Title of Invention	A DEVICE FOR AUTOMATICALLY DISCONNECTING POWER SUPPLY WHEN OVERHEAD LINES OF A POWER SYSTEM BREAK
Abstract	A device for automatically disconnecting power supply when overhead lines of a power system break, which comprises a non-conductive triangular frame (3) fitted onto a phase line between two adjacent posts of the power supply system. A non-conductive hollow cylinder (5) is provided with a closed end nearer to the post that comes first in the direction of the current flow. A metallic ball (2) is provided, which is freely movable inside the cylinder (S). A pair of metallic strips (1) is disposed between the cylinder at an end away from the closed end and connected respective Iy to the phase line and to a neutral line. In the event of the phase line breaking or going down, the metallic ball (2) rollos down the cylinder short circuiting the pair of metallic strips (1) and disconnecting the power supply through the broken line by blowing of a fuse.

Title of Invention

A DEVICE FOR AUTOMATICALLY DISCONNECTING POWER SUPPLY WHEN OVERHEAD LINES OF A POWER SYSTEM BREAK

Abstract

A device for automatically disconnecting power supply when overhead lines of a power system break, which comprises a non-conductive triangular frame (3) fitted onto a phase line between two adjacent posts of the power supply system. A non-conductive hollow cylinder (5) is provided with a closed end nearer to the post that comes first in the direction of the current flow. A metallic ball (2) is provided, which is freely movable inside the cylinder (S). A pair of metallic strips (1) is disposed between the cylinder at an end away from the closed end and connected respective Iy to the phase line and to a neutral line. In the event of the phase line breaking or going down, the metallic ball (2) rollos down the cylinder short circuiting the pair of metallic strips (1) and disconnecting the power supply through the broken line by blowing of a fuse.

Full Text	The present invention relates bo a device for automatically cutting off electric power suooly when a live overhead wire breaks or falis onto the ground. Electric power from the generating station is suppi led to the consumers through uninsulated overhead conductors - A large number of people die every year by unintentionally coming into contact with a live wire which has fallen onto the ground. The main object of this invention is to prevent unintentionally coming into contact with a broken live wire, which has falien onto the ground. This can be achieved bv automatically cutting off the electric power supply as soon as the live wire breaks and falls onto the ground. When a phase wire breaks, it hangs downward, causing the device fi xed onto the line along i bs iength also to hang downward - This causes a metal ball to roll down a cylinder short circuiting the phase line with the neutral line and blowing a fuse provided in the circuit. The electric power supply through the phase line is thus stopped automatically with the breaking of the wire. The invention will now be described in detail with the help of the accompanying drawing where Figure 1 shows the device in a schematic form. The device comprises a hoi low cylinder 5 made of non-conductive material, one end of which is closed. A metal 1ic bail 2 wi th a diameter slightly less than the diameter of the hollow cylinder 5, is placed inside the cylinder 5- A triangular shaped frame 3 carrying the hoi low cylinder 5 along one of its sides is fitted on to the phase line with the help of two clips 4- The frame 3 is also made of non-conductive material. The triangle is preferably a right angled triangie with the hypoteneus carrying the hollow cylinder 3. When the electric line runs in a level plane one of the two adjacent sides of the right angled triangular frame 3 containing the right angle can be made with a length of about 30 cm and this side can be called the base line 6 of the frame 3- The other adjacent side with a length of about 10 cm represents the height 7 of the frame - The third side is the hypoteneus of the structure. The hollow cylinder 5 which is carried by the hypoteneus of the triangular frame 3 has a length equal to the length of the hypoteneus. A metallic ball 2 is placed inside the hollow cylinder 5- Two bracket shaped metallic strips 1 are fixed separately inside the cylinder near to the open end in such a way that their convex sides face each other without touching. The ball can roll freely inside the cylinder. The two bracket shaped strips 1 are connected separately to two high gauge insulated electric wires and these two wires are passed over the cylinder up to the closed end and they are fixed firmly there. The cylinder 5 is fixed along the hypoteneus of tne triangular structure 3 in such a way that the closed end of the cylinder is away from the base line 6. Two clios 4 are fixed to the two ends of the base line 6. A small hole is provided at the closed end of the cylinder 5. A small hole is also provided on the triangular frame near to the closed end of the cylinder. The device of the present invention is fitted onto the phase line in between two electric posts and at the same time close to that post which come first in the direction of the flow of electric current. The device is fixed onto the phase line along its length using tne clips 4 provided with the base line 6 of the tn angular frame 3 in such a way that the closed end of the hallow cylinder 5 faces against the direction of the flow of electric current. The device thus hangs verticaliy downwrds from the phase line and the metallic ball 2 in the cylinder 5 rests at the closed end as the closed end is at a lower level compared with the open end.The two strips 1 provided on the cyi inder 5 are connected by two wires provided with the device, one each to the phase wire and fca the neutral wire. A string passing through the hole provided on the frame near to the closed and of the cylinder can be tied bo he post so that swinging of the device can be prevented during any movement of the electric line. This can be avoided if the neutral line is below the phase line as the connectinq wire between the apparatus and the neutral line itself serves the above mentioned purpose. Electric supply lines are provided withfuses not shown, at different places. In the event of breaking of the phase line, to which this device is fixed, the wire falls and hangs downwards from the electric post causing the device also to hang downwards with the closed end up and the open &nd (now covered with a cap) down. Th is causes the metallic ball 2 to rol1 downwards from the closed end to the open end (now covered with a cap) making the metal ball to rest in between the two bracket shaped metal 1IC strips 1, filling the gap between them. As one of these two strips is connected to the phase line and the other to the neutral line, the electric ci rcuit is short circuited. This causes the melting and breaking of the fuse wire provided in the circuit. When the fuse wire oreaks, the electric supply to the broken 1ine is stopped « The same thing as described above will also happen in the event of the phase line coming down dangerously low-When this device is connected to an electric line running steeply downwards, a right angled triangular frame wnich has more height must be used so that the metal 1ic bai1 remains always at the closed end of the cylinder. ZCLAIM 1 A device for automaticaliy cutting off power SUDPly when a live overhead wire breaks, comprising : a non-conductive triangular frame (3) carrying along one of its sides a non-conductive hallow cylinder (5) ; said frame fitted onto a phase line in between two posts of an overhead power supply system, with a closed end of said cylinder nearer to the post that comes first in the direction of current flow; a metallic ball (5); and a pair of metallic strips (1) disposed within said cylinder (5), one strip electrically connected to said phase line and the other strip to a neutral line; said metallic ball (2) rolling down and shorting the metal strips (1) in the event of breaking of said phase line and stopping the power supply with the blowing of a fuse provided in the circuit. 2- A device as claimed in claim 1, wherein said frame (3) carrying said cylinder (5) is fitted onto the phase line with the help of two clips (4). 3. A device as claimed in claims 1 and 2, where in said frame (3) is in the form of a right angled triangle with the hypoteneus carrying said hoilow cylinder (5). 4. A device as cI aimed in claim 3, wherein height (7) of said right angled triangular frame is selected such that said metallic ball (2 remains at the closed end of said cylinder. 5. A device as claimed in ciaim 3, wherein said right angled triangular frame has a height eiectric line runs in a level plana. 6. A device as claimed in claim 3, wherein said right angled triangular frame (3) has a base line (6) having a length of 30 cm. 7. A device as claimed in claim 5, wherein said height (7) is substantialiy greater when an electric line runs steeply downwards - B- A device as claimed in claim 1, wherein said frame (3) is provided with a hole nearer to the closed end of said cylinder (5) with a string passing through said hole for tying to

Full Text

The present invention relates bo a device for automatically cutting off electric power suooly when a live overhead wire breaks or falis onto the ground.
Electric power from the generating station is suppi led to the consumers through uninsulated overhead conductors - A large number of people die every year by unintentionally coming into contact with a live wire which has fallen onto the ground.
The main object of this invention is to prevent unintentionally coming into contact with a broken live wire, which has falien onto the ground.
This can be achieved bv automatically cutting off the electric power supply as soon as the live wire breaks and falls onto the ground.
When a phase wire breaks, it hangs downward, causing the device fi xed onto the line along i bs iength also to hang downward - This causes a metal ball to roll down a cylinder short circuiting the phase line with the neutral line and blowing a fuse provided in the circuit. The electric power supply through the phase line is thus stopped automatically with the breaking of the wire.

The invention will now be described in detail with the help of the accompanying drawing where Figure 1 shows the device in a schematic form.
The device comprises a hoi low cylinder 5 made of non-conductive material, one end of which is closed. A metal 1ic bail 2 wi th a diameter slightly less than the diameter of the hollow cylinder 5, is placed inside the cylinder 5- A triangular shaped frame 3 carrying the hoi low cylinder 5 along one of its sides is fitted on to the phase line with the help of two clips 4- The frame 3 is also made of non-conductive material.
The triangle is preferably a right angled triangie with the hypoteneus carrying the hollow cylinder 3.
When the electric line runs in a level plane one of the two adjacent sides of the right angled triangular frame 3 containing the right angle can be made with a length of about 30 cm and this side can be called the base line 6 of the frame 3- The other adjacent side with a length of about 10 cm represents the height 7 of the frame - The third side is the hypoteneus of the structure. The hollow cylinder 5 which is carried by the hypoteneus of the triangular frame 3 has a length equal to the length of the hypoteneus.

A metallic ball 2 is placed inside the hollow cylinder 5- Two bracket shaped metallic strips 1 are fixed separately inside the cylinder near to the open end in such a way that their convex sides face each other without touching. The ball can roll freely inside the cylinder. The two bracket shaped strips 1 are connected separately to two high gauge insulated electric wires and these two wires are passed over the cylinder up to the closed end and they are fixed firmly there.
The cylinder 5 is fixed along the hypoteneus of tne triangular
structure 3 in such a way that the closed end of the cylinder is
away from the base line 6. Two clios 4 are fixed to the two ends
of the base line 6.
A small hole is provided at the closed end of the cylinder 5. A small hole is also provided on the triangular frame near to the closed end of the cylinder.
The device of the present invention is fitted onto the phase line in between two electric posts and at the same time close to that post which come first in the direction of the flow of electric

current. The device is fixed onto the phase line along its length using tne clips 4 provided with the base line 6 of the tn angular frame 3 in such a way that the closed end of the hallow cylinder 5 faces against the direction of the flow of electric current.
The device thus hangs verticaliy downwrds from the phase line and the metallic ball 2 in the cylinder 5 rests at the closed end as the closed end is at a lower level compared with the open end.The two strips 1 provided on the cyi inder 5 are connected by two wires provided with the device, one each to the phase wire and fca the neutral wire.
A string passing through the hole provided on the frame near to the closed and of the cylinder can be tied bo he post so that swinging of the device can be prevented during any movement of the electric line. This can be avoided if the neutral line is below the phase line as the connectinq wire between the apparatus and the neutral line itself serves the above mentioned purpose.
Electric supply lines are provided withfuses not shown, at different places. In the event of breaking of the phase line, to

which this device is fixed, the wire falls and hangs downwards from the electric post causing the device also to hang downwards with the closed end up and the open &nd (now covered with a cap) down. Th is causes the metallic ball 2 to rol1 downwards from the closed end to the open end (now covered with a cap) making the metal ball to rest in between the two bracket shaped metal 1IC strips 1, filling the gap between them.
As one of these two strips is connected to the phase line and the other to the neutral line, the electric ci rcuit is short circuited. This causes the melting and breaking of the fuse wire provided in the circuit. When the fuse wire oreaks, the electric supply to the broken 1ine is stopped «
The same thing as described above will also happen in the event of the phase line coming down dangerously low-When this device is connected to an electric line running steeply downwards, a right angled triangular frame wnich has more height must be used so that the metal 1ic bai1 remains always at the closed end of the cylinder.

ZCLAIM
1 A device for automaticaliy cutting off power SUDPly when a live overhead wire breaks, comprising :
a non-conductive triangular frame (3) carrying along one of its sides a non-conductive hallow cylinder (5) ;
said frame fitted onto a phase line in between two posts of an overhead power supply system, with a closed end of said cylinder nearer to the post that comes first in the direction of current flow;
a metallic ball (5); and
a pair of metallic strips (1) disposed within said cylinder
(5), one strip electrically connected to said phase line and the
other strip to a neutral line;
said metallic ball (2) rolling down and shorting the metal strips (1) in the event of breaking of said phase line and stopping the power supply with the blowing of a fuse provided in the circuit.
2- A device as claimed in claim 1, wherein said frame (3) carrying said cylinder (5) is fitted onto the phase line with the help of two clips (4).

3. A device as claimed in claims 1 and 2, where in said frame
(3) is in the form of a right angled triangle with the hypoteneus
carrying said hoilow cylinder (5).
4. A device as cI aimed in claim 3, wherein height (7) of
said right angled triangular frame is selected such that said
metallic ball (2 remains at the closed end of said cylinder.
5. A device as claimed in ciaim 3, wherein said right
angled triangular frame has a height eiectric line runs in a level plana.
6. A device as claimed in claim 3, wherein said right
angled triangular frame (3) has a base line (6) having a length
of 30 cm.
7. A device as claimed in claim 5, wherein said height
(7) is substantialiy greater when an electric line runs steeply
downwards -
B- A device as claimed in claim 1, wherein said frame
(3) is provided with a hole nearer to the closed end of said
cylinder (5) with a string passing through said hole for tying to

Documents:

0363-mas-2001 abstract duplicate.pdf

0363-mas-2001 abstract-duplicate.jpg

0363-mas-2001 abstract-duplicate.pdf

0363-mas-2001 claims duplicate.pdf

0363-mas-2001 claims-duplicate.pdf

0363-mas-2001 description (complete) duplicate.pdf

0363-mas-2001 description (complete)-duplicate.pdf

0363-mas-2001 drawings duplicate.pdf

0363-mas-2001 drawings-duplicate.pdf

363-mas-2001-claims.pdf

363-mas-2001-correspondnece-others.pdf

363-mas-2001-correspondnece-po.pdf

363-mas-2001-description(complete).pdf

363-mas-2001-description(provisional).pdf

363-mas-2001-drawings.pdf

363-mas-2001-form 1.pdf

363-mas-2001-form 18.pdf

363-mas-2001-form 26.pdf

363-mas-2001-form 3.pdf

363-mas-2001-form 5.pdf

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Patent Number

222476

Indian Patent Application Number

363/MAS/2001

PG Journal Number

47/2008

Publication Date

21-Nov-2008

Grant Date

14-Aug-2008

Date of Filing

08-May-2001

Name of Patentee

BOSE VASU JOTHYSHALAYAM

Applicant Address

VATTATHUNDATHIL EDATHAMPARAMBU PONKUNNAM P.O. KOTTAYAM (DIST), KERALA 686 506,

Inventors:

#	Inventor's Name	Inventor's Address
1	BOSE VASU JOTHYSHALAYAM	VATTATHUNDATHIL EDATHAMPARAMBU PONKUNNAM P.O. KOTTAYAM (DIST), KERALA 686 506,

PCT International Classification Number

H02B13/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA