IMPROVEMENTS IN AND RELATING TO MEANS FOR ATTACHING LIDS TO SCHOOL OR OTHER DESKS
Year: 1884

page_text: I, JOHN GLENDENNING, of Norwich, in the County of Norfolk, Salesman, do
hereby declare the nature of said Invention for " IMPROVEMENTS IN AND
RELATING TO MEANS FOR ATTACHING LIDS TO SCHOOL OR OTHER DESKS" to
be as follows:-
My Invention relates to means for attaching the lids of school or other desks,
and has for its object to dispense with the ordinary hinges generally employed
which project above the surface of the desk.
The said Invention consists essentially in mounting a desk lid on pivots or
trunnions and comprises the novel construction hereinafter described.
In carrying my Invention into practice I attach to the edges of the lid at
the upper end thereof plates of metal. The said plates extend along the said
edges for some distance and are let into the wood of the lid in such a manner that
their faces are flush with the corresponding faces of the lid. One end of each of
the said plates has a projection which extends at right angles therefrom along a
portion of the upper edge of the lid.
Each of these plates carries on its outer side a pivot or trunnion, which has a
bearing in a plate attached to one edge of the opening in which the lid fits.
These pivots or trunnions are placed at some distance from the upper edge of the
desk lid so that when the said lid is turned on its pivots or trunnions the said top
edge will move away from the edge of the opening in which the lid fits.
In order to form a close joint between the top edge of the lid and the edge of
the opening the said edges are suitably bevelled so as to correspond with each
other.
On the plates in which the bearings of the pivots or trunnions are formed
are lugs. These lugs are arranged in such a position that when the lid is
raised it will be prevented from going back too far and thereby making a mark on
the face of the lid at the place where it would impinge against the edge of the
opening and also from damaging the said edge. The said lugs also serve when the
desk is closed to support the top end of the lid and thereby remove any unnecessary
strain from the pivots or trunnions.
It is obvious that I may vary the details of the construction hereinbefore
described without departing from the nature of my Invention, for instance I may
place the lugs on the lid of the desk so as to impinge against the plates, in which
the bearings are formed, when the desk is opened.
Dated this 7th day of January 1884.
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: I JOHN GLENDENNING of Norwich in the County of Norfolk, Salesman do
"IMPROVEMENTS IN AND
hereby declare the nature of said Invention for
RELATING TO MEANS FOR ATTACHING LIDS TO SCHOOL OR OTHER DESKS" and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
My Invention relates to improved means for attaching lids to school or other
desks.
According to my said Invention I dispense with the hinges ordinarily employed,
which, by reason of their construction, are weak and wear out rapidly, and parts
of which usually project above the surface of the desk, and I attach the lid to the
desk by means of pivots or trunnions carried by plates and fitting into suitable
bearings, the said plates being secured to the lid and the bearings to the desk, or
vice versa; and I provide suitable lugs or projections for the lid to rest against
when open so as to prevent the said lid from being turned too far back and thus
injuring the edge of the desk or the surface of the said lid.
In the accompanying Drawing I have shown a desk with which my Invention is
incorporated or embodied.
Figure 1 is a plan of the said desk with the lid closed.
Figure 2 is a section on the line x, x, Figure 1 with the lid open.
Figure 3 is an end elevation, and
Figure 4 a side elevation of one of the bearings or bearing plates.
Figure 5 is a side elevation, and
Figure 6 an end elevation of one of the plates which carry the trunnions.
Figure 7 is a plan, drawn to an enlarged scale, showing a slight modification of
my Invention.
Figures 3, 4, 5 and 6 are drawn full size.
a is the desk, and b is the lid thereof. c, c are metal plates secured to the edges
of the lid at the inner end thereof. These plates extend along the said edges for
some distance and are let into the wood of the lid in such a manner that they are
flush with the surface of the said edges. But, if desired, the said plates may be
fitted into recesses or cavities formed in the edges of the lid for their reception,
so that they are not visible when the lid is closed.
Each of the plates c carries a pivot or trunnion d adapted to fit into one of the
bearing plates e which are fixed to the edges of the desk at opposite sides of the
opening thereof.
The said pivots or trunnions are placed a short distance from the inner edge bi
of the lid so that when the said lid is turned on the said pivots or trunnions to
open it its inner edge will move away from the adjacent edge a¹ of the desk.
In order to form a close joint between the inner edge 6 of the lid and the said
edge a¹ of the desk, when the lid is closed, the said edges are bevelled as shown.
A lug or projection f is formed on each of the plates e. These lugs are so
situated that, when the lid b is open, it will rest against the said lugs which will
prevent it from turning too far back and coming against the edge a¹ of the desk
and thus damaging the said edge or the surface of the lid.
I may somewhat modify the details of construction hereinbefore described without
departing from the nature of my Invention; for instance, instead of forming the
lugs or projections f on the plates e I may form lugs or projections on the plates c
so that they will come in contact with the plates e when the lid is opened; or I
may make the plates e with projections or extensions f¹ at right angles thereto as

page_text: shown in Figure 7, so that the plates c will rest against the said projections or
extensions when the lid is open. And if desired I may secure the plates carrying
the trunnions to the desk and the bearing plates to the lid.
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
The improved means for attaching lids to school or other desks, consisting of the
plates having the pivots or trunnions, the bearing plates, and the lugs or projections
or their equivalent, substantially as set forth.
HASELTINE, LAKE & Co.,
For the Applicant.