US132991A - Improvement in rudders - Google Patents
Improvement in rudders Download PDFInfo
- Publication number
- US132991A US132991A US132991DA US132991A US 132991 A US132991 A US 132991A US 132991D A US132991D A US 132991DA US 132991 A US132991 A US 132991A
- Authority
- US
- United States
- Prior art keywords
- shaft
- axis
- rudders
- propeller
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000272168 Laridae Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000013707 sensory perception of sound Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
Definitions
- My invention consists of a rudder of two blades, arranged side by side, one on each side of the axis, and distant from each other so as to allow a solid flow of water between them, connected at top by a horizontal bar or disk to the axis or shaft; also connected in like manner at the bottom to a pivot stepped in the projecting end of the keel, and also divided at or near the middle vertically, and similarly connected by disks or bars to a journal fitted in a block in which the projecting end of the propeller-shaft is also jonrnaled, so as to strengthen the rudder and support thepropellcr-shatt, all as hereinafter described.
- Figure 1 is a side elevation of the rudderpropeller and part of a ships hull, with the hearings or" the rudder-shaft sectioned;
- Fig. 2 is a rear elevation of the rudder;
- Fig. 3 is a top View; and
- Fig. at is a horizontal section of Fig. 3 on the line :0 m of Fig. 2.
- a and A represent the two propeller-blades, placed side by side on opposite sides of the axis, and connected at the top to the shaft B by a horizontal disk, 0, also connected at the lower ends to the pivot D by adisk, E.
- the disks G posite the propeller-shaft F these blades are divided, and they are connected by the disks G to a journal, H, between said disks, which is fitted in bearing-block I, in which the propeller-shaft has also a bearing, K, by which the blades are greatly strengthened and the propeller-shaft is considerably supported.
- the disks are provided with numerous large holes, L, to relieve them from lilting the water or being resisted by it as the stern of the vessel rises and falls.
- Two blades in this arrangement being eccentric to the longitudinal vertical axis, have more than double the power of one blade of the same size arranged in the axis, and being centered with the axis as to its transverse plane they are balanced as to each other, also as to the axis, so they can be operated as easily as a single-balanced blade can be.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Crushing And Pulverization Processes (AREA)
Description
.2 N rrnn STATES PATENT FFICE.
IMPROVEMENT lN RUDDERS.
Specification forming part of Letters Patent No. 132,991, dated November 12, 18772.
To all whom it may concern Be it known that I, RICHARD EANDLY THOMAS, of Kids Grove, near Stokeon-Trent, England, have invented a new and useful I1nprovement in Rudders for Vessels, of which the following is a specification:
My invention consists of a rudder of two blades, arranged side by side, one on each side of the axis, and distant from each other so as to allow a solid flow of water between them, connected at top by a horizontal bar or disk to the axis or shaft; also connected in like manner at the bottom to a pivot stepped in the projecting end of the keel, and also divided at or near the middle vertically, and similarly connected by disks or bars to a journal fitted in a block in which the projecting end of the propeller-shaft is also jonrnaled, so as to strengthen the rudder and support thepropellcr-shatt, all as hereinafter described.
Figure 1 is a side elevation of the rudderpropeller and part of a ships hull, with the hearings or" the rudder-shaft sectioned; Fig. 2 is a rear elevation of the rudder; Fig. 3 is a top View; and Fig. at is a horizontal section of Fig. 3 on the line :0 m of Fig. 2.
Similar letters of reference indicate corresponding parts.
A and A represent the two propeller-blades, placed side by side on opposite sides of the axis, and connected at the top to the shaft B by a horizontal disk, 0, also connected at the lower ends to the pivot D by adisk, E. Op-
posite the propeller-shaft F these blades are divided, and they are connected by the disks G to a journal, H, between said disks, which is fitted in bearing-block I, in which the propeller-shaft has also a bearing, K, by which the blades are greatly strengthened and the propeller-shaft is considerably supported. The disks are provided with numerous large holes, L, to relieve them from lilting the water or being resisted by it as the stern of the vessel rises and falls.
Two blades in this arrangement, being eccentric to the longitudinal vertical axis, have more than double the power of one blade of the same size arranged in the axis, and being centered with the axis as to its transverse plane they are balanced as to each other, also as to the axis, so they can be operated as easily as a single-balanced blade can be.
Having thus described my invention, I claim as new and desire to secure by Letters Patent A rudder of two blades, A A, arranged side by side on opposite sides of the axis, as described, divided opposite the propeller-shaft, and provided with a journal thereat, with a bearing-block fitted on it, and receiving the journal on the propellershai't, substantially as specified.
RICHARD H. THOMAS.
Witnesses A. LUDINGTON, H. G. SroMs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US132991A true US132991A (en) | 1872-11-12 |
Family
ID=2202407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US132991D Expired - Lifetime US132991A (en) | Improvement in rudders |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US132991A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2601837A (en) * | 1951-01-10 | 1952-07-01 | Dean James Clyde | Rudder construction for vessels |
| US2686490A (en) * | 1950-05-13 | 1954-08-17 | Howard B Lambdin | Rudder |
| US4781633A (en) * | 1986-10-14 | 1988-11-01 | Hunt Milby N | Retractable drive mechanism for marine vessels |
-
0
- US US132991D patent/US132991A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2686490A (en) * | 1950-05-13 | 1954-08-17 | Howard B Lambdin | Rudder |
| US2601837A (en) * | 1951-01-10 | 1952-07-01 | Dean James Clyde | Rudder construction for vessels |
| US4781633A (en) * | 1986-10-14 | 1988-11-01 | Hunt Milby N | Retractable drive mechanism for marine vessels |
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