US38356A - Improved cat-block for freeing a ship s anchor - Google Patents
Improved cat-block for freeing a ship s anchor Download PDFInfo
- Publication number
- US38356A US38356A US38356DA US38356A US 38356 A US38356 A US 38356A US 38356D A US38356D A US 38356DA US 38356 A US38356 A US 38356A
- Authority
- US
- United States
- Prior art keywords
- block
- anchor
- cat
- freeing
- ship
- 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
- 239000002965 rope Substances 0.000 description 8
- 238000007599 discharging Methods 0.000 description 4
- 210000003414 Extremities Anatomy 0.000 description 2
- 210000001847 Jaw Anatomy 0.000 description 2
- 241000282890 Sus Species 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
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/22—Handling or lashing of anchors
Definitions
- A denotes the cat-head of a vessel
- B is the usual cat-block sus pended from such cat-head in the ordinary manner by a rope
- C roved about the sheaves of the block and the usual sheaves of the cathead, and so as to enable the block to 'be raised by means of such rope or lowered by slackening the rope.
- D D lever ring-hooks
- D D whose lower ends arescarfed, so as to mutually lap on or over one another when the hooks are closed, as shown in Fig. 2.
- Each of these hooks is a lever, formed as represented in Fig.
- My said apparatus may also be suspended from the davit of a vessel, and in such case will answer well in lowering and discharging a boat therefrom.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Emergency Lowering Means (AREA)
Description
UNITED STATES PATENT OEEICE.
GEORGE W. DUNCAN, OF BATH, MAINE, ASSIGNOR TO HIMSELF AND CHARLES DAVENPORT, OF SAME PLACE.
IMPROVED CAT-BLOCK FOR FREEING A SHIPS ANCHOR.
Speciiication forming part of Letters Patent No. 38,356, dated April 28, 1863.
To @ZZ wha/2t it may concern.-
Be it known that I, GEORGE IV. DUNCAN, a'citizen of the United States of America, and a resident of Bath, in the county of Sagadahoc and State of Maine, have invented a new or Improved Apparatus for Discharging an Anchor from the Cat-Head of a Vessel; and' I do hereby declare the same to be fully described in the following specification and rep-` resented in the accompanying drawings, of which- Figure l is a perspective view of my said invention as suspended from a cat-head and as having its lever ring-hooks open ready for the reception of the ring of an anchor. Fig. 2 is a view of the apparatus as supporting an anchor.
The nature of my invention consists in the combination cfa tackle-block and certain lever hooks and chains, the same being as represented in the drawings, and arranged substantially as hereinafter described.
In the drawings, A denotes the cat-head of a vessel, while B is the usual cat-block sus pended from such cat-head in the ordinary manner by a rope, C, roved about the sheaves of the block and the usual sheaves of the cathead, and so as to enable the block to 'be raised by means of such rope or lowered by slackening the rope. In the lower part of the block there are hinged two lever ring-hooks, D D, whose lower ends arescarfed, so as to mutually lap on or over one another when the hooks are closed, as shown in Fig. 2. Each of these hooks is a lever, formed as represented in Fig. S-that is to say, it has two arms, a b, projected from a pivot or fulcrum piece, c, provided with a hole, d, the said hole being for the reception of a joint-pin, e, which goes through the hin ge-ears extending from the block. To the outer extremity of each arm a the lower end of one of the chains E E is affixed, such chain being suspended from the cat-head, as shown in the drawings. On hoisting the cat-block so as to slacken the chains E E the weight of the lever-arms a, a will close the jaws or arms b b, and, in case the ringv of an anchor may have been previously placed between them, they will hold the anchor suspended, as shown in Fig. 2. By lowering the cat-block and anchor their weight when-thrown upon the chains E E will cause them to draw on the arms a a and so as to force asunder the arms b b and drop or discharge the anchor from them.
My said apparatus may also be suspended from the davit of a vessel, and in such case will answer well in lowering and discharging a boat therefrom.
I claim- 'Ihe combination of the tackle-block B and the lever ring-hooks D D and their chains E E, the said block to be suspended from a cat-` head or a davit by means of a ila-l1 or rope, C, and the whole to operate substantially in manner and for the purpose as specified.
G. W. DUNCAN.
Witnesses:
Clins. DAVENPORT, AMMI R. MITCHELL.
Publications (1)
Publication Number | Publication Date |
---|---|
US38356A true US38356A (en) | 1863-04-28 |
Family
ID=2107928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US38356D Expired - Lifetime US38356A (en) | Improved cat-block for freeing a ship s anchor |
Country Status (1)
Country | Link |
---|---|
US (1) | US38356A (en) |
-
0
- US US38356D patent/US38356A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO743639L (en) | ||
US1507706A (en) | Safety grapple | |
US38356A (en) | Improved cat-block for freeing a ship s anchor | |
US28478A (en) | Suspending boats | |
US26094A (en) | Hunter davidson | |
US29064A (en) | Lowering and detaching ships boats | |
US19666A (en) | Arrangement op devices for lowering and detaching boats | |
US41726A (en) | Improved mode of raising sunken vessels | |
US1559959A (en) | Cable sling, jam and trip hook | |
US28965A (en) | Apparatus for working anchors | |
US67989A (en) | George h | |
US626350A (en) | Stevedore s lifting-hooks | |
US45649A (en) | Improved anchor-tripper | |
US30698A (en) | Attaching and detaching ships boats | |
US32408A (en) | John m | |
US206100A (en) | Improvement in boat-detaching apparatus | |
US9594A (en) | N-peters | |
US1204605A (en) | Device for locating and raising sunken vessels. | |
US33413A (en) | William h | |
US1312473A (en) | Ship-salvaging method and apparatus | |
US52143A (en) | Island | |
US492496A (en) | Tackle-block | |
US7044522B2 (en) | Passive capture slip-proof chain handling hook | |
US137325A (en) | Improvement in means for detaching boats | |
US242541A (en) | Safety jaw-block and boat-detacher |