Mechanically and manually actuated transport and handling machines for lifting or gripping of loads with the aid of vacuum, namely, vacuum-tube lifters, lifting hoists, handling balancers and replacement parts therefor, namely, vacuum pumps, flowers, ejectors, suction pads, check valves, flow resistors, pressure and vacuum switches, non-return valves, swivel connectors, vacuum hoses, bellows, vacuum pumps and blowers, vacuum reservoirs, mechanical vacuum seals, filters, mechanically operated ...