Abstract: A brake having first and second brake support means; a brake shoe mounted on each support means intermediate the ends of each support means, each support means pivotably being mounted at one end to a fixed frame, a first spring means mounted to the other end of the second support means biasing the first and second support means, and thus the brake shoes toward each other in a braking action. First actuating means are connected to the second support means and act against the first spring means to maintain the brake shoes in a non-braking position and selectively operable to release the first spring means. A third brake support means is pivoted to one of the first and second brake support means, the third brake support means being also connected to one of the brake shoes.

Abstract: A method for use in packaging compressible material in flexible-walled containers. The method comprises loading the container in a holding means having rigid means for confining the container to a desired, filled shape and then moving the holding means in sequence past work stations where the container is filled with compressible material, the material is compressed, the filled container is closed and the closed, filled container is removed from the holding means.The invention also includes apparatus for carrying out the method.

Abstract: A substantially rectangular building block having means, for use in interlocking the block to other blocks, in at least one and normally both end walls and in the center of the block. The interlocking means comprise tapered dovetail slots in the end walls, extending over the height of the end walls, and a double dovetail-shaped, tapered through opening in the center of the block. The invention also covers a wall built from these blocks using locking pins which cooperate with the interlocking means.

Abstract: An apparatus for sequentially treating one or more specimens of cellular material with a plurality of treating liquids. The specimens are mounted in one or more treating chambers and the liquids in storage cylinders. Means selectively connect the storage cylinders to the treating chambers to selectively treat the specimens with the liquids.

Abstract: An apparatus for evacuating manure. The manure is collected in a container in the barn, and then transferred therefrom via a conduit at the bottom of the container by introducing air under pressure into into the top of the container. The conduit leads up to the approximate center of a collecting area to introduce the manure into the bottom of a manure pile at the collecting area.

Abstract: An improved flame retention head assembly for use in the air tube of a fuel burner having a fuel nozzle in the tube. The assembly includes a tubular member having in sequence a conical, cylindrical, and flared section with air-fuel mixing means in the conical section, and air passage means in the cylindrical and flared sections. The size of the air passage means in the cylindrical section can be adjusted. This device with its air level combinations, allows an excess of combustion air of 5 to 15% only, thus resetting in flame temperatures of more than 3,000.degree. F.

Abstract: Tubular sealing joint mounted along the edge of a closure element of an automobile body. It comprises a tubular member made of flexible extruded material and having a longitudinal sealing face coming in contact with another closure element of the automobile body, in closed condition of the closure elements. It is provided with spaced groups of parallel flexible sealing lips extending along the tubular member and contiguously disposed transversely of the tubular member, the flexible sealing lips being intended to compensate localized flattening of the tubular member and being integral with it. Also disclosed is an extrusion head for extruding the sealing joint, comprising a die having a central core and an outer bored body spacedly surrounding the core to define therebetween a passage for the extrusion of an elongated tubular member. The outer body is formed along a portion of its bore with contiguous lip-forming grooves opening into the extrusion passage.

Abstract: A rigid, generally rectangular seat has front and rear leg assemblies pivotally connected thereto, so that the seat can be folded upwardly toward the rear leg assembly, and the front leg assembly can be folded beneath the seat. A pair of L-shaped arms is pivotally mounted on the rear leg assembly, one on each side, and the lower ends of the generally vertical portions of said arms are alignable with the front leg assembly when the chair is erect, and carry locking means thereon engageable with a locking means carried by the upper ends of the front legs. The L-shaped arms hold the chair in its erect position, but either can be released and swung aside to allow sideways movement of a person entering or leaving the seat.

Abstract: An automobile seat belt has a security release mechanism producing automatic opening of the belt after a given delay following an impact. Ends of the belt carry an attachment locked in a slot by two balls held in an opening of the attachment by retractable pins. Retraction of the pins to free the balls and hence the belt is controlled by a clockwork triggered by a spring when the belt tension exceeds a given value.

Abstract: A non-return valve comprising: a pipe for waste waters having a passageway for draining the waters in a downstream direction, a circular seat having a given diameter transversely disposed in said pipe and a housing opening into the passageway directly downstream and laterally with respect to the seat. The housing has an upper wall provided with a guiding strip transversely disposed with respect to the pipe and leaning in the upstream direction. A shutting ball, having a specific gravity lower than the specific gravity of the sullage and a diameter larger than the diameter of the seat is connected with the guiding strip so that the shutting ball can be brought to seat on the seat by floating on the waters in the case of an inopportune upstream back flow and be held into the housing when the waters are flowing in the normal direction.

Abstract: In a pressurized dispensing container, the product to be dispensed is separated from a propelling gas by a flexible inner pocket moulded integrally in a single piece of plastic material with a rigid hollow outer body of the container. The pocket may be moulded as a relatively small tubular blank, which is then blown to form the pocket.

Abstract: A haircutting machine by which a haircut may be performed without need of help from another person or a hairdresser in executing the work. The haircut is attained with the use of the machine, which consists of an oblong metallic plate ending in a handle, that has on each side a series of comb teeth specially formed in various shapes and lengths of teeth. The machine can be adjusted for haircutting in various depths, or to the respective shape of the scalp or any other hairy part of the human body. The possibility of adjusting the machine, as the case may be, can be further regulated by increasing or decreasing the distance between the cutting edge of the blade and the tip of the teeth by a proportionate transposition of the cutting blade along the comb's teeth by attaching the cutting blade on a moving bearer that can be slid along the comb's teeth and also can be fixed at the desired position.

Abstract: Tube squeezing device for deformable tubes of the type containing soft paste, comprising two jaws pivotally connected to each other, each jaw comprising a squeezing cylinder, the tube to be squeezed being held between the two cylinders, and means for providing the rotation of one of the squeezing cylinders thus determining the advancing of the device along the tube. Means being provided for preventing the moving back of the device over the squeezed part of the tube; and further means for providing the disengagement of the tube from the device.

Abstract: A centrifugally operated variable diameter pulley. The pulley has a rotatable axle with a fixed pulley flange, a movable pulley flange and a fixed cover on the axle. Means are provided between the cover and movable flange, which are selectable positionable, to move the movable flange toward the fixed flange at continuous variable speed.

Abstract: Device for sucking the upper layer of polluted water surfaces by proceeding to a selection of polluted floating materials, characterized in that it comprises means adapted to maintain naturally separated polluting materials from water for conducting them into a stocking and collecting chamber before their evacuation.

Abstract: A thermal distribution system for distributing heated or cooled fluid from respective fluid generators to thermal exchangers. The system comprises a regulating-reversing device for selectively controlling and distributing the fluid from and towards the hot fluid generator and the cold fluid generator, and regulating the flow thereof from and towards the thermal exchangers. A degasifying device is connected to the regulating-reversing device for distributing said fluid to the exchangers and for collecting the same from said exchangers. A pumping means is mounted between said degasifying device and said regulating-reversing device for pumping the fluid from the latter to the former.