1. STATEMENT OF INVENTION
The present invention relates to an improved clamping device which can be used
to hold two or three work pieces providing eleven degrees of freedom along the
three radial vertical planes which maintains multiple angle relationship. These
work pieces can be easily aligned at any angle with precision. One of the three
vertical planes is detachable which provides even more freedom to easily mount
and remove the device and work pieces if necessary. A uniform hexagonal socket
is provided in the head of all the drive bolts which facilitates easv removal of
work pieces using an Allen key.
2. BACKGROUND OF INVENTION
A conventional clamp (or vice) is generally a mechanical device used to hold an
object in order to perform work on it. It includes two parallel jaws, one fixed and
the other movable attached to one end of a threaded shaft. The work piece is
clamped by turning the threaded shaft clockwise which moves the movable head
towards the fixed one. While the counter clockwise movement releases the work
piece. Such device provides the freedom to clamp the object along one direction.
Multi-dimensional relationship of the work pieces can also be maintained by the
use of multiple such clamps. Besides being time consuming, the set-up of such a
fixture is difficult to mount and also inconvenient to use. However, clamping of
work pieces in multiple dimensions with multi-angle relationship is essentially
required in welding, riveting and other joining processes especially for industries
like automobile, ship building, aerospace, etc.
Many patents have been known in achieving robust clamping devices and fixtures
in one / two dimension with fixed angle relationship. The invention of double-jaw
vice provides a greater degree of flexibility with increased stability and retention
of the work piece while being worked (US5149071, 1992). The first jaw member
comprises of two jaw elements: the lower v-shaped jaw element is fixed whereas
the upper one is slidable. The second jaw member is itself a slidable unit
comprising of similar jaw elements allowed to move towards one another. The
latter is used to either separately hold a work piece or assist the first jaw member
to hold a work piece firmly and with greater safety. Miter clamp as invented has
an angle element that helps to hold the work pieces with an obtuse angle
relationship (US5497981,1996). An adjustable bar clamp with movable jaw pads
have been invented for clamping the work pieces in a spreading fashion
(US0248074, 2005). These bar clamps have opposing jaw pads provided with
self-adjustable angle mechanism. The innovation of angle adjustable clamps helps
to hold work pieces at desired angle by adjusting the angle between the faces of
jaw members connected to plier-type handles (US5482263, 1996). Basically, this
locking plier type clamp comprises of two jaw members and a handle that helps in
the movement of these jaw members. The angle between these faces can be.
adjusted as desired. The conceptualization of variable angle flexible band
clamping corner is provided with flexible band clamps with contact pads that
forces the work pieces to hold them in desired locations (US7419148, 2008).
These pads provide contact extending beyond the ends of the work piece for

proper alignment between the work pieces. With the invention of the wire
stringing clamping device, it makes easier to retain wires at various angles by the
help of wire clamping structures (US8820715, 2014). An adjustable angle clamp
with opposing arm members are devised to provide clamping pressure at a joint
formed between the two opposing objects disposed between the jaws (US
7168693 Bl, 2007). An adjustable angle clamp was also developed that enables to
fix two butting panels at angles ranging from 0° to greater than 90° to one another
with the help of scissor hinge (US 8556244 B2, 2013). These hinges are used to
connect a pair of base plates comprising the clamping base at each end. Mostly,
the clamping fixtures invented till date provide us the flexibility to fix generally
two work pieces at multiple angular positions but in a single plane. Researchers
have also developed three dimensional angle clamp to hold work pieces along 3
orthogonal axes with a detachable Z-axis attachment (US 6860475 B2, 2005).
Quick acting buttons releases threaded shafts for quick removal of work pieces. A
swing away clamping arm is used in the Z-axis attachment which provides even
more space for the swift removal of the work pieces.
In contrast to the previous disclosures, the present invention provides a novel n-
dimensional clamping fixture provided with three arms to mount individual work
pieces along any three axes lying on three vertical planes meeting at a central pole
of the device with angular positions ranging from 0° to 360°. All the three arms
are detachable so that any of the combinations can easily be attached or detached
as per the necessity. Scale provided on the central circular hood and on the
detachable arced segment makes easy to measure the angles among the mounted
work pieces. The proposed n-dimensional portable clamping fixture will
drastically reduce the human labor, time and will increase the accuracy of work
and efficiency when used in operations of assembly especially for welding in
various industries like automobile, aerospace, manufacturing, etc.
3. OBJECTIVE OF INVENTION
This invention presents a robust n-dimensional clamping fixture that can hold
maximum of three work pieces and align them at any angles with precision. The
slider and the clamp units provided in the arms helps to provide eleven degrees of
freedom to each of the work pieces independently along three radial vertical
planes maintaining multi-angle relationship. The device and the work pieces can
be easily mounted or removed since the attachment of the base arm is detachable
and the arms can easily be set below one another. A uniform hexagonal socket is
provided in the head of all the drive bolts which facilitates easy removal of work
pieces using an Allen key. The ribs feature provided on the surface of the clamp
units as well as on the bottom plate of the threaded bolts eliminates the problem of
fixing work pieces of different shapes. And the mounting of clamps over the
sliders provide freedom to fix work pieces of different sizes too. The structure of
the clamping fixture gives enough space to perform welding operation from
multiple directions.

4. SUMMARY OF INVENTION
The n-dimensional clamping fixture, in accordance to our present invention,
consists of three arms positioned one above the other, a central hood with a blind
hole threaded internally at the center and an additional detachable arced segment
with a combination of linear and arced profile attached to the base arm. The three
arms have circular profiles at one of their extreme ends with the base arm having a
central threaded, vertical shaft. The circular plates of the top and the middle arms
are concentric with the threaded shaft of the base arm and the central tightening
hood goes over the stack of three arms one above the other to mate with the
vertical shaft.
Two sliders with T slots, mate with the T-shaped cross-sectional profile along the
linear portion of the top two arms. The top horizontal plate of these sliders is
equipped with a protruded ear having a combination of rectangular and
semicircular contours. The protruded ear lies longitudinally along the arm. Two
clamps are mounted over the protruded ears of the sliders. The base of the clamps
is equipped with two protruded ears to mate with the one at the sliders. The
clamps are fixed over the sliders with a nut-bolt assembly having no threads at the
mating of bolt and ears so as to provide turning motion to the clamps. The
protruded ears of the clamps are provided with multiple holes in concentric
circular patterns and two series of three linear holes in the mating protruded ear of
the slider. These clamps can be positioned at multiple inclinations (angles with
multiples of 05 degrees) about the slider using a dowel (cylindrical) pin to be
inserted through the coinciding required holes. A hex socket head type bolt is
provided at the top of the clamp to hold and position the workpiece. A ribbed
plate attachment at the tail end of the bolt and a ribbed pattern at the bottom plate
of the clamp are provided to facilitate a strong holding grip of the workpiece.
The base arm is provided with a flange structure and a vertical protruded ear at its
extreme end where the detachable segment is bolted. This segment is a
combination of linear and arced profiles with a rail provided over the arced
section. A slider-cum-clamp system is provided to traverse the arced profile along
the rail. The arced profile having T-shaped cross section is provided with an
angular scale marked on both sides of the rail. The slider-cum-clamp system is
equipped with a bolt at the lateral side of it that grips the clamp system over the
rail at the required angular position and thus maintains a variable angular
relationship with the top two arms. The other lateral side of the clamp system has
a C-clamp attached to it in order to hold the workpiece. Two vertical holes are
provided at the flange structure and another vertical hole is provided at the
protruded part of the circular plate of the base arm so as to facilitate the mounting
of the fixture on any workbench (if required). The base arm has an offset to one
side in order to accommodate and align the required end of the work piece with
the corresponding workpieces of the other two arms along the vertical central axis
of the hood.

BRIEF DESCRIPTION OF THE DRAWINGS
The following is a brief description of the preferred embodiments with reference
to the accompanying drawings.
In the accompanying drawings:
FIG. 1 is a perspective view of the n-dimensional clamping fixture of the present
invention
FIGT2-is a detailed exploded perspective view of the base arm for a better
understanding of the detachable segment.
FIG. 3 is a perspective view of the clamp system to be mounted over the
detachable arced segment.
FIG. 4 is a detailed exploded perspective view of the middle arm including the
slider and the clamp units to explain the connectivity and mechanisms.
FIG. 5 is a detailed perspective view of the top arm along with the slider and the
exploded view of the clamp unit.
FIG. 6 is a exploded perspective view of the three arms and the central hood,
shown from the bottom to reveal the interior part features and working of
the arms.
FIG. 7 is an isometric view of the fixture while holding two work pieces on a
common horizontal plane.
FIG. 8 is an isometric view of the fixture with two work pieces clamped to it at an
angle from a horizontal plane.
FIG. 9 is an isometric view of the clamping fixture holding three work pieces with
an orthogonal relationship.
FIG. 10 is a perspective view of the clamping fixture holding three work pieces in
a non-orthogonal orientation.

DETAILED DESCRIPTION OF THE INVENTION
With the help of the drawings and the detail description below, the features of the
present invention will be apparent and fully understandable.
Referring to FIG. 1 of the aforementioned drawings, the fixture 1 consists of four
major parts indicated at 2, 5, 10 and 15. The lower arm namely 2, has a detachable
arc segment 3 and a clamp unit 4 assembled with the arc. The middle arm 5 has a
slider unit 6 connected to it with a prismatic joint 7 that provides linear sliding
contact between the two. Part 8 is a clamp, cormected to slider 6 via a modified
revolute joint 9 equipped with a locking mechanism at multiple angle orientation.
The third and the topmost arm 10 have a linear sliding unit 11 with a similar
prismatic joint 12 as of 7 in arm 5. The clamp 13 has been attached to part 11
following a similar revolute joint 14 as of slider 6. The central tightening hood 15
placed over the concentric stack of three arms 2, 5 and 10 enables to tighten and
position the arms relative to each other.
FIG. 2 illustrates the base arm 2 which has a circular plate 16 at one of its extreme
end. The circular plate 16 is equipped with a threaded shaft 17 at its centralaxis.
The arm 2 has a linear path 18 with an offset 19 from the central axis of the shaft
17 to one of its lateral sides and again a linear path 20 parallel to path 18. The
offset 19 is provided so that a workpiece when attached to the base arm 2 aligns
itself corresponding to the workpieces of the middle arm 5 and top arm 10 in FIG.
1. The circular plate 16 has a horizontal protruded part with a hole 21 provided to
fix the fixture 1 on any work bench using a screw (if needed). The other extreme
end of the base arm 2 has a flange structure 22 with two vertical holes 23a and
23b to fix the fixture 1 on any work bench. The flange structure 22 is provided
with a vertical protruded ear 24 with a hole 25 at its center. The detachable arc
segment 3 mates with the vertical protruded ear 24 of the base arm 2 at a similar
slot 26 present at the extreme base end of the arc segment 3. A bolt 28 helps to
attach the arm 2 and arc segment 3 while inserting through holes 25 and 27
respectively in part 24 and 26 by tightening a nut 29. This allows an easy
disassembly of the arc segment 3 with the base arm 2. The attachment 3 has two
sections, first is the linear vertical section 30 and second is the arced section 31.
The linear section 30 is of rectangular cross-section with a rectangular cavity 32 at
the upper and inner portion and a slot 26 at the extreme lower end. The
rectangular cavity 32 on arc segment 3 and a rectangular cavity 33 on the base
arm 2 are provided to insert a wedge 34 so as to make a robust fixture.
FIG.3 depicts the details of the arced section 31 of the detachable segment 3 in
FIG. 1 with clamp system 4. The arched section 31 is having a T-shaped cross-
section 35 so as to provide structural rigidity and a guiding rail 36 for the clamp
system 4. A smooth transition 37 is provided at the junction of linear and arched
section 30 and 31 respectively which limits the movement of clamp system 4 over
the rail 36. The rail 36 along the arced section 31 is provided with scaling marks.
38 with least count of 1 degree over a range of 0 to 90 degrees. This facilitates to
ensure required orientation of any clamped workpiece on clamp system 4 along
the rail 36. The clamp system 4 is designed to slide along the rail 36 of the arced

section 31. The surface profile 45 of the clamp system 4 and the inner surface of a
wedge 46 have a similar profile complimentary to the profile of the arced section
31 so that a uniform sliding of the clamp system 4 can be achieved over the arced
section 31. Its position can be locked at any instance using a bolt 40 provided at
one side of the clamp system 4 passing through the hollow cylindrical block 39
having internal threads with its tail end attached with the wedge 46. The other
lateral part of the clamp system 4 is a C-shaped clamp equipped with a ribbed
plate 44, a blot 42 with a ribbed plate attachment 43 at its tail end passing through
a hollow cylindrical block 41 having internal threads to hold any work piece
between the ribbed plates 43 and 44. The angular scale marks 38 are provided on
both sides of the rail 36 so as to position the clamp system 4 along with any
clamped work piece precisely at any desired angular position ranging from 0° to
90°.
FIG. 4 shows the slider unit 6 and clamp system 8 sliding over the middle arm 5.
A circular plate 48 with a central hole 49 is provided at one of the extreme
longitudinal ends of the middle arm 5. The linear section of the middle arm 5 is of
T-shaped cross section 50 which mates with a complementary slot 51 provided in
the slider unit 6. This enables the slider 6 to slide along the length of the arm 5. A
supporting pad 61 is provided to place below the middle arm 5 so as to align the
arm 5 along a horizontal plane. This also strengthens the arm geometry and easy
alignment of arm 5 with 2 in FIG. 1. The slider 6 can also be positioned and fixed
on the arm 5 while tightening the bolts 52a and 52b along the lateral jaw 53 via a
protruded hollow cylindrical block 54a and 54b having internal threads. The top
plate 55 of the slider unit 6 has a vertical protruded ear 56 aligned along the
longitudinal axis of the middle arm 5. The shape of the protruded ear 56 is a
combination of rectangular and semicircular profiles, 57 and 58 respectively with
a hole 59 driven at the radial center of the semicircular contour 58. Two sets of
three collinear holes 60a and 60b of similar dimensions are provided in the
protruded ear 56 along the radial line of hole 59 in the longitudinal direction of
arm 5. The clamp unit 8 has a horizontal ribbed plate 62 with two vertical
protruded ears 63a and 63b in the downward direction along the longitudinal axis
of arm 5. These protruded ears 63a and 63b having central holes 64a and 64b
respectively mates with the corresponding hole 59 at ear 5 of the slider unit 5. A
threaded bolt 65 with a long shank length is inserted through the mating holes
64a, 59 and 64b and a hexagonal nut 66 tightens the bolt. This provides a turning
motion between slider 6 and clamp 8. On the lateral faces of the protruded ears
63a and 63b, a series of holes 67a and 67b respectively are provided, along the
three circular regions concentric about the holes 64a and 64b. A dowel pin 68 can
be inserted in any one of the holes of one of the two protruded ears 63a or 63b
from either directions, passing through any one of the ears among the set of
collinear holes 60a and 60b of protruded ear 56. This locks the revolute joint 9 of
the slider-clamp unit 6 at .given angular orientations. The series of holes 67a and
67b are provided in a fashion so that the clamp unit 8 can be set at any angles in
multiples of 5 about the revolute joint 8. The ear 63a facilitates an angle variation
of 0 to 360 degrees with a least count of 10 degrees and the ear 63b provides an

angle variation of 5 to 355 degrees with a least count of 10 degrees. The
horizontal ribbed plate 62 is equipped with a vertical C-shaped structure 69 that
acts as the arm of a clamp 8. The top end of the clamp arm 69 is a vertical hollow
cylindrical block 70 having internal threads. A bolt 71 passing through the
cylindrical block 70 having a ribbed plate 72 at its tail end helps to tighten the
workpiece (when attached) at its position against the ribbed plate 62.
FIG. 5 describes the attachment of slider unit 11 and clamp unit 13 assembled
over the top arm 10 to hold a work piece (as required). A circular plate 73 with a
central hole 74 and the cross-sectional profile 75 of arm 10 is similar to the
features 48, 49 and 50 respectively of the middle arm 5 in FIG. 4. The slider unit
11 mating with arm 10 is similar in structure to the slider unit 6 in FIG. 4. This
enables the slider 11 to slide along the top arm 10. Its position can be fixed in a
similar fashion as of slider 6 in arm 5 using features of bolts 77a and 77b, jaw 78
and protruded hollow cylindrical blocks 79a and 79b. A vertical protruded ear 81
on the top plate 80 of slider unit 11 is having a similar contour 82 and 83 as of
protruded ear 56 in FIG. 4. The rectangular contour 82 has a different height than
the rectangular profile 57 of protruded ear 56 (FIG. 4) so that the pivot point about
which the clamps 8 and 13 rotates remains at the same horizontal level. The
protruded ear 81 comprises of collinear holes 84, 85a and 85b of dimensions and
positions corresponding to similar holes 59, 60a and 60b respectively of ear 56 in
FIG. 4. The structural features, positioning and functioning of clamp unit 13 is
same as of clamp unit 8 of middle arm 5 in FIG. 4. The work piece can again be
attached in clamp unit 13 in a similar way as in clamp unit 8 of arm 5 (FIG. 4)
while tightening the bolt features 96 and 97 through cylindrical block 95 against
the ribbed plate 87. The hole features 92a and 92b, the two set of three collinear
holes 85a and 85b and the dowel pin 93 allows to orient the work piece at a
particular angular orientation. A supporting pad 86 is provided below the top arm
10 serves the same purpose as of pad 61 under the middle arm 5.
FIG. 6 illustrates the positioning and alignment of cylindrical central hood 15 and
arms 2, 5 and 10 along the axis of the shaft 17. The holes 49 and 74 in circular
plates 48 and 73 respectively of the middle and top arms 5 and 10 align and pass
through the central vertical shaft 17 of arm 2. The non-threaded portion of the
shaft 17 mating with holes 49 and 74 makes a revolute joint and the position of
the arms 5 and 10 can be fixed while tightening the central hood 15 threaded
internally 98 mating with the threaded end of shaft 17. At this position, the flange
99 provided in the central hood 15 makes a frictional contact with the circular
plate 73 of arm 10 and a similar frictional constraint is maintained between
circular plates 73, 48 and 16 respectively of arms 10, 5 and 2. The top of the
flange 99 has a horizontal hexagonal slot 100 to tighten and loosen the central
hood 15 easily using an Allen key. The upper circular surface of the flange 99 has
scaling marks of 0 to 360 degrees (not shown in FIG. 6) which helps to orient the
arms 2, 5 and 10 in any desired position.
FIG. 7 depicts the multi axis angle clamping fixture holding two work pieces 102
and 103 on the same horizontal plane at a particular angle that can be easily set
and verified through the measuring scale 101 marked over the central hood 15.

The angle between these workpieces can be easily varied as per the requirement
by loosening, realigning and tightening the central hood 15 using an Allen key
through hexagonal socket 100. The fixture presently fixes the two work pieces
102 and 103 about the radial vertical planes of their respective arms 5 and 10. The
workpieces 102 and 103 can also be set at any precise angular orientation along
the same radial vertical planes about the revoiute joint 9 and 14 of clamps 8 & 13
respectively. FIG. 8 shows this modified orientation of the work pieces 102 and
103 fixed about the clamps 8 and 13 of arms 5 and 10 respectively.
Referring to FIG. 9 and FIG. 10, the detachable arm 3 is assembled to the base
arm 2, the third work piece 104 being clamped by the clamp unit 4 are shown in
two different orientations with respect to the other two work pieces 102 and 103.
The clamping and releasing operation of the clamp units 4, 8 and 13 in
conjunction with the tightening and releasing of the central hood 15 helps to
provide multiple angle relationship between the work pieces 102, 103 and 104
along the three radial vertical planes of arms 2, 5 and 10. The work pieces 102,
103 and 104 mounted at an orthogonal relationship on the n-dimensional
clamping fixture 1 is shown in FIG. 9. FIG. 10 shows a random non-orthogonal
orientation of the work pieces 102, 103 and 104 positioned and clamped with the
fixture 1. With these arrangements, the complete unit of n-dimensional clamping
fixture 1 creates an open access working area for jobs involving three axis work
pieces especially in welding to achieve maximum efficiency. The slider unit 6
provides the work piece 102 a translational and rotational degree of freedom along
the length of the arm 5. The clamp unit 8 again provides a rotational degree of
freedom to the work piece 102 about an axis on the clamp 8 perpendicular to the
imaginary vertical plane along the length of the arm 5. The workpiece 102 can
also rotate about its longitudinal axis. This gives the workpiece 102 a total of four
degrees of freedom when clamped to the middle arm 5. Similarly, slider unit 11
and clamp unit 13 provides four degrees of freedom to the work piece 103
mounted over the arm 10. The clamp system 4 mounted over the detachable arced
segment 3 of base arm 2 allows the work piece 104 to translate and rotate about its
own axis. The sliding of the clamp system 4 over the guiding rail 36 of arced
segment 3 provides the work piece 102 an additional rotational degree of freedom
about an axis, having fulcrum at the center of the top surface 105 of the central
hood 15, perpendicular to the imaginary vertical plane along the length of the arm
2. This makes the n-dimensional clamping fixture 1 capable of providing eleven
degrees of freedom to the three work pieces 102, 103 and 104 along the three
vertical planes of the arms 2, 5 and 10..

CLAIMS
What I claim as my invention is:
1. A n-dimensional clamping fixture comprising:
three radial arms having a circular plate at the extreme end with a central hole
driven across the circular plates of the top and middle arms, a central vertical
threaded shaft provided at the circular plate of the base arm to connect and
stack the other two arms about the said central holes of the circular plates,the
top and the middle arms with linear paths and the base arm having a zig-zag
path in order to create an offset from the central axis of the said vertical shaft;
a central hood having threaded blind hole at the bottom which mates from the
top with the said vertical threaded shaft of the base arm to tighten and govern
the position of the top and middle arms and this allows to maintain a multiple
angle relationship between the said three arms;
a detachable segment having a combination of linear and arced profile bolted
to the base arm at one of the extreme end, a flange structure with a slot to
mate with the base arm, a stiffener mechanically constrained to a rectangular
slot in the linear section and a rail provided in the arced section;
Two slider and two clamp units mounted on the linear path of the top and
middle arms and a clamp system mounted over the arced section of the
detachable segment which slides over the said guiding rail.
2. A n-dimensional clamping fixture according to claim 1, wherein said base arm
has a circular plate provided at one of its extreme end with a central vertical
shaft having threads at its upper section, a linear path with an offset from the
axis of the said vertical shaft to one of its lateral sides and again a forward
linear path and a flange shaped structure with a vertical protruded ear having
two holes each is provided at the other extreme end of the said base arm; the
two holes provided at the said flange structure can be used to fix the said
clamping fixture to a work desk by screws or threaded fasteners.
3. The detachable segment according to claim 1, wherein:
the said detachable segment is a combination of linear and arced profile joined
end to end, the said arced section is extended more than a quarter of a circle
and a rail provided on the outer surface of the said arced section;
a slot with a hole is provided at the extreme end of the said linear section
similar in shape to the said vertical protruded ear and holes of the said base
arm so that the said detachable segment mates with the said base arm through
a nut bolt assembly;

a stiffener having a T-shaped cross-section is placed between the slots
provided in the linear path near to the said flange structure of the said base
arm and the other in the linear section of the said detachable segment
maintaining a mechanical constraint while attaching the said detachable
segment to the base arm through the said nut bolt assembly.
4. The radial top and middle arms according to claim 1, wherein said arms have a
linear path with a T-shaped cross-section and a circular plate with a central
hole at its extreme end which passes through the said vertical shaft of the said
base arm.
5. The central hood according to claim 1, wherein:
The said central hood is in the shape of a cylinder equipped with a circular
flange at its bottom end, a central blind hole having internal threads at the said
bottom end mating and making a screw pair with the said vertical shaft of the
base arm to constrain the position of the said three radial arms;
a horizontal hexagonal slot is provided at the top of the said circular flange to
tighten and release the said central hood using an Allen key and angular
scaling marks are provided on the top surface of the said circular flange which
helps to orient the said three radial arms at any desired angle.
6. The two slider units according to claim 1, wherein:
a slot similar in shape to the T-shaped cross section of the said top and middle
arms is provided to mount the said sliders on the said arms, two internally
threaded holes are provided on one of the lateral sides of the said slots through
which two bolts are tightened to grip and fix the position of the said slider
units on the said arms and a vertical protruded ear parallel to the length of the
respective said arms are provided on the top surface of the said sliders;
the said vertical protruded ear is a combination of rectangular and semicircular
plates with a hole at the radial center of the said semicircular contour and three
collinear holes at each side of the said central hole with their centers aligning
diametrically.
7. The two clamps units according to claim 1, wherein:
The said clamps are equipped with a horizontal ribbed plate in a C-shaped
clamp structure, a vertical cylindrical block with an internal threaded vertical
hole through which a bolt with a ribbed plate attached to its tail is fed to clamp
and release a workpiece against the said horizontal ribbed plate and two
vertical protruded ear below the said horizontal ribbed plate placed parallel to
the length of the respective said arms;

the said two protruded ears are a combination of rectangular and semicircular
plates with two concentric holes at the radial center of the said semicircular
contours mounted over the said slider unit while mating with the said
protruded ear of the said slider unit to make a turning joint with the help of a
nut bolt assembly.
8. The two protruded ears according to claim 7, wherein two patterns of hole
series along the three circular regions concentric about the said central hole of
the said protruded ears are provided with a phase difference of 5 degrees
among the said protruded ears which allows the said clamp unit to be set at
any angles in multiples of 5 about the said turning joint by inserting a dowel
pin one at a time in any of the holes of either of the two said hole patterns
from either side of the two said protruded ears passing through one of the said
three collinear holes provided in the said mating protruded ear of the said
slider unit.
9. The clamp system according to claim 1, wherein:
a primary C-shaped structure envelops the said detachable arced segment at
one side of the said rail and an internally threaded cylindrical protruded
section provided at one of the corners of the said C-shaped structure through
which a bolt with an arced wedge at its tail end is operated to mate at the
union of the said rail and arced section so as to fix the position of the said
clamp system over the said rails;
a secondary C-shaped clamp structure is attached to one end of the said
primary C-shaped structure at the opposite side of the said rail over the said
arced segment to hold the work piece between a stationary ribbed plate and a
moving ribbed plate along with a driving bolt placed facing each other at the
opposite ends of the said secondary C-shaped structure;
10. The n-dimensional clamping fixture according to claim 1, wherein three
workpieces are clamped in the said three clamp units of the said three radial
arms maintaining a multi-angle relationship.