US1025669A - Type-writing machine. - Google Patents

Description

, E. E. BARNE'Y.

TYPE WRITING MACHINE. APPLICATION FILED APJLZE, 1910.

Patented May 7, 1912,

WITSQEEE INVENTEIR: 5%fizza M I-JIE ZA- TCIRNEY .utilizing either one of two UNITED STATES Pr TENT OFFICE. Y

EDWIN E. BARNEY, 0F SYRACUSE, NEW YORK, ASSIGNOR TO THE Myflll'ARcH TYPE- WRITER COMPANY, OF SYRACUSE, NEW'YORK, A CORPORATION NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Batent.

Application fi1ed Apri125, 1910. Serial No. 557,508.

Toall whom z't mafy concern "Be it known. that Enwin' E. BARNnY, citizen of theUnited'statessand resident of -1Syracuse,'i n the county .of Onondaga and State of New York, have invented certain new and, useful Improvements in Type- Writin Machines, of which the following is a speci cation.

My invention relates to typewriting machines and more particularly to ribbon vibrator mechanism of such machines.

The object of the invention is to provide improved means for varying the extent of throw imparted to the vibrator and to do this 1 by mechanism of extreme simplicity. In the present instance the variation in the throw of the vibrator is for the purpose of longitudinal stripes-of the ribbon.

My invention consists in certain features of construction and combinations and arrangments of parts, all of which will be 'fully set forth herein and particularly pointed out in the claims.

'In the accompanying drawings :-Fignre 1 is a side elevation of the invention, partly in section and with some of the associated parts of the typewriting machine shown fragmentarily. Fig. 2 is a top plan view, partly in section and partly broken away. Fig. 3 is a view similar to part of Fig. 2 but with the section taken on a lower plan.

The invention is applicable to various styles of visible typewriters and it is here This carrying types which are adapted to strike against the front face of the platen. The machine also comprises a top plate 2 which supports the guide 3 of a ribbon vibrator 4, through which is threaded a ribbon 5, which ribbon is here shown made with an upper and a lower stripe with diife; t kinds of ink, such for example, as blue ok and red ink, respectively. The machine also comprises 'a series of printing key levers 6, to each of which at 7 is pivoted a sub-lever 8 having in its lower end a slot that engages a fulcrum rod.l0, the upper arm of each of the sub-levers being suitably connected withone of the typebars. A universal bar 11,

r lying beneath the key levers,-t'orms part of a rocking frame which also comprises a rock shaft 12 pivoted in the base of the machine and having arms 13 projecting therefrom and supporting the universal bar 11. One of these arms .is prolonged at 14 and has a link 15 connected therewith. and with the carriage escapement of the machine. The arm or extension 14 also has pivoted thereto at 16 the lower end of a link 17 which operates the ribbon vibrator. The link 17 comprises at its upper end a sheet metal section 18 which is formed with a slot having an approximately horizontal branch 20 and an approximately vertical branch 21.- Into this slot a pin 22 projects from a vibrator operating lever 23, said pin 22 being riveted into the lever 23 and formed with a head as shown in Fig. 2. The lever 23 is pivoted at 24 in a lug or bracket 25'depending from the top-plate 2, and the forward end of the lever is formed with a open slot that em- Patented May 7, 1912.

braces a pin 2'6 in thelower end of the' vibrator 4.

The construction is such that if the link 17 be swung slightly toward therear at its upper end so that the pin 22 lies in the hori Zontal part 20 of the slot, then the ordinary operation of the universal bar will throw the vibrato-r to its full heightiso as to cause the lower stripe of the ribbon to cover the printing pointyand-if the link 17 be moved forward to the position shown in Fig. 1, where the pin 22 is under the vertical branch 21 of the slot, then the first part of the stroke of the universal bar will merely take up the lost motion between said pin and the upper end of the slot and the lever will be operated only during the latter part of the motion of the universal bar, with the result that the vibrator will be thrown only high enough to cover the. printing point- 30 is also mounted on'the lower end of the bracket 25, said controlling device being the screw clamping the plate 27 tightly.

against the bracket 25 and the guide 30 being pivoted on the shouldered part of the screw and held in place by the head of the screw. The guide or controller 30 is formed with an arc-shaped slot 32 which is eccentric to the screw 31, the end of the slot occupying the upper partof Fig. 3 being closer to the axis of the screw than the end of the slot at the lower part of said figure.

The link section 18 passes through said slot and the construction is such that when the sector 30 stands in the position shown in Figs. 2 and 3 the link sect-ion 18 is held in its forward position and if the sector be turned to the left as far as it will go the eccentric slot 32 will earn the link to its rear position. In the drawings the parts are shown set to write from the upper or blue stripe of the ribbon but it the sector 30 be swung to the left they will be set to write from the lower orred stripe of the ribbon. In order to swing said sector conveniently a headed pin 33 projecting therefrom is engaged by a slot 34 formed in an arm 35 projecting from a rod 36 which is mounted "in brackets 37 depending from the top plate 2, said rod being capable of sliding length- Wise and being provided at its ends withfinger buttons 38 for sliding it. The rod is prevented from turning in its bearings by the sector 30 and the head of the pin 33. In order to retain this rod in either of its two'set positions. a spring 40 is mounted on one of the brackets 37 by means of a screw 41 and said spring is bent into a V-shape at its end 42, which engages notches 43 suitably located on the rod 36. It will of course be understood that various other devices can be eni 'iloyed for performing the functions of the sector 30.

It will also be understood that various other changes can bemade in 'the details of construction without departing from my invention.

45 What .I. claim as new and desire to secure by Letters Patent, is:

1. In a tv'pmvriting machine, the combination of a ribbon vibrator, ahorizontally disposed operating lever for said vibrator,

0 said lever having a pin, a. universal bar, a

vertically disposed link extending upward from said universal bar and having at its upper end an angled slot which embraces said pin, one part of said slot affording, b reason of lost motion between the lin and pin, a stroke less than a full stroke of a said vibrator, a -guide for the upper end of sald link, and means for shifting said guide to cause difierent parts of said slot to en gage said pin.

2. In a typewriting machine, the combi-- nation of a ribbon vibrator, a horizontally disposed operating lever for said vibrator, said lever having a pin, a universal bar, a vertically disposed link extending upward from said universal bar and havmgat its upper end an angled slot which embraces said pin, one part of said slot affording, by reason of lost motion between the link and pin, a stroke less than a full stroke of said vibrator, a. guide plate having a cam slot therein for guiding the upper endzof said link, and hand operated means for shifti said plate to cause said cam slot to shi ili said link to bring different parts of said 'angled slot into cooperation with said pin.

ing an elongated slot through which said I link passes, the arrangement being such that the link is uided in an opening, the side walls of whlch consist of the side walls of the slot in the fixed plate, and the end walls of which consist of the side walls of the slot in the pivoted plate.

Signed at Syracuse, in the county of ()nondag. and State of New York, this 22d day of April, A. D. 1910.

EDWIN n. BARNEY.

Witnesses: v DEAN CLARK, S. F. Cooensnann.

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