Abstract: Apparatus and method for removing and/or installing valve-spring retainer assemblies of internal combustion engines and the like employ an existing spark plug opening to mount a tool which is designed to depress a valve spring and thereby disengage an associated valve-spring retainer assembly. Once it has been disengaged, at least a portion of the valve-spring retainer assembly can be removed from a cylinder head of the engine through the tool.

Abstract: A method and apparatus for fragmenting waste water sludge particles to destroy sludge particles and to enhance a dewatering process performed on the sludge. Sludge is passed through a slotted rotor that centrifugally propels the sludge through slots in a surrounding annular stator. Sludge particles forcibly impact against the side surfaces of the stator slots to fragment into smaller sized particles. During the fragmentation process water located in the pores of the sludge particles is released. The free water can later be separated from the sludge in a dewatering apparatus. When passing through the rotor and stator slots, organic cells are broken apart and a portion of each is converted to dissolved sugars and proteins.

Abstract: A bottle includes at least two sets of handles, each set being adapted for gripping by an infant or a child. The handles are formed integrally with the bottle by a plurality of elongated, trough-like recesses provided in an outer surface of the bottle and extending along substantially the entire length thereof.

Abstract: The core of the wall construction is formed by the four layers, fibreboard (1) with inside surface coating (5) of cement, acoustic barrier layer (2) made of flexible, fibrous material, particle insulation layer (3) made of loosely blasted-in wood particles and outer covering layer (4). By this specially developed construction, a non-load-bearing external wall of a building is achieved, which has an excellent heat and sound insulation, a great heat-retention capacity of the inner layer and a fire resistance value of at least F30 despite the light construction method. The wall construction can be provided on the inside with an additional layer (6) which enhances the heat conduction and increases the conduction of heat given off by a heating device (7) into the heat-retaining fibreboard (1).

Abstract: An infant walker adapted for use in a substantially stationary location has a frame or base and an infant seat attached thereto such that it can be manually or automatically revolved in an orbital manner. The seat can also rotate about its own axis of rotation, whereby an infant who is in the seat can walk along a circular path and/or turn in place. The seat can also reciprocate in an up and down fashion to permit an infant seated therein to jump up and down.

Abstract: A device for suspending T-shaped tools from a belt, toolbox, wall, or other mount, comprising a flat attachment material and a rotating holder body which secures the tool while allowing the tool to be inserted and removed from different angles. In order to ensure that the holder body stays in a useful position, its swing is limited by two stops which act as brakes and are affixed so as to protrude perpendicularly from the attachment material. The invention is designed so that after the tool is inserted into the holder, the head of the tool remains secured by the cantilevering action of a spring-loaded clip against a dead-lock arm extending downwards from the holder body. The opposite end of the tool rests on an L-shaped extending at right angles from the attachment material. The tool is removed by the natural motion of grasping the handle and swinging upwards. This results in the tool being held in an immediately usable manner as it is withdrawn from the holder.

Abstract: The tunnelling machine for driving inaccessible tunnels by pressing forward by means of tubes can be moved out again through the tunnel driven by it. For this purpose, an annular outer area (2b) is provided on the extracting tool (2), and one double casing (4b, 6b) each is provided around the control head (4) and the machine tube (6). The outer area (2b) of the extracting tool is connected to its inner area (2a) and the control-head double casing (4b) is connected to the control-head housing (4a) by connecting elements (24, 26). Specifically releasable restraining devices (28) hold the machine-tube double casing (6b) on the machine-tube housing (6a). After the final depth is reached, the control head (4) can be moved back by means of the control devices (40) to such an extent towards the machine tube (6) that the connecting elements (24, 26) are broken.

Abstract: A lift bar for disassembling a structure while preserving the components for reuse includes a handle and a fork-like member connected thereto. Upon the manual depression of the handle, the fork-like member pivots upward to pry a board or a sheet of building material away from an underlying support member. The lift bar also includes a deflecting assembly removably mounted on the handle so as to deflect a loosened sheet of material away from an operator.

Abstract: A substantially continuous tube-pulling operation is performed through the use of a plurality of pulling deivces, each of which is designed to partially pull a tube from its associated holder. By operating the pulling devices in a consecutive and repetitive fashion, the tube can be completely stripped from the holder in a single continuous operation.

Abstract: An exercise and/or rehabilitation apparatus is provided with a stationary frame and a pair of pedals pivotally mounted to the frame. The pedals can be pivoted in an up and down manner which allows an operator to assimilate a walking or jogging motion.

Abstract: A decorative multi-colored material and method of making same using rainbow gratings simultaneously evidence different color patterns which change through the color spectrum. The patterns are formed from separate impressions from different portions of a common rainbow grating to provide color differentiation. The multi-colored material may be used for a variety of applications, for example, decorative package wrappings, stickers, product enhancement and the like.

Abstract: A method and apparatus achieve the intermittent feeding of raw material into a shearing station by exerting a drive torque on draw-in rollers in order to effect their rotation in one arcuate direction and hence the movement of the raw material toward the shearing station. A counteracting torque, which is less than the drive torque, is continuously exerted on the draw-in rollers. Thus, during intervals following a shearing operation when the drive torque is terminated, the counteracting torque functions to reverse the rotation of the draw-in rollers and hence retract the sheared end of the raw material away from the shearing station.

Abstract: The box-like package made of a thermoformable plastics sheet being of a one-piece, punched blank provided with folding scores. Supporting profiles are molded out inwardly or outwardly from individual regions of the blank by means of thermoforming. These supporting profiles resiliently support the packed product which is susceptible to shock; they are therefore preferably adapted to the contours of the product. The entire pack, including the supporting profiles, forms a single part, so that additional supporting inserts are superfluous. The most important advantages: saving in packaging material, dispensing with troublesome to handle additional inserts, good stackability of the sheets before assembly, readily recyclable monomaterial package.

Abstract: A pivotable support (11) is mounted on the drive shaft of a main sawblade (2). Located at the bottom end of the support (11) is a preslitting sawblade (22) whose drive pinion (14) can be driven via a toothed belt (18) by a drive pinion (9) sitting on the drive shaft of the main sawblade. The support (11) is held by a tension spring (19) against an adjustable stop (21) provided on the housing (1). The device can also be attached subsequently to existing vertical board saws and ensures an absolutely clean cut even on plastic-coated chipboards and when using sawblades of inferior quality.