FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10 and rule 13]
“COMPOUND ANGLE WORK PIECE HOLDING DEVICE”
NAME AND ADDRESS OF THE APPLICANT: TATA MOTORS LIMITED, an Indian company having its registered office at Bombay house, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA.
Nationality: Indian
The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
The present disclosure relates to a vice for holding a compound angled workpiece. More particularly, the disclosure relates to a machine vice for clamping a workpiece having compound angle up to 10 degrees horizontally and 4 degrees vertically.
BACKGROUND OF THE DISCLOSURE
Vices used for machine tools are manufactured by many machine tool manufacturers. These vices are used in drilling machine, grinding machines, milling machines and such similar apparatus, and some of the vices are provided with titling mechanisms so that they can be positioned at an angle with respect to the bed or table of the machine. In addition, the parts of the vice and associated equipment are to be cleaned and maintained free from chips of the metal. In ordinary machine it is difficult to clean the worktable.
UK patent application GB2475916 discloses construction of a vice. The vice disclosed in this invention is a metal vice which facilitates for holding irregular or angular shaped objects. The vice disclosed can accommodate irregular or angular shaped workpiece by means of allowing an advancing jaw to swivel left or right on a vertical round axis. The advancing jaw includes a vertical hole bored at the middle with cylindrical member passing through the hole and welded to movable jaw to allow the jaw to move clockwise or anti-clockwise. The vertical axis is situated right through the centre of the advancing jaw. The base of the axis is attached to a solid square block, which is situated, next to the vice handle.
Also, US 109868 disclose a vice which provides removable gripping-members on the jaws and a work-rest between the jaws adjustable horizontally and vertically with respect to the jaws and with one or both jaws pivoted on a vertical pivot. The jaws are formed in such a manner that it receives removable members. A work-rest is removably attached to screwed bars adjustably fixed by wing nuts on slotted rods attached to the vice-jaws by lugs. The rods slide through the jaws on the fixed jaws as the movable jaw is operated. The jaw is pivoted on a pin screwed into a boss or projection on the eliding part and the jaw is held on its pivot by a pin engaging a groove in the pin.

The above mentioned prior art discloses a vice which requires additional components and tilting mechanisms for adjusting the vice with respect to workpiece. Also, more components required to clamp the workpiece at the desired position. Hence, there exist needs to develop a vice with less number of components, easy to manufacture and easy to clean.
STATEMENT OF THE DISCLOSURE
Accordingly, the disclosure provides a compound angle vice comprising, a base block provided with a fixed jaw at one end and a back support plate on the other end; a guide mounted on the base block in between the fixed jaw and the back support plate; a slide member slidably mounted on the guide, wherein said slide member is provided with a groove on its upper surface; an opposing movable jaw mounted on the slide member using a spigot; wherein said spigot is mounted inside the groove of the slide member to facilitate horizontal angular movement to the movable jaw; and a lead screw engaging with movable jaw through openings provided in the sliding member and the back support plate to move the movable jaw. and it also provides a method of assembling a vice is disclosed as another aspect of the present disclosure. The method comprises acts of mounting a guide on a base block of vice; wherein said guide mounted in between a fixed jaw and a back support plate; mounting a sliding member on the guide; mounting an opposing movable jaw on sliding member using a spigot provided on bottomface of the movable jaw; wherein said spigot is mounted inside the groove provided in the sliding member facilitating horizontal angular movement to the movable jaw; and engaging a lead screw to the movable jaw through opening provided on sliding member and back support plate for providing motion to the movable jaw.
SUMMARY OF THE DISCLOSURE
The shortcomings of the prior art are overcome and additional advantages are provided through the provision of innovated vice as claimed in disclosure.
Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.

The disclosure provides a compound angle vice comprising, a base block provided with a fixed jaw at one end and a back support plate on the other end; a guide mounted on the base block in between the fixed jaw and the back support plate; a slide member slidably mounted on the guide, wherein said slide member is provided with a groove on its upper surface; an opposing movable jaw mounted on the slide member using a spigot; wherein said spigot is mounted inside the groove of the slide member to facilitate horizontal angular movement to the movable jaw; and a lead screw engaging with movable jaw through openings provided in the sliding member and the back support plate to move the movable jaw.
In one embodiment of the present disclosure a plurality of projections are provided on the base block to mount the guide.
In one embodiment of the present disclosure a flat plate is mounted on front face of the fixed jaw for supporting a compound angled workpiece.
In one embodiment of the present disclosure the adjustable movable jaw is removably mounted on a sliding member.
In one embodiment of the present disclosure the adjustable jaw plate is connected to the movable jaw using plurality of dwell pins.
In one embodiment of the present disclosure the adjustable movable jaw is connected to an adjustable jaw plate on its front face.
Another embodiment of the present disclosure is that the adjustable jaw plate is assembled with the movable jaw to facilitate vertical angular movement with respect to the movable jaw.
In one embodiment of the present disclosure the guide mounted on the base block is a dovetail guide.
In one embodiment of the present disclosure the movable jaw comprises a concave surface in its front face for accommodating convex portion of the adjustable jaw plate.

In one embodiment of the present disclosure the lead screw is provided with a spherical end that fits with a spherical groove provide in rare face of the adjustable movable jaw.
In one embodiment of the present disclosure the lead screw (07) is held inside the opening provided in the sliding member (5) using a locking cap (10).
In one embodiment of the present disclosure, a method of assembling a compound angle vice is disclosed. The method comprises acts of, mounting a guide on a base block of vice; wherein said guide mounted in between a fixed jaw and a back support plate; mounting a sliding member on the guide; mounting an opposing movable jaw on sliding member using a spigot provided on bottomface of the movable jaw; wherein said spigot is mounted inside the groove provided in the sliding member facilitating horizontal angular movement to the movable jaw; and engaging a lead screw to the movable jaw through opening provided on sliding member and back support plate for providing motion to the movable jaw.
Another embodiment of the present disclosure provides a method of operating a vice is disclosed as another aspect of the present disclosure. The method comprises acts of rotating a lead screw to move a movable jaw, wherein said rotation provided to lead screw engages the movable jaw which is mounted on a sliding member using a spigot to a workpiece surface and said movable jaw aligns horizontally and vertically to confine the shape of the workpiece.
The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The novel features and characteristic of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction

with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:
FIGS. 1 illustrates schematic representation of the vice viewed isometrically according to the disclosure.
FIG. 2 illustrates schematic representation of top view of the vice according to the disclosure.
FIG. 3 illustrates schematic representation of top view of the vice showing vertical movement of the adjustable jaw plate according to the disclosure.
FIG. 4 illustrates schematic representation of top view of the vice showing horizontal movement of the movable jaw according to the disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAIL DESCRIPTION
The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which form the subject of the claims of the disclosure. It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristic of the disclosure, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however,

that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure.
It is to be noted at this point that all of the above described components, whether alone or in any combination, are claimed as being essential to the disclosure, in particular the details depicted in the drawings and reference numerals in the drawings are as given below.

Referral Numerals Description
1 Body of Vice
2 Moveable jaw
3 Dovetail Plate
4 Fix Jaw Plate
5 Sliding Plate
6 Moveable jaw Plate
7 Lead Screw
8 Locking plate of Lead Screw
9 Locking plate of Moveable jaw
10 Locking cap
11 Spigot
12 Handle
13 Dowel pins
14 Concave & Convex surface
15 Sphere (ball)
The present disclosure relates to a vice (1) for holding a compound angled workpiece. More particularly, the disclosure relates to a machine vice (1) for clamping a workpiece having compound angle up to 10 degrees horizontally and up to 4 degrees vertically.

The present disclosure provides a vice (1) with less number of components, easy to manufacture and easy to clean. Over and above the adjustable jaw plate (6) provided to the movable jaw (2) of the vice (1) accommodates work piece having irregular shape for example a trapezoidal workpiece or work piece with nonparallel surfaces.
a machine tool vice (1) disclosed in the present disclosure can be easily disassembled. Hence, it is easy to remove the chips formed on the work table.
According to the present disclosure the machine tool vice (1) comprises a moveable jaw (2) along with a fixed jaw (4) and a sliding plate (5) integrated to it. The moveable jaw (2) is a rectangular one. And said moveable jaw (2) is provided with counter sunk holes to receive screws to fasten the moveable jaw (2) to machine. AFix jaw plate (4) is mounted to the front face of the vice body (1). Thus the fixed jaw (4) forms a support to hold the workpiece on one side. The sliding plate (5) which is an integrated part of the moveable jaw (2) provides an opening on its body such that a lead screw (7) passes through the opening provided. Further the moveable jaw (2) is provided with a pair of projections on its upper surface such that a dovetail guide (3) is mounted on these projections. Further these dovetail guide (3) provides a sliding surface on its top face. The dovetail guide (3) can be easily removed for cleaning and maintaining the work table.
Also the present disclosure discloses a sliding member (5) which is slidably mounted on the dovetail guide. The sliding member (5) is provided with a cylindrical groove on its top surface.
The present disclosure discloses a movable jaw (2) which is provided with a spigot (11) in its bottomface is mounted up on the sliding member (5) with assembling the spigot (11) inside the cylindrical groove provided on the sliding member (5). The movable jaw (2) with the spigot (11) assembled with sliding member (5) provides horizontal angular movement to the movable jaw (2). The spigot (11) inside the cylindrical groove rotates within the groove providing angular movement to the movable jaw (2). Thus the movable jaw (2) tilts with respect to the workpiece surface and holds the workpiece firmly by keeping it pressed against the fixed jaw (4).

Further an lead screw (7) is connected to back face of the sliding plate (5) through a pair of dwell pins (13) and locking plate (8). The movable jaw (2) is provided with a concave surface on its front face such that it can accommodate the convex surface of the adjustable jaw plate (6). The movable jaw (2) and the adjustable jaw plate (6) are connected with a suitable means and a space is provided between them such that the adjustable jaw plate (6) is free to move along the vertical axis with out interruption of the movable jaw (2). Thus the movable jaw (2) along with the adjustable jaw plate (6) provides vertical angular movement to align the movable jaw (2) with the workpiece surface.
The present disclosure also provides a lead screw (7) for providing motion to the movable jaw (2). One end of the lead screw (6) is provided with a spherical end such that it matches with spherical groove (15) provided on the rare surface of the movable jaw (2). The other end of the lead screw (7) is provided with a handle (12) to rotate the lead screw (7) to move it forward or backward.
Figs. 1-2 illustrate the vice (1). The vice (1) according to disclosure discloses an adjustable vice (1) which is capable of accommodating non-parallel surfaced workpiece. Said vice (1) is made up of a Moveable jaw (2) which is a Moveable jaw plate (6) and a sliding plate (5). Also, the Moveable jaw (2) is provided with plurality of projections such that a dovetail guide (3) can be mounted on these projections. The dovetail guide (3) mounted on the projections provides a sliding surface. A sliding member (5) is mounted on said dovetail guide (3) such that the sliding member (5) slides on the dovetail guide. And further the sliding member (5) is provided with a cylindrical hole on its top surface. A movable jaw (2) is mounted on the sliding member (5) and is assembled with the sliding member (5) using a spigot (11). The spigot (11) provided on the movable jaw (2) is mounted inside the cylinder hole provided on the sliding member (5).
The fixed jaw (4) formed on the vice body supports the workpiece on one side. The fixed jaw (4) is provided with a flat plate on its front face such that flat plate contacts the workpiece surface. The other side of the workpiece is clamped using the movable jaw (2). The movable jaw (2) is provided with concave surface on its front face so that it can accommodate an adjustable jaw plate (6). The adjustable jaw plate (6) is flat on its front face and convex shaped on its rear surface so that it matches with the concave

surface of the movable jaw (2). The convex surface of the adjustable jaw plate (6) is attached to the concave surface of the movable jaw such that the adjustable jaw plate is free to move with respect to the movable jaw (2) using a pair of dwell pins and locking plate (8). The flat face of the adjustable jaw plate (6) contacts the workpiece surface and clamps the workpiece in between the adjustable jaw plate (6) and the fixed jaw (4).
A lead screw (7) is provided for facilitating movement to the movable jaw (2). One end of the lead screw (7) is spherical so that it matches with a groove (15) provided on the rear surface of the movable jaw (2). The other end of the lead screw (7) is connected to a handle (12). Rotating the handle (12) in clockwise and anticlockwise direction respectively provides forward and backward motion to the movable jaw (2). Thus the workpiece is held between the fixed and movable jaw (2).
Fig. 3 illustrates the vice (1) provided with the vertical adjustment of the adjustable jaw plate (6). The adjustable jaw plate (6) is a plate with a flat surface in its front face and is provided with convex rear surface such that the convex surface (14) matches with the concave surface provided in the movable jaw (2). The convex surface of the adjustable jaw plate (6) is attached to the concave surface of the movable jaw such that the adjustable jaw plate is free to move with respect to the movable jaw (2) using a pair of dwell pins and locking plate (9). The adjustable jaw plate (6) is pressed against the workpiece surface such that the workpiece is clamped in between the fixed and the movable jaw (2). Thus the adjustable jaw along the movable jaw (2) provides the vertical movement to the movable jaw (2) which thereby accommodating any vertical angled workpiece for machining.
Fig. 4 illustrates the vice (1) provided with the horizontal adjustment. The movable jaw (2) is provided with a spigot (11) on its bottom face. The spigot (11) provided is mounted inside a cylindrical hole provided in the sliding member (5). The spigot (11) is free to rotate inside the cylindrical hole thus the spigot (11) with the movable jaw (2) moves horizontally. Thus the movable jaw (2) aligns with the workpiece surface horizontally.

Equivalents
With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a

construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

We claim:
1.A compound angle vice (1) comprising:
a moveable jaw (2) provided with a moveable jaw plate (6) at one end and a sliding plate (5) on the other end;
a guide (3) mounted on the vice body (1) in between the fixed jaw (4) and the sliding plate (5);
a slide member (5) slidably mounted on the guide, wherein said slide member (5) is provided with a groove on its upper surface;
an opposing movable jaw (2) is mounted on the slide member (5) using a spigot (11); wherein said spigot (11) is mounted inside the hole of the slide member (5) to facilitate horizontal angular movement to the movable jaw (2); and
a lead screw (7) engaging with movable jaw (2) through openings provided in the sliding member (5) and the sliding plate (5) to move the movable jaw (2).
2. The vice (1) as claimed in claim 1, wherein a plurality of projections are provided on the movable jaw (2) to mount the guide.
3. The vice (1) as claimed in claim 1, wherein a movable jaw plate (6) is mounted on front face of the fixed jaw (4) for supporting a compound angled workpiece.
4. The vice (1) as claimed in claim 1, wherein the movable jaw (2) is connected to an adjustable jaw plate (6) on its front face using plurality of dwell pins and a locking plate (9).
5. The vice (1) as claimed in claim 1, wherein the guide (3) mounted on the base of vice body (1) is a dovetail guide.
6. The vice (1) as claimed in claim 1, wherein the movable jaw (2) comprises a concave surface in its front face for accommodating convex portion of the adjustable jaw plate (6).
7. The vice (1) as claimed in claim 1, wherein the lead screw (7) is provided with a spherical end that fits with a spherical groove provide in rare face of the movable jaw (2).

8. The vice (1) as claimed in claim 1, wherein the lead screw (7) is held inside the opening provided in the sliding member (5) using a locking cap (10).
9. A method of assembling a compound angle vice (1), said method comprises acts of:
mounting a guide (3) on a of vice (1); wherein said guide (3) mounted in between a fixed jaw (3) and a sliding plate (5);
Mounting a sliding member (5) on the guide;
mounting an opposing movable jaw (2) on sliding member (5) using a spigot (11) provided on bottom face of the movable jaw (2); wherein said spigot (11) is mounted inside the hole provided in the sliding member (5) facilitating horizontal angular movement to the movable jaw (2); and
engaging a lead screw (7) to the movable jaw (4) through opening provided on sliding member (5) for providing motion to the movable jaw (2).
10. A compound angle vice (1) and a method of assembling are substantially as herein
above described and as illustrated in accompanying drawings.