Abstract: Methods and apparatus for separating and removing sand from fluid streams are provided. The apparatus is comprised of a closed separator vessel having first and second compartments therein. An inlet connection is attached to the vessel for introducing the fluid stream into the first compartment and filter means for separating sand from the fluid stream are disposed within the first compartment. The fluid stream is caused to flow from the first compartment through the filter means into the second compartment from where the fluid stream is removed by way of an outlet connection attached to the vessel. Conduit means attached through a wall of the vessel are disposed within the first compartment for conducting and periodically discharging sand wash liquid thereinto.

Abstract: A reversible door and frame assembly wherein the frame includes generally channel shaped hinge and lock frame members adapted for assembled cooperation with an upper head frame member and a lower sill member. The hinge side frame member carries a hinge plate at its midpoint and symmetrically positioned upper and lower hinge plates. The lock frame member has a dead bolt opening located at its midpoint and has a pair of openings spaced symmetrically from the dead bolt hole and behind which are mounting plates adapted to releasibly support interchangeable striker and cover plates.