US1107664A - Type-writing machine. - Google Patents

Description

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UNITED s'rAfrns PAf 1ENT OFFICE.

HARVEY L. FISHER. OF WOODS'I'OCK. ILLINOIS` ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO FISHER MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS.

TYPE\VRITING MACHINE.

Specification of Letters Patent.

atented Auw. 18, 1914.

To l/ flo/1on1 it may ron/'cru Be it known that I, HARVEY L. Frsunn. a citizen of the .lnited States. residing at ll'oodstock, in the county of Mel-lenry and State of lllinois. have invented a new and useful 'lype-Writing Machine, of which the following is a specification.

My invention relates to that class of inachines that make. impressions upon the top of the cylindrical platen and the writing visible as it proceeds.

My object is to attain simplicity and economy in constructing and efficiency and durability in operation.

Iileretofore U-.shaped type bars have been mounted in two distinct `groups and each bar adapted to carry three letters or type ditfering inform in such a manner that by shifting the platen the different forms of type eould be used at pleasure and I purpose. to construct and arrange, simple curved type bars in four groups to advantageously aoeon'xplish the results contemplated by the use of U-shaped bars in two groups, a desideratum of importance in view of the fact thatit impraoticable to assemble a sufficient number of bars when each of them carries only two letters or type, because some in each group would necessarily have to be of too great length to prevent bending. By increasing the number of groups and arranging them relative to eaeh other and the platen each type bar need carry only two letters or type and the platen needs only a single-shift mechanism in place of a double shift as is required in the use of U-shaped bars in two groups and therefore by my arrangement of the four groups I can alternately print lower and upper ease letters in one line as required in writing letters &e.

My invention consists in the construction, arrangement and combination of parts as hereinafter set forth, pointed out in my claims and illustrated in the accompanying drawings in which- Figure l is a top view showing the relative positions of the four groups of triangularshaped 'frames adapted to support Series of." curved type bars that differ in lengths and move in different planes to successively strike at one and the same center print letters and characters in true alinement. Fig. Q" isa side elevation showing the manner of mounting the triangularand y shaped frames upon the hase in front of the platen to incline upward relative to the platen: also showing the manner 'of oonnccting the type bars ionrnaled to said frames with the hey levers inelosed in the base and also shows the positions of the feed rolls relative to the platen and the mecha.- nism for operating them. Fig. 3 is. an enlarged view of one of the triangular-shaped frames showing the manner of mounting the journals of the type bars therein. Fig. 4 is a transverse section and Fig'. an edge View thereof. Fig. is a detail view showing the manner of connecting the type bars journaled to the triangulav-shaped frame with the key levers.

The letter A designates the hase of the machine: A: the frame that supports the sliding carriage A3 and A4 the eylindrica platen carried by the carriage.

Nos. l. 2. 3. ll, are frames of triangular shape mounted upon posts or supports B that are fixed upon the top of the base, as shown in Fig. 2, or in any suitable way, in such a manner that they will incline upward in front of the platen A4 at an angle and in such positions relative to eaeh other andv the platen as shown in Fig. 1.

A series of rentering angles are formed in the edge of the long side of each of the triangular frames corresponding in number with the series of the type bars journaled thereto. Bores extend through each reentering angle of the frame to the opposite edge. They are enlarged at their extremities to admit cone-shaped washers n on the ends of journals n of the spindles e". The eurved type liars (l that differ in length are fixed to the shouldered ends of the spindles in any suitable way so they can he independently vibratcd as required to successively strike the. types earried ou their free ends upon one and the saine ecnter and on top of the cylindrical platen to print letters and words in alinemeut upon paper carried on the platen.

llaeh type liar r in each series mounted in the frames Nos.1.2,?i.4.is connected with a key lever F. as shown in Fig. Q in sueh a manner that whena key lever is depressed at its free end the type bar connected therewith will he actuated as required to print an impression with one of the letters of the type on its free end upon the paper carried on the platen.

lt will be seen by reference to Fig. 2 of the drawings that an operator seated in position to operate the machine will be able to look over the top of the type bars and view the writing upon the platen, the type bars when at rest Ain their nornial position being out of the line ol` sight i'roin the operator to the writing line.

Suitable platen-shift mechanism, which need not be illustrated or described in detail, is employed for the printing of upper or lower case characters as desired; and the lateral movements of the platen, under the operation of the keys, is controlled by the usual ortother suitable escapenient mechanism, of which the rack T and dog V are shown in Fig. l. Y

From the foregoing description of the construction and function of each element and sub-combination of my Ainvention the operation and utility of the machine may be readily understood by persons familiar with the art to which it pertains.

I claim as my invention:

l. In a Writ-ing machine, the combination, with the platen, of four groups of curved type bars graduated in length and each fixed to an axle, the axles of each group being journaled to a triangular-'shaped frame, said type bars being arranged at such angles."

relative to each other as to allow them to pass each other on their descent to the platen and bring their type to a connnon printing point on the platen, and their normal positions being out of the line of sight from the operator to the Writing line.

2. In a type Writing machine a triangularshaped frame having a series' of cone-shaped bearings for supporting type bars in front ot' a cylindrical platen, arranged and combined with a platen in the manner set forth.

3. A triangular-shaped frame having reentering angles in one of its edges, a series of straight parallel bearings extending through from said rentering angles, said bearings being enlarged at their extremities, cone-shaped Washers fitted in said bearings, and axles fitted in said bearings and Washers niemeer?.

as shown and described for the purposes stated.

Ll. In a. type writing machine four groups of upwardly inclined triangular-shaped trames each haring parallel bearings, axles extended through said bearings, type bars fixed to the ends of said axles, means for connecting the type bars with the key levers, and a cylindrical platen in a plane above and in rear of said groups ot' triangular-shaped frames, all arranged and combined as shown and described for the purposes stated.

5. In a type Writing machine, the combination With a platen ota right angled triangle shaped bearing 'frame located" in front of the platen, and having a series of parallel cone-shaped bearings for type bars, and type bars journaled in said bearings, substantially as described.

(5. In a typewriting machine, the combination, with a platen, of a. triangular-shaped bearing frame located in front of the platen and having a series of parallel bearings for type-bars, and a series of typebars mounted on axles arranged in said bearings, said axles being of successively increased length from the one nearest the rinting point on the platen to the one most remote, and being located in a plane substantially tangential to the platen and inclined forwardly ""an'd downwardly therefrom.

7. In a typewriting machine, the combination with av platen of a series of bearing frames, each consisting of a substantially right angled triangle shaped plate of metal provided with a series of parallel bearings for type bars, said bearing frames being lo cated in front of the platen and each having an apex directed toward the printing point and being inclined upwardly from its outer side thereto, means for supporting said beart ing plates, and type bars journaled in said bearings, substantially as described.

HARVEY L. FISHER.

Witnesses:

C. I'. LAUGHLIN, ERVIN E. GREENLEY.

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