A flatcon shell metal drum component having dumbbell shaped edges and an apparatus for making the same

Abstract

The present invention relates to a flatcon shell metal drum component having dumbbell shaped edges (100). The present invention also relates to an apparatus for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100) and a method for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100). The said flatcon shell metal drum component having dumbbell shaped edges (100) enables shipping of drum parts in dis-assembled condition and reassembling them at a location required, whereby solving the problem of shipping empty drums or barrels in bulk while saving huge shipping costs by optimizing effective use of transport space.

Description

[0001] TITLE OF THE INVENTION “A FLATCON SHELL METAL DRUM COMPONENT HAVING DUMBBELL SHAPED EDGES AND AN APPARATUS FOR MAKING THE SAME”

[0002] DESCRIPTION FIELD OF THE PRESENT INVENTION The present invention relates to a flatcon shell metal drum component having dumbbell shaped edges (100). The present invention also relates to an apparatus for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100) and a method for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100). The said flatcon shell metal drum component having dumbbell shaped edges (100) enables shipping of drum parts in dis-assembled condition and reassembling them at a location required, whereby solving the problem of shipping empty drums or barrels in bulk while saving huge shipping costs by optimizing effective use of transport space. BACKGROUND OF THE PRESENT INVENTION Metal or steel drums or containers in the volume size of 150L to 280L are used for the storage and transportation of semi-solid or liquid. In most of the cases, the transportation of Containers, such as steel / metal drums, is regularly done on a large scale through sea-shipping or through road transport. There are mainly three components used in the manufacturing of closed empty drum or container. First is the middle drum component which is a circular or round body hollow shell; the second component is a lid to close the top portion of the middle drum component; and the third component is a bottom portion which is affixed tightly to the bottom of the middle drum component and ensures leakage proof fixation. Containers such as metal or steel drums are generally manufactured by affixing or seaming top and bottom components to a drum shell component or body with the resulting assembled drum and shipped as an empty container to user location. Empty containers such as metal or steel drums are expensive to transport because of the space which they consume. Thus, the cost of metal or steel drums can be high if they are manufactured and shipped empty from a remote site to be filled. Further, the transportation of assembled drums involves substantial freight charges due to the void volume of the empty containers and thus involves huge shipping costs in transportation. There are several references available who have attempted in providing the solution for metal or steel drum transportation by changing the shape of the cylindrical or tubular shell component. US4413400A has disclosed a novel apparatus and process for nesting a plurality of drum bodies or shells of deformable material wherein a cylindrically-shaped drum body is subjected to a force in a plane substantially parallel to the axis of the drum body to deform the drum body to the extent necessary to permit the positioning of a second drum body about the initially deformed drum body whereupon the deforming procedure is repeated for the nested first and second drum bodies, and is thereafter again repeated until a desired number of drum shells are contained in the resulting nested assembled of drum bodies or shells. The invention allows easy reassembly of the components unlike in the earlier system where either shell is de-nested manually which creates safety hazards and also risks coating scratches or with complicated de- nesting automation. The invention also incorporates use of multiple types of paints namely Polyurethane, Polyester, clear top coat topcoat lacquer and combination of others linings inside of a drum body for a single drum body to address the issue of paint peeling while seaming (Joining top and bottom lids to a drum body) as well as rusting while being as high seas for prolonged amount of time subject to high moisture added with salt alkali. US2006277742A1 has disclosed a method of manufacturing the body of drum kit, the said method includes the steps of rolling a flat, unpainted metal sheet (10) to a cylindrical form (12) and welding free edges (14) of the form to produce a cylindrical body (18). This body is temporarily stiffened and paint is applied to the exterior of the temporarily stiffened body. Thereafter the body is de-stiffened before it is deformed to a suitable shape for nesting with other such bodies. In the prior art technologies, sirco drum technology is used for producing metal or steel drums. In case of the so-called Sirco drum, to produce drum kits having three separate components, namely a tubular body, a top end and a bottom end. The kits are supplied to the customer who then assembles the drums as required. A problem which arises in the use of the Sirco system is that the weld is unsightly and destroys the continuity of the originally applied paintwork, often necessitating a localized touch-up of the paint. This is particularly problematical in situations where the body is painted different colours in different regions along its length, for instance where a central region of the body is to be one colour or carries screen-printed markings and end regions are to be another colour. The end result is invariably unsightly. In situations where one surface of the initial flat sheet is precoated with a rust inhibitor or other treatment, the further problem which arises is that the protection provided by the internal coat is discontinuous at the weld, leading to the possibility of localized internal corrosion in this region if a subsequent step to coat the weld line is not undertaken. As the demand of metal or steel drums in the volume size of 150L to 280L is very high and due to multiple disadvantages and problems in nesting / stacking and transporting metal or steel drums, it is need of an hour to provide a solution that will overcome the issues regarding nesting / stacking of multiple drums at a time and transporting metal or steel drums in a safer and convenient manner which further helps in saving time, labor and money associated in stacking and transporting metal or steel drums from one location to another location. OBJECTIVES OF THE PRESENT INVENTION The principal objective of the present invention is to obviate the problems faced by the prior art technologies. There is an objective to provide a flatcon shell metal drum component having dumbbell shaped edges. It is an objective to provide an apparatus for manufacturing a flatcon shell metal drum component having dumbbell shaped edges. It is also an objective to provide a method for manufacturing a flatcon shell metal drum component having dumbbell shaped edges. There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated. DETAILED DESCRIPTION OF DRAWINGS The invention is further described by way of example with reference to the annexed drawings, in which Figure 1 to 11(C) are described as follows. The drawing provided here should not be construed as final and detailed embodiments along with the required drawings have been provided in the detailed description of the said patent application. Figure-1: Perspective view of flat shaped shell metal drum component having dumbbell shaped edges as per the present invention. Figure-2: Front view of dumbbell shaped shell metal drum component as per the present invention. Figure-3: Top view of dumbbell shaped shell metal drum component as per the present invention. Figure-4: Cut view of figure-3 showing rolled corner (detailed A) of dumbbell shaped shell metal drum component as per the present invention. Figure-5: Perspective view of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-6: Front view of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-7: Top view of Linear travel assembly of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-8: Front view of Linear travel assembly of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-9: Flattening Roller assembly of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-10: Pusher assembly of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-11(A): Step-1 of a method of making flatcon shell drum component with dumbbell shaped edges using the said apparatus. Figure-11(B): Step-2 of a method of making flatcon shell drum component with dumbbell shaped edges using the said apparatus. Figure-11(C): Step-3 of a method of making flatcon shell drum component with dumbbell shaped edges using the said apparatus. DETAILED DESCRIPTION OF THE PRESENT INVENTION The present invention relates to a flatcon shell metal drum component having dumbbell shaped edges. The present invention also relates to an apparatus for manufacturing a flatcon shell metal drum component having dumbbell shaped edges and a process for manufacturing a flatcon shell metal drum component having dumbbell shaped edges. For the purpose of making a flatcon shell metal drum component having dumbbell shaped edges, round shell as a middle drum component is selected from the metal or steel drum having a volume capacity of a drum shell between 150L to 280L. As per the prior art technologies, there are mainly three components used in the manufacturing of closed empty drum having a volume capacity between 150L to 280L. First is the middle drum component which is a circular or round body hollow shell; the second component is a lid to close the top portion of the middle drum component; and the third component is a bottom portion which is affixed tightly to the bottom of the middle drum component and ensures leakage proof fixation. Prior art technologies have provided several solutions for transporting empty drums through sea-route or via road transportation. One is providing closed empty drums with all three components for transportation purpose. Second solution is to separately transporting middle drum component in either round or circular shape or knock-down shape along with top and bottom components and all three components may be affixed after it reaches to a final destination. In both the cases, transporting empty drums requires lot of spaces and involves higher expenses that makes the above solutions commercially not viable options while transporting the drums from one place to another. Further, there are higher chances of deterioration or damage of painting or coating of inner or outer portion of the painted drums if painted drum components are transported from one place to another. The present invention is an attempt for providing a concrete solution for above problems in stacking and transporting the drum components wherein round or circular shaped middle drum component selected from the metal or steel drum having the volume capacity between 150L to 280L is converted into a flatcon shell metal drum component having dumbbell shaped edges at both the sides, the flat shaped metal drum component with dumbbell shaped edges of the present invention makes possible of stacking a plurality of drums with dumbbell shaped edges, one on another or next to each other laying vertically or horizontally. In the first embodiment of the present invention, there is provided a flatcon shell metal drum component having dumbbell shaped edges (100). Figure-1 shows a schematic drawing of a flat shaped metal drum component with dumbbell shaped edges (100) as per the present invention. The size of a middle component i.e. round shell of a metal or steel drum for the purpose of converting it into a flatcon shell metal drum component is selected from: Vertical length: between 800mm to 1090mm Figure-2(a) shows top view of a flatcon shell metal drum component having dumbbell shaped edges (100), figure-2(b) shows cut view of drum component (101a) with dumbbell shaped edges as per the present invention, figure-3 shows front view of a flatcon shell metal drum component having dumbbell shaped edges (100) and figure-4 shows cut view of figure-3 showing rolled corner (detailed A) of dumbbell shaped shell metal drum component as per the present invention. Referring figure-1 to 4, a flatcon shell metal drum component having dumbbell shaped edges (100) comprises dumbbell shaped edges (101a & 101b) on both the sides having middle portion (102) in a flat shaped condition. The flatcon shell metal drum component having dumbbell shaped edges (100) made from a round shell is having following parameters: Vertical length: between 800mm to 1090mm Width: 850mm to 920mm Diameter of dumbbell shaped edges on each size (Detail A): 15mm to 25mm. According to another aspect of the present invention, middle portion (102) of drum component (100) is flattened together with minimum possible gap on opposite sides of dumbbell shaped edges to avoid abrasion facilitating peeling of internal lining along with storing of maximum possible numbers of drum components in a specified space. This can include nesting or stacking of flat shaped metal drum components (100) adjacent to each other to optimize the space while transportation. In the second embodiment, there is provided an apparatus (200) for manufacturing a flatcon shell metal drum component having dumbbell shaped edges (100). Figure-5: Perspective view of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Referring figure-5, An apparatus (200) for making a flatcon shell metal drum component having dumbbell shaped edges (100) comprises: Linear travel assembly (300); Flattening Roller assembly (400); Pusher assembly (500) Characterized in that Linear travel assembly (300) comprises a means for linear guiding force (301), a linear guide frame (302) for movement of means for linear guiding force (301) in forward and backward direction from one end (302a) to another end (302b) between the linear guide frame (302); Flattening Roller assembly (400) comprises 2 flattening rollers (401a and 401b) vertically placed in a support frame (402), a support frame (402) affixed to a linear guide frame (302) of linear travel assembly (300); Pusher assembly (500) adjacent to flattening roller assembly (400) comprises a vertically placed flat frame (501) having a round shaped metal rod (502) fixed onto the front edge (501a) of flat frame (501), a guiding roller (503) affixed to the bottom portion (501b) of a flat frame; a guiding roller (503) affixed to a means for linear guiding force (301) of a linear guiding assembly, wherein the said Pusher assembly (500) is able to pass through between 2 flattening rollers (401a and 401b) and move freely from one end to another end with the help of guiding roller (503) affixed to a means for linear guiding force (301) of linear travel assembly (300). According to the second embodiment, mainly three parts of an apparatus have been disclosed i.e. (1) Linear travel assembly (300), (2) flattening roller assembly (400) and (3) pusher assembly (500). Each part is now explained in detail, as under:1. Linear travel assembly (300):Figure-5: Perspective view of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-6: Front view of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Figure-7: Top view of Linear travel assembly of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. And Figure-8: Front view of Linear travel assembly of an apparatus for making flatcon shell with dumbbell shaped edges as per the present invention. Referring to Figure-5 & 6, there is provided an apparatus (200) for making flatcon shell with dumbbell shaped edges (100) as per the present invention in which Linear travel assembly (300) is shown. Referring to figure-5,6, 7 & 8, linear travel assembly (300) comprises a means for linear guiding force (301) and a linear guide frame (302) for movement of means for linear guiding force in forward and backward direction from one end (302a) to another end (302b) between the linear guide frame (302). A means for linear guiding force (301) is free to move on linear guide frame (302) through which the movement of means for linear guiding force in forward and backward direction from one end (302a) to another end (302b) between guide frame (302) get enabled. In the present invention, force is required for making a flatcon shell with dumbbell shaped edges (100) in which the round shell drum component of a volume capacity selected from 150L to 500mm having vertical length between 800mm to 1090mm is kept on the pusher assembly (500), the said pusher assembly (500) is passed through flattening roller assembly (400) to convert the round shell drum component in to flatcon shell drum component having dumbbell shaped edges (100). The said force is provided by means for linear guiding force (301). A means for linear guiding force (301) may be selected from commercially available pneumatic or hydraulic actuator, electric actuator or may be a mechanism of providing mechanical force. In pneumatic linear actuator, the force is created by pressure acting on the surface area of a piston while in electric actuators, the force is generated from the torque capability of the motor. Pneumatic or hydraulic actuators are devices that convert the energy of compressed air or gas into a mechanical motion that regulates one or more final control elements and an electric actuator is a device that can create movement of a load, or an action requiring a force, using an electric motor to create the necessary force.Flattening roller assembly (400):Referring figure-5, 6 & 9, an apparatus (200) for making a flatcon shell drum component having dumbbell shaped edges (100) has disclosed flattening roller assembly (400) as a second part. The said flattening roller assembly (400) comprises 2 flattening rollers (401a and 401b) vertically placed in a support frame (402) and a support frame (402) affixed to a linear guide frame (302) of linear travel assembly (300). Accordingly, 2 flattening rollers (401a and 401b) are aligned in a support frame (402). Vertical length of both rollers (401a and 401b) is kept between 950mm to 1100mm while the radius or diameter is kept between 60Ø to 150Ø. A gap (P1) of 14mm to 26mm is kept between the rollers (401a and 401b) to be able to pass through the flat frame (501) of pusher assembly (500) between the rollers (401a and 401b). These 2 rollers (401a and 402b) are made of metal, steel or hard plastic which can bear the force generated by actuator (301) and making the flattening process of round shell in easy and convenient manner. The support frame (402) is affixed to a linear guide frame (302) of linear travel assembly (300). The said support frame (402) is affixed through welding it to linear guide frame (302) or optionally, it can be affixed using nuts and bolts as per the user requirement. The said support frame (402) is affixed in such a way that it can bear the force generated by an actuator and easily and conveniently allow the pusher assembly (300) with a round shell drum component to pass through from the vertically placed flattening rollers (401a and 401b) and thus playing an important role in converting the round shell drum component in to flatcon shell drum component having dumbbell shaped edges (100). Support frame (402) is made of metal or steel and vertical length / height of the support frame (402) is kept as per the user requirement, preferably vertical length of the support frame (402) is kept between 1100mm to 1150mm.Pusher assembly (500):Referring figure-5, 6 & 10, an apparatus (200) for making a flatcon shell drum component having dumbbell shaped edges (100) has also disclosed a pusher assembly (500) as a third part. Pusher assembly (500) is vertically placed adjacent to flattening roller assembly (400). There is a gap (P2) of 110mm to 140mm is kept between the pusher assembly (500) and flattening roller assembly (400) that will allow to keep the round shell between pusher assembly (500) and flattening roller assembly (400) for the purpose of flattening the round shell. The said pusher assembly (500) comprises a vertically placed flat frame (501) having a round shaped metal rod (502) fixed onto the front edge (501a) of flat frame (501), the said flat frame (501) is affixed to a guiding roller (503); a guiding roller (503) affixed to a means for linear guiding force (301) of a linear guiding assembly (300). A round shaped metal rod (502) is welded on to the front edge (501a) of flat frame (501) and bottom portion (501b) of flat frame (501) is affixed to a guiding roller (503) as shown in figure-6. Affixing of a guiding roller (503) to a flat frame (501) may be done in either ways like (i) upper portion (503a) of the guiding roller (503) is welded to the bottom portion (501b) of flat frame (500) or (ii) it may optionally be affixed with the help of bolts and nuts as shown in figure-6 & 10. Guiding roller (503) is selected from a metal or steel pipe wherein the upper portion (503a) of guiding roller (503) is affixed to a bottom portion (501b) of a flat frame (501) while the lower portion (503b) of guiding roller (503) is affixed to a means for linear guiding force (301) of a linear guiding assembly (300). In the present invention, the length of guiding roller is dependent on the bottom length of flat frame and so the length of guiding roller is kept identical to the bottom length of flat frame which is selected between 200mm to 400mm. Affixing of guiding roller (300) to a means for linear guiding force (301) is done either by welding the lower portion (503b) of guiding roller (503) directly with the front-top portion (301a) of a means for linear guiding force (301) or it may be affixed with the use of nuts and bolts. Pusher assembly (500) is made in house as per the user requirement. In the present invention, the vertical length / height of flat frame (501) and round shaped metal rod (502) is kept between 950mm to 1100mm. It is to be noted that the diameter of dumbbell shaped edges (102a and 102b) of flattened shell metal component (100) is dependent on the diameter or radius of a metal rod (502) so the diameter or radius of a round shaped metal rod (502) is kept between 5mm to 12.5mm as per the user requirement. A flatcon shell drum component having dumbbell shaped edges (100) is made as per the user requirement which is dependent on the volume, size and diameter of the round shell drum component. Round shell drum having volume capacity between 150L to 280L and vertical Length between 800mm to 1090mm is used for flatcon shell manufacture purpose. Similarly, an apparatus (200) for making A flatcon shell drum component having dumbbell shaped edges is also be made as per the user requirement which is dependent on the volume, size and diameter of the round shell drum component. All the important parameters, criteria related to a flatcon shell drum component having dumbbell shaped edges (100) and an apparatus for making a flatcon shell drum component having dumbbell shaped edges (100) have already been defined and described in the aforementioned paragraphs. According to the third embodiment, there is also provided a method for manufacturing a flatcon shell metal drum component having dumbbell shaped edges using the disclosed apparatus (200). The method of manufacturing is carried out in three different steps: Figure-11(A): Step-1 of a method of making flatcon shell drum component with dumbbell shaped edges using the said apparatus. Figure-11(B): Step-2 of a method of making flatcon shell drum component with dumbbell shaped edges using the said apparatus. Figure-11(C): Step-3 of a method of making flatcon shell drum component with dumbbell shaped edges using the said apparatus. A general method is provided as under: According to the Figures 11(A) to 11(C), the said apparatus (200) is useful in making or converting round shell metal drum component to a flat shell metal drum component having dumbbell shaped edges (100). Once the round shell is placed between pusher assembly (500) and flattening roller assembly (400) [Figure-11(A)], Pusher assembly (500) along with the round shell passes through between 2 flattening rollers (401a and 401b) with the help of a means for linear guiding force (301) of linear travel assembly (300) [Figure-11(B)] and makes it possible of converting round shaped shell into a flat shell metal drum component having dumbbell shaped edges (100) [Figure-11(C)]. The present invention makes it possible for nesting / stacking of multiple drums at a time and transporting metal or steel drums in a safer and convenient manner which further helps in saving time, labor and money associated in stacking and transporting metal or steel drums from one location to another location. ADVANTAGES OF THE PRESENT INVENTION The present invention enables nesting / stacking of multiple drums at a time and transporting metal or steel drums in a safer and convenient manner which further helps in saving time, labor and money associated in stacking and transporting metal or steel drums from one location to another location. The present invention enables shipping of drum parts in dis- assembled condition and reassembling them at a location required, whereby solving the problem of shipping empty drums or barrels in bulk while saving huge shipping costs by optimizing effective use of transport space. NAME OF COMPONENTS AND REFERENCE NUMERALS Reference Name of Component(s) Numeral 100 Flat shaped metal drum component with dumbbell shaped edges 101a & 101b Dumbbell shaped edges 102 Middle portion of drum component (Round shell) 200 An apparatus for making flatcon shell drum component having dumbbell shaped edges 300 Linear travel assembly 301 A means for linear guiding force 301a Front-top portion of linear guiding force 302 A linear guide frame 302a One end of linear guide frame 302b Another end of linear guide frame 400 Flattening roller assembly 401a and 401b Flattening rollers P1 Gap between 2 rollers (401a and 401b) P2 Gap between flat frame (501) and flattening rollers (401a and 401b) 402 Support frame 500 Pusher assembly 501 Flat frame 501a Front edge of flat frame 502 Round shaped metal rod 501b Bottom portion of flat frame 503 Guiding roller 503a Upper portion of guiding roller 503b Bottom portion of guiding roller Detail-A Showing diameter of dumbbell shaped edge of a flatcon shell

Claims

We claim:

1. A flatcon shell metal drum component having dumbbell shapededges (100) comprises dumbbell shaped edges (101a & 101b) on both the sides having middle portion (102) in a flat shaped condition.

2. The flatcon shell metal drum component having dumbbell shapededges (100) as claimed in claim-1 wherein a flatcon shell having vertical length between 800mm to 1090mm, width between 850mm to 920mm and diameter of each dumbbell shaped edges between 15mm to 25mm.

3. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) having vertical length between 800mm to 1090mm, width between 850mm to 920mm and diameter of each dumbbell shaped edges between 15mm to 25mm comprises: Linear travel assembly (300); Flattening Roller assembly (400); Pusher assembly (500), characterized in that Linear travel assembly (300) comprises a means for linear guiding force (301) to provide force for the movement of pusher assembly (500), a linear guide frame (302) for movement of means for linear guiding force (301) in forward and backward direction from one end (302a) to another end (302b) between the linear guide frame (302); Flattening Roller assembly (400) comprises 2 flattening rollers (401a and 401b) having a gap (P1) of 14mm to 26mm in between the rollers (401a and 401b) vertically placed in a support frame (402) for flattening the round shell and to make a flatcon, shell metal drum component having dumbbell shaped edges (100), a support frame (402) to support flattening rollers (401a and 401b) affixed to a linear guide frame (302) of linear travel assembly (300); Pusher assembly (500) adjacent to flattening roller assembly (400) having a gap (P2) of 110mm to 140mm between pusher assembly(500) and flattening roller assembly (400) comprises a vertically placed flat frame (501) having a round shaped metal rod (502) fixed onto the front edge (501a) of flat frame (501), a guiding roller (503) in which upper portion (503a) of guiding roller (503) affixed to a bottom portion (501b) of a flat frame (501) and the lower portion (503b) of guiding roller (503) affixed to a means for linear guiding force (301) of a linear guiding assembly (300), The said Pusher assembly (500) is able to pass through between 2 flattening rollers (401a and 401b) and move freely from one end to another end with the help of guiding roller (503) affixed to a means for linear guiding force (301) of linear travel assembly (300).

4. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein the length of linear guide frame (302) is between 1550mm to 1650mm.

5. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein a means for linear guiding force (301) is selected from pneumatic or hydraulic actuator, electric actuator or a mechanism of providing mechanical force.

6. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein vertical length of flattening rollers (401a and 401b) is between 950mm to 1100mm.

7. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein radius of flattening roller (401a and 401b) is between 60Ø to 150Ø.

8. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim-3 wherein vertical height of support frame (402) is between 1100mm to 1150mm.

9. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein vertical length of flat frame (501) is between 950mm to 1100mm.

10. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein diameter of a round shaped rod (502) is between 5mm to 12.5mm.

11. An apparatus (200) for making a flatcon shell metal drumcomponent having dumbbell shaped edges (100) as claimed in claim- 3 wherein length of guiding roller (503) is between 200mm to 400mm.

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