Abstract: A plenum drying hopper for granular material includes a housing enclosing a plenum chamber, an upper material inlet for introducing a flow of granular material into the plenum chamber, and a perforate diffuser cone, located in the lower portion of the plenum chamber, that directs the granular material from the plenum chamber into a material outlet. The perforations in the diffuser cone are large enough to permit ready passage of gas therethrough but small enough to preclude passage of all but the finest particles of the granular material. A gas inlet extends into the lower portion of the housing for introducing a drying gas (air) into the plenum chamber; a gas outlet discharges the gas from the upper part of the housing. Heaters are provided for heating the gas prior to its entry into the plenum chamber.

Abstract: A method and apparatus for curing of wet resin-coated articles in a curing chamber by means of a vaporous curing agent. The vaporous curing agent is circulated through distribution members having nozzles or openings which are adapted to disperse the curing agent in an angular direction cocurrent with the direction of travel of the articles being passed through the curing chamber. The exhaust is provided near the exit end, and thus a gaseous flow is induced from the inlet through the chamber to the exhaust thereby minimizing the escape of vaporous curing agent through the inlet opening.

Abstract: This invention relates to boots for divers, used in association with a wet suit, dry suit, other diving gears or for other aquatic activities. Each boot comprises a sock, made of elastomeric material, preferably covered by nylon fabric on one or two sides, and an outsole, together with a back stay, a toe-cap and a foxing, made of non-cellular rubber and directly vulcanized as a unit on the sock. The resulting boot is long-lasting because the outsole does not become detached from the sock. Vulcanization is carried out in such a way that it does not affect the cellular elastomeric material.

Abstract: Athletic footwear for non-contact or light-contact sports having a resilient sole portion to which front and rear upper portions of reinforced canvas or rubber material are securely attached. Foot protection and mobility are optimized by isolating the plural upper portions, one from the other, and by positioning the front and rear upper portions so as to be effective at points of maximum foot flexibility, namely, over the ball of the foot and across the ankle. Leather reinforcement of the canvas portions at both the bosses through which laces are passed for drawing the shoe to the wearer's foot and at the exposed edges of the canvas uppers prevents discomfort to a sockless user while permitting maximum absorption of stress at these points.

Abstract: A one-piece outer sole for logging boots is described which includes pointed metal calks received by receptacles in portions of the outersole which are located beneath the ball, arch and heel portions of the wearer's foot. The sole is made of a flexible material; and the receptacles beneath the ball portion of the wearer's foot are aligned in multiple rows each of which is parallel to a line through the metatarsal phalangeal joints of the wearer's foot. The rows are spaced apart a sufficient distance that an uninterrupted, straight, lateral area of the outersole extends between adjacent rows so that the portion of the outersole beneath the ball portion of the wearer's foot is longitudinally flexible along an axis which is normal to the rows.

Abstract: A sole attachment or undersupport in the form of a plate attached to the sole of footwear, in particular a ski boot, wherein the lower tread or walking surface is domed in the direction of the sole. The plate is provided with holder elements which engage over the sole. One of the holder elements is rigid, the other holder element is movable. Fixing means, for instance pins are provided, which engage into bores provided at the ski boot sole. The plate consists of telescopically adjustable plate portions. There are also provided recesses in the tread surface and adjustable anti-skid elements, such as adjustable pins serving to prevent slipping or skidding by the user. Holders can be provided for securing the sole attachment at a ski when it is not worn at the ski boot or the like.

Abstract: An improved earth moving machine for removing topsoil and transporting the soil to another location for unloading and distribution. The earth moving machine includes a frame, a primary mover for the earth moving machine mounted in the frame, a bowl pivotally carried by the frame and having two generally vertical parallel side walls and a scraping edge at the mouth of the bowl for removing topsoil from the ground, an elevator positioned at the mouth of the bowl to carry the soil from the scraping edge upwardly into the bowl, an ejector floor movably secured in the bottom of the bowl to upwardly open and release topsoil carried therein, a pair of ejector floor group members for supporting the ejector floor, each fixed and pivotally carried by a respective bowl wall, a pair of elevator linkage group members, each adjacent to a respective bowl wall and interconnecting the elevator and a respective ejector floor group member. The improvement comprises an improved elevator linkage group member.

Abstract: A light weight compact snow thrower is disclosed having an extendable and forwardly foldable upper handle bar for operator convenience and for compact storage as in the trunk of an automobile. The snow thrower also includes a plurality of engine options between a 2.25 horsepower two cycle engine and a 5 horsepower four cycle engine, and further includes a chute and impeller width option without requiring alteration of the basic components of the light weight frame which incorporates the body of the larger engine as a structural component of the frame.

Abstract: A suspension-type file folder is provided with an indicia tab molded unitarily with a plate or wing securing the tubular label-receiving window to a leaf of the file folder. The plate is molded unitarily with a pincer engageable with a male member of the adjacent leaf of the next folder to interconnect the file folders and prevent insertion of articles between them.

Abstract: A photo album page of the type including a laminated base having means for engaging on each side thereof a photograph supporting frame element. The mounting edge of the page is provided with hinged means formed by a pair of tape strips which engage the base along one side thereof, and an extruded hollow channel forming member along a second side thereof. A relatively stiff wire engages the channel forming member to be frictionally retained therein, the free edges of the wire projecting from the channel to selectively engage a known binding.

Abstract: An ice fishing device having a cylindrical sleeve that is resilient and radially compressible to enable the ice fishing device to adapt to a variety of different size holes in the ice and members on the cylindrical sleeve to vertically and securely support the ice fishing device within the confines of a hole in the ice. A small charcoal chamber attaches to the side of the ice fishing device and holds sufficient charcoal to produce sufficient heat to keep the water in the hole from freezing yet keep the ice fishing device sufficiently cool so as not to burn a fishing line located therein.

Abstract: An integral structure is provided for ready attachment to a strand. The simple structure consists only of a first end forming a hook, a second end forming a strand receiving portion, a middle portion between the first and second ends, and a generally T-shaped projection formed from the middle portion for friction wrapping of a strand to the structure. The projection consists of a cross portion of the T spaced from and generally parallel to the middle portion, and a leg portion of the T interconnecting the cross portion to the middle portion. The leg portion is relatively short compared to the thickness of a strand to be received thereby so that a strand may be wrapped around the leg portion several times and tightly frictionally engaged by both the middle portion and the cross portion. The structure is formed by a continuous piece of metal bent to form the hook, strand receiving portion, and T-shaped projection, all of which structure are coplanar.

Abstract: A mother aircraft has a fuselage, and a releasable rocket mounted thereon for propelling it. The fuselage has an opening therein, and a cover for the opening movable between open and closed positions. A miniature rocket propelled aircraft is selectively mountable within the fuselage and on the cover when it is in its closed position. The rocket is selectively releasably mounted on the mother and miniature aircraft.

Abstract: An animated talking doll includes a doll torso and head which includes a facial portion manufactured of generally flexible material. A sounding mechanism within the doll provides various audible sounds to be produced as desired by the user. A manually operative drive mechanism is connected to the mouth area of the facial portion of the doll head for automatically moving parts of the face in a timed relationship to provide coordinated movement of the parts of the face with the sound produced by the sounding mechanism. A clutch mechanism permits operation of the sounding mechanism while not engaging the driving mechanism to provide operation of the sounding mechanism independently of the movement of the facial portion.

Abstract: A body for a figure toy has an internal chamber adjacent a wall of the body and an opening through that wall has a cylindrical edge bead constituting a pivot for a simulated limb. The limb has an arcuate portion in the chamber of the same sectional shape as the opening and a recess at the axis of the arcuate portion, which recess pivotally embraces the edge bead.

Abstract: An amusement device (10) to produce an audio output from an audio transducer (76), as well as a visual output from a plurality of light emitting diode elements (68, 70, 72, 74). The light emitting diode elements (68, 70, 72, 74) are intermittently lighted in accordance with a predetermined first frequency determined by a first photoresistor element (52). The first photoresistor element (52) includes a circuit coupled to a first oscillator circuit (20) which determines the first predetermined frequency of the visual output system (66) responsive to the amount of photons impinging on first photoresistor element (52). Correspondingly, a second predetermined frequency for audio transducer (76) is determined by second photoresistor element (82) which is coupled to a second oscillator circuit (22) for producing the predetermined second frequency.

Abstract: The present specification discloses an articulated figure comprising a plurality of body and limb components pivotally attached to each other and formed from flexible magnetic rubber of such a thickness that the maximum possible surface to surface contact can be achieved between the components and a metallic surface to which the figure is to be adhered. The components are connected by rivets passing with clearance through holes therein.

Abstract: A process for the production of vesicular-arbuscular (VA) mycorrhizal fungi comprises growing a VA mycorrhizal fungus on plant roots in nutrient film culture. The resulting mycorrhizal fungus infected plant roots are of value in producing a mycorrhizal inoculum, especially for incorporation into a plant growth medium to enhance the uptake of nutrient by plants grown therein.

Abstract: A solar panel device for use in combination with a window unit including a window frame and glass panels mounted in the window frame. The device is comprised of a shutter unit having one or more sets of horizontally and parallel extending tracks which are vertically spaced a distance at least equal to the height dimension of the window unit. The tracks extend parallel to the plane of the glass panel and beyond at least one of the side edges of the window unit. A laminate insulative shield is mounted in the track for movement between positions at the side of the window unit and in front thereof to block off the entirety of the glass panel. The laminate insulative shield includes a frame movably supported on the track and has an imperforate surface layer and an insulation material layer mounted side-by-side in the frame. The imperforate surface provides a rigidifying support for the rather fragile insulation material.

Abstract: A pivotal connection for hoods or covers of motor vehicles which includes a lever arrangement extending between a bracket which is integral with the vehicle and the hood or cover. A control device is provided for controlling a positioning of an edge of the hood or cover which is nearest to a pivot axis of the pivotal connection with a spring being provided for supporting a movement of the hood or cover into an open position. The lever arrangement includes a support arm rotatably mounted on a bracket with the support arm being connected with a track supporting the hood or cover. A link and two arm guide lever are provided so as to form with the track and support arm a four-bar linkage which undergoes a reversal in the course of a pivoting movement of the hood or cover by way of a lever articulated at a free end of the two armed guide lever as well as on the bracket.

Abstract: A safety door for buildings and rooms included two main sliding parts, a supporting column equipped with hinges and a door body supported by the hinges. The supporting column enters a first cavity with the fixed works (wall) at the side of the hinges during opening, the hinges remaining outside this cavity. The edge of the door opposite to that one which has the hinges thereon enters a second cavity in the fixed works (wall) opposite the first cavity during closing. A lock is installed in the main body of the door, this lock also entering the second cavity, only its keyhole or control member being accessible from the inside or outside, the accessibility being effected via slits in the fixed works (wall). The rest of the door is surrounded by a continuous frame lining the walls of the cavities.

Abstract: A mobile machine mounted on a track for advancement therealong for removing irregularities from the surfaces of the rail heads comprises a machine frame, a tool carrier vertically adjustably mounted on the machine frame and arranged thereon for guidance along a respective track rail, and a cutter head on the tool carrier. The cutter head has a cutting tool capable of machining the surface of the head of the respective track rail continuously upon advance of the tool carrier along the track rail.

Abstract: Apparatus for grinding a helical cutting surface on a flat cutting blade. Prior art grinders are complex, difficult to operate and expensive to use. The present grinding machine comprises a stationary support (74), a grinding arbor (76), an adjustable cam plate (78), a grinder carriage assembly (80), a grinder assembly (82), cam follower (112), mounted on the grinder carriage assembly (80), and a grinding stone (128) mounted on the grinder carriage assembly (80). When the carriage and the grinding stone are reciprocated along the axis of rotation of the grinding arbor the cam follower (112) contacts the lower surface of the cam plate (78) whereby the grinding arbor is oscillated about its axis of rotation and a helical cutting surface is ground into the blade (34).

Abstract: The invention comprises an improved ice skate grinding, sharpening and contouring machine. The machine includes novel means to accurately center an ice skate between the heel and sole struts in a movable holding fixture and means to select the best contour position on the blade as a function of intended skate usage. As an example, the best blade contour for a hockey forward requires a deeper grind below the forward strut than the contour for a hockey defenseman. The centering feature assures that the skate contour desired will be accurately ground onto the blade and pitched forward the desired amount. Means to adjust the blade position relative to the blade holding fixture for pitching are disclosed in one embodiment. In an alternative embodiment means for pitching the entire fixture as desired are disclosed. Figure skates can be advantageously centered and pitched as desired with the invention for accommodating the particular requirements of the figure skater.

Abstract: An idler drum mounted for rotation on one end of a swinging arm is arranged to engage opposite sides of a sanding belt and to tension it in opposite directions when the arm is swung oppositely to first and second positions; belt tracking mechanism including spring means acting to tilt the arm laterally in one direction and first and second adjustment screws each positioned and arranged to engage the arm when in one of its first and second positions to adjustably limit the tilting of the arm in the one direction or to adjustably tilt the arm laterally in an opposite direction.

Abstract: A grinding machine wherein a wheel support carrying a grinding wheel is moved along a straight path extending at an acute angle to an axis of rotation of a workpiece. For the subsequent simultaneous grindings of a cylindrical surface and a shoulder side surface perpendicular thereto of the workpiece, the position of a transverse table carrying the workpiece is adjusted in proportion to a designated finish diameter of the cylindrical surface. The position of a sizing device slidable in the axial direction of the workpiece is also adjusted in connection to the positional adjustment of the transverse table, so that a pair of feelers of the sizing device are engaged with the cylindrical surface at a position which is spaced by a designated distance from the shoulder side surface.

Abstract: A traveling tool carrier is provided for severing the heads of railway spikes to facilitate the removal or replacement of the rails from the railway ties and bed. The traveling tool carrier includes a platform that is mounted for rolling engagement on the rails and has a saw support assembly mounted thereon in suspended relation. A saw that is formed as part of the saw support assembly is operated to engage and sever the heads of the railway spikes to provide for the convenient removal and replacement of the rails. The saw support assembly is both horizontally and vertically adjustable on the platform to locate the saw in the required position for severing the spike heads.

Abstract: The leading and lower cutting edges of a reciprocating cutting blade on a sheet material cutting apparatus are sharpened by elevating the blade from a cutting region proximate the sheet material supporting surface of the apparatus to a sharpening region above the cutting region and reciprocating the blade within the sharpening region. The apparatus includes two sharpening wheels mounted on a pivoted yoke and supported at opposite sides of the blade. One of the sharpening wheels is biased toward the blade to bring a face of the one wheel into sharpening engagement with one side of the leading cutting edge of the blade.

Abstract: Apparatus is provided for setting up and collapsing long rows of seats for stadiums or auditoriums, wherein each seat is provided with gravity counter-balancing spring means such that setting up or collapsing an extended row of seats may be done from one end of the row with a minimum of distortion along the row or force required. Provision is made for automatic operation by means of a small electric motor which may be remotely controlled. Additional provision is made for locking each set of an extended row of seats in either the set up or collapsed positions and for unlocking them in response to the initial action of means for changing the seats from one position to the other.

Abstract: A manway cover is formed using two like door panels made of lightweight, corrosion-resistant material which are hand operable from either side of the manway and can be installed without tools.

Abstract: A roof truss is made of unitized wooden frame elements comprising a pair of centrally interconnected upper chords which are joined near their outer ends by a horizontal lower chord which is discontinuous near each end thereof. Vertical risers interconnect the lower chord on both sides of each discontinuity with the upper chord to form post-receiving pockets near each end of the lower chord. These pockets are preferably backed up by a prenailed gusset on one side of the truss. This roof truss is combined at the building site with a lower section comprising a floor truss having a vertical wall-forming stud at each end thereof to provide a unitized truss frame.

Abstract: A modular building system for residential and light commercial construction is disclosed in which the exterior walls and , optionally, the floor, ceiling, roof and interior walls of the structure comprise a series of like prefabricated rectangular or square panels and subdivisions thereof. Interposed between adjacent panels are relatively thin metal fins somewhat wider than the thickness of the panels so that portions of the fins project beyond the surface of the panels. Within the panels are a plurality of horizontal passages, preferably uniformly spaced, which align with holes in the fins and like passages of adjacent panels. Rigid load transferring members, some or all of which are hollow, are snugly fitted into holes in the fins and extend partially into and snugly fit the aligned passages of the panel on each side of the fin.

Abstract: A multi-storey building construction utilizing prefabricated metal panels of tubular construction which can be erected at the job site by unskilled labor and adapted to support vertically spaced-apart floors, whereby the plurality of floors are separated by parallel rows of walls, each wall comprising the tubular metal panels. Each row of walls is in vertical alignment but not in direct contact with corresponding rows of walls situated on vertically adjacent floors, and each vertically adjacent row is interconnected by high-tensile strength threaded fasteners rigidly interconnecting the upper and lower chord of each panel to an adjacent chord of a vertically adjacent panel. The rows of vertically interconnected prefabricated metal panels provide effective continuous lightweight shear walls extending from the foundation of the building to the roof. The shear walls support loads imposed on the building and provide stiffness to the building to resist natural forces which otherwise tend to overturn the building.

Abstract: An improved anchor is provided for use with a mobile home having an underframe with an I-beam and wherein the mobile home is mounted above a base. The anchor comprises a pair of spaced clamping elements, each clamping element having an upper flange engaging portion for engaging the I-beam and a lower downwardly depending portion. One end of a chain is positioned between the downwardly depending portions of the clamping elements while a clevis is inserted through registering apertures in the downwardly depending portions and also through a link of the chain to thereby secure said end of the chain to the clamping elements. The other end of the chain is attached via a turnbuckle to the base.

Abstract: A decorative soffit system for mounting on the bottom of vertically disposed ceiling tile to enclose a projection depending from the ceiling as disclosed. The soffit system having a U-shaped channel member adapted to rest on an inverted-T runner and said U-shaped channel member having a resilient spacer therein to hold a vertically disposed ceiling tile against one side thereof.

Abstract: There is disclosed a panel construction which is useful for overhead doors where the door is supported at side bearing points and is supported, when open, in an overhead, horizontal position. The door is formed of a core having a honeycomb structure which is defined by a plurality of parallel strips of sheet material, each formed into a sinuous path and bonded to immediately adjacent strips at its outwardly bowed extremities, the assembly of strips of sheet material thereby providing a honeycomb or reticulated core structure. The core is aligned in the door with the strips of material extending across the width of the door. The door is provided with covering sheets which extend over the opposite sides of the honeycomb core. The covering sheets are bonded securely to the edges of the strips of sheet material of the honeycomb core by adhesive material which, preferably, has some resiliency.

Abstract: In a vacuum packaging machine having a forming station and an evacuation and sealing station, wherein each station has a chamber made of an upper and a lower part, and each part comprises a base portion (top cover or floor, as the case may be) and four upstanding walls, one or both of said chamber parts is made from material having an appropriate cross-sectional shape, preferably U-shaped, forming the base portion and opposite side walls, the front and rear walls being secured thereto in the form of covers. The cross-sectional shape may be double U-shaped, providing accommodation for connections for chamber supply requirements (vacuum, air, power). Also the cooling plate for the lower part is secured on the under-side of the floor of said part and mounts it on the means for imparting chamber opening and closing movement to the lower part, while the cooling plate for the upper part is inside the chamber, on the under-side of the top cover.

Abstract: Article packing or unpacking apparatus, including two correlated driven conveyors, the first for articles and the second for moving cases through a fixed course having a horizontal section and with both conveyors having fixed orbits, the article conveyor being in a vertical plane above the horizontal section of the second conveyor; and article grippers are positioned by carrier bars engaged with the article conveyor, which grippers depend from the carrier bars in a lower reach of such article conveyor. A pair of control arms are individually secured to each carrier bar at different ends thereof to engage guides as the article conveyor is moved downwardly towards an inflection area so that the article grippers are presented on vertical axes as they are moved into, along with cases moving through the horizontal section of the case conveyor fixed course.

Abstract: A thermoplastic film package having a plurality of tightly held articles, such as beverage bottles, is provided with a thermoplastic film handle and with an upper surface permitting opening of the package in a manner which facilitates removal of all or a portion of the articles from the package and return of articles to the package. The positions of attachment of the handle to the package in relation to the opened upper surface of the package enable the handle to assist in maintaining the integrity and usefulness of the package after it is opened, even though it is made of thin thermoplastic film. The opened package is thus suitable for carrying all or only a portion of the contents by using the handle. The end portions of the handle can be attached to the package by a process involving preliminary tacking and subsequent heating by contact with a hot gas in a film-shrinking operation.

Abstract: An apparatus receives empty bins and loose articles of random size and shape, such as apples, to be stored within the bins at a fill station. The articles are delivered to an inclined conveyor which has a lower end adjacent to a horizontal conveyor with a stop roller being positioned between the conveyors. When the articles have collected on the inclined conveyor a predetermined distance up the incline, a drive is actuated which simultaneously moves the inclined conveyor upwardly and moves the horizontal conveyor away from the inclined conveyor while rotating the stop roller to permit the articles to move from the inclined conveyor to the horizontal conveyor. This conveyor motion causes the articles to gently cascade down the incline in spread out fashion so that they are transported toward the end of the horizontal conveyor remote from the inclined conveyor and across the entire breadth thereof.

Abstract: A sweet-forming and wrapping machine includes feed rollers for feeding a rope of candy to a cutting mechanism and mechanism for transferring sweets cut from the leading end of the rope to a wrapping wheel, a wrapper being fed into the path of transfer of each sweet to the wrapping wheel. A detector operates in response to failure of the wrapper feed to stop the machine and also to divert the rope instantaneously out of its normal path of travel towards the cutting mechanism.

Abstract: Apparatus is disclosed for automatically stacking a plurality of trays containing comestibles such as fruit or the like into packages such as boxes of the like. Trays are synchronously supplied via an incremental belt to a tray stacking portion, where the trays are nested one atop the next. The stack of nested trays is then deposited on a counter-weighted drop shelf situated within the package. The weight of the trays on the drop shelf overcomes the inertia of the drop shelf and its counterweight such that the stack of trays are smoothly lowered into the package or carton. The tray stacking portion is adjustable to permit automatic packaging of different size fruit.

Abstract: In an infeed housing for a harvesting and threshing machine there is provided an improved sensing bar design that incorporates an inclined section into the bar to increase the percentage of impactions likely to occur by rocks and other non-frangible objects thereagainst as they are transported upwardly through the infeed housing. The sensing bar is also mounted to the bottom surface of the infeed housing in an improved acoustically isolating manner to decrease the noise level to which the sensing bar will be subjected during operation.

Abstract: A harvester for green tomatoes growing on vines in a row having a frame mounted for travel along such a row, a knife borne by the frame to sever such vines in the row, a conveyor for elevating the severed vines in the frame, an aqueous bath, a vibrating conveyor above the tank adapted to receive vines with tomatoes adherent thereto from the elevating conveyor and to shake tomatoes from the vines for descent into the tank, a straining conveyor in the bath adapted to strain tomatoes from the bath and to elevate them therefrom, and a source of air under pressure directed at tomatoes removed from the bath to dry surface moisture therefrom as well as a method for harvesting such tomatoes including severing the vines from the ground, shaking the vines to dislodge tomatoes therefrom for gravitational descent therefrom, catching the tomatoes in an aqueous bath, circulating water in the bath to wash the tomatoes, removing the washed tomatoes from the bath, and subjecting the tomatoes to an air blast to dry surface moi

Abstract: The method of balancing a changing load of a strip roll orbiting about an axis in a strip winding machine comprises the steps of measuring the changing diameter of the strip roll, converting the measured change into electrical control pulses fed to a reversible variable speed motor moving a counterbalancing weight orbiting about the axis at the other side of the strip roll.

Abstract: Apparatus and method for facilitating maintenance of a data system gathering information regarding the operating conditions of ring spinning machines in a textile mill wherein at least one traveling unit, supported for travel along a predetermined path for traversing one or more ring spinning machines, carries detectors for monitoring ends of strand material normally being formed by traversed machines, additional sensors are provided on each machine for signalling operating characteristics of the machines, and processors operatively communicating with the sensors and responsive to signals from the sensors determines from such signals the operating conditions of respective ones of the machines. In accordance with this invention, malfunctions of defined portions of the data system are identified and an output display of information characteristic of the nature and machine location of malfunctions is generated.

Abstract: Apparatus and method for facilitating efficient management of manufacture by ring spinning machines in a textile mill through the use of a data system wherein sensors are provided on each machine for signalling operating characteristics of the machines, and processors operatively communicating with the sensors and responsive to signals from the sensors determine from such signals the operating conditions of respective ones of the machines. In accordance with this invention, an input device permits entering a request for display of information characteristic of selected individual operating conditions of selected individual spinning machines, with an output device then producing such display.

Abstract: A bobbin doffing and donning method and apparatus are disclosed, wherein a stop is selectively projected into a path, along which an engaging member, mounted on a suitable portion of a power transmission mechanism structurally associating a doffing bar with a piston and cylinder assembly for tilting the doffing bar, is moved by the piston and cylinder assembly, to allow the engaging member to pressure contact with the stop thereby stopping the doffing bar at an intermediately tilted condition under which the doffing bar can operate on bobbins temporarily placed on a refuge support positioned between a succession of spindles and a bobbin conveyor both arranged along the side of a spinning machine.In order to release the doffing bar from the intermediately inclined condition, fluid is supplied into the piston and cylinder assembly so as to temporarily move the engaging member in a direction in which it disengages from the stop and thereafter the stop is moved out of the path of the engaging member.

Abstract: A supersonic jet engine capable not only of developing sufficient power to accelerate up to supersonic cruise and maintain efficient operation at supersonic cruise, but also arrange to cruise at subsonic velocities with a relatively low specific fuel consumption. The engine is provided with a variable bypass passageway downstream of the compressor. Flow into the bypass passageway is controlled so that during low power setting the bypass passageway is closed so that all the gaseous flow is directed through the turbine. During higher power settings, the bypass passageway is opened to the extent that a selected portion of the gaseous flow is directed through the bypass passageway to bypass the turbine, so that the corrected flow to the turbine remains substantially constant for both high and low power settings of the engine.

Abstract: This control serves to optimize thrust during steady state and transient operation modes of a turbofan engine of the mixed flow type by adjusting or trimming the exhaust nozzle area as a function of fan pressure ratio and fan rotor speed and by adjusting or trimming the core engine fuel flow as a function of fan rotor speed and/or turbine inlet temperature. The control serves to enhance stability by assuring airflow in the engine and its inlet is within a given value avoiding inlet buzz and high distortion to the engine and avoiding even transient operation in conditions that might cause compressor flow instability or stall. Fuel flow is adjusted or trimmed as a function of fan rotor speed or turbine inlet temperature limits depending on which is calling for the least amount of fuel.