AN IMPROVED DRYING APPARATUS
Year: 1866

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Mechanical Draughts-
man, for the Invention of "AN IMPROVED DRYING APPARATUS."—A
communication from abroad by Gilbert Daniel Jones, of the City and
State of New York, in the United States of America.
Sealed the 17th May 1867, and dated the 28th December 1866.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton at
the Office of the Commissioners of Patents, with his Petition, on the
28th December 1866.
I, ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane,'
in the County of Middlesex, Mechanical Draughtsman, do hereby declare the
nature of the said Invention for "AN IMPROVED DRYING APPARATUS," to be as
follows:-
This Invention relates to improved apparatus specially designed for drying
earthy materials used in the arts, and which have been ground in water or
rendered plastic or tempered in the same, such, for instance, as whiting or
clay.
Mounted on suitable framing is a hollow cast-iron cylinder or drum having
a smooth periphery, and capable of being internally heated by steam. This
cylinder is covered by a concentric jacket which leaves a segmental space
between it and the periphery of the cylinder; this space communicates by
፡፡

page_text: means of a pipe with a hot-air chest containing a fan or other suitable means
for impelling a current of hot air through the space, and an aperture is made
in the jacket near the end opposite to that where the hot air is admitted for
the escape of air and moisture. A hopper or trough set below the cylinder is
provided to receive the wet or plastic substance to be dried; mounted in this
hopper is a roller which dips into the material to be dried; this roller is
driven by suitable gear, and as it rotates carries up a coating of the plastic
material, which by the aid of a fixed blade or scraper is transferred to the
periphery of the drum or cylinder which has also a slow rotary motion. The
substance thus carried up and deposited upon the drum or cylinder is dried
by being subjected to the hot blast, and when dry it is scraped from the
periphery of the drum or cylinder by means of a fixed knife, and discharged
into any suitable receptacle.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfred Vincent Newton in the Great Seal Patent Office on
the 28th June 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the County
of Middlesex, Mechanical Draughtsman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of December, in the year of our Lord
'One thousand eight hundred and sixty-six, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Alfred Vincent Newton, Her special licence that I, the said Alfred Vincent
Newton, my executors, administrators, and assigns, or such others as I, the
said Alfred Vincent Newton, 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 "An
IMPROVED DRYING APPARATUS," being a communication to me from abroad, upon
the condition (amongst others) that I, the said Alfred Vincent Newton, 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 per-
formed, and cause the same to be filed in the Great Seal Patent Office within

page_text: six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Alfred Vincent Newton, 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 statement, reference being had to the Drawing hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-
This Invention relates to improved apparatus more especially designed for
drying earthy materials used in the arts, and which have been ground in
water or rendered plastic or tempered in the same, such, for instance, as
whiting or clay.
In the accompanying Drawing, Fig. 1 is a side sectional view of tho
improved drying apparatus taken in the line x, x, of Fig. 2, which Figure is
a transverse vertical section of the same taken in the line y, y, of Fig. 1.
Similar letters of reference indicate corresponding parts.
A represents a cast-iron cylinder or drum which is hollow and has a smooth
periphery; this cylinder is hung in a suitable framing B, and its upper part
above the framing B is covered by a jacket C, which may be constructed of
sheet metal, a space a being allowed between the jacket and the periphery of
the cylinder, as shewn in both Figures.
The space a between the jacket C and the periphery of the drum or
cylinder A communicates by means of a pipe D with a hot-air chest containing
a fan or other suitable means for impelling a current of hot air through the
space a, and an aperture or vent 6 is made in the jacket C near the end
opposite to that where the hot air is admitted (see Fig. 1) for the escape of
air and moisture. E represents a hopper or trough, into which the wet or
plastic substance to be dried is thrown; this hopper or trough is placed under-
neath the drum or cylinder a little at one side of its centre, and within the
hopper or trough a roller F is mounted which is partially submerged in the
material to be dried. The roller F is quite near to the periphery of the drum
or cylinder A, and directly over the roller F between it and the drum or
cylinder A there is placed a blade G, which is designed to serve as a trowel
and spread the wet material evenly over the periphery of the drum or
cylinder A as the latter rotates. The direction of rotation of the drum or
cylinder and roller is indicated by the arrows upon them, the roller being
driven from a pulley on one of the journals c of the drum or cylinder A by
means of a cross belt d.
The substance to be dried is carried up from the hopper or trough E to the
periphery of the drum or cylinder A by the roller F, and in passing aroun't

page_text: within the space a it is dried owing to its being subjected to a hot blast
while in the space a. The dried substance is scraped from the periphery of
the drum or cylinder A by means of a knife H arranged in any suitable
manner.
By this simple means substances of the kind specified may be dried in
an expeditious and perfect manner. The drum or cylinder A is heated by
means of steam passing through it, as indicated by the arrows 1, the journals c
of the drum or cylinder being tubular, the steam being admitted into one tube
and discharged through the other. The heated periphery of the drum or
cylinder in connection with the hot blast through the space a causes the wet
substance to be rapidly dried, and without any danger of being overheated and
injured by the process.
Having now set forth the nature of the Invention of an "Improved Drying
Apparatus," as communicated to me from abroad, and explained the manner of
carrying the same into effect, I wish it to be understood that, under the above
in part recited Letters Patent, I claim the drying apparatus constructed and
operating as above described.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto
set my hand and seal, the Twenty-seventh day of June, in the year of
our Lord One thousand eight hundred and sixty-seven.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
A. V. NEWTON. (L.S.)