baber/WOPTO huggingface dataset:
Patent DE-2734378-A1 (DE)
Title: AC tripping signal detector for telephone PABX - uses two comparators and capacitor discharge circuit
Inventor: KRAEMER HORST DIPL ING
IPC: H04M7/14
Filed: 1977-07-29
Abstract: The detector, is used for evaluating an AC release signal in PABX telephone exchanges, uses an input RC filter (F) instead of a hold and release relay, a bridge rectifier and an LC filter. A first comparator (VI) compares the AC output of the RC filter with a reference in order to discharge a capacitor in synchronism with the AC release signal frequency (50Hz). A second comparator compares the capacitor voltage with a second reference.
Patent DE-2738959-A1 (DE)
Title: Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input
Inventor: BORE GERHART DR
IPC: G01R31/36
Filed: 1977-08-30
Abstract: The secondary storage battery voltage monitoring unit is provided with commercial type switches that enable the battery to be tested under load by untrained personnel without endangering the battery. Thus, a series circuit consisting of a large capacitor (approx. 10uF) and an optical indicator unit is connected in parallel with the input to the load (consumer). Specif. the optical indicator component is a light-emitting diode or a bulb, and a zener diode is connected in series opposition with the l.e.d. One or more series connected forward-biased diodes are connected in series with the l.e.d. the latter's current being limited by means of a fixed shunt resistor.
Patent DE-2743933-A1 (DE)
Title: Outer wall construction system - secures prefabricated panels by waterproof glue to flat metal back part on upright
Inventor: TAYLOR BASIL CHARLES
IPC: E04F13/08
Filed: 1977-09-29
Abstract: The outer wall construction system is for dwelling house or similar building with a frame of prefabricated panels. A rigid flat metal back parts (8) is fixed to the upright (6) of an outer wall frame, and a set of prefabricated panels (5) with adjacent vertical edges are secured to the back piece by waterproof glue, the edges joining together and forming a waterproof joint. The panels can be secured to the upright by driving fixing devices through them into it. Cover strips (10) can be fitted between adjacent horizontal panel edges, forming the outer edge, and secured to the uprights or panels to the wall frame. The back parts can each comprise a strip of a galvanised iron or steel, protruding past either side of the upright.
Patent DE-2744426-A1 (DE)
Title: Electroless nickel plating of metals, plastics, or ceramics - using periodically replenished bath kept an constant density
Inventor: BEHRENDT ERNST-GEORG
IPC: C23C18/36
Filed: 1977-10-03
Abstract: The bath contains nickel salt, sodium citrate, NH4Cl, NH4OH, sodium hypophosphite, a water-soluble polyhydroxy benzene, and a copper salt, with an initial density of 1.075-1.116 g/cm3, esp. 1.099 g/cm3 which remains at this value during plating. The initial density is pref. achieved by adding Na2SO4 as a dummy salt, and during plating, part of the bath is automatically and periodically removed at short time intervals and replaced by a replenishing soln. (R) and water to keep the density at 1.099. For Ni coating of a metal substrate, the latter is pref. first exposed as a cathode to a voltage of 8-12V for 2-10 seconds. Used e.g. for small or large relay poles made of metal sheet, or for substrates with a complex shape.
Patent DE-2744788-A1 (DE)
Title: Strip-map navigational aid for vehicles - has case containing two-roller cassette and driving mechanism with window and moving graticule system
Inventor: GEBHARDT KURT DIPL KFM DR
IPC: G09B29/10
Filed: 1977-10-05
Abstract: A navigation aid is designed for use in road vehicles. It consists of a strip map with a system for finding points on the map. The strip map is wound on two parallel rollers and has a driving mechanism in a case, and there is a plane viewing window between the rollers. The case (1) has an insertion slot (21) for a cassette containing the rollers and the map. A disconnectable coupling is provided on at least one roller and on teh driving mechanism. Two rules or graticule strips are provided, moving over the window in X and Y directions, the rules are at 90 deg. to each other.
Patent DE-2748928-A1 (DE)
Title: Electronic switching matrix with programmed memory - uses stored binary data to select switched directly and to describe state of switches equipment
Inventor: EBERHARD DIETER
IPC: H03K19/173
Filed: 1977-11-02
Abstract: The electronic switching matrix e.g. a crossbar coupler, uses the binary data stored in a memory, and of length proportional to the number of switches to be selected, to select the switches directly. The values of the individual bits also describe the state of the equipment being switched. Several bits may be combined to provide analog control of a setting component. The arrangement permits a simple matrix to be mass produced and to have its specific. function defined at a latter time.
Patent DE-2750862-A1 (DE)
Title: Coupon forming reply postcard for advertising - is folded along centre-line to form postcard of usual thickness from magazine paper
Inventor: LOESCHMANN HANS
IPC: B42D15/04
Filed: 1977-11-14
Abstract: A reply postcard forming part of advertising literature is usually made from paper weighing 170 grm/sq. metre in order to withstand rough handling. Paper of this thickness is expensive and is unsuitable for inclusion in magazines or newspapers. It is therefore proposed to make a coupon which is twice the size of a standard postcard. When the coupon is cut out of the magazine it is folded along its centre line and the two inner faces, which have been treated with a suitable adhesive, are then stuck together to form a postcard of the usual thickness.
Patent DE-2809595-A1 (DE)
Title: Abrasive material composed of wear-resistant plastics binder - and embedded granules which are coated with softer rubber-elastic substance
Inventor: JARBY SVEN DR
IPC: C09K3/14
Filed: 1978-03-06
Abstract: Abrasive material comprises a binder matrix, e.g. a wear-resistant plastics such as a polyester of PTFE, in which abrasive granules e.g. SiC or an Al-oxide, are embedded. The granules are enveloped in a 'skin' or film of a substance that is softer than the binder. This substance is rubber-elastic. A silicone rubber is suitable. This arrangement facilitates the release of granules as they become blunt and less efficient.
Patent DE-2812456-A1 (DE)
Title: Reclining three-sectioned garden bed - is convertible into chair by ratchet system and joined rear sections
Inventor: LEONHART XAVER
IPC: A47C13/00
Filed: 1978-03-22
Abstract: The middle and rear parts of the garden bed or chair are divided into two sections (15, 16). The newly formed ends of the side arms are held together by upwardly facing U-section rails(18) with one end attached by hinges(17) to the arm about a hand's width from the end. The other end projects beyond the end of the arm(16) and is firmly connected to it. The ratchets(26) by means of which the inclined backrest can be adjusted are attached to a separate frame (28) which reaches up to the inner end of the front bed surface(8) and is connected at the rear end(27) to the foundation frame. This ensures the seat provides a head rest even for very tall people.
Patent DE-2813823-A1 (DE)
Title: Electromagnetic relay with contact springs - which are divided by slot in two parts, one fixed in case and other movable, carrying contact
Inventor: DAMMERT WOLFGANG ING GRAD
IPC: H01H50/26
Filed: 1978-03-31
Abstract: The relay has a magnetic system and sets of change-over contact springs, consisting of a fixed middle contact and movable springs with ends clamped in the case, while their other ends are fixed in holes in the case. A strip bent by the armature serves as a resetting element for the armature and contacts. Contact springs (6, 7) are divided by a slot in two strips (6", 7", 6''', 7'''/ one of which (6", 7") is fastened in the case (1) and the other (6''', 7''') is free and carries the contacts (11). It rests with a pressure on a pin (5) operated by the armature, and holds it in its rest state.
Patent DE-2819188-A1 (DE)
Title: Drawing board scale holder - has longitudinal ribs of trapezoidal cross section to fit into slots in scale plates
Inventor: EDER HANS
IPC: B43L7/00
Filed: 1978-05-02
Abstract: The scale holder for the drawing head of a drawing board has a disc fastened to the rotating elements of the head, and two integral scale supports aligned at right angles to each other. The supports fit into scale lugs screwed to the scales themselves. The profiling is formed as longitudinal ribs, pressed out of the flat material of the scale supports (4, 5). The ribs are of trapezoidal cross section. Two ribs (6b, c, 7b, c) are formed aligned behind each other on one side, with a further rib (6a, 7a) located on the other side of each support. The longitudinal axis of the ribs on both sides extend at opposite small angles to the longitudinal axis of their own support.
Patent DE-2821915-A1 (DE)
Title: Loudspeaker housing with grille cover - has edges bent backwards at 90 degrees to grille with metal clips at corners
Inventor: SCHRAML REINHOLD
IPC: H04R1/02
Filed: 1978-05-18
Abstract: The edges of a rectangular grille (4) for loudspeaker housings are bent backwards at right angles to the grille. Metal clips (5) are pressed onto the grille at the corners and, if required, along its sides. These stiffen the cover but also have a fastening device (9) on one surface which mates iwth a similar device on the front of the loudspeaker housing. The fastening device may consist of "press-and-fasten" plastics strip, which is cheap readily available, and can be mounted by adhesives. The system is easily produced and the grille can be removed and replaced by unskilled persons.
Patent DE-2824074-A1 (DE)
Title: Hydraulically operated pipe bending tool - has plunger operated by closed circuit fluid pressure increase following manual valve closure
Inventor: BELOTTI GIOVANNI
IPC: B21D7/06
Filed: 1978-06-01
Abstract: The tool has a supporting piece (1) with abutments (2, 2') for the pipe to be bent. The supporting piece is attached to the control assembly fitted inside a handle (4) with valve operating lever (13). The lower end of the handle has pressurised fluid connections (11, 9) connected by supply and recirculation hoses to a pump unit mounted on top of an open fluid tank. The fluid is in constant circulation between the pump unit and the tool, while the normal position of the lever (13) allows unrestricted circulation across the spring loaded valve (15). By pressing the lever the valve closes, and the fluid pressure increase in the supply connection.
Patent DE-2828567-A1 (DE)
Title: District heating leakage detection system - uses central computer to sum water volume alterations caused by heating and heat dissipation
Inventor: BRUNS PAUL-HEINZ
IPC: F17D5/02
Filed: 1978-06-29
Abstract: The system detects leakage in a district heating system where make-up water is delivered via a pressure storage system preceded by an expansion vessel. Volume alterations caused by heating of the water and heat dissipation from it are measured and summed, any variation from zero indicating the amount of leakage. There can be temp. and flow measuring devices (23-38) in the supply (13) and return (14) pipes, connected to a central computer via a remote processing unit.
Patent DE-2832563-A1 (DE)
Title: Foot pedal control for electronic musical instrument - enables selection of register by use of light source and photodetectors
Inventor: ALIPRANDI LUCIO M
IPC: G10G1/00
Filed: 1978-07-25
Abstract: The electronic musical instrument with a number of registers and/or register combinations, has a foot operated control for selecting the register in which the music is played. This foot control includes a light source (2) and a number of photo-detectros (F1-F4) for providing a train of control signals. A curved screen (5) lies between the source (2) and the photodetectors (F1-F4) and is provided with code perforations, the screen moved into a given position, to select the required code group, by depressing a foot plate. Pref. the photodetectors (F1-F4) are coupled to an information conversion circuit (BCD1, BCD2) providing coded signals for a control gating matrix (G2-G11).
Patent DE-2833345-A1 (DE)
Title: Tunnel tubbing joint sealing profile ring - has internal ribs meeting in continuous flat form, on complementary different sections
Inventor: GLANG SIEGFRIED
IPC: E21D11/38
Filed: 1978-07-29
Abstract: The rectangular rubber sealing unit is used with tubbing units with a cutout running round them, assembled into a tubular tunnel so as to be mutually fixed in the abutting flanges axial to the tunnel and mutually movable in the ring flanges. The sealing profile ring is made up from two analogue profile pieces of different cross-section, interconnected at the corners. The profile ribs on the inside of the ring meet so as to form continuous flat ribs in the rectangle, while corner connection has a continuous transition between the profile configurations. Corner pieces may be injected onto profile ends in an angular hollow form. Where tunnels are subject to earth settlement, this permits tubbing joint movement only in the permissible direction.
Patent DE-2838629-A1 (DE)
Title: Loop current interruption system for subscriber circuits - uses clock pulse generator to drive relay, via flip=flop and counter, which opens line contact to break loop current
Inventor: RITZ HERMANN DIPL PHYS
IPC: H04M1/53
Filed: 1978-09-05
Abstract: The interruption circuit comprises a timer switch (ZSE) which controls a normally-closed contact (f) in the 'b' leg of the station circuit (SS). The control unit consists of a clock-pulse generator (TG) incorporating a frequency standard, which is connected to a counter (Z). When a start button (T) is operated, te counter runs for a certain time. The counter has a number of outputs which can be connected to a gate (G). A flip-flop is set on the first count pulse and its amplified output (v) activates a relay (F) which then opens the line contact (f) to break the loop current. When the required count is reached, the flip-flop is reset and the relay drops out. The loop current is restored. If the subscriber station is fitted with a digital frequency oscillator for multiple-frequency dialling (TG') the clock-pulse generator is not required.
Patent DE-2838744-A1 (DE)
Title: Container closure band receiving structure - consists of slot with widened part allowing band insertion around projecting holding tongue
Inventor: HOFE DIETER VOM
IPC: B65D25/28
Filed: 1978-09-06
Abstract: The insert connection is for a band in a fixture slot in a container or its cover. A projecting retention tongue (5) holds the band against withdrawal forces. The slot (2) itself is of chamber-like construction and provides a lateral guide for the wire band. On its wall (8) opposite to the retention tongue (5) the slot has a widened part (9) which allows the band to be inserted around the tongue (5).
Patent DE-2847642-A1 (DE)
Title: Screen printed solvent free PVC plastisol contg. blowing agent - gives relief images on substrate after expansion
Inventor: SCHUETZ ALFRED DR PHIL
IPC: C09D11/03
Filed: 1978-11-02
Abstract: Solvent-free PVC plastisols contg a blowing agent are used as inks for screen printing. A pref. ink comprises (by wt.) 50-70 pts. PVC, 50-30 pts. plasticiser, 0.5-10 pts. pigment or filler, 0.5-2 pts. heat decomposable blowing agent and 0.5-2 pts.wt. stabiliser and kicker. Suitable plasticisers are e.g. phthalic acid esters with 6-10C alcohols such as benzyl alcohol. The blowing agent is e.g. AIBN, dinitrosopentamethylenetetramine or terephthalic acid axide. The pigment or filler is e.g. CaCO3, TiO2 or Fe2O3, the stabiliser used is e.g. Ba/Cd/Zn/Ca soaps, such as the stearate or octoate. Typical kickers are Zn octoate and Ca or Zn stearate. The inks are applied to paper by screen printing and heated to expand the blowing agent and thus to form a relief image on the paper. The inks do not dry on the screen and cause no atmospheric pollution due to the absence of solvents.
Patent DE-2850824-A1 (DE)
Title: Copolymer having glycolide and tri:methylene carbonate units - useful in mfr. of surgical repair articles, e.g. sutures and ligatures
Inventor: ROSENSAFT MICHAEL NORMAN
IPC: C08G63/64
Filed: 1978-11-23
Abstract: A copolymer having units of formulae -O-CH2-O-CH2-CO-(I) and -O-CH2-CH2-CH2-O-CO- (II) is new. It may be made by copolymerising glycolide and trimethylene carbonate. The copolymer may be formed into articles for the surgical repair or replacement of living tissue, such as sutures and lightures.
Patent DE-2856292-A1 (DE)
Title: Drilling tie for branch pipe - has articulated clamping mechanism with dish sections of same radius as main pipe
Inventor: HAESNER GERT ING GRAD
IPC: F16L41/06
Filed: 1978-12-27
Abstract: The drilling jig is used for coupling a branch pipe to a pressure main, initially guiding the drill bit and then accommodating a stop valve. It has a saddle face fitting at least approx. the curve of the main pipe and has an articulated clamping mechanism on the jig enclosing the main pipe completely. The clamping mechanism (2) comprises a number of dish sections (7) coupled together by hinge pins to form a chain and extending for a considerable distance in the lengthwise direction of the main pipe. Their faces (8) bearing against the pipe are at least approx. of the same radius as its external surface (9).
Patent DE-2902841-A1 (DE)
Inventor: GRUBER ERICH
IPC: F16J15/36
Filed: 1979-01-25
Abstract: The bearing (2) of the bearing arrangement is situated, together with an associated sealing device, in a thin-walled sleeve (1). This sleeve (1) is embedded in an elastic ring (3) which is surrounded by a housing (4). Situated on both sides of the bearing (2), in the sleeve (1), are back-up washers (25, 26) which ensure that the originally set position of the bearing (2) in the sleeve (1) is maintained. This bearing arrangement, which permits wobbling movements of the shaft supported in it, operates reliably even when it is exposed to the effect of a hot medium such as, for example, a hot lye. <IMAGE>
Patent DE-2905762-A1 (DE)
Title: Lens selector for camera - has viewing frame with movable picture frame to determine view angle of scene
Inventor: ROTHLEY HELMUT B
IPC: G03B17/56
Filed: 1979-02-15
Abstract: The lens selecting device for a camera has a rectangular frame (10) of the dimensions of the camera moving along a graduated rule (8) and with a fixed viewing hole (A) in a wall (1) at one end. The user looks through the viewing hole and adjusts the position of the frame until the required scene fills the frame. The required lens size is read off the scale. The equipment is simple to make and use. It provides a rapid determination of the required lens size without having to fit the lens to the camera and view through the viewfinder.
Patent DE-2906257-A1 (DE)
Title: Electromagnetic brake for electrically driven wheel chair - is combined with hand lever controlling power supply, fitted with locating device
Inventor: MEYER WILHELM
IPC: B62B5/04
Filed: 1979-02-19
Abstract: The drive unit for an electrically driven wheelchair includes an electromagnetic brake which operates in the event of a power failure such as when the battery is dead. Onto the drive shaft (27) is secured by a key (28), flanged boss (26) which carries a braking disc (22). This is forced inwards by an armature plate (13) followed by a magnetic block (15) incorporating an actuator coil (29). On the outside is a hand operated lever (14) mounted on a spindle (11) which carries a helical spring (12) for the armature plate. Between the lever and the outer face of the magnetic block is a set of locating balls (18) which fit into recesses in the face. The lever also operates a microswitch to cut off the power supply.
Patent DE-2908049-A1 (DE)
Title: Maximum:density loading of reciprocating cooling tunnel conveyor - by switching its drive when there is given build=up before entrance
Inventor: SCHWEINFURTH HANS DIPL ING
IPC: B65G43/08
Filed: 1979-03-01
Abstract: Arrangement is intended for loading an intermittently operating reciprocating cooling tunnel conveyor, such as used for cooling castings, in such a way that maximum packing density on the available conveyor surface is achieved. The castings reach the tunnel on a transporter one at a time at irregular intervals whilst the tunnel conveyor is at rest, and build up near the entrance to the tunnel. Sensors are arranged a little distance before the entrance and respond to castings being at rest at that point, when they activate the tunnel conveyor.
Patent DE-2913042-A1 (DE)
Title: Automatic finishing of treacle-filled waffles - by transferring and pressing newly sliced top on already filled bottom
Inventor: VERWEY ANTONIUS FRANSICUSSTANI
IPC: A21C15/02
Filed: 1979-03-31
Abstract: Waffles with fillings of various kinds and similar products are produced from a pre-baked article. The under half of the waffle is dosed with the filling and an upper half of a waffle, the bottom of which has been treated already with the filling, in a previous operation, is laid on it. The pre-baked article from which a start is made, is slit by a cutter mechanism into an under half and an over half. The over h alf of a waffle is laid onto an under half which has been dosed with filling two operational steps earlier. A large output can be achieved of an improved waffle. The syrup is distributed uniformly and the crumbling away of the edges of the waffle is prevented. The appearance is improved by the show of syrup round the circumference of the product.
Patent DE-2913743-A1 (DE)
Title: Air cooled vehicle IC engine - has cooling air flow round cylinder staggered to give more even cooling
Inventor: SAMPER RAINER
IPC: F01P1/02
Filed: 1979-04-05
Abstract: The engine has one or more cylinders (10) with external cooling ribs (14). Each cylinder is surrounded by an air flow guide sheet (18) which encloses the ribs and forms channels (22) between them through which cooling air flows tangentially round the cylinder. The sheet is supported off the cylinder by vertical plate springs (19). The sheet has air outlet openings (25, 26) on the discharge side. There is one opening in each of the channels (22) between the ribs and the openings are arranged in two vertical columns. The openings in alternate channels are in different columns. This staggers the air flow and reduces temperature uneveness.
Patent DE-2919682-A1 (DE)
Inventor: SCHNEIDER ALFRED
IPC: F24F13/24
Filed: 1979-05-16
Abstract: This ventilation device, which is accommodated in a housing, serves for aerating and/or deaerating a room. The housing has an inner longitudinal housing wall (3) provided with grating openings (33) as well as an outer longitudinal housing wall (9), in which an outer air passage opening (18) is situated and in front of which a weather-protection profile (6) is arranged. In order to achieve a good heat insulation and noise insulation, the outer longitudinal housing wall (9) is formed by three heat-insulating and noise-insulating layered bodies (9', 9'', 9'''). The outer layered body (9') consists of inherently hard plastic with guides for the central layered body (9''') which is likewise made from inherently hard plastic and which serves as a slider (22) for closing the outer air passage opening (18). The inner layered body (9'') consists of inherently soft plastic and is at the same time the outer delimiting wall of airflow ducts (17', 17'') which extend in the housing, starting from the outer air passage opening (18), to inner air passage openings (19', 19''). <IMAGE>