Abstract: Method and apparatus for quantitatively and qualitatively determining the dust content of fibrous material, in which a representative sample of the fibrous material is opened to obtain individual fibers and release the dust contained therein. The individual fibers and fine dust are separated by a combination of gravity separation and air flow. Coarse dust is separated and collected incidental to the opening process. The dust quantity and quality are determined on a weight basis.

Abstract: The present invention provides an apparatus for cleaning submerged surfaces. In the apparatus two rotary brushes are supported side-by-side by a frame and provided with drive mechanisms to rotate the brushes in opposite directions; the brushes are each provided with a handle such that in use by a diver the brushes may be independently pivoted relative to the frame in such manner that each brush may be inclined towards or away from each other, to control the cleaning action of the apparatus and the movement of the apparatus relative to the surface to be cleaned.The apparatus may also incorporate mechanisms for the application of paint to a submerged and cleaned surface.

Abstract: A drive mechanism for a vibratory machine, comprising an input shaft rotatably mountable on the non-vibrating frame of the machine and adapted to be driven, e.g. by a belt drive and pulleys from a standard electric motor, an output shaft mounted in line with the input shaft on the vibratable part of the machine by heavy duty bearings and a flexible resiliently deformable member in the form of an inflatable bellows located between the input and output shafts and preferably sandwiched between plates mounted on the ends of the two shafts and out-of-balance weights on the output shaft whereby, upon rotation of the input shaft, the output shaft will be rotated at the same speed and due to the presence of the weights will cause vibration of the vibratable part of the machine, the flexible resiliently deformable member ensuring that little or no motion other than rotation is transmitted from the output shaft to the input shaft and hence to the electric motor.

Abstract: The invention relates to a process and a device for controlling the manipulator movements in a forming machine, in particular a hammer-forcing press, operating automatically in accordance with a workpiece program.

Abstract: A carrier made from a one-piece blank comprising when erected a pair of cells with each cell including an end wall. A pair of opposed side walls and a dividing wall opposed to said end wall including handle means therein. Each dividing wall is adjacent and coextensive with a respective dividing wall of the other cell. The bottom walls of each cell are formed by a continuous panel extending from the respective end walls of each cell and a rectangular flap is connected to the bottom edge of at least one side wall in each cell to substantially overlay the bottom wall portion of the cell thereby reinforcing the bottom wall.

Abstract: This disclosure relates to a package forming machine wherein one or more articles are packaged as a unit by the wrapping of a film of shrinkable plastics material thereabout, the plastics material being provided as a continuous web. The machine is particularly adapted to the packaging of plural containers arranged in plural rows. A particular feature of the machine is the provision of draw members to draw the film down between adjacent units with the draw members being carried by an endless conveyor for circulation in a plane which extends transversely of the path of movement of the article being packaged and slopes downwardly in the direction of movement of the articles. The plane of the draw members may be varied in accordance with the height of the articles whereby a basic machine may be adjusted to accommodate articles of different heights.

Abstract: A pancake or crepe making machine which comprises a support structure movably mounted on a griddle.The support structure includes a pair of spaced-apart end members rigidly interconnected by a plurality of laterally extending, spaced-apart members. A lower laterally extending member supports at least one dispenser for dispensing dough onto a surface of a griddle. An upper laterally extending member supports means for actuating the at least one dispenser. Means are provided for advancing the support structure along a length of a griddle on which the support structure is movably mounted. A spreader and leveller means is mounted on the support structure, the spreader and leveller means extending between the spaced apart end members. The spreader means includes a blade, a lower edge of which is spaced slightly above a surface of the griddle.

Abstract: A packaging material having an improved gas permeation resistance, which comprises at least one layer composed of (A) an ethylene-vinyl alcohol copolymer having a vinyl alcohol content of 50 to 75 mole % and a residual vinyl ester content of up to 4 mole % based on the sum of the vinyl alcohol and vinyl ester or (B) a blend of said ethylene-vinyl alcohol copolymer with up to 150% by weight, based on said copolymer, of at least one thermoplastic polymer other than said copolymer, said ethylenevinyl alcohol copolymer having a main endothermic peak satisfying substantially the following requirement:Y.sub.1 = 1.64X + 68.0wherein Y.sub.1 stands for the main endothermic peak temperature (.degree. C.) in the differential thermal analysis, and X stands for the vinyl alcohol content (mole %) in the ethylene-vinyl alcohol copolymer,And at least one subsidary endothermic peak satisfying substantially the following requirement:0.67 X + 76.7 .gtoreq. Y.sub.2 .gtoreq. 0.40 X + 40.0preferably0.67 X + 76.7 .gtoreq. Y.sub.2 .

Abstract: Waste matter is incinerated in a combustion zone external to a rotary cement kiln. The resulting gaseous product is taken up in effluent gas from the cement making process in contact with calcareous material. At least some of the combustion zone bottom ash is combined in the eventual standard Portland cement by firing it in the kiln with the clinker-forming materials. The combustion zone can for instance be a fluidized bed combustor. The combustion zone can be a zone through which the clinker-forming materials pass at a temperature such that the waste matter ignites.

Abstract: The invention provides a double ended thyratron arrangement in which at each end of the thyratron there is a cathode, at least one intermediate grid and a final grid which borders a high voltage withstanding gap. At each end of the thyratron the final grid which borders a high voltage gap is connected to act as a screen electrode, usually by connecting this grid directly to the cathode. At the same time, at one or both ends of the thyratron means are provided for applying triggering input pulses to one of the intermediate grids between the respective cathode and final grid. The thyratron may be of the pentode type, in which case, at each end the final grid is connected to act as a screen, the intermediate grid adjacent the cathode is subject to bias and the triggering signals are applied to the intermediate grid adjacent the final grid.

Abstract: A knitting machine having two opposed arrays of latched needles arranged in respective flat needle beds and means for actuating the needles of the arrays independently in succession along the arrays, the actuating means being borne by a carriage mounted above and movable back and forth longitudinally along the needle beds, the machine further including an elongated restraining element extending longitudinally between the needle beds, a housing to support and contain the restraining element, the restraining element also extending longitudinally between the needle beds, both housing a restraining element being borne by the carriage on a substantially horizontal support member for movement therewith, the element and the housing being relatively movable longitudinally of the needle beds whereby the element can be brought to an operative position projecting from the housing or to an inoperative position retracted in the housing, and actuator means for causing the restraining element to be in its operative position

Abstract: In an electric switch of the kind which comprises in a body a connection means rigidly fastened to a pushbutton and mounted for axial movement for electrical connection to two terminals, and a catch pin mounted for movement transversely in the body for co-operation with a heart cam rigidly fastened to the connection means, the catch pin passes entirely through the wall of the body and from the outside of the body is subjected to the action of resilient means which permanently urge the catch pin into contact with the heart cam.

Abstract: A method of utilizing waste heat from a fuel-fired electrical power generation or steam raising plant, wherein flue gas from said plant is conducted through a heat exchange zone in contact with relatively cool wet material for making Portland cement.

Abstract: In a multi-layer blow molded container having a joint portion at least in the bottom portion thereof, barrier characteristics to gases such as oxygen and water vapor and liquids such as water, solvents, aqueous ammonia and salt water and interlaminar strength characteristics such as interlaminar adhesion strength, peel strength and impact strength in the content-filled state can be highly improved by blow molding a parison of a laminate structure of two or more polymer layers in which the polymer composition is different with respect to the thickness direction of the container wall but substantially identical with respect to the plane direction and each of the polymer layers is continuous with respect to the plane direction, in such a manner that a tapered projection protruding outwardly in the thickness direction of the container wall is formed in the joint portion so that each of the polymer layers is substantially continuous in this joint portion.

Abstract: An implement for holding and guiding pointed elongate fasteners such as nails or studs for facilitating their driving into a surface. The implement comprises a pair of levers which are pivotally mounted and biased to a closed position by a bridging portion. Preferably the bridging portion and the levers are of one-piece molded plastic construction. To one side of the bridging portion the levers have jaws and to the other side thereof handles for opening the jaws. The implement may be temporarily secured proximate to where the nail is to be driven in so as to enable a user having only one `good` hand to drive in the nail.

Abstract: This disclosure relates to a mold construction particularly adapted for the blow molding of hollow articles having configurated bottoms. The mold is split longitudinally of the article and includes first and second halves each having a separate end portion. The end portions are interconnected so that when the mold is open, both end portions are retained with one mold half with one end portion moving relative to its respective mold half both longitudinally and transversely for both moving transversely with a molded article and longitudinally away from the molded article so as to first completely release the molded article from one mold half, and the end portion of the other mold half being thereafter movable longitudinally with respect thereto to separate the other end portion from the molded article and thus permit the ejection of the molded article from the mold. The molds are arranged in end-to-end substantially touching relation wherein there is a minimum of waste material between adjacent molded articles.

Abstract: This invention relates to rockers for mounting on the legs of chairs to convert the chairs to rocking chairs. The rockers are adaptable to be mounted on chairs having different spacings between the legs thereof, and to be mounted on chairs the bottoms of whose legs are connected by bars. The rockers are also adapted to be releasably or permanently mounted on the chairs. To fulfill all these functions, the inventive rocker, which consists of an arcuately shaped elongated member, has elongated openings adjacent the front and rear ends and on the top surface thereof. The elongated openings receive the legs of normal chairs. Extending across the width of the rocker, and over the elongated openings, are grooves which can receive the bars of chairs whose legs are connected by bars. As the openings are elongated the rockers can be mounted on chairs with different lengths of spacing between their front and rear legs.

Abstract: A silk screen printing machine comprises a frame, a pair of parallel spaced-apart levers pivotally mounted on opposed side walls of the frame, and a hydraulic or pneumatic cylinder connected to one of the levers for raising and lowering a pair of parallel bars of which one is connected between a pair of corresponding ends of the levers. A carriage for the silk screen is mounting for translational sliding movement on the bars. A transverse member is provided for supporting a squeegee carrier unit cooperable with the silk screen for printing on an object. A longitudinal bar parallel to the bars carries the transverse member and is secured at its ends beyond the limits of the stroke of the carriage along the bars to connecting links in which the bars are journaled at their ends.

Abstract: Apparatus is described for cold forming cylindrical metal blanks into parts having a central body and radial extensions, such as universal joint spiders and constant velocity universal joint tripod members. Die sectors of shortened axial height in their radial forming and extrusion zone are mounted for quick fastening and release, for example by dovetail connections to die carriers which are in turn mounted on rams displaceable along inclined converging slideways. Guide bushes are provided at the entrance to the through cavity corresponding to the central body and guide a cylindrical blank along the axes of coaxial punches fixed respectively to the plunger and column on the table for restraining plastic flow of blank metal towards the central cavity and then to the radial cavities.

Abstract: The invention relates to a nail driving tool, acting by means of an explosive charge, which, besides the normal component parts, comprises an explosion chamber of particular shape and volume, whereby a blow applied to the rear end of the tool causes the explosive charge, compressed by the rear end of the nail driving piston in the explosion chamber, to reduce the volume of the latter according to a predetermined ratio, which reduction, in turn, originates the ignition of the explosive charge.