Mounting system

A mounting system comprising:

• a support member having:
• (a) a groove extending along the length of said support member in a first surface extending along a first leg of said support member and having a pair of opposed contact surfaces forming an acute angle transverse to the length of said support member, and
• (b) a second surface extending along a second leg of said support member parallel to said first leg;
• and a clamping unit releasably mounted on said support member for adjustable positioning of said clamping unit at a selected location along the length of said support member and having:
• (a) a clamping piece having a protrusion at a first end of said clamping piece fitted within said groove in said support member and bearing against said opposed contact surfaces of said groove, and
• (b) locking means at a second end of said clamping piece engaging said second surface of said support member for applying a force to said second leg of said support member at an angle of less than ninety degrees to said second leg to draw said protrusion into intimate contact with said opposed contact surfaces of said groove in said support member.

A mounting system comprising:

• a support member;
• and a clamping unit releasably mounted on said support member for adjustable positioning of said clamping unit at a selected location along the length of said support member and having:
• (a) a clamping piece having a first end bearing against a first surface of said support member, and
• (b) a locking member at a second end of said clamping piece separate from said clamping piece and engaging said clamping piece and a second surface of said support member opposite from said first surface of said support member for drawing said protrusion into intimate contact with said opposed contact surfaces of said groove in said support member;
• one of said first surface of said support member and said first end of said clamping piece having a groove having a pair of opposed contact surfaces forming an acute angle transverse to the length of said support member and the other having a protrusion fitted within said groove and bearing against said opposed contact surfaces of said groove.

A mounting system comprising:

• a support member having:
• (a) a groove extending along the length of said support member in a first surface extending along a first leg of said support member and having a pair of opposed contact surfaces forming an acute angle transverse to the length of said support member, and
• (b) a second surface extending along a second leg of said support member parallel to said first leg;
• and a clamping unit releasably mounted on said support member for adjustable positioning of said clamping unit at a selected location along the length of said support member and having:
• (a) a clamping piece having:
• (i) a protrusion at a first end of said clamping piece fitted within said groove in said support member and bearing against said opposed contact surfaces of said groove, and
• (ii) a threaded bore extending through said clamping piece at a second end of said clamping piece, and
• (b) a threaded knob extending through said threaded bore and having a point end bearing against said second surface of said support member for drawing said protrusion into intimate contact with said contact surfaces of said groove in said support member.

A mounting system comprising:

• a support member having:
• (a) a first groove extending along the length of said support member in a first surface extending along a first leg of said support member and having a pair of opposed contact surfaces forming an acute angle transverse to the length of said support member,
• (b) a second groove identical to said first groove extending along the length of said support member in a second surface extending along a second leg of said support member parallel to said first leg,
• (c) third and fourth grooves extending along the length of said support member in third and fourth surfaces, respectively, extending along third and fourth legs, respectively, of said support member and disposed relative to each other identical to the relative dispositions of said first and said second grooves;
• and a clamping unit releasably mounted on said support member for adjustable positioning of said clamping unit at a selected location along the length of said support member and having:
• (a) a clamping piece having a protrusion at a first end of said clamping piece fitted within one of said grooves in said support member and bearing against said opposed contact surfaces of said one groove within which said protrusion is fitted, and
• (b) locking means at a second end of said clamping piece engaging a surface of said support member opposite from said one groove within which said protrusion is fitted for drawing said protrusion into intimate contact with said opposed contact surfaces of said one groove in which said protrusion is fitted,
• whereby said protrusion on said clamping piece can fit within any of said grooves and said locking means can extend into any of said grooves opposite from said groove within which said protrusion is fitted.