DESC:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION
(See Section 10 and Rule 13)

Title of invention:
A DEVICE FOR MARKING CORRESPONDING PARALLEL OFFSET PROFILES FROM THE PROFILED EDGE OF A COMPONENT

Applicant:
Mazagon Dock Shipbuilders Limited
A company Incorporated in India under the Companies Act, 1956
Under Ministry of Defence,
(A Govt. of India Undertaking)
Having address:
Dockyard Road, Mazagon,
Mumbai - 400010, Maharashtra, India

The following specification particularly describes the invention and the manner in which it is to be performed.

CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
[001] The present application claims priority from Indian provisional application no. 201921001657 filed on 14th January 2019.
TECHNICAL FIELD
[002] The present subject matter described herein, in general, relates to a device for marking parallel offset profiles. More particularly, the device relates to marking corresponding parallel offset profiles from the profiled edge of a component.
BACKGROUND
[003] Generally, prior to any machining operation, an operator marks profile lines on a surface of an object, using a ruler, french curves, compass, etc. When parallel offset profile lines are to be drawn with respect to the edges of the object and the length of the parallel profile line to be drawn is of greater magnitude, the rules or scales currently used are of limited size, which restricts or prevents marking of parallel offset profile lines in a single stroke. Thus, due to limited size of the scale or the ruler, the parallel line of greater magnitude has to be drawn in several strokes. This activity is time consuming and relies heavily on the skill of the operator to ensure accuracy. Also, when a regular or an irregular profile has to be replicated on a curved surface such as the hull of a ship, the currently used tools fails to enable ease of operation and accurate replication of the profile. So a device should be developed to accurately mark the parallel offset profile lines with ease on the component.
SUMMARY OF THE INVENTION
[004] Before the present system and method are described, it is to be understood that this application is not limited to the particular machine or an apparatus, and methodologies described, as there can be multiple possible embodiments that are not expressly illustrated in the present disclosures. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only, and is not intended to limit the scope of the present application. This summary is provided to introduce aspects related to a device for marking, and the aspects are further elaborated below in the detailed description. This summary is not intended to identify essential features of the proposed subject matter nor is it intended for use in determining or limiting the scope of the proposed subject matter.
[005] A device for marking corresponding parallel offset profiles from the profiled edge of a component is disclosed. The device comprises a hand piece (1), a scriber (4) mounted on the hand piece (1), at least one bearing (5) secured to the hand piece (1) and configured to permit movement of the hand piece (1), at least one connecting plate (6) configured to be mounted on said bearing (5) and a wing nut (8) configured to adjust the distance of the scriber (4) for marking the parallel offset profiles.
[006] The present subject matter described herein, in general, relates to device for marking.
OBJECT OF THE INVENTION
[007] The main object of the present disclosure is to provide a device to enable marking of parallel offset profiles from the profiled edge of a component.
[008] Another object of the present disclosure is to enable offset profile markings based on existing profile.
[009] Yet another object of the present disclosure is to enable marking of reference points on irregular or uneven or profiled surface.
[0010] Another object of the present disclosure is to enable marking of offset line on straight or curved surface edge.
[0011] Yet another object of the present disclosure is to enable marking on elliptical opening.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The foregoing summary, as well as the following detailed description of embodiments, is better understood when read in conjunction with the appended drawing. For the purpose of illustrating the disclosure, there is shown in the present document example constructions of the disclosure, however, the disclosure is not limited to the specific methods and apparatus disclosed in the document and the drawing:
[0013] The detailed description is described with reference to the accompanying figure. In the figure, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawing to refer like features and components.
[0014] Figure 1 illustrates an exploded view of the device for marking corresponding parallel offset profiles from the profiled edge of a component, in accordance with an embodiment of the present subject matter.
[0015] Figure 2 illustrates an assembled view of the device for marking corresponding parallel offset profiles from the profiled edge of a component, in accordance with an embodiment of the present subject matter.
[0016] Figure 3 illustrates an assembled view of the device for marking corresponding parallel offset profiles from the profiled edge of a component, in accordance with an embodiment of the present subject matter.
[0017] The figure depicts various embodiments of the present disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following discussion that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION
[0018] Some embodiments of this disclosure, illustrating all its features, will now be discussed in detail. The words "comprising", “having”, and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, the exemplary, systems and methods are now described. The disclosed embodiments are merely exemplary of the disclosure, which may be embodied in various forms.
[0019] Various modifications to the embodiment will be readily apparent to those skilled in the art and the generic principles herein may be applied to other embodiments. However, one of ordinary skill in the art will readily recognize that the present disclosure is not intended to be limited to the embodiments illustrated, but is to be accorded the widest scope consistent with the principles and features described herein.
[0020] Figure 1 shows an exploded view of the device for marking corresponding parallel offset profiles from the profiled edge of a component.
[0021] Referring now to figure 2 and 3, in one aspect of present invention, a device for marking corresponding parallel offset profiles from the profiled edge of a component is disclosed. The device for marking corresponding parallel offset profiles from the profiled edge of a component comprises a connecting plate (6) configured to hold together a pair of bearings (5) below the hand piece (1). A scriber (4) is further securely mounted to a hand piece (1) by a wing nut (8). A stud (2) is configured to pass through the wing nut (8) and secure the scriber (4) to the hand piece (1). Further, the scriber (4) is slotted along its length and can be adjusted longitudinally by operating the wing nut (8) for selecting the desired marking parallel offset distance. Moreover, the scriber (4) can be adjusted to a length ranging from 5 mm to 50 mm. The scriber (4) has a marker mounted perpendicular to the scriber (4) to enable marking of line on the component. When the device is pushed by the operator to mark a parallel offset profile on the component, the bearing (5) connected to the hand piece (1) firmly contacts and follows the profile edges of the component, thereby enabling accurate marking of a continuous line by the marker of the scriber (4). Further, the marker attached to the slotted scriber for marking of parallel offset may be made of high speed steel. The bearings (5) used may be roller ball bearings.
[0022] Further, the invention can be used, but not limited to, in the following applications.
[0023] One embodiment of the invention can be used for linear marking of straight line with respect to any smooth or finished edge e.g. beams, channels, angle marking, etc.
[0024] One embodiment of the invention can be used for marking of curved surface like edge of marine vessel.
[0025] One embodiment of the invention can be used for marking on coamings, openings and penetration of pressure hull, and non-pressure hull (ballast tank).
[0026] One embodiment of the invention can be used for drawing parallel lines as references.
[0027] Exemplary embodiments discussed above may provide certain advantages. Though not required to practice aspects of the disclosure, these advantages may include those provided by the following features.
[0028] Some object of the present invention enables quick marking of parallel lines on any surface with edges.
[0029] Some object of the present invention provides operational safety.
[0030] Some object of the present invention reduces the time required for marking considerably by about 50 to 90%
[0031] Some object of the present invention provides compactness.
[0032] Some object of the present invention provides robustness.
[0033] Some object of the present invention provides ease with respect to repairing, calibrating, maintaining and replicating of the device.
[0034] Some object of the present invention permits use of the device by semi-skilled/less skilled operator.
[0035] Some object of the present invention eliminates the errors caused by the operator during manual marking.
[0036] Some object of the present invention is to make the device small, safe and portable.
[0037] List of the components of device for marking corresponding parallel offset profiles from the profiled edge of a component are mentioned in the below table.

Sr. No. Description
1 Hand Piece
2 Stud
3 Lock Nut
4 Scriber
5 Bearing
6 Connecting plate
7 Screw
8 Wing Nut
9 Washer

,CLAIMS:1. A device for marking corresponding parallel offset profiles from the profiled edge of a component comprises:
a hand piece (1);
a scriber (4) mounted on the hand piece (1);
at least one bearing (5) secured to the hand piece (1) and configured to permit movement of the hand piece (1);
at least one connecting plate (6) configured to be mounted on said bearing (5);
and a wing nut (8) configured to adjust the distance of the scriber (4).

2. The device for marking corresponding parallel offset profiles from the profiled edge of a component as claimed in claim 1, wherein marker of said scriber (4) is mounted perpendicular to the scriber (4) and configured to mark a line on the component.

3. The device for marking corresponding parallel offset profiles from the profiled edge of a component as claimed in claim 1, wherein said bearing (5) is configured to follow an edge of the profile and enable offset marking of said profile line with respect to edge of the profile.

4. The device for marking corresponding parallel offset profiles from the profiled edge of a component as claimed in claim 1, wherein said scriber (4) has a longitudial slot for varyig the offset length of the scriber (4).

5. The device for marking corresponding parallel offset profiles from the profiled edge of a component as claimed in claim 1, wherein said scriber (4) can be adjusted for varying the iffset to a length ranging from 5 mm to 50 mm.

6. The device for marking corresponding parallel offset profiles from the profiled edge of a component as claimed in claim 1, wherein the tip of the marker attached to the scriber (4) is made of high speed steel.