US1792557A - Typewriter attachment - Google Patents

Description

' Feb. 11, 1931. H, J TYNAN 1,192,557

TYPEWRITER ATTACHMENT Filed April 19. 1929 2 Sheets-Sheet 1 INVENTOR 'HEEI BY J. TYNAN 3 Z ,4 Er raham Feb. 17, 1931,. H. J. TYNAN 1,792,557

TYPEWRITER ATTACHMENT Filed April 19. 1929 2 Sheets-Sheet 2 lNVEbIlTOR 1 HENRY J.TYNANY ATTORNEY Patented Feb. 17, 1931 UNITED AT S HENRY J. TYNAN, or nrnenwoon, new JERSEY OFFICE TYPEWRITER ATTACHMENT Application nee April 19,

- This invention relates to typewriters and tion of the typewriter are not altered or dis turbedin any manner.

A further object is to provide a simple and efiicient attachment for the paper roll and so related to the machine and the platen carriage or the platen shift frame in the platen carriage that it can be very easily andquick- 1y applied thereto .and detached therefrom when desired. Y

A further object is 'to provide such a mechanism in the form of an attachment and in such manner that the paper feed will be even and smooth and the steady relation of the paper with the platen maintained at all times.

A still further object. is to provide that the movements of the platen carriage will be normal and that the force or pressure required to move the platen through the intermediary of the shift key will not be increased.

Still another object is to so relate the paper support and the platen carriage that the support can be applied and detached from the machine without disturbing any of the normal and standard parts whatsoever.

Further and more specific objects, features, and advantages will more clearly appear from the detailed description given below taken in connection with the accompanying drawings which form partofthe specification, which illustrate one embodiment of the invention, and in which,

Fig. 1 is a somewhat diagrammatic side elevation of the invention applied to a typewriter;

Fig. 2 is a plan view thereof; Fig. 3' is a rear elevation; and, V

Fig. 4 is a'somewhat diagrammatic side 1929. Serial 1%. 356,389.

elevation of a'modified form of the invention, wherein a number of rolls are used.

The invention generally considered com? prises a roll of paper which is supported independently of the movable platen of the typewriter but preferably from the typewriter frame. l he roll is'mounted on a movable carriageand frictional connections extend from the roll support tothe platen carriage or. to the platen shift frame in the carriage so that when the platen carriage moves, the roll support moves also in a horizontal plane but the frictional connection is such as to permit the platen carriage to be shifted vertically withoutlifting the roll support therewith.-

More specifically, to the rear-of the typewriter frame there are attached bracket members supporting a track upon whicha wheeled truck or frame is guided in movement parallel tothe path of movement of the platen carriage. On this truck are vertical pedestals or arms adapted to removably receive the roll of paper and from this truck extend flexible fingers whichbear withfslight fric tion against the oppositeends of the platen carriage so that as the platen carriage moves, the roll truck is moved also along its track.

Because of the frictionalengagement of the fingers with the ends of the platen carriage, however, the platen can move freely up and down withoutmoving the roll support therewith ,and consequently the shift, pressure is not appreciably increased. 7 I

Itis apparent that the roll support should preferably be supported from the typewriter frame so that the whole assemblage will occus py the minimum of space. It is obvious that theroll support must not 'be carried by the platen'carriage for that would increase the shift pressure too greatly. With most operators having an even touch, if they hit'the key hard enough to shift both the platen carriage and the roll support, then they would hit the regular keys too hard. If they hit the regular keys with the proper force,

then they would be hitting the shift key with insufficient force. By having the roll support carried by means other than the platen carriage, this discrepancy is avoided. By having the paper roll support close to the platen and moveable therewith, altho separately supported, the angle of the paper on the platen is kept steady, and consequently in proper alinement at all times as is highly desirable. If the roll support did not move and were close to the typewriter, then this would cause the angle of the paper to change as the platen moved, and the writing would be out of alinement, whereas if the roll sup port were moved back a sufficient distance from the typewriter to avoid this change in angle of the paper, then the whole apparatus would take up entirely too much room and the device would be too'clumsy.

Therefore, by having the attachment mounted on the frame of the typewriter, space is saved; by having it mounted separately from the platen carriage, the usual shift pressure is maintained; by having light frictional contact between the paper roll support and the platen carriage, joint horizontal movement is insured and free vertical movement of the platen carriage independent of the paper support is permitted. Thus the paper is always kept in alinement and the operation of the typewriter is not otherwise modified. This attachment is especially for using rolls of checks made up for the expeditious preparation of pay-rolls and the like. The invention is adapted for use with single copies or with multiple copies with intervening carbon paper employed as will be herein after described.

Referring to the drawings in which the present preferred form of the invention is clearly set forth, it will be seen that to the rear of the typewriter frame 10 are attached two spaced bracket plates 11 and 12 having horizontal portions 13 and 14., supporting spaced track bars 15 and'16. Pairs of wheels 17 and 18 are adapted to run along these track bars 15 and 16 and are mounted on the ends of shafts 19 and 20, fastened to the under side of a frame-plate 21 disposed above the track bars 15 and 16 and having at its ends upright arms 22 and 23. Arm 23 is apertured to receive the end pin of a roll of paper 24, whereas arm 22 is provided in the usual manner with a slot 25 so that the other end pin of the roll 24 can be slid into the slot 25 from the side and rest therein while the paper is being unrolled from the carrier.

The frame plate 21 has dependent ears 26 and 27 adjacent the pairs of wheels 17 and 18 which depend into and between the opening or channel formed between the track bars 15 and 16 to act as guides for the roll frame and to keep it in alined movement preferably parallel to the motion of the typewriter platen carriage 28, on which is supported the platen 29. A pair of flexible fingers 30 and 31 are fastened at one end to the ends of the frame plate arms 22 and 23 and extend forwardly to bear with light friction against the ends of the platen carriage 28. Preferably felt or rubber pads 32 and 33 are disposed between the ends of the fingers 30 and 31 and the adjacent walls of the carriage.

It will be seen that horizontal movement of the platen carriage due to the operation of the keys will cause the paper roll to travel therewith by reason of the flexible connecting fingers 30 and 31, but that when the shift key 34 is operated, the platen carriage will be lifted without lifting the paper roll 29 and without increasing the shift pressure. Furthermore thevweight of the paper roll and its support is taken entirely upon the track bars 15 and 16 and the friction of movement of the paper roll and its support is very small. The paper 29 can be quickly lifted out of the arms 22 and 23, and that the entire frame plate 21 with the wheels 17 and 18 and fingers 30 and 31 can as readily be lifted away from the typewriter leaving thereon, merely the bracket members 11 and 12.

It is understood that more than one roll can be supported back of the machine, for ezfample, in Fig. i an extra roll 35 is shown supported on the arms 22 and 23 and this can be employed when it is desired to make carbon copies. The carbon sheet can be inserted separately or carried on still another roll not shown. It will be also understood that the roll support instead of being arranged to rest on the track bars 15 and 16, may be in any suitable manner, hung or suspended from a track of the same general type which is fastened to the'back of the machine.

The device is therefore simple, compact, easily applied to and removed from the typewriter and works therewith without in any serious manner disturbing the normal working of the typewriter mechanism itself.

\Vhile I have described my improvement in detail and with respect to a preferred form thereof, 1 do not desire to be limited to such details or form since many changes and modifications may be made and the invention embodied in other forms without departing from the spirit and scope of the invention in its broader aspects. Hence I desire to cover all modifications and forms coming within the language or scope of any one or more of the appended claims. v

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

1.. In combination with a typewriter having a platen carriage and a platen shift frame therein, a paper roll, a support for said roll independent of the carriage, means for. moving the roll along the support, and flexible connections from the'roll-support and frictionally bearing againstthe ends of the platen shift frame to cause their joint movement in a horizontal plane. 7

2. In combination with a typewriter having a platen carriage and a platen shift frame therein, a paper roll a support for said roll independent of the carriage, means for moving the roll along the support, andflexible fingers extending from the roll-support and fric-' tionally bearing against the ends of the platen shift frame'to cause their joint movement in a horizontal plane and permitting the independent vertical movement of the platen shift frame.

3. In combination with a typewriter having a platen carriage and a platen shift frame therein, a track supported from the frame of the typewriter, a roll-frame adapted to be supported on said track, means on said frame and engaging'said track to guide the frame thereon in a predetermined direction, and flexible fingers extending from the frame and bearing frictionally against ment in a vertical plane of the platen carriage, and flexible pads disposed between the ends of the fingers and the platen carriage.

In testimony that I claim the invention set forth I affix my signature hereto.

' HENRY J. TYNAN.

the ends of'the platen shift frame to cause -'1 their joint movement in one plane and'perinitting the independent movement of the platen shift frame in another plane.

4:. In combination with a typewriter having a platen carriage, a slotted track supported from the frame of the typewriter, a roll-frame adapted to be supported on said, track, ears on said frame extending into said slot to guide the frame along the track in a predetermined direction, and means connecting the frame with the carriage to cause their joint movement in one plane.

5. In combination with a typewriter having a platen carriage, a slotted track supported from the frame of the typewriter, a V

roll-frame adapted to be supported on said track, ears on said frame extending into said slot to guide the frame along the track in a )redetermined direction, and means connecting the frame with the carriage to cause their joint movement in one plane and permitting the independent movement of the carriage in another plane.

6. In combination with a typewriter having a platen carriage, a slotted track supported from the frame of the typewriter, a roll-frame adapted to be supported on said track, ears on said frame and extending into said slot to guide the frame along the track in a predetermined direction, and fingers on said frame extending to and frictionally bearing against the ends of the platen carriage to cause their joint movement in a horizontal plane and permitting the independent movement in a vertical plane ofthe platen carriage. V

7 In combination with a typewriter having a platen carriage, a slotted track supported from the frame of the typewriter, a roll-frame adapted to be supported on said track, ears on said roll-frame and extending into said slot to guide the roll-frame along

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