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DE671077C - Jack screw - Google Patents

Jack screw

Info

Publication number
DE671077C
DE671077C DESCH107962D DESC107962D DE671077C DE 671077 C DE671077 C DE 671077C DE SCH107962 D DESCH107962 D DE SCH107962D DE SC107962 D DESC107962 D DE SC107962D DE 671077 C DE671077 C DE 671077C
Authority
DE
Germany
Prior art keywords
wings
screw
angle
plane
screws
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
DESCH107962D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DESCH107962D priority Critical patent/DE671077C/en
Application granted granted Critical
Publication of DE671077C publication Critical patent/DE671077C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/04Helicopters
    • B64C27/08Helicopters with two or more rotors
    • B64C27/10Helicopters with two or more rotors arranged coaxially

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Catching Or Destruction (AREA)

Claims (1)

67 J67 y Otto Schmidt in Bergen über Plauen, Vogtl. HubschraubeOtto Schmidt in Bergen via Plauen, Vogtl. Jack screw Patentiert im Deutschen Reiche vom 13. September 1935 ab Tag der Bekanntmachung über die Erteilung des Patents: 12. Januar 1939Patented in the German Empire on September 13, 1935 Date of publication of the patent grant: January 12, 1939 Es sind Hubschrauben bekannt, deren Flügel an Ringen eines radähnlichen Gestells befestigt sind. Insbesondere ist es auch schon vorgesehlagen worden, derartige Flügel federnd anzuordnen. Werden solche Schrauben über einem größeren Körper, wie einer Kabine, angeordnet, so wird der Abfluß des von der Schraube erzeugten Luftstromes behindert. Um dies zu vermeiden, erhalten die Flügel nach der Erfindung eine solche Einstellung, nämlich etwa unter einem Winkel von 45° zur Umlaufebene, daß die Duft nach außen getrieben wird, und außerdem eine große Flächentiefe. Es ist zwar schon vorgeschlagen worden, aus Stabilitätsgründen der Schraube eine V-förmige Gestalt zu geben (Patentschrift 403628); hierbei handelt es sich aber nur um einen geringen Winkel zur Umlaufebene und außerdem um die üblichen schmalen Flügel schnell laufender Schrauben.There are lifting screws known, the wings of which on rings of a wheel-like frame are attached. In particular, it has already been proposed to have such wings to be arranged resiliently. Will such screws be used over a larger body, like one Cabin, arranged, the outflow of the air flow generated by the screw is hindered. To avoid this, the Wing according to the invention such a setting, namely approximately at an angle of 45 ° to the plane of circulation that the fragrance after is driven outside, and also a large surface depth. It has already been suggested to give the screw a V-shape for reasons of stability (Patent 403628); but this is only a small angle to Circumferential plane and also around the usual narrow wings of fast-moving screws. In der Zeichnung ist eine Ausführungsform einer Hubschraube nach der Erfindung dargestellt. In the drawing is an embodiment shown a jack screw according to the invention. Pat is N τ ans pii UCH:Pat is N τ ans pii UCH: Luftschraube für Hubschrauber mit in einem Radkörper sitzenden, insbesondere federnd angeordneten Flügeln, dadurch gekennzeichnet, daß die Flügel große Flächentiefe in der Umlaufrichtung haben und im Winkel von etwa 450 zur Umlaufebene angeordnet sind.Propeller for helicopters with seated in a wheel body, in particular spring-mounted blades, characterized in that the wing depth large area in the circumferential direction have and are arranged at an angle of about 45 0 to the orbital plane. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DESCH107962D 1935-09-13 1935-09-13 Jack screw Expired DE671077C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH107962D DE671077C (en) 1935-09-13 1935-09-13 Jack screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH107962D DE671077C (en) 1935-09-13 1935-09-13 Jack screw

Publications (1)

Publication Number Publication Date
DE671077C true DE671077C (en) 1939-02-01

Family

ID=7448528

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH107962D Expired DE671077C (en) 1935-09-13 1935-09-13 Jack screw

Country Status (1)

Country Link
DE (1) DE671077C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953934C (en) * 1955-03-08 1956-12-06 Hans Harald Graf Von Saurma Helicopter with a new type of rudder control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953934C (en) * 1955-03-08 1956-12-06 Hans Harald Graf Von Saurma Helicopter with a new type of rudder control

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