CA1071933A - Releasable boat anchor - Google Patents
Releasable boat anchorInfo
- Publication number
- CA1071933A CA1071933A CA319,254A CA319254A CA1071933A CA 1071933 A CA1071933 A CA 1071933A CA 319254 A CA319254 A CA 319254A CA 1071933 A CA1071933 A CA 1071933A
- Authority
- CA
- Canada
- Prior art keywords
- anchor
- shank portion
- respect
- fluke body
- pin
- 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
Links
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- Piles And Underground Anchors (AREA)
Abstract
"IMPROVED RELEASABLE BOAT ANCHOR"
"Abstract Of The Disclosure"
Releasable anchor has V-shaped flukes with two sets of stops;
has arm journaled to flukes; has plate with a pair of pins slidable on arm; has cam with rope attachment journaled to arm; cam controls up and down position of plate; one pin operates in arm slot;
other pin operates against one or other of the sets of stops.
On anchor drag position the cam is in line with arm; cam and arm make angle of about 60 degrees with flukes; plate is down and one pin is engaged with a set of stops on flukes; other pin in cam slot is furthest from cam pivot.
On anchor release position the cam pivot to 99 degrees position in respect to arm; pin in arm slot closest to cam pivot; plate is up and the other pin moves over and free of stops; arm pivot to about in line position with flukes; cam also pivots to in-line position with arm.
"Abstract Of The Disclosure"
Releasable anchor has V-shaped flukes with two sets of stops;
has arm journaled to flukes; has plate with a pair of pins slidable on arm; has cam with rope attachment journaled to arm; cam controls up and down position of plate; one pin operates in arm slot;
other pin operates against one or other of the sets of stops.
On anchor drag position the cam is in line with arm; cam and arm make angle of about 60 degrees with flukes; plate is down and one pin is engaged with a set of stops on flukes; other pin in cam slot is furthest from cam pivot.
On anchor release position the cam pivot to 99 degrees position in respect to arm; pin in arm slot closest to cam pivot; plate is up and the other pin moves over and free of stops; arm pivot to about in line position with flukes; cam also pivots to in-line position with arm.
Description
~7~L~33 SPECIFICATION
My invention relates to anchors.
The principal object of my invention is to provide an improved releasable boat anchor of the double-acting type.
The foregoing object of my invention and the advantages thereof will become apparent during the course of the following description, taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a side elevational view of a releasable anchor embodying my invention shown in drag position;
Figs. 2-4 are, respectively, opposite end elevational and top plan views of said embodiment Fiy. 5 is a vertical sectional v-iew of the structure of Fig. 4 taken on the line 5-5 thereof;
Fig. 6 is a vertical section view of the structure of Fig. 1 taken on the line 6-6 thereof;
Figs. 7-9 are views corresponding to Figs. 1, 2 and 5, respect-ively, of said embodiment shown in an intermediate release position;
and Figs. 10-12 are views corresponding to Figs. 1~ 2 and 5, respect-ively, of said embodiment shown in full release position.
Referring to the drawings in greater detail, 10 generally designates said embodiment which comprises a fluke body 12 and a shank pivotally connected to said fluke body 12 via a pivot pin 21 held in said fluke body 12. Sa;d shank is formed of two portions9 an inter-mediate portion 14 and an outer portion 16.
Said fluke body 12 is made of a flat plate 18 provided with divergent portions or flukes, as shown, for digging into the bottom of the body of water in which the boat is used. Said fluke body 12 ~ ;
includes outside and inside walls 17 and 19, respectively, Formed at the edges of said plate 18; said walls 17 and 19 are perpendicularly disposed in respect to said plate 18. The outside walls 17 diverge .,........................................ ~'.
9 3 ~
with the divergent portions or flukes as they extend toward the digging end of the fluke body 12. Spaced apart apertures, as at 29, are formed in said walls and a slot 27 is formed in said plate 18 to accomodate said pivot pin 21. The inside walls 19 are parallel to each other and spaced apart to accomodate pivotal movement of said shank and the rear portion of plate 18 is provided with a slot 25 for this same purpose.
A pair of arcuately shaped stops 23 are formed on the inside faces of said inside walls 19. Said stops 23 have two sets of shoulders disposed -above and below said pivot pin 21 and facing the digging end of said fluke body 12.
Said intermediate portion 14 consists of a pair of spaced apart plates 26 and a center plate 32 disposed between said plates 26 and axially moveable in respect there~o. A bearing 20 is affixed to the Iower ends of the plates 26 and disposed between said inside walls 19 Sald bearing 20 is fitted over said pivot pln 21 so as to be rotatable thereon, whereby said shank portion 14 can pivot in respect to the fluke body 12. The plates 26 are provided with axial alots 28 and 30 at their inner and outer ends, respectively. The inner and outer ends of the plate 32 is provided with laterally projecting pins 34 and 36 which are moveably disposed in said slots 28 and 30, respectively.
Said intermediate and outer shank portions 14 and 16, respectLvely, are pivotally connected together via a pivot pin 38 ~astened in apertures in the outer ends of said plates 26. Said outer shanlc portion 16 ls formed in three parts, in the instance shown, viz., a pair of spaced apart plates 41 and a center bar 40, all fastened together by fasteners 43.
The fastened together plates 40 and bar 41 form a handle for the anchor 10 and serve as a means~ via an aperture 44 in the outer end thereof, for tying the anchor to an anchor line, as at 45.
lhe inner end of said center bar 40 is provided with an aperture therein through which said pivot pin 38 extends for pivotally joining together said intermediate and outer shank portions 14 and 16, respect-ively. The inner ends of the plates 41 and substantially circular in ~ 9 3 3 shape and have central apertures 47 and circular slots 42 formed therein, the radii for said slots 42 being the centers of said apertures 47. The aforementioned laterally projecting pins 36 which are fastened to the center plate 32 project through the slots 42 so that the movement of said center plate 32 relative to the plates 26 and to the stops 23 is controlled by the position of the outer shank portion 16 relative to the intermediate shank portion 14. The reason for this is that the slots 42 are eccentrically disposed iTI respect to the pivot pin 38 as can be seen in the drawings, particularly Figs. 1, 5, 7, 8, 10 and 12. Thus, when the intermediate and outer shank portions 1~l and 16~ respectively, are aligned with each other in an anchor drag position, as shown in Figs. 1-6~ the pivot pin 38 and pin 36 are far~hest apart; and when the intermediate and outer shank portions 14 and 16, respectively, are at right angles to each other in an intermediate release position, as shown in Figs~ 7-9, the pivot pin 38 and pin 36 are closest to each other.
~his means that in Figs. l-6 the center plate 32 is held in its lowered position by the action of the slot 42 on the pin 36 and thus the pin 34 is moved to its lowered position in the slots 28 and held against a set of shoulders on the stops 23; in this condition the intermediate shank portion 14 is prevented from rotating in respect to the fluke body 12.
In Figs. 7-9 the center plate 26 is held in its raised position by the action of the slot 42 on the pin 36 and thus the pln 34 is moved to its raised position in the slots~28 and held above and free of the stops 23;
in this condition the intermediate shank portion 14 is free to rotate in respect to the fluke body 12.
In operation of said anchor 10, the same is a double-acting anchor in that said anchor 10 will dig into the sea bottom in either of diametrically opposite directions depending upon how the anchor 10 strikes said sea bottom. ~n other words, the fluke body 12 can pivot a respect to said intermediate shank portion 14 between two different anchor drag positions; said fluke body 12 is capable of pivoting approx-imately 120 degrees in respect to said shank portion 1~ when moving ~ L~'71933 between said two anchor drag positions. For example, Figs. 1-6 illustrate an anchor drag position for said anchor 10 which is capable of holding a boat tending to move from left to right in reference to Figo 1~ In this anchor drag position the two shank portions 14 and 16 are axially aligned and the~Eluke body 12 makes about a 60 degree angle with said shank and the pin 34 is disposed against a set of shoulders on said stops 23 so that said shank and fluke body 12 are locked against pivotal move-ment relative to each other. Were the boat tending to move from right to left then the fluke body 12 would be pointing to the left (rather than to the right as shown in Flg. l) and the shank would extend upwardly and to the left (rather than upwardly and to the right as shown in Fig. l~
and the pin 34 would be disposed against the opposite set of shoulders on said stops 23. The pin 34 is disposed in the lowermost position in the slots 28 and held agalnst the stops 23 due to the action of the cam slots 42 on the pin 36 as described.
In this anchor drag position for the anchor 10 with the shank portions 14 and 16 axially aligned and the pin 34 against the stops 23 the fluke body 12 is locked against rotation and the boat is held anchored where the boat user desires. When the boat user desires to lift anchor and get underway he merely has to hoist up the anchor lO, In those relatively rare instances when the anchor lO may get caught in rocks or other obstructions the boat user does not have to cut the anchor line 45 and lose the anchor 10 as is the case with most commercially available boat anchors on the market todayO Assume that the anchor lO, while in the position shown for it in Figs. 1-6~ is caught on rocks so that said anchor lO cannot be pulled aboard the boat. In this event the boat user merely has to propel said boat in a diametrically opposite direction from which it was at anchor ~most usually in the direction of the current or wind) so that said boat moves from right to left in reference to Fig. lo I~ this reverse movement of said boat an intermediate release position for said anchor lO is first attained in which the shank portion 16 i9 disposed at a substantially right angle in respect to the shank portion 14. This ~ 33 intermediate release position for said anchor 10 is illustrated in Figs.
7-9. The pivotal movement of said shank portion 16 in respect to the shank portion 14 into the position shown in Figs~ 7-9 moves the pin 36 to an end of the cam slots 42 where the pin 36 is positioned closest to the pivot pin 38 dué to thé eccentricity of the cam slots 42. The pin 36 is then positioned near the uppermost end of the slot:s 30 which causes the pin 34 to be raised above the stops 23 and allows the shank portion 14 to rotate in respect to said fluke body 12 in a counterclockwise dilrection in respect to Figs. 7 and 9. Continued movement of ~he boat in the release direction stated causes the anchor 10 to move into its fuLl release position as shawn in Figs. 10-12 in which it can be seen that said intermedlate shank portion 14 has rotated counterclockwise in respect to said fluke body 12 and the shank portion 16 has moved into axial alignment with the shank portion }4. In this full release position of the anchor 10 the pin 3~ has moved behind the stop 23 and the included ~ngle between said intermediate shank portion 14 and the fluke body 12 is about 110 degrees. Continued movement of the boat in this release direction will pull the anchor 10 free of the rocks or other obstructions in which it was captured. The anchor line 45 can then be pulled in to pull the anchor 10 aboard the boat.
It will thus be seen that there has been provided by my invention an improved releasable boat anchor of the double-acting type in which the oh~ect hereinabove set forth, together with many thoroughly practical advantages~ has been successfully achieved. While a preferred embodiment of my invention has been showed and described, it is to be understood that variations and changes may be resorted to without departing from the spirit of my invention as defined by the appended claims~ As one example, the outer shank portion 16 can be fabr~cated in one piece in which case the apertures ~7 would be eliminated and the pin pivot 38 would be made to extend entirely through said outer shank portion 16 from face to face thereof.
My invention relates to anchors.
The principal object of my invention is to provide an improved releasable boat anchor of the double-acting type.
The foregoing object of my invention and the advantages thereof will become apparent during the course of the following description, taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a side elevational view of a releasable anchor embodying my invention shown in drag position;
Figs. 2-4 are, respectively, opposite end elevational and top plan views of said embodiment Fiy. 5 is a vertical sectional v-iew of the structure of Fig. 4 taken on the line 5-5 thereof;
Fig. 6 is a vertical section view of the structure of Fig. 1 taken on the line 6-6 thereof;
Figs. 7-9 are views corresponding to Figs. 1, 2 and 5, respect-ively, of said embodiment shown in an intermediate release position;
and Figs. 10-12 are views corresponding to Figs. 1~ 2 and 5, respect-ively, of said embodiment shown in full release position.
Referring to the drawings in greater detail, 10 generally designates said embodiment which comprises a fluke body 12 and a shank pivotally connected to said fluke body 12 via a pivot pin 21 held in said fluke body 12. Sa;d shank is formed of two portions9 an inter-mediate portion 14 and an outer portion 16.
Said fluke body 12 is made of a flat plate 18 provided with divergent portions or flukes, as shown, for digging into the bottom of the body of water in which the boat is used. Said fluke body 12 ~ ;
includes outside and inside walls 17 and 19, respectively, Formed at the edges of said plate 18; said walls 17 and 19 are perpendicularly disposed in respect to said plate 18. The outside walls 17 diverge .,........................................ ~'.
9 3 ~
with the divergent portions or flukes as they extend toward the digging end of the fluke body 12. Spaced apart apertures, as at 29, are formed in said walls and a slot 27 is formed in said plate 18 to accomodate said pivot pin 21. The inside walls 19 are parallel to each other and spaced apart to accomodate pivotal movement of said shank and the rear portion of plate 18 is provided with a slot 25 for this same purpose.
A pair of arcuately shaped stops 23 are formed on the inside faces of said inside walls 19. Said stops 23 have two sets of shoulders disposed -above and below said pivot pin 21 and facing the digging end of said fluke body 12.
Said intermediate portion 14 consists of a pair of spaced apart plates 26 and a center plate 32 disposed between said plates 26 and axially moveable in respect there~o. A bearing 20 is affixed to the Iower ends of the plates 26 and disposed between said inside walls 19 Sald bearing 20 is fitted over said pivot pln 21 so as to be rotatable thereon, whereby said shank portion 14 can pivot in respect to the fluke body 12. The plates 26 are provided with axial alots 28 and 30 at their inner and outer ends, respectively. The inner and outer ends of the plate 32 is provided with laterally projecting pins 34 and 36 which are moveably disposed in said slots 28 and 30, respectively.
Said intermediate and outer shank portions 14 and 16, respectLvely, are pivotally connected together via a pivot pin 38 ~astened in apertures in the outer ends of said plates 26. Said outer shanlc portion 16 ls formed in three parts, in the instance shown, viz., a pair of spaced apart plates 41 and a center bar 40, all fastened together by fasteners 43.
The fastened together plates 40 and bar 41 form a handle for the anchor 10 and serve as a means~ via an aperture 44 in the outer end thereof, for tying the anchor to an anchor line, as at 45.
lhe inner end of said center bar 40 is provided with an aperture therein through which said pivot pin 38 extends for pivotally joining together said intermediate and outer shank portions 14 and 16, respect-ively. The inner ends of the plates 41 and substantially circular in ~ 9 3 3 shape and have central apertures 47 and circular slots 42 formed therein, the radii for said slots 42 being the centers of said apertures 47. The aforementioned laterally projecting pins 36 which are fastened to the center plate 32 project through the slots 42 so that the movement of said center plate 32 relative to the plates 26 and to the stops 23 is controlled by the position of the outer shank portion 16 relative to the intermediate shank portion 14. The reason for this is that the slots 42 are eccentrically disposed iTI respect to the pivot pin 38 as can be seen in the drawings, particularly Figs. 1, 5, 7, 8, 10 and 12. Thus, when the intermediate and outer shank portions 1~l and 16~ respectively, are aligned with each other in an anchor drag position, as shown in Figs. 1-6~ the pivot pin 38 and pin 36 are far~hest apart; and when the intermediate and outer shank portions 14 and 16, respectively, are at right angles to each other in an intermediate release position, as shown in Figs~ 7-9, the pivot pin 38 and pin 36 are closest to each other.
~his means that in Figs. l-6 the center plate 32 is held in its lowered position by the action of the slot 42 on the pin 36 and thus the pin 34 is moved to its lowered position in the slots 28 and held against a set of shoulders on the stops 23; in this condition the intermediate shank portion 14 is prevented from rotating in respect to the fluke body 12.
In Figs. 7-9 the center plate 26 is held in its raised position by the action of the slot 42 on the pin 36 and thus the pln 34 is moved to its raised position in the slots~28 and held above and free of the stops 23;
in this condition the intermediate shank portion 14 is free to rotate in respect to the fluke body 12.
In operation of said anchor 10, the same is a double-acting anchor in that said anchor 10 will dig into the sea bottom in either of diametrically opposite directions depending upon how the anchor 10 strikes said sea bottom. ~n other words, the fluke body 12 can pivot a respect to said intermediate shank portion 14 between two different anchor drag positions; said fluke body 12 is capable of pivoting approx-imately 120 degrees in respect to said shank portion 1~ when moving ~ L~'71933 between said two anchor drag positions. For example, Figs. 1-6 illustrate an anchor drag position for said anchor 10 which is capable of holding a boat tending to move from left to right in reference to Figo 1~ In this anchor drag position the two shank portions 14 and 16 are axially aligned and the~Eluke body 12 makes about a 60 degree angle with said shank and the pin 34 is disposed against a set of shoulders on said stops 23 so that said shank and fluke body 12 are locked against pivotal move-ment relative to each other. Were the boat tending to move from right to left then the fluke body 12 would be pointing to the left (rather than to the right as shown in Flg. l) and the shank would extend upwardly and to the left (rather than upwardly and to the right as shown in Fig. l~
and the pin 34 would be disposed against the opposite set of shoulders on said stops 23. The pin 34 is disposed in the lowermost position in the slots 28 and held agalnst the stops 23 due to the action of the cam slots 42 on the pin 36 as described.
In this anchor drag position for the anchor 10 with the shank portions 14 and 16 axially aligned and the pin 34 against the stops 23 the fluke body 12 is locked against rotation and the boat is held anchored where the boat user desires. When the boat user desires to lift anchor and get underway he merely has to hoist up the anchor lO, In those relatively rare instances when the anchor lO may get caught in rocks or other obstructions the boat user does not have to cut the anchor line 45 and lose the anchor 10 as is the case with most commercially available boat anchors on the market todayO Assume that the anchor lO, while in the position shown for it in Figs. 1-6~ is caught on rocks so that said anchor lO cannot be pulled aboard the boat. In this event the boat user merely has to propel said boat in a diametrically opposite direction from which it was at anchor ~most usually in the direction of the current or wind) so that said boat moves from right to left in reference to Fig. lo I~ this reverse movement of said boat an intermediate release position for said anchor lO is first attained in which the shank portion 16 i9 disposed at a substantially right angle in respect to the shank portion 14. This ~ 33 intermediate release position for said anchor 10 is illustrated in Figs.
7-9. The pivotal movement of said shank portion 16 in respect to the shank portion 14 into the position shown in Figs~ 7-9 moves the pin 36 to an end of the cam slots 42 where the pin 36 is positioned closest to the pivot pin 38 dué to thé eccentricity of the cam slots 42. The pin 36 is then positioned near the uppermost end of the slot:s 30 which causes the pin 34 to be raised above the stops 23 and allows the shank portion 14 to rotate in respect to said fluke body 12 in a counterclockwise dilrection in respect to Figs. 7 and 9. Continued movement of ~he boat in the release direction stated causes the anchor 10 to move into its fuLl release position as shawn in Figs. 10-12 in which it can be seen that said intermedlate shank portion 14 has rotated counterclockwise in respect to said fluke body 12 and the shank portion 16 has moved into axial alignment with the shank portion }4. In this full release position of the anchor 10 the pin 3~ has moved behind the stop 23 and the included ~ngle between said intermediate shank portion 14 and the fluke body 12 is about 110 degrees. Continued movement of the boat in this release direction will pull the anchor 10 free of the rocks or other obstructions in which it was captured. The anchor line 45 can then be pulled in to pull the anchor 10 aboard the boat.
It will thus be seen that there has been provided by my invention an improved releasable boat anchor of the double-acting type in which the oh~ect hereinabove set forth, together with many thoroughly practical advantages~ has been successfully achieved. While a preferred embodiment of my invention has been showed and described, it is to be understood that variations and changes may be resorted to without departing from the spirit of my invention as defined by the appended claims~ As one example, the outer shank portion 16 can be fabr~cated in one piece in which case the apertures ~7 would be eliminated and the pin pivot 38 would be made to extend entirely through said outer shank portion 16 from face to face thereof.
Claims (2)
- claim 1. a stop on said fluke body, an axially moveable member carried in said intermediate shank portion, a first pin carried on said moveable member for engaging said stop to lock said intermediate shank portion against pivotal movement relative to said fluke body, a second pin carried on said moveable member, a cam slot formed in said outer shank portion, said second pin disposed in said cam slot, said cam slot being eccentrically disposed in respect to the pivot axis for said outer shank member, the movement of said moveable member being under control of the pivotal movement of said outer shank portion relative to said intermediate shank portion.
3. An improved releasable boat anchor as claimed in claim 2. said stop having two operative shoulders formed thereon so that said intermediate shank portion and said fluke body are capable of pivoting relative to each other between two alternate anchor drag positions.
4. An improved releasable boat anchor as claimed in claim 3. said fluke body having twin flukes.
5. An improved releasable boat anchor as claimed in claim 3. said intermediate shank portion having an angular movement of the order of 120 degrees in respect to said fluke body in moving between said two alternate anchor drag positions.
6. An improved releasable boat anchor as claimed in claim 3. said intermediate shank portion having an angular movement of the order of 50 degrees in respect to said fluke body in moving between either of said anchor drag positions and said full release position.
7. An improved releasable boat anchor as claimed in - claim 2. said intermediate shank portion having a pair of plates between which said moveable member is disposed, said plates having first and second slots therein, said first and second pins being moveably disposed in said first and second slots, respectively, a bearing fast on the inner ends of said plates, said intermediate shank portion pivot-ally connected to said fluke body via said bearing, a pivot pin carried on the outer ends of said plates, said outer shank portion pivotally connected to said intermediate shank portion via said pivot pin, said pivot pin being eccentrically disposed in respect to said cam slot.
1. An improved releasable boat anchor of the double-acting type for anchoring a boat and for releasing itself from an underwater obstruction in which said anchor may be captured, said anchor comprising a fluke body and a shank, said shank comprising an intermediate portion pivotally connected to said fluke body and an outer portion pivotally connected to said intermediate portion, said outer shank portion having means for attaching an anchor line to said anchor, said anchor having an anchor drag position in which said intermediate shank portion is pivoted in one direction in respect to said fluke body, said intermediate shank portion locked against pivotal movement relative to said fluke body in said anchor drag position by movement of said outer shank portion into axial alignment with said inter-mediate shank portion, said anchor having an intermediate release position in which said intermediate shank portion is unlocked in respect to said fluke body, said unlocking being accomplished by the movement of said outer shank portion into a substantially right angle position with respect to said intermediate shank portion, and said anchor having a full release position in which said intermediate shank portion is pivoted in an opposite direction in respect to said fluke body, said outer shank portion being axially aligned with said intermediate shank portion in said full release position.
2. An improved releasable boat anchor as claimed in
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA319,254A CA1071933A (en) | 1979-01-08 | 1979-01-08 | Releasable boat anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA319,254A CA1071933A (en) | 1979-01-08 | 1979-01-08 | Releasable boat anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1071933A true CA1071933A (en) | 1980-02-19 |
Family
ID=4113262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA319,254A Expired CA1071933A (en) | 1979-01-08 | 1979-01-08 | Releasable boat anchor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1071933A (en) |
-
1979
- 1979-01-08 CA CA319,254A patent/CA1071933A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |