FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1911
1911 - 0533.PDF
JUNK 17, 1911. BEING particularly interested in the problem of varying the speed of aeroplanes in flight, I have devoted considerable attention to the design of a mechanism for altering the angle of the wings of a monoplane, which is one of the accepted methods of obtaining variable speed. Drawings illustrating this mechanism are given herewith, «nd I shall be pleased l/DoHTI VARIABLE-SPEED MONOPLANE. By A. J. MOONE. side, are mounted on two sleeves, E, into which the ends 0* the spars are inserted, to act as guides. Working across the- curved slot and in the centre of the plate, A, is a rack-plate, B, cut with so many teeth. Springs, C, normally retain this plate across the slot, and lock the rear spars in any one of several possible positions. The spars are raised or lowered' **S Front and Side Elevation. to supply further particulars to any manufacturer who may be sufficiently interested to wish to try the device. The following is a description of the mechanism :— The wings are built up with the usual front and rear spars, and are arranged to swing on the line of the front spars. The inward thrust of the latter is provided for by connecting the two ends across the fuselage by means of a stout steel tube, M, working in bearings, NN, and tapped at the ends respectively with a right and left-handed thread. It is in in the slot by means of a crank, H, and links, K, which are moved by a lever, P, at the pilot's hand. Attached to the lever, P, is a small grip-handle, Q, which actuates the rack- plate and clears the slot by means of the Bowden wire, R, prior to the movement of lever, P. At the same time as the crank, H, actuates the inner ends of the rear spars they are moved directly throughout their entire length by means of the stay wires. Each wire connected to the upper surface of the rear spar is carried up to the rear end of the cabane. Details of Mechanism this way possible to effect a nice adjustment of the front, or main stay wires. The inner ends of the rear spars are con nected by a steel distance-piece, D, through a slot in a phos phor-bronze plate. A, set vertically in the centre line of the fuselage. This distance-piece takes the inward thrust from the rear spars, and eight afuminium wheels. G. four on each Passed over a small pulley wheel, continued downwards through the centre of the fuselage and over a similar pulley wheel below, and thence up at an angle to the point from which it started, only on the under side of the wing. Short lengths of chain, S, are inserted where the wires would pass over the pulley-wheels. There arc consequently six wires 535
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
