Abstract: Burrs are removed from workpieces by cold embrittlement in an axisymmetrical container having a rotatable bottom with stationary sides and with the liquefied gas being supplied along the axis of rotation of the bottom. The rotational axis is inclined 5.degree. to 25.degree. with respect to the vertical and the bottom wall is conical with a cone angle of 130.degree.-170.degree..

Abstract: A method and apparatus are provided for making a cable particularly well suited for reinforcing elastomeric articles such as belts and tires for motor vehicles. A plurality of metallic filaments are bundled together and helically wound by passing the bundle over a deflecting edge without twisting the filaments around each other. One or more wrapping filaments are then passed over a similar deflecting edge to pre-form the wrapping filament into a helical shape. The wrapping filament is then wound about the bundle while maintaining the hand and pitch of the pre-formed helical shape of the wrapping filament to correspond to those of the filaments of the bundle. The apparatus provided for practicing the method has a horizontal rotor which is driven about a spindle and a plurality of spools independently suspended for feeding filaments to be cabled to the rotor.

Abstract: An automatic machine for magnetic abrasive polishing of internal rotational surfaces and especially internal race-ways of anti-friction bearings through a rotating magnetic indicator and ferromagnetic powder including a rotating charging device connected to a rotating table and adapted to follow various working positions, with chucks located on the table for chucking the work pieces and including independent rotation and electromagnetic heads as well as a removing device rotating synchronously with the charging device.

Abstract: A table top sanding device adapted for accurately sanding surfaces of objects such as wooden boards and the like including a platform member supported in an operative position, said platform member having a round opening therein, a motor having a motor shaft extending therefrom which is positioned on one side of the platform member with the shaft extending substantially in axial alignment with the opening, said shaft having an end portion located adjacent to the opening, a disc-like sanding member positioned in the opening and attached adjacent to the end portion of the motor shaft for rotation therewith, and structures for relatively rigidly supporting the motor and the disc-like sanding member including parts which can be adjusted to reposition the motor to enable the disc-like sanding member to be adjusted to a desired operative position in the opening.

Abstract: A marginal floor brush spacedly surrounding the rim of a chambered sanding machine base. The brush meets the floor and confines wood dust developed by a rotary sanding unit in the base. The dust is drawn from under the brush by a vacuum unit in the machine. This is facilitated by disposing the brush floatingly free of the machine to stir up and separate the dust particles and leave the floor clear of dust as the machine moves on.

Abstract: A workpiece transporting structure for use with a cylindrical grinding machine having a workpiece clamping assembly, comprising means for delivering workpieces to the clamping assembly including a plurality of laterally spaced workpiece supports, lift and carry means for sequentially advancing supported workpieces to the forwardmost workpiece support, a loading arm having a workpiece holder displaceable from a first position to a second position whereat a held workpiece can be clamped by the clamping assembly, the holder, located at the first position, comprising the forwardmost workpiece support, and means for removing workpieces from the clamping means including a second plurality of laterally spaced workpiece supports, lift and carry means for sequentially advancing workpieces from the rearwardmost workpiece support of the removing means, and unloading arm having a workpiece holder displaceable from a first position to a second position whereat a workpiece clamped in the clamping assembly can be held, the

Abstract: A method for removal of undesirable surface material from a casting employing a water abrasive jet operating at low pressure, i.e., 8,000 psi (55.degree.kg/cm.sup.2) -- 12,000 psi (850kg/cm.sup.2).

Abstract: A sanding shoe for a portable sanding tool, the sanding shoe having a flexible pad for backing a sheet of sandpaper, a flexible supporting plate moulded into the pad, and lever actuable clamping jaws removably inserted in interlocking relation with the support plate for clamping the ends of a sheet of sandpaper in place.

Abstract: A plurality of telescoping tubes form a rail assembly which is pivotally connected at its lower end to a post, a sleeve is slidably received in the uppermost tube which is provided with an upper stop ring and a lower ring to limit the motion of the sleeve. A link is pivotally connected between the sleeve and an upper post. Thus, as the seating system is extended for use or retracted for storage, the handrail also extends and retracts. A stop element on the link limits the position of the link in the extended position so that the axes of upper and lower rail assemblies are aligned. In a preferred embodiment, the posts are inclined forwardly so that the rail assemblies are vertical in the storage position.

Abstract: A building construction comprising a foundation, a plurality of vertically extending truss members and a plurality of roof frames. Each truss member comprises spaced channels with alternately extending struts connected between the channels. Each roof frame is associated with opposed pairs of the upright truss members and includes vertical legs comprising truss members aligned with the upright truss members and horizontal truss members of substantially identical construction extending between the upright legs.

Abstract: A reinforced concrete floor is constructed from a continuous slab defining a major and planar supporting surface. The continuous slab is folded at at least one beam defining path across its planar supporting surface and preferably includes a right angle grid of such folds with downward peripheral folds at the slab edges and downward V-sectioned folds to interrupt the major and planar supporting surface. By maintaining a constant vertical slab thickness and keeping the angle of the folds between 30.degree. and 60.degree. with respect to the major supporting surface, it is possible to nest and even construct a continuous stack of floors having identical overlying structural members and dimensions, such as the structurally and dimensionally repetitive overlying floors of a high-rise building.

Abstract: A bank window frame structure wherein bullet-proof glass is installed from the outside of a bank building wall in which the frame is located, and the glass is clamped in the frame in a weather-proof manner with a sealed joint all around by clamping means accessible only at the inside of the building wall. All sill, head and side frame members are composed of cut lengths of formed channel-shaped, sheet metal, base and support members secured together in box-like cross-sectional arrangement. The glass is installed from the outside of the frame, with sealing gasket means around its perimeter, and is retained by a formed sheet metal retaining channel member which compresses the sealing gasket means to provide the weather-proofed joint. The clamping screw means for the retaining channel is accessible only at the inside of the frame.

Abstract: An improved method and structure for forming wiring channels in a concrete floor. Parallel trenches are formed in a concrete floor slab when the slab is poured. A metal cover placed over each trench has a metal U-shaped channel attached thereto for dividing the trench into at least two and preferably three separate wire raceways with the center raceway completely shielded by the channel and cover. Access boxes are selectively positioned over knockouts in the cover plate. Metal channels are positioned to extend perpendicular to the trenches for forming main distribution ducts. A concrete surface is then poured over the slab to extend flush with the tops of the access boxes and the main distribution ducts and a cover plate is attached to enclose the main distribution ducts. The resulting floor structure has embedded therein parallel wiring raceways spaced across the floor with spaced accesses into each raceway and main distribution ducts interconnecting the parallel raceways.

Abstract: A wall construction includes a plurality of panel members and joining elements therefor. The panel members are provided with spaced apart inside and outside face elements and edge members along opposite longitudinal sides for interconnection with adjacent panels or corner posts. Foamed in place insulating material is provided between the inside and outside face elements of the panels between the edge members. The outside face elements of the panels are formed by modular width members of weather resistant sheet material having a plurality of spaced apart longitudinal grooves in the outer surface. Tongue and groove means along longitudinal edges of the face elements are interfitted with tongue and groove means in the panel edge members in a manner forming a groove on the outside face of the panel similar and parallel to the grooves in the outside face elements. Edge members of the panels include an outside element, an inside element and a glazing pocket formed therebetween.

Abstract: A pre-burned ceramic cap cooperating with a notched metallic stud to anchor ceramic fiber insulating material in the interior wall of a furnace. The cap is provided with a slotted collar internally of the cap, so that on rotation of the cap surfaces on the collar engage surfaces on a notch to lock the assembly in position and to protect the metallic parts of the assembly from the deteriorating effects of combustion gas contact therewith.

Abstract: The present invention provides a building panel connector assembly operable to secure prefabricated building panels to one another while permitting rectilinear movement of the panels in response to natural conditions, for example. A footing mounting means is operable to secure the building panels to a footing for example.

Abstract: A capping channel for a glass sealed unit adapted to be surrounded by a layer of polysulphide sealant. The channel comprises a rigid U-shaped member made of a thermally non-conducting polyvinyl chloride compatible with the polysulphide sealant. The member comprises ribs projecting from the inner surface of its base and adapted to penetrate in the sealant for increasing the retention of the channel to the unit. The ribs are set by pairs to form a V-shape and are provided with a lip extending from the free edge of the ribs, each lip of the pair being directed towards each other.

Abstract: A metallic fastener connects metallic webs to a truss chord member. The fastener comprises a head overlying a pair of web ends and a tubular shank extending through openings in the web ends. The shank has a deformed, radially outwardly flaring end portion which compressively deforms the chord wood immediately surrounding the flare.

Abstract: An arch beam comprising a tied arch with a low modulus filler between the compression and tension elements. A filler and wearing surface are used over the arch to form a horizontal surface and to distribute the load where desired. The filler serves to provide elastic support for the low rise arch compression member, thereby greatly increasing its buckling resistance.

Abstract: A multi-purpose, extruded metal, joist-like structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby it may be clamped to various types of support members either in the form of lengths of channel members or lengths of I-beams to the end that it assumes a proper operative position within a concrete wall or slab form installation.

Abstract: An object to be packaged is suspended in an upwardly open mold whose walls are formed with an array of throughgoing perforations and lined with a gas-pervious sheet. A similarly perforated and lined cover is placed over the mold and foamable polyurethane material is poured into the mold through an elastic hose-like conduit connected to a filling aperture on the mold cover. This material expands within the mold completely filling the space around the object and thereby forms a fitted package around the object. The gas-pervious sheet material lining the mold may be a plurality of synthetic-resin panels formed of parallel inner and outer walls spaced apart by parallel webs defining between the inner and outer walls a plurality of parallel passages. These inner and outer walls are formed with throughgoing perforations opening into the passages so that as the synthetic-resin material expands it passes through the perforations on the inner walls only and projects into the passages.

Abstract: A packaging machine for loading trays with delicate articles such as cakes or tarts comprises a first conveyor for conveying a stream of the articles to be loaded, a plate pivotally mounted at the end of a first conveyor to receive articles from the first conveyor, a stop above the plate to locate on the plate an article fed by the first conveyor, a pusher mounted above the plate and on the same side of the stop as the first conveyor, a second conveyor beneath the plate for conveying the tray to be loaded and a mechanism for moving the plate the stop and the pusher. In use the packaging machine is arranged so that articles from the first conveyor move in turn under the pusher and on to the plate where they are located by the stop, the plate is then tipped, the stop moved away from the article and the pusher moved downwards and away from the first conveyor to push the article on the plate down the plate past the stop and off the plate into a tray on the second conveyor.

Abstract: The filling head detection device has a stop member at its downstream end for each row of articles supplied thereto, a conductive metallic flag pivotally positioned on the stop member and normally projecting upstream therefrom and being movable to a retracted position by an article moved along the filling head into engagement with a stop member, each flag having a hole therein with such holes being aligned transversely of the filling head. An electrical contact member extends through the holes in the flags and normally is in contact with a wall surface thereof, but with article moving into engagement with the stop members in the individual rows moving the flags to retracted positions to break their electrical contact with the contact member so that operative conditions in an electrical system connecting to the contact device can be varied.

Abstract: A packaging machine into which goods may be loaded and which can wrap the goods so loaded, by operation of its various pack-forming elements according to a predetermined sequence, has drive means which are essentially mechanical in character, the sequence being automatic and controlled principally by rotatable elements all deriving power from the same power unit. In one form, the machine is constructed so as to be suitable for making a succession of packs all of the same length, while in another form it is adapted for making packs which vary in length between one pack and another. In its latter form, the machine is particularly suitable for use at check-out points in consumer product selling establishments such as supermarkets.

Abstract: An apparatus for capping and uncapping containers includes a framework for storing screw-on caps in a number of stacked columns. A guide for aligning containers, such as bottles or vials held in a standard holder, consists of two members movable with respect to one another and defining a number of openings of adjustable size into which the containers are to project so as to become aligned with the stacked caps. An endless, cogged belt is operatively positioned within grooves formed on longitudinal surfaces of the members, portions of the cogged belt projecting into the openings defined by the members into which the containers are to project. This cogged belt in operation contacts the exterior surface of screw-on caps and turns them with respect to the threaded necks of the containers on to which they are to be placed or from which they are to be removed. The two members can be moved apart relative to one another in order to allow the necks of the containers and the caps to be positioned within the openings.

Abstract: A means on a packing machine for closing containers with lids provided with complementary press-button snap-lock means, of the kind whereby the containers are advanced one after one on a conveyor belt or the like. Above said belt is arranged a rotor wheel provided with compression means for successive locking of said press-button means during the passage of the container on the belt. The compression means is pivotably suspended in the rotor wheel about a transverse axis parallel with the rotor wheel axis operative to that said compression means may pivot relative to the wheel and thereby be subjected to positional adjustment relative to the press-button means prior to and during the locking operation of same.

Abstract: A rotary lawn mower having a housing with a continuous side wall and an open bottom. A motor on the housing drives a rotating cutting blade. The housing has a top with a front portion provided with an arcuate discharge opening. A discharge chute secured to the housing extends upwardly and in a rearward direction over the top of the motor. The discharge chute has a downwardly projected neck having an exit opening for discharging grass clippings and particulate materials into a disposable bag. A holder attaches the upper end of the bag to the neck. The lower end of the bag rests on a platform located between the rear wheels of the mower.

Abstract: An agricultural machine for picking up and chopping stalks and like materials has an intake unit for materials to be chopped which includes a first housing and a material pick-up device, a chopping unit for chopping the picked-up material which includes a second housing and a chopping device mounted therein, and a quick-release coupling arrangement which connects the housings with one another.

Abstract: A rotary mower has a cylindrical drum rotatable about its upright vertical axis and provided at its lower end with a downwardly and outwardly flared skirt provided on its lower side with radially projecting crop-cutting blades and on its upper side with crop-displacing ridges. A windrow-forming deflecting plate is fixed on the support of the mower adjacent the drum and has a lower edge parallel to the upper surface of the skirt and forming on juxtaposition of this lower edge with the leading edge of each of the crop-displacing ridges an outwardly open acute angle. The ridge may be pressed into the skirt or constituted as a bar secured to the top thereof and has a circularly arcuate leading edge that passes under the straight lower edge of the deflecting plate.

Abstract: An integrally molded belt with at least one working element attached thereto by means of at least two spaced connectors transversely aligned in relation to the belt.

Abstract: A rear shield for rotary lawn mowers comprising a body made of strips of rigid and flexible plastic secured together longitudinally in edge to edge relation. Means are provided for suspending the body at the rear of the mower with a rigid portion gravitationally contacting the surface being mowed.

Abstract: Process and apparatus for producing highly elastic crimp yarn by the draw-texturing method using a false-twister, in which the filament speed exceeds 300 m/min and in which setting is carried out at constant filament tension by brief contact of the filament with a heating rail with roughened contact surface and a length of at most 400 mm.

Abstract: By combination and interaction of aerodynamic and mechanical forces, textile fibers are removed from a single source, transported, collected, blended, subdivided, and distributed in equal amounts to multiple remote locations, whereby the fibers are continuously assembled into uniform ribbons for subsequent textile processing or supplied directly to open-end spinning units.

Abstract: Apparatus for surveying the condition of roving is mounted on an automatic yarn knotting device movable along a spindle row in a textile machine having a drafting device for roving allocated to each spindle. When a roving breakage is indicated, the knotting device stops at the appropriate position and a first detecting device on a pivoted lever is moved to a position in which it checks the presence of roving passing through the drafting device. If there is no roving due to exhaustion of supply, no knotting is effected, but if roving is present the knotting device is prepared and a second lever moves a second detecting device to two output rollers for delivery of roving from the drafting device. If this second device detects no wrapping of roving on one of the two output rollers, the knotting process is initiated.

Abstract: A bearing for a spinning or a twisting-ring as used in the textile industry. The bearing has a stator which is mounted on a spring loaded damper absorbing system which has different degrees of stiffness in two axes at right angles to each other. This is to hinder the development of "half-frequency" vibrations in the bearing.

Abstract: An electrically driven timepiece is provided with a single user-actuated h button for controlling a modulo-three counter, the counter being utilized to control display advancing pulses derived from an oscillator and frequency divider. In a first state, the counter controls the display advancing pulses to advance the display at a normal rate. In a second state, the counter controls the display advancing pulses to advance the display at a rapid rate to effect a time correction. In a third state, the counter blocks all advancing pulses whereby the display remains constant. This enables the user to restart the advancement of the display at a precise desired instant. In an alternative embodiment, means are provided within the timepiece for automatically advancing the counter from the second to the third state when the display is advanced to a reference position such as the zero seconds position.

Abstract: A control device for an electronic wrist watch to enable resetting of the display. The device includes a pushbutton switch providing a control signal to a memory device. The memory device is connected to a delay means which transmits the information from said memory device in synchronism with a clock signal to provide an output pulse or pulse train dependent upon the length of time for which the pushbutton is actuated.

Abstract: An electronic clock has a display which simulates the operation of one or more hour glasses. The hour glass display is simulated by the use of visual display elements, such as lights, which are made to appear to pass from the top portion of the hour glass display into the bottom portion of the hour glass display with the passage of time. Means are provided for resetting the hour glass display to put all of the display elements in their original condition and also for cascading multiple hour glass displays to give a visual indication of hours and minutes of time.

Abstract: A link drive chain repair tool includes a base plate upon which a pair of upstanding longitudinally aligned stud elements extend from its upper face. Clamping means depend from the lower face of the base plate for clamping of the base plate to a surface of the machine driven by the drive chain. One of the stud elements is threaded so as to receive a clamp nut thereon to receive the drive chain to the base plate. A pair of elongated link support members are positioned in spaced parallel relation on the upper face of the base plate to one side of the aligned stud elements so as to be adapted to provide lateral support for an adjacent pair of inner links of the drive chain during removal of a connecting outer link.

Abstract: An articulated bracelet comprises a chain of visible tubular links of oval section, adjacent pairs of which are connected by joining links hookably engaging in rectangular openings in the tubular links. Each adjacent pair of joining links are retained by mutual coaction of complementary hook-like end parts in a hollow element, whereby links can be added or removed by hand.

Abstract: The invention is concerned with a modular gas turbine engine assembly. The assembly includes a tubular case to which are assembled a gasifier module and a power output module. The gasifier module and the power output module are each slidably sealed to respective inwardly extending, generally removable flanges within the case. The gasifier module has a first tubular housing fixedly detachably attachable with a first end thereof adjacent a first end of the case with the axis of the first housing aligned generally with the axis of the case, a compressor generally within a second end of said first housing, a combustor generally extending outwardly from said first end of said first housing and a first integral shaft extending from the compressor to adjacent the combustor. A gasifier turbine extends generally outwardly radially from the shaft and has first blades positioned to be in the path of the exhaust gases exiting the combustor to drive the first shaft and thereby drive the compressor.

Abstract: A thrust augmentation technique wherein a primary gas stream is directionally switched at a high rate to produce flow discontinuities in the interest of increasing efficiency. Apparatus in accordance with the invention includes a fluidic switch, particularly a controlled expansion thrust vector control nozzle, which delivers a pulsating primary gas stream to an eductor or lift surface.

Abstract: A thrust reverser suitable for reversing the flow direction of the fan air of a fan jet engine is disclosed. The thrust reverser comprises a cascade section and a fan duct blocker section. The cascade section includes a series of cascade elements mounted in a side-by-side manner about a portion of the engine nacelle for rotation through an arc of 90.degree. about longitudinal axes lying generally parallel to the direction of fan air flow. Each cascade element includes an inner panel, an outer panel, and a series of vanes located between the inner and outer panels. Rotation is between a closed position whereat the inner panel forms a portion of the fan air duct and the outer panel forms a portion of the outer surface of the nacelle, and an open position whereat the vanes define passageways adapted to reverse fan air flow i.e., direct fan air flow back toward the front of the engine.

Abstract: In a mixed flow gas turbine engine of the type which includes an outer nacelle spaced apart from a core engine to define an annular bypass duct therebetween, a thrust reverse is incorporated into the outer nacelle immediately aft of a fan disposed in the inlet. The thrust reverser reverses the discharge direction of the airflow exhausted from the bypass duct thereby to develop reverse thrust. The unique design and location of the thrust reverser permits the use of an aerodynamically efficient and relatively easy to manufacture cylindrical structure immediately aft of the engine fan frame.

Abstract: A first cylinder of an engine is fed with a relatively rich air-fuel mixture during engine low load operation and with a relatively lean air-fuel mixture during medium and high load operations while a second cylinder of the engine is fed with only a relatively lean air-fuel mixture.

Abstract: A fence plate disposed in an intake manifold directs a rich mixture into certain cylinders, and a lean mixture into the others.

Abstract: A compressed air generating device for forklift trucks in which a main pipeline connected to the end of the lift cylinder air chamber branches into a high-pressure air pipe and a return pipe, selectively communicating with the main pipeline through a switching valve means. With the main pipeline switched to communication with the main pipeline high-pressure air pipe, during the descending phase of the piston, air is sucked through an air suction pipe attached to the main pipeline into the lift cylinder air chamber, and during the rising phase of the piston, the air in the air chamber is compressed and is sent into an air tank as compressed air.

Abstract: A tractor-implement hydraulic system having a valve interposed between a cylinder-piston assembly, a reservoir and a variable displacement pressure and flow compensated pump having compensating means is disclosed herein. The valve has a housing which has a bore supporting a valve spool and an inlet chamber and pressure chamber in communication with the valve bore with the inlet chamber being connected to the pump while the pressure chamber is connected to both the cylinder and the compensating means so that the cylinder and compensating means are immediately interconnected when the valve spool is actuated in one direction. The valve housing also has a return passage between the cylinder and the reservoir with a valve therein that normally blocks flow and is opened in response to movement of the valve spool in an opposite direction.

Abstract: A device for rotating a turbine, particularly during starting, comprises a positive displacement-type main oil pump which has a main pump suction which is connected to the discharge of a high pressure oil pump which also has a connection to supply oil to the bearings. An auxiliary oil pump is mechanically coupled to the high pressure pump and it is also hydraulically connected in series to the high pressure pump. When the pressure builds up between the high pressure pump and the main pump, the main pump may be driven as a motor by the high pressure pump to effect a turning of the turbine.

Abstract: A closed working fluid system for a regenerative Stirling engine is disclosed. The system employs double-acting pistons arranged with each low temperature (compression) space connected to one hot (expansion) space of an adjacent piston. The low temperature spaces are all connected to a reservoir system employing two separate chambers, one at a high pressure and another at a relatively low pressure. Control means select the reservoir for communication with the working system depending on the torque demand of the engine; the control means also permits fluid flow to pass from any one low temperature space to the selected reservoir when the pressure condition in the low temperature space exceeds the associated reservoir pressure.