Abstract: Omega-((hetero)alkyl)benz(cd)indol-2-amines useful in inhibition of thromboxane synthetase and in treatment of hypertension in warm-blooded animals are disclosed.

Abstract: N.sup.1 substituted benz [cd] indol -2(1H)-imines useful as inhibitors of Thromboxane synthetase enzyme, hypertension and arrhythmia are described.

Abstract: This disclosure describes novel esters of (triarylphosphoranylidene)carbamic acid which are useful as diuretic agents.

Abstract: N-[(1H-imidazol-1-yl)alkyl]benz[cd]-indol-2 amines useful as inhibitors of thromboxane synthetase enzyme, hypotensive agents and cardioprotective agents are described.

Abstract: A dockboard comprising a ramp assembly, a frame for supporting the ramp assembly for pivotal movement in a pit formed in a loading dock, a hydraulic piston-cylinder assembly mounted on the bottom of the pit in the loading dock for pivoting the ramp assembly with respect to the supporting means, a lip assembly pivotally mounted on the free end of the ramp assembly, a hydraulic piston-cylinder assembly mounted on the ramp assembly for pivoting the lip assembly to an extended position forming a continuation of said ramp assembly, the ramp assembly including a tread plate and a plurality of hinge plates mounted in a parallel spaced relation on the tread plate, each hinge plate including an ear, and a stop bar mounted on the end of the ramp assembly in the path of travel of the ears for limiting the pivotal movement of the lip assembly.

Abstract: Testing apparatus is disclosed for vehicle steering mechanisms and similar devices for applying a controlled force to a test member. A vertically reciprocable platen carries a hydraulic actuator for applying controlled force to a pivotable test member. The hydraulic actuator is reciprocable along a transverse axis and is connected with the test member by a pivotable coupling. A pivotable link is pivotally connected with a stationary frame and with the mounting frame of the actuator. The distance between the two pivot points on the pivotable link is the same as the distance between the pivot axis of the test member and the pivot axis of the coupling whereby the actuator is caused to traverse an arcuate path when the platen is reciprocated and it thereby follows the arcuate path of the pivotal test member.

Abstract: An independent dockboard of the type adapted to be mounted in a pit in a loading dock, the dockboard including a main frame, a ramp pivotally mounted on the frame and including a tread plate assembly mounted for telescopic movement into and out of the ramp, the tread plate assembly including a tread plate mounted on a frame with a number of wheels for supporting the assembly for movement on the ramp, the tread plate assembly being pivoted about the axis of the wheels, a lift frame pivotally mounted on the main frame and operatively positioned to engage the ramp, a hydraulic piston and cylinder assembly operatively engaging the left frame and a second hydraulic piston and cylinder assembly operatively connected to move the tread plate assembly into and out of the ramp, and an over center toggle link assembly to lock the tread plate against the ramp.

Abstract: A restraining device or "keeper" for locking a truck having an ICC bar to a dock, the device including an arm pivotally secured to the front of the dock for movement between a storage position against the front of the dock and an operative position extending outward from the dock, a restraining bar mounted for vertical movement relative to the swing arm to a position to block the path of motion of the ICC bar away from the dock, and a latch assembly for locking the swing arm in the operative and inoperative positions.

Abstract: This disclosure describes novel 2-(4-substituted-1-piperazinyl)[1,2,4]triazolo[1,5-a]pyrimidines useful as hypotensive agents.

Abstract: This disclosure describes certain pyrazolo[1,5-a]pyrimidines useful as hypotensive and/or anxiolytic agents, or as agents for the treatment of cognitive and related neural behavioral problems in mammals.

Abstract: This disclosure describes novel pyrazolylpiperazines useful as hypotensive agents in mammals and as intermediates for the preparation of certain pyrazolo[1,5-a]pryrimidines.

Abstract: This disclosure describes novel substituted 2-(pyridyl)imidazol-4-yl ketones and derivatives thereof which possess activity as hypotensive agents.

Abstract: This disclosure describes novel 1-(5-amino-4H-1,2,4-triazol-3-yl)-4-substituted-piperazines which are useful as hypotensive agents in mammals.

Abstract: This disclosure describes novel N'-[2,6-dichloro-4-(substituted-benzylamino)phenyl]-N,N-dimethyl-formamidi nes which possess activity as hypotensive agents and as diuretics.

Abstract: This disclosure describes novel N'-[2,6-dichloro-4-(substituted-benzylideneamino)phenyl]-N,N-dimethylforma midines which possess activity as hypotensive agents and as diuretics.

Abstract: Structure for and method of compensating for a mechanical frequency response structure induced phase shift of an alternating electrical command signal in a closed loop control circuit so that magnitude errors independent of phase errors may be utilized in the control circuit. The structure includes a mechanical structure to be controlled having a mechanical frequency response to the cyclic command signal, an electronic frequency response circuit for producing a phase shift in the command signal substantially the same as that produced by the mechanical frequency response structure over the frequency range of the command signal, and structure for summing the error signal from the mechanical frequency response structure and from the electronic frequency response circuit to provide a magnitude error only signal, and means for providing an output signal when the selected error signal is outside of a permissible error signal range.

Abstract: Structure for and a method of detecting peaks in an electric signal comprising circuits for and the steps of converting a selected one of a plurality of analog signals into a current digital signal, comparing the developed digital signal with a digital signal previously developed from the selected analog signal and stored, and replacing the previously developed and stored digital signal with the current digital signal when the current digital signal is greater than the previously developed and stored digital signal and of the same polarity, and providing for readout of the currently stored digital signal in either analog or digital form.Direct reading of the digital output in terms of standard engineering units is provided for. Also, the analog input signal may be directly read at the output of the peak detector and the peak detector may be utilized as a volt meter with a direct current signal passed directly into a digital output portion of the peak detector.

Abstract: A door operator includes a double acting power cylinder with a dual metering valve mounted thereon. The valve unit includes an external tube with a sliding control piston coupled to the power cylinder for corresponding selected movement. A pair of spaced metering assemblies are secured to the tube and each includes a supply-exhaust port connected through a four-way valve means to an air supply and an exhaust, and connected to provide air flow to and from opposite end heads of the power cylinder. Each assembly has a one-way supply passageway, a central speed control passageway and a fixed damping passageway. The latter two passageways each have a small needle valve control and the speed control passageway is selectively blocked by the control piston.The power and damping cylinder assembly includes a mounting enclosure with the controls therein and with the power cylinder piston rod pivotally connected to a tubular drive arm.