Improvements in the Packing of the Tubes in the Rectifiers of Coffey's Distilling Apparatus.
Year: 1896

page_text: Improvements in the Packing of the Tubes in the Rectifiers of Coffey's
Distilling Apparatus.
I, ROBERT MELVIN MCDOUGALL of 86 Dale Street, Glasgow in the County of
Lanark, North Britain, Coppersmith, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in the packing of the tubes in the
rectifiers of Coffey's distilling apparatus in order to keep the still tight where
the tubes pass through the frames of the rectifier. The present method consists
in packing the tubes with rope yarn and red lead and caulking it in with hand
irons; this does not last long and it is almost impossible to repair or renew this
packing without taking down the apparatus, because the packing cannot be
properly done unless from inside the frames. My invention consists of using
screwed glands by which means the tubes can be readily repacked and made
perfectly tight. In carrying out my invention I solder a piece of tube or a long
ferrule over the still tube, this ferrule being about two inches longer than the
thickness of the front of frames and screwed from end to end on its outside
surface. In making new frames the holes for the tubes would be bored for say
one third of their depth outside and inside to about one inch larger than the
diameter of the still tube, the remaining one third being bored so that the ferrule
which is soldered on to the still tube would only pass by screwing through the
frame. By this means a stuffing box is formed in the inside and outside of the
frame; the packing would then be placed in these stuffing boxes and the glands
screwed up.
As an alternative the frame may be bored say two thirds of their thickness
from the front or outside only for packing and the still tubes screwed into the
smaller diameter of the bore at the inside of the frame, with a back nut and
washer screwed up against the wood to make a tight joint inside. In this case
the packing being done at the outside only. The screwed tube or ferrule which
is soldered on the outside of the still tube may be in two pieces; or the outside
portion of the ferrule may be in one piece with the collar of flange for joining
up bends outside the still and a short piece soldered on for jam nut inside the
frames.

page_text: COMPLETE DIECIFICATION.
Improvements in the Packing of the Tubes in the Rectifiers of Coffey's
Distilling Apparatus.
I, ROBERT MELVIN MCDOUGALL of 86 Dale Street, Glasgow in the County of
Lanark, North Britain, Coppersmith, 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 improvements in the packing of the tubes in the
rectifiers of Coffey's distilling apparatus in order to keep the still tight where
the tubes pass through the frames of the rectifier. The present method consists
in packing the tubes with rope yarn and red lead and caulking it in with hand
irons; this does not last long and it is almost impossible to repair or renew this
packing without taking down the apparatus, because the packing cannot be
properly done unless from inside the frames. My invention consists of using
screwed glands by which means the tubes can be readily repacked and made
perfectly tight. In carrying out my invention I solder a piece of tube or a long
ferrule over the still tube, this ferrule being about two inches longer than the
thickness of the front of frames and screwed on its outside surface. In making
new frames the holes for the tubes would be bored for say one third of their
depth outside and inside to about one inch larger than the diameter of the still
tube, the remaining one third being bored so that the ferrule which is soldered
on to the still tube can be passed, fitting tightly, or be screwed through the frame.
By this means a stuffing box is formed in the inside and outside of the frame;
the packing would then be placed in these stuffing boxes and the glands screwed
up.
But in order that my said invention may be more readily understood and
easily carried into effect, I will proceed to describe the same with reference to
the accompanying drawing in which Fig. 1 is a section and Fig. 2 a front view
of a portion of a frame shewing one method of packing the tubes therein.
Referring to the said drawing, A represents the tube to be packed, upon the
outside of which the ferrule B is soldered or otherwise secured. C is the frame
the holes of which are bored at D & D to a size larger than the diameter of the
tube to be packed. E E are the glands working on the ferrule and adapted
to be screwed up to act upon the packing F. G is a collar or flange for joining
up bends outside the still."
As a modification the frame may be bored say two thirds of their thickness
from the front or outside only for packing and the still tubes screwed into the
smaller diameter of the bore at the inside of the frame, with a back nut and
washer screwed up against the wood to make a tight joint inside. In this case
the packing being done at the outside only. The screwed tube or ferrule which
is soldered on the outside of the still tube may be in two pieces; or the outside
portion of the ferrule may be in one piece with the collar or flange for joining
up bends outside the still and a short piece soldered on for jam nut inside the
frames.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
1. The improved method of packing the tubes in the Rectifiers of Coffey's
Distilling apparatus, substantially as hereinbefore described and shewn in the
accompanying drawin

page_text: 2. In packing the tubes in the Rectifiers of Coffey's Distilling apparatus, pro-
viding the tubes with the screwed ferrule B. and one or more screwed glands E.
arranged and operating in the manner as herein before described and shewn in
the accompanying drawing.
Dated thin 20th dow of T..1.. 1007
JOHNSONS,
115 St. Vincent Street, Glasgow, Petitioner's Agents.