A NEW OR IMPROVED BALL COCK
Year: 1876

page_text: LETTERS PATENT to John McJannet, of Greenock, in the County of Renfrew,
North Britain, for the Invention of "A NEW OR IMPROVED BALL COCK."
the 16th September 1876, and dated the 22nd March 1876.
PROVISIONAL SPECIFICATION left by the said John McJannet at the Office
of the Commissioners of Patents on the 22nd March 1876.
JOHN MCJANNET, of Greenock, in the County of Renfrew, North Britain.
NEW OR IMPROVED BALL COCK."
« A
This Invention relates to a new or improved ball cock, which consists of a
vertical branch, by which the water is led from the supply pipe to the cistern or
other vessel to be supplied therewith. The lower part of this branch terminates
inside a hollow casing, having a discharge orifice at its lower end or side. Beneath
the end of the vertical branch and extending through the casing is a shaft, and to
the portions of it projecting outside the casing the lever with the ball at the end
thereof is attached, so that as the ball rises or falls according to to the level of the
water in tlie cistern the shaft is moved round on its axis through an angle corre-
sponding to the motions of the ball, and a valve being carried on the shaft it is
raised against or lowered from the orifice of the branch within the casing, so that
the supply of water is either cut off or thereby regulated in quantity.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said John McJannet in the Great Scal Patent Office on the 20th September
1876.
JOHN MCJANNET, of Greenock, in the County of Renfrew, North Britain. "A
NEW OR IMPROVED BALL COCK."
My said Invention relates to a new or improved ball cock, which, as shewn in
vertical section at Figure 1, in front elevation at Figure 2, and in transverse section
at Figure 3 of the Drawings hereunto appended, consists of a vertical branch A, by
which the water is led from the feed pipe to the cistern or other vessel to be

page_text: supplied therewith. The lower part of the branch A is connected to or terminates
in a hollow casing or chamber B, which is composed of two halves or portions held
together by bolts C, and at the lower end or side of the said casing or chamber a
discharge orifice is made, through which the water passes outwards into the
cistern or other vessel. A shaft D extends through the casing or chamber B
beneath the lower end of the branch A, and to the portions of the shaft projecting
outside the casing the forked end of a lever E is attached, the lever being prevented
This lever carries the ball at
from vibrating on the shaft by the collars or ruffs e.
its free or outer extremity, and as the ball rises or falls according to the level of
the water in the cistern the shaft D is moved round through an are corresponding
to the motions of the ball. This has the effect of causing an india-rubber, leather,
or other elastic valve a, carried in a bracket or projection b formed on the shaft D,
to be raised against or lowered from the orifice of the branch A, so that the supply
of water is thereby either cut off or regulated in quantity. A screw G formed on
or tapped into the chamber or casing B passes through the side or end of the
cistern or other vessel, and a nut F placed on the projecting part of the said screw
holds the ball cock in position, or it may be so held by other equivalent means.
Instead of securing the parts of the chamber or casing B together by screws, as
shewn at Figure 2 of the Drawings, they may be held or clamped together, as scen
at Figure 4, under which arrangement a screwed ferrule or ring at the lower
part, and a thumbscrew at the upper part, are employed to connect the portions
of the chamber together, or other equivalent means may be used for that purpose.
Having now described and particularly ascertained the nature of my said
Invention, and the system, mode, or manner in or under which the same is or may
be used or practically carried into effect, I would observe in conclusion that what
I consider to be novel and original, and thereforo claim as the Invention secured to
me by the herein-before in part recited Letters Patent is, the new or improved
ball cock hercin-before described and shewn on the appended Sheet of Drawings,
wherein the ball in rising or falling according to the level of water in the cistern
or vessel raises and closes a valve against, or lowers and opens it from the orifice,
supplying the water substantially as set forth.
In witness whereof, I, the said John McJannet, have hereunto set my hand
and seal, this Fifteenth day of September One thousand eight hundred and
seventy-six,