referring particularly to fig1 – 4 of the drawings , there is shown a skateboard rail segment in the form of an elongated member 20 which is to be usable to form the skateboard rail of the present invention . the elongated member 20 would generally be in the range of six feet in length . the elongated member 20 has a top surface 22 , a bottom surface 24 , a right side 26 and a left side 28 . the right side 26 is approximately parallel to the left side 28 so in transverse cross - section the general configuration of the elongated member 20 is that of a rectangle . however , the width of the elongated member 20 at the bottom surface 24 is substantially wider than the width of the top surface 22 , which is readily apparent when observing fig4 . one reason for this is to increase the stability of the elongated rail when it is being used making it less likely to tip over . the elongated member 20 will generally be constructed of a plastic material and when fabricated will have a hollow internal cavity 30 in order to decrease the overall weight of the elongated member 20 . weighted material such as water , sand or shot can be inserted into cavity 30 by removing of cap 31 and pouring such in cavity 30 . when cavity 30 is filled , cap 31 is to be replaced . this will add weight to the member 20 making it less likely to flip over or move during use . formed within the top surface 22 is an elongated , open ended , constant width channel 32 . formed within the channel 32 are a plurality of sawteeth 34 . sawteeth 34 is divided into a series of groups with a cavity 31 dividing each directly adjacent groups of sawteeth 34 . formed within the bottom surface 24 is an elongated deep cavity 38 . within the cavity 38 is formed an elongated plateau 40 which extends the entire length of the cavity 38 . the exterior surface of the plateau 40 includes a plurality of spaced apart projections 42 . in referring to fig4 , another elongated member 20 can be placed in a stacked relationship with an elongated member 20 . the top surface 22 is located within the elongated cavity 38 and a projection 42 will rest within a cavity 34 to prevent longitudinal sliding movement of the elongated member 20 that is stacked on top of the other elongated member 20 . the right side 26 includes a series of spaced apart dovetail slots 46 . the left side 28 includes a series of spaced apart dovetail slots 48 . in between each directly adjacent pair of the dovetail slots 46 is located a dovetail protuberance 50 . in between each directly adjacent pair of the slots 48 is a protuberance 52 . the skateboard rail of the present invention can be constructed , as shown in fig5 , 6 and 8 , to be interlocked together side - by - side with each protuberance 50 being located within a slot 48 , and each protuberance 52 located within a slot 46 . it is to be understood that as many of the elongated members 20 could be arranged in a side - by - side manner as the user would wish to connect together . in fig5 , a first row of sawteeth 64 of the elongated member 20 that is located on top of the stack will engage with sawteeth 34 of a lower elongated member 20 and a second row of sawteeth 64 will engage with sawteeth 34 of the remaining lower elongated member 20 . also , two or more of the elongated members 20 could be stacked directly aligned , as shown in fig5 a , when stacked in this manner , as is also shown in fig4 , the first row of sawteeth 64 is located against right side 26 and the second row of sawteeth 64 is located against left side 28 . each projection 42 will rest within a cavity 34 . in between each directly adjacent pair of projections 42 is a group of the sawteeth 34 . each elongated member 20 has a front end 54 and a rear end 56 . the front end 54 includes a pin 58 . the rear end 56 includes a hole 60 . the front end 54 is shown to have a rounded configuration as does also the rear end 56 . the rear end 56 is formed into a thin flange shape . the main body of the elongated member 20 , which is located directly adjacent the rear end 56 , is formed into a curved wall 62 . a pin 58 of one elongated member 20 can be mounted in conjunction with a hole 60 and then that particular elongated member can be moved relative to the other elongated member 20 to which it is connected . this movement is such so that one elongated member 20 can be arranged at an angular displacement relative to the other elongated member to which it is connected . this type of connecting arrangement is shown in fig6 . the bottom surface 24 also includes a series of serrations formed by two rows of sawteeth 64 all along the bottom surface 24 with the exception of being located within the cavity 38 . one reason for the sawteeth 64 is that when the elongated members 20 are placed on certain supporting surfaces 66 , which is shown in fig1 to comprise a stair 68 , the sawteeth 64 facilitates grabbing onto and holding tightly onto the stair 68 . when utilizing of the elongated members 20 on certain supporting surfaces , such as a stair 68 , it is desirable to have the elongated member 20 to be maintained in its established position and not slide relative to the stair 68 . the sawteeth 64 also engage with sawteeth 34 when the members 20 are stacked in a laterally staggered relationship to prevent movement between members 20 . referring particularly to fig7 and 8 of the drawings , there is shown a table 70 which has an upper flat surface 72 which has a coping bump 74 and 76 located at each side edge . the coping bumps 74 and 76 extend the entire length of the table 70 . the undersurface of the table 70 includes a pair of spaced apart plateaus 78 and 80 . each plateau 78 and 80 will include a series of sawteeth 82 . the sawteeth 82 will function to engage in an interlocking manner with the sawteeth 34 . the table 70 can be placed on a pair of elongated members 20 that are mounted in a side - by - side manner , as is shown in fig8 . the flat surface 72 provides a wider flat surface for riding of the skateboard thereon as opposed to the thin surface that is provided by the top surface 22 of the elongated member 20 . referring particularly to fig9 and 10 of the drawings , there is shown a protective cover 84 . this cover 84 is constructed of hard sheet material , metal usually preferred , and it has a basic channel shape forming a pair of spaced apart parallel legs 86 and 88 with an apex section 85 extending therebetween . the space between the legs 86 and 88 is defined as a cavity 90 . the top surface 22 of the elongated member 20 is to be located within the cavity 90 in a snug relationship . there will probably be utilized fasteners , such as screws , to securely fasten each of the legs 86 and 88 to the right side 26 and left side 28 of the elongated member 20 . the whole purpose for the protective cover 84 is to provide a strong covering material that is wear resistant to the abrasiveness that it will inherently encounter by the constant use of having skateboards slide there across . instead of the top surface 22 taking the wear , the cover 84 takes the wear , and upon the cover 84 becoming significantly worn or damaged , it can be replaced . cover 84 has a groove 85 at one end and a tongue 87 at the opposite end . a tongue 87 of one cover 84 can interlock with a groove 85 of another cover 84 . referring particularly to fig1 and 12 of the drawings , there is shown a different form of protective cover 92 . the cover 92 is defined on its upper surface by a flat , elongated , open ended channel 94 which is formed between each side edge of the cover 92 which is formed into coping bumps 96 and 98 . the free edges 97 and 99 , respectively , of each of the coping bumps 96 and 98 are to abut against their respective side edges 26 and 28 of the elongated member 20 . the side edges 26 and 28 may include elongated grooves so that the side edges of the coping bumps 96 and 98 can merely slip within those grooves , which are not shown . the same is true for fig9 . the main distinction of the protective cover 92 is that it provides a little different surface that when maneuvering the skateboard across the protective cover 92 as opposed to when utilizing the protective cover 84 . cover 92 has a groove 91 at one end ( similar to groove 85 ) and a tongue 93 at the opposite end ( similar to tongue 87 ). the coping bumps 96 and 98 provide a greater degree of control . referring particularly to fig1 , there is shown a connector 100 . the connector 100 is formed of a male part 102 and a female part 104 . the male part 102 has a top surface 106 which has a longitudinal open ended channel 108 . the female part 104 has a similar top surface 110 which also includes a longitudinal open ended channel 112 . the male part 102 and the female part 104 are connected together by a pivot pin 114 which produces a pivot axis 116 . it is to be noted that this pivot axis 116 , when used in conjunction with elongated member 20 , will be located transverse or at a right angle to the longitudinal axis 118 of the elongated member 20 . the bottom surface of both the male part 102 and the female part 104 is formed into a sawtooth edge 120 . the function of the sawtooth edge 120 is for the same purpose as the sawteeth 64 . the male part 102 includes a pin 122 and the female part 104 includes a hole 124 . the connector 100 can be utilized to connect two of the elongated members 20 together . when so connected , the elongated members 20 can be located at various angularly spaced relationships . for example , noting particularly fig1 , it can thus be seen that with the pin 122 being mounted within a hole 60 of the elongated member 20 , and with a pin 58 of the elongated member 20 mounted within a hole 124 of the connector 100 , and with the pin 122 being mounted within a hole 60 of the elongated member 20 , that one elongated member 20 can be displaced at any angular relationship relative to the other elongated member 20 by merely pivoting about the pivot axis 116 by means of the pivot pin 114 . the channels 108 and 112 in essence match up with the channel 32 in the elongated member 20 . as a result , the skateboarder can use the connectors 100 to form different configurations of an edge on which to ride the skateboard . for example , in fig1 the skateboard can traverse in a horizontal manner and then down a vertical manner along the stair 68 and then back into a horizontal manner . the discussion included in this patent is intended to serve as a basic description . the reader should be aware that the specific discussion may not explicitly describe all embodiments possible and alternatives are implicit . also , this discussion may not fully explain the generic nature of the invention and may not explicitly show how each feature or element can actually be representative of a broader function or of a great variety of alternative or equivalent elements . again , these are implicitly included in this disclosure . where the invention is described in device - oriented terminology , each element of the device implicitly performs a function . it should also be understood that a variety of changes may be made without departing from the essence of the invention . such changes are also implicitly included in the description . these changes still fall within the scope of this invention . further , each of the various elements of the invention and claims may also be achieved in a variety of manners . this disclosure should be understood to encompass each such variation . particularly , it should be understood that as the disclosure relates to elements of the invention , the words for each element may be expressed by equivalent apparatus terms or method terms — even if only the function or result is the same . such equivalent , broader , or even more generic terms should be considered to be encompassed in the description of each element or action . such terms can be substituted where desired to make explicit the implicitly broad coverage to which this invention is entitled . it should be understood that all actions may be expressed as a means for taking that action or as an element which causes that action . similarly , each physical element disclosed should be understood to encompass a disclosure of the action which that physical element facilitates . such changes and alternative terms are to be understood to be explicitly included in the description .
a skateboard rail which is composed of a plurality of members which are to be connected together in an end - to - end relationship . the members are capable of being pivoted relative to each other . the members are capable of being stacked vertically and also are connectable together side - by - side to form an expanded horizontal rail .