Abstract: A thin flat strip of laminated material is directed through a die which forms it into a tubular member. The longitudinal margins of the tubular member are overlapped and sealed together. Thereafter, the tube is severed from the strip and fed on to a spindle extending outwardly from the face of a rotatable plate. The plate is then rotated through a series of stations in which the outer end of the tube is precisely formed with a series of equally spaced flutes, the flutes are twisted to produce a neck and shoulder configuration, an outsert having the shape of the neck and shoulder of a collapsible container is slipped upon the twisted portion of the tube and sealed thereto and a closure cap is threaded upon the outsert neck. The completed container is then unloaded from the spindle.

Abstract: Disclosed is a process for extracting antimony trioxide from antimony sulfide ore concentrate by solubility differential of the trioxide in lower alkanol solutions of sodium or potassium hydroxide and wherein the total amount of water contained in the concentrate, the alkanol and the hydroxide is not more than 26.52 volume percent of the antimony sulfide content; which process includes treating the ore in the absence of substantial amounts of air with an alkanol solution containing an excess of sodium or potassium hydroxide, basis Sb.sub.2 S.sub.

Abstract: A fixed fishing rod receiving member is provided with an opposed latch member swingably secured thereto. Spaced hookshaped extensions on the rod receiving member underlie the rods and spaced pins extending toward the rod receiving member and carried by the latch member overlie the rods. A block of resilient material is carried between the hooks and the pins to grasp and cushion the rods within the rack when closed. Lock means are provided to secure the rods in place within the device.

Abstract: The remaining useful life of a battery is indicated by a mechanical resilient means for displaying the thickness of the battery electrode. A mechanical indicator shows the electrode thickness at a convenient and visible top area of the battery container. The indicator may be coupled to any primary electrode which changes its thickness during battery discharge. This type of indicator may be used with batteries having opaque containers and nontransparent electrolytes.

Abstract: A camera accessory to receive a cartridge of photosensitive material and direct the said photosensitive material into a camera. A light-tight enclosure having a door therein permits the cartridge to be introduced into the interior of the accessory. The cartridge is provided with a hollow core upon which the photosensitive material is wound. A light-tight bag of plastic material overlies the photosensitive material. After the cartridge is placed within the enclosure and the door closed, an elongated plunger operable from without the enclosure and extending through the door urges the bag into the hollow core thereby uncovering the photosensitive materials for subsequent feeding into a camera.

Abstract: Disclosed is a process for extracting the following metals from ores containing same: iron, copper, zinc, arsenic, antimony, molybdenum, silver, and cadmium. In the process, the ore is concentrated and dehydrated prior to treating with a saturated hydrogen polysulfide or alkali metal polysulfide containing enough sulfur to sulfidize metals present in the ore in their nonsulfide forms and to completely oxidize the metals present in their sulfide form. This separates melt soluble sulfides (Cu, Fe, Mo, Sb, As) from melt-insoluble sulfides (Zn, Pb, Ag, Cd). The former are extracted with water to separate the water-soluble sulfides (Mo, As, Sb and any saturated polysulfide) from the water-insoluble sulfides (Cu, Fe,). The water-soluble sulfides are reacted with a more electropositive metal such as zinc to liberate them from their sulfur. The water-insoluble sulfides are dried and heated with a saturated hydrogen polysulfide or alkali metal polysulfide and the free metals are separated magnetically.

Abstract: A plurality of mirrors carried upon a support is disposed to reflect and focus solar energy upon an absorber or into an enclosure. The mirrors are mounted upon the support to deflect under high wind conditions and thereafter return to their optimum reflecting or focusing position. Simplified control mechanisms are disclosed for following the sun to insure the continuity of operation of the apparatus throughout each day.

Abstract: A fish lure having a hollow body portion formed of complimentary shells pivotally secured together at one end is provided with a fish attracting scent material carried within the lure body. Openings in the lure body are provided at each end to permit water to enter and leave the lure cavity as the lure is pulled through the water, thereby dispersing the scent. A latch cooperating with a hook securing means permits easy access to the lure cavity while holding the shells together while fishing.

Abstract: A combined camera lens cap and lens shade in which a housing having a plurality of swingable flaps thereon is secured to a camera lens. Actuating means is provided to swing the flaps from a closed position where they overlie the front of the lens to form a lens cap to an open position where they extend outwardly from the periphery of the lens to form a lens shade.

Abstract: A projectile for dispensing an aerosol of lachrymating irritant material in which the aerosol material is ejected through a nozzle only after firing from a gun or weapon launcher and has imported within the target area. Safety means is provided to prevent premature discharge of the aerosol.

Abstract: An electrical circuit plug for insertion into a current type socket without breaking the circuit normally connected through the socket contacts. When the plug is inserted into the socket, the plug terminals are connected in series with the output line connected to the socket and a manually variable resistor is connected to the plug terminals. The resistor is then varied to control the volume of a local transducer from a remote location. One of the plug contacts is a resilient conductor which makes electrical connection to one side of the output line.

Abstract: Coal and petroleum oils, flue gases produced by their combustion, and natural gases are desulfurized by reacting with sulfides or polysulfides of hydrogen, sodium, potassium, rubidium or cesium to form the higher sulfur content polysulfides of these metals. After these sulfides have acquired sufficient sulfur in combined form to form sulfur saturated polysulfides, they can be reduced to sulfur unsaturated forms with recovery of elemental sulfur. In their sulfur unsaturated form, these metal polysulfides are used to treat additional quantities of the fossil fuels.The metal sulfides or polysulfides can be used in 1 to 12% aqueous solution or in melt condition. Hydrogen polysulfides are used in their liquid form.Sulfur removal from the fossil fuels takes place by dissolving and/or reacting elemental sulfur, many organic sulfur forms, and water-insoluble metal sulfides in aqueous solutions of alkali metal sulfides or in melts of alkali metal sulfides.

Abstract: A photographic copying device capable of storing, exposing and processing both color and black and white photosensitive material including an exposing chamber which can be made light tight for handling color sensitive material or safelight protected for black and white material. Positioning stops in the exposing chamber make it possible to orient photosensitive material in complete darkness. The copying device can be operated in ambient light through light baffles. The material being photographed may be transparent, opaque or in the form of slides. A slide projector section directs light from the slides into the exposing chamber. A central control panel governs all copying operations.

Abstract: A rigid boom is provided with a cable receiving winch drum and a traction sheave to receive the cable therethrough. The drum is laterally removable from the boom and a latch and split cable guide mechanism on the sheave permits a new drum and cable to be installed on the boom in a short interval of time.

Abstract: A three element varifocal lens system in which the front and back lens elements are stationary and the inner lens is shiftable from the telephoto to the wide angle position. The front lens is negative while the inner and back lenses are positive. The lens system has particular utility for infrared imaging systems.