AN IMPROVED ROTARY PUMP
Year: 1863

page_text: LETTERS PATENT to Edward Myers, of 2, Millbank Row, County of
Middlesex, Civil Engineer, and Hugh Forbes, of 6, Aberdeen Place,
Maida Hill, County of Middlesex, for the Invention of "AN IMPROVED
ROTARY PUMP."
Scaled the 29th December 1863, and dated the 11th August 1863.
PROVISIONAL SPECIFICATION left by the said Edward Myers and Hugh
Forbes at the Office of the Commissioners of Patents, with their Petition,
on the 11th August 1869.
EDWARD MYERS, of 2, Millbank Row, County of Middlesex, Civil Engi-
neer, and Huan FORBES, of 6, Aberdeen Place, Maida Hill, County of
Middlesex, do hereby declare the nature of tho said Invention for "AN
IMPROVED ROTARY PUMP," to be as follows:-
These improvements consist in the use of a pair of tooth drums or wheels
placed in a suitable compartment, the axles of which druins or wheels rotate
in stuffing boxes or bearings, and the teeth of each drum or wheel are made
to work into the corresponding teeth of the opposite drum or wheel, whereby
water or other liquid is drawn from a lower level, and is ejected from the
upper or opposite surface of the said drums or wheels, and thence issuing
through a tube or orifice is in proportion to the velocity of the rotation of the
said drums or wheels forced to a height or distance. The improvements also
include a peculiar construction of the bearings of the pump, so that the said
bearings may be constantly supplied with oil or other appropriate grease.
Figure 1 represents a perpendicular section of the pump, having drums

page_text: working horisontally. A, A, shews the pump case; B, B, the tooth drums,
which rotate in the interior of the case A, A; C, C, the axles or bearings of
the said drums B, B; D, the inlet of the water, which passes round and
between the teeth of the tooth drums B, B, as indicated by the short arrows
between the said teeth, and is thrown into that part E whence it issues. The
long curved arrows 4, 4, point in the direction in which the tooth drums B, B,
revolve, and the teeth numbered 1, 2, 3, demonstrate the manuer by which
the return of the water from E to D is prevented through the close fitting of
the several teeth of each drum into the corresponding teeth of the other drum.
Each tooth of the drums B, B, have inserted along the whole length of the
top or extremity a slip of india-rubber, leather, or other suitable flexible
material for the purpose of obtaining a more effectual suction as the several
teeth successively rotate close to the interior surface of the case A, A.
Figure 2 represents a horisontal section of the pump, having drums working
horisontally. A, A, shews the pump case; B, B, the tooth drums; C, C, C, C,
the axles or bearings of the drums B, B; F, the stuffing box, through which
the axle C passes; G, G, the sides of the pump case A, A, which are affixed
to the said case A, A, by screws or bolts. Figure 3 represents the top of a
pair of tooth drums working perpendicularly. II, II, shews the pump case;
I, I, the tooth drums; J, J, their axles; K, the inlet, and L the outlet of
the water. Figure 4 represents a perpendicular section of the pump, having
drums working perpendicularly, but it shows only one drum that the com-
partment for oil may be seen. II, II, shews the pump case; I, I, the tooth
drum; J, its axle; P, P, the compartment for oil in the interior of the tooth
drum I, 1; M, the upright stud; O, the pivot, which is inserted in the
stud M; N, the bearing of the tooth drum I, I, which works upon the
pivot O; Q, the stuffing box of the axle J; R, R, the top and bottom of
the pump secured to the case H, II, by screws or bolts; K, the inlet, and
1, the outlet of the water.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed 8
by the said Edward Myers and Hugh Forbes in the Great Seal Patent
Office on the 7th January 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
MYERS, of 2, Millbank Row, County of Middlesex, Civil Engineer, and Пron
FORBES, of 6, Aberdeen Place, Maida Hill, County of Middlesex, send 3
greeting.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
MYERS, of 2, Millbank Row, County of Middlesex, Civil Engineer, and Iron
FORBES, of 6, Aberdeen Place, Maida Hill, County of Middlesex, send 3
erecting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of August, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said Edward Myers and Hugh Forbes, Iler special licence that we, the
said Edward Myers and IIugh Forbes, our executors, administrators, and
assigns, or such others as we, the said Edward Myers and Hugh Forbes,
our 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 ROTARY PUMP,"
condition (amongst others) that we, the said Edward Myers and Hugh Forbes,
our executors or administrators, by an instrument in writing under our or
their hands and seals, or under the hand and seal of one of us or them, 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.
upon the
NOW KNOW YE, that I, the Edward Myers, on behalf of myself and
the said Hugh Forbes, 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 thereof, that is to say :-
These improvements consist in the use of a pair of tooth drums or wheels
placed in a suitable compartment, the axes of which drums or wheels rotate in
stuffing boxes or bearings, and the teeth of each drum or wheel are made to
work into the corresponding teeth of the opposite drum or wheel, whereby
water or other liquid is drawn from a lower level, and is ejected from the
upper or opposite surface of the said drums or wheels, and thence issuing
through a tube or orifice is in proportion to the velocity of the rotation of tho
said drums or wheels forced to a height or distance. The improvements also
include a peculiar construction of the bearings of the pump, so that the said
bearings may be constantly supplied with oil or other suitable lubricating
material.
Before entering into a full description of our improved rotary pump we
would remark that it has before been proposed to arrange machinery or appa-
ratus for raising water and other liquids by means of toothed wheels or drums
revolving in a case or chamber, and a description of such an arrangement of
apparatus is given in the Provisional Specification filed by tho said Edward

page_text: Myers (one of the parties hereto) in the Great Seal Patent Office, bearing
date June 18th, 1855, No. 1389, but owing to certain defects in the arrange-
ment of apparatus therein described no useful practical result could be
obtained therefrom, and in consequence the application for the Patent was
abandoned. We would therefore remark that we make no claim to the raising
of water or other liquid by means of toothed drums or wheels. working
together in a chamber or case, unless they are arranged in combination with
our present improvements, which we will now proceed to describe.
In carrying out our present improvements we arrange a pair of toothed
drums or wheels of metal or other suitable material placed in a suitable com-
partment, the axes of which drums or wheels rotate in stuffing boxes or
bearings, and the half-round teeth of each druin or wheel are made to work
into the corresponding half-round hollows of the opposite drum or wheel (as
shewn in the Drawing hereunto annexed), whereby water or other liquid is
drawn from a lower level, and is ejected from the upper or opposite surface of
the said drums or wheels, and thence issuing through a tube or orifice is (in
proportion to the velocity of the rotation of the said drums or wheels) forced
to a height or distance. The teeth of the drums or wheels are of semicircular
form, as shown in the Drawing, and work or gear into corresponding semi-
circular cavities between the teeth of the drum or wheel working therewith.
The improvements also include a peculiar construction of the bearings of the
pump, so that the said bearings may be constantly supplied with oil or other

page_text: other suitable flexible material for the purpose of obtaining a more effectual
suction as the several teeth successively rotate close to the interior surface of
the case A, A. Figure 2 is a horizontal section of the pump shewn at
Figure 1, the several parts being marked with corresponding letters of
reference. Figure 3 shews a plan of a pair of toothed drums working per-
pendicularly. HI, H, shews the pump case; I, I, the toothed drums; J, J,
the axes; K, the inlet, and L the outlet for the water or other liquid.
Figure 4 is a vertical section of Figure 3, shewing the compartment for the oil
or lubricating material. H, H, the pump case; I, I, the toothed drum ; J, its
axis; P, P, the compartment for oil in the interior of the toothed drum I, I ;
M, the upright stud; O, the pivot, which is inserted in the stud M; N, the
bearing of the toothed drum I, I, which works on the pivot O; Q, the stuffing
box of the axis J; R, R, the top and bottom of the pump secured to the
case H, H, by bolts and nuts or screws; K, the inlet, and L the outlet of the
water. Rotary motion is communicated to the drums by manual or other
motive power in any convenient manner.. In conclusion we would remark
that we do not confine ourselves to the exact details herein shewn and
described, so long as the peculiar character of any part of our improvements
in the construction of rotary pumps be retained.
In witness whereof, I, the said Edward Myers, have hereunto set my
hand and seal, this Seventh day of January, in the year of our Lord
One thousand eight hundred and sixty-four.
Witness,
5 . J. G. TONGUE,
Patent Agent,
34, Southampton Buildings,
Chancery Lane.
EDWARD MYERS. (L.B.)