Abstract: A retaining wall comprising a grid-shaped framework fabricated by a plurality of groups of members joined end to end in a vertically aligned relationship and another plurality of groups of members also joined end to end in a horizontally aligned relationship. The ends of the vertically positioned members meet the adjacent ends of the horizontally positioned members at right angles thereto to define a multiplicity of cruciform patterns which combine in a mutually overlapping manner to form the retaining wall.

Abstract: A cooking utensil, such as a frying pan for reducing splattering comprises an open top base member having a bottom and an upstanding sidewall integrally formed therewith. The sidewall is provided with a plurality of apertures disposed therearound. A lid which seatingly engages the base member is provided with a central vent.

Abstract: An adjustable locking device for a railroad car rack separator, such as those used to separate racks containing automotive sheet metal stampings, such as fenders. The device comprises a rotatable plate having a central keyway which plate after rotation is shiftable along a notched bar to be positioned in a notch and after further rotation lockingly abuts the rack.

Abstract: A semi-trailer having an elongated frame constructed to support mobile machinery such as a bulldozer, a small crane, a backhoe and the like, and having a pair of ramps for supporting three automotive passenger vehicles such as pick-up trucks when not employed for transporting machinery.

Abstract: A gasoline or other fuel storage tank associated with a fuel-powered vehicle has a recoiled spring disposed therewithin to prevent the siphoning of the fuel therefrom.

Abstract: Apparatus for casting concrete septic tanks, burial vaults and the like includes an inner form and an outer form. The inner form includes apparatus for positively locking the cover plate to the inner form as the walls thereof are expanded. The inner form, also, includes an improved mode for expanding same.

Abstract: A bi-fold door assembly of the type adapted to be mounted in a doorway having opposing parallel jambs and a connecting header, the bi-fold door assembly including at least one jamb door pivotably secured to one jamb and a lead door having means hinging the same to the jamb door. In one embodiment, a header track having a U-shaped cross section having inner opposing legs with longitudinally disposed and transversely spaced flanges defining a longitudinal slot thereinbetween. The flanges slidably support a pivot assembly carried by the lead door to guide the lead door between its opened and closed positions.