Improvements in Packing Boxes for Steam or other Motive Engines.
Year: 1899

page_text: Date of Application, 27th Feb., 1899
Complete Specification Left 31st July 1899-Accepted. 16th Sept.
1899
Improvements in Packing Boxes for Steam or other Motive Engines.
I, FREDERICK BROWN, of "Gogovale" Largs, Ayrshire, Scotland, Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in packing boxes for steam or other
motive engines, and has for its construction a simple form of packing box which
can be easily fitted to new engines or to any existing type of engine. My said
invention consists of two solid brass bushes or rings bored out to the diameter
of rod required and their outside diameters turned somewhat less than the
diameter of the stuffing box chamber they fit into, so that the packing box has
sufficient room to move laterally as the rod inclines to move. The top ring is
turned with a flat face on its top end to suit the flat face of the neck bush, and
the bottom ring is turned with a flat face on its bottom end to suit the flat
face of the ordinary gland, thus forming sliding joints on their several faces top
and bottom. The top ring is turned inside to a cone shape and the bottom ring
is made to fit on the outside of the top ring for part of its length, so that when
the two are in position together, internally they form a space for packing.
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On the outside of the top ring a recess is turned and fitted with 2 rams.
bottom" rings, these press against the walls of the stuffing box chamber and pre-
vent any leakage passing through from the top sliding joint. The packing box
is tightened up by means of the ordinary gland studs and nuts and provision
is made to effect this purpose.
Dated this 21st day of February 1899-
I, FREDERICK BROWN, "Gogovale" Largs, Ayrshire, Scotland, Engineer, 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:
My invention relates to improvements in packing boxes for steam or other
motive engines and has for its object the construction of a simple form of floating
packing box which can easily be fitted to new engines or to any existing type of
engine.
In order that my invention may be clearly rendered reference may be had
to the accompanying sheet of drawings.

page_text: In constructing a packing box according to my invention I employ two solid
brass or other suitable metal bushes T T, B B, these are firstly bored out to
the size of the required rods R R. Their outside diameters are turned somewhat
less than the size of the stuffing box L L, they fit into, so that the packing
box "floats" or has sufficient room to move laterally as the rod R R, inclines
to move when working. The top bush T T, externally is also turned down to a
lesser size for part of its length and the inside of the bottom bush B B, is
machined to fit over this reduced part. Again the top bush T T, is bored out
inside for nearly the whole of its length to a cone shape, so that when the two
bushes T T, B B, are in position together, that is to say the bottom bush B B,
fitting on the outside of the top bush T T, their several interior areas form a
space for the packing. The top and bottom faces of the packing box T T, BB,
are turned perfectly flat as also are the several faces of the neck bush N N,
and the end face of the ordinary gland CC, so that these contiguous faces form
sliding joints S S, for the packing box T T, B 13, to work against. A groove
is turned on the outside of the top bush TT, and filled with a spring ring A A,
which presses against the walls of the stuffing box L L, this is to assist in
preventing any leakage from the top sliding joint. The space D']) between
the-openings-of-the-top and bottom bushes is left so as to allow for "draw" of
the packing when being tightened up, which tightening-is-accomplished-by-means-
of the gland studs and nuts in the ordinary-manner.
The action of the packing box-is-as follows::-
Being from its construction a "Hoating" packing box sufficient pressure is exerted
by means of the ordinary gland-studs-and-nuts-to-keep_the_several faces of the
sliding joints, top and bottom, together so as to prevent leakage thereby. This
pressure also acts on the packing in the packing box, pressing it against the
rod and preventing leakage down the rod, and as the packing box is free to
move in the stuffing box laterally, the sliding joints as arranged and described
come into operation.
I do not comprise in my invention any form of description of packing they
may or can be used in connection with my packing box.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
In a packing box for steam or other motive engines the construction of parts
forming a floating packing box, the end faces thereof forming sliding joints,
substantially as herein described and shown in the appended sheet of drawings.
Dated this 31st day of July 1800
FREDERICK BROWN.