Improvements in Piano Stools.
Year: 1892

page_text: Date of Application, 17th June, 1892
Complete Specification Left, 8th Feb., 1893-Accepted, 11th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in Piano Stools.
We, JOHN JOSEPH HERING, Farmer, and JOSEPH JOHN HOHMANN, Cigar
Maker, both of No. 305 Tesler Avenue, Seattle, in the County of King, and
State of Washington, United States of America, do hereby declare the nature of
this invention to be as follows:-
This invention consists of a piano stool which may be used as a single stool or
be quickly adjusted to form a double stool for the use of two persons, the seats
being adjustable vertically to different heights in relation to each other, and which
may be used as a convenient double seat for any purpose whatever.
The stool top comprises two adjustable seats supported on a common base
portion carried by the usual main vertical screw spindle. Each seat top also
screws upon a vertical screw spindle rising from a slide block received in a groove
in the common base of the double seat top. The slide blocks and grooves are of
dovetailed section and the grooves extend in diametrically opposite directions at
either side of the main axis of the compound seat, spiral springs contained in the
slide blocks and grooves tending to draw the blocks inwards towards the main
axis. As each seat is independently adjustable upon its screw, the seats may be
placed at different heights. One seat has a spring pivoted to it which is adapted
to engage with the adjacent side of the other seat, so as to lock the two seats
together when used as a single seat. The catch is operated by a finger lever so
arranged as to enable the catch to be easily operated.
When the stool is used as a single seat the seats are placed side by side and
pushed together against the resistance of the springs and locked together by the
catch. When the stool is to be used by two people the seats, which are of
oblong form, are placed end to end and adjusted so as to suit the height of the
players.
Datod this 17th day of Lune 1000
J. J. HERING,
J. J. HOHMANN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Piano Stools.
We JOHN JOSEPH HERING, Farmer, and JOSEPH JOHN HOHMANN, Cigar
Maker, both of No. 305, Tesler Avenue, Seattle, in the County of King, and
State of Washington, United States of America, 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:-
-
Our invention consists of a piano-stool which may be used as a single stool or
may be quickly adjusted to form a double stool for the use of two persons in
playing a duet, the seats being adjustable vertically to different heights in relation
to each other, so as to suit people of different heights, and which may be used as
a convenient double seat for any purpose whatever. To this end the invention
consists in a stool, the construction of which will be hereinafter described and
claimed.

page_text: Reference is to be had to the accompanying drawings, forming part of this
Specification, in which similar figures of reference indicate corresponding parts in
all the views.
Figure 1 is a vertical cross-section of the stool when adapted for use as an
ordinary single stool.
Figure 2 is a vertical section on the line 2-2 in Figure 3 shewing the stool
arranged as a double seat.
Figure 3 is an inverted sectional plan on the line 3-3 in Figure 2.
Figure 4 is a detail sectional view of one of the seats, shewing more particularly
the fastening apparatus by which the seat is secured to an adjacent seat.
and
Figure 5 is a detail end view of the base plate and one of the slides therein,
Figure 6 is a detail sectional view of the fastening latch and its releasing lever.
The stool top comprises two adjustable seats 23 supported on a common base
portion 10 which is thickened in the middle as shewn at 11 and is carried by the
usual main vertical screw spindle 12 which turns in the nut 13 which is provided
with outwardly-branching legs 14 these legs being preferably arranged so as to
have the greatest spread in the direction of the greatest length of the seats when
adjusted for two persons, thus giving the stool the necessary strength. The base
plate 10 is slotted longitudinally on the upper side, as shewn at 15, and the central
portion of the slot or groove is covered by a plate 15" which prevents the clothing
of people on the stool from getting in the slot or groove.
The slot or groove 15 is dovetailed so as to hold in place a slide block 16, there
being a slide block on each end of the base plate and each block is provided with
a longitudinal bore 17 opening at the inner end of the block this block being made
to hold a spiral spring 18 which extends longitudinally of the groove 15 and is
coiled around a guide rod 19, the latter entering the bore 17 when the slide block
is pushed inward and thus serving to hold it in place. The tension of the springs 18
is such as to normally draw inward the slide blocks 16. On each slide 16 is an
upwardly-extending screw 20 which enters a fixed nut 21 held by arms 22 to the
under side of each seat 23, the seat being upholstered, as shewn at 24 in the usual
way, and having depending sides 25 which thus form a recess on the under side of
the seat, and the recess provides room for the movement of the stool seat upon
the screw 20. It will be seen, then, that as each seat 23 is independently adjust-
able upon its screw 20 the seats may be placed at different heights. On the under
side and at one edge of one seat 23, there is a laterally-extending latch 26 which
is fulcrumed near the centre, as shewn at 27 and which has a catch 28 at its outer
end, this being adapted to engage a plate 26ª on one side of the adjacent seat.
The catch 28 is normally pressed upward so as to engage the plate 26ª by a
spring 29, one end of which presses downward on the inner end of the latch and
the other end of which is fixed to an adjacent portion of the seat. A lever 30 is
fulcrumed on the inner side of the seat and this lever has one free end 31 which
is held upon the outer portion of the latch 26, as best shewn in Figure 6 and the
opposite end of the lever terminates in a finger piece 32, held adjacent to one end
of the seat 23. It will be seen then, that to release the latch it is only necessary
to press upward on the finger piece 32 as this will depress the opposite end of the
lever and tip down the latch 26.
When the stool is used as a single seat, the seats 23 are placed side by side and
pushed together against the resistance of the springs 18 and the catch 28 auto-
matically engages the plate 26, as shewn in Figure 1. When the stool is to be
used by two people, the seats 23 are placed end to end as shewn in Figure 2 and
adjusted so as to suit the height of the players.
We have shewn a particular kind of fastening device for securing the two seats
together, but it will be understood that any equivalent fastening may be substituted
without departing from the principle of the invention.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is-
1. As an improved article of manufacture, a piano stool having independent
seats mounted on a common base substantially as described.
2. As an improved article of manufacture, a piano stool having independent
adjustable seats, substantially as described.
3. A piano stool comprising a base plate mounted on legs and independent and
vertically-adjustable seats supported on the base plate substantially as described.
4. A piano stool comprising a base plate mounted on legs, independent adjust-
able seats mounted on the base plate, and a fastening device for attaching the seats
together, substantially as described.
5. A piano stool comprising a base plate mounted on a support, a pair of
independently-adjustable and elongated seats held to slide on the base plate, and
means for fastening the longer sides of the seats together, substantially as
described.
6. A piano stool comprising a base plate mounted on a support and having a
longitudinal slide-way therein, spring-pressed slides held to move in the slide-way,
vertically-adjustable seats carried by the slides, and a fastening device to secure
the seats together, substantially as described.
7. A piano stool comprising a base plate mounted on a support and having a
slide-way therein, spring-pressed slides held to move in the slide-way, each slide
carrying a vertical screw, seats mounted adjustably on the screws, and a fastening
device to secure the seats together, substantially as described.
8. A piano stool comprising a vertically-adjustable base plate, seats carried by
the base plate, and means for adjusting each seat vertically, substantially as
described.
..
OLG
UI EGULURI Y
1000
1000
CALCU UN OLL UY UNCULUIY LOND
J. J. HERING,
J. J. HOHMANN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.