US1668472A - Printing mechanism for typewriting machines - Google Patents

Description

May 1, 1928.

W. A. VALENTINE PRINTING MECHANISM FOR TYPEWRITING MACHINES Filed Jan. 15. 1927 2 Sheets-Sheet 1 ATTORNEY.

May 1, 1928. 1,668,472

W. VALENTINE PRINTING MECHANISM FORVT-YPEWR'ITING MACHINES Filed Jan. 15. '1927 2 Sheets-Sheet 2 z I u u 7; 8 ATTORNEY.

Patented May 1, 1928.

UNITED STATES WILLIAM A. VALENTINE, 0F WILKES-BARRE, PENNSYLVANIA.

PRINTING MECHANISM FOR TYPEWRITING MACHINES.

Application filed January 15, 1527. Serial No. 161,400.

This invention relates to a printing mechanism for typewriting machines and has for its object to provide, in a manner as hereinafter set forth, a printing mechanism for use in connection with typewriting.machines of the Hammond or similar makes for writing music and music signs.

Briefly described the invention relates to that form of typewriting machine in which the printing is done by hammers and type carrying shuttles, the paper and ribbon be-. ing interposed between those parts to receive the impression on the actuation of the hammer which coacts with the shuttle. More par ticularly the invention relates in the incorporation of type in the form of music signs on the shuttles now employed in the Hammond and like forms of typewriting machines, and with the shuttle carrying solely all the signs employed in writing of music or a music score, thereby making possible the writing of music when a shuttle and hammer, in accordance with this invention, cooperate with respect to each other.

The shuttles at present employed in the Hammond make of 'typewriting machines contain three rows of type of thirty characters each, ninety in all. In accordance with this invention, there isto be employed instead of the type now used on the shuttle, the music signs in a set of thirty extending in a single row on the shuttle. Such arrange ment will permit the notes and their stems to be equal in length to the width of the shuttle, and thus sufliciently large in relation to the other of the music characters. Such other signs as rests and accidentals, which do not require to be as large as notes, can be positioned on the shuttle without extending' over the whole width thereof.

In conjunction with what will be termed a music shuttle having a music sign arrange ment, there is employed a large face hammer, different from those now employed in typewriting machines of the Hammond and like makes. This hammer has a music face or head of the same length as the width of the shuttle, thus enabling the head in a single stroke to cover the entire width of the shut-, tle. At present hammers employed in type writing machines of the Hammond and like makes have hammer faces, such as manifolding face, mimeograph or stencil face, regular face for ordinary typing, and Braille face for writing the Braille system for the blind. 0n a majority of machines, except special built ones for the blind, etc., there are three hammer faces employed and contained on the hammer which is of turret form. Instead of a fourth face there is at present a round knob which is of no use at all. At

this point on the hammer there will be arranged, in accordancewith this invention, the music face, which is of similar construction to the regular face, but of a different size as hereinbefo-re set forth.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a printing mechanism for typewriters which is simple in its construction and arrangement, strong, durable, compact, thoroughly efficient in its use, conveniently installed in a typewriting machine and comparatively inexpensive to manufacture.

With the foregoing, and other objects in view the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically de scribed, and illustrated in the accompanying drawings wherein is shown an embodiment of the invention, but it is to. be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended.

In the drawings wherein like, reference characters denote corresponding parts throughout the several views:

Figure 1 is a fragmentary view of a typewriter of the 'Hammond class, in section, showing the adaptation therewith of a printing mechanism in accordance with this invent-i011.

Figure 2 is a plan, partly in section of a printing mechanism in accordance with this invention and further illustrating more clearly the ribbon shield which is constructed in a manner to provide for the operation of the enlarged musicface of a hammer, in connection withthe shuttle.

Figure 3 is an elevation of the shuttle.

Figure 4a is an elevation of the ribbon shield.

Figure 5 is an elevation of the hammer showing the music face.

Referring to Figure 1 of the drawings A, B, (hand D indicate generally, respectively the anvil, shuttle, ribbon shield and hammer. The anvil A is of the form employed in the Hammond typewriter machine and is ring shaped and slotted to receive the web 1 of the shuttle B. The ribbon shield C, hammer D as well as the shuttle l3,- differ as such elements, as shown, form parts of the well known Hammond typewriting machine and no claim for such elements is made in this application. The elements referred to collectively, by the reference character E, are employed to operate the anvil A, shuttle B, shield C and hammer l). The invention forming the subject matter of this application, relates solely to the shuttle B, shield C and hammer 3.

The shuttle B comprises body portion 2 of hard rubber made from a master steel die onwhich is engraved the characters forming the sign set and which are designed to be printed. The body portion 2 is formed with the web 1 which extends through the slot in the anvil A, see Figure 1, and said body portion 2 is fixedly secured against the outer face and is of materially less length than the circumference of the anvil. See Figure 2. The body portion 2 of the shuttle B has its outer face provided throughout with spaced music signs. The signs or characters 3, on the outer face of the body portion 2, are equal'in length and each is of a length corresponding substantially to the width of thebody'portion 2. The signs, characters or symbols 3 are few in number. The signs, characters or symbols indicated at 4 are of a size to occupy but one third of the width of the body portion 2 and are arranged to providewhat may be termed the upper row of the sign set. The signs, characters or symbols indicated at 5 are of a size to occupy but two thirds of the width of the body portion 2, and are termed the lower row of the sign set. The space occupied by the signs 5 normally would constitute the two lower rows of characters on the shuttles nowemployed.

The ribbon shield B is similar in construction to the shield employed in typewriting machines of the Hammond and like makes, but with this exception that the slot 6, disposed centrally thereof, for the passage of the music face of the hammer to be presently referred to, is of a length slightly greater than the width of the sign set or in other words of a length equal to the width of the body portion 2. There is no need to specifically describe the shield G, as itis constructed similar to the shield now generally employed in typewriting machines of the type referred to, other than the setting up of the part 6 of a length to provide the passage of the enlarged music face of the hammer.

The hammer D is of the turret formand neeae'm it provided with carbon face 7, a stencil face 8, a regular face 9 and a music face 10, which is twice as long as the other faces and projects above the base of the hammer equally as far as it is secured on such base, thus makingitdoubly as long as the other faces. The reason for this double sized music face is to permit the production of notes with their stems attached, as well as the E and F clef, in the correct proportion they bear to the other music signs. By striking the keys of'the machine without depressing, either the capital or figure keys, the cha 'acters of the upper row of the shuttle, indicated at a, will be written. By depressing the figure lrey the characters 3 and 5 can be w itten. This is made possible by the use of the double size music face, used in conjunction with the signs placed on the shuttle as illustrated.

The hammer D is constructed in a manner similar to hammers employed in typewriting machines of the make referred to, with this exception of providing the hammer with the elongated music face.

It is thought the many advantages of a printing mechanism'in accordance with this invention for use in connection with typewrit-ing machines for printing music signs can be readily understood, and although the preferred embodiment of the invention isas illustrated and described, yet it is to be understood that changes, variations and modifications canbe resorted to which fall within the scope of the invention as claimed.

What I claim is:

1; In a printing mechanism for typewriting machines for typing music a shuttle operating on a vertical axis and including a body portion provided on its outer face with a set of musical characters, certain of the characters of said set of a length substantially equal to the width of said body portion and the remaining characters of said set arranged in a pair of superposed rows extending lengthwise of the body portion from the first mentionedcharacters.

2. In a printing mechanism for typewriting machines for typing music a shuttle operating on a vertical axis and including a body portion provided on its outer face with a set of musical characters, certain of the characters of said set of a length substantially equal to'the width of said body portion and extending transversely of the latter and the remainingcharacters of the set arranged in a pair of superposed rowsextending lengthwise of said body portion from the first mentioned characters, the characters of one of said rows of a size substantially equal to one third of the width of said body port-ion and the characters of the other of said rows of a size substantially equal to two thirds of the width of said body portion.

3. In a printing mechanism for typewriting machines for typing music a hammer of the turret type provided with a carbon face, a regular face, a central face and a music face, said faces arranged in spaced relation and said music face of materially greater length than the length of either the other of said faces and extending above these latter.

4;. In a printing mechanism for typewriting machines for typing music a shuttle operating on a vertical axis and provided with a set of musical characters, a hammer of the turret type provided with a carbon face, a regular face, a central face and a music face, said music face extending above the other of said faces and of a length sub stantially equal to the width of said shuttle, and a ribbon shield interposed between the hammer and shuttle and provided with an opening for the passage of the hammer faces. I

5. In a printing mechanism for typewriters for typing music a shuttle operating on a less size than the characters of the other of said rows, the characters of both of said rows being of less size than the transversely disposed characters, a hammer of the turret type provided with a carbon face, a regular face, a central face and a music face,

said music face extending above the other of said faces and of a length substantially equal to the width of said shuttle, and a ribbon shield interposed between the shuttle and hammer and provided centrally thereof with an opening for the passage of the faces of the hammer.

In testimony whereof, I aflix my signature hereto. 7

WILLIAM A. VALENTINE.

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