Abstract: A spherical bearing comprising an outer member having a hole extending from side to side, at least two bearing inserts abutting the surface of the hole, the outer surface of said inserts being concave and spherical so that they provide constricted portions at each side of the outer member, the outer member also having a keyway extending axially from side to side; a key in the keyway substantially co-extensive with the keyway, the key also having a concave and spherical top surface corresponding to the outer surfaces of the hole so that the key has shoulder portions corresponding to the constricted portions of the outer member; and a partially spherical inner member, the inner member being held in the outer member by impingement of the spherical surface of the inner member against the constricted portions of the outer member and the key being held in the outer member by impingement of the shoulder portions of the key against the spherical surface of the inner member, the inserts being held in the outer member

Abstract: A self-aligning bearing assembly comprising an outer member having a concave inner surface and an inner member carried within the outer member and having a convex outer surface generally complementary to the concave inner surface, the inner member being a deformable plastic member, deforming means to vary the tolerance between the inner and outer members.

Abstract: Six-sided cubic blocks with interfitting and repelling sides have selected representations on each side according to predetermined patterns of relationships between side structures and representations. The blocks are assembled in horizontal and vertical arrays to achieve numerical goals of representations on faces of the arrays. Two persons work on the vertical array from opposite sides seeking to attain their own goals, while preventing opposite persons from attaining their goals.

Abstract: A seat arm adjustment mechanism has a stop block attached to the back of a seat, and a shaft slidably mounted in a housing on the arm bears against the stop block. A locking arm is slidably mounted on the shaft within a slot in the housing. A spring, disposed in the housing and positionally held by a screw, effects a biasing force against a face of the locking arm. A raised portion of the locking arm bears against a face of the housing. A second spring mounted on a screw between an end of the shaft and a bracket moves the shaft toward the stop block. An elongated rod is slidably mounted on the arm to bear against a face on the locking arm opposite the first spring. Pushing the rod against locking arm allows the locking arm to slide along the shaft, while the arm is being moved to a new selected position. The arm may be raised and lowered, whereupon it stops at the last selected position.

Abstract: A method of manufacturing a spherical bearing rod end having an outer race member, an intermediate member of yieldable material within and supported by said outer race member and an inner race operationally supported by said intermediate member comprising preforming a rod end blank having a ball-like section at one end thereof, flattening the spherical section to form two enlarged faces, each face having an inwardly disposed annular dished portion whereby the material flows uniformly to the outer periphery of the faces to form a uniformly cold formed annular area, removing the inwardly disposed annular dished portion to form a bore through said faces thereby leaving said uniformly cold formed annular area to serve as the outer member, inserting in said bore said intermediate member and said inner race member, interlocking with mechanical interlocking means said intermediate member and inner race member within said bore to effect the bearing support of said inner race member within said intermediate member.

Abstract: A Pneumocystis carinii antiserum conjugated with fluorescein isothiocyanate composition, its use being the detection of Pneumocystis carinii organisms and the method of making this composition using an enzyme purifying technique.

Abstract: A container has one or more openings which extend into the container down elongated passageways. The passageways have needle prodders mounted along sidewalls to discourage rodent retreat once a rodent has entered the passageway. The interior ends of the passageways have doors with small holes for permitting rodents to smell enticing substances on the interior of the container, which doors are structured with lengths greater than the height of the passageways such that the doors extend into the interior of the container at an angle and can only be opened into the interior. The doors have needles on interior sides to keep rodents captured therein away from said doors. Sidewalls of the passageways extend into the interior of the container for keeping captured rodents away from side edges of the doors when in any open position.

Abstract: A spherical bearing assembly having an inner race member and an outer race member, the inner surface of the outer race member being a concave spherical surface, the outer surface of the inner member being a complementary convex spherical surface, the inner member including a spool member having two annular lips at each end thereof, and at least three spherical segments interlocked by the annular lips in an axial direction on the spool member, a gap provided between at least two of the spherical segments, a spring member interposed between the segments in the area defined by the gaps to axially bias and preload the segments against each other.

Abstract: A spherical bearing assembly having an inner race member and an outer race member, the inner surface of the outer race member being a concave spherical surface, the outer surface of the inner member being a complementary convex spherical surface, the inner member including a spool member having first and second threaded portions disposed on its outer surface at each end thereof and a smooth truncated conical section interposed therebetween, at least three spherical segments, each segment having a conical portion on its inner surface complementary to the truncated conical section on the outer surface of the spool member, first and second internally threaded annular rings adapted to be threaded on each end of the spool member in meshing relationship with the first and second threaded portions on each end of the spool member respectively, the segments disposed on and interlocked with the spool member by the annular rings.

Abstract: A self-aligning bearing comprising an outer member and an inner member disposed in and supported by the outer member, the outer member having a concave inner surface in bearing contact with the convex outer surface of the inner member, an annular groove provided on one of the surfaces, a resilient member filling said annular groove, the resilient member being in a substantially compressed state to exert a preloading braking force on the inner and outer members.

Abstract: In an internal combustion engine in which fuel in a fuel tank is sent to the carburetor to be sucked into the engine, a fuel separating system for starting an internal combustion engine comprising means for heating the fuel fed out of the fuel tank and means for cooling a vaporized low-boiling point fuel to condense so that a low-boiling fuel is fractionated out of the fuel in the fuel tank and the engine is started by the thus extracted low-boiling point fuel.

Abstract: Runway distances are disclosed on sides of translucent truncated pyramids mounted on spaced runway lights. The pyramids have flat tops and two translucent sloped sides with large numerals which face the runway at 120.degree. angles. A rear face has a port with the hinged door for installation and maintenance access. A flat bottom with a central hole completes the pyramid. Sides and bottom are joined by inner and outer riveted angular channels. Anchor plates cover inner corners of the channels. The pyramids are mounted at thousand foot intervals. Cross bars are painted across the runway between opposite pyramids to promote pilots' perception of the indexed distances. Diffusers in the pyramids wash light evenly over the translucent faces for enhanced visibility. Transformers within the pyramids step up voltage to brighten runway lights.

Abstract: A telecommunication system used in a mine has a long aerial along a tunnel which radiates signals to a mobile station. Signals from the station are radiated back to the line. Repeaters are included along the line to make up power losses. A connection of an extra length of line is made on the output side of each repeater and extends back parallel to the line for a distance of up to half the distance between adjacent repeaters. This extra line reduces the attenuation of signal power between repeaters.

Abstract: A rock excavating machine for forming an arch type underground roadway includes a base carrying a forwardly extending cutter carrying arm having a cutter for cutting rock adjacent to the roadway floor and an upwardly extending cutter carrying arm having a cutter for cutting rock adjacent to the raodway roof. The forwardly extending cutter is mounted on an arm which swings around a vertical axis, and which is elevatable along the vertical axis. The upwardly extending cutter carrying arm swings around a horizontal axis. Roof support jacks and beams are mounted on the base rearwardly of the cutters. Lateral jacks anchor the machine in the tunnel during cutting.

Abstract: A telecommunication system uses a long main transmission line which extends from a base station and has repeaters along its length. A parallel line is divided into sections corresponding in length to the distance between repeaters. Selected sections are connected in parallel with the main line through switches which operate at about a 3 kHz frequency. The switching operation reduced alternations in the main signal and mitigates problems arising from standing waves.

Abstract: Roof support equipment for a mining machine comprises a canopy supporting plurality of deformable, inflatable bags which can be temporarily deflated to allow advance of the equipment. The canopy is mounted on a movable base which may be constituted by the mining machine.

Abstract: A method of manufacturing a spherical bearing having an outer cylindrical member, an intermediate yieldable plastic member enclosed and supported thereby, said intermediate member having a concave inner surface and a spherical ball in bearing relationship with said intermediate member, said spherical ball having an outer surface complimentary to said concave inner surface of said intermediate member comprising the steps of preforming the outer member into a truncated conical member having a first radially inwardly annular lip formed at one end thereof, preforming the plastic intermediate member wherein substantially one-half of its inner and outer surface conforms generally to its final shape and the remaining portion of said intermediate member emanates outwardly therefrom, inserting said ball within the inner surface of said intermediate member such that a portion of the convex outer surface of said ball intimately engages the preformed concave inner surface of the intermediate member, inserting the interme

Abstract: Droppings are disposed by placing a rotating sprinkler within a container over droppings and dissolving the droppings, lifting the open-bottom container from the droppings, and flowing the solution or dispersion outward. A valve actuates the sprinkler once the open-bottom container has been placed over the dropping. A ballast tank fills with water to hold the container down on droppings when disposing of droppings which are resistant to solution or dispersion.

Abstract: A magnetic tape recorder has two electric motors only, one of which is arranged selectively to drive one or other of two winding hubs depending on the direction in which a magnetic tape is to be transported and the other of which drives a tape drive capstan. The first motor is disposed non-co-axially with the axes of the hubs and the second motor, which is flat in shape and has at least four pairs of poles, is disposed alongside and at the same level as the first motor.