Abstract: Apparatus for grinding coal to micron fineness having a grinding chamber with a grinding surface supported by a circumferential wall in the grinding chamber, a plurality of grinding rolls orbiting in the grinding chamber for grinding the coal, air supply bustle surrounding the grinding chamber, air flow restrictor means opening from the air supply bustle to the grinding chamber to create a back pressure in the air supply bustle for substantially evenly distributing the air supplied to the grinding chamber around the circumference of the grinding chamber, and wherein the restrictor means directs the air flow tangentially relative to the circumferential wall of the grinding chamber so that the coal particles are caught up in a cyclonic movement having a large initial horizontally directed force to maintain a body of coal particles in the orbit of the grinding rolls, which horizontal force gradually diminishes as the vertical force component of the air flow lifts the ground coal particles out of the grinding cha

Abstract: A machine for collating signatures has a pair of side-by-side gathering chains as well as feeding apparatus along the chains, with each feeding apparatus being adapted to open signatures and deposit them on the chain along that apparatus, so that the signatures accumulate on the chain in a saddle format. The compiled signatures are trimmed as they pass along the chain, and at the end of the chain they are discharged into a layup unit where they are turned from a vertical disposition to a horizontal disposition. The layup unit has at the end of each gathering chain a pair of high friction belts which come together at a nip into which the chains project the compiled signatures. The belts grip the compiled signatures near the folds in those signatures and move the depending portions of the signatures against and over a bar which deflects the depending portions laterally and into a horizontal disposition.

Abstract: A front wheel drive vehicle having a frame and an engine set transversely across the width of the frame, and an engine torque strut between the engine and the frame for resisting the torque reactions during engine acceleration and during vehicle forward and reverse operation, and for retaining the engine in a known position. The torque strut comprises a housing having one end pivotally attached to the engine, a piston rod at the opposite end pivotally attached to the vehicle frame, resilient means in the housing on opposite sides of a piston under a pre-load, hydraulic fluid in the housing on opposite sides of the piston, and flow control means in the strut for regulating the transfer of hydraulic fluid to opposite sides of the piston upon piston displacement in the housing, the flow control means and the resilient means damping the engine torque reactions.

Abstract: A transparency that is used in a flying spot scanner to generate imagery for simulated flight contains a rectangular center section and eight peripheral sections, four of which lie along the side boundaries of the center section, while the remaining four are at the corners of the center section such that their edges are contiguous to the edges of the side peripheral sections. Each of the nine sections is laid out such that corresponding terrain features lie along opposite margins. This coupled with the fact that all nine sections are identical enables all of the sections to blend together into a mosaic so that the section boundaries within the interior of the mosaic are barely, if at all, discernible. As a consequence, the terrain pattern along any boundary of the center section is repeated along the opposite boundary. A projected raster moves essentially within the center section in response to commands issued from a simulated cockpit.

Abstract: Service tool means for rack and pinion steering assemblies operably connected to the steerable wheels through tie rods extending from outer ball joints adjacent the wheels to inner ball joints connected to the ends of the rack. The service tool is made up of cooperating telescoped bodies having substantially matching slots, each ending in an enlarged notch, for allowing the tie rod and its attached inner ball joint to be passed through the slots and assume a position in the inner body where jaw means carried by each body adjacent its enlarged notch engage the rack and the ball joint for the purpose of relatively turning the ball joint while preventing turning of the rack.

Abstract: A cooling tower has hollow fill slats formed in a rectangular cross-sectional configuration from a suitable polymer. These slats are supported on polymer grids, each comprised of an upper section and a lower section which forms a downward extension of the upper section. The two sections for each grid have horizontal and vertical stringers which are arranged in rows and delineate rectangular grid openings through which the slats extend. The two sections overlap, and in the region of overlap the upper section on its horizontal stringers has knuckle-type connectors that interlock with horizontal stringers of the lower section such that the grid openings for the two grid sections are generally in registration in the region of overlap. The upper section also has alignment lips on some of the vertical stringers in the region of overlap, and these lips maintain the lower section properly aligned with the upper section.

Abstract: A cone-type rock crusher includes a base, a fixed shaft projected upwardly from the base, a rotatable member positioned around the fixed shaft, a generally conical crusher head positioned over the rotatable member, and a stationary crushing surface over the head. The rotatable member revolves on a first set of bearings including a tapered roller thrust bearing between the top of the shaft and the rotatable member, a tapered roller radial bearing between the side of the shaft and the rotatable member, and a much larger tapered roller bearing between the side of the rotatable member and a carrier that is fixed in position with respect to the base. Both radial bearings have their tapered rollers arranged in a single row with the large diameter ends of those rollers presented downwardly to facilitate seating the rollers and to permit easy assembly and disassembly.

Abstract: A machine for dislodging cans from a tightly packed bale of such cans has a cavity and an endless track at the bottom of the cavity. The bale is placed in the cavity and allowed to rest on the track. When the track moves, lugs which project outwardly from it, bite into the bale and strip cans from the bale.

Abstract: A highly compact oven for preparing barbecued foods on a commercial basis includes a cabinet having a vertical partition wall that divides its interior into an oven chamber and an equipment compartment, and a door which closes the front of the oven chamber. In addition, the oven has a rotisserie for supporting foods in the upper portion of the oven chamber, and this rotisserie is turned by a motor in the equipment compartment. A firebox in which wood is burned is located in the lower portion of the oven chamber to provide the heat required for cooking the food and the smoke for imparting the barbecue flavor to that food. Food on the rotisserie is shielded from the firebox by a baffle wall which extends across the oven chamber, yet has its margins spaced from the back wall and door, so that heated air and smoke circulate freely between the region of the firebox and the region of the rotisserie.

Abstract: Anchor fixture for dynamically stabilizing rock structure comprising a rock support mounted in a bore hole and cooperating with formable means placed in the bore hole to generate tension in the support and to exert compression in the rock structure for dynamically supporting the rock structure upon insertion of the rock support and rapidly developing radial loading forces in the rock and beyond the near boundary of the bore hole.

Abstract: Apparatus for processing coal to prevent the creation of extreme fines and to extract pyrites from the principal coal fractions in which there are two air circulating circuits having processing components which cooperate in their respective circuits to result initially in substantial extraction of fines in the first circuit while releasing principal granulated coal fractions and pyrites to the second circuit where specific gravity separation of the pyrites and principal coal fractions occur. The apparatus includes a source of drying heat added to the air moving in the circuits and delivered at the places where surface moisture drying is most effective. Furthermore, the apparatus is operated so as to reduce coal to a desired size without creating an excessive volume of extreme fines, to separate pyrites and hard to grind components by specific gravity in a region where fines are not present, and to use the extreme fines as a source of fuel to generate drying heat.

Abstract: This application relates to a method for attaching refractory ceramic fiber modules to steel furnace shells. The method allows much flexibility in the application of the fiber modules to the furnace and results in a less expensive and more efficient installation than current installation methods allow. The method involves the use of metal brackets welded to the furnace wall and having a loop on the free end to receive pointed steel rods which impale the modules to secure the same to the furnace wall.

Abstract: A machine for packaging small objects such as medicinal pills, tablets or capsules has a path along which a carrying strip extends, passing through various stations as it does. At the first station information is printed on the strip. At the next side-by-side pockets are formed in the strip. Then comes a loading station where the pocketed carrying strip passes over a track located between two trays over which are spread the small objects that are to be loaded in pockets. Here the strip also passes beneath a divider rail that extends longitudinally of the strip between the two rows of pockets in the strip to separate those pockets so that the small objects on the trays are easily manipulated into the pockets. The divider rail also keeps the carrying strip from lifting off of the track. Following the loading station a covering strip is directed over the carrying strip, and the covering strip is heat sealed to the carrying strip around the pockets in the covering strip at a sealing station.

Abstract: The printed ribbons in a high speed printing press are, while the press is operating at walk speed, directed onto a diverting conveyor prior to the forming board of the folder for the press, so that they do not pass through subsequent equipment which does not adequately handle the ribbons at walk speed. The diverting conveyor transports the ribbons away from the press and discharges them into a trash container, or at least allows them to accumulate where they will not interfere with the operation of the press or with pressmen working in the vicinity of the folder. By reason of the diverting conveyor, no pressman is needed to roll up the ribbons when the press operates at walk speed.

Abstract: A closed loop fuel feeding system for multiple direct fired burners in which a conduit system associated with a fuel grinding mill forms a closed loop for conducting the flow of fuel and air back to the mill in excess of the fuel and air not released from the conduit system to burners, ambient air inlet for admitting sufficient air to replace the air released with the fuel from the system, a back pressure configuration to assure uniform fuel to air density when released from the conduit system, and controls to regulate the rate of fuel supply with the rate of grinding and the quantity of air admitted to complete a combustible mixture of fuel and air.

Abstract: A burner for a cooking grill has upper and lower sections which are joined together to enclose a plenum for containing a combustible gas. The lower section has a peripheral wall containing apertures which enable the gas in the plenum to escape for burning outside of the burner. In addition, the lower section has a bottom wall provided with a hole, while the top section has a top wall provided with a recess located opposite to the hole. A short inlet tube, to which the combustible gas is supplied, extends through the hole in the bottom wall, and within the plenum segments of the tube are bent outwardly away from the tube axis in the form of tabs which overlie the inwardly presented surface of the bottom wall. These segments leave the tube with openings that permit gas to flow from the tube to the plenum.

Abstract: A post frame building utilizes wood posts or columns composed of upper and lower sections that are initially detached. The lower sections are set into the ground in the usual manner, and as a consequence, the top of each lower section is at a slightly different elevation. Each lower section bears a reference mark, which for all sections is located the same distance below the upper ends of those sections, and in addition after it is set into the ground, is provided with another reference mark. As to all lower sections these other reference marks are at the same elevation. The upper sections are precisely the same length, and each has a pocket opening out of its upper end. The upper sections are installed on their respective lower sections to complete the columns, but only after leveling blocks are placed in the pockets of the upper sections. The leveling blocks are all initially the same length, that length being less than the depth of the pockets.

Abstract: Tie rod ball joint end connection for a vehicle rack and pinion steering system in which the ball joint end connection is characterized by the housing having a bearing surface in one open end to receive the ball head of the tie rod, a threaded opposite end and deformable means positionable in the housing from the threaded end for exerting a preliminary pre-load on the ball head suitable for establishing the initial assembly thereof, and for transmitting to the ball head the final pre-load when the rack is threaded into the threaded end.

Abstract: Apparatus for preparing fuel for delivery to a boiler or place where it is burned in which a grinding mill and a particle sizing classifier are operated to deliver fuel of a substantially uniform size, and means to operate the mill and classifier independently of the rate of supply of the fuel but in response to the differential pressure of the fluid bed depth in the mill.

Abstract: A vented cowl variable geometry inlet for aircraft which provides means to permit starting an overly contracted inlet by dumping sufficient air to obtain the start, as well as to dump air when no thrust is required, but without loss of combustion, and to effect operation of an aircraft of piloted or missile character in a regime where reduction in fuel flow and thrust is advantageous.