Abstract:
An elongated workpiece having unfinished side surfaces inclined laterally downwardly and outwardly from a finished top surface is scanned to produce signals denoting location of the longitudinal edges of the top surface at numerous points along them. An elongated scanning zone, extending across the workpiece, is translated all along the workpiece. In synchronism with scanning zone translation the workpiece is alternately illuminated from opposite sides at a low angle of incidence to the top surface to shadow first one side surface, than the other. Scanning lengthwise along the scanning zone is synchronized with translation of that zone and lighting alternation.
Abstract:
A lock nut for a screw seated in a deep, narrow recess has an axially elongated plastic body formed at one end for torque applying engagement by a noncircular driving tool. Opening to its other end is a coaxial hole that is deep enough to receive the entire screw shank. A tapped metal insert is secured in the hole at its outer end. Inwardly of the insert the hole has a portion of smaller transverse dimension than the screw diameter to provide internal surface portions that snugly engage the crests of the screw threads.
Abstract:
A target has pairs of penetrable electrical conductive sheetlike elements that are flatwise opposed and spaced apart a distance to be transiently electrically connected by a penetrating projectile. Each pair corresponds to an annular scoring zone. Elements for radially outer scoring zones are on a permanent front sheet-like structure; those for inner ones are on a readily replaceable sheet-like structure installed behind the front one. To accommodate possible misalignment of the sheet-like structures the radially innermost elements on the front structure partially radially overlap the radially outermost ones on the rear one. Such overlapping elements cooperate for one scoring zone, and corresponding ones of them on the two structures are electrically interconnected.
Abstract:
A soundproofing installation system for vehicle power units, particularly in buses with rearmounted power units, where the engine is located in a closed chamber, the chamber being in the form of a double-wall box and comprising an integral part of the vehicle structure. At least some of the confining walls of the chamber are provided with soundproofing material, and the chamber accomodates power transmission means connected to the engine, and is provided with sealed lead-throughs for systems located externally of the chamber and connected to or forming part of the power unit. The radiator system is divided into two systems, each with a separately driven fan, and is located outside the chamber.
Abstract:
The stick of a joystick type control device is rigidly affixed to a carrier plate that extends normal to it. The plate is gimbal mounted on a fixed base and has four reaction receiving elements equidistant from the stick axis, arranged two along each gimbal axis, at opposite sides of the stick. Four springs react, all in the same direction, between the fixed base and the plate, one against each reaction receiving element. When the stick is in a normal position the springs exert equal forces.
Abstract:
For lengthwise transit of a film strip from one frame at a fixed station, to bring any other selected frame thereto, a counter is charged with the initial number of frames that must pass the station. A pulse is produced as each frame passes the station, to count down the counter. The pulses are also integrated to produce a true strip speed signal. With the use of the charge on the counter, a demand value signal is produced, corresponding to a constant fast velocity for all frames that must pass the station in excess of a predetermined number, and therebelow, to a decreasing velocity proportional to number of frames still to pass. The strip drive is energized according to the difference between true and demand values, in a manner tending to maintain that difference at zero.
Abstract:
AN ENDWISE SLIDABLE ROD, SUCH AS A BRAKE ROD, IS RELEASABLY LOCKED AGAINST SLIDING IN ONE DIRECTION BY A DISC-LIKE ANNULAR CATCH COAXIALLY SURROUNDING THE ROD AND HAVING ITS PERIPHERY ENGAGING AN ANNULAR SEAT THAT HOLDS THE CATCH AGAINST BODILY AXIAL DISPLACEMENT. THE CATCH IS FRUSTOCONICAL, CONVERGING IN THE OPPOSITE DIRECTION AND HAS SLITS RADIAL ITS CENTRAL APERTURE, DEFINING SPRING SEGMENTS THAT FRICTIONALLY ENGAGE THE ROD. A SLEEVE AROUND THE ROD, HYDRAULICALLY ACTUATABLE IN SAID OPPOSITE DIRECTION, DISENGAGES THE SPRING SEGMENTS FROM THE ROD TO RELEASE THE ROD FOR MOVEMENT IN SAID ONE DIRECTION.
Abstract:
In a motor car or other wheeled vehicle provided with electronically controlled wheel brakes, the lag or slip of the individual wheels is determined to render possible a control such that locking and skidding of the wheels is prevented. During braking, the brake of one wheel of the vehicle is intermittently released so that the wheel is intermittently free-running without slip. The speed of the vehicle is continuously measured by an accelerometer of simple type and an integrator integrating the accelerometer output. The true speed of the vehicle is intermittently measured by a speed transducer associated with said wheel and having an output representative of true speed during the free-running interval of the wheel. The approximate continuous speed value is recurrently updated by the intermittent true speed signal so that the integrator output is proportional to the ratio of the speed of the vehicle to that of the wheel and is a quantity to control the brake of the wheel in dependence of the slip of the wheel by comparison with a permissible or tolerable slip limit value.
Abstract:
The energy-absorbing device comprises telescoped inner and outer members between which hard balls are confined. Its inner member is a tube with a circumferentially undulating wall that defines circumferentially alternating inwardly and outwardly opening bays and is therefore radially elastically deformable. Balls are received at longitudinally spaced intervals in the radially outwardly opening bays. The outer member has a spherical inwardly opening socket for each ball to hold the ball against displacement relative to the outer member. When either member moves lengthwise relative to the other, the balls locally elastically deform the inner member, thus dissipating energy.
Abstract:
AN ARRANGEMENT FOR OBTAINING AN ABSOLUTE SEAL BETWEEN AN AXLE OR AXLE UNIT AND AN INNER CYLINDRICAL SURFACE IN A BORE DISPOSED IN A BEARING HOUSING OR THE LIKE COAXIAL WITH THE AXLE, THE AXLE OR THE LIKE AND THE CYLINDRICAL SURFACE BEING PERMITTED TO PERFORM A LIMITED RELATIVE ANGULAR OSCILLATING MOVEMENT. A RESILIENT SEAL RING MADE OF RUBBER OR SIMILAR MATERIAL WHICH HAS A LOW MODULUS OF ELASTICITY IS SO SECURED UNDER SUBJECTION TO RADIAL COMPRESSION FORCES BETWEEN SAID MEMBERS THAT SAID RING AS A RESULT OF ITS PRETENSIONED STATE IS HELD IN ROTATIONALLY STATIONARY ABUTMENT WITH RESPECTIVE ABUTMENT SURFACES IN BEARING HOUSING AND ON THE AXLE UNIT. THE SAEL RING, UPON A PREDETERMINED LIMITED RELATIVE ANGULAR MOVEMENT OF EITHER MEMBER, WILL THEN COMPLETELY TAKE UP SAID ANGULAR MOVEMENT WITH A STRETCH.