baber/WOPTO huggingface dataset:
Patent DE-2323292-A1 (DE)
Title: Alkali phosphate prodn from low-calcium solns - obtd by dissolving phosphate ores with acids, and adding sulphate ions
Inventor: LOEBLICH KARL-RICHARD DIPL CHE
IPC: C01B25/30
Filed: 1973-05-09
Abstract: Alkali phosphates having good purity are produced from even strongly contaminated dil. solns. by (a) mixing the soln. with recycled mother liquor from stage (e) and adding a sodium salt to react at least the equiv. stoichiometric concn. w.r.t the fluoride ions adding NH3 to adjust the pH to 4.8-6.5 and sepg. the pptd. mixt. of alkali and alkaline earth fluorides or Na2SiF6 with phosphates of Fe, Al, Mg and other metal ion impurities from the mother liquor; (b) treating the latter with a further portion of a sodium salt so that only Na(NH4)HPO4.4H2O crystallises; out adding ammonium rich soln. contg. Nax(NH4)yH3-(x+y)PO4.nH2O(y>x; x + y >2) recycled from stage (e) followed by enough NH3 to adjust the pH to 7.5-9.2 using a temp. of 40 degrees C; sepg. Na(NH4)HPO4.4H2O from the mother liquor; (c) treating the mother liquor from (b) with NH3 with stirring and cooling to a temp. below 25 degrees C. until pH >9.4 is reached, whereby Nax(NH4)yH3-(x+y)PO4.nH2O crystallises out and is sepd. from the mother liquor, which is returned to stage (b); (d) distilling the phosphate, free mother liquor from stage (c) in presence of lime milk to recover NH3 or to obtain by crystallisation phosphate-free ammonium salts; and (e) reacting the Na(NH4)HPO4.4H2O from (b) with a Na or K cpd. to produce an ammonium-free alkali phosphate. Solns. obtd. by dissolving phosphate ores with HCl or NHO3 opt, with addn. of H2SO4 and treating them with a sulphate, can be processed to produce alkali phosphates.
Patent DE-2329944-A1 (DE)
Title: Flat spiral strip safety device for rotating projectiles - is correctly fitted in the fuse by scanning of a marker
Inventor: LACIS SIGURD
IPC: F42C15/22
Filed: 1973-06-13
Abstract: The flat strip coil spring holds a centrifugal force actuated segment which in turn locks the firing pin in the fuse. The coil spring has a marker which ensures that the coil spring is correctly assembled into the fuse on automatic assembly. This marker consists of a painted, polished, roughened or pickled surface. Only one side of the spring is treated. An insulating layer can be used or a thin film of metal e.g. chromium can be deposited under high.
Patent DE-2340340-A1 (DE)
Title: Rolled metal lengthwise shear - has indexing driver mechanisms mounted direct on shear stands at inlet and outlet
Inventor: ROHDE WOLFGANG
IPC: B23D15/00
Filed: 1973-08-09
Abstract: The shear is partic. for heavy gauge rolled sheet metal, where this is divided after parting off into lengths into parallel strips, the lengths being indexed forward by drivers before and after the shear. The drivers, together with their drive mechanisms and setting devices, are mounted directly on the shear stands on the inlet and outlet sides. Their drive rollers can be mounted symmetrically about the line of cut and near it, and there can be one pair of rollers at the inlet and two at the outlet, in the latter case both sides of the line of cut, the overall width of those on the inlet and outlet sides being the same.
Patent DE-2402508-A1 (DE)
Title: Horizontally opposed two stroke engine - cylinders have catalytic disc divider
Inventor: BOENSCH HELMUT WERNER
IPC: F02B23/00
Filed: 1974-01-19
Abstract: The two cylinders are bolted together near their compression chambers and connected by a disc and the two crankshafts connected by a belt drive. The single spark plug is fitted to the one cylinder close to the separating disc. Transfer ports and exhaust slits are regulated by the piston edges in the usual way. A combustion chamber, divided by the separating disc is formed between the two pistons. The piston draws a rich mixture via the crank pump which passes through the transfer port into the cylinder. The opposite piston simultaneously draws pure air in the same manner, the two charges being kept separate by the disc. The rich mixture is ignited by the high tension spark from the spark plug passes through holes in the disc and mixes with the pure air in the second cylinder to complete the combustion. The separating disc may completely or partly consist of a catalyst or material or be covered with one.
Patent DE-2412153-A1 (DE)
Title: Bobbin winding control system - has a monitor for periodic measurement of feed yarn tension to modify bobbin winding speed
Inventor: HASEGAWA KATSUMI
IPC: B65H59/38
Filed: 1974-03-14
Abstract: The system to control the winding of yarn on to a bobbin uses a tension sensor to give a periodic measurement of the yarn tension to be compared with a pre-set value which is either constant or proportional to the increasing dia. of the bobbin, so that the rotary speed of the bobbin can be controlled throughout the winding operation. The system gives a continuing monitoring action on the yarn without imposing friction which could lead to abrasive damage of the yarn, and without requiring complex mechanical components to register yarn tension.
Patent DE-2431065-A1 (DE)
Title: Cover system for extractor fan or apertures - has pivoted lamellae with stepped static splints acting as closure stops
Inventor: FREUND LOTHAR
IPC: F24F13/15
Filed: 1974-06-28
Abstract: A cover system for openings cut in windows or walls, the openings in which lead to extractor fan devices, has a frame work (23) in which are mounted air through-flow-permitting parallel lamellae (24). The lamellae (24) are pivoted and between two adjacent lamellae (24) is a splint (35) statically mounted, parallel to the lamellae. The splints (35) have stepped sections cut from them which act as closure stops for the parallel lamellae (24). The splints (35) are constructed as integral units with the cover system framework housing (23).
Patent DE-2443249-A1 (DE)
Title: Snap coupling for air pressure line - has male and female parts connectable with one hand
Inventor: ENSMENGER HELMUT
IPC: F16L37/42
Filed: 1974-09-10
Abstract: The snap coupling comprises a hollow male part with a parallel outermost portion followed by an annular shoulder behind which is an annular groove inserted in the female part. The parallel portion of the male part runs in a closely fitting bore in the female part and holds a valve open against the force of a spring. The valve has a transverse port which is only exposed to allow air flow through the coupling when the male and female parts are engaged. The male part is retained by two segments with projections which co-operate with the annular groove in the male part and which can tip about their upper and lower ends to allow engagement and disengagement of the male part. The tipping movement of the two segments is controlled by an arrangement of longitudinal grooves in two co-operating toothed annular parts actuated by force and aft axial movement of a sleeve surrounding the male part.
Patent DE-2451126-A1 (DE)
Title: Delay circuit for a sound the amplifier in film camera - has a voltage divider in the amplifier and is designed to give powroper synchronisation
Inventor: ROTH JOHANN
IPC: G11B31/00
Filed: 1974-10-28
Abstract: The voltage divider (3, 4) consists of a photoresistor (3) and an ordinary resistor (4). There is a device which comprises a light source (8) opposite to the photoresistor, with both enclosed in a light-tight housing (7). There is a switching system (9-12) for turning the light source on and off, and an RC circuit (13, 14, 19) at the switching system input, which is shunted by the capacitor (13); the resistors (14, 19) are connected to a push-button switch carrying the operating potential for the switching system, connected with the pushbutton (15) operating the camera.
Patent DE-2453198-A1 (DE)
Title: Window frame assembly press - has rams acting towards stationary corner piece and stops to force components together
IPC: B25B5/14
Filed: 1974-11-09
Abstract: After planning, the components of the stationary and moving parts of the window frame are temporarily secured together in pairs by clips allowing them to slide in relation to each other, after which the tongues and grooves are formed in them for the corner joins. The pairs are then installed in a frame press, and the stationary frame parts, which are larger, are pressed together to form the frame. In a further press operation the moving frame parts are pressed together by sliding in relation to the main frame, and finally the parts are secured together by nailing in the transverse direction. To bring the stationary frame parts together a stationary corner piece is provided, together with two stationary stop plates, while rams act on the sides opposite the corner piece to force them towards it and the stop plates to force the parts together. Other rams assemble the parts of the moving frame by sliding them in relation to those of the fixed one.
Patent DE-2453916-A1 (DE)
Title: Lattice work bar connection system - has eyes accommodating inserts and with mating profiled end faces (BE140576)
Inventor: BAUR VINZENS MAXIMILIAN
IPC: E04B1/344
Filed: 1974-11-14
Abstract: The eyes (2) on the ends of the individual bars (3) are joined to each other by inserts (4) fitted to them, and by serrations (6) extending in the axial direction. The pitch of the teeth can be such as to allow angular adjustment in steps of 15 deg. The point of intersection of the lengthwise axes of the bars can be clear of the centreline of the insert. There can be teeth or lugs etc. formed inside the eyes, increasing in height towards the rear. Connector may be used for shelf support cover.
Patent DE-2454956-A1 (DE)
Title: Multi-stage piston compressor - has housing containing piston, piston drive, valve controlled stage connections
Inventor: ZLOF DIETER
IPC: F04B39/12
Filed: 1974-11-20
Abstract: Multi-stage stroke piston compressor, for high and very high pressure, with a cylinder housing, a stage piston within it, a drive device for the piston, and valve controlled connecting conduits between consecutive stages of the cylinder housing. The stage piston is moved by a drive unit on its longitudinal centre and is symmetrical to its longitudinal centre in an axial direction. Each of the stages on one side of the longitudinal centre are connected, with the exception of the end stage, with the next higher stages on the other side of the longitudinal centre, and this by means of connecting conduits.
Patent DE-2455292-A1 (DE)
Title: Turbine flowmeter of the dry rotor type - has a sealing plate between the housing base and housing head
Inventor: DEWALD FRITZ
IPC: G01F1/115
Filed: 1974-11-22
Abstract: The plate separates the transmission system in the wet part from the counter in the top dry part. The housing head covers the end face of the housing bottom and the sealing plate outer edge. The sealing plate is held in a bore in the housing bottom which is so deep, that an annular chamber is left under the piston-like sealing plate. A sealing O-ring is placed in this chamber when the head of the housing is screwed down, the sealing ring is suitable compressed, and is pushed into a compartment of heat-resisting plastics having a U-shaped section.
Patent DE-2501356-A1 (DE)
Title: Activated sludge aeration - in sewage treatment by inflated rubber hoses with automatic, closing slits at tank bottom
Inventor: WAGENHUBER WALTER
IPC: C02F3/20
Filed: 1975-01-15
Abstract: An aeration system for activated sludge sewage treatment includes a network of pipes which extend over the whole bottom area of the settling basin. The periphery of the pipes carries air exist slots in uniform distance which can be closed and opened to distribute air bubbles across the area. This is a very simple arrangement to achieve a uniform distribution of the aeration medium in fine bubbles across the whole basin. The slots can be shut automatically when then supply of compressed air ceases so that the aeration system cannot become clogged.
Patent DE-2514404-A1 (DE)
Title: Safety switch espec for electrically operated fuel pumps - pump cannot deliver until engine has reached a predetermined speed
Inventor: BOCK WILLY
IPC: F02M37/08
Filed: 1975-04-02
Abstract: The fuel pump is electrically driven and fed from the vehicle battery via the ignition switch (ZS) and a relay (SE) whose points do not close until the engine speed exceeds a pre-determined revolution speed. The speed can be kept so low that by starter motor speed, the points wil close in order that the pump will commence delivery. The lubricating oil pressure could also be used as a medium to close the safety relay. A rotating part of the engine or gears independent of direction of rotation could also be used to close a mechanical switch.
Patent DE-2514648-A1 (DE)
Title: Composite material worm wheel - has swaged bronze wheel rim mounted on cast iron hub
Inventor: HUMMERICH HELMUT DIPL ING
IPC: B21K1/30
Filed: 1975-04-03
Abstract: To save expensive bronze when producing large diameter worm wheels, the wheel hub (1) is made from cast iron, whilst only the rim (2) is made from bronze. The wheel rim and the hub are then assembled by deforming the rim axially so that radial flanges are formed (14) on either side of the wheel hub (1). In order to improve the fit between rim and hub, the rim is heated to about 400 deg.C whilst the hub is shrunk by cooling. The assembly is done in a spring loaded locating nest (3-7) which ensures that the hub and rim are held in the correct relative axial position when the rim deforming clamping load is applied.
Patent DE-2527868-A1 (DE)
Title: Model boat with hull of hard polyurethane foam - providing stable shape, impact resistance, and self-supporting lightweight structure
Inventor: HILMER DIETER
IPC: A63H23/02
Filed: 1975-06-23
Abstract: Model boat has at least its hull made of hard polyurethane foam which has extremely high impact resistance, and resistance to weathering esp. moisture to maintain stable shape and dimensions. The hull can be easily worked and easily attached e.g. adhered to additional components of other material, e.g. wood, metal etc. Reinforcements in the form of stays, frames, etc. are completely superfluous. The hull can flaot when filled with water, taking care that the foam is porous and extremely light to reduce total wt. to a min. The hull can be easily lacquered or covered with film material or otherwise coated. is resistant to acids and other aggressive media, and is completely self-supporting.
Patent DE-2533296-A1 (DE)
Title: Manually operated powered circular saw - has geared depth adjustment bracket on saw blade protection hood
Inventor: STILTZ ERWIN
IPC: B27B9/00
Filed: 1975-07-25
Abstract: The manually operated power driven circular saw has a combined baseplate and cutting depth adjusting mechanism. The baseplate has a bearing and it carries an automatic guide wedge adjustment. The wedge is carried by a bracket pivoted about the centre point of the saw blade. The wedge is guided accurately at any cutting depth adjustment. The adjusting bracket and the pivoted bracket have teeth. The movement of the adjusting bracket is transmitted to the pivoted bracket by a pair of plastics gear wheels in the protection hood on a common axis. One gear wheel connected to the adjusting bracket is arranged outside the protection hood, the other acting on the bracket within the protection hood.
Patent DE-2535388-A1 (DE)
Title: Movable partition wall elements connection rails - are constructed with open spiral ends for mutual insertion, ane rubber stopper
Inventor: DANESCU SEPTIMIUS
IPC: E04B2/74
Filed: 1975-08-08
Abstract: The connection assembly, for movable elements of a partition wall, involves two or more shaped-section rails (1, 2, 3, 4). These are inserted into each other by means of their ends, which are open and spiral in shape (14). They are fixed in position by friction action, by means of a rubber stopper of variable diameter, or similar pressure unit. It may be possible to set the movable partition wall elements (5, 6, 7, 8) at any desired and freely optional angle relative to each other. The accommodation for the wall elements may be in the form of a flange (15) standing back from an open helically sectioned cylinder.
Patent DE-2535707-A1 (DE)
Title: Automatic fluid pressure switching monitor - has pivoting lever inform of snap-action spring carrying moving contact
Inventor: DUNGS KARL
IPC: H01H35/34
Filed: 1975-08-09
Abstract: The monitor supervises the fluid pressure with respect to preset pressure value lower and upper limits. When the pressure limit is passed, a switching contact is operated. The monitor has a diaphragm dividing its housing into two separate, tightly sealed chambers. It operates against adjustable pressure of a spring pressing through a pin on a lever actuating the contact. The lever carries the moving contact, and is in the form of a snap-action contact spring (15) with two stable end positions between which it can only snap. The free end of the spring carries a contact rivet, round which it has a bishaped recess.
Patent DE-2540945-A1 (DE)
Title: Push-button set for TV and radio receivers - illuminates key depressed and releases others
Inventor: NOLL LUDWIG
IPC: H01H13/02
Filed: 1975-09-13
Abstract: Holes in the cabinet hold and guide push-buttons operating locking projections on a spring loaded locking slide, as in 23 52 230. An illumination device with one or more light sources (10) and light conductors (11) is mounted on the back of the printed circuit. It illuminates the key pressed down through screens operated by the keys. The light-conductor may be replaced by light bulbs, and the key depressed by be illuminated directly or by light reflected from flaps.
Patent DE-2542555-A1 (DE)
Title: Permanent magnet disc brake - has segmental magnets and armature with inner and outer ring of segments attached to steel rings
Inventor: HALLMANN HERMANN
IPC: F16D63/00
Filed: 1975-09-24
Abstract: The brake comprises an inner and outer ring of permanent magnet segments (4, 6) attached to steel rings (3, 7) with corresponding armature segments (5) in the intervening space. There is an air gap between circumferentially adjacent segments. All magnet faces have opposite polarities. The wheel on which the braking effect is to be exerted (14) lies axially on one side of the magnets. The armature segments, which form the brake blocks, are free to move axially and are located in a non-magnetic plate (17). The magnets can be moved circumferentially through 45 deg. with respect to the armature using a lever (1). With the lever in one extreme position the magnetic circuit is closed by the wheel disc (14) which then attracts the armature and braking results from the friction between blocks (5) and the disc.
Patent DE-2542872-A1 (DE)
Title: One piece child proof screw cap for bottle - has tabs at side of cap liftable over stops on bottle neck for unscrewing of cap
Inventor: STAHL OTTO
IPC: B65D50/04
Filed: 1975-09-25
Abstract: The plastic child proof screw cap (1) is in one piece and has an anuular skirt (4) with an internal thread (G). Around its base is a collar (12) separated from the skirt to form and annular space contg. one or more tabs (7) each supported by a tongue (6) off the skirt and free to move. The bottom face (9) of each tab is inclined downwards in the direction of unscrewing. Each tab butts against a corresponding stop (14) on the bottle neck. A vertical face (16) on the stop prevents unscrewing until the tabs are lifted elastically.
Patent DE-2545761-A1 (DE)
Title: Body cavity electroresectoscope for surgical operations - has diathermic loop which is motor powered and with adjustable electrode
Inventor: SCHMIDT THEODOR HANS DR MED
IPC: A61B18/00
Filed: 1975-10-13
Abstract: An electro resectoscope for use in operations involving body cavities, in partic. urethral and bladder operations, has a diathermic loop which has a diathermic electrode mounted in a length adjustable manner within a seal or gasket, and has the diathermic loop bent in a plane which is orientated parallel to the axis of the shaft section (2) of the electroresectoscope. The diathermic loop can be rotated about an axis which runs parallel to the shaft (2) axis by means of an electric motor, the rotational velocity of which can be varied.
Patent DE-2546704-A1 (DE)
Title: Lubricant dispenser with pressure limited pump switch - has electromagnet producing piston oscillations and pump cutout relay
Inventor: MINGORI RENE
IPC: F16N7/38
Filed: 1975-10-17
Abstract: The lubricant dispenser supplies oil from a reservoir below, through a pump (10) and pressure regulator (34) which controls the pump operation. When oil pressure reaches a fixed limit, an electrical contact in the pressure regulator (34) opens, disconnecting a relay in the electrical circuit of the pump. The pump piston (10) has an outlet valve (187) at one end. An electromagnet (12) produces axial oscillations of the piston. The pressure regulator (34) has a lower cutout pressure than a safety valve (32) at the tank outlet. When the electromagnet valve is open, oil flows through to the oil dispenser, which has an air spring for delivering metered quantities of oil.
Patent DE-2551676-A1 (DE)
Title: Printing unit for paper web - has wheeled truck which runs over printing plates and houses web and printing roller
Inventor: DELVO BERND
IPC: B41F17/00
Filed: 1975-11-18
Abstract: The printing unit is for paper web and comprises a truck (1) with wheels (2, 2') running along a track between which are positioned vertically movable printing plates (13). Inside the truck the blank paper web (6, 6a) is fed from a supply roll (5) around the printing roller (4) which presses the paper against the underlying plate. The printed web passes around guide rollers (7) over air driers (11) and through a cutting unit before being stored on a take-up spool (9) driven by a motor (10). The truck has end switches (12) which contact buffers at the end of the track.
Patent DE-2554224-A1 (DE)
Title: Valuable item storage room fire protection - has constant air exhaust with built in smoke and temperature detector
Inventor: KUGEL GUSTAV
IPC: E05G1/10
Filed: 1975-12-03
Abstract: Automatic fire protection system for rooms storing highly valuable documents, computer data, microfilms, etc. The room or safe compartment (1) is provided with one or several exhaust ductings arranged in a ring system fitted with a number of inlet openings (3). The ring system is connected to an exhaust fan or vacuum pump, and the air is discharged into the open by duct (6). A monitoring device consisting of a smoke detector (7) and a temp. detector (8) is fitted into the discharge duct (6) or into the suction duct (4). The wiring of the monitoring device is connected to a control box which according to the relevant signal received from the device triggers off the automatic fire extinguisher gear (10), such as a CO2 installation.
Patent DE-2600583-A1 (DE)
Title: Wooden lamination stack handling equipment - includes modifications to travelling truck, pushers and overhead gripper
Inventor: WEHNER BURKHARD
IPC: B65G67/20
Filed: 1976-01-09
Abstract: The handling system for stacks of wooden laminations cut by a saw, the laminations being intended for use on furniture etc., uses a stacking table for assembly of a set of piles into a rectangular pattern for lifting by an overhead gripping frame, in combination with a wagon travelling to and fro on rails. The method of the main patent is modified in various ways. A row of stacks forming part of the rectangular pattern is shifted from the travelling wagon independently from the remainder, the latter being restrained by e.g. stops. This remaining port is conveyed onwards to the overhead travelling gripping frame. The track and wagon are correspondingly increased in length. The pusher members which push certain stacks sideways are correspondingly altered.