Abstract: A collimator (21, 38, 38A) transmits intercepted X rays or the like along an array of predetermined spaced apart paths (22, 22A), which may be parallel or convergent, while absorbing intercepted radiation which is traveling in other directions. A laminated construction of the collimator provides for an extremely large number of very minute and closely spaced radiation passages (42, 42A) which may have a noncircular cross section to increase transmissivity. The laminated construction also reduces the amount of heavy and sometimes costly radiation absorbent material required in the collimator, enables precise control of the transmitted radiation paths and facilitates the establishing of a desired focal point for the paths. Photoetching techniques, including optical image reduction, are used in the manufacture of the collimator laminations. In some variations of the method, the radiation absorbent material is plated onto the laminations.

Abstract: An assembly (32) for adjusting a steering wheel (30), supported on a steering column (36), in relation to an operative position of the wheel (30), includes a hinge (34) supporting the column (36), a fixed bracket (44) pivotally supporting the hinge (34) and having a seat (58) on which the hinge (34) sits in the operative position, and an actuating mechanism (62) being rotatably coupled through the hinge (34) and bracket (44) to move the hinge (34) off of and onto the seat (58). The assembly (32) can be used in a forklift truck (10) and is directed to provide, for example, for moving the wheel (30) through infinite, rather than discrete positions, and to prevent impact forces from being imparted to the actuating mechanism (62) in response to positioning the wheel (30).

Abstract: PCT No. PCT/US79/00763 Sec. 371 Date Sept. 24, 1979 Sec. 102(e) Date Sept. 24, 1979 PCT Filed Sept. 24, 1979 PCT Pub. No. W081/00897 PCT Pub. Date Apr. 2, 1981The push arms of a conventional bulldozer assembly are mounted on a track roller frame of a track-type tractor by bearing assemblies, each including a pair of bearing caps. One of the bearing caps is welded to the push arm, thus requiring that it be cut-off upon replacement thereof. In addition, the bearing cap welded to the push arm must be selectively hardened to avoid stress cracking in the heat affected zone of the weld. This invention overcomes the above problems by providing a bearing assembly (16) which includes a pair of separable first and second bearing caps (17, 17') which are secured together and to the push arm by common fasteners (28).

Abstract: PCT No. PCT/US79/00859 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979 PCT Filed Oct. 15, 1979 PCT Pub. No. WO81/01034 PCT Pub. Date Apr. 16, 1981In prior art hydraulic systems, and in particular in hydraulic systems having a cylinder means for elevating and lowering a load, there exists the possibility that the hydraulic line from a control valve to the cylinder means could rupture, allowing the load to drop before the operator could react. The present invention solves this problem by providing a blocker valve (100) in the vent line (69) of a check valve (33,34) which check valve is interposed in the main line 27 between a cylinder means (12) and a control valve (21). The blocker valve (100) is responsive to the back pressure in the main line (27) from the check valve (33,34) to the control valve (27).

Abstract: A toy including a housing having a front panel, a compass having a magnetic needle mounted on the panel, a pair of LED's on opposite sides of the compass, a sound alarm on the panel, and an electronic circuit, having a pair of contacts, which energizes one of the LED's and the sound alarm in response to the needle being pivoted in one direction to close one of the contacts, and which energizes the other LED and the sound alarm in response to the needle being pivoted in the other direction to close the other contact. The needle is pivoted by strategically positioned bar magnets external of the toy. The electronic circuit can be manually reset or automatically reset after a predetermined period.

Abstract: A lock for a bicycle wherein a locking cable is stored in an upwardly extending frame tube of the bicycle. A weight on the cable within the frame tube has a triple function, in that: it prevents the cable from being pulled completely out of the frame tube when the bicycle is being locked; it pulls the cable back into the frame tube when not in use; and, it jams the pedal crank shaft against operation in the event a thief should cut the cable when the bicycle is locked.

Abstract: A prosthetic device which is adjustable in the transverse plane includes a flanged element moldable in a plastic socket and an element having a toothed superior surface. The plastic socket is formed about the flanged element while using the toothed superior surface as a mold surface. A fastener engages the toothed superior surface and this affixes the formed socket to the toothed element. The fastener may be loosened so that incremental rotation of the toothed element relative the socket is permitted.

Abstract: PCT No. PCT/US79/00595 Sec. 371 Date Aug. 13, 1979 Sec. 102(e) Date Aug. 13, 1979 PCT Filed Aug. 13, 1979 PCT Pub. No. WO81/00386 PCT Pub. Date Feb. 19, 1981Conventional fluid control circuits for service brakes and the like do not always provide an operator with "pedal feel" to indicate the degree of brake engagement. Such "pedal feel" is particularly desirable in braking systems wherein the brakes thereof are spring-engaged and released by hydraulic fluid pressure. This invention provides a control valve (18) having an inlet (20), an outlet (21), a valve member (19) movable betweeen closed and open position, and a first spring (30) for urging the valve member (19) toward its closed position.

Abstract: PCT No. PCT/US79/01033 Sec. 371 Date Nov. 29, 1979 Sec. 102(e) Date Nov. 29, 1979 PCT Filed Nov. 29, 1979Heretofore the capability of operating a system (10), which supplies fluid to a hydraulic circuit (12), selectively at either a high or a low flow rate with only a single pressurized fluid source (14) has not existed. Such a system (10) includes a control valve structure (16) for controlling delivery of fluid from the source (14) to drive the circuit (12) and a flow control (22) for metering a portion of the fluid to the circuit (12). The capability of operating such a system (10) selectively at either a high or a low flow rate is advantageous in some modes of operation of the circuit (12). Herein, hydraulic circuitry (86) serves for controlling the magnitude of the portion in response to application of a signal thereto and a device (78) is provided for selectively applying the signal to the circuitry (86) for selectively directly controlling the magnitude of the portion.

Abstract: PCT No. PCT/US79/00128 Sec. 371 Date Mar. 2, 1979 Sec. 102(e) Date Mar. 2, 1979 PCT Filed Mar. 2, 1979 PCT Pub. No. WO80/01821 PCT Pub. Date Sept. 4, 1980A system for shutting-down an engine upon overspeeding thereof comprises an engine-driven shaft (19) having a flyweight mechanism (27) connected thereto and engageable with a reciprocally mounted trip shaft (32). The trip shaft (32) is, in turn, engageable with a pivotal latch (33) which is adapted to normally hold a spring-loaded control piston (44) in an inactive first position for permitting normal engine operation. A cable (12) connects the control piston (44) to a flapper valve (11), pivotally mounted in the intake manifold (13) of an engine. The manifold (13) is adapted to be closed upon tripping of the latch (33) to disengage the control piston (44) to permit its movement to an activated second position when the engine speed exceeds a predetermined maximum speed.

Abstract: A multi-stage Geneva mechanism comprises first and second Geneva mechanisms and a constant speed ratio drive, such as a gear train, interconnected between the Geneva mechanisms. An adjustment mechanism is connected to the gear train to selectively adjust the phase angle between a crank and wheel of the second stage Geneva mechanism, on the output side of the system. Selective change of such phase angle enables the operator to fine-tune the indexing time to accommodate more precisely the requirements of an automated production line.

Abstract: A selector valve selectively communicates pressurized fluid from an inlet to an outlet and is adapted to be connected to a clutch of a transmission. The selector valve comprises a spool normally blocking communication between the inlet and outlet, a selector piston responsive to a control signal for movement towards the spool and a load piston reciprocally mounted in the selector piston and adapted to be moved thereby to control movements of the spool. A modulating orifice is interconnected between the outlet and the load piston to control movements of the spool for modulating fluid pressure in the outlet to a predetermined level.

Abstract: A self-steering caster is biased into one or more predetermined steering positions with a constant force by a bias wheel arranged to roll along a cam surface in the shape of a circle which is concentric with the caster's swivel axis and whose radius increases at a linear rate in both directions from the point corresponding to the steering position to a point or points on the cam surface remote from the steering position. Detent means may be provided at the steering position to releasably lock the caster in the steering position.

Abstract: A structure for supporting a pot containing material such as food therein is pivotally attached to a base, with a ratchet mechanism operatively connecting the structure and base for providing that the pot may be pivoted to and held in a variety of positions, so that food may be readily transferred from the pot into smaller containers.

Abstract: A golf game comprises a board having at least one golf hole defined thereon, including a tee and a green. A coordinate system is defined on the board and includes a plurality of first lines extending from the tee to the green and a plurality of second lines disposed transversely relative to the first lines to intersect therewith. When the game is played, a player initially places a flag stick at a selected location on the green and thereafter sequentially rolls dice to determine the direction and distance his marker (ball) will be moved from the tee towards the green to simulate the flight and location of a golf ball on the board. Once the player's marker has reached the green, he then proceeds to roll further dice in his attempt to place the marker at the "hole" whereat the flag stick has been placed. Various obstacles and hazards are defined on the board to further test the player's ingenuity in playing the game.

Abstract: PCT No. PCT/US79/00158 Sec. 371 Date Mar. 16, 1979 Sec. 102(e) Date Mar. 16, 1979 PCT Filed Mar. 16, 1979 PCT Pub. No. WO80/01894 PCT Pub. Date Sept. 18, 1980A vehicle component (10) is removably mounted on a stationary support (11) thereof. A pair of rollers (17,17a) rotatably mounted on the component (10) each engages a rail (18,18a) secured on the support (11) to thus precisely guide movements of the component (10) upon installation or removal thereof. The apparatus of this invention provide for the expeditious and precise handling of the component (10), compensate for avoidance of interference with structural parts of the vehicle during such handling, and are adapted for use with components, such as modular transmission packages having varied designs.

Abstract: Ultrasonic images of flowing streams can provide important information regarding the streams. Herein, a plurality of microbubbles are provided in such streams to enhance such images, aid in tumor detection and treatment, provide mapping of vascularity of tissue masses and measure instantaneous blood flow rate. The preferred microbubbles have a coalescence resistant surface membrane encapsulating a gas of a selected composition, the membrane including non-toxic and non-antigenic organic molecules. Preferrably, the microbubbles have diameters in the 0.5 micron-300 micron range.

Abstract: An apparatus (40) and method for increasing the fin density of a serpentine sheet (10) having a plurality of fins (14a, 14b, 14c), each fin having two sides (16, 18) coupled together at one end (20) with a space (22) between the sides. Blocks (30, 32) having receptacles (30a, 32a) for receiving the ends (20, 24) of one side (16) of a fin (14a) and being near opposite surfaces (A, B) of the sheet (10) are moved vertically into contact with such ends. Simultaneously, blades (34, 36), being near the opposite surfaces (A, B) of the sheet (10) are moved vertically into position at the other side (18) of the fin (14a). Then, the blades (34, 36) are moved horizontally towards the blocks (30, 32), which are now held stationary, to compress the fin (14a) a predetermined amount by moving the other fin side towards the one fin side. The blocks and blades are then withdrawn from the sheet to move another fin (14b) into position for another compressing operation.

Abstract: A fuel filter system including a transparent sediment bowl which is protected from thermal shock by means of a flame deflector mounted on and surrounding the lower portion of the sediment bowl. The flame deflector is made of stainless steel and has a wall thickness between ten thousandths and fifteen thousandths of an inch with a stiffening flange about its upper edge. The sediment bowl is preferably made of chemical resistant plastic transparent to visible light providing mechanical shock resistance with the flame deflector providing thermal shock resistance.