FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
As amended by the Patents (Amendment) Act, 2005
AND
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2005
COMPLETE SPECIFICATION (See section 10 and rule 13)
TITLE OF THE INVENTION A ROPE GUIDE ASSEMBLY
APPLICANTS :
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030, Maharashtra, India, an Indian Company
INVENTOR (S):
Shinde Prakash Tukaram and Kulkarni Jayant Kashinath; both of Crompton Greaves Ltd , S1 - Engineering Department, Switchgear Complex, Ambad, Nasik-422010, Maharashtra, India; both 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 the Invention:
This invention relates to the field of hoisting and lifting mechanisms.
This invention also relates to transformer and its associated components, thereof. Particularly, this invention relates to a rope guide assembly.
Background of the Invention:
A transformer is an electrical device which aids in transfer of voltage from once circuit to another. There are capacitive voltage transformers and inductive voltage transformers. For industrial use and higher ratings, these transformers are bulky and have a height which may range about 3-4 feet. They need to be transported from one location to another, and further need to be hoisted appropriately using guides, frames, hoisting mechanisms.
It is to be ensured that the framework for hoisting does not damage the transformer and provides a secure fit. Also, it should not be a cumbersome procedure.
The transformer typically has a central conductor and a co-axial insulator. In the prior art, a ring is fitted about the insulator and a rope from an external hoisting mechanism is guided around the transformer through the ring. The transformer, in this condition is subjected to the motions of roll and pitch which may lead to it being toppled over while being lifted or moved.

The disadvantage relating to the prior art involve a cumbersome design and operation with more manual labour and operation time. The ring involved is a bulky ring and needs more storage space.
There is a need for a more efficient, better, and secure rope guide for providing a firm fit for the ropes of the hoisting mechanism to guide the ropes about the transformer.
Prior Art:
Various lifting mechanisms and frames for aiding lifting mechanisms have been disclosed in the prior art.
ABB's has a VR-3S Medium Voltage Vacuum Recloser for lifting reclosers. Specifically, by attaching two brackets on two sides of a cabinet portion of a recloser, it provisions for lifting the recloser. However, this is a fixed mechanism.
Jyoti's Voltage Transformer is provided with lifting hooks on a tank of the voltage transformer for lifting. However, this is also a fixed mechanism.
Objects of the Invention:
An object of the invention is to provide a rope guide assembly for providing a hoisting mechanism which securely aids in holding the component to be hoisted or moved or located.
Another object of the invention is to reduce skill involved in hoisting.

Yet another object of the invention is to provide a reduced size assembly for providing a secure hoisting position.
Still another object of the invention is to provide a self locating, fast and time saving assembly.
Summary of the Invention:
According to this invention, there is provided a rope guide assembly which comprises:
a. centrally located cylinder adapted to snug-fit co-axially with a conductor
of a transformer; and
b. plurality of radially dispersed flanges about said cylinder, at the operative
top edge of said cylinder, said flanges including slits at their operative
distal end for guiding a rope of a hoisting mechanism.
According to an alternative embodiment of this invention, there is provided a rope guide assembly which comprises:
a. centrally located cylinder adapted to snug-fit co-axially with a conductor
of a transformer; and
b. pair of diametrically oppositely disposed flanges about said cylinder, at
the operative top edge of said cylinder, said flanges including slits at their
operative distal end for guiding a rope of a hoisting mechanism.
Typically, said slit is a 1mm slit.
Preferably, said assembly is a Mild Steel assembly.

Brief Description of the Accompanying Drawings:
Figure 1 illustrates a transformer with the rope guide of the prior art; and
Figure 2 illustrates a rope guide of the prior art.
The invention will now be described in relation to the accompanying drawings, in which:
Figure 3a illustrates an isometric view of the rope guide assembly;
Figure 3b illustrates a top view of the rope guide assembly of Figure 3a;
Figure 3c illustrates a front view of the rope guide assembly of Figure 3a; and
Figure 3d illustrates a side view of the rope guide assembly of Figure 3a.
Detailed Description of the Accompanying Drawings:
Figure 1 illustrates a transformer with the rope guide of the prior art; and
Figure 2 illustrates a rope guide of the prior art.
A transformer (10) with a conductor (12) and a co-axial insulator (14) is shown in Figure 2 of the accompanying drawings. A rope guide of the prior art is indicated by reference numeral 20. A hoisting mechanism includes ropes (16) which are

facilitated through the rope guide (20). This rope guide is fitted about the body of the transformer (10).
Typically, this rope guide (20) of the prior art includes two semi-circular portions (22, 24) with mating parts (26) at their ends to receive one another in order to form a full substantially circular ring. At diametrically opposite ends, guide tabs (28) which allow the rope (16) to be guided through it, thereby providing a lifting framework with the help of which the transformer (10) may be lifter and hoisted.
This process of mating the semi-circular portions securely around the body requires skill and manpower and the further process of bolting the portions requires additional skill and additional manpower. It is a cumbersome process.
According to this invention, there is provided a rope guide assembly (30).
Figure 3a illustrates an isometric view of the rope guide assembly; Figure 3b illustrates a top view of the rope guide assembly of Figure 3a; Figure 3 c illustrates a front view of the rope guide assembly of Figure 3 a; and Figure 3d illustrates a side view of the rope guide assembly of Figure 3a.
In accordance with an embodiment of this invention, there is provided a centrally located cylinder (32) adapted to be co-axial with the conductor (14) such that the conductor snug fits into the cylinder and thus into the rope guide assembly (30) of the invention. The snug fit ensures that as the rope guide assembly is lifted, the snug-fitted conductor, and simultaneously, the co-axially enveloped transformer is lifted too, without much strain.

In accordance with another embodiment of this invention, there is provided a pair of diametrically oppositely disposed flanges (34) / arms with slits (36) to guide a rope (16) from a hoisting mechanism. The guided rope hooks with the eye bolts (15) provided at the relative bottom portion of the transformer.
The flanges originate from the operative top edge of the cylinder. The cylinder, thus, extends downwards from the plane in which the flanges are disposed. The length of the flange is adequately defines such that the guided ropes are substantially parallel to the transformer, thereby providing a balanced fit.
Typically, the slits are provided at the operative distal end of the flanges / arms.
Alternatively, there may be a plurality of radially dispersed flanges / arms about said cylinder.
Typically, this rope guide assembly is Fitted at the neck i.e. at the operative top of
the conductor of the transformer.
There is about a 1mm tolerance for rope entry at the slits.
Due to this invention, no clamping is required.
While this detailed description has disclosed certain specific embodiments of the present invention for illustrative purposes, various modifications will be apparent to those skilled in the art which do not constitute departures from the spirit and scope of the invention as defined in the following claims, and it is to be distinctly

understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

We claim,
1. A rope guide assembly comprising:
a. centrally located cylinder adapted to snug-fit co-axially with a conductor
of a transformer; and
b. plurality of radially dispersed flanges about said cylinder, at the operative
top edge of said cylinder, said flanges including slits at their operative
distal end for guiding a rope of a hoisting mechanism.
2. A rope guide assembly comprising:
a. centrally located cylinder adapted to snug-fit co-axially with a conductor
of a transformer; and
b. pair of diametrically oppositely disposed flanges about said cylinder, at
the operative top edge of said cylinder, said flanges including slits at their
operative distal end for guiding a rope of a hoisting mechanism.
3. An assembly as claimed in claim 1 wherein, said slit is a 1mm slit.
4. An assembly as claimed in claim 1 wherein, said assembly is a Mild Steel assembly.