Abstract: A sanding wheel is provided having easily removable and replaceable contoured abrasive strips enabling use of the sanding wheel to sand workpieces of different contours accurately without replacement of the complete sanding wheel.

Abstract: An improved particle-blast cleaning apparatus and process featuring sublimable pellets as the particulate media is described as including a source of sublimable pellets, housing means having laterally spaced pellet receiving and discharge stations, and pellet feeder means for transporting the pellets from the receiving station to the discharge station. The pellet feeder means further includes a plurality of reciprocating feeder bars each having a transport bore formed therein to receive the pellets for lateral transport between the receiving and discharge stations. Means for providing gravity flow of the pellets to the transport bores at the receiving station are included, as is a discharge nozzle and means for supplying a pressurized transport gas at the discharge station for conveying the pellets from the discharge station to the discharge nozzle.

Abstract: A building structure comprising a core unit including bathroom and kitchen facilities and a plurality of entrance and exit openings and a plurality of other separate building units having entrance and exit openings therein positioned adjacent the core unit and in communication therewith and with each other through aligned entrance and exit openings, separately constructed at a remote location and secured together in vertically adjusted level position at the building site. The invention further includes the method of constructing the building structure including the steps of constructing the separate core and other building units at a remote location, transporting them to a building site, locating them on foundation structures, vertically adjusting the individual structures and securing them together and subsequently adding additional other separate building units to expand the building structure.

Abstract: A lid opener apparatus is provided for use with a relatively large storage bin, and comprises a handle and structure for mounting and supporting the handle at a convenient height for manipulation by an operator. The mounting and support structure includes a first elongate link which has one end thereof pivotally mounted to the handle and the other end thereof pivotally mounted at a fixed location relative to the bin. A first elongate rod-like member is pivotally mounted to the same end of the link which receives the handle and extends upwardly to an area adjacent the top of the bin. A second rod-like member is pivotally coupled at one end thereof to the lid and extends outwardly to an area adjacent the uppermost end of the first rod-like member.

Abstract: A partition which can be used in offices or like establishments has a row of neighboring upright rod-shaped sound-absorbing components with transversely extending openings for several flexible strip- or band-shaped metallic coupling elements in the form of leaf springs which enable the partition to be flexed so that the components are located in a common plane or together form a U-shaped, S-shaped, L-shaped or a like panel. The end portions of the flexible coupling elements are secured to the corresponding outer components, and the securing means can be provided with devices for coupling the partition to an adjacent partition. Certain rod-shaped components carry legs which are weighted and have roughened floor-contacting surfaces so as to reduce the likelihood of unintentional slippage of the feet relative to the floor, particularly when the rod-shaped components are not disposed in a common plane.

Abstract: Thermally insulating panels are formed at opposite sides with finishing edge strips about which sheet metal facings of the panels engage, the strips having ribs and grooves to allow mortise and tenon interconnection of the panels. A fold between a groove and a rib of the respective panel receives a metal insert which provides structural support and interengaging flanges of the insert, which preferably is composed of high density PVC, can interlock for effective sealing.

Abstract: The invention disclosed herein relates to fireproof building panels for use in building structures and in adding to existing structures where it is desired to insulate the internal volume defined by the structure from a high outside ambient temperature. The building panel is comprised of a fiber insulating material placed against a metal screen. The outer perimeter of the fiber material and the metal frame is surrounded by a metallic channel.

Abstract: A mechanical fastener for securing a flexible sheet of an elastomeric material to the upper surface of a roof via the use of a plurality of such fasteners, each of which include upper and lower retaining members, wherein the latter are anchored to the roofing surface. Both of the retaining members are formed with a series of annular concentric ridges and grooves which cooperate with each other to form a series of annular gripping zones with the elastomeric sheet when the upper retainer is drawn into a clamping relationship with the botton retainer by a threaded fastener. The fastener is engaged with an internally threaded central boss formed on the lower retainer. A sharp bottom edge of the fastener cuts an aperture in the elastomeric sheet prior to engagement with the threaded boss.

Abstract: A suspended island ceiling system is disclosed in which conventional grid runners are interconnected to produce a rectangular grid. The grid defines openings in which ceiling panels are supported. The grid includes perimeter runners and inner runners which connect at their ends to the perimeter runners at spaced locations along the length of the perimeter runners. Channel-shaped border members are supported on the perimeter runners and provide a finished edge appearance for the island. The border members provide an outer vertically extending base wall and vertically spaced, horizontally extending legs. The upper leg extends over the adjacent perimeter runner and engages the upper surface and one side of the bulb thereof. The lower leg extends along the lower side of the perimeter runners and engages the lower side and at least one side of the flange of the perimeter runners.

Abstract: A decorative wall panel includes a fabric covering on a board removably secured to an existing wall. The rear of the board carries a plurality of "VELCRO" fasteners for cooperation with corresponding fasteners on the wall. The panels may be easily secured to the wall, such as a drywall partition, and may be just as easily removed whenever desired.

Abstract: The spacing retainer contains spacer elements comprising a multiple number of interconnected angle elements and locking elements. The locking elements are lockingly connected with a first structural steel fabric by means of locking parts at their free ends. A second structural steel fabric is held at a spacing from the first structural steel fabric by means of the series-arranged and side-by-side arranged spacer elements. The spacer elements comprise struts for their reinforcement.

Abstract: Apparatus for anchoring slabs, such as natural stone slabs, masonry wall blocks or the like, to an anchorage base, e.g. a building, comprising an angular holder having two spaced struts. Each strut includes a vertical holding leg and a horizontal supporting leg. The struts are arranged perpendicular to the surface of the anchorage base. The struts are braced together and combined with an anchor for anchoring the holder in the base, and a support member for supporting the slabs or the like. The holder and connected elements can be mass produced inexpensively by punching or stamping flat material, require no complex shaping work, exhibit a minimum weight with high load-bearing capacity, and can be easily adjustable.

Abstract: A tension tie for holding a wood frame member subject to a design load in tension to a wood or concrete member. The tie is connected to the wood frame member by nail fasteners and to the concrete or wood member by an anchor bolt. The tension tie is constructed from sheet metal and includes an elongated strap member which is connected to a foot member by means of a rivet. The foot member is characterized by a single sheet continuous seat member connected to side members which in turn are connected to overlapped back members joined by the same rivet used to connect the foot member to the strap member.

Abstract: A mixture consisting essentially of (1) an organic polyisocyanate compound and/or a prepolymer having terminal isocyanate residues, which is derived from the reaction of an organic polyisocyanate with a polyhydroxyl compound, and (2) 2-pyrrolidone, is injected for grouting into water-leaking cracks or openings of concrete structures such as water tanks, subway constructions and tunnels. The injected mixture diffuses into the cracks or openings and is cured in short time by reacting with water at the leaking sites. The resultant polyurethane foam securely seals the water leaking sites.

Abstract: A method of laying tile-like flooring members on a floor surface including forming on the surface an interconnected framework of a plurality of frame members to provide an array of recesses(11). In each recess a tile-like flooring member is laid having on its undersurface a projection (71) for snugly engaging the recess(11). Projecting edges of the flooring members extend over the frame members to engage each other and together form a continuous floor covering. The arrangement has the advantage of flooring effectively with carpet on a floor surface of an office room where a number of office apparatus are located with entangled creeping cables which shall be rearranged often afterwards.

Abstract: Apparatus for discriminately treating containers and the like, the apparatus includes a continuous conveyor mounting arms to carry a random stream of containers along first and second paths of travel; two photoelectric sensors positioned to sense and discriminate among the random stream of containers, and a control mechanism is mounted adjacent to the continuous conveyor to divert selected containers into the first or second path of travel, containers diverted into the second path of travel being urged into oscillating engagement with a vibrating bed for the purpose of settling the contents of the container.

Abstract: A device having two opposed surfaces with a minimum spacing therebetween for pressing together the tongue-and-groove strips of a bag when the bag is slid across the surfaces. There is a larger spacing between the surfaces for the lead-in of the bag between the other surfaces. The surfaces are on two cantilever type of arms for entry and maneuvering of the bag.

Abstract: In a machine for packaging articles in a tray carton a first stationary rail section folds up the end panels of a moving tray carton blank to an intermediate position and, after the application of glue to either the end flaps or the end panels, a third stationary rail section completes the operation of folding the end panels of the moving blank up against the end flaps. A second normally stationary section located between the first and third sections maintains the end panels in their intermediate positions. When the machine stops for any reason the second section moves the end panels of the tray carton located at that station into contact with the end flaps to adhere the end panels to the end flaps of the stationary tray carton.

Abstract: A total system and method for storage and delivery of heads of various sizes is disclosed. The system and method are particularly adapted for application of circular disc heads to the end of a paper roll during a roll wrapping operation. A plurality of vertically spaced storage racks are provided for handling different sized heads, and a head dispenser including a pickup mechanism for lifting an uppermost head from a storage rack and delivering it to a pickup platen is also provided. The storage racks are preferably inclined to allow gravity feed to indexing positions at the lower ends of each rack. The pickup platen operates independently of the pickup mechanism so that heads can be lifted from the storage rack while the platen is enroute to the pickup location.

Abstract: A process of packaging goods particularly foodstuffs in which the goods are placed in a first container for example a plastics bag or a tray having a deformable lid, sealing the container except for an aperture provided by an open valve. The container is then placed in a second container having rigid walls. A vacuum is then created in both containers after which the inner container is completely sealed by for example closing the valve whilst preventing the entry of undesireable substances. In a preferred process an inert or preserving gas is introduced into the first container prior to sealing.

Abstract: A bag pack of a plurality of stacked bags made from thermoplastic film, each bag comprising front and rear walls; a bottom; an open-mouth portion, said open-mouth portion being characterized by having handles which are integral extensions of said walls and located at opposite ends of said bag mouth portion. A single film tab member extends above each rear bag wall and above the open-mouth portion. The tab is coplanar with the rear wall and connected thereto through a localized line of film weakening. The tabs of all bags are in registration and are a collection of only tabs coplanar with said rear walls. The tabs are bonded together and include a suspension means to accommodate physical suspension of the pack.

Abstract: An apparatus and method are provided for staging a plurality of products into a grouping of a desired number of the products having a given center-to-center spacing therebetween. The staging assembly includes an endless track that indexes in order to feed, without gaps, a desired number of products thereonto, which endless track off-feeds in a generally constant manner in order to provide, in association with the takeaway speed of a receiving conveyor, the desired center-to-center spacing.

Abstract: A method and apparatus for controlling the relative position of printing appearing on packages formed by form-fill-seal packaging machine in which individual packages are formed in substantially continuous fashion from a web of pre-printed package stock. Pre-printed registration indicia are detected on the web of package stock, and a control signal if generated which actuates a tension regulating device which varies the tension applied to the package stock as the package stock is formed into packages. In a preferred embodiment, the tension regulating device comprises a roll having selectable rotational resistance, over which the web is partially wrapped.

Abstract: A machine for vacuum-sealing a block of cheese in a tube of heat-sealable plastics material forming the lining of a cheese box mounted on a wheeled dolly, the tubular lining having an open end which projects out of the cheese box. The machine comprises a frame having an upright wall fitted with transverse rails for supporting the dolly carrying the cheese box, a hollow casing open at one end and mounted on the frame for movement between an open position permitting movement of the dolly and cheese box onto the rails and a closed position in which the casing cooperates with the wall to form a chamber enclosing the rails, dolly and cheese box, and means for evacuating air from the chamber. The machine also has gripper mechanism for holding taut the open end of the lining tube, and welding mechanism for sealing the open end of the tube when the chamber is evacuated, the gripper and welding mechanisms being enclosed within the chamber.

Abstract: Apparatus for storing pieces of fresh meat has a vessel with an open top for insertion or removal of meat and a cover which overlies the meat in the vessel and can be pushed downwardly by a jack so as to pressurize the pieces of meat and expel air by eliminating gaps between neighboring pieces of meat as well as between the pieces of meat and the internal surface of the vessel. Compression of meat results in expulsion of juices which rise and overlie the topmost layer of meat around the cover.

Abstract: A case packing head for the packing of rectangular containers into cases. In a first embodiment of the invention, the containers are passed through arcuate paths on skid blades such that the containers fan apart above the top edges of the cross fingers of the packing head, avoiding the cross fingers upon shifting of the skid blades. In another embodiment, the skid blades are angled downwardly and the stop blocks are adapted to withdraw a sufficient amount to allow the containers to tilt on the skide blades and separate. A separating grid is then driven between the containers to space them apart with the spaces positioned above the top edges of the cross fingers. In yet another embodiment, the skid blade assembly comprises a pair of blades, one slidable upon the other. The stop block is connected to the sliding blade which has teeth thereon for contacting the containers.

Abstract: A flattened tubular plastic tube having one pair of edge creases is withdrawn from a vertical axis reel and passed through horizontal axis rollers to impart a pair of intermediate creases. Cooperating rotating and stationary blades cut the plastic tube into short sleeves which are immediately gripped between actuator shoes on a pair of translating chains and a pair of translating frictional belts. The compressively interfaced actuator shoes and belts advance the sleeves to the inlet of a channel defined by laterally spaced apart slide members which have v-grooves into which opposite creased edges are inserted at the inlet whereupon hooks on another chain loop push the sleeves through the channel. The channel width converges so the sleeves open as they are pushed along the channel to be engageable by the head of a passing bottle.

Abstract: In a self-propelled cotton harvester, a microprocessor circuit associated with the cotton compactor for automatically controlling the operating cycles of the compactor. A digital counter-type transducer is associated with the transmission gear or drive wheel and counts the number of revolutions of that member. Once the operator has entered in the microprocessor memory the starting time of the compactor operation in relation to the number of revolutions of the drive gear or wheel, each cotton picking cycle thereafter proceeds automatically without intervention by the operator, so that operation of the compactor begins at substantially the same point in each cotton load.

Abstract: The present invention relates to a rake head for a lawn or garden rake having plural rows of tines. The rake head includes a support member having a first and second edge. The rake head has a first and a second row of tines to be retained such that they have a substantially equal degree and range of movement and stress in a generally upward direction. Further, a first plurality of tines attached to a substantially planar support member defines a first plane that is intersected by a second plurality of tines attached to the support member and defines a second plane. Each of the tines of the second plurality of tines extends between and adjacent the tines of the first plurality of tines outside of the second edge. A separation of the tines is provided, thus forming two substantially identical rows of raking tines.

Abstract: A device for removing residual fibers from perforated friction surfaces of an OE-friction spinning machine includes a suction device including a controllable cut-off element connected to a suction source, a suction tube section connected between the cut-off element and the friction surfaces, and a controllable compressed air connection disposed in the suction tube section.

Abstract: A method of producing a twisted thread from spinning fibers by friction spinning includes moving two friction elements of a friction spinning machine in opposite directions defining a spinning wedge therebetween, at least one of the friction elements having a perforated wall, feeding spinning fibers into the spinning wedge in a given direction with a transporting air current, continuously withdrawing a twisted thread from the spinning wedge in the given direction, sucking a first part of the transporting air current through the perforated wall of at least one of the friction elements, and sucking a second part of the transporting air parallel to the spinning wedge, parallel to the thread and opposite to the given direction in which the thread is withdrawn and the fibers are fed into the spinning wedge, and a device for carrying out the method.

Abstract: A detachable chain composed of chain links is broadly used as a conveyor chain with attachments for various kinds of articles to be conveyed, or as a power transmitting chain. The conventional chain of this type, however, could convey only light load when used as a conveyor chain and could run only at a low speed when used as a power transmitting chain. This invention provides a detachable chain improved both in the rupture strength and service life, as well as a method of producing the same.

Abstract: In the event of an operational disturbance in a turbine-compressor unit of a PFBC plant, the turbine and the compressor are isolated from the bed vessel of the plant by closing a valve in the gas supply conduit to the turbine and by closing a valve in the conduit leading from the compressor. At the same time a valve is opened in a by-pass conduit between the compressor and the turbine. Combustion air is allowed to escape into the atmosphere via one or more blow-off valves. The bed vessel and/or a space between the pressure vessel and the bed vessel are supplied with inert gas in such a way that combustion in the bed is damped down.

Abstract: A pressure-wave machine for supercharging internal combustion engines having a cellular wheel with surfaces coated with catalyst material.

Abstract: The low pressure compressor and fan together with the intermediate case are removable as a unit from the core engine by removal of the nose cone and a stub shaft at the front of the low pressure turbine shaft and at the ID of the fan hub (50) to provide access to attachment bolts at the inner portion of the intermediate case which holds the bearing for the high pressure rotor in position within the intermediate case after assembly of the engine.

Abstract: The present invention relates to reducing the tendency to mutate in solid fuel rocket motors, especially such motors which have deeply submerged nozzles. The invention comprises a series of baffles or beads for restraining the motion of trapped combustion products.

Abstract: An ignition system is disclosed for regenerating a particulate trap (40-400 cells per lineal inch) used to filter the exhaust gas of an internal combustion engine, the particulate trap having an entrance face for receiving a gaseous flow therethrough.

Abstract: In an exhaust gas pipe of a diesel engine, a particle separator serving for reduction of the particle emission of the diesel engine by exhaust gas aftertreatment, a burner by which the particle separator can be regenerated by means of hot fuel gases delivered by the burner unit, the burner unit is so placed that, even in the case of leaks occurring at a flap valve for shutting off of the fuel gas line, no impairment of the operation of the burner is to be feared. For this purpose, upstream from the burner, a blower may be installed, which constantly provides air to the burner unit and the space of the fuel gas line between the flap valve and the burner unit, the air being discharged from the space into the environment by a vent pipe. In this way, exhaust gases, which leak past the closed flap valve into the fuel gas line, do not reach the burner and are discharged by the vent pipe into the enviroment.

Abstract: An electrohydraulic system includes a plurality of electrohydraulic devices individually controlled by microprocessor-based control electronics. The device controllers are connected in common by a bidirectional serial data bus to a master controller for coordinating operation of the various devices. Internal programming within the master controller establishes a repetitive time-sequence of windows for communications with the various device controllers for downloading control signals and parameters, and for uploading data indicative of system status and operation. The various device controllers include internal programming for operating the associated hydraulic devices as a function of control signals and parameters received from the master controller.

Abstract: A master cylinder has a piston slidably fitted in a stepped cylinder bore including a first pressure chamber connected through a coupling hole to a reservoir. When a fluid pressure in the first pressure chamber is increased to a predetermined level at the time the piston is moved forward, a second valve disposed in the coupling hole is opened to release a fluid pressure from the first pressure chamber into the reservoir. When a negative pressure is developed in the first pressure chamber as the piston is moved back, a first valve in the coupling hole is opened to supply a fluid from the reservoir into the first pressure chamber.

Abstract: A water purification or filtration system supplies purified or filtered water into an unpressurized, heavily insulated reservoir. A thermoelectric module thermally coupled to the reservoir pumps heat into or out of the reservoir, heating or cooling the purified water. A flow director thermally coupled to the thermoelectric module "shapes" room temperature water, which may be brine wastewater produced by the purification system or tap water diverted from the main water line by an in-line flow restrictor into a thin sheet flowing through a thin passage in the flow directors. Pumped heat from the thermoelectric module thereby is efficiently absorbed by the thin sheets of water, which may be discharged into a drain. A sealed electric pump delivers purified or filtered cooled (or heated) water to a spigot in response to actuating of a control switch.

Abstract: An arsine storage and delivery system, and, more specifically, an improved system for storing arsine on zeolite while providing delivery of the arsine as needed.

Abstract: A very low temperature liquid transfer system of the present invention is constructed with first and second containers, each storing therein very low temperature liquid; a connecting tube for communicatively connecting the first and second containers; a pressure control system for increasing and decreasing a pressure in the first container for pressurized transfer of the very low temperature liquid from the first container into the second container through the connecting tube; a pressure gauge for measuring a pressure in the first container; a liquid level sensor for measuring a quantity of the very low temperature liquid in the second container; and a control which functions to logically determine input signals from the pressure gauge and the liquid level sensor, and to produce an output operating signal to the pressure control system based on the logical determination.

Abstract: The air conditioning apparatus comprises a variable speed compressor provided outside of a room for compressing a refrigerant, a heat-exchanger provided inside of the room together with a blower, a controller for controlling the operation of the compressor and the blower, and a plurality of sensors connected with the controller for detecting room temperature, heat-exchanger temperature and humidity in the room. A switching means is further provided for selectively setting the operational mode of the controller, and means is further provided in the controller for controlling the rotating speed of the compressor and the quantity of air delivered from the blower based on the setting of the switching means and the outputs of the sensors such that during the cooling operation of the apparatus, the temperature of the heat-exchanger is varied in two or more predetermined ranges.

Abstract: Refrigeration is produced by an intermittent absorption cycle. The cycle is driven by solar radiation, and utilizes NH.sub.3 as refrigerant and a liquid, preferably H.sub.2 O, as absorbent. Referring to FIG. 1, solar radiation is collected during the daytime or in generation mode by a Compound Parabolic Collector 2, which reflects the light onto a cylindrical target vessel 1 containing the absorption working pair. Ammonia is boiled out of the target, the vapor travels to condenser 5 where it is cooled to liquid, and the liquid is stored in receiver vessel 6. During the nighttime, or absorption mode, liquid is released from the receiver vessel into an evaporator coil 8 located in a cold box 9 wherein it vaporizes, thus removing heat from the contents of the cold box. The vaporized ammonia then is absorbed back into the absorbent, in the target vessel.

Abstract: The container for use in the transporation of fresh provisions comprises a storage chamber for containing perishable foods and a machine room divided from each other by partition walls, main cold air flow channels opened at one end on the side of a door and auxiliary cold air flow channels closed at the other end on the side of the door, both of which are respectively disposed to the surface of the bottom wall, top wall or one side wall of the storage chamber, apparatus for blowing cold airs having ports perforated substantially over the entire region at the surface of the auxiliary cold air flow channels on the side of the storage chamber, apparatus disposed within the machine room for controlling the temperature of the recycled cold airs from the storage chamber and then supplying them by way of the main cold air flow channels to the inside of the storage chamber, and apparatus disopsed within the machine room for pressurizing the circulated cold airs from the storage chamber and then feeding them by way of

Abstract: An upper transverse chamber and a lower transverse chamber have apertures for the passage of cooling agent to a product passing between them. At least the upper chamber is divided into a central compartment corresponding to the central zone of the product, and two lateral compartments, corresponding respectively to the two edge zones of the product. The division into compartments is achieved by partitions which are perpendicular to the bottom of the upper chamber. The partitions form, inside of the upper chamber, a channel converging in the direction of motion of the product.

Abstract: A pattern monitoring method and apparatus wherein the movements of each individual yarn are detected and recorded. A piece of textile goods is produced, and all the yarn movements for making that piece are recorded, that record being then used as a standard. Additional pieces are made, and the yarn movements during the making of the additional pieces are detected and similarly recorded. The movements may, immediately or eventually be compared to the standard. An error signal is given when there is no match; however, an allowable error can be selected so that the error signal is given only when the error is greater than the selected allowable error. The error signal can be a light, or may be a stop motion device.

Abstract: A washing machine has a stationary tub with drain outlets at the bottom periphery. A venturi conduit extends from the bottom of the tub opening upward along the axis of the tub to produce a toroidal flow of water in an open basket in the tub seated on an annular disk surrounding the venturi opening. The annular disk is mounted on rollers at the bottom of the tub and carries permanent magnets. An annular driving member also carrying magnets is located below the bottom of the tub surrounding the conduit connected to the venturi and carries permanent magnets opposite those on the annular disk inside the tub. A pulley at the bottom of the driving member is coupled by a belt to the pulley on a drive motor. A pump is connected between the venturi and the tub outlets. A selectively operable valve controls the flow of water between the venturi and a drain outlet. This assembly is contained in a cabinet having an opening covered by a lid. The opening is large enough to allow removal and insertion of the open basket.

Abstract: A padlock cover molded in one rigid piece and open at the back. The cover has a cylindrical inner wall for holding the body of a padlock, an outer side wall spaced laterally outward from the inner wall, and a front wall extending from the outer side wall laterally inward to the inner wall and slightly past it at the top. At the top on one side the inner wall and the outer side wall have vertically aligned openings for passing one leg of the usual inverted U-shaped shackle of the padlock. At the top on the opposite side the inner wall and the outer side wall have vertically aligned slots which are open at the back to pass the opposite leg of the padlock shackle.