US891849A - Type-writing machine. - Google Patents

Description

No.'89 1 ,84.9.. -PATENTED JUNE-30, 1908.

H. W. MERRITT. TYPE WRITING MAUHINE.

APPLICATION FILED OCT. 16,1905.

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PATENTED JUNE 30, 1908. H. w. MERRITT.

- TYPE WRITING MACHINE. APPLICATION FII E D 0OT.16.1906.

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UNITED STATES PATENT oFF oE.

HENRY W. MERRITT, OF

COMPANY, OF

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented June 30, 190a.

Application filed October 16, 1905. Serial No. 283,004.

'brator or carrier, which terms, as used herein,

comprehend any device operable by the printing keys for moving the ribbon to cover and uncover the printing point.

One object of my invention is to rovide an improved construction wherein a 1'1 bon having a plurality of fields of different characterunder the influence of a printing key, be moved to cover the printing point with any desired field of the ribbon.

Another object is to provide means to dispense at will with the crosswise feed of the ribbon in that class of machines em loying a ribbon vibrator and wherein the ribbon has both a crosswise and a lengthwise feed.

An additional object is to provide means for enabling a ribbon of more than one color to be used in the last named class of machines.

Other objects will appear in the course of the following specification.

To the above ends the invention consists in the features of construction, combinations of devices and arrangements -of parts .to be hereinafter more fully described and particularly ointed out in the claims.

In t e accompanyin drawings, Figure l is a vertical longitudina sectional view of a typewriting machine embodying my invention, certain parts of the machine being omitted. Fig. 2 is an enlarged detail view of a part of the ribbon mechanism. Fig. 3 is a front elcvatidh of the machine showing the keyboard sectioned away, parts of the machme being omitted and other parts being broken away.for the sake of clearncss. F ig. 4 is an enlarged fragmentary side elevation of parts'of the ribbon mechanism, certain parts being shownin section. Fig. 5 is a rear elevation of the parts shown in Fig. 4. Fig. 6 is a view corresponding to Fig. 1 but showing certain'of the nuts in different rclatitms from those in whidh they appear in said Fig.

4. Fig. 7 is a rear elevation of the parts shownin Fig. 6.

My invention is shown as embodied in a Monarch typewriting machine, but it is to be understood that it may be adapted to other forms of writing machines.

In the drawings, 1 is the base of the machine support ng corner posts 2 which sustain a top plate 3. Key levers 4 arefulcrumed on a fulcrum plate 5 and each key lever is provided with a restoring spring 6.

Pivoted at 7 to each key lever is' a sub-lever 8, the lower portion whereof coacts with a fixed abutment 9 and the up er end whereof is connected by a link 10 wit a type bar 11. Each type bar is pivotally mounted in a hanger 12 which is one of a series of hangers arranged in a segment of a circle on a segmental type bar support 13. The type bars are normally supported at their outer ends by a segmental type rest 14 and said bars are adapted to cooperate with a' platen 15' mounted in a carriage 16, said carriage being guided and supported by anti-friction balls 17 which cooperate with grooved rails 18 on the carriage and with oppositely grooved rails 19 secured to brackets 20 fixed to the top plate of the machine. A feed rack 21 is mounted on the carriage and normally meshes with a feed pinion 22, the latter being operatively wheel 23.

Adapted to cooperatewith the escapement wheel are feed dogs 24 at the top of a pivoted dog rocker 25, said dog rocker having a horizontally disposed arm 26 which is connected by a link 27 with a universal bar frame 28, the latter being )ivoted in the base of the machine at 29. he frame 28 carries a universal bar 30 which extends from side to side of themachine beneath the series of key levers '4 and'the spacing levers'(not shown) and is adapted to be actuated by said levers when they are depressed during printing or spacing operations. The carriage 16 is connected by a band 31 with a spring drum 32 which tends constantly to draw the carriage across the machine to the left, so that when the universal bar 30 is operated the cscapement mechanism just described is caused to be actuated in a known manner to permit of letter space movements of the carriage.-

Ribbon spools 3.53, arranged above the top plate 3 at each side of the machine and forconneeted with an escapement,

SYRACUSE, NEW YORK, ASSIGNOR TO THE MONAROH TYPEWRITER SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

wardly of the platen, receive a ribbon 34 which, as herein shown, is divided longitudinally. in-to stripes or fields a and?) of different characteristics; for example, the field a may be of one color such as black and the iield b of a different color, as red, or the field a may be copying ribbon and the field I) record ribbon. The ribbon 34 may be fed longitudinally from either spool to the other by any suitable means, that illustrated in the drawings having the general characteristics of the ribbon feeding mechanism of the Monarch machine. Each ribbon spool 33 is carried by and turns with an upright shaft 35 which rotates in a fixed bearing 36 and has secured at its lower end a small beveled gear 37. The gear 37 meshes with a beveled pinion 38 secured to the forward end of a horizontal shaft 39, which shaft carries at its rear end a beveled pinion 40, the latter being adapted to mesh with a beveled driving pinion 41 mounted on a driving or power shaft 42, having its bearings in lugs 43 depending from the top plate. Rotary movement is transmitted to the shaft 42 through beveled pinions 44 and 45, the

pinion 44 being operatively connected with the driving shaft and the pinion 45 being operatively connected with the spring drum 32. It will be understood that each ribbon spool is connected with a gear train like that above described, each of said gear trains being adapted to be actuated from a driving pinion 41 on the driving shaft 42. 1t willfurther be understood that the driving shaft 42 is capable of longitudinal movement andthat the longitudinahposition of said shaft determines which driving pinion 4 I will be in. mesh with its cooperating pinion 40 and which ribbon s ool will be turned to wind the ribbon,

t ereon. 7

Midway between the ribbon spools, the ribbon 34 is threaded tl'irough a ribbon vibrator or carrier 46 which is guided and supported in the upright arms 47 of abracket 48, the latter beingsecured to the top plate by screws 49. The loweriortion of the vibrator 46 is bifurcated and provided with a cross pin. 50 bridging the bifurcation, said pin being engaged by the slotted forward end of an operating lever 51 pivoted at 52 in a lug 53 depending from the under side of the top plate. The rear arm'of the operating lever 51 is formed with an elongated slot 54 and engaging with this slot is a pin or stud 55 secured to the top of a link 56, the lower end of said link being pivoted at 57c) the universal bar frame 28. Near its upper'end the link 56 is provided with a forwardly and downwardly bent arm 58.

The link 56 is adapted to be swung about its pivot 57 in order to cause the stud 55 to move longitudinally in the slot 54 so as to engage the .operating lever 51 at varying distances iron; its 'pivet or inlcrum 52 and thereby to varyt'he tl' t-ow jf the ribbon carrier or vibrator 46.' This swinging or vibratory movement. of the link. 56 is caused by an eccentric member 59 which is slidably mounted on the driving shaft 42 and which is adapted to cooperate with the strap formed bythe link '56 and its bent arm 58. The eccentric member 59 comprises a narrow eccentric working face 60, a tapered or cam portion 61 and a sleeve portion 62, the latter being formed with a circumferential groove or deis here shown an arm 66 having a fork 67 at its lower end and a collar portion (58 at its upper end. The fork 67 at the lower end of the switching member 66 embraces or par tially surrounds the depression 63 in the eccentric member 59.

ber 59 is adapted to he slid longitudinally of the shaft 42 and into and out of cooperative engagement with the link 56 by means of the switching member (56, the collar portion (58 of which is secured to the inner end of a slide rod 69 by a set scerw 70. The slide rod (it) has its bearings in the right-hand lug 43 of the ribbon dr1vm shaft and in a rwhtangled bracket 71 which is secured to the hand end of a rock shaft 77 mounted to turn The eccentric memin the depending bearing arms 78 -of a U.

end to the link 27 of the carriage feeding mechanism, and said spring tends constantly to draw the link 56 rearwardly away from the fulcrum 52 of the operating lever 51.

The outer or right-hand end of the slide rod 69 is provided witli a collar 84 carrying is) I toral plate extending to the left and dow 11 a in 85, which is embraced by the fork of a ifurcated crank arm 86 fixedly secured to the rear end of a horizontally disposed and forwardl f extendim rock shaft 87 Fi s. '2 .l s c,

and 33 The rock shaft 87 extends through and terminates slightly in front of the front plate 58 of the machine. A crank arm 96 is secured by a headed screw 89 to the front end of the rock shaft 87 and is provided with a finger piece or handle 91 and terminates at its free end in a pointer 9'2, said pointer being adapted to cooperate with indicating marks (as the letters N, B and lt) formed preferably on the front face of the plate S8. The rock shaft 87 has its bearii'igs in bearing plates 93 \\hich are secured to lugs 94 which bear the right-hand ribbon feeding sha ft 39, said bearing plates being fixed in place by headed screws 95. A collar 96 is secured to the rock shaft 87 and abuts against the rear face of the forward bearing plate 93, and integral with said collar is a positioning member 97 which, herein shown, is in the form of secwardly from the rock shaft 87 and having its periphery fori'n-cd with depressions or notches 98, 99, 100 (Fig. 2). A detent or locking spring 191 is fixedly secured to the under side of the top plate in any suitable manner and isadapted to engage the depressions or notches in the positioning member 97.

The operation of the mechanism above described will now be briefly explained. Suppose that the parts be positioned as in( icated in Figs. 1, 2 and 3 with the indicator or pointer 92 pointing to the indicating mark N (which means nonnal) on the, front plate 88, the sectoral positioning member 97 will be engaged by the detent 101' and the slide rod 69 will he in its extreme left-hand position with the positioning member 66 causing an engagement or coeperation between the eccentric face 69 of the member 59 and the strap in the link 56. When the parts are so arranged the rock shaft 77 and the crank arms 76 and 81 will, during part of the time, be maintained by gravity in the positions indicated in Figs. 1 and 3, with the crank arm 81 in a substantially vertical position and the crank arm76 in a substan- 'tially horizontal position. During the operation of the macl'nne, however, the rota tion of the eccentric face 60 moves the link 56 progressively towards and away from the fulcrum 52 and will sometimes swing the link 56 far enough rearwardly to cause it toengage with the roller 82 to swing the arm 81 rearwardly to rock the rock shaft 77 and bring the arm 76 very close to the slide rod 69. With the positioning; mechanism arranged as now being considmed, the ribbon will be fed longitudinally and will also be given a variable (;i ).-;S\VlSU feed, so that the type impressions Wlll follow a serpentine or I wavy path lengthwise of the ribbon and we tending from s de to side thereof as is charmachine. If a ribbon of uniform character 1 be in place in the machine, a ribbon having a plurality of fields of different characteristics, such as the ribbon 34, may be substituted for the uniform ribbon in a known manner. Should the mechanism still be allowed to remain in the relations indicated in 5 Figs. 1-3, inclusive, some of the type impressions will now be printed, say in black, others in red, and others partly in black and partly in red, giving a variegated or articolored effect which is sometimes desirable in ornamental typewriting. Usually, however, it is desired to print all the letters of a word or a succession of words in one color.

If it first be desired to print in black alone, the handle 91 is pressed to the right until the pointer 92 points to the letter B (indicating black). on the front plate 88. By this movement the rock shaft 87 is rotated rightward and the notch 99 in the sectoral plate is engaged by the detent 161. At the same time the slide rod 69 is slid rightward in its bearings, causing the member 66 to act on the eccentric member 59 to move the latter rightward along the driving shaft 42 to the position indicated in Figs. 4 and 5, which atter view, it will be recalled, is a rear View. It will be noted that by this movement the eccentric face 60 is disengaged from the strap in the link 56, whereupon the latter is swung rearwardly by spring 83 carrying with itthc crank arm 81. The rearward movement of the link 56 continues until the rotation of the rock shaft 77 by the crank arm 81 brings the crank arm 76 into contact with the sliding rod 69, thereb preventing further movement of the cran arm 81 and the link 56. During subsequent printing 0 erat-ions the link 56 will be maintained wit the stud 55 at the rear of the slot 54 in the operating lever 51 and as far as possible from the fulcrum 52 of said lever. The link 56 as it roller 82 at the end of the crank arm 81. The

;wit h the stud 55 maintained at the rear of {the slot 54, the operating lever will have a constant throw and the ribbon vibrator 'will be moved thereby so as to cause the field a on theplaten. The path of the type impressions will be. in a strai ht line longitudinal of said. field a. It will be noted from an inspection of Fig. 5 that the described sliding movement of the rod 69 has served to bring the cam member 74 close to but not actually in engagement with the crank arm 76. It will further be seen from an inspection of said figure that cndwise movement of the rock shaft 77 in either direction is moves up and down has a bearing on theacteristic of the ribbon feed of the Monarch parts are so arranged and proportioned that or the black field to cover the printing point prevented by the contact of the crank arms' 76 and 81 with the bearing arms 78 of the bracket 79. i

If it be desired to print upon the red field ol' the ribbon, the linger piece 91 is pushed still l'url her to the right until the pointer 92' .rcgisters with theletter R (meaning cated. in Fig. 7, while at the same. time the cam lace 75 of the member 74 contacts with the crank arm 76 and raises th e latter to the circular law 75, rocking the groek shaft 77' 'and swinging the-crank vorrn 8] forward.

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As the crank arm 8] is swung forwardly it pushes the link 56 longitinlinally of the lever 51 against the: force of the spring 83 and causes the stud to engage the slot 54 near its l'orward end and close to the fulcrum 52 ol the operating lever. The parts will now be positioned. as indicated in Figs. (5 and 7, and during the operation of the machine the link 56 will be moved up and down against the roller 82, and the position of the stud 55 in respect to the iulcrunr52 will not vary appreciably. Qonserpiently the throw communicated to the ribbon vibrator by the operating lever 51 will be a constant one; and tie parts are so proportioned and adjusted that this constant throw will cause the field I) or red held of the ribbon to always be brought to the printing point. The path of the type impressions wil tudinal of said red lield b.

By reversing the operations above 1 described the black field or the entire surl'aeeol' th.e ribbon may again be brought into play as desired.

ltwill be noted that in my in'iproved con struction otribbon leeding mechanism l cmploy a single operating lever and a single link which is in constant engagement with said lever; that the link is moved longitudinally of the lever by both the eccentric member 55) and the member 'eomprising the rock shaft 77 and the crank arms 76 and Slflvhich last member is in ell'cct'a bell crank lever (omprising? arms 76 and 81 and an elongated pivot 77; that the bell crank member positions the link 56 indepmidcntly ol' the member 5!), said bell crank member being inoperative when the eccentric member 5.) is operative, and operatiw: when said eccentric member is inoperative.

By my invention 1 provide devices ol sim- )lilied and improved constructionfor )erornri ng the various functions hcreinbel'ore follow a straight line longiset forth and it is to be understood that various changes may be made Without departing from the spirit and scope of my inventlon.

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

1. .[n a typewriting machine, the combination oi a ribbon vibrator; a single lever for operating the same; a link; means for causing said link to operate automatically upon said lever at progressively increasing and decreasing distances from the fulcrum of said lever; means for throwing said automatic means out of operation; a cam operable by said last recited means; and means operable by said cam for positioning said link longitudinally of said lever independently of said automatic means.

2. In a type\'\'riting machine, the combination of a ribbon vibrator; a single lever for operating the same; a link; means for causing said link'to operate automatically upon said lever at progressively increasing and decreasing distances from the fulcrum of said lever; means for throwing said auto matic means out of operation; a cam oper able by said last recited means; and means operable by said cam for positioning said link longitudinally of said lever, said last named means being operative when said automatic means is inoperative.

3. in a typewritiug machine, the com} bination of a ribbon vibrator; a single lever for operating said vibrator; a link; means for causing said link to operate autrnnatically upon said lever at progressively increasing and decreasing distances from the fulcrum of said lever; handactuated means for throwing out of operative relation said autoimatic means; a spring constantly tending to draw said link away from the fulcrum of said;

lever; a cam operable by said hand actuated means; and means operable on said link to force .it towards the fulcrum of said lever against said spring, said last named means being operative when said automatic means is inoperative.

4. .In a typewriting' machine, the combination of a ribbon vibrator; a single lever for operating said vibrator; a link; means l'or causing said link to operate automatically upon said lever at progressively increasing and. decreasing distaneeslroin the fulcrum of ,said lever; hand actuated means for throwing out of operative relation. said auto matic means; a s )ring mzerable to draw said link away from the tulei um o'l said lever; a cam operable by said hand actuated means; and means operable by said cam to force said link towards the fulcrum of said lever.

5. in a typewriting machine, the combinationot a ribbon vibrator; a single oper-- ating lever therel'or a single link adapted to actuate said lever; an eccentric member adapted to control the position of said link longitudinally of said lever; hand actuated means for controlling said eccentric member; a rock shaft operable by said hand actuated said rock shaft to position said link longitudinally of said lever when said eccentric member is inoperative,

6. In a typewriting machine, the combination of a ribbon vibrator; an operating lever therefor; an actuating link for actuating said lever and moving said vibrator to and from the printing point; a rock shaft; hand actuated means operative to rock said shaft; and means operative by said rock shaft for positioning said link longitudinally of said lever to vary the length of the lever arm. I

7. In a typewriting machine, the combination of a ribbon vibrator; an operating lever therefor; a link adapted to actuate .saidlever; an eccentric adapted to control the osition'of said link longitudinally of said ever; hand actuated means for rendering said eccentric ino erative; a rock shaft operative by said han actuated means; and

- a crank arm operative by said rock shaft to move said lin when said eccentric is ino erative.

-'8. ha t ewriting mac inc, the combination of a rifiiion vibrator; an operating lever therefor; a link adapted to actuate said lever; an eccentric adapted to control the position of said link longitudinally of said lever; hand-actuated means for rendering said eecentric inoperative; a cam 0 erative by said hand actuated means; a roe shaft; a crank arm on said rock shaft operated by said cam; and a second crank arm on said rock shaft adapted, when said rock shaft is rocked by said cam, to move said link longitudinally of said lever.

9. In a t ewriting machine, the combination of a ribbon vibrator; an operating lever therefor; a key actuated universal bar; a link operated thereby to actuate said lever; an eccentric for automatically moving said link rogressive distances longitudinally of said lever; a hand actuated slide rod operative on said eccentric to render it' ino erative; a cam on said slide rod; a rock s raft operable by said cam; and a crank arm 011 said rock shaft ada ted to move said link longitudinally of saic lever.

10. In a typewriting machine, the combination of a ribbon vibrator; an operating lever; a key actuated universal bar; a link engaging .said lever and operative by said universal longitudinally of said lever a cam on said slide rod; a rock shaft operable by said cam; and a crank arm on said rock shaft adapted to move said link against the force exerted by said spring.

11. In a typewriting machine, the combina tion ofa ribbon vibrator; an operating lever; a key actuated universal bar; a link 0011- neeted therewith and with said operating lever; an eccentric automatically 0 erative on said link to move it progressive istances longitudinally of said lever; a hand actuated slide rod adapted to render said eccentric inoperative; a cam on said slide rod; and a bell crank lever one of the arms whereof is adapted to be operated by said cam and the other arm whereof is operable on said link.

12. In a typewriting machine, the combination of a ribbon vibrator; an operating lever therefor; a link for actuating said lever; an eccentric for moving said link longitudinally of said lever; hand actuated means for rendering said eccentric inoperative; a cam operable by said hand actuated means and a bell crank lever operable by said cam and o erative on said link to move it longitudinalfy of said lever When said eccentric is inoperative.

13. In a typewriting machine, the combination of a ribbon vibrator; an operating lever; an actuating link therefor; a strap, on said link; an eccentric ada ted to cooperate with said strap; a slide rorFoperative on said eccentric; a cam on said. slide rod; a bell crank leveroperated by said cam and operable on said link; a rock shaft operative on said slide rod; and a finger piece on said rock shaft.

14. In a typewriting machine, the combination of a ribbon vibrator; an operating lever; an actuating link therefor; a strap on said link; an eccentric ada ted to cooperate with said strap; a slide ro operative on said eocentric; a cam on said slide rod; a bell crank lever o erative by said cam and operable on said lin r; a rock shaft operative on said slide rod; a crank arm on said rock shaft at the front of the machine,said crank arm being provided with a handle and with a pointer; and an indicatiru device with which said pointer is adapted to cooperate.

15. In a typewriting machine, the combination of a ribbon vibrator; an operating lever; an actuating link therefor; a strap on said link; an eccentric ada ted to cooperate with said strap; a slide ro(l operative on said eccentric; a cam'on said slide rod; a bell crank lever o erative by said cam and operable on said linli; a rock shaft operative on said slide rod; a sectoral positioning plate on said rock shaft; anda spring detent ada ted to cooperate therewith to maintain sait rock shaft 1n any one of a plurality of predetermined positions.

- l 16. In a typewriting machin the combinatherefor; an actuating link for actuating said lever and moving said vibrator to and from the printing point; a bell crank lever; and hand actuated means operative to vibrate said bell crank lever, said bell crank lever be ing operative to move said link longitudinally of said 0 erating levemin one direction to vary the ength of the lever arm.

17. In a typewriting machine, the combin ation of a ribbon vibrator; an operating lever therefor; an actuating link for said lever; a bell crank lever; hand. actuated means operative to vibrate said bell crank lever said bell crank lever being operative to move said link longitudinally oi said operating lever in one direction; and a spring constantly tending to move said link in the opposite direction. 1

Signed at Syracuse, in the county of Onondaga and State of New York, this 13th day of October A. D. 1905.

HENRY W. MERRITT.

lVitnesses:

H. ABUMENT, W. J. LOGAN.

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