Brush

A brush comprising a head including a plurality of bristles thereon, at least one outlet in the head feeding to said bristles, a container of paste connected to said head, and actuating means for feeding paste from the container longitudinally of the brush to the head, at least one control valve associated with a respective one of said at least one outlet comprising a flexible plastics material including a diaphragm portion and a nose portion extending from one side of the diaphragm portion, the control valve being positioned within the head with a central axis thereof substantially perpendicular to the direction of flow of paste to the head and having a normal rest position in which the nose portion engages in, to seal, the respective outlet in the head, the other side of the diaphragm portion of the control valve remote from the nose portion being open to the atmosphere, the arrangement being such that, on operation of the actuating means, paste is fed under pressure from the container to the head to engage with the one side of the diaphragm portion to distort said diaphragm portion, whereby the nose portion of the valve is displaced from the outlet and paste is dispensed therethrough, and, on subsequent depressurisation of the paste, the control valve returns, under the influence of its inherent flexibility and atmospheric pressure, to its rest position with the nose portion seating in, to seal, the respective outlet.