AN IMPROVED PACKING FOR THE STUFFING BOXES OF STEAM ENGINES AND PUMPS, AND FOR OTHER JOINTS REQUIRING TO BE MADE STEAM, AIR, OR WATER TIGHT
Year: 1876

page_text: LETTERS PATENT to Asplan Beldam, of 123, Fenchurch Street, in the City of
London, in the County of Middlesex, Consulting Engineer and Ship Surveyor,
for the Invention of "AN IMPROVED PACKING FOR THE STUFFING BOXES OF
STEAM ENGINES AND PUMPS, AND FOR OTHER JOINTS REQUIRING TO BE MADE
STEAM, AIR, OR WATER TIGHT."
Soaled the 8th August 1876, and dated the 29th May 1876.
PROVISIONAL SPECIFICATION left by the said Asplan Beldam at the Office
of the Commissioners of Patents on the 29th May 1876.
ASPLAN BELDAM, of 123, Fenchurch Street, in the City of London, in the
County of Middlesex, Consulting Engineer and Ship Surveyor. "AN IMPROVED
PACKING FOR THE STUFFING BOXES OF STEAM ENGINES AND PUMPS, AND FOR
OTHER JOINTS REQUIRING TO BE MADE STEAM, AIR, OR WATER TIGHT."
My Invention relates to an improved packing, which I call a composite packing,
to be used for the stuffing boxes of steam engines and pumps and for other joints
requiring to be made steam, air, or water tight.
The packing consists of a novel combination of canvas, felt, or other fibrous
material, and plected sheets of metal rolled up together in a circular or other suitable
form of any required thickness.
In construction a thin sheet of metal, being white metal or other suitable metal,
is corrugated, folded, or pleeted, and then covered with a suitable lubricating grease,
then a layer of canvas, felt, or other fibrous material, and then a second layer of
grease. The whole is then spirally rolled up in a lateral direction across the corru-
gations or pleets until the packing attains the desired thickness, the outside layer
being canvas, felt, or other fibrous material, and the packing being composed of
alternate layers of canvas, felt, or other fibrous material, lubricating grease, and
pleeted metal.
The fact of having the metal corrugated, folded, or pleeted allows the packing to
be bent into any sized circle without fracture.
It will be evident that the packing can be manufactured of round, square,
triangular, or other section.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Asplan Beldam in the Great Seal Patent Office on the 23rd
November 1876.
ASPLAN BELDAM, of 123, Fenchurch Street, in the City of London, in the
County of Middlesex, Consulting Engineer and Ship Surveyer. "AN IMPROVED
PACKING FOR THE STUFFING BOXES OF STEAM ENGINES AND PUMPS, AND FOR
OTHER JOINTS REQUIRING TO BE MADE STEAM, AIR, OR WATER TIGHT."
My Invention relates to an improved packing, which I call a composite packing,
to be used for the stuffing boxes of steam engines and pumps and for other joints
requiring to be made steam, air, or water tight.
The packing consists of a novel combination of canvas, felt, or other fibrous
material, and pleeted sheets of metal rolled up together in a circular or other suitable
form of any required thickness.
In construction a thin sheet of metal, being white metal, or other suitable
metal, is corrugated, folded, or pleeted, and then covered with a suitable lubricating
grense, then a layer of canvas, felt, or other fibrous material, and then a second
layer of grease. The whole is then spirally rolled up in a lateral direction across
the corrugations or pleets until the packing attains the desired thickness, the
outside layer being canvas, felt, or other fibrous material, and the packing being
composed of alternate layers of canvas, felt, or other fibrous material, lubricating
grease, and pleated metal.
It will be evident that the packing can be manfactured of round, square, triangular,
or other section.
The fact of having the metal corrugated, folded, or pleeted allows the packing to
be bent into any sized circle without fracture.
In order that my Invention may be more clearly understood I have attached a
Sheet of Drawings, which serve to illustrate the principle upon which my improved
packing is manufactured. Like letters on the Drawings denote similar parts
throughout the various views.
Figure 1 is an exaggerated view illustrating the method in which my packing is
manufactured. A is a layer of felt, canvas, or other fibrous material, upon which is
placed B a layer of metal, such as white metal or other suitable metal. It will be
observed that the metal is folded or pleeted, as shown by the lines C. The whole
is interlayered and covered with lubricating grease, and then rolled up spirally in a
lateral direction across the plects, as shown by the arrows F, until the packing
attains the desired thickness, the outside layer being canvas, felt, or other fibrous
material.
Figures 2, 3, 4, 5, 6, and 7 illustrate various sections of packing, the black lines
illustrating the pleeted metal B interlayered with the grease and canvas, felt, or
other fibrous material A.
It will be seen that each layer of metal forms a complete protection to the clastic
web, and prevents wear and depreciation, the result being a metallic packing that
will resist high-pressure steam. Through its elasticity this packing is adapted to
any diameter of gland. It can be bent without fracture, and kept in any
length.
Having now described the nature, object, and purposes of my Invention, and
shown how the same may be carried into operation, what I claim as my Invention
and secured to me by Letters Patent as aforesaid is, an improved packing for the
stuffing boxes of steam engines and pumps and for other joints requiring to be
made steam, air, or water tight, consisting of a layer of plected thin sheet metal,
such as white metal, in combination with a layer of canvas, felt, or other fibrous
material and lubricating grease, the whole spirally rolled up in a lateral direction
across the pleets until the packing attains the desired thickness, substantially in

page_text: the manner as herein-before described, and such as shown in the accompanying
Sheet of Drawings.
In witness whereof, I, the said Asplan Beldan, have hereunto set my hand
and seal, this Twentieth day of October, in the year of our Lord One
thousand eight hundred and seventy-six.
ASPLAN (LS.) BELDAM,