IMPROVEMENTS IN METALLIC PACKING FOR PISTON RODS AND OTHER PURPOSES
Year: 1869

page_text: LETTERS PATENT to William Edward Newton, of the Office for
Patents, 66, Chancery Lane, in the County of Middlesex, Civil
Engineer, for the Invention of "IMPROVEMENTS IN METALLIC PACKING
FOR PISTON RODS AND OTHER PURPOSES."-A. communication from abroad
by Louis Rousseau, of Brussels, in the Kingdom of Belgium,
Engineer, and Charles Gérard, of Lille, in the Empire of France,
Engineer.
Sealed the 7th January 1870, and dated the 8th September 1869.
PROVISIONAL SPECIFICATION left by the said William Edward Newton
at the Office of the Commissioners of Patents, with his Petition,
on the 8th September 1869.
I, WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery
5 Lane, in the County of Middlesex, Civil Engineer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN METALLIC PACKING FOR
PISTON RODS AND OTHER PURPOSES," to be as follows:-
The improved metallic packing which forms the subject of the present
Invention consists mainly of two helical coils of brass or other metal

page_text: placed one within the other, and provided at one portion of their circum-
ference with teeth or projections, which fit into or against corresponding
teeth or projections made in the brass boxes of the stuffing box. These
boxes are capable of being turned round by means of wrenches or levers,
and by so doing will tighten up the helical coils and make them bind
more tightly round the rod so as to form a steam-tight joint. This object
is still further secured by the use of a packing of caoutchouc, which will
prevent steam from passing past the coils. In order to tighten up the
packing one of the coils must be turned to the right and the other to
the left.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Newton in the Great Seal Patent
Office on the 8th March 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of September, in the year of
our Lord One thousand eight hundred and sixty-nine, in the thirty-third
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said William Edward Newton, Her special licence
that I, the said William Edward Newton, my executors, administrators,
and assigns, or such others as I, the said William Edward Newton, 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 "Im-
PROVEMENTS IN METALLIC PACKING FOR PISTON RODS AND OTHER PURPOSES,"
being a communication to me from abroad by Louis Rousseau, of
Brussels, in the Kingdom of Belgium, Engineer, and Charles Gerard, of
Lille, in the Empire of France, Engineer, upon the condition (amongst
others) that I, the said William Edward Newton, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the

page_text: 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 William Edward Newton, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the Drawing here-
unto annexed, and to the letters and figures marked thereon (that is
to say):
The improved metallic packing which forms the subject of the present
Invention consists mainly of two helical coils of brass or other metal
placed one within the other, and provided at one portion of their circum-
ference with teeth or projections, which fit into or against corresponding
teeth or projections made in the brass boxes or collars of the stuffing
box. These boxes or collars are capable of being turned round by means
of wrenches or levers, and by so doing will tighten up the helical coils
and make them bind more tightly round the rod so as to form a steam-.
tight joint. This object is still further secured by the use of a packing.
of caoutchouc, which forms a third coil, and when compressed by the
metallic coils will prevent steam from passing past the coils. In order
to tighten up the packing one of the coils must be turned to the right
and the other to the left.
In the accompanying Drawings, Fig. 1 is a longitudinal section of the
box shewing the whole arrangement mounted upon the rod and enclosed
in the cylinder cover; Fig. 2 is a view of the coil F furnished with any
number of teeth at G and H; Fig. 3 shews a coil I (represented in front
view at Fig. 4) which fills the spaces of the coil F, and makes a joint
with the collars B and D; Fig. 5 is a transverse section of the box in
the line P, Q, of Fig. 1; Fig. 6 is a front view, and Fig. 7 a plan view
of the same.
A is a saddle picce carrying the lubricator for lubricating the rod, it
serves to fix the box to the cover of the cylinder; B is a collar divided
into two parts and carrying a ratchet, which regulates the tension,
and which is provided at C with a certain number of teeth corresponding
to the teeth of the coil F, and serves for tightening up to the left; D is
a collar or sleeve shaft divided into two parts, having a ratchet for
regulating the tension and provided at E with a certain number of teeth

page_text: corresponding with other teeth of the coil F, and serves for tightening
up to the right: F is a coil provided with a number of teeth G and H
(see Fig. 2); I is a coil which fills up the spaces of the coil F, and joins
on to the turned edges of the two sleeves B and D (see Fig. 3); J is an
india-rubber ligature (or portion of a third coil), which completes the
outside closing of the coils F and I inside the sleeves B and D ; L is
the box through which the rod works; M is a pawl taking into the
ratchet of the collar D (see the front view of the box, Fig. 6); N is a
pawl taking into the ratchet. of the collar B (see the front view of the
box Fig. 6); O is the axle, on which turn the two pawls M and N.
Having now described the Invention which has been communicated
to me by my foreign correspondent, and having éxplained the manner of
carrying the same into effect, I claim as the Invention secured to me by
Letters Patent as aforesaid,-
Constructing stuffing boxes for the working rods or shafts of machinery
of a system or combination of two metallic helical coils provided with
any convenient number of teeth or other equivalent device, whereby
they may be turned so as to cause the coils to form a close joint on the
rod to be packed, as herein set forth.
I also claim the combination with the helical coils of the two collars
having independent motion, so that they may be turned round as may
be required to tighten up the coils.
I further claim the use of the india-rubber band or coil, in the
manner and for the purpose set forth.
In witness whereof, I, the said William Edward Newton, have here-
unto set my hand and seal, the Eighth day of March, in the
year of our Lord One thousand eight hundred and seventy.