Abstract: A gutter and/or downspout cleaner employs a water spray and a mechanical snake to break up and dislodge debris. The cleaner is sufficiently long so that an individual who is standing at ground level can arrange the water spray and snake above a gutter or downspout to be cleaned.

Abstract: The flat drive belt has a layered build-up comprising at least one tensile layer (1) which has a modulus of elasticity of 20,000-250,000 N/mm.sup.2 and which is positively embedded between two thermoplastic hot-melt films (3) having a modulus of elasticity of 40-600 N/mm.sup.2. Friction layers or friction structures (4) of an elastomer material having a modulus of elasticity of 2-40 N/mm.sup.2 are built up on the hot-melt films (3).The individual layers of the flat drive belt can be produced with high precision and, as a composite, form a sheet-like structure which is very regular with respect to thickness and weight per unit area. The starting material, produced as meter ware, for the flat drive belt can be cut without effort by the user from rolls and can be joined under the action of pressure and heat into a continuous form, without thickenings and joint gaps, in the way required for the kinematic behavior of fast-running drive belts.

Abstract: The present invention increases the shot capacity and the screw recovery time of an injection molding machine without increasing hydraulic pump capacity or motor horsepower. In accordance with one aspect of the invention, an existing injection molding machine is retrofitted with two cylinder and piston arrangements which are bolted onto the machine between its plasticizer barrel and its melt manifold. One of the cylinder and piston arrangements is employed to perform a mold-filling operation, whereas the other cylinder and piston arrangement is employed to perform packing and suck back operations.

Abstract: A wireless mobile telephone communication system for communicating with a base station is disclosed. The communication system is designed to integrate a conventional wireless telephone unit with a conventional mobile telephone unit to provide remote capabilities. Integration is achieved by an interface which is adapted to acoustically or otherwise couple a wired handset of the mobile telephone unit to a remote wireless handset through a wireless transceiver/control unit. The communication system allows the driver of a mobile telephone equipped vehicle to use a low cost wireless telephone unit to receive calls while away from the unattended vehicle using the remote wireless handset.

Abstract: An infant exerciser includes a frame adapted for stationary placement on a floor or other support surface and a seat and treadmill assembly revolvably mounted on the frame. The treadmill is suspended beneath the seat so that an infant supported in the seat can exercise its legs by walking on the treadmill without moving the frame. By revolving the seat and treadmill assembly, an infant can change his or her field of view and interact with the surrounding environoment, while simultaneously practicing to walk or othewise exercising through the use of the treadmill.

Abstract: Disclosed herein are apparatus for synchronizing the speeds of two or more engines, each having its own throttle lever connected by an associated cable to a respective hand throttle lever. More particularly, the throttle lever of one of the engines is moved independently of its associated cable and its respective hand throttle lever to increase or decrease the speed of the engine until its speed matches the speed of the other engine or engines, whereby the speeds of the engines may be synchronized without moving their associated cables or their respective hand throttle levers.

Abstract: The interior of a rotary-disk apparatus is divided by a generally cylindrical wall into an inner processing zone and an outer processing zone. The inner processing zone can be connected to an disconnected from the outer processing zone by moving the wall into and out of sealing engagement with an underlying rotary disk. When the wall and the disk are not in sealing engagement with each other, a gap is formed which permits the transfer of granules from the inner processing zone to the outer processing zone as a result of the rotation of the disk.

Abstract: A rotary engine has a first ring-shaped floor portion connected to an inner shaft for rotation therewith and a second ring-shaped floor portion connected to an outer shaft for rotation therewith. The annular floor portions cooperate with an engine casing to define an annular chamber. A first pair of diametrically aligned pistons are positioned within the annular chamber and are connected to the first ring-shaped floor portion while a second pair of diametrically aligned pistons are positioned within the angular chamber and connected to the second ring-shaped floor portion. The pistons cooperate to define a plurality of combustion chambers. Means are provided for causing combustion in the combustion chambers for imparting rotary motion to the inner and outer shafts.

Abstract: A coupling sleeve (3) pushed onto the plastic pipe (1) and provided with barbs (3a) is drawn over a driving shoulder against the connecting piece (2) by a union nut (4). The opened-out pipe end (1a) is clamped between a curved end face of the connecting piece (2) and the coupling sleeve (3). Possible leakages caused by the flow of the pipe material are prevented by a spring (6), and the pipe (1) is prevented from turning during assembly by a sliding ring (5).The device used for assembling the pipe connection has grips (13) for fixing the pipe in position with a toggle lock (16) and a press ring (26), which can be displaced in sliding manner on a stop (25) acting as a centering arbor, and can be actuated by a hand lever (31). With only a few manipulations, the coupling sleeve (3) can be pushed onto the centrally held plastic pipe (1).

Abstract: A device is disclosed which is especially adapted for use in activating the combustion process in combustion systems equipped with a combustion chamber supplied with solid, liquid or gaseous fuel. The device employs a container which is partially filled with water and which is supplied with compressed air such that the compressed air flows through the water before being delivered to the combustion chamber, whereby the air is made moist. On its way to the combustion chamber, the moist air flows through a chamber containing a buffer liquid. A conduit extends between the chamber containing the buffer liquid and another chamber, the conduit having a transmission cross section selected such that a shock-absorbing function is performed.

Abstract: The present invention increases the shot capacity and the screw recovery time of an injection molding machine without increasing hydraulic pump capacity or motor horsepower. In accordance with one aspect of the invention, an existing injection molding machine is retrofitted with two cylinder and piston arrangements which are bolted onto the machine between its plasticizer barrel and its melt manifold. One of the cylinder and piston arrangements is employed to perform a mold-filling operation, whereas the other cylinder and piston arrangement is employed to perform packing and suck back operations.

Abstract: A flexible machining system includes a four axis double end slant bed unit which can be operated as a single or double spindle chucker, a precision boring machine, a way-type machine, a lathe or an automatic bar feeder. By providing the unit with a fifth axis, it may also function as a jig milling machine.

Abstract: The spring bridges of an undermattress are provided with lifting slats (9) which lift the unloaded mattress during the day for the purpose of better airing of the plywood springs (4, 5). During loading by a reclining person, the lifting slats (9) fall back below the upper edge of the plywood springs (4, 5) so that the mattress is then supported normally.

Abstract: A device for converting linear motion to rotary motion or vice versa employs at least two bearing members mounted for rotation about a crankpin of a rotatable crank, each bearing member being in constant engagement with its own individual bearing surface. A shuttle, which is mounted for reciprocating linear movement, carries the bearing surfaces, which are located on opposite sides of the crankpin and are offset relative to each other. Because the bearing members are in constant engagement with their associated bearing surfaces, the linear motion of the shuttle is continuously converted into the rotary motion of the crank or vice versa.

Abstract: Polygonally-shaped blanks useful in making products such as can parts are formed by dividing a relatively wide web of material into a plurality of relatively narrow strips, each strip having longitudinal edges delimited by scroll lines formed from a plurality of straight scroll line sections. The strips can be arranged parallel to a longitudinal axis of the web or at an angle relative thereto. It is also possible to divide the strips into individual blanks at a scrolling station or at a remote can making station. The polygonal shape of the blanks permits them to be designed so as to compensate for earing caused by the anisotropy of the material from which the web is made. Various punches and slitting arrangements can be employed to perforate the web and to longitudinally and laterally cut it so as to form the strip and/or blanks therefrom.

Abstract: A two-way mailing envelope for both first and return mailing is disclosed, which has top, bottom and side edges and comprises a pair of panels foldably connected to each other along one fold line extending along the bottom edge and folded over one another to form a first mailing envelope, first adhesive means adhesively fastening in superimposed relationship side edge portions of the panels, and first and second side tear strips severable along respective first and second tear lines and including the side edge portions. A first adhesive closure flap is foldably connected to the one panel along another fold line extending along the top edge, the first adhesive closure flap being foldable along the other fold line to seal the first mailing envelope.

Abstract: A sterile testing and dispensing apparatus is adapted for insertion into a sterile aseptically packaged container to permit the contents of the container to be tested and then dispensed. The apparatus includes a dispensing tube and a pH indicator removably received in the dispensing tube. When inserting the dispensing tube into the container through an appropriate hole or weakened area therein, the pH indicator is automatically exposed to the contents of the container. The pH indicator can then be withdrawn from the dispensing tube and visually examined to determine the presence or absence or spoilage.

Abstract: Methods for leveling masonry blocks and making a foundation from such blocks are disclosed by which two substantially complete courses of blocks can be laid and leveled without having to construct lead corners.