IMPROVEMENTS IN PACKING RINGS FOR STEAM ENGINE PISTON RODS, STUFFING BOXES, PUMPS, AND OTHER SIMILAR ARTICLES
Year: 1871

page_text: LETTERS PATENT to John Fletcher, of No. 6, Bridgewater Street,
Broughton Road, Salford, in the County of Lancaster, Engineer
and Packing Manufacturer, for the Invention of "IMPROVEMENTS
IN PACKING RINGS FOR STEAM ENGINE PISTON RODS, STUFFING BOXES, PUMPS,
AND OTHER SIMILAR ARTICLES."
Sealed the 8th March 1872, and dated the 9th September 1871.
PROVISIONAL SPECIFICATION left by the said John Fletcher at the
Office of the Commissioners of Patents, with his Petition, on the
9th September 1871..
I, JOHN FLETCHER, of No. 6, Bridgewater Street, Broughton Road,
Salford, in the County of Lancaster, Engineer and Packing Manu- .
facturer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN PACKING RINGS FOR STEAM ENGINE PISTON RODS, STUFFING
BOXES, PUMPS, AND OTHER SIMILAR ARTICLES," (to be as follows):
My Invention relates to the mode of manufacturing the packing rings
known as "metallic wire gauze packing rings," which metallic packing

page_text: rings are used for packing the pistons and stuffing boxes of steam
engines, the buckets of air and water pumps, and for other similar
purposes.
In carrying out my Invention instead of putting the wire gauze
metallic lining (when folded and flattened) half way down the internal
surface of the ring and fastening only on one side of the ring with one
set or row of tongues of gauze wire, I put the gauze wire all through the
whole depth of the ring and fasten the gauze wire into the ring as it is
being made with a double set of tongues of wire gauze, that is, two or
more sets or rows on each side of the packing ring, which tongues of
wire gauze are fastened into the cotton cloth backing or any other
suitable material, such as flax cloth or flax and cotton webbing in
various widths as the ring is being manufactured. After having rolled up
number of folds of the metallic guaze wire and cotton cloth to make
the packing ring to any size required for the packing, and secured it well.
in with the two rows of tongues, I then stitch the ring quite through and
all round with copper or any other sort of metal wire to prevent the
gauze from drawing, thus well securing the packing ring in one compact
and secure ring.
any
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John. Fletcher in the Great Seal Patent Office
on the 9th March 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
FLETCHER, of No. 6, Bridgewater Street, Broughton Road, Salford, in
the County of Lancaster, Engineer and Packing Manufacturer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of September, in the year.
of our Lord One thousand eight. hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Fletcher, Her special licence that
I, the said John Fletcher, my executors, administrators, and assigns,
or such others as I, the said John Fletcher, my executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein

page_text: Having now described the nature and particulars of my said Invention
and the manner in which the same is to be performed, I desire it to be
understood that I do not confine myself to the precise forms or modes of
manufacture as herein described, but what I claim is,―
First. The manufacture and use of an improved wire gauze packing
ring with the wire gauze put through the whole depth of the packing,
and any number of folds of metallic gauze wire flattened and rolled up
at the back of the ring, and well secured on both sides with one, two, or
more rows of tongues or straps of wire gauze fastened in with the folds
of banding or webbing rolled up in making the packing ring.
And, secondly. The stitching of the ring all round with copper wire or
any sort of metal wire to prevent the gauze from drawing, thus securing
the packing in one compact and firm ring.
In witness whereof, I, the said John Fletcher, have hercunto set
my hand and seal, this Sixth day of March, in the year of our
Lord One thousand eight hundred and seventy-two.
Signed, sealed, and delivered by the
within-named John Fletcher in
the presence of
G. SEPTIMUS HUGHES,
Patent Agent,
Manchester.
JOHN FLETCHER. (L.S.)