and similar Instruments.
Year: 1885

page_text: Accordions and similar Instruments.
I, WILHELM SPAETHE of Gera, Reuss in the German Empire, Musical Instrument
Manufacturer do hereby declare the nature of said invention for "IMPROVEMENTS
IN THE CONSTRUCTION AND MOUNTING OF THE KEYS OF ACCORDIONS AND SIMILAR
INSTRUMENTS" to be as follows:-
The keys are each formed of one piece of metal bent or pressed to the form of
a two armed or bell crank lever having a tube like orifice at the junction (or
thereabouts) of the two arms, the said tube like orifice taking on to a wire or small
spindle fixed so as to pass along the key board of the instrument thus forming a
hinge on which each of the keys may oscillate. To one of the outer ends of the
lever is fixed a button or other suitable fingering piece and to the other the valve
corresponding to it.
תנית
BALL 3
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EMIL CAPITAINE,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction and Mounting of the Keys of
Accordions and similar Instruments.
I, WILHELM SPAETHE of Gera, Reuss, in the German Empire, Musical Instrument
Manufacturer do hereby declare the nature of said invention for "IMPROVEMENTS
IN THE CONSTRUCTION AND MOUNTING OF THE KEYS OF ACCORDIONS AND SIMILAR
INSTRUMENTS" and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:—
According to this invention the keys of accordions and similar musical instru-
ments are each formed,-together with the lever for operating its corresponding

page_text: valve or equivalent part,-out of one piece of metal or other suitable hard material
which is bent or pressed to the shape of a two armed or bell crank lever having a
tube like orifice at the junction (or thereabouts) of the two arms, the said tube like
orifice taking on to a wire or small spindle fixed so as to pass along the key board
of the instrument, thus forming a hinge joint on which each of the keys may
oscillate. To the outer or playing ends of the keys or levers may be fixed buttons
or other suitable fingering pieces as well as any other attachments that may be
deemed convenient without affecting the construction in one single piece of material
of the key or lever proper. To the opposite end of the key or lever is fixed the
valve corresponding to it or its equivalent.
Referring to the accompanying sheet of drawings in which similar letters of
reference indicate like parts.
Fig. 1 shews the inside of a key-board of an accordion, and Figs. 2 and 3 are
respectively detail views on a large scale shewing the construction and manner of
mounting the keys.
a is the key-board, a¹ a recess formed in the same; b the keys or levers; c the
buttons or fingering pieces; d the wire or small spindle on which the keys or
levers are mounted; e the valves; f is a spring against the resistance of which the
key or lever is pressed, and g is a screw which connects the button and spring to
the key or lever.
Figs. 4, 5, and 6 are views similar to those previously described, the construction
and arrangement being modified for the case of long piano keys or levers.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In accordions and similar musical instruments the use of keys or levers made
in one piece of metal suitable for mounting on a wire or small rod substantially as
described and illustrated.
2. In accordions and similar musical instruments the combination of keys or
levers made in one piece of metal with a wire or small rod substantially as described
and illustrated and for the purpose specified.
Dated this 20th dow of December Teok