A Tuning Pin for Pianofortes and other Stringed Musical Instruments.
Year: 1895

page_text: Date of Application, 27th May, 1895
Complete Specification Left, 7th Feb., 1896-Accepted, 14th Mar., 1896
PROVISIONAL SPECIFICATION.
A Tuning Pin for Pianofortes and other Stringed Musical
Instruments.
I, LOUIS ALPHONSE WILLIAM SARRAMIAC, of 12, Cours Washington, Agen,
(Lot et Garonne), France, Dealer in Pianos, do hereby declare the nature of this
invention to be as follows:-
My invention bas for its object to provide a tuning pin for pianos and other
stringed instruments whereby accurate tuning of the instrument is more easily
obtained and is maintained for a much longer period than with the ordinary wrest
pins, which are liable by frequent turning to yield under the tension of the strings.
My improved tuning pin is a wrest pin provided with one or more eccentric cams
and fixed in the wrest plank in such position as to bear against the string so as to
slightly deflect it when the tuning pin is turned for the purpose of tuning the
string.
In the accompanying drawing, forming part of this Specification,
Figures 1 and 2 represent side and end views of two forms of the improved
tuning pin.
Figure 3 is a sectional elevation, and Figure 4 a face view of part of the framing
of a piano, shewing the tuning pin applied.
The same letters of reference denote like parts in all the figures.
d is the ordinary wrest pin and a is the tuning pin provided with an eccentric
cam b. The pin, which may be screw-threaded, is mounted in the wrest plank c
between the ordinary wrest pin d and the wrest plank bridge e, the string being
tangential to the cam b. The string fis put in tension by means of the ordinary
wrest pin d and tuned by slightly turning the tuning pin a so as to cause its cam b
to deflect the string, as shewn in dot and dash lines in Figure 4. By this means
great accuracy and permanency of tuning is obtainable.
In Figure 2 the tuning pin a is provided with two cans b by either of which
pressure can be applied to the string, according as the pin is turned to the left or
right.
Dated this 27th day of May 1895
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
A Tuning Pin for Pianofortes and other Stringed Musical
Instruments.
I, LOUIS ALPHONSE WILLIAM SARRAMIAC of 12, Cours Washington, Agen
(Lot et Garonne) France, Dealer in Pianos, 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 :-
My invention has for its object to provide a tuning pin for pianos and other
stringed instruments whereby accurate tuning of the instrument is more easily

page_text: obtained and is maintained for a much longer period than with the ordinary wrest
pins which are liable by frequent turning to yield under the tension of the strings.
My improved tuning pin is a wrest pin provided with one or more eccentric cams
and fixed in the wrest plank in such position as to bear against the string so as to
slightly deflect it when the tuning pin is turned for the purpose of tuning the
string.
My invention is illustrated in the drawing accompanying my Provisional
Specification in which
Figures
tuning pin.
and 2 represent side and end views of two forms of the improved
Figure 3 is a sectional elevation and Figure 4 a face view of part of the framing
of a piano, shewing the tuning pin applied.
The same letters of reference denote like parts in all the figures.
d is the ordinary wrest pin and a is the tuning pin provided with an eccentric
cam b. The pin, which may be screw-threaded, is mounted in the wrest plank c
between the ordinary wrest pin d and the wrest plank bridge e, the string being
tangential to the cam b. The string is put in tension by means of the ordinary
wrest pin d and tuned by slightly turning the tuning pin a so as to cause its cam b
to deflect the string, as shewn in dot and dash lines in Figure 4. By this means
great accuracy and permanency of tuning is obtainable.
In Figure 2 the tuning pin a is provided with two cams 6 by either of which
pressure can be applied to the string, according as the pin is turned to the left or
right.
It is to be understood that the forms, dimensions, and materials employed in the
construction of my improved tuning pins, may be varied to suit the nature of the
applications, without departing in any way from the principle of my invention.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed 1 declare that what
I claim is :-
:-
A tuning pin for the strings of pianos and other stringed instruments, having
one or more cams or levers b acting on the string in the manner described, in
conjunction with the ordinary wrest pin to which the string is attached as
specified.
Dated this 6th day of Februan 100
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.