baber/WOPTO huggingface dataset:
Patent DE-2709747-A1 (DE)
Title: Heavy vehicle, pneumatic fully lined disc brake seals - are fitted in brake ring grooves and have overlapping segments and metal band spring
Inventor: KLAUE HERMANN DR ING
IPC: F16D55/10
Filed: 1977-03-05
Abstract: Pneumatically operated, fully lined disc brake, partic. for heavy service vehicles, involves seals fitted in grooves (21) of the brake ring (2) composed of four or more sealing segments (31, 32) overlapping in a circumferential direction, together with a metal band spring (4) located in the base of the groove (21). The sealing surface of the sealing segments (31, 32) are principally of metal, or are wholly of molybdenum disulphide or graphite. They have face side, overlapping projections. The structure of the brake sealing arrangement is such as to develop further the seal effectiveness, to reduce its space requirements, and to ensure equal pressure application over its periphery, and at the same time to reduce its lateral friction on the cylinder surfaces to be sealed.
Patent DE-2710553-A1 (DE)
Title: Non-dazzling headlight for motor vehicles - has concave mirror and dazzle preventing parallel lamellae at lamp front
Inventor: HACKBARTH KURT
IPC: F21V11/16
Filed: 1977-03-08
Abstract: The non dazzling headlight for a motor vehicle, prevents dazzling other traffic. The headlight has a concave mirror designed so that the light is emitted in parallel beam. In front of the light beam is a lamellar grid which prevents direct view into the headlights. The distance between the lamellae is arranged so that they are parallel and the light passes in a parallel path through the grid. Lamella distortion is prevented by making them from glass or plastics. The headlight unit can be swivelled about its pivots. The headlight unit can be adjusted to be parallel with the road surface.
Patent DE-2711790-A1 (DE)
Title: Cutter for dovetail grooves in joined boards - has rear threaded section and precise depth screw set into intermediate piece
Inventor: WOLFF ROBERT
IPC: B27F1/12
Filed: 1977-03-18
Abstract: The cutter is for dovetail grooves in planks to be joined at right angles. A cutter is held in a guide piece set into slits in a comb-shaped template unit. The guide piece has grooves on both side of the cutter, to accommodate adjacent dovetails and is clampable on a manually guided electric drive machine. The cutter (30) has a threaded section (29) at its rear shaft end, and can be screwed into an intermediate piece (27) with an axial threaded blind hole (28), to a depth precisely defined by thread length. The intermediate piece is clamped in the drill chuck of the drive machine (26). The guide piece (34) is gripped axially between an annular ledge (33) close behind the cutter head (31), and the leading end (41) of the intermediate piece, with only slight axial play.
Patent DE-2712739-A1 (DE)
Title: Semiconductor controlled illumination device current supply - uses optical coupler and incandescent lamp for enlarging and reproduction equipment
Inventor: BUCHER HEINZ
IPC: G05F1/66
Filed: 1977-03-23
Abstract: A semiconductor-controlled current supply system (1) is used for the illumination units of enlarging and reproduction equipment. It is designed for a larger than usual control range using simple circuitry and to avoid illumination overload on switching on the supply. A power transformer is used. It is supplied from the AC mains via a phase circuit. The phase gate circuit control voltage is supplied by a fully encapsulated optical coupler with light sensitive resistance output element and a small voltage incandescent bulb input element. A regulator maintains the bulb voltage constant at a value corresp. to the desired illuminator voltage.
Patent DE-2716475-A1 (DE)
Title: Hair-dyeing compsn. contains tetra:amino-pyrimidine developer - and di:amino-tetralin, ethylamino-amino-methyl-benzene and/or di:hydroxy-methyl-coumarin as coupler
Inventor: ROSE DAVID DIPL CHEM DR
IPC: A61K8/49
Filed: 1977-04-14
Abstract: Oxidn. dye-based hair-dyeing compsns. as described in the parent patent, contain tetraaminopyrimidines (II) as developers. In this addn., the compsns. contain, as couplers for (II), (a) 5,7-diamino-tetralin (Ia); (b) 1-N-ethylamino-3-amino-6-methylbenzene (Ib) and/or (c) 5,7-dihydroxy-4-methyl-coumarin (Ic). Strong, fast, different shades are obtd., e.g. olive brown with (Ia), dark green with (Ib) and grey-violet with (Ic), when using 2,4,5,6-tetraaminopyrimidine as (II). The dyes are non-toxic and do not irritate the skin.
Patent DE-2719867-A1 (DE)
Title: 1,4-Butane-diol prodn. from acrylonitrile and hydrogen cyanide - with conversion of succino-di:nitrile to di:alkyl succinate and hydrogenation
Inventor: KRALL HERMANN-DIETER DR
IPC: C07C67/22
Filed: 1977-05-04
Abstract: Prodn. of 1,4-butanediol (I) comprises reacting acrylonitrile (II) with HCN in presence of tert. amine to give succinic acid dinitrile (III). (III) is treated with a 1-7C alcohol in the presence of an acid to give the corresp. dialkyl succinate (IV) and the NH4 salt of the acid. (IV) is then treated with H2 in the presence of Cu chromite catalyst to give (I) and alcohol for recycle to the second stage. Pref. tert. amine catalyst are of formula R1R2R3N (R1-3 each is (cyclo)alkyl, aralkyl or aryl (opt. substd.), or 2 complete a heterocycle opt. contg. additional heteroatoms and where they are alkyl these can be broken by O or S giving polyoxyalkylene or polythioether structures) Et3N is esp. pref. (I) is an intermediate cor polyesters, polyurethanes and chloroformate esters. The (NH4)2SO4 by-prod. is useful as a fertiliser. The first stage gives almost quantitative yields with higher space-time yields than standard processes. Overall yields for the 3 stages are 86-88% based on HCN.
Patent DE-2728219-A1 (DE)
Title: Hydraulic pit prop unit - is made of light metal covered with woven steel or copper alloy mesh with outer plastics cover
Inventor: REININGHAUS ULRICH
IPC: E21D15/44
Filed: 1977-06-23
Abstract: The pit prop unit may be made of woven mesh from CR, N1, Cu or T1 alloy. The lower layer may be plastics whilst the outer layer(4) may be high grade steel. The mesh is woven wire with a thickness of between 0.5 to 1 mm. Al is inner core may be used, the outer cover may alternatively have a hard anodic layer. Adhesion of outer and inner cover may be accomplished by glueing or ultra sonic heat sealing.
Patent DE-2730737-A1 (DE)
Title: Odometer and speedometer for motor vehicle - has light source whose light is guided by light conductors to light modulator and photocell
Inventor: WIDL GERHARD DR ING
IPC: G01P3/486
Filed: 1977-07-07
Abstract: The device has an electric instrument movement and electrically operated counter mounted in a case, and a pickup scanning a gear transmission. It delivers a pulse train whose frequency is proportional to the speed of rotating components. It is connected to the movement and the counter, possibly through a frequency convertor. A photoelectric pickup has a photocell (5), a light source (4), light conductors (9, 10) for light flux transmission from the light source to the photocell, and light input and output devices (12, 14) for modulation of the light flux by the scanned, rotating component (e.g. 8). The photocell is mounted in the case (1) and is coupled through the light conductor (9 or 10) to the devices (12, 14) adjacent to the rotating component (e.g. 8).
Patent DE-2735504-A1 (DE)
Title: Rope drum safety cut=out - has pins for limit switch and sensor to control unwinding of rope from grooved drum
Inventor: FLESSNER HINRICH
IPC: B66D1/56
Filed: 1977-08-06
Abstract: The limit switch is for a rope drum with grooves to hold the innermost rope windings. A sensor pin (3) under spring tension is countersunk into the groove selected for the last permissible turn of the rope (2a), with the sensor pin adjustable radially within the body of the drum. The sensor pin has an operating connection with a switch pin (6) also under spring tension and adjustable within the drum's body in an axial direction. One end of the switch pin projects from the front surface of the drum's body, and actuates an electric sensor when the last permissible rope turn leaves the corresponding groove.
Patent DE-2735799-A1 (DE)
Title: Spinner drawing section - has signal units with the torque limiter to determine relative start positions of the rollers (BR 26.12.78)
Inventor: KELLNER HARALD ING GRAD
IPC: D01H13/14
Filed: 1977-08-09
Abstract: The drive mechanism for the drawing section of a spinning machine has signal units where the roller sections end at the torque limiter. These delive series of signals as the roller sections rotate, to give a common loading to a switching unit. These are successively reconciled so that, when the relative starting setting of the roller sections match the phase state of the switch, there is no action. The design allows the position of the roller section ends, rotting at the torque limiter, to be established and indicated.
Patent DE-2738815-A1 (DE)
Title: Safety shoes with rubber soles vulcanised to uppers - have heels provided with welt sole supports and spaces filled with foamed polystyrene which is disposed of during vulcanisation
Inventor: MATTIL KLAUS ING GRAD
IPC: B29C35/00
Filed: 1977-08-29
Abstract: Safety shoes, consisting of uppers which are vulcanised to rubber soles with rubber heel provided with a cavity in which spaced vertical columnar supports are surrounded by a vanishing filler, are produced by reducing the volume of the filler, e.g. foamed polystyrene, during vulcanisation using a solvent or heat. Shoes comply with safety regulations w.r.t. to prevention oofankle fractures in that the required resilience of the heel relative to the weld sole is provided.
Patent DE-2740029-A1 (DE)
Title: Chewing strap for pigs bred under intensive conditions - is of flavoured leather and prevents tail biting
Inventor: ULRICH FRIEDRICH
IPC: A01K15/02
Filed: 1977-09-06
Abstract: The urge of pigs raised under modern intensive conditions in stalls without straw, and fed on bruised grain, etc., to chew something, which results in tail biting and considerable financial loss to the breeder, is satisfied by means of a chewing strap. This consists of a long strap of chrome tanned leather with a slot at one end through which the other end can be threaded so as to fix it hanging from a support bar for the stall. The leather is made attractive by impregnating it with beet syrup, milk, lard, etc. and quickly produces harmony when the pigs are transferred.
Patent DE-2743577-A1 (DE)
Title: Damp-proof, condensn.-resistant, laminated glass pane - has desiccant-filled spacer frame and bonding interlayers of butyl rubber and polysulphide adhesives
Inventor: PEETZ DIETER DIPL ING
IPC: C03C27/12
Filed: 1977-09-28
Abstract: Insulating, laminated, glass pane comprises >2 panes with a hollow spacing frame filled with a drying agent. The panes are sealingly edge-bonded with >=1 adhesive layers. The spacing frame is composed of lengthwise welded tubular profile sections. The welding seam of the profile sectionsis located on one of the sides of the profile in bonded contact with one of the panes. Between this side and the pane there is an adhesive butyl rubber layer. Other adhesive layers consist of polysulphide.
Patent DE-2746049-A1 (DE)
Title: Push rod bolt for fire doors - has bolt working together with spring-loaded wedging plate to lock it in retracted position
Inventor: SIEG GISELHER
IPC: E05B65/10
Filed: 1977-10-13
Abstract: The push rod locking mechanism for double fire doors is fitted with a bolt blocking mechanism. The bolt (12) is fitted along the vertical contact edge of the leaf and guided in openings provided on top and bottom of the leaf edge in the form of angled facings (4). The bolt works together with a plate (8) fitted on hinge (11). The plate has an eyelet (8) through which the end of bolt (12) penetrates. The other end of the plate rests against the underside of the fork-shaped roller carrier (9") whose shaft has a spring (10). The other end of the spring rests on the fixed support (15) with a guide opening. The tilted position of the plate results in a wedging action on the bolt and a release of the bolt is achieved by pressure on the roller.
Patent DE-2752026-A1 (DE)
Title: Automatic recording of keyed instruments - using marking device connected to keys so that contacts mark lines on electrosensitive paper
Inventor: WEIS GERNOD DIPL ING
IPC: G10G3/04
Filed: 1977-11-22
Abstract: Recording is done by marking device controlled by the keys so that individual tones are geometrically fixed on the recording medium. They are recorded by lines whose position and length determine the tone and its duration. The lines can be recorded in four positions w.r.t. a fixed line system. Each note has its own recording element in a specific position, operated as long as the corresp. key is operated. It marks the recording medium mechanically, photochemically, electrically or magnetically. The recording elements are electric contacts marking electrosensitive paper when current flows through them.
Patent DE-2811346-A1 (DE)
Title: Typewriter inking head covering device - has covering and cleaning strips guided together at cassette opening
Inventor: JOHANNSEN FRED ING GRAD
IPC: B41J2/165
Filed: 1978-03-16
Abstract: The device covers the nozzle surface on the inking head of a typewriter, comprising a cassette with openings for feeler, drive and adjusting members. A covering and a cleaning strip are passed over an opening in the cassette wall to bear against the nozzle face. Both strips(2, 3) are guided together one behind the other at the opening(4) to bear against the nozzle face(5). In the strip nearest to the nozzle, openings are formed to allow the strip behind to bear against the face, when an opening in the front one is opposite it.
Patent DE-2812827-A1 (DE)
IPC: F28D20/00
Filed: 1978-03-23
Abstract: The accumulator medium of the heat accumulator consists of various solid materials (5, 6, 9). In this case, the earth, which is surrounded at least partially by an insulation (8), forms the greatest proportion of the heat-accumulator medium in terms of volume. For supply and removal of heat transfer media in the form of air or water, lines (10, 11) to stone layers (9) and connections (2, 3) to pipes (1) are provided. The maintenance costs and the risk of accident are lower than in known heat accumulators. <IMAGE>
Patent DE-2829942-A1 (DE)
Title: Optical fibre for data transmission system with low damping - is inserted into loose projective cover with slight overlap so that cover first takes up any tension
Inventor: ZEIDLER GUENTER DR PHIL
IPC: G02B6/44
Filed: 1978-07-05
Abstract: An optical transmission element is for data transmission with a low damping factor. The element is formed as a laminated fibre consisting of a core and sheath surrounded by a loose protective cover. The element is inserted into the latter so that it protrudes slightly. This has the advantage that when the cable is subjected to tension the actual optical fibre is not at first affected. The extension is not made too long, otherwise damping would occur. Its extent in percentage is given by the formula: 7.7W(mm) over 4.6+1nW, the whole expression being squared. W=D-d(mm), where D is the inner dia. of the protective cover, and d is the dia. of the fibre.
Patent DE-2831463-A1 (DE)
Title: Beverage tap cleansing device - incorporates head containing double:acting piston and hollow housing with displaceable, externally recessed cock
Inventor: VERBEEMEN HIPPOLIET
IPC: B67D1/07
Filed: 1978-07-18
Abstract: Cleansing device for beverage taps which has at least a reservoir, a tap cock and a pipe between reservoir and cock and incorporates a cleansing fluid feed pipe and a cleaning head connected to it. The head is fitted in the beverage pipe and has a hollow housing containing a displaceable cock with a recess on its outside. The cleansing head also has a double-effect piston which moves in a cylindrical part of the housing. A fluid source is connected to the hollow housing, and the double-effect piston and the cleaning head tap unit form an integral assembly, or central body, hollow and open at the both ends. It is so positioned that the beverage pipe is in contact with the inner edge of the central body, but is always cut off from the inner edge of the cylindrical part of the housing where the piston moves.
Patent DE-2832838-A1 (DE)
Title: Dental pantograph with adjustable articulator - has recording plate holders and pens adjustable to align starting points
Inventor: SEIB RAINER DR
IPC: A61C11/00
Filed: 1978-07-26
Abstract: The dental pantography appts. records and evaluates the limit and protrusion movement of the lower jaw using a partly adjustable articulator. The starting points for recording the excursion movements on both the horizontal and vertical recording plates can be held in line by adjusting the plate holders for definite amounts in the horizontal or vertical direction, and by adjusting the recording pens. The articulator has a large condylar clearance, and has condylar sphere base portions allowing coordination with the part of the appts. acting as a transmission arch. It is lockable in the central position, and any necessary immediate sideshift can be set.
Patent DE-2835201-A1 (DE)
Title: Force-versus-time graphic display unit for impact tester - uses optical detector coupled to digital analyser and includes digital plotter
Inventor: MEYER REINHART PROF DR
IPC: G01N3/30
Filed: 1978-08-11
Abstract: The hammer force measuring system consists of a bar pattern attached to the hammer and a double optical detector which provides two phase-shifted pulse trains as the hammer passes it. The displacement increments and direction signal control a counter. The displacement increment time values are stored and the counter is stopped when the hammer returns. The digitised values are passed to an analiser which carries out the necessary differentiation. This comprises a series of dividers, adders/dividers subtractor/dividers, a multiplier and a final adder. Finally, the time-related force products are displayed on a digital plotter.
Patent DE-2837630-A1 (DE)
Title: Working chair with seat and backrest of polyurethane - having closed-pore surface with domed studs and perforations
Inventor: SCHNEIDER ALBERT
IPC: A47C7/20
Filed: 1978-08-29
Abstract: A seat and a backrest each of which is moulded in one piece from elastically yielding synthetic foam, with anatomically appropriate contours, forms with its frame a working chair. The seat and the backrest are covered at least in part by domed, flat studs, and at least in the case of the seat, through holes may also be provided. On the seat, smaller studs more dense in number are provided where the backs of the thighs are accommodated, and on the backrest the studs are arranged to support the lumbar region, the spine and the shoulder blades. The mouldings of polyurethane are reinforced with a perforated metal plate and their surfaces are highly densified with sealed pores. The adequate ventilation prevents any accumulation of perspiration, and the action of the studs on the skin as the occupier moves allows protracted sitting without tiring.
Patent DE-2839975-A1 (DE)
Title: Spinal self massaging device - has handle across plate with brush each end and further brush each side
Inventor: DEVENTER FRIEDRICH
IPC: A61H7/00
Filed: 1978-09-14
Abstract: The back massaging device to enable the spinal region to be massaged has a plate with a brush attached to each end. At a point nearer the lower brush, two arms slope outwards and rearwards, each with a further brush mounted at its end. Also near the junction of the arms with the central part are two spaced apart blocks acting as bearings for a handle with its ends projecting outwards at right angles to the central axis. The positions of the first two brushes can be altered along the central axis. Also the position of the two bearing blocks can be adjusted parallel to the central axis.
Patent DE-2841314-A1 (DE)
Title: Attenuation control for adjustable attenuation elements - uses two=way counter whose signal is applied to random access ROM providing time dependent attenuation
Inventor: STEFFENS KLAUS
IPC: H04H60/04
Filed: 1978-09-22
Abstract: The attenuators are adjustable by a digital signal and their operationis controlled by a two-way counter for the pulses of a clock pulse signal which produces the digital signal. The output signal of the counter is passed through programmable read-only memories with random access. They are so programmed, one preceded by an inverter that the desired attenuation characteristic is achieved. An adder sums-up the final output at the terminal. A setting unit adjusts the clock pulse signal frequency. A flip-flop produces the start-stop signal for the counter. Another flip-flop provides the characteristics for the counting mode. The course of the attenuation can now be easily altered by readjusting one of the programmable read-only memories.
Patent DE-2844785-A1 (DE)
Inventor: TUTIYA HIDETAKA
IPC: F16B21/10
Filed: 1978-10-13
Abstract: A retaining spring for fixedly retaining a case band and a back cover of a wristwatch case, which retaining spring comprises a fixing portion secured to one of the case band and the back cover, a weakened or torsionable portion extending from the fixing portion, and an engaging portion connected to the fixing portion through the weakened or torsionable portion and engaging with the other one of said case band and said back cover.
Patent DE-2849137-A1 (DE)
Title: Collection device for broken-up lining in blast furnace - where broken bricks fall into tiltable trough mounted on tractor and are transported out of furnace
Inventor: HOELTER HEINZ ING GRAD
IPC: F27D1/16
Filed: 1978-11-13
Abstract: The device consists of a tractor carrying a trough, of which the side walls are located on longitudinal hinges so the walls can be folded onto the trough base or opened outwards by mechanically adjustable devices. The side walls are also fitted with telescopic legs so they can be supported on the hearth; and the trough can also be tilted by work cylinders. The broken bricks roll down the tilted trough, which can be vibrated to aid transportation of the bricks. The tractor is pref. fitted with a conveyor belt located below the trough and used to remove the bricks; and may possess a seat for a driver or be operated by remote control. Platforms are installed in the furnace shaft for breaking out a used lining; and the stones fall directly into the adjustable trough, via which they are transported out of the shaft.
Patent DE-2850905-A1 (DE)
Title: Constant current power supply for telephone subscriber's appts. - includes automatic compensation for performance differences between complementary transistors
Inventor: ALBERS RAYMUND DIPL ING
IPC: H04M19/00
Filed: 1978-11-24
Abstract: The power supply for each line (a, b) of the subscriber/station (Tln) is obtained from a constant current power transistor circuit (T1, R1, T3, R3) using complementary transistors. In parallel with these are secondar transistors (T2, T4) connected to differential amplifiers (V1, V2). The base of each primary transistor is controlled by its secondary circuit (T2, R2, R5; T4, R4, R6). If the current in the two transistors is not equal the collector polarities are affected causing the auxiliary transistor of the circuit with the low current to pass more current, and at the same time to switch on the low current carrying transistor. Performance differences between complementary transistors can therefore be compensated. If the line (a, b) is open, no current flows but the proposed circuit holds the main transistors fully on so that when a demand occurs constant current operation is immediately established.