IMPROVEMENTS IN METALLIC PACKINGS FOR PISTON RODS AND OTHER PURPOSES
Year: 1866

page_text: LETTERS PATENT to John Ogden, of Ashton-under-Lyne, in the County
of Lancaster, Publican, for the Invention of "IMPROVEMENTS IN METALLIC
PACKINGS FOR PISTON RODS AND OTHER PURPOSES."-A communication from
hood he Ralph Ogden of Tudella. in the Kingdom of Spain.
PROVISIONAL SPECIFICATION left by the said John Ogden at the
1.. Office of the Commissioners of Patents, with his Petition; on the
24th October 1866
:
I, JOHN OGDEN, of Ashton-under-Lyne, in the County of Lancaster,
Publican, do hereby declare the nature of the said Invention for "IMPROVE-.
MENTS IN METALLIC PACKINGS FOR PISTON RODS AND OTHER PURPOSES," being a
communication to me from abroad by Ralph Ogden, of Tudella, in the.
Kingdom of Spain, to be as follows:
This Invention consists in cutting a screw thread in the bush through,
which the piston rod or other rod works, and in this screw thread is placed a
coil, of square brass or other suitable metal wire forming the packing, the
interior of the wire coil fits the exterior of the rod, and one end of the wire,
coil is secured to the bush, while the other end fits in a nut screwed into the
top of the bush. When the packing -requires to be tightened the nut is
-turned-partly round, and as the end of the coil is fast in the nut it is evident

page_text: that the turning of the nut causes the coil of wire to close round the rod
working within it. The nut when turned partly round is held by a stud
fitting in holes in the nut, or by a ratchet wheel and catch or other
equivalents.
When these improved packings are applied to pistons one end of the coil 5
must be connected to the piston lid, which being turned round in the proper
direction will expand the coil and cause it to fill the cylinder in which the
piston works.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Ogden in the Great Seal Patent Office on the 17th
April 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
OGDEN; of Ashton-under-Lyne, in the County of Lancaster, Publican, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of October, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John Ogden, Her special license that I, the said John Ogden, my executors,
administrators, and assigns, or such others as I, the said John Ogden, my
executors, administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term. therein
expressed, should and lawfully might make, use, exercise, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN METALLIC PACKINGS FOR
PISTON RODS AND OTHER PURPOSES," being a communication to me from abroad
by Ralph Ogden, of Tudella, in the Kingdom of Spain, upon the condition
(amongst others) that I, the said John Ogden, my executors or adminis:
trators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said John Ogden, do hereby declare the

page_text: formed, to be particularly described' and ascertained in and by the following
statement (that is to say):-
This Invention consists in cutting a screw thread in the bush through
which the piston rod or other rod works, and in this screw thread is placed
a coil of brass or other suitable metal wire forming the packing, the
interior of the wire coil fits the exterior of the rod, and one end of the wire
coil is secured to the bush, while the other end fits in a nut connected to the
bush. When the packing requires to be tightened the nut is turned partly
round, and as the end of the coil is fast in the nut it is evident that the
turning of the nut causes the coil of wire to close round the rod working
within it. The nut when turned partly round is held by a stud fitting in
boles in the nut, or by a ratchet wheel and catch or other equivalents.
And in order that this Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying Sheet of
Drawings, reference being had to the figures and letters marked thereon.
Figure 1 is a longitudinal section and Figure 2 a front elevation of a
stuffing box suitable for a horizontal or other steam engine.
a is the bush of the stuffing box, in which is cut a square screw thread ;
6 is the piston rod, and c is a coil of square, round, or other shaped steel or
other metal wire fitting in the thread of the bush, and forming the metallic
packing of the piston rod, one end of the wire is fixed in a hole in the bush
at d, and the other end fits in a recess in the nut e, fitting on the piston rod;
the nut is cast with the ratchet wheelf which fits in a recess in the end of
the bush a, and it is held in its place by the lid g which is screwed to the
flange of the bush. When it is requisite to tighten the packing the nut ⚫ is
turned partly round in the direction of the arrow by applying a screw key to
the six-sided end of the nut, and as one end of the coil of wire c is fixed to
the bush a and the other end is moved by the nut, it is evident that by
turning the nut the coil of wire forming the packing is tightened on the
piston rod, the nut is held by the retaining catch h, taking into the teeth of
the ratchet wheel f; and the catch his acted upon by the spring i. The coil
of wire may extend from one end of the brush to the other, or only partly
through the bush as shewn in Figure 1, the remainder of the bush being
provided with three or other convenient number of split rings J to assist the
coil c. The lubricating material is poured into the receptacle k in which is a
pad of woollen yarn or other porous substance, the end of which passes into
the hole to guide the lubricating material to the piston or other rod.
Having thus described the Invention as communicated to me by the within-
named Ralph Ogden, I declare that I claim the use of a coil of wire as a

page_text: metallic packing for piston rods and other purposes as described, and the
mode of tightening up the same.
In witness whereof, I, the said John. Ogden, have hereto set my
hand and seal, this Sixteenth day of April, One thousand eight
hundred and sixty-seven..