Abstract: A pipe cleaning apparatus adaptor assembley (1A) consists of an adaptor (2) arranged to be connected adjacent an opening (101) of a pipe (100) to be cleaned and a flange head plate (12) to close the opening (101) of the pipe (100). The flange head plate (12) has at least one opening (19) therein. The flange head plate (12) is releasably retained with the adaptor (2) by pins (7) received in apertures (13). The opening (19) of the flange head plate (12) is able to receive a supply of compressed air which is able to travel through the opening (101) of the pipe (100) and into the pipe (100). The flange head plate (12) is removable from the adaptor (2) so that, in use, a cleaning pellet (70) is insertable into the opening (101) of the pipe (100) and then the flange head plate (12) can be returned to close the opening (101) of the pipe (100) and again be retained with the adaptor (2).

Abstract: (57) Abstract: A compressed air discharge device (1) having an inlet (6) for entry of air into the device (1) and an outlet (8) for discharge of air from the device (1). First, second, third and fourth passages (10, 12, 14, 16) are provided for flow of air. A first valve (18) controls flow of air from the first passage (10) to the third passage (14). A second valve (20) controls passage of air from the third passage (14) to the fourth passage (16). T he first passage (10) is provided between the inlet (6) and the first valve (18). The third passage (14) is provided between the first and second valves (18, 20). The fourth passage (16) is provided between the second valve (20) and the outlet (8). A trigger (36) operates the first valve (18) to allow air to flow therethrough into the second and third passages (12, 14). The second passage (12) is arranged so that air is able to enter the second passage (12) upon the first valve (18) being opened.

Abstract: An assembly for providing air assisted insertion of a draw line such as a string line or the like through a conduit or network of conduits; the assembly comprising: a pneumatic gun (1) including a housing having an internal chamber with an entrance and an exit, a handle (3) attached to or integral with said housing and having a bore therethrough in communication with said internal chamber (2) and at an entrance to said bore means to facilitate receipt of pressurized air from a pressurized air source (4); a spool unit (41) integrally or detachably connected direct or indirectly to said pneumatic gun (1) and which receives and retains therein a line spool, or cartridge, said spool unit (41) including a chamber which terminates in an opening in communication with the internal chamber of said pneumatic gun and through which a line on said line spool travels; wherein, upon actuation of a trigger on the pneumatic gun (1) pressurized air from the air source (4) urges the draw line, through the gun and upon exiting s

Abstract: A multipurpose air tool (1) having a handle (2) to which a head (3) can be removably attached is disclosed. The head (3) has attached thereto various such tools as a face plate (4) and replaceable nozzles (5). The head (3) is interlocked to the handle (2) by a spigot (19) and bayonet connection (21, 23, 34). A safety interlock (16) prevents operation of the trigger (15) and valve (12) unless the head (3) is correctly positioned on the handle.