IMPROVEMENTS IN THE MANUFACTURE OF SWIVELS
Year: 1864

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and Foreign
Patent Offices, 24, Rue du Mont Thabor, Paris, in the Empire of
France, and 38, Porchester Terrace, Bayswater, in the County of
Middlesex, Patent Agent, for the Invention of "IMPROVEMENTS IN THE
MANUFACTURE OF SWIVELS."-A communication from Georges Edouard
Hachin residing at Rue de Braque. Paris. in the Empire of France.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonneville at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 30th May 1864, pursuant to the 9th Section of the
Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 24, Rue du
Mont Thabor, Paris, in the Empire of France, and 38, Porchester Terrace,
Bayswater, in the County of Middlesex, Patent Agent, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
THE MANUFACTURE OF SWIVELS," Communicated to me by Georges Edouard
Hachin, a person resident at Rue de Braque, Paris, in the Empire of France,
aforesaid, and have petitioned Her Majesty to grant unto me, my executors,
administrators and assigns, Her Royal Letters Patent for the same, and have
made solemn Declaration that it is a communication.

page_text: NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare that the following Complete Specification under my hand and seal
fully describes and ascertains the nature of the said Invention, and the manner
in which the same is to be performed, reference being had to the accom-
panying Drawing, that is to say :-
This Invention consists in making swivels from one piece of metal by
stamping and bending without filing or soldering.
In the accompanying Drawing the first ten Figures represent different
stages of manufacture of swivels by the method forming the subject of this
application, and the eleventh and twelfth represent another way of narrowing
the part intended for making the ring, which may be substituted for that
represented in Fig. 3 and other views.
These improvements have a specially economical object, and are applicable
to a wholesale manufacture of the articles in question from wire in coils,
instead of being, as is usually the case, cast, soldered, cr filed. I proceed as
follows I take a piece of wire a of the necessary length and thickness, and
punch at one end a tenon c, and at the other end a mortice b, see Figs. 1 and 2.
I make this tenon to fit the mortice exactly, and this operation forms the
most important part of the Invention. Next I cut off the part marked d, d,
Fig. 3, or stamp out the middle of the part intended for making the ring, as
represented in Fig. 11. The latter method (Fig. 11) is more specially
intended for gold or silver plated swivels; it may be easily understood that
the parts d, d, Fig. 3, being removed, a part of the swivel, the ring would be
unplated, whereas when the two sides of the opening a are firmly pressed
together in forming the ring, see Fig. 12, the plating remains uninjured. I
next bend the piece of wire successively into the positions or shapes shown in
Figures 4, 5, 6, and 7. Next I form the ring d by stamping, and give it a more
perfectly circular section, see Fig. 8.
Figure 9 represents the swivel with the part à bent over towards the ring,
and requiring only the pivot and spring. I now pierce the mortice and tenon
and adjust the pin i and spring j, and then I have only to cut the part a at the
point in order to complete the swivel. I can also if necessary ornament the
swivel by stamping or in any other way.
In the manner above described I obtain directly from the coil, without
preparation, the metal of the length necessary for forming my swivel, presenting
at one end the mortice and at the other end the tenon, both perfectly adapted,
forming together the hinge of the loop without filing.
Having now described the nature of the said Invention, and the manner in
which the same is to be performed, what I claim and wish to secure by

page_text: Letters Patent is, making swivels of any suitable size, or from any suitable
metal, and of one piece, in the manner substantially above described, by
bending, punching, and stamping or pressing, without either soldering or
filing.
And I also claim the method of narrowing the ring end of the metal
without destroying the plate at its surface, by the process above described and
represented in Figs. 11 and 12 of the annexed Drawings.
In witness whereof, I, the said Henri Adrien Bonneville, have hereunto
set my hand and seal, this Thirtieth day of May, in the year of our
Lord One thousand eight hundred and sixty-four.
H. BONNEVILLE. (L.S.)