CERTAIN IMPROVEMENTS IN HYDRAULIC MACHINES
Year: 1828

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, 1, AUGUSTUS
SIEBE, of Princes Street, Leicester Square, in the County of Middlesex,
Machinest, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-ninth day of March, One thousand eight hundred
and twenty-eight, in the ninth year of His reign, did, for Himself, His heirs
and successors, give and grant unto me, the said Augustus Siebe and Henry
Marriot, of Fleet Strect, in the City of London, Ironmonger, His especial
licence, that we, the said Augustus Siebe and Henry Marriot, our exors,
adñiors, and assigns, or such others as we, the said Augustus Siebe and
Henry Marriot, our exors, adñiors, 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, our Invention
of "CERTAIN IMPROVEMENTS IN HYDRAULIC MACHINES;" in which said Letters
Patent is contained a proviso obliging us, the said Augustus Siebe and Henry
Marriot, or one of us, by an instrument in writing under our hands and seals,
or one of us, particularly to describe and ascertain the nature of our said
Invention, and in what manner the same is to be performed, and to cause the
same to be inrolled in His Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said in part recited
Letters Patent, as in and by the same, reference being thereunto had, will
more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Augustus Siebe, do hereby declare that the nature of our said Invention, and

page_text: the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawings hereunto annexed, and the following
description thereof (that is to say):-
Our Invention of Certain Improvements in Hydraulic Machines consists,―
First, in a particular construction of hydraulic machines, commonly called
rotatory pumps, for drawing, raising, and forcing all fluids and liquids which
may be worked by manual labour, steam, or any other power, the novel
arrangement of which is exhibited in the Drawing hereto annexed, and
will be explained hereafter.
Secondly, lining the pump barrel or barrels with copper or brass, by casting
the iron over the copper or brass.
Thirdly, a new constructed union joint, to connect lead pipes together
instead of soldering, as is the usual practice. Figs. 1 and 2 are sections of
our improved pump; A is a barrel of brass or any other metal; B, a roller,
which revolves by a handle or winch C; this roller has openings or slits in
which the sliding paddles or pistons D, D, D, D, work up and down; E, E, is
a cam placed within the barrel, by which the sliding paddles D are pressed
into the roller B, it revolves; F is a cam within the roller, which drives the
sliding paddles D outwards. [By the rotation of the roller B the paddles or
pistons D are made to produce a vacuum within the barrel, and in consequence
the water flows up the rising main through the space G into the barrel, and
as the padilles D go round, they force the water through an opening H, which
conducts it whenever it may be wanted, and by that means produces a con-
tinual stream without an air vessel; I is a lever within the roller, which moves
a pivot K, screwed into F; L is a spring, which forces the lever I against the
sliding paddles D, D, by which means the said sliding paddles are kept always
tight against the periphery of the barrel, and consequently compensates for
any portion which may be worn off the ends of the paddles by friction; M are
pieces of brass, or any other suitable material, let into the ends and sides of
the sliding paddles for the purpose of forming a metallic packing, which are
forced by springs N, and kept tight against the sides of the barrel A, by which
means the pistons are always preserved air-tight, though subject to constant
wearing. O is another sliding piece of brass, or any other substance, which is
let into the middle of the cam E; this is also forced by a spring P against the
roller B, and is kept air-tight between the opening H and G; Q is the spindle
to which the roller B is attached, and revolves with it; R is a stuffing
box; S, a foot valve in the rising inain which holds the water. [Fig. 3 shews
the outside of the working pump above described; A is the suction pipe or
rising main, and B the force or discharge pipe. [Figs. 4 and 5 show the union
joint; A are the lead pipes; B is a brass ferrel, with a shoulder, which slides

page_text: over the lead pipe; and on the other side there is another barrel C, which
slips over the lead pipe opposite; D is a nut which passes over B after the
ferrels B and C are slidden over the lead pipes, their ends being turned up in
a similar form to the large end of a trumpet; E is a brass ring put between
the ends of the lead pipe and screwed tight together; and the nut D, being
screwed up tight, makes the union joint secure. Figs. 5 and 6 are made of
brass, and exhibit the means of forming an elbow or cross joint. [Casting the
iron barrels over copper or brass pump tubes is effected by first drawing a
wrought iron tube over the copper or brass, then fill them up with sand or
core loom, and put them into moulds instead of a core, by which means the
melted iron will adhere to the iron casing.
Altho I have described the most particular feature of my Invention, I beg
leave to state my cláim consists :-
First, as respects the hydraulic machine or rotatory pump, the particular
excentric form and construction of the cam F, and spring lever I, which pro-
duces the elastic pressure of the slides or pistons against the barrel as they
revolve, and likewise the elastic or spring stop O and P bearing against the
revolving roller; also the metallic packing M and N bearing against the sides
of the barrel, which forms together a metallic piston.
Secondly, the particular construction of the union joint to connect lead pipes
together without soldering; and,
Thirdly, the mode of casting iron over copper or brass, as described.
In witness whereof, I, the said Augustus Siebe, have hereunto set my
hand and seal, this Twenty-ninth day of September, One thousand
eight hundred and twenty-eight
AUGUSTUS (L.S.) SIEBE.
AUGUSTUS (L.S.) SIEBE.
AND BE IT REMEMBERED, that on the Twenty-ninth day of September,
in the ninth year of the reign of His Majesty King George the Fourth, the
said Augustus Siebe came before our said Lord the King in His Chancery,
and acknowledged the Instrument aforesaid, and all and every thing therein
contained and specified, in form above written. And also the Instrument
aforesaid was stamped according to the tenor of the Statute made in the
fifty-fifth year of the reign of His late Majesty King George the Third.
Inrolled the Twenty-ninth day of September, One thousand eight hundred
and twenty eight