US776852A - Paper-feed mechanism for type-writing machines. - Google Patents

Description

No. 776,852. PATENTBD DEC. 6, 1904.. G. M. KITZMILLER.

PAPER FEED MECHANISM FOR TYPE WRITING MACHINES.

APPLICATION FILED MAY 4. 1904.

N0 MODEL.

ll'llli UNiTEn STATES Patented December 6, 1904.

PATENT OEEIcE.

GEORGE M. KITZMILLER, OF NORFOLK, VIRGINIA, ASSIGNOR TO ELEC- TRIO TYPEVVRITER COMPANY OF NORFOLK, INCORPORATED.

PAPER-FEED IVIECHANISIVI FO FI TYPE-"WRITING MACHINES.

SPECIFICATION forming part of Letters Patent No. 776,852, dated December 6, 1904.

Application filed May 4, 1904. Serial No. 206,329. (No model.)

To all whom it nmg (JOII/(XHVL:

Be it known that l G uoaen M. KITZMILLER, a citizen of the United States, residing at Norfolk, in the county of Norfolk and State of Virginia, have invented new and useful Improvements in Paper-Feed Mechanism for Type- Writing Machines, of which the following is a specification.

My invention relates to paper-feed mechanism for type-writing machines by which the paper is held to the platen and released therefrom, as will be more fully described hereinafter.

Referring to the drawings, Figure 1' is an end elevation of the platen end pieces or supports, showing the operating lever or arm. Fig. 2 is an end elevation of the same with the platen-supports or end piecesremoved to more clearly show the mechanism. Fig. 3 is a plan of the paper-feed rollers and cradle. Fig. tis a side elevation of the front or paperguide roller. Fig. 5 is a plan of the same.

All parts not pertinent to my invention have been omitted.

In the drawings like reference-numerals indicate corresponding parts in all the views.

1 is the carriage of the machine.

2 is the platen.

3 is the platen-support or end piece.

1 is the platen shaft or axis. l

5 represents the paper-feed rollers supported upon the arched or curved cradle 6, Fig. 1.

7 is a joint for the supporting-rod 8, which is attached to the cradle 6. The verticalsupporting-rod 8 is roekably fastened to the presser arm or lever or rod 10 at 9 and is yieldably supported, so that it will cause the cradle 6 and rollers 5 to adjust themselves to the platen.

11 is a lug on the presser or releasing arm 10, which passes through the slot 20, Fig. 1, and forms an attachment-point for the curved operating arm or lever 12 and is secured thereto by the pivot or joint 23.

13 is a spring-controlled rod placed on the carriage in the direction of its width, forming an axis for the lever or arms 10. The

rod 13 is partly inclosed by the spring 14,

one end of which is fastened in the rod 13 at 21 and the other under the presser or releasing arm, as at 22, Figs. 2 and 3, and keeps the releasing arms or lever 10, cradle 6, and rollers 5 in an elevated position or normally exerting pressure on the platen 2. A depression on the button 19 causes the curved lelevcr or operating-arm 12 to push downward and releases the roller and cradle from pressure on the platen when adjusting the paper for printing.

The lever 12 has a curved portion 12, Fig. 1, in order to allow it to go around and pass the center or axis 4 of the platen 2. The upper and lower portions of the lever 12 are at right angles to each other.

15 represents bearings on the carriage 1 for movablysupporting the rods 13 and releasingrods 10.

17 represents the feed-roller rods or shafts and are attached at both ends to the curved or arched arms or cradle end pieces 6, the whole forming a yieldable cradle for the rollers, as shown in Figs. 2 and 3. i

2 1 represents paper-guide rollers and are placed in front of the platen 2 and above the striking-point of the type-bars.

represents rods or spindles for the guide rollers 24 and have flattened ends, Fig. 1, in order to admit of a pin for a joint upon the supporting lug or bracket 26, which is fastened to the platen-support or end piece 3 by the screw 27 or other suitable manner.

29 is a fulcrum-point for the curved operating-lever 12.

30 is a pivot for the lower end of the operating-lever 12, so as to accommodate itself to the oscillations of the curved portion when the lever is depressed.

31 is a stop-lug on the platen-support or end piece 3 to prevent the lever 12 from having too great a stroke.

The guide-rollers 24 have jointed spindles. as at 28, to enable them also to he lifted vertically out of contact with the platen when adjusting the paper.

I am not confined to the use ofxfour rollers, as shown in Fig. 3; but 1 may use more or less, depending on the length of the rollers and of the platen, though I prefer to use shorter rollers and more of them rather than have them too long. The lug 11 extends through the slot 20, Fig. 1, so as to more conveniently attach the operating-lever 12 thereto, as has been already explained. I am enabled to place the rollers 5 at any point on platen 2, as the curve 12*, Fig. l, admits of a clearance around the axis or shaft 4 of the platen.

I am not confined to the precise arrangement herein shown, as I may modify the present arrangement without departing from the matter herein claimedas, for example, I may cause the rollers 5 to rotate on the shafts or rods 17 or the rollers 5 may be fixed and the rods rotate, according to circumstances. I may also place the paper-guide rollers A upon a convenient point on the carriage bed or frame instead of upon the platen end pieces or supports 3.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In apaper-feed mechanism for type-writing machines, the combination with a paperplaten, of a spring-pressed cradle, a plurality of dependently-movable rods or shafts parallel with the platen, a plurality'of rollers mounted on the said rods, a plurality of arched or curved end plates or bars adapted to support the said rods, a movable rod parallel to the platen provided with arms, a lever-actuated link connection for releasing the spring-pressure of the cradle and rollers upon the platen, substantially as described.

2. In a paper-feed mechanism for type-writing machines, the combination with a movable platen, a platen shaft or axis, of feed-rollers, a spring-pressed roller-carrying yoke or cradle, a plurality of arched supports for the said feed-rollers, a series of vertically-movable spring-pressed rods or releasing-arms supporting the said cradle, a lug or projection on the said arm, a pivoted releasing-lever provided with a curved arm, a link pivotally connected thereto and to the said lug or projection and adapted to actuate the cradle and release the rollers from pressure on the platen, as described.

3. In a paper-feed mechanism for type-Writing machines, comprising a platen, a platen axis and support, a yieldable spring-pressed cradle, a plurality of rods parallel with the platen forming the transverse elements of the said cradle, a series of curved bars supporting end elements of the said cradle, a vertical pivoted arm for supporting the said cradle, aplurality of normally spring-pressed horizontal vertically-movable presser and releasing arms, a lever carrying a curved arm the said lever being pivotally connected to the said platensupport, a lug or projection on the said presser and releasing arm, a slot or aperture in the said platen-support, and means for fastening the said curved lever to the said lug or projection, as described.

4:. In a paper-feeding mechanism for typewriting machines, the combination with a platen, a platen shaft or axis, a platen-support, a plurality of feed-rollers, a verticallymovable roller-carrying cradle, a rod beneath the said platen, a plurality of horizontal vertically-movable spring-pressed arms rigidly secured to the said rod, aspring on and around the said rod and under the said horizontal and vertically-movable arm, a plurality of curved bars or plates forming the said cradle for supporting the roller-carrying rods, a plurality of paper-guiding rollers and spindles, the said spindles being provided with flattened ends and adapted to be moved from the platen, and a pivoted joint on the said flattened ends, substantially as described.

5. In a paper-feed mechanism for type-Writing machines, the combination of a platen, a platen axis and support, a plurality of feedrollers, a feed-roller-carrying cradle, a plurality of horizontal vertically-movable springpressed arms, a bar or rod for connecting the said cradle and the arms, a pivoted curved operating-lever, a torsional spring for maintaining an upward tension of the cradle and feed rollers on the platen, means for compressing the spring by the said curved lever, a plurality of jointed horizontal platen-pressing vertically-movable paper-guide rollers, and means for moving the said jointed guide-rollers from the platen,substantially as described.

6. In a paper-feed mechanism for type-Writing machines, the combination of a rotative platen, a series of roller-carrying parallel rods, arched supports connecting the said rods, a spring-pressed rod provided With horizontal vertically-movable arms, a vertical rod at right angles to the said arms, the said vertical arms being pivotally connected to the said arms and arched support, a lug or projection on the said arm, and lever means for removing the pressure on the rollers, substantially as described.

In testimony whereof I have hereunto affixed my signature in the presence of two subscribing Witnesses.

GEORGE M. KITZMILLER.

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