US972009A - Type-writing machine. - Google Patents

Description

H. S. MOGGRMAOK.

TYPE WRITING MACHINE.

APPLIOATION FILED JUNE 18, 1908.

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2 SHEETSSHEET l.

H. S. MOGORMAGK.

TYPE WRITING MACHINE.

APPLIOATION FILED JUNE 18, 1908. WE QWQ ma ma @(Bil. 4, mm.

2 BHEETSSHEET 2.

HARRY S. MCCORMACK, OF NEW ROCHELLE, NEW YORK, ASSIGNOR T0 UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATIDN OF NEW JERSEY.

TYPE-ITING MACHINE.

To all whom it may concern:

Be it known that T, HARRY S. MoCoRMAoK, a citizen of the United States, residing in New Rochelle'in the county of Westchester and State of New York, have invented certain new and useful Improvements in Type- Writing Machines, of which the following is a specification.

This invention relates tothe ink ribbon mechanism of typewriting machines, and particularly to that class of machines in which several sheets or webs of paper are written upon simultaneously through several ink ribbons, the ribbons alternating with the paper-webs.

The principal object of my invention is to provide sim le and inexpensive means which may be readily applied to existing machines, for writing with ribbons upon several sheets or webs simultaneously.

I provide in addition-to the usual vibrating ribbon, a set of short len ths of ribbon havin catches at its ends, w ereby it may be easily caught upon any suitable supports upon the machine in front of the platen, as for instance the usual front pa er-guiding fingers which curve around the rout of the platen.

The webs to be written upon are laced between the several lengths of ribbon, and

the outer webdpasses between the top ribbon.

in the set an the usual vibrating ribbon. These ribbons travel with the platen, and in order to prevent them from wearing out too rapidly, I provide for adjustment of the ribbons in several ways. One wa is to slip the said paper-guiding fingers a ong their supporting rod to bring lnto use different endwise portions of the set of ribbons. Another way is to detach the set and turnit end for end, thereby bringing a different widthwise portion of the set into use, since the types strike the set of ribbons nearer to one edge thereof than the other.

Preferably a single. piece of ribbon is rove back and forth repeatedly from one attaching device to the other to make up a set of ribbons; and it will be understood that upon moving the paper guides closer together or otherwise loosening the ribbon, either end thereof maybe pulled along, drawing the body of the ribbon around its guides sufliciently to bring difi'erent portions thereof into use; the length of the line to be Specification of Letters Patent.

Application filed June 1%, 190%.

Patented @ct. a, 19.

Serial It 0. 439,223.

written being usually much shorter than the length of the set of ribbons.

The set of ribbons may readily be thrown up away from the platen for convenience in lacing the webs therethrough, and for other purposes; and whenever it is desired to use the machine for ordinary correspondence or page writing, it is only necessary to slip off the set of supplemental ribbons.

In the accompanying drawings, Figure l is a perspective view of one form of a pair of attaching devices or buckles through which is rove a ribbon. Fig. 2 is a perspective view of a platen frame and ribbon vibrator of an Underwood front strike writing machine with my improvements applied thereto. Fig. 3 is a part sectional plan of the referred form of attaching device or buck e for the end of the set of ribbons, the buckle being shown open'to release the ribbon or ribbons. Fig. 4 is a perspective view to illustrate the manner in which the webs are laced throu h the ribbons; the outermost of the four we s being indicated in dotted lines,

andv to be written upon by the usual vibratspective view of a fr0nt adjustable paperguiding finger provided with a button on which to catch one of the buckles of the set of ribbons. Fig. 8 is a View corresponding to Fig. 6, but showing the set of ribbons thrown up away from the platen. Fig. 9 is a sectional view to illustrate-the manner in which the aper-guiding finger, shown at Fig. 7, is yie dingly splined to the rod.

Type bars 1 strike upon the front side of a revoluble platen 2, which is mounted. by

an axle 3 in the ends 4 of a platen frame 5. The types strike through the usual vibrating ribbon 6 carried upon a vibrator 7 which reciprocates at every type stroke; the same being seen at its normal or lowered position at Fig. 6.

Four paper-webs are illustrated, numbered respectively 8, 9, 10, 11, suitably supported upon spools 12 and led from the spools down back of the platen and around the 'bottom and up in front thereof in the usual manner; pressure rolls 13 cooperating with the'platen to advance the webs. The

spools may be supported in any usual or suitable manner.

Inked type impressions are made upon the outer or upper web 8 by means of the ribbon 6. For the three remaining webs I provide lengths of ribbon 14, 15, 16, one for each' web, the webs being led between the ribbons, so that each web shall underlie the ribbon by which it is to be inked.

The set of ribbons 14:, 15 and 16 has at its ends chapes 17, provided with slots 18 adapted to catch upon buttons 19 rovided upon fpaper-guiding fingers 20, wlich extend cm the rod 21 of the platen frame forwardly and down around the front of the platen; these paper-guiding fingers being of the usual type except for the buttons 19.

Each chape forms part of a buckle, and the remainder of the buckle preferably consists of a frame 22, which may be formed of a length of wire bent into a form roughly resem ling the letter S, and including a pintle or ivot portion 23 ivoted in an eye 24 forme upon the end 0 the chape. The extreme end of the pivoted frame is in the form of an eye 25 to receive one or more loops of ribbon and the other end of the pivoted frame is also formed with an eye 26, to receive the end 27 of the rlbbon. The chape is formed, between the eye 24: andthe slot 18, with a recess or depresslon 28, into which the inner end of the pivoted frame presses tightly the end of the ribbon, so as to secure the same,

It will be seen at Fig. 4: that, beginning with't'he right hand end 27 of the ribbon, it is led through the eye 26, being clamped 1n the recess 28, and extends thence through the eye 25 of the left hand buckle, and thence back through the eye 25 of the right hand buckle, and thence again through the eye 25 of the left hand buckle, and thence through the eye 26 of the latter to be clamped in the recess 28.

It will be understood that the fingers 20 may be swung up around the rod 21, as seen at Fig. 8, for convenience in adjusting the auxiliary ribbons, and threading the webs therethrough; and also that said fingers may be slidden toward each other along the rod 21, to loosen the ribbons and permit the buckles to be opened, Fig. 3, for drawing up either end ofthe ribbon at little, to expose different lengthwise portions of the three lengths of ribbon to the action of the types, and that the buckles may then be closed, and the fingers 20 dropped and pulled away from each other to tauten the ribbons.

Itwill be understood from Fig. 6 that the types strike through the auxiliary ribbons near their upper edges. The set of ribbons may be detached and turned end for end, and reattached with the same ribbon in front, so as to bring the unused edge portions of the ribbons into the type field, thereby doubling the life of the ribbons.

It will also be seen that by sliding the fingers 20 along the rod 21, different lengthwise portions of the set of ribbons may be brought into use, so that the same will not become too rapidly exhausted of ink.

By detaching the set of ribbons from the buttons 19, the machine is made ready for use in writing correspondence, and for other ordinary purposes.

Thus it will be seen that by a very slight and inexpensive change in the machine, it may be adapted for writing with ribbons upon a plurality of sheets or webs simultaneously, and that as soon as one set of ribbons is worn out, another one may be readily obtained at low cost, and readily placed upon the machine.

It is noted that the paper-fingers 20 are formed with yokes 29 having keys 30 in the form of rolls to fit in a longitudinal groove 31 formed in the rod 21.

In the form shown at Fig. 1, each buckle is in the, form of a single integral plate 32 having the attaching slot 18, and also having eyes 33, 34, and 35, through which the ribbon is rove, buckle to buckle, to form the three lengths of ribbon between the buckles, as shown.

Other variations may be resorted to within the scope of the invention; and portions of the improvements maybe used without others.

Having thus described my invention, I

claim:

1. An attachment for a typewriting machine, comprising a set of short lengths of ribbon having a single catch at each end, and means to take up the slack in all the ribbons simultaneously.

2. In a typewriting machine having a platen, a platen frame and a ribbon, the combination with a set of additional ribbons superposed upon the platen, of means at the ends of the set to attach the set toa part on the platen frame, and means to adjust the set bodily along the platen.

3. In a typewriting machine having a platen, a platen frame and a ribbon, the combination with a set of additional ribbons superposed upon the platen, of means at the ends of the set to attach the set to a part on the platen frame, and means to adjust the set bodily to different positions along the platen to bring different parts thereof intouse.

4. In a typewriting machine having a platen, a platen frame and a ribbon, the combination with a set of additional ribbons superposed upon the platen, of means at the ends of the set to attach the set to a part on the platen frame, and means to adjust the set to different positions along the platen to bring different parts thereof into use; means being provided to permit the set to be ataraooo' tached in difi'erent widthwise positions to bring diderent lines thereon into use.

5. In a typewritinginachine, the combination with a revoluble platen, a platen frame, and paper-guiding fingers mounted in front of the platen, of a ribbon detachably mounted upon said fingers.

6. In a typewriting machine provided with a vibrating ribbon, the combination with a revoluble laten, a platen frame, and paperguiding ngers mounted in front of the platen, of a set of ribbons detachably mounted upon said fingers.

7. In a typewriting machine, the combination with a revoluble platen and a pair of paper guiding fingers mounted in front of the platen, of a set of ribbons having detachable catches at its ends catching upon the paper guides.

8, In a typewriting machine, the combination with a revoluble platen and a pair of paper guiding fingers mounted in front oi the platen, of a set of ribbons having detachable catches at its ends catching upon the paper guides, said guides adjustable along the platen together with said ribbons, to bring difierent portions of the ribbons into use.

9. In a typewriting machine, the combination with a revoluble platen and a pair of paper guiding fingers mounted in front of the platen, of a set of ribbons having detachable catches at its ends catching upon the paper guides, said guides adjustable along the platen together with said ribbons, to bring difierentportions of the ribbons into use, and the sets of ribbons being adjustable to bring difierent Widthwise portions thereof into use. v

10. An inking device consisting of a set'of lengths of ribbon, the-set having catches one at each end catching upon parts supported upon the typewriting machine and adjustable along the platen.

11. llhe combination with a traveling platemof a set of ribbons to travel with the platen, the set having a single clip at each of its ends catching upon parts which travel with the platen, and being adjustable endwise to bring difierent portions of the set into use; said set being also capable of being set to position to bring difi'erent widthwise portions thereof into use 12. In a typewriting machine, the combination with a platen and platen frame, of a ribbon mounted upon supports in front of the platen, said supports hinged upon said platen frame to carry the ribbon up and away from the platen.

13. in a typewriting machine, the combination with a platen, a platen frame, and a pair of supports mounted upon said frame and extending to the front of the platen, of a set of ribbons caught at its ends upon said supports, the latter mounted to carry the ribbon bodily up and away from the platen at will.

14. In a typewriting machine, the combination. with a platen, a platen frame, and a pair of supports mounted upon said frame and extending to the front of the platen, of a set of ribbons caught at its ends upon said supports, the latter movable up and away from the platen, for convenience in threading paper rolls between the ribbons.

15. In a typewriting machine, the combination with a revoluble platen and a platen frame, of paper-guiding fingers extending in front of the platen and movable away from'the laten, and a set of ribbons caught at its on 5 upon said fingers.

16. In a typewriting machine, the combination with a revoluble platen and a platenframe, of paper-guiding fingers extending in front of the platen and movable away from the platen, and a set of ribbons caught at its ends upon said fingers, and movable thereby up and away from the platen for convenience in threading paper between the ribbons.

17. In a typewriting machine, the combination with a revoluble platen and a platen frame, of paper-guiding fingers extendin in front of the platen and movable away rom the platen, and a set of ribbons caught at its ends upon said fingers, and movable thereby up and away from the platen for convenience in threading paper etween the ribbons, said fingers adjustable together with said ribbons along the platen to bring difierent portions of the ribbons into use.

18. In a typewriting machine, the combination with a travelingplaten and a ribbon, of a set of ribbons interposed between said ribbon and .the laten and usable simultaneously with sald ribbons, and means for adjustin said set bodily along the platen to bring difierent portions thereof into the field of the types or to the printing line.

19. In a typewriting machine, the combination with a platen frame, of a pair of buckles detachably caught upon supports on the platen frame, and a ribbon laced back and forth from one buckle to the other and extending over the printing line on the platen; one of said buckles movable relatively to the other to tauten the several lengths of ribbon simultaneously.

20. In a typewriting machine, the combination with a platen frame, of a pair of buckles detachably caught upon supports on the. platen frame, and a ribbon laced back and forth repeatedly from one buckle to the other and extending over the printing line on the platen, the buckles having means for clamping the ends of the ribbon; one of said buckles movable relatively to the other to tauten the several lengths of ribbon simultaneously.

21. In a typewrit-ing machine, the combination with a platen frame, of a pair of buckles detachably caught upon supports on the platen frame, and a ribbon laced back and forth repeatedly from, one buckle to.the other and extending over the printing line on the platen, each buckle including eyes through which the ribbon is threaded, one of said buckles movable relatively to the other to tauten the several lengths of ribbon simultaneously.

22. In a typewriting machine, the combination with a platen frame, of a pair of buckles detachably caught upon supports on the platen frame, and a ribbon laced back and forth from one buckle to the other and extending over the printing line on the platen, the buckles having means for clampmg the ends of the ribbon, each buckle comprising a chapehaving a depression into which the ribbon is forced by a frame pivoted on said chape. r

23. In a typewriting machine, the combination with a-platen frame, of a pair of buckles detachably caught upon supports on the platen frame, and a ribbon laced back and forth from one buckle to the other and extending over the printing line on the platen, the buckles having means for clamping the ends ofthe ribbon, each buckle conirising a chape having a depression into which the ribbon is forced by a frame pivoted on said chape, the chapes having slots to catch over buttons on the machine.

HARRY S. MGCORMACK. Witnesses:

Jon 0. Snrrnnr, K. Fmnronr.

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