US432154A - Type-writing machine - Google Patents

Description

(No Model.) 2 sheets-sheet 1. W. BAKER.

TYPE WRITING MACHINE.

Patented'July 1'5, 1890 Tm; Noma Paran co., PHoTcrLrrrlo., msnwcn'om n. c.

(No Model.) 2 Sheets--Sheet 2.

W. BAKER.

TYPE WRITING MACHINE.

No. 432,154. Patented July l5, 1890.

UNITED STATES A PATENT OEEICE.

XVALTER BAKER, OF ILION, NEWT YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 432,154, dated July 15, 1890.

Application tiled December 28.1888. Serial No. 294,895. (No model.)

To all whom t may concern.-

Be it known that I, METER BAKER, of Ilion,in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Type-Vriting Machines, of which the following is a specification.

My invention relates to type-writing machines, and has reference more particularly to that class in which each type-bar is provided with two or more t-ype or priutin g characters, the invention consisting in a novel construction and arrangement of parts, as hereinafter set forth and claimed, whereby either of the types or printing characters is adapted or permitted to make an impression at will. This result is secured by mounting the type-bar supports and their operatingkeys in a frame which is adapted to slide upon or move relatively to the main frame and to the traveling carriage, so as to bring one or the other of the printing characters directly under the center of the printing-surface.

ln the accompanying drawings, Figure l is a side view, partly in section, of my machine; Fig. 2, a top plan View of the same, and Fig. 3 a front face View.

A indicates the main frame of the machine, comprising a base B, u'prights C C, and a top plate D. The latter is provided with a central opening, through which the type strike the roller E, mounted upon the carriage F, which latter is supported, at its front by a wheel a and at its rear by a guide-rod b, as usual in this class of machines.

'lhe base B is an open rectangular frame, having on the inner faces of its sides flanges c, which project from the lower edgethereof, as shown in Fig. l, the said flanges being provided at opposite ends with raised and dressed bearing-faces d to receive the sliding frame G. This frame G comprises two side pieces H H, connected at their front and rear ends and extending upward and bent inward to Ward each other, where they are connected with the basket I, in or to which the typebars J are hinged or pivoted.

The key-levers K are connected to the typebars J by links L, as is usual in this class of machines, and all of the key-levers arc pivoted at their ends, in any suitable manner, to the sliding frame G, so as to move back and forth with the latter.

M M indicate two elbow-levers, pivoted at their upper ends to the side frames H H and at their lower ends to the side frames of the base B of the main frame. The short arm e of lever M extendsforward of its pivot and is bent laterally or provided, with a laterallyextending pin f, upon which the key-lever K marked lower case rests. The short arm e of lever M extends rearwardly, and is likewise bent laterally or provided with a laterally-extending pin f, upon which the key-lever K marked upper case rests. Move- :nent of the levers M and M forward and backward causes similar movements of the frame G.

It should be noted that the levers M M move backward and forward together; but when the arm e of lever M is raised the corresponding arm c of lever M is depressed, and vice versa. From this it follows that when the key-lever marked lower case is depressed it will depress or bear down upon the pin f and tip or rock the lever M forward and bring the frame G in such position as to permit the lower-case typeg to strike the roller, and in thus actuating the frame the arm e on lever M will be thrown upward and carry with it the key-lever marked upper case.7 Then the upper-case key-lever is depressed, it throws the levers M M backward, as shown in dotted lines, the arm e on the lever M falling and the arm e on the lever M rising and carrying with it the key-lever marked lower case. When the parts are in this position, the upper-case type 7L is permitted to strike the roller.

The upper case and lower case levers alternate in their movements, one rising as the other falls, and vice versa, these movements being permitted by placing the arms e e on opposite sides of the centers of the levers M M, which latter, by the way, always move in unison backward and forward.

lf desired, the frame G may be provided with small wheels or rollers z' to run upon the bearing-faces d, so as to render the movement oi' the 'frame easy; but this is not essential.

One of the advantages of the construction IOO 'herein shown is that a Complicated carriage is dispensed with, there being` no mechanism thereon aside from the paper-feed mechanism.

I do not wish to be understood as limiting myself to the application of the invention to the particular style of machine herein shown, as it is obvious that with slight modications in the details the principle may be advantageously applied to other classes or styles of machines. It desired, a spring,` N may be employed to hold the frame G in either of its positions and to return it to such position.

The shiftable frame carrying the key-levers, type-bars, and attendant parts slides back and forth relatively to the main frame, but does not rise and fall as it is shifted.

Having thus described my invention, what I claim is- In combination with the frame Aof a type-` and free to slide within the frame A, a series of type-bars J, pivoted to the upper end of the frame G and provided with types or characters g 71., a series of key-levers mounted upon the frame G and connected with the typebars, a traveling carriage F, provided with an impression-cylinder E, elbow-levers M M', pivoted at their lower ends to the main frame A, studs ff', secured to the levers M M and projecting upon opposite sides of a line passing,` through the axes of the levers, a slotted connection between the upper ends of the le- Vers'M M and the frame G, a spring N, and key-levers resting upon the studsff, all substantially as shown and described.

In witness whereof I hereunto set my hand in the presence of two Witnesses.

IVALTER BAKER. Witnesses:

JAS. P. BALLOU, PHILIP CARNEY.

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