Abstract: A device that contains a pocket wherein checklist cards can be inserted that match with pushbuttons that are used to indicate completion of certain steps in a series of steps.

Abstract: Liquid level measuring capacitors, each having two vertically disposed generally polygonal plates, are made by preparing a provisional assembly including a first electrode plate having plural holes and a baffleplate shape. A second electrode plate opposite to the first electrode has plural holes corresponding to the first electrode plate holes. A one-piece dielectric spacer network inserted between the plates includes plural annular spacers arranged correspondingly to the holes of the plates. The spacer has zigzag connecting bars to breakably connect a number of the spacers to one another by relatively weak joints with a generally arc-like part of the outer periphery of each spacer. A fastener is inserted in the center hole of each spacer through aligned holes of plates. Each fastener is fixed to the plates. The end portions of the connecting bars are pulled to break and separate spacers.

Abstract: The invention is directed to means adapted for connection to a gaseous fluid container for visually signalling a reduction of pressure in the container, for example a vehicle tire, to indicate a decline or diminution of fluid in the container. This signal alerts and enables an observer to initiate steps for restoring the desired pressure when the pressure of the gaseous fluid in the container is diminished for any reason below a predetermined minimum desired pressure.

Abstract: An elongated container, open at end, is nearly filled with frozen fluid. Urethane foam insulation around the container admits access only to the open end of the container with the frozen fluid level below the insulation. An elongated heat conducting indicator member fits loosely within the container so that fluid may pass therebetween. An elastic band over the end of the indicator/conductor and around the base of the insulation maintains an end of the indicator/conductor in contact with the frozen fluid. The indicator/conductor is calibrated in degree-hours or other temperature-time units. The indicator/conductor may be a hollow flat-bottomed tube with air inside acting as the heat conductor from the exterior air to the contact end of the block of frozen fluid.

Abstract: At an extremity of the pointer board of a push-button tuner is fixed a member on which a pointer is mounted. At a surface of the member on which the pointer is mounted. There is disposed a lateral fitting groove having an opening at the front surface. The fitting groove is provided with indentations. The pointer has a fitting portion engaging with the fitting groove on its back surface and the fitting portion has protrusion engaging with one of the indentations.

Abstract: A Mach airspeed indicator instrument has a pointer that is rotatable around an airspeed scale and a Mach scale, the Mach scale itself being rotated in response to altitude change. A marker can be rotated around the scales via a cam that is manually rotated by an external knob. Rotation of the Mach scale is coupled via two vertical links and a lateral arm to rotate a gear ring which carries a peg. When the gear ring reaches a certain position the peg contacts and displaces a similar peg which rotates the marker with the Mach scale. The Mach value at which this occurs is adjusted manually from outside the instrument by a knob. Twisting the knob causes a vertical displacement of a mounting bracket on which the lateral arm is pivotted. The lateral arm is fixed at the end coupled with the Mach scale so that it rotates about that end causing rotation of the gear ring without affecting the Mach scale.

Abstract: An abrasion testing machine has a vibrating horizontal platform which supports a six pack of test specimens, such as beverage cans. Hydraulic cylinder controlled pressure plates are applied to the sides of the array of test specimens and to the top of the array as the specimens are vibrated. The amount of pressure is controllable by a control cylinder for each of the pressure cylinders and the speed and magnitude of vibration is adjustable by controlling motor speed and the position of an adjustable linkage between the motor and the platform.

Abstract: Apparatus for use in conducting both static and dynamic thermomechanical analysis includes a load member, one end of which is supported by the sample located in a sample receptacle, eventually in a selected gas atmosphere, in heat equilibrium and the other end of which is loaded statically by a weight or dynamically by the armature of an electromagnet.

Abstract: There is disclosed a tamper-indicating seal that permits in the field inspection and detection of tampering. Said seal comprises a shrinkable tube having a visible pattern of markings which is shrunk over the item to be sealed, and a second transparent tube, having a second visible marking pattern, which is shrunk over the item and the first tube. The relationship between the first and second set of markings produces a pattern so that the seal may not be removed without detection.

Abstract: A camera contains a row of diodes sensitive to infrared radiation and mounted on a turntable for rotation about the optical axis of the camera. The signals from the diodes provide a temperature profile of a band across the width of a strip of hot rolled steel moving in a direction orthogonal to the optical axis and to the length of the row of diodes. Since the diodes are low accuracy devices, their measurements are compensated by normalizing co-efficients derived by comparison with the signal provided by an optical pyrometer viewing the central part of the steel strip in the region of the optical axis. To enable all diodes to be calibrated, calibration is effected with the turntable rotated 90.degree. to align all the diodes with the central part of the strip as viewed by the pyrometer. The camera may be mounted on one arm of a C-frame having X-ray tubes in an arm and X-ray detectors in the other arm for the purpose of measuring the thickness profile of the strip in known way.

Abstract: A snow scale/rate meter having a highly accurate weight sensing device enclosed in a thermally controlled environment. A clear plastic collection bucket is operably connected by means of an elongated shaft to the weight sensing device. In addition, a plurality of wind protection device surround the collection bucket as well as limit collected snowfall to snowfall having trajectories of 45.degree. or less from the vertical. Snowfall weight and rate data can be accurately provided by this meter over extremely short intervals of times during in-the-field operation.

Abstract: The horn comprises a body portion, a detachable and hence replaceable end portion, and a securing member securing the end portion to the body portion. The securing member has a first threaded portion received in a tapped hole in the body portion and a second threaded portion received in a tapped hole in the end portion. By rotation of the first threaded portion in its tapped hole, the orientation of the end portion, when it is in tight contact with the body portion, can be corrected. A method of detachably securing an end portion to a body portion of a horn is also claimed.

Abstract: The control arrangement enables, with the aid of a start-up control device which is connected with an oscillation or vibration pickup or transducer which is affixed to the generating cylinder of the machine, running-up of the measuring drive at an optimum acceleration to the final or end measuring velocity, so that already at the start of the measuring operation there are obtained valid measurement results, in other words measurment results which are not impaired by the natural oscillations or vibrations of the machine, without there having to be relinquished at the machine the advantageous presence of a lever system and generating straight edge, and thus, the positive motion transmission between the slide system and the test gear. The optimum acceleration, i.e.

Abstract: This invention relates to a wind direction indicator spherically rotatable about a liquid supported poly axial magnetic compass. The wind direction indicator determines the wind direction without any pivotal support. The wind direction structure is orientated to the reference center of the compass by means of the transparency of the spherically rotating structure. The displacement of the wind direction indicator base upon the wind responsive rudder and wing structure thereon causes the device to give an accurate direction of the wind that may be used during sailboat racing. The spherically rotatable structure or wind direction indicator is independently movable regardless of the mounting of the device on the sailboat or any other support structure. The frictional contact between the boat support structure and the device is minimized because there is no surface to surface contact between the moving elements.

Abstract: A pneumatically powered oxygen pressure loss alarm system for use in conjunction with a gas anesthesia machine having an oxygen supply circuit and a gas mixing circuit. The oxygen pressure loss alarm system comprises a volume chamber in which a pressurized volume of oxygen is maintained, an oxygen escape valve for venting the chamber when pressure within the oxygen supply circuit falls below a critical minimum level, and an audible alarm operable in response to the flow of oxygen vented from the chamber through the oxygen escape valve. In addition, a reverse flow of residual gas from the gas mixing circuit, through a master valve also used to shut off the gas anesthesia machine, is coupled to the alarm to provide an audible indication of machine shut-down.

Abstract: Overlapping connections of sheet metal members in structural components are ested for cracks or flaws which are primarily the result of wear and tear under operating load conditions. For this purpose a test hole is made into or through the overlapping sheet metal members whereby each sheet metal member is provided with its own test hole portion. As long as the connection is still in good condition, adjacent test hole portions remain in register with each other. A sensor is inserted into the test hole. The sensor provides an indication of a faulty connection when the test hole portions are no longer in register. Several different types of sensors may be employed. The monitoring of the test holes and/or sensors may be made in a manual or automatic manner.

Abstract: A tire deflation warning device having an arm carried by the rotating wheel and normally held retracted by a plunger activated by tire air pressure. Upon deflation the plunger releases the arm to be moved radially outwardly by centrifugal force so as to contact an element on the vehicle body and sound an alarm.

Abstract: A door brace alarm apparatus for resisting movement of a door and for providing a sound alarm when such movement of the door is attempted. Two slideably connected shaft members are adjustable for angular placement between the door knob and the floor. A bifurcated yoke and a floor support retain the door brace alarm in position by contact with the door knob and floor. A pivotally mounted alarm housing connected to one of the shaft members houses an alarm retainer which provides for extension adjustment by threaded cooperation with a cavity in the alarm housing. The alarm retainer houses the sound generator and adjusts to position the sound generator in juxtaposition with the door so that it will emit an alarm sound upon impact by the door.

Abstract: Apparatus is disclosed for controlling a pair of transverse scanning gauges disposed along the length of a moving sheet of material whereby continuous same-spot measurements of the material may be made irrespective of any variations in the speed of the material even as it traverses the distance between the scanning gauges.

Abstract: A flexible stick tank gauge is made of a thin metal or plastic tape. The tape is sufficiently thick to be self-supporting when held vertically from the lower end. Alternatively, the tape is curved to be a narrow sector of a cylinder. Measuring indicia are applied to at least one surface of the tape. The tape remains flexible at extreme environments of temperatures and will not break in normal use such as airline fuel measuring operations.