DE144723C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The aim of the present invention is the greatest possible utilization of the octave couplers (as fully valid registers 16 'and 4') with the easiest handling by a registration device. It consists of a replacement octave coupler for the last octaves in the bass and treble with a double octave coupler and a new registration device.
On the drawing show:

Fig. Ι a cross section of the device according to xx (Fig. 2 and 5),

Fig. 2 is a top view of the sound post with the keys c,

Fig. 3 is a top view of the octave coupler d for the lower octave,

Fig. 4 is a top view of the octave coupler ο for the upper octave,

Fig. 5 is a bottom view of the sound post with the game valves w and v.

The octave coupler substitute is used to supplement the last octaves in the bass and treble that are missing in the octave couplers. For illustration, the average of Fig. 1 is intended to be the bass of a two-play harmonium. 8 ^r and 4 'are the through tongues, w is the corresponding lash valve and α the lash valve lifters. On the other hand, 16 'and 8' are the octave coupler replacement reeds, ν the associated special play valve and b the play valve pusher.

If the octave coupling is put into action, it can only act in the previous manner on the play valve tappet α on the play valve n> of the continuous tongues 8 'and 4'. If, however, the keys of the last octave are pressed down themselves, the octave coupler substitute reeds in the bass 16 'and 8' come into operation through the second valve tappet b and the play valve ν instead of the octave coupler.

The register keys to the octave coupler replacement reeds can, as shown in the drawing can be seen, are connected to the octave coupler in all smaller works.

In the case of larger works, however, Aven have at least some special stops for the Octave coupler replacement reeds are provided.

The compression springs to the game valves ν and w (Fig. 5) are intended to be inclined so that a second guide pin can be dispensed with.

Since the octave couplers have become more valuable due to the octave coupler reeds and act as complete registers, two octave couplers o and d (Fig. 1) that work continuously are attached. The lower octave coupling d , which acts downwards, is supported in the middle by supports s .

The upper, upward-acting octave coupler is provided with flat iron on both sides to increase its load-bearing capacity and is also supported (for couplers longer than four octaves) when in use on the lower octave coupler d, namely the support points t in the circuit are the pivot points of both Octave couplers attached so that each individual octave coupler can be used without any obstacles.

The advantages of both double octave couplers, now acting as a full register, are evident of the hand. However, when playing, both octave couplers act on some tones of the middle register together. This latter, apparent error, however, is the greatest gain of both octave couples.

Instead of the 4 'and 16' reed stops if only the two continuous octave couplings are used, every piece of music sounds orchestrially correct, without the previous

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hedge Non-musical amplification of the notes in the middle register, which is achieved when using the double octave coupler for the 16 'and the 4' cannot take place.

To comfortably in more prohibitive levels and correct, especially to be able to register the Oktavkoppelersatzzungen, a registration device is gmfp (Fig. 1) is provided, in which by a small tightening the Registerzugstange a provided with the spring movable hook g / to the Registerabhebeleiste 2? postpones.

The latter lifting bar ρ is lifted by the toggle lever and influences all registers connected to the hook /.

For easier handling when registering, a sheet metal angle η can also be attached, on which the pressure levels of the toggle lever ι and 2 or also 1, 2 and 3 are noted.

The latter sheet metal angles, which are located just behind the keys, are needed beforehand or just press with one finger during the game to select the register you want to be switched on in the knee lever.

A finger pressure on the register button, on the other hand, switches the relevant register again the end.

The hooks / are in three, at least, as indicated in the drawing, two lengths made so that the steps mentioned above arise in the toggle lever. The first pressure stages of the knee lever make the continuous tongue registers sound.

The last pressure stage of the toggle lever only affects the octave coupler, as well as at the same time the associated and registered octave coupler substitute reeds, so that the latter Replacement tongues and couplers can only come into action evenly.

From the latter it can now be seen what advantages the registration device has in terms of recovery the octave reed replacement register offers. In addition, each piece of music can be played beforehand be registered. The desired weakest game is drawn and the further desired ones Games switched on by said device in the knee lever, which sound in as many stages as the hooks / the device have been given different lengths.

Thanks to the octave coupler reeds, harmoniums of this type have a uniform shape Get a range of two full octaves more. A harmonium with four octaves sound post and keyboard thus dominates a full six octave range. As a result, one can order a harmonium make a half or a whole octave shorter and still win against previous arrangements one or one and a half octaves of tonal range, with the additional cost of the octave coupler replacement reeds Abundant savings can be made, as well as a continuous 16 'and 4' etc. thanks to the octave coupler replacement reeds is won.

Claims (3)

Patent Claims: 1. Keyboard instrument with reeds or whistles, characterized in that the tones missing in the previously common octave coupler in the upper and lower octave as much as possible in the same number of registers in the last octave of the bass and the treble through special reeds or pipe registers in the sound post supplemented and this octave coupler replacement register are provided with a special game valve (v) , which in turn by a second, special game valve pusher (bj, which is attached for the last twelve keys in the bass and treble, either directly through the keys (Fig. 1) or is also opened indirectly by lever transmission. 2. An embodiment of the keyboard instrument marked under 1., in which the two continuous, upward and downward acting octave couplers (0 and d) are arranged one above the other and the upper octave coupler (o ) rests in the middle on supports ' (t) , which are mounted on the lower octave coupler (d) in such a way that the contact surfaces of both octave couplers lie in their pivot points, so that both octave couplers can be used as required without interfering with one another. 3. Keyboard instrument according to claim 1, characterized in that the setting of a single or both octave couplers with the octave coupler replacement reed registers can be properly prepared by switching on the toggle lever by a movable hook (f) of the register pulling device (g, m, f and p) ( Fig. 1) pushes itself through a small tightening of the register pull rod (g) on the lever bar (p) connected to the toggle lever and on the other hand when pushing back the pull rod (g) the connection with the toggle lever can be released again, so that only from all registers those registers come into operation through the knee lever pressure, of which the hook (f) of the registration mechanism (g mf) has pushed itself onto the lever bar (p) by tightening the register pull rod (g). For this purpose ι sheet of drawings.