each case. I

Now by my invention, I seek broadly to produce a mechanism in which a finger-key cooperates with the carriage as well as with the locking device itself-for the purpose of moving the linelocking mechanism into looking or operative position, as distinguished from the heretofore constructed line locks, in which the carriage merely by trav of first partway operating or getting into operative relation with the line-lock, and hen use al finger-key for completing the movement (if the line-lock into operative p0- sit-ion.

My invention furthermore has in view among other objects, a mechanism for permitting the operator to finish a word or syllable thereof without being interrupted by a premature locking of the keys. In carrying out this aspect of my invention, I also make provision whereby the line-lock'mechanism is operated partly by the carriage and partly by a word or syllable dividing key, as for example, a socalled space-key.

In this utilization of my invention, the carriage and dividing key cooperate to lock the printing keys and the like against action. Unassisted by ore another, neither alone can do this, and even together are in effective to lock the keys until the completion. of the line of writing, at which point the carriage throws a part into such position that the dividing key may act thereon to intcrposc an obstruction into the path of the printing keys to be locked.

Other objects and advantages will be in part obvious from the annexed drawings,

pointed out in the following de-- and in part scripti on.

In general, this invention seeks to pro-,

' vide a means of the nature disclosed which from a mechanical standpoint will in practical usage possess a high degree of efliciency, and which, structurally considered, will be of the greatest possible simplicity, being composed of but few parts all capable of being manufactured at a minimum of cost and so co-related as to be capable of being conveniently and compactly assembled and arranged in typewriters of a conventional character.

y The invention accordingly consists of the features of construction, combinations of elements, and arrangements of parts, WhlCh will be exemplified by the embodimentshereinafter set forth and defined as to scope and application by the prior art after the manncr'indicated in the following claims.

' In order that this invention may be the more clearly understood by others skilled in its relating arts, drawings illustrating this disclosure and accordingly comprehendf ed within the intended scope of the claims.

In the appended drawin 5, corresponding parts are similarly referre to by like characters of reference throughout all'the views of which:

Figure 1 is a perspective view generally indicative of a conventional form of a typewriter and disclosing one of the many pos-- sible modes of applying my invention thereto, and more particularly illustrating an embodiment thereof wherein a depression of a finger-key, such as the shown dividingkey, during a predetermined range of the travel of the carriage, releases and enables ansener ized universal locking bar to spring into lock view of a slightl difierent embodiment of my invention w erein a depression of a spacing or dividing key moves a member connected therewith into operative relation an interponent which has been previously moved by the carriage, so that a subsequent movement of the member connected with the spacing or dividing key will move the interponent into a difi'erent direction, with the result that the line-lock is brought into effective locking position. Figs. 3, 4, & 5 show successive steps in the operation of the key locking means more fully disclosed by Fig.

1. Fig. '6 is a side elevation showing elements of my invention including an alarm mechanism adapted to sound the instant the lock is moved into effective relation with the kevs. Fig. 7 is a detailed perspective of a coiiventional model of a typewriter equipped with my invention and showing its relation with various features commonly employed in typewriters.

To more clearly appreciate the peculiar utility of the partlcular embodi ents of this invention which have been trated, it may at the outset be pointed out that, as heretofore constructed, line locking devices have always operated at a predetermined fixed point in the line of writing. For example, the instant the carriage reaches a certain definite station near the end 'of the line. say space 70, the line lock becomes operative to lock the keys against ing position. Fig. 2 1s a perspective erein illus' further depression, regardless of whether the operator is in the midst of writing a word. ,It has heretofore been necessary to meet this exigency by providing a key for releasing the lock, so that the word may be completed by the operator. As will be readily appreciated, it isacause of great anno ance and confusion to the operator to interrupted in the middle of. a word, and this goes far toward offsetting the advantages of a line lock.

.By means of the specific embodiments .ierein illustrated, itnow becomes possible to overcome this, difficulty and permit the operator to finish a word beforea locking of the keys takes place. This is done by utilizing what: may be termed a sub-conscious act on the part of experienced typewritists, which consists in depressing some key adapted to space or divide words or syllables from-one another. Thus,at the end of every word the operator will depress adividing key which does not print, but

leaves a space or blank. Such a key maybe termed a space key. So also, the case of compound words,-the key prmtmg a hyphen will be employed in lieu of other keys,

and the same is equally true of split words.

Now, in carrying out this invention, the mechanism is such that the dividin key as it may be termed can be freely use during the greater length of the writing of the line without bringing about alocking of the keys, but just as soon as the carriage has passed beyond a given point, and is traveling in what may be termed the effective region of locking, the dividing key will upon being depressed, instantly move or enable the line locking mechanism to move into operative position so as to lock the keys against subsequent writing.

Continuing now by way of a more detailed description of the several disclosed embodiments of my invention designed to operate in the above stated manner, A indicates the paper carriage or platen ofa type writer which is moved for letter spacing in the usual manner and whig wreceives the impact of the printing mechanism.

In the form denoted by Figs. 1, 3, 4, and

5, a cam or tappet B is mounted on the carriage and, as shown, is provided with a sloping under face adapted to enable the coact ing arm of the bell-crank D to freely ride up the same, thus swingingthe bell-crank D into the 'osition denoted in full lines; the normal position being indicated by the dotted lines as shown at D.

The free or swinging arm of the belllines at G.

it its forward end, the link Eextending ,from the carriage tappet is pivotally attached to the arm G,'which is rocked to andfro as the bell-crank D rides up and down the tappet mounted on the-carriage. As will be presently seen, the line loci mechanism, in the illustrated embodiments of'myinvention, is entirely ineffective when the link is forward in its normal position, and the arm G has similarly been rocked forwardly into the normal position indicated by dotted On the other hand, when the link E has been moved to the rear so as to swing the arm G into the position shown by the full-lines, the line lock mechanism has become aflected that immediately upon depressing the dividing or spacing key K,

Theuniversal lockin bar H is in the form of an. arch or ball and base torsion I, which is at its ends aiiixed to the ends of the hail; the latter turning upon the plivot J mounted between side walls rising om the machine base.

The universal locking bar H when swung upwardly into locking position as indicated by the dotted lines at H directly underlies the type-bar levers L and when so positioned, the latter obviously cannot be depressed.

When the tappet B depresses the horizonta'l arm of the bell-crank D, the parts are moved to 'the' full line position shown by 1 and 4, and in so doing, the middle portion of the fiat torsion spring I has been twistedtoa vertical position, as seen by Fig. 4. In order to prevent a premature rise of the locking bar H due to the spring tension, I have provided,a latch connected with the dividing key K. Such latch is indicated more clearly at K and is preferably formed upon the space-key lever. This latch is engaged by a finger or projection H formed upon the locking bar H. Thus, it will be seen that the carriage, except for the latch -K would. at once rotate the bar H to lock the keys, but that bar is restrained by the latch K Upon depressing the space key, however, said latch released the projection H and hence the bar H springs up as a re sult of its turning on the pivot J, andoccupies a position immediately beneath the lever bar or frame H being indicated at H Figs.

.1 and 5. Thus, it will be seen that the op- L of'the type-keys, (Fig. 5) so that thelatter are locked against depression; the depressed position of the keys being indicated at L, Fig. 1, and the locking position of the erator is always able to complete a word he forei the type-keys become locked, thereby saving much annoyance and confusion and conducing to the speed of operation. It will be understood that the tappet B which may be adjustable longitudinally of the carriage after the manner usual in line-locking devices, may be set so as to operate at a point, say equal to eight letter spaces from the extreme end of the line, and it will be found in practice that the words will run from one to five letters beyond this point. The tappet B, however, may be adjusted farther away from the finish of the line, according to the preference of the operator. turn of the carriage, the bell crank D is released, and the parts return to their normal position by the action of the spring F, the long projection or finger H slipping over the latch K The above described modification of my invention discloses a construction in which the carriage puts the line-locking mechanism under a tension, and the dividing key serves "to release such tensioned locking mechanism, therebv enabling it to spring into locking position. The reader skilled in the art will no doubt have perceived at this point that an equivalent mechanism readily deducible from the foregoing disclosure may be employed in which the movement of the finger key may be utilized as a means instrumental in causing or enabling the lockin features to shift into operative 1 position ater the carriage has set them so that they may be acted upon by such key.

By way of a more complete illustration of this other equivalent modification of this invention, I have shown by Figs. 2 and 7, an

pp ication of my invention in which a movement of the dividing or space key operates directly to urge or force the line-locking mechanism into locking position. In the shown specific embodiment, such movement is the uprise of the finger-key (space key) though of course the initial depression may serve the same purpose. Thus, in the one case, the finger key releases a previously energized line-lock, while in my equivalent other modification, it pushes the line-lock into operative or effective position.

Referring now to Figs. 2 and '7 (Fig. 2 showing more clearly details of the engaging'means between the spacingfinger-key and the linc lock mechanism, and Fig. 7

Upon the rei showing more clearly the application of this locking mechanism in such relation that a depression of a finger-key, such as space key will bring it into locking position.

This modification of my invention proposesan interpnnent which is moved by the ger-key, such as a space key or dividing ky. I

In the illustrated form of my invention,

' such interponent comprises a member N together with pivoted means M of Fig. 2 and M 0fFig.7.

As will be seen, this pivoted means is here shown in the form of alever which is so mounted and arranged with reference to the interponent N, that such interponent N will be moved by the carriage at least whenever the latter approaches the end of a line. As a matter of convenience, the interponentN has been brought forward so as to terminate adjacent the forward or power receiving portion of the keys.

The advantages of this location is that it is very near the line-lock which by engaging with the forward or power receiving portion of the keys acts at the most eflective position. through a loose fitting opening in the comb O, the latter being supportedby means of pins or projections O in the side walls rising from the base, so that the comb may slide transversely beneath the levers L. It is to be noted in this connection, that this arrangement gives the interponent two independent movements at right angles to each other. That is. to say, the interponent moves backwardly and forwardly across the path.

of a member I which vibrates in correspondence with the depressions of the finger key K.

. )onsidering now the manner in which this transverse shifting of the locking device is obtained, P denotesan arm of a bell-crank pivotally mounted on pivots P, which bellcrank also has an arm P which is pivoted to the finger-key lever K; This. pivotal connection may be very conveniently attained by providing one or the other of these members with an eye through which the other passes loosely, as shown on the drawings.

The upright arm P of the bell crank is resilient or flexible in a backward or forward direction, so that the intcrponent N may be urged forwardly and cause such arm P to spring forwardly, so 'that when itis moved laterally, it will spring back at one side of the protruding portion of the interponent N. Thus when thcarm M or M is thrown forward by the cam B, the front end or tongue N of the slide or interponcnt N advances and presses or springs the arm P toward the front of the 1nachine.- As will be seen, this will not, however, cause any shifting or other movement of the locking comb 0. When subsequently the dividing or space key is depressed, a rocking movement will be imparted to the bell-crank and its arm P will be ,carried down by. the lever of such de- The interponent or slide N project-s vibrated to the right until it passes over the end of the protruding tongue N and snaps back at the right of such protrudin portion. Now when the finger is. removedom such finger key, the spring P. will operate to lift pressedfinger key, and the arm :P will be I the same and the arm P of the bell-crank will be caused to vibrate'towardthe left, but in so doing it will abut the protruding portion of the interponent N and force the same to the left to other with the comb O action of the spring B.

When the carriage is returned for writing a newline, the slide or interponent N will be withdrawn from the part of the vibrating member P actuated by the finger key, this withdrawal being accomplished 'by means of the'spring R. The moment the interponent is withdrawn suiliciently to disengage its protruding end from the member P, the locking, comb 0 will be able to spring back into normal effective position, so that the key levers L may pass freely down in the slots between the teeth O'-'. By Fig. 7, I have illustrated certain other features than those above described or alluded to as a part ofmy invention, but I do not mean to cover such'features as may be use. By this I refer to the escapement,

mechanism indicated'by 6 and operated from 'Such universal bar 7 may also bedepressed by the finger-key K through the medium of the lever arm 9. The printing type are carried-at the ends 10 of the type-bars 11 operated by means of links 12, connected with the'key levers.

\Vithin the scope of my invention, other modifications than those specifically illustrated may be resorted to without a departure therefrom, and portions of my improvements may be used without others, thus, as will be readily apparent, any of the finger keys may be connected with the mechanism forming a part of my invention.

Having thus described my invention, what I claim as new and desire ,to secure by Letters Patent of the United States-may be stated as follows: L

1. A typewriter comprising in combination, a carriage, a plurality of operatingkeys, :1 member connected with an operatioc 'well known in the tart and are in common .ing-key and adapted to be vibrated thereby, a member movable by said carriage into v the path of said vibrating member, and a devicefor locking certain of said keys and movable into operative position by said carkeys, a vibrator movable by an operatingkey, an interponent movable by said carriage into the path of said vibrator, whereby said interponent may, be laterally shifted by said vibrator, and a key-locking device movable into locking position by said interponent when the vibrator.

3. A typewriter comprising in combination, a ca riage, operatingkeys, a line-lock,

latter is shifted by said an operative connection between said carriage and said lock, and independent means extending from an operating-key tosaid lint lock adapted to enable said. key to move said line-lock into locking relation with other of said keys.

4. A typewriter comprising in combination, a carriage, operating-keys, a line-lock mechanism, a device movable by said carriage for rendering effective and ineltective said line-lock mechanism to the action of an 7 operating-key, and means controlled by an operating-key for cooperating with said earriage-rnoved means for setting said mechanism into locking relation.

5. A typewriter comprising in combination, a carriage, operating-keys, a line-lock, normally ineffective line-lock operating means connected with an operating-key, a device operated by the carriage for rendering said operating-means eii'ective after a given station has been. passed by the carriage, whereby other operatingdreys may be locked after the next stroke on said first mentioned operating-key.

6. A typewriting machine comprising in combination, a carriage, a plurality of keylevers, a line-lockingmechanism, operative connections between the carriage and the locking-mechanism, and means directly operable by one of the key-levers to engage the operative connections and move the lockingmechanism into operative position.

7. A typewriter comprising in combination, a carriage, a plurality of key-levers for i printing characters composing a word, an

operating-key for causing said carriage to movea space but unadapted to print any of said characters, a normally-ineffective mechanism adapted to be moved into effective po- BG 'sition to lock said key-levers, and means independent of said key-levers cooperating with said operating-key to move said mechanism into efiective position when said opcrating-key is actuated.

A typewriter comprising in combination, acarriage, a plurality of key-levers for printing characters composing a word, an operating-key adapted to move said carriage a space when actuated without printing any of the aboveanentioned characters,

and means imlependent of said key-levers for automatically locking the same against printing when the carriage has passed a predetermined station upon actuating said operatingkey, and adapted to be released by depressing said operating-key.

9. A typewriter com' 'irising in combination, a carriage, a plurality of key-leyers for printing characters composing a word, an operating-key adapted when actuated to space said carriage without printingany of said characters, and means independent of said key-levers adapted when the carriage has passed a predetermined station to co- ,operate with said operatingkey to automatically lock said key-levers when said operating-key rises after being depressed, and adapted to be unlocked subsequently by depressing said operating-key.

10.,A typewriter comprising in combination, a carriage, a plurality of key-levers for printing characters composing a word, an

operating key adapted when actuated to space said carriage without prin ting any of said characters, a member located under the forward portions of said key-levers and adapted to be moved into a position preventing a depression of same, means cooperating with said operating-key and normally inellective to move said member, and av device adapted to render said means effective at a predetermined position of the carriage.

11. lion, a carriage, a line-lock member advanced by the carriage, a'second line-lock member carried by an operating-key, printing instrumentalities, and means for automatically locking the printing iustrumentalities against printing when said members are brought into contact by an actuation of said operating-key.

12. A typewriter comprising in combina tion, a carriage, printing instrumentalities, a line-lock stop carried by the carriage, means to adjusting said stop, an operating key, a line-lock part connected with said 0perating-key, and means comprising a device intervening between said stop and part as well as a locking-member, adapted and arranged for automatically locking the printing instrumentalities against printing when said stop, said last-mentioned means, and part are brought into operative relation by an actuation of said operating-key.

13. A typewriter comprising in conlbination, a carriage, a plurality of key-levers for printing characters. composing a word, an operating-key adapted when actuated to space said carriage Without printing any of A typewriter comprising in combinasaid above mentioned characters, a lockingmember located under the forward portionsof said key-levers, means coacting with said member and said carriage, and a device independent/of said key-levers and 006 erating with said operating-key to enab e'the latter to move said locking-member into locking position when the carriage has passed a predetermined station of its travel.

14. A typewriter comprising in combination, a carriage, a part on-said carriage, a

Y line-lock member adapted to be moved by said part, means for adjustingthe relation between said part and member to enable the latter to be moved when the carriage reaches any predetermined station, a plurality of -key-lever's, a device adapted to lock said key-levers and connected with said line-lock member in such manner that the latter may same, and enab e said piece to move saidmember during the-uprise of said key-lever and cause said device to move into locking position. I

15. A typewriter comprising in combina tion, a carriage, a plurality of key-levers for printing characters composing a word, an operating-key adapted when actuated to space said carriage without printing any of .the above mentioned characters, a device adapted to be moved into position to lock the key-levers, connections extending from the carriage to, said device and independently ineffective to move said device into locking position at any position of the carriage, and means intervening between said operating-key and said device adapted to cooperate with said connections after the carria e has passed a predetermined station to 'ena le said device to be moved into looking position through the 'force causing a movement of said operating-key. 16. A typewriter comprising-in combination, a carriage, printing instrumentalities, operating keys, a line-lock, a .nember cooperating with. said line-lock adapted tobe moved by the carriage in one direction into a given position, and means actuated by an operating-key adapted to move said memb r in another direction when in said position, and thereby produce a movement of said line-lock.

17. A typewriter comprising in combination, a carriage, a part carried thereby, a member adapted to be engaged and moved by said part, operating-keys, means for locking certain ot said keys and cooperating with said member, and a device directly trolled by an operating key and cooperating with said member whereby said means may be moved into locking position on an actuation of said operating-key.

18. A typewritercomprising in combination, a carriage, an operating-key, a line-- lock stop carried by the carriage, connections moved by said sto into operative positions,

and means contro ed by said key for auto matically locking the printing instrumentalities through said connections. I

19, A typewriter comprisin in combina I tion, a carriage, operatingeys, a part adapted to translate and shift in different directions, carriage-controlled means for translating said part into a predetermined position, means controlled by an operatingkey adapted to coact with said part when n such position to shift the same, and means for locking the keys adapted to be moved by said part when shifted.

20. A typewriter comprising in combination, a carriage, a line-lock stop carried thereby, operating-keys, a lever actuated by said line-lock stop, a ine-lockvadapted to be moved into lockm r position by 'said lever,

and means contro ed by an operating-ke for moving said lever to bring. said line-10c into locking position. 21. A typewriter comprising in combination, a carriage, a line-lock sto carried thereby, a plurality of key-levers or printing characters composing a word, an operattion, a carriage, operating-keys, 'a line-lock,

means intervening between said line-lock and an operating-key, and normally disconnected from one of sa'idparts, and means controlled by the movement of the carriage adapted to automatically establish connection between said disconnected parts, and thereby enable amovement of the operatingkey to be transmitted to said line-lock. 23.A typewriter comprising in combination, a carriage, operating-keys, a line-lock stop carried by the carriage we line-locking device, a lever that cotipera-tes at one end with the line-lock stop and at the other end with said linedocking device to move it in one directiomand means controlled by an operating-key for moving the locking-device v through the instrumentahty of said lever.

Y 24. A typewriter comprising in combina- I tion, a carriage, operating-keys, a line-lock operating-device movable by, said carriage,

a line-loch movable into operative position by said operatingdevice, and means con-' 'trolled by an operating-key for actuating said line-lock operatingdevice.

A typewriter comprising in combination, a carriage, operating-keys, a line lock for locking said keys, means for actuating said line-lock adaptedto be moved by the carriage, and means controlled by an operating key adapted to engage said first-mentioned means and actuate the same in such manner that the line-1ock will be moved into efl ective position.

26. A typewriter comprising in combination, a carriage, a plurality of operatinglreys, printing-mechanism connected with certain of said keys, a line-lock for impeding the movement of certain of said operating-k'eys to arrest the printing-mechanism, and means connected directly with an operating-key adapted to transmit a movement of said operating-key directly to said linelock, whereby the latter may be shifted to locking position by the force moving an operating-key. j

27. A typewriter comprising in combination, a carriage, type-keys, means for looking said type-keys cooperating directly with l the carriage, a space-key, and independent means connecting said space-key w1th said first-mentioned means to enable the same to lock the type-keys upon an actuation of said space-key.

28. A typewriter comprising in combination, a carriage, a plurality of key-levers for printing characters composing a Word, an operating-key adapted when actuated to space said carriage without printing, a lineloek, normally ineffective means for operat ing said line-lock adapted to be placed in operative position by the carriage When it occupies any one of the several successive stations beyond a predetermined point, and means for transmitting a movement of said operating key to said first-mentioned means when in operative position so as to cause the latter to lock the type-keys.

29. A typewriter comprising in combination, a carriage, type-keys, a non-printing space-key, a key-locking member normally ineffective. during prelil'ninary operations of the space-key, and means cooperating with said. carriage, said member and said spacelrey only, for shifting said member into locking position through a movement of the space-key when the carriage haspassed beyond a predetermined point ofits travel.

30. A typewriting machine comprising in combination, a carriage, type-keys, a spacekey, a normally ineffective line-lock for the type-keys, mechanism extending from said space-key to both the'carriage and the lock, and a part provided upon the. carriage, for operating said mechanism at a predetermined statiosi'lof the carriage travel, Whereby upon actuating the space-key the latter will cause said lock to move into effective position.

31. A typewriting machine comprising in combination, type-keys, a space-key, a carriage, escapement-mechanism, and a linelock mechanism independent of said escapement-mechanism, said line-lock mechanism being normally non-responsive to an actuation of said space-key, and normally incapable of being moved into locking position solely by the travel of the carriage, but adapted to be moved by the carriage when the latterreaches a predetermined point and thereby made responsive to an actuation of the space-key.

32. 'A typewriting machine comprising in combination, alphabetical and space-keys, a carriage, escapement-mechanism, a tappet adjustable in the direction of travel of the carriage, a locking member for said alphabetical-keys, and an. actuating means for said locking member independent of said escapement-mechanism and operable partlyby said tappet and by a space-key, whereby the latter may be enabled to directly operate said locking-member.

33."A typewriter comprising in combination, type key-levers, a space-key, a comb under the type key-levers for locking the same, a tappet upon the carriage, an arm movable by said tappet, a slide movable at its forward end in said comb, a bell-crank movable laterally by said slide when the latter is actuated by said tappet, and means for enabling said parts to cooperate to lock the type key-levers.

34. A typewriter comprising in combination, a carriage, typekeys, a space-key, a lock for said type-keys, and means for en-' abling a movement of the carriage to enable said space-key to force said look into effective position.

35. A typewriter comprising in combination, a carriage, type-keys, a space-key, a lock movable by said space-key, and a nor-' mally ineffective interponent between said space-key and said lock and movable by said carriage into effective position.

36. A typewriter comprising in combination, a carriage, escapementmechanism, type-keys, a space-key, and means independent of said escapement-mechanism for en abling the carriage and space key to co operatet-o lock thetype-keys, said locking means being releasable at the will of the operator to permit the writing pf additional letters.

37. A typewriter comprising in combination, a carriage, type-keys, a space-key, amember intermediate said carriage and s'paoe-key and movable by the carriage, and

,means. for enabling the space-key to CQ-r operate With said intermediate member-LE0 lock the type-keys, said locking means being releasable by a subsequent depression of 'the space key to permit the writing of additional letters at the end of the line so long as the space key is held down. v

38. The combination in'a typewriting Ina-i chine of a traveling carriage, the-printing instrumentalities, mea'ns for rendering the printing instrumentalities inoperative, the

operation of which is determined by the position of the carriage, and a finger lever for actuating said means.

39.. In a typewriting machine, in combination with the carriage of printing instrumentalities, looting means therefor, a p1u-' mlity of 1evers,-onenf which is adapted .to netuate locking means, and means carried by the carriage which cooperates with the looking means at a predetermined position.

of the carriage.

,40. In a typewritin'g machine, the combination of a carriage, line-locking mecha- 'nism, line-lock operating means, and means adapted at'a predetermined point in the travel of the carriage to interpose an operative connection bet-ween the line-locking 5 -mechanism and its operating means.

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