IMPROVEMENTS IN THE BEARINGS, JOURNALS, AXLE BOXES, OR GLANDS FOR MACHINERY, RAILWAY CARRIAGES, AND OTHER VEHICLES.” PROAL SPFICATION
Year: 1877

page_text: LETTERS PATENT to Henry Edward Curtis, of Eighty-four, Evelyn Street,
Kirkdale, near Liverpool, for the Invention of "IMPROVEMENTS IN THE
BEARINGS, JOURNALS, AXLE BOXES, OR GLANDS FOR MACHINERY, RAILWAY
CARRIAGES, AND OTHER VEHICLES.”
PROVISIONAL SPECIFICATION left by the said Henry Edward Curtis
at the Office of the Commissioners of Patents on the 27th November
1877.
"
HENRY EDWARD CURTIS, of Eighty-four, Evelyn Street, Kirkdale, near Liver-
pool. IMPROVEMENTS IN THE BEARINGS, JOURNALS, AXLE BOXES, OR GLANDS
FOR MACHINERY, RAILWAY CARRIAGES, AND OTHER VEHICLES."
Instead of using brass or other metals for bearings, journals, axle boxes, or glands,
I will use a composition made of sand, quicklime, dry sulphate of soda, charcoal, and
arsenious acid. All these ingrediences are sinelted in a clay pot, and while it is in
a liquid state it is put into cast-iron moulds the shape they are required to fit on the
axles they may be made for.
I find that the composition when finished to the shape required is of so hard and
smooth a nature that it cannot cut the iron axle that would revolve in it, and
through its hardness no axle can cut the composition.
I find also that friction has so little effect that oil which is used on the present
bearings can almost be dispensed with.
The price for making this composition is much cheaper than metals.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Edward Curtis in the Great Seal Patent Office on the 24th
May 1878.
HENRY EDWARD CURTIS, of Eighty-four, Evelyn Street, Kirkdale, near Liver-
pool. " IMPROVEMENTS IN THE BEARINGS, JOURNALS, AXLE BOXES, OR GLANDS
FOR MACHINERY, RAILWAY CARRIAGES, AND OTHER VEHICLES."
Instead of using brass or other metals for bearings, journals, axle boxes, or glands,
I use a composition made of sand, quicklime, dry sulphate of soda, charcoal, and
arsenious acid. All these ingredients are smelted in a clay pot, and while in a liquid
state it is put into cast-iron moulds the shape they are required to fit on the axles,
or other parts of machinery they may be made for.
I find that the composition, when finished, is of so hard and smooth a nature that
it cannot cut the iron axle that would revolve in it, and through its hardness no
axle can cut the composition.
I find also that friction has so little effect that oil which is used on the present
bearings can almost be dispensed with.
The price for making this composition is much cheaper than metals.
Having now described the nature of my Invention, and the method I employ to
carry the same into effect, I wish it to be understood that what I claim and wish to
secure by the above in part recited Letters Patent is, the method of making the
bearings, journals, axle boxes, or glands for machinery, for railway carriages and
other vehicles, in the way and by the composition set forth.
In witness whereof, I, the said Henry Edward Curtis, have hereunto set
my hand and seal, this 21st day of May, in the year of our Lord 1878.
1, ·ITDHTR מיזם IIINDI