CA1221583A - Hand held sail - Google Patents
Hand held sailInfo
- Publication number
- CA1221583A CA1221583A CA000482228A CA482228A CA1221583A CA 1221583 A CA1221583 A CA 1221583A CA 000482228 A CA000482228 A CA 000482228A CA 482228 A CA482228 A CA 482228A CA 1221583 A CA1221583 A CA 1221583A
- Authority
- CA
- Canada
- Prior art keywords
- held
- sail
- hand
- luff
- leech
- 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
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
- B63H8/40—Arrangements for improving or maintaining the aerodynamic profile of sails, e.g. cambers, battens or foil profiles
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Tents Or Canopies (AREA)
Abstract
A hand-held sailing rig for wind propelled locomotion includes a sail having a slightly curved luff and a substantially semi-circular leech, stiffening means associated with the luff for stiffening the luff, and a boom extending from the mid-point of the luff to the mid-point of the leech. A user of the sail holds onto the boom, while standing windward of the sail, on skis, skates, a sailboard, or the like.
Description
21~i8~
The present invention relates to the field of sailing, either on water, on ice or on land, and more particularly to the field of hand-held sails.
The general concept of utilizing a hand-held sail for propulsion is not new, but has been in existence since at least as early as the late nineteenth century. Hand held sails are not like body supported sails which are tied to the user (see Canadian Patent No. 20371 (Nelson)). A hand-held sail is like the name implies, a sail, stiffened with spars and unstayed. It is solely hand-held, perhaps resting against the body of the user as well.
A good example of a hand-held sail is Canadian Patent No.
1,105,330 (Harpole). There is another type using a crusiform frame and bowed leading and trailing edge spars, known in Europe as the Hopatcong type. The latter is sailed with the user on the leeward side of the sail which is difficult and dangerous.
Generally, all hand-held sails to date have been complex, heavy and awkward to handle.
There have been several other hand-held sail types proposed. For instance, the SAILAIR~ is a generally conical type sail which comprises two spars joined at a vertex and held apart by a spreader bar. A sail is rigged between the two spars and the user manipulates the sail by grasping each of the spars and resting one on his knee with the joint between the two spars pointed downwardly. The SAILAIR~ is disadvantageous in that it is :~L2;~ 33 considered to be an unstable design, one which does not lend itself to maneouverability.
A further type of hand-held sail is known as the Eastland sail. This sail comprises a generally vertical mast with a mast foot adapted to be rested on a boot or shoe. A wishbone boom, of the type usually found in wind-surfers, is situated mid-way up the mast, and a generally triangular sail is rigged from the mast between the twin boom members of the wishbone boom. The Eastland sail is maneouvered very much like a sailboard, but it has been found that tacking is more difficult with the Eastland sail than with the traditional sailboard, as it is necessary with the Eastland sail to use one's foot as a mast rest, and therefore when the sail is shifted to an opposite tack, it is not possible for the user to completely shift his body with the sail.
The object of the present invention is to overcome the disadvantages associated with known hand-held sails, and provide an efficient but inexpensive hand-held sailing rig.
In one broad aspect, the present invention relates to a hand-held sailing rig for wind propelled locomotion including: a3 a sail having a slightly curved luff and a substantially semi-circular leech; b) stiffening means associated with said luff for stiffening said luff, comprising a pair of flexible substantially identical spars joined together by a connector co-axial with said spars and adapted for detachable connection to said spars; c) a boom comprising a third, substantially identical spar extending from the mid-point of said luff to the mid-point of said leech, said connector being adapted for detachable connection to said third spar; and (d) at least a pair of battens, one on each side of said boom (c), each batten extending from said leech toward said luff.
In another broad aspect, the present invention relates to a cleat for use with a sailing rig, said cleat being substantially cylindrical and having a top and a bottom located at opposite ends of its major axis, said bottom being adapted for attachment to a mast, spar or the like, and said top being provided with a diametrically extending slot, parallel to the major axis of the cleat, said slot having mutually opposed interior surfaces which are provided with ridges to graspingly engage a sheet, halyard or other sail rigging line to secure it against slippage.
In another broad aspect, the present invention relates to a connecting apparatus for connecting at least three substantially identical spars together to form a mast for a hand-held sail, said apparatus having a main body portion with a major axis terminating in a pair of ends each adapted for secure connection to a spar and means integral with said main body portion for securing a spar to said main body portion normal to said major axis.
's - ~
1 ~215~3~
In drawings which illustrate, by way of example, the embodiments of the present invention:
Figure 1 is a plan view of a rig embodying the present invention, and provided with the preformed batten, T connector and clea-t of the present invention;
Figure 2A is a cross-sectional view through line II-II in Figure 1, Figure 2B is the same view as Figure 2A, but showing a standard, instead of a preformed batten;
Figure 3 is a perspective view of a cleat of the present invention: and _ __________~_____ _ 7 /
/
/
/
~ -3a-~2~33 Figure 4 is a perspective view of a T-connec-tor of the present invention.
Re~erring first to Figure 1, it will first be seen that the rig of the present invention does not include a mast per se, but rather utilizes a novel T-shaped arrangement of three substantially identical spars 1, 1' and 2. The spars are connected by a T-shaped spar-connector 3, and in a preferred embodiment the spars are identical, so that in assembling or disassembling the rig, it is not necessary to specifically note the location o~ each spar in the rig, the spars preferably being interchangeable. The spars are assembled on the T-shaped spar connector 3 so as to present two co-axial spars to serve as a form of mast (these spars will be referred to as mast spars 1 and 1').
The third spar extends away from the mast spar at 90, and is termed the boom spar 2~ The spars are manufactured from a resilient, durable material, such as, fibreglass tubing or aluminium tubing.
Alternatively mast spars 1 and 1' may be replaced by a single mast spar (not illustrated), the length of which would be equal to the combined lengths of mast spars 1 and 1'. In such a case, T-connector 3 will completely hollow through its major axis, so it can be slid onto the single mast spar, and held on by friction.
~'~21S8;3 The sail 4 provided in the present invention is substantially semi-circular, as shown in Figure l. The luff of the sail 4 is curved (but not as sharply as the leech) and is provided with a pair of pockets 5, one upper and one lower, for accommodating the mast spars l, l'. The sail is provided with a series of battens 7 which may be preformed to assume an air foil shape (as shown in Figure 2A). The battens are inserted in batten pockets 6 in the sail 4. The pockets extend fully from the luff of the sail to the leech of the sail 4 as shown in Figure l.
There are preferably four battens 7, two above the boom spar 2 and two below the boom spar 2. As can be seen in Figure 1, the battens 7 are spaced along the mast spars l, l' and are angulated away from the boom spar 2. Referring to Figure 2, it can be seen that the forward end of each preformed batten 7 is formed into a semi-circle. This portion of the batten 7 abuts one of the mast spars 1, l' and allows the batten 7 to rotate more or less freely about the mast spars. The leech end of each batten pocket 6 is provided with a closure flap 8. In a preferred embodiment "velcro"~ hook and pile fastener is used in the closure flaps 8.
Alternatively, as shown in Figure 2B, flexible battens may be utilized instead of preformed battens, and may also end in the batten pockets. Moreover, battens need not be full length from luff to leach, as shown in Figure 2B.
Sail tension is ad~ustable by means of a clew outhaul sheet 9 running from the clew lO of ~he sail to an end cleat ll on the boom spar, and a pair of luff tension control sheets 12 which 5~3 extend from the upper and lower vertexes of the sail 4 to cleats 11 located on the ends of the mast spars 1, 1'. It will be seen therefore that the luff tension control sheets 12 are effectively connected to both the luff and the leech of the sail and tensioning of these sheets will therefore tension the entire sail, while tensioning the clew outhaul sheet 9 will control the effective depth of the sail 4.
The substantially semi-circular or eliptical shape of the sail provided in the present invention has been found to be very efficient aerodynamically. ~oreover, the combined effect of providing a semi-circular sail with a slightly curved luff, and a straight, but very flexible ana resilient mast, is that sail tension in the leech of the sail will tend to bend the mast spars toward the leech. This helps to reduce stalling in the sail.
At a very high angle of attack into the wind, one would expect to encounter a stall condition which would result in very low lift to the sail and very high drag. However, with the sail configuration of the present inven-tion as described in the previous paragraph, when the angle of attack of the sail into the wind is very high, and there will consequently be very high air loads on the sail, the spars will tend to bend toward the leech as tension built up in the leech. This will cause an opening up of the leech, and a consequent reduction in the angle of attack to wind at tips of the sail, where stall is dangerous to stability.
~2~ 3 A further advantage of the present invention is that due to the fact that it is symmetrical, when a user wishes to change tack, it is not necessary for him to step around the sail as is done with a conventional sailboard rig, or to shift the sail to his opposite shoulder, a difficult maneouver that is necessary in a Hopatcong type sail, but rather he need only invert the sail and turn to the opposite tack through or away from the wind. In this way, he can be in control of the sail at all times.
As shown in Figure 1, the sail 4 of the present invention is not necessarily manufactured from a single piece. Rather, it can be manufactured from a nurnber of panels. There are two large central panels 41 which are surrounded by opposed pairs of inner 42 and outer 43 panels. The overlap of the inner 42 and outer 43 panels with one another and with the central panel 41 creates the batten pockets 7 for the sail 4 of the present invention. The luff tubes 5 of the sail of the present invention are applied to the luff of the sail 4 and sewn thereto~ Alternatively the panel configuration can run radially from the clew and/or head or horizontally, or otherwise. Batten pockets may also be applied, rather than incorporated in seams.
As noted above, a cleat 11 is provided on the end of each of the three spars 1, 1' and 2 of the sail of the present invention. These cleats are unique to the present invention, and as can be seen in Figure 3 each one is substantially cylindrically shaped with a top 111 and a bottom 112. The bottom 112 of each ~2~L5~
~leat 11 is hollowed to fit snuggly around a spar. On the top end of each cleat there is a slot 113 formed. This slot 113 extends diametrically across the top of the cleat 11 and is deep at one end, and shallow at the other. The interior surfaces of the slot 113 are ridged to graspingly engage a sheet, and in a preferred embodiment these interior surfaces converge slightly from top to bottom, and the ridges 114 on the opposite surfaces of the slot 113 are aligned with one another. In this way, in order to utilize the cleat ll of the present invention, a sheet is placed in the slot 113 with the free end of the sheet extending out of the cleat 11 from the shallow ended side of the slot 113. It will be seen therefore that the sheet will extend down the slot 113 from shallow end to deep end. To tension the sheet all that need be done is to grasp and pull the free end. The sheet is then drawn up the slot 113 and when the free end is released it will be drawn by tension in the leech of the sail back into the slot, and as it is drawn into the slot it will tend to be grasped by the ridges 114. As it is drawn tightly into the slot 113 it will descend the slot 113, and since the slot 113 converges from top to bottom, it will be held quite tightly between the ridges 114 nearest the bottom portion of the slot.
It should be noted though, that the cleat of the present invention is quite satisfactory if provided with a slot of constant depth. Moreover, a standard cleat may be provided on the end of the spar, and if this is the case, a fairlead or an endcap with a hole or slot through which a sheet can be passed is .~%Z~ 33 provided on the end of each spar. As noted above, there is a T-connector 3 ~see Figure 4) provided to connect the three spars 1, 1' and 2 of the present inven-tion. This T-connector 3 is preferably manufactured of injected moulded plastic material. It will be seen that this T-connector 3 has a major axis coaxial with the mast spars 1, 1' of the present invention (when they are in place). In order to strengthen this major axis, the T-connector is hollow along this axis and is provided with a structural tubing insert, such as a tubular aluminum inser-t or a fibreglass insert.
The ends of the T-connector (both the major axis ends and the end connected to the spar boom) are adapted to be connected to the spars of the present invention. For instance they may be hollowed so that the spars can fit within them, or they may be constricted so that if hollow spars are being utilized the spars can be fitted around the ends of the T-connector. In the same way, the cleats may be either hollowed or they m~y have constricted ends, for use with hollow type spars.
The sail of the present invention is preferably manufactured from a light weight sail material such as Dacron~ or a resin impregnated polyester sail cloth and it is reinforced with folds and stitching along its leech, and in the areas of the upper and lower vertexes and near the clew with additional layers of material ("patches"), as shown in Figure 1.
,, _g_
The present invention relates to the field of sailing, either on water, on ice or on land, and more particularly to the field of hand-held sails.
The general concept of utilizing a hand-held sail for propulsion is not new, but has been in existence since at least as early as the late nineteenth century. Hand held sails are not like body supported sails which are tied to the user (see Canadian Patent No. 20371 (Nelson)). A hand-held sail is like the name implies, a sail, stiffened with spars and unstayed. It is solely hand-held, perhaps resting against the body of the user as well.
A good example of a hand-held sail is Canadian Patent No.
1,105,330 (Harpole). There is another type using a crusiform frame and bowed leading and trailing edge spars, known in Europe as the Hopatcong type. The latter is sailed with the user on the leeward side of the sail which is difficult and dangerous.
Generally, all hand-held sails to date have been complex, heavy and awkward to handle.
There have been several other hand-held sail types proposed. For instance, the SAILAIR~ is a generally conical type sail which comprises two spars joined at a vertex and held apart by a spreader bar. A sail is rigged between the two spars and the user manipulates the sail by grasping each of the spars and resting one on his knee with the joint between the two spars pointed downwardly. The SAILAIR~ is disadvantageous in that it is :~L2;~ 33 considered to be an unstable design, one which does not lend itself to maneouverability.
A further type of hand-held sail is known as the Eastland sail. This sail comprises a generally vertical mast with a mast foot adapted to be rested on a boot or shoe. A wishbone boom, of the type usually found in wind-surfers, is situated mid-way up the mast, and a generally triangular sail is rigged from the mast between the twin boom members of the wishbone boom. The Eastland sail is maneouvered very much like a sailboard, but it has been found that tacking is more difficult with the Eastland sail than with the traditional sailboard, as it is necessary with the Eastland sail to use one's foot as a mast rest, and therefore when the sail is shifted to an opposite tack, it is not possible for the user to completely shift his body with the sail.
The object of the present invention is to overcome the disadvantages associated with known hand-held sails, and provide an efficient but inexpensive hand-held sailing rig.
In one broad aspect, the present invention relates to a hand-held sailing rig for wind propelled locomotion including: a3 a sail having a slightly curved luff and a substantially semi-circular leech; b) stiffening means associated with said luff for stiffening said luff, comprising a pair of flexible substantially identical spars joined together by a connector co-axial with said spars and adapted for detachable connection to said spars; c) a boom comprising a third, substantially identical spar extending from the mid-point of said luff to the mid-point of said leech, said connector being adapted for detachable connection to said third spar; and (d) at least a pair of battens, one on each side of said boom (c), each batten extending from said leech toward said luff.
In another broad aspect, the present invention relates to a cleat for use with a sailing rig, said cleat being substantially cylindrical and having a top and a bottom located at opposite ends of its major axis, said bottom being adapted for attachment to a mast, spar or the like, and said top being provided with a diametrically extending slot, parallel to the major axis of the cleat, said slot having mutually opposed interior surfaces which are provided with ridges to graspingly engage a sheet, halyard or other sail rigging line to secure it against slippage.
In another broad aspect, the present invention relates to a connecting apparatus for connecting at least three substantially identical spars together to form a mast for a hand-held sail, said apparatus having a main body portion with a major axis terminating in a pair of ends each adapted for secure connection to a spar and means integral with said main body portion for securing a spar to said main body portion normal to said major axis.
's - ~
1 ~215~3~
In drawings which illustrate, by way of example, the embodiments of the present invention:
Figure 1 is a plan view of a rig embodying the present invention, and provided with the preformed batten, T connector and clea-t of the present invention;
Figure 2A is a cross-sectional view through line II-II in Figure 1, Figure 2B is the same view as Figure 2A, but showing a standard, instead of a preformed batten;
Figure 3 is a perspective view of a cleat of the present invention: and _ __________~_____ _ 7 /
/
/
/
~ -3a-~2~33 Figure 4 is a perspective view of a T-connec-tor of the present invention.
Re~erring first to Figure 1, it will first be seen that the rig of the present invention does not include a mast per se, but rather utilizes a novel T-shaped arrangement of three substantially identical spars 1, 1' and 2. The spars are connected by a T-shaped spar-connector 3, and in a preferred embodiment the spars are identical, so that in assembling or disassembling the rig, it is not necessary to specifically note the location o~ each spar in the rig, the spars preferably being interchangeable. The spars are assembled on the T-shaped spar connector 3 so as to present two co-axial spars to serve as a form of mast (these spars will be referred to as mast spars 1 and 1').
The third spar extends away from the mast spar at 90, and is termed the boom spar 2~ The spars are manufactured from a resilient, durable material, such as, fibreglass tubing or aluminium tubing.
Alternatively mast spars 1 and 1' may be replaced by a single mast spar (not illustrated), the length of which would be equal to the combined lengths of mast spars 1 and 1'. In such a case, T-connector 3 will completely hollow through its major axis, so it can be slid onto the single mast spar, and held on by friction.
~'~21S8;3 The sail 4 provided in the present invention is substantially semi-circular, as shown in Figure l. The luff of the sail 4 is curved (but not as sharply as the leech) and is provided with a pair of pockets 5, one upper and one lower, for accommodating the mast spars l, l'. The sail is provided with a series of battens 7 which may be preformed to assume an air foil shape (as shown in Figure 2A). The battens are inserted in batten pockets 6 in the sail 4. The pockets extend fully from the luff of the sail to the leech of the sail 4 as shown in Figure l.
There are preferably four battens 7, two above the boom spar 2 and two below the boom spar 2. As can be seen in Figure 1, the battens 7 are spaced along the mast spars l, l' and are angulated away from the boom spar 2. Referring to Figure 2, it can be seen that the forward end of each preformed batten 7 is formed into a semi-circle. This portion of the batten 7 abuts one of the mast spars 1, l' and allows the batten 7 to rotate more or less freely about the mast spars. The leech end of each batten pocket 6 is provided with a closure flap 8. In a preferred embodiment "velcro"~ hook and pile fastener is used in the closure flaps 8.
Alternatively, as shown in Figure 2B, flexible battens may be utilized instead of preformed battens, and may also end in the batten pockets. Moreover, battens need not be full length from luff to leach, as shown in Figure 2B.
Sail tension is ad~ustable by means of a clew outhaul sheet 9 running from the clew lO of ~he sail to an end cleat ll on the boom spar, and a pair of luff tension control sheets 12 which 5~3 extend from the upper and lower vertexes of the sail 4 to cleats 11 located on the ends of the mast spars 1, 1'. It will be seen therefore that the luff tension control sheets 12 are effectively connected to both the luff and the leech of the sail and tensioning of these sheets will therefore tension the entire sail, while tensioning the clew outhaul sheet 9 will control the effective depth of the sail 4.
The substantially semi-circular or eliptical shape of the sail provided in the present invention has been found to be very efficient aerodynamically. ~oreover, the combined effect of providing a semi-circular sail with a slightly curved luff, and a straight, but very flexible ana resilient mast, is that sail tension in the leech of the sail will tend to bend the mast spars toward the leech. This helps to reduce stalling in the sail.
At a very high angle of attack into the wind, one would expect to encounter a stall condition which would result in very low lift to the sail and very high drag. However, with the sail configuration of the present inven-tion as described in the previous paragraph, when the angle of attack of the sail into the wind is very high, and there will consequently be very high air loads on the sail, the spars will tend to bend toward the leech as tension built up in the leech. This will cause an opening up of the leech, and a consequent reduction in the angle of attack to wind at tips of the sail, where stall is dangerous to stability.
~2~ 3 A further advantage of the present invention is that due to the fact that it is symmetrical, when a user wishes to change tack, it is not necessary for him to step around the sail as is done with a conventional sailboard rig, or to shift the sail to his opposite shoulder, a difficult maneouver that is necessary in a Hopatcong type sail, but rather he need only invert the sail and turn to the opposite tack through or away from the wind. In this way, he can be in control of the sail at all times.
As shown in Figure 1, the sail 4 of the present invention is not necessarily manufactured from a single piece. Rather, it can be manufactured from a nurnber of panels. There are two large central panels 41 which are surrounded by opposed pairs of inner 42 and outer 43 panels. The overlap of the inner 42 and outer 43 panels with one another and with the central panel 41 creates the batten pockets 7 for the sail 4 of the present invention. The luff tubes 5 of the sail of the present invention are applied to the luff of the sail 4 and sewn thereto~ Alternatively the panel configuration can run radially from the clew and/or head or horizontally, or otherwise. Batten pockets may also be applied, rather than incorporated in seams.
As noted above, a cleat 11 is provided on the end of each of the three spars 1, 1' and 2 of the sail of the present invention. These cleats are unique to the present invention, and as can be seen in Figure 3 each one is substantially cylindrically shaped with a top 111 and a bottom 112. The bottom 112 of each ~2~L5~
~leat 11 is hollowed to fit snuggly around a spar. On the top end of each cleat there is a slot 113 formed. This slot 113 extends diametrically across the top of the cleat 11 and is deep at one end, and shallow at the other. The interior surfaces of the slot 113 are ridged to graspingly engage a sheet, and in a preferred embodiment these interior surfaces converge slightly from top to bottom, and the ridges 114 on the opposite surfaces of the slot 113 are aligned with one another. In this way, in order to utilize the cleat ll of the present invention, a sheet is placed in the slot 113 with the free end of the sheet extending out of the cleat 11 from the shallow ended side of the slot 113. It will be seen therefore that the sheet will extend down the slot 113 from shallow end to deep end. To tension the sheet all that need be done is to grasp and pull the free end. The sheet is then drawn up the slot 113 and when the free end is released it will be drawn by tension in the leech of the sail back into the slot, and as it is drawn into the slot it will tend to be grasped by the ridges 114. As it is drawn tightly into the slot 113 it will descend the slot 113, and since the slot 113 converges from top to bottom, it will be held quite tightly between the ridges 114 nearest the bottom portion of the slot.
It should be noted though, that the cleat of the present invention is quite satisfactory if provided with a slot of constant depth. Moreover, a standard cleat may be provided on the end of the spar, and if this is the case, a fairlead or an endcap with a hole or slot through which a sheet can be passed is .~%Z~ 33 provided on the end of each spar. As noted above, there is a T-connector 3 ~see Figure 4) provided to connect the three spars 1, 1' and 2 of the present inven-tion. This T-connector 3 is preferably manufactured of injected moulded plastic material. It will be seen that this T-connector 3 has a major axis coaxial with the mast spars 1, 1' of the present invention (when they are in place). In order to strengthen this major axis, the T-connector is hollow along this axis and is provided with a structural tubing insert, such as a tubular aluminum inser-t or a fibreglass insert.
The ends of the T-connector (both the major axis ends and the end connected to the spar boom) are adapted to be connected to the spars of the present invention. For instance they may be hollowed so that the spars can fit within them, or they may be constricted so that if hollow spars are being utilized the spars can be fitted around the ends of the T-connector. In the same way, the cleats may be either hollowed or they m~y have constricted ends, for use with hollow type spars.
The sail of the present invention is preferably manufactured from a light weight sail material such as Dacron~ or a resin impregnated polyester sail cloth and it is reinforced with folds and stitching along its leech, and in the areas of the upper and lower vertexes and near the clew with additional layers of material ("patches"), as shown in Figure 1.
,, _g_
Claims (11)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A hand-held sailing rig for wind propelled locomotion including:
a) a sail having a slightly curved luff and a substantially semi-circular leech;
b) stiffening means associated with said luff for stiffening said luff, comprising a pair of flexible substantially identical spars joined together by a connector co-axial with said spars and adapted for detachable connection to said spars;
c) a boom comprising a third, substantially identical spar extending from the mid-point of said luff to the mid-point of said leech, said connector being adapted for detachable connection to said third spar; and d) at least a pair of battens, one on each side of said boom (c), each batten extending from said leech toward said luff.
a) a sail having a slightly curved luff and a substantially semi-circular leech;
b) stiffening means associated with said luff for stiffening said luff, comprising a pair of flexible substantially identical spars joined together by a connector co-axial with said spars and adapted for detachable connection to said spars;
c) a boom comprising a third, substantially identical spar extending from the mid-point of said luff to the mid-point of said leech, said connector being adapted for detachable connection to said third spar; and d) at least a pair of battens, one on each side of said boom (c), each batten extending from said leech toward said luff.
2. A hand-held sailing rig as claimed in Claim 1, further including (e) means for adjusting the tension in the luff.
3. A hand-held sailing rig as claimed in Claim 2, further including (f) means for adjusting the depth of said sail.
4. A hand-held sailing rig as claimed in Claim 3, wherein said means (e) comprises a sheet extending from each end of said leech, and a cleat fitted on the end of each of said pair of spars (b), said cleats being capable of graspingly engaging said sheets.
5. A hand-held sailing rig as claimed in Claim 4, wherein said means (f) comprises a clew outhaul sheet extending from the mid point of said leech, and fitable in a cleat on the end of said boom, said cleat being capable of graspingly engaging said sheet.
6. A hand-held sailing rig as claimed in Claim 5, wherein said battens are adapted to pivot about said spars (b).
7. A hand-held sailing rig as claimed in Claim 6, wherein the forward end of each batten is semi-circular in horizontal section.
8. A hand-held sailing rig as claimed in Claim 3, wherein said battens are retained in batten pockets in said sail, each said batten pocket extending from said luff to said leech, at an angle relative to said boom, the leech end of said pockets being provided with a closure.
9. A hand-held sailing rig as claimed in Claim 8 including four said battens, two above and two below said boom.
10. A hand held sailing rig as claimed in Claim 9, wherein said closure is selected from the group including hook and pile closures, buckle and strap closures, and string tensioning closures.
11. A hand held sailing rig as claimed in Claim 9, wherein said closure is a hook and pile closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000482228A CA1221583A (en) | 1985-05-23 | 1985-05-23 | Hand held sail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000482228A CA1221583A (en) | 1985-05-23 | 1985-05-23 | Hand held sail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1221583A true CA1221583A (en) | 1987-05-12 |
Family
ID=4130541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000482228A Expired CA1221583A (en) | 1985-05-23 | 1985-05-23 | Hand held sail |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1221583A (en) |
-
1985
- 1985-05-23 CA CA000482228A patent/CA1221583A/en not_active Expired
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