US172291A - Improvement in center-boards - Google Patents
Improvement in center-boards Download PDFInfo
- Publication number
- US172291A US172291A US172291DA US172291A US 172291 A US172291 A US 172291A US 172291D A US172291D A US 172291DA US 172291 A US172291 A US 172291A
- Authority
- US
- United States
- Prior art keywords
- center
- boards
- improvement
- vessel
- board
- 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
- 238000010276 construction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
Definitions
- This invention relates to the construction of sail-boats and other sailing-vessels; and consists in the center-board device with which light sailing-craft are provided for preventing leeward motion when under sail.
- Figure l is a top or plan view, showing .the position of two separate and distinct center-boards, confined to the boat and arranged to be raised and low ered in the usual manner.
- Fig. 2 is a sectional side view.
- A represents the boat.
- B B are the two center boards. These center-boards do not differ from the usual single center-boards, except they are each placed obliquely to, instead of parallel with, the keel of the vessel or boat.
- the divergence (being in the length of an eightfoot center-board) about one foot from the center of the keel.
- the eight-foot center-board is about the right length for a twenty-four foot boat, so that the length is about one-third that of the vessel.
- the vessel By virtue of the angle at which the centerboards are placed the vessel is set to windward, and made to run much closer to the wind than vessels having the ordinary centerboard.
- the pressure of the wind upon the sails naturally sets the vessel to the leeward, but the oblique center-board counteracts this tendency and sets the vessel to the windward by the same action upon the water that the rudder has in steering the vessel.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
UNITED STATES PATENT OFFICE.
WILLIAM AUSTIN, OF APALAGHIOOLA, FLORIDA.
IMPROVEMENT IN CENTER-BOARDS.
Specification forming part of Letters Patent No. 172,291, dated January 18, 1876; application filed May 28, 1875.
To all whom it may concern Be it known that I; WILLIAM AUSTIN, of Apalachicola, in the county of Franklin and State of Florida, have invented a new and useful Improvement in Center-Board for Sailing-Vessels, of which the following is a specification:
This invention relates to the construction of sail-boats and other sailing-vessels; and consists in the center-board device with which light sailing-craft are provided for preventing leeward motion when under sail.
In the accompanying drawing, Figure l is a top or plan view, showing .the position of two separate and distinct center-boards, confined to the boat and arranged to be raised and low ered in the usual manner. Fig. 2 is a sectional side view.
Similar letters of reference indicate corresponding parts.
A represents the boat. B B are the two center boards. These center-boards do not differ from the usual single center-boards, except they are each placed obliquely to, instead of parallel with, the keel of the vessel or boat.
These two center-boards are placed one foot.
more or less, from each other at their forward ends, one being on each side of the keel, and two feet, more or less, at the rear ends, the divergence (being in the length of an eightfoot center-board) about one foot from the center of the keel. About the same ratio of divergence is maintained whether the vessel be large or small. The eight-foot center-board is about the right length for a twenty-four foot boat, so that the length is about one-third that of the vessel.
In using the leeward center-board the windward board. is hauled up.
By virtue of the angle at which the centerboards are placed the vessel is set to windward, and made to run much closer to the wind than vessels having the ordinary centerboard. The pressure of the wind upon the sails naturally sets the vessel to the leeward, but the oblique center-board counteracts this tendency and sets the vessel to the windward by the same action upon the water that the rudder has in steering the vessel.
Having thus described my invention, I claim as new and desire to secure by Letters Patent In combination with a sail-boat 0r sailingvessel, the center boards B B, placed obliquely or at an angle with the keel, substantially as and for the purposes described.
= WILLIAM AUSTIN. Witnesses:
ROBERT KNIGKMEYER,
JOHN W. MALONE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172291A true US172291A (en) | 1876-01-18 |
Family
ID=2241698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172291D Expired - Lifetime US172291A (en) | Improvement in center-boards |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172291A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3088428A (en) * | 1958-07-22 | 1963-05-07 | Majnoni Marcello | Sail-boat |
| US3259093A (en) * | 1965-10-07 | 1966-07-05 | Stephen M Taylor | Sailboat hull |
| US20070116228A1 (en) * | 2005-10-19 | 2007-05-24 | Marco Schneider | Methods and apparatus for data structure driven authorization and/or routing of outdial communication services |
-
0
- US US172291D patent/US172291A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3088428A (en) * | 1958-07-22 | 1963-05-07 | Majnoni Marcello | Sail-boat |
| US3259093A (en) * | 1965-10-07 | 1966-07-05 | Stephen M Taylor | Sailboat hull |
| US20070116228A1 (en) * | 2005-10-19 | 2007-05-24 | Marco Schneider | Methods and apparatus for data structure driven authorization and/or routing of outdial communication services |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US652876A (en) | Hull for ships or boats. | |
| US2353007A (en) | Sailing vessel | |
| US606104A (en) | twining | |
| US3259093A (en) | Sailboat hull | |
| US5388A (en) | Boat fob sailing | |
| US492022A (en) | Sailing vessel | |
| US288819A (en) | Fbedebigk keaegee | |
| US214101A (en) | Improvement in construction of sharpie-boats | |
| US365A (en) | Improvement in ship-building | |
| US647591A (en) | Boat. | |
| US231595A (en) | mareg-lia | |
| US768085A (en) | Safety-keel for vessels. | |
| US1408270A (en) | Marine vessel | |
| US647703A (en) | Sail-boat. | |
| US1033220A (en) | Boat. | |
| US203586A (en) | Improvement in construction of hulls of steam-vessels | |
| US180691A (en) | Improvement in construction of sail-boats | |
| US152805A (en) | Improvement in the construction of the after hulls of yachts | |
| US559717A (en) | Marine vessel | |
| US1270466A (en) | Toy sailing-craft. | |
| US38294A (en) | Improvement in ship-building | |
| US749412A (en) | Albert vieet | |
| US361102A (en) | Sail for vessels | |
| US258803A (en) | Island | |
| US486158A (en) | John cook |