Improvements in Butt Hinges and other Hinges.
Year: 1894

page_text: Date of Application, 17th Dec., 1894
Complete Specification Left, 20th Aug., 1895-Accepted, 21st Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in Butt Hinges and other Hinges.
1, GEOFFREY ARTHUR MARTINEAU, of the Firm of F. E. Martineau and
Company, of Newtown Row, Birmingham, in the County of Warwick,
Manufacturers, do hereby declare the nature of this invention to be as follows:-
My invention has reference principally to sheet metal hinges of the kind
commonly called loose pin butt and loose hinges, the joint pin of the hinge
consisting of two parts, namely, a short pin taking into a portion of one of the end
knuckles of the joint and being permanently secured therein and a longer pin
passing through the other end knuckle and the middle knuckle and taking into a
portion of the first mentioned end kuuckle. The longer pin of the joint is loose and
can be removed from the knuckles for separating the two flaps of the hinge.
The outer ends of the two parts of the joint pin are usually provided with
ornamental heads.
My invention consists of the method hereinafter described of permanently
connecting the short joint pins to the end knuckles of hinges of the kind described,
whereby the external cylindrical surface of the knuckle is not injured or interfered
with and is free from the unsightliness common to butt and other hinges in which
the fixed pin is secured to the knuckle in the ordinary ways.
According to my invention, I make near the inner end of the fixed joint pin of
the butt hinge a slightly raised annular projection or collar and I make in one of
the knuckle pieces of the sheet metal flap blank, and in that face which forms the
inner face in the finished knuckle, a straight groove or depression having a cross
sectional figure corresponding with that of the annular projection or collar on the
fixed joint pin.
In connecting the fixed joint pin to the knuckle the said pin is laid across the
knuckle piece of the flap blank and its annular projection or collar dropped into the
groove or depression in the said knuckle piece. By means of the ordinary raising
or bending process the knuckle piece is bent upon the joint pin into a tubular figure
so as to form the end knuckle and the joint pin is at the same time permanently
secured to the said knuckle, that is, the joint pin is capable of end motion in the
knuckle by the engagement of its collar with the depression in the interior of the
said knuckle, but the knuckle can turn upon the pin. In this way the short fixed
joint pin of the butt hinge is connected to the knuckle without injury to or
interference with the external surface of the knuckle.
Instead of making the collar of the fixed pin in one piece with the said pin, the
collar may be made separately and secured to the pin. In this case, a groove is
made in the pin and the separate collar closed in the said groove.
My invention is applicable to all kinds of loose pin or loose hinges made from
sheet metal, such for example as hinges of the kind called Cape Parliament hinges.
in which the fixed joint pins are without heads.
Dated this Seventeenth day of December 1894.

page_text: Improvements in Butt Hinges 'and other Hinges.
I, GEOFFREY ARTHUR MARTINEAU of the Firm of F. E. Martineau and
Company, of Newtown Row, Birmingham in the County of Warwick, Manufacturers,
do hereby declare the nature of my 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 has reference principally to sheet metal hinges of the kind
commonly called loose pin butt hinges and loose hinges, the joint pin of the hinge
consisting of two parts, namely a short pin taking into a portion of one of the end
knuckles of the joint and being permanently secured therein and a longer più passing
through the other end knuckle and the middle knuckle and taking into a portion of
the first mentioned 'end knuckle. The longer pin of the joint is loose and can be
removed from the knuckles for separating the two flaps of the hinge: The outer
ends of the two parts of the joint pin are sometimes provided with ornamental
heads.
My invention consists of the method hereinafter described of permanently
connecting the short joint pins to the end knuckles of hinges of the kind described,
whereby the external cylindrical surface of the knuckle is not injured or interfered
with and is free from the unsightliness common to butt and other hinges in which
the fixed pin is secured to the knuckle in the ordinary ways.
According to my invention, I make near the inter end of the fixed joint pin' of
the butt hinge a slightly raised annular projection or collar and I'make in one of
the knuckle pieces of the sheet metal flap blank, and in that face which forms the
inner face in the finished knuckle, a straight groove or depression having a cross
sectional figure corresponding with that of the annular projection or collar on the
fixed joint pin.
In connecting the fixed joint pin to the knuckle, the said pin is laid across the
knuckle piece of the flap blank and its annular projection or collar dropped into the
groove or depression in the said knuckle piece. By means of the ordinary 'raising
or bending process the knuckle piece is bent upon the joint pin into a tubular figure
so as to form the end knuckle, and the joint pin is at the same time permanently secured
to the said knuckle; that is, the joint pin is incapable of end motion in the khuckle
by 'the engagement of its collar with the depression in the interior of the said
knuckle, but the knuckle can turn upon the pin. In this way, the stort fixed joint
pin of the butt hinge is connected to the knuckle without injury to or interference
with the external surface of the knuckle. Instead of making the collar of the fixed
pin in one piece with the said pin the collar may be made separately and secured to
the pin. In this case a groove is made in the pin and the separate collar'closed in
the said groove.
My invention is applicable to all kinds of loose pin hinges or loose hinges made
from sheet metal in which the fixed joint pins are beaded or are without heads,
such for example as hinges of the kind called Cape Parliament hinges.
Figure 1 of the accompanying drawing represents in front elevation and
Figure 2 in side elevation (partly in section) a loose pin butt hinge, the short joint
pin of which is permanently connected to its knuckle according to my invention;
Figure 3 represents the two flaps of the hinge disconnected and the longer joint
pin also disconnected, and also exhibits the grooved knuckle piece of one of the
Haps in the flat and the collared short pin placed on the knuckle piece prior to the
coiling operation by which the knuckle is made and the joint pin fixed in the said
knuckle.
a is the flap carrying the end knuckles c, d and 6 is the flap carrying the middle

page_text: knuckle e; fis the long loose 'joitit pin which takes into the end and middle
knuckles c, e and partly into the end knuckle d; gis the short joint pin fixed
permanently in the knuckle d according to my invention. The said short pidg:hu's
at its end an annular projection or collar made solid to the said pin, and in the
knuckle piece of the flap blank (see Figure 3) a straight groove or depression i
is made on that 'face of the blank which 'forms the inner face in the finished
knuckle. The said groove i has a V or other cross sectional figure proper for
taking upon the collar on the end of the joint pin g. In connecting the fixed
ping to the knuckle d the said pin is laid across the fat knuckle piece d³ of the
flap blank and its annular projection or collar dropped into the groove or
depression in the said knuckle piece as illustrated in Figure 3. By a raising or
bending process conducted in the ordinary way, the knuckle piece is closed
or bent upon the joint ping into a tubular figure so as to form the end knuckle d
and the joint ping is at the same time permanently secured in the knuckle by the
engagement of the groove i with the collar h as illustrated in Figures 1 and 2.
The joint ping thus connected to the knuckle is incapable of end motion in the
said knuckle but the knuckle d can turn upon the said pin. The short joint pin g
is by my invention connected to the knuckle without injury to or interfering with
the external surface of the knuckle. It will be understood that the knuckle
piece may be bent upon the joint pin g at the same time that the other knuckle c
is bent; or by a separate bending operation.
Figure 4 represents in elevation and Figure 5 in cross section a loose or lift off
hinge, the joint and terminal pins of which are connected to the knuckles
according to my invention.
In this hinge the flaps k, are provided with a middle joint pin m which is
permanently connected to the long knuckle of the flap k and works in the long
knuckle of the other flap . The flap k is thus capable of being lifted from
the other flap l. Each knuckle has an end or terminal pin n permanently fixed in
it. The three pins m, n, n are fixed to their respective knuckles in the manner
hereinbefore described with respect to the pin y; that is, each end pin n has upon
it a collar n³ and the middle joint pin m has upon it a similar collar m². Upon
these collars the grooved knuckle blanks, indicated in dotted lines, are bent in
the formation of the tubular knuckles so as to permanently fix the pins in the
knuckles as before described and illustrated.
Figure 6 represents in plan and Figure 7 in section partly in elevation, another
form of loose or lift off hinge for a greenhouse the joint pin being connected to
one of the flaps according to my invention. In this case the flap p can be lifted
off the projecting part of the headless joint pin q fixed in the other flap r by
the bending of the grooved knuckle piece of the flap blank over the collars
on the joint pin 9 as before described.
Figure 8 represents a joint pin in which the collar is made separately from
the said pin and secured thereto. In this case a groove is made in the joint pin
and a separate wire collar t is closed in the said groove as represented in the
sectional view of the said pin Figure 8.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed I declare that I claim as my
invention of "Improvements in butt hinges and other hinges" :-
Connecting the short joint pins of loose pin butt hinges and the joint pins and
end or terminal pins of loose or lift off butt and other hinges to the knuckles of
the said hinges by the construction and combination of parts bereinbefore
described and illustrated in the accompanying drawing that is to say, by making
on the joint or other pin to be attached to the knuckle, an annular projection or
collar and making in the knuckle piece of the sheet metal flap of the hinge,
a straight groove or depression in such a position that when the knuckie piece is
bent into a tubular figure, the said groove or depression engages with the

page_text: projection or collar on the joint or other pin and thereby secures the said pin
permanently to the knuckle for the purpose and substantially as described and
illustrated.
Deted the 17th dar of August 1895.
GEOFFREY ARTHUR MARTINEAU.