US1488247A - Typewriting machine - Google Patents

Description

March 25 1924.

J. B. HOLDEN 'TYPEWRITING MACHINE Filed Sept. 26.

INVENTUH 75% HIE ATTUQNEY Patented Mar. 25, 19241..

*s r'aras JOSEPH B. HOLDEN, OF SYRACUSE, NEW

WRITER OOMPAN Y, 0]? ILION, NEW

YORK, ASSIGNOR TO REMINGTON TYPE- YORK, A CORPORATION OE NEW YORK.

TYPEWRITING MACHINE.

Application filed September 26, 1922. Serial No. 590,647.

To all whom it may concern:

Be it known that I, JOSEPH B. HOLDEN, citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

My invention relates 'to typewriting machines, and more particularly to the ribbon vibrator and associated parts.

In some machines heretofore constructed in which a card guide or line finder was employed, the use of relatively stiff cards, or work sheets ofunusual thickness, forced the line finder into contact with the ribbon vibrator and interfered with the operation thereof. 7

One of the main objects of my present invention is to overcome this difficulty.

A further object of the invention, generally stated, is to provide a simple, inexpensive yet highly efficient vibrator construction that may be readily mounted in place without interfering with or being interfered with by other parts of the machine.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the difi'erent views,

Figure 1 is an enlarged fragmentary top plan view showing the vibrator of my invention andsome of the associated parts.

Figure 2 is an enlarged side elevation of the same with parts in section; the section being taken on the line 2, 2 of Fig.3, and looking in the direction of the arrows at said line.

Figure 3 is an enlarged detail end view, with parts in section, of a portion of the construction; the section being taken on the line 3, 3 of Fig. 2 and looking in the direction of the arrows at said line.

Figure 4: is a detail top plan view of the vibrator, shown detached.

have shown my invention embodied in the present instance in a Remington portable machine, only so much of said machine being shown as may be necessary to arrive at an understanding of my invention. It will be understood, however, that the invention may be embodied in other styles of machines. 7 v

It has been customary heretofore in a Remington portable machine to cut away the central part of the type bar segment 1, in order to provide sufficient room in which to mount the ribbon vibrator and associated parts. The cut-away portion was at the slotted part of the segment the bottom of one of the slots being indicated in dotted lines at 2. This resulted in reducing the stock and materially weakening the partitions between the slots at the central portion of the segment. By my present invention I overcome this disadvantage, since by the construction and arrangement of the parts herein shown it is unnecessary to cut away any of the segment.

Secured to the type bar segment 1 by screws 3 is a bracket foot 4 of a sheet metal type guide 5. This type guide extends upwardly and rearwardly over the platen 6 and has guide jaws -7 between which each type bar is received and guided as it approaches the printing position. The type guide is formed with a rectangular sight opening 8 through which the carriage scale 9 and its pointer may be observed.

A. ribbon vibrator, designated as a whole by the reference numeral 10, is preferably formed from a single piece of sheet metal, as shown in Fig. 4. This vibrator is formed as a rectangular frame, with side bars 11, upper cross bar 12, lower cross bar 13, and a central opening 14. The bar 12 is below the sight opening 8 in the type guide and no part of the vibrator extends across said opening, so that the operators view of the carriage scale and pointer is not obstructed by the overlying vibrator. The cross bar 13 is formed with a T-shaped projecting head bent back over the frame of the vibrator and spaced apart therefrom. The stem 15 of this head passes from below the type guide, through an opening below or forward of the sight opening 8 therein and the side edges of the stem co-act with the inner side walls 16 of said opening to guide the vibrator. The ends 17 of the head overlie the type guide and support the vibrator in place thereon. Projecting forwardly from the cross bar 12, and with a slight downward inclination therefrom, is a tongue 18 provided with an opening 19. Operative connection between an actuating arm 20 and the tongue 18 may be efiected by any suitable means, it being understood that the arm 20 is actuated in the usual, or in any suitable manner, at each printing operation. In the present instance the connection is effected by a single-piece sheet metal link 21 formed with a pivot bearing 22 at the looped end for the reception of a pivot 23 which passes through and is secured in bearings 24: in the actuating arm 20. The two arms of the link are riveted together at 25, and one arm is bent at its free end to provide a connecting finger 26 which passes through the opening 19 in the vibrator. The free end portion of the other resilient arm 27 of the link bears against the free end of the finger 26, thus preventing an accidental detachment of the link from the vibrator, but providing means whereby the parts may be readily connected or disconnected when desired.

Projecting upwardly and rearwardly from the upper corners of the open frame of the vibrator are two ribbon supporting or guiding arms arranged outside of the side edges of the type guide. Each arm is formed with an nwardly bent lug '28Wl1l0l1 embraces a side edge of the type guide, providing additional means for supporting and guiding the vibrator. Each ribbon supporting arm is formed with a section 29 that has a loop 30 at its upper end which joins the section 29 to a parallel section 31 that terminates at its lower end in a hook-like looped section 82. Each arm as a whole is twisted at 33 to dispose the sections thereof at an angle to the plane of the body portion or frame of the vibrator and to off-set the arms forwardly or upwardly from such plane so that even the inner sections 29 nearest the platen are located forward of the rear face of the type guide.

From an inspection of Figs. 1 and 3, it will be seen that the ribbon supporting arms are located wholly beyond the side edges of the type guide, and that no part of the arms are interposed between the type guide and the platen, which is an important factor, as will hereinafter appear.

In the Remington portable machine the carriage scale 9 is arranged beneath the vibrator, and an indicator 34: coacts therewith; said indicator being formed as a part of a combined line finder, card or paper guide and printing point indicator, designated as a whole by the reference numeral 35. This device or work sheet engaging member 35 is formed from a piece of spring metal and is secured by screws 36 to a bracket 87 fastened to the non-traveling but shiftable carriage support. It will be seen that this de vice 35 is interposed between the type guide line represents the. lower face of the type guide which coacts with the line finder to limit its upwardmovement. It will be seen from what has been said that the line finder in no case can interfere with the free operation of the vibrator, being positively prevented from interfering therewith by the .type guide, and by. the construction and relative arrangemei'it of the parts.

It will be understood that notwithstanding the protection against interference pointed out above, the ribbon may be efiectively guided from'above, past the lower face of the type-guide and between said guide and the platen. From the foregoing it will be seen that l have provided simple and effective means for overcoming'thedifiiculties pointed out, and that the construction occupies but little space in a machine wherein the parts are necessarily compactly arranged and comparatively light'in structure. lZt' may bementioned incidentally that by mypresent invention I also overcome other dif'iculties than those enumerated above, such for example as the avoidance ofconflict between the pivot or cotter pin, which formerly united the vibrator and the actuating arm,and the line finder.

WVhile in thespecific construction shown the type guide. acts asastop-to arrest the work sheet engaging member 35. before the latter can be forced against the ribbon vibrator, ,from the broader aspects of my invention any suitable bracketor stop may be employed forthis pur ose, for example, the

is moved by relatively stiff or thick work sheets towards the'vibrator, and means for positively arresting said member before it reaches contact with the vibrator.

2. In a typewriting' machine, the combination of a platen, a ribbon vibrator, a line finder carried by a fixed part of the machine and interposed between; the platen and 'vibratorand which is moved'by relatively stiff or thick work sheets towards the vibrator, and means for positively arresting said line finder before it reaches contact with the vibrator.

3. In a typewriting machine, the combination of a platen, a type bar center guide, a ribbon vibrator mounted to slide on said uide and a work sheet en 'a in member and a ribbon vibrator mounted to slide thereon, said vibrator being formed from a single piece of sheet metal with inner and outer ribbon carrying arms the inner arms being off-set to bring them in advance of the face of the type guide which is next to the platen so that any device interposed between the ribbon carrying portion of the vibrator and the platen is prevented from interfering with the action of the vibrator.

5. In a typewriting machine, the combination of a type bar center guide, and a ribbon vibrator supported thereon for slid' ing movement, said vibrator being formed from a single piece of sheet metal with ribbon guiding side arms arranged outside of the type guide and twisted at an angle to the plane of that portion of the guide on which the vibrator is mounted to slide, said vibrator also having lugs or ears formed thereon and co-operative with. the type guide to support and guide the vibrator on the type guide.

6. In a typewriting machine, the com- .bination of a type bar center guide, and a ribbon vibrator supported thereon for sliding movement, said vibrator being formed from a single piece of sheet metal with a four sided open frame, integral ribbon guiding arms that extend from two corners of said frame and along the outer sides of said type guide, and inwardly bent integral ears on the vibrator that embrace the side edges of the type guide and support and guide the vibrator thereon. V

7. In a typewriting machine, the combination of a type bar center guide, and a ribbon vibrator supported thereon for sliding movement, said vibrator being formed from a single piece of sheet metal with a four sided open frame, integral ribbon guiding arms that extend from two corners of said frame and along the outer sides of said type guide, inwardly bent integral ears on the vibrator that embrace the side edges of the type guide and support and guide the vibrator thereon, the lower end of the vibrator having a T-shaped integral head bent back on the frame and spaced apart therefrom to receive the type guide and provide additional means for supporting and guiding the vibrator on the type guide.

8. In a typewriting machine, the combination of a platen, and a ribbon vibrator mounted thereon, said vibrator being formed from a single piece of sheet metal with ribbon carrying arms, no portion of which is interposed between the platen and the type guide, so that any device interposed between the ribbon carrying portion of the vibrator and the platen is prevented from interfering with the action of the vibrator.

Signed at Syracuse, in the county of Onondaga, and State of New York, this 23d day of September, A. D. 1922.

JOSEPH B. HOLDEN.

Witnesses:

RALPH B. SMITH, HAROLD I. KIMMEY.

a type bar center guide,

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