Abstract: Operator's cab in a construction vehicle having a pair of front upstanding posts and a pair of rear upstanding posts secured to the chassis of the vehicle. Either one of the forward and the rearward upper side of the cab is forwardly and rearwardly as well as leftwardly and rightwardly swingably supported by either one pair of the pairs of posts while the other of the forward and the rearward upper side of the cab is cushioningly supported by the other pair of the pairs of posts so that the cab is supported by the chassis without transmitting vibrations and impacts from the vehicle to the cab.

Abstract: Mold changing apparatus is disclosed for a press having a slide for the upper mold, a movable bolster for the lower mold and transfer bars for successively transferring work pieces. In exchanging the molds, the upper mold is mounting on mounting members which are raised so as to move the upper mold above the transfer bars, thereby permitting the molds to be moved out of the press by the movement of the bolster without causing interference between the upper mold and the transfer bars held in position in the press.

Abstract: There is disclosed an electrochemical process wherein an electrolyte is passed through one electrode compartment of an electrochemical cell, said one electrode compartment comprising a particulate electrode and being separated from a second electrode compartment of said electrochemical cell containing a counter-electrode by a separator having an ion-permeable wall inclined away from the vertical and towards the particulate electrode.

Abstract: A stylus grinding device for use in a video disc player comprises a rotary grinding disc adapted to be rotated at its center during a grinding operation subject to the pickup stylus. The stylus grinding device is designed such that the amount of the pickup stylus to be ground varies depending upon the duration of actual service performed by the pickup stylus to reproduce video information recorded on a flexible foil-type disc record.

Abstract: A powder coating composition is disclosed for producing a specific or special pattern finish on the surface of a substrate. The composition of the invention is obtained by kneading together a mixture containing principally a thermosetting polyester resin and a minor amount of a thermoplastic cellulose ester resin powder under such temperature conditions that the polyester resin is melted but the cellulose ester resin is not melted.

Abstract: A method comprising the steps of casting molten nonferrous metal ingots, skimming scum foaming on the surface of the molten metal in each mold, cooling the molds to release ingots therefrom, stacking the ingots released from the molds to form ingot stacks each comprising a plurality of layers of ingots arranged in vertically stacked relation alternately in two different patterns, weighing the ingot stacks, and tightly binding the weighed ingot stacks with steel bands.

Abstract: In preparing an epoxy resin laminate sheet by impregnating a nonwoven fabric of glass fiber with an epoxy resin to form a prepreg, laminating a predetermined number of so formed prepregs and pressing, while heating, the laminate, when the nonwoven fabric of glass fiber to be used as a substrate is treated with a liquid mixture containing a water-soluble phenol resin and a silane coupler prior to the impregnation step, a laminate sheet suitable for formation of a printed circuit board can be obtained at a low manufacturing cost. The so formed laminate sheet not only has excellent heat resistance, drilling workability and punching workability at room temperature but also is characterized by such an excellent property that when it is subjected to the boiling water treatment, the degree of reduction of electric properties such as the insulation resistance is very small and whitening of the substrate is not caused to occur.

Abstract: A slide driving device for use in a metal working press having an eccentric sheave capable of effecting an eccentric rotation and an oscillating link member adapted to oscillate in response to the eccentric rotation of the eccentric sheave. A slide of the metal working press is connected with the oscillating link member through a connecting rod. The eccentric sheave is adapted to be eccentrically rotated at uneven angular velocities so that the downwardly moving speed of the slide is reduced relative to the operating speed of the press which is supplied with power from the driving power source.

Abstract: A cylindrical member of the present dental handpiece is provided with a cup bearing held into an opening adjacent its upper end and also with an annular bearing disposed into said opening adjacent its lower end. A metallic member having a substantially inclined bottom face is secured to the cup bearing. A top end face of a bushing having a worm wheel is coincidentally inclined to fit to said inclined bottom face of the metallic member so as to form a cam mechanism. The bushing is formed with an annularly widened opening therein adjacent its lower end to receive a collet chuck and also a screw thread around said bushing, which is rotatably inserted into the cylindrical member through the cup and annular bearings. A reamer is firmly held into the bushing through a collet chuck, and a worm gear is associated with the worm wheel. According to the dental handpiece, the reamer is driven to rotate slowly once at its each vertical mot motion, enabling to carry out a finger touch operation.

Abstract: A stabilized light reflecting iridescent polymeric material is provided. The new material comprises a three dimensional non-contiguous regular structure of uniform polymeric microspheres, wherein the center to center distance between the microspheres is in the range from about 1.500 to about 15,000A. The microspheres are obtained from a cross-linked polymeric latex and have a particle diameter size in the range from about 500 to about 10,000A. The polymeric structure is stabilized by polymerizing the suspending medium. The polymerized suspending medium containing the latex particles has a refractive index relationship expressed by the formula ##EQU1## wherein n.sub.1 is the average refractive index of the polymerized suspending medium, n.sub.2 is the average refractive index of the latex particles, and .alpha. is the degree of swelling of the latex particles in the suspending medium to provide optical discontinuity.

Abstract: A process of producing methyl methacrylate polymers is provided wherein the monomer are polymerized by a bulk polymerization procedure at 150.degree. to 180.degree.C with a conversion of 50 to 80% and the volatiles predominantly comprised of the unreacted monomer, separated from the polymer product, are cyclically reused as a part of the monomer feed for polymerization. In such a monomer feed cycle system, oligomers are substantially removed from the volatiles and then the volatiles are blended with a virgin monomer feed for polymerization, the content in the volatiles of impurities having boiling points of lower than 200.degree.C at normal pressure is maintained within the range of 5 to 20% by weight.

Abstract: A method and an apparatus for removing the heat of polymerization evolved during a polymerization procedure carried out while the liquid polymerization mixture is stirred in a reactor are provided. A condensable vapor present in the space above the liquid level of the polymerization mixture inside the reactor is condensed by a cooling means provided in said space while the inner pressure of the reactor is maintained at a level such that the polymerization mixture does not boil. Preferably, the vapor phase is stirred.

Abstract: A protected container is formed by placing a protective coating of a foamed, heat shrinkable, styrenic resin sheet around at least a portion thereof. Slits are formed in the sheet prior to placing it around the container. After being placed around the container the sheet is heated so that it shrinks thereby making close contact with the container. The sheet is further heated such that the sides of the slits warp to form a rough surface to facilitate handling of the container.

Abstract: A molded article of plastic having on its surface a cured film of a coating material comprising at least 30% by weight of at least one polyfunctional compound selected from the group consisting of poly-methacryloyloxy compounds having a molecular weight of 250 to 800 and containing at least three methacryloyloxy groups in the molecule and poly-acryloyloxy compounds having a molecular weight of 250 to 800 and containing at least three acryloyloxy groups in the molecule, and optionally 0.01 to 5% by weight of a fluorine-containing surfactant and 0.01 to 5% by weight of a carbonyl compound as photosensitizer has improved surface characteristics, particularly a high surface hardness, a high surface smoothness, high heat resistance, high abrasion resistance and a minimized optical distortion. Said molded article of plastic having improved surface characteristics can be prepared by coating the molded substrate of plastic with said coating material to a thickness of 1 to 50.mu.

Abstract: The present invention relates to a binding strap which includes a head portion with a strap body extending therefrom. The head portion includes a strap body insertion hole at the center thereof. A tongue, having a flat bottom face, is joined to the inner wall of the insertion hole by a flexible junction. A support means faces the bottom face of the tongue, and saw teeth are formed on one face of the tongue. The strap body has saw blade teeth on one face thereof for engaging the teeth of the tongue, thus holding the strap body within the head portion.

Abstract: A synthetic resin shaped article having a mar-resistant polymer surface layer integrated with the polymer body is provided. The mar resistant polymer surface layer consisting essentially of, in polymerized form, (a) 20 to 100 wt.% of a compound having a total of at least three acryloxy and/or metharyloxy groups linked with a straight chain aliphatic hydrocarbon residue having not more than 20 carbon atoms (the hydrocarbon residue may contain at least one ether linkage in the main chain) and (b) 0 to 80 wt.% of at least one copolymerizable mono- or diethylenically unsaturated compound.

Abstract: A plastic article having improved surface characteristics comprises a plastic body having adhered thereon a cross-linked film of a composition comprising (A) 10 to 90 parts by weight of a cross-linking unsaturated compound having a molecular weight of M and containing in the molecule N polymerizable ethylenically unsaturated radicals (N being an integer of 2 or more), the ratio of said molecular weight, M, to said number, N, of ethylenically unsaturated radicals (M/N) being about 49 to about 600, (B) 90 to 10 parts by weight of an unsaturated monomer containing in the molecule at least one radical copolymerizable with said component (A) and at least one acid radical, and (C) up to 20 parts by weight of other copolymerizable unsaturated compounds, the total of (A), (B) and (C) being 100 parts by weight, at least a part of the acid radicals contained in the film having been converted into alkali salts thereof, said cross-linked film having a thickness of 5 to 500 .mu..

Abstract: A work rest device for use with a crank pin miller comprises a pair of bodies, longitudinally and transversely movable saddles mounted on a bed, cutter main spindle boxes each having a cutter, said cutter main spindle boxes and said bodies being mounted on respective saddles, pawls disposed within each body to clamp main journal parts adjoining pin journal parts to be cut by said cutter, ring gears, and drive gears each having recesses and disposed within respective ring gear. The pawls are engaged with the respective recesses, and arranged to be moved back and forth by rotating the ring gear. The device further includes work main spindle boxes adapted to carry both ends of the work and having each a chuck. Arrangement is made such that the rotation of the ring gear is in synchronism with that of the associated chuck.

Abstract: Untwisted synthetic resin string comprising two rolled portions each spiral in cross section and formed by inwardly rolling toward each other the opposite side edges of a strip of thermoplastic resin film stretched at least longitudinally thereof. The rolled portions extend longitudinally of the string in parallel with each other and are partially adhered together longitudinally thereof. Also disclosed are an apparatus for manufacturing the untwisted string from a strip of thermoplastic resin stretched at least longitudinally thereof and another apparatus for manufacturing an untwisted string having a single rolled portion from like resin strip.

Abstract: A simulated golf green is provided which comprises a base including a base plate, a plurality of dividers mounted on the base plate which define a plurality of areas on the base plate, a plurality of holes through the base plate, one hole being located in each of the areas, and a plurality of channels mounted below the base plate each of the channels being positioned below one of the holes. A plurality of surface plates are positioned over the base, the surface plates forming a substantially contiguous cover thereover which has the appearance pf a golf green. A plurality of supports are mounted on the base plate, each support supporting one of the surface plates such that the surface plates can tilt with respect to the support at 360.degree. around the axis of the supports.