Year: 1887

page_text: Date of Application, 27th Aug., 1887
Complete Left, 25th Nov., 1887
Complete Accepted, 27th Dec., 1887
We FRANÇOIS MUNIER of Quillan, Aude, France, Hat-Maker, and NUMA SALVAIRE,
of Limoux, Aude, France, Banker, do hereby declare the nature of this invention to
be as follows:-
This invention relates to an improved method or process of colouring or staining
wood by injecting colours or stains therein and is applicable when it is desired to
colour or stain the whole mass or substance of the timber in such a manner that cheap
or inferior qualities of wood may at a moderate cost be made more or less to resemble
expensive and comparatively rare kinds of wood. It has been already proposed to
inject cold coloring matter or stains into timber by means of force pumps but when
colouring or staining materials are so used cold the process is open to serious objection
in practice owing to its being necessary to employ a pressure so high that it has been
liable frequently to burst the logs or pieces of wood under operation. Now this
invention is designed to obviate the serious defect referred to for which purpose
according thereto caps or casings are applied to the respective ends of a log or part of
a tree (newly felled) to be treated the wood is heated and by any suitable meansithe
sap is withdrawn or exhausted and heated colouring or staining matter of suitable
kind according to the character of the result to be produced is drawn or forced into
the wood to take the place of the sap withdrawn therefrom. Now this invention may
be advantageously carried out in the following manner. A log or part of a newly
felled tree is laid horizontally on a suitable support or supports and its two ends (which
may be suitably trimmed for the purpose) are inserted within or covered by caps that
may be of conical or conoidal form which are forced by any known or suitable means
such as screw bolts or the like tightly upon the ends of the wood so as to be in contact
with the same all round in such a manner as to form steam tight joints round the
edges at the ends of the wood while the smaller end of each cap forms a conical or
conoidal cavity of which there will thus be one at each end of the log or part of a
tree. The conical or conoided cavity at one end is connected by a suitable pipe with
an exhaustor such a pump, and the cavity at the other end is connected with a forcing
apparatus such as a force pump (which may be conveniently be supplied with a pressure

page_text: guage) by which the colouring matter or stain is to be forced into the pores of the
wood. The wood to be treated is heated in order to expand the fibre and to facilitate
its treatment. The colouring matter or stain which may be of any suitable kind
according to the effect to be produced as will be well understood is placed in a tank
heated by steam in which the colour or stain is raised to the boiling point the forcing
and exhausting apparatus or pumps are set to work and by their combined action the
sap is drawn out of the log or part of a tree and is replaced by the heated colouring
matter being forced in.
When the operation is complete the log or part of a tree is allowed to dry and when
dry or before it is actually dry it may be cut up in the usual manner.
Wood treated as described will be found to be coloured or stained throughout
according to the colouring matter or stain employed.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improved Method or Process of Colouring or Staining Wood.
We, FRANÇOIS MUNIER of Quillan, Aude, France, Hat Maker, and NUMA SALVAIRE,
of Limoux, Aude, France, Banker, do hereby declare the nature of this invention,
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention relates to an improved method or process of colouring or staining
wood by injecting colours or stains therein and is applicable when it is desired to
colour or stain the whole mass or substance of the timber in such a manner that cheap
or inferior qualities of wood may at a moderate cost be made more or less to resemble
expensive and comparatively rare kinds of wood. It has been already proposed to
inject cold colouring matter or stains into timber by means of force pumps but when
colouring or staining materials are so used cold the process is open to serious objection
in practice owing to its being necessary to employ a pressure so high that it has been
liable frequently to burst the logs or pieces of wood under operation. Now this
invention is designed to obviate the serious defect referred to for which purpose
according thereto caps or casings are applied to the respective ends of a log or part
of a tree (newly felled) to be treated the wood is heated and by any suitable means
the sap is withdrawn or exhausted and heated colouring or staining matter of suitable
kind according to the character of the result to be produced is drawn or forced into
the wood to take the place of the sap withdrawn therefrom. Now this invention may
be advantageously carried out in the following manner. A log or part of a newly
felled tree is laid horizontally on a suitable support or supports and its two ends
(which may be suitably trimmed for the purpose) are inserted within or covered by
cups may be of conical or conoidal form which are forced by any known or suitable
means such as screw bolts or the like tightly upon the ends of the wood so as to be
in contact with the same all round in such a manner as to form steam tight joints
round the edges at the ends of the wood while the smaller end of each cup forms a
conical or conoidal cavity of which there will thus be one at each end of the log or
part of a tree. The conical or conoidal cavity at one end is connected by a suitable
pipe with an exhaustor such a pump, and the cavity at the other end is connected
with a forcing apparatus such as a force pump (which may be conveniently supplied
with a pressure guage) by which the coloring matter or stain is to be forced into the
pores of the wood. The wood to be treated is heated in order to expand the fibre and
to facilitate its treatment. The colouring matter or stain which may be of any suitable
kind according to the effect to be produced as will be well understood is placed in a
tank heated by steam in which the colour or stain is raised to the boiling point the
forcing and exhausting apparatus or pumps are set to work and by their combined
action the sap is drawn out of the log or part of a tree and is replaced by the heated
colouring matter being forced in,

page_text: When the operation is complete the log or part of a tree is allowed to dry and when
dry or before it is actually dry it may be cut up in the usual manner.
Wood treated as described will be found to be coloured or stained throughout
according to the colouring matter or stain employed.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that what
wo claim is :-
(1) Coloring or staining wood by injecting colour in the state of boiling liquid at
one extremity of a tree or trunk freshly cut the operation being facilitated by
exhausting at the other extremity of the tree or trunk substantially as described.
(2) Wood coloured or stained substantially in the manner hereinabove described.
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