Abstract: In the ultrafiltration of liquids such as vinegar, wine, etc., the liquid to be filtered is fed from and back to a circulating tank through at least one filtration circuit including at least two serially connected, vertically spaced, non-horizontal filter modules through each of which the liquid flows from top to bottom. Each filter module consists of a pipe enclosing a bundle of capillary tubes of semi-permeable membrane material and having a lateral outlet for filtered liquid. Each two successive filter modules are separated from one another by a fall interval zone through which unfiltered liquid can flow with a negligibly low pressure drop from the outlet of the upper filter module to the inlet of the lower one, and each fall interval zone is so arranged that the pressure drop occurring in the upper one of each two successive filter modules is equalized, to the extent of about 0.5 to 1.

Abstract: The ejecting member is interposed between two blade elements of a two-edge shaving blade unit in a manner to be retractably moved forwardly to eject shaved hair particles and other matters deposited in and clogging the space between the cutting edges of two blade elements. The ejecting member has an integral construction which includes an outer frame portion defining the outer profile of the ejecting member, a substantially quadrilateral aperture having at least one discontinuity and defining at its outer sides the inner edges of the outer frame portion, an inner island portion fixedly cramped between two blade elements and defined by the inner sides of the aperture, and a resilient bridge portion constituted by the discontinuity of the aperture and resiliently connecting the inner island portion to the outer frame portion.

Abstract: An improved leaf spring suspension system for a trailer, which incorporates a pair of even acting fluid dampers one on each side of the trailer chassis, each damper being connected at its ends to and extending between extension arms depending from the corresponding leaf spring rear end suspension point and a mounting bracket secured to the underside of the chassis, the dampers being arranged to slope upwards in a rearward direction.

Abstract: Mounting for a tree shaker having a pair of mounting brackets secured to respective sides of the tractor, a guide extending transversely beneath the tractor chassis, and supporting a slide which is coupled to the near side mounting bracket by means of a piston/cylinder assembly whereby the slide is movable in a transverse direction with respect to the tractor, the slide carrying on it a tree shaker.

Abstract: An apertured insulation unit is disclosed for interposition between a mold having at least one cavity in which elastomeric stock can be cured in the form of said cavity and an injection unit from which elastomeric stock can be expelled and transferred through the insulation unit to the mold cavity, the mold and injection unit being movable axially relative to one another into and out of pressing association with respective opposite side-faces of the insulation unit. The insulation unit serves to prevent curing of elastomeric stock remaining in the injection unit with the curing of the portion of such stock transferred to the cavity, without separation of either the mold or the injection unit from the insulation unit. The insulation unit is at least in part in the form of a thin, flexible, apertured plate constituted of a thermal-insulatory material which is engageable and forms a parting line with the mold.

Abstract: A compound of the formula ##STR1## is useful in protecting organic materials normally subject to oxidative degradation. Among the products benefiting from the incorporation of this phenolic antioxidant are synthetic and natural rubbers, petroleum products and plastics.

Abstract: A pneumatically operated secateur provided with a nozzle which emits a spray of protective fluid through the nozzle when the secateur operating trigger is released. The spray is emitted in a metered quantity from a pump when mixed with the escaped air from the secateur. The method involves an operator holding a finger on the trigger until the nozzle has been directed on the wound caused by pruning, and then releasing his finger to spray the wound with protective fluid.

Abstract: A system for the automatic management (detection and control) of tool life in a numerically controlled machine tool having means for automatically measuring the dimension of workpieces and correcting the tool offset of a cutting tool depending on wear on the cutting tool. In the system, the mechanical deformation error component (radial deviation component of a spindle of the machine tool) due to heat is removed from the amount of tool offset value (tool feed position compensation) so as to accumulate solely the net tool wear component, and the cutting tool is exchanged when the accumulated value attains a predetermined setting.

Abstract: Novel L-leucyl-4-hydroxyanilide derivatives of the formula, ##STR1## wherein R represents a carboxyl group or a sulfo group or an acid addition salt thereof, which are useful for assay of leucine-aminopeptidase activity.

Abstract: A grinding attachment for porcelain bodies, comprising a rotary shaft having a flange and an externally threaded end portion; a plurality of groups of grinding wheels concentrically mounted on said rotary shaft and clamped between said flange and nut, said each grinding wheel in the respective groups including a support disk and a plurality of grindstone pieces equidistantly mounted on a circumferential end surface of said support disk and having their arcuate end surfaces disposed on one and the same circumferential surface, said grinding wheels being mounted on the rotary shaft in such a manner that the grind-stone pieces on the respective grinding wheels alternate with the grindstone pieces on adjacent grinding wheels in the circumferential direction.

Abstract: A rotary cylinder type separator comprises a slightly tiltable, horizontally installed rotary cylinder, a plurality of combs secured to the inside of the cylinder, in parallel and substantially axially of the cylinder, a feeder for introducing a mixture of grainy material and impurities into the cylinder at one end, an outlet formed at the other end of the cylinder for discharging the grainy material out of the cylinder, and a device for discharging the impurities larger in size than the grainy material and that have been scooped by the combs to a high level and have then fallen within the cylinder. The last-mentioned device is a fan for producing an air blast within the cylinder, or a combination of a stationary collection trough inserted axially through the cylinder for receiving the impurities that fall from the high level, and a screw conveyor mounted inside the trough.

Abstract: A vehicle has a main frame which is adjustable for height, and a swivel frame pivoted to the main frame. There are at least three driven saws on the frames, and at least one of those is on the swivel frame. The saws are arranged to cut canes which extend respectively upwardly, outwardly and inwardly of a vine which is carried on a trellis wire.

Abstract: An automatic water supply system used for raising domestic animals such as cattle, horses, poultry and so on and especially for pigs. Instead of a water flow control device such as a valve, float or the like provided in a self supply water trough, a flow control container is used which is communicated through a water supply pipe to a common water storage tank, placed at an elevated position inaccessible to a pig or the other animals and includes a float, a valve and a siphon which may ensure the automatic and positive supply of water into the trough as the water level in the trough is lowered by an animal drinking therefrom. Therefore the unnecessary supply of water caused by the undesired engagement of the mouth of an animal with the water flow control device in the trough mischieviously, and/or the stopping up of the drain with remaining food particles may be completely eliminated.

Abstract: Electrolyte from a battery cell is circulated by pump, through a container which contains a hydrometer float, and back to the cell. The float has an opaque neck which interrupts light passing from a light source assembly to a light receiving assembly, and the receiving assembly controls slave means, which can be an illuminated sign, as for example a group of visible light emitting diodes, the number of which illuminated indicating the density of the electrolyte. The slave means can alternatively be a volt meter, or a battery charger, the rate of charge of which is controlled by a voltage signal.

Abstract: A method of making a belted, radial ply tire in a single stage is disclosed wherein a body layer is formed from one or more body plies of cord fabric which are wound around a tire building drum in such a manner that the cords extend parallel to the axis of the building drum. At least a pair of breaker plies of cord fabric are wrapped around the body plies to create a breaker layer with the cords in each breaker ply being oppositely disposed in adjacent plies, extending parallel to one another within each breaker ply and forming a bias angle of from about 50.degree. to about 70.degree. with a circumferential line corresponding to the crown centerline of the completed tire. A strip of high soft stretch reinforcing tape is wrapped helically over the breaker layer at an angle of substantially 90.degree. to a plane including the axis of the body layer to form a 0.degree. cap band preparatory to securing a tread slab over the breaker layer, completing the raw carcass.

Abstract: Apparatus for dispensing metered amounts of mercury and silver alloy, for the production of dental amalgam, is disclosed. The apparatus can dispense the silver alloy in either tablet or powder form and is provided with a stirring member in the silver alloy powder supply container to agitate the powder during the metering and dispensing thereof so as to alleviate the problem of clumping. The apparatus also has a member to adjust the amount of mercury being dispensed and an element for locking the adjusting member securely against accidental shifting out of position.

Abstract: A cutter knife having a sheath type holder, a control knob slidably mounted in the holder and a blade attached to and retained by the control knob. The holder is provided with an elongated slot along which the control knob is moved, a longitudinal through passage through which the blade is passed, a slide bore in which a blade-retaining portion of the control knob is slidingly moved and guiding means formed in the back side thereof. The guide means is in communication with the end portion of the slide bore, and are adapted to suitably guide the blade-retaining portion of the control knob. The blade can be moved through the through passage and fixed with a desired projection length from the holder, as the control knob is moved along the elongated slot and fixed to the latter by suitable means.

Abstract: A numerical control system for a machine tool having a plurality of saddles; comprising saddle discriminating means for discriminating the saddles from each other, in which saddle discriminating means the cutting work program for controlling the machine tool is described by the use of the same word addresses for each of the saddles but by adding codes for discriminating the saddles from each other at the head of the respective words indicating the same word addresses.