Abstract: In general, this invention relates to a flexible, hinged post or barrier provided with a curved fixed or spring surface serving as the point of contact between the flexible post and vehicle entering a parking space; a hinged support rod used to anchor a return spring between the post to return the post to a vertical position. The rod also incorporates a bolt slot for a locking mechanism consisting of a single lock with dual functional bolt which can lock the flexible post in an upright position and lock the entire apparatus through its foot onto a base plate by the rod penetrating through holes aligned between the foot and base plate. The base plate is secured to the roadway by spikes, anchor bolts, glues or cements.

Abstract: A tilt latch for a sliding window sash comprising a unitary molded plastic article including a base portion mountable on the top of a window sash, a body portion having a projecting nose for insertion in a channel of a window frame, and a narrow thin portion hingedly connecting the body to the base for enabling movement of the body between a closed position overlying the base and an open position. Two such latches are respectively mounted on opposite sides of a window sash; when the latch bodies are in the closed position, their noses are respectively received in vertical channels of the window frame for retaining the sash in the frame, while movement of the latch bodies to open position permits the sash to be tilted out of the frame. Each latch is provided with a manually releasable lock, such as a pin projecting from the base and received with interference fit in an opening of the body, for retaining the body in the closed position.

Abstract: This invention is a method and an apparatus by which a barrier is automatically placed before partially opened doors, which barrier is automatically removed when the door is fully opened and safe for travel. The invention includes means to detect when the door is fully opened and thereupon to activate barrier removal means, together with barrier placement means automatically activated at any time when the door is not fully opened.

Abstract: A grinding apparatus for forming and grinding complex curved surfaces such as the peritrochordal bore of rotary a combustion engine, e.g.

Abstract: Method and apparatus for belt sanding of lumber to finish and dimension lumber as rough sawn lumber is moved in single file through the mill. The lumber is moved at an angle of between about 5 to 15 degrees to the axis of the contact drum of a wide belt planer. This angular relationship of the lumber beneath the belt permits the high speed planing without overstressing the abrasive belt.

Abstract: A method and apparatus for cleaning abrasive belts of the type used in belt sanding operations. The apparatus includes a module having a frame composed of abradable side wall members. A block of cleaning material of natural or synthetic rubber is contained within the frame and engages the belt surface. The module is supported on a resilient base which is slightly compressible as the module passes through the belt sander to exert a uniform continuous biasing force on the belt surface to be cleaned as the module and belt are moved relative to one another.

Abstract: A partitioning system for segmenting an open area into smaller compartment-like regions includes a grouping of multifunction, interchangeable standardized component parts which are selectively utilized according to the partitioning panel designs to be assembled and the particular configuration desired. The partitioning system includes structural wall panels of a unitized, laminated gypsum sheet construction, window panels, acoustical screens, and door members. Angled joints between adjacent panels include a corner spacer which has a series of radially spaced slots for receipt of face plate members with resultant included angles of either 90.degree., 135.degree. or 180.degree. and the face plate members are configured for snap-fit with variously styled partitioning panel connectors.

Abstract: For use with horizontal siding panels each having complementary first and second locking means respectively formed along their top and bottom margins for interlocking vertically adjacent courses of panels in overlapping array, a system and method for mounting, on a wall, a panel interposed between already-mounted upper and lower courses which are vertically spaced by a distance less than the height of the interposed panel. The system includes clip means for securing the second locking means of the upper-course panels to the wall while permitting upward insertion of the first locking means of the interposed panel, behind the upper-course panels, to a level above that at which the second locking means of the upper-course panels would interlock therewith, and retaining means for securing the first locking means of the interposed panel to the wall at that level.

Abstract: A space divider assembly for an enclosure having a floor and a ceiling. The space divider assembly consists of a plurality of upright, free-standing, floor-supported panels arranged end to end and a plurality of border members secured to each other and to said panels so as to project upwardly from the panels and form a border at the upper ends of the panels. The border members are shaped at their upper ends to form a container for sound absorbing material which substantially fills the container and provides for sound separation of the areas of the enclosure on opposite sides of the panels.

Abstract: A tie-down runner to increase resistance to shear and racking forces in mobile home wall constructions is disclosed. Said tie-down runner having a generally J-shape and suitable for use at upper and lower ends of wall studding to increase resistance to said forces and to additionally provide increased attachment surfaces for interior wall panel members. A method for increasing resistance to shear and racking forces is also provided.

Abstract: A sealant strip is provided having a soft, resilient synthetic foamed resin core, preferably having a pressure sensitive adhesive coating on at least one of two of the opposed sides of the core and thin preferably silicone rubber sealing layers cured in situ on the two remaining surfaces of the core. The strip is adapted for adhesive attachment to and compression between structural members, with the core supporting the edges of the sealing layers in contact with the opposed surfaces of the structural elements between which the strip has been compressed.

Abstract: A system wall or system ceiling comprising a number of supporting girders suspended from the structure of the building and to which slabs are mounted substantially extending perpendicular to the girders, the girders being provided with outwardly or downwardly protruding clamping feet engaging into one or more slits, cut into the upper or back side of the slabs.

Abstract: A structural composite panel comprises a pair of filament-reinforced composite facing sheets and a ruffled, corrugated core secured between the facing sheets. The core has corrugations each with an axis having periodic oscillations in plane of the core and with the axis generally normal to filament direction.

Abstract: A method and apparatus is disclosed in which a plurality of envelopes are arranged and aligned in face-to-face relationship to form at least one batch of envelopes with at least a first edge of each envelope in the batch disposed substantially in a common plane and with a second edge of each envelope normal to the first edge and disposed substantially in a common plane. The first edges of the envelope are sprayed with a liquid envelope material degrading agent that functions more effectively when heated. The spraying is effected in a substantially planar fan spray pattern that is substantially parallel to the plane of the envelopes. The spray is moved along the batch in a direction normal to the planes of the envelopes to apply the agent to the first edges. The second edges of the envelopes are also sprayed with the liquid agent with a substantially planar fan spray pattern oriented substantially transversely to the planes of the envelopes.

Abstract: In applying to an externally threaded bottle neck an unthreaded metal closure having a gasket within it, the closure shell is pressed down on the bottle and while the shell is so held the diameter of the upper end of the skirt is reduced at angularly spaced intervals to press the gasket into sealing engagement with a cylindrical sealing surface on the neck of the bottle above the bottle thread and simultaneously to form a band of knurling which can be grasped manually.

Abstract: A method for heating containers having a product liquid therein utilizing the heat of condensation of a compressed refrigerant vapor. A first fluid medium is heated by transfer of heat from the compressed refrigerant vapor, thereby condensing the vapor to provide a liquid refrigerant useful for cooling. The containers are contacted with the heated fluid medium in the first stage of a container heating system having a plurality of stages, thereby transferring heat from the first medium to the containers. Thereafter the containers are contacted with a second fluid medium in a second stage of the system, the second medium entering the second stage at a temperature higher than the temperature at which the refrigerant vapor is condensed. The containers are heated in the system to a temperature above the dew point of the ambient air, thereby preventing condensation of moisture on the outside surfaces of the side walls of the containers leaving the system.

Abstract: The specification of the present application discloses an apparatus and method for dividing the multiple parallel output of a multi-lane container packaging machine to allow bulk packaging of a number of containers independent of the number of containers in one parallel output. This is accomplished by changing the parallel container output into a series output in which the container spacing and position relative to other containers is determined by the output rate of the multi-lane packaging machine and the speed of a second conveyor positioned at the discharge of the machine to change the parallel input of containers to a series format. A segmenting means is associated with the indexing of the multi-lane packaging machine and divides the time between successive indexes into divisions representative of the number and spacing of containers on the second conveyor.

Abstract: A method and apparatus are disclosed for opening envelopes by chemically degrading the envelope material at the envelope edges. A chemical degrading agent which functions more effectively when heated is applied to the envelope edges. The envelopes are arranged and aligned in face-to-face relationship to form at least one batch. The batches of envelopes are conveyed around an endless conveying loop oriented in a substantially vertical plane and defining upper and lower horizontal conveying paths. Heating platens are moved against the agent-applied edges of the envelopes to contact the agent-applied edges of the envelopes and to flex the envelopes inwardly of the edges to laterally displace the edges against the platens and transfer heat by conduction to the edges whereby the envelope material is degraded along the edges.

Abstract: A method and apparatus are disclosed for opening envelopes by applying an envelope material degrading chemical to the edges of the envelopes. The edges are contacted with a planar heating member and the envelopes are bent inwardly so that the edges are laterally displaced out of the planes defined by the major portions of the associated envelopes to promote more effective contact of the envelope edges with the heated member.

Abstract: Machine for tying packages or the like in which the tying means which is held fast at one end is guided by means of a tying means guide device around the package in the manner that the tying means guide device which is driven cyclically back and forth, its forward movement, accumulates a layer of tying means which surrounds the package, which layer is wound around the package upon the following return run, and in which there is preferably provided, below the support table for the package, a sealing device which connects the ends of the tying means and cuts off one end, the sealing device having grippers associated with it for holding the tying means fast. Each one of the grippers together with the end of the tying means held fast by it, carries out in cyclic dependency, a rotary movement which turns the gripper slot around. One of the two grippers, respectively, which are additionally axially displaceable, in a crosswise rotary position of its gripping slot S, pushes the tying means from the sealing device.

Abstract: A machine for cutting grass and the like having a flexible strip-like cutting member supported by a disc within a housing. The strip-like member is mounted vertically and the housing has a slope such that the strip-like member is rotated to have a horizontal leading cutting edge extending beyond the housing and an inclined trailing edge which creates a vortex effect within the housing when the strip is driven by a motor to cause grass to assume a more vertical position for cutting thereof. If the cutting edge of the strip strikes an obstacle, it will be deflected into a recess in the housing rather than propelling the obstacle which might have resulted if the blade were rigid. A bottom cover plate is removably secured to the housing to permit the disc carrying the cutting member to store the same therein. Indexing of the cutting member permits measured amounts thereof to be fed from storage.

Abstract: Loading equipment comprising a pick-up mechanism for picking up agricultural bulk material such as grass or hay, and having a conveying channel adjoining the take-up mechanism, and a conveyor having a conveying drum which rotates about a transverse axis is disclosed. At its periphery the drum is provided with feed combs having prongs that are pivotable about an axis, the feed prongs of the combs extending into the conveying channel and being controlled during rotation such that during conveying, each feed comb is moved by a crank arm into a radial position and during movement outside the conveying channel it is moved into a folded position.

Abstract: The yarn pieces to be joined are stretched between the two pairs of suction tubes (28, 29; 30, 31) and untwisted by being wound about spindles (20, 21). Hot compressed air fed along the surface of two blocks (32, 33) adjacent to the untwisted yarn portions remove free fibers and distribute the fiber tufts in the base of a channel formed in said blocks (32, 33). Said tufts are retained in the base of the channel by an electrostatic field formed with the aid of conductors (46) and the generator (GE). The blocks are then rotated about the rotation shafts (4, 5) until the channel edges are in contact with each other. Air is fed perpendicularly to the plane containing the fiber tufts in proximity to their respective ends in order to cause the fibers of the two tufts to interpenetrate, the spindles (20, 21) then being driven in the reverse direction in order to twist the fiber tufts and to disengage the yarn.

Abstract: A spline coupling positionable within a gear housing for coupling a flyer to the spindle gear of a spindle has an integrally attached spindle washer for effecting a seal about the spline coupling and spindle gears. The spindle washer is attached to an uppermost portion of the spline coupling and serves to prevent oil, water and lint from reaching both the spindle gear and the base of a bobbin positionable over the spindle.

Abstract: Fasciated yarn having uniform yarn construction and high strength, comprising a staple fiber group having a special staple assortment for making such a fasciated yarn.

Abstract: A pair of draw-off rollers (10, 11) of a thread drawing-off device comprising an over-mounted pressure roller (11) which cooperates resiliently with a driven roller (10) which projects across the front of the pressure roller (11). The pressure roller (11) has at least one recess (113, 114) on its front face (110) which is dimensioned in such a way that it temporarily completely releases a thread (4) sliding along the surface of the driven roller (10) and lying adjacent to the front (110) of the pressure roller (11). By means of a device of this type, the thread (4) is drawn off, for the purposes of joining, to such an extent from the spool (31) that the thread (4) reaches the side (310) of the spool (31) which is facing away from the front (110) of the pressure roller (11) provided with recesses (113, 114). The thread is then introduced into the spinning chamber (2) and is joined.

Abstract: The method and apparatus for removing irregularities in a thread being produced on a machine as the thread is traveling to a takeup device. A thread reserve having a suction applied thereto causing a loop to be formed therein which contains said irregularity. An additional pair of loops are formed in said thread, one above and one below the thread reserve. The loop formed in the end of the thread reserve is severed from the thread and the two remaining loops are inserted into a thread joining device. A thread suction extractor associated with the thread joining device pulls the end portions of the pair of loops taut permitting the joining operation to take place and, after joining of the thread, removing the separated ends.The thread reserve is provided with mechanism for maintaining the loop of thread extending therein separated and for severing and removing the portion of the loop containing the irregularity from the thread.

Abstract: In a gas turbine engine having a can annular combustion system, the diffusion passage between the outlet annulus of the engine compressor and the inlets to the individual combustion chambers located in an annular housing, is partially defined by diffusion control housings, one of each of which is integral with the upstream end of a respective one of the combustion chambers. Each diffusion control housing is wedge-like in planform and increases in circumferential width and radial height in the downstream direction. An opening is provided to receive a fuel injector and an air outlet or inlets is located at the upstream end of each housing. The air inlet can be in the form of a single opening at the apex of the housing or in the form of an opening in each flank of the housing.

Abstract: A master cylinder having a fluid pressure control valve mechanism which is constituted by a cylinder body, pistons slidably received in the cylinder body for defining pressure chambers in cooperation with each other and with one end wall of the cylinder body, respectively, a fluid pressure supply chamber in communication with a reservoir and isolated from the pressure chambers, a fluid pressure passage extending between one of the pressure chambers and a brake cylinder and a fluid pressure control valve mechanism having an annular space in communication with the fluid pressure supply chamber and isolated from the one pressure chamber.

Abstract: A by-pass valve apparatus for an exhaust turbocharger for an internal combustion engine is disclosed; the by-pass valve opening is controlled by the total pressure of air flow at the impleller outlet of a compressor of the turbocharger, in place of using the suction conduit static pressure of conventional apparatus.

Abstract: A combustor system for use with a turbocharged combustion engine comprises a combustor connected for continuous passage of engine exhaust gases. The combustor system includes a relatively low pressure fuel injection system for atomizing fuel for combustion in a substantially vitiated atmosphere, a fuel control system for supplying fuel to the combustor in response to engine operating conditions, and a heat exchanger for preheating compressed bypass air prior to supply thereof to the combustor.

Abstract: A new heat engine is provided in the form of a pressure oscillation generation device having a chamber with two spaced apart walls, means on the outside of one wall continuously heating said one wall, means on the other of said walls continuously cooling said other wall, a thermal shield movable between said walls, means alternating said thermal shield back and forth between said walls whereby a heat expansible fluid contained in said chamber is alternately heated and cooled thereby causing said fluid to undergo alternate expansions and contractions.

Abstract: A combustion chamber of the type employing staged combustion principles is disclosed. Effective control of undesirable pollutants is sought over a wide range of operating power levels. A specific objective is to separate staged combustion zones without the penetration of structural apparatus into the chamber. Single site fuel injection is desired.Primary fuel premixing tubes (34) and secondary fuel premixing tubes (38) terminate at the front wall (32) of the combustion chamber (30). The primary fuel premixing tubes have highly angled discharge swirlers at the downstream ends thereof. The highly angled swirlers (66) cause the fuel/air mixture emanating therefrom to burn in close proximity to the front wall. The secondary fuel premixing tubes have lowly angled discharge swirlers, or no swirlers at all, so as to cause the effluent therefrom to penetrate the region at which primary combustion is taking place without significantly influencing the fuel/air ratio at the primary combustion site (P).

Abstract: A pressure-liquefiable gas or vapor fed into the interior of a container which may constitute the fuel tank of a power unit for a model aircraft or other working model, is condensed within the container by introducing either a liquid derived from said gas or vapor or a liquid refrigerant from an external source into the interior of a hollow condensing element mounted in the container with its outer surface in contact with said gas or vapor inside the container, and then exhausting the contents of the condensing element to cool the outer surface thereof to a temperature below the condensation temperature of said gas or vapor.

Abstract: A cryogenic liquid coolant transfer device enhances flow of a liquified gas in the inboard direction by the incorporation of a threaded insert in the rotating inlet pipe of a superconducting rotor. The threads of the device also facilitate the reverse flow of liquid helium back into a stationary supply tube during fault conditions. The objective of the insert, during both normal and abnormal conditions, is to inhibit the flow of liquid coolant into the clearance gap that exists between rotating and stationary parts of the liquified gas transfer system.

Abstract: For a given temperature differential between a refrigerated heat sink and frontal cryopanel array, the mass of the entire cryopump array is minimized by providing thermal struts between the heat sink and the frontal array. The thermal struts extend through, but are isolated from, the primary pumping surface to minimize their lengths. The struts support the frontal array independent of the side radiation shield to facilitate fabrication. To further reduce the temperature differential to the frontal array, heat pipes may be provided. By reducing the temperature differential between the frontal cryopanel array and refrigerated heat sink through the use of solid thermal struts or heat pipes the load carrying capability of a cryopump can be improved. Heat pipes may also serve as a thermal switch between a heat sink and a cryopanel.

Abstract: Modern refrigerated container ships have a hold in which insulated containers carrying perishable products are stacked and are connected to a source of cold air, which is circulated through the containers to cool the products. This system has disadvantages such as the dehydration of the products by the constant circulation of the cold air. The invention provides that the containers in such a conveyance are sealed and their interiors contain a modified atmosphere being cooled by circulation through a heat exchange unit which is sealed in the container and which receives cold air from the exterior source. The invention can analagously be applied to the warming of products.

Abstract: An improved system for control of defrost in a refrigeration system of the type wherein one or more evaporators are defrosted by hot gas from the compressor while one or more evaporators remain in refrigeration operation. Prior to operating diverting valves to establish defrosting gas flow in an evaporator, a liquid line valve is closed and the system is pumped down to a predetermined amount of refrigerant charge in the defrost loop. In a preferred embodiment, this is accomplished by first opening the liquid line valve to flood the system, then closing it for a predetermined time interval to pump down to the predetermined amount of charge prior to operating the diverting valves.

Abstract: In a compressor protective switch system for the refrigerant compressor of the refrigeration system of an automotive air conditioner, a pressure sensitive switch adapted to be open in response to a refrigerant pressure lower than a relatively high predetermined value is paralleled by a positive temperature coefficient (PTC) resistance element or a series combination of a PTC resistance element and an atmospheric temperature sensitive switch adapted to be open in response to an atmospheric temperature lower than a predetermined value.

Abstract: The outlet temperature of a cooler (31) is controlled within predetermined limits in accordance with the difference between a desired set temperature in an enclosure (13) and the actual temperature therein in such a manner as to minimize the time the cooler (31) is energized. Minor temperature variations in the enclosure occuring while the cooler (31) is off are compensated for by positioning an air mix door (37).

Abstract: A thermally-integrated system combining a heat exchange unit including a tank containing unpressurized water with a compressor-type refrigerator in a manner whereby energy for heating cold water conducted through the unit in a pressurized cold water line is extracted from the refrigerator. In the system, an external line carrying the hot refrigerant and acting as an auxiliary condenser is extended from the compressor of the refrigerator to the main condenser thereof, the external line passing through the water tank of the heat exchange unit in heat exchange relationship with the water line both in the upper and lower region of the tank whereby heat is transferred to the cold water.

Abstract: A cabinet cooler or freezer which efficiently utilizes cryogenic refrigeration either with or without mechanical refrigeration. The freezer intermittently freezes relatively large batches of food by efficiently utilizing the natural expansion effect of a liquid cryogen, in combination with mechanical circulation by blowers, to create an overall circulation that efficiently removes heat from the food. A secondary circulation effect is induced, in a manner similar to the operation of a jet pump, which amplifies the circulation and allows CO.sub.2 to be employed as the cryogen with modulating valve control to achieve uniformly low temperature throughout the cabinet without snow build-up on the cabinet bottom. Some cabinet versions create a cyclonic circulation pattern about a vertical axis that is particularly effective.

Abstract: A refrigeration system particularly adapted for use on boats feature a holding plate in the form of a small tank with a removable lid. A set of flanges are formed integrally with the cover, preferably of heavy cast aluminum, and project into the interior of the tank. A cooling coil that carries a standard refrigeration fluid is wrapped around a convexly curved outer surface of the flanges in a manner that maximizes the contact between the coil and the flanges. The tank is preferably filled with a liquid that surrounds the coil and serves as a cold reservoir. The tank is also preferably located within an insulating cabinet and is spaced from the walls of the cabinet to create a zone for conventional refrigeration.

Abstract: An ice cap for a wearer's head which includes a bag having inner and outer walls lined interiorly with plastic which define a cavity to be filled with ice through an opening in the bag arranged to be sealed with a removable VELCRO panel, the bag having a marginal edge defining an opening for positioning of the bag on the scalp of the wearer's head with an elastic band extending throughout the marginal edge for yieldably retaining the bag on the wearer's head.

Abstract: An interlock fabric with a lining wherein, for the front fabric, plain stitches are formed using 100% synthetic fiber yarns A, B, D, E, G, H, J, K, M, N, P, Q, S, T, V and W, and for the back fabric, use is made of yarns of a natural fiber having excellent sweat-absorption or blended yarns of the natural fiber with other fibers C, F, I, L, O, R, U and X whereby the under yarns C, F, I and L form purls at the back vertical rows D.sub.1, D.sub.3 and at the same time, are seamed to the knits at the front vertical row C.sub.2, while the under yarns O, R, U and X form purls at the back vertical rows D.sub.1, D.sub.3 and at the same time, are knit-seamed by a tuck stitch at the front vertical row C.sub.4, so that the front fabric has a flat surface due to the plain stitch and the back fabric has honeycomb-like gaps a due to the tuck stitch .

Abstract: A dehydrator of this invention comprises a rotatable dehydrating tank and a water spray cylinder concentrically disposed therewith and rotated with said dehydrating tank. Said water spray cylinder is formed of a porous material having a large number of water-permeable holes distributed with a density varying with the upper and lower parts of the peripheral wall of said water spray cylinder.

Abstract: A hardware assembly for luggage and the like includes a latch pivotally supported on a luggage case and held in a closed position by engagement between catch elements on the latch and cooperating catch elements on a control member supported for movement along the case, the control member being biased in a direction to engage the catch elements. A pivoted manual actuator associated with the latch engages the control member and is capable of moving the control member in a direction to disengage the catch elements to allow the latch to be opened, when the manual actuator is operated. The catch elements serve as a safety catch to prevent the latch from being opened until the catch elements are disengaged. The hardware assembly may further include a latching slide member coupled to the latch by a link member for movement with the latch, and for engaging a cooperable latch element on a second part of the case when the latch is in the closed position.

Abstract: The combination of a cylinder lock and key, wherein the key comprises a blade with a longitudinally extending edge portion at one side of the blade provided with a coded surface for engaging the ends of a row of locking pins in the cylinder core of the lock. The coded surface has code portions which engage a segment of the end of each pin spaced from the center thereof, and transition portions for guiding the pins between adjacent code portions and which are of concavely curved cross-sectional shape to provide for arcuate engagement with the pins, the code portions and transition portions of the coded surface being open to the side of the key blade and spaced from the other side thereof. The coded surface is produced by moving a rotary cutting tool relative to the key blank with substantially the same movement as the pins undergo relative to the key as the latter is inserted into and removed from the cylinder of the lock.

Abstract: Apparatus for detecting faults in inherent flatness in a moving stretched strip, comprising a deflector roll in the form of a cylinder covered by a thin casing. Cavities are machined in the cylinder and arranged on a helix traced on the roll. Each cavity contains a displacement detector whose moving part in contact with the inner surface of the thin casing moves in the radial direction of the roll under the action of the stresses exerted by the sheet. The detectors have a primary winding and a secondary winding through which passes a core, solid with the moving part of the detector. The apparatus includes an optical encoding system for marking the angular position of the roll and a programming apparatus for sending a pulse of current to the primary windings of the detectors once under load and once not under load. A collector and processor for the emitted signals allow calculation of the values proportional to the tension in the strip, along its width.

Abstract: Method for straightening elongated drawn round stock, which includes simultaneously advancing the stock in the longitudinal direction, rotating the stock about the longitudinal axis thereof and deflecting the stock from a straight line exceeding the yield point thereof in a straightening arc, and subjecting the surface of the stock to friction forces acting in the longitudinal direction during the deflection.