MENTS IN PORTABLE, COLLAPSIBLE AND FOLDING MUSIC STANDS, AND READING DESKS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, THOMAS WILLIAM BENNETT, of Market Place, St Neot's in the county of
Huntingdon, Engineer do hereby declare the nature of my invention for IMPROVE-
MENTS IN PORTABLE, COLLAPSIBLE AND FOLDING MUSIC STANDS, AND READING
DESKS, to be as follows:-
My improvements consist in constructing music stands or reading desks in such
a manner that they may be shut up, folded, or collapsed into a small space for the
purpose of portability without disconnecting any of the different parts one from
another.
The stand or desk may be described as consisting of three parts, viz:—the top,
table, or desk, Figs. 1, 2, 3, 4, 5, & 6; the pillar or stem as shown at A Fig 8; and
the legs or base, Figs, 7, 8, 9, & 10.
I construct the top, table, or desk of slats of sheet metal or wood, jointed in
such a manner as to cause the said table or desk to come alongside the stem or
pillar, and the point of support to come at, or near the extremity when folded and
I accomplish this in two ways shown in Figs. 1, 2, 3, 4, & 5, 6 respectively. No. 1
top, table, or desk, Figs. 1, 2, 3, & 4, is constructed as follows;-the top slat B is .
a plain one, the bottom slat C carries a ledge D for holding the book or music,
which ledge D has a joint E the whole length to enable it to be turned up out of
the way when shut up. Each of the three vertical slats F F F has a joint at
the centre G¹G" G¹ and the one in the centre slat G is rivetted on to an
ordinary male and female joint H the female part of which is attached to the
upper part of the stem A forming an universal joint, so that the desk or table can
be moved in any direction either out of the vertical or horizontal.
•
To shut the said top or table up it is necessary to bend the two outside vertical
slats G¹ G each towards the centre and the middle one G¹¹ to the right as shown
in Fig. 3, the top slat B then comes down until it touches the bottom one Gas
shown in Fig. 4, the music ledge D is then turned down upon the other part of
table or desk by the longitudinal joint E before described, it is then moved on the
centre joint Guntil it comes alongside the stem or pillar A.
No. 2 top, table, or desk is constructed on the same principle as the one described,
the chief difference being that the horizontal slats are jointed and the vertical ones
are not jointed, the method of folding is shown in Figs, 5 & 6, the ledge for carrying
music or book is constructed the same in both cases.

page_text: The pillar or stem I construct of two or more slides or tubes which telescope one
into the other, any slide or tube is fixed in any position by mean of a taper
thread and nut I, formed on the next outer tube, the aforesaid thread being slit
down in several places JJ in the direction of the length of the tube so that the
act of screwing on the taper nut I contracts the diameter of the outer tube at that
point and holds the tube within it securely.
The feet or base Figs. 7, 8, 9, 10, are constructed as follows;-three or more
legs K are jointed to a tripod casting L so that they are free to move upon the
said joint M towards or away from the tube A, this casting is bored out to fit
the lower end of tube or stem and is free to be turned round on the stem or tube
within certain limits, the two screws N¹ N" acting as stops, the two collars 0¹ 0"
keep the aforesaid casting from sliding up or down the tube, the legs are formed
with a square corner either at top or bottom of joint which butt up against a tube
or disc, the said tube or disc having pieces cut out around its circumference for the
purpose of allowing the square corner to pass through when turned round opposite
the legs. I accomplish this object in several different ways in Figs 7 & 8; the top
right hand corner P butts up against the inner tube A about the circumference of
which tube A are three or more slots Q (1 slot to each leg) of sufficient width and
length to allow the shoulder or abutment P to pass through and so allow the legs
to turn. It will be seen that all that is necessary to shut up the legs is to turn the
casting round upon the tube until the legs come opposite the slots they can then
be shut up close to the stem or tube A. In Fig. 9 the legs K are formed the same
as previously described; but instead of butting against the tube they butt against
a disc R in which pieces are cut out as shown at S to allow the shoulder on the
legs to pass through when being folded up as before described. In Fig. 10 the legs
are formed with the shoulder P on the bottom left hand corner and butt against
the disc R on the under side of casting L to which the legs are jointed, pieces aro
cut out at S to allow the legs to fold up as before described; another method
although not shown in drawing is to place the disc R as shown in Fig. 10 above
the casting L instead of below as shown with the necessary slots and abutments as
before described. To ensure lightness with strength I construct the legs of a Teo,
Angle, or Tubular section. When it is necessary to put two, three, or more tables
or desks on one stand I fix each one (by means of the male and female joint, and
the joint in centre of table as described for single top) to a short arm standing out
horizontaly and radially from the pillar or stem, these arms are jointed to a casting
which turns on the pillar or stem the same as that described for the legs or base
and the arms shut up in same manner.
Fig. 1. is a front elevation of No. 1. top, table or desk when opened out
for use.
Fig. 2. is a side elevation of No. 1. top, table, or desk when put parallel to the
pillar or stem previously to being shut up.
Fig. 3. shows No. 1. top, table, or desk when partly shut up.
Fig. 4. shows No. 1. top, table, or desk completely shut up, with the exception
of the music ledge which is not shown folded down on the other part.
Fig. 5. shows No. 2 top, table, or desk when open for use.
Fig. 6. shows the same partly shut up.
Figs. 7, 9, & 10 are vertical sections taken through centre of legs or base
showing the various means used for moving the abutment in order to shut up
the legs.
Fig. 8 is an elevation of Fig. 7.

page_text: I, THOMAS WILLIAM BENNETT, of Market Place, Saint Neot's, in the County. of
Huntingdon, Engineer, do hereby declare the nature of my invention for IMPROVE-
MENTS IN PORTABLE, COLLAPSIBLE, AND FOLDING MUSIC STANDS AND READING
DESKS and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following stateinent:-
My invention consists of the methods hereinafter particularly described of
constructing Music Stands and Reading Dosks in such a manner that they can be
shut up, folded, or collapsed into a small space for the purpose of portability,
without taking to pieces, or disconnecting any one part from any other part.
For the purpose of making my invention inore easily understood I shall describe
the Music Stand, or Reading Desk as consisting of three parts viz:-the top, table,
or desk upon which the piece of music or book rests; the pillar or stem, and the
legs or base.
The top, table, or desk, I construct of slats of sheet metal; or wood formed and
jointed in such a manner that the act of folding or shutting up causes the point of
support to move away from the centre, and when shut or folded up to come at or
near the top oxtremity, so that little or nothing of the said top, table, or desk will
project above the pillar or stem when shut or folded up, this object I accomplish
by two different modes of construction.
The pillar or stem I construct of a tubular cross section with one or more
telescopic slides which can be fixed in any desired position by one of the following
Ilcans. 1st The top of the outer tube or slide is tapered inwards, the taper part is
then screwed and provided with a taper nut to suit, the taper part of the outer
tube is slit in the direction of the length of the tube in four or more places, so
that by screwing this taper nut on to the taper thread, the diameter of the outer
tube is contracted at that point and the inner tube is held firmly in position. The
bottom of the inner tube is tapered outwards to fit the original diameter of the
outer tube, this forms a guide for the lower part of inner tube, and also a stop, so
that the inner tube cannot be drawn right out. 2nd At the lower extremity of the
inner tube is formed a collar which fits the outer tube having a projecting pin fixed
to it slightly out of the centre, on this eccentric pin a disc, which also fits the outer
tube, works loosely, the hole in it being the same distance from the centre as the
pin on lower extremity of inner tube, the action is as follows, upon turning the.
inner tube either to the right, or to the left, the eccentric part of the collar at
bottom of inner tube, and the eccentric part of disc, get more or less opposite to
one another and so fix the inner tube in any desired position.
The legs or base I construct as follows:-three or more legs are jointed to a
casting in such a manner that they are free to move upon the said joints towards
or away from the pillar or stem, this casting fits the lower extremity of tubular
pillar or stem and is free to be turned round on same within certain limits; the
legs are formed with square corners or shoulders either at the top or bottom of
joint which "butt" against the tube or a disc fixed thereto, the said tube or diso
bas pieces, or slots, cut out around its circumference for the purpose of allowing the
square corners, or shoulders on the legs to pass through when the legs are being
shut up towards the pillar or stem, when the casting which carries the legs is
turned in the opposite direction on the pillar or stem the square corners or shoulders
which are upon the legs come opposite and "butt" against those parts of the tube
or disc which are between the slots above mentioned, thus causing the legs to be
firm and rigid.

page_text: In order that this my said invention may be the more clearly understood I have
hereunto annexed one sheet of drawing illustrative of the same, and have marked
it with Figs. and letters of reference, the same letters referring to the same part in
the various views or figures.
Fig. 1 is a front elevation of one top, table, or desk, which I shall refer to as
No. 1, when opened out for use.
Fig. 2 is a side elevation of the same when opened out, but put parallel to the
pillar or stem previously to being shut or folded up. Fig. 3 shows No. 1 top, table,
or desk when partly shut or folded up. Fig. 4 shows No 1 top, table, or desk
when shut or folded up with the exception of the music ledge which is not shown
folded down over other part of desk, and Fig. 5 is a plan of No. 1. top, table, or
desk, when completely shut or folded up.
No. 1. top, table, or desk, is composed of 5 slats of sheet metal or wood, the three
vertical ones A' A" A which have each a joint in the centre at B¹ B¹ B¹¹¹ are
jointed on to the horizontal slats C¹ C" by the joints D¹ D" D¹¹¹ D D
D
The vertical slats A¹ & A¹ are in the front of the horizontal slats C¹ & C¹¹ and
the vertical slats A" is at the back of the horizontal slats C¹ & C. The horizontal
slat C¹ has a portion of its width E turned up at right angles for the purpose of
strengthening the slat and also to form an abutment for the square corners F¹ F" to
"butt" against when opened out to the desired extent. The bottom part of the
horizontal slat C is turned up in the same manner as described for the horizontal
slat C' but to a greater extent, which in addition to strengthening the slat and
forming an abutment as before described, forms the ledge upon which the piece of
music or book rests, this is indicated at G; along the whole length of this music
ledge G a joint H is constructed to allow the said ledge G to be folded over the
other part of top, table, or desk when shut up as shown in Fig 5. Portions of the
said joint H instead of being cut away as in the ordinary method of constructing a
joint of this description aro bent out to a greater radius as shown at I and form
stops so that the ledge G cannot be opened out further than at right angles to the
other part of desk; at suitable positions upon the ledge G are shown the usual
clips J. J. for bolding down the leaves of music or book; these are jointed as shown
and can be turned back in order to take up less space when the stand is shut or
folded up as shown in Figs 3, 4, and 5. The joint B in vertical slat A" is riveted
on to the male part K of an ordinary male and female joint and is free to tuin
upon it for the purpose of bringing the top, table, or desk parallel to the stem when
shut or folded up as shown in Figs 5 and 24. The female part of this joint L is
fixed to the upper telescopic slide of the pillar or stom hereinafter described, this
male and female joint is for the purpose of bringing the top, table, or desk parallel
to the pillar or stem when shutting up as shown in Figs 2, 5, and 24 the angle of
top, table, or desk when in use is shown in Figs. 21 und 22 and is held in this
position by the joint K. L being tightened up by the wing nut M.
To shut up No. 1 top, table, or desk it must be placed parallel to the pillar or
stem by means of the male and female joint K. Las shown in Fig. 2, it is then
necessary to push the two outside vertical slats A' and A¹ each towards the centre,
and the middlo vertical slat A" to the right, as shown in Figs 3 and 4, this causes
the horizontal slats C and C to gradually approach each other, until they finally
touch as shown in Fig. 4, the music ledge G must then be turned down upon the
other part of the top, table, or desk and the clips J. J. turned parallel to music
ledge Ġ as shown in Figs 3, 4, and 5, it is then necessary to turn it on the joint Bl
a quarter of a revolution, or parallel to the pillar or stem as shown in Figs 5
and 24.
Fig. 6 is a front elevation of No. 2 top, table, or desk when opened out for use,
and Fig 7 is a front elevation of the same when partly shut up and shows the
method of shutting up.
No. 2 top, table, or desk is composed of six slats of sheet metal or wood, the
three horizontal slats N N N which have each a joint in the centre at 0'0" 1
are jointed on to the vertical slats P' and Pill by the joints Q¹ Q¹¹ Q¹¹¹ Q¹¹¹ Q

page_text: the horizontal slats N' and Nu aro at the front of the vertical slats P¹ and Pill and
the horizontal slat Nu is at the back of the vertical slats P¹ and P, the vertical
slat P is jointed to the horizontal slats N' and N1 by the joints O¹ and O¹¹ but.
it is not connected to the centre horizontal slat N"; the object of this slat P" is
1st to cause the movement of the horizontal slats N¹ and N¹ to be identical..
2nd to keep the same slats N¹ and N11 in their proper position when in use, and
3rd to make a better surface for the music or book to lean against, the vertical
slats P¹ and P¹¹ are turned back at the outside edges for the purpose of strengthening
them as before described for No. 1. top, table, or desk The description of the
music ledge and joint etc. as given, for No. 1. top, table, or desk applies to No. 2. top,
table or desk also, with the exception that in No. 2. top, table, or desk it is made
in two pieces, each half the length of No. 1 top, table, or desk. The joint O" in
vertical slat P is riveted to the male part K of an ordinary male and female joint
as before described for No. 1. top, table, or desk, but tho rivet of this joint 0"
projects, and when in position for use as shown in Fig. 6. comes through the hole R
in centre vertical slat P" and this projecting portion of the rivet or pin in joint Ou
in conjunction with the various stops S made in any convenient manner, holds the
top, table, or desk firm and rigid in the desired shape when in use; to keep the
top, table, or desk from turning on the centre joint Ou should the music or book be
placed away from the centre, two stops T are attached to the male part K of the
male and female joint, and engage with the centre horizontal slat N on each side
of the centre joint O" and as the top, table, or desk cannot assume any other shape
than that of a rectangle as long as the hole R in centre vortical slat P is upon the
prolongation of the rivet in joint O", it follows that any tendency for the top,
table, or desk to get out of level is arrested by either one or the other of the stops T.
To shut up No. 2 top, table, or desk it is necessary to disengage the contro
vertical slat P from off the prolongation of the rivet in centre joint 0" and pull it
downwards as shown in Fig. 7, this action must be continued until the two vertical
slats P and P touch each other, the music ledges G and music clips J must then
be turned down as described for No. 1. top, table, or desk, it must then be brought
parallel to the pillar or stem by means of the male and female joint K. L
hereinbefore described.
It is not absolutely necessary to have either of the tops, tables, or desks affixed
to the pillar or stein by the male and female joint K. L as hereinbefore described,
and I therefore in some cases dispense with this joint and use one of a different
construction shown in Figs. 18 and 19; it consists of a double rivet U, the two pins
of which form with each other an angle equivalent to that which the top, table, or
desk makes with the pillar or stem when in use, the rivet is made fast to the back
half of the vertical slat A" when No. 1. top, table, or desk is used, and to tho
back half of the horizontal slat N" when No. 2. top, table, or desk is used, the
front half of slat A" or N" as the case may be, being free to move on the front
pin of the double rivet U. The back pin of the double rivet U is free to move
in the casting V which is fixed on the top of the pillar or stem. The action
is as follows: when the top, table, or desk is put in position for use as shown
in section, broken off, in Fig. 18, it makes, by means of the double rivet U being
in the position shown in Fig. 18, an acute angle with the pillar or stem, but
when shut up the double rivet U will by the motion given to it by the back
half of the slat A" or N" as the case may be, have turned very nearly a quarter
of a revolution in the casting V and will assume the position shown in plan at
Fig. 19. The top, table, or desk will therefore, when opened out for uso be at
an angle to the pillar or stem but when shut up will be parallel to it. The front
pin of the double rivet U can be screwed into the other portion of double rivet,.
or it (the double rivet) may be made of two ordinary rivets joined back to back at
the proper angle, or in any other convenient manner.
"
The pillar or stem I construct of two or more lengths of metallic tube (or I may
have the top length made of wood, or other suitable material) " telescopod
into the other as shown drawn out ready for use in Figs 20, 21, 22 and 23, …,
one

page_text: Fig. 14 shows a detail of one of my methods for fixing any of the telescopic
slides in any desired position, this method I shall call No. 1, and it consists of
tapering tho outer tube inwards at the top as shown at W, this taper part is sawn
or slit down in several places as shown at X in the direction of the length of the
tubej the taper part W is screwed taper, and a taper "milled" nut Y is made to
fit it. By screwing on the taper nut Y the diameter of the tube is contracted at
that point and the inner tube is thus held securely in position; by unscrewing the
taper-nut Y the reverse of the action described above is produced and the inner
tube can be moved up or down at will. This same object may be attained by a
taper collar, without any thread, in the place of the nut Y, the taper part W of
tube is then left plain also but the slits X remain the same as before. The bottom
part of inner tube- is expanded at Z to fit the inside diameter of outer tube as
shown, this forms a guide for the bottom of inside tube, and also forms a stop so
that the inner tube cannot be drawn right out.
Figs. 15, 16, and 17 show my 2nd method of fixing the telescopic slides in any
desired position, Fig. 15 heing a vertical section through the two tubes; Fig. 16
being a section taken through the outer tube below the inner tube looking
upwards; Fig. 17 being the same section but showing the inner tube locked. At
the lower extremity of the inner tube (a) I fix a disc of metal (6) having an
eccentric pin (c), and on this eccentric pin (c) a disc or washer (d) works loosely,
having the hole through which the eccentric pin (c) passes, as much out of the
centre as the eccentric pin (c). A little further up the inner tube (a) I fix a
collar (e) which acts as a guido to keep the inner tube (a) upright, and also in
conjunction with the screwed cap (f) on outer tube, as a stop to prevent the inner
tube from being drawn too far out. When in position for sliding up and down
the two discs ((b) and (d)) have their peripherys concentric as shown in Fig. 16
but when the inner tubo (a) is turned round in either direction for a small portion
of a revolution the peripherys of the two discs (b & d) overhang each other at two
different points as shown at Fig. 17, it follows that the more the inner tube is
turned round within the outer tubo the tighter will be the grip of the eccentric
discs (band) and when turned back to its original position as shown at Figs 15.
and 16, the inner tube can be drawn up and down easily. The disc (d) can be
placed in any convenient position other than at the extremity, provided an
eccentric pin or crank pin is made to work it. It can be made of a smaller
diameter than shown provided the periphery just touches the outer tube when not
locked; or it may be a parallel strip, the length being equal to the inside diameter
of the tube, the hole being out of the centre in the direction of the length of the
strip to the saine extent as 'before.
Figs 8, 9, 10, 11, 12 and 13 show the various means I employ for folding up the
legs and also for keeping them rigid when opened out for. use, these are all on the
same principle but constructed differently, these different constructions I, shall
call No. 1, No. 2, No. 3 and No. 4 bases. Fig. 8 is an elevation of No. 1. base;
Fig. 9 is a horizontal section of the same base taken through the line 1. 1. in
Fig. 8; and Fig. 10 is a vertical section of the same base taken through the
line 2. 2. in Fig. 9.
No. 1. base is constructed as follows, three or more legs (g) are jointed to a
casting or forging (h) by the joints (i) so that they are free to move towards or
away from the pillar or stem (); this casting (h) to which the legs are jointed is
bored out, or otherwiso made to fit the bottom portion of pillar (5) and it is free
to turn round upon it within certain limits, the two screws (kk) working in
slots (L.) in the pillar or stem (2) acting as stops to limit the extent to which it
can be moved, and the two collars (m³ ml) keep the aforesaid casting (h) from
sliding up or down upon the pillar or stem (j). The legs (g) have each a square
corner or shoulder (n) which "butts up against that portion of tubular pillar or
stem which is within the casting (h). At equal intervals around that part of the
circumference of the pillar or stem (1) which is within the casting (h) are cat
three or more holes-or slots-(0)-(1 to each leg) sufficiently large to allow the
"

page_text: corners or shoulders (n) to pass through. When the casting (h) is turned in one
direction until its progress is arrested by the stop screws (kk) the legs (9) come
opposite to the slots (o) in the pillar or stem (1), and as the corners or shoulders (n)
will easily pass through them the legs can be brought close up to the pillar or
stem () as shown in Fig. 24; when the casting (h) is turned in the opposite
direction until the stop screws (kk) again arrest its progress, the legs (g) can only
be turned up towards the pillar or stem () until the corners or shoulders (n)
"butt" up against that part of tubular pillar or stein (2) which is between the
slots (o), thus when in this position the legs are firm and secure. The sections
Figs. 9 and 10 are taken when the legs are in this position. A stay (p) is introduced
within the pillar or stem (5) to keep the tube from being forced in by the pressure
exerted by the corners or shoulders (n) on the legs (g).
Fig. 12 is a vertical section of No. 2. base taken on the line 3. 3. of Fig. 13; and
Fig. 13 is a horizontal section of No. 2 base taken on the line 4. 4. in Fig. 12-In
No. 2 base (g) are the legs with the corners or shoulders (r) at the top as before
described and (8) is the tripod casting to which the legs aro jointed, and which
turns upon the pillar or stem (1) with the stops, screws, and collars all as before
described for No. 1. base, but instead of having slots in the tube for the corners or
shoulders (7) to pass through I have a disc (t) with pieces cut out around its
circumference at (u) for the corners or shoulders (7) to pass through when being
folded, and (v) are the abutments for the corners or shoulders (7) to "butt
against when fixed up for use. The action is the same as described for No. 1 basc.
Fig. 11 shows No. 3 base. This differs from the two already described, in as
much as the corners or abutments (w) are placed at the bottom of the joint and
the disc (x) underneath instead of at top, with pieces cut out as before for the
shoulders or corners (w) to pass through when being folded but in this case the
corners or shoulders (w) do not "butt" against the edge of the disc (2) but on
the top side of it.
No. 4 base I have not shown on the drawing as it differs from No. 3 only in its
having the disc (2) placed above the joints, the corners or shoulders on the legs
being dispensed with as part of the legs themselves "butt" against the under side
of the disc when in position for use, the disc being of a larger diameter than
before. The operation of folding and unfolding the legs is the saine as describe l
for No. 1 base in each case-In those cases described above where I use a disc
either at top or bottom of legs to form an abutment for the corners or shoulders on
legs to "butt" against when the legs are open, and which disc has pieces cut out
for the corners or shoulders on the legs to pass through when the legs are being
folded, I may make the disc moveable around the pillar or stem and make the
tripod casting, to which the legs are jointed, fixed to the pillar or stem so that the
disc alone will have to be moved instead of all the legs together with the castings
to which they are jointed, and in like manner in those cases where the legs "butt"
against the tubular pillar or stem I can make the casting, to which they are
jointed, fixed, and the lower part of pillar or stem against which the legs "butt,"
moveable-To ensure lightness with strength I construct the legs either of a tee,
angular, or tubular section.
"3
Fig. 22 is a side elevation, and Fig. 23 a front elevation of a stand with two
tops, tables, or desks-When it is necessary to construct a stand with two or more
tops, tables, or desks I employ any one of the means described for the different
bases, with this exception, in the place of the legs I use short arms (y) Fig. 22,
which fold up in the same manner as herein before described for the legs; at the
extremity of each of these short arms (3) I attach either No. 1. or No. 2 top, table,
or desk either by the male and female joint, or by the double rivot joint both
hereinbefore described for single top, table, or desk.
Fig. 20 is a front elevation, and Fig. 21 is a side elevation of a stand fitted with
one No. 1 top, table, or desk.
Fig. 24 is an elevation of the entire stand as shown extended in Figs 20 and 21
shut on fabled
25
NL 1 Ban and N.
1

page_text: 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 claim is
:
First. Constructing Music Stands or Reading Desks with a top, table, or desk
composed of slats of sheet metal or wood jointed in the manner shown in Figs 1,
2, 3, and 4, whereby the act of shutting or folding the said top, table, or desk
causes the point of support which is in the centre when open, to be near the
extremity when shut or folded.
Second. Constructing Music Stands or Reading Desks with a top, table, or desk
composed of slats of sheet metal or wood jointed in the manner shown in Figs 6
and 7 whereby the act of shutting or folding the said top, table, or desk causes the
point of support, which is in the centre when open, to be at the extremity when
shut or folded.
Third. In combination with either of the two tops, tables, or desks herein before
described, the method of constructing the longitudinal joint with its stops along
the whole length of the music ledge.
Fourth. In combination with either of the two tops, tables, or desks hereinbefore
described, the male and female joint attachment to the pillar or stom, which is for
the purpose of bringing the said top, table, or desk parallel to the pillar or stem
after it is shut or folded up.
Fifth. In music stands constructed as herein before described the double rivet
joint attachment between the top, table, or desk and the pillar or stem as shown in
Figs 18 and 19. by means of which the act of opening and shutting the said top,
table, or desk causes it to be at an angle with the pillar or stem when opened for
use, and parallel to it when shut or folded up.
Sixth. The slit taper thread and nut as shown in Fig. 14, for the purpose of
holding the different slides of the telescopic pillar or stem in any desired position.
Seventh. In the telescopic slides of Music Stands or Reading Desks constructed
in the manner herein before described, the arrangement of a double eccentric fixed
upon the inner slide in such a manner that by turning one eccentric in an opposite
direction to the other they grip the outer tube and so hold the inner slide in any
desired position.
32
out or
Eighth. In the telescopic slides of the pillar or stem of Music Stands or Rending
Desks, constructed in the manner hereinbefore described the "belling
expansion of the lower extremity of the inner tube, and the contraction of the
upper extremity of the outer tube for the purpose of forming a stop so that the
inner tube cannot be drawn out too far, as shown in Fig. 14.
Ninth. The construction of Music Stands, or Reading Desks with the legs or
base formed as hereinbefore described, wherein each leg has a square corner or
shoulder formed either at the top or bottom of joint, and wherein there are
moveable abutments for the corners or shoulders on the legs to "butt" against, and
having sufficient room for the corners or shoulders on the legs to pass through
between the moveable abutinents.
Tenth. In Music Stands or Reading Desks which have more than one top, table,
or desk, the method of attaching the tops, tables, or desks to short arms which
have each a square corner or shoulder formed either at the top or bottom of the
joint at the end which is nearest to the pillar or stem, each arm having a moveable
abutment for the corner or shoulder to "butt" against and having sufficient room
between the moveable abutments for the corners or shoulders on the short arms to
pass through.
Dated this third day of November 1884.