baber/WOPTO huggingface dataset:
Patent DE-2500679-A1 (DE)
Title: Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting
Inventor: WENDT HANS GUENTER
IPC: B25B23/145
Filed: 1975-01-09
Abstract: The hydraulically actuated screwdriver has a hydraulic motor which is driven by a pump. The motor drives a screwdriver or spanner by using an adjustable regulator valve and the pressure and flow rate regulator for changing the rotating direction. The maximum torque applied is set by the regulating valve. The regulating valve is connected to an adjustable pressure gauge and to a control valve for reversing rotating directions so that the required torque can be applied or released. A solenoid switch is provided on the tool handle for direct on and off switching. This hydraulic tool can be also used in conjunction with hydraulic units used for other purposes.
Patent DE-2508817-A1 (DE)
Title: Power transistor circuit for cyclic switching - load current proportional signal is induced in base-emitter circuit
Inventor: KNUTH DETLEF DIPL ING
IPC: H02M1/092
Filed: 1975-02-26
Abstract: The use of power transistors in high current switching circuits in place of conventional or gate-turn-off thyristors makes possible a reduction in control dircircuitry and power consumption. to operate a transistor satisfactorily with time variable collector current a proportional signal is injected into the base-emitter circuit. This is achieved by addding a current transformer whose primary winding is in series with the load, and one of whose secondary windings provides the requisite base current. The additional secondary winding and diode assist in holding the device in saturation by diverting excess current into the collector once the collector-emitter voltage has reached the saturation limit value.
Patent DE-2523716-A1 (DE)
Title: Automatic pistol combined breech block mechanism - has firing mechanism acting simultaneously as breech block actuator
Inventor: LUDWIG WALTER
IPC: F41A7/02
Filed: 1975-05-28
Abstract: The automatic pistol with firing mechanism releasing arrangement within the pistol handle has covered breech block holder for keeping the block in its rear position. The design of the breech block and the firing mechanism is simplified so that the functions of these elements are carried out by a single element. The releasing lever (8) is used simultaneously for the actuation of the breech block holder (1). The rotating breech block holder is pushed downward for releasing the breech block after cartridge has been fired, by means of an inclined face (7) on the lever (6) on the holder (1). A pin (15), guided in a slot (16) and pivoted on a lever (14) exerts pushing pressure on the inclined face. The breech block can be held in the rear position also without magazine or with loaded magazine.
Patent DE-2526443-A1 (DE)
Title: Overvoltage arrester socket with insulating base - has crown-shaped contact springs and base slots for possible combination of units
Inventor: SCHMIDT GUENTER
IPC: H01T4/06
Filed: 1975-06-13
Abstract: The socket is intended primarily for push-button operated overvoltage arresters (14) and has an insulating base part (1), closed by an insulating plate (2) with moulded fastening element (6) and recess (7). The sprung contacts (3,16) have crown members (12), engaging contact bores (13) of the arrester. The earthing side has a through slot (18) in the base part, enabling the use of the socket individually or in a series connection on an earthing rail (19), onto which several sockets can be inserted. The contact springs are preferably in mutual contact due to their spring pressure and enable inserting of a stripped connecting wire or the earthing rail.
Patent DE-2529265-A1 (DE)
Title: Surface and well water treatment plant - in which water is recycled from filter and aeration columns to storage tank
Inventor: KLEIN HANS-ULRICH ING GRAD
IPC: E03B3/40
Filed: 1975-07-01
Abstract: A water treatment plant is used to process surface or well water for drinking or other domestic and industrial uses. The water is filtered mechanically and aerated in several columns, combined with a sludge pit, and is then recirculated through a storage tank. During recirculation flocculants, activated carbon, ozone and/or disinfectants can be added to the water. This system can deal with a high peak influx of crude water for brief periods and convert it with a minimum of effort to purified water.
Patent DE-2534222-A1 (DE)
Title: Dog excrement pickup box - has one open side with carrying-bracket and has upward-pointing rim for suspending shovel which closes box
Inventor: LORENZ HANS
IPC: A23F3/36
Filed: 1975-07-31
Abstract: The box (1) is open at one side to which is fixed a carrying bracket (2). A shovel which closes the open side of the box (1) is fixed to an upward-pointing rim (3) on the top edge of the box and to a cross-piece (4) fixed to the carrying bracket (2). The two top corners of the shovel-blade are curved so that the shovel can be pushed over the upward-pointing edge (3) of the box. A nail on the shovel handle has a projecting-head which catches against the cross-piece (4). The shovel has its blade slightly narrower than the interior of the box (1) enabling the box to be easily emptied with the aid of the shovel.
Patent DE-2535609-A1 (DE)
Title: External rotor motor for operation in aggressive media - has bushing in one piece with squirrel cage penetrating stator winding and surrounded by insulator
Inventor: PAPST GEORG
IPC: H02K11/25
Filed: 1975-07-26
Abstract: The motor is intended for driving a large diameter, but short axial length extractor fan. It has a suspended external rotor whose bottom connecting it to the shaft is closed, and made in one piece with the squirrel cage. The assembly is integrally cast with a bushing for its fastening on the shaft. In order to achieve short motor length, the bushing (6) projects into the stator winding (23-25) where an insulating element (21) surrounds the bushing upper part with a clearance. Preferably the air gap (55) between the insulator and the bushing is in the form of a cone envelope.
Patent DE-2536761-A1 (DE)
Title: Buoyancy control for underwater survey equipment - with external coil pipe with piston and ballast fluid
Inventor: SVERTSCHKOV JURIJ S
IPC: B63G8/22
Filed: 1975-08-19
Abstract: The underwater survey equipment is fitted with a buoyancy tank which is of rigid material and with a fixed volume. A special coil is fitted around the tank, open at one end and linked to a pumping port with the other end. The pipe is connected to a reservoir, on board the ship, by a line and a pump. A movable piston in the coil separates the ballast fluid from the seawater. The system enables a rigid tank to be used, with the size of the coil selected to provide the required amount of buoyancy. The tank therefore has a long life.
Patent DE-2544427-A1 (DE)
Title: Failsafe binary storage element - uses blocking oscillator to produce zero output if any element fails
Inventor: LOTZ ALFRED ING GRAD
IPC: H03K19/007
Filed: 1975-10-02
Abstract: A failsafe binary storage element uses alternating voltage inputs and alternating voltage output derived from a blocking oscillator whose operation depends on the bit stored. Any circuit element failure produces a zero state output regardless of input. The circuit consists of a transistor blocking oscillator, incorporating a feedback transformer and output buffer transistor. To one of two input transformers an alternating SET voltage may be applied. This produces a direct voltage on a capacitance, through a rectifier, and the blocking oscillator starts to run, supplying its own internal direct voltage via a feedback transformer and rectifier attached to the output stage. An alternating voltage applied to the RESET input has the effect of stopping the oscillator, and thus storing a zero bit.
Patent DE-2547587-A1 (DE)
Title: Modular multiway terminal block - clips to control panel struts and has plastic body with integrated clips extending along ends
Inventor: GRALLATH KARL
IPC: H01R13/518
Filed: 1975-10-24
Abstract: The multiway plug and socket blocks are mounted in rows and columns on frames in control panels with large cable looms. They are made as standard size modules which clip on to horizontal and vertical frame members and have rows of socket holes for contacts. The block has a plastic housing with a pair of clips at one end. The clips bend outwards to hook around the supporting strut orthogonal to the longit axis of the block. The support strut can have a single or double T corss section, or a C shaped cross section.
Patent DE-2548440-A1 (DE)
Title: Continuous turbidity measurements - in gasified bacterial culture liquors by continuous withdrawal of sample stream for spectro-photometric analysis
Inventor: LEHMANN HEINRICH
IPC: C12M1/34
Filed: 1975-10-29
Abstract: In a system for the continuous measurement of the turbidity of sterile bacterial cultures contained in a fermentation vessel, by means of a photometer, a pump constantly draw draws off a liq. fraction contg. bacterial cultures from the fermenter and returns it in closed circuit thereto via sample vessels in the photometer. A gas bubble separator is incorporated in the connecting pipe between the pump and the fermenter. Advantageously, the pump also returns the fraction from the gas bubble separator contg. the sepd. gas bubbles directly to the fermenter. Fouling of the measuring cells by bacterial growth is eliminated, the thickness of the measured layer can be increased when the turbidity increases and interference by gas bubbles is prevented.
Patent DE-2548997-A1 (DE)
Title: Two:part cubical mould for test specimens of concrete - has its four sides joined together but uses loose bottom
Inventor: BAHR EKARD
IPC: B28B7/00
Filed: 1975-11-03
Abstract: The two-piece mould, of plastic, aluminum or cast steel, has sides made in one piece with a separate, loose bottom. The sides may be straight, or they may have an inward flange at one end to take the loose bottom. The bottom (11) lie on a stepped flange, or it may (as illustrated) be held by bolts passing through a plain flange; or bolts may be used without a flange. The loose bottom is used to push the finished specimen out of the mould, and to give good access for cleaning it.
Patent DE-2551728-A1 (DE)
Inventor: GASPERT BRANKO DR ING
IPC: A61K31/19
Filed: 1975-11-18
Abstract: The novel process for the preparation of  alpha -amino-1-adamantylacetic acid, of the formula <IMAGE> gives a pure product in high yield. It consists in converting monoethyl 1-adamantylmalonate, which has been obtained by partial hydrolysis of diethyl 1-adamantylmalonate, with thionyl chloride to give ethyl 1-adamantylmalonate monochloride, which is reacted with gaseous ammonia to give ethyl  alpha -carboxamido-1-adamantylacetate, from which  alpha -amino-1-adamantylacetic acid is obtained using sodium hypochlorite.
Patent DE-2556260-A1 (DE)
Title: Neutral complex ligands - forming stable complexes with metal and/or inorganic or organic ammonium salts
Inventor: VOEGTLE FRITZ DR
IPC: C07D235/06
Filed: 1975-12-13
Abstract: New neutral complex ligands have formula A(B)k (I), (where A is -CH2-, -(CH2)2-, -(CH2)3-, Ar or Het. Ar is a di-, tri-, tetra-, penta- or hexa-valent benzene nucleus, opt. substd. 1-4x by  6C alkyl or alkenyl. Het is a divalent heterocycle. k is 2, and alos 3, 4, 5 or 6 when A = Ar. B is -((CH2)n-Y)-m (CH2)p-X-R1. When A is 2,6-pyridinediyl, the 2 B gps. together are also 3,4,12,13-dibenzo-2,3,8,11,14-pentaoxa-3,12-pentadecadiene-1,15-d- iyl. Y is O, S, NR2, o-phenylene or Het. X is O, S or NR3. R1 if H, 4C alkyl or a mono-or poly-cyclic heterocyclic gp. opt. substd. by one or more 6C alkyl or alkenyl, and bonded via a C-atom in spatial proximity to >=1 heteroatom. R2 is R3 or -((CH2)n-Y1)-m-(CH2)p-X-R1. R3 is H or 6C alkyl. Y1 is O, S, NR3, o-phenylene or Het. n and p are opt. same and are 0 or integer 1-3. m = 0 or integer 1-10. p is not = 0 when Y is O, S or NR2. Recurring symbols Het, B, X, Y, Y1, R1, R2, R3, m, n and/or p may be different. If A is opt. substd. Ph, it may be bonded to a polymeric carrier. (I) form stable complexes with metal- and/or inorganic or organic ammonium salts, and form organic solvent-soluble crystalline complexes with alkali and alkali(ne earth) metal salts. (I) are used for sepg. ionic cpds., esp. salts, from their solns. Complexes of (I) with metal- and ammonium salts are used for carrying out reactions of ionic cpds. with other cpds. in esp. nonpolar solvents, in which the non-complexed ionic cpds. are difficultly soluble.
Patent DE-2604299-A1 (DE)
Title: Reinforcement of (non)metallic materials - by adding needle-shaped bodies in undefined quantities to base material during prodn.
Inventor: JESSEN JOERN JAN
IPC: C22C47/02
Filed: 1976-02-02
Abstract: Prodn. of reinforced sintered metals, cermets, porcelain, earthenware, glass, and other materials in which reinforcing effects as well as e.g. increase in thermal conductivity are obtd. comprises adding to a base material (mixt) in a liq. pasty, powder or molten form etc. an unlimited wt. proportion of approx. needle-shaped reinforcing bodies of which the dia.:length ratio is over 1:2 but is otherwise unlimited w.r.t. material shape or quality. Materials of improved mechanical properties and thermal conductivity are obtd.
Patent DE-2605836-A1 (DE)
Title: Very high loading concrete for nuclear power structures or similar - with additional reinforcement by high yield strength rigid steel cables
IPC: E04C5/02
Filed: 1976-02-13
Abstract: In addition to conventionally dimensioned reinforcement for normal loads, an additional reinforcing system of cable-type steel elements of high yield strength and rigidity is mounted in the structure. At both ends these cable elements have anchoring units capable of conducting virtually the whole of their fracture force into concrete. Dimensions are such that, in conjunction with the enveloping concrete, they can absorb the energy of the short-term very high load within their overall spatial effectiveness. The cable inlays comprise elements normally used in stressed concrete construction, together with their anchor units and couplings, and they may form a network. Both types of reinforcement may be cast in the concrete. Arrangement allows the construction to absorb very high, short duration impacts; such as crashing aircraft.
Patent DE-2612675-A1 (DE)
Title: Heating system burner for firing used oil - has pressure vessels for oil supply and atomising without pump
Inventor: HEINEN GUENTHER
IPC: F23K5/02
Filed: 1976-03-25
Abstract: The heating system burning used oil feeds burner without pumps. The metal debris in the old oil tends to wear out pumps excessively due to presence of metal debris, so the oil pressurised for atomisation in the burners by compressed air. Oil is supplied at the atomisation pressure by pipes (29) to burner. This pipeline is connected to two large pressure vessels (17, 18). The oil is fed into the vessel arrangement by gravity from a storage tank (2). An automatic valve system ensures alternating charging of the pressure vessels with oil and compressed air. The two pressure vessels operate with alternating cycles for supplying the oil under pressure continuously to the burner.
Patent DE-2613710-A1 (DE)
Title: Clamping chuck with collet for end mills - has clamping ring for gripping cutter shank with collet at both ends
Inventor: SCHNEIDER BERTHOLD
IPC: B23B31/20
Filed: 1976-03-31
Abstract: The clamping chuck for end molls has chuck body with centre, clamping collar and threaded ring. The chuck ensures reliable clamping over the smooth part of the end milling cutter shank. It also ensures good concentricity of rotation. The clamping collar (2) has internal cone (2a) for the external (3a) of the collet (3). the latter has on its upper end another external cone (3b). The threaded ring (4) with inner cone (4a) rests on the upper end of the collet so that the milling cutter shank is gripped by collet upper and lower end securely. The clamping collar has also an external conical centering face (2c).
Patent DE-2614655-A1 (DE)
Title: Stud welding appts. using capacitor discharge - where bank of capacitors is located in the welding gun
Inventor: LINDNER KARL DIPL ING
IPC: B23K9/20
Filed: 1976-04-05
Abstract: Capacitor discharge stud welding appts. has a bank of capacitors built into the welding gun, and is provided with a control and charging device. The capacitor bank uses a charging voltage of 50-100, (esp. 75) volts. At least one foot or peg is pref. used as an electric contact on the workpiece, esp. three wear-resisting contacts. A fourth foot or peg may be used as a spring-loaded sensor which switches on the charging current when the sensor touches the workpiece. The welding studs pref. have a conical tip forming an angle of 15-40 degrees, esp. 20-30 degrees with a plane which is at 90 degrees to the axis of the stud. Alternatively, the stud end may be parabolic. The air gap between the stud end and the workpiece is pref. 1-6, esp. 1-3 mm. In conventional stud welding plant, the capacitors are not located in the gun, and heavy cables must be used between the capacitors and the gun. Losses occur and so the voltage is above the max. of 100 V allowed. The invention eliminates these problems and produces a sharp peak in current w.r.t. time.
Patent DE-2617522-A1 (DE)
Title: Hand grinding tool with holder - has holder in form of long shaft of same width as grinding belt and fitted with tensioning element
Inventor: HEINOLD HANS
IPC: B24D15/02
Filed: 1976-04-22
Abstract: A hand grinding tool is for surfaces, edges etc. There is a holder, with a grip, for the grinding mechanism, such as the grinding belt. The holder is in the form of a long shaft (1) of roughly grinding belt width. At the end (2) away from the grip is a tensioning element (3). There is an externally accessible through-slot (5) for at least one endless grinding belt (6) in the region of the grip shoulder (4). One of the faces (7) which guides the grinding belt (6) is provided with friction-increasing mechanisms. The through slot (5) for the grinding belt (6) passes into an introduction slot (9) which grips the handle (8) in the longitudinal direction.
Patent DE-2622461-A1 (DE)
Title: Reverse osmosis system - having separate pressurisation and recirculating pumps
Inventor: EISELEIN BERND J
IPC: B01D61/02
Filed: 1976-05-20
Abstract: In a reverse osmosis processs the liq. to be treated is first raised to the working press. and then introduced into a closed circuit contg. a membrane appts. The soln. is recirculated around the closed circuit until a predetermined concn. is reaches, and the conc. is removed either continuously or intermittently from a point in the closed circuit. Process is of the type in which the working press. exceeds the osmotic press. of the soln. to be treated so that a component of the soln. is partly given up by permeation of a membrane. Pressurisation and recirculation are carried out by separate pumps. The pumps used are therefore simpler and more reliable than a single pump carrying out both functions. The press. of the system and the velocities within it can each be varied independently.
Patent DE-2622514-A1 (DE)
Title: Roller guide rail for drawers of cabinets etc. - has slot to limit roller travel to half of drawer movement
Inventor: GRASS ALFRED
IPC: A47B88/14
Filed: 1976-05-20
Abstract: In order to support a drawer in a cabinet a guide rail (3) is rigidly fixed to the inside wall of the cabinet. The rail has a slot in the vertical plane with a base (10) which forms a track for the roller (15). The guide rail (3) fits in a slot (13) cut in the side of the drawer (3). The roller (15) presses against the upper surface of the slot (13). The drawer has additional support from a second roller (5). When the drawer is pulled in the direction of the arrow (17) the travel of the roller (15) is limited by a slot (12) in the horizontal plane. The spindle (9) of the roller (15) slides in the slot so that the travel of the roller (15) is limited to half the movement of the drawer.
Patent DE-2624625-A1 (DE)
Title: Tool layout for forming pipe elbows of thermoplastics - includes mandrel formed by thin metal or plastics blades
Inventor: PATZNER ALFRED
IPC: B21D9/01
Filed: 1976-06-02
Abstract: Pipe elbows of thermoplastic material are obtd. by heating a straight tube to the temp. at which is can most easily be deformed, introducing a mandrel and bending the tube round a former. The mandrel consists of a number of blades which slide relatively to each other, and the fixture for bending the heated pipe has a fixed curved piece against which the pipe is pulled by a lever, the radius of which corresponds to the required curve of the pipe. Method is quicker, simpler, cheaper than filling with sand, low temp. melting metal, or using metal, formers, spiral coils, etc.
Patent DE-2627895-A1 (DE)
Title: Semiconductor device for high power consumption formed in resin - has electrode substrate with cut out with conducting copper leads soldered to element
Inventor: YASUKAWA AKIO
IPC: H01L23/488
Filed: 1976-06-22
Abstract: Semiconductor device formed in a resin, has a relatively large power consumption. It consists of an electrode substrate (8) made from copper or similar material with a high coefficient of thermal conductivity. There is a cut-out (9) in the top surface of the electrode substrate. The cut-out contains both a semi-conductor element (11) made from silicon or similar material and coupled to the electrode substrate by solder (10). There are also a number of conducting wires (13) made from copper which are soldered to the semi-conductor element (11). Part of the conducting wires and the semi-conductor element in the cut-out are embedded in the synthetic resin so that the horizontal thermal expansion of the synthetic resin is limited by the side walls of the cut-out.
Patent DE-2631081-A1 (DE)
Title: Omnidirectional or directional antenna array - radiates circularly polarised and horizontally or vertically polarised waves simultaneously from directional radiators
Inventor: THOMANEK LEONHARD ING GRAD
IPC: H01Q21/20
Filed: 1976-07-09
Abstract: The omnidirectional or directional antenna array is constructed from directional radiators and radiates circularly polarised waves at a first frequency and vertically and/or horizontally polarised waves at a second frequency at the same time as the circularly polarised waves and from the same dipoles. The feed lines to the vertical and/or horizontal dipoles are connected to the outputs of filter couplers. The transmitter for circular polarisation and that for vertical and/or horizontal polarisation are connected via these couplers to the horizontal and vertical dipoles.
Patent DE-2632819-A1 (DE)
Title: Fully automatic conveying and stacking plant - for chill cast ingot dropping out of moulds mounted on a moving casting belt
Inventor: WEIDMANN HANS
IPC: B22D5/00
Filed: 1975-07-23
Abstract: Plant for stacking chill cast ingots made on a casting belt contains a row of moulds. The ingots drop out of the moulds onto a conveyor belt, and travel along the belt to an ejector which pushes each ingot down a chute to a manipulator. The manipulator aligns each ingot so a measuring sensor can indicate any scrap ingots. A trolley running on overhead rails is then employed to pick up each ingot and deposit it on a pallet to form a vertical stack in which the ingots in alternate layers are aligned at 90 degrees to each other so a stable stack is obtd., i.e. the stack does not easily collapse. All operations are fully automatic.