Year: 1897

page_text: Date of Application, 9th Dec., 1897
Complete Specification Left, 1st Oct., 1898-Accepted, 5th Nov., 1898
JOSEPH COPESTAKE, of Stockwell Gate, Mansfield, Joiner, and GEORGE ALCOCK
FISK, of Nottingham Road, Mansfield, Ironfounder, do hereby declare the nature of.
this invention to be as follows:-
This invention has reference to improvements in and relating to desks such as are
used in schools, and in which the top of the desks can be fixed in various positions,
and locked in such positions. Now the object of this invention is the provision of
ineans which allow of the position of the desk top being readily changed and by
which the act of changing the position will also rigidly lock the desk top in its
changed position without the use of keys, screws, collars or other means separate
from the desk itself.
'According to this invention the top of the desk standard is fitted with a fixed axle
and on opposite sides of the same there are teeth, catches or projections. The desk
top is fitted with a bracket which has a limited sliding movement on the axle in the
standard and is provided with teeth catches or projections which correspond with the
similar parts on the standard and are so arranged that the bracket can be moved on.
the axle in the standard to disengage the two sets of teeth or the like, then turned
to change the position, and afterwards be again moved on the axle so that a different
set of teeth or the like are engaged and the desk be rigidly locked in its changed.
position. The desk bracket may be in parts for facilitating construction, and it may
be fitted to one or both sides of the standard or between jaws on the same.
1005
I
JOSEPH COPESTAKE, of Stockwell Gate, Mansfield, Joiner, and GEORGE ALCOCK
FISK, of Nottingham Road, Mansfield, Ironfounder, 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 has reference to improvements in and relating to school and similar
desks which are so fitted that the position of the desk top can be changed and locked
in such positions; the object of the present invention being improvements in the
means for locking the desk top without the use of bolts, keys, or other separate
fastenings.
According to this invention the top of the desk standard carries a fixed axle or pin,
and above and below such axle there are sets of teeth catches or projections. To the

page_text: underside of the desk top there is fixed a bracket grooved to fit the sides of the top
of the desk standard and slotted to fit the fixed axle. This bracket is also provided
with teeth, catches, or projections which correspond with the teeth, catches, or
projections on the desk standard and are so arranged that the desk top can be moved
to, and be looked in any of the positions corresponding, with the teeth, catches, or 5
projections on the desk standard.
In the accompanying drawings which illustrate this invention
Fig. 1 is an elevation of the top of the desk standard and bracket as placed for
a flat desk.
Fig. 2 is a section.
Fig. 3 is an elevation of the top of a desk standard and bracket as placed for an
inclined desk and
Fig. 4 is an elevation of Fig. 3.
In the particular arrangement shown in the drawings the desk top is fastened to
a bracket a which is made with projection pieces b and b¹. These pieces are
arranged to fit on opposite sides of a plate c which is formed on the top of the desk
standard d. The plate c carries a fixed axle e and the pieces b and b¹ are slotted at f
to allow of the desk top being raised when it is required to change the position of
the same.
On the upper edge of the plate o there are teeth or their equivalent g, and
at the opposite side of the axle e there are other teeth h which which are on one side of
the plate c. Corresponding with the position of the teeth gand there are teeth k on
the desk top bracket and these teeth are so arranged that the teeth kengage with the
teeth g and in whatever position the desk top is placed within the scope of the
latter.
When the parts are in the position shown in Fig. 1 and it is required to tilt
the desk top this latter is raised until the teeth are clear of the teeth g and h.
The desk top can then be turned round the axle e and lowered until the teeth k
engage with a different tooth of the sets g and h.
"
In modifications of the arrangement shown the plate c may have single teeth at
the top and bottom, and there may be sets of teeth on the pieces b and b¹; or the
plate o may be double with a single piece or b working in the slot formed. The
bracket a when made with two pieces band b¹ may be divided to facilitate con-
struction.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A fitting for a desk top which allows of the position of the top being changed
and which holds the desk top in position by teeth or their equivalent on opposite
sides of an axle about which the top is turned, constructed and arranged substantially
As herein described with reference to the accompanying drawings.
Dated this 20th day of Containho- 1000
1
W. H. POTTER,
Nottingham.