Improvements in Packing for Stuffing Boxes.
Year: 1894

page_text: Date of Application, 13th Sept.. 1894
Complete Specification Left, 13th June, 1895-Accepted, 27th July, 1895
'
Improvements in Packing for Stuffing Boxes.
I ARTHUR GEORGE BROWN of The Globe Engineering Company Limited,
Victoria Buildings, Manchester, in the County of Lancaster, Engineer, do hereby
declare the nature of this invention to be as follows:-
-
The main objects are to provide for stuffing boxes, metallic packing which shall
be readily applied, durable and steam tight with the minimum of friction.
Packing, under my invention is constructed as follows:-
On a bush fitting within the bottom of the stuffing box, is a metallic sleeve faced
with magnolia or similar metal, or if the arrangement is more suitable, a magnolia
facing piece is inserted, upon which rests a metallic sleeve or sleeves of smaller
external diameter than the interior of the stuffing box.
Within the sleeve or sleeves are tapered rings of magnolia and lead; the
magnolia resting against the piston rod and the lead against the inner surface of
the sleeve. When double sleeves are used one sleeve makes joint against the neck
bush, and the other sleeve makes joint at the top against a cover secured to the
stuffing box, and the gland passes through the said cover and presses on the packing
rings by the agency of external springs. Packing rings are made in sections with
overlapping steam tight parallel joints.. The containing sleeve is usually in .one
piece but to suit certain situations is also made in sections held together by inter-
locking joints and clips. When two sleeves are used a spring keeps the said
sleeves in contact with the top and bottom of the stuffing box.
When two sleeves are used, the ends of the stuffing box packing and sleeves are
made with spherical surfaces described from a point within the stuffing box,
preferably the centre thereof.
Dthe 70th dex of Sentember 1894
J. JOHNSON,
Patent Office, 4 Clayton Square, Liverpool, Agent.
Improvements in Packing for Stuffing Boxes.
I ARTHUR GEORGE BROWN of The Globe Engineering Company Limited
Victoria Buildings, Manchester in the County of Lancaster, 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:-
The main objects are to provide for stuffing boxes, metallic packing which shall
be readily applied, durable and steam-tight, with the minimum.of.friction.
Packing under my invention is constructed as follows:-
On a bush fitting within the bottom of the stuffing box is a metallic sleeve faced
with maguolia or similar metal, or if the arrangement is more suitable a magnolia

page_text: facing-piece is inserted upon which rests a metallic sleeve or sleeves of smaller
Within the sleeve or
external diameter than the interior of the stuffing box.
sleeves are tapered rings of magnolia and lead, the magnolia resting against the
piston-rod, and the lead against the inner surface of the sleeve. When double
sleeves are used one sleeve makes joint against the neck bush and the other sleeve
makes joint at the top against a cover secured to the stuffing box. The gland
passes through the said cover and presses on the packing rings by the agency of
external springs. Packing rings are made in sections with overlapping steam-
tight parallel joints. The containing sleeve is usually in one piece but to suit
certain situations is also made in sectious held together by interlocking joiuts and
clips.
When two sleeves are used a spring keeps the said sleeves in contact with the
top and bottom of the stuffing box, and the ends of the stuffing box packing and
sleeves are preferably made with spherical surfaces described from a point within
the stuffing box preferably the centre thereof.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a longitudinal section part being in elevation, and Fig. 2 is a transverse
section part being in elevation, of packing constructed in accordance with my
invention. a is the stuffing box. b is a bush fitting within the said stuffing box.
c is a magnolia facing piece carried by the said bush b. d is a metallic sleeve
resting on the facing piece c, such sleeve being of smaller diameter than the
interior of the stuffing box. Instead of the facing piece c, being carried by the
bush b, the said metallic sleeve d may be faced with magnolia as shown at c¹.
The sleeved is for convenience divided longitudinally and held together by clips d¹.
Within the sleeve d are tapered rings e of magnolia and also tapered rings f of
lead. The magnolia rings e rest against the piston rod whilst the lead rings frest
against the inner surface of the sleeve d. The rings e, are made in six pieces
divided stepwise both horizontally and vertically as shown more particularly in
Fig. 2 so as to form sections having overlapping steam-tight parallel joints. g
the cover of the stuffing box. h gland which is pressed against the packing rings
by means of springs 1. i piston rod.
is
Fig. 3 is a longitudinal section of a modification of packing in which two
sleeves d, d² are used one of which d is pressed against the neck bush b, whilst the
other dis pressed against the stuffing box cover g or bush g³ by the spring j. As
shown at 6 and 9', spherical surfaces described from a centre within the stuffing
box are used to allow of correct adjustment of the packing.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is 1
First. Packing for stuffing boxes constructed substantially as set forth.
Second. Packing consisting of alternate tapered rings of magnolia and lead
within a sleeve substantially as set forth.
Third. Packing consisting of alternate tapered rings of magnolia and lead
within a sleeve in combination with a gland held against the packing rings by
springs.
Fourth. Packing consisting of alternate tapered rings of magnolia and lead
within a double sleeve held in contact with the neck-bush, and the stuffing box
cover by a spring substantially as set forth.
Fifth. Packing consisting of tapered rings of magnolia and lead divided into
sections and arranged alternately in a sleeve or sleeves substantially as set forth.
Sixth. Packing consisting of metallic tapered rings of lead and magnolia fitting
within a sleeve faced with magnolia, or resting against a magnolia bush substantially
as set forth.

page_text: Seventh. Packing constructed substantially as set forth fitting within a
spherically ended stuffing box.
Duted the 10th 1...
100-
J. JOHNSON,
4 Clayton Square, Liverpool, Agent.