Abstract: A system includes a mandrel contoured to define a tapering tubular shape of a workpiece cured on the mandrel and a demolding tool. The demolding tool is configured to remove the workpiece from the mandrel after the workpiece is cured on the mandrel and cut longitudinally. The demolding tool is configured to remove the workpiece from the mandrel by deforming a first end of the workpiece to at least partially disengage the first end of the workpiece from a first end of the mandrel, and subsequently, deforming a second end of the workpiece to at least partially disengage the second end of the workpiece from a second end of the mandrel. The first end of the workpiece may have a first cross-sectional area that is smaller than a second cross-sectional area of the second end of the workpiece.

Abstract: A system includes a mandrel contoured to define a tapering tubular shape of a workpiece cured on the mandrel and a demolding tool. The demolding tool is configured to remove the workpiece from the mandrel after the workpiece is cured on the mandrel and cut longitudinally. The demolding tool is configured to remove the workpiece from the mandrel by deforming a first end of the workpiece to at least partially disengage the first end of the workpiece from a first end of the mandrel, and subsequently, deforming a second end of the workpiece to at least partially disengage the second end of the workpiece from a second end of the mandrel. The first end of the workpiece may have a first cross-sectional area that is smaller than a second cross-sectional area of the second end of the workpiece.

Abstract: A curable siloxane composition, cured material prepared therefrom, manufactured article prepared therewith, methods of making, and uses thereof, are disclosed. The composition comprises a mixture of ingredients (A) and (B): (A) a curable amount of a reactive group-functional siloxane, which has on average per molecule at least one curing-reactive group; and (B) an effective amount of an isocyanate or an isocyanate donor agent. The isocyanate has an average of at least one —N?C?O moiety per molecule thereof. The isocyanate donor agent produces an isocyanate when the isocyanate donor agent is exposed to a triggering condition.

Abstract: A coupling for pipes having an inside wall surface comprises first and second open ends, a bore, a side wall around the bore, and a longitudinal axis. At least the second open end is a male end and has at least one axially oriented protrusion protruding from the second open end for dislodging debris from the inside wall surface of the pipe when inserted therein.

Abstract: A support structure for auxiliary machinery in a seagoing vessel, the support structure comprising a trussed frame supporting a mounting plate at an elevated height above the bottom or deck of the vessel, the mounting plate being adapted to support auxiliary machinery, the trussed frame comprising beams arranged in triangles along the sides and ends of the frame, whereby the frame elevates the machinery and provides ready access to the underside of the machinery.

Abstract: A support structure for auxiliary machinery in a seagoing vessel, the support structure comprising a trussed frame supporting a mounting plate at an elevated height above the bottom or deck of the vessel, the mounting plate being adapted to support auxiliary machinery, the trussed frame comprising beams arranged in triangles along the sides and ends of the frame, whereby the frame elevates the machinery and provides ready access to the underside of the machinery.

Abstract: A method of treating a print screen in order to retard blockage and to make the screen easier to clean comprises treating the print screen with a compound containing a fluorinated radical and a polar radical.

Abstract: A hand held, electronically controlled soldering instrument in which the electronic control module is placed several feet along the power cord away from the tool utilizes the power cord leads to measure the resistance of the heater element during each inflection point of the AC input power. The resistance magnitude is used to provide a signal which is a function of the temperature of the heater element. This signal, in turn, is used to control the electric current to the heater element. This arrangement thermally isolates the heater element and the sensitive electronic control circuit and also removes the heat generating circuitry from the handle of the soldering tool. The handle is further cooled by minimizing the heat flow from the heater element to the handle and by using conductors in the power cord as heat sinks to remove heat from the base end of the heater element shaft.

Abstract: An electronic control circuit for controlling the power applied to an electronic component such as a heater element or an electric winding for a motor. This is effected by measuring variations of the resistance of the component caused by the power flow therethrough. In a preferred form, the circuit has two operational amplifiers, one of which is a voltage comparator and summing amplifier to sum various signals, one being representative of the resistance of the component, the other amplifier operating as a monostable multivibrator. The component, which may be an electric heater for energizing through a switch controlled by the second amplifier. The resistance measurement is effected during the inflection point of the applied AC voltage. The heater is then energized for a full wave of the AC input. During every inflection point the resistance measurement is updated. A modification of the circuit includes a second heater disposed closely adjacent to the object to be heated to serve as an anticipatory circuit.

Abstract: Various electronic circuits are disclosed for controlling the temperature of an object by means of a resistive heating element. Some of the circuits include a digital display for displaying the actual temperature A plurality of different temperature sensors may be used, such, for example, as a resistive sensor, a thermocouple or a thermistor. The sensor may either have a positive or a negative temperature coefficient. Since most of the sensors are not strictly linear, different means are disclosed for compensating for their nonlinearity. Some of the control circuits feature a proportional control to which may be added an anticipatory control. Less sophisticated and more inexpensive circuits simply provide an on-off control.