CODE LEIE DI DUITIGATION.
Year: 1893

page_text: CODE LEIE DI DUITIGATION.
A New or Improved Puzzle.
1, THOMAS ELLIS DEAN of 44 Elliot Street, Tyldesley, in the County of
Lancaster, Reed Manufacturer, do hereby declare the nature of this invention,
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :--
This invention relates to a puzzle the object of which is to illustrate how one
plug or stopper may be employed to accurately fit either of three such differently
shaped holes as round, square and triangular.
According to this invention the holes are formed in some suitable material such
as wood, the diameter of the circular hole, the side of the square one and a perpen-
dicular line from the base to the apex of the triangular one being all of the
same length, this length, preferably, being also the same as the thickness of the
wood. The plug by means of which such seeming paradoxes may be accomplished
as making a round plug fit into a square hole, a square plug fit into a round hole,
or either a circular or a square plug fit into a triangular hole, consists essentially
of a cylinder of an equal height and diameter. Two diameters are marked at right
angles to each other one on each end of the cylinder and the sides of the cylindrical
plug are cut away from the sides of one diameter to the ends of the other.
A plug
is thus formed which has a round outline in plan, a square one in one elevation and
a triangular one in an elevation at right angles.
The accompanying figures illustrate the construction of the puzzle and how it
may be applied to the demonstration of apparently impossible propositions.
Figure illustrates a plan of a piece of wood in which the three holes have been
formed.
Figure 2 represents elevations of the plug in the three positions corresponding to
the holes.
Figure 3 shews the application of the plug to the different holes.
Figure 4 is a side view at right angles to Figure 3 shewing in dotted lines the
positions of the plug.
It will be seen on reference to the drawings that the plug A consists essentially
of a cylinder of equal height and diameter which is cut away on both sides of a
diameter on one end to the circumference of the other end. A plug thus formed
presents three outlines and as illustrated by Figure 3 may be inserted end first to
fill the circular hole B, with one of the flat sides first to fill the square hole C, and
with what is left of the original circumference of the cylinder first to fill the
triangular hole D.
If desired, the puzzle may have one of the holes omitted and be constructed only
with two.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. In a puzzle a plug constructed to present either a circular, square or triangular
outline substantially as and for the purpose hereinbefore described and as illustrated
by the accompanying drawings.
2. A puzzle constructed and arranged substantially as and for the purpose
hereinbefore set forth and as illustrated by the accompanying drawings.
Dated this 25th day of February A.D. 1893.