US661472A - Type-writing machine. - Google Patents

Description

N0. 66IJI72. Patented Nov. 6, I900. F. W. HILLARD.

TYPE WRITING MACHINE.

(Apnlication filed Aug. 16, 1900.) N 0 III 0 d a I 2 Sheets-Shaa t I.

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F. W. HILLARD.

TYPE WRITING MACHINE.

(Application filed Aug. 16, 1900.)

(No Model.)

Patented Nov. 6, I900.

2 Sheets-Sheet 2 A INVENTOR zr z cwdami ATTORNEY dramas l a'rn'r rricn.

FBEDERIO 1V. HILLARD, OF NEW YORK, N. Y., ASSIGNOR TO THE ELLIOTT & HATCH BOOK TYPEWRITER COMPANY, OF SAME PLACE.

TYPE WRITlNG MACHINE.

SEECIFIGATION forming part of Letters Patent No. 661,472, dated November 6, 1900.

Application filed August 16, 1900. Serial No. 27,039. '\No model.)

To all whom it may concern:

lieit known that I, FREDERIO W. HILLARD,

a resident of New York, (Tottenville,) in the county of Richmond and State of New York,

5 have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention is an improvement upon the style of ty pe-writ-in g machines illustrated and described in United States Letters Patent, as follows: No. 607,193, dated July 2, 1898;No. 607,274, dated July 12, 1898;No. 6l1,14l6,'dated September 20, 1898; No. 62436;, dated May 9, 1899; No. 634,805,.dated May 9, 1899; No.

640,699, dated January 2, 1900; No. 652,691,

dated June 20, 1900.

The invention consists in the specific featn res hereinafter described and illustrated in the drawings and set forth in the claims.

In the accompanying two sheets of drawings, which form a partof this specification, Figure 1 is a plan view of several key-levers and the type-wheel actuators and stop-arm. Figs. 2 and 3 are detailed drawings, on an enlarged scale, showing the free end of the typewheel 'stoparm in engagement, respectively, with two key-levers, one being the lever nearest the middle of the keyboard and the other be- 7 ing the farthest from the middle of the keyboard. Fig. t is a side view, partly in section, showing the printing mechanism.

There is illustrated in Fig. 1 a carrier for the typewheehwhich is mounted lengthwise upon the type-wheel shaft, the two actuators 3 5 for the type-wheel which engage with the faces of the carrier on opposite sides of the type wheel shaft, and certain key-levers for actuating the type-wheel carrier, and thereby the type-wheel These levers also actuate the 4.0 hammer; but this feature need not be described.

The type-wheel shaft A is setvertically in the machine. Upon itis sleeved a type-wheel carrier 13, which consists of a hollow tube or collar to fit over the type-wheel shaft, from the lower end of which tube a stop-arm O for the type-wheel extends toward the front of the machine and at the upper end of which is a type-wheel-positioning member D. This member consists of a positioningarm which extends backward in the opposite direction and with it the type-wheel.

to the stop'arm and at its rear end is turned upwardly, so as to engage with a spoke of the type-wheel E and position the wheel. The carrier B also consists of two wings E E, which extend out from the type-wheel shaft at right angles to the line of the stop-arm and positioning member, one wing lying on one side of the machine and the other on the other side. These two wings are provided with slots E E and ceuteringfaces E E, with which the upper ends of the type-wheel actuators F F engage. \Vhen the parts are in normal position, the upper ends of the actuators engage with the two centering-faces, and the wheel is held in its middle position. As either actuator is driven rearwardlynpon the depression of a key it strikes the face of the slot E on the same side of the machine with it in the lineof its travel and rotates the type-wheel carrier B on the type-wheel shaft,

The end of an actuator when brought into engagement with a face of a slot E, as described, is on one side of and in front of the type-wheel shaft. The path of the actuator is in a straight line toward the rear end of the machine. Therefore as it moves rearwardly the actuator will approach more nearly to the type-wheel shaft. and will travel down the slot E a greater or less distance, depending on how far the actuator is driven. This looks the type-wheel carrier and actuator together and positions the actuator properly to engage with the other face of the slot E to return the typewheel to normal position when the key'lever K is released.

The angle throngh which the type-wheel carrier D is rotated by the actuator is determined by the location of the key-lever which is depressed. Each lever is provided with a stop G, extending upward from the lever. These stops are slotted at their bases G, so that the stop arm may pass under them through the slots until the key-lever which is depressed is reached, when the stop-arm will come into engagement with the key-lever and stop the rotation of the type-wheel carrier and the typewheel, thus positioning the type-wheel for printing.

The operation of the type-wheel carrier by the actuators is more clearly and fully illus' IOO trated in Fig. 4. On depression key-lever K is first brought in contact with the universal bar K, through which an actuator F for the type-wheel is operated to set the type-wheel E by a mechanism that is Well understood. Upon still further depression the key-lever actuates the universal bar K mounted on the front end of the lever K for actuating the printing-hammerK. This printing-hammeractuating lever K acts through a pivoted cam-lever K to throw the printing-hammer to the printing position. The stop-arm O has been heretofore constructed with substantially square ends to contact with the stops G of the key-levers. With such construction the point on the stoparm which engages with the various key-levers is substantially the same for all the levers. This results in wear upon the stop-arm and consequent displacement of the type-wheel. It is not permissible that there should be any wear upon the stop-arm. The object of my invention is to prevent wear by changing the point of contact on the stop-arm with each key-lever. To accomplish this, instead of providing a stop-arm wit-h a square end I provide a stoparm which has two circular or nearly-circular lobes H H, the face of one of which engages with the key-levers on one side of the machine and the face of the other of which engages with the key-levers on the other side of the machine. It follows that the pointof contact between the end of the stop-arm and the key-lever will depend upon the position of the key-lever in the keyboard. This is illustrated in detail in Figs. 2 and 3, which show the range of the contact-point on the end of the stop-arm, and therefore the length of the are that must be shaped, as here inclicated. An advantage arises from having two circular lobes instead of striking one circle around the end of the stop-arm in that the angular difference between successive contact-points increases as the diameter of the are upon which these contact-points are located diminishes.

It is obvious that the configuration of the end of the stop-arm might be changed and the shape of the stop-arm itself might also be changed and that one lobe might be provided to engage with the key-levers on both sides of the machine.

What I claim, and desire to secure by Letters Patent of the United States, is

1. In a type-writer, the combination of a type-wheel, key-levers, means for rotating the type-wheel by the key-levers, and a stop-arm and stops operated by the different key-levers to set the wheel, the configuration of the end of the stop-arm being such as to secure a different point of contact with the different stops, substantially as described.

2. In a type-writer, the combination of a type-wheel, key-levers, means for rota ting the type-wheel by the key-levers, and a stop-arm and'stops operated by the different key-levers to set the wheel, the end of the stop-arm being provided with two circular contacting faces, substantially as described.

Signed by me in New York city, New York, this 10th day of August, 1900.

FREDERIC l/V. I-IILLARD.

Witnesses:

THOMAS EWING, J12, GEORGE H. GILMAN.

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