US122650A - Improvement in propulsion of vessels - Google Patents

Improvement in propulsion of vessels Download PDF

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US122650A
US122650A US122650DA US122650A US 122650 A US122650 A US 122650A US 122650D A US122650D A US 122650DA US 122650 A US122650 A US 122650A
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Prior art keywords
propeller
propulsion
vessels
improvement
tube
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers

Definitions

  • My invention relates to improvements in screw-propellers; and it consists in the application to a stationary tube surrounding the propeller, for preventing lateral displacement, of diametrical plates to receive the water at the rear from the propeller and prevent it from whirling around in said tube.
  • Figure l is a longitudinal sectional elevation of a boat having my improvements applied; and Fig. 2 is an elevation of the stern.
  • A is the ordinary propeller; B, the tube surrounding it; and O, vanes or plates in the tube behind the propeller for receiving the water and checking the tendency to whirl around, and thereby essentially check the whirling,

Description

" T. B. RAYMOND.
improvement in Propulsion of Vessels.
No. 122,650,. PatentedJan.9,187 2.-
fiilitmm: 7 @uwmtur:
fan I UNITED STATES THOMAS' B. RAYMOND, OF WINONA, MICHIGAN.
IMPROVEMENT IN PROPULSION O F VESSELS.
Specification forming part of Letters Patent No. 122,650, dated January 9, 1872.
others skilled in the art to make and use the same, reference being had to the accompanying drawing which forms a part of this specification.
My invention relates to improvements in screw-propellers; and it consists in the application to a stationary tube surrounding the propeller, for preventing lateral displacement, of diametrical plates to receive the water at the rear from the propeller and prevent it from whirling around in said tube.
Figure l is a longitudinal sectional elevation of a boat having my improvements applied; and Fig. 2 is an elevation of the stern.
Similar letters of reference indicate corresponding parts.
A is the ordinary propeller; B, the tube surrounding it; and O, vanes or plates in the tube behind the propeller for receiving the water and checking the tendency to whirl around, and thereby essentially check the whirling,
while the water is subject to the action of the screw.
I am aware that stationary tubes surrounding the wheel, and likewise that spiral vanes, have been used before; but they have been found impracticable on account of the whirling of the water while subject to the screw and separated from the surrounding water which I propose to overcome in great measure, if not entirely, by the employment of these vanes be hind the propeller, and thereby render the employment of the tube a success. In this example the tube is extended beyond the propeller rearward to support the said vanes; butit may terminate near the propeller, and the vanes ,may be otherwise supported.
. rical plates (J, constructed as described, in combination with a propeller, A, as and for the purpose specified.
THOS. B. RAYMOND.
Witnesses:
GEORGE P. COBB, T. G. GRIER.
n rnn'r ,rrron.
US122650D Improvement in propulsion of vessels Expired - Lifetime US122650A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666693A (en) * 1995-09-15 1997-09-16 Cap Toys Toy handle for oral device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666693A (en) * 1995-09-15 1997-09-16 Cap Toys Toy handle for oral device

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