US1027488A - Type-writer ribbon-carrier. - Google Patents

Description

M. H. Locxwoon'. TYPE WRITER RIBBON CARRIER. "APPLIOATIOII FILED DBO. 1, 191 1.

VIN-YENTOR ATTORNEYS Patented may 28, 1912.

UNITED STATES PATENT OFFICE.

MABQUI [S H. LOCKWOOD, OF YORK, N. Y., ASSIGNOR TO UNDEBWOODEYPEWRITER COMPANY, OF NEW YORKN. Y., A CORPORATION OF DILIJAVTABE.

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Specification of Letters Patent.

Application filed December 1, 1911. Serial No. 663,307.

' Patented May 28, 1912.

To all whom it may concern:

Be it known that I, MARQUIS H. Loonwooo, a citizen of the UnitedStates, and resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Type-Writer Ribbon-Carriers, of

which the following is a specification.-

My invention relates more particularly to a ribbon carrier which is vibrated to cause the ribbon to cover and uncover the printing point when the keys of the typewriter are operated in the usual manner.

The ribbon carrier shown and described herein is adapted for use in the well known Underwood typewriter but itwill be readily understood that my improvements may be adapted for use in other front-strike visible writing machines. In machines of this character a. narrow ribbon is used, which of necessity must be'rep'laced more or less frequently and more particularly if a two colored-ribbon is used. It is also frequent-1y desirable to-write one class of work with one color or kind of ink or inks 'and another class with an entirely different color or kind of ink in which case the spools and ribbon of one kind are removed and the other substituted therefor. \Vith the ordinary carrier the operator has considerable difficulty in effecting this replacement or exthe ribbon against the paper on the platen;

and a pair of movable arms is mounted ad-.

jacent to the-respective rigid arms so as to form, in con unct1on therewith, a pair of guide eyes for the IlbbOIl. The movable arms are under suitable spring tension, at their "lower ends, acting in such manner that their upper or free ends tend to move in opposite directions until they stand at an angle to their respective rigid arms, thus opening the guide eyes for the convenient removal or insertion of the ribbon. upperends of the rigid arms, above referred known Underwood typewriter.

The

to, are provided with ears which are bent' forward andv inward to form hooks into Wh1ch.the up r ends of the movable arms may be seate and thus close the guide eyes so as to retain the ribbon in place asthe rlbbon carrier is vibrated.

One form of my invention is illustrated in the accompanying drawings of which-'- Figure l is a front elevation of the-carr er wlth the guide eyes closed. Fig. 12 is a similar view representing the guide eyes open as for the removal or insertion of the ribbon. Fig. 3 is a side view of Fig. 2.

The ribbon carrier A is shown separate from the typewriter but its use and-mode B represents the lower end of the carrier which is adapted to be connected with the usual vibrating lever so that in use the ribbon is vibrated to cover and uncover the prlntlng point as the typewriter is operated. The upper end of the carrier is bifurcated to form integral rigid arms O, C,

spaced apart sufiiciently to permit the type to strike between them.

D represents 'the usual ears adapted to hold the carrier in place on it's slide as in the regular construction machine.

In carrying out my improvement I provide each of the rigld arms 0 with'a laterally extending ear E, near the lower ends of the Underwood thereof adapted to locate the lower edge of.

the ribbon. The outer end of the ear Eis bent or rolled forward and inward at E to form a securing means for the spring F, the coil of which preferably surrounds E and has one end F bent inward, radially of the coil, and secured in the rolled end E of the ear E. The other end of the wire forming the spring F is bent upward to serve as -t-he movable arm which, in conjunction with one of the rigid arms 0.,

' forms a guiding eye for-the ribbon and is of operation are fully understood by those familiar with the art and with thewell adapted, under the action of its spring F to stand at an angle to the respective rigid arm 0 as indicated in Fi s. 2 and 3 of the drawings, The upper en of the arm G 'is formed into a loop G to ive it afinished appearance, and is adapted to facilitate the manipulation of the arms G as hereinafter described. The upper ends of the rigid arms C are provided with-laterally extending ears H, each of which. is bent forward and then inward to form a hook H adaptedto receive the upper end-of the respective movable arm G and retain it against the action of its spring in a position substantially parallel to the adjacent rigid arm C .and thus form the guidin eyes for retaining the ribbon K while cover and uncover the printing point in usual manner.

The operation 'of the device is extremely simple and should be readily understood from the drawings. With the ribbon in ing. vibrated to the place the movable arms G will rest in the hooks H as shown in Fig. 1. If it is de sired to remove the ribbon the upper ends Grof the arms are pressed toward each other by the finger and thumb and pulled the carrier as shown in Fig. 2; the arms G are then pinch (1 together or pressed inward and slightly 1 rward and upon being released areallowed to seat themselves inthe hooks H thus'closing the guide eyes over the ribbon and restoring the parts to the condition shown in Fig. 1.

and arrangement of parts may be made without departing from the spirit and scope of my invention, as set forth in the appended claims.

I claim:

1. In a typewriting machine the combination of a ribbon carrier provided with a pair of rigid arms, a pair of movable arms adapted,

in conjunction with said rigid arms, to form guiding eyes for the ribbon, springs connected 'to and acting to urge said movable arms in opposite directions and means for maintaining the movable arms, against the action of said springs, adjacent to the re spective rigid arms to form said guiding eyes. v

2. In a typewriting machine the combination of a ribbon carrier,,bifurcated to form a (pair of rigid arms, a pair of movable arms a apted, in conjunction with said rigid arms, to form guiding eyes for the ribbon, springs integra 1y connected to and acting to urge said movable arms in opposite directions until each assumes a position at an angle to its respective rigid arm, and means for maintaining the movable arms, against .the action of said springs, adjacent to the respect ve rigid arms to form said guiding eyes. o

3. In a typewriting machine the combination of a ribbon carrier bifurcated to form and adapted in conjunction with said rigid to position the lower edge of the ribbon, a

springs connected to the lower ends of said movable arms and acting to urge the upper ends thereof in opposite directions until each osition at an angle to its re-v assumes a spective rigid arm, and means for maintaining the movable arms, against the action of said springs, adjacent to the respective rigid arms to form said guiding eyes.

4. Iii a typewritin machine the combina- I tion of a ribbon carrier bifurcated to form a pair of rigid arms, ears extending laterally from the lower ends .of said rigid arms to position the lower edge of the ribbon, a pair .of movable arms connected to said ears and adapted in conjunction with said rigid arms, to form guiding eyes for the ribbon, springs, integral with the lower ends of said movable arms and acting to urge the upper ends thereof in opposite directions until each arm assumes a position at an angle to its respective rigid. arm, means for securing the ends of the respective springs to said lateral ears and thus connect said movable arms thereto and means for maintaining the movable arms, against the action Various mod fications in the constructionof said springs adjacent to the respective rigid arms to form said guiding eyes.

5; In a typewriting machine the combination of a ribbon carrier bifurcated to form a pair of rigid arms, ears extending laterally from the lower ends of said rigid arms to position the lower edge of the ribbon, a pair of movable arms connected to said ears and adapted in conjunction with said rigid arms, to form guiding eyes for the ribbon, springs, integral with the lower ends of said movable arms and acting to urge the upper ends thereof in opposite directions until each arm assumes a position at an angle to its respective rigid arm, means for securing the ends of the respective springs to said lower lateral ears and ears extending laterally from'the upper ends of said rigid arms,

.bent forwardly and inwardly to form hooks MARQUIS H. LOCKWOOD.

Witnesses: I

Fnrrz Zmonnn, Jr.,

J 01m H. HJLLIARD.

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