Abstract: A weft transfer device having special configuration of leading and drawing pincers for inserting the weft in a shuttleless loom. The device includes a leading pincer having a boxlike body shaped to offer the entrance at high speed of the wefts and smooth sliding of the warp threads and a rigid and semi-rigid grasping surfaces, the semi-rigid surface being pressed toward the rigid surface by two independent leaf springs engaging the lateral edge of the semi-rigid surface blade. The drawing pincer includes a lower fixed grasping member and an upper hook-shaped member pivoted to the lower member and forced into engagement therewith by a leaf spring.

Abstract: Shaped articles comprising a branched, high molecular weight poly(alkylene terephthalate) polyester resin and obtained by providing a molten, self-supporting preform of the resin, shaping the molten preform into a final form and allowing the shaped preform to cool to structural rigidity.

Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1##wherein: ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.

Abstract: The machine intended for printing two lines of characters of different color (8, 9) on self-adhesive labels comprises two printheads mounted in a rocking housing (7).This housing comprises two holding elements (14, 16) engaged in two guide slots (17, 19), and a drive finger (15) engaged in a fork (18) of a drive lever (13) actuated by a trigger (3).The slots have shapes which are so adapted that upon the printing impact of the two lines of characters on a print platen (12) the rocking of the housing is transformed into a translation which is not affected by the play and movements of the drive lever and is oriented towards the print platen.Two inking rollers of different color (22, 23) are mounted in a common retractable support (24) by means of a mechanism (26, 29, 30) intended to assure the selective inking of the two lines of characters.

Abstract: A mooring buoy structure for tanker ships is disclosed which comprises an anchoring block secured to the sea bottom, a vertical structure for supporting piping which conveys crude petroleum and like fluids from and to the ship, and a swinging arm installed above the anchoring block and fastened to a structure capable of being rotated about the buoy axis to orient the mooring arm, the latter also being capable of limited vertical rotation in a vertical plane.

Abstract: Ortho-alkylated phenols are prepared by reacting phenol unsubstituted in at least one ortho position with an alcohol in the presence of an ortho-alkylation catalyst consisting of magnesium carbonate, magnesium hydroxide or a mixture of both. The catalyst is used in the absence of a promoter compound and with or without polymeric binder.

Abstract: Weft inserting and withdrawing grippers for a shuttleless weaving machine are disclosed, wherein the weft inserting gripper has a clamping member composed of pivoting blade-type foot biased by a spring and mounted in such a way that the foot bears against a horizontal gripping surface at an angle nearly equal to the complementary of the angle of friction between the yarn and the gripping surface. The gripping member of the withdrawing gripper has a hook with a wedge which can be axially slid towards and away from the hook to seize and hold the thread, or to clear it. The axial sliding motion of the wedge is controlled by a linkage which is resiliently biased by a spring.

Abstract: A composition comprising a nucleosidic anti-tumor agent esterified with a carboxylic acid-containing steroid is described. These steroid ester derivatives of, for example, a deoxyuridine compound provide enhanced anti-tumor effects in chemotherapy as compared to the corresponding nucleosides alone.

Abstract: A process for producing a sintered silicon carbide composite includes the steps of forming a first dispersion of diamond crystals and carbon black in paraffin, as well as forming a second dispersion of carbon fiber, carbon black and filler in paraffin. The two dispersions are compacted together to form an integral bi-layer composite which is then subjected to a vacuum for a period of time at a temperature sufficient to vaporize essentially all of the paraffin. Silicon is heated to cause liquification and direct infiltration into both layers of the composite after which the composite is sintered under conditions sufficient to produce a .beta.-silicon carbide binder uniting the composite.

Abstract: A flanging system for suspending casing and tubing columns for very deep, high pressure oil or gas wells having superimposed spools with adjacent outer flanges for joining the spools, and hangers having axial cylindrical bores therethrough. The spools include inner annular horizontal projections and depending frusto conical portions and the hangers have corresponding outer horizontal annular projections which rest on the inner projections of the spools and complimentary depending frusto conical shapes for positioning within the spools. The lower ends of the hangers are threaded for connection to the columns. In addition, the system has inner and outer seals, wherein the inner seal includes an annular steel ring in a seat in the top of the hanger and a counter seat in the spool immediately above the hanger, and wherein the outer seal includes an annular metal gasket between the projections and preferably annular gaskets in the frusto conical portion of the hangers.

Abstract: A pliable metallic joint for underwater pipelines laid at great depths, having a bellows-like section of a pliable metal or alloy, which is externally reinforced by a sturdy metal wire coiling positioned in the grooves of said bellows and which is internally reinforced by interlockingly arranged U-shaped rings and an axial undulated circular spring that allow a high degree of deformation and facilitate joining two pipes.

Abstract: Flame-retardant thermoplastic molding compositions having improved physical and electrical arc track resistant properties are provided, the compositions comprising an intimate admixture of(a) a high molecular weight poly(1,4-butylene terephthalate) homo- or co-polyester,(b)(i) a copolymer of ethylene and vinyl acetate in combination with an aromatic polycarbonate;(ii) poly(ethylene terephthalate); or(iii) reinforcing glass;(c) a flame retardant agent; and(d) a mineral filler.

Abstract: The machine is intended for the printing of selected characters on self-adhesive labels (5) forming a continuous series borne by a support strip (8).The inner circuit of this strip passes via a loop defined by an edge (11) at the level of which each label (5), after printing, is advanced by a step corresponding to its length, is separated from the support strip, and is directed below a pressure roller (12) in order to be glued by pressure onto an article to be labeled.In order to prevent the falling of the printed label before its gluing and in order to present it flat below the pressure roller (12) there are provided a cambering device which comprises two guides (20, 21) between which the label is stiffened by cambering in the direction of its displacement and the pressure roller itself, under which the edges of the label which have been raised by the cambering are brought downward.

Abstract: This invention relates to coating compositions prepared by prehydrolyzing the silane function of a silylated ultraviolet radiation screening compound and adding it to an aqueous silicone resin composition. Hydrolyzing the silane function renders the ultraviolet screen a silanol which is a compatible component in the silicone resin compositions contemplated.

Abstract: L-carnitine is prepared by a synthesizing process starting from D-mannitol. The synthesis is started with the formation of a D-mannitol ketonide (more specifically D-mannitol acetonide from D-mannitol and acetone, whereafter the D-mannitol is split by oxidation to give glyceraldehyde acetonide, which is further reduced to glycerol acetonide. Then the free hydroxyl group is exchanged with a halogen atom (chlorine) with the formation of chlorodihydroxy propane, the primary alcoholic group of which is functionalized with the acid chloride of a sulfonic acid (tosylchloride). The reaction of the tosyl derivative with the salt of hydrogen cyanide leads to the formation of the corresponding nitrile which, when reacted with trimethylamine gives carnitinonitrile. The nitrile group is now hydrolyzed to give L-carnitine chloride. The formation of L-carnitine can then be obtained by exchanging the chloride ion with a hydroxyl ion.

Abstract: An improved silicone resin abrasion resistant coating composition is provided, the composition comprising a dispersion of colloidal silica in an aqueous-organic solvent solution of the partial condensate of a silanol and a small amount of a polysiloxane polyether copolymer, said organic solvent comprising a mixture of water miscible polar solvents which are aggressive to plastic.

Abstract: A finishing insert for use with an indexable cutting tool is formed from a flat wafer of cutting material which is generally polygonal in plan form and includes a pair of opposed faces and a plurality of upstanding side walls extending therebetween. The juncture of the side walls with each face defines the cutting edges of the insert. The polygonal insert includes a plurality of radiused corner portions and is provided with at least one non-planar insert face wherein the corner portions thereof slope inwardly towards the opposed face of the insert. Each corner portion further includes a pair of generally triangular chip grooves separated by a planar central triangular land area. Each chip groove is spaced from the peripheral cutting edge of the insert to define a side land area which increases in width from the corner portion to its opposed end. In addition each chip groove increases in both width and depth from the corner portion to its opposed end.

Abstract: In a textile loom, the invention comprises a device for varying the speed and the tension of unreeling the warp threads from the warp beam. The device essentially includes a set of interchangeable spur gears connected to the warp beam which cooperate with a system of variable-race sheaves so that when a sheave has its race becoming narrower, the other sheave has its race widened and vice versa. Proper linkages are also provided to ensure that there is always a constant balance between the tension of the warp threads and the speed of rotation of the warp beam. Consequently, as the diameter of warp threads on the beam is decreased and the speed of the warp threads is concurrently decreased, the device imparts a pull increase to the warp threads so that the unreeling speed of the threads from the warp beam is automatically brought back to a preselected constant value.

Abstract: To solve pollution problems in electrolytic cells for the production of zinc by electrolyzing a solution of a zinc salt, shielding baffles are provided above the cell anodes, the gap between adjoining baffles being such as to provide a satisfactory tight seal while permitting the evacuation of noxious gases and mists through manifolds formed through the cell walls.

Abstract: A process is disclosed for removing hydrogen sulfide from fluid, particularly geothermal steam. Carbonic acid is sprayed into a condenser to inhibit dissolution of hydrogen sulfide into the condensate and maintain the hydrogen sulfide in gaseous form.