Improvements
Year: 1889

page_text: Improvements ACS GE
ACRAES
I, HENRY HARRIS 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 parti-
cularly described and ascertained in and by the following statement :-
My invention relates to improvements in stuffing-boxes, and the object of my
invention is to prevent leakage around the stem by an improved construction,
making use of peculiarly shaped sectional rings, forced into contact with the rod
by steam or spring-pressure; and it consists finally in the construction of cortain
details and arrangement of parts, as hereinafter described, reference being had to
the accompanying drawings and the letters of reference marked thereon in which
Figure 1 represents a plan view of said stuffing-box.
Figure 2 is a section of the same.
Figures 3, 4, 5 and 6 are detail views of the sectional packing rings in sections
and plans.
Figure 7 is a section of the packing rings in an ordinary stuffing-box and
enclosed in a casing or shell.
The stuffing-box is represented by G, and consists of the rings I, K, L, and the
sectional packing rings m and n. The rings 1 and K, are turned to fit the rod
of a valve, piston or similar device loosely, and are grooved to snugly fit each
other, so as to form a tight joint, and the packing rings m and n are placed in
them. The ring m is recessed for the reception of the ring n and they are
arranged in such manner, as to break joint. They are pressed against the rod by
steam, which passes through the space o when the engine or pump is running and
while standing still they are forced against the rod by a corrugated or similar
shaped spring and a small spring 9, holds the packing rings together.

page_text: The ring m is of peculiar cross-section as best seen in Figure 3 having on one
side the recess for the reception of the ring and is provided on its rear or
opposite sido with a bevel m; by which it is forced against the rod, when the
steam pressure nets against it, and this prevents any leakage of steam.
In some instances lngs r, shown in Figure 1, are formed on the ring L and
holts passing through holes in them, are directly tapped into stoun chest, cylinder,
or the like and especially in small engines or now ones, this forming a very
simple and efficient stuffing box, easily applied.
If it is desired to utilize the ordinary stuffing-box onso with the usual bolts and
nuts, as is shown in Figure 7 the interior of the shell or body M is bored out,
to admit of the introduction of the rings I, K, Land the packing, and a flange N,
with a projection to enter the bored rocess is employed. This flange may "how-
over be plain and the packing slightly project, so that the flange can bear on it.
It will be readily understood that one or more of the sets of rings may be employed,
as desired, for deeper stuffing-boxes.
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. A stuffing-box consisting of one or more rings, forming a shell, and counter-
hored for the reception of sectional-packing-rings, arranged substantially in the manner
shown, and for the purpose specifiod.
Second. In a stuffing-box having one or more rings, counterbored, and fitting each
other as shown, the sectional packing ring m, having bovelled side, and recessed to
receive the packing ring n, as herein shown and set forth.
Third. The counter-bored rings 1, K, L, forming the shell, in combination with the
sectional packing rings m, having a bevel side on one side, and recessed on the other
side, for the reception of the packing-ring a, and acted on by steam, and the springs p
and in the manner and for the purposo set forth.
Dated this fith day of February 1880