Improvements in Packing for Stuffing Boxes of Engines, Pressure Motors, and Pumps.
Year: 1888

page_text: PROVISIONAL SPECIFICATION.
Improvements in Packing for Stuffing Boxes of Engines, Pressure
Motors, and Pumps.
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 improvement in packing is applicable to all ordinary modern stuffing
boxes of engines, pressure motors, and pumps.
This my invention consists in, turns or parts of turns, or a ring or part of a ring
of metallic packing to be used with and supported by the use of flexible packing.
The metallic ring I construct .for this form of packing has a slanted surface on one
face or forms part of a cone, and it has a flat surface on its opposite face. A part
of the said metallic ring or turn of packing is made so that it can be moved between
the ends of the other part of the ring, and the end surfaces of each part of the ring
are made so that each end surface forms a parallel to its opposite end surface, thus
it prevents the passage of any vapour, gas or fluid, from its outer surface to its
inner circle in which the rod, pump, plunger, or spindle is moved.
Such metallic rings placed with their flat faces in contact with each other, and
turns of flexible packing placed between the slanted faces of the metallic packing or
between the metallic packing and ends of stuffing boxes, complete the application
of this form of packing. The inixing of white metal that is in common use without
restriction is: suitable for the metallic rings, but variety in adaptation necessitates
variety in compositions.
The drawings herewith illustrate the construction and application of the packing.
A represents the face of a metal ring with a part made moveable between parallel
surfaces.
a represents a moveable part with parallel end surfaces...
B represents an elevation of the ring with its flat face horizontal.
Crepresents the face of part of the ring, the other part being, removed to show

page_text: D represents a section of a stuffing box, containing part of a rod and sections of
packing as when in use.
Packing constructed according to this my invention possesses the following
advantages.
It does not become perfectly rigid against the rod.
Its wear is easily compensated without sending the metal rings to the lathe or
workshop.
The yielding of flexible packing follows up the change of shape in the metal rings
as wear goes on, whilst other packing; made all of metal and having cone within
cone, must lose its bearing as the large part of the one cone finds its way into the
small part of the other, leaving a bearing near the ends of halves or segments, so that
bending or fracture takes place.
Dated this 3rd day of December 1888.
Improvements in Packing for Stuffing Boxes of Engines, Pressure
Motors, and Pumps.
1, 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 improvement in packing is applicable to all ordinary modern stuffing
boxes of Engines pressure motors and pumps. This my invention consists in turns,
or parts of turns, or a ring or part of a ring, of metallic packing to be used with
and supported by the use of flexible packing. The metallic ring I construct for this
form of packing has a slanted surface on the one face, or forms part of a cone, and
it has a flat surface on its opposite face. A part of the said metallic ring or turn
of packing is made so that it can be moved between the ends of the other parts of
the ring, and the end surfaces of each part of the ring are made so that each end
surface forms a parallel to its opposite end surface, thus it prevents the passage of
any vapour, gas, or fluid, from its outer surface to its inner circle in which the rod,
pump, plunger, or spindle is moved. Such metallic rings, placed with their flat
surfaces in. contact with each other, and turns of flexible packing placed between the
slanted faces of the metallic packing, or between the metallic packing and ends of

page_text: stuffing boxes complete the application of this form of packing. The mixing of
white metal that is in common use without restriction is suitable for the metallic
rings, but variety in adaptation necessitates variety in compositions.
The drawings (lodged with provisional specification) illustrate the construction and
application of the packing.
A. represents the face of a metal ring with a part made moveable between parallel
surfaces. a. represents a moveable part with parallel end surfaces. B. represents an
elevation of the ring with its flat face horizontal. C. represents the face of part of
the ring, the other part being removed to shew shape of its ends. D. represents a
section of a stuffing box containing part of a rod and sections of packing as when
in use.
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:
1. The application of moveable parallel parts, fitted to conical or bevelled rings or
turns of metallic packing.
2. The construction and application of rings whose flat surfaces cover the fitting
parts of each other without angular fitting parts, tongue pieces, or joints left open
to allow for wear.
3. The application of rings or turns of packing of aforesaid form and construction,
with flexible packing which is forced away from the rod, and still allows a steamtight
stuffing box and gland.
Dated this 19th day of February 1889
5 Signed by the said Edward Adams 'Slade (who
is well known to me) in my presence
ROBERT PURVIS,
Notary Public,
South Shields.
EDWARD ADAMS SLADE.