baber/WOPTO huggingface dataset:
Patent DE-2856242-A1 (DE)
Title: Easily released non-return valve - has locking mechanism holding release piston in alternate positions
Inventor: HAEUSSER HERBERT
IPC: F16K15/18
Filed: 1978-12-27
Abstract: The non-return valve has a ball working against a seat in a passage through which flow can take place in either direction. The ball is moved by a hydraulic release piston, permanently subjected to a return force, so that in a first position and when subjected to pressure below a lower control pressure the return force cannot be overcome, while in a second one and when subjected to a pressure above an upper control pressure, release takes place. The piston (8) has an alternate locking mechanism holding it in the first or second positions below the first control pressure. Change -over between these positions takes place on the occurrence of a pressure above the upper control pressure, following one below the lower one. The opening pressure acting on the ball (33) is always used as the control pressure.
Patent DE-2912910-A1 (DE)
Title: Hunting rifle bullet for game - is weakened by notches and recesses in tapered end to slow down flight at target, with centre end hole closed by detachable plastics cap
Inventor: SCHIRNEKER HANS-LUDWIG
IPC: F42B10/48
Filed: 1979-03-31
Abstract: The bullet tapers to the leading end and is weakened in this area by recesses at an angle to the bullet axis and by notches (5), one wall of which (46) resists the rotation of the travelling bullet. The bullet has pref. a centre hole (3) to take a sealable insert (4a), or be covered by detachable plastics cap (44). The notches in the bullet body may slope opposite to the rotation direction of the bullet. Two cams (42) at the forward end of the bullet are set with their leading faces (46) at an acute angle to the bullet axis (41) and opposed to its rotation. The cap may have rear rim mounted bosses (49) fitted between the cams.
Patent DE-2914382-A1 (DE)
Title: Plastics swimming pool shell sections joint - comprises inside overlap seam fitting outside overlap groove
Inventor: LAHRTZ HANS-KARL
IPC: E04H4/00
Filed: 1979-04-10
Abstract: A series of plastics pieces are connected where they come together, to make up a shell for a swimming-pool or swimming baths structure. The joint connection is provided by a large volume, inward-open groove in the external overlap area of one piece and a seam to fit this, protruding outwards on the internal overlap area of the other piece. The groove and pref. hollow seam may be rectangular or slightly trapezoid in cross-section. This permits rapid secure connection between large watertight shell sections.
Patent DE-2915658-A1 (DE)
Title: Adhesive sheet stacks binding machine - has carriage with clamps to convey one stack to adhesive application point and second stack to roughening point
Inventor: HEIMANN ALFRED ING GRAD
IPC: B42C5/04
Filed: 1979-04-18
Abstract: The adhesive binding machine is designed to bind sheet stacks using hot adhesive. It includes a carriage fitted with clamping devices which is moved over an adhesive application roller from an inserting station to a removal station along the length of the material being bound. In the carriage there is a clamping device. This is used to convey a first sheet stack to the adhesive application point and a second clamping device for the simultaneous moving of a second sheet stack to a roughening point.
Patent DE-2915751-A1 (DE)
Title: Organo-polysiloxane(s) with silicon-bonded carbamoyloxy gps. prepn. - by reacting hydroxyl-gp.-contg. polysiloxane with isocyanate
Inventor: KAUFMANN RUDOLF DIPL CHEM DR
IPC: C08G18/24
Filed: 1979-04-19
Abstract: Organopolysiloxanes (I) contg. substd. carbamoyloxy gps. bonded to Si via O are prepd. by reacting (a) >=1 organopolysiloxane (A) contg. >=1 Si-bonded OH gp. with (b) >=1 mono- or polyvalent organic isocyanate (B), in the presence of an organic Sn cpd. (C). (I) can be used as (in)organic fibre lubricants, as coatings (e.g. on glass), for improving the gloss and feel of synthetic and natural leather, and as additives in the prepn. and processing of polyurethanes. The prods. contain the grouping triple bond SiOCO-NH-.
Patent DE-2918845-A1 (DE)
Title: Semiconductor component screw connection to sheet metal heat sink - uses torque socket spanner for connecting screw, whose torque is variable during connecting process
Inventor: WEGENER ROLF ING GRAD
IPC: H01L21/50
Filed: 1979-05-10
Abstract: In the production of radio and TV receivers, the power transistors for e.g. the low frequency end stage, or the line end stage, have to be secured with respective housings to a sheet metal heat sink. Between the transistor housing and the heat sink is inserted an electrically insulating foil and one or several layers of heat conductive paste. The securing screw connection is performed by a socket spanner (15) whose torque is variable during tightening of the screw (6). With the reduced tightening speed the torque of the spanner first rises. Then, on attaching a preset rated value it remains at the same for several seconds and then is disconnected. Pref. the timing of the priod of the constant torque starts before it has reached its rated value. However, it may begin when the torque has reached approximately half of the rated value. The constant torque period may be 4 to 5 sec. With an M3 screw the rated torque may be approximately 40 Ncm.
Patent DE-2934987-A1 (DE)
Title: Roof ventilator with centrifugal fan - has spiral plate and body for flat pressure-volume characteristic
Inventor: ZENKNER KURT DR ING
IPC: F24F7/02
Filed: 1979-08-30
Abstract: The roof (4) ventilator has a centrifugal fan in a housing connected to an intake in the roof and discharging away from it. A guide body (6) separates the inlet and outlet and a spiral guide plate (2) for the outgoing current encloses the rotor between itself and the body. The plate and body are arranged so that the fan works to a flat horizontal pressure/volume characteristic. The turbulence centre is kept inside the rotor and away from the peripheral blades under normal conditions. When throttled down, the centre is kept inside the blades and allowed to move along them against the direction of rotation. This converts the maximum amount of dynamic energy to static on the way to the outlet.
Patent DE-2947670-A1 (DE)
Title: Electromotor using relatively weak permanent magnets - having poles faces inclined w.r.t. magnetic yoke and large compared with its effective cross=section
Inventor: GAKENHOLZ WERNER
IPC: H02K23/04
Filed: 1979-11-27
Abstract: The motor has an armature and a stator with at least two pole shoes and at least one permanent magnet in the yoke between the pole shoes. Each magnet (14) is arranged such that its pole faces are inclined w.r.t the magnetic yoke (11) and large compared to the effective cross-section of the yoke. Each magnet is arranged so that the direction of the flux in it encloses an angle greater than zero and less than ninety degrees with a straight line (15) forming a tangent to a circle in the centre of the magnet, the centre of the circle lying on the axis (13) of the armature (10). The magnets are made of a hard magnetic material such as strontium ferrite or barium ferrite.
Patent DE-2948331-A1 (DE)
Inventor: MOMOSAKI EISHI
IPC: H03H9/215
Filed: 1979-11-30
Abstract: Cutting a quartz tuning fork crystal vibrator at a preferred angle and with a thickness which establishes a close coupled relationship between the flexural and torsional modes of vibration of the arms or tines produces a vibrator having a highly favorable cubic frequency temperature characteristic at predetermined frequencies. Weight added to the ends of the vibrating tines reduces the frequency of both flexural and torsional vibration, whereas weight added at nodal points in the flexural vibration primarily reduces only the torsional vibrational mode. Accordingly, a wide range of frequency adjustments is possible. Deviations from the desired crystal operating frequency due to manufacturing variances are adjustable by sequential weight modifications while the desirable cubic temperature characteristic is retained. High accuracy over a wide temperature range permits operation in oscillator circuits at relatively low frequencies and with attendant low power consumption. Close coupling between vibrational modes occurs when the difference between the flexural and torsional frequencies is </=0.15 of the flexural frequency. The principles for dimensioning the crystal, and adjusting thickness and weight, are applicable to both fundamental and overtone frequencies.
Patent DE-2950102-A1 (DE)
Title: Visual monitoring system for radio or television - uses controller image generator and moving bar chart display
Inventor: WELLHAUSEN HANS
IPC: G05B19/048
Filed: 1979-12-13
Abstract: The image mixing device for visual monitoring of the progress of a process gives an analogue representation of processes consisting of several operations occurring in parallel or in a coordinated series. It is applicable to radio and television operating procedures, e.g. for transmitter control or magnetic tape interface controller. The process data from a process progress controller is reproduced on a visual display screen. The controller has an image generator which arranges that the data appear and disappear on a time axis to form a dynamic bar chart. The visual display screen is divided into several fields with different time scales. The image generator contains a time scale changeover circuit. Logarithmic time scales are used and the bar chart has additional markings superimposed upon it.
Patent DE-3006116-A1 (DE)
Title: Detachable heel piece for shoes - is made of any suitable material, of various sizes and shapes, to fit closely on high heel of ladies shoe
Inventor: ZAJONZ ARNOLD
IPC: A43C13/00
Filed: 1980-02-19
Abstract: The detachable heel-piece is for placed onto a shoe heel, and can be removed easily, and can be of various sizes and shapes. The heel-piece can be made of plastics, rubber, leather, metal or other suitable material. The heel-piece can be placed over heels of fashionable shoes to protect them from damage, or can be used to protect sensitive flooring from the damage caused by stiletto heels.
Patent DE-3013734-A1 (DE)
Title: Folding chair with hydraulically actuated clamping joints - uses hydraulic pressure to lock swivel joints in relative positions
Inventor: LAMBRECHT JUERGEN DIPL ING
IPC: A47C1/024
Filed: 1980-04-10
Abstract: The chair has several swivel connected elements (1,2,3) which can be locked in different angular positions relative to each other by hydraulically operated clamping members. The clamping members of two coaxial swivel joints are pref. hydraulically actuated simultaneously. The tubular frame (15) of one of the swivel elements pref. contains a hose (20) filled with hydraulic fluid and adjoining the inner wall of the tube. This hose projects at both ends out over the end of the tubular frame and into the joint area. The frame thus has at both ends joint members (25) forming a hose chamber (46) and, slit over most of their length, forming two clamping jaws (35,36).
Patent DE-3014835-A1 (DE)
Title: Mechanically stacking mirror-image pairs of sealed packs - rotating head with radial grips holds turns and ejects packs
Inventor: BARUFFATO ROBERTO
IPC: B65B35/50
Filed: 1980-04-17
Abstract: Sealed packs in parallel series are stacked successively in at least single pairs of mirror-image units, especially in machines producing the sealed packs themselves. The machine used has (a) a revolving head carrying one or more pairs of rotating arms, which extend parallel to and over the individual packs and grip them (b) intermittent drive for the head (c) mechanism making the grips hold and then release a pack each time the head turns one step. The arms rotate through 90 deg. with/against the head when the latter turns and then return when the head completes a revolution; when the grips release a pack synchronised ejectors move up to the arms. High efficiency rapid operation, compact machine is provided.
Patent DE-3016984-A1 (DE)
IPC: C01G21/06
Filed: 1980-05-02
Abstract: A method and an apparatus for the production of industrial lead oxide involving mixing molten lead and air in a reactor. A particularly advantageous, having a desired particle size can be obtained with a PbO content of considerably more than 99%. The lead flow is introduced at a constant and even rate and the air flow is altered very slightly in order to maintain the pre-determined reaction temperature having fluctuations of a maximum of +/-5 DEG  C. The constant and steady infeed of the lead flow is achieved by using an apparatus according to the invention. The apparatus, which is situated above the reactor, includes a supply vessel charged with molten lead from a melt container, the supply vessel having an exchangeable nozzle which is provided with a control-operated cleaning pin. The nozzle extends into a reaction space and the supply vessel is connected to the melt container via a feed line and an overflow. The nozzle can also be of a known spray nozzle type which is fed with heated compressed air via a line running through the said melt container.
Patent DE-3018803-A1 (DE)
Title: Telephone or address card index with selector keyboard - consists of housing with drawer containing card stack with keys actuating two armed levers to select required cards
Inventor: NAGEL THEO
IPC: B42F17/34
Filed: 1980-05-16
Abstract: The index card selecting installation consists of a flat housing with a drawer section guided inside it carrying a stack of loose cards. The selector keyboard in the form of pretensioned two-armed levers is attached providing swivel movement on an axis with its bearing transverse to an inside the housing. That part of the two-armed lever directed upwards can be manually operated to select the required cards with the horizontal arm simultaneously making contact with the cards in the stack. A pocket (13) has a detachable hold on the drawer section (11) inside the housing (10) for an individual reception of the cards (12) each of which has a hole or slot punched pattern along its front longitudinal edge extending over the whole width of the card.
Patent DE-3021093-A1 (DE)
Title: Variable compression piston for IC engine - has crown supported by oil chamber controlled by spring-loaded valves
Inventor: HAAS ECKHARD DIPL ING
IPC: F02B23/06
Filed: 1980-06-04
Abstract: The I.C. engine has a piston with a main body and a crown which can move relative to the body to alter the compression ratio. An oil chamber is formed in the piston by the movable crown, base plate and bellows. The oil flow is controlled by a spring loaded inlet valve and spring loaded outlet valve. Movement of the crown is restricted during the suction stroke by a damper. Oil is supplied from the lubricating system via the connecting rod through a passage, with an opening and slider.
Patent DE-3024694-A1 (DE)
Title: Tetra:acetyl ethylene di:amine prodn. from ethylene di:amine - by reaction with acetic acid and anhydride in several cycles, useful in detergent as perborate activator
Inventor: HANNAM JOHN
IPC: C07C231/02
Filed: 1980-06-30
Abstract: In each cycle of a multistage process for the prodn. of N,N,N',N'-tetraacetyl-ethylene-diamine (I), N,N'-diacetyl- ethylene-diamine (II) is reacted with acetic anhydride (III), (pt. of) which is recovered from another cycle, giving a reaction mixt. of (I) and (III). Acetic acid (IIIA) is distilled from this and the distn. residue is worked up to pure (I). One or more of the following stages is employed: (1) (III) is added to the reaction mixt. before distn. of (IIIA) is complete; (2) In each cycle, the (II):(III)molar ratio in this stage is min. 1:6; (3)The total vol. (per. vol. unit of reaction mixt. in this stage) of distillate distilled from the reaction mixt. in one cycle is greater than the total vol. distilled off in a preceding cycle; (4)Working up of the distn. residue involves recrystallisation of (I) from (III) and recirculation of the recrystallisation liquid to the reaction with (II). (I) is useful in detergents etc., as perborate activator. The yield w.r.t. ethylene diamine (IV) and the utilisation of (III) are improved greately without impairing the purity of (I).
Patent DE-3024734-A1 (DE)
Title: Inclination angle measurement device - is cube contg. sphere filled with liquid and contg. ballasted spherical indicator
Inventor: SINSEDER ALFRED
IPC: G01C9/14
Filed: 1980-06-30
Abstract: The inclination angle measurement device has a liquid-filled housing with a read-off scale and a surface which is placed against the surface whose inclination is being measured. An indicator element moving freely in the liquid is set in the direction of gravity. The cubic housing (2) contains a spherical liquid container (4). On one or more surfaces the housing has a circular viewing aperture (8) whose centre is aligned with that of the spherical container and which has a peripheral scale (12). The indicator element is a sphere (14) moving freely in the container (4) and with a ballast wt. (16). and horizontal (20) and vertical (18) marking lines.
Patent DE-3026346-A1 (DE)
Title: Automatic stretch annealing plant - for the tubular sheaths of electric resistance heater elements, where hot sheath is stretched to exact length
Inventor: DUDECK GUENTER
IPC: C21D1/40
Filed: 1980-07-11
Abstract: Each end of the heater is clamped by a pair of tongs, and then a high voltage is fed through the tubular sheath of the heater via the tongs so the sheath reaches its annealing temp. The voltage is then adjusted to keep the sheath at its annealing temp. while the tongs are moved apart from each other to stretch the sheath. The pref. stretch-annealing plant includes a hoist for automatically loading a heater into the tongs; and one pair of tongs is driven along a traverse by a work cylinder to stretch the tubular sheath on the heater. A fully automatic and inexpensive process, in which annealing of the sheath is combined with its stretching to an exact specified length.
Patent DE-3032330-A1 (DE)
Inventor: KRAUSER MICHAEL
IPC: B62J9/00
Filed: 1980-08-27
Abstract: 1. Motor cycle pannier (1) consisting of a lower pannier part (10) and a pannier lid (20), with a respective stiffening frame (11, 21) lining the opening of each pannier part, with hinges connecting the lower pannier part and the pannier lid each with the other, with locks for the closing and locking of the pannier, with a concealable carrier handle (44) and with devices and convexities at the base of the lower pannier part (10) for the introduction of the pannier into and securing of the pannier at a mounting (50) mounted at a motor cycle, characterised thereby, that the stiffening frame (11) and the lower pannier part (10) as well as the stiffening frame (21) and the pannier lid (20) are respectively constructed integrally and that mounting and guide parts (10a, 11, 18 or 20a, 21b, 21d), into which the hinges are clippable in the form of film hinges (30) for the articulated connection of the lower pannier part (10) and the pannier lid (20), are shaped on at the lower pannier part (10) as well as also at the pannier lid (20).
Patent DE-3032575-A1 (DE)
Inventor: ROTHER BRUNO
IPC: B29C41/04
Filed: 1980-08-29
Abstract: A process for mounting a baseplate to a centrifugally cast, synthetic resin pole during the fabrication of the pole, the process comprising the steps of providing a mold having an inner wall the shape of which conforms to the outer surface of the pole and having a longitudinal end thereof open, providing a baseplate having a pipe connected centrally thereon and extending perpendicularly therefrom, attaching the baseplate to the mold such that the baseplate abuts the open end of the mold and such that the pipe extends within the mold and an annular gap is formed between the pipe and the inner wall of the mold, rotating the mold about its longitudinal axis, and injecting the synthetic resin into the mold in an amount sufficient to fill the annular gap. A baseplate for use in the mounting process is also disclosed.
Patent DE-3032754-A1 (DE)
Title: Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole
Inventor: RABE HANS-JUERGEN
IPC: G01K1/16
Filed: 1980-08-30
Abstract: The temperature sensor is arranged with a large heat transfer surface of the conducting cable (1) and the support base. It obviates the need for any welding processes. It is used to measure temperature differences when computing the amount of heat consumed in a system. The support base is in the form of a block with four surfaces made from a material with a good thermal conductivity. The temperature measuring element (3) is inserted in a hole in the block (2) and stuck with a temperature resistant adhesive containing copper. The adhesive is in the form of a paste.
Patent DE-3034655-A1 (DE)
Title: Plastics drawer extension for desks - has shaped moulded side guide edges to increase stability and withstand loads
Inventor: SKORKA THOMAS ING GRAD
IPC: A47B88/20
Filed: 1980-09-13
Abstract: The extending slide shelf for writing desks has deep moulded recesses (13) running either side in the direction of movement. The edges are moulded into longitudinal and if required transverse reinforcement ribs (14,19). The bending forces which occur during use are now partially dissipated by the guide edge shape and imparted to the ribs. A saving of material is achieved during mfr. since the hitherto customary additional ribs can be dispensed with. The mfr. process is also simplified.
Patent DE-3037083-A1 (DE)
Title: Cash register and change dispenser for convenient operation - has adjacent coin and note insertion and change dispenser
Inventor: SCHULDT GERHARD
IPC: G07G1/00
Filed: 1980-10-01
Abstract: A cash register and change dispenser arrangement does not limit the freedom of movement of operator. All the operating controls are placed within a small volume. The table plate contg. the money drawer has an integral coin receptacle consisting of a slot (31) in the top of the table and a coin holder beneath. The coin holder is a slide-in unit with a safety catch positioned on the same side of the money drawer as the goods compartments. On the opposite side of the coin receptacle from the money drawer is an output slot for the sales receipt. The coin holder may consist of several chambers, each with an insertion slot in the surface of the table and each in the form of a removable unit.
Patent DE-3037576-A1 (DE)
Title: Reversible cutting bit for machine tool - has recess for near-prismatic bit with diametrically opposed cutting edges
Inventor: HOCHMUTH WALTER
IPC: B23B27/16
Filed: 1980-10-04
Abstract: The metal cutting tool comprises a tool bar provided with a recess in which a cutting bit is releasably secured by a clamp element (6). The bit is approximately prismatic in shape and has two diametrically opposed cutting edges (7,8) whilst two swarf directing faces (10,11) intersect along one (9) of the other two edges (9,12). Each face (10,11) is at an acute angle to the opposite clearance face (4,13), subject to the main cutting force. The angle diverges in the direction of the rear support face (15) in the recess. These faces act as alternative clamping faces for the element in the two possible positions of the bit.