IMPROVEMENTS IN SPRING HINGES
Year: 1885

page_text: I, WILLIAM PINKERTON, of the Ballymena and Larne Railway, Larne, in the
County of Antrim, Ireland, Locomotive Superintendent, do hereby declare the
nature of my said invention for IMPROVEMENTS IN SPRING HINGES," to be as
follows, that is to say :-
"
My said Invention consists of an improved, simple, and compact arrangement or
construction of spring hinge which is applicable for doors, gates, shutters, and
the like.
In hinges having a comparatively long outer or movable part I fix to such outer
part the outer end of a stiff steel blade by riveting or otherwise. The steel blade
is shaped and set so that its inner end tends to stand off from the hinge, and its
extreme inner end is bended and shaped so as to engage inside of a slightly projecting
catch formed or fixed on the fixed part of the hinges. When the door or part to
which the movable part of the hinges is fixed is opened, the spring is compressed
and when free to react operates so as to close the door. When the hinges are
made with a short movable part the spring may be fixed to the door or other part
carried by the binges. A slot may be made at the inner end of the movable hinge
or a recess may be made in the door at that part for the entrance of the inner end
of the spring when the door is opened, the arrangement being thereby rendered
more compact.
Dated this twentieth day of And: 100-
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in Spring Hinges.
I, WILLIAM PINKERTON, of the Ballymena and Larne Railway, Larne, in the
County of Antrim, Ireland, Locomotive Superintendent, 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, that
is to say:
My said Invention consists of an improved, simple, and compact arrangement or
construction of spring hinge which is applicable for doors, gates, shutters, and
the like.
In hinges having a comparatively long outer or movable part I fix to such outer
part the outer end of a stiff steel blade by riveting or otherwise. The steel blade
is shaped and set so that its inner end tends to stand off from the hinge, and its
extreme inner end is bended and shaped so as to engage inside of a slightly pro-
jecting catch formed or fixed on the fixed part of the hinges. When the door or part
to which the movable part of the hinges is fixed is opened, the spring is compressed
When the hinges are
and when free to react operates so as to close the door.
made with a short movable part the spring may be fixed to the door or other part
carried by the hinges. A slot may be made at the inner end of the movable hinge
or a recess may be made in the door at that part for the entrance of the inner end
of the spring when the door is opened, the arrangement being thereby rendered
more compact.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and showing my improved spring hinges.
Figure, 1, is an elevation and figure, 2, is a horizontal section of my improved
spring hinges in the position assumed when the door or other part to which they
may be applied is shut. Figure, 3, is a horizontal section showing the position
assumed when the door is partly opened. In these drawings the same reference
numerals are used to mark the same or like parts wherever they are repeated.
In carrying out my Invention I fix to the outer or movable part, 4, of the hinges,
when it is made comparatively long, as shown; the outer end of a stiff steel blade, 5,
by rivets, 6. The inner end of this steel blade, 5, engages inside of a slightly pro-
jecting catch, 7, formed or fixed on the fixed part, 8, of the hinges. A slot, 9, is
made at the inner end of the movable part of the hinge and a recess may be made
in the door at that part for the entrance of the inner end of the spring, 5, when
the door is opened. When the door or part to which the movable part, 4, of the
hinges is fixed is opened the spring is compressed as shown in figure, 3, and when
free to react operates so as to close the door.
If the door is opened beyond a certain extent depending on the precise forms
and proportions of the spring blade, 5, and catch, 7, the spring blado will then
assume a position in which it will keep the door open; and this action may be
availed of when it is wished to keep the door open for some time.

page_text: 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 hinges in which a spring blade fixed to the movable part is
combined with a projecting catch on the fixed part substantially in the manner
herein before described and as shown in the accompanying drawings.
EDMUND HUNT,
Applicant's Agent.