baber/WOPTO huggingface dataset:
Patent DE-2730705-A1 (DE)
Title: Continuous loop film projector - uses fixed roller drive and spring-loaded arm to tension film in back projection unit
Inventor: FREISLEBEN REINHARD
IPC: G03B23/12
Filed: 1977-07-07
Abstract: A continuous loop film projector, in a back projection unit is intended for exhibition stand and advertising purposes. The 35 to 70mm film is feed to provide continuous smooth film transport by using a drive roller and a tensioning roller system. The unit comprises a projection gate (3) with a light source and condenser system (7) on one side and lens (8) on the other. The film is spliced into a loop (1) and transported by a drive wheel (4), pref. sprocketed, over a tensioning arm system (5) and a fixed wheel (6) through the projection gate (3) guides (2). The film picture is projected onto a mirror (9) followed by further mirrors until reaching the integral screen.
Patent DE-2738255-A1 (DE)
Title: Adjustable work table for dental laboratory - has slotted stand and spacer with clamping screws and swivel members
Inventor: FUHRMEISTER WINFRIED
IPC: A61G15/14
Filed: 1977-08-25
Abstract: The table is used esp. in dental laboratories. The table stand has flat support face and can be clamped into a given position after swivelling through a wide angle range. An axially slotted spacer (12) is placed between the stand and working table (13). The table swivels on a shaft (113) held in jaws (112) of a clamp formed by the upper part of the stand. The spacer has also a claping slot with jaws holding a shaft (124) on which swivels a web (132) on the working table underside.
Patent DE-2739132-A1 (DE)
Title: Valve gear for multicylinder ic engine - has rockers operating in desmodromic single camshaft and closed by C-springs linking rockers
Inventor: RENGER UDO DIPL ING
IPC: F01L1/30
Filed: 1977-08-31
Abstract: The valve gear for multi-cylinder IC engines has a single camshaft (7) with separate cams for inlet and exhaust valves, operated desmodromically by rockers (9, 10) mounted, in reversed sequence for successive cylinders, on a spindle (8) parallel to and above the camshaft. Cam followers (15) bear against cams (16) on the side away from the valve concerned. C-shaped torsion springs (21, 22) pre-stressed towards valve closure, link the inlet rocker for one cylinder to the exhaust rocker for the next, and vice versa. The springs lie in a common plane perpendicular to that (6) through the camshaft, rocker spindle axes.
Patent DE-2740665-A1 (DE)
Title: Stamped part stacking mechanism - has centering mandrel vertically reciprocated by hydraulic power cylinder located below conveying level
Inventor: BAREIS ALFRED ING GRAD
IPC: B21D43/22
Filed: 1977-09-09
Abstract: The stacking mandrel is fitted underneath the matrix on the sampling press operated by a hydraulic cylinder unit fitted underneath the level of the conveyor belt. This mandrel (21) consists of a vertical power cylinder unit with stationary piston rod (41) and reciprocating cylinder (40) flanged to a support plate (42). Parallel to the piston rod are column guides (43) to prevent canting of the cylinder. The actual stacking mandrel has a cross section corresponding to the shape of the stamped out opening in the workpiece and has a bushing (44) fitted over the cylinder (40) and is removed by loosening a screw (45). The power cylinder unit is double acting with pressurised medium connections (46) on the bottom of the cylinder and hollow end of the piston rod (41).
Patent DE-2743319-A1 (DE)
Title: Production method for bags with labels - involves track of packing material being folded, divided by cross seams and separated by cuts and including supply system
Inventor: HAGER MICHAEL
IPC: B31B160/10
Filed: 1977-09-27
Abstract: A production method is used for bags with labels. A track of packing material is folded along its length round a folding element during its forward movement. The half hose thus formed is divided at set intervals by cross seams into bags which are then separated by cuts along the cross seams. The production installation (100) includes a device located between the folding element and the cross sealing installation supplying one label for each folding process from a supply roll with a stamp pressing the foremost label against the outside of the half hose with a counter bearing for the stamp gripping into the half hose.
Patent DE-2744341-A1 (DE)
Title: Frame holding circuit boards - has sides clamping spaced boards and having two riveted plates to prevent vibration or acceleration damage
Inventor: SILLMANN VOLKER
IPC: H05K7/14
Filed: 1977-10-01
Abstract: The frame, for holding circuit boards, has the boards located given distances apart between two side walls and fixed to them. The sie walls each consist of two or more plates pref. rivetted together, and are connected to a base plate and/or a cover. The base plate is hollow and is used to hold components that generate large amounts of heat, e.g. power transistors. The power components are mounted on secondary plates fixed to the base. The advantage lies in avoiding damage caused by extrement vibration or acceleration.
Patent DE-2744797-A1 (DE)
Title: Gas generating compsn. - comprises oxidiser and large-particle fuel dispersed in a hydrophilic refractory binder
Inventor: MARION FRANK A
IPC: C06D5/06
Filed: 1977-10-03
Abstract: High temp. gas generator comprises: (a) =20 wt. % of a non-hydrophilic refractory binder providing good green strength (b) >=60 wt.% O2 - liberating oxidiser and (c) 25 wt.% fuel in the form of large particles dispersed throughout the refractory material to provide combustion at localised positions. The refractory softens and fuses at temps  combustion temp. at the localised positions. Pref binder is a clay and pref. fuel is a C fuel. Used in generation of O2, CO, CO2 etc. for a wide variety of uses. Generators have good storage stability and can produce gas at a very high rate. Localised burning prevents extinction by molten salt residues.
Patent DE-2746804-A1 (DE)
Title: Induction circuit for telephone bell electromagnet - has yoke passing through coil and made of thermoplastic synthetic resin contg. evenly distributed ferromagnetic particles
Inventor: GEESE ALBERT
IPC: H01F3/08
Filed: 1977-10-18
Abstract: The induction circuit, for an electromagnet or for the bell of a telephone set, has a magnetic yoke passing through the coil and extending to form a closed magnetic circuit. At least that part (3) of the yoke that passes through the coil is made in one piece from a thermoplastic synthetic resin containing evenly distributed ferromagnetic particles, e.g. iron fillings. This part of the yoke is designed to act as a coil former and is also subjected to a permanent magnetic bias.
Patent DE-2748057-A1 (DE)
Title: Endoscope with remote operated cutting tool - has packing, bellows or magnet to form liq. seal at end of control cable
Inventor: CHIKAMA TOSHIO
IPC: A61B17/32
Filed: 1977-10-26
Abstract: The endoscope carrying a cutting tool (1) at its tip, remotely operated by a cable has a parallel cable (8) attached to an arm (2) which can be swung so as to control the curvature of the support arm for the cutter. This enables its direction to be controlled. At the end of the tube (6) through which the latter cable (8) passes, is a packing (7) to form a liquid tight seal. The outside of the cable is smooth, to ensure the sealing effect. In another design, this part of the cable is enclosed by a cylindrical rubber or plastics covering, or by a bellows sleeve, to give a good seal. In a further design, a cylindrical magnet mounted around the wire forms the seal, using a magnetic fluid.
Patent DE-2749525-A1 (DE)
Title: Wet concrete handling plant - includes filling funnel with bottom opening and attached compressed air blower
IPC: E04G21/04
Filed: 1977-11-04
Abstract: Plant for handling wet concrete includes a filling funnel (2) connected to a conveyor (8) by a bottom opening (6) located in its base (4). There is at least one inlet blower opening to blow in compressed air at the edge of the bottom opening (6). The direction of the compressed air flow at the blower opening is almost parallel to the level of that opening. That edge of the blow-in opening opposite to the blower is inclined towards the interior of the filling funnel.
Patent DE-2750880-A1 (DE)
Title: Self-adhesive plastic tape for sticking loose sheets into books - is made of two coherent halves of adhesive-coated, strip-backed, film
Inventor: FUNCK FRIDERIKE
IPC: C09J7/22
Filed: 1977-11-14
Abstract: The strip has a removable backing, and is a plastics film, whose halves carry an adhesive coating and a separate backing strip. The film halves are sepd. by a groove or fold. The self-adhesive strip is welded to >=1 further similar strips along their grooves. Any pair of thus-bonded strips have their halves covered with adhesive and backing strips on the same side. The backing strips cover the entire width of the self-adhesive strips. Used for sticking loose leaves into books. A leaf can easily be glued into a book with accuracy.
Patent DE-2806091-A1 (DE)
Title: Electronic balance for weighing people - has on=off switch allowing digital display to remain stored for given time after person has stepped off
Inventor: BERG CHRISTOPH DIPL PHYS
IPC: G01G19/46
Filed: 1978-02-14
Abstract: The electronic balance for weighing people, e.g. bathroom scales, is designed so that the person weighing himself can easily read the weight displayed. The balance uses a spring as measuring element coupled by levers to the platform on which the person stands. A switch switches on the electronic circuitry when the person stands on the platform and switches off again a given time after he has stepped off. The digital display therefore remains stored for this given time allowing him to read the scale without having to remain on the balance which can present a difficulty for corpulent people.
Patent DE-2807702-A1 (DE)
Title: Bulk concrete reinforcing rod handling system - has gripping jaw with staggered, pointed, gripping rods in reciprocating feed head
Inventor: EINHAUS ALBERT
IPC: B21D43/00
Filed: 1978-02-23
Abstract: The handling system for quantities of concrete reinforcing rods (3) includes a mechanism for feeding the rods horizontally (14) between two positions. The rods are gripped between the top and bottom surfaces of an open sided slot (2) in a head (1) attached by swinging arms (18) to a carriage (20) travelling in the feed direction (14) on a framework. The slit through the head forms a gripping jaw, and the gripping action is assisted by a set of plungers (11) mounted vertically inside the head. These plungers have conical ends (12) with rounded tips, the included angle of the cones being greater than 90 deg. The lower face of this jaw is flat, with only its front edge sloping upwards with a rounded nose parallel to the rods.
Patent DE-2817745-A1 (DE)
Title: Mobile covering with assembled framework - has hinged connecting pieces with sliding shoes or rollers at base assigned to ground anchors
Inventor: DECHO JOSEF DIPL ING
IPC: E04B1/344
Filed: 1978-04-22
Abstract: A mobile covering forms a hall, shelter or similar. Supporting connectors are placed facing each other to join up roof bams, stringers, stays or similar to form the support frame for the skin of the roof and side walls. Each connector has at least two hinged portions. The base ends of the connectors have glide shoes or rollers to which ground anchors or rails or similar are assigned.
Patent DE-2818502-A1 (DE)
Title: Regulated resistance bridge circuit with stabilised diagonal voltage - has differential operational amplifier controlling gate and source path of FET via RC element
Inventor: JOEHNK KURT ING GRAD
IPC: G01R17/02
Filed: 1978-04-27
Abstract: A regulated resistance bridge circuit produces an output signal only for imbalances occurring more rapidly than the controller can balance out. It employs stabilisation of the bridge diagonal voltage. This enables bridge elements with slow variations with time to be used as indicators. T'e bridge diagonal by an element having a time constant. The voltage is applied to the differential inputs of an operational amplifier whose output controlling the gate-source path of a f.e.t. via an RC element. The transistor is in series with one bridge resistance.
Patent DE-2820147-A1 (DE)
Title: Steplessly variable ratio transmission - comprises one wheel with two rings alternately locked by freewheel mechanism
Inventor: MUELLER LUIS
IPC: F16H3/42
Filed: 1978-05-09
Abstract: The wheels give a steplessly-variable speed ratio, there being two engaging together. One wheel has two rings (3, 4), transmitting the power by a clamp-type freewheel mechanism. These alternately are locked to the shaft (1) and turn freely on it. This allows alteration of the effective number of engagements between the wheels and thus steplessly alters the ratio. The wheel with two rings can have teeth, gaps or rollers in a common pitch circle, their number being the total of those on the two rings.
Patent DE-2830606-A1 (DE)
Title: Noise reduction system for air conditioning fan - comprises sound insulating duct with several internal partitions
Inventor: KIZAOUI JASSIEN DR ING
IPC: F24F13/24
Filed: 1978-07-12
Abstract: The noise reduction system e.g. for a radial fan (4) used in hospitals etc., comprises a sound-insulating duct (1) of selected cross-section along which the air stream is directed. This duct (1) has a number of axially spaced internal partitions (2, 3) each of which is flexible, so that the partitions (2, 3) have a low acoustic resistance. Each two successive partitions (2, 3) are arranged so that together they completely cover the entire internal cross-section of the duct (1) and they are coupled to the latter so as to allow conduction of sound waves between them.
Patent DE-2832554-A1 (DE)
Title: Aluminium cover for car roof rack - consists of upper and lower box section with lower section bolted to rack
Inventor: THONABAUER JOHANN ING GRAD
IPC: B60R9/055
Filed: 1978-07-25
Abstract: The aluminium cover for the roof rack installed on a vehicle has upper and lower sections which are designed to fit over each other to form a closed box. The lower section has four or more holes for securing blocks to clamp to the roof rack cross members. The cover is made from simple aluminium parts. It is designed to provide a high degree of security for the contents and can be locked. A flat profile ensures low aerodynamic drag during fast motoring.
Patent DE-2837136-A1 (DE)
Title: Floor mat for bare-foot use - contains embedded releasable ingredient, e.g. antiseptic, opt. in polymer carrier, pref. PVA or cellulose (deriv.)
Inventor: SCHREMPF WALTER DIPL ING
IPC: A47G27/02
Filed: 1978-08-25
Abstract: Floor covering, pref an open-called plastic foam, for use barefoot, esp as foot-mat in wet rooms, contains a releasably embedded active ingredient, (A), e.g. an antiseptic, deodorant and/or medicinal substance. The spread of foot fungus diseases can be arrested. (A) may be embedded directly or in a carrier. The carrier may be water-soluble or -decomposable, or decomposable and/or volatilising. (A) is released from matting esp by washing out. The floor covering is adjusted to fit its use, as regards moisture, temp. and/or wear and also the solubility of (A). (A) may be water-soluble, and/or may be prepd by decomposing its precursor, esp with water, and/or (A) volatilises.
Patent DE-2838335-A1 (DE)
Title: Bonding carbon-based endoprosthesis components - with a layer of silicon carbide, resistant to compressive and tractive force
Inventor: BRUECKMANN HEINZ DIPL PHYS
IPC: A61F2/00
Filed: 1978-09-02
Abstract: Endoprosthesis components of C-based material are bonded on their contact surfaces, having the final required shape, with a layer of SiC cpd. The article may be treated by the vacuum-pressure method in a liq. Si melt, so that Si and C react to form the bonding layer. Alternatively the surfaces to be joined are coated with a slurry of Si (or Si plus C) powder, the pieces brought together, dried then heated in a reducing atmos. to form the SiC layer. Optimum utilisation of the special characteristics of each material is achieved. The bonds are resistant not only to compressive forced but also (unlike self-locking cones) to tractive force.
Patent DE-2841172-A1 (DE)
Title: Organic multipurpose plating - contg. a binding agent, organic e.g. vegetable or wood material, water, and a mineralising agent, e.g. magnesium chloride
IPC: B32B21/02
Filed: 1978-09-21
Abstract: New organic multipurpose boarding consists of (a) a binding material; (b) vegetable material or agricultural origin and/or wood material of forestry origin and/or similar organic material and/or organic wastes and residues; (c) water; and (d) mineralising agents. The binding agent (component (a)) is pref. portland and/or similar cement, opt in combination with other binding agents. It is pref. used in an amt. such that the ratio of component (a) to component (b) is 31:0.29 to 31:0.51. The boarding or plate is useful for construction purposes. The product is resistant to fire, water, weathering, fungi, insects and chemicals.
Patent DE-2843091-A1 (DE)
Title: PBX with composite console - has separate registers for exchange and internal extensions sides for storing and converting selection data
Inventor: BLASSNIGG KURT
IPC: H04Q3/62
Filed: 1978-09-29
Abstract: The special p.b.x. has the operator's consoles for the telephone exchange side and the internal extensions side combined into one console. The composite console has two registers - one for the exchange and one for the internal business or works part - to store and convert selection information. The two registers convert the selection information - irrespective of whether the input is serial or parallel - into a uniform code signal for further processing and transferring to the other part of the installation.
Patent DE-2846158-A1 (DE)
Title: Frame for pictures or photographs - is made up of separate detachable frame sections meeting at conical, slanting edges
Inventor: SCHWAHN HERMANN
IPC: A47G1/06
Filed: 1978-10-24
Abstract: The frame unit is for displaying pictures and photographs and is of varying size. The frame is made up of various separate frames (1, 2, 3) which are inserted into each other so that they can easily be detached, to form a single frame. The edge surfaces (4, 5, 6, 7) of the separate frames, when fitted together, touch each other at equal slanting angles, and are conical. The back of the inner edges of the separate frames (1, 2, 3) preferably have holes in (8, 9, 10) all round. The frames can be made of wood, metal, plastic or other similar material, and are preferably square in shape, but also can be round or oval.
Patent DE-2846866-A1 (DE)
Inventor: NISHIMURA KATSUO
IPC: G02F1/1333
Filed: 1978-10-27
Abstract: A liquid crystal display cell for use in an electronic timepiece having an analog display of time by time indicating hands combined with a digital display, said liquid crystal display cell being of polygonal profile in plan, with one internal angle of said profile being in the range 180 degrees to 360 degrees.
Patent DE-2850156-A1 (DE)
Title: Urinary passage stone extraction probe - has sliding bush with inflatable sleeve at forward end of catheter tube
Inventor: BERENDES HUBERT
IPC: A61F2/958
Filed: 1978-11-18
Abstract: The probe extracts stones from the urinary passage. It includes a grab at the forward end of a catheter tube acting as a guide for a cable opening and shutting it. At the forward end of the catheter tube (1) there is a close-fitting sliding bush (20), on which an inflatable radially-expanding sleeve (22) is mounted. The bush has a coupling (21) transmitting pulling and thrusting forces and extending to the outer end of the probe. Inside the tube is a cable extending as far as the bush.
Patent DE-2851974-A1 (DE)
Title: Simply-assembled fabricated component - has stiffener with pressed recess containing trapped nut
Inventor: FROHNMEYER PAUL
IPC: F16B37/04
Filed: 1978-12-01
Abstract: A fabricated component (1) consists of a flat panel (2). It incorporates a stiffener (3) attached to it by spot-welds (4). There are several four-sided nuts (6), for the attachment of the components (1) to another part (11). These four-sided nuts are trapped before welding inside recesses formed in the stiffener (3). The recesses are pressed to the shape of the nuts (6), thus preventing them from turning. The assembly of the two components using bolts (12) is thus simplified.
Patent DE-2852308-A1 (DE)
Title: Plastic foam mixing head - with grooves in plunger for circulation of non-reactive fluid between mixing cycles
Inventor: LANG SIEGFRIED
IPC: B29B7/76
Filed: 1978-12-02
Abstract: The mixing chamber of a mixing head for a polyurethane foam moulding process has two inlets and two outlets for the components A and B. The plunger has two diametrically opposed channels to join the respective outlets to the inlets in the circulation cycle. Grooves between these channels extend beyond them and are connected between the mixing cycles to a circuit with a fluid which does not react with the two components. Any possible contact of components due to wear which would lead to hard incrustations and stoppage of the plunger is eliminated.
Patent DE-2855099-A1 (DE)
Title: Alloy cast iron with high resistance to wear and abrasion - contains high percentage of chromium together with nickel and titanium
Inventor: MORGATSCHEV IVAN G
IPC: C22C37/08
Filed: 1978-12-20
Abstract: The iron contains by wt. 3-3.5% C, 0.6-1.5% Si, 0.8-1.5% Mn, 23-27% Cr, 3-3.5% Ni, 0.6-1% Ti, the remainder being iron and impurities. An iron is obtd. with increased resistance to impact abrasion, for use in the mfr. or repair of machine parts such as the teeth on bucket excavators or dredgers; the working surfaces of hammer- or crushing- plant; rock boring tools etc. The machine parts are mostly made or repaired via electroslag remelting of the iron. This type of iron is employed as a low cost replacement for diamond or hard metals.
Patent DE-2901260-A1 (DE)
Title: Tipping mechanism for skip emptying - has platform and frame forming parts of four-part linkage
IPC: B65G65/23
Filed: 1979-01-13
Abstract: The tipping mechanism empties skips, trucks, pallets etc. It has a frame with a fixed tipping axis for a platform accommodating the skip etc and a hydraulic actuator. The platform (1) and the frame (4) form parts of a four-part linkage system. The latter has a driving link (7) pivoting on the actuator (17), an output link (8) on the fixed frame axis (9) and rigidly secured to the platform, and a connecting link (13) between the two. The output link can be at the top end of the platofrm.
Patent DE-2905088-A1 (DE)
Title: Gas reverse flow blocking device - has round membrane on axially guided holder bearing against radiused seat edge
Inventor: RACKWITZ DIETER DIPL CHEM DR
IPC: A62C4/02
Filed: 1979-02-10
Abstract: The safety device prevents reverse gas flow and acts as a flame trap for combustible gas particularly for welding and flame-cutting tips. It comprises a housing with flexible membrane spring-loaded against a seat and a baffle plate weakening any backfiring flame. When reverse gas flow occurs and the pressure difference between the valve inlet and outlet sides becomes less than the opening pressure to which the spring (18) is set a round membrane (16) fixed to holder (10) guided axially in a perforated disc (12) first bears only against the polished and radiused edge of the cone valve seat (9). As the result of the pressure on the small annular surface this prevents reverse leakage of the gas without causing any appreciable pressure drop in the normal flow direction. Any flame from a backfire is weakened by the baffle causing the pressure wave to move the membrane holder towards the seat. The high detonation pressure combined with the matched cone angles of seat and holder and set prestress of the membrane cause the latter to bear rapidly sufficiently long and over a large area against the seat before flames or hot gas can reach it.