A double-acting piston engine has a crankshaft rotatable about a first central axis and having a crankpin having a second central axis which is spaced a distance from the first central axis, a cylinder assembly having a pair of cylinder chambers confronting each other along an axial line perpendicular to the first central axis, with the crankpin being disposed substantially between the cylinder chambers, and a piston assembly slidably disposed in the cylinder chambers and coupled to the crankpin...

The present invention is concerned with a quick-acting gate valve for installation on intake and exhaust openings of ventilation systems, in particular, of rapid railway vehicles, comprising a frame containing at least one passage slot provided with an adjustable closure element which relative to the passage slot can be placed into closed and open positions by a servo drive controlled in response to air pressure. In order to permit actuation of a quick-acting gate valve of this type substantiall...

The present invention provides a compound of formula (I): ##STR00001## wherein all variables are as defined herein, pharmaceutical formulations containing the same, processes for preparing the same and their use therapy.

A latch has a pair of oppositely acting latch bolts slidable on a housing that are engageable with latching formations on a strike. The housing has a pair of substantially parallel posts configured to shield portions of the latch bolts during insertion into and withdrawal from openings defined by the strike. A plug is turnable on the housing to slide the latch bolts toward and away from each other between latched and unlatched positions. In lockable embodiments of the latch, the plug may be prov...

A synergistic herbicidal mixture comprising A) at least one 3-heterocyclyl-substituted benzoly derivative of the formula I ##STR00001## in which the variables have the following meanings: R.sup.1, R.sup.3 are halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl; R.sup.2 is a optionally substituted heterocyclic radical selected from the group: isoxazol-3-yl, isoxazol-4-yl, isoxazol-5-yl, 4,5-dihydroisoxazol-3-yl, 4,5-dihydroisoxazol-4-yl and 4,5-dihydroisoxazol...

It has now been found that compounds of the present invention as described in Benzodiazepine derivatives of Formula (I) containing a carboxylic ester moiety and thereby capable of being inactivated by nonspecific tissue esterases in an organ-independent elimination mechanism and thereby providing a more predictable and reproducible pharmacodynamic profile. The compounds of the present invention are suitable for therapeutic purposes, including sedative-hypnotic, anxiolytic, muscle relaxant and an...

An upwardly-acting door structure is adapted to close an access opening of a body member, such as an automobile-carrying railroad car. The door structure includes a stationary track on either side of the opening, movable tracks mounted for upward and downward movement along the stationary tracks, an upper panel mounted on the movable tracks, a lower panel mounted to move upwardly and downwardly along the movable tracks at twice the speed, flexible chains arranged to interconnect the lower panel ...

A double-acting wrench has a main handle and a holding handle, the end of the main handle being connected to a set of reversing gears, and through a ratchet and double pawls to the cage in which the set of reversing gears are mounted. The reversing gears, or the cage in which they are mounted, are selectively connected to a tool driver. Ratchets and double pawls are engageable so that rotation of the main handle in either clockwise or counterclockwise direction with respect to the holding handle...

An upwardly-acting sectional door composed of a plurality of sections for sliding from a vertical track which aligns the sections in a vertical plane around a curved track to a horizontal track which aligns the sections in a horizontal plane. The sections are hinged together and each section is substantially the same throughout its width or length so that it may be cut off to provide any width door. The sections comprise an extruded or formed foamlike light material of a good heat insulating pro...

A double-acting can crusher comprising a frame, a shaft rotatably mounted in the frame, a substantially cylindrical sheath extending horizontally above the shaft in parallel relation thereto, a pair of spaced cylindrical crushing blocks mounted at the horizontal ends of the sheath, a substantially rectangular upper opening extending along the top portion of the sheath and being sufficiently wide to permit the passage of uncrushed cans into the sheath, a lower opening in the sheath extending long...