Wrist-Guide and Foot-Guard for Pianos. Page: 3 of 4
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UNITED STATES PATENT OFFICE.
LEVI WATSON NORCROSS, OF PARIS, TEXAS.
WRIST-GUIDE AND FOOT-GUARD FOR PIANOS.
SPECIFICATION forming part of Letters Patent No. 582,673, dated Iay 18, 1897.
Application filed September 1, 1896. Serial No, 604,568, (No model.JTo cell hom, it naiCy conceribn:
Be it known that I, LEvi \ T TSON NoR-
CROSS, a citizen of the United States, residing
at Paris, in the county of Lamar and State
5 of Texas, have invented a new and useful
Wrist-Guide and Foot-Guard for Pianos, of
which the following is a specification.
lly invention relates to a piano attachment
consistingof an adjustable wrist-pin and foot-
Io guard adapted to serve as a means for secur-
ing the proper position of the wrist and fore-
arm in practice and also adapted to protect
the front panel of the instrument and serve,
with children, as a foot-rest.
r5 Further objects and advantages of this in-
vention will appear in the following descrip-
tion, and the novel features thereof will be
particularly pointed out in the appended
claims.
20 In the drawings, Figure 1 is a perspective
view of a device constructed in accordance
with my invention applied in the operative
position to a piano, the same being shown ar-
ranged as a wrist-guard. Fig. 2 is a similar
25 view showing the same applied as a foot-
guard. Fig. 3is an inverted perspective view
of the attachment. Fig. 4 is an inverted plan
view, partly in section.
Similar numerals of reference indicate cor-
30 responding parts in all the figures of the draw-
ings.
The attachment embodying my invention
consists of parallel side brackets 1, provided
with horizontal slots 2, said brackets being
35 adapted to be secured, by means of base-plates
3, to the under side of the keyboard of a piano,
and sectional extensible side arms slidably
connected to the brackets for swinging move-
ment in verticalplanes and connected at their
40 outer extremities by a cross-bar 4. The cross-
bar is preferably constructed of an exterior
metallic tube 5, having a core 6, of wood or
equivalent material, and it is preferably se-
cured to the outer extremities of the arms by
45 means of screws or bolts 8, provided with or-
namental heads 9.
Each arm consists of a plurality of sections
connected for relative sliding movement, the
inner or pivotal section 10 having a terminal
5o pivot or stud 11, which extends through the
slot 2 in the contiguous bracket and is en-
gaged at its extremity by a thumb-nut 12 toprevent accidental displacement, and the
outer or bar-carrying section 13 being mount-
ed to slide upon the inner or pivotal section 55
by means of a stud or pivot 14, which extends
laterally through a longitudinal slot 15 in
said outer or bar-carrying section and is en-
gaged, to prevent accidental displacement,
by a thumb-nut 16, said stud and thumb- 60o
nut serving as a locking device to secure the
sections at the desired relative extension.
The inner or pivotal section or member of
the arm is also provided with a longitudinal
slot 17, through which and the alined slot in 65
the outer or bar-carrying arm is adapted to
extend a clamping-bolt 18, having a thumb-
head and engaged at its extremities by a
nut 19, which is held from independent ro-
tation by bearing at one edge against the 70
base 3 when the parts are in the positions
illustrated in Fig. 4. This clamping-bolt is
adapted to extend through a perforation 20
in the front end of the bracket and also
through the alined slots in the sections or 75
members of the contiguous arm to secure the
device in its folded or inoperative position,
and it is obvious that the arms may be ex-
tended to arrange the cross-bar in the desired
position-for instance, in advance of the front So
edge of the keyboard-and that the parts may
be locked at the desired adj ustment by tight-
ening the clamping-bolts 18 and the locking
devices comprising the studs 14 and thumb-
nuts 10. The outer extremities of the inner 85
or pivotal sections 10 are preferably concaved,
as shown, to receive the inner or rear side of
the cross-bar.
By removing the clamping-bolts and ex-
tending the inner sections of the arms (after 90
loosening the thumb-nuts 12 and ii) the outer
sections may be turned at an angle to the in-
ner sections to arrange the cross-bar contigu-
ous to the plane of the keys to serve as a
wrist-guide, as shown in Fig. 1, and the in- 95
ner section of the arm, after having been ad-
justed forwardly to the proper point, should
be secured in position by inserting the clamp-
ing-bolt through the opening 20 and the slot
in said inner section, with its nut 19, in con- Ico
tact with the outer surface of the inner sec-
tion. The tightening of the various clamp-
ing and locking devices will secure the parts
in operative position.
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Norcross, Levi Watson. Wrist-Guide and Foot-Guard for Pianos., patent, May 18, 1897; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174614/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.