A clear liquid filter for removing solid particles from a liquid or slurry comprises a chamber having a filtration screen. A washer arm is positioned adjacent the interior surface of the chamber and is relatively movable in a direction parallel to the filter screen surface. The washer arm may comprise a rigid imperforate plate in the interior of the chamber and positioned rather close to but spaced from the screen. Various kinds of washer arms are disclosed. The construction of the washer arm in...

Apparatus for distributing a processing liquid between two sheets of material including a stationary spreader member and a movably mounted spreader member pivotally connected to each other by a rod to form a pressure-generating gap therebetween. The rod functions as a spring urging the movable spreader member towards the fixed spreader member when the spreader members are in a liquid-spreading position, and the rod acts as a support when the movable spreader member is pivoted towards an inoperat...

A liquid pump having a piston head carried by a piston rod and located in a cylinder between an inlet and outlet, the head being of a type that enables passage of fluid in the cylinder from the inlet side of the head to the outlet side upon head movement in a first direction, and delivering fluid on the outlet side of the head to the outlet and drawing fluid from the inlet into the inlet side upon head movement in the opposite second direction. A motor means includes a rotatable eccentric engage...

Method and apparatus for dispensing a precise amount of liquid from a sealed container into a syringe, open at one end, without engaging the syringe plunger. A positive and negative pressure is successively applied to the liquid in the sealed container forcing it through a conduit into the syringe. The predetermined position of the conduit in the syringe determines the level of the liquid in the syringe.

A device for dispensing liquid into cans moving along a straight path. A rotating reservoir holds liquid at a desired head pressure, and has spaced peripheral bottom outlets. A pair of chains is joined together by a series of vertical rods and driven by sprockets along a horizontal path, part of which parallels the can path, the chains and reservoir being driven in synchronization. Valve carriages are slidable up and down, each on a pair of the rods, and each carriage supports a valve housing th...

Repetitive sampling of liquid from a body thereof is controlled in frequency, dependent upon the depth of the liquid being sampled, so as to accord with the volume of the body thereof. Such depth-proportioning is accomplished, in a system using pressurized gas as a propulsion fluid and determining sampling frequency by gradual release thereof from a source to accumulate to a switching pressure at a given location, through bleeding off part of the accumulating gas against the back pressure of the...

The disclosure relates to a liquid coupling for connecting a path between a casing and a rotor within the casing, the path being around the rotor and then normal to the axis of the rotor to the rotor center where it communicates with an outlet passage to decrease rotor wear due to abrasion thereof with the casing.

A device for separating two liquids of different density includes a closed tank having an entry section of relatively small area with an overflow into a relatively large area settling tank. The large area settling tank has a withdrawal portion at its top which permits overflow of the lighter liquid into a trough and delivery downwardly into a relatively small area intermediate tank portion. The small area intermediate tank portion in turn has an overflow only for oil into a recovery tank at one ...

An article for receiving a small sample of liquid and holding the sample in a chamber of predetermined shape so that indicia on the bottom of said chamber can be viewed through the liquid and thereby used to accurately determine the level of contamination of the sample.

A laser using a liquid laser medium which comprises a doping medium in solution in a solvent wherein the solvent includes thionyl chloride (SOCl.sub.2). The thionyl chloride permits an operating temperature range far greater than that found in the prior art.