AN IMPROVED CONSTRUCTION OF GLAZIER'S DIAMOND
Year: 1853

page_text: LETTERS PATENT to Augustus Radcliffe, of Chichester Place
King's Cross, in the County of Middlesex, Glazier's Diamond
Manufacturer, for the Invention of "AN IMPROVED CONSTRUCTION
OF GLAZIER'S DIAMOND."
Sealed the 19th May 1854, and dated the 21st November 1853.
PROVISIONAL SPECIFICATION left by the said Augustus Radcliffe
at the Office of the Commissioners of Patents, with his Petition,
on the 21st November 1853.
I, AUGUSTUS RADCLIFFE, do hereby declare the nature of the said
Invention for "AN IMPROVED CONSTRUCTION OF GLAZIER'S DIAMOND " to be
as follows:-
The object of this Invention is to connect to the tool commonly
known as the glazier's diamond a means for laying hold of the strips of
glass which are required to be removed from the main body of the
sheet or piece of glass, and thereby to avoid the use of a separate tool.
To this end I form in one edge of a swivel plate which carries the
stone one, two, or more notches having parallel sides, and of a width to
correspond to the different thicknesses of glass in common use. By
this means, when the workman has cut the glass with the diamond, he
can, by applying a notch to the severed strip, nip it off, and thus avoid
the necessity of changing the tool with which he was working. Instead
of forming these notches in the swivel plate they may be made in the
handle of the tool if thought desirable.

page_text: .
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Augustus Radcliffe in the Great Seal Patent
Office on the 19th May 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
AUGUSTUS RADCLIFFE, of Chichester Place, King's Cross, in the County
of Middlesex, Glaziers Diamond Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent bearing date the Twenty-first day of November, in the
year of our Lord One thousand eight hundred and fifty-three, in the
seventeenth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, he said Augustus Radcliffe, Her
special license that I," the said Augustus Radcliffe, 'my executors,
administrators, and assigns, or such others as I, the said Augustus
Radcliffe, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after 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 Inven-
tion for "AN IMPROVED CONSTRUCTION OF GLAZIERS DIAMOND," upon the
condition (amongst others) that I, the said Augustus Radcliffe, by an
instrument in writing under my hand and seal, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause 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.
..
NOW KNOW YE, that I, the said Augustus Radcliffe, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the Drawing here-
unto annexed, and to the letters marked thereon (that is to say):
J.
ני
EXT
The object of this Invention is so to construct the tool commonly
known as the glazier's diamond as to enable the glazier to lay hold of
the strips of glass which he has marked for removal from the main body
of the sheet or piece of glass and nip them off, whereby the necessity
for a separate tool to effect that operation will be avoided. In carrying

page_text: out this Invention I form in one edge of the swivel plate
which carries the diamond, notches having parallel sides, and
of a width to correspond to the different thicknesses of glass
in common use; when, therefore, the workman has cut the
glass with the diamond he can readily nip off the superfluous
or waste pieces by applying the notched swivel plate thereto.
In the accompanying Drawing my improved construction
of glazier's diamond is shewn in side view. a, is the swivel
plate, formed somewhat broader than is usual, and increasing
in breadth towards its inner end to permit of notches b, b, of
different depth being cut therein; this plate is carried by a
swivel pin projecting from a metal stem c, the lower end of
which is inserted in the handle d.
An advantage incidental to this mode of connecting the
swivel pin to the handle is, that the tool is considerably
reduced in length, and may be carried more conveniently in
the glazier's pocket than the ordinary tool. The Drawing
shews but two notches of different width and depth in the
swivel plate, but more may be made therein, if thought
requisite, to suit different thicknesses of glass.
Having now set forth the nature and object of my Inven-
tion of an improved construction of glazier's diamond, and
explained the manner of carrying the same into effect, I wish
it to be understood that under the above in part recited
Letters Patent I claim the adaptation to glazier's diamonds
of a means for facilitating the operations of the glass cutter
as above described.
In witness whereof, I, the said Augustus Radcliffe, have
set my hand and seal, this Nineteenth day of May, in
of our Lord One thousand eight hundred and fifty-fo
AUGUSTUS (L.S.) RADCLIFFE, JUN".