160 AIRCRAFT ENGINEERING May, 1940 Some Recent Patents of Aeronautical Interest Granted in the U.S.A. 2,174,337 . Method of makin g Flexible Valve havin g an index to indicate, in conjunction with Seats . Frederick A. Welsmiller and Andrew said indicating device, the altitude above said Schneider, Saginaw, Mich., assignors to Eaton trail. Manufacturing Company, Cleveland, Ohio, a corporation of Ohio. Application September 21, 1937. Serial No. 164,888. 3 Claims. [Class 29-156.7] 2,174,422 . Flap Control Mechanism . Isaac M. Laddon , San Diego, and Henry K. Growald, Mission Beach, Calif., assignors to Consolidated Aircraft Corporation, a corporation of Delaware. Application November 18, 1936. Serial No. 111,414. 16 Claims. [Classes 244-42.] I n an aerofoil in combination, a relatively fixed mai n section, an intermediate section pivotally 2,174,946 . Autorotative-Winged Aircraft. fixed thereto, a trailing edge section pivotally The method of making a ring-like flexible valve Jame s G. Kay, Hatboro, Harold F. Pitcairn, Bryn attache d to th e said intermediate section, and means seat element for an internal combustion engine of Athyn , and Agnew E. Larsen, Huntingdon Valley, incorporating release mechanism and tension means th e poppet valve type which comprises providing a Pa. , assignors, by mesne assignments, to Autogiro operatin g to variably determine the angular suitable frusto-conical shaped blank having a Compan y of America, a corporation of Delaware. position of the said trailing edge section with counterbored aperture extending therethrough Application April 2, 1935. Serial No. 14,304. 25 respect to the said intermediate section, the said with the large end of said aperture which also forms Claims. [Class 244-18.] means also operating to automatically restore the th e seat proper opening into the large end of the said trailing edge section to a position aligned with blan k and an annular tapered groove converging th e said intermediate section whenever the latter toward s its bottom in the large end of the blank exceeds predetermined limits of movement. in spaced relation with said counterbore and under cuttin g a portion of the blank radially inwardly of 2,174,717 . Multiposition Controllable Pitch th e groove, the outer side wall of said groove Propeller . Frank W. Caldwell, Hartford, Erle diverging toward the surface of the blank, contract Martin, West Hartford, and John Elmer Anderson, ing the portion of the blank externally of the groove Portland , Conn., assignors to United Aircraft t o only partly close said groove, and subsequently Corporation, East Hartford, Conn., a corporation machinin g the blank to the desired final shape. of Delaware. Application August 4, 1936. Serial No. 94,202. 29 Claims. [Class 170-163.] 2,174,418 . Engine Cooling Means. Donald S Horsey, West Hartford, Conn., assignor to United Aircraft Corporation, East Hartford, Conn., a corporation of Delaware. Application March 26, 1937. Serial No. 133,167. 10 Claims. [Class 123-171.] An aircraft having an autorotationally actuable I n combination with a radial air-cooled internal- sustaining rotor, a propulsive airscrew, and an combustion engine having a plurality of radially engine for driving the airscrew, in which the air disposed cylinders each comprising a barrel portion screw is mounted in the nose of the aircraft on a and a head portion provided with cooling surfaces substantiall y horizontal axis, in which the sustain and means providing a flow of cooling air past said ing rotor is mounted above the airscrew on a gene cylinders, means comprising a plurality of concentric rally upright axis spaced appreciably behind the annula r guide members providing separate air airscrew, and in which the engine is positioned with passages to the head portions and barrel portions its centre of gravity below the axis of the airscrew of all of said cylinders, like portions of said cylinders behind the axis of the rotor, the engine further being included in a single passage, said guide being positioned with its axis inclined upwardly an d forwardly to pass through the airscrew generally centrally thereof. A controllable-pitch airscrew having in combina 2,175,825 . Engine Mount. Kenneth A. tion, a hub carrying movably mounted blades, a Browne, Westwood, N.J., and Edward S. Taylor, governor for controlling the pitch of said airscrew Cambridge, Mass., assignors by mesne assignments, below a predetermined high pitch limit; means, t o Wrigh t Aeronautical Corporation, Paterson, N.J., independent of the governor, for moving the blades a corporation of New York. Application January 8, t o a pitch above the governor controlled high pitch 1938. Serial No. 183,986. 23 Claims. [Class 248-5.] limit and means, also independent to said governor, for returning said blades to a pitch below the governor controlled high pitch limit. 2,174,785 . Altitude Determining System for Airplanes . John Hays Hammond, Jr., Gloucester, Mass. Application April 29, 1937. Serial No. 139,705 3 Claims. [Class 250-1.] A device for determining distance above a radio trail of the type which varies in field strength members being arranged to provide, for said according to altitude, which comprises a radiant passages, air outlet openings of different degrees of energy receiver having means to receive radiant restriction to impose on the air flowing through said energy from said trail and to derive signal current passages differential pressure heads proportional to therefrom, volume control means for adjusting the In a flexible engine mounting, a mounting th e cooling requirements of the head portions and outpu t energy of said receiver, an indicator to structure , a plurality of links each pivoted at one th e barrel portions of said cylinders. indicate the signal strength, an expander network end thereto, an engine- to which said links are having an input circuit connected to said receiver pivoted at their other ends, and a resilient con and an output circuit connected to said indicating nexion in each said link said connexions having * The above abstracts of patents granted in the United States device, means responsive to variations in signal similar spring rates, said links converging from said are taken, by permission of the Department of Commerce, from the strength to change the transmission characteristics mountin g structure and comprising elements of a Official Gazette of the United States Patent Office. Printed copies of the full specifications can be obtained, price 10 cents each, from the Of said expander network so as to increase the conical frustrum, the point of conical convergence Commissioner of Patents, Washington, D.C., U.S.A. proportional changes in signal current applied to of the link axes intersecting a t a point more remote Except where otherwise stated, the specification is unaccompanied said indicating device, said volume control means from the structure than the e.g. of said engine. by drawings if none is reproduced.
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: May 1, 1940