Abstract: The invention relates to a brandnew multi-function static-errorless pressure control method and the valve thereof, in which a cylindrical two-side three-way valve is used as the pilot valve 20 and an asymmetric double-action differential hydraulic cylinder is used as the main valve 10 to constitute an 1-type static-errorless closed-loop negative feedback control system, a transfer means with special oil network connects to the oil circuits 1, 2, 8 and ports 4, 5, 9, L of the system and makes the valve to correspond to six operating modes of the relief valve, remote control relief valve, constant valve pressure reducing valve, constant difference pressure reducing valve, internal control sequence valve and external control sequence valve respectively. The test results have shown that the static error of the pressure control valve of present invention is 0.5%, the overshoot is less than 5%, and no self-excitation is found.

Abstract: The apparatus for trimming a layer of back fat off a pork shoulder butt comprises a frame as well as a flat, flexible and arcuate cutting blade with two ends respectively attached to a pair of blade holders pivotally mounted onto the frame. A conveyor, a set of upper gripper belts, and a rotative roller pass the shoulder butt through the blade to trim off the layer of fat. The rotative roller has a diameter gradually decreasing along its longitudinal axis from each end of the roller toward the center thereof to define an annular, concave outer surface. This roller is mounted onto the frame adjacent the arcuate blade on the outside of the curve this blade defines but with a distance separating the annular surface and the blade to enable passage of the layer of fat between them. The annular outer surface of the roller is formed with teeth to engage the fat whereby rotation of the roller forces the shoulder butt through the blade.

Abstract: A system for measurement of a distance to a target. Light is emitted from a multi-mode laser and coupled to a sensor assembly. A portion of the light at the sensor assembly is reflected back into the fiber optic cable from which it came. The other portion of the light from the sensor assembly is projected towards the target. Light is reflected from the target and also connected into the optical cable as a target beam. The target beam and the reference beam then are connected through a path of variable length. When the target beam and the reference beam interface with one another, the path length is determined to be equal to the length to the target.

Abstract: A tamper-proof tag, made of a unitary body formed of injection molded plastic material, comprises a fastener flexibly connected to a strap, the latter being foldable into a ring with one end engageable into a catch defined at the other end of the strap. The fastener is so configured that, once received in the catch, it may be forcingly engaged into an opening defined in the strap and extending in the catch of the engaged strap. Once engaged, the fastener cannot be removed without damaging the tag.

Abstract: A laser printer with a thermal fixing unit comprises: a pair of heat and pressure rolls for pressing a sheet with a developed toner image therebetween to fix the toner image on the sheet; a web immersable with an oil; an oil coater for supplying the oil to the web and pressing the web against the heat roll at at least one point to make the web contact with the heat roll so that the oil is applied from the oil coater onto the surface of the heat roll through the web to thereby prevent occurrence of offset of the toner image; and at least one pressing member provided separately from the oil coater for locally urging the web against the heat roll, the pressing member being located on at least one of before and behind the oil coater.

Abstract: A wavelength filter is integrated to a single-mode optical fiber capable of propagating a light signal and comprising a longitudinal and opaque outer jacket enveloping the fiber. This fiber is stripped of its jacket on a given length thereof to obtain a non-jacketed length of optical fiber. The so produced non-jacketed fiber length is formed with first and second concatenated biconical tapers separated from each other by a given distance and each having a given profile. By appropriately selecting the distance separating the two tapers and the given profile thereof, the filter will enable transmission of a first, predetermined wavelength of the propagated light signal while it will stop a second, predetermined wavelength of the signal. A method of integrating such a filter to a single-mode optical fiber is also proposed.

Abstract: A vehicle steering lock device mounted to an automotive vehicle, in which a rotor in a cylinder lock is rotated to a lock position by the operation relevant to the rotor, comprises switching means for detecting a specific pushing operation to the rotor, etc. and switching means for detecting the situation of a shift lever to a parking position or not, in which rotation of the rotor to the locking position is allowed or inhibited in accordance with signals from both of the switching means and which enable safe parking on a downward slope and can prevent erroneous steering lock operation during down hill running without engine driving.

Abstract: A medical intravenous line coupling device can be secured to standard "y" shaped junction tube. The device can comprise a single member which fits with the junction tube and has passages shaped to receive and secure with the junction arm. A "b" shaped slot can be provided in the member for that purpose. The container can have a menas for receiving a liquid for injection into the intravenous system, such as a receptacle, and a means for allowing liquid flow from the receiver into the junction tube, such as a needle. The device may include a second member which has a passage to interact with the junction arm. One member can fit about the other and be rotatably mounted hereto. The junction arm can be received by the two members when they are in a first position relative to one another, and can be secured when the members are moved relative to each other. With the two member assembly, the receiver, such as the receptacle, and the liquid flow means, such as the needle, can be mounted to the first or second member.

Abstract: An apparatus that enables simultaneous readings of the camber, caster and steering axis inclination of the steering components of a front wheel suspension of a vehicle; the apparatus comprises a C-shaped upright, the upper and lower extremities of which engage the upper and lower steering pivots of the component. A carriage, slidably mounted on the upright, supports a yoke member which is adapted to bear against the hub assembly of the vehicle wheel. A first gauge is mounted to the yoke member to give a camber reading of the strut while second and third gauges are mounted on the carriage to give a caster reading and a steering axis inclination reading.

Abstract: A tamper-proof tag which is made of a unitary body, formed of molded plastic material, and comprises a fastener connected to a flexible strap, the latter being foldable into a ring and engageable into a catch defined at one end of the strap. The fastener is so configured that, once received in the catch, it may be forcingly engaged into one of a series of holes in the strap. Once engaged, the fastener can no longer be removed without damaging the tag.

Abstract: A method and apparatus for forming a laminated bifocal lens which includes forming a frontal lens component having a bifocal element in a substantially stress-free manner and bonding the frontal lens component to a rear lens component which is also formed in a substantially stress-free manner. The laminated lens so provided may be inexpensively formed, is lightweight, and has optimum optical and physical characteristics.

Abstract: In an electrophotographic printer, a photoconductive drum is scanned with a light spot provided by scanning light sources to electrostatically form a latent image with dot on it. The light sources comprise at least two LED print heads different in linear density are provided to print out data different in linear density on one and the same page.

Abstract: The present invention relates to an apparatus for illuminating and for collecting air which is contaminated by a certain substance in the adjacent area of the apparatus. The latter includes a reflector defining an internal cavity in which is mounted a light source. A conduit is mounted to the reflector and communicates with the internal cavity thereof. A blower unit is mounted within the reflector for drawing contaminated air and expelling it through the conduit. Advantageously, a filter element is located within the conduit to remove the contaminant from the air mass passing through the conduit.

Abstract: In a heat processing apparatus in which a gas/air mixture is piezoelectrically ignited to heat the combustion catalyst by the ignited flame for taking place subsequent flameless catalytic combustion of the gas mixture, a portion of the gas in the flaming combustion space is directly discharged to the outside not passing through the combustion catalyst upon flame ignition, while the entire amount of the gas in the combustion space is introduced to the combustion catalyst after reaching the catalytic combustion, by using a discharge gas control mechanism interlocked with the operation of the ignition button, as well as the opening degree of the external air ports is changed variably so as to provide suitable gas/air ratios upon ignition, flame extinguishment and usual catalytic combustion respectively by the air flow rate control member also interlocked with the ignition button.

Abstract: A releasable self-adhesive film laminate designed for a sealed label or card comprises a pair of transparent films made of a thermoplastic EVA composition mainly comprising about 3 to 18% by weight of vinyl acetate and about 97 to 82% by weight of ethylene formed through a thermoforming process, for example, blow-molding and urging facing inner walls of the molded tubular film to each other, while hot, under pressure. A sealed label or card can be made easily and simply by using the releasable self-adhesive film laminate.