US148726A - Improvement in center-boards for vessels - Google Patents
Improvement in center-boards for vessels Download PDFInfo
- Publication number
- US148726A US148726A US148726DA US148726A US 148726 A US148726 A US 148726A US 148726D A US148726D A US 148726DA US 148726 A US148726 A US 148726A
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- US
- United States
- Prior art keywords
- center
- section
- vessels
- boards
- improvement
- 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
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- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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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
- Figure 1 of the drawings is a representation of a longitudinal sectional view of my device with center-board down.
- Fig. 2 is a longitudina-l sectional view of the same with centerboard raised.
- Fig. 8 is a transverse sectional vlew of the same.
- This invention has relation to center-boards for boats and vessls of all sizes 5 and it consists in an adjustable sectional center-board, which is composed of a main or upper section, having a second or lower section applied in it by means of slots and guide-pins, in combination with a central rod, which is pivoted to said lower section, passed up through the keelson and stanchion, and provided with a screwthreaded hand-wheel on its upper end, as will be more fully explained hereinafter.
- A designates the keel of a boat; B, the garboard; O, the keelson, and D the stanchion.
- a slot, a is made vertically and longitudinally in the center of the keel, and from the middle of the' length of this slot a metal tube, b, rises vertically through the stanchion, and is applied watertight thereto.
- E designates the main section of the center-board, which section is recessed to receive in it the section E', and it is also slotted at c c to receive through it the pins e e,
- the section E is shorter and thinner than the section E, into which it is received, and this section is slotted at ff to receive through it pins t t', by which it is connected to the section E.
- the pins t' z' may be surrounded by anti-friction rings, which will prevent the section E from binding, and will allow it to play freely up and down.
- the section E is pivoted at the middle of its length to the lower end of a rod, G, which passes through the section E, and through the tube b, and receives on its screwthreaded end an adjusting-wheel g. By means of this wheel the center-board sections can both be brought within the slot a in the keel A, and also adjusted so as to expose more or less surface below the keelson, as circumstances require.
- My improved center-board is applicable to the sides of keels by using metallic guards therefor.
- a center-board composed of sections E E', applied one within the other, both of which are vertically adjustable, while maintaining their horizontal positions by means of a single rod, G, substantially as described.
Description
l. MANSIR.
Center-Boards for Vessels.
N 148 726, PatentedMarchl7.1874.
Igp/
' INVENTOR ATTORNEYS.
Un'rrnn S'rA'rns PATENT Grrrcn.
JOB Massin, or RICHMOND, MAINE.
MPRVEMENT IN CENTERBQARDS FOR VESSELS.
Specification forming part of Letters Patent No. i, dated March 17, 1874 application led January 24, 1874.
To alt whom t may concern:
Be it known that I, JOB MANsin, of Richmond, in the county of Sagadahoc and State of Maine, have invented a new and valuable Improvement in Center-Boards for Boats and Vessels of all sizes; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures .of reference marked thereon.
Figure 1 of the drawings is a representation of a longitudinal sectional view of my device with center-board down. Fig. 2 is a longitudina-l sectional view of the same with centerboard raised. Fig. 8 is a transverse sectional vlew of the same.
This invention has relation to center-boards for boats and vessls of all sizes 5 and it consists in an adjustable sectional center-board, which is composed of a main or upper section, having a second or lower section applied in it by means of slots and guide-pins, in combination with a central rod, which is pivoted to said lower section, passed up through the keelson and stanchion, and provided with a screwthreaded hand-wheel on its upper end, as will be more fully explained hereinafter.
The following is a description of my improvement In the annexed drawings, A designates the keel of a boat; B, the garboard; O, the keelson, and D the stanchion. A slot, a, is made vertically and longitudinally in the center of the keel, and from the middle of the' length of this slot a metal tube, b, rises vertically through the stanchion, and is applied watertight thereto. E designates the main section of the center-board, which section is recessed to receive in it the section E', and it is also slotted at c c to receive through it the pins e e,
by which it is attached to the keel A. The section E is shorter and thinner than the section E, into which it is received, and this section is slotted at ff to receive through it pins t t', by which it is connected to the section E. The pins t' z' may be surrounded by anti-friction rings, which will prevent the section E from binding, and will allow it to play freely up and down. nThe section E is pivoted at the middle of its length to the lower end of a rod, G, which passes through the section E, and through the tube b, and receives on its screwthreaded end an adjusting-wheel g. By means of this wheel the center-board sections can both be brought within the slot a in the keel A, and also adjusted so as to expose more or less surface below the keelson, as circumstances require.
The pivotal connection of the center-board to the rod G allows this board to vibrate longitudinally, and the slotted connections of the sections E E allow them to play freely up and down.
My improved center-board is applicable to the sides of keels by using metallic guards therefor.
What I claim as new, and desire t0 secure by Letters Patent, is-
A center-board composed of sections E E', applied one within the other, both of which are vertically adjustable, while maintaining their horizontal positions by means of a single rod, G, substantially as described.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
JOB MANSIR.
lVitnesses J. W. SPAULDING, WM. H. STUART.
Publications (1)
Publication Number | Publication Date |
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US148726A true US148726A (en) | 1874-03-17 |
Family
ID=2218139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US148726D Expired - Lifetime US148726A (en) | Improvement in center-boards for vessels |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612129A (en) * | 1947-10-14 | 1952-09-30 | Loren P Burch | Device for varying curvature of boat keels |
US20090288586A1 (en) * | 2007-02-08 | 2009-11-26 | Baruh Bradford G | Adjustable keel for a sailboat |
-
0
- US US148726D patent/US148726A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612129A (en) * | 1947-10-14 | 1952-09-30 | Loren P Burch | Device for varying curvature of boat keels |
US20090288586A1 (en) * | 2007-02-08 | 2009-11-26 | Baruh Bradford G | Adjustable keel for a sailboat |
US20110297064A1 (en) * | 2007-02-08 | 2011-12-08 | Baruh Bradford G | Adjustable keel for a sailboat |
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