l marginal
portions may be moved to different angles relatively to the normal
plane of the body of the aeroplane, so as to present to the atmosphere
different angles of incidence, and means for so moving said lateral
marginal portions, substantially as described.

Application of vertical struts near the ends having flexible joints.

Means for simultaneously imparting such movement to said lateral
portions to different angles relatively to each other.

Refers to the movement of the lateral portions on the same side to the
same angle.

Means for simultaneously moving vertical rudder so as to present to
the wind that side thereof nearest the side of the aeroplane having the
smallest angle of incidence.

Lateral stability is obtained by warping the end wings by moving the
lever at the right hand of the operator, connection being made by wires
from the lever to the wing tips. The rudder may also be curved or warped
in similar manner by lever action.

Wrights Obtain an Injunction.

In January, 1910, Judge Hazel, of the United States Circuit Court,
granted a preliminary injunction restraining the Herring-Curtiss
Co., and Glenn H. Curtiss, from manufacturing, selling, or using for
exhibition purposes the machine known as the Curtiss aeroplane. The
injunction was obtained on the ground that the Curtiss machine is an
infringement upon the Wright patents in the matter of wing warping and
rudder control.

It is not the purpose of the authors to discuss the subject pro or con.
Such discussion would have no proper place in a volume of this kind. It
is enough to say that Curtiss stoutly insists that his machine is not
an infringement of the Wright patents, although Judge Hazel evidently
thinks differently.

What the Judge Said.

In granting the preliminary injunction the judge said:

"Defendants claim generally that the difference in construction of their
apparatus causes the equilibrium or lateral balance to be maintained and
its aerial movement secured upon an entirely different principle from
that of complainant; the defendants' aeroplanes are curved, firmly
attached to the stanchions and hence are incapable of twisting or
turning in any direction; that the supplementary planes or so-called
rudders are secured to the forward stanchion at the extreme lateral ends
of the planes and are adjusted midway between the upper and lower
planes with the margins extending beyond the edges; that in moving the
supplementary planes