GB659344A - Improvements in or relating to hollow aircraft propeller blades - Google Patents

Improvements in or relating to hollow aircraft propeller blades

Info

Publication number
GB659344A
GB659344A GB11179/49A GB1117949A GB659344A GB 659344 A GB659344 A GB 659344A GB 11179/49 A GB11179/49 A GB 11179/49A GB 1117949 A GB1117949 A GB 1117949A GB 659344 A GB659344 A GB 659344A
Authority
GB
United Kingdom
Prior art keywords
propeller blades
relating
aircraft propeller
mixture
acids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB11179/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
United Aircraft Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
Publication of GB659344A publication Critical patent/GB659344A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/78—Making other particular articles propeller blades; turbine blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Hollow propeller blades are filled with a foam formed of a thermo-setting alkyd-diisocyanate resin. This is the product of a mixture of polyhydroxy alcohol and dicarboxylic acids, some of the alcohol having at least three functional groups, the acids being aryl and alkyl carboxylic acids. The mixture is cooked, a small water addition is made to control density and an organic diisocyanate is then added.
GB11179/49A 1948-05-04 1949-04-27 Improvements in or relating to hollow aircraft propeller blades Expired GB659344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US659344XA 1948-05-04 1948-05-04

Publications (1)

Publication Number Publication Date
GB659344A true GB659344A (en) 1951-10-24

Family

ID=22066130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11179/49A Expired GB659344A (en) 1948-05-04 1949-04-27 Improvements in or relating to hollow aircraft propeller blades

Country Status (1)

Country Link
GB (1) GB659344A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702085A (en) * 1952-05-23 1955-02-15 United Aircraft Corp Closure means for hollow type propeller blades
US2970118A (en) * 1954-07-08 1961-01-31 Hudson Foam Plastics Corp Cellular polyurethane resin and process of preparing same
US3310116A (en) * 1966-02-16 1967-03-21 Mitsui Shipbuilding Eng Marine propeller
DE3146048A1 (en) * 1980-11-24 1982-08-19 United Technologies Corp., 06101 Hartford, Conn. PROPELLER BLADE
GB2240588A (en) * 1990-01-31 1991-08-07 Toshiba Kk Ventilating fan
GB2279114A (en) * 1993-06-15 1994-12-21 Nuaire Ltd Fan impeller blade
EP2368652A1 (en) * 2010-03-01 2011-09-28 Vari-Form Inc. Hydroformed turbine blade and method of manufacturing thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702085A (en) * 1952-05-23 1955-02-15 United Aircraft Corp Closure means for hollow type propeller blades
US2970118A (en) * 1954-07-08 1961-01-31 Hudson Foam Plastics Corp Cellular polyurethane resin and process of preparing same
US3310116A (en) * 1966-02-16 1967-03-21 Mitsui Shipbuilding Eng Marine propeller
DE3146048A1 (en) * 1980-11-24 1982-08-19 United Technologies Corp., 06101 Hartford, Conn. PROPELLER BLADE
GB2240588A (en) * 1990-01-31 1991-08-07 Toshiba Kk Ventilating fan
GB2240588B (en) * 1990-01-31 1994-08-03 Toshiba Kk Ventilating fan
GB2279114A (en) * 1993-06-15 1994-12-21 Nuaire Ltd Fan impeller blade
EP2368652A1 (en) * 2010-03-01 2011-09-28 Vari-Form Inc. Hydroformed turbine blade and method of manufacturing thereof
US8814523B2 (en) 2010-03-01 2014-08-26 Vari-Form, Inc. Hydroformed turbine blade

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