Abstract: An improvement in a fishing apparatus is provided which has a body and a sinker releasably held thereto. The improved apparatus includes a notch in the body, and a release mechanism mounted on the body. A portion of the release mechanism is adapted for pivotal movement within the notch. The sinker has two protruding hook members. One hook member is held within the notch by the release mechanism portion. The other hook member is pivotally mounted on the body by a slot thereof. The improved apparatus sensitively and accurately releases the sinker when a fish has struck, and such release is readily sensed by a fisherman.

Abstract: A guide device for replacing a rope of a rope carrier on a dryer roll of a paper making machine comprises a fastener for attaching the device to the roll and a guide for guiding the rope back onto the roll. In carrying forth the method herein, the guide device is attached to the roll, the rope is placed over the guide device, and the roll is rotated to replace the rope thereon.

Abstract: PCT No. PCT/US79/00415 Sec. 371 Date June 13, 1979, Sec. 102(e) Date June 13, 1979 PCT Filed June 13, 1979 PCT Pub. No. WO80/02824 PCT Pub. Date Dec. 24, 1980The drives (34,34') of a vehicle are each driven by a pump (18) and motor (22) of a hydrostatic transmission (23). A servo-system (20) associated with each pump (18) is adapted to be controlled by a steering arrangement (35,36) for selectively rotating the drives (34,34') relative to each other. An interlock valve (43,44) is associated with each steering arrangement to stop the drives (34,34') of the vehicle when steering pedals (37,38) thereof are both depressed into certain positions (N,R) of operation. Thus, the operator of the vehicle is prevented from placing the vehicle in an unwanted mode of operation, such as in reverse, when the operator desires another mode of operation, such as braking of the vehicle.

Abstract: Magnetic control apparatus (32) for intensifying a magnetic field to actuate a magnetic control member (34) and for preventing simultaneous actuation of a pair (34, 36) of magnetic control members. In one (32) of several embodiments a pair (38, 40) of selectively movable magnets each respectively produces a magnetic field which, when a magnet is moved into position, is directed by a pair (42, 54) of elongated bars across the pair (34, 36) of control members to actuate one of the members in response to the field. The pair (42, 54) of bars bypass the magnetic fields from the control members (34, 36) when both magnets (38, 40) are in such a position to attempt to actuate the control members (34, 36). The pair (42, 54) of elongated bars intensify the magnetic fields at the control members (34, 36), thereby permitting the use of relatively weak magnets at a substantial distance from the members (34, 36).

Abstract: A method of converting inertial mechanical energy into a high energy direct current electrical pulse of short time duration is disclosed. Apparatus for practicing the method is described. According to the invention, a rotating mass is provided together with electrical conductor means for producing a localized magnetic field at the surface of the mass. A localized magnetic flux compression means is also provided at the surface of the mass and either the electrical conductor means or the flux compression means is rotated with the mass to produce periodic compression of the flux of the localized magnetic field in response to the rotation of the mass. A load is connected across the electrical conductor during such flux compression which converts a major portion of the inertial energy of the rotary mass into an exponentially rising pulse of direct current through the load with a very rapid decay.

Abstract: Pressure within a liquid containing vessel is determined by adding a solid precursor for at least one bubble to the liquid, retaining the precursor in the liquid for a sufficient time for it to form at least one bubble and generate a sonic signal, metering a characteristic of the sonic signal which is representative of the pressure in the liquid and determining the pressure in the liquid from the measured characteristic.

Abstract: In a pump or fluid motor (11, 11a, 11b) having a closed chamber (57) in which cylinders (38) orbit and reciprocate, leakage and cooling fluid which accumulates in the chamber (57) is formed into a rotating annular volume by centrifugal effects and exhibits a higher pressure in the region where the cylinders (38) move radially inward and closer together than in the opposite region where the cylinders (38) move outward and further apart. Power wastage from drag torque, turbulence and heat generation is reduced by scavenging the accumulated fluid from the chamber (57). Internal recirculation of the scavenged fluid from the high pressure portion of the annular rotating volume back to the low pressure portion is avoided by communicating the drain passages (68, 68a, 68b) with only a limited relatively high pressure sector of the rotating volume of fluid.

Abstract: A locking device fits over the hook of an ordinary garment hanger to secure it to the hanger bar in such a way that the hanger can be moved along the bar but cannot be removed therefrom. The locking device also carries a chain or the like which can be threaded through, e.g., a sleeve of the garment and hooked to the locking device. When unlocked, the device allows removal of the lock, hanger, chain and garment as a unit, or of the lock and/or chain alone; when locked the device and chain secure both the hanger and the garment to the bar. The entire device can easily be placed and removed from the hanger and garment in an easy motion as needed. For additional security, the key may be made removable only in the locked position.

Abstract: An improved tow truck is provided which comprises a boom pivotally lowerable and raiseable between the truck frame. The boom is telescopic with a rearward end which is extendible, and when fully lowered and extended the rearward end is adjacent the ground and may lift a load, such as a disabled vehicle, about the vehicle wheels. The boom may be retracted and raised to bring the lifted load close to the rear axle of the tow truck.

Abstract: A crane comprises a lower frame having an upper frame rotatably mounted thereon. A pair of rear roadwheels are rotatably mounted on either end of an axle housing pivotally mounted on the lower frame and suspended thereunder by a pair of laterally spaced suspension cylinders. A boom, pivotally mounted on the upper frame, is adapted to be lowered and positioned forwardly of the crane when it is driven to a remote job site. During such forward positioning of the boom, either when loaded or unloaded, a cam secured to the upper frame trips an air valve for opening a pair of slave valves to communicate hydraulic fluid between the head ends of the suspension cylinders to permit the axle to oscillate. When the crane is placed in operation and the upper frame is rotated on the lower frame, the cam will release the air valve which closes the slave valves to block communication of hydraulic fluid between the suspension cylinders whereby the axle is placed in a lock-out condition of operation.

Abstract: A new group of compounds having an enhanced ability to inhibit nucleic acid functions have been prepared. These drugs are bis-anthracyclines wherein two anthracycline molecules are linked through their C-13 carbon atoms by amino and/or hydroxy-dicarboxylic acids and their derivatives to form the bis-compounds. Such bis-anthracyclines may be even more effectively delivered to selected sites in a mammalian organism by incorporating the same within uniformly sized liposomes.

Abstract: A handle (12) is pivotally mounted on a support (11) and is connected to a potentiometer (21) by a linkage (24) for selectively varying the resistance of the potentiometer upon manipulation of the handle. The linkage includes a link (25) adjustably connected to the handle for varying the degree of relative movement between a housing (22) and rotary adjustment shaft (23) of the potentiometer to thus vary the range of resistance thereof in response to a same increment of movement of the handle. The linkage may include a hinge assembly (34) and a biasing spring (31) or the link may be connected to the adjustment shaft (23b) of the potentiometer directly.

Abstract: A powdered sodium percarbonate composition is provided which exhibits significantly improved percarbonate stability during storage. The sodium percarbonate is stabilized by a phosphate containing compound such as sodium tripolyphosphate or sodium orthophosphate. The powdered sodium percarbonate composition is useful as a powder bleach and preferably comprises a separation resistant bleach composition in the form of a plurality of particles, substantially each particle including sodium carbonate, sufficient sodium percarbonate to provide from about 1 to about 6 weight percent available oxygen, and sufficient of the phosphate containing stabilizer to retard decomposition of the percarbonate.

Abstract: PCT No. PCT/US 79/ 00573 Sec. 371 Date Aug. 6, 1979 Sec. 102(e) Date Aug. 6, 1979 PCT Filed Aug. 6, 1979Conventional directional control valves and the like normally include relatively complex and spatially separated centering and detent mechanisms for selectively maintaining a valve spool at centered and detent-held positions, respectively. Such valves are normally bulky and the casings therefor, primarily since they require machining, cannot be manufactured by die-casting methods. This invention overcomes the above problems by providing for the precise positioning of a valve spool (11) in its centered position by interassociating and engaging a centering mechanism (17) with a detent mechanism (30) by a stop (27), defined on a retainer (24) of the detent mechanism (30).

Abstract: A telescopic boom is pivotally mounted on a frame of a vehicle and comprises telescopically disposed first, second, third and fourth sections. A double-acting cylinder has a rod thereof connected to the first section and a housing thereof connected to the second section. A first pulley is rotatably mounted on a forward end of the cylinder housing and a second pulley, having a larger diameter than the first pulley, is rotatably mounted on a rearward end of the cylinder housing. A first end of a cable is secured to the first section and is sequentially entrained over the first pulley, secured to the third section, entrained over the second pulley and has a second end thereof secured to a forward end of the first section. Thus, extension of the cylinder will function to extend the second section relative to the first section and simultaneously extend the third section at twice the linear speed as that of the second section.

Abstract: Examination of dental patients or other subjects (14) with a radiographic system (11) having a scanning X-ray source (17) and a collimator (58) with a plurality of passages (62) for directing X rays to a detector (51) is facilitated by an image region selector (12) which is separate from the source. The selector (12) includes the detector (51) and means (64) defining the collimator position at which the collimator passages (62) are directed towards the detector (51). The selector (12) may be positioned and independently supported, to establish the region to be imaged, prior to the time that the relatively heavy and bulky X-ray source (17) is maneuvered into position for making the examination.

Abstract: A tool (12) for mounting a track assembly (11) on a track-type vehicle comprises first (18) and second (39) attachments for being interconnected between a drive sprocket (10) and the track assembly (11). A flexible connector (35) has its ends attached to the first attachment (18) and is further attached to the second attachment (39). In carrying forth the method, the sprocket (10) is rotated to dispose the free ends of the track assembly (11) adjacent to each other for connection by a master link (16) or pin (42). The tool and method provide for the expeditious and safe mounting of the track assembly (11) on the vehicle, including smaller-sized ones.