US449923A - Electrical type-writing machine - Google Patents

Description

(No Model.) E. E. YONGS.

ELECTRICAL TYPE WRITING MACHINE. N0. 449,923.

Patented Apr. 7, 1891.

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PATENT Brien.

EDWARD F. YOUNGS, OFA WEST CAMP, NEV YORK.

ELECTRICAL TYPEfWRITlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 449,923, dated April 7, 1891. Application filed May .26, 1890. Serial No. 353,165. (No model.)

To all whom t may concern:

.I Se it known that I, EDWARD F. YoUNGs, a citizen of the United States, residing inNVest Camp, in the county of Ulster and State of New York, have invented certain new and useful Improvements in Electrical Type- Vriting Machines, of which the following is a specification.

My invention relates to means for utilizing electricity as a motive power for operating that class of type-Writing machines in which the types are carried on a plate or a type-wheel which is moved in various directions to bring the proper type into position to be struck by a hammer or plunger to print the desired character; and the object of my invention is to produce improved mechanism whereby a circuit-closer at the end of the lever which travels over the character-index, and which moves the type-wheel to locate the proper type in position, will cause the hammer or plunger to be electrically operated to strike the type and print the desired character. y By this means the hand which operates the indicator-pointer lever can also cause the character to be printed, thus leaving the other hand free for other purposes, such as operating the spacing-lever.

Referring to the accompanying drawings, Figure l is a plan view of one form of machine of this class with my improvement attached. Fig. 2 is a front elevation of a part of the same. Fig. 3 is a side elevation of a part of the machine. Fig. 4 is a side view of the jointed arm 5 and Fig. 5 is a detail of the circuit-closer on the end of the traveling lever.

In the drawings my improvement is illustrated as applied to a machine the bed of which has an upright frame a, to which is pivoted a segmental gear o, that is oscillated horizontally by means of a lever c, which travels over a character-index d. This segmental gear meshes with a gear c, that is pivoted to the back of the frame a, so as to oscillate vertically, and secured to the back of this so as to oscillate with it are the disks g g', the-disk g being slotted to properly guide and direct the movement of the hammer against the back of the type, which type are flexibly secured to the disk g', so that under the impact of a blow from the hammer or plunger 7l a character will be printed upon paper carried across the machine in the paper-carriage which is moved by any common ratchet-and-pawl mechanism. The desired character to be printed is of course brought into position by the movement of the lever c across the index, the gears transmitting the motion to the type-wheel.

. The lower end of the lever bearing the hammer or plunger h is forked, as at 7L', and'this fork is pivoted to a part of the upright frame c, so as to oscillate back and forth when it is desired to print a character. Projecting down from one arm of the fork is the arm l, to which the plate m is so connected as to be capable of independent movement backward, swinging on the pivot o, but so that it is held as one piece tothe arm Zwhen the plate m is pulled forward, the pin fm', fast to the plate m, striking the bottom of the slot Z in the end of the arm Z, in which position it is normally held by the springm2, holding theparts Zand mtogether. The lower edge of the plate m has an inclined surface or rib n for a part of its'length, and between the upper end of the rib and the bottom of the arm Zis a'channel n.

The lever p is so pivoted to a post that rises from the bed of the machineas to have a vertical oscillation, one end of the lever being so bent as to lie in the path of movement of the printing-key lever q, While the other end, under the influence ot' the spring p', lies under the inclined rib on the plate fm.

In writing with the machine, when the printing-lever q is depressed the outer end of the lever p is also depressed with a consequent rising of the inner end, which, coming in contact with the incline on the plate fm, forces the plate forward out of its way. This causes the arm to be thrown forward and the hammer backward, so that the hammer strikes the back of a type and produces an imprint on the paper. Vhen the end of the lever reaches the cut-away portion of channel n at the end of the incline, the arm is allowed to return to its normal position, which of course pulls the hammer back from the type and out of the slots in` the disk g, so that the indexlever can be turned to the next character to be printed. Vhen the lever q is allowed to IOO as one form of machine to which my inven-l tion now to be described may be applied.

R indicates an electro-magnet secured to the'base or bed of the machine, and its armature R is pivoted at r to an upright or to the frame ct. The armature has an extension r', projecting over the end of printing-lever q,

in order that when the magnet is energized the armature thereof will operate said printing-lever.

The handle of lever c has an ordinary pushbutton c', and from the two contacts thereof wires insulated from each other pass to or nearly to the center of motion of said lever, so as not to interfere with its operation, and thence to the magnet, the circuit including of course some source of electrical energy, as a battery at c2. In operation the lever c will be moved to locate the type, and then a pressure on the push-button Will complete the circuit and cause the magnet to operate the hammer through the medium of its armature and the means hereinbefore described. It is obvious also that by providing a space on the char` acter-index, to which the level` c can be moved and the hammer operated Without making an impression, the spacing-lever may be dispensed with. Forinstance,if one of the types were omitted, when the lever c is moved to that position on the index and the circuit closed no impression will be made, but the usual mechanism will feed the paper.

I do not limit myself to the exact form of type-writer herein shown to which to apply my improvement, as it can be adapted without the exercise of invention to other typewriters of this class.

Having thus described my invention, I claimg In a type-writing machine, the combination, with type-locating mechanism, of a lever for operating said mechanism, a hammer for making the impression, an electro-magnet for operating the hammer, a push-button carried by the outer portion of the lever, and two electrical connections carried from the two contacts of the push-button along the lever toward its center of motion and thence to the magnet, the circuit formed thereby including a source of electrical energy, substantially as described.

In witness whereof I have hereunto signed my name in the presence ot' two subscribing witnesses.

SETH YouNGs, CARRIE HURLEY.

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