AN IMPROVEMENT OR ENTO IN THE MANTRACTURE OF CERTAIN KINDS OF SPECTACLE FRAMES IMPROVEMEN " PROVISIONAL SPECIFICATION
Year: 1854

page_text: LETTERS PATENT to John Greaves, of Birmingham, in the County of
Warwick, Manufacturer, and Charles Michael Greaves, of Birmingham
aforesaid, Manufacturer, for the Invention of "AN IMPROVEMENT OR
ENTO IN THE MANTRACTURE OF CERTAIN KINDS OF SPECTACLE FRAMES
IMPROVEMEN
"
PROVISIONAL SPECIFICATION left by the said John Greaves and Charles,
Michael Greaves at the Office of the Commissioners of Patents, with
their Petition, on the 15th August 1854.
We, JOHN GREAVES, of Birmingham, in the County of Warwick, Manufac-
turer, and CHARLES MICHAEL GREAVES, of Birmingham aforesaid, Manufac-
turer, do hereby declare the nature of the said Invention for "AN IMPROVEMENT
OR IMPROVEMENTS IN THE MANUFACTURE OP CERTAIN KINDS OF SPECTACLE FRAMES "
to be as follows:-.
Our said Invention relates to such spectacle frames as are made of metal,
and especially such as are made of the alloys called German silver and brass.
Instead of making the said spectacle frames by casting, we make them by
cutting them from sheet metal, by means of dies or cutting tools and a stamp
or press. The projections of which the joints of the frame are made are also
constructed of sheet metal. We cut suitably formed pieces for the joints

page_text: from the waste cut out of the "eyes" of the frame, and two of the said pieces
are connected by soldering or otherwise with each side of the frame. The
frame is divided at the points where the said pieces are attached, and a joint
is thereby formed, similar to the ordinary joint. The pieces of which the joints
are made may be pierced with the required holes, as well as cut out by one
operation. The essential features in our Invention are making metallic spectacle
frames by cutting from sheet metal, and forming the joint by attaching suitably
formed pieces of metal to the sides of the frame..
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Greaves and Charles Michael Greaves in the Great Seal
Patent Office on the 18th February 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
GREAVES, of Birmingham, in the County of Warwick, Manufacturer, and
CHARLES MICHAEL GREAVES, of Birmingham aforesaid, Manufacturer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of August, in the year of our Lord One.
thousand eight hundred and fifty-four, in the eighteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
John Greaves and Charles Michael Greaves, Her special licence that we, the
said John Greaves and Charles Michael Greaves, our executors, administrators,
and assigns, or such others as we. the said John Greaves and Charles Michael
Greaves, our executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVEMENT OR
IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN KINDS OP SPECTACLE FRAMES,"
upon the condition (amongst others) that we, the said John Greaves and
Charles Michael Greaves, by an instrument in writing under our hands and
seals, or under the hand and seal of one of us, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same was
to be performed, and causo the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.

page_text: NOW KNOW YE, that we, the said John Greaves and Charles Michael
Greaves, do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, that is to say:
Our Invention relates to such spectacle frames as are made of metal, and
especially such as are made of the alloys called German silver and brass; or
of such other alloys or metals as may be rolled into sheets and cut out
at a press. Instead of making the said spectacle frames by casting, as is
usual,, we make the same by cutting them from sheet metal, by means of
dies or cutting tools and a stamp or press. Figure 1 represents, in
elevation, the blank for a spectacle frame, cut out of a sheet of metal, and
Figure 2 represents a section of the same. The projections of which the
joints of the spectacle frame are made are also cut out of sheet metal; one
of these projections is shewn in Figure 3. In order to construct the joints of
the spectacle frame, two of the pieces, represented in Figure 3, are placed at
each end of the blank, Figure 1, as represented in elevation in Figure 4, and
in section in Figure 5. The said projections are marked a in the said Figures
4 and 5. The said projections a are attached to the spectacle frame by
soldering, and when the said frame is cut through at the points marked 6 in
Figure 4, and the projections a trimmed, by filing or otherwise, the said pro-.
jections a constitute the joint c, in Figures 8, 9, and 10. During the soldering
process it is necessary to fix the projections a in their proper place on the
spectacle frame. This may be done by cutting grooves on the spectacle frame,
as represented at d, in Figure 1, in which said grooves the projections fit, as
shewn in Figure 5; or the said projections may be placed on the spectacle
frame without the formation of the grooves d, Figure 1; and the said pro-
jections may be fixed on the frame by the forked end of the projection being
-made to embrace the frame, as represented in Figures 6 and 7. The pieces-
of metal, Figure 3, of which the joints are made, may be pierced with the
required holes as well as cut out. at one operation. Figure 8 represents in
elevation, Figure 9 in section, and Figure 10 in plan, a pair of spectacle.
frames made according to our Invention. They are lighter and neater in
appearance than spectacle frames made by casting. The cutting out of the
blank, Figures 1 and 2, and the pieces forming the joint, Figure 3, is effected
by the ordinary method of pressing or stamping, which we do not think it
necessary to describe.
-.
Having now described the nature of our said Invention, and the manner of
carrying the same in effect, we wish it to be understood that we do not
limit ourselves to the precise methods herein described, as the same may be
'

page_text: varied without departing from the nature of our said Invention; but we claim
as our Invention,―
Firstly, making spectacle frames by cutting the same out of sheet metal, as
herein described.
Secondly, forming the joints of spectacle frames, by attaching suitably
formed pieces of metal to the sides of the said spectacle frames, as herein
described and represented in the accompanying Drawing.
In witness whereof, we, the said John Greaves and Charles Michael
Greaves, have hereunto set our hands and seals, this Twelfth day of
February, in the year of our Lord One thousand eight hundred and
fifty-five.
Witness,
GEORGE SHAW.
JOHN GREAVES.
(L.S.)
CHARLES MICHAEL GREAVES. (L.S.)