IMPROVEMENTS IN PACKING FOR THE STUFFING BOXES OF STEAM ENGINES AND PUMPS, AND FOR ARTED JOINES REQUIRING TO BE MADE STEAM. AIR, OR WATER-TIGHT.
Year: 1874

page_text: LETTERS PATENT to Jesse Kirkman, of Chorley, in the County. of
Lancaster, Coal Agent, for the Invention of "IMPROVEMENTS IN
PACKING FOR THE STUFFING BOXES OF STEAM ENGINES AND PUMPS, AND FOR
ARTED JOINES REQUIRING TO BE MADE STEAM. AIR, OR WATER-TIGHT.
وو
Sealed the 6th November 1874, and dated the 30th May 1874.
PROVISIONAL SPECIFICATION left by the said Jesse Kirkman at the
Office of the Commissioners of Patents, with his Petition, on the
30th May 1874.
I, JESSE KIRKMAN, of Chorley, in the County of Lancaster, Coal
"IM-
Agent, do hereby declare the nature of the said Invention for
PROVEMENTS IN PACKING FOR THE STUFFING BOXES OF STEAM ENGINES AND PUMPS,
AND FOR OTHER JOINTS REQUIRING TO BE MADE STEAM, AIR, OR WATER-TIGHT," to
be as follows:-
My said Invention relates to improved packing which consists of yarn
or strands of fibrous material saturated, impregnated, or covered with a
solution of pure india-rubber or india-rubber compound, preferably that
Price Sd.

page_text: known as outside india-rubber hose pipe varnish, and I may add to this
solution talc, soapstone, or other mineral lubricant.
The saturation, impregnation, or covering of the fibrous material is
most conveniently effected by passing the latter through a bath of the
india-rubber solution or compound with or without the soapstone or
other mineral lubricant.
The yarns or strands of fibrous material either before or after they
have been dried, are twisted, woven, or braided into a rope of any required
thickness, or the rope may be formed by laying together the strands of
packing without any twisting, weaving, or braiding. Then the said rope
by hand or any suitable rubbing apparatus and by the application of a
small quantity of the above compound or solution is so manipulated as
to give it a uniform thickness. Then a covering or envelope of fibrous
material which may or may not be impregnated or saturated with the
aforesaid compound or solution, either with or without the addition of
talc, soapstone, or other mineral lubricant to the solution or compound,
is braided, knitted, woven, or coiled upon the said rope when the same is
composed of strands laid together or twisted, but the braided or woven
rope will not require a covering or envelope. During the braiding,
knitting, weaving, or coiling of this covering upon the twisted rope or
mass of fibrous material, the same may be moistened by the application
of naphtha or some of the aforesaid compound or solution to ensure the
adhesion of the said covering or envelope to the rope or mass of fibrous
material throughout its entire length.
My improved packing, either with or without an india-rubber or
fibrous core or cores, may also be woven or braided without passing it
through the bath, and have the aforesaid compound or solution applied
to the rope in alternate layers or otherwise, either as it is being or after
it has been woven or braided, but in this case the envelope or covering
above described is dispensed with, and the rope may be finished by
applying a small quantity of the compound or solution to the rope,
rubbing it down with the hand or suitable apparatus.
When my improved packing is used for the stuffing box of a steam'
engine piston rod, it is cut into rings of the required size and so placed
in the stuffing box as to form "jump" joints, that is to say, each ring is
pressed into the interior of the stuffing box and so arranged therein
"

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Jesse Kirkman in the Great Seal Patent Office on
the 26th November 1874. :
303 **
send
TO ALL TO WHOM THESE PRESENTS SHALL COME, I. JESSE
KIRKMAN, of Chorley, in the County of Lancaster, Coal Agent, sen
greeting.
jodtie al
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WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of May, in the year, of
our Lord One thousand eight hundred and seventy-four, in the thirty-.
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Jesse Kirkman, Her special licence
that I, the said Jesse Kirkman, my executors, administrators, and
assigns, or such others as I, the said Jesse Kirkman, 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
PACKING FOR (THE Stuffing Boxes OF STEAM ENGINES AND PUMPS, AND FOR OTHER
d oals yM!
JOINTS REQUIRING TO BE MADE STEAM, AIR, OR WATER-TIGHT," upon the con-
dition (amongst others) that I, the said Jesse Kirkman, 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
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the
Office within six calendar months next and immediately
of the said Letters Patent.
gos 201
"
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Great Seal Patent
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date
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page_text: NOW KNOW YE, that I, the said Jesse Kirkman, do hereby declare
the nature of my 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 accompanying Drawing
forming a part of this Specification.
My Invention relates to an improved packing which consists of yarn
or strands of fibrous material saturated, impregnated, or covered with a
solution of pure india-rubber, or an india-rubber compound in solution,
and the said yarn or strands may be twisted, woven, or braided into a
rope of any required thickness and length.
The saturation or impregnation of the said fibrous material is most
conveniently effected by passing the said yarns or strands through a bath.
containing the said solution, and after the said yarns or strands are dry I
twist them into a rope of any desired thickness and length, rubbing, the
rope down occasionally while it is being twisted to take out the
inequalities and make it uniform in thickness, or the yarn or strands
after passing through the bath may be twisted while wet and afterward's
dried. In either case I apply to the yarn or strands forming the rope a
little of the aforesaid pure india-rubber solution, or india-rubber com-
pound in solution, which forms a coating, and then rub the rope well
down with the hand or with any suitable rubbing apparatus to still
further insure it's uniform thickness.
TO-
21
A covering or envelope of fibrous material may then be braided,
knitted, woven, or coiled upon the said rope; the aforesaid coating should
be moistened by the application of naphtha or india-rubber solution,
while the said covering is being braided, knitted, woven, or coiled upon
the rope to ensure the adhesion of the whole or part of the said covering
or envelope to the said rope. This form of my Invention is illustrated
in Figure 1, which shows a portion of the aforesaid rope provided with a
127074
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fibrous covering coiled upon the same.
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161989 m.
I may also braid or weave the yarn or strands of fibrous material
covered or impregnated with the said india-rubber solution, or india-
rubber compound in solution, into a rope of any desired length or
thickness, but with a rope thus formed the covering or envelope above
described is not used, and the rope may be finished with a little of the
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solution or compound if required.
ed s
My improyed packing either with or without a core or. cores of india-
rubber
may also be woven or braided without passing the yarn or strands

page_text: through the bath containing the compound or solution, and have the
aforesaid compound or solution applied to the rope in alternate layers "ör
otherwise as it is being or after it has been woven or braided. In this
case also the aforesaid covering or envelope is dispensed with, and the
rope may be finished by applying a small quantity of the said compound
or solution to the rope, and rubbing it down with the hand or any
suitable rubbing apparatus.
:
Figures 2 and 3 are sectional views illustrating this 'modification of
my Invention; a. is the fibrous portion, and b the-india-rubber 'core 'of
the same; c, c, are cores of fibrous material.
In practising my Invention I have found that in those cases where I
do not use a solution of pure india-rubber'various compounds of india-
rubber in solution may be used, but I prefer to use the 'following
compound, namely: -One pound of india-rubber dissolved in one gallon
of coal tar naphtha, to which I add nine pounds of tale, soapstone, or
other unctuous mineral lubricant, with two and a half ounces of flowers
of sulphur; after mixing these substances well together I grind them in
a suitable apparatus, and if the compound is too strong I reduce it to a
proper consistency by the addition of more naphtha.
When my improved packing is used for the stuffing box of a steam
engine piston rod, it is cut into rings of the required size and so placed
in the stuffing box as to form a close or "jump" joint, and each ring is
pressed into the interior of the stuffing box, and so arranged that the split
or opening of each ring will be over a solid or undivided part of the
adjacent one. When the said packing is applied to the joints of man-
hole lids or covers, and to similar joints, it may be applied by laying it
in a coil between the surfaces of the parts of the joints or in any other
convenient manner.
The said packing may be delivered to the market in its original form
or condition, or it may be flattened before being delivered.
Having thus fully described my said Invention and the manner of
performing the same, I wish it understood that I claim,-
First. A packing composed of yarn or strands of fibrous material
saturated, impregnated, or covered with the above specified compound
or other similar compound of india-rubber, aș herein set forth and for
the purpose specified.

page_text: Second. A packing composed of yarn or strands of twisted fibrous
material saturated, impregnated, or covered with india-rubber, or a com-
of india-rubber, and provided with a fibrous cover or envelope, woven,
braided, or coiled upon the same, as herein set forth and for the purpose
specified.
Third. A packing composed of woven or braided yarn or strands of
fibrous material saturated, impregnated, or covered with india-rubber, or
a compound of india-rubber, and with or without the india-rubber or
other core or cores, as herein set forth and for the purpose specified.
In witness whereof, I, the said Jesse Kirkman, have hereunto
set my hand and seal, this Twenty-third day of November,
in the year of our Lord One thousand eight hundred and seventy-
four.
JESSE KIRKMAN. (L.S.)