Abstract: An apparatus for saving boiler feed water heat having a closed condensed water vessel for collecting the steam water condensate from one or more reactor steam jacket, and the steam condensate flash over when it enters the closed vessel due to pressure drop. The closed vessel having a boiler feed water pump located below the vessel and the vessel located below the reactor steam jacket, and cold water injection into the condensate prior to entering the feed water pump. The feed pump then taking the cooled condensed water to the boiler reducing the demand for boiler make up water and saving heat and energy.

Abstract: A multiple electric motor hydraulic oil pump power system including a programmable controller having electric motor starting and stopping circuitry for hydraulic oil flow control. The circuitry having means to compare each electric motor running hours and select the motor with the least running hours to adjust oil flow to the desired amount. The system monitors oil pressure and flow, comparing such pressure and flow with the desired value and automatically adjusting the system to accomplish the correction. The controller also maintains safety sensing devices for high and low oil reservoir levels, oil filter condition limits, oil temperature limits, and means to maintain a constant oil pressure under load with load flow rates varying from very low to very high.

Abstract: A rural mailbox hooded retractable tray insert molded from a plastic material having flexural ability. The mailbox hooded tray insert having a finger grip for in and out movement of the tray and a slider groove along the hood length that guides and limits the in and out movement. The tray insert hood prevents mail from falling out during tray movement and contains storage space for bee and insect repellant. The tray insert back wall has a vertical member having a flexible hinge for moving the tray insert partially out of the mailbox to expose the finger grip when the mailbox is opened.

Abstract: A process for injection molding of thermoplastic materials which includes a nozzle body having a bore to provide a flow path for molten thermoplastic. One end of the nozzle body is adapted for connection with a sprue of an associated mold body, and the other is adapted for connection with an end of an associated injection molding machine. The nozzle body has a shut-off valve fluid pin housing adapted for reciprocating movement in the nozzle bore to control the flow of plastic through the nozzle body. The shut-off valve fluid pin housing also includes a body having a fluid pin with a tip portion and a fluid passage formed in the body and open at the tip portion and the other end of the fluid passage communicating with a source of two pressurized fluids, one in vapor and liquid phase and another in gas.

Abstract: A process for injection molding of thermoplastic materials which includes a nozzle body having a bore to provide a flow path for molten thermoplastic. One end of the nozzle body is adapted for connection with a sprue of an associated mold body, and the other is adapted for connection with an end of an associated injection molding machine. The nozzle body has a shut-off valve fluid pin housing adapted for reciprocating movement in the nozzle bore to control the flow of plastic through the nozzle body. The shut-off valve fluid pin housing also includes a body having an adjustable fluid pin with a tip portion and a fluid passage formed in the body and open at the tip portion and the other end of the fluid passage communicating with a source of two pressurized fluids, one in vapor and liquid phase and another in gas.

Abstract: A nozzle for injection molding of thermoplastic viscous fluid materials which includes a nozzle body having a bore to provide a flow path. One end of the nozzle body is adapted for viscous fluid connection with a sprue of an associated mold body, and the other end is adapted for viscous fluid connection with an end of an associated injection molding machine. The nozzle body includes within its bore, a shut-off valve non-viscous fluid pin housing assembly which is adapted for reciprocating movement in the nozzle body. The fluid pin housing has a tip portion and a non-viscous fluid passage formed in the housing and open at the tip portion and the other end of the non-viscous fluid passage communicating with an associated source of pressurized non-viscous fluid. An actuator is provided for reciprocating within the nozzle body of the shut-off valve fluid pin housing to an open or closed position controlling the flow of viscous plastic through the nozzle body.

Abstract: The invention relates to a rotary index table comprising a stationary table housing, a table plate which is designed for reception of the workpiece and rotation by a drive means mounted on said table housing, a total of three Hirth-type serrations arranged concentrically with respect to one another, namely a first on said table housing, a second on said table plate, preferably in the same plane as said first Hirth-type serration, and adjacent said first two Hirth-type serrations a third Hirth-type serration that is substantially non-rotatable, but is designed for axial adjustment and simultaneous engagement with and disengagement from said first two Hirth-type serrations so as to lock and unlock the latter, said table plate being rotatable by said drive means when the first and the second Hirth-type serrations are in the disengaged state and securable at least in angular positions determined by the pitch of the Hirth-type serrations by a brake means.

Abstract: A cone drive, high output speed reducer, having a low clearance for low profile applications. An input shaft drives a helical idler pinion which in turn drives two other helical idler pinions. The two other idler pinions are each mounted on a separate shaft carrying a cone drive worm. The two worm shafts turn in unison, and the worms are each meshed with a separate worm gear. The two worm gears are operatively mounted on an output shaft. One of the helical idler pinions is provided with an adjustment means for equalizing the load sharing. That is, to provide equal loads on each of the helical pinions for load sharing throughout the twin drive gearing units of the speed reducer. The speed reducer may be provided with either an air cooling system or a water cooling system.

Abstract: A work holder adapted to minimize clamp distortion of a workpiece by providing a movable metallic collet encompassing the workpiece, and a plurality of front and rear jaws to grip the metallic collet with different pressure forces at the front and rear sections of the collet.

Abstract: This invention substantially improves the surface finish on resin filled foamed molded plastic products manufactured by injection molding by pre-heating the skin surface of that part of the mold in contact with the part prior to the injection cycle of the machine and then subsequently chilling the mold via internal tube connections to shorten the time needed in the manufacturing cycle for solidifying the part sufficiently for release from the mold.

Abstract: Apparatus for sensing and measuring the torque output of a rotary device such as a gear reduction box by inserting an especially machined or configured adaptor between the shaft bearing and the bearing mounting housing. This adaptor transducer will have strain gages mounted on it in spaced relationship so that the tangential force from the gears reacting on a shaft will produce a deflection in the adaptor transducer which will be detected by the strain gages. The strain gage signal then will be sensed, amplified and can be recorded on an analog read out type meter or monitored continuously on a pen-type recorder or other conventional instruments. The strain gages can be calibrated so the output of the recorder will convert the signal into a direct reading of the torque output transmitted through the gear reduction box.

Abstract: A roll-through cold forming apparatus adapted to form simultaneously a plurality of either external or internal straight spline or gear type teeth on a cylindrical workpiece carried on a movable ram. In one embodiment the apparatus includes a plurality of radially disposed pivotally mounted teeth forming blades which are disposed around the axis of movement of a linearly movable ram, whereby when the ram moves in one direction past the teeth forming blades, the blades are engaged by an interference contact with the workpiece carried on the ram, and the teeth forming blades are moved over the external surface of the workpiece in a rolling contact action so as to displace the material of the workpiece between each tooth forming edge of each of the blades. The material on the external surface of the workpiece is formed around the radius of each of the tooth forming edges of each of the forming blades on a line with the configuration of each tooth forming edge.

Abstract: A method for assembling sheet metal pipes, and a machine for carrying out the method which comprises assembling a pipe from a preformed pipe blank into a finished pipe without permanently deforming the pipe blank material. The method comprises the steps of folding of a preformed pipe blank, having a male lock joint member along one longitudinal edge and a female lock joint member along the other longitudinal edge so as to move the longitudinal edges toward each other, and then inserting the male lock joint member into the female lock joint member, with the spring tension created in the pipe blank due to the folding action effecting a locking action between the two lock joint members.

Abstract: A machining center type machine tool which is a four-axis, horizontal spindle machining center with a carousel-type automatic tool changer and which is adapted to be controlled by a computer numerical control system. The machining center can perform a variety of machining operations, such as milling, contouring, drilling, tapping and boring, in both roughing and finishing applications. A rotary work table is operatively carried on two movable, perpendicularly disposed slide members to provide movement of the work table along both "X" and "Z" axes. A horizontal tool spindle slide assembly is slidably mounted on a "Y" axis on a twin column assembly. A rotary, carousel-type combination tool storage and tool changer, holding twenty-four tools, is rotatably mounted on a horizontal axis that is aligned and parallel with the axis of the horizontal tool spindle. The rotary carousel functions to automatically load and unload tools directly into the tool spindle at a tool exchange location.

Abstract: An electronic control system for controlling a sequence of operations on products moving on an indexing conveyor. The electronic control system is illustrated as controlling a sequence of operations, carried out at various work stations, on cartons in a packaging machine, such as filling operations, sealing operations, and clean-in-place operations on carton filler heads. A limit switch carton detector detects the presence or absence of cartons on the indexing conveyor of the packaging machine and feeds such carton information into a first shift register, which in turn feeds the carton position information into a first "and" gate. A limit switch machine timing indicator functions to feed a first machine timing signal into said first shift register, and into a machine cycle counter. An output signal from the machine cycle counter is fed into a sequence selector which products a sequence signal that is fed to said first "and" gate, which in turn produces a filler sequence signal.

Abstract: A method for the manufacture by foam molding of plastic products by first injecting into a mold non-cellular plastic resin and then injecting a foamed plastic resin of the same basic composition as the non-cellular plastic resin. The process and apparatus consisting of a single extruder and single injection chamber wherein the non-cellular and foamed plastic resin are extruded from the same extruder and stored in an accumulator until shot into the mold by a hydraulic cylinder. Controls are provided for the correct amount of each type of resin to be extruded and stored and the process can be adapted so that the sprue portion of the final product will be solid resin. By a simple addition, coloring of the resin may be accomplished so that the basic resin, method or apparatus will not require changes.

Abstract: A distortion free workpiece clamping means for clamping a workpiece on a pallet for use in a transfer machine. An elongated support bar is operatively attached to the pallet, and an elongated clamp bar is operatively attached to the support bar by a clamp screw means. The clamp bar has a clamp nose on one end thereof for clamping engagement with a workpiece on the pallet, and the other end of the clamp bar is supported by fulcrum means carried by the support bar.