Abstract: This apparatus is used to compress previously treated meat products prior to packaging. The compression is accomplished by passing square or rectangular portions of meat such as hams along a continuous conveyor and compressing the portions between a pair of rollers having a plurality of blunt teeth above the conveyor and corresponding spring loaded tension plates pressing against the underside of the conveyor.

Abstract: A shoe upper is directly joined to a shoe sole and contoured to a last by stitching a socklining to an upper and providing a mold engaging lip between the lower periphery of the upper and the stitched seam. The stitched socklining and upper are then mounted on a last. The lasted socklining and upper are mounted in a two piece, resilient upper mold and the upper mold is then mounted on a bottom mold having expanding, foaming resin therein with the mold engaging lip resiliently held between the edges of the upper and lower molds. An integrally joined shoe upper and sole are formed thereby.

Abstract: An attachment camera for microscopes, comprising an apparatus for measuring the brightness of an object detail and markings for sighting at least the detail metering field and the image field of the camera in the observation beam. The metering field markings and the image field markings are located on two separate plates, the plate with the metering field marking is defined by a measuring field stop. The two markings differ in size and shape and are simultaneously reflected into the observation beam by means of a photographic ocular located in the picture taking beam and by means of optical components with partly or fully reflecting surfaces located before or after the photographic ocular.A holder (5a) seating in exchangeable manner the photographic ocular (5) is provided between the housing (24) of the attachment-camera and the binocular tube (25).

Abstract: A process for separating sulfonic acids from the reaction product obtained by reacting paraffins with sulfuric acids, oxygen and water in the presence of ultra-violet light where an alcohol is used as an extractant.The reaction product is treated with an aromatic alcohol as the extractant where the general formula of the alcohol is: ##STR1## wherein: R.sup.1 is a phenyl group possibly substituted by halogen atoms and/or alkyl groups with 1 to 6 C atoms;R.sup.2 and R.sup.3 denote hydrogen;n is an integer from 1 to 3; andR.sup.2 may also be a methyl group when n=1.Three phases are formed with the center phase as the alcohol phase. The alcohol phase is isolated from the remaining phases and the sulfonic acids are separated from this center alcohol phase.

Abstract: Self-extinguishing, fine particulate, expandable styrene polymers for the manufacture of molded articles, containing bromine compounds and one synergist. The synergist, referred to the styrene polymer, is at least one hydrocarbon present in amounts from about 0.1 to 3% by weight and forms stable radicals at temperatures above 300.degree. C.

Abstract: A process for the simultaneous manufacture of pure methyl tertiary butyl ether (MTBE) and a substantially isotubene-free mixture of C.sub.4 -hydrocarbons, by reacting the isobutene contained in the mixture of C.sub.4 -hydrocarbons with excess methanol in the liquid phase at elevated temperatures on strongly acid, macroporous, organic ion exchange resins.The process has the following steps:(a) methanol and isobutene are reacted in a molar ratio of 2:1 to 5:1 at temperatures between 30.degree. and 100.degree. C.;(b) the unconverted hydrocarbons are then removed as the top product under a pressure of 2 to 10 bars from a first rectification column;(c) the bottom product from this first column is rectified in a second column under normal pressure or under a slight excess pressure of up to 2 bars at the top of the column, the bottom product of this rectification is recycled to reaction zone (a), if necessary, after separating off a portion of the tertiary butanol formed and the C.sub.

Abstract: Fine particulate expandable styrene polymers have coatings applied thereto by:(a) introducing the fine particulate expandable styrene polymers into a closed mixing vessel;(b) reducing the pressure in the mixing vessel below atmospheric;(c) preparing dispersions of the coating materials and heating the dispersions to about 30.degree. to 90.degree. C.; and(d) aspirating the heated dispersions of the coating materials into the mixing vessel while simultaneously mixing the dispersions with the particulate styrene polymers to form a coating thereon and drying the coated particles.

Abstract: An electromagnetic drive system for actuating the shutter blades in photographic devices, preferably in picture taking cameras, comprises a permanent magnet mounted on a magnetically conductive base plate and a first and a second solenoid on either side of the magnet. The coils of the solenoids are electrically connected and are wound in an opposite sense so that the magnetic poles of the solenoids are opposite to one another. A double armed lever is rotatably supported adjacent one pole of the permanent magnet so as to be pivotable between two end positions. In either end position one arm of the lever rests against the core of the first or of the second solenoid and is kept in this position by forces of the magnetic field of the permanent magnet. When a current pulse is conducted through the solenoids the lever is pivoted to its other end position. One arm of the double armed lever is in a driving connection with the shutter blades.

Abstract: Single pole, triple throw battery selector switches are provided with locks to prevent unauthorized use. Rotation is prevented between the selector knob and housing by having a semi-circular groove with a locking position at the end thereof in the top cover of the battery selector switch and a locking pin projecting from the underside of the selector knob into engagement with the grooves. The selector knob is locked with the batteries disengaged when the locking pin engages the locking position groove by turning a locking cylinder with a key.

Abstract: An optical system for scanning thermographic pictures comprises a rotating polygonal cylinder for line scanning in one coordinate direction. The polygonal cylinder is subdivided into an inner stationary solid cylindrical portion and a ring surrounding the cylindrical portion. The ring is on its outer side provided with the polygonal faces and rotates around the cylindrical portion. The cylindrical portion has a single curved face extending substantially perpendicular to the optical axis. The inner wall of the ring and the curved face define between them a cylindrical air lens element. The shape of the curved face is computed in accordance with the image distortions of the optical system so that the air lens compensates for the image distortions.

Abstract: A process for preparing coating powders based on polylaurolactam for the vitrification coating process beginning with polylaurolactam granulates obtained by polymerizing laurolactam under internal pressure in the presence of 2 to 10% by wt. of water and 0.3 to 0.7% by wt. of phosphoric acid at temperatures between 265.degree. and 300.degree. C., in the absence of chain stabilizers, and which have a relative viscosity of between 1.50 and 1.80. After precooling to temperatures between -50.degree. and 0.degree. C., the granulates are ground and then graded. Extraction with methanol or ethanol is carried out prior to grinding or grading. Pigments are added to the monomerous laurolactam or to the polylaurolactam in the molten state prior to granulation. The powders are especially well suited to manufacture colored powders by the dry-blend process.

Abstract: Gaseous hydrogen chloride is extracted from dilute aqueous hydrochloric acid using amines, by:(a) extracting the aqueous hydrochloric acid with an amine or with a mixture of an amine and an inert, water-immiscible solvent having a boiling point of at least 120.degree. C., tertiary alkylamines being used containing 14 to 36 carbon atoms in the nitrogen-bound side chains, the side chains having at most one nitrogen-bound methyl group and at least one nitrogen-bound aliphatic group containing at least 6 carbon atoms, where the amine acid constant is less than 10.sup.-3 ;(b) adding an inert, water-immiscible solvent having a boiling point of at least 120.degree. C.

Abstract: Method of spot coating garment interlinings comprising a suspension agent for synthetic resin powders comprising an aqueous emulsion wherein there is contained, in a concentration of about 1-7.5 percent by weight:(A) a mixture of about 95-40 molar percent of an aminoamide of the general formula ##STR1## wherein R represents a saturated or unsaturated hydrocarbon group having 18-19 carbon atoms,n represents an integer of between 2 and 6, andR.sub.1 and R.sub.2 represent alkyl groups having 1-3 carbon atoms; and(B) about 5-60 molar percent of a fatty acid or mineral acid salt of this aminoamide.

Abstract: A telescoping dispenser having two interconnecting tray portions. The first tray portion has a tray for receiving a loaf of sliced bread, a guide for a second smaller telescoping tray and a handle for gripping the dispenser above the center of gravity. The second tray portion has a flap hinged at one end with a perforation in the flap for holding the twisted end of a plastic bread wrapper.

Abstract: The optics of the present invention are used for the cartesian scanning and reproduction of large image fields.The optics have at least two roof prisms oscillating to and fro perpendicularly to the direction of their roof edges, for the purpose of writing the length of the image line and a conventional optical means is provided behind the roof prism, as seen in the direction of the incident light, for writing the small image angle ( =image height).

Abstract: An improvement in the process for obtaining gaseous hydrogen chloride by extracting dilute aqueous hydrochloric acid with amines wherein:(a) the aqueous hydrochloric acid is extracted with an amine or a mixture of an amine and an inert, water-immiscible solvent boiling at not less than 120.degree. C., using tertiary alkylamines which contain 14 to 36 carbon atoms in the nitrogen-bonded side chains, which side chains include at most one nitrogen-bonded methyl group and at least one nitrogen-bonded aliphatic radical containing at least 6 carbon atoms, the acid constant K.sub.a of the amine being less than 10.sup.-3 ;(b) an inert, water-immiscible solvent boiling at not less than 120.degree. C.