Improvements in Hinges.
Year: 1889

page_text: Date of Application, 2nd Dec., 1889
Complete Specification Left, 1st Sept., 1990-Accepted, 29th Nov., 1890
TROVICIUNAL DIMUIFICATION.
Improvements in Hinges.
I, MCGUIRE SLANE of Bell Ranch New Mexico, United States of America, Ranch
Owner, do hereby declare the nature of this invention to be as follows :-
This invention relates to double-jointed hinges that is hinges in which the two
leaves or sections of the hinge are provided with two parallel joint pins arranged at
suitable distances apart and connected by one or more yokes or link pieces, and the
invention consists in a hinge of this description of novel construction, substantially as
hereinafter described whereby the hinge may readily be used either as an invisible
or concealed one from the outside or as a flush hinge and whereby it does not require
to be set deep in the wood thus giving it a neat appearance and making it more
practicable for many articles or pieces of furniture. The hinge is mainly designed to
be used on pianos and fine furniture, including cabinet work of different kinds, but it
may also be used on boxes and other articles.
In carrying out my invention I make a recess in the wood of the fixed part to
which the hinge is applied and a recess in the lid or movable part. These
recesses which are made to receive the hinge are not through ones; in the direc-
tion of the thickness of either of said parts, but stop short of the outside surfaces
of them so as to leave a covering piece or portion of the wood over the longitudinal
marginal portion of the hinge on which the joint pins are arranged thereby making
the hinge invisible from the outside. By increasing the distance apart of these
joint pins or two centres of the hinge then the covering pieces or portions will be
of an increased thickness. Said marginal portions of the hinge, that is of the arms
of the leaves of the hinge as also the meeting marginal portions of the recessed
parts of the wood are, respectively, formed with concave and convex surfaces arranged
to roll or fit one within the other to give a good support to the hinged parts at the
joint and to make the hinged joint a close one throughout the length of the
hinged parts.
When it is not required to have the hinge an invisible or concealed one from
the outside, then the recesses in the fixed and movable parts to which the hinge is
applied are through ones in the direction of the thickness of said parts the hinge
sections being made of a suitable width to accord therewith. In this case, the
hinge will be merely a flush one, that is will have its longitudinal marginal portion
in the same planes as the inner and outer face surfaces of said fixed and movable
parts.
To make the hinge a combined or convertible invisible and flush one, each leaf
section of the hinge is made or provided with what may be termed a solid top, that
is with an inner longitudinal marginal piece or cover having lugs on its inner sur-
face which lugs are arranged to be intermediate with the arms of the leaves and to
receive between them and said arms the links or yokes that unite the two jointing
pins of the binge. Said links or yokes which are fitted to turn loosely on the jointing
pins are made with double end lugs which receive in between them the lugs of the
joint covering piece or cover. The jointing pins which have fixed axial centres and
do not work in slots, pass through holes made in each of the lugs and arms of the
hinge. With this arrangement the joint portion of the hinge is fully covered on the
outside by the longitudinal covering strips or pieces so that, when the hinge is a flush
one, no joints in transverse arrangement to the pins will be seen whilst at the same
time, the hinge can readily be used as an invisible or concealed one free from all
exposure of its joints. The link or yokes are of double angular or equivalent form on
their sides opposite to the lugs and the longitudinal walls of the recesses in the
leaves between the arms are correspondingly bevelled to receive the angular surfaces of

page_text: the links or yokes within them when the hinge is fully closed. The hinge, con-
structed as described has a flat leaf bearing within the recesses in which it fits and
said recesses do not require to be made of any extra or increased depth to accomodate
the hinge or to provide for its working.
.
Dated this 30th day of November 1800
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Hinges.
I, MCGUIRE SLANE of Bell Ranch New Mexico, United States of America, Ranch
Owner 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 double-jointed hinges, that is, hinges in which the two
leaves or sections of the hinge are provided with two parallel joint pins arranged at
suitable distances apart and connected by one or more yokes or link pieces and the
invention consists in a hinge of this description of novel construction substantially as
hereinafter described and pointed out in the claims whereby the hinge may readily be
used either as an invisible or concealed one from the outside or as a flush hinge, and
whereby it does not require to be set deep in the wood thus giving it a neat appearance
and making it more practicable for many articles or pieces of furniture. The hinge
is mainly designed to be used on pianos and fine furniture including cabinet work of
different kinds, but it may also be used on boxes and other articles.
Reference is to be had to the accompanying drawings forming a part of this
Specification, on which similar letters of reference indicate corresponding parts in all
the figures.
Fig. 1 represents a front view of the hinge applied to a lid and adjacent part,
when freely open.
Fig. 2 a side view of the hinge closed with the parts to which it is applied in
section, the section being taken on the line - in Fig. 1
Fig. 3 a further side view of the hinge partly open with the parts to which it is
applied in section and Fig. 4 a still further like side view when the hinge is fully
open. These several views show the hinge applied so as to conceal it or make it
invisible in its working and when it is closed.
Figs. 5 and 6 are views in perspective of the two leaf portions of the hinge detached.
Fig. 7 a perspective view of a top or inner marginal longitudinal piece or cover
which is used as applied to each of said leaf portions; and
Fig. 8 is a perspective view of one of the yoke or link pieces of the hinge..
Fig. 9 is a side view of the hinge closed with the parts to which it is applied in
section and showing it merely as a flush and not as an invisible hinge, and
Fig. 10 is a similar view to Fig. 2 but showing the hinge as concealed or made
invisible from the outside by an increased thickness of wood as a covering and also
representing by dotted lines the lid part in its fully open position as in Fig. 4.
Figs. 11 and 12 are perspective views of the hinges; Figure 11 showing it as fully
open and Fig. 12 as partly open.
A indicates what may he termed the fixed part to which the hinge is applied and
B the lid or movable part thereof. In Figs. 1, 2, 3, 4 and 10, the recesses a, a which
are made in these parts to receive the hinge are not represented as through ones; in
the direction of the thickness of either of said parts but as stopping short of the outside
surfaces of them so as to leave a covering piece or portion of the wood over the
longitudinal marginal portion of the hinge on which the joint pins c, c are arranged,
thereby making the hinge invisible from the outside. By increasing the distance apart
of these joint pins or two centres of the hinge then these covering pieces or
portions, of the wood will be of an increased thickness as shown in Fig. 10 when
compared with Figs. 2 and 4. Said marginal portions of the hinge, that is of the

page_text: arms, d, d of the leaves C, D, of the hinge, as also the meeting marginal portions of
the parts A B are, respectively formed with concave and convex surfaces e, f, arranged
to roll or fit one within the other to give a good support to the hinged parts at the
joint and to make the hinge joint a close one throughout the length of the hinged
parts.
When it is not required to have the hinge an invisible or concealed one from the
outside, then the recesses a, a in the parts A B made for the reception of the binge
are through ones in the direction of the thickness of said parts A B, the hinge sections
being made of a suitable width to accord therewith as shown in Fig. 9. In this
case, the hinge will be merely a flush one, that is will have its longitudinal marginal
portion in the same planes as the inner and outer face surfaces of the parts A and B.
To make the hinge a combined or convertible invisible and flush one, each leaf
section C or D of the hinge is made or provided with what may be termed a solid top,
that is with an inner longitudinal marginal piece or cover E (see Fig. 7) having lugs g
on its inner surface which lugs are arranged to be intermediate with the arms d, d of
the leaves and to receive between them and said arms the links or yokes G that unite
the two jointing pins c, c of the hinge. Said links or yokes which are fitted to turn
loosely on the jointing pins c, c, are made with double end lugs h, h (see Fig. 8) which
receive in between them the lugs 9 of the joint covering piece E. The jointing
pins cc which have fixed axial centres and do not work in slots, pass through holes
made in each of the lugs g and h and arms d of the hinge. With this arrangement
the joint portion of the hinge is fully covered on the outside by the longitudinal
covering strips or pieces E so that, when the hinge is a flush one (as at Fig. 9) no joints
in transverse arrangement to the pins c c will be seen, whilst at the same time the
binge can readily be used as an invisible or concealed one free from all exposure of its
joints as hereinbefore described.
The links or yokes G are of double angular or equivalent form on their sides
opposite to the lugs h, has shown at k (see Figs. 4 and 8) and the longitudinal walls
of the recesses in the leaves C, D between the arms & are correspondingly bevelled as
at 1, 1 to receive the angular surfaces of the links or yokes within then when the hinge
is fully closed. The hinge, constructed as described has a flat leaf bearing within
the recesses a, a in which it fits and said recesses do not require to be made of any
extra or increased depth to accomodate the hinge or to provide for its working.
In some cases, such as where both parts A and B are movable small coil springs m
may be fitted on the joint pins c, as shown at Figs. 11 and 12, to aid the action of the
hinge. One end of the wire forming each spring m may be secured to the yoke G
whilst the other end may be secured to the leaves C or D as the case may be as
shown.
The yoke G may have a square cut recess between the lugs has shown at Fig. 8 or
the recess may be curved on the one side as shown at Figs. 11 and 12 and indicated
in dotted lines at Figs. 2, 3 and 9.
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―
1. In a double-jointed hinge of the character herein described, the covering strips
or pieces E with their attached lugs g applied to each leaf or section of the hinge,
substantially as and for the purposes herein set forth.
2. In a double-jointed hinge, the combination with the leaves C, D of the hinge
having attached arms d, of the covering strips or pieces E with their attached lugs g,
the links or yokes G having double end lugs h and the parallel joint pins c, c having
fixed axial centres, the whole being constructed and arranged for operation together,
substantially as and for the purposes specified.
Dated this 28th day of August 1890
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.