IMPROVEMENTS IN HOOKS OR CLASPS, AND IN THE MEANS FOR SECURING THEM TO SHOES, GAITERS, AND OTHER ARTICLES
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by Léon Gingembre at the
Office of the Commissioners of Patents, with his Petition, on the
21st October 1873.
I, LÉON GINGEMBRE, fils, of the Firm L. Gingembre et Fils, of
Boulevard de Strasbourg, No. 23, at Paris, Manufacturers, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN HOOKS OR
CLASPS, AND IN THE MEANS FOR SECURING THEM TO SHOES, GAITERS, AND OTHER
ARTICLES," to be as follows:-
My Invention relates to the construction of a hook for the exterior
lacing of shoes, boots, gaiters, and similar articles, by which great
strength is gained as well as great economy in manufacture.
I proceed with reference to the annexed Drawings to describe the
manner in which my new hook is produced.
I cut a certain length a from a piece of brass wire or other suitable
metal which I submit to a first flattening in order to form it into a bar
a², Figure 2, and then to a second flattening which brings it to the con-
figuration of a long thin plate a³, Figure 3; I then give it a blow from
a plunger between suitable matrices which causes the plate to become
circularly formed at the top and bottom_with a narrower connection or

page_text: plate between the circular ends, and with one of the circular ends
stamped with a round or preferably a square hole, as seen at a³, Figure 4,
so as to form a sort of head at 6 and an eylet at c at either end. This
stamped piece a³ is then bent or doubled upon itself so as to form a hook
a², Figure 5, ready for placing in position. I also form separately by
stamping a tubular rod d with a foot f, Figure 6, or Figure 6*, so as to
become a rivet. This rivet is for the purpose of passing through the
leather or other substance of the boot or other article, and to enter into
the square hole of the eyelet c of the hook in order to be fixed or set
therein, as shown at Figure 7, which is a section of the hook fixed by its
rivet upon a strip of leather 93. Besides the blow given to the rivet for
fixing or setting it in the hook upon the leather I give it also an interior
setting by spreading out the hollow rivet interiorly by means of a
plunger of triangular or other suitable form. By this arrangement the
hook is fixed very solidly upon the leather or other substance, for the
foot of the rivet d constitutes a base of great resisting force, and
further the square form of the eyelet c prevents the hook from turning
round upon the leather.
1
The hook can also be formed in another manner:-I take a rod or
wire of metal g, Figure 8, the length of which corresponds with the size
of the hook to be formed; I bend this wire into somewhat the shape of
Figure 8, but so that one circle is larger than the other, as shown at
Figure 9. The bent wire so shaped is then again bent like the plate in
the first instance by pushing the two circles towards one another into
the form of a hook, Figure 10. This hook like the other has the square
or round eyelet to receive the rivet d, Figure 6. The head of this
arrangement of hook is of course open, while in the other instance it is
solid.