AN IMPROVED CINDER SIFTER
Year: 1874

page_text: LETTERS PATENT to Edwin Smith, of Lombard Street, in the City of
London, for the Invention of "AN IMPROVED CINDER SIFTER."
Scaled the 22nd June 1875, and dated the 24th December 1874.
PROVISIONAL SPECIFICATION left by the said Edwin Smith at
the Office of the Commissioners of Patents, with his Petition, on
the 24th December 1874.
I, EDWIN SMITH, of Lombard Street, in the City of London, do hereby
declare the nature of the said Invention for " AN IMPROVED CINDER SIFTER,”
to be as follows:-
This Invention consists in constructing cinder sifters in such a way
that the ashes shall be separated from the cinders by means of a rotary
motion.
The following is the manner by which I propose to accomplish the
above object:-Inside a box or case of any suitable shape or size and
furnished with a lid I place a wire gauze or perforated metal cylinder
resting by means of trunions in suitable bearings. One of these trunions
projects beyond one side of the box so that a winch handle may bo

page_text: affixed thereto. The wire cylinder aforesaid has a door extending the
whole length thereof, and by which the cinders are introduced and
thrown out when sifted. When the cinders have been placed in the said
cylinder the door and the lid of the box are closed and a rotary motion
applied by means of the winch handle aforesaid. The ashes will separate
themselves from the cinders and fall through the wire gauze to the
bottom of the box, from whence they may be removed by a drawer or
otherwise, after which the cylinder is opened and the cinders turned out
into the case or drawer aforosaid.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edwin Smith in the Great Scal Patent Office
on the 24th June 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWIN
SMITII, of Lombard Street, in thc City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of December, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
cighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Edwin Smith, Her special licence,
that I, the said Edwin Smith, my executors, administrators, and
assigns, or such others as I, the said Edwin Smith, 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, tho
Channel Islands, and Isle of Man, an Invention for "AN IMPROVED CINDER
SIFTER," upon the condition (amongst others) that I, the said Edwin
Smith, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and scals, 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 bo filed
in the Great Scal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Edwin Smith, do hereby declare
the nature of my said Invention, and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the
following statement, that is to say :-
This Invention consists in constructing cinder sifters in such a way
that the ashes shall be separated from the cinders by means of a rotary
motion.
The following is the manner by which I propose to accomplish the
above object :-Inside a box or case of any suitable shape or size and
furnished with a lid I place a wire gauze or perforated metal cylinder
resting by means of trunions in suitable bearings. One of these trunions
projects beyond one side of the box so that a winch handle may be
affixed thereto. The wire cylinder aforesaid has a door extending the
whole length thereof, by which the cinders are introduced and thrown
out when sifted. When the cinders have been placed in the said
cylinder the door and the lid of the box are closed and a rotary motion
applied by means of the winch handle aforesaid. The ashes will separato
themselves from the cinders and fall through the wire gauzo to the
bottom of the box, from whence they may be removed by a drawer or
otherwise, after which. the cylinder is opened and the cinders turned out
into the case or drawer aforesaid.
And in order to explain my said Invention more fully I now proceed
to describe the means by which it may be carried into practical effect,
reference being had to the illustrative Sheet of Drawing accompanying
these Presents, and to the numeral figures and letters of reference
marked thereon respectively, as follows:-
:-
DESCRIPTION OF THE DRAWING.
Figure 1 shows a sectional clevation of a cinder sifter constructed
according to my said Invention; Figure 2, a section through the
line A, B, of Figure 1. In cach of these Figures similar letters are used
to denote corresponding parts.
A is a box or case; B, the lid thereof; C, a horizontal wire gauze or
perforated metal cylinder resting by means of trunions D, D¹, in
bearings E, E¹. The trunion D projects beyond the side of the box to
receive a winch handle F. G is a door extending the whole length of
the cylinder, by means of which the cinders are introduced and thrown
out when sifted.
Having now described and set forth the nature and object of my said
Invention for "An Improved Cinder Sifter" I would remark in con-

page_text: clusion that I hereby declare my Invention to consist in and I claim,
constructing cinder sifters by means of a horizontal wire gauze or
perforated metal cylinder, substantially as described and represented.
In witness whereof, I, tho said Edwin Smith, have hereunto set
my hand and scal, this Twenty-second day of June, in the
year of our Lord One thousand eight hundred and seventy-
five.