A New FILTER
Year: 1824

page_text: SCHRODER'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HERMAN
SCHRODER, of Hackney, in the County of Middlesex, Broker, send greeting.
WHEREAS His most Excellent Majesty King George the Fourth, by
His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Eleventh day of August, in the fifth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
Herman Schroder, His especial licence that I, the said Herman Schroder,
my exors, admors, and assigns, or such others as I, the said Herman
Schroder, my exors, adiňors, or assigns, should at any time agree with, and
no others, from time to time and at all times during the term of years therein
expressed, should and lawfully might make, use, exercise, and vend, within
England, Wales, and the Town of Berwick-upon-Tweed, and also in all
His Majesty's Colonies and Plantations abroad, my Invention of "A New
FILTER;" in which said Letters Patent there is contained a proviso obliging
me, the said Herman Schroder, by an instrument in writing under my hand
and seal, particularly to describe and ascertain the nature of my said Inven-
tion, and in what manner the same is to be performed, and to cause the
same to be inrolled in His said Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said recited
Letters Patent, as in and by the same, reference being thereunto had, will
more fully and at large appear.
NOW KNOW YE, in that in compliance with the said proviso, I, the said.
Herman Schroder, do hereby declare that the nature of my said Invention
doth consist in clarifying liquors of various kinds by passing or filtering the
same through one or more wide bags compressed with longitudinal folds into

page_text: thereot, reference being had to the Drawing annexed, and the Figures marked
thereon, that is to say :—
DESCRIPTION OF THE DRAWING.
Fig. 1 represents a section of my said Invention. A is a wide bag, which
I prefer should be made of twilled calico about six feet in circumference and
about three feet long; B is a pipe, casing, or sheath, open at both ends, which
in this Figure is supposed to be made of sacking, this substance being found
equally effective as metal or other pipes and less expensive. It will be seen
that this case (for such I call it) is drawn or otherwise applied over a wide
bag A, by which means the bag A is compressed into longitudinal folds, as
herein-before mentioned. In order to introduce the liquor which is to be
filtered into the bag A, I fix the neck or conical funnel C into the mouth or
top of the bag in the following manner :-The funnel C is furnished with a
ring D; and having introduced the funnel into the mouth of the bag A and
case B, I push the ring down over them both, and then turn over the ends of
the bag and case, when it will be seen that the large end of the funnel being
downwards, the greater the weight of liquor in the bag the tighter it will be held
by the ring on the funnel. The bag and case being thus fixed to the funnel,
I screw it into the bottom of the vat or reservoir of liquor which is to be filtered,
and the bottom of which reservoir is represented in this Figure by the letter E,
where it will be seen a socket is fixed for the reception of the screw at the end
of the funnel. To use my said Invention the reservoir of liquor which is to
be filtered must be in an elevated situation, as the aforesaid bag must hang
downward from it. It should be observed that the case B had better be made
of a conical form, the lower end being the smaller, so that the bag A may be
more easily drawn from it when it is necessary to do so for the purpose of
cleaning the bag. The case should also be somewhat longer than the bag, as
shewn in this Figure, since it then forms a better guide for the clarified
liquor to pass off, and prevents the end of the case from being rent or split by
the swelling of the end of the bag, which it would be apt to do if the bag
were allowed to protrude below the case. Fig. 2 is a section of the funnel C;
and Fig. 3 is a perspective view of the same, shewing the ring D. Now
whereas when the reservoir of liquor to be filtered or clarified is large, I fix
series of any required number of bags and cases at equal or other distances

page_text: throughout the whole surface of the bottom of the reservoir in such manner
that each case shall hang independent of and without touching the one next to
it; and whereas also I sometimes introduce two or more wide bags, one
within the other, and draw the case over the whole, and then the inner bag
may always be considered as the main or principal filter, while the others act
more as safety bags, or as occasional filters in case of a hole or break in the
inner bag; and whereas the precise dimensions and proportions herein-before
named are not those which must necessarily be adhered to, provided always
that the principle of a wide bag or wide bags, inclosed in a much narrower
case, be attended to; and whereas the said case may be a circular pipe of
metal, or a square case of wood, or a net, or in fact any such contrivance that
will confine the said bag or bags as aforesaid; for I do hereby claim as a right of
exclusive privilege only to a bag or bags wide with reference to the case which
covers it or them, and confined in such case as aforesaid in such manner as
to cause the said bag or bags to be compressed into longitudinal folds as
aforesaid, and applied to the purposes of filtration. And such a filter being,
to the best of my knowledge and belief, entirely knew, and never before used
in these Kingdoms, nor in any of His Majesty's Colonies or Plantations
abroad, I do hereby declare this to be my Specification of the same, and that
I do verily believe this my said Specification doth comply in all respects, fully
and without reserve or disguise, with the proviso in my said herein-before in
part recited Letters Patent contained; wherefore I do hereby claim to maintain
exclusive right and privilge to my said Invention.
In witness whereof, I, the said Herman Schroder, have hereunto set
my hand and seal, this First day of February, in the year of our Lord
One thousand eight hundred and f
HERMAN (L.B.) SCHRODER.
AND BE IT REMEMBERED, that on the First day of February, in the
year of our Lord 1825, the aforesaid Herman Schroder came before our
said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stampt according to
the tenor of the Statute made for that purpose.
Inrolled the Eighth day of February, in the year of our Lord One
thousand eight hundred and twenty-five.