IMPROVE- MENTS IN SPITTOONS, KNOWN ALSO AS CUSPADORES
Year: 1876

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake, & Co.,
Patent Agents, Southampton Buildings, London, for the Invention of "IMPROVE-
MENTS IN SPITTOONS, KNOWN ALSO AS CUSPADORES." A communication from
abroad by James C. Moore, of Philadelphia, Pennsylvania, United States of
America.
Sealed the 23rd September 1876, and dated the 11th April 1876.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 11th April 1876.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. IMPROVEMENTS IN SPITTOONS, KNOWN ALSO AS
CUSPADORES." A communication.
"
This Invention has relation to self-righting spittoons or cuspadores, and it consists
in the novel construction and arrangement of the parts thereof in such a manner as
to cause the centre of gravity to coincide or very nearly so with the plane of the
cusp or salient angle of the body. As usually constructed this cusp or angle where
the breast joins the base is some distance below the centre of figure of the utensil,
and the weight of the breast and funnel exceeds that of the base to such an extent
that the cuspadore is very liable to fall over. It has been proposed to obviate this
difficulty by loading the base with superabundant metal.
According to this Invention the cusp or projecting angle which extends around
the body is designed to be brought upward, and the breast to be made nearly in the
plane of the cusp. The funnel having the usual depth and a diameter at its top
about equal to that of the base at the cusp will be unable to balance the base when
the utensil is thrown over on the cusp. By this construction the centre of gravity
and the centre of figure are closely approximated and a self-righting cuspadore is
formed without superweighting the base, the utensil being constructed of the
ordinary materials.
The base or foot of the cuspadore has a rounded bottom, the central portion of
which is flattened to give steadiness in the upright position.
The said base and other portions of this utensil are made of sheet metal or other
material in common use. No thickening or extra weighting of the base is required.
The base is made deep, rising to the cusp by a continuous curved or conical surface.
[Price Gd.]

page_text: The funnel or receiving mouth is designed to be of the usual size and depth, and
the diameter of the base at the cusp is equal or very nearly equal to that of the
funnel at its margin. Being gradually narrowed conically, and downward and
inward, it joins the breast at the throat:
It may be preferred by some to make the diameter of the base a trifle smaller
than that of the margin of the funnel, but this is not always required. Any liquid
in the utensil will, because of the superior depth of the base and flattened form of
the breast, aid in righting the vessel when upset.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the 11th
October 1876.
"
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. IMPROVEMENTS IN SPITTOONS, KNOWN ALSO AS
CUSPADORES." A communication from abroad by James C. Moore, of Philadelphia,
Pennsylvania, United States of America.
This Invention has relation to self-righting spittoons or cuspadores, and it consists
in the novel construction and arrangement of the parts thereof in such a manner as to
cause the centre of gravity to coincide or very nearly so with the plane of the cusp
or salient angle of the body. As usually constructed this cusp or angle, where the
breast joins the base is some distance below the centre of figure of the utensil,
and the weight of the breast and funnel exceeds that of the base to such an extent
that the cuspadore is very liable to fall over. It has been proposed to obviate this
difficulty by loading the base with superabundant metal.
But according to this Invention the cusp or projecting angle which extends
around the body is designed to be brought upward and the breast to be made
nearly in the plane of the cusp. The funnel having the usual depth and a diameter
at its top about equal to that of the base at the cusp will be unable to balance the
base when the utensil is thrown over on the cusp. By this construction the centre of
gravity and the centre of figure are closely approximated, and a self-righting
cuspadore is formed without superweighting the base, the utensil being constructed
of the ordinary materials as herein-after set forth.
In the accompanying Drawing Figure 1 is a vertical section of my Invention;
Figure 2 is a side view showing the same overturned.
Like letters indicate the same parts throughout the Drawing.
A designates the base of the cuspadore having a rounded bottom, the central
portion of which is flattened to give steadiness in the upright position, as shown
The base and other portions of this utensil are made of sheet metal or other
material in common use. No thickening or extra weighting of the base is
required.
at a.
B represents the breast which joins the base at the cusp or projecting angle b,
and extends inward nearly in the plane of the cusp to the throat c. This breast
is therefore flattened, and is designed to approximate to a plane passing through the
cusp b at right angles with the axis of the utensil. The base is made deep, rising
to the cusp by a continuous curved or conical surface as indicated at d.
C designates the funnel or receiving mouth. This is designed to be of the usual
size and depth, and the diameter of the base at the cusp is equal or very nearly
equal to that of the funnel at its margin. Being gradually narrowed conically, and
downward and inward, it joins the breast at the throat c.
It may be preferred by some to make the diameter of the base a trifle smaller
than that of the margin of the funnel; but this is not always required. Any liquid
in the utensil will, because of the superior depth of the base and flattened form of
the breast, aid in righting the vessel when upset.

page_text: Having thus fully described the said Invention as communicated to me by my
foreign correspondent and the manner of performing the same, I wish it understood
that I claim-
A self-righting vessel having a deep rounded base terminating in a foot, a funnel
whose mouth is in diameter equal to or greater than the said base, and a flattened
breast uniting said base and funnel, the said breast approximating to the planes
of the centres of gravity and figure, which lie nearly in the plane of the cusp or
salient angle of the body as above specified.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Eleventh day of October, in the year of our Lord One
thousand eight hundred and seventy-six.
WA, ROBT. LAKE. (L.S.)