any conventional hardened rubber having predetermined limited compressability sufficient to be compressed to some degree comparable to the fig4 helical spring arrangement while offering resistance excessive compressive compressability and softness and or to any excessive degree of resiliency to an extent that would defeat the above stated objects fig1 illustrates another alternate embodiment as compared to the embodiment of fig4 and the embodiment of fig1 differing in that in this embodiment there is utilized a conventional type pneumatic compression cylinder 47 with its component parts inclusive of the piston compression disc member 44 mounted on a cylinder shaft 24 39 c movable within the space 51 of the cylindrically shaped cylinder tube 45 having an air intake one way valve 46 and support spokes 48 such that the air within space 51 of the cylinder tube 45 is intermittently compressible the support beam members 24 39 aa and 24 39 a and upper beam member 24 39 b straddle and circumscribe the cylinder 47 with the lower beam 24cc being anchored to and moving with the lower end 24 39 responsive to alternate intermittent movements apart and toward one another of the upper end 27aa and the lower end 24 39 fig1 illustrates a front view of the embodiments illustrated in.