IMPROVED APPARATUS FOR SIFTING CINDERS AND OTHER SIMILAR KINDS OF MATERIAL THAT MAY REQUIRE SIFTING
Year: 1872

page_text: LETTERS PATENT to Edward Ludlam, of Netherbury, in the County
of Dorset, Schoolmaster, for the Invention of "IMPROVED APPARATUS
FOR SIFTING CINDERS AND OTHER SIMILAR KINDS OF MATERIAL THAT MAY
REQUIRE SIFTING.”
Sealed the 18th May 1873, and dated the 23rd November 1872.
PROVISIONAL SPECIFICATION left by the said Edward Ludlam at the
Office of the Commissioners of Patents, with his Petition, on the
23rd November 1872.
I, EDWARD LUDLAM, of Netherbury, in the County of Dorset, School-
master, do hereby declare the nature of the said Invention for "IMPROVED
APPARATUS FOR SIFTING CINDERS AND OTHER SIMILAR KINDS OF MATERIAL THAT
MAY REQUIRE SIFTING," to be as follows:-
My cinder sifter or riddle consists of an outer bin or case having three
divisions. The upper division being the whole length and breadth of the
bin in which is placed the sifter; at each side of the sifter an iron pivot
is fixed, and these pivots rest on the framework of the bin. Attached to
and forming part of one of the pivots is a handle or lever coming outside

page_text: the bin, this handle or lever being moved up and down gives a rocking
motion to the sifter causing a separation of the ashes and cinders. The
sifter is made partly of wood and partly of sheet iron and zinc; it has
two bottoms about an inch apart; the upper bottom having a series of
holes or meshes through which the ashes fall into the lower bottom. This
bottom has an opening at one end to allow the ashes to escape into the
bin below. The upper bottom can be either nailed to the sifter or
fastened to a frame of wood or iron made to slide into the sifter, by
which the sizes of the holes or meshes may be varied. The cinders
when sifted being retained in the upper bottom are removed from the
same by a slide at the opposite end of the sifter to which the opening for
the ashes to fall is placed. The slide is lifted up by two arms fastened
to a roller having iron pivots at each end and fixed inside the bin; one
of these pivots is so made as to form a handle or lever outside the bin,
by which the arms are moved up and down. One of the lower divisions
of the bin beneath the sifter forms a receptacle for the ashes, and the
other for the cinders when sifted. The ashes and cinders are taken
away by means of moveable slides fixed to each of the lower divisions of
the bin, also by a box or boxes fitted into the same. On the top of the
bin is a cover having an opening with slide attached, through which the
materials to be sifted are emptied into the sifter, it being held hori-
zontally by a catch of wood or iron fixed on the outside of the bin and
holding the handle or lever of the sifter firmly until removed; the same
catch is also so fixed that it holds the sifter when necessary in a slanting
position to allow the cinders, when the slide attached to the sifter is
lifted up, to fall into their proper division into the bin below.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Ludlam in the Great Seal Patent Office on
the 23rd May 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD 30
LUDLAN, of Netherbury, in the County of Dorset, Schoolmaster of the
Endowed Grammer School of Netherbury, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the 23rd Twenty-third day of November, in the
year of our Lord One thousand eight hundred and seventy-two, 35

page_text: in the thirty-sixth year of Her reign, did, for Herself, Her heirs
and successors, give and grant unto me, the said Edward Ludlam,
Her special licence that I, the said Edward Ludlam, my executors,
administrators, and assigns, or such others as I, the said Edward
Ludlam, 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 "SIFTING CINDER AND OTHER SIMILAR KINDS OF MATERIAL REQUIRING SIFTING,
SUCH AS EARTH, Sand, Line, &c.,” upon the condition (amongst others) that
I, the said Edward Ludlam, 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 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 I, the said Edward Ludlam, 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.
My cinder riddle consists of an outer bin or case made of wood,
having three divisions. The upper division being the whole length and
breadth of the bin in which is placed the sifter; at each side of the
sifter an iron pivot is fixed, and these pivots moving on bearings rest on
the framework of the bin. Attached to one of the pivots which comes
outside the bin, is a handle or lever either moveable or fixed; this handle
or lever being moved up and down gives a rocking motion to the sifter,
causing a separation of the ashes and cinders. The sifter is made partly
of wood and partly of sheet iron and zinc, and has two bottoms about an
inch apart, the upper bottom having a series of holes or meshes through
which the ashes fall into the lower bottom. This bottom has an opening
at one end to allow the ashes to escape into the bin or drawer below.
The upper bottom can be either nailed to the sifter, or fastened to a
frame of wood or iron made to slide into the sifter, by which the sizes
of the holes or meshes may be varied. The cinders when sifted being
retained in the upper bottom are removed from the same by a slide

page_text: at the opposite end of the sifter to which the opening for the ashes to fall
is placed. The slide is lifted up by two arms fastened to a roller, having
iron pivots at each end fixed by bearings to the bin. Outside the bin
and attached to one of these pivots is a handle either moveable or fixed
by which the arms are moved up and down. One of the lower divisions 6
of the bin beneath the sifter forms a receptable for the cinders when
sifted, and the other forms one for the ashes. The ashes and cinders are
taken away by means of moveable slides fixed to each of the lower
divisions of the bin, or by boxes fitted into the same. On the top of the
bin is a cover having an opening with slide attached, through which the 1
materials to be sifted are emptied into the sifter, it being held
horizontally by a catch of wood or iron fixed on the outside of the bin,
and holding the handle or lever of the sifter firmly until removed. The
same catch is also so fixed that it holds the sifter when necessary in a
slanting position, to allow the cinders, when the slide attached to the 1
sifter is lifted, to fall into their proper division or box into the
bin below.
In witness whereof, I, the said Edward Ludlam, have heretofore set
my hand and seal, this Nineteenth day of May One thousand
eight hundred and seventy-three.