Red Swingball Tri-lattice Checkerbat ®
40 x 18.5 cm
Inscribed on the racket edge "265 TL TRILATTICE TM CHECKERBAT ® US PAT 5,961404 EPO PAT 98300 988.7-2315 PATS APPLY OTHER COUNTRIES", PP / 37mm 1.45'' / 5 / 265g 9.3oz / 363 CM3 56''2", TRILATTICE"
Found on cnr. Pembridge Crescent/Pembridge Road, Sunday 27 October 2013
Swingball: Two players stand at opposite sides of a central pole each armed with their CHECKERBAT. A ball tethered to the pole is hit by each player alternately, one player hitting in a clockwise direction around the pole for the duration of each game and the other anti-clockwise. Loose Loop should be placed at the centre of the 'Sleeve' at the start of the game. Winner is the first to reach 'Freewheel Groove'.
Tri-Lattice: "According to the present invention there is provided a rigid cell structure comprising a first and second substantially parallel perforate planar members maintained in a fixed spaced relationship from each other by means of a plurality of spacer members; the perforations in the planar members comprising at least 40% of their surface area and all areas between perforations being adapted for load bearing at a loading of at least 20 kilograms per square metre; the perforate nature of both surfaces and the disposition of spacer members being such that gases or liquids may freely pass through the composite structure around the spacer means [sic - members] in any direction. The present invention also teaches a method of providing drainage utilising the lastmentioned apparatus. In addition to roof-top garden applications it is envisaged that the invention may be of use to provide drainage under roadways, under embankments and elsewhere where surface erosion would otherwise be a problem."
