FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
As amended by the Patents (Amendment) Act, 2005
&
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2006
COMPLETE SPECIFICATION
(See section 10 and rule 13)
TITLE OF INVENTION
A manually operated compact modular superconducting tape winding device APPLICANTS
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030, Maharashtra, India, an Indian Company
INVENTORS
INVENTORS
Sathe Mahesh Kashinath, Crompton Greaves Limited, Industrial Design
Centre (IDS), CG Global R&D Centre, Kanjurmarg (East), Mumbai 400042,
Maharashtra; Dr. Dixit Manglesh Gyanshankar , Crompton Greaves
Limited, Technology Management Cell, CG Global R&D Centre,
Kanjurmarg (East), Mumbai 400042, Maharashtra; Vaithiyanathan
Ramakichenan, Crompton Greaves Limited, Condition Monitoring and Diagnostic Research Centre (CMDRC), CG Global R&D Centre, Kanjurmarg (East), Mumbai 400042, Maharashtra; Pawar Sumedh Pundalik, Crompton Greaves Limited, Analytical Lab, CG Global R&D Centre, Kanjurmarg (East), Mumbai 400042, Maharashtra, Dr. Gattadahalli Nandini Guruprasad, Crompton Greaves Limited, CG Global R&D Centre, Kanjurmarg (East), Mumbai 400042, Maharashtra; and Dr Jaiswal Rajendra Gulabchand, Crompton Greaves Limited, Advance Material & Process Technology Centre (AMPTC), CG Global R&D Centre, Kanjurmarg (East), Mumbai 400042, Maharashtra, all Indian nationals
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the nature of this invention and the manner in which it is to be performed:

FIELD OF INVENTION
This invention relates to a manually operated compact modular
superconducting tape winding device.
PRIOR ART DESCRIPTION
Copper conductors used in electrical power devices such as transformers, fault current limiters, motors or generators are being replaced by superconducting tapes (including wires) because of the superior electrical properties such as zero electrical resistance, perfect diamagnetism or sharp transition from superconducting state to normal state. Use of superconducting tapes in electric power devices also increases the efficiency of the devices considerably besides substantially reducing the size and weight of the devices. Superconductors are generally classified as low temperature or conventional superconductors and high temperature superconductors. The low temperature superconductors are metallic alloys based (such as NbTi or Nb3Sn), whereas the high temperature superconductors are ceramic based [Yttrium barium copper oxide (YBCO) or Bismuth strontium calcium copper oxide (BSCCO)]. Superconductors are generally wound into the required shapes and sizes on floor mounting type of machines like lathe machines. Lathe machines comprise a large number of components such as gear subassemblies, pulley and belt subassemblies and clutch and brake subassemblies. Besides being not movable from place to place because of their large size and weight, such machines also occupy large area. They also require periodic oiling and greasing for maintenance and are cumbersome to maintain. Their power consumption is high and they are expensive. During starting, switching off
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and braking of such machines there are also possibilities of jerking and kinking leading to deformation or breaking of the superconducting tapes.
OBJECTS OF INVENTION
An object of the invention is to provide a manually operated compact modular superconducting tape winding device which is simple in construction, easy to assemble and disassemble, light weight and portable, which does not require any energy input for its operation, which comprises very few components and is cheap and which occupies reduced space.
Another object of the invention is to provide a manually operated compact modular superconducting tape winding device whose speed of operation can be controlled so as to wind the tape with the required tension.
Another object of the invention is to provide a manually operated compact
modular superconducting tape winding device, which does not require any
maintenance.
Another object of the invention is to provide a manually operated compact
modular superconducting tape winding device, whose angles of unwinding
and winding of the tape can be adjusted so as to prevent deformation,
kinking or braking of the tape.
Another object of the invention is to provide a manually operated compact modular superconducting tape winding device, which can be mounted on table top and is ideal for laboratory applications.
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DETAILED DESCRIPTION OF THE INVENTION
According to the invention there is provided a manually operated compact modular superconducting tape winding device comprising a planar support formed of a base member and a top member disposed over and removably fitted to the base member, the top member having two pairs of oblong locator grooves, one pair of locator grooves being spaced apart from the other pair of locator grooves along the length of the top member, the locator grooves of both the pairs of locator grooves being equally spaced apart, the base member having a plurality of equally spaced bolt holes disposed in each of the locator grooves, a pair of modular tape reel holding pillars comprising a plurality of blocks stacked one another and bolt fitted together, each of the tape reel holding pillars being located in each of the locator grooves of one pair of locator grooves and adjustably bolt mounted on the base member, the tape reel holding pillars being provided with mounting slots for the tape reel shaft and a pair of modular former holding pillars each comprising a plurality of blocks stacked one above another and bolt fitted together, each of the former holding pillars being located in each of the locator grooves of the other pair of locator grooves and adjustably bolt mounted on the base member, the former holding pillars being provided with mounting slots for the former shaft, the former shaft having a pair of holders, one at each end of the former shaft disposed outside and abutting against the respective former holding pillar.
The following is a detailed description of the invention with reference to the accompanying drawings, in which:
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Fig 1 is an isometric view of the manually operated compact modular superconducting tape winding device according to an embodiment of the invention; and
Fig 2 is an exploded view of the device of Fig 1.
The device 1 as illustrated in Figs 1 and 2 of the accompanying drawings comprises a planar support formed of a base member 2 and a top member 3 disposed over and fitted to the base member using bolts 4 engaged in bolt holes 5 a and 5b in the base member and top member, respectively and tightened by nuts 6. The base member and top member can be easily assembled and disassembled because of the bolt fitting thereof. The top member has two pairs of oblong locator grooves 7a and 7b and 8a and 8b. The pairs of locator grooves 7a and 7b and 8a and 8b are spaced apart from each other along the length of the top member. The grooves 7a and 7b and 8a and 8b of both the pairs of locator grooves are equally spaced apart. The base member has a plurality of equally spaced bolt holes 9 disposed in each of the locator grooves 7a, 7b, 8a and 8b. 10a and 10b are a pair of modular tape reel holding pillars comprising a bottom block 11a and a top block 1 lb and a plurality of intermediate blocks 1 lc. The blocks of each of the pillars 10a and 10b are stacked one above another and fitted together by bolts lid and lie running there through. The bottom block of each of the pillars 10a and 10b is located in each of the locator grooves 7a and 7b and is mounted on the base member by bolts 12 tightened in bolt holes 1 If in each of the bottom blocks and in corresponding two adjacent bolt holes 9 in the base member. 13a and 13b are a pair of modular former holding pillars each comprising a bottom block 14a and a top block 14b and a plurality of
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intermediate blocks 14c. The blocks of each of the pillars 13a and 13b are stacked one above another and held together by bolts 14d and 14e running therethrough. The bottom block of each of the pillars 13a and 13b is located in each of the locator grooves 8 a and 8b and is mounted on the base member 2 by bolts 15 tightened in bolts holes 14f in each of the bottom blocks and in corresponding two adjacent bolt holes 9 in the base member. 16 is a tape reel shaft located in mounting slots 17 provided in the upper most intermediate block of each of the pillars 10a and 10b. 18 is a tape reel mounted on the tape reel shaft through hole 18a therein and having the superconducting tape 19 wound on it. 20 is a former shaft located in mounting slots 21 provided in the upper most intermediate block of each of the pillars 13a and 13b. 21 is a former mounted on the former shaft through A hole (not shown) therein. A pair of former holders 22 are mounted one at each end of the former shaft through the holes 22a therein. The former holders are disposed outside the respective pillars 13a and 13b and are abutting against the respective pillars. The outer end of the tape on the tape reel is anchored on the former and the tape is wound on the former by rotating the former clockwise manually at the required speed. On rotating the former manually in the clockwise direction, the tape reel rotates in the anticlockwise direction and unwinds the tape and the unwinding tape winds on the former rotating in the clockwise direction. The tape winding speed can be controlled by controlling the speed of rotation of the former. As the former is rotated manually at controlled speed, jerks and kinks at the start and end of the winding operation and also during intermittent stoppage of the winding operation, if any, are prevented. As a result deformation or kinking or breaking of the tape is avoided. All the pillars can be assembled and disassembled easily because of their bolt fitting and modular
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construction. Height adjustment of the pillars is also easily possible because of the modular construction. The number of intermediate blocks can be increased or reduced for height adjustment of the pillars. The span length between tape reel holding pillars 10a and 10b and former holding pillars 13a and 13b can be easily adjusted by shifting the bottom blocks thereof from one pair of adjacent bolt holes 9 to another pair of bolt holes 9. Thus both the length span between the pillars and the height of the pillars can be adjusted so as to wind tapes on formers of different sizes and form tape windings of different sizes. The length span and height adjustments of the pillars also helps to control angles of winding and unwinding of the tapes so as to avoid deformation, kinking or breaking of the tapes. The device of the invention is simple in construction, easy to assemble and disassemble (because of the modular construction and bolt fitting), light weight and compact and can be easily shifted from one place to another. The base member, top member and pillars can be made of light weight mechanically strong and durable and cheap materials like wood or wood boards. It occupies reduced space and can be easily table top mounted for laboratory scale operations. In order to provide a grip against the planar support during handling of the device of the invention it is desirable to have the planar support in which the width of the base member is smaller than that of the top member. The space underneath the top member along both the longitudinal edges thereof against the reduced width of the base member provides the required hand grip. The device of the invention comprises few components and is practically maintenance free. It also does not require any energy input for its operation and is cheap.
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The modular construction of the pillars can vary. The locator grooves essentially facilitate location of the pillars on the base member aligned with one another. The pillars can be span length adjustably mounted on the planar support differently. The planar support can be single piece construction. Such variations in the construction and configuration of the device of the invention are obvious to those skilled in the art and are to be construed and understood to be within the scope of the invention.
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We claim:
1. A manually operated compact modular superconducting tape winding device comprising a planar support formed of a base member and a top member disposed over and removably fitted to the base member, the top member having two pairs of oblong locator grooves, one pair of locator grooves being spaced apart from the other pair of locator grooves along the length of the top member, the locator grooves of both the pairs of locator grooves being equally spaced apart, the base member having a plurality of equally spaced bolt holes disposed in each of the locator grooves, a pair of modular tape reel holding pillars comprising a plurality of blocks stacked one another and bolt fitted together, each of the tape reel holding pillars being located in each of the locator grooves of one pair of locator grooves and adjustably bolt mounted on the base member, the tape reel holding pillars being provided with mounting slots for the tape reel shaft and a pair of modular former holding pillars each comprising a plurality of blocks stacked one above another and bolt fitted together, each of the former holding pillars being located in each of the locator grooves of the other pair of locator grooves and adjustably bolt mounted on the base member, the former holding pillars being provided with mounting slots for the former shaft, the former shaft having a pair of holders, one at each end of the former shaft disposed outside and abutting against the respective former holding pillar.
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2. The superconducting tape winding device as claimed in claim 1, wherein the base member is smaller in width than the top member.
Dated this 5th day of June 2007

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