AN IMPROVED APPARATUS COMBINED WITH A STEAM CYLINDER FOR WORKING UP AND TORREFYING BITUMINOUS AND OTHER SUBSTANCES
Year: 1877

page_text: LETTERS PATENT to Paul Crochet, of Paris, Boulevard Magenta, No. 49,
Gentleman, for the Invention of "AN IMPROVED APPARATUS COMBINED
WITH A STEAM CYLINDER FOR WORKING UP AND TORREFYING BITUMINOUS
AND OTHER SUBSTANCES."
Sealed the 20th July 1877, and dated the 17th February 1877.
PROVISIONAL SPECIFICATION left by the said Paul Crochet at the Office of
the Commissioners of Patents on the 17th February 1877.
PAUL CROCHET, of Paris, Boulevard Magenta, No. 49, Gentleman. "AN IMPROVED
APPARATUS COMBINED WITH A STEAM CYLINDER FOR WORKING UP AND TORRE-
FYING BITUMINOUS AND OTHER SUBSTANCES."
My Invention relates to apparatus for working up and heating or melting
asphalte or other bituminous matters and the like, wherein such bituminous matters
are contained in a vessel or cauldron, in which are revolving or reciprocating stirrers,
and which is heated by a fire and flue wholly or partially surrounding it and leading
to a chimney.
My improvements have for their object to utilise the heat of the fire employed
for the above purpose for producing the requisite motive power for actuating the
revolving or reciprocating stirrers. For this purpose I fix round the lower end of
the chimney a closed receptacle partially filled with water, from the lower end of
which one or more pipes descend through the flue and into the fire box of the
apparatus, so that these pipes being filled with water from the receptacle steam will
be generated therein, and will rise into the upper part of the receptacle which acts
as a steam chamber, whence the steam is led through a pipe, provided with a stop
valve, to the slide valve of a small steam cylinder fixed on the casing of the
apparatus. The piston rod of the steam cylinder either imparts motion to a small
crank shaft that is geared to the shaft of the revolving stirrer; or if the stirrer_only
requires reciprocating motion, the piston rod may be connected to an arm on the
rocking shaft carrying the stirrers.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Paul Crochet in the Great Seal Patent Office on the 11th August
1877.
PAUL CROCHET, of Paris, Boulevard Magenta, No. 49, Gentleman. "AN IMPROVED
APPARATUS COMBINED WITH A STEAM CYLINDER FOR WORKING UP AND TORRE-
FYING BITUMINOUS AND OTHER SUBSTANCES."
My Invention relates to apparatus for working up and heating or melting
asphalte or other bituminous matters and the like, wherein such bituminous matters
are contained in a vessel or cauldron, in which are revolving or reciprocating
stirrers, and which is heated by a fire and flue wholly or partially surrounding it
and leading to a chimney.
My improvements have for their object to utilise the heat of the fire employed
for the above purpose for producing the requisite motive power for actuating the
revolving or reciprocating stirrers. For this purpose I fix round the lower end of
the chimney a closed receptacle partially filled with water, from the lower end of
which one or more pipes descend through the flue and into the fire box of the
apparatus, so that these pipes being filled with water from the receptacle, steam
will be generated therein and will rise into the upper part of the receptacle, which
acts as a steam chamber, whence the steam is led through a pipe provided with a
stop valve to the slide valve of a small steam cylinder fixed on the casing of the
apparatus. The piston rod of the steam cylinder either imparts motion to a small
crank shaft that is geared to the shaft of the revolving stirrer, or if the stirrer only
'requires reciprocating motion, the piston rod may be connected to an arm on the
rocking shaft carrying the stirrers.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 shews a cross section of my before described improved apparatus; and.
Fig. 2 shews a side view.
Within the usual fire chamber A are arranged horizontal tubes a, a, serving as
steam generators, and connected to vertical tubes a¹, a¹, communicating with a water
reservoir b surrounding the lower end of the chimney d. The steam generated
rises into the upper part of the chamber b, from which, as required, it is conducted
'to the cylinder c of the engine by opening the cock f on the pipe f¹. By this
means the stirrers inside the cauldron B are actuated by the agency of the steam
generated in the tubes a, a¹, acting on the steam engine c which drives the stirrers
through the shaft g provided with a fly wheel, and connected by gearing to the
shaft of the stirrers. Any greater number of generating tubes a may be employed,
and the engine c may be arranged either horizontally, vertically, or inclined. The
apparatus is mounted on wheels in the ordinary manner.
Having thus described the nature of my Invention, and in what manner the
same may be performed, I claim the use of apparatus for working up and heating
or melting bituminous or other substances wherein a steam generator heated by the
fire employed for heating the said substances supplies the necessary steam for
working an engine that drives the stirring apparatus, substantially as herein
described.
In witness whereof, I, the said Paul Crochet, have hereunto set my hand and
seal, this Twenty-sixth day of July, in the year of our Lord One
Witness,
JULES ARMENGAUD,
Of Paris, Boulevard de Strasbourg, 23,
Civil Engineer.
PAUL CROCHET. (L.S.)