UEIM DI MULTICATION Improvement in Trombones.
Year: 1889

page_text: Date of Application, 9th Aug., 1889-Accepted, 14th Sept., 1889
COME UEIM DI MULTICATION
Improvement in Trombones.
I, AUGUSTE MILLE, Manufacturer of Brass Musical Instruments, of 88 rue des
Marais, Paris, France, do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:—
The invention relates to an improvement in trombones and consists in playing the
instrument by causing the slide to work from the upper end of the instrument instead
of from the lower end as hitherto.
The new system has the effect; 1st of doing away with the long movements of the
arm, which cause a certain amount of fatigue, and render the instrument unplayable
for persons having short arms; 2nd, of producing truer or purer notes than by the
old system.
The improvement is illustrated in the accompanying drawing, in which :-
Fig. is a side view of a trombone, showing the slide a pushed down from above
to the end of the two reception tubes and 6. These two reception tubes band b
are themselves prolonged the length desired, so that the movement of the slide from
above has the necessary travel to produce the musical notes.
Fig. 2 is a similar side view partly in section, of a trombone, showing the slido a
in its middle position. A spiral spring e enclosed in the reception tube b serves to
automatically lead the slide back to such middle position.
The musical notes that are obtained in causing the instrument to operate from
above as described, are as follows:-
The slide remaining in the middle position, which is shown in Fig. 2 of the
drawing, gives B flat; by raising it to the end, it will give flat and if needful
B natural; one centimetre higher will give D natural. When right home E flat and
Gflat, nearly at the end A flat vory correctly; at the bottom, C flat and B natural;
also at the bottom the contra D flat; when pushed in one centimetre the contra
1 natural very correctly in descending and being pushed in, it will give G flat or
Fsharp, C flat or B natural; the tone of B natural is very good.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to he performed, I declare that what I
claim is:-
--
1. The new system of construction of trombones, which enables same to be played
by causing the slide to work from above instead of from below as hitherto, such new
system producing the following results :-(A) of abolishing the long movements of
the arm and the fatigue caused thereby, at same time rendering the instrument avail-
able for persons having short arms; (B) of producing more correct or purer notes
than can be obtained by instruments in which the slide is lengthened from below.
2. The modifications in the construction of trombones consisting in :-(A) the
prolongation of the slide above, replacing a corresponding prolongation below;
(B) A reasonable equivalent prolongation of the two reception tubes; (C) The use
of a spiral spring enclosed in one of the reception tubes, which spring in expanding
automatically returns the slide to its middle or normal position, the whole substantially
as described and shown.
Dated this 8th day of August 1889.
ALLISON BROS.,
Agents for the Applicant.