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 THE INVENTION A filament pick-up assembly
APPLICANT(S)
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030, Maharashtra, India, an Indian Company
INVENTOR(S)
Jangir Ramniwas, Padhiyar Jitendrabhai Thakorbhai and Maru Rameshbhai Motibhai; all of Crompton Greaves Limited, Baroda Lamp Works, Kural Village, Taluka: Padra, Jambusar Road, District: Baroda-391430, Gujarat, India; 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 THE INVENTION
This invention relates to the field of mechanical engineering and mechanical assemblies.
Particularly, this invention relates to lamp making machines.
More particularly, this invention relates to mount machines for GLS lamp making.
Specifically, this invention relates to a filament pick-up assembly.
BACKGROUND OF THE INVENTION
Invention of electricity and its harnessing systems led the way for lighting or illuminating objects to provide light in darkness. Lamps, tubes, bulbs, LEDs, are all progressive illuminating materials.
The incandescent light bulb, incandescent lamp or incandescent light globe makes light by heating a metal filament wire to a high temperature until it glows. The hot filament is protected from air by a glass bulb that is filled with inert gas or evacuated. There are GLS lamps where GLS stands for General Lighting Service (lamp/bulb). They are the standard light bulbs that one uses in typical domestic environments. Edison's version of a light bulb outstripped other light bulbs and was a sustainable bulb.
Typically, incandescent light bulbs consist of a glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric

current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament. Incandescent light bulbs usually contain a stem or glass mount anchored to the bulb's base that allows the electrical contacts to run through the envelope without gas/air leaks. Small wires embedded in the stem in turn support the filament and/or its lead wires. The bulb is filled with an inert gas such as argon to reduce evaporation and prevent oxidation of the filament.
In manufacturing the glass bulb, a 'mount machine' is used which mounts the filament on to its supports which are then assembled on a glass stem, which is fused to the bulb. The air is pumped out of the bulb, and the evacuation tube in the stem press is sealed by a flame. The bulb is then inserted into the lamp base, and the whole assembly tested.
In the mount machine, a filament loader with a filament pick-up assembly is enabled to pick up a filament and load the filament on ready stem. The filament pick-up assembly is a multiple joint unit which is difficult to fabricate.
Also, it contains many joints and bends, thus leaving gaps for allowing air to enter the vacuum state, thus resulting in frequent leakages of vacuum through joints of the pick-up assembly, and also results in an ineffective filament pick up. Further, it has been observed that the filament 'dropping' occurs due to inappropriate vacuum holding. This leaves the filament damaged and unusable.
It is difficult to replace the pick-up assembly. And there is frequent down-time, thus resulting in lesser number of good bulbs being produced.

OBJECTS OF THE INVENTION
An object of the invention is to provide an improved filament pick-up assembly which does not allow vacuum to leak out.
Another object of the invention is to provide an improved filament pick-up assembly with relatively lesser number of joints.
Yet another object of the invention is to provide an improved filament pick-up assembly with relatively lesser number of bends.
Still another object of the invention is to provide an improved filament pick-up assembly which results in better bulbs being made.
An additional object of the invention is to reduce downtime in production of bulbs.
Yet an additional object of the invention is to provide a filament pick-up assembly which is easy to replace in the filament loader of the mount machine.
SUMMARY OF THE INVENTION
According to this invention, there is provided a filament pick-up assembly for a mount machine comprising a pickup tube further comprising a substantially linear hollow tubular component with a substantially orthogonally curved end portion having a hollow tubular component adapted to form a seamless pickup assembly.

Typically, said filament pick-up assembly further comprises a displacing assembly coupled to said pickup tube such that it angularly displaces said pickup tube and said filament pick-up assembly in order to pick up a filament.
Typically, said filament pick-up assembly further comprises a displacing assembly coupled to said pickup tube, said curved end portion being placed away from at distal end of said assembly. Typically, said pickup tube is a single fabricated assembly.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Figure 1 illustrates a first isometric view of a filament pick-up assembly of the prior art;
Figure 2 illustrates a second isometric view of a filament pick-up assembly of the prior art; and
Figure 3 illustrates an exploded view of a filament pick-up assembly of the prior art.
The invention will now be described in relation to the accompanying drawings, in which:
Figure 4 illustrates a seamless pipe of the filament pick-up assembly; and
Figure 5 illustrates an isometric view of the filament pick-up assembly

DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Figure 1 illustrates a first isometric view of a filament pick-up assembly of the prior art. Figure 2 illustrates a second isometric view of a filament pick-up assembly of the prior art. Figure 3 illustrates an exploded view of a filament pickup assembly of the prior art.
Reference numeral 100 refers to the filament pick-up assembly, in general, of the prior art. In the exploded view of Figure 3 of the accompanying drawings, reference numeral 20 refers to a sub-assembly of the filament pick-up assembly which is a three-piece jointed vacuum pickup tube. In the exploded view of Figure 3 of the accompanying drawings, reference numeral 30 refers to a sub-assembly of the filament pick-up assembly which is a displacing assembly. The displacing assembly (30) angularly displaces the three-piece jointed vacuum pickup tube (20) in order to pickup a filament to be fitted in a vacuum bulb. The three-piece jointed vacuum pickup tube includes a first hollow tubular component (12) orthogonally connected to a second hollow tubular component (14). There is a third hollow tubular component (16) which is connected to a vacuum pump of creation of vacuum through the three-piece jointed vacuum pickup tube. The first hollow tubular component is adapted to pickup the filament.
According to this invention, there is provided a filament pick-up assembly for a mount machine.
Figure 4 illustrates a seamless pipe of the filament pick-up assembly. Figure 5 illustrates an isometric view of the filament pick-up assembly.

In accordance with an embodiment of this invention, there is provided a substantially linear hollow tubular component (32) with a substantially orthogonally curved end portion having a hollow tubular component (34). This provided a seamless pickup assembly.
This component (40) is coupled to the displacing assembly (30) such that it angularly displaces the filament pick-up assembly in order to pick up a filament.
The curved end portion (34) forms the part of the assembly which picks up a filament. The pickup assembly is a simple assembly, herein, and filaments are not lost due to inefficient pickup. The assembly of this invention is a seamless pickup unit and has not joints. This renders ease of fabrication. Also, it renders ease of replacement of the filament pickup assembly on the mount machine. This results in reduction in downtime and reduction in wastage of filament during pickup.
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 filament pick-up assembly for a mount machine comprising a pickup tube further comprising a substantially linear hollow tubular component with a substantially orthogonally curved end portion having a hollow tubular component adapted to form a seamless pickup assembly.
2. An assembly as claimed in claim 1 wherein, said filament pick-up assembly further comprising a displacing assembly coupled to said pickup tube such that it angularly displaces said pickup tube and said filament pick-up assembly in order to pick up a filament.
3. An assembly as claimed in claim 1 wherein, said filament pick-up assembly further comprising a displacing assembly coupled to said pickup tube, said curved end portion being placed away from at distal end of said assembly.
4. An assembly as claimed in claim 1 wherein, said pickup tube is a single fabricated assembly.