cover panel conceals the faceplate the frame is of u shape and defines an opening in which the faceplate is received the frame has inwardly directed lips contiguous with a rear face of the frame that locate behind the faceplate on opposite sides of the opening clear of the fixing screws used to secure the faceplate to a mounting box the safety cover can be fitted by partially releasing the screws and sliding the lips under the faceplate as the frame is positioned around the faceplate and then tightening the screws to secure the faceplate and hold the frame in place by securing the lips under the faceplate application_number US 35216709 A description the plug socket combination shown in fig1 and 2 is quite conventional to avoid confusing complexity the figures do not show any of the wires leading to the socket nor do they show the details of the internal structure of the terminals mounted in a hole in the wall 11 is a metal socket box 12 with an inwardly directed front flange 13 onto which is affixed by screw headed bolts 14 engaging with threaded holes 15 the socket plate 17 the socket plate 17 contains the usual plug pin holes 18 earth ground live neutral into which fit the pins of the plug 19 fig3 and 4 show the cover of the invention u2014 both on its own fig3 b 4 b and in place over a socket plug combination fig3 a 4 a the socket plug combination is effectively the same as that shown in fig2 b details of the cover can perhaps more clearly be seen in fig5 and 6 briefly the cover of the invention is the combination of a.