referring now to fig1 - 5 , a preferred embodiment of the table top in accordance with the present invention is generally designated at reference numeral 10 . table top 10 comprises a frame 12 to which base 14 of the table is attached . a cavity 16 is defined by the base of the table and the sides of frame 12 . an underlay 18 may be placed on top of base 14 and may be covered by transparent cover 20 . table top 10 , as depicted in fig1 and 2 , is formed as a square , having frame 12 comprising four sides of equal lengths . however , the table top of the present invention may be made in any configuration , as long as the frame is capable of supporting a wall , a top ledge and a bottom ledge , as described more fully below . moreover , table top 10 depicted in fig1 and 2 has a relatively thin frame which makes up a very small percentage of the table top surface . the frame , however , can be made as thin or as wide as the user desires . frame 12 comprises wall 22 , top ledge 24 and bottom ledge 26 . wall 22 comprises two parallel sides , an inner side 28 and an outer side 30 , and two opposed surfaces , top surface 32 and bottom surface 34 . top ledge 24 and bottom ledge 26 are secured to inner surface 28 by any suitable means ; the preferred method , however , is by an adhesive , such as glue . as is conventional in the art of table manufacture , top ledge 24 is permanently secured to wall 22 of frame 12 so that the exposed surface 36 of top ledge 24 and top surface 32 of wall 22 form a smooth , continuous and planar surface . similarly , bottom ledge 26 is permanently secured to wall 22 so that undersurface 40 is coplanar with bottom surface 34 of wall 22 . preferably , as best seen in fig3 - 5 , top surface 32 and outer side 30 of wall 22 form a beveled edge 38 . beveled edge 38 creates an aesthetically more pleasing appearance for table top 10 ; in addition , by eliminating the usual sharp edges of a table top , the use of beveled edges minimizes the risk that the user or passerby will inadvertently injure himself . base 14 of table top 12 is placed between top ledge 24 and bottom ledge 26 and secured to inner surface 28 of wall 22 by an adhesive , preferably glue , as is standard practice in manufacturing tables . preferably , wall 22 is made of formica ; alternatively , the wall may be made of oak , corian or some other type of wood which would be more expensive to use but which would render an elegant , sophisticated appearance . top and bottom ledges 24 and 26 respectively could be made of wood , which can be painted or otherwise treated in order to match the appearance of wall 22 , so that entire frame 12 , or at least the portions exposed to view , have a uniform appearance . however , as described above , the appearance and design of frame 12 can be custom - made according to very specific instructions and details provided by the user . top ledge 24 and base 14 of table top 10 meet to form a cavity 16 , the depth of which depends on the height of top ledge 24 and , accordingly , the height of wall 22 to which top ledge 24 is secured . thus , cavity 16 may be made deeper or more shallow simply by increasing or decreasing the height of top ledge 24 and the height of wall 22 . underlay 18 is planar and is formed of a size and configuration to fit into cavity 16 and on top of base 14 . underlay 18 is preferably made of wood particle board or other material that provides a rigid and sturdy support but is relatively inexpensive . the use of underlay 18 is conventional in the art of table manufacture ; however , table top 10 could also be manufactured in accordance with the present invention without underlay 18 . cover 20 is also planar , and is similarly formed of a size and configuration to fit into cavity 16 and on top of underlay 18 . the preferred material for cover 20 is glass ; however , any other clear , transparent material , such as clear plastic , would also be suitable . cover 20 comprises an exposed upper surface 41 with upper edges 42 which may be beveled , as best seen in fig5 . beveled edges 42 facilitate locating and placing cover 20 in frame 12 and extricating cover 20 from frame 12 because they allow the cover to more easily slide into place . however , upper edges 42 may also comprise right angles . the embodiments depicted in fig1 - 5 represent one embodiment of table top 10 of the present invention . in this embodiment , a paper - thin insert ( not depicted in the figures ) is placed between the underlay and the glass cover . this insert may be provided with an upper surface which displays a singular print advertisement , a series of print advertisements , a menu , or other commercial information that is capable of being printed or reproduced on a piece of paper , a sheet - like piece of cardboard or the like . the insert is also formed of a size and configuration to fit into the cavity 16 , on top of underlay 18 and beneath cover 20 . in this way , the insert can be viewed through transparent cover 20 by an individual sitting at the table . transparent cover 20 also securely holds the insert in place and protects the insert from being soiled , torn or otherwise destroyed . in the above described embodiment of table top 10 , the features described above have the following preferred heights : wall 22 has a height of 1¾ ″, top ledge 24 and bottom ledge 26 are both ½ ″ high ; and base 14 is ¾ ″ high . both underlay 18 and transparent cover 20 have preferred heights of ¼ ″. these dimensions only apply to the preferred embodiment described above . the dimensions may be altered to suit the user &# 39 ; s taste . it is apparent to those skilled in the art that modifications may be made without departing from the spirit and scope of the invention as described above . accordingly , the invention is not meant to be limited by recitation of specific dimensions . in one preferred embodiment , apertures are disposed at the center of cover 10 , underlay 18 and base 14 . the location and dimensions of these apertures are identical so that when base 14 , underlay 18 and cover 20 are properly positioned , the apertures formed in each element directly line up with each other . as a result , the apertures form a bore 44 that extends from cover 20 and terminates at base 14 , as best seen in fig1 and 2 . bore 44 is dimensioned to receive a bolt ( not shown ). when positioned in place in bore 44 , the head of the bolt protrudes from the top of cover 20 and the opposite end of the bolt emerges from beneath base 14 . the head of the bolt may serve as a base to which a napkin holder , advertisement holder and the like may be attached . the bolt is secured into place by means of a nut fastened onto the opposite end of the bolt that is exposed to view under base 14 . this feature allows the table top user to easily reach underneath the table to unscrew the nut , and then disengage the bolt from bore 44 . the user can then place his index finger or thumb in the aperture formed in the cover , thereby allowing the user to more easily lift cover 20 from frame 12 and out of cavity 16 . the insert can them be removed and replaced with a new insert . once a new insert is placed in cavity 16 and on top of underlay 18 , the user may reposition cover 20 on top of the insert , once again placing the thumb or index finger in the aperture in cover 20 to assist in locating cover 20 into its proper place . finally , the bolt is positioned in bore 44 and secured in place by fastening the nut on the bolt . other embodiments of the disclosed invention include “ mediumtech ” and “ high - tech ” versions of table top 10 . to manufacture the medium - and high - tech versions , the height of top ledge 24 , and accordingly the height of wall 22 to which it is attached , is typically increased in order to create a deeper cavity . both the “ medium - tech ” and “ high - tech ” embodiments of the table top will be customized with respect to the electrical wiring , in order to accommodate the particular limitations , needs and objectives of the user . in the “ medium - tech ” version of the table top , the heights of top ledge 24 and wall 22 of the frame are adjusted to create a cavity 16 that is preferably approximately 1 inch deep . a light source , preferably a series of small light bulbs such as white translucent bulbs , are disposed in underlay 18 . the intensities of these light bulbs may be adjusted by means of a dimmer switch located underneath base 14 of the table or on a table leg . alternatively , the light source could also be controlled by means of a centrally - located , master dimmer switch . the deeper cavity is needed in order to accommodate the dimensions of the light bulbs and to diffuse the light they emit . an insert containing advertising , a menu or other commercial information is placed on top of underlay 18 . this insert is made of clear plastic or some other material which is translucent but which will not be destroyed or otherwise affected by the heat emitted by the light bulbs . finally , cover 20 is placed in cavity 16 and on top of the insert . in this way , the lights will shine through the transparent insert and cover 20 , thereby illuminating the information contained on the insert . finally , the high - tech embodiment of the table typically requires increasing the heights of top ledge 24 and wall 22 of frame 12 to form a cavity that is deep enough to accommodate an electronic display . underlay 18 consists of the electronic display which is preferably about 2 - 3 inches thick , and cover 20 is placed directly on top of the electronic display . the electronic display may comprise a flat panel display , an lcd and the like . the electronic display is hooked up to a main server , allowing it to display menus , advertisements , including full motion video advertisements , or other commercial information with or without sound . cover 20 can be made into a touch screen so that a person sitting at the table may order from the menu or otherwise interact with the commercial information displayed by the electronic display . it will be apparent to those skilled in the art that modifications may be made without departing from the spirit and scope of the invention . accordingly , it is not intended that the invention be limited except as may be necessary .
a table top having a transparent cover through which inserts , such as advertisements , etc . can be viewed . the table top is configured for affixation to a base . the table top comprises a frame having sides , an underlay and a transparent cover . a cavity is formed in the base and is defined by the frame and base . the underlay and transparent cover are substantially planar and are configured to fit within the frame adjacent to each other . the insert is configured to be held between the cover and underlay such that one side of the insert is viewable through the cover .