baber/WOPTO huggingface dataset:
Patent GB-1200003-A (GB)
Title: Improvements relating to vehicle headlamps
IPC: B60S1/60
Filed: 1968-10-25
Abstract: 1,200,003. Headlamp cleaning devices. ROBERT BOSCH G.m.b.H. 25 Oct., 1968 [27 Oct., 1967], No. 50823/68. Heading A4F. A device for cleaning the front disc or lens of a vehicle headlamp comprises at least one piston movable in a cylinder and connected by a mechanical linkage to a wiper element and acted upon by the pressure of washing liquid to be delivered on to the disc or lens. Washing liquid fed from a container 56 is applied by a pump 54 to two pistons 34 in cylinders 32, 33 (Fig. 1, not shown), and via a conduit 37 to a spray nozzle 58 (Fig. 1, not shown) for directing washing liquid on to the headlamp lens 11. The pistons 34 are connected to cable drums 38 (39) by cables 25, 26 (not shown) carrying a wiper bar 22, so that the piston movement resulting from the operation of the pump 54 draws the wiper bar 22 across the lens 38 against the action of a helical spring 42.
Patent GB-1528797-A (GB)
Title: Leader for information carrier
IPC: G11B15/08
Filed: 1975-12-12
Abstract: 1528797 Polyester film HOECHST AG 12 Dec 1975 [16 Dec 1974] 51034/75 Heading B3B A dyed biaxially oriented polyester film (e.g. polyethylene terephthalate) useful as a leader for an information carrier wherein the leader has a transparency to light of wavelength 750 nm of at least 60% is formed by mixing polyester chips with a suitable dye prior to extrusion stretching and optionally heat setting.
Patent GB-1163909-A (GB)
Title: Method and Apparatus for Thermochemical Scarfing
IPC: B23K7/06
Filed: 1966-11-18
Abstract: 1,163,909. Thermochemical scarfing apparatus. UNION CARBIDE CORP. 18 Nov., 1966 [22 Nov., 1965], No. 51756/66. Heading B3V. A thermochemical scarfing apparatus comprises upper and lower blocks T, B each with a row of gas discharge ports 10, 24 extending transversely of the work W and the ports in at least one of the blocks have a non-circular crosssection. The block with the non-circular ports has a gas mixing means 12 connected to an oxygen source 16 and a fuel gas supply 20. A sheet-like stream of high pressure oxygen is discharged from the slots between the blocks on to a molten slag-iron puddle formed upon the work by the preheat gas from the ports 10 in the upper block. The lower ports may be circular and are preferably only used during the scarfing to confine the stream of oxygen to its sheet-like configuration. While the fuel gas for the preheat combustible mixture should not be acetylene for safety reasons, acetylene may be used for the lower flames. The crosssection of the upper ports may be rectangular, triangular, star-shaped &c. The apparatus is particularly suited for scarfing cold steel but may also be used for hot steel.
Patent GB-1509180-A (GB)
Title: Liquid crystal devices
IPC: G02F1/1334
Filed: 1974-12-02
Abstract: 1509180 Controlling light DEFENCE SECRETARY OF STATE FOR 26 Nov 1975 [2 Dec 1974] 52123/74 Heading G2F [Also in Divisions H3-5] At least part of a plastics sheet, e.g. of polypropylene, with an open pore structure is impregnated with liquid crystal material. Other parts of the sheet may contain a non-mesomorphic organic liquid such as lubricating oil. The liquid crystal material may be painted, printed or sprayed on to one or both faces of the sheet and absorbed by capillary action. The pores, which may vary in size from molecular dimension of the liquid crystal material to 100Á, may be elongate and aligned, whereby the liquid crystal molecules also tend to align. If the liquid crystal material is dichroic, or contains a dichroic additive, a dichroic polarizing layer results. Such may be used for example as (coloured) polarizers either side of an electro-optic nematic "twist" cell; or two such sheets comprising a series of dichroic strips respectively in register with the odd and even lines of a television display and with mutually orthogonal polarizing directions, may provide a stereoscopic display when viewed using spectacles having lenses with mutually orthogonal polarizing directions. The sheet may be coated with lacquer on either side, or may be arranged between electrode bearing glass plates. In the latter arrangement, in which the liquid crystal thickness can be made substantially constant, the liquid crystal material can exhibit dynamic scattering (cholesteric in a nematic host) or a change in colour when viewed via a polarizer (dichroic material in a nematic host, or dichroic nematic material). If the sheet contains either of the latter two types of material and is heated above the isotropic point, changes in colour can be observed using an analyzer.
Patent GB-1486813-A (GB)
Title: Monolithic integrable bistable circuit
IPC: H03K3/286
Filed: 1974-12-04
Abstract: 1486813 Bi-stable circuits ITT INDUSTRIES Inc 4 Dec 1974 [5 Dec 1973] 52507/74 Addition to 1277536 Heading H3T [Also in Division G4] The bi-stable circuit claimed in the Parent Specification is modified to increase the cut-off frequency with respect to the input signal. One modification is to add a collector to each control transistor T21, T22 and connect it to the base of the other (also claimed in an earlier Patent of Addition 1,340,850). Another is to connect the base electrodes of the control transistors to separate inputs S1, S2 or to a common input S (Fig. 3, not shown) via separate complementary transistors T81, T82. When a common input is used, the input transistors T81, T82 may be combined to form a single multi-collector transistor. The load resistors R1, R2 may be replaced by separate current source transistors or a single multi-collector transistor (Figs. 2, 3, not shown). The auxiliary transistors T31, T32 may have a further collector electrode connected to the collector of the switching transistor in the same half.
Patent GB-1111189-A (GB)
Title: Improvements in or relating to infusion bags
Inventor: RUSSELL GORDON DOUGLAS
IPC: B65D85/808
Filed: 1966-11-25
Abstract: 1,111,189. Infuser packages. JOHNSON & JOHNSON. 25 Nov., 1966, No. 52944/66. Heading B8C. [Also in Division D1] In order to produce an efficient heat-seal, the non-woven fabric, from which an infusion bag is produced, contains from 150-250 grams/yd.<SP>2</SP> of individual non-thermoplastic fibres and at least 6% by weight of individual thermoplastic fibres which occupy from 12-25% of the surface area in the heat-sealable face of the fabric. The thermoplastic fibres undergo fusion between 250‹ and 350‹ F. Bags produced from this fabric can expand up to 50% overall when placed in boiling water. Strips of this fabric are folded longitudinally and cut transversely to form separate pockets which are then filled with the infusable substance and sealed.
Patent GB-1165168-A (GB)
Title: Improvements in Railway Track Sleepers
Inventor: GROFF EMORY LOWELL
IPC: E01B3/44
Filed: 1966-11-28
Abstract: 1,165,168. Railway sleepers. POOR & CO. 28 Nov., 1966, No. 53236/66. Heading E1G. A moulded synthetic resin sleeper has a railreceiving plate P embedded in its surface by means of keying apertures 13. Recesses 14 are provided for rail-fastening members. The sleeper may be reinforced by metal or glass fibre rods extending between transverse plates, and its undersurface may be provided with a channel or rib.
Patent GB-1218160-A (GB)
Title: Triazinylamino stilbene derivatives and their use as optical brighteners
IPC: D06L3/12
Filed: 1969-10-30
Abstract: 1,218,160. Optically brightening textiles and paper; paper. J. R. GEIGY A.G. 30 Oct., 1969 [31 Oct., 1968], No. 53301/69. Headings D1P and D2B. [Also in Divisions C2 and C5] As optical brighteners, use is made of triazinylamino stilbene compounds of the formula: in which W denotes a morpholino or 2, 6- dimethyl-morpholino radical, an N-benzyl-N- hydroxy-alkylamino radical, an N-hydroxyethyl-N-alkylamino radical or an N-hydroxyalkyl-N-cyclohexylamino radical, X denotes a dialkylamino radical, an alkyl radical in these definitions containing 2-4 carbon atoms, Y denotes hydrogen, an alkali or alkaline-earth metal cation or a quaternary alkyl ammonium cation and Z denotes an alkoxy group of 1-4 carbon atoms or a group -SO 3 Y (see Division C2). Examples describe the use of the products in the manufacture of paper and the treatment of cotton. The treatment of wool and polyamide fibres and fabrics is also mentioned. The compounds may be used as crystalline solids or as solutions, a number of solvents such as glycol ethers, alkanolamines and dimethyl formamide being specified. In the treatment of paper pulp additions are made also of alum and rosin and the brightener is introduced in a starch solution, while in washing cotton in a solution containing the brightener, sodium silicofluoride and optionally sodium metasilicate, caustic soda and sodium, tripolyphosphate may be included.
Patent GB-1199455-A (GB)
Title: Method and Apparatus for Controlling an Automatic Winding Machine.
Inventor: JENNY RUDOLF
IPC: B65H54/24
Filed: 1967-11-23
Abstract: 1,199,455. Stop motions. SCHWIETER ENG. WORKS Ltd. 23 Nov., 1967 [25 Nov., 1966], No. 53406/67. Heading D1D. An automatic yarn winding machine having a plurality of winding stations 3 each including a yarn monitoring device 7 is controlled so that a signal is delivered to a storage apparatus in response to a monitored yarn disturbance at one of the winding stations 3. The stored signal is evaluated in the storage apparatus and the winding station is stopped and a yarn disturbance removal apparatus is prevented from operating when the stored signal reaches a threshold value. As shown, yarn F is wound from cop 4, over ballon breaker 5, yarn brake 6, yarn cleaner 7, waxing apparatus 8, stop bracket 9, grooved drum 10 to bobbin 11. During normal winding turret 2 together with winding stations 3 rotate, thereby periodically closing switch 13 (contact 13' in Fig. 3). If a yarn rupture occurs measuring cell 17 of the yarn cleaner 7 causes relay 20 to open contact 22 and close contact 21. Additionally the malfunctioning winding station is brought into operable association with the yarn disturbance removal apparatus (not shown) and arrested. The winding stations are then rotated again and switch 13 (contact 13') is closed 'by stationary cam 14. If the yarn rupture has been repaired the cleaner 7 will have opened contact 21 and closed contact 22. However, if the knotting operation has failed or the yarn breaks again contact 21 is closed and contact 22 is opened. In this case, capacitor 24 is charged from current source 25 (contact 13' still being closed) and the disturbance removal apparatus operated again. This procedure may be repeated up to say three times, the capacitor being charged each time the rupture is not repaired. After the three attempts capacitor 24 discharges through trigger switch 27 causing lamp 15 to light and relay 31 to stop the relevant winding station. The yarn defect is then repaired manually. If the yarn has been automatically repaired before capacitor 24 operates trigger 27, the closed contact 22 discharges capacitor 27 through resistor 29. Cam 14 and switch 13, which form a checking path of the rotating turret, can be replaced by magnetically operated switches to close switch 13", see Fig. 3. Capacitor 24 can be replaced 'by an inductance or electromagnetic - ally operated spring. Relay 20 of the yarn cleaner can be operated by means of stop bracket 9.
Patent GB-1219050-A (GB)
Title: Propellent compositions
Inventor: RATZ HEINZ
IPC: C06B23/04
Filed: 1969-10-31
Abstract: 1,219,050. Propellants. DYNAMIT NOBEL A.G. 31 Oct., 1969 [2 Nov., 1968], No. 53613/69. Heading C1D. A propellent composition comprises ammonium nitrate and active carbon, in a total amount of 86-93% by weight, and a densensitizing additive in an amount of 7-14% by weight; 83-95% ammonium nitrate and 5-17% active carbon are present based on the combined weight of these two substances. Densensitizing additives are ammonium oxalate, sodium oxalate, ammonium adipate, potassium tartrate, sodium carbonate, sodium bicarbonate, urea, a carbamate, or graphite. A small quantity of vanadium pentoxide or cupric oxide may be added as a combustion accelerator.
Patent GB-1284895-A (GB)
Title: Electronic flash device with automatic light control
IPC: G03B15/05
Filed: 1969-11-03
Abstract: 1284895 Photographic flashlight apparatus WEST ELECTRIC CO Ltd 3 Nov 1969 [14 Nov 1968] 53807/69 Heading H2H [Also in Division H3] A control circuit for a photographic flashlight discharge lamp is so arranged that the quantity of light produced by the tube and the flash duration are controllable in accordance with the light falling on an object being photographed, the energy for the discharge lamp being provided by way of a capacitor. Capacitors 1, 3, 11 are initially charged from a D.C. source 18, 19. A switch 20, which may be the synchronizing contact of a camera, is then closed whereupon capacitor 11 discharges through the primary winding of a transformer 9 thereupon providing a pulse to the starting electrode of a flashlamp 2. At the same time a potential is provided at the junction between resistors 12, 13 which potential is applied to the gate of a thyristor 4 rendering it conductive. Capacitor 1 can then discharge through the lamp 2 to provide a flash. A light sensitive element 6 monitors the light output of the lamp 2 and when a predetermined amount of light has been emitted by the lamp 2-which amount can be preset by a potentiometer 16- a triac 5 is rendered conductive and the capacitor 3 then discharges by way of the triac 5 and the thyristor 4, the reverse polarity of the thyristor 4 rendering it non-conductive to extinguish the lamp 2. Premature discharge of the capacitor 3, should stray illumination impinge on the element 6 before the lamp 2 is illuminated, is prevented by the diode 7. In other embodiments the triac 5 may be replaced by a thyristor or a diac and the element 6 electrically isolated therefrom by a transformer. The light sensitive element 6 may be a photocell.
Patent GB-1108518-A (GB)
Title: Improvements in or relating to armature mountings for electromagnetic relays
IPC: H01H50/26
Filed: 1965-12-20
Abstract: 1,108,518. Electromagnetic relays. SIEMENS A.G. 20 Dec., 1965 [22 Dec., 1964], No. 53855/65. Heading H1N. An armature retaining spring 4 of a relay in which the armature 2 rocks on a knife-edge of a yoke 1 also serves to bias the armature to one position. A fine threaded screw bears at 7a on the spring and can be adjusted to set the biasing force and its direction. Instead of engaging in a recess 1b the spring end 4b may be apertured to pass over a projection on the yoke (Fig. 2, not shown) or may rest on the flat upper surface of the yoke (Fig. 3, not shown). The end 4a of the spring may be divided to engage in two recesses in the armature.
Patent GB-1344976-A (GB)
Title: Aminoalkanol compounds and methods for their production
IPC: C07C255/54
Filed: 1972-11-23
Abstract: 1344976 Alkanolamines PARKE DAVIS & CO 23 Nov 1972 [14 Dec 1971] 54261/72 Heading C2C Compounds of the general formula (Z=C 1-6  alkoxy, C1, CN, CH 2 OH, COCH 3 , m-C 1   6  alkyl, o-allyl) and their salts are prepared by reacting a corresponding 1-halo-3- phenoxy-2-propanol or the corresponding 1,2- epoxy - 3 - phenoxypropane with 3,4 - dimethoxyphenethylamine, optionally followed by salt formation. The above compounds are cardio-selective #- adrenergic blocking agents.
Patent GB-1369462-A (GB)
Title: Enzymic resolution of racemic n-acyl-dl-amino acids
IPC: C07D307/54
Filed: 1971-11-23
Abstract: 1369462 Enzymic resolution of racemic N-acyl- DL-amino acids BEECHAM GROUP Ltd 23 Nov 1971 54279/71 Heading C2C A racemic acid of the formula where R is an alkyl, aryl or aralkyl group, each of which may be substituted, and R 1  is an acyl group, except that when R is phenyl, R 1  is not phenylacetyl, is resolved by treating in aqueous medium with a deacylase enzyme known to remove the N-acyl side chain of a penicillin to give 6-aminopenicillanic acid, to give the free L-amino acid and separating this from the N- acyl-D-amino acid. The latter is then subjected to acid hydrolysis to give the free D-amino acid. The deacylase enzyme is preferably derived from a suitable strain of Escherichia Coli and may be in a water-insoluble form.
Patent GB-1146520-A (GB)
Title: Improvements in or relating to acoustical thermometry
Inventor: BELL JOHN FREDERICK WILLIAM
IPC: G01K11/26
Filed: 1966-12-06
Abstract: 1,146,520. Measuring temperature acoustically. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 5 Dec., 1967 [6 Dec., 1966], No. 54647/66. Heading H4D. An acoustic thermometer comprises a temperature sensor 11 in the form of a solid body whose natural vibration frequency is temperature dependent, a transducer 2 for transmitting bursts of acoustic oscillations of a variable carrier frequency to the sensor via a transmission line 7 and via a coupler 10 of high acoustic impedance, and an oscilloscope 4 for observing variations in echo signals from coupler 10 and sensor 11 with the proximity to the resonant condition of the sensor. As the carrier frequency is varied and resonance is approached the contribution which sensor 11 makes towards the echo signal becomes comparable in magnitude with the contribution of coupler 10. At resonance a zero amplitude region occurs in the echo envelope; this zero may be detected automatically. Temperature is derived from the resonant frequency and a calibration chart. The resonant frequency may be transmitted as a data signal over a suitable link for subsequent conversion to digital form for recording or use in the control of a system. A mass 9 (which may include a polarizing magnet if transducer 2 is of the magnetostrictive type) reflects acoustic energy to augment the energy transmitted towards sensor 11.
Patent GB-1193730-A (GB)
Title: An Improved Split Ring for a Pipe-connection assembly
IPC: F16L23/028
Filed: 1968-11-20
Abstract: 1,193,730. Pipe joints; circlips &c. MANNESMANN A.G. 20 Nov., 1968 [21 Nov., 1967], No. 55011/68. Addition to 1,148,556. Headings F2G and F2H. In a connection between two pipes 1 in endto-end relation and associated with flanges 2 and wherein a split ring 3 is located between a seating surface 6 of one of the flanges and a seating surface 12 of the associated pipe, the ring having arcuate abutment surfaces 31 on opposite sides thereof, which surfaces have substantially coincidental centres of curvature and are contained within a quarter of a circle, the radius of curvature of the pipe abutment surface being greater than that of the flange abutment surface, the ring, at a position spaced angularly from the gap between the ends thereof, is formed with at least one notch which locally reduces the cross-sectional area of the ring.
Patent GB-1180909-A (GB)
Title: Improvements in Fibre-Reinforced Materials.
Inventor: CALOW CLIFFORD AUBREY
IPC: B29C67/00
Filed: 1966-12-12
Abstract: 1,180,909. Reinforced tapes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 Nov., 1967 [12 Dec., 1966], No. 55622/66. Heading A4X. [Also in Divisions B3, B5 and E1] Material e.g. tape reinforced with aligned fibres is produced by mixing the fibres with the material in a molten state, contacting the mix with a surface moving relative to the mix and cooling said surface to gradual solidification of the mix. The material may be a thermosetting plastics material and the fibres may be ceramic whiskers. In the embodiment illustrated, the surface 6 inches is either side of a hollow belt 9 containing a coolant 10 and the belt passes through a tank 8 containing the mix 2 inch at a speed which causes alignment of the fibres along the belt. Two other embodiments are described; in the first the surface is the inner wall of a rotating cylinder containing the molten mix and cooling is applied to the outside and in the second the surface is a fixed cooled cylindrical surface around which the mix is rotated.
Patent GB-1144800-A (GB)
Title: A vehicle having an articulated suspension system, and a tow bar structure for the vehicle
Inventor: MULHOLLAND GEORGE K
IPC: B62D63/06
Filed: 1967-12-11
Abstract: 1,144,800. Vehicle frames; steering trailers. SAGINAW PRODUCTS CORP. 11 Dec., 1967, No. 56202/67. Headings B7D and B7H. A vehicle comprising similarly to that described in Specification 1,092,120, a flexible rectangular underframe 11 having four corner assemblies 22, 23, 24, 25 which are each supported by a wheel and are rotatably connected to side members 26, 27, 28, 29 supporting a rigid body, is provided with a tow bar structure 35 including a first part rigidly connected to one corner assembly 25 and a second part rotatably connected to another corner piece 22. The tow bar structure 35 comprises a tow bar 40 pivotally connected to a steering tongue 38 which is pivotally mounted on a beam 35a having a first arm 37 terminating in a plate 42 bolted or welded to the corner assembly 25 and a second arm 36 terminating in a bearing portion 42 rotatable on the corner assembly 22. Tie rods 41 are connected between the tongue 38 and steering arms 12a, 15a for two wheels 12, 15.
Patent GB-1444799-A (GB)
IPC: C07C51/31
Filed: 1973-12-07
Abstract: 1444799 Oxidation catalysts BASF AG 7 Dec 1973 [12 Dec 1972] 56865/73 Heading B1E [Also in Division C2] Catalysts comprise an inert nonporous carrier supporting a layer of active material which contains 1-40 wt % V 2 O 5 , 60-99 wt % anatase and 0.01-0.15 wt % (based on the anatase) of a sulphur-free compound of Na or K, the V 2 O 5  content being 0.05-4 wt % based on the supported catalyst. The active material may also contain 0.1-3 wt % of phosphorus as a compound and 0.1-15 wt % of an oxide of Al, Zr, Sb, As, Nb, Cr, Mo, W, Co or Ni and the thickness of the layer may be 0.04-0.2 mm.
Patent GB-1441944-A (GB)
Title: Hot-air balloons
IPC: B64B1/58
Filed: 1973-12-10
Abstract: 1441944 Hot-air balloons CAMERON BALLOONS Ltd 28 Nov 1974 [10 Dec 1973] 57222/73 Heading B7W To facilitate inflation of hot-air balloons the mouth 11 of the envelope 10 is fitted with a fabric inverted hood 11 which partially surrounds the burner 11 and assists in directing air into the envelope during inflation. The balloon or the hood may be fitted with a vane to ensure that the opening of the scoop faces thewind. The hood may extend round themouth of the balloon by an angle between 130 and 320 degrees, and may be secured by releasabe flexible tape.
Patent GB-1442650-A (GB)
Title: Plant for producing hollow ingots by an electroslag melting  process
IPC: B22D23/10
Filed: 1973-12-11
Abstract: 1442650 Apparatus for electroslag refining INST ELECTR IM EO PATONA AKAD NAUK UKRAINSKOI SSR 11 Dec 1973 57306/73 Heading B3F In an apparatus for producing hollow ingots by an electroslag melting process and comprising a vertically movable electrode holder (3), a mould (13), and a vertically movable mandrel 6 insertable into the mould through a hole in a baseplate (14), the mandrel is secured to a vertically movable bracket 10 by means of a ball 8 and socket 9 joint. The socket 9 is provided with bearings 11 which allow the socket to move horizontally within a housing 12. The mould (13) and its baseplate (14) are mounted on a carriage movable along horizontal guide bars 15.
Patent GB-1167158-A (GB)
Title: Yarn Guide Roller for Drafting Devices on Draw-Twisting and Draw-Winding Machines.
Inventor: STEICHELE JOSEPH
IPC: D02J1/22
Filed: 1966-12-23
Abstract: 1,167,158. Rollers. SKF KUGELLAGERFABRIKEN G.m.b.H. 23 Dec., 1966, No. 57761/66. Heading F2U. [Also in Division D1] A roller for the drafting devices of drawtwisting and draw-winding machines comprises a casing 27 formed from a tubular element with at least one end 8 widened conically from the inside to form an end on the roller of increasing diameter, the casing having races formed therein for roller members, e.g. balls 5, which rotatably mount the casing on a shaft. The roller shaft is mounted in a wall 1 and carries a disc 9<SP>11</SP> which closely approaches the roller casing to form a partial seal. An outer resilient disc 12 and an inner disc 11 also seal the bearings. Disc 12 may be such that a lubricating needle can be inserted therethrough, and that when the needle is withdrawn after lubrication the hole in disc 12 closes to continue to act as a seal.