Description of the invention
The Central Pillar Mechanism consists of a central pillar made w^th RDE 40 Alloy material comprising of tapering top and bottom modules (6.6 mtrs, each) with interconnection. The length of this central pfliar can be extended with further addition of middle modules as per site requirement. This centra! pillar when used without the middle modules keeps floating with the help of motorized winch, tirfors, single sheave pulleys, w re ropes etc. to lift the pre-assembled panel sections of hot dip gaivanuec tower sections. This can also be used as fixed type central pillar with the addition of 3 to 4 middle modules of length 6 mtrs. each. This system aiso consists of a bottom assembly to seat the central pillar on the ground and a top crane with pin and hinge mechanism enabling its movement^rotation in 360 degrees. It is capable of lifting a weight of 1 MT at a time.
Background
in India, tcwer erection in high voltage transmission lines is being done by manual ensction method using pipe den-icks, pulleys, etc. This method is found to bs very slow being manpower oriented and hence Tata Projects Ltd., one of the major players in transmission line indust^, in an attempt to find a mote mechanized system reducing the involvement of manpower for tower erection, found an innovative technique for the purpose. That is how Central Pillar Mechanism is t>orn
Basically,this system involves in lifting the pre-assembled panel sections of towers with the help of a central pillar which Is of floating / fixed type (optional) by using a motorized winch and a top crane assembly consisting of pulleys, etc. These transmission towers are self supporting from legged lattice type structures duly hoi dip galvanized.

utility value of thi^ invention
The usage of proposed system has got the following advantages ;
(i) Being light in weight, it is easy to handle, operate and transport. (ii) A saving of about 20% In time taken for erecting the tower. (i!i) A saving of aoout 40% in man-days required for erection of tower. (iv) Exposure to risk is minimized in view of less manpower on Ihe
towor during erection and hence a safer technique, (v) An overall saving of about 30% in cost of tower erection. (VI) Belrig non-corrosive, the longevity of this mechanism is much mom
tnari the normal traditional pipe den-ick system (vii) No maintenance cost when compared to that of the traditional
system. (vifi) It is user-frjondly and different from the existing system.
inventive steps in the art / technology, which can be claimed for Novelty
• Different in technology
• Light weight, corrosion free RDE-4Q Aluminium Alloy is used in place of MS Pipe Derricks, which are the mam components in the existing system being used in tower erection.
• This iE self floating type without the involvement of the manual movement of the system.
• The ce itral pillar can be inclined and rotated in 360 degrees.

We claim,
1 A floating type central pillar mechanism for tower erection comprises a pillar centrally fixed before the erection of the tower and wherein the central pillar is used as a support to fix the tower and the same is used to supply the material to the top for erection of the tower.
2, A floating type central pillar mechanism for tower erection according to
claim 1, w:herein the tower is of single pillar and has a rotating instrument
to supply the material for construction of the tower
3, A floating type central pillar mechanism for tower erection according to
claim 1. wherein the rotating type instrument is connected to a crane to
move up and down wards to lift any material.
4, A floating type central pillar mechanism for tower erection as herein
described with particular reference to description and diagrams.