Improvements in Metallic Packing Rings for Glands.
Year: 1894

page_text: Date of Application, 13th Dec., 1894
Complete Specification Left, 13th Sept., 1895-Accepted, 2nd Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Metallic Packing Rings for Glands.
I, CHRISTOPHER GEDDES of 2ª Drury Lane, Water Street, Liverpool in the
County of Lancashire, Engineer do hereby declare the nature of this invention to
be as follows:-
My invention relates to metallic packing rings for stuffing boxes, and has for its
object an improved construction and arrangement of the segments of the rings.
A construction of my improved ring is as follows. The ring is of tapered section
in two or more segments.
When three segments are used each end of one segment is so arranged that the
ends of the other segments can be hinged or jointed to it; the other ends of these
segments are arranged to form an overlap joint which is protected by a shield
preferably secured to one of the segments.
A ring is thus formed in which all the parts are secured to each other. The
ring of the construction described may be opened and closed round the rod and
between each ring there may be one or more rings of fibrous or other packing
and on pressure being applied the fibrous or other packing bears on the inclined
surfaces of the ring tending to close it around the working rod. Each ring is
provided with holes or slots at the periphery for lifting purposes and the rings
may be used alternately with rings of metal, fibrous or other material as may he
desired.
Dated this 8th day of December 1894.
COMPLETE SI BUIFICATION.
Improvements in Metallic Packing Rings for Glands.
I, CHRISTOPHER GEDDES of 2 Drury Lane, Water Street Liverpool in the
County of Lancashire, 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 metallic packing rings for stuffing boxes and has for its
object an improved construction and arrangement of the segments of the rings.
A construction of my improved ring is as follows. The ring is of tapered section
in two or more segments: when three segments are used each end of one segment
is so arranged that the ends of the other segments can be hinged or jointed to it:
the other ends of these segments are arranged to form an overlap joint which is
protected by a shield preferably secured to one of the segments.
In the accompanying drawings:
Figure I shows in plan a construction of my improved ring in which three
segments are used.
Figures II, III & IV are vertical sections through the lines A B, CD, EF,
respectively, in Figure I.
Figure V is a sectional elevation, drawn to a smaller scale than Figure I,
showing the rings in position in a stuffing box alternately arranged with rings of
fibrous or other packing.

page_text: Figure VI. is a similar view to Figure V, one half of the stuffing box only
being shown, the rings in this case being alternately arranged with rings of
metal.
Figure VII is a plan of the opened rings shown in Figare V, the dotted lines
showing the ring closed.
The numbers in all the figures correspond.
The segments 2. 3. 4 forming the ring 1 are hinged or jointed together by the
collars 5 shown in Figure III. The free end 4¹ of the segment 4 overlaps the free
end 21 of the segment
as shown in Figure IV, each segment being provided with
a shield 6, 6¹ which is attached to the segments 2 & 4 respectively, or the shield
may be independent. A ring of the construction described may be opened and
closed round the rod and there may be one or more rings of fibrous or metallic
packing 7 (Figures V and VI) and on pressure being applied the fibrous or other
material bears on the inclined surface of the ring tending to close it round the
working rod.
Each ring is provided with holes 8 or slots 9 at the periphery for lifting purposes
and the rings may be used alternately with rings of metal, fibrous or other material
as may be desired.
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.) A metallic packing ring composed of two or more segments each adjoining
segment being hinged or jointed together and the free ends of the end segments
overlapped and shielded substantially as described and illustrated.
(2.) Metallic packing rings constructed substantially as described and illustrated
with reference to Figures I to VII inclusive.
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