baber/WOPTO huggingface dataset:
Patent DE-2618980-A1 (DE)
Title: Electron radiation curable coating compsns. prodn. - based on urethane modified unsatd. polyesters, giving high hardness and flexibility (OE150676)
Inventor: DAIMER WOLFGANG DIPL ING
IPC: C08G18/68
Filed: 1976-04-29
Abstract: Prodn. of electron radiation-curable coating compsns. based on urethane-modified unsatd. polyesters is carried out in several stages, as follows. 1 mole aliphatic, aromatic or cycloaliphatic di-, tri- or tetra-carboxylic acid (Ia) and/or di- or tri-carboxylic acid (Ib) of the formula (HOOC)m-R-COOR1OCOCH2=CH2 (in which m = 2 or 3; R is an aliphatic, aromatic or cycloaliphatic hydrocarbyl gp. R1 is a linear or branched alkyl gp. opt. contg. ether gps. R2 is H or Me) is reacted at 90-150 degrees C with n moles mono-epoxide cpd. (II) contg. no free OH gps. and no polymerisable double bonds, where n is the number of COOH gps. in (I). The sec. OH gps. formed are reacted at 90-120 degrees C with n moles di- and/or tri- and/or tetra-carboxylic anhydride (III) to give a COOH-terminated polyester (IV) with uniform and definite mol. structure and a mol. wt. of 700-3000, pref. 900-2000. >=2 of the COOH gps. of (IV) are reacted at 90-110 degrees C with glycidyl (meth)acrylate (V) in the presence of esterification catalysts and polymsn. inhibitors. The reaction prod. is reacted with 5-90, pref. 10-60 mole-% (w.r.t. the NCO-reactive H atoms present) of an unsatd. monoisocyanate (VI) of the formula CH2=CR1OR2OCONHRNCO and/or CH2=CR1CONHRNCO (in which R is an aromatic, aliphatic or cycloaliphatic gp. R1 is H or Me. R2 is a linear or branched 2-12C hydrocarbyl gp.) to an NCO value of 0 and then opt. dissolved in polymerisable monomer(s). Used for coating metals, glass, ceramic and also heat-sensitive materials, e.g. plastics, wood, rubbers or paper. Cure takes place with a relatively small radiation dose. The coatings have high surface hardness and are very flexible and also have very good resistance to chemicals and weathering. A coating compsn. was prepd. by reacting 146g. adipic acid and 480g. glycidyl tert.-alkanoate at 150 degrees C to acid no. 1-2; reacting with 146g. phthalic anhydride and 192g. trimellitic anhydride at 140-150 degrees C to the theoretical acid no.; reacting with 426g. glycidyl methacrylate at 90-100 degrees C to acid no. below 3; reacting with 352g. (VI) (1 30g. CH2:CMeCOOCH2CH2OH and 222g. isophorone diisocyanate) to NCO number 0; and dissolving in CH2:CHCOOBu-n to a solids content of 80%. The modified polyester contains 2-20 terminal double bonds/1000 mol. wt. units. A 60 mu coating cured with an electron dosage of 3 Mrad had a pendulum hardness of 150 s and an Erichsen indentation of 7.8mm. and withstood boiling acetone for over 180 s.
Patent DE-2619035-A1 (DE)
Title: Screwless connecting terminal for transmission lines - has bridge contact and two springs whose bent ends have recess forming clamping edge
Inventor: HOHORST WOLFGANG DIPL ING
IPC: H01R4/48
Filed: 1976-04-30
Abstract: The screwless connecting terminal system for transmission lines has a bridge contact and at least one spring, which is maintained under tension. The assembly can form with the bridge contact a clamping point for the cable. The clamping spring is fastened to the bridge contact, and it has a clamping part with a recess forming the clamping edge. The clamping spring is inserted into a slot of the bridge contact obliquely to the cable insertion direction. The clamping spring is made from a metal strip which is bent into an irregular 'U' shape, and one arm of the 'U' is slotted.
Patent DE-2624906-A1 (DE)
Title: IC engine silencer unit - has inorganic granulated sound absorbent material around perforated exhaust tube and compressed into silencer housing
Inventor: SCHWABBAUER WERNER DR
IPC: F01N1/24
Filed: 1976-06-03
Abstract: The heat and corrosion resistant sound-absorbing insert for a combustion engine silencer comprises a layer of inorganic material (3) surrounding the perforated tube (1, 4) through which the exhaust passes. The layer consists of solid balls or granules compressed into the silencer housing (5). The layer may consist of ceramic material or aluminium oxide. There may be a layer of metal fibers (2) sandwiched between the sound-absorbent layer (3) and the tube (1, 4).
Patent DE-2632737-A1 (DE)
Title: Continuous composite steel and concrete bridge deck - has longitudinal steel beam spans supporting voided road slabs
Inventor: VLOET ANTOINE VAN DE
IPC: E01D21/00
Filed: 1976-07-21
Abstract: The continuous composite steel beam and concrete bridge deck with local prestressing of the concrete road slab in the intermediate support zones comprises at least two spans of longitudinal steel beams (2) supporting a concrete road slab, and the construction process entails the installation of the beams followed by the placement of a voided road slab (3) in the intermediate support (6, 7) zones. This section of slab is then stressed via longitudinal post-tensioning, and finally the remainder of the deck is placed. The precompression of these slab lengths obtains pre-Stresses throughout the steel beams and of the opposite sign to working stresses.
Patent DE-2634810-A1 (DE)
Title: Roof with heat storage panels - has cavities in ribs and condensing heat carrying fluid
Inventor: LAING NIKOLAUS
IPC: F28D20/02
Filed: 1976-08-03
Abstract: The roof build as a heat storage consists of plates with cavities. Heat is collected by roof underside from room below and stored for releasing during the night. The storage has no pipes. Condensate of a heat transfer fluid is directed to the underside of the heat storage roof. This condensate is fed during the night to the heat storage for evaporation and the evaporated heat carrier is condensed against the upper, outside panel inner face. The roof underside panel has downwards projecting ribs forming cavities for fluid. Separate panel edges are connected by edge connecting overlapping profiles. The ribs may contain capillary active layer (3) and plastics foam (4).
Patent DE-2639299-A1 (DE)
Title: Retractable pen or pencil mechanism - has rotary body with cams acting via intermediate bodies against spring mounted cartridges
Inventor: ESCH ERNST E
IPC: B43K24/06
Filed: 1976-09-01
Abstract: The mechanism is for a pen or pencil with cartridges or leads sliding axially between the writing and rest positions, and supported by springs in the housing. It has a rotary body (6) with one or more control cams (15), on an axis (7) at right angles to that of the pen. The cams act via one or more intermediate bodies (12) against one or more of the cartridges (16), which are spring-mounted (17) in the housing (1). The cams can be situated at the body centre, or to the left and/or right of it, and can be elliptical shape, also having locking lugs (19).
Patent DE-2645919-A1 (DE)
Title: Cracking furnace and condenser cleaning - by air blast through both with fluctuating water pressure to burn out coke deposits
Inventor: NASSER GAMAL EL DIN
IPC: C10G9/16
Filed: 1976-10-12
Abstract: A furnace used in the thermal crcaking of hydrocarbons and the following water-cooled cracked gas condenser are cleaned from coke deposits by burning air in the cracking chambers. The hot air is passed through the condenser and the water pressure in the condenser is raised and lowered several times to deflect the heat exchange surfaces. This causes the coke deposits to spall off and saves the labour to shut down the condenser, strip it and clean it with high-pressure water jets.
Patent DE-2648616-A1 (DE)
Title: Seal for piston rod in housing - has seal rings divided into sectors urged radially inwards by axial pressure on conical sleeve
Inventor: JACHENHOLZ ALBERT
IPC: F16J15/24
Filed: 1976-10-27
Abstract: the seal is for a cylindrical member e.g. a piston rod in a housing and has two seal rings (9, 13), each having a cylindrical interior embracing the rod (3) and a conical exterior (11, 12). The rings abut axially and their exteriors lie on a common conical surface. The rings are embraced by a sleeve (16) having a conical inner face engaging the rings. Each ring is divided into sectors which are urged radially inwards when the sleeve is pressed axially e.g. by screws. The segments of the one ring are angularly off-set from those of the other ring.
Patent DE-2650208-A1 (DE)
Title: Hollow transparent plastics roof tile - has surface incorporating lenses to heat water passing through tile, for heating circuit
Inventor: EHRICH HEINZ DIETER
IPC: F24S23/30
Filed: 1976-11-02
Abstract: The hollow roof tile made of transparent plastics material has a surface made up of rows of convex protuberances which act as lenses to concentrate the heat of the sun onto water underneath for conversion into useful energy. Each tile is made of a size giving four rows of eight lenses, and the hollow interior can be filled with water. Connections are then incorporated for supply and discharge of the water which can be circulated around a suitable circuit.
Patent DE-2652233-A1 (DE)
Title: Train indicator system using axle detectors - has auxiliary circuit to correct false indication due to count errors
Inventor: PECHHOLD EBERHARD DIPL PHYS
IPC: B61L1/16
Filed: 1976-11-16
Abstract: A track indicator circuit for railways has an axle detector at a counting station (ZP1-ZP5) at the start of each track section (GA1-GA4). Coupled between successive detectors is a series of up-down counters (AZ1-AZ4) connected so that pulses from the axle detector at the start of a section of track triggers the respective counter in the forward direction whilst the succeeding detector triggers it in the reverse direction. Ideally, when a train has passed completely through a track section, the corresponding counter will have returned to zero and will give a "track clear" indication. Count errors are corrected by means of an auxiliary circuit (ZS1) which compares the count tally for a section with that of succeeding sections.
Patent DE-2653229-A1 (DE)
Title: Hydrofluoric acid purification - by passage over anion exchange resin in fluoride form
Inventor: VULICH ALEKSANDR ILJITSCH
IPC: B01J41/04
Filed: 1976-11-23
Abstract: Hydrofluoric acid is purified by removal of fluoro-silicic acid and sulphuric by contact with an anion exchange resin in the fluoride form. The exhausted resin is regenerated with an aq. soln. of ammonium fluoride of concentration 2-10% by wt and pH 6-9. The resin contains amino gps. and/or quaternary N gps. and is e.g. a resin prepd. by poly condensation of polyethylene polyamine and epichlorohydrin. The regenerant pref. contains 5-7% wt. ammonium fluoride and is of pH 7-8. The process is simple, comprising only ore stage, does not produce large amts. of salt by-prods. is cheap to operate, and may be carrid out in sealed appts.
Patent DE-2711623-A1 (DE)
Title: Rotary switch in box-shaped housing with cast - has contact arm and terminal strips around axis and bush type bearings for rotating section
Inventor: BAER SIEGFRIED
IPC: H01H19/02
Filed: 1977-03-17
Abstract: A rotary electric switch has a box shaped housing, which contains the rotary switching section with a fitted switch cam. The cam is able to actuate a movable contact arm against a fixed contact arm. The terminals for the contact extend outside of the housing. The axis of rotation (3) of the switching section (26) is surrounded by the contact arm (24) and the terminal strip (22) of the contact sections (20, 21) as well as the protruding terminals (23). The side of the housing supporting the protruding terminals is fitted with a bush bearing (27) for the rotary switching section (26).
Patent DE-2715812-A1 (DE)
Title: Gymnastic apparatus for strengthening back and abdominal muscles - has frame fitted between door-posts of ordinary house to support instep of foot
Inventor: MUELLER-SCHMIDT ERIKA
IPC: A63B23/02
Filed: 1977-04-07
Abstract: Gymnastic apparatus, for strengthening the muscles of the abdomen and the back consists simply of two wedge shaped blocks (2) and a cross-bar (3). The blocks are placed, one at the foot of each doorpost (5) and the cross-bar inserted in the holes in each block. The person using the apparatus lies on the floor on the opposite side of the doorpost from the blocks and places the instep of each foot under the bar. The exercises are then performed by alternately raising the body to the sitting position and then reclining.
Patent DE-2722193-A1 (DE)
Title: Compact converter for magnetic bubble domains - has five magnetic element carriers with H:sections and I:sections to manipulate bubbles between various rest positions
Inventor: CHEN THOMAS TSUNG
IPC: G11C19/08
Filed: 1977-05-17
Abstract: Magnetic bubbles are moved into alternative paths by units containing four magnetic poles, defining resting points (1-4) for magnetic bubbles along a path (AB) which may be transferred to alternative points (1'-4') in an alternative path (CD). Movements are initiated by a rotating magnetic field. The paths are defined by H-section (10, 12) and I-section (14, 15). Field changes at domain boundaries are synchronised by a multiplexed signal system which causes the bubbles to be controlled on the first path by the first and third pole signals and on the second path by the second and fourth pole signals. All components are mounted on an integrated ship configuration.
Patent DE-2723875-A1 (DE)
Title: Photo-sensitive electrographic recording material - has two superimposed photo-sensitive layers on substrate with only one containing sensitising dye
Inventor: KATO AKIRA
IPC: G03G5/043
Filed: 1977-05-26
Abstract: The photo-sensitive electrographic recording material comprises a support substrate (4) carrying two super-imposed photo-sensitive layers (1, 2). The upper photosensitive layer (1) comprises a photosensitive medium, a sensitising dye and a resin binder. The lower photo-sensitive layer (2) comprises a photo-sensitive medium in a resin binder, but with no sensitising, dye. Pref. the thickness of the upper layer (1) is between 3 and 10 micro metres and the thickness of the lower layer (2) is between 5 and 60 micro metres. Both layers (1, 2) may contain the same photo-sensitive medium.
Patent DE-2724820-A1 (DE)
Title: Coloured ink writing using pens - uses colours which can be changed after writing by application of special bleaching fluid
Inventor: JANKEWITZ AXEL
IPC: B44D5/00
Filed: 1977-06-02
Abstract: A method of achieving a wide range of writing ink colours from a relatively small number of pens uses a special bleaching fluid. Each pen, which can be of the fibre up variety, is filled with a special ink which writes in one of the following four colours, violet, brown, black or red. A pen filled with the bleaching fluid may then be used to go over the written words. The bleach causes the violet to change to blue, brown to change to green, black to change to orange, and red to change to yellow. Thus only five pens are required for writing in eight different colours. Formulae are included for the recommended proportions of dyestuffs, bleach, water, etc. for each ink.
Patent DE-2728846-A1 (DE)
Title: Self service ice cream deep freeze counter - uses recirculating cooling air forming air curtain at open front
Inventor: GEHAUF GEB KIESEL LISELOTTE
IPC: A47F3/04
Filed: 1977-06-27
Abstract: The self service deep freezing counter especially for ice cream, has cold air blown over the goods to be cooled. This cold air generated in the refrigeration unit consisting of blower and evaporator, is circulated and returned to the refrigerating unit. The air outlet and inlet openings of the evaporator cells are arranged so that intensive cooling is ensured and the front is open for access. Sufficient air barrier is at the access opening. Above and below the access opening (9) and operating opening, is an evaporator cell (29, 30) each with an evaporator (43, 45). Groups of evaporators can be also provided. The evaporator cells (29, 30) have air inlet and outlet openings. These openings in the access opening region are aligned with each other to generate an air curtain.
Patent DE-2731226-A1 (DE)
Title: Char forming moulding compsn. - comprising a copolymer of an unsaturated anhydride and monovinylidene aromatic cpd., and a sulphonic ester
Inventor: REINEKE CHARLES EVERETT
IPC: A01N47/02
Filed: 1977-07-11
Abstract: A char-forming compsn. comprises (A) a polymer comprising (1) an ethylenically unsatd. carboxylic anhydride in an amt. providing >=1 equiv. anhydride moiety per g. compsn. and (2) a monovinylidene aromatic monomer in an amt. providing >=1 equiv. reactive aromatic moiety per g. compsn. and (B) an ester of formula (CF3SO3CH2)nR, where n is a positive integer and R is an n-valent tert.-hydrocarbyl gp. (opt. inertly substd.). Typical compsn. comprises CF3SO3CH2C(CH2Br)3 and styrene-maleic anhydride (75:25) copolymer. The compsn. is used in the mfr. of moulded articles such as containers, housings for machines and electrical equipment and cabinets for electrical appliances. It can also be employed in foamed form for thermal insulation, light construction or furniture mfr. On combustion of the compsn. a char is formed. The char barrier impedes migration of combustible material to the combustion point, enhances the structural integrity of the burning article, inhibits dripping of molten polymer, thermally insulates the unburned portion from generated heat and reduces smoke emission.
Patent DE-2734065-A1 (DE)
Title: Voltage regulated power supply - has short circuit protection using thyristor controlled series transistor enabling normal condition recovery
Inventor: RAETHEL HERMANN
IPC: G05F1/573
Filed: 1977-07-28
Abstract: A short circuit protected power supply has a power transformer, rectifiers, and a reservoir capacitor. It provides voltage regulation using a transistor controlled by a potential divider contg. a zener diode and placed in series with the load. A control voltage proportional to the load current is derived from a resistor in series with the operating circuit. The short circuit protection is economically realised and ensures both current reduction for an overload condition and current restoration if the load returns to normal. The base of the series transistor (5) is connected to the anode of a thyristor output and whose cathode is connected to the series resistor (6) connection remote from the transistor output.
Patent DE-2734611-A1 (DE)
Title: Label packet wrapping machine - has parting mechanism delivering packets from continuous inflow to transporter slides
Inventor: WIDMAIER THEO
IPC: B65B35/40
Filed: 1977-08-01
Abstract: The machine wraps packets of labels delivered to a slide which inserts them in sets in a welding station where they are welded in loops of strip material. A parting mechanism separates a packet at a time from the continuous flow of upright labels, and thrusts it into the path of a transporter slide working at right angles to the inflow direction and whose path extends into a packet magazine. A second transporter slide delivers the packets in the magazine in groups to the insertion slide. The paths of the slides and the magazine can slope downwards from the horizontal and in relation to the inflow direction, typically at between 20 deg. and 30 deg.
Patent DE-2734896-A1 (DE)
Title: High water protection wall - uses plate shaped elements which are thicker at top than at bottom
IPC: E02B3/10
Filed: 1977-08-03
Abstract: Production of a high water protection wall where piles are rammed in, at given regular spacings which exceed three times the width of conventional sheeting piles. Plate-shaped elements are inserted into the intermediate spaces and these engage into the ground about twice as deep as the water height. For the part of the wall lying in the bed of the water plates are used which are thicker in the top region which is directly below the surface than in the bottom section. Pref. the sheet thickness is 2/3 at the bottom of the top thickness. This difference in thickness can be produced by welding.
Patent DE-2738724-A1 (DE)
Title: Omega,omega-prime-bis-di:alkyl-amino-alkane(s) prodn. - by catalytic hydrogenation of omega,omega-prime-bis-di:alkyl-amide(s) of succinic, glutaric or adipic acid
Inventor: MESCH WALTER DIPL CHEM DR
IPC: C07D295/16
Filed: 1977-08-27
Abstract: Prodn. of omega,omega'-bis-dialkylamino-alkanes of formula (I) (in which m = 4,5 or 6; R1 and R2 are alkyls opt. substd. with hydrogenation-resistant substituents; alternatively R1R2N may represent a 5- or 6-membered heterocyclic ring) comprises hydrogenating the corresp. omega,omega'-bis-dialkyl-amides of formula (II) (in which n = 2,3 or 4) in presence of a catalyst contg. Cu and Co.
Patent DE-2741760-A1 (DE)
Title: Synchronisation of cyclical codewords of given length - involves key word added to code word, added again at receiver and tested for belonging to set of codewords
Inventor: GRUNDNER HANS DR ING
IPC: H04L7/02
Filed: 1977-09-16
Abstract: The codewords are synchronised at the transmitter and receiver side. They consist of bit trains of a certain length, and belong to a set of codewords. The method consists of a series of steps. A key word is selected of the same length as the codeword, but not belonging to the set of codewords, with an asymmetrical structure; this key word is side added modulo-2 to each codeword, and the words so coded are transmitted. The receiver selects bit trains of the length of a codeword and again adds modulo-2 the key word; each bit train so decoded is tested for belonging to the respective set of codewords; if it does, a synchronisation signal is delivered, after which the received bit trains are divided in blocks of a codeword length.
Patent DE-2742419-A1 (DE)
Title: Pneumatic logic system connector - has block formed by one piece elastic moulding held in guide by plate
Inventor: EIFERT GERD DIPL ING
IPC: F15B13/08
Filed: 1977-09-21
Abstract: The connector is for the attachment of pneumatic logic devices used for measurement and adjustment and which are plugged in. A distributor block has parallel passages intersected by branch passages at right angles. The block is a one-piece moulding(9) of elastic material, secured in a guide(7) by a plate placed on it and equipped with plug connectors(3, 4). The branch passages towards the plate are formed by continuous grooves open to the plate. The closed ones(15, 16, 17) can lead to the moulding face.
Patent DE-2744504-A1 (DE)
Title: Incinerating furnace with descending fire-grid - has transverse barrier tube preventing premature tumbling of components downwards
Inventor: PAULI BALDUIN DR ING
IPC: F23G5/00
Filed: 1977-10-04
Abstract: The furnace stepped grid is used in a furnace for incinerating bulky industrial components such as cable drums and pallets. The grid ensures smooth flow of these components on burning. In the region of the first combustion stage is arranged a transverse barrier tube. The tube is covered with tamped ceramic material held by projecting pins and internally cooled by air. The barrier tube prevents bulky round material from rolling prematurely down the stepped fire grid. The barrier tube can be removed axially through the furnace masonry walls.
Patent DE-2746071-A1 (DE)
Title: Axial mounting for radial ball bearing in housing - has wire circlip engaged in grooves between outer race and housing
Inventor: KAMPHAUSEN ERICH
IPC: F16B21/18
Filed: 1977-10-13
Abstract: The mounting for a radial ball bearing in a wall (4) comprises a bore (8) in the wall into which the outer race of the bearing is received over a part of its axial length. A housing (2) is secured to the wall and receives the remainder of the axial length. The bearing is held axially bya round section wire (13) inserted partly in a hafl-round groove (10) in the race and partly in a quarter-round groove (11) in the housing at its junction with the wall.