AN IMPROVED APPARATUS FOR FACILITATING THE WHETTING OF GRAVING TOOLS
Year: 1874

page_text: LETTERS PATENT to Edward Primerose Howard Vaughan, F.C.S., of
54, Chancery Lane, in the County of Middlesex, Patent Agent,
for the Invention of "AN IMPROVED APPARATUS FOR FACILITATING THE
WHETTING OF GRAVING TOOLS."-A communication from abroad by
Valentin Messier, residing at Paris, in the Republic of France.
PROVISIONAL SPECIFICATION left by the said Edward Primerose
Howard Vaughan at the Office of the Commissioners of Patents,
with his Petition, on the 25th April 1874.
I, EDWARD PRIMEROSE HOWARD VAUGHAN, F.O.S., of 54, Chancery
Lane, in the County of Middlesex, Patent Agent, do hereby declaro
the nature of the said Invention for "AN IMPROVED APPARATUS FOR
FACILITATING THE WHETTING OF GRAVING TOOLS," being a communication to
me from abroad by Valentin Messier, residing at Paris, in the Republic
of France, to be as follows:-
This Invention relates to an improved arrangement of haft or holder
by means of which a number of graving tools may be simultaneously
whetted or set at a given angle on the ordinary, whetstone.

page_text: .
Figure 1 of the accompanying Drawing is a longitudinal section of
the apparatus; Figure 2 is a top view of the same.
A, A, are oblong blocks of box, ebony, or other suitable wood, placed
at each side of a central block B, B, the middle of which is chambered
to receive the superposed wooden lamels C, C, C, C. These lamels, the
number of which may be varied at will, are traversed by the spindle D,
and so arranged as to move backwards and forwards together when
displaced by the metal plate F to which is fixed the upper end of the
spindle D. In the sides of this sheaf of moveable lamels are cut any
required number of grooves G, G, G, to receive the shanks of the graving
tools which are secured in position by the side blocks A, A, (lined
with sheet rubber or felt as in A¹, Fig. 3), and tightened up by the
pressure screws I, I.
When using this apparatus the grooves G, G, are brought to the
required angle by the displacement of the lamels C, C, and the graving
tools are placed therein as in Fig. 1 with their points projecting
slightly below the under surface of the blocks which are then tightened
up by the screws I, I. This done the apparatus is passed over the
whetstone J until the cutting edges of the gravers are ground down to
the level of the wood.
Figure 4 represents the gravers set at a different angle from those of
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Primerose Howard Vaughan in the Great
Seal Patent Office on the 23rd October 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
PRIMEROSE HOWARD VAUGHAN, F.C.S., of 54, Chancery Lane, in the
County of Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of April, in the year of our
Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Edward Primerose Howard Vaughan,
2

page_text: Her special licence that I, the said Edward Primerose Howard Vaughan,
my executors, administrators, and assigns, or such others as I, the said
Edward Primerose Howard Vaughan, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time
3 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 IMPROVED APPARATUS FOR FACILITATING THE
WHETTING OF GRAVING TOOLS," being a communication to me from abroad
by Valentin Messier, residing at Paris, in the Republic of France, upon
the condition (amongst others) that I, the said Edward Primorose
Howard Vaughan, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, 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 Edward Primerose Howard Vaughan,
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 accom-
panying Drawings, that is to say:-
This Invention relates to an improved arrangement of haft or holder
by means of which a number of graving tools may be simultaneously
whetted or set at a given angle on the ordinary whetstone.
Figure 1 of the accompanying Drawings is a longitudinal section of
the apparatus; Figure 2 is a top view of the same.
A, A, are oblong blocks of box, ebony, or other suitable wood, placed
at each side of a central block B, B, the middle of which is chambered
to receive the superposed wooden lamels C, C, C, C. Those lamels, the
number of which may be varied at will, are traversed by the spindle D,
and so arranged as to move backwards and forwards together when
displaced by the metal plate F to which is fixed the upper end of the
spindle D. In the sides of this sheaf of moveable lamels are cut any
required number of grooves G, G, G, to receive the shanks of the
graving tools H, H, which are secured in position by the side blocks A, A,

page_text: (lined with sheet rubber or felt, as in A', Fig. 3) and tightened up by
the pressure screws I, I.
When using this apparatus the grooves G, G, are brought to the
required angle by the displacement of the lamels C, C, and the graving
tools are placed therein, as in Figure 1, with their points projecting
slightly below the under surface of the blocks, which are then tightened
up by the screws I, I. This done the apparatus is passed over the
whetstone J until the cutting edges of the gravers are ground down to
the level of the wood.
Figure 4 represents the gravers set at a different angle from those of
Figure 1.
Having now described and ascertained the nature of the said Inven-
tion, and the manner of carrying it into effect, I declare that what I
claim and desire to protect by Letters Patent is, a haft or holder for the
simultaneous whetting at a given angle of a number of graving tools, 1
constructed substantially as herein set forth and shewn in the Figures
of the accompanying Drawings.
In witness whereof, I, the said Edward Primerose Howard Vaughan,
have hereunto set my hand and seal, this Twenty-first day of
October, in the year of our Lord One thousand eight hundred 2
and seventy-four.