|Title of Invention||
A MODERN WORK BENCH WITH TURN TABLE & PRODUCTION OF JEWELRY USING THE SAME
|Abstract||This invention pertains to the method of production of Jewelry using a modern workbench, which works on a turntable principle where two work stations for filing and polishing the jewelry are placed opposite to each other on a single structure. The work bench is mounted on MS structure and the jewelry piece is filed using standard files, then it undergoes a process of buffing whereby the brushes and the buffs mounted on a pneumatic hand piece are rubbed on the jewelry. After the filing process is done, the jewelry piece is subjected to polishing in an acrylic work box where polishing compound is applied to the jewelry which is polished with brushes of various sizes and finer polish is undertaken by applying red rouge and moving the jewelry piece along the buff.|
|Full Text||FORM 2
THE PATENTS ACT, 1970
A MODERN WORK BENCH WITH TURN TABLE & PRODUCTION OF JEWELRY USING THE SAME
TARA ULTIMO PRIVATE LIMITED
REGISTERED OFFICE AT
PLOT NO 29 (P) & 30 (P), SUB PLOT 'A', SEKPZ SEZ,
ANDHERI (EAST), MUMBAI - 400 096.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THIS INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED:
This invention pertains to a modern workbench with turntable used in the production of jewelry and production of jewelry using the same. As is well known, jewelry manufacturing is a labor intensive process and is undertaken only by skilled craftsmen and workers who would carve out a piece of jewelry from a metal block or a metal strip or by assembling two or more components using hand tools operated on a general work bench. Such craftsmen have all round skills; however the output of such craftsmen would generally be very low. In present times and with a competitive market, a manufacturer is now called upon and required to produce thousands of identical jewelry pieces within a short period of time. There was thus a need to turn the manufacturing of jewelry into an organized manufacturing industry. In such a case various process departments were created and placed depending upon the process flow of product. In this scenario the jewelry piece is expected to pass through various process departments in order to have defined production rate with defined level of quality. Evolution of this industry created specialized workmen for each specific process. Thus resulting in the creation of workbenches or workstations for each specific process of manufacture.
In mass manufacturing of jewelry, craftsman's production rate and quality depends on the quality of input from the previous department. This process of manufacturing resulted in inefficiencies like increased lead-time, large work in process stocks, rework, worker's idle time etc. Thus the need arose for multi-skilled workmen who could perform at least those operations, which are similar in nature for instance the job of filing and polishing of the metal. This resulted in the need to have a worktable, which could provide the function of filing and polishing by a single individual craftsman.
The workbench according to the said invention works on the turntable principle where two work stations for filing and polishing are placed
opposite to each other on a single structure. The craftsmen can turn the oval turn top to face either of the workstations.
Conventional workbench for filing of metal has a steady table with two side drawers and one central drawer. Each table has an individual lamp and the bench is attached to an overhead electric motor with flexible shaft where tools can be attached to the hand piece. A conventional workbench for polishing of metal consists of an acrylic box with a light fitting. A dust collection vent hole is also cut from the bottom. The electric motor with a threaded end shaft is located with respect to acrylic box. The whole structure is supported on a wooden platform.
The working principle of the workbench under this invention is such that the workbench is mounted on MS structure (1) welded to each other. The whole structure is steady enough to withstand the working force during craftsmanship. The support structure's height is designed considering the ergonomics of the craftsmen to have desired comfort. The MS structure also houses two drawers (5) to keep tools and consumables and one central drawer (6) for gold dust collection.
The jewelry piece, which has to be filed and polished, has a rough layer of casting skin. This piece is first subject to remove the casting sprues from the jewelry on the motorized emery wheel. Thereafter the casted pieces are put for magnetic tumbler for at least 30 minutes. In this process rough casting scale is burnished with rotating pins and we get a clear shiny surface for initiating filing operation on the turn table work bench.
Filing is a process of creating an intermediate level of finished surface from the tumbled jewelry pieces. Filing operation is conveniently done on the
turntable workbench by clamping both the toggle clamps (17) (supported on MS plate 12) on the oval turn top (2). The lights of the filing workstation are then switched on. The jewelry piece is held with one hand on the G.B./ wooden wedge (03) and standard files are used to bring geometry on the work piece. During filing the hands can be supported on hand rest (16). Since GB is located exactly above the centre drawer (4), the gold dust gets collected in it. Once the initial filing is completed, the buffing wheels or brushes are mounted on the hand piece. The piece is held with one hand and the buffs and brushes are rubbed on the surface of the jewelry. The right shape and size of buff is selected depending upon the surface area to be finished. Burrs are mounted on the hand piece to finish intricate shapes and diamond areas. Many jewelry components like filigree, centre head, earring posts need to be joined to basic casted jewelry by a soldering process. Here the work piece needs to be heated and fluxed. The soldering material is applied between the joining parts. In order to avoid the damage on the workbench due to application of flame of the gas torch* a MS soldering plate (11) in fixed on the wooden top of the MS frame. The gas torch can be supported on Gas torch stand (7). The soldering done is then cleaned with the buffs and brushes.
The lablc is then turned from filing station to polishing station wherein it is at first essential to confirm that the mechanical machines and hand piece are not in motion. There has to be no extra material on the path of movement rotation of oval top. The lights of filing workstation are switched off, as it is no more in use. The toggle clamps (17) are then undamped the oval top is pulled anti clock wise for shifting from filing to polishing work table. Here the oval top will rotate along tie bearing (13) and over the wooden packing (14), which provides a steady support to the oval top. The toggle clamp (17) is then fixed and the lights of the polishing workstation are switched on.
Polishing creates a glittering smooth surface on the filed surface. Polishing workstation also has an acrylic box (15) in front, where all the polishing brushes and buffs can be placed.
The brushes hub is inserted on the taper end of the shaft. The work piece area is moved along with the rotating brush. Polishing compound is then applied while brushing. Various sizes and shapes of brushes can be inserted depending upon the area to be polished and intricacy of the design. Once brushing is done, polishing buffs can be inserted on the taper shaft. The worker can apply finer grit of polishing compounds to bring the glitter on the surface of the jewelry. Final polishing can be done in the similar manner with buff by applying red rouge and moving the work piece along the buffs.
The casted jewelry can have metal defects like pinholes and porosity. These defects can only be seen on the surface after the polishing of the jewelry done. These defects are repaired on the filing workstation by soldering and burnishing method. Conventionally the repairs are again sent back to filing department, which consumes additional lead-time and efforts. One of main advantage of Turn table work bench is the worker is trained for both the filing and once he identifies any surface defects, he just needs to turn the work station for filing and immediately repair the piece. Hence the facility only saves time and improves quality of the work piece.
1. A modern work bench with turn table for the production of jewelry comprising a MS structure (1) welded to each other, a MS plate (12) supported on the said structure, the whole structure is sturdy enough to withstand the working force during craftsmanship, the support structure's height is designed considering the ergonomics of the craftsmen to have desired comfort, a rotatable oval turn top (2) mounted on the said plate, the oval top rotates along the bearing (13) and over the wooden packing (14) which provides a steady support to the oval top, t.wo work stations for filing and polishing the jewelry are placed opposite to each other on a single structure(15) and the said structure is mounted on the oval top, two drawers (5) being provided to keep tools and consumables, one central drawer (6) also provided for gold dust collection, two toggle clamps (17) being supported on MS plate (12) to arrest the rotation of the oval turn top (2) and fix it, a G.B./ wooden wedge (03) for holding the jewelry piece on it with one hand , the GB is located exactly above the central drawer (6),so that the gold dust produced during filing gets collected in the center drawer, a hand rest (16) fixed to the central drawer for supporting the hands during filing, a MS soldering plate (11) fixed on the wooden top of the MS frame, a Gas torch stand (7) to support a soldering torch .
2. Production of jewelry using a modern work bench with turn table of claim 1 comprising the steps of mounting the work bench on a MS structure by clamping the toggle clamps on the oval turn top; switching on the light and filing the jewelry piece using standard files, buffing the said piece by rubbing it with the brushes and the buffs mounted on a pneumatic hand piece , turning the table without leaving his seat and then polishing the already filed piece in an acrylic work box where polishing compound is applied to the jewelry and which is polished with brushes of various sizes
and finer polishing the same by applying red rouge and moving the jewelry work piece along the buff.
3. Production of jewelry as claimed in claim 2, wherein the task of filing and polishing of jewellery can be performed by a craftsman wherein upon finishing the filing operation, he has to just turn the table without leaving his seat and undertake the polishing operation.
4. Production of jewelry as claimed in claim 2, wherein any casting defect in the jewellery is removed by burnishing or soldering of the jewellery after which the workbench is turned 180 degrees so as to undertake the filing and polishing operation respectively.
5. A modern work bench with turn table for the production of jewelry as substantially described here in with reference to the accompanying drawings.
Dated this 30th day of July 2000.
For Tara Ultimo Pvt. Ltd., By their Advocates/Attorneys,
|Indian Patent Application Number||814/MUM/2004|
|PG Journal Number||14/2010|
|Date of Filing||30-Jul-2004|
|Name of Patentee||TARA ULTIMO PRIVATE LIMITED|
|Applicant Address||PLOT NO 29(P), & 30(P) SUB PLOT 'A', SEEPZ SEZ, ANDHERI (E), MUMBAI-400 096, INDIA.|
|PCT International Classification Number||A47B57/00|
|PCT International Application Number||N/A|
|PCT International Filing date|