wherein the measuring chamber reciprocates

Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it > with measuring chambers moved during operation > of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements > wherein the measuring chamber reciprocates

Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it > with measuring chambers moved during operation > of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements (involving the tilting or inverting of the supply vessel G01F11/26) > wherein the measuring chamber reciprocates