US1067392A - Type-writing machine. - Google Patents

Description

Patented July 15, 1913.

3 BHEETSSHEET l.

J. H. BARR. TYPE WRITING MACHINE. APPLICATION FILED D30. 30, 1910.

ZZZ/$21212 i/M-ZL/ FIIS ATTORNEY WITNESSES- 2. v4 fi'l J. H. BARR. TYPE WRITING MACHINE.

APPLICATION FILED DEG. 30,1910. 1,0 7,392, Patented July 15, 1913.

s, INVENTEIR: WITNESSES:

14:5 ATTORNEY J. H. BARR. TYPE WRITING MACHINE.

APPLICATION FILED DEC. 30, 1910.

SHEET 3.

Patented July I; E '1 S 1 fl I WITNESSES.-

.print rapita s ii. BARR. OF SYRACUSE, NEW YORK, ASSIGNOE, TO THE SMITH PREMIER.- T..PE\URITER COMPANY, OF SYRACUSE, NEW YORK, A GORPORATION 0F NEW YORK.

ETED STATES PATENT OFFICE.

TYPE-WRITING MACHINE.

Specification of Letters; Patent.

1 67,392. Patented July 15, 19] 3. Application filed December 30v 1910. Serial No. 600,115.

mechanism novel in principle and in Con- Strmrlion.

I preferably employ a lull set of type loam. one for each ehaaaetrr to he printe l. The alphain-t lceya are h (,Ullilfi lfll to two typo llfllb' and the (.zr; shift. lHQClltUllalll lie it known that I, JOHN H. BARR. a citizen of the United States. and resident of Syrai' use. in the county f Onondaga and State of New York, have inrantmi rei'tain new and useful Improvements. in 'lype- \Vriting MhChillGs, of which the following tlilvtttlllltz; uhirii ot said two type bars shall is a sperifieation. T he operated. liach of the remaining ke va My invention relates to typewriting' mais LEHIllJOLtWl to only one type bar. chines and more particularly to an im- To the above and other enrls: which will proved type and key action for surh ma appear hereinafter, my invention conaists in chines. lzertain features of oonhtruction and eonihi- Typewriters as heretofore constructed nations and arrangements of parts all 01 have been of two general classes commonl) whirh will be fully Set forth. herein aml par known as full keyboard and shift machines. tivularl pointed out in the claims. In the full keyboard machine there is a My invention a: to many of itb features separate key for each character to he printis applicable or adaptable to typewriting ed, whereas in the shift machines each key maehines generally. For the purpose of prints two or more characters: determined i illuuration it is h re him applied to a by case shift mechanism. mat-him whieh n man re a is identical It is one of the objects of the present in g with the Smith Premier ho. i0 typewriter. vention to provide a machine having the and fitlltl machine may he ltlUZillCill with that. advantages of both of these clmsesof typel typewriter in all rwspwtaw event; as hereinwriters without the disadvantages of either. I after explained.

I provide a machine, in which those keys 3 In the aeeompanying drawings. Figure l 0 all who 12.2. it may cone-em: l l l that print the letters of the alphabet each is a front to rear VQIUC Il sectional view of control two types. one for the small letter i a typewriter having in; invention unhotl and the other for the capital, and preferal'ily iecl therein. Figs. and S are tragmentarv allzthe other keys print only one character views of some of the same part; but with a e ch, By thi arrangement the keyboard is I printing key in depresaed position: Ill Fig. i made much smaller than is necessary in the the one shift moehanini is in norm ll poufull keyhoartl marhine and i 4 i each key represents onl one letter or other position to print a rapital letter. I 1;: l 1 character, than avoiding all ((JIlfUSlOH as to a top plan view of the k jfl fillltl- 5W1: r

when to operate the shift key. rhine the shift ke is preferably never used. i except to write 1? ital letters. lvloreover. l have provided a awe shift nieehanimi of such a sort that when it is operated to cause 1 two i ie }"l: It' l. earl: having :1 front and the alphabet key to print capitals it has H1:- hark Said L-i4le plates are eonne tefieeton the remaining keys. For rvtanzphu M the rear l j'll' d the key to print a ar-ini olon siivva c prints flf ph a SCH'llCOlUiI whether the shift key is op-:.-r plate 4. top piatr ated or not. l. provide a .Slllft loek so that the case shift mechanism can he lorke'l in its operated putati-ir. niani iii so h l hi my ma 1 i. lion' hil N38 wtainlanm i 5 wliir-h support the stitionat r'irrni 'e T :2

nning! in H U limli' and the i-enriiiir left uinlrlzirhmi'. printi. I ters as when the more shill. me Oij iteo' lfhen the shift-look key Prusaetl. therefore. *he machine ran he run without any further thought or peration of 5' r x the case shtt mechanism. y u h i remit-nit rot against. a pad 153. My invention also includes ease-shit; t: oi the r m: ha, oivoted t e he l Foch of Mn. r at it lion varrl (h'ttl earr s'. 1.90 ll and Saul ppoi'l a top l t) O thereof a link 16 that comes up behind the and verb of said links is pivoted to one of a writ of radially disposed Htll-lUYGi'F 1T nhi 'h sub-lei are are pivoted in a segment 18 having a pivot wire it Each of the sublevers 17 is controlled by a spring 20.

'l hose type burs whi'h are connected sin- 3) to their rv'l'e-w'r l cs. haw: their ubward therefo -in .n'fl pivoted at their for- \Yitifil ends to iiii rank key levers which hey lmers a e pivot-e l on flUrzS wires 23 SCiPpOliQd in it frame 2t. The bvlhcranks 22 an. operated ry the stems. 25 of printing l t Yr- L said ruins passing through suitable holes in a ke 'l oanl plate 27 and provided ,wilh siop pad :33. The construction is such that when one of the keys 26 depressed 'llS link 21 draws the sub-liner 17 toward the front. of the machine and operates the type bar. I

The arrangement. of the type bars and the tlt'ftlltltlhg mechanism of said type bars as far as has been described, are all substantially like the construction shown, described and claimed in -my prior application No. 262,395, filed May 26, 1905. It will be understood that a as shown in the present instance and preferably, the keys 26 print other characters than the letters of the alphabet. The alphabet keys 30 are mounted on stems 25 and connect with bell-cranks 22 in the same manner as the keys 26. Each of said hellmranks however has pivoted thereto a link 31 shorter than the links 21 and each at its rear end is connected to the lower end of a lever 32 pivoted on a cross rod 33 which extends across the machine back of the keyboard. In the present instance where it is only the alphabet keys that are connected to two type bars each, there are twenty-six of these levers 32 distributed at suitable intervals along the .rod 33. Said rod is partly stipporte'd near its middle by a bracket 34 which extends down from the key-board plate 27. Each of the .levers 32 has pivotol thereto at 35, the middie of a two-armed lever 36 which twoarmed lever normally stands in an approximately up and down position,, shown in Fig. 1. Thelower end of each of the levers 36 has pivoted thereto a. link 37 which at its rear end is connected with one ofthe sub-levers l7 and the upper arm of. each lever 36 has pivoted thereto a link 38 which i connected with another'of said sub-levers It will thus be seen that each key '30 is connected through the link 31 and levers 32 and 16 with two type bars. Preferably, each key i connected with one of the short type bars 10, and with one of the lon 'bars l1, and the small letters are printhv short type l ars and the capitals by restoring p l longtype bars. As the long and short type type bar and extends radially thereirom bill's alternate in the system, each of the levers 30 is preferably connected with two adjacent type bars and thcretore with two adjacent sublevers 17. 1' It will be seen that both type bars are constantly connected with the key and that if either one of thesi two type bars be held by any means againstopt-ration and the 1 key l e-depressed, the other type bar will lt' tZS it o )(Piilvti W links :11 oxiendln torbe operated. For example, if the operator placed his linger over the type of the longer type bar 11 and struck the key, the shorter type hair would be thrown to the printing l point; and it he held down the shorter type 3 bar the longer one would be thrown to the printing point. It will also be observed that i in this operation throperatcd one of the links l 37, 35 has a leverage of about two to one on the point 35, at which the lever is connected with the lever 36. To compensate for this the link 31 is connected with the lever 1 32 atv a distance from the rod 33 about twlce as great as the distance of the point 35 i from said rod. By this means the leverage l of one of the keys 30 on the operated type. bar is approximately the same as that of one of the keys 26 on its type bar.

The case shift mechanism consists of l means for blocking one or the other of the l two type bars that is connected with each of l the keys 30. This blocking can be conveniently done at the lever 36 and I prefer to block this particular part. To this end two 1 cross bars 4.0 and ll are mounted at their ends on angled end plates 42 each of which has a slot l3 therein which slot embraces a pin 44 projecting inward from the side plate 1 of the main frame. Each of the plates 42 is pivoted at 45 to a link 46 which in turn is pivoted at -17 to the side plate 1. Two links 48 are pivoted at their upper ends on the pivots -t5'and at their lower ends they are pivoted at 50 to arms 51 which to a rock shaft 52. The parts normally stand in the position shown in Fig. l but by rockin the shaft 52 the arms 51 are raised to t e position shown in Fig. 3, thus prising the end plates 42 and the cross bars 40 and 41. The motion of this frame is guided by the links 46 and by the pin-andslct connections 43. 44. the construction being such that as the frame moves upward it. is rocked from the position shown in Fig. 1 to that shown in Fig. 3. \Vhcn the parts are in the Fig. 1 position the bar40 stands iii-front of the lower ends of all of the levers 36 and prevents said 1 V61 ends from moving toward the front of the machine liut leaves the upper ends of said levers free to move. The result is that if a key 30 is depressed the upper end of the lever 36 moves toward the front of the maare secured one at either side of the machine moving upward and tilting the frame comlac the short type bar 10 as shown in Fig. 2. \Yhcn the parts are in the po ition shown in Fig. 3, the upper ends of all of the lever 3U are blocked and the operation of the keg, 30 causes the lower end of the lever 36 to move toward the front of the machine, thus operating the long type bar 11.

It will he noted in Fig. 1 that when the shift mechanism is in its nornial position the pressure of the lever against the plate 40 substantially lengthwise of the link it so that said pressure has practically no tandene to move said link about its pivot and herefore. little or no tenrlenrv to Zi.r1i-.' the shaft 5- and the parts coir ne ted there-ii it ill aiso he noted that a hot, drawn througl the center of the pin a l And at right angles to the slot -13 wil pass pretty nearly through the point of contact between the lever 3t} and one of hals 40, -11, so that the pressure of this lever against the plate has practically tendency to York the frame about the chine, operating inn In Fig. -in'iila.r mat-hemetical re lath 5 will a seen to obtain; that is to v, llt' {H'ktwnili't of the lever 8a against 4h .411 1' is 'ithl ntltllly lengtlm'ise of "rlink" in and Ll)! oint of contact is apmai lg in the normal line through the pin it. It. will also e observed that the shifting motion oi the frame bar ll) or -31. is in 22 (iirectwr opposed to that in which the hlocked part (in this case the end of the lever 36) moves. That is to say, the lever 36 when OD-llfilffd, moves toward the front of the machine. and the blocking bars when shifted, move toward the rear. The result is that if a key 30 be started down before the shift key has completed its stroke, the end of the lever 36 will begin to move, but will he pushed back to normal position by the har. .t is not essential, therefore. that. the shifting operation he completed before heg zinnirig to depress a key 30. Proferably the ends of the h". ers 36 are rounded toward the front of the machine as shown in order to pivot niccl on the bars it and H. I

The shift mechanism may be operated in anions ways but lprefer to extend the lever arms 51 toward the front of the machine forming lever arms 3 earh of wl'iit'h has pivoted thereto at 54 the lower end of the stem of a shift key The parts are normally held in the position shown in Fig. 1 by means of a restoring spring 7. (Figs. 3 and 5) Wa sh s 'nhig conmetcd at its: lower end with one of the arms .333 and at its upper end with a statiormry na1't.'hut when either of the shift liqvs' in} is depressed the ease shift nierhani 5 is moved to position to ilocl; the upper ends of the levers. 3

l'norder to look the case shift mechanism in sl. ed position l proxidc a shiftdti-xk key in. Figs. 1. Q and 4. This key has a stem t ll. the lower end of which is pivoted at (d to in small ranrplaie or lmer 12 whh h is pivoted at 63 to one of the side plates 1. returning spring til normally holds the plate 132 and the ke in their upper positions shown in Fig. l but these parts van I i l l I l l j i l l l l i 1 one of the lever arms 51.

be depressed to the position shown in Fig.1. 3 by operating the key :39. The lower part of tin plate (-2 is formed as a sort of ram which acts on the projertirg end U5. Fig. 5. of the pivot screw 54 and depresses the case aloft frame ahrn the kcv 5% is operated Said :flle. o2 ha a notrh o formed in its lower end. into which notrh the p n 05 catches when the ke v is do; ssed, thus lorking the parts in their operated 1)O lil )]1 as shown in Fig. B v striking either one of the tvvo shift keys in the frame can be forced down so as to bring the pin U5 out of the notch (36 whereupon the spring til will restore the lock to normal position and when the key 56 is released the Whole case shift mechanism will return to normal p0- Sitiun.

it ill be noted that the levers 32 are curved into a sort of Sshape and that they rxtend through the long slot between the two bars 40 and 41. This construction is not absolutely essential but. it is a convenient any of rn'ganizing these parts and it gives thr desired action of the lever. It will also he noted in Fig. 1 that some of the links 21 pass through this same, slot. It will he noted in Fig. 4 that there are five rows of keys with twelve keys iii-each r0 except the bottom IOW which has only ten printing keys. There are thus fifty-eight keys which nrint eighty-four characters. It will he noted that. the alphabet keys 30 are all in the first. three rows. from the bottom ahhr n as there are. only twenty-six of these keys. a number of the character keys ii are also in these three rows. "he two in rows consist entirelv of character keys each connemed with only a single type hll and it is the ink Ll connected with these two rows of keys that pass through the slot. Some of ll 1* other links 21 pass be- ,low the liar 40.

It will of course i understood that various mang (am he .de'in the details of ('UlWlliifllUIl and arrangement Without de' parting from my invention.

In Fig. t 1 have shown a stop device for rrresting the shift frame in. each of i 'vvas of a r' metal i'nathct tiT :rw-u-e? to one of the side pla-tes'land hcnt so as to have one part beneath and another above The part against which this arm normally rests, i shown e noted that when one rt the bars 40 and shift from one type bar to another has been by disconnecting the key from the first bar and then connecting it with the other. In all such devices, the shift must be effected before the operation of the printing key is begun, and the mechanism will not work properly if the operator is a little slow in depressing the shiftkey. This has been a serious fault with the prior mechanisms referred to. In my construction a plurality of independent printing elements or type bars have constantly maintained or permanent connection with a single key and means are provided for selecting one of said type bars without disconnecting the other or others. The shift is effected by changing the motion of part of the connections, in the present instance, the floating links or levers 36, without disconnecting any of the type bars. Said levers are provided with double fulcrums, and they swing sometimes about one fulcrum and sometimes about the other, thus shifting the application of the power from one type bar to another. If the shift key be depressed while a printing key is in a partially depressed position, the type bar which had begun to move will have its travel reversed and will be forced back to normal position while the other type bar will move toprinting position, the two bars passing each other in opposite directions during the depression of the key. It will of course be understood that the means for accomplishing these results can be varied considerably B5 of thetype bars belong to one set or sort of l tion of from the precise mechanism described, without departing from my invention. It will also be understood that my novel case shift mechanism is applicable to machines in which all of the printing keys are connected with a plurality of type bars each.

From what has been said it will be perceived that I have provided two different sorts of type actions in one of which one type bar only is connected to each key, and in the other of which two type bars are connected to each key, and that the type bars of one of these kinds of type action are interspersed with those of the other kind. The letter keys extend in three rows nearly across the keyboard and the character keys extend in two rc is entirely across the key board so that in the type bar segments some the linkage l type action and some to the other and that the two sorts are intermingled the one with the other. The blocking means, however are so designed so as to affect only those type actions in which two type bars are connected to the key.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a series of two-armed levers, type bars connected with said levers, one type bar for each arm of each lever, means for operating said levers, a tilting frame arranged in front of said levers and movable to two positions in one of which it blocks one end of each of the levers and in the other of which it blocks the other ends of said levers.

2. In a typewriting machine, the combination of stationary framework, a number of keys. a number of type bars, means connecting each key with two of said type bars, means for blocking the connections of one or the other of said type bars and leaving the other free to be operated by its key, and means for shifting said blocking means, said blocking means comprising a frame having in and slot connection with the stationary framework, and two links pivoted to said frame and to said framework.

3. In a typewriting machine, the combination of two type bars, a floating lever, two links one pivoted to each end of said lever and each of said links connected with one of said type bars, a lever pivoted on a fixed pivot and having the middle of said floating lever pivoted directly thereto, crating said lever, and a frame shiftable into juxtaposition to one end or the other of said floating leverto block one end or the other of said lever and thus cause either one or the other of the type bars to be operated by a depression of said key.

4. In a typewriting machine, the combination of a series of type bars, a series of keys less in number than said type bars, angled key levers, means connecting some of said levers with said type bars, one type bar for each lever, and means connecting other of said levers each with two type bars, the last recited means including a series of floating levers, ends with one of said type bars, a series of sub-levers each having the middle of one of said floating levers pivoted thereto and each connected with one-of said angled key levers. the lever arms of said sub-lever being a related that the point on said sub-lever at which it is connected with said key lever moves approximately twice as far as the point at which said floating lever is pivoted, whereby the two sorts of keys have substantially the same extent f depression.

5. In a typewriting machine, the combina- ,a series of printing keys and key a key for opeach connected at each of its i hat-i two type liars foreach key. the last,

noozsozz 3; but at each end of ii-n; fr m said keys to floating levers. and case hanisni ili 'l'i i llfj two bars, one for m; oi iorcrends and the lilorhi the other series of lcvcr- .Hi'm a ll HWNIE- 'HH Ylllfi said hars alterhil with a MllrlPY L and mea tor block ng" either nd of 4m it ai that i i i :l: i !!i."\ position, said means WtlE the lever arms of I whim" INF! mean for m ving" one ofsaid bars d and from the corresponding series it-l'-(lE lS in a direction approximating 15021 to the unhlorlim' en of the i lzmlion in which said lever-ends move ieirr as is imparted to said l nh- \\':i L Two operated wherchy it" a printing, key nll ot the keys lune su staritialiy h- .wimig f depre---ed before the shift key or sinmltaextent of dip. IE-Hkij' with it and one of said floating (3. in a l l ijk'- ."itlls;f machiniand in case levers has begun to operate, said bar will shift mechanism. the r nil imltion of a sciiei't'SlHl't the end of said lever to initial posiof type bars. a series of floating levers. each. tion and the other bar will leave the other n; s: related zato Ive 1a connected with wo oi" sari type liars, one end of said lerert'ree to be o 'ierated.

l0. in a typewriting machine, the combintiii n of :1 series of type hars, a series of keys l0 S in number than said type bars, a wries of floating levers each connected with Who oar living: 'llllt't'lfitl witn each rnd "l each lover. a sci-i of keys. he) operated means for operating; said floating levers and means for blocking one end or the other of each of said floating levers; a1d blocking; I two of said type bars. one type bar at each inean comprising two bars connected toend of each leveix connections from said keys e'wrz .ir lStlt .1 s o lQllt GSOSHL e'ersan ae 1 otal connection with the stationary framemechanism including two bars, one for 'OIli. and two links connected with said Hocking one series of lever-ends and the frame and arran ed to he mihstant all; on nun-r for blocking the other series of lei erthe dead center in either shit'icd l)(), ltl' ll of mils, rigid omiectiong between said bars, said frame. wio' lHlI'S and rsinnections constituting a- 10 1- In a l 'pmvril'ilig machine. the omhimr i Frame. and means for imparting to said iion of a series of type bars, a series of keys ess iii number tha said type bars, a series 5' (-f floating lei'cr:-i he connections for oprecedes from the corresponding series of eratii-g ai l floatinglevcrs, connection from i tw nd it moves in a direction approxiea h ")f aid floating lovers to two of aid uniting that in which said lever-ends move I l I l frame a motion inc uding a turning motion w ll that when one of said hars approaches t e =arone r nnt-(tion at each run oi uch when operated, whereby if a printing key is ltvar. and hi table blocking means for said ii jll'tPF-ft il before the shift key or simultanefl ziti iuers, said blocking means compriswith it and one of said floating levers .ng t c hare. one 1? r each series of le el begun to operate, said bar will restore (Z'flS Hld shiftabie alternately into operative i tin end of said lever to initial position and ns t a some of said connections passing the other bar will lea re the other end of said betwcn sol d bars. lever free to he o 'ierated.

n a typewriting machine, the conzhina- I llv ln :1 typewriting machine, the combi- .on (F a series of type bars, a series oil keys nation of a series of type bars, a series of less in number than said type bars, conneckeys less in number than said type bars, a *ions tr n some of siiid keys to said type series of floating levers each connected with as A: type har for each key and cqnnec two of said type liars, one type bar at each end of each levcri connections from said titans 11 m1 the remaining keys to said tvpc recited cc-miectjora rcridingfloating levers mechanism including two bars, one for ach connected w 1'1 :1 key and each conblocking one series ofdever-ends and the reced p th two re hurs one at each 'end other for blocking the other series of lever-- f aid lever, mean; for blocking one end of 2 ends. rigid conne tion between said bars, m n o said levers. said means including tw t said hzll'hf and connections coi'istituting :1 in shiftaole alternatively into operiitiw frame and means for imparting to said tion, one oteach series of lever-tinder frame it rfzotion includ ng a turning motion t e i*r-= eot'io-1=;-, from the first recited ii" to su h that when one of said bars approaches tr. t y was passing between said trio rig or recedes from the corresponding series of liars. letter-ends it moves 1n 2! direction approxikey: to the middles of said levers, case shift 120- lever operated by said key, connections from mating that in which said lever-ends more when operated, whereby it a printing key is depressed before the shift key or simultaneously with it and one of said floating levers has begun to operate, said bar will restore the end of said lever to initial position and the other bar will leave the other ,end of said i lever free to be operated, and guiding means i for said frame-arranged to come substanl tially tr a dead center position so as to resist the pres ure of the leycrends against the one of said hars in use.

12. In-a t i'pewriting machine, the coinbination of a eries of fronttrike type bars. i a series oi keys less in nu i'nher than said type hars, wiiuu- -tions from one of iid keys to two adjar nt trsipe bars, said connecti ns in huiing a floating lever conn cted at ea h of i it ends: with a. type bar and atits middle with said key. and means for blocking one end or the other of said lever.

13. In a typewriting machine, the combi nation of a key, two type bars, a floating said type bars to the two ends of said float ing lever, and means for blocking the ends of said lever alternatively, said blocking means including a frame having two blocking surfaces in different planes,'means for ei'introlling said frame. said means including links and pin-and-slot connections between the said frame and the stationary framework of the machine, and a case shift key for shifting said frame.

14. In a typewritiug hination of a eries of ti arranged in two sets 1 in diii'ercnt arcs. and the type bars of one set aiterna ing in the basket with those of the other set. two sets or sub-levers connected with said two sets of type iiars. keys, means whereby a key wlun operated can operate machine. the coina sub-lever of one of aid sets, and means slii'ftable to cause said key to operate a sublever of the other set, said shiftahle means i including means for transferring the action i of said key from one of said sub-leversto the other during the operation of the key, t

15. In a type-writing machine, the comi bination of a seriesof front-strike type bars arranged. in two ts, links and sub-levers 1 extending radialh from the several t pei bars, links extencin r from said su o-leirrs toward the front oi ilmachine, priut'ugi keys, means wherfi; in otsaid keys when operated operates one it said forwardly r\' tending links, and mean sliittahle to ave said key when operated to operate another one of said links.

1 In a typewritine machine the com bination of a series if l'roii trike type t irs arranged in two sci. link and nib-livers extending: radially from th .i'VQlfll type bars. links extend ng from said sub-levers toward the front of the uni-chine, printing crate one of said forw s rik type bars keys, means whereby mic or said keys when operated o erates one of said forwardly extendin-gii-uks, and key actuated means shiftahle to enaiile said key when operated to reverse the operation ofa type bar if started before the shift key is completely operated.

17. In a typewriting machine, the combination of a. series of front-strike type bars arranged in two sets. links and sub-levers extending radially from the several type bars. links extending from said snh levers toward the front of the machine, an actuat r permanently connected with two of said links. a printing key conuecied with sa d actuator, and shiftahlc means a in one position of said aunts. r ardiy extending and iii another posi a of sa d sh means said key will operate he otht. said links.

18. In a typewriting machine, the com bination of a series of front-strike type bars arranged in two sets, links and sub-levers extending radially from the several type bars, a series of key operated actuators each connected with two of said suh'levers, a

re is! series of keys each of which is connected to one actuator and a pair of sub-levers, and

shiftable means cooperative with said series ate one of said suh'levcrs and to rock in an other way to actuate the other of said sub 2 In a type-writing machine, the combination of a unitary keyboard comprising priming keys for numerals. punctuation marks and other signs and for letters: a

unitary printing mechanism operated by said keys, said printing mechanism including type bars carrying types for printing capital letters. type hars carrying tvpes for printing small letters and type bars carrying types tor printing other characters; connections from ea h of said charact k y other than the letter keys to appropriate type liars. each being connected with pe bar out connections from each i leti 'r L to one of said capital L ri also to one of said small the lad mentioned conuec q ilfiuiiltfi levers and change- 3H, means for thei'ulcrums of Said lever to cause ea y-id keys to operate one or the other ii two type bars as desired, and iiieaug the keys to the floating lerris, iectiag means including levers so designed as to give to each of the letter keys substantially the same leverage on either one of the two type bars with which said letter key is connected as one of the character keys has on the single type bar with which-it is connected.

21. In a iypewriting machinefior rinting small letters, capital letters, munera s, punctuation ,marks and other signs, the combination of a set of type bars carrying types for printing capital letters, a set of type bars carrying types for printing small letters, letter printing keys each connected with one type bar of each of said sets, case 7 shift mechanism, a set of type bars for printing other characters, and keys for op- Copies crating the last mentioned type bars, the

latter being interspersed among the ty bars of the other sets, and said case shift mechanism including means for selectively blocking the action of those type bars connected two to a key being inoperative on those type actions in which one type bar only is connected to each key.

Signed at Syracuse, in the county of Onondaga, and State of New York, this 23rd day of December, A. D. 1910.

' JOHN H. BAR-R:

Witnesses:

- E. E. CORY,

I. L, MARTIN.

0! this patent may be obtained for five cents each, by addressing the. Commissioner of Patents,

Washington, D. Q.

and said blocking means,

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