US1215762A - Type-writing machine. - Google Patents

Description

J. H. BARR. TYPE wnnme MAQHINE. MPLISIATWN FILED p.21 19m.

Patentellleb. 13,1917.

3 SHEETS-y-SHEET I.

WITNESSES l. H. BARR.

TYPE WRITING MACHINE. APPLICATION FILED mun. 191's.

Patntud Feb.13,,1917

' 3 $HEET$-$HEET 2 "INVENTIDR Hua ATTn RYNE \NITNEESEE y if. M/

' 1. H. BARR.

TYPEWRITING MACHINE. APPLICATION HLED mun. 191s.

Patonted Feb. 13, 1917. 3 SHEETS-SHEET 3- l N vENTDR afyw WITiNES'iEE f l {7%.- M

HIS ATTO NEY 301m H. BARR, or NEW YORK,

N. Y., ASSIGNQR T0 REMING'JON TYPEWRITER COM- PANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE,

Specification of Letters Patent.

Patented Feb. 13, 1917.

Application filed January 2?, 1916, Serial No. 74,57 7.

a all whom it may concern: 7

Be it known that I, JOHN H. BARR, a citizen of the United States, and resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and useful IlllTHOYQmLHtS in 'lyperiting Machines, of which the'following is a specification.

My invention relates to typewritingr machines and especially to such typewriting machines as include also shift mechanism.

()ne of the objects of my invention is to provide improved case shift mechanism. I have provided a platen shifting means for a front strike typewriter, said means being effective for its purpose and of very simple and light constrLn-tion.

Another object of my invention isto provide a typewriting machine with an unusually large number of printing characters, but without unusual. complexity in the mechanism and without making the machine of unusual size or the type bars of increased length, and to use said lnachine for writing two widely different languages, such for exan'iple, as Russian and German. The machine shown in the accompanying drawings is capable of printing one hundred and fif teen different characters, and the characters shown in the drawings are suitable, when used in the manner hereinafter d8SCIib6d,fO1 the two languages mentioned although other languages can be written with the same characters as, for example, the English lan-- guage,

To the above and othcrends which will i hereinafter appear,,my inventionconsists H1 certain features of construction and combinations andarrangenients of parts, all of, which. will be fully set forth herein andparticularly pointed out in the claims. I

One embodiment of my invention is illus trated in the acompanying drawings in which-- 1 Figure 1 is a fore and aft vertical sectional view of the machine with some parts omitted and others broken. 1

F g. 2 IS a vertical sectional view of the 1eft-hand end of the carriage framework,

- and some. of the associated stationary parts,

the section being taken at the left of the platen and looking toward'the left.

Fig. 3 is a. 'Viewsimilar to parts of Fig. 1 but with the platen shown locked in shifted .clude many details of the Smith Premier No. 10 machine whizh I have not thought it i sub-levers are co: itrolled by returning position and with a type bar in printing position.

Fig. l. is an ison etrir view of the upper part of the shift fr: me and its guide.

Fig. 5 is an isonutric view on a smaller scale than the othei figures a nd. showing the parts of the (use sh t't mechanism located in the base of the niaciine.

Fig. (3 is a diagrrannuatic plan view of the type bar system eveloped) and the key boa rd.

My invention capable of embodiment .in machines of va 'ious designs, but it is here shown in a n arhine having' many of the characteristics of the Smith lreniier No. 10 typewriter, t 1e construction of which machine is so well mown in the art as not to require detailed description. Moreover, my machine as actl ally constructed can i11- necessary to illustra :e' in the drawings.

The main frame of my machine, except for some obvious changes in the proportions,

can be substantially like'that of the Smith 30 'Premier No. 10. an .1 it is so shown in the drawings. Said frame includes side plates 1 having, cast integral therewith posts 2, which support a to.) plate it. Standards 4 rising from said top plate support a stationary rail 5, aloi which. by means "of anti-friction balls a carriage truck 7 is adapted. to travel. The halls are shown controlled by a spar ?r S. A

The right and lelt side plates 1 are connected together by the. top plate 3, a'keyboa-1rd plate 10, a front bar or plate-J11, and by'a rear connecting member not shown in the drawings but which is secured to the side plates by screr's 12, F 1'; and said side plates may be connected by other devices also. The piinting keys '13 are on stems 1.4., which pr eject through the keyboard plate 10 and ope ate. bell-cranks 15, i which are connected by links 16 with sublevers 17, which by links 18' are connected with shorter type lJI-IS 20 and longer type bars 21, which type bars armrespectively, pivoted by ball bear: ngs on segments 22'and 23. The type bars 550, 21 carry type blocks .2 1, some of which have two types each, and

wire 25 mounted in asegment 26, and said no springs 27, and each of said sub-levers is adapted to operate a universal bar 28. The type bars normally rest against a pad 30.

. With few exceptions, some of which have been or will be noted, and others of which are obvious, the parts thus far described are substantially like, and in many instances identical with, the corresponding parts of the Smith Premier No. 10 machine. h

I have modified the carriage truck 7 in order to adapt it for aplatenshift machine. Saidtruck comprises rails 31, which cooperate with the balls (3 in the same manner as in the Smith Premier No. 10, machine, and

said rails are secured by screws 3'2 to end pieces or brackets 33 in the same way as in the said machine, but the form of these brackets has been modified. Each of them has projecting from its forward end an up per and a lower lug or bracket- 34. and

bl'li'fiilgll said brackets are screwed upper and lower stop screws 35 having check nuts 36, Said stop screws are adapted to arrest the axle 37. or a sleeve or hub 38 thereon. of the platen when said platen is shifted up and down as hereinafter described.

The platen frame comprises a right-hand end pieceil, Fig. 1, a left-hand end piece- 42, Fig. 2, and certain connecting devices. Thei; connecting devices include a rod 43 above the platen and 'grooved for cooperation with the usual paper fingers, not: shown, and a lower rod H; and they also include at the lower rear part of the platen frame derstood.

a channel bar or grooved rail 45, which is secured to the end pieces 4:1 and 42 in any suitable manner. as by screws; The platenaxle is journaled near its ends in the end pieces 41 an 42. u

The plateir 'rame is guided in its shifting movements by an upper pair of links it) and a lower pair of links *7. said links being pivoted to the end, pieces 41 and 42 by means ofpivot screws TF8. The links 46 consist of arms rigidlymounted on a rock shaftroO',

Figs 2 and 7, which rock shaft is suitably PIYOitBd at 1ts ends on pivot screws 51, Fig.

1, in the end pieces 33 of the carriage truck. Therock shaft causes the two arms -16 to swing up and dow-ntogether as will be un- The links 47 are hcresh'own as separate links, each pivoted to one of the brackets" 33 on a pivot screw 52, Fig. '2. Any

suitable (I'ounterbalancing spring can be provided for the platen and platen frame, such as the spring 49, shown H1 F g. 3 coiled about the rock shaft 50 and connected at one end to said shaft.

The line spacing mechanism includes a line space ratchet wheel 53 which is engaged by a dog, said dog mounted in a barrel 5%.- which barrel is mounted on the end of a line spacing rock shaft 55 which shaft is j ournaled in the right-hand end piece 41 of the platen frame.

aid shaft projects toward the front of the machine where it can be bent into any suitable form toconstitute a handle. The mechanism can be adjusted to regulate the extent of line spacing by means of a handle 56. I have not shown any of said mecha nism in detail because in the machine illustrated it is identical with the corresponding mechanism in the Smith Premier No. 10 typewriter, except that in the present 'machine the hand-operated parts of the line spacing mechanism are mounted in the end piece *1 of the platen frame instead of in the. end piece of the carriage truck as in the Smith Premier machine referred to, this change having been made in order to' enable line spacing to be effected when the platen is in upper case position.

The drawings also show a rock shaft 57, Fig. 2, Pivoted to the platen frame in part by a screw Fig. 1. This is the paper feed release shaft which in the present machine is similar to that of the Smith Premier No. 10. except that I have mounted it in the plateflfrmne instead of in the truck in or- 'der to allow of the shifting of said platen frame.

The case shift mechanism includes a roller 01' wheel (50. preferably situated at or nearthe middle of the machine, as viewed from the front. Said wheel runs in the groove of the channel bar 45, as shown, and

is of a diameter approximately equal to'the width of said groove, which groove, faces the rear of the machine. The wheel 60 is jonrnaled on a pin 61, Fig. -t, projecting toward the front of the machine from a.

bracket 62 constituting part of a shift frame,

which frame also comprises a vertical post 63 to which, as shown in the present instance, the bracket 62 is secured by screws 64. The post 63 extends into the base of the'machine where it is pivoted to a lever arm 65by means of a pivot screw 66, said lever arm, as here shown, havmg, its rear end in avertlcal slot in the lower end of the post. The arm 65 is rigidly mounted on and at about the middle of a square rock shaft 67, which rock shaft extends transversely of the machine,

being pivoted at its ends by pivot sizrrewstiS,

Fig. 5, to the side plates 1 of the machine. One or more case shift keys 70' can be provided, two being shown in the present in-' stance. mounted on the forward ends of arms 71 which at their rear ends are mounted rocked and the arm 65 mhvcs the post 63 upward, the wheel 60 lifting the platen frame to uppeincase osition, as shown in Fig. 3. The details of t is shift key lever frame can,

7 of course, be varied. As here shown-the keys 70 are provided with separate systems secured by screws I3 to the forward ends of the lever arms 71, and said lever arms are themselves curved and shaped in such a way a as to bring thcv keys 7 in line with the space key 7i ofthe typewriter. Each of the lever arms 65 and 71 is made of sheet metal and formed with a square perforation to fit the (shaft 67, and at its end each of said lever 1; arms is formed with a flap or ear 75 bent off perpendicularly to the rest of the lever arm,

in such a way as to lie flat against one of the flat sides ofthe rock shaft, to which it is secured by spot .wfclding. The braces 72 are hem shown as bent in sucha way that the forward end ofeach of them lies fiat against the side of one of the lever arms 71 to which it is fastened by spot welding; and the rear end of each of said braces is similarly regs lated-and secured to the arm ($5. lVhen this frame is completed, therefore. it constitutes in effect one integral piece, which is light and strong and inexpensive to manufacture. .1 t-will, of course, be understood that the shift keys can be disposed in various ways. .the particular arrangement shown being however a good one. 1

' It will be perceived that the lever. arm 65 i s rigidly secured to the shaft 67. which shaft is a long shaftpivotcd at its ends and therefore held against any other movement than that -(if rocking about its own axis.

V Theflower end of the post 63 is therefore "guided by the arm 65 with as much pre- 01810111818 necessary for its purpose.

In order to guide the upper end of said post various means can be provided but I-' prefer the one shown 1] the drawings. Said or screw, the enlarged left-hand end of means comprises a guide link or frame 76 lfi extending in a f'rontand back direction and having rigid therewith ii rear cross piece or rock shaft 77 and a forward cross piece 78. The parts 76, 77 and .78- when I seen from thetopof the machine have the shape of the nea- H' andall of said. parts -can'be integral or be. rigidly secured together espreferred; The forward cross piece 78 "is pivoted at its ends on pivot screws 80 havin also a rearwardly directed arm with ears ent downward and secured to the 1 upper end of the post 63by means of rivets 83. The cross piece 77 is pivoted on pivot whlch'pass through ea'rsSI bent upward framework which a lows the forward end of the link 76 to mo 'e' freely up and down about said hearing but which elfectually prevents sidewisc motion of said link; and the cross piece 78 is also of such length as effectually to prove! t wabbling of the upper part-of the post (33 or turning of said post about a vertical axs.

I have provided 1 simple and convenient shift lock which includes a bell-crank 87;

which. as shown in the present instance, is located at the left of the front part of the keyboard and is pivoted to the leftdmnd side plate 1 on a pi 'ot screw 88. This bellcrank has a downwz rdly extending arm and a forwardly extending arm. and .a shift lock key 90 has its stem J1 pivoted at 92 to said forwardly extending arm. The lower arm of the bell-crank 1as its lower edge 93, Fig. 3, nearly concentric with the pivotal axisof the lever; and in front of the 'part 93 the lever arm is f )rmed with a stop lug'or ear 94-. Said lever arm is normally drawn toward the frontol the machine to elevate the key 90 by means of a light spring 95 secured at 96 to a stationary part. The locking lever 87 is in lapted to coiiperate with a pin 97 projecting 1 rom one side of the lefthand shift key'lever arm 71. I prefer to make this pin adjustable up and down so as to regulate the tCtlOIl of the lock in a manner that will be understood and to this end said pin consiszs of a shouldered bolt whichprojects out into position foreoiiperation with the lever 87 and the reduced part of which passes though a vertical slot- 98 formed in thc lever arm 71. The inner end of said bolt orscrei is threaded and anut 100 thereon can be loosened for the purpose of adjusting the pin or screw up or down in the slotand when the right adjustment has been obtained t ie pinl is secured in adjusted. position by pightening the nut 100. The shift lock is normally in unlocking position, but it can b 2 moved to locking posi tion by depressing he key 90,.and it will i then be held in looking position by fricthm on the pin 97. The lock can-be released by striking a. shift key 70, thus relieving said friction and allowing the lock to be restored by its spring 95.

Any suitable ribbon vibrating-mechanism can bemounted so as to shift up and down i with the shift fran 1e or post 63. In the 105, which lever has a long drawings the bracket 82 at the top of said post is shown with a forwardly and upwardly directed arm 10l,-the upper end of which is formed into vibrator gui es 102, Fig. 4. I have shown a vibrator 103 guided at its upper end in the guide 102 and having an ink ribbon 104 therein. Said vibrator at its lower part is pivoted on a lever fulcrum or rock shaft pivoted at 106 in the ears 81 above the cross piece 78 and saidlever is shown connected at its rear end with an operating link 107. ,The "ibrator connections shown in the drawings constitute parts of a ribframe, 76, 7?,

' pin.

type bars,

bon vibrating mechanism invented by Arthur J. Briggs and shown in, a pending application of his filed December 24, 1915, Serial No. 68. 177. The wide bearing guide 78, causes the vibrator guides 102 to be held and shifted with a sufficient degree of rigidity and precision.

The wheel 60 can, of course, be journaled in any suitable way but in the present instance the pin 61 is a smooth cylindrical pin and the wheel has a hole through its center of a, diameter suitable for turning on said \Vhen the parts, are mounted in the machine the wheel is prevented from slipping off the pin by the channel bar 45.

The keyboard and type bar systems'are shown in part in side view in Fig.1, and the arrangement thereof can be understood from Fig. 6. The type bar segment 22 stands within or above the segment 23 and a little farther toward the rear of: the machinethanthe segment 23, and the free ends of the shorter type bars 20 are, therefore, at

some little distance back of the free ends ofthe longer type bars 21. The long and short type bars alternate throughout the system so that each long bar, except the extreme right-hand end one, short ones;

lies between two long bars. As the free ends of the long type bars are all entirelfree of the short type ed all of said long type bars with double type blocks 24, that is to say, with type blocks each adapted to print two characters.

which arenear the ends of the system, the necessaryfiare to the type blocks vided with a double "type makes 1t inconvenient in some instances, and perhaps impracticable in others, to provide them with the long type blocks necessary to print two characters; but the extreme leftand one of the short type bars 20 is problock and several of those short type bars near the middle of the system where the flare isless pronounced,

are also so provided. In the present instance 1 the six type bars 20 nearest the middle of the s stem are shown provided with double e locks, and the remaining shorter type bars, except the left-hand exid'one, are shown stance and lower black characters,

lies between two and each short bar, except the extreme left-hand end one,

In the case of those shorter have shown thirty-six short type bars and thirty six long type bars making seventy two in all; and I have shown seventy-two keys arranged in six rows o'f twelve each. The keys of the three-rear rows are connected with the short type bars 20 a's indicated in the diagram, Fig. 6,"and the keys of the three front rows are connected with. the long type bars 21. It will of course be understood that those type bars carrying sin gle types can be used only when the platen is in lower case position and the remaining type bars can be used when the platen is in either the upper case or lower case position, printing upper case characters in one incase characters in the other. In the arrangement described there are forty-three type bars provided with two types each, and, therefore, printing eightysix characters; and there are twenty-nine type bars carrying single, types and therefore adapted to print twenty-nine characters. The whole machine therefore has one hundred and fifteen characters. For the convenience of the operator and in order to prevent mistakes in using the machin I have marked the printing keys 13 in two distinctive ways. As shown in the drawings, those keys that are connected with double types are shown with white tops and while those connected with sin 1e types are shown with dark tops and white characters. In the diagram Fig. 6 the connections from the keys to the type bars are indicated diagrammatically by broken lines 16, these representing roughly the links 16 and the other devices connecting.

the several keys with'their respective type bars. It will be understood that in the machine the lowerarms of the several bell cranks 15are bent toward the right or toward the left in order to prevent interfer encebetween the various links 16 and this fact is indicated in away in the diagram.

In the present instance I have used the -Roman characters for writing German and acters is only a difierence in size with little or no difference-in capital letters of the Roman alphabet I shape, and in some in-' stances where these characters resemble the letter. some dthers; but the Roman small b, m, etc.,

the letter both large aid small for the Russian and have provided one oi. H.9- single types with the corresponding Roman small This is true the B, of the M and do not occur in the Russian and accordingly one of the single types is provided to print each of those characters. One ofthe Rus sian letters so nearly resembles the Arabic numeral 3 as that a single type can be used for both. I have also used some of the single type to print certain vowelswith the German 'u/mlaut, thus avoiding the necessity which would otherwise exist of providing any so-called accent mechanism; that is to say, by this means it is rendered unnecessary to arrange some of the kysso that they'o'pcrate the ribbon'vibrator Without operating the carriage escapement, Some of the double type bars and keys have also been utilized to write'the Roman capital and small letters where neither of these resembles anyljdussian character. This is true of the J key and type bar for exampie, and on. the other hand Ill some instances two such characters are printed by two of the single type bars, the letters Wand F being instances;

, In some cases. of which the letters X, A and I are exam'pies, the Russian and Roman letters, both capital and small, are either identical or else'are so nearly alike that one double type answers for each of these letters in both languages.

- Various changes can be made in the de tails of'const-ruction and arrangement without departing from my invention What I claim as new and desire secure by Letters Patent, is?" 1. The combination with a m, platen frame having a rail, of a rock shaft, an arm projectihg from said shaft toward the front of the machine and having a shift key, an arm projecting from the middle of said shaftf toward the rear of the machine, a post pivoted to said rear arm, a roller or wheel for said rail carried by said post, and

a guide link for the upper end of: said post. i '2; The combination with a shiftable platen and platen frame, of means for shift tion with a platen, a (arriage truck, and a platen frameshiftably mounted in said truck and comprising a raihof a post having a wheel for cooperation with said rail, a

lever arm for moving s: id post up and down and for supporting'and end of said post, and gii upper part of said posi, said upper guiding means consisting of a li 1k having two parab lel bars and :1 connect .ng-har, one of said parallel bars being PiVJted to the frame of the machine and the other to said post.

4:. In a typewriting n achine, the combination with a platen and a shiftable platen frame having a rail, 0." means for shifting said frame comprising post 63' having wheel 60 and bracket 82, said wheel cooperating with said rail, and the g aide link comprising arm 76, Wide bearing pa rt 78-pivoted to said bracket 82,.and also wide bearing part 77 pivoted to the frame of 1 he machine:

5, The platen and platen franc comprising a bar (guiding the lower which constitutes a rail, of means for shift- JOHN H. BARR,

Witnesses? CHARLES E. SMITH, E. M. W

ng means for the combination with a shiftable this 25th day of

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