Improvements in Fitting Metallic Packing for Steam Engines.
Year: 1899

page_text: Improvements in Fitting Metallic Packing for Steam Engines.
We, WILLIAM WHYTE and JAMES MARTIN ROBSON, both of Lombard Street,
in the City and County of Newcastle-upon-Tyne, Engineers, do hereby declare
the nature of this invention to be as follows:-
The improvements relate to the method of fitting metallic packing in the
stuffing box so as to be kept perfectly steam tight as it wears, to provide for
lubrication and to allow of a certain degree of automatic lateral adjustment.
The packing rings around the rod as also those behind may be of any metal
or alloys of metals and of the usual sections. those next the rod being preferably
cut radially and are arranged in a cylindrical case, which will preferably be
of brass, slightly smaller in diameter than the inside of the stuffing box, and
flush with the spigot" thereon, the upper end forming the "neck-ring" and
extending outward to receive the packing gland. At an intermediate point the
case has upon it a projecting flange, the lower surface of which bears upon a
series of coiled springs inserted in cavities in a ring bolted to the stuffing box,
a circular cavity in which contains one or more faced sliding rings, also prefer-
ably of brass. The surfaces of these rings are faced, that next the projecting
flange being flat on lower surface but slightly convex on upper surface so as
to give rolling adjustment to the packing sidewise and the coiled springs press
the faced upper surface of the projecting ring steam tight. One or more half-
lapped spring packing rings may be inserted in cavities in the upper part of
the casing between it and the stuffing box to prevent steam passing the space
between them and yet allow for the lateral adjustment of the casing and packing
rings. A ring of fibrous packing for lubrication is inserted between the packing
ring and the gland. In a modified form this packing may be inserted in a
supplemental stuffing box adjustable in the main stuffing box and the packing
secured by a separate gland.
The packing can be readily adjusted and set up when under steam, and the
case, packing and gland may be turned round from outside to prevent seizing
or unequal wear.
Datod this 4th day of February 1890
T. J. DANSON, F.C.Inst.P.A.,
Agent for Applicants, Newcastle-upon-Tyne.

page_text: Improvements in Fitting Metallic. Packing for Steam Engines,
We, WILLIAM WHYTE and JAMES MARTIN ROBSON, both of Lombard Street,
in the City and County of Newcastle-upon-Tyne, Engineers, do hereby declare
the nature of this invention, and the manner in which it is to be performed,
to be particularly described and ascertained in and by the following statement:-
The improvements relate to the method of fitting metallic packing in the
stuffing box so as to be kept perfectly steam tight as it wears, to provide for
lubrication, and to allow of a certain degree of automatic lateral adjustment.
The packing rings around the rod, as also those behind, may be of any metal,
or alloys of metals, and of the usual sections, those next the rod being preferably
cut radially, and are arranged in a cylindrical case, which will preferably be
of brass, slightly smaller in diameter than the inside of the stuffing box, and
flush with the spigot" thereon, the upper end forming the "neck-ring" and
extending outward to receive the packing gland. At an intermediate point the
case has upon it a projecting flange, the lower surface of which bears upon a
series of coiled springs inserted in cavities in a ring bolted to the stuffing box,
a circular cavity in which contains one or more faced sliding rings, also prefer-
ably of brass. The surfaces of these rings are faced, that next the projecting
fange being flat on lower surface but slightly convex on upper surface, so as
to give rolling adjustment to the packing sidewise and the coiled springs press
the faced upper surface of the projecting ring steam tight. One or more half-
lapped spring packing rings may be inserted in cavities in the upper part of
the casing between it and the stuffing box to prevent steam passing the space
between them and yet allow for the lateral adjustment of the casing and packing
rings. A ring of fibrous packing for lubrication is inserted between the packing
and the gland. In a modified form this packing may be inserted in a
supplemental stuffing box adjustable in the main stuffing box with the packing
secured by a separate gland.
The packing can be readily adjusted and set up when under steam, and the
case, packing and gland may be turned round from outside to prevent seizing
or unequal wear.
DESCRIPTION OF DRAWINGS.
On the accompanying sheet of drawings we illustrate our invention as we
propose to carry it into practical application in such forms as we have found it
to satisfactorily answer existing requirements with marine engines working
with high pressure steam, but it will be understood that various modifications
may be adopted without deviation from the principle and operation as described
in our Provisional Specification, since filing which we have made several trials
of the packing in various forms.
Fig. 1 shews a complete vertical section of a stuffing box of an inverted marine
engine, the right hand half shewing one mode of application, as indicated by
our Provisional Specification, and the left hand half as we now, as the result of
experiments, propose to modify the details.
Fig. 2 shew's a half section in plan through the line a- on Fig. 1, Fig. 2
a half section through the line a¹¹, and Fig. 3 a section through the line
on same fig.
A, is the stuffing box with spigot A¹ into the cylinder end, B, is the cylindrical
case which forms the neck ring B¹ at top, containing the packing rings C, which
are compressed by springs D, against the neck ring by the main gland M. Upon
the case B, is a flange B2 upon which bear springs F, inserted in a ring F¹

page_text: between the flange and a cavity A3 formed in the stuffing box A, which cavity
also provides for the reception of the flange B2 and of a sliding or swivelling
ring G, held in free position by a ring H, bolted to the stuffing box. The
flange B2 is convex on its under edge and the ring G, is correspondingly concave
on its upper edge (or vice versa) so as to allow for a certain amount of lateral
adjustment (as in a ball and socket joint) for any deviation from a true line.
J, is a supplementary gland holding soft packing K, in a cavity of the main
gland M, for lubrication, or this packing may be inserted below the metallic
packing rings C, in the casing and compressed by the main gland M, which will
then be independently adjustable, as shewn on right hand of Fig. 1.
The right hand of Fig. 1 shews another method of applying the packing, the
same letters indicating the same or equivalent parts, as on the left hand, and
with spring packing rings L, inserted between the cylindrical case B, and the
stuffing box A (as described in our Provisional Specification) when required.
Here the lateral adjustment is provided by the two convex rings 12 and G, the
equivalents of the convex flange 132 and the concave ring G, and so lettered.
Having now particularly described and ascertained the nature of our said in-
vention, and in what manner the same is to be performed, we declare that what
we claim is:-
The improvements in fitting metallic packing for steam engines comprising,
in combination, a cylindrical case B, which contains the metallic packing C,
set up against the rod by springs D, and having a certain amount of lateral
freedom in the stuffing box A, with an external flange B2 bearing against
springs F, which press its lower convex edge against a concave edge on a ring G,
moving freely in a retaining ring H, so as to allow lateral adjustment of the
cylindrical case; or the alternative equivalent use of two rings B and G, convex
to each other; a supplementary gland J, with soft packing K, or alternatively
said soft packing inserted under the main packing rings C, set up by the main
gland M, and with or without supplementary packing rings L, between the
cylindrical case B, and the stuffing box A substantially as described and shewn.
Dated this 3rd day of November 1899.
T. J. DANSON, F.C.Inst.P.A.,
Agent for Applicants, Newcastle-upon-Tyne.