Abstract: A control current transmitter is provided of the type having contactor means which yieldingly engage a control current track for a trolley in conveyor systems. The contactor means consists of two contact blocks or rollers positioned in the longitudinal or driving direction of the trolley, disposed one behind the other and spaced apart from each other in an insulated manner, each of which is provided with separate control current lines coupled thereto.

Abstract: Indium phosphide surfaces can be polished if, during the mechanical polishing operation, which is carried out in a customary manner, a component that yields free chlorine in an aqueous acidic medium, and, at the same time, a component that yields free carbon dioxide are applied to the surface to be polished.

Abstract: A switch system for clearing spoiled items from an overlapped stream of paper products such as signatures has a three-flight conveyor belt transporting system whose middle flight may be rocked bodily so that its downstream belt support roll, functioning as a switch roll, is moved between an upper position in which it is leveled up with the next flight, and a lowered position for sending the stream, when made up of spoiled items, downwards under the next flight to a separate delivery. The side face of the upstream belt roll of this same next flight is covered by a cover for neatly separating the stream and switching it over into the downward parts under this next flight. Over the switch a backer roll is placed so as to have its weight supported on the stream of products (in turn supported by the switch roll). In this way the products are well gripped and controlled.

Abstract: Process and device for thermochemically drilling and separating SiO.sub.2 containing minerals by using such chemical compounds as fluxes in the combustion, which form in the melt silicates of low temperature melting range, primarily alkali metal silicates, the fluxes, mixed with catalysts and with metal powder serving as fuel, being passed through an oxygen lance or a core lance containing bundles of wires and ducts for passage of oxygen and flux at a high rate of speed, ignition being done semi-automatically or fully automatically. The use of the process and device according to the invention result in an increased effectiveness of the drilling and separation of the SiO.sub.2 containing minerals as compared to known thermochemical processes.

Abstract: A diving board and bracket assembly for a boat which includes a generally rectangular diving board, a bracket having a generally rectangular slot for receipt therein of an end of the diving board, a fastening device for releasably securing the diving board to the bracket and a fastening device for securing the bracket to a boat. The diving board is specifically intended for mounting on a transom of a boat and an adjustment device is provided for accommodating various transom angles.

Abstract: A device for separating meat from bones includes a flexible cutting strand driven continuously or in a reciprocating manner by a drive. The cutting strand is unsupported over a portion of its length so that it can engage the surface of a bone in this area under the influence of a force exerted on the device. The cutting strand is provided with cutting elements spaced apart from each other which have cutting edges extending in the longitudinal direction of the cutting strand.

Abstract: A hydroponic device includes a hollow housing which defines a substantially closed lower chamber for receiving a liquid nutrient solution and a top open-ended upper chamber for receiving an inert filler material and the desired vegetation which are separated by a partition wall. At least one nutrient supply pipe is coupled to the partition wall and extends downwardly into the lower chamber. The supply pipe has a throughput bore extending therethrough to establish fluid communication between the upper chamber and the lower chamber, whereby the nutrient solution may be fed in a continuous cycle from the lower chamber to the upper chamber and back again.

Abstract: A needle for a knitting machine comprising a needle shank having a needle foot thereon which has a substantially rectangular cross section and at least one longitudinal groove formed in one side face thereof. The invention also relates to a method for producing such a needle.

Abstract: For the purpose of helping in the making of a second lengthways fold in a web of paper in a folder having a folder blade for producing this fold, the paper is firstly scored at the desired fold position in the long direction by a sharp-edged wheel pushing the paper against a turning back-up part, which is let into the face of one of the nipper or guiding rolls of the folder. The wheel with the sharp edge is placed on the other, opposite roll between separate roll parts or wheels thereon gripping the web against the other roll.

Abstract: The invention relates to supported catalysts based on a palladium(II) salt and activated carbon, there being used, as the support material, activated carbon having an analytical SiO.sub.2 content of from 0.5 to 8% by weight. The catalysts according to the invention are used for reacting carboxylic acids with alkenyl esters of lower carboxylic acids.

Abstract: A suture and surgical accessory rack includes a frame and bag-like disposable member supported in an upright manner on the frame. The bag-like member has a generally vertically-disposed front panel having secured thereto a multiplicity of first pockets, each configured and dimensioned for partial receipt therein of a suture-containing package, a needle count board including at least one numbered row to which used needles may be secured, and a surgical tie holder including a generally, horizontally-disposed wall member projecting outwardly from the front panel having a multiplicity of parallel, vertically-extending slits formed therein in which surgical ties may be individually inserted. The rack is intended for use by nurses during surgical procedures and it affords easy and facile access to various surgical accessories, monitors the number of needles and blades used and allows easy disposal in a safe manner.

Abstract: A safety system for a vehicle having a chassis, including two parallel spaced-apart legs and an axle assembly for each of the wheels, includes a suspension assembly including an air piston arrestor pivotably coupled between the chassis and one of the axle assemblies, a device for arresting the air piston arrestor in a relatively rigid, non-compressible state, an electromechanical device for activating the arresting device and a retractable bumper assembly.

Abstract: A device for separating a filler mass into solid and liquid components and, in particular, for converting a highly viscous sugar filler mass into sugar crystals and molasses, includes a centrifuge, a dosaging device for feeding the filler mass and a device for heating the filler mass immediately before centrifuging. The invention is characterized by the fact that the device for heating the filler mass is a high frequency heating device.

Abstract: A safety system for a vehicle having a chassis, including two parallel spaced-apart legs and an axle assembly for each of the wheels, includes a suspension assembly including an air piston arrestor pivotably coupled between the chassis and one of the axle assemblies, a device for arresting the air piston arrestor in a relatively rigid, non-compressible state, and an electromechanical device for activating the arresting device.

Abstract: A thread-monitoring device for monitoring threads being fed to a textile machine, comprising for each pair of threads to be monitored, a two-arm lever pivotally mounted in a pendulum-like manner and provided at the free ends of its arms with respective thread guides. A pair of threads to be monitored is led down past a corresponding two-arm lever such that with the threads engaged in respective ones of the lever's thread guides the threads exert forces on the lever which normally balance out and leave the lever in a central position. Upon this balance of forces being upset, for example, due to thread breakage or unequal thread tensions, the lever is arranged to be displaced from its central position, this displacement being detected by suitable sensor means.

Abstract: The invention relates to a process for the manufacture of unsaturated carboxylic acid esters by the reaction of olefins or cyclo-olefins with oxygen and carboxylic acids in the gaseous phase, in the presence of a catalyst which contains elements of the subsidiary group VIII of the periodic system and/or compounds thereof, and an alkali metal acetate, at temperatures of from 100.degree. to 250.degree. C. and pressures of from 0.5 to 21 bar absolute, wherein from 1 to 8000 parts per million (by weight), calculated on the carboxylic acid used, of organic chlorine compounds are added to the reaction mixture.

Abstract: An adjustable vehicle seat has an upholstered seat frame and an upholstered back frame. The seat frame is mounted on the vehicle frame independently of the back frame and is adjustable in a heightwise, longitudinally and in an inclined manner with respect to the vehicle frame. The upholstery is displaceable with respect to the seat frame, as well as the back frame.

Abstract: A thermostatically controlled mixer battery. The appropriate mixer battery having plate control means 2 comprising at least one rotatable control plate 24 for controlling the quantity of water delivered and manually actuable from externally by a user, the plate 24 having bores 243, 244 selectively alignable with hot and cold water inlet bores 233, 234 and a temperature control plate 25, which is thermostatically actuated and is sealingly displaceable relative to the quantity control plate 24, the plate 25 having bores 253, 254 formed therein which permit the hot and cold water to pass therethrough in a desired ratio to a mixing chamber 15.

Abstract: A metal frame for eyeglasses is provided which includes a pair of rims, each of which is configured to surround and support an eyeglass lens, and a locking bar secured to each of the rims. The locking bar and the rim to which it is secured are separated by a separation slot so as to divide the rim and the bar into first and second rim portions and first and second locking bar segments respectively. A jacket having an internally threaded bore is coupled to the first locking bar segment to prevent movement thereof relative to the first locking bar segment towards the second locking bar segment, and a locking bar screw is detachably coupled to the second locking bar segment and is in threaded engagement with the bore of the jacket.