US321479A - Viegil w - Google Patents

Description

(No Model.)

wf. W. BLANCHARD TYPE WRITNG MAHINE.

A i Z/J- 1 QZ 71316212@ 7".r WTz/'msw f bC/vQ/Z W ffmww me@ I f M6024/ A UNITED STATES PATENT trice.

VIRGIL lV. BLANCHARD, 0F NEYV YORK, N. Y.

TYPE-WRlTlNG MACHINE.

SPECIFICATION forming part of Letters Patent. No. 321,479, dated July 7, 1885.

Application led April 1, 1884.

To @ZZ whom it may concern:

Be it known that I, VIRGIL W. BLsNcH- ARD, a citizen 'of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-Writers, of which the following is a specification, reference being had therein to the accompanying drawings, in which- Figure l is a perspective view of a typewriter ngenkey constructed in accordance with my invention. Fig. 2 is a side view of the same with its lower portion in section. Fig. 3 is an enlarged view in section ofthe socket to receive the lower end of the fingerkey stem. Fig. 4. is a perspective View of the lower end of said. key-stein.

My invention relates to improvements in type-writing machines in which a series of pivotedtype-levers are operated by means oi' linger-keys in connection with keylevers and connecting-rods.

ln the accompanying drawings, A represents a type-writer key-lever, generally made of a strip of wood, around which is secured a strap, c, of sheet metal, bent in the middle of its length so as to form two ears, c', extending above the top edge of the key-lever. This strap is secured to the latter in the usual manner by means of a tongue, c?, cut and punched in from the metal of one of the ears a and pressed into close contact with the upper edge of the key-lever. To the ears of said strap is pivoted, by means of the rivet c, a link having its lower end, Z1, rectangular or flattened and its upper end, b', cylindrical. This upper end is first bored centrally or provided with a hole, b2, having a diameter equal to or slightly smaller than the diameter of the stem d of the nger-key. The upper end, b, is then slotted vertically with a saw to l'orrn a mortise, b3, extending under the bottom of the hole b2, and the lat-ter portion of the mortise forms side (No model.)

bearings for the flattened faces of thetenon d',

formed on the lower end of the linger-key stem,

to rest against and prevent the rotation of said stem. A

By the above-described means a shoulder is formed within the bottom of the hole b2 within the link corresponding with the shoulder at the lower end of the cylindrical portion of the stem ci, and also a slightlyfspringy bearing is formed above the shoulder within the same link that strongly clasps the stem at that point, and a rectangular bearing is produced also below the shoulder to hold the stein at that point.

The upper end of the stem d is provided with a finger-key, D, of the usual form and construction. i

Having now fully described my'invention, l claiml. A type-writer key-lever having pivoted to the strap a thereof a link, the lower end of which is flattened and its upper end bored centrally, as at b2, and slotted to form a mortise extended under the perforation b2, in combination with the cylindrical stem d, having a rectangular tenori, d', vat its lower end, a iingenkey, D, at its upper end, substantially as and for the purpose described.v

2. The combination of the finger-key D, provided with a cylindrical stem and a tenon at the lower end of the latter, and a link provided with a cylindrical socket, anda slot extending across and under said socket, with a key-lever and astrap pivoted to saidsocketed link, substantially as and for the purpose described.

In testimony whereof I affix niy signature in presence of two witnesses.

VIRGIL XY. BLANCHARD.

Wit-nesses E. E. Masson, L. C. HILLs.

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