IMPROVEMENTS IN THE MANUFACTURE OF DOOR PLATES, NAME PLATES, STENCIL PLATES, AND SIGN PLATES, SUITABLE FOR SIGN BOARDS FOR THE FRONTS AND OTHER PARTS OF SHOPS AND OTHER BUILDINGS, AND FOR OTHER SIMILAR PURPOSES
Year: 1868

page_text: PROVISIONAL SPECIFICATION left by Louis Hannart, Nicholas
Alphonse Aubertin, and William John Cunningham at the Office
of the Commissioners of Patents, with his Petition, on the 9th
October 1868.
We, LOUIS HANNART and NICHOLAS ALPHONSE AUBERTIN, the
younger, both of King Street, Cheapside, in the City of London, and
WILLIAM JOHN CUNNINGHAM, of Oxford Street, in the County of
Middlesex, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF DOOR PLATES, NAME PLATES, STENCIL
PLATES, AND SIGN PLATES, SUITABLE FOR SIGN BOARDS FOR THE FRONTS AND OTHER
PARTS OF SHOPS AND OTHER BUILDINGS, AND FOR OTHER SIMILAR PURPOSES," to be
as follows:-
This Invention relates to the manufacture of stencil plates, door, name,
or sign plates, and other plates of a similar character; and the features
of novelty which constitute these improvements consist in producing the
aforesaid plates partly by mechanical means instead of wholly by manual
labor as heretofore practised. For example, to manufacture door or
name plates it is usual to cut or engrave the letters by hand and
with colored wax. By these improvements we take a thin sheet of
and cut the letters entirely out by means of a saw or other suitable

page_text: instrument, the plate being moved on a table in the direction of the
shape of the letters, similar to fretwork in wood carving; after which the
plate so cut out is fixed to a plain piece of metal or other suitable
substance or material either painted or colored on one side, or a colored
substance may be placed between the two plates, or the letters may
be filled with colored wax as commonly practised. Plates cut out as
above described are suitable for stencil plates and can be made with
any ornament or device by the above means. Or we make a wood pattern
by cutting out the letters as before stated and cast therefrom, and fill in
with wax or other composition; or we obtain a counter mould from the
pattern to produce cast plates with raised letters.
Another mode of effecting these improvements is as follows:-We
take type and set up in any suitable holder to form the required name,
word or words, or sentence or sentences; upon this we place a piece of
sheet lead which we subject to pressure in a press, thereby obtaining an
impression from the said type; we then place upon this impressed piece
of lead a sheet of gutta percha in a plastic state or other suitable material,
and this we subject to pressure, thereby obtaining an impression in alto-
relief from the bas-relief leaden matrix; this gutta percha impression we
employ as a pattern for moulding in sand in the usual way of casting or
founding in metal. Name and sign plates thus made may, if desired, have
wax or other composition run round and between the letters or characters
to form a ground flush with the surface of the letters, or a bas-relief
pattern may be made, and when cast from the letters may be filled in
with colored wax or other composition, the ground in this case being of
metal.