US167036A - Improvement in keels for boats - Google Patents
Improvement in keels for boats Download PDFInfo
- Publication number
- US167036A US167036A US167036DA US167036A US 167036 A US167036 A US 167036A US 167036D A US167036D A US 167036DA US 167036 A US167036 A US 167036A
- Authority
- US
- United States
- Prior art keywords
- keels
- keel
- wood
- boats
- stem
- 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
- 239000002023 wood Substances 0.000 description 20
- 241000272168 Laridae Species 0.000 description 16
- 210000000614 Ribs Anatomy 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 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
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
Definitions
- my invention consists in the keel of a boat or vessel with stem and stern posts all made of a single piece of wood bent in the form required for that purpose; also, in making ribs or flanges on the forming the stem, and the end 0 also turned up to form the stern-post, all in the form shown in the drawing.
- keels gradually wider on the bottom from the stem toward the center, and gradually narrower as it reaches its termination in the dead-wood at the stern.
- This increase in the width at the bottom of the keel consists in a rib or flange, G, Fig. 2, on each side of the keel, which may be worked out of the solid wood of the keel or applied in separate pieces, either of wood or metal.
- ribs The use of these ribs is to hold the water when the boat is sailing on the wind, or tipped, or careened, so'as to prevent its careening so far as it would if there were no ribs on the keel; and it is estimated that a keel of four inches in width, with ribs from two to five inches in width, is equal in resistance to a keel seven inches in width without the ribs.
- Another advantage of the narrow keel is, the boat draws less water, and when sailing on the wind the ribs prevent the boat from falling off or going to leeward so much as it would do if there were no ribs.
- My improved keels, with stem and stern posts made of a single piece of wood, are far stronger and made with far less labor, and, consequently, at far less cost, than when the stem and stern post are scarfed and bolted to the keel, and it is far less likely to leak.
- a piece of wood may be prepared wide enough for two or more keels and bent, and sawed apart lengthwise.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
Description
A, 'snvensou.
Keels for Boats.
Patented Aug. 24,1875.
N. PETERS, PHOTOJJTHOQRAPMER, WASHMGTON, D c,
UNITED STATES PATENT OFFICE.
AUGUSTUS STEVENSON, OF KITTERY, MA1NE.
IMPROVEMENT IN KEELS FOR BOATS.
Specification forming part of Letters Patent No. 167,036, dated August 24, 1875; application filed April 19, 1875.
To all whom it may concern Be it known that I, AUGUSTUS STEVENSON, of Kittery, York county, in the State of Maine, have invented certain new and usefulImprovements in the Keels of Boats and Vessels with stem and stern posts 5 and I herebydeelare the following to be a full and exact description thereof, reference being had to the accompanying drawings forming a part of this specification.
The nature or essence of my invention consists in the keel of a boat or vessel with stem and stern posts all made of a single piece of wood bent in the form required for that purpose; also, in making ribs or flanges on the forming the stem, and the end 0 also turned up to form the stern-post, all in the form shown in the drawing.
To make my improved keel with stem and stern post, I prepare a straight piece of wood of proper size and length, and bend it into the form required, the wood being first steamed in the manner well known and practiced by ship-builders. After the keel is bent and dried I work it into such form as will suit the purpose for which it is intended to be used, by grooving the stem and stern posts to receive the ends of the planking. as shown at D and E; and a piece of dead-wood, F, may be applied under the stern-post C.
- I prefer to make my keels gradually wider on the bottom from the stem toward the center, and gradually narrower as it reaches its termination in the dead-wood at the stern. This increase in the width at the bottom of the keel consists in a rib or flange, G, Fig. 2, on each side of the keel, which may be worked out of the solid wood of the keel or applied in separate pieces, either of wood or metal. The use of these ribs is to hold the water when the boat is sailing on the wind, or tipped, or careened, so'as to prevent its careening so far as it would if there were no ribs on the keel; and it is estimated that a keel of four inches in width, with ribs from two to five inches in width, is equal in resistance to a keel seven inches in width without the ribs. Another advantage of the narrow keel is, the boat draws less water, and when sailing on the wind the ribs prevent the boat from falling off or going to leeward so much as it would do if there were no ribs.
My improved keels, with stem and stern posts made of a single piece of wood, are far stronger and made with far less labor, and, consequently, at far less cost, than when the stem and stern post are scarfed and bolted to the keel, and it is far less likely to leak.
In making my improved keels a piece of wood may be prepared wide enough for two or more keels and bent, and sawed apart lengthwise.
I claim- The new article of manufacture described, to wit, a keel for a boat or vessel with stem and stern post all made of a single piece of wood bent in the form required, substantially as described.
AUGUSTUS STE VEN SON.
Witnesses:
TIMO. DANE, G. W. T. PUTNAM.
Publications (1)
Publication Number | Publication Date |
---|---|
US167036A true US167036A (en) | 1875-08-24 |
Family
ID=2236445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US167036D Expired - Lifetime US167036A (en) | Improvement in keels for boats |
Country Status (1)
Country | Link |
---|---|
US (1) | US167036A (en) |
-
0
- US US167036D patent/US167036A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US167036A (en) | Improvement in keels for boats | |
US911806A (en) | Boat. | |
US578239A (en) | Henry a | |
US518702A (en) | Vessel | |
US727894A (en) | Sectional hollow boat-gunwale. | |
US203940A (en) | Improvement in construction of ships | |
US650333A (en) | Construction of ships or boats. | |
US5388A (en) | Boat fob sailing | |
US536177A (en) | Anchor | |
US494288A (en) | Portable nesting boat | |
US172291A (en) | Improvement in center-boards | |
US509672A (en) | Patrick o brien | |
US603532A (en) | James mitchell | |
US295153A (en) | Jacob david | |
US60988A (en) | Improved paddle-wheel | |
US529065A (en) | Vessel | |
US555250A (en) | Centerboard for yachts or other vessels | |
US141083A (en) | Improvement in camels for raising sunken vessels | |
US5368A (en) | Improvement in ship-building | |
US121346A (en) | Improvement in canal-boats | |
US141609A (en) | Improvement in life-boats | |
US1191417A (en) | Life-raft. | |
US277443A (en) | John s | |
US527511A (en) | George rooke | |
US580237A (en) | Rudder for boats |