US912685A - Device for teaching music. - Google Patents

Description

L. A. JAROS.

DEVICE FOR TEACHING MUSIC.

APPLICATION FILED MAY a, 1908.

Patented Feb. 16, 1909.

- handle F,

LADISLAW A. JAROS, OF CHICAGO, ILLINOIS.

DEVICE FOR TEACHING MUSIC.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Application filed May 8, 1908. Serial No. 431,683.

To all whom it may concern:

Be it known that I, LAnisLAw A. JAROS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improveical music ladders and music charts, and has for its object to rovide a device of this character, which wil sound the notes, or, in other words, give the pitch of the notes which are made to appear on the staff.

Another object of this invention is to pro vide a device of this character in which the reeds or pitches are made to vibrate or sound automatically.

Another object of the invention is to provide a device of this character with which any note can be presented on the staff by the instructor or operator and simultaneously sounded, thus placing a note before the pupil and at the same time giving the pitch of that note.

With these and other objects in view, as will more fully appear, the invention consists in the novel construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and minor details of the structure may be made without departing from the spirit or sacrificing any of the ad vantages of the invention.

In the accompanying drawings, Figure 1, is a front elevation of my improved device; Fig. 2, is a side elevation thereof; Fig. 3, is a plan of the device after the removal of the top of the case; Fig. 4, is a front elevation after the removal of the face A, and plate E; Fig. 5, is a side elevation, partly sectional, after the removal of the side of the case, the

and the crank (Z. Fig. 6, is a perspective view, to which I will refer hereafter.

The invention is illustrated as embodied in a mechanical music ladder, consisting of a case having a to bottom, sides, back and face. The face is white and has on it the staff B, and clef 0. That section of the face A, within the dotted lines, marked D,

(see Fig. 1) is made of glass or some other transparent material and has behind it the plate E. The said plate E, is white and its object is to make the said transparent section D, appear similar to the whole of the said face A. In other words, the said plate E, will be seen through the transparent section D, and the entire face will appear opaque and uniform in color.

The handle F, has rigidly secured to it the slide bar G, which asses loosely through the case by means of aperture H, and slides loosely inward and outward in the carriage I. The said slide bar G, has a hole through which passes the arm J. (See Fig. 6). The said arm also passes through the carriage I and swings on the said carriage I, at the point L (see Fig. 3). The free end of the said arm J, has rigidly hinged to it the disk M. The said disk M, is made of any suitable material and is colored black. It will now be seen that when the handle F, is pulled outward from the position shown in Fig. 3, the slide bar G, will swing arm J, to the right thus drawing the disk M from between the transparent section D, of face A and the plate E. After the disk M, is thus withdrawn it can be raised or lowered to any desired line or space of staff B, by a pressure upward or downward on the handle F. The said pressure will be transmitted to the carriage I, by means of the slide bar G, and will cause the said carriage I, to travel along the shafts N, by virtue of the wheels 0, to the desired elevation carrying arm J, and disk M, with it. In other words, by raising or lowering the handle F, the carriage I will travel correspondingly along the shafts N, carrying the arm J, and disk M, to the said desired elevation. After thus bringing the said disk M, to the desired elevation a pressure inward on handle F, will cause slide bar G, to swing arm J, to the left and the said arm J, will insert the disk M, between the trans arent section D, of face A, and the plate E, tffus presenting a note on the staff B.

The upright piece P, has rigidly secured on one side of it the plate R, (see Figs. 1 and The said olate R, has adjusted on it a series of musical reeds S. Each of the said reeds is tuned to give the pitch of its respective note and is adjusted on the said plate It, relatively to the line or space of the staff B, upon which its respective note appears. The said reeds S, have their respective holes or vents T, through the upright P, and their respective valve caps U, which are held down by their springs V, over the said holes T. The said valve caps U, have rigidly secured to them their respective valve levers W. It will now be seen that when a pressure put-on the said lever N, to which the valve cap U, is at-' tached, will pull the said valve cap U, away from the upright piece I", thus giving vent to its respective hole T, and reed S.

Heretofore it was explained that when the handle F, is pulled outward from the position shown in Fig. 3, the arm J, will be swung to the right by means of the slide bar G, and will pull the disk M, from between the transparent section D, of face A, and the plate E, thus causing the note to disappear from the staff B. It will now be seen that as the arm J, swings to the right, the arm Y, which is rigidly secured to arm J, (see Fig. 3) will release the pressure from the valve lever N, and will allow the respective valve to close. It has been heretofore explained that after the disk M, is

thus withdrawn from between the transarent section '1), of face A, and the plate 4, it can be raised or lowered to any desired line or space of staff B, by a pressure upward or downward on the handle F. The said pressure will be transmitted to the carriage I, by means of the slide bar G, and will cause the said carriage I, to travel along shafts N, and N, by virtue of the wheels 0, to the desired elevation, carrying arm J, and disk M, with it. After thus bringing the handle I to the desired elevation a pressure inward on the said handle F, will cause slide bar G, to swing arm J, to the left and the said arm J, will insert the disk M, between the transparent section D, of face A, and the plate E, thus presenting a note on the staff B. Simultaneously the arm Y, which is rigidly secured to arm J, (see Fig. 3) will press the respective valve lever W', of the note thus presented, and give vent to the respective reed, tuned to sound the pitch of the said note. To supply the air necessary to sound the said reed, I have the chamber Z, (see Fig. 3) connected with the bellows, a. The said bellows a, is operated by means of lever 71, shaft 0, and crank handle (Z. Thus when the crank handle (Z is pushed backward, (see Figs. 1, 4 and 5) it will turn shaft 0, which has rigidly secured thereon the lever b. The said lever Z) works the bellows which force air through the connecting chamber 6, (see Fig. 3) into the chamber Z, and through the said open valve, thus sounding the respective pitch of the note presented on the staff.

In the specification for the purpose of clearness, I have illustrated my invention as embodied in a mechanical music ladder, but it is to be understood that I do not limit myself thereby to the use of the particular music ladder illustrated in my specification, inasmuch as I can embody my invention in any other music ladder or music chart erases I without departing from the principle of my invention or sacrificing any of its advantages.

What I claim as new, and desire to secure by Letters Patent, is:

1. In a device of the class described the combination of a box or case having a stall and clef on the face thereof, a device representing a note, a hand crank suitably placed on the outside of said case, a rod rigidly attached to the said crank and extending into the said case through a suitable opening, journals in which the said rod is held, a be llows placed inside the said case, a vertically extending arm attached to the inner extremity of the said rod and adapted to operate the said bellows, a narrow vertically ex tending air chamber placed inside of the said case and close to one of the sides thereof, an air channel connecting the said air chamber with the said bellows, a series of musical reeds horizontally laced in a vertical row on a wall of the said air chamber, holes or vents through the said wall corresponding to and directly opposite the reeds, valve caps adapted to close and open the said vents, springs cooperating with the said caps to retain them firmly over the said vents, valve levers rigidly secured to the said caps and adapted to be swung on fulcrums situated in a vertical row on the said wall, an arm for operating the said levers and a horizontally sliding member for operating the said arm, the said arm and said member being adapted to be vertically raised or lowered to any desired valve lever.

2. In a device of the class described the combination of a music staff, a device representing a note an operating member adapted to be raised and lowered with the said note device, a series of valves suitably placed in a vertical row relatively to the lines and spaces of the said music stafi the said valves being adapted to be operated by the said operating member, a series of musical reeds each placed in cooperative relation with its respective valve, and tuned to the pit-ch of its respective note and means for supplying air to the said reeds.

3. In a device of the class described the combination with a case or boX having a staff and clef on the face thereof a device representing a note, an elongated vertical aperture in one side of the case a horizontally reciprocating member extending into the said case through the said aperture, means for raising and lowering the said note device and horizontally reciprocating member a valve operating arm carried by the said horizontally reciprocating member, a series of valves suitably placed in a vertical row relatively to the lines and spaces of the said music staff, the said valves adapted to be operated by the sa1d valve operating arm, a serres of musical reeds, each reed placed in c0- operative relation with its respective valve and tuned to the pitch of its respective note, a bellows for supplying air to the said reeds, a handle suitably placed on the outside of the said case for operating the said bellows and intermediate means for transmitting motion from the said handle to the said bellows.

at. In a device of the class described the combination of a valve operating member a horizontally reciprocating bar carrying the said valve operating member a device representing a note means for raising and lowering the said note device and said bar a music staff, a series of valves suitably placed in a vertical row relatively to the lines and spaces of the said music stail upon which the said note device represents notes, the said valves adapted to be operated by the said valve operating member, an upright strip, a series of holes or vents through the said upright strip placed in cooperative relation with the said valves and adapted to be closed and opened thereby, a series of musical reeds each placed in its respective hole or vent and tuned to the pitch of its respective note and means for supplying air to the said reeds.

5. In a device of the class described the combination with a vertically reciprocating operating arm and a vertically reciprocating device representing a note, of a face or front having a music staff and clef thereon, a series of valve levers a series of valve caps a series of musical reeds tuned to the respective pitches of music notes presented on the said music stafi by the said note device, a bellows located inside the case of the said device for supplying air to the said reeds, an arm for working the said bellows, a shaft for rocking the said arm, the said shaft extending out of the case through a suitable opening, and a handle rigidly secured to the said shaft.

6. In a device of the class described the combination of an operating arm, a music staff a device representing a note adapted to travel over t e said music staff, an upright strip, a series of valve caps corresponding in place and number to the lines and spaces of the said staff, a series of members for operating the said valve caps intermediate between the said valve caps and the said operating rm and adapted to be operated by the said operating arm, a vertical row of holes or vents through the said upright strip corr sponding in place and number to the said valve caps, a series of springs cooperating with the said valve caps to hold them firmly over the said holes or vents, a series of musical reeds placed respectively to the said holes or vents, a vertically extending air chamber adjacent to the said upright strip and adapted to supply air to the said holes or vents, a bellows, an air channel connecting the said air chamber with the said bellows, an upward extending arm for operating the said bellows, a rod for operating the said arm and a handle for operating the said. rod.

In testimony whereof, I have hereunto signed my name to this specification, in the presence of two subscribing witnesses, this fifth day of May, 1908, at Chicago, Illinois.

LADISLAXV A. JARPS.

Witnesses MAX ScHULz, OTAKAR J. BRABEC.

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