Abstract: Apparatus for remotely controlling direction and speed of marine engines, including at least two operator controllers located remotely from each other in respective areas of the vessel, electric-hydraulic apparatus operably interposed between the two controllers and responsive to control signals transmitted from and corresponding to the direction and speed setting of one of the controllers for synchronously effecting corresponding setting of the other controller at all times.

Abstract: This invention relates to a pivoted double handle self-locking mechanism for operating a valve. Each of a pair of oppositely extending handles is pivotally mounted on a socket member secured to a key that rotates the valve, each handle being provided with a gear segment that meshes with a corresponding gear segment on the other handle whereby rocking of either handle about its pivot by a lever connected thereto effects rocking of the other handle so that a lug on one handle is moved to a position in which it will not engage a stop carried by the valve body upon subsequent arcuate movement of both handles while in their rocked position in response to a manual pull exerted on the lever connected to either one of the handles.

Abstract: First and second monitoring channel apparatus detect the level of the normal output and load current, respectively, supplied by a principal energy source to a variable load network. Source output varies from normal to low level and load current from low to high level as load network varies between relatively no load and heavy load conditions. The monitor channel detection signals are checked through a logic circuit so that if at least one exceeds a predetermined level indicating the operable condition of the principal source, a registry device is actuated to hold the energy supply leads to the load network connected to the principal source. If neither monitor detects an operable condition of the source, the registry device is operated to activate, and transfer the load energy supply leads to, a standby source.

Abstract: An antiskid brake control system in which an electronic evaluation circuit subject to dynamic behavior signals produced by a wheel sensor associated with one wheel of an axle controls modulator valve device in the brake cylinder fluid pressure conduit to adjust the brake cylinder pressure at the sensed wheel as well as at the non-sensed wheel of the axle independently of an operator controlled brake valve device. There is provided in alternate arrangements of the invention an electrical delay element via which either the supply or exhaust valve comprising the modulator valve device associated with the non-sensed wheel is controlled so that the non-sensed wheel brake pressure development is inhibited relative to the sensed wheel brake pressure to provide better stability of the non-sensed wheel.

Abstract: A combined vehicle antiskid and load-dependent brake control system in which digital control of the individual wheel brake pressure regulating valves is provided. These regulating valves may be operated individually or on a per axle basis to vary the brake pressure independent of the operator-controlled brake valve device. The load-dependent brake control portion of the system includes electronic control circuitry that is subject to the output signal of sensors, which monitor pressure supplied by the brake valve device, actual brake cylinder pressure and the load supported by the vehicle rear axle, in order to operate the regulating valve of at least one wheel brake cylinder such as to cause the wheel brake pressure to follow a predetermined curve that differs from a normal brake pressure buildup curve.

Abstract: This disclosure relates to a railroad-highway crossing gate and signal arrangement having an elongated aluminum gate arm movable between a vertical clear position and a horizontal traffic blocking position. The elongated aluminum gate arm is attached by a breakaway connector to a gate arm bracket which is connected to one end of a pair of gate arm support members. A pair of adjustable counterweights are securely attached to the other end of the gate arm support members. A power operating mechanism including a permanent magnet d.c. motor and a gear train rotatably drives an output shaft which has its respective ends attached to the pair of gate arm support members for moving the aluminum gate arm between its horizontal and vertical positions. The d.c.

Abstract: A wheel anti-skid brake control system for an automotive type vehicle in which diagonally opposed wheels on different axles of the vehicle are provided with a sensor device whose output signals represent different dynamic wheel behavior conditions. An electro-pneumatic modulator valve is operative in a common line via which fluid pressure is delivered to each brake cylinder device of an axle or in a separate line connected directly to each individual brake cylinder device of the axle to influence the brake pressure delivered to each brake cylinder via an operator's control valve device in accordance with the output signals of the sensor device of one wheel of the axle, as monitored by an evaluation circuit to which the modulator valve or valves of the axle are operatively connected.

Abstract: A brake cylinder device for railway vehicles including a built-in automatic slack adjuster and a manually axially positionable piston for resetting the piston and piston rod relative to the slack adjuster when necessary, such as when replacing worn brake shoes, the piston rod being interconnected through a nut and screw, friction clutch, and a key to a manually rotatable member, which, when rotated causes axial displacement of the piston rod and piston to desired adjusted position relative to the slack adjuster.

Abstract: Apparatus disposed in parallel relation to rails of a railway track section ahead or in advance of a railroad car retarder for applying a solid type lubricant to those areas of the car wheels frictionally contacted by the retarder and thereby suppressing excessive noise or squealing during retarding action.

Abstract: All insulation is removed from a preselected length of the center conductor at one end of a short piece of coaxial cable. An adjacent portion of the outer jacket is also removed and the corresponding sheath folded back upon itself. A tubular contactor is crimped over the exposed conductor and preformed at the outer end to plug onto a device terminal to complete an electrical circuit connection. An insulating tube is placed over the contactor and extends beyond its outer end to recess the circuit connection. Over this tube is placed a metallic ferrule which is positioned even with the insulating tube at the outer end and extends to overlap the undisturbed portion of the cable jacket. The ferrule is welded to a ground plate associated with the terminal and also soldered to the folded back sheath to complete an electrical shield for the circuit connection formed by the contactor and terminal.

Abstract: Fluid pressure operable remote control apparatus for a marine vessel equipped with a dual shaft and propeller propulsion system and fluid pressure operable operator controllers for coordinating operation respective valve devices and servo-positioners, whereby the desired operating disposition of the shafts and propellers, relative to each other, is effected for providing the desired speed and directional movement of the vessel.

Abstract: A control circuit for reducing the output cycle of a compressed air system of a rapid transit car during "lay-over" periods, when only a minimum of compressed air for a parking brake, for example, is needed by the car, by activating a secondary governor set for a low pressure operating range and connected in series with a primary governor, one or the other of the governors being activated by the control circuit responsively to control signals denoting the state of compressed air requirement of the car.

Abstract: A solid-state inverter having a programmed unijunction transistor oscillator for converting a d.c. supply voltage into a.c. oscillations which trigger a bistable transistor multivibrator for producing square-wave signals which are applied to a compound-connected transistor amplifier for energizing a load and having an overload protection circuit which disables the compound-connected transistor amplifier and which, in turn, deenergizes the load during the presence of an overload condition.

Abstract: A vehicle leveling valve device for adjusting air spring pressure according to vehicle load and including a hydraulic dampening arrangement wherein one or the other of an air pressure supply or an exhaust valve connected to the air springs is actuated, according to the change in vehicle load, by one of a pair of respective leaf springs when deflected by a cam, in turn, operable responsively to variation in vehicle load and height. Deflection of each leaf spring is resisted by respective hydraulic pistons which are arranged to yield to a normal rate of vehicle load change and therefore permit operation of either the supply or exhaust, but resist any momentary change of vehicle height, such as caused by a jounce, and therefore restrain deflection of the leaf springs and preclude any untimely operation of the valve device.

Abstract: A brake pressure control device for use on vehicles equipped with air springs for proportioning the braking pressure delivered to the brake cylinders at a preselected ratio relative to the vehicle load as reflected by the prevailing air spring pressure, and including adjustable spring and lever mechanism for varying the proportioning ratio of the control device in accordance with the respective varying weights and load capacities of various vehicles, so that the control device may be used on a wide range of vehicles and adjusted to provide the desired pressure ratio.

Abstract: A measuring sensing device for generating a signal corresponding to the relative rotation between two construction parts, with a rotor arranged on the rotating construction part and a stator borne on the fixed construction part, the stator being supported by one or more clamping bodies on the fixed construction part in such a way that on overcoming a considerable frictional adhesion it is slidable with respect to the fixed construction part.

Abstract: An electrically controlled, fluid pressure operated valve device in which an electro-magnet is energized to produce magnetic force in response to which a self-lapping valve assembly is actuated to provide output fluid pressure according to the degree of energization of the electro-magnet. A bias spring is provided to counteract the magnetic force acting on the self-lapping valve assembly in order to withhold actuation thereof until the degree of energization of the electro-magnet exceeds a value above which a linear relationship exists between the electro-magnetic coil current and magnetic force produced.

Abstract: This invention relates to an annular braking disc in which a pair of spaced-apart braking members are connected by a first set of radial fins, each adjacent spaced-apart pair of which is integral with the opposite sides of one of a second set of radial fins, the radial length of which is less than the radial length of the first set of fins. The inner ends of a certain chosen number of fins of both sets of fins are integral one with the other and so arranged and disposed as to provide one of several arcuate segments on each of which is formed an inwardly-extending circumferentially spaced-apart securing lug. The lug that is thus formed integral with each with one of these segments is so disposed inward from each of a pair of braking faces formed on the respective opposite sides of the braking disc as to be out of contact with braking elements that may have braking engagement with these braking faces.

Abstract: A load-weighed voltage corresponding to a pneumatic brake command signal is obtained from a pressure/electric transducer to control the electric brakes of a vehicle also equipped with friction brakes. An electrical feedback signal representing the electric brake effectiveness is compared to the transducer output signal to derive an error signal corresponding to the friction brake requirement necessary to supplement the electric brake sufficiently to satisfy the brake command. An electric-pneumatic transducer converts this error signal to a pneumatic signal which is connected to a first control chamber of a self-lapping type relay valve device whose delivery port is connected to the vehicle brake cylinders. A cut-off valve controls communication of the pneumatic brake command signal with a second control chamber of the relay valve to effect operation of the relay valve only in the event of a malfunction of the electrical circuit components performing the friction brake requirement function.

Abstract: This invention relates to a railway vehicle continual quick service valve device that operates in reoccurring cycles so long as fluid under pressure is being released from a train brake pipe by a brake valve device on the locomotive to, upon each cycle, locally release fluid under pressure from the train brake pipe to atmosphere via this valve device on each vehicle.