Bookshelf with adjustable locking bookends

A bookshelf with at least one adjustable bookend mounted thereon comprising:

• a shelf formed of first and second shelf members spaced apart to form an open guideway therebetween;
• the guideway extending through the shelf and longitudinally along the shelf;
• channel means, mounted on the shelf and having a longitudinally extending opening communicating with the guideway in the shelf, for forming a longitudinal slot along the shelf, the channel means comprising:
• upper and lower channel members, the upper and lower channel members being joined together and joined to each of the first and second shelf members;
• and
• the longitudinal slot formed in the upper channel member, the upper channel member including at least one downwardly extending leg adjacent to the slot, a plurality of spaced, open-ended apertures co-linearly formed in the downwardly extending leg;
• a book support member;
• a base attached to the book support member;
• lock means, mounted in the base and having a lock bar accessible at a first end for manual movement through the base, for releasably locking the base and the attached book support member in a selectively adjustable position along the length of the shelf;
• a second end of the lock bar extending through the base and the guideway into the longitudinally extending opening in the channel means;
• a cross bar mounted on the second end of the lock bar and releasably engageable with one of the apertures in the upper channel member to lock the book support member and the base in a selective position along the shelf;
• and
• biasing means, acting on the lock bar, for normally biasing the lock bar and the attached cross bar to a first position in which the cross bar engages one of the apertures in the upper channel member.

A shelf comprising;

• first and second shelf members spaced apart to form an open guideway therebetween, the guideway extending through the shelf and longitudinally along the first and second shelf members;
• channel means, mounted on the first and second shelf members and having a longitudinally extending opening communicating with the guideway for forming a longitudinal slot along the first and second shelf members, the channel means comprising;
• upper and lower channel members, the upper and lower channel members being joined to each of the first and second shelf members;
• and
• the longitudinal slot formed in the upper channel member, the upper channel member including at least one downwardly extending leg adjacent to the slot, a plurality of spaced, open-ended apertures co-linearly formed in the downwardly extending leg;
• article support means, slidably moveable along the shelf, for supporting an article on the shelf;
• lock means, mounted in the article support means and having a lock bar accessible at a first end for manual movement through the article support means, for releasably locking the article support means in a selectively adjustable position along the length of the first and second shelf members;
• a second end of the lock bar extending through the article support means and the guideway into the channel means;
• a cross bar mounted on the second end of the lock bar and releasably engageable with one of the apertures in the upper channel member to lock the article support means in a selective position along the first and second shelf members;
• and
• biasing means, acting on the lock bar, for normally biasing the lock bar and the attached cross bar to a first position in which the cross bar engages one of the apertures in the upper channel member.