US298545A - Boom and gaff for vessels - Google Patents
Boom and gaff for vessels Download PDFInfo
- Publication number
- US298545A US298545A US298545DA US298545A US 298545 A US298545 A US 298545A US 298545D A US298545D A US 298545DA US 298545 A US298545 A US 298545A
- Authority
- US
- United States
- Prior art keywords
- gaff
- boom
- vessels
- jaws
- frame
- 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
- 210000001847 Jaw Anatomy 0.000 description 16
- 240000001439 Opuntia Species 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
- B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
- B63H8/21—Wishbones
Definitions
- the object of this invention in common with others of its class, is to reduce in the swinging motion of a boom or gaff friction between the lower end thereof and the mast.
- Figure I is a side View of a part of a mast and my improved gaff.
- Fig. II is a top View of Fig. I.
- Fig. III is a View of the gaff as seen from the lower end.
- Fig. IV is a section taken through line :0 at, Fig. II.
- A is the mast, and B the spar which forms the main portion of the The jaws of the gaff are denoted byO O.
- D is the metallic frame, situated in a recess between the jaws of the gaff and supported by and adapted to swing on the fixed bolts a a, which pass through the said jaws.
- rollers E E are rollers located within the frame D, and fitted to revolve freely on the upright spindles b b. .It will be seen that the position of the rollers E is not affected by any change in angle of the gaff, as the frame D turns on the bolts a a.
- booms have-been constructed with a frame confined between the jaws con taining rollers arranged one above the other,
- an open frame has been suspended on fixed bolts or trunnions in'a recess formed between the jaws, and provided with cylindrical rollers that turn on upright axes.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Jib Cranes (AREA)
- Body Structure For Vehicles (AREA)
Description
(No Model.)
E. BANGS.
BOOM AND GAFF FOR VESSELS.
Patented May 13, 1884.
-W I T NEEEEEJ" K m/M ELIJAH BANGS, OF PROVINGETOWVN, MASSACHUSETTS.
BOOM AND GAFF FOR VESSELS.
SPECIFICATION forming part of Letters Patent No. 298,545, dated May 13, 1884.
Application filed January 12, 1884. (No model.)
To aZZ whom it may concern.-
Be it known that I, ELIJAH BANGS, of Provincetown, county of Barnstable, and State of Massach usetts,have invented certain Improvements in Booms and Gaffs for Vessels, of which the following is a specification. v
The object of this invention, in common with others of its class, is to reduce in the swinging motion of a boom or gaff friction between the lower end thereof and the mast.
In the accompanying drawings, forming a part hereof, Figure I is a side View of a part of a mast and my improved gaff. Fig. II is a top View of Fig. I. Fig. III is a View of the gaff as seen from the lower end. Fig. IV is a section taken through line :0 at, Fig. II.
A is the mast, and B the spar which forms the main portion of the The jaws of the gaff are denoted byO O.
D is the metallic frame, situated in a recess between the jaws of the gaff and supported by and adapted to swing on the fixed bolts a a, which pass through the said jaws.
E E are rollers located within the frame D, and fitted to revolve freely on the upright spindles b b. .It will be seen that the position of the rollers E is not affected by any change in angle of the gaff, as the frame D turns on the bolts a a.
Iam aware that booms have-been constructed with a frame confined between the jaws con taining rollers arranged one above the other,
the said rollers having a curved face to fit the circular mast, and that gaffs have been used with a frame containing two rollers with vertieal spindles, the said frame forming the jaws of the gaff; but I am not aware that prior to my invention. an open frame has been suspended on fixed bolts or trunnions in'a recess formed between the jaws, and provided with cylindrical rollers that turn on upright axes.
I therefore claim In combination with a boom 0r gaff having a recess formed between the jaws, an open frame supported in the said recess, which swings loosely on fixed bolts or rods extending through the said jaws, and two cylindrical friction-rollers adapted to turn on upright bolts extending through the said frame, substantially as and for the purpose specified.
ELIJAH BANGS. W'itnesses;
CHAS. B. CASSADY, DANL. FISHER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US298545A true US298545A (en) | 1884-05-13 |
Family
ID=2367726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US298545D Expired - Lifetime US298545A (en) | Boom and gaff for vessels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US298545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798154A (en) * | 1985-11-22 | 1989-01-17 | Enzo Scaglia | Coupling element of the boom to the mast of a small sailing craft |
-
0
- US US298545D patent/US298545A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798154A (en) * | 1985-11-22 | 1989-01-17 | Enzo Scaglia | Coupling element of the boom to the mast of a small sailing craft |
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