An Improved Hinge.
Year: 1896

page_text: Date of Application, 11th Feb., 1896
Complete Specification Left, 22nd Oct., 1896-Accepted, 28th Nov., 1896
An Improved Hinge.
I, WILLIAM GILBERT SMITH of 1, Broad Street, Deal, in the County of
Kent, Restaurant Keeper, do hereby declare the nature of this invention to be as
follows:-
My invention relates to an improved hinge particularly designed for the falls
and tops of pianoforte cases, desk flaps, card tables, and other articles of furniture,
and the invention has for its object to provide a flush hinge which presents no
knuckle joint to view when the parts connected by the hinge are placed flush
with one another, and ensures a flush joint between the two parts so hinged
together.
According to my invention the hinge plates are box-shaped and mortised into
the joint edges of the two parts to be hinged together and they are connected by
an intermediate link which is pivoted at one end to the inner end of the one box
or case at a point remote from the joint and is connected at the other end by hinge
knuckles to the other box or plate. The liuk passes through the first mentioned
box or case and is pivoted to its inner end as above mentioned, the other end of the
plate or link projecting from the box or case and this projecting portion being
bent or curved in the direction of the opening movement of the hinge at an angle
to its own plane whilst the plate or link is free to swing and is spring pressed in
the same direction within the box or case. This outwardly and laterally projecting
end of the link is hinge jointed as above mentioned to the other box like plate,
In the
the joint being situated within and at one side of its cavity or recess..
closing motion of the hinge a cam incline on the one part acting on an abutment
on the other part of the hinge overcomes the spring.
Dated this 11th day of February 1896.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
An Improved Hinge.
1, WILLIAM GILBERT SMITH of 1, Broad Street, Deal, in the County of
Kent, Restaurant Keeper, 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:--
My invention relates to an improved hinge particularly designed for the falls
and tops of pianoforte cases, desk flaps, card tables, show cases, doors of cupboards,
and other articles of furniture, and the invention has for its object to provide a
flush binge which presents no knuckle joint to view when the flap or door is closed
and ensures a flush joint between the flap or door and the part to which it
is hinged.
The invention is illustrated in the accompanying drawing forming part of this
specification wherein Figure 1 represents a sectional view of the hinge in the closed

page_text: position, Figure 2 a similar view, and Figure 3 a face view of the two members of
the hinge in the open position.
According to my invention the hinge comprises two box-shaped cases A B which
are respectively received in mortices in the door D and the part E to which it is
hinged, and a connecting link C which is formed by a plate hinged at one end to
the inner end of the box or case B by knuckles c and at the other end to the other
box or plate A by knuckles c'. The box B is of considerable depth and the link C
passes through it and projects from the open end of the box or case B. This pro-
jecting portion C of the link C is cranked or bent up at about a right angle to
the plane of the plate C. The plate or link C is free to swing upon its hinge c to
an extent determined by the width of the box B and the plate C is pressed by a
coiled or flat spring F within the box or case in the direction towards which the
bent up end is directed. This outwardly and laterally projecting end Cof
the link is hinge jointed at cl to the box A so that the bent end C¹ is received
within the cavity or recess of the said box, as shewn, when the hinge is closed.
In this box A is fixed an inclined cam a which when the hinge is closed acts
against an abutment formed by a roller b carried by a pin mounted within the
case B, the effect of which is that when the door or flap is closed the spring Fis
overcome and the link C is forced into the position shewn in Figure 1 so that the
two parts D and E are flush with each other and make a close flush joint. When
the door or flap is opened the cam quits the abutment and the spring is free to
swing the link C to the position shewn in Figure 2 so that the door D may be
swung clear of, and lie flat upon, the part E.
If desired the joint between the parts D and E may be tongued, the plates by
which the boxes A B are screwed to the said parts being either flat or tongued to
correspond.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The herein described flush hinge constructed substantially as specified.
2. A flush hinge constructed of two box-like parts connected by a cranked or
bent connecting link hinged at its opposite ends to the inner ends of said box-like
portions as described.
3. A flush binge constructed of two box-like parts connected by a cranked or
bent connecting link hinged at its opposite ends to the inner ends of said box-like
portions as described, in combination with a spring acting on the connecting link
and with a cam-like incline on the one part acting on an abutment on the other
part so as to draw the two parts flush when the hinge is closed substantially as
specified.
Dated this 22nd day of October 1896.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.