Abstract: A method for generating a shape on the periphery of a non-rotating workpiece by orbiting a rotating hob in cutting engagement with the workpiece while moving the hob and workpiece relatively lengthwise of the workpiece.

Abstract: A lockout control system locks out the lag load upon occurrence of a predetermined condition in a dual load system set up in a lead-lag configuration. The lockout control system utilizes a lead-lag memory circuit for insuring that only the lag load is locked out when the lockout condition exists irrespective of which load is lead and which load is lag.

Abstract: A method and apparatus for generating a shape on the periphery of a non-rotating workpiece by orbiting a rotating cutter in cutting engagement with the workpiece. Either the cutter or the workpiece is moved linearly in the lengthwise direction of the workpiece.

Abstract: A creeling tail is formed on the large end of a conical package core by tilting the core so that only an end portion at the large end of the core is in contact with a rotating frictional drive and then winding the strand in a narrow band proximate the large end of the core. A package support apparatus is provided to support the conical package core for rotation about its axis and employs means to selectively tilt the core so that only the large end portion of the core is in contact with the frictional drive roll during formation of a creeling tail.

Abstract: A position detector providing an electrical position feedback signal proportional to relative mechanical movement between two elements employs a hall effect device to sense changes in magnetic flux density resulting from relative movement of the hall effect device with respect to an adjacent magnetic field, the hall effect device producing an electrical signal proportional to magnetic flux density which signal comprises the electrical position feedback signal. The hall effect device and magnet are supported in respective relatively movable members in cooperative relationship such that the magnet is adjacent the hall effect device so as to permit relative movement of the hall effect device with respect to the magnetic field, the members being preferably adapted for mounting respectively on two relatively movable mechanical elements.

Abstract: A volume air flow controller having a butterfly damper mounted within an air duct and movable between open and closed positions employs a baffle, located upstream from the damper, as an air flow impedance to change the flow conditions upstream from the damper so as to reduce the normal damper closing torque resulting from aerodynamic forces produced by air flow past the damper.

Abstract: An air induction unit having a first induction means to induce secondary air through a first induction opening into a stream of primary air to produce an air stream of mixed primary and secondary air, and a second induction means to induce additional secondary air into the mixed air stream through a second induction opening.

Abstract: A controller for at least one damper maintains a constant volume rate of flow of air through a duct into a controlled space for a given condition in the controlled space. The dual reset controller resets the volume rate of flow as functions of two sensed conditions.

Abstract: A tramming fixture and method for accurately tramming in, or positioning, a dressing wheel with respect to a dressing axis of a dressing machine so that all points on the surface of the dressing wheel which contact the workpiece during dressing are equi-distant from such dressing machine axis. In accordance with this invention, the tramming fixture provides a mechanism for obtaining a measurement representative of the distance between a reference line and the point of dressing contact on the peripheral surface of the dressing wheel. By tilting or rotating the dressing wheel about the dressing axis through predetermined angles, taking corresponding distance measurements, and comparing the measurements, a determination can be made of the appropriate position adjustment required to properly locate the dressing wheel.

Abstract: A method and apparatus for accurately producing relieved cutting tools and other relieved shapes by electrical erosion, whereby the workpiece is maintained in a horizontal position and a wire electrode is tilted at the desired relief angle from vertical after which they are moved relative to each other in a manner such that the spacing between them in a horizontal plane is compensated for the elliptical cross-section of the working gap in the horizontal plane.

Abstract: A heat pipe heat exchanger has a plurality of heat pipes which are interconnected so as to permit fluid communication between the pipes at least during charging so that the heat pipes may be simultaneously filled with heat transfer fluid.

Abstract: Apparatus for detecting absence or misalignment of heddles at the drawing-in position on a warp drawing machine by photoelectric means. The detection of such a condition is employed to stop the operation of the warp drawing machine until the condition is corrected.

Abstract: A cutter blade for use in cutting metal is formed with a recess spaced behind the cutting edge on the cutting face to save expensive cutting material, to reduce the time and energy required to sharpen the cutter blade, and to lengthen the life of the sharpening tool. High density sintered powdered tool steel lends itself well to this construction, as do cast and forged tool steels.

Abstract: A heddle for a weaving machine for making triaxial fabrics has a nose portion with a rounded free end of substantially the same thickness as a major portion of the heddle. The nose postion is also provided with a warp strand guide opening therethrough and reduced thickness portions between the opening and the edges of the nose portion to minimize warp strand abrasion during weaving.

Abstract: A tramming fixture and method for accurately tramming in, or positioning, a dressing wheel with respect to a dressing axis of a dressing machine so that all points on the surface of the dressing wheel which contact the workpiece during dressing are equi-distant from such dressing machine axis. In accordance with this invention, the tramming fixture provides a mechanism for obtaining a measurement representative of the distance between a reference line and the point of dressing contact on the peripheral surface of the dressing wheel. By tilting or rotating the dressing wheel about the dressing axis through predetermined angles, taking corresponding distance measurements, and comparing the measurements, a determination can be made of the appropriate position adjustment required to properly locate the dressing wheel.

Abstract: A reed opener assembly for spreading the dents of a reed to permit entry of a needle therebetween during a warp drawing operation has a reed opener blade, a reed opener body and means to retain the reed opener blade and reed opener body in cooperative relationship such that the blade and body combine to form a cam surface for successively engaging and spreading adjacent dents of a reed.

Abstract: Upon sensing an excessive temperature in a plenum supplying secondary air to a mixing box, a thermostatic element opens a valve to exhaust air from a pneumatic actuator for opening a normally closed secondary air damper. This action permits the damper to close and so prevent flow of secondary air from the plenum into the mixing box. The control may be tested by applying auxiliary heat to the thermostatic element. The control may be made to prevent spread of smoke by making the application of heat to the thermostatic element responsive to a smoke detector.

Abstract: A heat pipe heat exchanger has a plurality of heat pipes which are interconnected so as to permit fluid communication between the pipes at least during charging so that the heat pipes may be simultaneously filled with heat transfer fluid.

Abstract: A device for automatically lifting a yarn package off of a package drive roll in response to a detected condition has a vertical member depending from a package support and extending through an opening in a lever assembly. The lever assembly is selectively raised by operating means in response to a detected condition and engages the vertical member at the opening by means of the frictional force resulting from a binding action caused by rotation of a portion of the lever assembly with respect to the vertical member. In addition, the lever assembly is biased such that it is disengaged from the vertical member when the downward pressure exerted by the package and package support is relaxed.

Abstract: A signal monitoring device useful to monitor power consumption level employs a phase locked loop and an associated frequency reduction circuit to convert relatively low frequency input pulse signals to an output signal representative of power consumption.