AIRCRAF T ENGINEERING October, 1939 Some Recent Patents of Aeronautical Interest Granted in the U.S.A. 2,162,705 . Hull Spray Reducing Construc assignors to the firm Henschel Flugzeug-Werke a corporation of Delaware. Application Dec. 4, tion . Walter S. Diehl, United States Navy. A. G., Schonefeld, Teltow, Germany. Application 1935. Serial No. 52,883. 10 claims . [Class 244-113.] Application January 22, 1938. Serial No. 186,326. Februar y 4, 1938. Serial No. 188,802. In Germany 10. In combination with an airplane and a wing 6 Claims. [Class 114-66.5.] (Granted under the April 14, 1936. 9 Claims. [Class 113-38.] therefor, means for temporarily increasing the Ac t of March 3, 1883, as amended April 30, 1928; 1. A press of the character described, comprising dra g of said airplane comprising, an elongated membe r movably secured to the supporting 370 O. G. 757.) a support, a lower die, a rod movable vertically structur e of said wing, a plurality of spaced apart abov e said support, fluid-pressure actuated means substantiall y rigid projections operatively associated for raising and lowering said rod, and for applying with said movable member for movement thereby, downward pressure thereto when lowered, a heavy th e spaces between adjacent projections being tool-holder for holding an upper die, means greate r tha n the widths of th e individual projections, releasably coupling said tool-holder to said rod so an d means for moving said elongated member to tha t it may be raised and lowered therewith, and move said projections out of the contour of said fluid-pressure actuated control means for releasing 1. A hull spray reducing construction comprising wing and into a position substantially transverse th e coupling between said rod and said tool-holder a plurality of steps placed along the outer under t o the airstream flowing over the surface of said whereby said tool-holder will drop freely, in edges of the bottom of the hull, said steps each wing. dependentl y of said red. being in the form of a tetrahedron having its apex forward of its base an d having its base side coinciding 2,163,663 . Controllable-Pitch Propeller. wit h the chine of the hull. Fran k W. Caldwell, Hartford, Conn., assignor to United Aircraft Corporation, East Hartford, Conn., 2,163,482 . Aircraft Having Rotative Sus a corporation of Delaware. Application June 8, tainin g Means. Peter Cameron, Kelvinside, 1935. Serial No . 25,615. 3 Claims. [Class 170-163.] Glasgow, Scotland. Application December 24, 1936. Serial No. 117,627. In Great Britain Januar y 1, 1936. 12 Claims. [Class 244-17.] 2,164,545 . Airplane. John P. Rogers, Williamsport, Pa., assignor to Aviation Manu facturing Corporation, Williamsport, Pa., a cor poration of Delaware. Application Nov. 13, 1937. Serial No. 174,411. 14 claims. [Class 244-57.] 1. In combination with a controllable airscrew and driving means therefor, means for auto matically adjusting the blad e angle of said airscrew, a pressure line, a drain, and means for connecting said airscrew adjusting means with said pressure line or said drain comprising, a servo valve having two chambers, a piston in each chamber said pistons being operatively connected together, means hydraulically connecting said propeller adjusting means , said pressure line and said drain to one of 1. For flying machines of the type set forth a said chambers, means connecting said pressure line 1. In an airplane, the combination of a support roto r head, hollow radially extending members a t two spaced points to th e other of said chambers, ing structure, a n internal combustion engine carried secured to said head, outer hollow members a pilot valve, means connecting said pilot valve b y the structure, a cowl forming a tunnel extending telescopic on said radially extending members, wit h said drain, means comprising a pair of spaced in a fore and aft direction of the airstream of the roto r blades secured to said outer members, a screw conduits connecting said pilot valve with said other moving airplane and having an inlet opening at threade d spindle extending through each inner chamber , and a speed responsive mechanism for its front end and an outlet opening at its rear end hollow member, a nut threaded on said spindle, a operating said pilot valve. for the passage of air therethrough, an engine hollow rod carried by said nut and resilient means accessory disposed in the tunnel, and a turbine connecting said hollow rod and said outer hollow driven by the engine exhaust gases and disposed membe r together. 2,163,655 . Slotted Airplane Wing Tip. in the tunnel for operating the accessory. Charles H. Zimmerman, West Hartford, Conn. 2,163,517 . Press for th e Flawles s Deforming Application April 2, 1938. Serial No. 199,637. of Flat Blanks. Ludwig Oeckl, Dessau, and 1 Claim. [Class 244-40.] (Granted under the Erhar d Midler, Esslingen-Neckar, Germany, Act of March 3, 1883, as amended April 30, 1928 ; 2,164,678 . Rotary Blade or Wing for 370 O. G. 757.) Aircraft . James Allan Jamieson Bennett, Esher, Means for increasing the stability and lift of England , assignor, by mesne assignments, to aircraft wing tips comprising wing slot means Autogiro Company of America, a corporation of extendin g upwardly and rearwardly in a smooth Delaware . Application Oct. 15, 1936. Serial curve through the wing adjacent the tip, said slot No . 105,794. In Great Britain Oct. 15, 1935. mean s comprising a long slot adjacent the wing 2 claims. [Class 244-123.] 1. For an aircraft sustaining rotor, a rotor blade havin g a main longitudinal structural member of one-piece tubular construction and of sub stantiall y oval cross section, extending throughout ti p edge and parallel to a tangent thereto, and a mos t of the length of th e blad e ; and ribs a t intervals shor t slot forwardly of and parallel to said longer along the blade each comprising a solid block slot, said slots being at an acute angle to the * The above abstracts of patents granted in the United States aperture d to receive the main structural member, direction of travel of the aircraft. are taken, by permission of the Department of Commerce, from the clips secured t o cither end of said block, an d a truss- Official Gaxette of the United States Patent Office. Printed copies of like trailing member secured to one of said clips; the full specifications can be obtained, price 10 cents each, from the 2,164,531 . Control Device for Airplanes. Commissioner of Patents, Washington, D.C., U.S.A. an d means co-operating with said clips to secure Joh n G. Lee, Farmington, Conn., assignor to Except where otherwise stated, the specification is unaccompanied th e ribs on the spar. United Aircraft Corporation, East Hartford, Conn., by drawings if none is reproduced.
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Oct 1, 1939
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