Improvements in Hinges.
Year: 1898

page_text: Improvements in Hinges.
I, THOMAS SMITII, of Lombard Street, in the City of Birmingham, Manager
of Works, do hereby declare the nature of this invention to be as follows:-
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My invention relates to hinges of that type known as take-off" hinges, in
which one flap or section can be lifted away from or off the other flap or half-
part, and consists in providing the inward or opposed meeting end of the knuckle
of the one flap, which knuckle has a hole partly up its middle for receiving the
peg of the other part, with a spriggot, sleeve or collar which fits within a
like-shaped sinking made at the meeting end of the knuckle of the other member
and at the base of the peg.
Thus, one half of the hinge consists of a flap with a half knuckle, fitted with
a double conical peg, one end of which is made fast and driven up the middle of
the knuckle, whilst an annular shoulder separates the one conical part of the
peg from the other and lies at the bottom of a well or sinking, with the outward
portion of the peg extending to nearly the length of the flap, whilst a curved
clearance is formed at that inner termination of the flap which is opposed to the
pin, to admit of the sections closing flat upon one another. The other section
is of a like construction as the other and has a conical hole made up its middle
from the inner end and corresponding to the exposed part of the peg and having
a spriggot, sleeve or annular extension at the entrance to the hole which fits into
the socket of the other part and bears upon the bottom thereof, so that the
principal strain is removed from the peg, and the wear is distributed over the
end of the spriggot sleeve and the surfaces of the knuckles.
Dated this 96th day of Tonu 1908
I, THOMAS SMITH, of Lombard Street, in the City of Birmingham, Manager
of Works, 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 hinges of that type known as take-off" hinges, in
which one flap or section can be lifted away from or off the other flap or half-

page_text: part, and consists in providing the inward or opposed meeting end of the knuckle
of the one flap, (which knuckle has a hole partly up its middle for receiving the
peg of the other part), with a spriggot, dowel sleeve or collar which fits within a
like-shaped sinking made at the meeting end of the knuckle of the other member
and at the base of the peg.
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Figure 1 of the accompanying drawing represents a front clevation of a
take-off" hinge for railway-carriage doors and the like constructed according
to my invention.
Figure 2 is a view showing the joint of the said hinge in section.
Figure 3 is an elevation of the joint pin, separately.
Figure 4 is a like view as Figure 2, but showing the halves of the hinge lifted
apart. This view also shows the sections in edge view.
Figure 5 represents the separated halves. in elevation.
The same letters of reference indicate corresponding parts in the several figures
of the drawing.
In this arrangement, one half a, of the hinge consists of a flap a¹, with a half
knuckle a³, fitted with a fixed and double conical peg c, (preferably made of steel)
one end c¹, of which is made fast and driven up the hole a³, in the said knuckle a³,
whilst an annular shoulder c, separates the aforesaid conical part of the peg from
the other half c³, and lies at the bottom of a well or sinking a², formed by an
enlargement of the mouth end of the said hole a³, whilst a curved clearance a³,
is formed at that part of the flap which comes above the knuckle to admit of the
sections a, b, of the hinge closing flat upon one another. The other section b, is
of a like construction as the first-named a, and has a conical hole 63, made up the
middle of the knuckle 62, from the inner end, corresponding to the exposed
part of the peg and having a dowel or tenon-like spriggot, sleeve or annular
extension 6, formed around the entrance to the said hole 63, which is adapted to
take into and fit within the socket a', at the entrance to the hole a³, in the other
part and to bear upon the collar &, of the pin c, coming at the bottom thereof.
The section b, is provided alike unto the part a, with a clearance 65, to admit
of the respective flaps folding close together.
By thus constructing the sections or parts of a take-off hinge, with a collar or
sleeve on the inner end of the knuckle of the one flap taking and socketting
within a corresponding socket or enlargement of the pin hole in the opposed end
of the knuckle of the other section, the joint pin is relieved of much of the strain
which comes upon the hinge and the wear is distributed over the end of the
spriggot sleeve and the surface of the knuckles. The steady and true working
of the hinge is also ensured, whilst by the employment of a collared steel pin
in conjunction with a brass or like hinge, wearing surfaces of different metal
are provided instead of all the parts being of the same material as heretofore.
The construction of the hinge is also such as admits of the whole of the parts
being machine made.
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:
First In hinges for doors and the like, having the sections or flaps connected
by a joint pin or axis, providing the inward end of a knuckle of the one flap or
section with a dowel or tenon sleeve, collar or spriggot, which takes and fits
within a corresponding socket or sinking made at the opposed or meeting end
of a knuckle of another flap or section, substantially for the purpose herein
described.
Secondly-In hinges for doors and the like, connecting together the com-
ponent flaps or sections by means of a double ended and collared pin, preferably
made of dis-similar metal to the body of the hinge, substantially as and for the
purpose herein described and set forth.

page_text: Thirdly: A "take-off" hinge for doors and the like, wherein the flaps or
sections are connected together by a double coned and collared pin (preferably
steel) whose ends respectively take into holes in the flap knuckles, the inward end
of one of which is provided with a dowel or tenan-like sleeve or spriggot, adapted
to take and fit within a corresponding socket or sinking made in the opposed or
meeting end of the other knuckle and to come upon the collar of the joint pin
lying within the said sinking, substantially as and for the purpose herein described
and set forth.
Dattu VITS hot day or september 1898.
THOMAS SMITH.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.