AN IMPROVED PACKING FOR THE STUFFING BOXES OF STEAM CYLINDERS AND FOR OTHER SIMILAR PURPOSES
Year: 1871

page_text: LETTERS PATENT to Samuel Turner, junior, John Turner, and Robert
Turner, all of Rochdale, in the County of Lancaster, for the Inven-
tion of "AN IMPROVED PACKING FOR THE STUFFING BOXES OF STEAM
CYLINDERS AND FOR OTHER SIMILAR PURPOSES."
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Scaled the 22nd August 1871, and dated the 12th June 1871.
PROVISIONAL SPECIFICATION left by the said Samuel Turner, John
Turner, and Robert Turner at the Office of the Commissioners of
Patents, with their Petition, on the 12th June 1871.
We, SAMUEL TURNER, junior, JOHN TURNER, and ROBERT TURNER,
all of Rochdale, in the County of Lancaster, do hereby declare the nature
of the said Invention for "AN IMPROVED PACKING FOR THE STUFFING BOXES
OF STEAM CYLINDERS AND FOR OTHER SIMILAR PURPOSES," to be as follows :-
―:
Our Invention relates to the manufacture of that class of packing
composed of coils or rings of woven material saturated with tallow, oil,
or other similar lubricating matter, and combined with a coil of india-
rubber, and either with or without wire gauze in the inner side next
to the piston or other rod to be packed; and consists in a new method

page_text: of manufacturing such packing whereby it is much more economically
produced than heretofore, and at the same time a facility is afforded for
the introduction and retention therein of mineral lubricating material,
such as soapstone, plumbago, and so forth, either in the form of powder
or mixed into a paste by the addition of oil or tallow.
Hitherto such packings have been made from a kind of tape composed
of jute, hemp, or other suitable fibrous material, such tape being woven
with two selvedges and of the width of the required packing.
We propose to take canvas, cloth, or webbing composed of similar
materials and of the ordinary width, and saturated with oil, tallow, or
other suitable fatty matter, and to cut such cloth up into strips of about
double the width of the packing required, and then to fold in the two
edges of such strips till they meet in the centre or thereabouts, and
thus form a double strip of the width of the packing, having previously
spread upon that side of the woven fabric which is to be folded inwards
a thin layer or coating of mineral lubricating material, such as soapstone,
plumbago, or other suitable and known lubricating material or com-
position, either in the form of a powder or mixed into a paste by the
addition of oil or tallow. The strip thus folded may be folded again
in the same manner if desired, so as to form a strip one-quarter the
width of the original, but we prefer once folding only. We then form
or coil a ring of the web thus folded or doubled, the diameter of the
said ring being about equal to the diameter of the piston or other rod
which the ring is intended to pack. We also propose to insert, if
required, a ring of india-rubber about the centre of the coil to give
greater elasticity to the packing, and also in some cases to combine
with it a lining of wire gauze or perforated metal, as commonly practised
with this class of packing, but to these additions we make no claim.
It will be found that the doubled edges of the strips of cloth will not
only serve the purpose of selvedges and prevent fraying at the edges,
but at the same time it will confine the solid portion of the lubricating
material, and prevent it from falling out.
The cost also of the material woven in the ordinary width and cut
into strips of the width required will be much less than that of the tape
hitherto employed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Turner, John Turner, and Robert Turner
in the Great Seal Patent Office on the 12th December 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, SAMUEL
TURNER, junior, John TuRNER, and ROBERT TURNER, all of Rochdale,
in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of June, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Samuel Turner, junior, John Turner, and
Robert Turner, Her special license that we, the said Samuel Turner,
junior, John Turner, and Robert Turner, our executors, administrators,
and assigns, or such others as we, the said Samuel Turner, junior,
John Turner, and Robert Turner, our 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 "AN IMPROVED PACKING for the StuffiNG
BOXES OF STEAM CYLINDERS AND FOR OTHER SIMILAR PURPOSES," upon the con-
dition (amongst others) that we, the said Samuel Turner, junior, John
Turner, and Robert Turner, our executors or administrators, by an
instrument in writing under our, 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 we, the said Samuel Turner, junior, John
Turner, and Robert Turner, 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 state-
ment and accompanying Drawings (that is to say) :-
Our Invention relates to the manufacture of that class of packing
composed of coils or rings of woven material saturated with tallow,

page_text: oil, or other similar lubricating matter and combined with a coil of
india-rubber and either with or without wire gauze in the inner side
next to the piston or other rod to be packed, and consists in a new
method of manufacturing such packing whereby it is much more
economically produced than heretofore, and at the same time a facility
is afforded for the introduction and retention therein of mineral
lubricating material, such as soapstone, plumbago, and so forth, if
preferred, either in the form of powder or mixed into a paste by the
addition of oil or tallow.
Such being the nature and object of our said Invention for "An
Improved Packing for the Stuffing Boxes of Steam Cylinders and for
other similar Purposes," we will now proceed to describe more in detail
the manner in which the same is to be or may be performed or carried
into practical effect, and in order that the same may be clearly under-
stood we have annexed 'hereunto a Sheet of Drawings illustrative
thereof, and have marked the same with figures and letters of reference
corresponding with those in the following explanation thereof :-
Hitherto such packings have been made from a kind of tape composed
of jute, hemp, or other suitable fibrous material, such tape being woven
with two selvedges and of the width of the required packing.
We propose to take canvas, cloth, or webbing or other similar woven
fabric composed of similar materials and of the ordinary width and
saturate it or not as may be required with oil, tallow, or other suitable
fatty or lubricative matter, and to cut such cloth up into strips of about
double the width of the packing required, as shown at Fig. 1 of the
Drawings hereto annexed, and then to fold in the two edges of such
strips along the dotted lines till they meet in the centre or thereabouts,
and thus form a double strip or kind of flat tube of the width of the
packing, as shown at Fig. 2 and in the cross section at Fig. 3, having
(if preferred) previously spread upon that side of the woven fabric which
is to be folded inwards a thin layer or coating of mineral lubricating
material such as soapstone, plumbago, or other suitable and known
lubricating material or composition either in the form of a powder or
mixed into a paste by the addition of oil or tallow. The strip thus
folded may be folded again in the same manner if desired so as to form
a strip one-quarter the width of the original, but we prefer once folding
only. We then form or coil a ring of the web thus folded or doubled
as seen at Fig. 4, the inside diameter of the said ring being about equal

page_text: to the diameter of the piston or other rod which the ring is intended
to pack: We also propose to insert if required a ring a, a, of india-
rubber about the centre of the coil to give greater clasticity to the
packing, and also in some cases to combine with it a lining of one or
more layers of wire gauze or perforated metal, as commonly practised
with this class of packing, but to these additions we make no claim.
It will be found that the doubled edges of the strips of cloth will not
only serve the purpose of selvedges and prevent fraying at the edges, but
at the same time it will confine the solid portion of the lubricating
material used and prevent it from falling out. The cost also of the
material woven in the ordinary width and cut into strips of the width
required will be much less than that of the tape hitherto employed.
Having now described the nature and object of our said Invention,
together with the manner in which the same is to be or may be
performed or carried into practical effect, we would remark in con-
clusion that we lay no claim to the manufacture of a packing from a
combination of woven fibrous material with any particular kind of
mineral or other lubricating material nor to the introduction therein of
the ring of india-rubber nor the wire gauze or other metal lining, but
what we claim as our Invention is, the manufacture of packing from
strips of woven material cut from the piece and having the edges
folded inwards substantially in the manner and for the purposes hercin-
before particularly set forth.
In witness whereof, wc, the said Samuel Turner, junior, John
Turner, and Robert Turner, have hereunto sct our hands and
scals, this Seventh day of December, in the year of our Lord
One thousand eight hundred and seventy-one.
SAMUEL TURNER, JUNIOR. (L.S.)
JOHN TURNER.
ROBERT TURNER.
(L.S.) ·
(L.S.)