Improvements in Adjustable Seats and Desks.
Year: 1899

page_text: Date of Application, 31st Aug., 1898-Accepted, 7th Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Adjustable Seats and Desks.
We, VICTOR BERFORD, Carpenter, GEORGE DUNN, Live Stock Merchant, and
THOMAS WILSON, Medical Practitioner, all of Tara, in the County of Bruce and
Province of Ontario, Canada, 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.-
This invention relates to desks and seats therefore, primarily intended for the
use of schools, but which are equally applicable for other uses. The object of
the invention is to provide a desk which may be quickly and easily adjusted, in
both a vertical and a horizontal plane, and one which may also be entirely
removed from the floor when necessary. A further object is to provide a seat
which may be adjusted vertically to meet the requirements of the occupant,
and which may also be adjusted horizontally to bring it at any desired angle to
the desk, or which may be swung around beneath the desk, so as to be out of the
way. A further object is to provide a simple and efficient means for securing
the desk in its adjusted position, and finally, the object is to provide an adjust-
able desk and seat which shall be compact, convenient, and consists of few parts,
the whole being simple in construction, easy to operate and economical to
manufacture.
To these ends, the invention consists in an improved adjustable desk and
seat, constructed and combined substantially as hereinafter illustrated, and
described, and finally defined in the appended claims.
Referring to the diawings, in which similar letters of refeience 1efer to sımılar
parts in all the views.
Figure 118 a vertical, central section of the improved adjustable desk and
seat, the seat and its supporting bracket being shown in elevation
Figure 2 is an enlarged view, partly in section, showing the means for locking
the desk in its adjusted position.
Figure 3 is a top view thereof
Figure 4 is a rear elevation, showing the seat folded and swung around beneath
the desk.
Figure 5 is an under view of the base of the desk support, showing the detach-
able securing means
In the drawings, A represents a desk of any ordinary or preferred construction,
supported by a rod A', rigidly fixed to the under side thereof This rod A' is
adapted to be vertically and horizontally adjusted within a hollow supporting
standard B, the upper portion of which is provided, upon its exterior, with an
ordinary screw thread b About midway of the standard B is an annular
shoulder 6', above which the standard is turned true, so as to afford a bearing for
the seat support F1, as will be hereinafter described The bottom of the standard
B is formed into a broad circular base B', upon the inner rim of which is pin-
vided a series of inwardly projecting lugs, which are adapted to engage with
the flanges b, formed upon the periphery of a base plate C, which is adapted to
be rigidly secured to the floor The flanges 63 are intercepted at suitable points

page_text: by the recesses 6', which when brought into alignment with the lugs permit
of the engagement and the disengagement of the standard with respect to the
base plate, thus permitting the ready placing and removal of the desk and seat,
which is a very important and desuable feature, whore large numbers of desks
are in use, and where it is sometimes necessary to remove the same, as in the
case of laige halls or school 100ms, in which the floor space is occasionally
needed for other purposes.
Upon the threaded end of the standard B 18 applied an interiorly threaded
binding nut D, the upper portion of the interioi of which is chambered for
the reception of the clampings dogs E, whose inner faces are curved to conform
with the cuivation of the supporting iod A¹, and toothed or seriated upon said
inner faces to permit the firm clamping of the said 10d A¹
By
The clamping dogs E are recessed back of their clamping faces to receive the
ond of the supporting standard B, in case it should project too far up within
the binding nut D The upper and outer faces e of the clamping dogs are
inwardly beveled or inclined, to correspond with a similar bevel or inclined
sui face upon the upper face of the recessed portion of the binding nut D
means of this construction, it will be seen that when the binding nut 18 tuined
down, the inclined or beveled surfaces will co-act with the corresponding
beveled surfaces e of the clamping dogs, to force them into engagement with
the supporting 1od A¹ A leveise movement will, of course, release said clamp-
ing dogs from then engagement with the supporting 1od A¹, and permit the
desk to be raised or lowered vertically, and also to be revolved around in either
dection in a horizontal plane
About the bearing F, of the supporting standard B 18 rotatably sleeved the seat
support F1, so as to iotate freely thereon A lug projects from one side of said
support, which 18 slotted to receive the downwardly extending serrated arm q
of the seat blacket G, said aim being adapted to mesh with the serrater face fi
on the slotted lug f. The slot or recess in the lug f is of greater width at the
bottom than at the top, which provides space in which to swing the arm g from
engagement with the serrated face f¹ of the slotted lug f when it is desired to
vertically adjust the seat The bracket G 18 cui ved downwardly, and then out-
wardly and upwardly from the arm g, and to the outer and upper end of the
bracket is hinged the seat portion 9³ At a suitable point upon the bracket G
18 fixed the upwardly extending support H of the bracket-1est H', which is suit-
ably constructed and located to best subserve its intended purpose
In view of the explicit description above given, it is believed the operation
of the vanous features of the invention will be readily understood without
further explanation
While we have herein shown a preferied form of carrying our invention into
effect, yet we do not desne to limit ourselves to such preferred details of con-
struction, but claim the right to use any and all modifications thereof which will
selve to carry into effects the objects to be attained by this invention in so far
as such modifications and changes may fall within the spirit and scope of our said
invention
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is..
1 A combined adjustable desk and seat, comprising a tubular supporting
standard a desk provided with a supporting rod adapted to be adjustably
sleeved within said tubular standard, means for locking said rod in its adjusted
position; means for detachably securing said tubular standard in position, a seat
Pupport rotatably secured upon said tubular standard, and a seat supporting
bracket adjustably secured in said seat support, substantially as described
2 A combined adjustable desk and seat, comprising a tubular standard pro-
vided with screw-threads upon its upper surface; a desk provided with a support

page_text: ang rod adapted to be adjustably sleeved within said tubular standard; a binding
nut adapted to engage the threaded end of said tubulai standard, and provided
with an interior recess having inclined upper surfaces; clamping dogs arranged
within said recess and provided with inclined outer surfaces, adapted to cooperate
with the inclined surfaces of the binding nut to engage with said iod and lock the
same in its adjusted position, substantially as described
3 A combined adjustable desk and seat, comprising a tubular standard; a
desk provided with a supporting rod adapted to be adjustably sleeved within said
tubular standard; means for locking said rod in its adjusted position; a shoulder
formed on said tubular standard, a bearing arranged above said shoulder,
seat support loosely sleeved about said bearing, a seat bracket adjustably mounted
in said seat support, and means for locking said seat bracket in its adjusted
position, substantially as described
a
4 A combined adjustable desk and seat, comprising a tubular supporting
standard, a desk provided with a supporting rod adapted to be adjustably
sleeved within said tubular standard, means for locking said rod in its adjusted
position, a seat support loosely sleeved upon said tubular standard, a seat
bracket adjustably mounted in said seat support; means for locking said seat
bracket in its adjusted position, and means for detachably securing the tubular
standard in position, substantially as described.
5. A combined adjustable desk and seat, comprising a tubular standard; a
desk provided with a supporting 1od adapted to be adjustably sleeved within
said tubular standard, means for locking said 1od in its adjusted position, a
shoulder formed on said tubular standard; a bearing arranged above said
shoulder a seat support loosely sleeved about said beating; a recessed lug
integral with said seat support, and having upwardly inclined seirations upon
its inner face, a seat bracket having at its innei end a depending arm,
and pro-
vided with downwardly inclined seriations adapted to engage with the serrations
of said lug, and a seat portion pivoted to the outer end of said seat bracket, sub-
stantially as described
6. A combined adjustable desk and seat, compusing a tubular supporting
standard: a desk provided with a supporting rod, adapted to be adjusfably
sleeved within said tubular standard; means for locking said rod in its adjusted
position, a seat-support loosely sleeved upon said tubular standard; a seat
bracket adjustably mounted in said seat-support, means for locking said seat-
bracket in its adjusted position; a series of inwardly projecting lugs arranged
upon the interior of the base of said tubular standard; a base-plate provided with
an annular flange intersected by radial slots, which are adapted to receive and
release said lug upon the rotation of said standard, substantially as described
Dated this 30th day of August 1899
WM P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicants