US141439A - Improvement in oyster-dredges - Google Patents
Improvement in oyster-dredges Download PDFInfo
- Publication number
- US141439A US141439A US141439DA US141439A US 141439 A US141439 A US 141439A US 141439D A US141439D A US 141439DA US 141439 A US141439 A US 141439A
- Authority
- US
- United States
- Prior art keywords
- dredge
- improvement
- dredges
- oyster
- lever
- 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
- 241000237502 Ostreidae Species 0.000 description 8
- 235000020636 oyster Nutrition 0.000 description 8
- 239000002965 rope Substances 0.000 description 6
- 241000282596 Hylobatidae Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K80/00—Harvesting oysters, mussels, sponges or the like
Definitions
- a socket is made into the deck of the vessel, or a box-plate fastened to the deck having a socket, in which the hinge-joint bolt is inserted, and in which the bolt can be made to revolve.
- the upper part of the bolt has a flange resting upon vthe base or deck of the vessel, above which is a hinge-joint having its counterpart with the lever, which is constructed either of wood or metal, having a pulley over 'which the rope or cable passes from the windlass to the dredge.
- the second part of our invention relates to an oyster-dredge, C and D, Fig. l and Figs. 3, 4, and 5, constructed as follows:
- the frame-work is made of two metallic bars bent in the form of a loop, coming together at the top and fastened together.
- the bottoms are spread apart, and cross-bars attached on either side, upon which are attached rows of metallic teeth, which together form the mouth of the dredge, Fig. l, C.
- a ch ain-bag is constructed, of any desirable size, Fig. l, C, and Fig. 4.'
- a device for closing and opening the-dredge so as to discharge the oysters at the bottom, Fig. l, C, and d, Figs. 3, 4, and 5.
- This opening and closing device is constructed as follows:
- the rope or cable, being coiled upon the spool of the windlass, is passed over the lever, through the pulley, and attached to the dredge.
- rBhe dredge is thrown over the slide of the vessel, and cable paid out so as to permit the dredge to drag at the bottom.
- the dredge being held in position by the ratchet-pawl, and being dragged upon the bottom by means of the teeth, take up the oysters, which are forced in the dredge till filled, when thesame is to be drawn up by the windlass.
- the top of the dredge strikes the lever it is raised above and swung over the rail of the vessel to any portion of the deck within range of the lever.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Food-Manufacturing Devices (AREA)
Description
` 2Sheets-Sheet2. W. C HORNFAGER & M. FITZGIBBUNS.
l Oyster Dredges.
N0, 141,439, PatentedAugust5,1873.`
ErrEn STATES PATENT OFFICE.
WILLIAM C. ORNFAGER AND MAURICE FITZ GIBBONS, NEW YORK, N. Y.
IMPROVEMENT IN OVSTER-DREDGES.
Specication forming part of Letters Patent No. 141,439, dated August 5, 1873; application filed December 20, 1872.
To all whom it may concern:
Be it known that we, WILLIAM C. HORN- YPAGER and MAURICE FITZ GIBBoNs, of the city, county, and State of New York, have invented certain new and useful Improvements in the Making or Constructing Machinery or Apparatus for Dredging Oysters; and we hereby declare that the following is a clear, full, and exact description of the same, reference being had to the accompanying drawings making part thereof, and in which- Figure l represents a transverse sectional view of a vessel' having our improvement,
vconsisting of windlass A, swiveljointed ro- 'ta-ting arm or lever B, dredge C, and rope or swivel-jointed arm or lever, B, Figs. l and 2,
extending from the center of the deck of the vessel to and over the side rail, constructed as follows:
A socket is made into the deck of the vessel, or a box-plate fastened to the deck having a socket, in which the hinge-joint bolt is inserted, and in which the bolt can be made to revolve. The upper part of the bolt has a flange resting upon vthe base or deck of the vessel, above which is a hinge-joint having its counterpart with the lever, which is constructed either of wood or metal, having a pulley over 'which the rope or cable passes from the windlass to the dredge.
The second part of our invention relates to an oyster-dredge, C and D, Fig. l and Figs. 3, 4, and 5, constructed as follows:
The frame-work is made of two metallic bars bent in the form of a loop, coming together at the top and fastened together. The bottoms are spread apart, and cross-bars attached on either side, upon which are attached rows of metallic teeth, which together form the mouth of the dredge, Fig. l, C. Upon this frame a ch ain-bag is constructed, of any desirable size, Fig. l, C, and Fig. 4.' At the bottom of the dredge so far constructed is attached a device for closing and opening the-dredge so as to discharge the oysters at the bottom, Fig. l, C, and d, Figs. 3, 4, and 5. This opening and closing device is constructed as follows:
It consists of two metallic plates, curved at the ends, counterparts of each other, and joined together at each end-by a rivet, forming a movable joint. Upon one of the plates are projections, which, when closed, pass through openings in the counterpart. These projections are for the admission of a bolt. Upon the other plate are like projections having open ings. Through these openings a bolt is passed having prongs attached upon one side, so arranged as to pass through the opening of the projections on the counterpart. bolt is placed a spiral or other spring, which, by its tension, forces the pronged bolt into the openings, and retains them in that position.
Having described the nature, object, and construction of our invention and improvement, we proceed to describe its operation, as
follows:
The rope or cable, being coiled upon the spool of the windlass, is passed over the lever, through the pulley, and attached to the dredge. rBhe dredge is thrown over the slide of the vessel, and cable paid out so as to permit the dredge to drag at the bottom. The dredge being held in position by the ratchet-pawl, and being dragged upon the bottom by means of the teeth, take up the oysters, which are forced in the dredge till filled, when thesame is to be drawn up by the windlass. When the top of the dredge strikes the lever it is raised above and swung over the rail of the vessel to any portion of the deck within range of the lever. The bolt at the bottom of the dredge is then withdrawn. The bottom is opened by the press- Upon this Y 2. The combination ot' wndlass A, Fig. 1, and swivel-jointed arm or lever B, Fig. 1.
3. The combination of Windlass A, swiveljointed lever B, and dredge C, substantially as and for the uses and purposes hereinbefore set forth.
WILLIAM C. HORNFAGER. MAURICE FITZ GIBBONS.
Witnesses:
HARRY COLEMAN, WM. S. HENDERSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US141439A true US141439A (en) | 1873-08-05 |
Family
ID=2210852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US141439D Expired - Lifetime US141439A (en) | Improvement in oyster-dredges |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US141439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417121A (en) * | 1945-04-02 | 1947-03-11 | F Mansfield & Sons Company | Dredge-hoisting apparatus |
| US2648918A (en) * | 1950-12-15 | 1953-08-18 | Mazzella Antonio | Oyster dredge hoist gear |
-
0
- US US141439D patent/US141439A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417121A (en) * | 1945-04-02 | 1947-03-11 | F Mansfield & Sons Company | Dredge-hoisting apparatus |
| US2648918A (en) * | 1950-12-15 | 1953-08-18 | Mazzella Antonio | Oyster dredge hoist gear |
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