Improvements in Packings for Rotating Spindles.
Year: 1892

page_text: Date of Application, 12th Jan., 1892
Complete Specification Left, 10th Oct., 1992-Accepted. 3rd Dec.. 1892
PROVISIONAL SPECIFICATION.
Improvements in Packings for Rotating Spindles.
I, JOHN BARR, of The Glenfield Company Limited of Kilmarnock, in the
County of Ayr North Britain, Engineer, do hereby declare the nature of this
invention to be as follows that is to say :-
My said invention has for its object to provide a fluid-tight, durable and reliable
packing for rotating spindles, such as extend through casings or partitions on the
opposite sides of which the pressures are different.
In carrying out my invention there is formed on or bolted to the part through
which the spindle extends a disk-like part or disk made with a central hole for the
spindle with an enlarged or recessed part in which there is placed a packing ring
of brass or white metal or other suitable alloy. The packing ring is made with a
flat surface to fit fluid-tight against one side of a collar formed on the spindle, and
with an outer bevilled or stepped surface. A ring of vulcanised rubber is placed
on the outside of the packing ring and an outer disk or cover which is screwed or
bolted on, by being more or less screwed up compresses the rubber ring in the
recessed part containing it and the packing ring so as not only to keep the
packing ring in contact with the spindle collar but also to prevent the passage of
fluid round the packing ring and through the recessed part.
The packing ring and rubber ring may be applied to either side of the spindle
collar; or a packing ring and rubber ring may be applied to each side of the
collar.
Dated the Eleventh day of January 1892.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Packings for Rotating Spindles.
I, JOHN BARR, of The Glenfield Company, Limited, of Kilmarnock, in the
County of Ayr, North Britain, 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, that is to say :-
My said invention has for its object to provide a fluid-tight, durable and reliable
packing for rotating spindles, such as extend through casings or partitions on the
opposite sides of which the pressures are different.
In carrying out my invention there is formed on or bolted to the part through
which the spindle extends a disk-like part or disk made with a central hole for the
spindle with an enlarged or recessed part in which there is placed a packing ring
of brass or white metal or other suitable alloy. The packing ring is made with a
flat surface to fit fluid-tight against one side of a collar formed on the spindle, and
with an outer bevilled or stepped surface on which is placed a ring of vulcanised
rubber or other suitable compressible material which along with the packing ring
is compressed by means of a disk or cover screwed or bolted on either by the same
bolts used to hold the disk or by separate bolts.
The packing ring and rubber ring may be applied to either side of the spindle
collar; or a packing ring and rubber ring may be applied to each side of the
collar.
And in order that my said invention and the manner of performing the same may
be properly understood I hereunto append a sheet of explanatory drawings to be

page_text: hereinafter referred to and showing in vertical section four simple examples of my
In these
improved packing as applied to the spindles of well known sluice valves.
drawings the same reference letters are used to mark the same or like parts
wherever they are repeated.
As shown in Figure, 1, there is attached, to the part, A, of the valve casing
through which the spindle, B, extends, by nuts, C, on bolts, D, a disk-like part or
disk, which, in this example, is made in two pieces, E, F, the piece, E, being made
with a central hole for the spindle, B, a collar, G, on which rests in a recess on the
top surface of the piece, E. The piece, F, of the disk, is made with an enlarged
part in which there is placed a packing ring, H, of brass or white metal or other
suitable alloy. The packing ring, H, is made with a flat surface to fit fluid-tight
against the upper side of the collar, G, formed on the spindle, B, and with an outer
bevilled surface. A ring, J, of vulcanised rubber is placed on the outside of the
packing ring, H, and an outer disk or cover, K, which is attached by nuts, L, on
bolts, D, by being more or less screwed up compresses the rubber ring, J, in the
enlarged part containing it and the packing ring, H, so as not only to keep the
packing ring in contact with the spindle collar, G, but also to prevent the passage
of fluid round the packing ring and through the enlarged part.
In the example shown in Figure, 2, the disk-like part is made in one piece, F,
and the packing ring, H, and rubber ring, J, are placed in a recessed part in the
disk, F, so as to act on the underside of the spindle collar, G.
In Figure, 3, the packing ring, H, is made with its under surface stepped and
the rubber ring, J, is inserted in this stepped part, the parts being otherwise
similar to the example shown in Figure, 2. A tooth, M, on the packing ring, H,
and engaging in a notch in the recessed part of the disk, F, prevents it from turning.
The same or a similar device may be applied in the other examples.
In the example shown in Figure, 4, a packing ring. H, and a rubber ring, J, are
applied to each side of the spindle collar, G, the packing rings being made with
outer bevilled surfaces; and being held along with the rubber rings, J, in a recessed
part in the disk, F.
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:
In packing for rotating spindles the combination and arrangement of a disk-like
part, made with a central hole for the spindle, and with an enlarged or recessed
part in which is, or are, placed a packing ring or rings made with a flat surface o
surfaces to bear against one or both surfaces of a collar on the spindle, and with an
outer bevilled or stepped surface or surfaces having placed thereon a ring or rings
of vulcanised rubber which along with the packing ring or rings are compressed
by means of a disk or cover screwed or bolted on, substantially as hereinbefore
described.
Dated this Eighth day of October 1892.
TTTTATA
EDMUND HUNT,
Applicant's Agent.