Improvements in the Application of Metallic Packing for Stuffing Boxes.
Year: 1889

page_text: Date of Application, 28th May, 1889
Complete Specification Left, 28th May, 1889-Accepted, 27th July, 1889
TRUVIDIONAL DIVIFICATION.
Improvements in the Application of Metallic Packing for Stuffing
Boxes.
I, EDWARD ADAMS SLADE of 18 Challoner Grove South Shields in the County
of Durham Marine Engineer do hereby declare the nature of this invention to be as
follows:-
This my invention consists in the application of semi-annular conical rings of
inale and female sections, or the application of segments of such rings, in a mauner
that causes them to form a steam-tight circle, or faced joint or steam-tight joint, by
contact or pressure of the faces of inner or intermediate hollow cones, or angular
or rectangular or halves or segments of angular rings; with or against a surface
situated between the said parts and the gland or stuffing box cover, or a surface upon
the gland or stuffing box cover, but without necessitating a steam-tight joint to be
formed by contact of any flat surface, with an outer ring or hoop encircling the
aforesaid inner or intermediate hollow cones or angular or rectangular rings.
The improvement effected by this my application consists in forming a strong
metallic packing in, which the outer rings need not be fitted or attached steam-
tight at the ends, nor need to touch the walls of the stuffing box, but allowing
the said outer rings sufficient bulk of metal for strong couplings or connections at
the ends of their halves or segments.
The steam-tight circle or joint on the flat surface afforded by the inner and inter-
mediate hollow cones, or turns of angular packing, is effected by placing halves or
segments of a hollow cone or halves or segments of an angular or rectangular
ring within halves or segments of a larger hollow cone or angular ring. The
openings between the ends of parts of the lesser ring being covered or overlapped
by the plain surfaces of the larger ring.
An outer ring encircles the said hollow cones. A washer or disc (or halves of a
washer or disc fitted together) is placed in contact with the flat surfaces of the hollow
cones, and thereby all outlet of pressure through the orifice in which the rod or ram
is caused to work, is prevented.
A turn of flexible packing or a steam-tight joint is
escape of pressure between the aforesaid washer and the
stuffing box.
necessary to prevent
walls or sides of the
The accompanying drawing is illustrative of my invention.
A represents half a hollow cone or angular ring, of male section.
a. represents the back or outer surface of similar half a hollow cone.
B. represents half an outer ring of female section.
b. represents back or outer surface of similar half an outer ring.
C. represents an intermediate hollow cone which has to encircle a lesser hollow
cone.
D. represents the lesser hollow cone which has to be encircled by ().
E represents a washer to be placed in contact with the outer or end surfaces of the
inner and intermediate rings of a set of packing that face towards the gland or cover
or end of box.
F represents an explanatory or partly sectional diagram of a set of packing placed
in the stuffing box to which it belongs. G inverted plan of inner rings.
Metallic packing applied in accordance with this my invention possesses the
following advantages.―
Ր
All its necessary filling parts can be machined and thereby a reliable fit insured.
The form of its outer ring allows more strength of metal than in ordinary forms
11
1

page_text: It is applicable as a floating packing without needing to be encased in a box or
cylinder separate from the stuffing box to which it belongs.
It is of very simple construction and may be safely fitted by ordinary workmen.
Dated this 27th day of May 1889.
COMPLETE SPECIFICATION.
Improvements in the Application of Metallic Packing for Stuffing
Boxes.
I, EDWARD ADAMS SLADE of 18 Challoner Grove South Shields in the County of
Durham Marine 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:
This my invention consists in the application of semi-annular conical rings of male
and female sections, or the application of segments of such rings, in a manner that
causes them to form a steam-tight circle, or faced joint or steam-tight joint, by
contact or pressure of the faces of inner or intermediate hollow cones, or angular
or rectangular or halves, or segments of angular rings, with or against a surface
situated between the said parts and the gland or stuffing box cover, or a surface
upon the gland or stuffing box cover, but without necessitating a steam-tight joint to
be formed by contact of any flat surface, with an outer ring or hoop encircling the
aforesaid inner or intermediate hollow cones, or angular or rectangular rings.
The improvements effected by this my application consists in forming a strong
metallic packing in which the outer rings need not be fitted or attached steam-tight
at the ends, nor need to touch the walls of the stuffing box, but allowing the said
outer rings sufficient bulk of metal for strong couplings or connections at the ends of
their halves or segments.
The steam-tight circle or joint on the flat surface afforded by the inner and inter-
mediate hollow cones, or turns of angular packing, is effected by placing halves or
segments of a hollow cone or halves or segments of an angular or rectangular ring,
within halves or segments of a larger hollow cone or angular ring.
The openings between the ends of parts of the lesser ring being covered or overlapped
by the plain surfaces of the larger ring.
An outer ring encircles the said hollow cones. A washer or disc (or halves of a
washer or disc fitted together) is placed in contact with the flat surfaces of the hollow
cones, and thereby all outlet of pressure through the orifice in which the rod or ram
is caused to work, is prevented.
A turn of flexible packing or a steam-tight joint is necessary to prevent escape of
pressure between the aforesaid washer and the walls or sides of the stuffing box.
The drawings lodged with Provisional Specification are illustrative of my
invention.
A represents half a hollow cone or angular ring of male section.
a represents the back or outer surface of similar half a hollow cone.
B represents half an outer ring of female section.
6 represents back or outer surface of similar half an outer ring.
C represents an intermediate hollow cone which has to encircle a lesser hollow
cone.
D represents the lesser hollow cone which has to be encircled by C.
E represents a washer to be placed in contact with the outer or end surfaces of
the inner and intermediate rings of a set of packing that face towards the gland or
cover or end of box. Aforesaid parts appear again in figure
F which represents an explanatory or partly sectional diagram of a set of packing
placed in the stuffing box to which it belongs.
G represents inverted plan of inner rings.
h. and i. represent sections of bevelled washers.

page_text: Metallic packing applied in accordance with this my invention possesses the
following advantages :-
All its necessary fitting parts can be machined and thereby a reliable fit insured.
The form of its outer ring allows more strength of metal than in ordinary forms
of Metallic Packing.
It is applicable as a floating packing without needing to be encased in a box or
cylinder separate from the stuffing box to which it belongs.
It is of very simple construction and may be safely fitted by ordinary workmen.
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. The application of a segregated hollow cone or semi-annular ring so placed
within a larger segregated hollow cone, that the radial surfaces of the larger cone do
cover and overlap the separations in the lesser cone aforesaid.
2. The formation of a steam-tight or water-tight bearing around a rod or ram by
the aforesaid application of segregated hollow cones having their surfaces placed in
contact with a washer or semi-annular disc.
3. The formation of a complete floating packing that does not require to be fitted
with tongue pieces or steam-tight coupling or steam-tight connecting together of
the ends of its parts.
4. The formation of a steam tight metallic packing whose outer turns or rings do
not necessarily touch upon any substance except the rings which they encircle.
5. The formation of a metallic packing having only one outer turn.
6. The abandonment of attached strengthening hoops dove-tails or fitted case or
fitted cylinder for this form of packing.
Dated this 27th
ΟΙ
May 2009.
EDWARD ADAMS SLADE.
The above signature Edward Adams Slade was made in my presence
this 27th day of May 1889,
ROBERT PURVIS,
South Shields, Notary Public.