baber/WOPTO huggingface dataset:
Patent DE-2653732-A1 (DE)
Title: Silencer for automobile IC engine - has outer case of extruded profiled corrosion resisting aluminium lined with sound insulation
Inventor: ECKERT ROLF DIPL ING
IPC: F01N13/16
Filed: 1976-11-26
Abstract: The silencer has a central section (1e which is made by extrusion of high grade hollow aluminium. An appropriate length of the extrusion is cut off to make each silencer. The section has internal and external ribs (14) projecting radially and running along its length. The silencer is closed at its ends by aluminium end pieces (2) which have ribs matching those of the central section. It is held together by axial bolts (3e running between the longitudinal ribs. Each end piece (2) has a central stub (5) fitting over the exhaust pipe.
Patent DE-2654284-A1 (DE)
Title: Milling cutter with compound tooth form - has inner and outer cutting edges formed as arcs with centres offset from tool axis
Inventor: LANG KARL
IPC: B27G13/08
Filed: 1976-11-30
Abstract: The compound milling tool has at least two milling teeth attached to a basic body provided with a central hole. With each milling tooth (2), the intersection point (A) of the inner rear cutting edge (4) with the tooth breast has a greater radial distance (R1) from the milling tool central point (16) than the point of intersection (B) between the inner rear cutting edge and the back of the tooth. The inner and outer rear cutting edges are formed as arcs around a central point lying outside the milling tool centre. The central points of the arcs describing by the rear cutting edges of all teeth lie on arcs around the tool centre point.
Patent DE-2704393-A1 (DE)
Title: Silo for pasty material which does not easily flow - has discharge auger with core diameter decreasing towards discharge point and constant external diameter
Inventor: WEBER EMIL
IPC: B65G65/46
Filed: 1977-02-03
Abstract: The silo is for pasty material which does not flow easily and has a slewing auger on the bottom to deliver the material to the centre. The auger (5) is of constant external diameter and pitch, but the diameter of its core (15) decreases in the discharge direction, either as the square of the auger length. Where cutters are mounted on the outside of the auger spiral, they can include with the lengthwise axis (8) of the auger an angle smaller than the auger pitch angle, being mounted in rotary bearings. The cutters can be at right angles to the auger axis.
Patent DE-2705149-A1 (DE)
Title: Scaffolding bearing beam fixture - has retaining wedge which passes through slits in one of two inverted U-shaped holders
Inventor: LAYHER EBERHARD
IPC: E04G7/30
Filed: 1977-02-08
Abstract: The bearing beam for a scaffolding framework has a downward opening U-shaped retainer attached at each end. One of the retainers is shaped in such a way that its two shanks (21, 22) protrude beyond the lengthways framework beam (5) on which the bearing beam (1) rests. The shanks incorporate slits (24, 25) to hold a wedge (4) for fixing it on this lengthways beam. One shank may be offset outwards, with a narrower slit than the other, while the wedge led in the two slits is shaped by a blind rivet at its narrow end so that it cannot pass through this narrower slit.
Patent DE-2705175-A1 (DE)
Title: Rolled sheet material dispenser - has pivoted cutter with grip portion bearing against roller to brake strip motion
Inventor: COX TERENCE ALAN
IPC: A47K10/38
Filed: 1977-02-08
Abstract: The dispenser is for sheet material from a roll, and comprises a support for the roll allowing it to rotate and a cutter extending across the path of the sheet as it comes off the roll, the sheet being pulled against the edge of an angle. The support (10) has a housing accommodating the roll (21) and with an opening through which the sheet (30) passes. This opening is formed between two members, the first being the cutter (22), which pivots on a transverse axis and has its tear-off edge (25) clear of the axis and at the outside, while on the opposite side of the axis is a grip portion (26) acting against the second member (18). When the sheet is pulled against the tear off edge, an inner portion of it is held between the grip portion and the second member, preventing its movement towards the outside.
Patent DE-2705318-A1 (DE)
Title: Auxiliary drive for caravan - has electric motor powered by storage battery and coupled to axles via mechanical transmission and belt drive
Inventor: FOERSTER HANS-JOACHIM PROF DR
IPC: B60K25/00
Filed: 1977-02-09
Abstract: The caravan has a series wound electric motor (5) whose drive shaft has a left and a right hand side clutch (6). Drive shafts (7) extend from each clutch to a reduction gear (8). Each gear output shaft has a small belt pulley to turn a large belt pulley (11) fitted to the caravan, road wheel. The electric motor is fed by a storage battery charged during the journey. The battery can be carried by the caravan or by the towing vehicle. The electric motor and clutches may be controlled by pull wires running in enclosed cables. Alternatively two small electric motors driving friction wheels could be mounted on a pivotable bracket and be brought into contact with the respective road wheels when required.
Patent DE-2706142-A1 (DE)
Title: Rotary IC engine - has precombustion chambers with rounded bases and thermal insulation on outside
Inventor: WAGNER ALBERT
IPC: F02B55/14
Filed: 1977-02-14
Abstract: A rotary internal combustion engine has a shaft (1) running lengthwise through the centre of a circular cylinder (4). It carries a rotor with a pair of projecting lugs forming the pistons. A second pair of lugs (2) on a separate disc rotating at a different speed complete the enclosure of the working spaces. Precombustion chambers (V) are inserted in arms projecting radially from the cylinder. The precombustion chambers have rounded bases and smooth inner surfaces. They are made of thin section heat resisting steel and have a thin layer of thermally insulating material on their outsides. This construction raises the temp. in the precombustion chambers which enables a higher pressure to be reached. The output of the engine is thereby increased.
Patent DE-2706881-A1 (DE)
Title: Electric pulse counter circuit - has blocking device between counter and controlled device, released at end of count
Inventor: SNOEIJER WILLEM DIPL ING
IPC: H03K21/12
Filed: 1977-02-17
Abstract: Pulses are used to control a chain of identical bistable flip-flops through a counting input. Each pulse applied to the input changes the state of the first flip-flop, and each second change of any of the flip-flops changes the state of the nearest following flip-flop. The total content of the counter is defined by all the states of the flip-flops forming a binary number. When the reading is at a maximum, the next pulse resets the counter to its initial state defined by identical state of all flip-flops. Outputs (Q, Q) of individual flip-flops (S1, S2...) are connected to a digital device (D) to be controlled, and to a blocking device between the counter and the controlled device (D), which is unblocked only at the end of the counter state produced by the pulses applied to the counter input.
Patent DE-2725780-A1 (DE)
Title: Nitrogenous condensn. prods. useful as surfactants - prepd. by condensing imidazoline deriv. and unsaturated dicarboxylic acid and hydrolysing prod.
Inventor: CHRISTIANSEN ARVID
IPC: C07D233/14
Filed: 1977-06-03
Abstract: Nitrogenous condensn. prods. of formula (1a) are new In (Ia) is a 4-5C satd. residue of a alpha, beta-unsatd. dicarboxylic acid in which the carboxy gps. are on adjacent C atoms and the double bond is between the two C atom or immediately adjacent to one of them, and where the carboxy gps. may be neutralised with a base or esterified with a 1-6c alcohol; and R is 5-25C alk(en)yl. (Ia) are used as surfactants in emulsions, cosmetics and detergents, opt. combined with other surfactants. In an example, lauric acid was condensed with aminoethylethanolamine and the prod. reacted with itaconic acid. The resulting cpd. was hydrolysed to give (Ia: R=CH3(CH2)io-; Y-=-CH2CH(COOH)CH2COO-).
Patent DE-2729771-A1 (DE)
Title: Gas bubble distributor for bathing massage - has leads for gas, air and pressurised water with chamber producing gas-water mixt.
Inventor: HIRTZ HANNS-JOACHIM DR
IPC: A61H33/02
Filed: 1977-07-01
Abstract: Appts. delivers a gas or gas mixt. in the form of finely distributed gas bubbles in a filled bath. It provides a bubbling source for massaging along the length of the human body while lying in the filled bath. It has no movable parts and takes up a small space in the order of 15x8x5 cm. A lead is provided for the gas. A lead for air and a lead for pressurised water open into a chamber (10). The latter (10) has an outlet for the resulting gas-water mixt. The chamber (10) can be formed as a pipe section.
Patent DE-2734786-A1 (DE)
Title: Wear indicator for disc brakes - has graduated rod and tube insertable through hole in caliper
Inventor: MERZ HORST
IPC: F16D66/02
Filed: 1977-08-02
Abstract: The rear indicator for disc brakes consists of a tube (4) insertable through a hole (3) in the brake caliper into engageable with the back of one of the pad plates (5). A rod (7) is insertable through the tube and through a hole (8) in the plate into engagement with the disc (12). The combined thickness of the plate and the pad is then observable on a scale (13) on the outer end portion of the rod, the scale being read against the outer end of the tube. This gives an indication of the wear of the pad.
Patent DE-2736258-A1 (DE)
Title: Insecticidal cyclopropane-carboxylate ester prepn. - from (2)-halo-cyclo:butanone, aldehyde and cyanide
Inventor: BRINK MARINUS JACOBUS VAN DEN
IPC: C07C255/53
Filed: 1977-08-11
Abstract: Prepn. of cyclopropanecarboxylate esters of formula (I) (where R1-5 are H or opt. substd. hydrocarbyl) comprises reacting an aldehyde of formula R5CHO (II) with a cyanide salt (III) and a 2-halocyclobutanone of formula (IV): (where Hal is halogen) The process gives good yields (e.g. up to 91%) and 3 avoids separate prepn. of the cyclopropanecarboxylic acid and the corresp. acid halide. In an example, alpha-cyano-3-phenoxybenzyl 2,2,3,3,-tetramethylcyclopropane-carboxylate is prepd. from 3-phenoxybenzaldehyde, KCN and 2-chloro-3,3,4,4-tetramethylcyclobutanone.
Patent DE-2742400-A1 (DE)
Title: Portable holder for ball games equipment - has racquet and ball compartment with opening for easy access to racquet handle
Inventor: LENTZ WILHELM ERNST
IPC: A63B71/00
Filed: 1977-09-21
Abstract: The racquet holder is designed for tennis, tabletennis, badminton racquets etc. which fit into the racquet compartment (2) which has an opening (2b) where the racquet handle lies readily accessible. The holder can be fitted on either side with shafts (7a) designed to hold the tennis balls, shuttlecocks etc. The racquet compartment can be designed so that the racquets lie flat or stand on one edge. The holder can be provided with hooks for towels, clothing etc. and with further shelves for bottles, score cards etc.
Patent DE-2742565-A1 (DE)
Title: Tape recorder mode selector switch mechanism - including rapid rewind button coupled to carrier plate for magnetic head to move it to operative position
Inventor: LAUFER HELMUT
IPC: G11B15/18
Filed: 1977-09-22
Abstract: The tape recorder switch mechanism has operating elements (14) for selecting the recording and playback modes coupled to a sliding switch for energising the tape transport motor (7) and for moving the magnetic head (4, 5) onto contact with the tape. A further operating element (19) is sued for selecting the rapid tape rewind mode and is coupled to the carrier plate (2) for the magnetic head,for moving the latter from the operative position. A switch (13) for the motor current is coupled to the carrier plate (2) for closing in response to movement of the latter. Pref. the latter operating element (19) has a nose cooperating with a notch in the carrier plate (2) to hold it in the retracted position.
Patent DE-2800528-A1 (DE)
Title: Continuous slitting system for hot metal - uses grinding disc on carriage to give cuts at 90 degrees to direction of motion
Inventor: PAWLOWICZ MANFRED
IPC: B23D45/20
Filed: 1978-01-07
Abstract: An arrangement is used for slitting continuously moving hot rolling stock. A cutter is moved parallel to the material to be cut. Slitting is carried out by a grinding fixture (1) with a slitting disc, which can be lowered towards the material to be cut. The grinding fixture can move on a track (6) which is parallel to the roller track over which the material to be cut moves. The grinding fixture has its own drive arrangement (35) which moves it along its track. An arrangement (23, 29, 33) determines the relative speed between grinding fixture and rolling stock and operates a control system (34) which releases and returns the grinding fixture.
Patent DE-2801937-A1 (DE)
Title: Hydrostatic extrusion press using castor oil or similar liq. - where oil is recirculated to extruder barrel via degassing appts.
Inventor: JOHANNISSON TOM DIPL ING
IPC: B21C23/00
Filed: 1978-01-18
Abstract: Hydrostatic extrusion press for mfg. metal profiles or tubes, uses a pressurised barrel with an extrusion die at one end and a ram creating the pressure at the other end of the barrel. A hydraulic fluid, viz. castor oil or an organic ester with lubricating properties, surrounds the blank in the barrel; and the inlet for the fluid is connected to a device removing gas from the fluid. Pref. appts. includes a fluid collection tank leading to a degassing chamber followed by a tank where the degassed fluid is held below an atmos. of nitrogen or other inert gas. Used for the extrusion of Cu or its alloys, or other metals such as Al or its alloys, where the blank is preheated to min. 200 degrees C. The working life of the steel liner in the barrel is increased, by preventing cracks due to metal fatigue.
Patent DE-2805911-A1 (DE)
Title: Heated external driving mirror - with heating elements linked to ignition switch and illuminated dashboard switch which operates relay
Inventor: BOEDEN HINRICH
IPC: H05B3/84
Filed: 1978-02-13
Abstract: The glass of the external driving mirror is threaded with an array of electric beater wires which are connected to the ignition side of the vehicle electric supply. An illuminated dashboard control (5) operates the heaters, in a similar manner as the rear windscreen demister panel, to enable the driver to have optimum visibility. The dashboard switch can operate a remote relay (3) to connect the heaters to the supply. If the ignition is switched off then the heaters are automatically disconnected to prevent the battery from running down.
Patent DE-2806782-A1 (DE)
Title: Converter system for single phase input - has single or multiphase output at changed frequency to reduce transformer size required for railway traction
Inventor: DEPENBROCK MANFRED PROF DR
IPC: H02M5/44
Filed: 1978-02-17
Abstract: The application is to electric traction equipment where the primary supply is at low frequency, for example 16 2/3 Hz. The power equipment, especially transformers, on board the train can be made smaller and more economic in operation by raising the operating frequency. The mains input (1) is rectified (3) and fed to two inverters in series (4, 5) of which at least one (5) is forced commutated. The other is shunted by a capacitor (9). Both feed primary windings (10, 11) of a transformer (12) whose secondary (14) feeds the load via further rectifier-inverter links (15, 16, 17). One transformer winding is connected to a capacitor (13). The capacitors (9, 13) act as reactive load compensators.
Patent DE-2816617-A1 (DE)
Title: Compressed air driven reciprocating piston motor - has slide valve driven from piston rod by snap action spring loaded pivoted lever
Inventor: ROSER ERICH
IPC: F01L21/04
Filed: 1978-04-17
Abstract: The pressurised air-driven motor comprises a reciprocating piston(2), a piston rod(3), and a sliding piston valve parallel to the rod. The sliding valve drive(13) is moved at the end of each piston(2) stroke by a snap-action element. The lever(21) of the element pivots(26) about an axis at right angles to the plane through the rod(3) and the valve slide(13). The end of the lever moves between two spaced stops(18, 19) on the slide(13), and is connected by a spring(29) and a bracket(27) on the piston rod(3) such that the spring crosses the pivot(26) axis during each piston(2) stroke.
Patent DE-2827075-A1 (DE)
Title: Hand-held remote control unit for electronic equipment - has enabling and disabling switch for keyboards on opposite sides of flat rectangular casino
Inventor: HUNGER JUERGEN DIPL ING
IPC: H01H9/02
Filed: 1978-06-16
Abstract: The hand-held remote control unit, for e.g. TV receiver, has a rectangular casing with its manually operated controls grouped into two units on opposite sides of the casing. The two keyboards can be enables and disabled automatically by a gravity switch depending on which way up the casing is held (the down keyboard is disabled). Instead of a gravity switch, an ordinary switch may be used or a photocell-type switch. Exclusive-OR logic is connected to the outputs of the enabling/disabling switch or switches. The enabled/disabled state is diaplayed.
Patent DE-2827393-A1 (DE)
Title: Combined dumb valet and chair - has backrest forming suit hanger with sliding members and seat concealing cufflink tray
Inventor: GUENTHNER HEINZ
IPC: A47C13/00
Filed: 1978-06-22
Abstract: The dumb valet which has a usual trouser and jacket hangers, cuff-link trays etc. is desgined as a seat unit with a backrest (3) and seat (2), the backrest serving as the suit holder. There can be a compartment (19) beneath the lift-up seat plate for cuff-links, small change etc. The trouser hanger (9) can be fitted concealed in the coat hanger (7) at the top of the backrest from where it can be extended against spring force and swung into the position of use inclined behind the backrest allowing trousers to hang behind it.
Patent DE-2831152-A1 (DE)
Title: Flame cut continuously cast billets or slabs - where slag beard formed during flame cutting is melted and blown away by gas burners
Inventor: HENNECKE FRANZ
IPC: B22D11/126
Filed: 1978-07-15
Abstract: The continuously cast prod. is cut to length via a flame cutting machine, but this operation leaves a beard of slag which projects downwards from the lower cut edge of the billet or slab. The beard is melted by heat and blown away via the kinetic energy of a gas stream. The heat is pref. supplied in at least two directions, esp. by using two burners joined together so the two streams of hot gases intersect at the slag beard. The burners pref. also supply streams of O2 which burn parts of the billet adjacent to the slag beard, thus augmenting the heat and providing gas streams which blow away the slag. The invention eliminates the slow and costly mechanical methods previously employed to remove the beard.
Patent DE-2841680-A1 (DE)
Title: Radio transmission system for audio signals - shifts audio signal into higher frequency band and radiates it as ultrasound
Inventor: GRIESE HANS-JOACHIM DR ING
IPC: G03B31/00
Filed: 1978-09-25
Abstract: The free-space transmission system transfers audio signals from a microphone to an amplifier and/or sound recorder. It converts the audio signal into a signal of higher frequency by suppressed-carrier single-sideband modulation and radiates it as ultrasound via an electroacoustic transducer. The ultrasonic wave is received on the normal way by a receiver with relatively high directivity. The directivity may be achieved by using an interference tube or by using a reflector. The receiver may be fitted into a film camera.
Patent DE-2842446-A1 (DE)
Title: Projectile for smooth bore barrel - has forward propellant chamber with gas tubes generating rotary movement
IPC: F42B10/26
Filed: 1978-09-29
Abstract: The projectile is for a smooth-bore barrel, having a chamber open to the rear and accommodating a propellant charge behind the body. The chamber is divided into two sections (4, 5). The forward chamber accommodates the greater part of the charge and communicates with the rear one so that gas can flow between them via tubes (3) fixed rigidly to the body and imparting a rotary movement to it. The two chambers can be one behind the other in the axial direction, and are connected together by a ring of gas tubes.
Patent DE-2900888-A1 (DE)
Title: Spun filament felting - is constructed to have a higher shear resistance in one direction
Inventor: SCHNEIDER HEINRICHM DIPL-CHEM
IPC: D04H3/105
Filed: 1979-01-11
Abstract: In the manufacture of a thermoplastic spun felting, the material is formed from virtually continuous filaments deposited at random. The material has a higher shear resistance in one direction than in the other direction at right angles to it, and it is needle bonded. The fabric is drawn in the direction of lower shear resistance to 20-200% of its original length at a temperature of 85-25 degrees C below its crystallite melting point. In the other direction, of higher shear resistance, the dimensions are held firm or, at the same time, only altered by plus-or-minus 10% of the original length in that direction. The process gives a material with improved characteristics, particularly its behaviour when attached to a stentor frame.
Patent DE-2901331-A1 (DE)
Title: Biological waste liq. treatment - by oxygen enrichment before entry in trickling filter tower
Inventor: ALBERSMEYER WALTER DR
IPC: C02F3/04
Filed: 1979-01-15
Abstract: The Parent Patent No. 2746648 described a biological purification system for waste liquids and gases in a tower, filled with a packing of plastic elements where the quantity, temperature and concn. of the injected oxygen are adjustable. The oxygen is introduced to the packing elements through the waste liquid which has been enriched with oxygen before its entry. A repeated circulation of oxygen through the liquid results an oxygen economy. The permits a supersaturation of the waste liquids with oxygen so that the physiological capacity of the microorganisms and the efficiency of the treatments are improved, even for wastes which are very difficult to clean.
Patent DE-2902419-A1 (DE)
Inventor: SELLNER KURT
IPC: F16M11/20
Filed: 1979-01-23
Abstract: The invention relates to a stand for optical devices, particularly cameras, wherein a spacer (9) adjustable in length carries a securing head (6) at one end and at its other end legs (15, 16, 17) which are mounted by supporting elements (12, 13, 14) for extension from an inoperative to an operative position. In order that such a stand may be effectively used as a shoulder stand as well as a table stand, it is suggested that the supporting elements (12, 13, 14) for at least two of the legs (15, 16, 17) be rotatable about the spacer (9) so that the legs can be set to form a table stand at a first operative position in which they are substantially equally circumferentially spaced and to form a shoulder stand at a second operative position in which they are diametrally oppositely disposed by at least two of the legs covering or abutting each other.
Patent DE-2908756-A1 (DE)
Title: Piston engine with main and auxiliary chambers - has different pressures and pressure rises generated in chambers to promote turbulence
Inventor: SPURK JOSEPH H PROF DR ING
IPC: F02B19/02
Filed: 1979-03-06
Abstract: The piston engine has a cylinder with a main chamber in which combustion takes place, also one or more auxiliary chambers connected at least temporarily to the main one. The piston and cylinder are so shaped that in the main combustion chamber (4) and the auxiliary one (2) during the compression and power strokes different pressures and pressure rises occur. In the passages (3) between the chambers control devices ensure that as the higher-pressure gases flow from one to the other velocity areas are generated. These aid turbulence, partic. in the quench zones of the main chamber, and thus the combustion process.