Abstract: A device is adapted to reduce as much as possible the effective length of a spring for providing a load on a mobile member, such as a dancer roller for absorbing the slackness in a web of packaging material, with respect to the distance by which it may move. Two pinions with different diameters are affixed to the mobile member, the larger pinion engaging with a mobile rack and the smaller pinion engaging with a fixed rack. The mobile rack is adapted to move so as to cancel the displacement by the mobile member by a distance determined by the ratio of the diameters of the pinions, thereby reducing the effective length of the spring.

Abstract: A loading/unloading vehicle having booms and a bucket carried thereon such as a shovel loader, a wheel loader or the like vehicle detects that a true bucket-to-ground angle coincides with a preset angle after the vehicle starts automatic turning movement of the bucket. When the coincidence is detected, the automatic turning movement of the bucket is interrupted. Thereafter, a differential value between the true bucket-to-ground angle and the preset angle is determined, if any and then the bucket angle is corrected so as to allow the differential value to be reduced to zero. Consequently, the bucket is held at the preset angle after the bucket stops, even though the booms continue to be turned.

Abstract: A transverse sealer for a packaging machine has a pair of seal jaws for sealing a film after it is made into the shape of a bag by a former and the bag is filled with articles to be packaged. The pair of seal jaws are disposed on opposite sides of the path of the film and downstream to the former. A pair of rotary arms supporting these seal jaws is moved towards and away from each other such that the seal jaws move in straight trajectories along the path of the film and is so controlled that the compressive force between the seal jaws can be maintained at a specified level according to the thickness and material property of the film.

Abstract: Polyester resin for a toner binder obtained by a reaction employing a polycarboxylic acid or its derivative, and a polyol comprising a phenolic resin possessing an oxyalkylene unit. This polyester resin applied for a toner binder for electrophotography which is excellent for fixing at low temperature and resistance to offset at elevated temperature.

Abstract: An image display system is provided in which an image to be displayed is subdivided into a plurality of images. The plurality of images are displayed on a plurality of display devices. An image is converted to a high definition television signal, and then converted to a plurality of signals compatible with standard television systems. Since the image is subdivided electronically, mismatching between screens is avoided. Further, when the input image to be displayed has an aspect ratio larger or smaller than that of the high definition television system, the displayed image is appropriately shifted, thus eliminating hardware and reducing the system cost.

Abstract: A horizontal sealer for a vertical pillow type form-fill-seal packaging machine has a pair of horizontally elongated heater assemblies which are supported such that they remain horizontal as they individually rotate around mutually parallel axes. The distance between these axes are varied as the heater assemblies rotate around them such that the heater assemblies have generally D-shaped trajectories as they horizontally seal a tubularly formed thermoplastic flexible film material to make a bag. Mechanisms are provided whereby the heating surfaces of the assemblies remain oriented in the same direction, the pressure applied to the film material can be controlled and the bag can be squeezed before the horizontal sealing such that articles being packaged will settle inside the bag. A similarly structured vertical sealer may be provided to a horizontal pillow type packaging machine.

Abstract: An improved system for making packages includes one or more packaging machines, a storage device for storing film rolls and a transporting device for transporting these film rolls to the packaging machines for loading. The packaging machines are of a type having a cantilevered film-supporting shaft for holding a film roll and sealers for longitudinally sealing overlapped side edges of a film pulled out of a film roll supported by the film-supporting shaft and horizontally sealing tubularly formed film to make bags. The film-supporting shaft extends in the forward-backward direction of the machine such that, when a plurality of these machines are arranged in a mutually side-by-side relationship, their film-supporting shafts are also in a side-by-side relationship and can be easily approached from one direction. The storage device may store the film rolls horizontally or vertically. The transporting device may be a forklift.

Abstract: A form-fill-seal type packaging machine pulls an elongated film out of a film roll, directs it to a former to roll the film into a cylindrical form and produces bags by longitudinally sealing the overlapping side edges of the film and transversely sealing the tubular film at top and bottom positions. A roller-like film-guiding piece normally disposed adjacent to the former is on a slidable base plate so as to be retractable away from the former for the convenience of the operator when the film is initially set or when the former is replaced by another one. The slidable plate can be automatically stopped at its normal position adjacent to the former by detecting the extension of the former by a sensor. A device for straightening the film undergoing a zigzag motion is also supported by this slidable plate and hence can be retracted away from the former.

Abstract: A form-fill-seal packaging machine, which pulls out an elongated film from a film roll and transports it to a former to form it in a tubular shape, includes a mechanism with two parallel rollers such that the film path can be shifted transversely. The two rollers are formed as two sides of a linked parallelogram unit, of which the shape is automatically changeable according to the direction of the rollers so as to reduce the transverse distance by which the film will have to slide on the rollers. According to another embodiment, the packaging machine has its film-supporting shaft extending in backward direction. A horizontal rod disposed diagonally to the path of the film causes it to turn by 90 degrees towards the former at a front part of the machine. This diagonal rod is adapted to move horizontally in the forward-backward direction, depending on the width of the film being transported such that the film is accurately directed to the former.

Abstract: The invention provides a bath for immersion plating a substance with a tin-lead alloy, which includes tin(II) ions, lead(II) ions, organic sulfo groups and thiourea or a mixture of thiourea and a thiourea derivative for a complexing agent. The organic sulfo groups allow insoluble thiourea complexes to be stably dissolved in the solution of the bath; thereby there is no need to retain the bath at a high temperature. Compared with conventional baths for immersion plating, the bath of the invention attains stable plating and a longer life of itself. Addition of the thiourea derivative prevents whiskers from being deposited and allows uniform and sufficiently smooth plating.

Abstract: A video image displaying system comprises first video equipment for converting a HDTV video signal to a plurality of video signals of a second format for display on a plurality of television receivers responsive to signals of the second format and second video equipment for providing one or more video signals of the second format to selected television receivers in response to a switching circuit. The image displaying system includes a noise reduction circuit, with coring circuit, in which the characteristics of first and second filters are set in such a way as their overall characteristic becomes flat so as to reduce a noise overlapping a high frequency range of a video signal. The image displaying system further includes a synchronizing signal generator which provides a phase difference between synchronizing signals to be supplied to a first and second video equipments, thus compensating for a delay time of the high definition television signal encountered in an image dividing unit.

Abstract: A film-pulling apparatus for a packaging machine includes guide plates with arcuate inner surfaces. A cylindrically formed bag-making film material is pulled down inside these guide plates while being adsorbed to their inner surfaces by the negative pressure inside suction vacuum chambers flanking the path of the film material. A pair of pull-down belts is vertically stretched between pulleys adjacent to the path and over the suction vacuum chambers. The belts have many holes such that the negative pressure from the suction vacuum chambers is communicated to the film material through the pull-down belts as the pulleys rotate to pull down the film material. An auxiliary vacuum chamber is connected to the suction vacuum chamber through a normally closed valve such that the vacuum condition in the suction chamber can be quickly restored by opening this valve when an abnormal pressure condition in the suction vacuum chamber is detected.

Abstract: The present invention is concerned with an automatic speed changing apparatus preferably employable for a wheel loader. The subject of the present invention is to assure that no shift-down is carried out even when braking is effected and thereby a vehicle speed is reduced when the wheel loader approaches a dump truck (operation IV) during running of the wheel loader, e.g., along V-shaped tracks as shown in FIG. 4, whereby an operation can smoothly be performed without an occurrence of falling-down of load placed on the wheel loader while preventing an operator from feeling unpleasant. To accomplish the foregoing subject, the apparatus of the present invention is constructed such that determination as to whether or not the wheel loader is approaching the dump truck (operation IV) is made based on the determination as to whether or not lift arms (1a) are raised up to perform a loading operation, and if it is found that the foregoing determination is correct, the current speed stage is maintained.

Abstract: A video signal recording system is provided in which the number of horizontal scanning lines of a high-definition television system video signal is converted to be M times as large as the number of horizontal scanning lines of an ordinary television video signal. The converted video signal is divided into M vertical sections and N horizontal sections so that M.times.N sections of the divided video signal are separately recorded onto M.times.N recording media respectively. In this way, a high-definition television system video signal can be displayed on a plurality of ordinary television receivers without losing the high-definition television system picture quality.

Abstract: A loading/unloading vehicle having booms and a bucket carried thereon such as a shovel loader, a wheel loader or the like vehicle detects that a true bucket-to-ground angle coincides with a preset angle after the vehicle starts automatic turning movement of the bucket. When the coincidence is detected, the automatic turning movement of the bucket is interrupted. Thereafter, a differential value between the true bucket-to-ground angle and the preset angle is determined, if any and then the bucket angle is corrected so as to allow the differential value to be reduced to zero. Consequently, the bucket is held at the preset angle after the bucket stops, even though the booms continue to be turned.

Abstract: An automatic speed changing apparatus for a vehicle for automatically controlling speed change in connection with movement of the vehicle, wherein a hold switch (180) for making a designation as to whether a hold processing, i.e., a processing of automatically holding the gear position (speed stage) of a transmission (160) selected at this time point should be executed or not is provided for a controller (130) for the automatic transmission apparatus independently of actuating levers (111, 112) in the form of a select lever or the like so that the controller executes the hold processing in response to actuation of a hold switch.

Abstract: A load weight measuring system mounted on a construction machine which, in order to prevent overload, subtracts the weight (Wn) of load that is really loaded relative to the predetermined weight (W.sub.o) of load, to display a residual weight (W'n) that can be loaded for each loading operation. The measuring apparatus comprises a second weight display unit (24) which displays an actually loaded weight as the measured weight for each loading operation, a first weight display unit (23) which displays the residual weight (W'n) that can be loaded, and a control unit (7) which controls the display of weight in the first and second weight display units relying upon at least a boom cylinder hydraulic pressure (P) and a boom position (H) as detecting elements.

Abstract: The present invention device relates to a distribution table structure wherein the base end portion of a radiation trough of each head of a combination weighing system having a predetermined number of heads, each having a radiation trough and a weighing hopper connected to the tip of the radiation trough from below through a weighing hopper, are arranged circularly, is connected to the distribution table in the circumferential direction. More particularly, the present device relates to a distribution table structure wherein a tapered cone-like table main body is divided into a plurality of fan-like mutually independent segments in the circumferential direction, each of the segments is supported to a base frame through leaf springs and arranged to be independently vibrated by vibrator means such as an electromagnetic vibrator and moreover, each segment is equipped with separator flanges for its adjacent segments and provided with an independent distribution and supply function.

Abstract: Paint spray guns are cleaned in respective cleaning tanks. In each of the cleaning tanks, a cleaning fluid is ejected to the nozzle end of the paint spray gun by a plurality of cleaning guns disposed in the cleaning tank. The paint spray guns and the cleaning tanks are relatively movable so that the cleaning tanks are retracted away when the paint spray guns spray a paint coat over a desired object such as a vehicle body. Each of the cleaning tanks includes two flexible cover members having holes for inserting the paint spray gun therethrough. The cover members and the inserted paint spray gun close a cleaning chamber defined in the cleaning tank to prevent the cleaning fluid from leaking out. Each cleaning tank comprises a base plate and a casing detachably mounted on the base plate and defining the cleaning chamber.