Abstract: The invention relates to a linear motor with a cylinder (5) containing a piston linked to a piston rod (8) projecting from either of the end faces of the cylinder (5). To secure the piston rod against torsion and rotation, a guide comprising at least two guide ribs (22, 22') arranged on the circumference of the cylinder (5) is provided, these ribs being arranged at a distance from each other and extending in the axial direction of the cylinder (5). A slide (19) seated on the outside of the cylinder (5) and guided on the guide ribs (22, 22') while at least partially encompassing them is fixed to the piston rod (8).

Abstract: A sewing group is associated with a sewing machine and a feed device and comprises a work-holder drivable by two links supported on respective slides which are moved by separate stationary positioning motors which drive the respective slides. The maximum drive forces supplied in the two directions of movement of the feed device are as nearly equal as possible. Links are articulatedly connected with a work-holder for the transmission of exclusively axial forces. At the work-holder is pivoted one end of a guide arm structure whose other end is received for rotary movement in a longitudinal guide. Due to the equivalent load on the two links 13, 26 there result, for the positioning motors, equal drive conditions and equal maximum forces. The feed device is especially suitable for sewing groups with work-holders drivable by step motors.

Abstract: A gas accident preventive unit has a memory circuit which is capable of memorizing in advance a continuous service safety time according to a consumed gas volume of gas apparatuses that are installed at a gas user. The unit also includes a control circuit for sending out to an emergency shutoff valve, a close signal for cutting off the gas being supplied to the user in the event that any increase in gas flowrate is recognized in the previously measured value and the value measured this time by taking a measurement of the whole gas flowrate value being supplied to the gas user at a certain interval of time. The unit takes the measurement of continuous service hours on individual gas apparatuses or the gas apparatus having the largest gas consumption volume now under service, or responds to when the service of gas apparatus with the largest gas consumption volume being monitored has elapsed the continuous service safety time.

Abstract: A stacker for letters and similar flat, flexible conveyed material includes a number of stack compartments to which the letters are fed past shunts assigned separately to the individual compartments and in which the letters are stacked on top of one another, the stack compartments are sloped by a specific angle in the direction of the incoming letters. Each stack compartment has an inlet strap mounted at one end to rotate above the letter inlet opening and to guide the letter into the stack compartment during its energy. The inlet strap has an angle iron shaped cross section, with the ends of the legs pointing in the direction of the stacking space.

Abstract: A novel enzyme of bilirubin oxidase and a conventional enzyme of laccase are found to oxidize bilirubin to biliverdin without formation of hydrogen peroxide, thereby permitting the content of conjugated bilirubin in biological fluid to be quantitatively determined by reacting therewith the bilirubin oxidase of a microorganism of genus Myrothecium origin, and also permitting the content of total bilirubin in biological fluid to be quantitatively determined by reacting therewith such a bilirubin oxidase or laccase in the presence of a specific additive compound.

Abstract: An apparatus for supporting and retaining in position a curved sheet (5) which is to be subjected to a machining operation comprising a plurality of support devices (6) spaced apart at regular intervals on a support plate (7), which support devices are positionable at predetermined locations to support and retain the sheet (5), wherein each support device (6) comprises a sliding support member (10) positionable against a contact member, the support member having means (12) capable of adhering to a sheet (5) pivotally mounted thereon, and control means (31) for controlling the pivotal movement of the adhesion means (12) so as to bring the sheet (5) into contact with the positioned support member (6) and to hold the sheet in position to permit machining to take place.

Abstract: A jig or sabre saw has a horizontal foot to be placed on the work to be sawn. A drive unit is pivotally mounted on the foot and drives the tool in a tool holder. The two sides of the saw or other tool are supported by a guide device at points directly above the foot. The guide device is adapted to pivot with the drive unit so support the saw blade even when performing bevel cuts. The guide device and the drive unit may be arranged to pivot about two axes or about a single axis in relation to the foot.

Abstract: A housing for the protection of explosive charges comprises several layers of different compositions surrounding the explosive charge. The successive layers have alternately a high and a low shock wave impedance, where further the outermost layer has the lowest melting point and the melting point increases toward the innermost layer.

Abstract: The shafts of guide vanes of an axial-flow engine, in particular, a combustion turbine, are supported angle-adjustably in an annular guide vane carrier and are spring-loaded and vibration-damped in their axis directions. An adjustment ring concentric to the flow channel is supported play-free and with low-friction engagement in a groove of a carrier ring by radial and axial rolls. Levers wedged on the guide vane shafts are pivoted by pins in a cylinder bolt, which, in turn, are supported rotatably and displaceably in laterally open bores of the adjustment ring and axis-parallel to it. This permits a largely play-free transfer of the adjustment motion onto the guide vane shafts without point or line contact. The guide vane carrier closes off the groove of the carrier ring so, that the entire mechanism is protected against dust.

Abstract: A commutator for a miniature motor having a permanent magnet field; comprising a commutator core having a commutator core flat portion, a cylindrical portion provided upright at the center of the flat portion, insert pieces provided in the opposite direction to the cylindrical portion; commutator segments having arc-shaped segment pieces disposed in contact with the outer periphery of the cylindrical portion, and commutator legs disposed along the commutator core flat portion; and a commutator washer engaged with the outer periphery of the arc-shaped segment pieces to fixedly fit the commutator segments to the commutator core; in which winding hooks (in the form of projections or lanced and raised pieces, for example) for hooking rotor windings are provided at predetermined locations of the commutator core flat portions on the sides of the commutator legs disposed in the abovementioned manner.

Abstract: A saddle type vehicle for running on an uneven ground includes a swing type engine unit whose pivot is positioned before a center of the wheel base of the vehicle. The vehicle includes a lower member disposed opposite to a lower surface of the engine unit and includes a frame connected by coupling the lower member and an upper member by a bridge member surrounding a main portion of the engine unit.

Abstract: For each cylinder a timing device comprises at least one valve (12) in the shape of a solid of revolution which rotates inside a corresponding recess (15) in a seat formed in the cylinder head (1), the surface of the recess mating with that of the valve; at least one intake and/or exhaust pipe (7, 9) which communicates with the recess; at least one pipe (10) which connects the recess with the space inside the cylinder (3) of the reciprocating engine. The valve has at least one facet (13) or a recess or an eccentric hole which allows communication between the intake and/or exhaust pipe (7,9) and the pipe (10) which connects with the space inside the cylinder while the valve itself is rotating. Actuating devices are provided which cause the valve to rotate in synchronization with the phases of the reciprocating engine.

Abstract: The invention relates to a ramp section or assembly for a collapsible floating bridge or ferry. The ramp section comprises two inner and two part outer float elements, connected together by joints. The two parts of the float element are, according to the invention, composed of a pair of partial constant and partial transversely convering cross section and a pair movable relative to the part of partial constant and partial transversely converging cross section, which are pivotably connected by first joints. Through the first joint the movable part can be brought into aligned arrangement or juxtaposition with the part of constant cross section when picking up from or setting down on a transport vehicle, so that guiding by the rollers connected with the transport vehicle is achieved.

Abstract: The invention provides a spray gun for liquids and more especially liquid coatings such as paints and varnishes, comprising a liquid container, a housing, a pump for the supply of the liquid from the liquid container to a spray nozzle via a spring loaded outlet valve, and a return duct connecting the outlet of the outlet valve with the container and having an adjustable valve therein. Pumping may be caused to take place by switch means on the handle. For adjustment of the further valve, which may be preferably completely shut, there is an adjustment member in the front part of the spray gun on the jet side thereof, which is decoupled from the switching on means and, while being able to be steplessly adjusted, is able to remain in each setting of its own accord. This makes it possible for the spray jet to be modified readily without interrupting spraying and even when the spraying density is very low it possible to ensure an even spray cone.

Abstract: An integrated manual brake device on a brake actuation unit, particularly for rail vehicles, and it includes a hydraulic or pneumatic cylinder. The brake actuation unit contains a linkage setter including two parts displaceable relative to each other in a telescopic fashion. One of the parts is formed as a threaded spindle and the other tubular part is firmly connected with a nut which is screwed on the spindle with a nonselflocking thread. A stop is provided on the tubular part fixed in an axial direction but easily turnable. An actuating spring is clamped between the piston and the output part.

Abstract: A support bearing with fluid damping in a housing which includes two chambers which are of variable volume and filled with a fluid, and are interconnected by a passage with a built-in restrictor valve. The housing includes rubber-elastic inner and outer walls of different degrees of hardness which are fastened to metallic support members. One of the supports is connected with the foundation and the other with the part (engine) to be supported. One chamber surrounds the other chamber circularly and a passage interconnects the chambers. The walls defining the chambers are incorporated in a housing connected to a support member. The elements comprises a rubber-elastic material and are formed in one piece and are firmly connected with the one supporting member, as well as with a support ring, which is advantageously connected with the other supporting member by mechanical means.

Abstract: A nozzle head of thermoplastic material injection nozzle is closed in the customary manner with a closure head which has a jet orifice. A jet needle closes the jet orifice in a closed position. The needle is held axially displaceable in a needle bearing. An actuation lever is set into a slit-like recess in the needle bearing and it is supported with a bearing ball carried at the rear wall of the needle bearing. A stroke transmission bolt set inbetween jet needle and actuation lever in overhung position serves for transmitting the closing force from the actuation lever to the jet needle. Upon opening, the injection pressure pushes the jet needle rearward if the actuation lever is rotated into the open position. In this arrangement a locking spring becomes superfluous and, consequently, no force counter to the spring force must be effected by the injection force.

Abstract: A device for enriching a fluid with ozone includes an inner tubular member arranged within an outer tubular member and defining a separate flow path for a fluid within the inner tubular member and another one for a fluid between the inner and outer tubular members. An electrode which has a high voltage regulation and a coil portion which extends through the inner tubular member forms a grounding electrode. A fluid such as air which is to be enriched with ozone is passed either through the inner tubular member or the space between the two tubular members and a cooling fluid is passed in the other tubular member. The inner tubular member is made of an ultraviolet penetrable and heat resistant material such as quartz glass.