An Improved Metronome.
Year: 1890

page_text: Date of Application, 9th Aug., 1890
Complete Specification Left, 5th May, 1891-Accepted, 20th June, 1891
PROVISIONAL SPECIFICATION.
An Improved Metronome.
I, ARTHUR GOUGH PINFOLD, of Northgate, Cleckheaton, in the County of
York, Watchmaker, Silversmith and Optician, do hereby declare the nature of this
invention to be as follows:-
The object of the present invention is to provide a simple, cheap, efficient,
noiseless, and readily portable metronome or instrument capable of being adjusted
so as to oscillate any required number of times per minute, and which may be
employed for indicating or marking different times in music, or for rating and
adjusting horological instruments, such as watches, chronometers, etc. The improved
metronome has no springs, weights, escapement, wheels or other parts which can
get out of order, and it is always ready for use, as it can be placed and made to
operate upon a shelf or other convenient projection, or even upon the finger, or a
special stand may be provided to support samme, the whole being capable of being
enclosed in a suitable case and carried about the person.
My invention consists essentially in a curved or bent frame, which may be of
C form, the bottom of which is weighted, while on the under side of the top of such
frame a suitably shaped support or bearing surface is provided, upon which the
instrument oscillates when in operation. From the upper side of the top of the
frame a straight bar extends upwards and constitutes a slide upon which the sliding
weight to regulate the number of beats is mounted, such bar being marked with
divisions and terms used in music, showing the position to which the weight must
be shifted to produce the number of beats required, the same as in metronomes of
known construction.
The instrument thus constructed is complete in itself, and by suspending same by
the bearing surface on the under side of the top of the C-frame, upon a shelf or
other convenient part, or even upon the finger, and imparting an oscillating
movement thereto, such movement will continue for a considerable period, the rate
of oscillation depending upon the position to which the sliding weight has been
shifted along the slide projecting up from the top of the frame.
The slide may be mounted on the top of the C-frame so that it can slide through
same, or be folded in relation thereto when not in use, thus reducing the size of the
instrument and enabling it to be more conveniently carried about the person without
damaging it, either in a case or not.
The bearing surface may be of curved form or a knife edge, but in order to
reduce the friction thereon to a minimum and thereby increase the duration of its
operation for a single impulse imparted to the instrument, it is preferable to make
such bearing surface in the form of a pin or pins, preferably two.
A suitable stand may be provided for the instrument, having preferably at top
a part or support to receive the bearing surface of the C or other frame of such
instrument, a suitable form of stand consisting of a set of legs to or upon the top of
one of which the support to receive the bearing surface of the instrument is secured
or mounted. The legs constituting the stand are preferably hinged or pivotted
together so that they can be folded or turned flat all in the same line, and thus
enable the stand and the instrument (which is also flat) to be placed in a small case,
so as to be more convenient for transport, such case being capable of being placed
in the pocket.
The support on the stand and which is to receive the bearing surface of the
instrument may be of any suitable material (metal, india rubber, etc.) and of any
suitable form to suit the shape or nature of such bearing surface When the latter
is convex the support may be in the form of a corresponding concave recess; or the

page_text: bearing surface may be in the form of a concave recess and the support be convex.
For a knife edge bearing surface the part to receive the knife edge may have a
slight cut or recess.
When the bearing surface consists of two pins, the support on the stand is
preferably in the form of a pulley preferably grooved and either stationary or
mounted upon a pivot, or in the form of a ball, as this construction will enable the
instrument to always hang true, even when the stand is placed upon a slanting or
an irregular surface.
The pins may be on the stand and the ball or roller form the bearing surface-of
the instrument.
Dated this 1st day of August 1890.
ALLISON BROS.,
Agents for the Applicant.
An Improved Metronome.
I, ARTHUR GOUGH PINFOLD, of Northgate, Cleckheaton, in the County of
York, Watchmaker, Silversmith and Optician, 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 "ollowing statement:--
The object of the present invention is to provide a simple, cheap, efficient,
noiseless, and readily portable metronome or instrument capable of being adjusted
so as to oscillate any required number of times per minute, and which may be
employed for indicating or marking different times in music, or for rating and
adjusting horological instruments, such as watches, chronometers, etc. The improved
metronome has no springs, weights, escapement, wheels or other parts which can
get out of order, and it is always ready for use, as it can be placed and made to
operate upon a shelf or other convenient projection, or even upon the finger, or a
special stand may be provided to support same, the whole being capable of being
enclosed in a suitable case and carried about the person.
In the accompanying drawings
Fig. 1 is a sile elevation and Fig. 2 a front elevation of a metronome constructed
according to my invention.
Figs. 3 and 4 are similar views showing the metronome mounted upon a suitable
stand.
Fig. 5 is a side elevation and Fig 6 a front elevation of a slightly modified form
of metronome constructed according to my invention.
My invention consists essentially in a curved or bent frame A, which may be of
C-form as shown, the bottom of which is weighted as shown at B, while on the
under side of the top of such frame a suitably shaped support or bearing surface C
is provided, upon which the instrument oscillates when in operation. From the
upper side of the top of the frame A a straight bar D extends upwards and
constitutes a slide upon which the sliding weight to regulate the number of beats
is mounted, such bar being marked with divisions and terms used in music, showing
the position to which the weight E must be shifted to produce the number of beats
required. the same as in metronomes of known construction.
The instrument thus constructed is complete in itself, and by suspending same by
the bearing surface C on the under side of the top of the curved or bent frame A
upon a shelf or other convenient part, or even upon the finger, and imparting an
oscillating movement thereto, such movement will continue for a considerable period,
the rate of oscillation depending upon the position to which the sliding weight E
has been shifted along the slide D projecting up from the top of the frame A.
The slide D may be mounted on the top of the frame A so that it can slide
through same, or be folded in relation thereto when not in use, thus reducing the

page_text: size of the instrument and enabling it to be more conveniently carried about the
person, either in a case or not, without damaging it.
The bearing surface C may be of curved form or a knife edge, but in order to
reduce the friction thereon to a minimum and thereby increase the duration of its
operation for a single impulse imparted to the instrument, it is preferable to make
such bearing surface in the form of a pin or pins F, preferably two as shown.
A suitable stand G may be provided for the instrument, having preferably at
top a part or support to receive the bearing surface C of the frame A of such
instrument, a suitable form of stand consisting of a set of legs H to or upon the top
of one of which the support I to receive the bearing surface C of the instrument is
secured or mounted, as shown in Figs. 3 and 4. The legs H constituting the stand
are preferably binged or pivotted together so that they can be folded or turned Hat
all in the same line, and thus enable the stand and the instrument (which is also
flat) to be placed in a small case, so as to be more convenient for transport, such
case being capable of being placed in the pocket.
The support on the stand and which is to receive the bearing surface C of the
instrument may be of any suitable material (metal, india rubber, etc.) and of any
suitable form to suit the shape or nature of such bearing surface. When the latter
is convex the support may be in the form of a corresponding concave recess; or the
bearing surface may be in the form of a concave recess and the support be convex.
For a knife edge bearing surface the part to receive the knife edge may have a
slight cut or recess.
When the bearing surface consists of two pins F, the support I on the stand G
is (as shown in Figs. 3 and 4) preferably in the form of a pulley, either grooved or
not, and which may be stationary or mounted upon a pivot as shown; or such
support I may be in the form of a ball. This construction will enable the instrument
to always hang true, even when the stand is placed upon a slanting or an irregular
surface.
The pins F might be arranged on the stand G and the ball or roller I form the
bearing surface of the instrument.
al.
In the metronome shown in Figs. 1, 2, 3 and 4 the pins upon which the
instrument oscillates are arranged so that the movements or oscillations will be in a
plane at right angles to the part on which such pins rest, while in the metronome
shown in Figs. 5 and 6 such pins are arranged so that the oscillations will be in
plane parallel to the part on which they rest, the weight B and also the bar or
slide D in each case being secured to frame A. so as to suit the direction of motion.
The form of the frame A is also somewhat modified in the instruments shown in
Figs. 1, 2, 3 and 4, and in Figs. 5 and 6 respectively, the frame A in the first case
being of curved form, while in the latter case the part of such frame on which the
pins are situated and also the part carrying the weight Bare bent at right angles
to the piece connecting such parts.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. The improved metronome consisting of a curved or bent frame weighted at its
lower end and provided with a bearing surface on the under side of the top thereof
by which it can be suspended, and of a bar or slide projecting up from the top of
such frame and carrying a weight the position of which can be adjusted in order to
regulate the duration of the beats or oscillations of the instrument, substantially as
specified.
2. The improved metronome consisting of a curved or bent. frame weighted at its
lower end and provided with a bearing surface on the under side of the top thereof,
and of a bar or slide projecting up from the top of such frame and carrying an
adjustable weight, such bar or slide being capable of either sliding through the top
of the frame or of folding down in relation thereto, substantially as specified.
3. The improved stand for a metronome constructed as described in Claim 1,

page_text: consisting of a set of legs carrying a ball, roller or other suitable support to receive
the bearing surface of such metronome, such legs being preferably hinged on
connected together so as to enable the stand to be folded up when not in use
substantially as specified.
ليم
11001
ALLISON BROS.,
Agents for the Applicant.

page_text: Date of Application, 9th Aug., 1890
Complete Specification Left, 5th May, 1891-Accepted, 20th June, 1891
PROVISIONAL SPECIFICATION.
An Improved Metronome.
I, ARTHUR GOUGH PINFOLD, of Northgate, Cleckheaton, in the County of
York, Watchmaker, Silversmith and Optician, do hereby declare the nature of this
invention to be as follows:-
:-
The object of the present invention is to provide a simple, cheap, efficient,
noiseless, and readily portable metronome or instrument capable of being adjusted
so as to oscillate any required number of times per minute, and which may be
employed for indicating or marking different times in music, or for rating and
adjusting horological instruments, such as watches, chronometers, etc.
The improved
metronome has no springs, weights, escapement, wheels or other parts which can
get out of order, and it is always ready for use, as it can be placed and made to
operate upon a shelf or other convenient projection, or even upon the finger, or a
special stand may be provided to support same, the whole being capable of being
enclosed in a suitable case and carried about the person.
My invention consists essentially in a curved or bent frame, which may be of
C form, the bottom of which is weighted, while on the under side of the top of such
frame a suitably shaped support or bearing surface is provided, upon which the
instrument oscillates when in operation. From the upper side of the top of the
frame a straight bar extends upwards and constitutes a slide upon which the sliding
weight to regulate the number of beats is mounted, such bar being marked with
divisions and terms used in music, showing the position to which the weight must.
be shifted to produce the number of beats required, the same as in metronomes of
known construction.
The instrument thus constructed is complete in itself, and by suspending same by
the bearing surface on the under side of the top of the C-frame, upon a shelf or
other convenient part, or even upon the finger, and imparting an oscillating
movement thereto, such movement will continue for a considerable period, the rate
of oscillation depending upon the position to which the sliding weight has been
shifted along the slide projecting up from the top of the frame.
The slide may be mounted on the top of the C-frame so that it can slide through
same, or be folded in relation thereto when not in use, thus reducing the size of the
instrument and enabling it to be more conveniently carried about the person without
damaging it, either in a case or not.
The bearing surface may be of curved form or a knife edge, but in order to
reduce the friction thereon to a minimum and thereby increase the duration of its
operation for a single impulse imparted to the instrument, it is preferable to make
such bearing surface in the form of a pin or pins, preferably two.
A suitable stand may be provided for the instrument, having preferably at top
a part or support to receive the bearing surface of the C or other frame of such
instrument, a suitable form of stand consisting of a set of legs to or upon the top of
one of which the support to receive the bearing surface of the instrument is secured
or mounted. The legs constituting the stand are preferably hinged or pivotted
together so that they can be folded or turned flat all in the same line, and thus
enable the stand and the instrument (which is also Hat) to be placed in a small case,
so as to be more convenient for transport, such case being capable of being placed
in the pocket.
The support on the stand and which is to receive the bearing surface of the
instrument may be of any suitable material (metal, india rubber, etc.) and of any
suitable form to suit the shape or nature of such bearing surface When the latter
is convex the support may be in the form of a corresponding concave recess; or the

page_text: bearing surface may be in the form of a concave recess and the support be convex.
For a knife edge bearing surface the part to receive the knife edge may have a
slight cut or recess.
When the bearing surface consists of two pins, the support on the stand is
preferably in the form of a pulley preferably grooved and either stationary or
mounted upon a pivot, or in the form of a ball, as this construction will enable the
instrument to always hang true, even when the stand is placed upon a slanting or
an irregular surface.
The pins may be on the stand and the ball or roller form the bearing surface of
the instrument.
Dated this 1et dex of Anenst 1800
ALLISON BROS.,
Agents for the Applicant.
OUBLE DEI DI MUINTUATION,
An Improved Metronome.
I, ARTHUR GOUGH PINFOLD, of Northgate, Cleckheaton, in the County of
York, Watchmaker, Silversmith and Optician, 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 "ollowing statement:-
The object of the present invention is to provide a simple, cheap, efficient,
noiseless, and readily portable metronome or instrument capable of being adjusted
so as to oscillate any required number of times per minute, and which may be
employed for indicating or marking different times in music, or for rating and
adjusting horological instruments, such as watches, chronometers, etc.
The improved
metronome has no springs, weights, escapement, wheels or other parts which can
get out of order, and it is always ready for use, as it can be placed and made to
operate upon a shelf or other convenient projection, or even upon the finger, or a
special stand may be provided to support same, the whole being capable of being
enclosed in a suitable case and carried about the person.
In the accompanying drawings
Fig. 1 is a side elevation and Fig. 2 a front elevation of a metronome constructed
according to my invention.
Figs. 3 and 4 are similar views showing the metronome mounted upon a suitable
stand.
Fig. 5 is a side elevation and Fig 6 a front elevation of a slightly modified form
of metronome constructed according to my invention.
My invention consists essentially in a curved or bent frame A, which may be of
C-form as shown, the bottom of which is weighted as shown at B, while on the
under side of the top of such frame a suitably shaped support or bearing surface C
is provided, upon which the instrument oscillates when in operation. From the
upper side of the top of the frame A. a straight bar D extends upwards and
constitutes a slide upon which the sliding weight E to regulate the number of beats
is mounted, such bar being marked with divisions and terms used in music, showing
the position to which the weight E must be shifted to produce the number of beats
required, the same as in metronomes of known construction.
The instrument thus constructed is complete in itself, and by suspending same by
the bearing surface C on the under side of the top of the curved or bent frame A
upon a shelf or other convenient part, or even upon the finger, and imparting an
oscillating movement thereto, such movement will continue for a considerable period,
the rate of oscillation depending upon the position to which the sliding weight E
has been shifted along the slide D projecting up from the top of the frame A.
The slide D may be mounted on the top of the frame A. so that it can slide
through same, or be folded in relation thereto when not in use, thus reducing the

page_text: size of the instrument and enabling it to be more conveniently carried about the
person, either in a case or not, without damaging it.
The bearing surface C may be of curved form or a knife edge, but in order to
reduce the friction thereon to a minimum and thereby increase the duration of its
operation for a single impulse imparted to the instrument, it is preferable to make
such bearing surface in the form of a pin or pins F, preferably two as shown.
A suitable stand G may be provided for the instrument, having preferably at
top a part or support to receive the bearing surface C of the frame A of such
instrument, a suitable form of stand consisting of a set of legs H to or upon the top
of one of which the support I to receive the bearing surface C of the instrument is
secured or mounted, as shown in Figs. 3 and 4. The legs H constituting the stand
are preferably hinged or pivotted together so that they can be folded or turned flat
all in the same line, and thus enable the stand and the instrument (which is also
flat) to be placed in a small case, so as to be more convenient for transport, such
case being capable of being placed in the pocket.
The support on the stand and which is to receive the bearing surface C of the
instrument may be of any suitable material (metal, india rubber, etc.) and of any
suitable form to suit the shape or nature of such bearing surface. When the latter
is convex the support may be in the form of a corresponding concave recess; or the
bearing surface may be in the form of a concave recess and the support be convex.
For a knife edge bearing surface the part to receive the knife edge may have a
slight cut or recess.
When the bearing surface consists of two pins F, the support on the stand G
is (as shown in Figs. 3 and 4) preferably in the form of a pulley, either grooved or
not, and which may be stationary or mounted upon a pivot as shown; or such
support I may be in the form of a ball. This construction will enable the instrument
to always hang true, even when the stand is placed upon a slanting or an irregular
surface.
The pins might be arranged on the stand and the ball or roller form the
bearing surface of the instrument.
In the metronome shown in Figs. 1, 2, 3 and 4 the pins F upon which the
instrument oscillates are arranged so that the movements or oscillations will be in a
plane at right angles to the part on which such pins rest, while in the metronome
shown in Figs. 5 and 6 such pins Fare arranged so that the oscillations will be in
a plane parallel to the part on which they rest, the weight B and also the bar or
slide D in each case being secured to fraine A. so as to suit the direction of motion.
The form of the frame A. is also somewhat modified in the instruments shown in
Figs. 1, 2, 3 and 4, and in Figs. 5 and 6 respectively, the frame A in the first case
being of curved form, while in the latter case the part of such frame on which the
pins are situated and also the part carrying the weight B are bent at right angles
to the piece connecting such parts.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is
1. The improved metronome consisting of a curved or bent frame weighted at its
lower end and provided with a bearing surface on the under side of the top thereof
by which it can be suspended, and of a bar or slide projecting up from the top of
such frame and carrying a weight the position of which can be adjusted in order to
regulate the duration of the beats or oscillations of the instrument, substantially as
specified.
2. The improved metronome consisting of a curved or bent frame weighted at its
lower end and provided with a bearing surface on the under side of the top thereof,
and of a bar or slide projecting up from the top of such frame and carrying an
adjustable weight, such bar or slide being capable of either sliding through the top
of the frame or of folding down in relation thereto, substantially as specified.
3. The improved stand for a metronome constructed as described in Claim 1,

page_text: consisting of a set of legs carrying a ball, roller or other suitable support to receive
the bearing surface of such metronome, such legs being preferably hinged or
connected together so as to enable the stand to be folded up when not in use,
substantially as specified.
Dated this 30th day of April 1891
ALLISON BROS.,
Agents for the Applicant.