CERTAIN IMPROVEMENTS IN SPECTACLES
Year: 1850

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TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
BUONAPART ANDERSON, of Gravesend, in the County of Kent, Optician, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Thirtieth day of
November, One thousand eight hundred and fifty, in the fourteenth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Frederick Buonapart Anderson, my exors, admors, and assigns,
Her especial licence, full power, sole privilege and authority, that I, the
said Frederick Buonapart Anderson, my exors, admors, and assigns, or
such others as 1, the said Frederick Buonapart Anderson, my exors, admors,
or assigns, should at any time agree with,, and no others, from time to time
and at all times during the term of years therein expressed, should and
lawfully might make, use, exercise, and vend, within England, Wales, and the
Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN
SPECTACLES;" in which said. Letters Patent is contained a proviso that I, the
said Frederick Buonapart Anderson, shall cause a particular description of
the nature of my said Invention, and in what manner the same is to be per-
formed, by an instrument in writing under my hand and seal, to be inrolled in
Her Majesty's High Court of Chancery within six calender months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
annear

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that i compliance with the said proviso, I, the said
Frederick Buonapart Anderson, do hereby declare that the nature of my said
Invention, and in what manner the same is to be performed, are fully de-
scribed and ascertained in and by the present Specification thereof, reference
being had to the Drawings hereunto annexed, that is to say-
My improvements have for their object the construction of spectacles in
such manner, that when taken from the face the side pieces or "temples" shall
fold over the frame and become closed without the inconvenience of applying
the hands to fold them up, and whereby also the liability to fall from the face
is to a great extent prevented.
Figures 1 and 2 are representations of a pair of spectacles constructed
according to my said improvements; Figures 3, 4, 5, 6, 7, 8, 9, and 10 are
separate views of the different parts of which the joints are composed;
Figures 3 and 4 are side and edge views, and Figure 5 a section, of the outer
lialf of the joint, which forms part of the frame. This part of the joint is
formed by slotting out the solid metal, and not by the junction of the two sides
of the frame as usual. The other side of the frame-b is made much shorter,
and is connected by a separate screw. Figures 6 and 7 are side and edge
views, and Figure 8 a section, of the joint end of the temple," which fits into
the slot formed in 4, and like it is slotted out in the centre of the joint for the
purpose of receiving a convolute spring c, shewn in Figure 9. The innermost
end of the spring is inserted into a slit made in the pin of the joint; the other
end of the spring is slightly bent outward, so as to catch upon the edge of the
slot formed in a. When the rivet or pin of the joint is fixed in its place, the
spring is so set as to cause the temples" to lie flat upon the frame (as
represented in Figures 1 and 2), and that when the spectacles are on the face
the spring causes the temples to exert a slight pressure against the head of
the wearer, and keep them from falling off.
On the frame joint I aflix a small eye or loop e; Figures 2, 3, and 5, for
the purpose of receiving a ribbon or guard to render the spectacles more
easily portable.
The joints of the temples" of spectacle frames which are formed in the
usual manner, namely, by notching out the two sides of the frame, may have
the temple formed, as above described, for the reception of a convolute
spring, in which case the same results would be obtained, but I prefer the
arrangements first described.
And having now described my said Invention, and in what manner the
same is to be performed, I declare I claim the constructing of spectacles with
springs inserted into the joints for the purposes of making the temples™" fold

page_text: down upon the frame when not in use, and for retaining the spectacles when
on from falling off the head of the wearer, as herein-before exemplified and
described.
And, second, I claim the afflixing of an eye or loop to the joints of spectacles
for the purpose of rendering them more easily portable, as herein-before
described.
In witness whereof, I, the. said Frederick Buonapart Anderson, have
hereunto set my hand and seal, this Thirtieth day of May, in 'the year
of our Lord One thousand eight hundred and fifty-one.