US1059782A - Type-writing machine. - Google Patents

Description

,V. STERN. TYPE WRITING-MACHINE. APPLICATION IILED DEC. 23, 1911.

Patented Apr. 22, 1913.

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'HEATTURNEY INVENTUR v. STERN. TYPE WRITING MACHINE.

APPLIOLA'IFION FILED DEC. 23, 1911.

Patented A r.22,1913.

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vAsILrsrnaN, on Moscow, RUSSiA, ASSIGNOR, BY MEsNEAssmNMEN'rs, TO REMINGTON TYPEWRITER- COMPANY, or ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MAcHiNE.

Patented Apr. 22, 1913.

Application filed December 23, 1911. Serial No. 667,505.

T ail-whom- 66 may concern:

Be it known that I, VASILI STERN, a sub- 1 ject of the Emperor of Russia, and resident ofGreat Ardynka 7, Moscow, in the Government of Moscow and Empire of Russia, have invented certain new and useful Improvements in Type-VVriting Machines, of which the following isa specification. 1

My invention relates to type arresting mechanism for typewriting machines andits general object is to provide new and improved mechanism of the character speci- To the above and other ends my invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims.

My invention is particularly adapted for use in conn'ectionwith typewriting machines wherein the type bars each are provided with a plurality of types, in which case it frequently happens that one of the type characters is a punctuation mark such as a period while the other character or other characters on the same type bar are figures or letters having much greater printing area or surface. In the case of a period it is desirable to stop the type bar, or a part of its actuating mechanism, by some sort of arresting device, prior to the engagement of the period with the paper, so as to prevent the period from deeply indenting or puncturing'the paper as it otherwise would "be apt to do. Such arresting or stop device would, however, be undesirable in connection with the other type character orcharacters on thc'same type bar with the period as it would be likely to prevent a proper depth of impression being obtained from such other character or characters. Accordingly my present invention provides an arresting or stop device which is in use when the period or punctuation character is being employed but isthrown out of use or ren ,parts in different relationships from those in which they appear in said Fig. 1.

As appears from Fig. 1, the main frame of the'machine comprises a base 1, posts 2 and a to plate 3. b'upported on the uoper part of the main frame are fixed track-ways 4 and 5 which are grooved to receive antifriction rollers 6, said rollers providing bearings for the front and rear bars 7 and S of a 'arriage truck which further includes upright end bars 9 connected by links 10 with the end bars 11 of a platen frame or carrier which further comprises connecting rods 12 and 13. Said platen frame provides bearings for a cylindrical platen 1% which, with the platen frame. is shiftable up and down on the truck to change case by devices which include a roller 15 adapted to run 011 a shift rail 16 supported near its ends on a pair of vertical arms 17, said arms being pivotally connected at their lower ends at 18 to shift levers 19. There are two levers 19 one rigidly secured near each end of a rock shaft 20 journaled in the sides of the base, the lovers 19 terminatingat their forward ends in vertical extensions which are pro-.

upper case types. This shifting movement takes place without disturbing the carriage truck; but during prlntlng movements the truck and the platen frame, which together constitute the platen carriage, move endwise toward the left .as one member, the platen being thus adapted to travel on and with the carriage comprising said truck and said frame for the purpose of spacing between letters or characters. The printing devices comprise printing key levers 23 each provided with a printing key 24 and-fulcrumed on a fixed fulcrum rod 25. Each key lever has an enlargement nearits forward end, the under face or edge '26 whereof is primarily adapted to cooperate with a line locking bar, not shown herein. As will be observed from Fig. 1, the usual front guide comb 27 is so located that its tines or teeth 28 cooperate with the sides of the enlargements on the key levers. Each key lever 23 is connected by devices comprising a link 29, abell crank 30, a second link 3i and a second bell crank 32 with a type bar 33 which is furthermore pivotally supported. and'guided b a third link Each type bar is provi ed at its free end with atype block 35 having two types, a lowercase type 36 and an upper case type 37, said types normally resting against the face of a curved inking pad 38. When'one of the printingkeys 24 is suit:

ably actuated, it o erates through the associate key lever'23, ink 29, bell crank 30, link 31 and bell crank 82 to actuate the connected type bar 33 and cause the lower case type 36 thereon to cooperate with the front face of the platen 14, said type following the path indicated by the dotted line 32 in Fig. l.-

When, however, one of the shift keys 21 is operated to raise the platen to upper case position the upper case type 37 will cotiperate with the platen and the paper thereon.

It has not been deemed necessary to describe the parts hereinbefore referred to at great lengthsince they are common to the I Yost visible machine and do not in themselves constitute my present invention. The

- tegral-with the base 1 (Figs. 1 and 2).

'to by set screws .43. a ts 1 i 45 of; a: rock shaft 46, said rock shaft in turn 4 '55 parts with which said invention is more particularly concerned are detacha'bly support ed on an angular bar 39 which extends from supporting the arresting stops forthe type actuatingmechanism. These arresting de vices or stops proper in the present instance are screws 47 each provided-"with asquared head and a threaded shank which screws vertically downward'in a tapped o ening in the rock shaft 46; A check or ice ing nut '48'co6p'erates with each screw stop 47- and proyides means for permitting the etc to be adjitstably secured at the proper heig t for.

coiip'eration wit. the particularkey lever which said stop underlies. As shown clearly in Fig. 3, the nuts 48 engage slight depres' sions or seats in the top of the rock shat-46,

VVhileaonly one stop device arm 's-e 8111- ployed, I have shown three such in the present instance, and of course the number. maybe varied as desired; These three stops considered from left to right valong the stop barter rock shaft 36 are designed for use in connection with the colon, period and comma keys," respectively, these keys being in turn connected with the'type oars which respectively print the colon, period and comma in lower case. The square heads of the stops 47 normally underlie the associate key levers 23 and are in the path of the' edges 26 on said key levers, the comb teeth 28 insuring that these ed es shall not be deflected" sidewise but shall strike squarely on the screw heads. 7

Connections areprovided between the rock shaft 46 and the case shifting mechanism of the machine, said connections comprising an angular arm or device49 which at its righthand end is threaded, as indicated at 50, to engage in a horizontal tapped opening in the left-hand end portion of the rock shaft 46. A check nut 51 coeperates with the threaded end 50 to secure the arm 49 fixedly to the rock shaft 6. The construction provides for adjusting the arm 49 with respect to the rock shaft, thus variably adjusting' the connections between the'arresting stops and theplaten shifting means. The arm 49 pro ects forward from the rock shaft and is then bent or off-set laterally outward or toward the left and from the end of the ofiset portion is bent vertically upward, the free end of this upwardly bent portion being rounded to provide anose 52 which un- ,derlies the left-hand shift key lever 19 and is adapted to slidably cooperate therewith when said lever is depressed. Normally the nose 52 is maintained in contact withthe under edge or face of said shift lever by a spr1ng'53 which is coiled around the ex tension 45 atthe left of the rock shaft and projects forward at one end toengage in a hole 54 in the offset portionof the arIn %l9f The other end of the spring is hooked over the horizontal lip of the bar 39. The spring 53 serves as a restoring spring for the rock;

shaft and stop devices thereon; and alsoas a positioning device for said stop devices, since the spring normally maintains thenose 52 engaged with the shift leverl9 thusdetermines the normal position of the stops 1-7. v

The arresting devices'f'or'"stops-i4? are so ad usted that when "onecfthe associate,

key levers 23 is'operated in lower cassposig tionthe stop device or edge 26 on said actu: ated key lever will cooperate with. thelstoii 47,- as' shown hyithe dotted lines in Fig, 1 33 e' c'onnected'typeibar and type which instant, t

. meral 7 the 7 of course being the upper block will be in. the lines in Fig. 1 tions and resiliency of the parts enables the lower case type 36 to. move forward under the momentum it has acquired to the platen and print, however, after the connected key lever has been positively arrested as shown. The arresting position illustrated by the dotted lines has been found'by me to be most satisfactory in practice but of course if variation be desired this be readily effected by adjusting the stop 47. By lowering the normal position of the stop, the lower case type, assuming the same to be the period type, will give a deeper impression than would be given by the adjustment shown in Fig. l, and of course a lighter impression will be obtained by aising the normal position of the stop 47.

As will be observed from Fig. 3, the period type in the machine shown herein is associated on 'the type block with the nuposition shown by dotted case type and the period the lower case type. To obtain the best in'ipression from the 7 or upper case type it is desirable that the type should strike the platen without its actuating mechanism being arrested by the stop device 47, and accordingly by reason of the connections including the arm 49 the stop 47 will be automatically rendered in? operative when the upper case or 7 type is broughtinto use. This will be'clearly apparent from a consideration of Fig. 4 which shows the platen in shiftod or upper case )osition. and the t )e bar in rintin l position. From a comparison of Figs, 1 and i it will be understood that when the platen is shifted by depressing one of the keys 21 the left-hand key lever 19 will tie press the nose and the arm 49 and will swing the rock shaft to Forward until the heads of the stops 47 thereon cle..r or are swung forward out of the path of the associate stop devices 26 on the key levers 2i. iccordingly it now any one of the key levers 23. including those associated with stops 47, be depressed, it will swing downward freely and will not be arrested until,

the connected type bar strikes with its upper case type against the front face of the platen or the paper thereon. This tree and i-mobstructed movement of the type bars will continue at printing oieration so long as the platen shitting mech uism maintains the platen in upper case position. The letthand shift lever 19 is preferably associated with the usual or other suitable shift locking devices comprising a spring-pressed lever pivoted at 56 to the .lett-hand lever if) and provided at its upper end with a. locking ltev 57; the lower end of said lever terminating in a book 59 which is adapted to cooperate with a fixed abutment 59 as shown in Fig. t to lock the platen in upper The looseness in the oonneccase position. It will be apparent that the locking devices 55 and 59 also provide means for locking the stops 47 out of operation, as shown inv said Fig. 4. On releasing the shiftdock key 57, the platen shifting mechanism will be restored to the Fig. 1 position; and the stop mechanism including the stops 4E7, stop carrier or rock shaft 46 and connecting armstt) will concurrently be autonot be interfered with; but if necessary said stops will yield slightly to said line locking bar.

It will be observed that by my present invention I provide in combination a platen, type actuating mechanism, a stop therefor,

type varying mechanism (in the present case, platen shifting mechanism) and con-.

necting means between said'varying mechanism and said stop that a key operated type bar provided with two types is combined with a stop for one only of said types; that means are provided for moving said stop out of use when the other type is broughtinto use; that said means is operative automatically by thecase shifting mechanism; that a 'stop is provided cooperative with type actuating mechanism in combination with means for moving said stop into and out of operative position; that said means operates automatically; that the automatic operation is efi'ected in the present instance through connections with the case shifting mechanism; that said connections may be adjusted to vary the action of the case-shifting mechanism on the stop or stops; that astop cooperates with certain of the type bar actuating devices in the present instance, the type bar key lever) to limit the movement of the type bar toward the platen, said stop being normally in' the path of the key lever; that means are provided for moving the stop out of the-path of the key lever; that the stop mechanism embodies means that acts to subdue, soften or regulate the impression of one type on a bar, leaving the other type or types un affected when they are moved to print, the stop thus providing a print subduing or print moderating or regulating means which may be rendered operative or inoperative at each and all letter space positions of the traveling platen; that locking means are provided which lock the type arresting stop out of operation; that the stop is adjus able on a support or carrier to vary its'nori'ual position; and that a plurality of stops (in the present instaneethree'} are. mounted on the ,carr1er,..ell of the stops being moved simultaneously into and' ontiot o eration bythe movement forthe) stopsupport o1' car-' rier, which in the present instance is a rock shafti oontrolled from the platen shifting mechanism oi the machine.

Various 'chang 5 may he made Without departing from the spirit and scope of my invention.

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

1. In a typewriting machinmtho combination of a traveling platen, a set of-independently operative type actuating mechanisms, a print-regulating stop effective on one only of said mechanisms, and means operative at all positions of the traveling platen for moving said stop into and out of operative position.

- 2. In atypewriting machine, the combination of a traveling platen, a set of independ ently operative type actiiating mechanisms, a print-regulatingstop effective on one only of said mechanisms, and means operative automatically at all positions of the travel- -ing platen to move said stop into and out of operative position.

3. In a typewriting machine, the combination of a platen, a set of independent type actuating, mechanisms, stops coiiperative with certain selected ones only'of said mechanisms, there being a single step for each of said selected mechanisms, case shifting .devices, and means connected to said devices for controlling all of said stops.

l, In a typewriting machine, the combination of a platen, type actuating mechanism, a stop for said mechanism normally in op- ,erative position, case shifting mechanism, and means cont-rolled by said case shifting mechanism for moving said stop automatically out of operative position.

5; In a typewriting machine, the combination of a traveling platen, a set of type bars, trains of actuating devices, one for each of said type bars, a print-regulating stop cooperative with a selected train of devices to limit the movement of the-associate type bar ,toward the platen without afiecting the other type bars, and means operative at all positions of the traveling platen for moving said stop into and out of operative position.

6. In a typewriting machine, the combination of a platen, a type bar, actuating de-' vices therefor, a stop coiiperative with certain of said actuating devices to limit the movement of said type bar toward vthe platen, case shifting mechanism, and means automatically operatedby said case shifting mechanism or. moving said stopout Idioperaztive-pcsition.

7 7,. Ina ty rewriting machine, the combinanan eifiwpaten, etype her, actuating (19 ".vicesithereinr, a stop coperative withany tain of said actuating devices to limit the movement of said type bar toward the 9. In a typewriting machine,the combination of a platen, a type bar, a key lever,

connections between said type car and said key lever, a stop normally in the path of said key levcr, case shifting mechanism, and means connected tosaid case shifting mechanism for moving said stop out of the path of said key lever,

10. In aty ewriting machine, the combination of a p aten, a type bar, a key lever, connections between said type bar and key lever, a stop normally in the path said key lever, key controlled platen shifting mechanism, and means operative by the shift key for moving said stop out of the path of said key lever. A

11. In a typewriting machine, the combination of a platen, a type bar, a key lever, connections between said type bar and said key lever, a stop normally in the path of said key lever, said stop being pivotally supported on the frame of the machine, key controlled case shifting mechanism, and devices connected to the shift key for turn-.

actuating devices therefor, a plurality of stops normally limiting the movement of said type blocks toward the platen, and key operated means for'moving said stops out of operative position.

13. In a typeWrit-ing machine, the combination of a platen, a plurality of type bars,

key levers connected, to said type bars, a

plurality of stops, one normally in the path of each of said key levers, and means for moving said stops out ofoperative position.

14. In a typewriting machine, the combination of a traveling platen, type actuating its mechanism, a rock shaft, a print-regulating.

stop for said type actuating mechanism mounted on said rock shaft normally effective, and-means operative at all positions of the traveling platen for turning said shaft to move said step out of operative position.

15. In atypewriting machine, the combination of a, platen, a plurality of type actuat-ing mechanisms, a rock shaft, separate stops one for each of said"type' actuatinginechanisms, said stopsbeing mounted on "said reel-t shaft, and kay'eontrolled means for nation of a platen, a p

turning said shaft to set said stops in and out of operative position.-

16. In a typewriting machine, the combination of a platen, a plurality of type bars, key levers connected to said type bars, a rock shaft, stops on said shaft normally in the path of said key levers, and means for turning said shaft to move said stops out of the paths of said key levers.

17. In a typewriting machine, the combination of a platen, a plurality of type bars, key levers connected to said type bars, a rock shaft, stops on said shaft normally in the path of said key levers, a case shifting key, and connections between said key and said rock shaft.

18. In a front-strike typewriting machine, the combination of a-plurality of type bars, a plurality of key levers one connected to each type bar, a rock shaft underlying said key levers, stops projecting from said rock shaft into the path of said key levers, case shifting devices, and connections between said case shifting devices and said rock shaft.

19. In a typewriting machine, the combination of a platen, type actuating mechanism, a stop cooperative with said mechanism, said stop being normally in position to cooperate with said mechanism when the same is actuated, means for moving said ing means for affording variation of the normal position of said stop.

20. In a front strike typewriting machine, the combination of a plurality of type bars,

aplurality of key levers one connected to each type bar, a rock shaft underlying said key levers, stops projecting from said rock shaft into the path of said key levers,- case shifting devices, connections between said case shifting devices and said rock shaft, and devices for affording variation of the normal position of said stops on said rock shaft. v 21. In a typewriting machine, the combiurality of type bars, a plurality of key levers, one connected to each type bar, a rock shaft underlying said key levers stops projecting from said rock shaft into the path of said key levers, case shift-- ing devices. including a shift key lever, an arm fixed to said rock shaft and underlying said shift key lever, and a spring for maintaining said arm in contact with said lever.

22. In a typewriting machine, the ,combi-, nation of a platen, a plurality of type bars, key levers connected to saidtype bars, a-

rock shaft, stops 011 said shaft and-normally in the path of said key levers, a key, constop out of operative position, and adjust nections between said key and said rock shaft, and adjusting means for affording ariation in said connections.

In a typewriting machine, the combination of a platen, type actuating mechaplaten, means for moving said stop out of operative position, and releasable locklng means for thereafter locking said stop against return movement.

25. In a typewriting machine, the combination of a platen, type actuating mechanism, a stop normally adapted to cooperate with said mechanism, case shifting mechanism, means connected to said case shifting mechanism for moving said stop out of op. eration, and means for locking said stop after it has been so moved out of operative position.

26. In a typewriting machine, the combination of a platen, separate type actuating mechanisms, stops, one for each of saidmechanisms, type varying mechanism, and connecting means between said varying mechanism and said stops.

In a typewriting machine, tl1e combination of a platen, types, key controlled actuating mechanism forsaid types, means for affording stoppage of certain only of said types in theirmovement towardthe platen, type varying mechanism, and connections between said varying mechanism and said means.

28. In a typewriting machine. the combifia-tion of a platen, akey ope 'ated type bar provided with two types, and a stop for one only of said types.

29. In a typewriting machine, the combination of a platen. a key operated type bar of December, A. D. 1911.

VASILI STERN.

Witnesses RIPLEY \ViLsox, \YoLr ARI-REHAB.

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

7 Washington, D. O.

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