Abstract: A reusable concave container for carrying and cooling canned beverages having a bottom section containing a plurality of cylindrical compartments, a top section containing corresponding compartments having a slow warming cooling gel in the upper end thereof, and a shoulder strap for carrying the container.

Abstract: A pressure-sensitive lock for sliding windows and doors has rotatable eccentric cam means adapted to be mounted on the sash of a sliding window or door so as to engage the adjacent window frame when the cam means is rotated into the locking position. The lock also has a pressure block for mounting on the opposite side of the window adjacent the frame, such that when the cam means is placed in locking position against the frame, the sliding window is forced toward the opposite frame and the pressure block is thereby wedged against the frame to prevent the window from opening.

Abstract: A collapsible, inflatable boat is provided having two large inflatable tubes as hulls connected together by a floor raised above the midpoint of the hull tubes and supported by spaced-apart, laterally-extending rigid members flexible connected thereto. An inflatable, semi-tubular chamber is disposed beneath the floor and extends longitudinally of the boat midway between the hull tubes. A hinged, rigid transom is provided at the rear of the boat, and a forward end member closes the front of the boat to permit collapsing of the boat to a relatively small package without having to remove any parts from the boat.

Abstract: An adjustable emergency fan belt is provided which substitutes in an emergency as a fan belt. The emergency fan belt has a plurality of belt links that may be used in any combination with a main belt to produce a belt of various lengths. Installation of the belt around the fly wheels is relatively simple and requires no mechanical skill or tools.

Abstract: An adjustment wedge having means for verticallay adjusting the wedge in a double clip member of an optical lettering guide provides adjustment of the angular relationship between a tinted transparent window card held in one clip of the guide and an image-producing card held in the other clip. The adjustment wedge is used to precisely adjust the angle between the window card and the image-producing card to match the angle between the window card and the drawing surface. Following such adjustment, the card image appears to be superimposed exactly on the plane of the drawing surface.

Abstract: The self-propelled irrigation apparatus of the invention has a self-propelled trolley means mounted on water-carrying pipe means disposed in an area to be irrigated. Valve means actuated by depressable levers are disposed in spaced-apart relationship along the upper side of the pipe means. Valve-actuating means mounted on wheels within the trolley means more along with the trolley to lower over each valve means to depress the actuating lever and open the valve means. Water flows from the pipe means through the valve actuating means to a receptacle means. A distribution system carries the water from the receptacle means through sprinklers or the like to the area to be irrigated.

Abstract: Prior known enclosed conveyors have had a conventional belt conveyor mounted on a structural framework resting on a series of support columns known in the art as bents. A housing or gallery, as it is known in the art, consisting of a roof, side walls and optionally a floor, is constructed on structural members around the conveyor covered by a protective material. Often times, the housing is large enough to accomodate a walk-way alongside the conveyor. In each instance, however, both the housing and the conveyor are supported by structural members and not by the protective covering material of the housing. There have been instances of short spans of enclosed conveyors using solid longitudinal members as side and top walls as well as for support, but these spans have no internal stabilizing members to prevent undesirable distortion of the conveyor housing.

Abstract: A reusable lightweight foundation window form is provided for use in poured concrete walls providing adjustment of the form to various thicknesses, convenient installation and removal, and a means for inserting different styles of doors, windows, and the like. Adjustment is accomplished by the use of tubular spacers of various lengths disposed between corner braces of the opening form.

Abstract: An Adjustable Dental Bridge Firing Stand that is adjustable to hold all sizes, shapes and types of dental bridge frameworks; which need to be moved, placed in and held in a dental porcelain oven, or to be held during the various stages of firing the applied porcelain to complete a finished dental bridge.

Abstract: A rip cord safety device providing an easy escape means from wading boots filled and drawing the wearer beneath the water. The rip cords are positioned so as to open the wading boots from toe to top with a single upward pulling motion.

Abstract: A process for hydrometallurgically recovering copper from concentrates of chalcopyrite and other sulfide and mixed sulfide ores utilizes the pretreatment step of fine grinding of the concentrates coupled with subsequent leaching steps. As a pretreatment for the copper-containing concentrates, the concentrates are ground, preferrably with an attritor-type grinding device, to reduce the particle size of the copper bearing concentrate to one micron or less in size. The finely ground copper concentrate is then leached in an acidified ferric sulfate solution to recover the copper contained therein. Following the leching step, a solid-liquid separation is effected. Elemental sulfur may be recovered, and iron removal is achieved by crystallization of iron salts. Ferrous ion is then oxidized to ferric ion for recycling to the leaching step.

Abstract: A novelty postcard and method wherein a thermocontractive plastic plate is initially adhered to a backing sheet in the form of a postcard. The thermocontractive plastic plate is painted or marked with designs, drawings or other indicia. When the card has reached its destination it may be heated in an oven to between 200.degree. and 400.degree. F., whereupon the thermocontractive plastic plate softens and shrinks to a miniature size to form a novelty. During the heating process, the thermocontractive plastic plate separates from the message-carrying backing sheet which remains substantially the same size as it was before heating.

Abstract: An electrolytic cell comprising a rectangular tank divided into a plurality of adjacent compartments by a plurality of spaced apart parallel electrode plates. The outboard electrodes may form one pair of the opposite tank walls. Alternate electrodes are of opposite polarity and are connected to matching poles of a direct current source. The intermediate electrodes terminate short of the tank ends so that the slurry or solution may pass around both ends of the electrode as it flows through successive cells. An agitator is mounted in each compartment for reciprocation therein. The agitators are shaped and positioned to direct a predetermined volume of tank contents (slurry) against each electrode, the amount being directed against the cathode and anode respectively may be equal or unequal depending on the metal being recovered and the chemical reaction required at the electrode.

Abstract: This invention relates to an apparatus for cleaning accumulated carbon and other material from the ring grooves of pistons. The apparatus includes a cylindrical housing adapted to accommodate a piston therein, and a plurality of mutually spaced apart cleaning blades disposed along the axial length of the interior of the housing. The blades are adapted to insert into ring grooves of a piston when the piston is placed within the housing. Biasing means are included to urge the cleaning blades into the ring grooves, so that as the piston is rotated with respect to the housing, the blades can clean out accumulated carbon and other foreign material. The apparatus also includes means disposed within the housing for holding the piston snugly within the housing to prevent radial displacement of the piston as it is being rotated within the housing.

Abstract: This invention relates to a grouting tube for packer designed to prevent back-flow of cement grouting material past the grout packer out of the grouting area. The grouting tube is comprised essentially of an innertube constructed of steel or like material through which the grouting material is designed to flow. The inner tube has threaded nut means disposed a distance from the upper end of the tube on reverse threads. At the other or lower end of the tube, a retaining ring means is disposed and attached to said bottom end by means of rivets or the like. Concentric with said inner tube and disposed between said ring and said nut means is a series of alternating frusto-conical tubes and flexible frusto-conical leather caps. The caps are designed to act as seals between the grouting tube and the walls of the grout hole to prevent backflow of grouting material.

Abstract: A heel ski boot binding for mounting onto a conventional snow ski is adapted to receive and releasibly maintain the heel of a conventional ski boot during normal skiing operations and to release the boot heel upon application of a predetermined vertical, lateral or torque force through the heel against the heel binding. The heel binding incorporates a biased clamp member that is compressed into a locked attitude against a top edge of the ski boot heel but can be released upon application of a predetermined vertical or torque force. The heel binding also incorporates one or more adjustable biased roller members adapted to be urged against the ski boot heel to secure the heel in position against the ski. The roller members release the ski boot when a predetermined lateral or rotational force is applied through the boot heel to the roller members. The biasing means of the roller members and clamp members are manually adjustable to set the amount of force necessary to overcome the bias and release the ski boot.

Abstract: An artificial fireplace log containing pyrogenic coloring matter which produces colored flames upon ignition of the log continuously until the log is consumed. The log is composed of combustible materials, preferably sawdust and wax, and contains pyrogenic coloring matter distributed throughout the log mix. Additional pyrogenic coloring matter is adhered to the surface of the log, preferably along two adjacent longitudinal sides corresponding to the top and front of the log as it is positioned in a fireplace. The process of the invention includes the steps of preparing an artificial log mix containing pyrogenic coloring matter, molding an artificial log with the mix, and adhering pyrogenic coloring matter, preferably in the form of dry, finely-divided particles, along the surface of the log.

Abstract: A biological preparation, method of preparation, and method of treatment of animals as concerns squamous cell carcinoma, known commonly as "Cancer Eye". Used in the preparation of the biological product is tumorous tissue, or culture thereof, obtained from a so-diseased animal. The tumor is introduced into and homogenized in a hypertonic metallic salt solution containing both an adsorbing agent and also a suspending agent. Temperature of the material must not rise during homogenization above 60.degree. C. The homogenized tumor tissue mixture is allowed to stand, with occasional mixing preferred. Certain additives produce useful material which is suitably processed and introduced into an injection medium.

Abstract: An oil-retaining boom structure for disposition upon a body of water, preferably surrounding an off-shore oil well has a plurality of bouyant float members movably connected together by a connecting cable which extends through the body structure of each float member. Each float member comprises an elongate housing having weights disposed in one end thereof adapted to retain that housing end downward in the water. The floats are interconnected with each other through the connecting cable with washer means surrounding the cable between the adjacent floats. The washer means preferably have grooved means surrounding the circumference of the washer to accommodate elongate rods which can be used to retain portions of the boom in parallel relationship if desired to form a channel for the oil within the boom. The floats have sheet means attached to at least one side thereof extending along the boom to retain the oil on one side of the sheet means as the boom rides at or near the surface of the water.