Improvements in the Hinges or Hinge Joints of Hasps for Trunk Locks and the like, and in other Hinges or Hinge Joints.
Year: 1893

page_text: Date of Application, 27th Dec., 1893-Accepted, 27th Jan., 1894
COMI MIN
Improvements in the Hinges or Hinge Joints of Hasps for Trunk
Locks and the like, and in other Hinges or Hinge Joints.
I, GEORGE DYER WOOD, of Electro Scarboro' Lock Works, 28 Wednesfield:
Road, Willenhall in the County of Stafford, Lock Manufacturer, 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:
In a hinge or hinge joint of a hasp for a trunk lock, or other hinge or hinge-
joint, as usually constructed, the hinge pin is liable to become loose and to slip out
of place, more especially if, as is not infrequently the case owing to the large
quantities of different sizes of hinges or hinge joints produced in the same workshop,
a pin of a lighter gauge of metal and which is intended for a different strength of
hinge is fixed accidentally within a stronger hinge for which a thicker gauge of pin
was intended; and, moreover, the pins are liable to become bent between the points
of support, especially when the distance is considerable.
This invention has for its object to obviate entirely the need for fixing a pin for
use as a bearing in a hinge joint of a hasp for a trunk lock or the like or in other
hinge joint.
"1
The above object is effected by forming a bar or part corresponding to the pin in
one piece of sheet metal with one flap or portion of the hinge or hinge joint, and
bending a part of the metal of the other flap or portion around such bar. The
sheet metal blank to form the portion of the hinge or hinge joint with which such
bar is to be formed is cut straight across along the bottom edge, instead of being
formed with projections as is usual which are to be curled up to receive a pin. A
tubular edge, or what is technically termed by sheet metal workers a "wired edge'
(though there may be no wire in it), is then formed along the whole width of the
lower edge of the blank aforesaid; and this may be conveniently effected by first
forming such edge into a trough shape in suitable tools and then rounding over the
outer edge of the trough to complete the tubular form of the edge. Prior to
forming the wired edge, a slot or opening is cut through the sheet metal in such
position that, when the wired edge has been formed, the slot forms a clear opening
for its whole length alongside of the wired edge and thus the portion of the wired
edge which extends for the length of the slot consists of a tubular bar. The inner
end of a hasp or of the other portion of the hinged joint to that with which the bar is
formed is passed through the slot or opening and bent around the portion of the bar
or wired edge which extends for the length of the opening. The edge may be left
simply hollow as formed, or if desired it may have a wire pushed therein and
riveted at its ends sufficiently to keep it in place, for the purpose of lending
additional strength to such edge.
In order that my invention may be clearly understood, I will now proceed to.
describe the same by reference to the accompanying drawings, of which
Figure 1 illustrates a plan or flat view of a sheet metal blank intended to form
the portion of the hinge joint of a hasp for a trunk lock to which the hasp is
hinged.
Figure 2 is a vertical section through the centre of the blank shewing the lower
edge formed to a trough shape.
Figure 3 is a front clevation of the portion to which the hasp is to be hinged in
its complete form; and
Figure 4 is a vertical section through the centre of the portion shewn by Figure 3.

page_text: and of the upper end of the hasp, shewing the connection between the hasp and the
portion to which it is hinged.
The bottom edge a of the blank shewn by Figure 1 is formed straight across, as
shewn, and a slot or opening is cut through the blank parallel with but some
distance from the edge a. The holes c are merely the bolt holes for use in fixing to
a trunk the completed portion A, shewn by Figure 3, of the hinge or hinge joint.
The next process is to form the lower edge a of the blank into the trough shape
shewn by Figure 2. The portion for receiving the hasp is then completed by
bending the edge a into a complete tubular form as shewn in section by Figure 4.
The portion d of the tubular edge which extends for the length of the slot consists
of a tubular bar and forms, as will be seen, the lower side of the slot. To pivot the
hasp B to the portion A, its upper end is passed through the opening band is bent
around the bar which answers the purpose of the ordinary binge pin and allows
the hasp to be readily turned thereon. As above explained, a wire may be inserted
in the tubular edge to strengthen it, if desired.
As the bar d is formed in one piece of metal with the remainder of the part A, it
is very strong and cannot become loose.
The invention is illustrated in its application to the hinged joint of a hasp only,
but its application to hinges or hinge joints for other purposes will now be obvious
without need for special illustration.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
1. A hinge or hinge joint having a bar or part, which takes the place or answers
the purpose of the ordinary hinge piu, formed in one piece of sheet metal with one
side or member (such, for instance, as the part A) of the hinge or hinge joint,
substantially as described.
2. The improvements in the hinges or hinge joints of hasps for trunk locks and
the like, and in other hinges or hinge joints, substantially as described and shewn
by the drawings herewith.
Dated this 23rd day of December 1893.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant.