Abstract: An elastomeric copolyester having a multiplicity of recurring intralinear long chain and short chain ester units connected through ester linkages wherein:(A) about 75-96 weight percent of said short chain ester units are represented by the following formula ##STR1## (B) about 4-25 weight percent of said long chain ester units are selected from units represented by the following formulas ##STR2## wherein G is a divalent radical remaining after removal of hydroxyl groups from a poly(alkylene oxide) glycol having a number average molecular weight of about 400-1100 and a carbon-to-oxygen atomic ratio of 3-4,R is a divalent radical remaining after removal of carboxyl groups from dicarboxylic acids which are provided as a mixture comprising:(1) about 50-90 weight percent terephthalic acid,(2) about 5-25 weight percent of at least one hexacarbocyclic dicarboxylic acid in which the carboxyl groups are attached to the hexacarbocyclic nucleus in a 1,2- or 1,3-relationship(3) about 5-25 weight percent of at least one al

Abstract: A photopolymerizable element, preferably a lithographic plate, is provided. This element comprises a substrate bearing a photopolymerizable layer having a weight of about 1 to about 90 mg/dm.sup.2, said layer comprising:(1) at least one ethylenically unsaturated diester polyhydroxy polyether of the formula ##STR1## wherein R is H or CH.sub.3 ; R.sup.4 is H or an alkyl of 1-4 carbon atoms; n is 1-15; p is 0 or 1; and, when p is 1, R.sup.5 is H or CH.sub.3, and R.sup.6 is H, CH.sub.3 or C.sub.2 H.sub.5 ;(2) an organic, radiation-sensitive, free-radical generating system comprising 2,4,5-triarylimidazolyl dimer and p-aminophenyl ketone; and(3) a macromolecular, organic, polymeric binder.A polymeric image is formed by imagewise exposing the layer to actinic radiation and then developing the resulting image such as by removing unexposed portions of the layer with a solvent.

Abstract: Photopolymerized elements having addition polymerized and unpolymerized image areas comprise a support bearing a layer having hydrophilic or oleophilic polymerized image areas and unpolymerized areas of opposite character, at least one of the image areas having absorbed therein a dye of like character. The dye absorbed photopolymerized elements are prepared after imagewise exposure by leaching out ethylenically unsaturated compound in the unexposed areas and absorbing a dye of like character and solvent carrier for the dye into at least one of the image areas. The dye and carrier mixture are capable of swelling the image areas wherein the dye is absorbed. The absorbed dye is not capable of being transferred from the element. Positive and negative working color copies are produced useful in overlay or projection applications.

Abstract: A method for application of grated cheese to pizza shells is provided including feeding of cheese to a grating station, intermittent grating of the cheese to produce a predetermined quantity of grated cheese particles in a selected pattern and permitting the particles to freely drop, receiving the grated particles in a plane in the pattern as dropped and then discharging the particles from that plane, along a fixed line while transporting a pizza shell relative to the fixed discharge line in a direction perpendicular thereto to thereby collect the particles in the same specific pattern on the pizza shell. This method enables forming of the particles at a stationary point and to then place those particles in the same pattern on a pizza shell which is continuously moving.

Abstract: An improved process for melt cutting ethylene polymers is provided wherein the improvement comprises adding to the melt cutter water a small amount of nonionic or anionic surfactants thereby significantly increasing the agglomeration temperature of the ethylene polymer. This allows for an increase in melt cutting capacity and productivity.

Abstract: A furnace is disclosed for extracting metals of relatively high volatility from compounds containing oxides of metals. The furnace provides uniform heating for the oxides in solid block form together with temperature and pressure control so that the dross does not melt. The furnace includes a lower portion having an insulated lining, an upper bell shaped portion joined to the lower portion to form an enclosed sealed chamber, the upper portion forming a condensation surface for metals, means for extracting heat from the upper portion, and means for controlling pressure within the sealed chamber. The improvement comprises an electrical heating conductor within the lower portion spaced apart from the insulated lining, the heating conductor having spaces to hold the compounds in a solid compressed form and transfer substantially uniform heat to the compounds in the spaces.

Abstract: Mammalian collagenase is inhibited by compounds having the formula ##STR1## wherein R.sub.1 is hydrogen, alkanoyl of 2 to 10 carbon atoms or arylcarbonyl;R.sub.2 is 1-pyrrolidinyl, 1-piperidinyl, 4-morpholinyl, 1-piperazinyl, or 4-alkyl-1-piperazinyl;R.sub.3 is alkyl of 3 to 8 carbon atoms, cycloalkyl, aryl, or arylalkyl; andn is an integer of 1 to 20.

Abstract: An improved annular shaped tire liner which is adapted to fit inside of, around and in contact with a casing of a pneumatic tire and in compression by the casing and a method for preparing the tire liner is described. The liner has a thickness which provides substantial protection against penetration of the tire to the inside of the casing. The tire liner is characterized by having a section which is an annular strip of high pressure and temperature vulcanized and molded rubber, preferably of the type used for bonding to the outside of a tire casing as a tread, with ends joined by a thin section of low temperature and pressure vulcanized rubber. The low temperature and pressure vulcanized rubber is preferably derived from a vulcanizable rubber used to bond the molded rubber to a tire casing and is sometimes referred to as "cushion rubber".

Abstract: A roof gutter of channel shape sheet material, its front flange of greater height than its rear flange, has a series of overflow ports formed in the front flange at a level below that of the top of the rear flange, to prevent water overflowing the rear flange and entering the roof structure, these overflow ports being formed in the bottom part of a continuous longitudinal groove (viewed from the front) formed in the front flange of the gutter, and so the ports are not visible when the gutter is viewed from below.

Abstract: A parabolic reflector antenna, designed to discriminate between incoming and outgoing waves having mutually orthogonal planes of polarization, has a ratio R between focal distance f and diameter D which, for optimum efficiency and cross-polarization decoupling, lies between 0.46 and 0.5 and operation in the TE.sub.11 mode and above 0.6 for operation in the dual TE.sub.11 +TM.sub.11 mode. An associated feed, in the shape of a slightly tapering horn of circular cross-section connected to a waveguide of square cross-section, has a relative aperture .alpha., defined as the ratio between its aperture radius r and the wavelength .lambda..sub.o at the center of the operating frequency band, which in the first instance ranges between 0.52 and 0.6 and in the second instance is given by kR+h with k.apprxeq.1 and h between about 0.1 and 0.15.

Abstract: Sliding door structure including an outer frame, at least one fixed and one movable door panel, and a screen door, said frame including a head having a single, inwardly extending movable door panel guiding fin and all mitered corners which corners include integral, offset abutment structure for insuring proper alignment of the corners in assembly, improved weather stripping at both the top and bottom rail of both the fixed and movable door panels, bottom adjusting structure for the movable door panel, and two-member glazing structure for the door panels capable of resisting high wind force and permitting glazing of the door panels from the inside. The frame and door panels include substantially universal and reversible members to reduce inventory. Resilient bumpers, a weather stop and prowler lock structure permitting locking of the sliding door structure of the movable door panel in a number of selected positions are also disclosed.

Abstract: A charge receptor film element for charge transfer imaging comprising, in order,(a) support, e.g., transparent film,(b) conductive layer, e.g., metal, metal oxide, ammonium chloride salt,(c) thin dielectric layer bearing, e.g., transparent polyethylene terephthalate,(d) opaque dots, e.g., 3 to 50 micrometers in height, covering less than 10% of the total area of layer (c) which provide less than 0.05 background optical density. The element is useful for medical radiography, in eletrophotography, electrostatic printing, etc.

Abstract: Highly filled thermoplastic compositions of improved characteristics useful as sound-deadening sheeting for automotive carpet are obtained by blending about 5-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; about 2-15% by weight of processing oil; and about 50-90% by weight of fine particle size filler. Pellets prepared from these compositions remain free flowing even after storage under load.

Abstract: An optical filamentary material with a thermoplastic optically transparent core and a lower index of refraction sheath is spaced from a protective jacket by a heat shield which thermally protects the optical filamentary material during extrusion and application of a jacketing polymer.

Abstract: A composition useful as a refrigerant comprising a mixture of bromotrifluoromethane (R-13B1) and 1,1-difluoroethane (R-152a).

Abstract: A trailer to be towed behind a vehicle has a convertible trailer hitch mounting on its front end in which a connecting portion of a trailer hitch is detachably secured so either a straight draw bar connected hitch or a gooseneck fifth wheel connected hitch may be used on the trailer. The hitch mounting has an upwardly open frame with forwardly converging thrust plates at its lateral extremities, while the trailer hitch connecting portion has a base plate that seats in the frame and integral forwardly converging side plates that abut the thrust plates of the hitch mounting frame.

Abstract: Optical apparatus, such as head-up display apparatus, for superimposing visual information on an observer's view of a scene or object comprises a substantially flat transmission hologram through which the observer views the scene or object, the hologram being disposed substantially orthogonally to and midway along an axis between the observer's eye position and projection optics so as to deviate light from an image produced by the projection optics to the observer's eye position with minimal field aberrations.

Abstract: A coating composition comprising(a) a binder containing a polysiloxane resin-forming precondensate and an epoxy resin,(b) a dimethylpolysiloxane fluid,(c) a metal salt catalyst, and(d) an inert liquid carrier.The composition forms finishes that have thermal stability, release properties, hardness glossy appearance, and abrasion resistance and are used as finishes for cooking vessels.

Abstract: Furniture disclosed herein is substantially constructed of elongated cylindrical wooden members which are connected together by cove joints including a first such member coved at an end thereof to fit conformingly against the curved surface of a second such member at an angle thereto, a hanger bolt secured in and extending from the coved end of the first member substantially through a transverse bore in the second member, and a drive-socketed flanged cap nut engaging the extending end of the bolt and bearing against the opposite curved surface of the second cylindrical member to adjustably compress the cylindrical members together at their conforming fit to stabilize the joint. The flanged nut has a cylindrical portion containing its threads for entry into the bore for centering it under the nut flange, and the flange has an annular appearance skirt extending toward the curved surface of the second wooden member for cutting thereinto and hiding the undersurface of the flange.

Abstract: Tetrahydrofuran is prepared by reacting propylene and aqueous formaldehyde stabilized with alcohol in the presence of silica sand to form 3-buten-1-ol and chlorinating the 3-buten-1-ol in the presence of Group IA or IIA chloride to form 3,4-dichlorobutan-1-ol which is then treated with a Group IA or IIA base to form 3-chlorotetrahydrofuran which is then hydrogenated to form tetrahydrofuran.