in the summary of the invention above , and in the detailed description of the invention , and in the accompanying drawings , reference is made to particular features ( including method steps ) of the invention . it is to be understood that the disclosure of the invention in this specification includes all possible combinations of such particular features . for example , where a particular feature is disclosed in the context of a particular aspect , a particular embodiment , or a particular figure , that feature can also be used , to the extent appropriate , in the context of other particular aspects , embodiments , and figures , and in the invention generally . the term “ comprises ” and grammatical equivalents thereof are used herein to mean that other elements ( i . e . components , ingredients , steps etc .) are optionally present . for example , a pedestal “ comprising ” ( or “ which comprises ”) components a , b and c can contain only components a , b and c , or can contain not only components a , b and c but also one or more other components . the term “ at least ” followed by a number is used herein to denote the start of a range beginning with that number ( which may be a range having an upper limit or no upper limit , depending on the variable being defined ). for example “ at least 1 ” means 1 or more than 1 . the term “ at most ” followed by a number is used herein to denote the end of a range ending with that number ( which may be a range having 1 or 0 as its lower limit , or a range having no lower limit , depending upon the variable being defined ). for example , “ at most 4 ” means 4 or less than 4 . when , in this specification , a range is given as “( a first number ) to ( a second number )” or “( a first number )−( a second number )”, this means a range whose lower limit is the first number and whose upper limit is the second number . for example , “ from 8 to 20 inches ” or “ 8 - 20 inches ” means a range whose lower limit is 8 inches , and whose upper limit is 20 inches . the terms “ plural ” and “ plurality ” are used herein to denote two or more than two items . where reference is made herein to “ first ” and “ second ” elements , this is generally done for identification purposes ; unless the context requires otherwise , the first and second elements can be the same or different , and reference to a first element does not mean that a second element is necessarily present ( though it may be present ). where reference is made herein to “ a ” or “ an ” element , this includes the possibility that there are two or more such elements ( except where the context excludes that possibility ). where reference is made herein to two or more elements , this includes the possibility that the two or more elements are replaced by a lesser number or greater number of elements providing the same function ( except where the context excludes that possibility ). the numbers given herein should be construed with the latitude appropriate to their context and expression ; for example , each number is subject to variation which depends on the accuracy with which it can be measured by methods conventionally used by those skilled in the art . some of the components used in this invention are defined as having “ a substantially constant generally rectangular core cross - section ”. those components are also defined as having recessed and projecting sections and / or channels in their top and / or bottom surfaces . the term “ core cross - section ” is used herein to denote the largest - area cross - section which can be drawn by four straight lines within the actual cross - section of the component . the term “ generally rectangular core cross - section ” is used herein to denote any core cross - section which has a closed perimeter and which is rectangular or which provides the same functionality as a rectangular cross - section . thus , the generally rectangular core cross - section can , for example , be a square ; a rectangle whose height is substantially greater than , e . g . at least twice , its width ; a rectangle whose height is substantially less than , e . g . less than 0 . 5 times , its width ; a parallelogram ; a trapezium ; or a circle or an oval which has been modified so that the cross - section has flat top and bottom surfaces . the component can be solid , or it can contain one or more voids . the term “ substantially constant ” in the term “ substantially constant generally rectangular core cross - section ” means that the cross - section is constant , as is generally preferred , or varies ( regularly or irregularly ) in a way which provides the same functionality , and optionally the same appearance , as a constant cross section . the vertical components used in this invention preferably have a bottom surface which comprises at least one recessed section and at least one projecting section , thus defining a projecting section which can fit slidably into a straight open channel in the upper surface of a horizontal component and / or a recessed section which can fit slidably over a straight projection on the upper surface of a horizontal component . the vertical components can optionally have a top surface which comprises a plurality of block channels . the pedestals of the invention can contain two or more vertical components which are fitted slidably to the same or different horizontal components . in some embodiments , the pedestal includes first and second block components , which may be the same or different , and a plurality of horizontal support members , each support member being slidably fitted into a block channel in the first block component and a block channel in the second block component . the support members can for example be at an angle , preferably a right angle , to the lower support members . in some embodiments , at least some , preferably all , of the support members are as disclosed in u . s . pat . no . 7 , 407 , 144 . the bottom surface of the vertical component can optionally have one or more of the following features . ( a1 ) it comprises a single elongate projecting section and two elongate recessed sections , one on each side of the projecting section . ( a2 ) it comprises a plurality of projecting sections , the number of projecting sections being n , and a plurality of recessed sections , the number of recessed sections being from n − 1 to n + 2 , so that the component can be fitted , preferably slidably fitted , over a plurality of adjacent straight , parallel and equispaced support members , with at least some of the projecting sections extending downwards between a pair of adjacent support members and at least some of the recessed sections resting on a support member . in one embodiment , there are two projecting sections , and three recessed sections , and the projecting sections are positioned and shaped so that the block components can be placed in a number of different orientations over a plurality of parallel straight support members , for example so that the channels in the block component are at right angles to , or parallel to , or at an angle ( e . g . about 45 °) to , the support members . the projecting sections can for example have a round cross - section , or a regular polygonal , e . g . octagonal , cross - section . ( a3 ) it comprises two projecting sections and a single recessed section between the two projecting sections , so that the component can be slidably fitted over a single straight support member or over a plurality of straight and parallel support members , with the recessed section resting on the support member or support members , and the projecting sections extending downwards adjacent to the side of a support member . ( a4 ) the bottom surface of the component comprises a single projecting section and two elongate recessed sections , one on each side of the projecting section , the projecting section having a cross - section , e . g . a round cross - section , which enables it to rotate and to slide between a pair of adjacent straight and parallel support members , so that the component can be slidably and rotatably fitted over a pair of adjacent straight and parallel support members , with the projecting section between the support members and the recessed sections resting on the support members . the ability of the component to rotate can be through 360 ° or through some smaller angle , and the component can comprise stops or other means which enable a user to set the angle at a desired value and / or to recognize when the angle is at a desired value . ( a5 ) it is such that the component can be slidably fitted over a support member or a plurality of support members as disclosed in u . s . pat . no . 7 , 407 , 144 . the top surface of the vertical component can be of any kind . it can for example be planar , e . g . so that it can support tableware , or it can have a non - planar configuration which fulfills a desired functional or decorative purpose . in some block components , the top surface comprises a plurality of block channels such that horizontal upper straight support members can be placed parallel to each other in the block channels . the block channels can for example have one or more of the following characteristics . ( b1 ) they are shaped and located so that it is possible to place a plurality of support members in the block channels so that the support members are at an angle , preferably at a right angle , to the lower support member or members over which the bottom surface of the component can be fitted ; for example the block channels are at right angles to the projecting section or sections forming part of the bottom surface of the component . ( b2 ) the distance between the block channels is substantially the same as the width of the projecting section or sections on the bottom surface . ( b3 ) the height and / or width of the block channels in the top surface is substantially the same as the height and / or width of the recesses in the bottom surface . ( b4 ) at least some , preferably all , of the block channels are such that support members as disclosed in u . s . pat . no . 7 , 407 , 000 144 can be slidably fitted therein . ( b5 ) there are 2 to 8 , e . g . 3 to 6 , for example 5 , channels . ( b7 ) the block channels are sized and positioned , and the bottom surface of the component is configured , so that , if two upper support members are placed in two adjacent block channels , an identical block component can be slidably fitted over two upper support members . ( c1 ) the component has block channels in its upper surface and has at least one of the following features ( i ) a core cross - section which is rectangular ( including square ), ( ii ) the ratio of the width to the height of the core cross section is from 0 . 5 : 1 to 1 : 40 , e . g . 1 : 1 to 1 : 6 , for example 1 . 5 : 2 to 1 : 4 , ( iii ) the area of the core cross section is 2 to 16 , for example 3 to 8 , in . 2 , and ( iv ) the component is 3 to 20 inches , e . g . 4 to 10 inches , long , and / or 1 to 6 inches , e . g . 1 . 5 to 3 inches wide , and / or 0 . 5 to 8 inches , e . g . 1 to 4 inches high . ( c2 ) the component does not have block channels in its upper surface , for example is planar , and has at least one of the following features ( i ) a core cross - section which is rectangular , ( ii ) the ratio of the width to the height of the core cross section is from 4 : 1 to 40 : 1 , e . g . 10 : 1 to 30 : 1 , for example 6 : 1 to 2 : 1 , ( iii ) the area of the core cross section is 2 to 16 , for example 3 to 8 , in . 2 , and ( iv ) the component is 3 to 20 inches , e . g . 4 to 10 inches , long , and / or 1 to 6 inches , e . g . 1 . 5 to 3 inches wide , and / or 0 . 5 to 8 inches , e . g . 1 to 4 inches high . ( c4 ) the component comprises ( i ) a bottom portion which provides the bottom surface , and ( ii ) a top portion which provides the top surface and which is rotatably connected to the bottom portion , so that when the bottom portion is fitted over one or more support members , the top portion can be rotated relative to the bottom portion . the ability of the top and bottom portions to rotate can be through 360 ° or through some smaller angle , and the component can comprise stops or other means which enable a user to set the angle at a desired value and / or to recognize when the angle is at a desired value . the bottom surface of the horizontal component can be planar , so that it can be placed on a flat horizontal surface , or can be configured so that it can be located on top of other components of a pedestal . the horizontal components can optionally have one or more of the following characteristics . ( d1 ) each of the length l and the width w is at least 20 times , e . g . at least 40 times , the thickness h . ( d2 ) it is sufficiently rigid to remain substantially planar when it is placed on an irregular generally horizontal surface . ( d3 ) the base channels have a depth substantially equal to the depth of a projecting section on the bottom surface of a block component , or a lesser depth , for example 0 . 04 to 0 . 25 inch , e . g . 0 . 04 to 0 . 125 inch in the third aspect of the invention , the components for a pedestal according to the first aspect of the invention can be packed into any suitable container , optionally having compartments for different components , for example a box or a bag , for example a cardboard box or fabric bag . the components can be selected so that they can be assembled into a wide variety of pedestals of different functionalities , shapes , dimensions and decorative appearances . the invention makes it possible for users to transport a kit of relatively small dimensions to , for example , a particular catering or display event , and to construct , on site , one or more pedestals adapted to the particular requirements of the event . the components are preferably such that , after the event , they can be easily disassembled , cleaned ( for example in commercial washing facilities ) and repacked as a compact kit for transport to storage or to another event . reference is now made to the figures , in which the same reference numerals are used to denote the same or similar features . fig1 is a side view of a first pedestal of the invention which comprises lower and upper horizontal components 5 and 22 and two vertical components 1 . the lower horizontal component 5 has channels 51 in its upper surface , and each of the vertical components has a bottom surface having two recessed sections 13 and a projecting section 12 which fits slidably into one of the channels 51 . the upper horizontal component 22 is a planar horizontal component having a bottom surface which is configured so that it is located on top of the vertical components . fig2 and 3 show top and end views of a second pedestal of the invention which has the same side view as the pedestal shown in fig1 . in fig2 and 3 , the top surfaces of the vertical components 1 and 2 have channels 15 therein , and supporting members 22 are fitted slidably in the channels 15 and extend between the vertical components .
a pedestal which comprises a horizontal component and one or more vertical components which fit into open channels or fit over straight projections in the upper surface of the horizontal component . the pedestals are particularly useful in the catering and hospitality industry for supporting food and beverage containers , tableware , flower vases and sculptures .