and other Fluids.
Year: 1885

page_text: Preservative and other Fluids.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN APPARATUS FOR IMPREGNATING WOOD
WITH PRESERVATIVE AND OTHER FLUIDS to be as follows:-
"
This invention relates to apparatus for impregnating wood with liquid, and is
chiefly designed for impregnating freshly felled or dried trunks of any size.
The said apparatus consists of a hollow cap securely fixed to the thicker end of
the trunk, and communicating with a pump by means of which the impregnating
liquid is forced into said cap so that the trunk may be thereby quickly impregnated
or saturated with any suitable preserving or colouring liquid.
The said cap is provided with a sharp cutting rim or edge and has also grooves
turned therein in order to form additional cutting edges. The said cutting edge
is driven into the thicker end of the trunk, thus forming a sufficiently water-tight
joint, and providing a chamber for the reception of the preserving liquid.
The size of the cap varies with the diameters of the trunks to be treated, and its
diameter must be so much smaller than the diameter of the trunk, that there will
be sufficient space for driving the entire rim into the trunk.
The said cap is secured to the trunk in the following manner that is say :-
With short trunks as for instance those designed for railway sleepers or the like
not exceeding 15 feet in length, a slotted bar is put over the cap and another
slotted bar is put over the free end of the trunk, and the two bars are firmly
connected by screw bolts.
When long trunks are to be impregnated the cap is placed upon the front end of
the trunk but is fastened by means of say two slotted projections and cramp irons.

page_text: A chain may be slung around the cramp irons, and for very thick trunks the
number of projections and cramp irons may be suitably increased.
The cap thus secured to the trunk is connected by means of a screw-threaded
nozzle with a reservoir, and the liquid contained in the same under pressure is
allowed to enter the chamber of the cap, the pressure being maintained by means
of a pump until the trunk is thoroughly impregnated or saturated with the said
liquid. The reservoir should be of sufficient capacity to allow of a number of
trunks being treated simultaneously. The cap may be provided with a tap for
drawing off the liquid remaining in the chamber of the cap.

page_text: Preservative and other Fluids.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 apparatus for impregnating wood with preservative and
other fluids, and is chiefly designed for impregnating freshly felled or dried trunks
of any size.
The said apparatus consists essentially of a hollow cap designed to be fixed to
one end of a trunk and communicating with a pump by means of which the the
impregnating liquid is forced into said cap, so that the trunk may be thereby
quickly impregnated or saturated with any suitable preserving or colouring liquid.
In the accompanying drawing
Figure 1 is a perspective view of the said cap in position upon the trunk.
Figure 2 is a vertical section through the same.
Figure 3 is a side view illustrating the method of securing the cap to the trunk.
Figure 4 is a side view and
Figure 5 a front view showing a modification of the invention.
The cap a is provided with a sharp cutting rim or edge and has also grooves b, o
turned therein in order to form additional cutting edges. The said rim having the
cutting edges is driven into the thicker end of the trunk, thus forming a substan-
tially water-tight joint around the cap and providing a chamber d for the reception
of the preserving or other liquid.
The size of the cap a varies with the diameter of the trunks to be treated, and
its diameter must be so much smaller than the diameter of the trunk, that there
will be sufficient space for driving the entire rim into the trunk.
The cap a is secured to the trunk in the following manner that is to say-With
short trunks as for instance those designed for railway sleepers or the like, not
exceeding fifteen feet in length, a slotted bar & Figure 3 is put over the cap a and
another slotted bar a¹ is put over the free end of the trunk, and the two bars are
firmly connected by screw bolta.
When long trunks are to be impregnated, the cap is placed upon the front end of
the trunk, and is fastened by means of slotted arms or projections g Figures 4 and 5
and the cramp irons h. A chain may be passed round the cramp irons, and for very
thick trunks the number of projections 9 and cramp irons h may be greater than
that shown in the drawing.
The cap a secured to the trunk as before described is connected by means of a
screw-threaded nozzle k with a reservoir containing the impregnating liquid which
liquid is allowed to enter the chamber d of the cap under pressure, the pressure
being maintained, by means of a pump, until the trunk is thoroughly impregnated
or saturated with the said liquid.

page_text: The reservoir should be of sufficient capacity to allow of a number of trunks
being treated simultaneously.
The cap a may be provided with a tap o Figure 3 for drawing off the liquid
remaining in the chamber, d.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondent I declare that what I claim is
First In apparatus for impregnating wood with preservative or other fluids, the
cap a provided with a cutting rim, substantially as described.
Second-The devices for holding the cap a in position, consisting of cross
bars 8, 8 held together by screw bolts; or of arms or projections g secured by
cramp irons h.
Third The combination of the cap a with a pump for forcing the impregnating
or other fluid into the pores of the wood.
: