US843248A - Type-writing machine. - Google Patents

Description

' PATENTED FEB. 5, 1907.

J. A. WHBRRY.

TYPE WRITING MACHINE. APPLICATION FILED SEPT. 28. 1906.

Awe/17;" c/O AH 12 HI? en y.

UNITED STATES JOHN A. WHEltRY, OF NEW PATENT OFFICE.

ORLEANS, LOUISIANA, ASSIGNOR TO UNDER- WOOD TYPEWRITER COMPANY OF NEWV YORK, N. Y., A CORPORATION ORNEW JERSEY.

TYFE-WRlTlNG MACHINE.

Patented Feb. 5, 1907.

' Application filed September 28, 1906. Serial No. 336,631-

lb Hui/1 0111 it may comm/wt:

Be it known that 1, JOHN A. WnERRY, a citizen of the United btates, residing in New Orleans, in the parish of Urleans and State of Louis ana, have invented certain new and useful improvements in 'lype-writing'iuachines, or which the following is a specificatlon.

This invention relates to the ribbon-vibrating devices or type-writing machines.

the object or the invention is to provide simple, inexpensive, and easily-applied and other-arse improved means for shifting the ribbon relatively to the printing-point so as to cause the type impressions to be made along either edge of the ribbon, especially Where the edges are differently colored.

Accordmg to my invention 1 substitute for the single-precc-nbbon carrier which is usual in the Underwood and other writing-machines a ribbon-carrying member comprising two parts, the lower of which engages the usual vibrating lever and the upper or which carries the ribbon and slides up and down upon the roller to bring dill'ercnt edges of'the ribbon over the printmg-point, the extent 01 throw of the ribbon at ihe'type-stroke's being the same in all cases. Upon said ribbon-carrying member 1 provide a third part, which is ad ustable to en'ect the shifting of the upper or ribbon-carrying part, and this third men1- her is controlled by means of a finger-piece mounted upon the framework, so that by cover the printing-point.

moving the linger-piece in either one direc tion or the other the ribbon is shifted to bring one color or the other into use.

Other features and advantages will hereinafter appear.

in the accompanying drawings, Figure l is l a rear perspective view of a part of the Underwooc trout-strike type-writing machine provided with my improvements, the parts bemgadjusted to bring the lower color-band of the ribbon over the printing-point.

big.

portion of the ribbon covering the printingpoint, according to the adjustment seen at big. 4. big. 61s a view similar to big. 5, but showing the lower edge of the ribbon cover-- ing the printing-point, according to the adjustment seen at-l ig. 1.

Lower-case and upper-case types 1 and 2 are mounted upon bars 3, pivoted upon a rod 4, to strike against the front side or a platen 5. The bars are mounted in a segment 6, connected to a framework 7 and having a type-guide 8, the type-bars having heels 9 to push rearwardly acurved universal bar 10, llXed upon a horizontal moving frame 1 1, the latter having an arm 12, slotted to engage a wrist 13, provided upon a forwardly-extending lever 14, which vibrates up and down at every type-stroke. Saidlever is mounted upon a bracket 15, secured upon a rail 16. bpon said rail runs a roll 17, belonging to a traveling frame (not shown) which carries the platen 5. Said rail and platen-frame are shiftable up and down with'thc platen to enable the din'erent types 1 and 2 to print. As so far described the parts are in common use upon the Underwood type-writing machine. The usual biclnome-ribbon, having an up per color-band 18 and a lower color-band 19, -1S tln'eaded through eyes 20 in a ribbon-carrier (designated generally as 21) and provided with a vertical shank 22, which is inserted in a socket formed by bending ears 23 upon the upper end of a stem 24, so that said ribboncarrier can slide up and down upon said stein. At its lower end the latter is detachably pivl oted at 25 to the forward end of the vibrating l lever 14, so that the stem is caused toreciprocate by the vibrations of the lever.

A plate 26, having a cam edge 27, is mount ed to slide horizontally across the reciproeating stem 24, being for this purpose held in 1 suitable ears or socket-pieces 28, whereby the member 26 is caused to reciprocate up and down at the type-strokes with thestcm 24.

21s a view of the lowerot the two parts, which l The. sliding movements of the member 26 are togetherform the ribbon-carrying member. i limited by a pin 29, projecting through a slot big. 3 is a side sectional elevation illustrating 30 in said part 26. The cars 28, as well as the ribbon as brought up to cover the print- 1 said pin, are provided upon cross-arms 31 32, ing-point. Fig. 4 1s a rear elevation, partly formed upon the lowcrportion of the stem-24. in section, of the ribbon-carrying member, At l ig. it-tho shank 22 of the carrier .21 is showing the same adjusted in such ainanner seen resting upon the slide 26, so that the as to cause the upper portion of the ribbon to Fig. 5 1s a fragmentary side elevation illustrating the upper latter serves to transmit upward movement from the stem .24 to the carrier 21, the latter returning with the stem 24. to normal position during the movements of the type-bars away from the platen. Although the stem 24 is preferably not positively connected to the carrier to return the latter, still it will be understood that the ribbon when elevatedby the carrier exerts a downwardreaction upon the latter, and this downward tendency isv aided by the weight of the carrier, so that it always returns properly to normal position. When the slide 26 is moved to the left at Fig. 4, the cam edge 27 acts ,upon a cam 33, formed upon the lower end of the shank 22,

- to lift the shank relatively to the stem 24, as

atFig. 1,-in which position the lower colorband 19 is brought into use at the typestrokes. This movement of the slide 26 is efiected'by-a finger-piece 34, provided upon the end of a slide or rod 35; supported by brackets 36 and having at its inner end a downward-extending finger or part 37 to engage an eye or ppojection 38, provided upon the slide 26. hen the finger-piece 34 is pulled out, Fig. 1, the point or cam 33 of the ribbon-carrier shank 22 rests upon the top edge of the slide 26 and maintains this position during the actuation of the types. Accidental displacement of the stem 22 is prevented by a pin 38 in the stem 24 engaging a slot 39 in the shank 22. When the ringerpiece 34 is pressed in, the slide 26 is moved to the Fig. 4 position and the ribbon-carrier 21 drops by its own weight, aided by the downward tension on the ribbon, to the Fig. 4 position, thereby bringing the color-band 18 of the ribbon into use at the type-strokes. It will be seen that the device 26 communicates movement during the type-strokes from the reciprocating part 24 to the ribbon-carrier 21 and is adjustable relatively to both said carrier and said reciprocating part, so as to shift said'carrier either toward or away from said reciprocatingpart to cause different portions of the ribbon to overlie the printing-point, and thatthe finger-piece 34 is stationary or inactive during the type-strokes, but is connected to means for effecting relative shifting movements of the parts 21 and 24.

Variations may be resorted to within the scope of the invention, and portions of my improvements maybe used without others.

Having thus described my invention, I claim 1. The combination of a ribbon-carrier, a part which reciprocates at the type-strokes, and a device communicating movement from said reciprocating part to said carrier, said device being adjustable relatively to both said carrier and said reciprocating part and having the form of a cam to shi't't said carrier relatively to said reciprocatingpart to cause a diit'erent portion of the Width 6f the ribbon to overlie the printing-point. 2. The combination of a ribbon-carr ier, a

reciprocating support upon which the carrier is mount ed, and a cam engaging said support and said carrier for shifting the latter upon the support to cause a different portion of the ribbon to overlie the printing-point.

3. The combination of a ribbon carrier having a shank, a reciprocating ste'm having a socket to receive said shank, a cam mounted to slide transversely upon said'shank to adjust said ribbon-carrier, and a stop for limiting the movement of" the cam.

4. The combination of a ribboncarrier having a shank, a reciprocating stem having a socket to receive said shank, a cam mounted to slide transversely upon said shank to adjust said ribbon-carrier, a stop for liniting the movement of the cam, and a finger-piece mounted upon the franting, and stationary during the reciprocations of said member, but connected to said cam for shifting the same. a

5. In combination, a reciprocating memrooation, and loosely connected to said projection.

6. The combination of a ribbon-carrier, a reciprocating support upon which the carrier is mounted, a cam interposed between said support and said carrier to shift the latter upon the support to cause diflorent portions of the ribbon to overlie the p1inting- )oint,

said cam reciprocating with said support and said can ier, and a finger-piece mounted upon the fran ewoik and loosely connected to said cam for shifting the latter.

7. ,The combination of h aving a shank, a reciprocating stein having a socket toreceive saidshank, a cam engaging said shank and said carrier for sliding the shank upon the cart ier, a stop for limiting the shitting movement of the cam, said cam mounted to reciprocate with said stem and carrier, a slide niounted upon the framework and having a finger-piece and movable across the line of reciprocationof said stem, and having a finger or part extendingparallel with the direction ofniovenzent of said stem, and an eye upon said cam to engage said finger.

. .J. A. WHERRY. Witnesses:

L. A. DUROS, PETER STIFFT.

a ribbon-carrier

Images