In a composite section for making up window frames and the like, and comprising interengaging sections of metal and of plastics, there are at least two spaced-apart pairs of interengaging hook formations on the two sections, forced into tight engagement by the insertion of a wedging strip between the sections, the spacing apart of the formations ensuring stability against tilting. There are furthermore abutment surfaces on at least one of the hook formations on the plastics section and on the me...

An electronic timepiece including a clock for providing an output indicative of natural time, a clock display for displaying time of day information provided by the clock, a chronograph for counting given elapsed natural time periods and a chronograph display for displaying the total such periods counted by the chronograph. The timeplace further includes a manually operable actuator, a calculator for counting sequential actuations of the actuator, and an other time display for displaying the acc...

Method for retrieving lobsters or similar objects from the floor of a lobster pound or other shallow water body are described. An upward flow of water is established in a flexible conduit or passageway of size sufficient to accommodate the objects to be lifted. This is accomplished by a low pressure air lift particularly suited for non-traumatic handling of lobsters. Objects to be lifted are drawn into the upward flow as the flexible conduit is moved over the bottom. As objects rise to the surfa...

Some esters of alkanephosphonic acids are found to be highly lethal to nematodes and other helminths.

A racket for tennis and other similar games, comprising a sensibly oval or pear-shaped stringing surface and an auxiliary element for maintaining the strings in a median plane at determined places, in which at least some strings are wound simultaneously around the frame and around the said auxiliary element.

A spotlight includes a housing with an illumination source moveably mounted therein and a lens assembly moveably mounted therein. One or more lenses are mounted in the lens assembly, each in one of a plurality of predetermined positions. Independent movement of the source and lenses conveniently provides a variety of field angles, light outputs, or other illumination characteristics. A reflector, framing shutters, iris, pattern grids, and color filter gels may also be used as desired.

An improved apparatus particularly for grinding or chopping food products, such as meat, coffee and the like. The apparatus includes a vertically extending receptacle open at its upper end for permitting material to be deposited therein. A rotatable knife assembly is disposed within the receptacle and cooperates with a replaceable control ring which surrounds the knife assembly for defining a narrow annular flow passage therebetween. The width of the flow passage can be varied by using different...

A vehicle for transporting containers has a bifurcate frame with a pair of parallel, generally horizontal bars as its prongs, these bars being articulated to hydraulically operable scissor linkages by which they may be raised and lowered together with a container overhanging the bars by its rim. Either or each bar carries a pivoted latch to hook onto a lateral projection on the container when the beams are elevated by the extended linkages, a collapse of the linkages to lower the beams causing o...

A substantially cylindrical tap body for water and other fluids has an integral sideways-extending spout, and is open at one end to receive a separately formed tap headwork. The opposite end of the chamber, also open for fitting to a supply pipe houses internally a screwed-in component in cooperative engagement with a sleeve internally screw-threaded for screwing on to a supply pipe.

Medical, dental or other apparatus contacting living beings are connected to their sources of electrical energy by safety devices which, upon connection to the sources, prevent energization of the apparatuses if, when the connections are made, faults such as transposed connections, and/or discontinuity in the connections, exist.