to
correct such lateral dip of the main plane, and restore it to an even
keel. To the forward, upper edge of planes (5) connection is made by
means of rod (13) to one arm of a bellcrank lever, (14) the latter being
pivotally mounted upon a fore and aft pin (15), supported from the main
plane; and the other arms of the port and starboard bellcrank levers
(16), are connected by rod (17), which has an eye (18), for receiving
the segmental rod (19), secured to and projecting from cross bar on seat
supporting yoke (7). When, therefore, the main plane tips downwardly on
the starboard side, the rod (17) will be moved bodily to starboard, and
the starboard balancing plane (5) will be inclined so as to raise its
forward edge and depress its rear edge, while, at the same time, the
port balancing plane (5), will be inclined so as to depress its forward
edge, and raise its rear edge, thereby causing the starboard balancing
plane to exert a lifting effect, and the port balancing plane to exert a
depressing effect upon the main plane, with the result of restoring the
main plane to an even keel, at which time the balancing planes (5), will
have resumed their normal, horizontal position.

When the main plane dips downwardly on the port side, a reverse action
takes place, with the like result of restoring the main plane to an even
keel. In order to correct forward and aft dip of the main plane, fore
and aft balancing planes (20) and (23) are provided. These planes are
carried by transverse rock shafts, which may be pivotally mounted in
any suitable way, upon structures carried by main plane. In the present
instance, the forward balancing plane is pivotally mounted in extensions
(21) of the frame (22) which carries the forward, manually operated,
horizontal ascending and descending plane

It is absolutely necessary, in making a turn with an aeroplane, if that
turn is to be made in safety, that the main plane shall be inclined, or
"banked," to a degree proportional to the radius of the curve and to the
speed of the aeroplane. Each different curve, at the same speed, demands
a different inclination, as is also demanded by each variation in speed
in rounding like curves. This invention gives the desired result with
absolute certainty.

The Sellers' Multiplane.

Another innovation is a multiplane, or four-surfaced machine, built and
operated by M. B. Sellers, formerly of Grahn, Ky., but now located at
Norwood, Ga. Aside from the use of