Abstract: A skin treatment composition or formulation comprising para-aminobenzoic acid, calcium-d-pantothenate, and a tocopherol compound, and desirably a gelling agent, is disclosed, along with methods of applying such compositions for use as a sunscreening agent, or for the treatment of skin ailments, particularly burns. To such compositions, a waxy extract of Kava may be included as a local anesthetic, along with a suitable carrier, such as a mixture of light unsaturated oils with stimulant agents.

Abstract: Copolymer emulsions comprising (1) an .alpha.,.beta.-unsaturated carboxylic acid and (2) methyl acrylate are useful as thickening agents, particularly in acrylic polymer latices. An especially effective thickening agent is obtained when the copolymer emulsion is prepared using the dioctyl ester of sulfosuccinic acid as a surfactant.

Abstract: The invention relates to a detergent composition comprising a low-foaming, non-ionic surfactant and a synergistic hydrotrope mixture. The hydrotrope mixture is composed of two classes of organic phosphate esters A and B wherein A is the reaction product of a compound of the formulaR -- OCH.sub.2 CH.sub.2 --.sub.n OHwherein R is alkyl, aryl, aralkyl, or alkaryl and n is 1 to 10, with phosphorus pentoxide and B is the reaction product of a compound of the above formula with polyphosphoric acid. The weight ratio of A:B is 1:9 to 9:1. The composition may further comprise an alkaline builder.

Abstract: An apparatus for developing high resolution photosensitive diazo plates by exposure to ammonia vapor is provided.

Abstract: Terpolymer emulsions comprising (1) an .alpha.,.beta.-unsaturated carboxylic acid (2) an alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid, and (3) an amide of an .alpha.,.beta.-unsaturated carboxylic acid or styrene or a derivative thereof of the formula ##STR1## in which R.sub.2 is hydrogen, methyl or ethyl are useful as thickening agents, particularly in butadiene-styrene latices.

Abstract: 2-Chloro-2,3,3-tribromo-1,4-butanediol and processes for producing same by reacting dibromobutenediol in a liquid medium with bromine and chlorine.

Abstract: Copolymer emulsions comprising (1) an .alpha.,.beta.-unsaturated carboxylic acid and (2) methyl acrylate are useful as thickening agents, particularly in acrylic polymer latices.

Abstract: A portable microform reader is provided with a microform carrier and a projection system for projecting an enlarged real image of the information carried on a portion of the microform onto a viewing screen. A binocular magnifying system is arranged for viewing the screen and for further enlarging the image thereon to produce a virtual image of acceptable reading size. The projection system comprises a source of illumination, a condenser lens, and a projection lens for projecting an image of the information carried on the microform onto the screen. The magnifying system may consist of appropriate binocular lenses where such lenses, in combination with prismatic converging means, produce the desired magnification. Beam splitting means may alternately be provided to eliminate the need for prismatic converging means, and a mirror arrangement may be provided to "fold" the projected beams for further limiting the size of the reader.

Abstract: The apparatus of the present invention comprises at least one hole-punching device operated by a pneumatic cylinder for driving a punch rod through the peripheral surface and radially to the center of a roll of roofing sheet material. The method of the invention provides for the steps of preparing the sheet roofing material, winding the sheet into a roll, and punching a plurality of perforation holes in the roll from the surface to the center thereof.

Abstract: The mechanism for varying the diameter of a body in accordance with this invention is defined by a mechanism in which the grip area intended for expansion comprises a plurality of compressible O-ring elements supported by a cylindrical body section and spaced apart by spacer elements. A stationary end plate which may be formed by the tip portion of a writing implement, forms an abutment against which an end O-ring will be forced for compression. An axially movable adjustment member is also carried on the cylindrical body for engagement with the opposite end O-ring so that as the adjustment member is moved toward the abutment member the plurality of O-rings therebetween will be compressed so that their cross-sectional shapes will be deformed from circular to elliptical thus enlarging the overall outside diameter of the grip portion.

Abstract: A multiple, potentially variable message printing method is disclosed which comprises: storing desired message information in a computer system; moving a single, continuous strip of paper in the direction of its long axis across printing means operated by said computer system to print the desired message information on the continuous strip; and thereafter folding and severing the single strip of paper to form a plurality of separate, sealed envelope units, each carrying a specific message which may be of variable content if desired. Alternatively, separate paper sheets are processed through such a computer system and then folded into separate message units.

Abstract: The present invention is directed to a transparency projector, such as a slide or motion picture projector including a compact focusing mechanism having an objective lens carried within a lens barrel supported within a sleeve which is carried within the projector housing for axial reciprocal displacement along the optical axis. The sleeve is provided with means for engaging a guide rod supported within the projector housing for limiting movement of the sleeve to axial movement. A reversible electric motor is supported on the sleeve for movement therewith and is energized in response to slide position error signals received from an automatic focusing system of the type well known in the art. The electric motor operates to drive a disc rotatably carried on the sleeve. The disc is provided with a spiral groove on one face.

Abstract: A tone-arm generally in the form of a unitary right-angle member has first and second arms extending at approximately 90.degree. to each other. A needle is supported by one of the arms, the other arm being connected to a stem which is in turn connected to the speaker diaphram for vibrating the latter when the tone-arm is vibrated in its own plane as a consequence of the needle engaging the grooves of a phonograph record. A fulcrum supports the tone-arm for pivoting movement in its own plane; this fulcrum also permits the arm supporting the needle to move in a second plane parallel with the record. Spring means hold the tone-arm in engagement with the fulcrum and at the same time maintain the needle in engagement with the record. A camming means operated by advancing mechanism for a transparency holder separates the needle from the record during indexing of the needle to the separate successive messages on the record.

Abstract: A multiple, potentially variable message printing method is disclosed which comprises: storing desired message information in a computer system; moving a single, continuous strip of paper in the direction of its long axis across printing means operated by said computer system to print the desired message information on the continuous strip; and thereafter folding and severing the single strip of paper to form a plurality of separate, sealed envelope units, each carrying a specific message which may be of variable content if desired. Alternatively, separate paper sheets are processed through such a computer system and then folded into separate message units.

Abstract: A simulated exterior surface assembly for creating the appearance of brick, stone, or the like. A sheet of plastic material, preferably vinyl, is provided with a series of simulated brick face sections or the like, defined by lines of weakening, where such sections are separable one from another by ordinary flexing. The sheet is provided with a peel-away self-adhesive allowing the simulated sections to be readily adhered onto a suitable undersurface. An optical arrangement includes the use of a mortar colored vinyl self-adhering backing material which is first placed on the undersurface and thereafter the individual simulated sections are suitably disposed thereon.

Abstract: A method for the contrast enhancement of an electrostatic latent image in a TESI-type system or the like, which comprises positioning a photoconductive member adjacent a dielectric surface, and applying an electrical potential between the photoconductive member and dielectric surface while irradiating selected portions of the photoconductive member, to cause electric charge formation on selected portions of the dielectric surface corresponding to the irradiated portions of the photoconductive member. In accordance with this invention, the electrical potential is applied as a plurality of discrete pulses, the pulses of applied electrical potential being separated by time periods in which the applied potential is essentially zero. By this method, the relative electric charge density in the selected portions of the dielectric surface is increased over any electric charge density in the portions of the dielectric surface which do not correspond to the irradiated photoconductive member portions.

Abstract: The apparatus of the present invention comprises at least one hole-punching device operated by a pneumatic cylinder for driving a punch rod through the peripheral surface and radially to the center of a roll of roofing sheet material. The method of the invention provides for the steps of preparing the sheet roofing material, winding the sheet into a roll, and punching a plurality of perforation holes in the roll from the surface to the center thereof.

Abstract: An apparatus for developing non-silver halide sensitized photo plates by exposing the plates to wetted ammonia vapor includes within a single compact housing a humidification chamber containing concentrated ammonium hydroxide, a condensation chamber or trap having one common wall with the humidification chamber and apertures therein for communicating with the humidification chamber and a developer chamber having a common wall with the condensation chamber with apertures therein for communicating therebetween. A gas dispersion tube communicates with the humidification chamber for bubbling ammonia gas through the ammonium hydroxide to produce the wetted ammonia vapor. The vapor is conveyed through the condensation chamber where liquid drops are condensed out, and then to the developer chamber where plates may be carried in a rack for exposure to the vapor. The developer chamber has a closable access opening for insertion and removal of the plates.

Abstract: This invention is directed to an information storage card having a vertical rear edge with a series of coded notches for identification and selection. When the card is carried in a pack of similar cards the rear vertical edge of each card is aligned so that the notch coded edge of each card is similarly positioned for selection. Accordingly, the selection means of an appropriate card sorting apparatus will be provided with code bars to engage the aligned vertical edges of the cards to distinguish certain selected cards from the remaining cards of the pack. A further notch is also provided in the top of each card which is defined by a vertically extending abutment edge intended to be engaged by means on the apparatus to prevent forward movement of that card.

Abstract: A racket for use in games such as tennis, badminton, squash paddle ball, etc. having a head and a handle which may be detachably connected to said head at a throat. The head comprises a frame defining a stringing or ball contact area and a throat connected with the frame. The handle has an axially extending rotatable member, such as a threaded bolt. The bolt may extend beyond the handle for attachment to the head. An internally threaded insert is carried by said throat for receiving the bolt so that the handle may be secured to and detached from the head. Guide pins are provided on the handle for engagement with the throat so that the handle will be properly aligned with the head. Grip expanding structure is carried within a partially hollow handle so as to vary the diameter of the handle. The expanding structure includes radially movable wall plates and a rotatable element such as a rod axially carried within the handle.