DE71388C - Paddle wheel with angled blades for paddle steamers - Google Patents

Paddle wheel with angled blades for paddle steamers

Info

Publication number
DE71388C
DE71388C DENDAT71388D DE71388DA DE71388C DE 71388 C DE71388 C DE 71388C DE NDAT71388 D DENDAT71388 D DE NDAT71388D DE 71388D A DE71388D A DE 71388DA DE 71388 C DE71388 C DE 71388C
Authority
DE
Germany
Prior art keywords
paddle
wheel
blades
steamers
angled blades
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 - Lifetime
Application number
DENDAT71388D
Other languages
German (de)
Original Assignee
O. FLAMM und M. NAGLER in Charlottenburg, Schillerstrafse 113 II
Publication of DE71388C publication Critical patent/DE71388C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H1/00Propulsive elements directly acting on water
    • B63H1/02Propulsive elements directly acting on water of rotary type
    • B63H1/04Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H5/00Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/02Arrangements on vessels of propulsion elements directly acting on water of paddle wheels, e.g. of stern wheels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Cookers (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

An Stelle der gewöhnlichen geraden Schaufeln, welche parallel zur Radwelle stehen, setzt man getheilte Schaufeln, welche in einem Winkel sowohl zu einander, wie zur Radwelle stehen. Dabei sind die Schaufelebenen selbst schraubenförmig gebogen, wie sich das aus der Construction von selbst ergiebt. Das Rad, von vorn gesehen (Fig. 2), zerfällt gewissermafsen in zwei Theile; in jedem einzelnen dieser Theile stehen alle Schaufeln zwar parallel zu einander, aber in einem Winkel zur Radwelle; die äufseren Kanten α und a1 der Schaufeln liegen auf dem Radius des jedesmaligen äufseren Radkreises und ihre gerade Verbindungslinie α α' würde parallel der Radwelle sein; die inneren Kanten i und i1 der Schaufeln liegen ebenfalls auf dem Radius des jedesmaligen inneren Kreises, allein dieser innere Kreis ist gegen den äufseren um einen beliebigen Winkel φ verdreht, so dafs also diese inneren Kanten zwar einander parallel stehen, aber den äufseren Kanten beim Vorwärtsgang des Rades nacheilen und, weil sie gegen die äufseren Kanten um den Winkel φ verdreht stehen und diese Verdrehung allmälig während ihres Verlaufes von der Aufsenkante α bezw. a1 bis zur Innenkante i bezw. i1 hin erreichen, naturgemäfs eine schraubenförmige Verdrehung und Form erhalten. Dadurch wird das Eintauchen der Schaufeln in das Wasser ein ungemein sanftes und allmäliges; es tauchen die beiden Ecken der äufseren Kanten α und al ein, und ganz allmälig schneidet im Fortgange der Bewegung die andere Schaufelfläche ein, ohne den geringsten Stofs oder Schlag. Weil nun die Schaufeln in jedem Rade unter einem Winkel zu einander stehen, greifen sie bei ihrer Bewegung die gesammte Wassermasse, welche keilförmig sich zwischen ihnen befindet,, an und benutzen sie als Stützpunkt für ihre Action. Beim Austritt ist die Sache genau so wie beim Eintritt: erst tritt ganz flach die Aufsenkante α und a1 der Schaufeln aus dem Wasser heraus, wonach allmälig der andere Theil der Schaufel folgt. Die Schaufeln selbst sind vollständig fest auf den Radien -des Rades befestigt und können einander mit ihren Innenkanten i und z'1 berühren oder auch einen Abstand an dieser Stelle bestehen lassen.In place of the usual straight blades, which are parallel to the wheel shaft, split blades are used which are at an angle both to each other and to the wheel shaft. The shovel planes themselves are curved in a helical shape, as is evident from the construction itself. The wheel, seen from the front (Fig. 2), is, as it were, divided into two parts; in each of these parts all the blades are parallel to one another, but at an angle to the wheel shaft; the outer edges α and a 1 of the blades lie on the radius of the respective outer wheel circle and their straight connecting line α α ' would be parallel to the wheel shaft; the inner edges i and i 1 of the blades also lie on the radius of the respective inner circle, only this inner circle is twisted with respect to the outer one by an arbitrary angle φ, so that these inner edges are parallel to one another, but the outer edges are at the Lags forward gear of the wheel and, because they are rotated against the outer edges by the angle φ and this rotation gradually during its course from the outer edge α respectively. a 1 to the inner edge i respectively. i 1 reach, naturally a helical twist and shape obtained. This makes the immersion of the blades in the water extremely smooth and gradual; the two corners of the outer edges α and a l dip in, and very gradually the other blade surface cuts in as the movement proceeds, without the slightest substance or impact. Because the blades in each wheel are at an angle to each other, they attack the entire mass of water, which is wedge-shaped between them, and use them as a base for their action. At the exit the thing is exactly the same as at the entry: first the outer edge α and a 1 of the shovels emerge from the water very flat, after which the other part of the shovel gradually follows. The blades themselves are completely fixed on the radii of the wheel and can touch one another with their inner edges i and z ' 1 or leave a distance at this point.

Claims (1)

Patent-Anspruch:Patent claim: Schaufelrad für Raddampfer mit Schaufeln, welche in ihrer Längsrichtung, .fest und symmetrisch stehend, sowohl einen Winkel zur Achse der Radwelle als auch zu einander bilden.Paddle wheel for paddle steamer with blades, which are fixed and symmetrical in their longitudinal direction standing, both form an angle to the axis of the wheel shaft and to each other. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT71388D Paddle wheel with angled blades for paddle steamers Expired - Lifetime DE71388C (en)

Publications (1)

Publication Number Publication Date
DE71388C true DE71388C (en)

Family

ID=344696

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT71388D Expired - Lifetime DE71388C (en) Paddle wheel with angled blades for paddle steamers

Country Status (1)

Country Link
DE (1) DE71388C (en)

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