Year: 1896

page_text: Date of Application, 20th Nov., 1896
Complete Specification Left. 20th Aug., 1897-Accepted, 25th Sept., 1897
I, HUGH DONALD FITZPATRICK, of 70 Wellington Street, Glasgow, Registered
Patent Agent, do hereby declare the nature of this invention to be as follows:-
This invention relates to music stools and such like and it has for its object to
improve their construction.
In carrying out my invention I employ a treadle or spring movement for
raising the seat instead of the usual screw or cross leg movement.
The movable part of the seat is provided with a downwardly extending bar,
preferably of square section, and provided with holes, recesses, or nicks with (or
in) any one of which a spring locking pin or lever or equivalent can engage (or
enter). Jointed to the lower end of the bar is a connecting rod, which, at its
lower end, is jointed to a crank or arm on a cross bar supported or carried at the
This cross bar may
bottom of the stool and provided with a short treadle lever.
be made of metal alone or of metal cased with wood.
The arrangement is such that by merely depressing the treadle lever by the foot
the seat can be raised.
When a metal cross bar is used and is cased with wood the latter would
be suitably slotted to slide into position.
Under a slight modification a cross bar may be fitted to and work in grooves in
the stool legs and be capable of being depressed by the foot so as to operate the
cross bar.
Under a further modification a spiral or other spring or springs may be utilized
to raise the movable part of the seat upwards. The spring or springs may be
used either alone or in conjunction with the treadle mechanism.
Under a further modification a cam or inclined plane operated by a treadle
may be used to raise the movable part of the seat.
The invention can be applied to either single or double stools. In the latter
case two downwardly extending bars would be used and operated from a single
treadle shaft.
The downwardly extending bar or bars may be made of either wood or metal.
Dated this 10th day of November 1896.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow.
I, HUGH DONALD FITZPATRICK, of 70 Wellington Street, Glasgow, Registered
Patent Agent, do hereby declare the nature of this invention and in what manner
Pine 81

page_text: the same is to be performed, to be particularly described and ascertained in and
by the following statement :---
This invention relates to music stools and such like and it has for its abject to
improve their construction.
In carrying out my invention I employ a treadle movement for raising the sea
instead of the usual screw or cross leg movement.
The movable part of the seat is provided with a downwardly extending, bar
preferably of square section, and provided with holes, recesses, or nicks with (or
in) any one of which a spring locking pin or lever or equivalent can engage (o
enter). Jointed to the lower end of the bar is a connecting rod, which, at its
lower end, is jointed to a crank or arm ou a cross har supported or carried at the
bottom of the stool and provided with a short treadle lever. This cross bar may
be made of metal alone or of metal cased with wood.
When a metal cross bar is used and is cased with wood the latter would
be suitably slotted to slide into position..
Under a slight modification a cross bar may be fitted to and work in grooves in
the stool legs and be capable of being depressed by the foot so as to operate the
cross bar.
The invention can be applied to either single or double stools. In the latter
case two downwardly extending bars would, by preference be used and operated
from a single treadle shaft.
The downwardly extending bar or bars may be made of either wood or metal.
And in order that my said invention may be properly understood I have here
unto appended a sheet of drawings which show, by way of example, a method of
carrying out my invention.
Referring to the drawings:-
Fig. 1 is a front elevation of a music stool.
Fig. 2 is a vertical section on the line art of Fig. 1.
Fig. 3 is an inverted plan.
Figs. 4, 6, 5, and 6 are detail views.
Fig. 7 shows a modification and Fig. 8 shows detail views of the nicked bar b
Fig. 7.
Fig. 9 shows a modification of the lever 1.
On the drawing the same reference letters wherever repeated indicate the same
parts.
a is the stool body, at the legs, and a the movable seat.
The movable seat as has rigidly attached to its underside a downwardly ex-
tending bar of square section having a series of holes e bored through it. dis
the locking pin which is normally forced inwards by the action of the spiral
spring e (see also the detail view Fig. 4). The pin, which works in a hole f in
the body a and hole in the cross bar g, has a collar d' on it against which the
spring bears. The pin is capable of passing through the hole c of the bar b
which is for the time being opposite it and of entering the hole in the cross
bar g h is a knob or handle on the end of the locking pin d.
Pin jointed to the lower end of the bar b is the connecting rod i, which, at its
lower end, is jointed at to the crank arm j of a metal cross bar k working, as
indicated in dotted lines at Fig. 3, in holes or bearings in the cross rails a³ at the
bottom of the stool. The cross bar is shown in detail view at Fig. 6 and it will
be seen that it is provided with a short treadle lever or arm /.
The cross bar instead of being of the shape shown at Fig. 6 can be cast so as
to correspond to the shape of the wood cross rail in and painted or enamelled so as
to resemb.e wood. Or, if preferred, the plain bar k shown may be cased in wood
as indicated at Figs. 1 to 3. In this latter case a hollow wood casing o bored so
as to fit on the bark may be used. This casing, as shown in the detail view
Figs. 5 and 6, has a short alot o' and a long slot (shown dotted) cut in it so that
it can fit properly on the bar and allow space for the crank j and treadle
lever 1.

page_text: If desired a simple treadle lever may be used as indicated at Fig. 9 and be
connected direct to the rod i. The lever would have a pivot working in holes
or equivalent in a single slotted cross bar 2 extending between the bottom rails
of the stool.
In Figs. 7 and 8 the square bar b is made of metal and provided with cross cuts
or nicks q in which a spring locking pin can catch. Fig. 8 is a front view and
section of part of the barb showing the cuts or nicks. The pin works in
bearings s secured to the body a. The pin can be withdrawn from the nicks by
means of a pivotted lever handle t.
t is a metal or wood guide plate secured to the underside of the body a.
vare stops attached to the underside of the seat a. is a stop pin inserted in
the bar b.
The arrangement is, in all cases, such that after first withdrawing the spring
locking pin out of engagement with the bar b the seat can be raised to any
desired height, within a certain limit, by merely depressing the treadle lever
by the foot. The dotted lines Fig. 2 show the seat raised up and when the seat
is so raised the treadle lever and crank are in the position shown in dotted lines
at w Fig. 2.
Instead of making the bar 6 of square section it may be made of triangular
section or of round section with a flat side or part to prevent the bar turning.
The details of construction of the apparatus may be altered without departing
from the invention; thus for instance, the locking pin may be made of any well
known and suitable construction other than the constructions shown.
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 consider novel and desire to claim is :-
1. A music stool or such like having a movable seat which can be raised by
means of a treadle action, substantially as hereinbefore set forth.
2. The combination in a music stool or such like of a movable seat, a treadle
movement for raising the seat and a locking device for locking the seat in position
when raised, substantially as hereinbefore set forth.
3. The general arrangement and combination of parts of the music stool, sub-
stantially as herein before described and shown on the drawings annexed.
Dated this 18th day of August 1897.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow.