baber/WOPTO huggingface dataset:
Patent GB-1440817-A (GB)
Title: Removal of flash from the neck of hollow plastics articles
IPC: B29C49/72
Filed: 1973-08-09
Abstract: 1440817 Removing neck flash from hollow articles GEORG FISCHER AG 9 Aug 1973 [9 Aug 1972] 37875/73 Heading B5A Neck flash on a hollow article is removed by closing a holder around the neck of the article and moving the holder relatively to a cutting means to cut the flash in a plane perpendicular to the longitudinal axis of the neck. As shown in Fig. 1, the apparatus comprises a frame 11 carrying a device 9 slidable on rods 23 by means of cylinder 24. Device 9 comprises bars 1 supporting holders 10 opened and closed by means of cylinders 28. Holders 10 have cavities 8 to engage necks 3 of articles 2 below the head flash 5, which is to be cut-off in the plane 4. A device 12 comprises a vertically reciprocable rod 18 having grippers 19 to engage tail flash 15 and withdraw the article from opened blow mould 13 into guide 29 and against abutment 30 where holders 10 are closed thereabout. Grippers 19 are released and device 9 moved firstly past a rotating cutter 36 to remove tail flash 15 and then past cutter 6 to remove flash 5 in plane 4. Cutter 6 is adjustable by means of screws 33, 35. Holders 10 are opened and the trimmed article 2 falls by shoot 37 on to a conveyer belt (not shown).
Patent GB-1036938-A (GB)
Title: Improvements relating to cutting blades
IPC: B05D7/16
Filed: 1963-09-26
Abstract: Polyethylene of M.W. 2000 is emulsified in water with N-methyl morpholine and oleic acid; to this emulsion is added an aqueous dispersion of P.T.F.E.  The mixture is used to produce coatings comprising a continuous binder of polyethylene containing discrete particles of P.T.F.E.ALSO:A blade, such as a razor blade of carbon steel or stainless steel, scissor or knife blade or surgical instrument is coated with a polyethylene resin.  The resin may be an ethylene homopolymer or a copolymer with another olefinic or vinyl monomer. In the preferred embodiment, a continuous polyethylene coating containing particles of polytetrafluoroethylene is formed by applying a mixture of a polyethylene emulsion and a PTFE dispersion to razor blades.  The coating may be applied by brushing, dipping or spraying: the blade may first be de-greased, both the blade and the coating solution or dispersion may be preheated, and the coated blade may finally be heated to 275-325 DEG F.
Patent GB-1203667-A (GB)
Title: Gear pump
IPC: F04C15/00
Filed: 1968-08-08
Abstract: 1,203,667. Gear pumps. CHANDLER EVANS Inc. Aug.8, 1968 [Aug.9, 1967], No.38027/68. Heading F1F. A gear pump comprising a housing having a chamber, a pair of intermeshing gears supported on parallel axes for rotation within the chamber, movable pressure-loaded peripheral sealing means for said gears, and at least one pressureloaded side plate urged into sealing engagement with the lateral faces of the gears and the peripheral sealing means to sealingly divide the chamber into high and low pressure zones, wherein the peripheral sealing means includes first and second elements having arcuate surfaces, and first and second force means continuously directing first and second resultant forces towards the axes of the respective gears to continuously force the entire arcuate surfaces into peripheral tooth sealing engagement. As shown in Fig. 4, elements 19, 20 having arcuate surfaces 27, 28 are slidably mounted in cavities 22, 21 in the housing 1. Springs 29, 30 and discharge pressure admitted to depressions 26, 25 through ducts 32, 31 and 33, 34 urge the elements independently of each other into sealing engagement with the tooth tips to take up any wear that may occur between the shafts supporting the gears and the bearings. Sideplates 35, 36, Fig.2, are urged by discharge pressure into sealing engagement with the lateral faces of the gears and the elements to form a sealed discharge pocket 53. To counteract any cocking of the elements that may occur due to discharge pressure being supplied to seal only an inboard portion of each sealing element, discharge pressure is communicated to the peripheral surfaces 56, 57 of the elements through ducts 54, 55. In another embodiment, the elements are bonded to resilient elastomeric pads which are in turn bonded to a member having an extension slidable in a housing cavity. Discharge pressure supplied to the cavity together with a spring urges the member outwardly of the cavity and the elements independently into engagement with tooth tips of the respective gears. In other embodiments, the elements are pivoted by means of rollers between the elements and the member or the two elements may have rounded faces remote from the gears which pivot on rounded edges on the housing. The elements then being urged apart by a spring. A trapping groove is provided on the inboard face of side plate 36 at the region of the maximum meshing of the gear teeth.
Patent GB-1164019-A (GB)
Title: New copper complexes of reactive disazo dyestuffs and processes for their manufacture and use
IPC: C09B62/012
Filed: 1967-08-18
Abstract: 1,164,019. Copper complexes of reactive disazo dyes. CIBA Ltd. 18 Aug., 1967 [18 Aug., 1966; 6 July, 1967], No. 38225/67. Heading C4P. The invention comprises copper complexes of disazo dyes, which in the form of their free acids correspond to the formula wherein one of the symbols X represents SO 3 H and the other represents a fibre-reactive substituent linked through an -NH- group to the benzene nucleus A represents a naphthalene residue which is bound to the azo bridging group in a position vicinal to the -O- bond, n is 1, 2 or 3, and the residue B may carry substituents or form part of a naphthalene nucleus. They may be obtained by acylating the corresponding compounds in which one X represents NH 2  with the appropriate acylating agents. Examples are given for the production of the dyes. They are useful for dyeing or printing organic materials.
Patent GB-1058528-A (GB)
Title: Improvements in adjustable stands for flower-pots or the like
IPC: A47G7/02
Filed: 1965-09-07
Abstract: 1,058,528. Flower pot stands. L. AULAS and V. AULAS. Sept. 7, 1965 [Sept. 14, 1964], No. 38240/65. Heading A4H. A flower pot stand comprises a base A formed with radial mortise grooves 2 which are each slidably engaged by inverted V-shaped, upright supports B which are locked in selected position by screws 8 engaged in nuts held captive in the lower, widened part of the groove 2. A pot is engageable by the sides 6 of the uprights B with the bottom of the pot supported on the base A. Alternatively the uprights B may be reversely disposed in the grooves 2 so that the bottom of the pot rests on ledges 7 of the uprights B and the sides of the pot are engaged by surfaces 5 which have an inclination which differs from that of the other surfaces 6. A hollow 1, with or without a bottom wall 1a, receives outflowing water.
Patent GB-1439855-A (GB)
Title: Support assembly
IPC: F16C11/00
Filed: 1973-08-14
Abstract: 1439855 Hinges CLARKE CHAPMAN Ltd 25 April 1974 [14 Aug 1973] 38353/73 Heading E2F [Also in Division P2] A support assembly for accommodating movement of a pipe due to temperature changes comprises a sling rod 10 mounted for swinging movement by a nut 20 and washer 22 engaging with a part cylindrical surface 30 of an annular rocker washer 12 and by a part cylindrical surface 32 of the rocker washer, whose surface is in a plane perpendicular to that of the surface 30, engaging with a support 14. The rocker washer 12 has a tapered bore 34 and a spigot 36.
Patent GB-1362783-A (GB)
Title: Concrete removal
IPC: C04B41/53
Filed: 1971-07-23
Abstract: 1362783 Cleaning apparatuses BURMAH OIL TRADING Ltd and J T ULLMAN 23 July 1971 [10 Aug 1970] 38485/70 Heading C7E Apparatus encrusted with concrete or similar debris is cleaned by subjecting the apparatus to a jet of dilute aqueous acid solution at a pressure of at least 400 p.s. i.g., the concentration of the acid being 0À1-5À0% w/w. The acid may be organic, e.g. formic, acetic or citric acid, or inorganic, e.g. hydrochloric, sulphuric, sulphamic or phosphoric acid, and may contain a wetting agent and corrosion inhibitor.
Patent GB-1127106-A (GB)
Title: Improvements in or relating to 6,6-ethylene spirolactones
IPC: C07J21/00
Filed: 1966-08-26
Abstract: 1,127,106. 6-Spirocyclopropyl-steroid spirolactones. SMITH KLINE & FRENCH LABORATORIES. 26 Aug., 1966 [27 Aug., 1965], No. 38500/66. Heading C2U. [Also in Division A5] The invention comprises compounds of formula wherein R is hydroxy or keto and X is fluorine, and their preparation by (a) reaction of an androst 4-en-3-one spirolactone with a trialkylorthoformate to obtain the 3-methoxy-3,5 diene, treating this with a Vilsmeier reagent to give the 6-formyl derivative, reducing this to the 6- hydroxymethyl compound, dehydrating this to the 3-keto-#4,6-methylene compound, and treating this with dimethylsulphoxonium methylide, or (b) converting an estr-4-en-spirolactone to the 3-methoxy-3,5 diene as described above, reacting this with 2-acetoxyethyl mercuric acetate in the presence of a Lewis acid to give a 6-(2- acetoxyethyl) compound, hydrolysing this to the 6-[2-hydroxyethyl) compound, converting this to a reactive ester, for example the p-toluenesulphonate, and cyclizing, followed where appropriate and if desired by (a) 1,2-dehydrogenation or (b) reduction of an 11-keto group, followed by partial reoxidation of the 3,11-diol formed. Compounds of formula wherein R is hydrogen, hydroxyl or keto and X is hydrogen, are similarly prepared.
Patent GB-1314227-A (GB)
Title: Film cases for x-ray camera
IPC: G03B42/04
Filed: 1970-08-11
Abstract: 1314227 Clamps INCENTIVE RESEARCH & DEVELOPMENT AB 11 Aug 1970 [12 Aug 1969] 38730/70 Heading E2B [Also in Division H5] A cylindrical film case 1 for an X-ray camera includes, at each end of the cylindrical tube forming the case, an annularly extending clamping means 3 for forcing the edges of the film against the inner surface 13 of the tube by means of the flange 12, the clamping means including at least one radial cut to permit radial expansion and contraction, an abutment surface 11 for cooperation with a stationary, axially effective, abutment surface 10 of the tube to restrict axial movement, and a peripherally extending abutment surface 15 for cooperation with a peripherally extending abutment surface 16 of an axially adjustable actuating member 5, the surfaces 15 and 16 making an acute angle with the tube axis. As shown, the clamping means consists of a plurality of segments 14 which are urged radially inwardly towards the axis of the tube by a resilient ring 6, and are maintained in position, when loosened, by the guide ring 4. The actuating member 5 is moved axially by the screwing of the end ring 8 on the outer threaded periphery 18 of the tube 1.
Patent GB-1149950-A (GB)
Title: Processing hydrocarbons or chlorinated hydrocarbons containing carbon black
Inventor: STOCKBURGER DIETER
IPC: C09C1/56
Filed: 1966-08-31
Abstract: 1,149,950. Coking; recovering hydrocarbon quench oils. BADISCHE ANILIN- & SODAFABRIK A.G. 31 Aug., 1966 [1 Sept., 1965], No. 38818/66. Heading C5E. Hydrocarbons and chlorinated hydrocarbons containing carbon black, e.g. obtained by washing hot gases, are recovered and particulate coke is produced from the carbon black by atomizing the hydrocarbons containing the carbon black and contacting the atomized material with a stream of hot gas to evaporate the hydrocarbons without cracking them. Hydrocarbons boiling in the range 140 to 350 C., e.g. propylbenzene, xylenes, naphthalene, and chloronaphthalene are mentioned and the hot gas stream should be free of oxygen, halogens and halohydrocarbons, examples being superheated steam, superheated hydrocarbon vapour, nitrogen, flue gas and cracked gas, and the maximum temperature is 800 C. A binder, e.g. resins, asphalt or bitumen, may be added to the mixture to be treated. The coke particles are separated from the gas/vapour stream and the hydrocarbons are recovered therefrom by conventional methods. Concurrent or counter-current contacting of the gas with the hydrocarbon may be employed, and in one embodiment (see Fig. 3, not shown), coking &c. is completed in a fluidized bed. The gas may be recycled after recovering the hydrocarbons therefrom. An example is described.
Patent GB-343243-A (GB)
Title: Improvements in cartridge magazines for fire arms
IPC: F41A9/66
Filed: 1929-12-18
Abstract: 343,243. Cartridge magazines and chargers therefor. ARMAMENTI MILITARI SOC. ANON., 16, Via Botero, Turin, and ORLANDO, L., 18, Via Leopardi, Milan, both in Italy. Dec. 18, 1929, No. 38853. [Classes 9 (i) and 119.] A box magazine for small arms is split longitudinally ats, Fig. 2, from the mouth downwards so that the mouth can be opened out to admit the charger 8 and closed again by a slider 7 to retain the cartridges. The charger is in two strips 8<1>, 8<2>, Fig. 7, which can be withdrawn by a handle connecting the strips after closing the mouth of the magazine. The strip 82 may extend outwardly to enclose the bullet ends of the cartridges.
Patent GB-974734-A (GB)
Title: Improvements in carbon pile regulated electrical supply systems
Inventor: BURNS DENIS OWEN
IPC: H02P9/22
Filed: 1959-11-17
Abstract: 974, 734. Automatic voltage control. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 17, 1960 [Nov. 17, 1959; July 29, 1960], Nos. 38896/59 and 26454/60. Heading G3R. In an electrical supply system in which an electro-magnetically controlled carbon-pile is used to regulate the supply voltage the carbon-pile is provided with an additional control winding energized over an amplifier from transient disturbances appearing in the system, so as to damp the system againt oscillation. As shown, a carbonpile P in the field winding F of a D.C. generator G has a control winding C and an additional control winding CA connected, over an amplifier PA, across the field winding F. The input of the amplifier may be derived from the output circuit of the generator by way of a series resistor SR, Fig. 2, and a differentiating circuit D or by way of a current transformer (Fig. 3, not shown). A modification applicable to A.C. systems is described (Fig. 4 not shown) wherein the carbon-pile is connected in the field circuit of a D.C. generator supplying field excitation current to an alternator. The amplifier may be of thermionic valve, magnetic, or semi-conductor type.
Patent GB-1147972-A (GB)
Title: Voltage regulators for use with generators having field windings
Inventor: NOLAN ROGER WILLIAM
IPC: H02P9/30
Filed: 1965-09-13
Abstract: 1,147,972. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 16, 1966 [Sept. 13, 1965], No.38964/65. Heading G3R. A voltage regulator for an alternator (not shown) having a rectified output on lines +, - comprises a transistor 8 in series with the field winding 7 of the alternator; a voltage divider which is connected across the alternator output and which includes a resistance chain 15, 16, 17 and the collector/ emitter path of a transistor 12, the collector of which is also connected to the base of transistor 8; a Zener diode 14 connected between a tapping on the resistor 15 and the base of transistor 12; and a positive feedback circuit including a resistor 21 and a capacitor 19 connected between the collector of transistor 8 and the base of transistor 12. When the output voltage is below a predetermined value current flow through resistors 15, 16, 17 renders transistor 8 conductive and the field winding 7 is fully energized so that the output voltage builds up until, at the predetermined value, Zener diode 14 conducts to render transistor 12 conductive whereby transistor 8 is cut-off and the field current is reduced. By virtue of the feedback circuit 19, 21, the transistors 8, 12 then oscillate between the on and off states with a mark/space ratio determined by the output voltage, so that the latter is maintained constant by automatic regulation of the average field current.
Patent GB-1185845-A (GB)
Title: Improvements in or relating to the Production of Superconductors
IPC: H01L39/00
Filed: 1967-08-25
Abstract: 1185845 Improving physical &c. properties NATIONAL RESEARCH CORP 25 Aug 1967 [6 Sept 1966] 39240/67 Headings H1A A5 and A4D A method of making a super-conductive niobium-titanium body, e.g. a wire, comprises cold reducing a Nb-Ti body by N1 times (as defined below), heat-treating the body between 300- 500C for 30 minutes to 20 hours, further cold working the body with a reduction of N2 times, again heat-treating the body between 300-500C for 30 minutes to 20 hours and further cold working the body N3 times, the product of N1 x N2 x N3 being less than 1500. Preferably N 1 x N2 is between 30 and 150 and N3 is between 10 and 150. The reduction number (N) is found by dividing the cross-sectional area before reduction by that after reduction. In an example, the alloy had the following analysis:- Nb 52% Ti 48% 02 1300 ppm. N2 70 ppm. C 110 ppm. The Ti content may be varied between 10-70%. An ingot of the alloy was subjected to a preliminary cold forging operation at 480C., reducing the ingot from 3À5 to 2¥ inches diameter. It was then encased in a copper can and extruded to 0À6 inch diameter. A cold swaging to 0À2 inch  diameter (N1 = 9) followed, after which it was heat-treated at 450C for 4 hours. The rod was then cold drawn to À08 (N2 = 6), heat-treated at 450C for 4 hours and finally cold drawn to À02 (N3 = 16). A third heat-treatment, between 200- 350C for  to 5 hours, e.g. 250C for 2 hours, may follow.
Patent GB-1411682-A (GB)
Title: Benzothiophene derivatives
IPC: C07D333/64
Filed: 1973-08-20
Abstract: 1411682 Substituted 2-phenyl-2,3-dihydrobenzo[b]thiophene-1,1-dioxides CENTRE D'ETUDES POUR L'INDUSTRIE PHARMACEUTIQUE 20 Aug 1973 [21 Aug 1972] 39323/73 Heading C2C The invention comprises compounds of the formula wherein X and Y are H, C1, Br or C 1  to C 4  alkyl; Z is H, Cl, Br or C 1 to C 4  alkyl or alkoxy; and B is a saturated N-containing heterocyclic ring attached to the benzothiophene ring via its N- atom; and their acid addition salts with inorganic or organic acids. They may be obtained by reacting a compound of the formula with a heterocyclic secondary amine of formula and if required salifying the resulting compound of Formula I with an inorganic or organic acid. Examples are given for the production of the compounds. The compounds of Formula I have antiinflammatory, diuretic and antalgic properties and may be applied orally, rectally and parenterally in conventional forms.
Patent GB-863623-A (GB)
Title: Improvements relating to draught excluder devices
IPC: E06B7/20
Filed: 1957-12-19
Abstract: 863,623. Draught excluders. RICHINGS, J. W. Dec. 17, 1958 (Dec. 19, 1957], No. 39566/57. Class 20(3) A draught excluder comprising a strip 15 of a foamed synthetic resin &c. adhesively secured to a wood &c. strip 14 is supported by a single length of spring wire; the wire is shaped to provide two supporting arms 16, 21 secured at their free ends 17, 22 to the strip 14 and having at their other ends coil springs 18, 20 secured to the door 10, the coil springs being connected by a straight length 19. At the hinge side of the door the strip 14, or a member secured to this strip, projects beyond the door so that, when the door closes, the projecting member abuts against the door jamb and forces the draught-excluding strip sideways and downwards against the action of the spring. The projecting member may be a resilient arm attached to the strip 14, or an integral extension 23 of the spring, and carries at its free end a roller 24 or spring-loaded ball. In a modification the resilient arm 23 is omitted and the roller or spring-loaded ball is mounted directly on the strip 14. The foamed strip 15 is extended at 27 around the end of the strip 14.
Patent GB-1377297-A (GB)
Title: Process for isolating 1,5- and 1,8-dinitroanthraquinone from anthraquinone nitration mixtures
IPC: C09B1/00
Filed: 1972-08-25
Abstract: 1377297 Dinitroanthraquinones BAYER AG 25 Aug 1972 [28 Aug 1971] 39725/72 Heading C2C The invention comprises a process for the production of 1,5-dinitroanthraquinone of a degree of purity of at least 80% in which the undissolved 1,5-dinitoanthraquinone is separated off from a sulphuric acid-anthraquinone nitration mixture having an SO 3  content of 8-20%. After separating the 1,5-dinitroanthraquinone the mother liquor may be diluted to a sulphuric acid content of 80-100% and the 1,8-dinitroanthraquinone which precipitates may be separated off.
Patent GB-1242752-A (GB)
Title: Improvements in or relating to feedback amplifiers
Inventor: KLOCKOW DENNIS HARRISON
IPC: H03F1/34
Filed: 1968-08-20
Abstract: 1,242,752. Repeater amplifiers. WESTERN ELECTRIC CO. Inc. 20 Aug., 1968 [23 Aug., 1967], No. 39799/68. Headings H3T and H4R. An autotransformer 12 forms part of a feedback amplifier, and couples a part 14 of the amplifier, connected to an intermediate terminal 13 on the autotransformer to a line 10 which is connected to one end terminal 11, the other end terminal 16 being connected to a feedback network 15 and also to one end of an impedance matching resistor 17 whose other end is connected to one of the other two terminals 11 or 13. The feedback network 15 and the line 10 are said to form a conjugate pair whereby no voltage is dropped across the feedback 15 due to a voltage at 10, and the amplifier is for repeater use. In Fig. 3, the line 10 constitutes the input, and the amplifier part 14 includes two transistors 31, 39 and a filter circuit 40. In an alternative embodiment (Figs. 4 to 6, not shown) the line 10 is the output, the arrangement of components being substantially similar. In this case the amplifier part 14 is a three transistor amplifier of which two transistors (60, 61) operate in parallel, having their collectors and bases respectively connected together, and their emitter coupled through a capacitor (66).
Patent GB-1083901-A (GB)
Title: Alkyl pyrazinoate derivatives
Inventor: CRAGOE EDWARD JETHRO
IPC: C07D241/26
Filed: 1964-10-06
Abstract: The invention comprises C1- 5 alkyl 3,5-diamino - 6 - chloropyrazinoates and the preparation thereof by reacting C1- 5 alkyl 3 - amino - 5,6 - dichloropyrazinoates with dry gaseous ammonia in the presence of a polar organic solvent.  Preferred solvents are C1- 5 alkyl sulphoxides, C1- 5 alkyl sulphones and N,N - di - (C1- 5 alkyl) alkanamides.  Suitable reaction temperatures are in the range 10 DEG  C. to steam bath temperature. Examples relate to the preparation of methyl 3,5-diamino-6-chloropyrazinoates.