Abstract: A working device, especially a ramming device for compacting soil, or a hammer, has a crank mechanism for producing a controlled vibration. The crank mechanism is coupled with a set of springs. According to the invention, the crank disk belonging to the crank mechanism is provided with a counter-mass whose center of gravity is shifted around an angle not equal to 180° from the center of gravity of a crank pin on the crank disk, in relation to the axis of rotation of the crank disk. This prevents vibrations which would be unpleasant for the person operating the device from occurring.

Abstract: A refiner disc and segment for a rotary disc fiber refiner which has a plurality of radial fields each having an angular extent no greater than 30° and preferably no greater than 22° for reducing the amplitude and duration of load swings that take place during pumping and holdback cycles. Each field has a refining zone with a refiner groove and a refiner bar and a second zone disposed radially outwardly of the refining zone that changes the direction of flow of stock to reduce stock flow momentum and magnitude of the load swings. Each field can have a third zone radially outward of the second zone that further changes the direction of flow of stock and an infeed zone radially inwardly of the refining zone. If desired, a zone that includes a breaker bar can be disposed radially inwardly of the infeed zone. Where the disc is segmented, the segment has at least three fields.

Abstract: A system for packaging of perishable food products involves initially packaging the food product in a receptacle containing an inert gas atmosphere and sealing a film to the receptacle. The inert gas atmosphere prevents deterioration of the food product subsequent to shipment from a central processing facility. The receptacle includes a sealing flange and a tab portion extending from the sealing flange, to which the film is sealed. To prepare the food product for display at a retail establishment, the tab and the film sealed thereto are removed from the package, to form an opening between the film and the receptacle. An atmosphere exchange operation is carried out through the opening, by inserting a nozzle through the opening and introducing an oxygen-containing gas into the receptacle cavity through the opening. The inert gas atmosphere initially contained within the receptacle is exhausted through the opening.

Abstract: A securing member or tether clip for swagging a table cloth, fabric or other similar material, has a base for gathering the table cloth to form a swag. The base includes a first end and a second end. A first arm is swingably connected to the first end of the base. A male member is connected the first arm, the male member has a neck and a head connected to the neck. A catch extends the arm. A second arm is swingably connected to the second end of the base. A female member is connected to the second arm for receiving the male member. A first hinge is connected between the first arm and the base. A second hinge is connected between the second arm and the base. A hook and loop fastener includes a first portion and a second portion. The first portion is connected to the clip. An augmenting attachment is connected to the second portion of the hook and loop fastener. The second portion connects the attachment to the first portion of the hook and loop fastener.