baber/WOPTO huggingface dataset:
Patent GB-1280983-A (GB)
Title: Improvements in and relating to breathing apparatus
Inventor: CHEFFERS STANLEY JOHN
IPC: B63C11/24
Filed: 1968-08-08
Abstract: 1280983 Respiratory apparatus SIEBE GORMAN & CO Ltd 1 Aug 1969 [8 Aug 1968] 37903/68 Heading AST In a closed circuit breathing apparatus which includes means for absorbing carbon dioxide, a mouthpiece 5 or a mask (6) is connected to a tubular chamber 1 provided with inhalation and exhalation valves, 11 and 14, to inhalation and exhalation conduits, 2 and 3, respectively, the inhalation valve 11, being secured in an extension 7 of the inhalation conduit which extends within the tubular chamber and located between the mouthpiece 5 or the mask (6) and the exhalation valve 14, so that heat is transferred to it from the exhaled air. The inhalation conduit extension 7, is fixed rigidly by an annular flange 9 and a sleeve 8, in the chamber 1. The sleeve 8 forms an annular chamber 10 around the other end of the extension 7. The inhalation conduit 2 communicates with the extension 7 through the annular chamber 10 in which ice, which may collect in the inhalation conduit, may be trapped before reaching the inhalation valve.
Patent GB-918682-A (GB)
Title: Improvements in or relating to trolleys
Inventor: JONES NORMAN BERTRAM
IPC: A47B31/00
Filed: 1960-11-05
Abstract: 918,682. Tea trollies. WOODMET Ltd. Oct. 4, 1961 [Nov. 5, 1960], No. 38092/60. Classes 52 (2) and 52 (3). In a tea trolley, the butt joint 9 or joints of each tray rim 7 are positioned at the uprights 14 of the supporting frame and connected by a fishplate 12 having a screw 18 which passes through the rim into upright 14. The rim 7 may be in one piece or in two L-shaped pieces of extruded light alloy and is grooved to receive the edge of an aluminium tray base 6. Uprights 14, of square section light alloy tube, are of inverted U-form and have castors fitted at the base of each leg. Screw 18 is engaged in a tapped tubular rivet arranged in upright 14. The rim 7 is prevented from twisting about screw 18 by the projecting head of a screw entering a blind hole 22 in the rim.
Patent GB-1525143-A (GB)
Title: Detection of fibrinolysis and/or blood coagulation
IPC: A61K38/48
Filed: 1976-09-15
Abstract: 1525143 Plasmin-antiplasmin complex LEUVEN RESEARCH & DEVELOPMENT VZW 15 Sept 1976 [19 Sept 1975] 38230/76 Heading C3H [Also in Division G1] Assay reagents comprise a plasmin-antiplasmin complex having a molecular weight of 120,000 to 140,000 and not immunochemically reactive with alpha-antitrypsin, alpha 2 -macroglobulin, C 1 -esterase inhibition, inter-alphatrypsin inhibitor, anti-thrombin III or alpha 2 - anti-chymotrypsin, and a thrombin-antithrombin III complex.
Patent GB-836268-A (GB)
Title: Improvements in spinning pots
IPC: D01D7/02
Filed: 1957-12-09
Abstract: 836,268. Spinning pots. HOLLANDSCHE KUNSTZIJDE INDUSTRIE. Dec. 9, 1957 [Dec. 28, 1956], No. 38263/57. Class 120(2) A spinning pot comprises a cap, which is held against the rim of a driving disc during rotation by means of an intermediate expansible ring, and a support for a spinning cake which extends inwardly from the ring and is integral with or carried by it. A flange 16 of the cap 11 engages a groove 13 of the ring 8, which has an extension 10, Fig. 2, or carries a disc 19, Fig. 3, to support the cake. The lower edge of the cap 11 and ring 8 expand under centrifugal force until the conical outer surface 7 of the ring 8 engages the rim 4 of the driving disc 3. When stationary, the cap 11 and ring 8 containing the cake may be freely removed. Liquid discharge openings are provided in the bottom edge of the cap 11, in the ring 8 and in the driving disc 3. The cap 11 may be made of unplasticised polyvinyl chloride, or of a polyester or phenol formaldehyde resin and reinforced with glass fibres.
Patent GB-1218124-A (GB)
Title: Radiation detection devices
Inventor: SPERGEL PHILIP
IPC: H01J47/08
Filed: 1968-08-09
Abstract: 1,218,124. Ionization detectors. BAIRDATOMIC Inc. 9 Aug., 1968, No. 38272/68. Heading H1D. [Also in Division G1] A detector for investigating the radiation emanating from various points in an area comprises a planar array of a multiplicity of ionisation chambers which have electrically conducting walls, accommodate insulated pins, include an ionizable gas and are interconnected by ports for gas pressure equalization, the pins being connected to a matrix and a source of potential so that a chamber-pin discharge occurring due to incident radiation may be Indicated. The chamber may be formed from two sheets one having a multiplicity of blind holes or from three sheets comprising a coverplate of aluminium or a metallized plastic, a metal honeycomb, and an insulating plate carrying pins in registry with the centres of the honeycomb apertures. The gas may be static and under pressure, or circulating and the pulses developed during a discharge may be applied through graded " row " and "column " resistors and amplifiers to position the spot of a cathode-ray tube which may be photographed to integrate the coincident spots. The pulses may be counted in a magnetic store memory and the arrangement may include means for preventing interference between successive pulses. Specific reference is made to the use of the apparatus for examining a chromatographic paper containing dispersed concentrations of radioactivity associated with small sites of " tagged " chemical materials. The honeycomb may be of lead, aluminium, copper, brass or stainless steel and dimensions are exemplified.
Patent GB-1377946-A (GB)
Title: Two circuit brake system
IPC: B60T11/32
Filed: 1973-08-13
Abstract: 1377946 Fluid pressure brakes DR ING hcF PORSCHE AG 13 Aug 1973 [16 Aug 1972] 38285/73 Heading F2F A two-circuit hydraulic brake system wherein each circuit includes a main line 3 or 4 and wheel brake cylinders 19 or 20 supplied with fluid by a tandem master cylinder 24 has a differential piston arrangement constructed as a pressure amplifier 5 or 6 connected in each mainline, each such device having in the piston a valve 81 which closes or opens the main line in dependence of the pressure drop in the circuit. The valve 8 includes a ball 15 loaded by a spring 30 and normally held off a set 18 by a plunger 11 connected to a cap 10 of the housing. If pressure falls in a circuit the piston is displaced in the direction 31 and the valve closes the throughflow bore 9. Pressure medium flows from a chamber 41 or 42 via a channel 7 or 33 to the other line.
Patent GB-1067798-A (GB)
Title: Oxidative unhairing of hides and skins
Inventor: MILLER FRANZ-FRIEDRICH
IPC: C14C1/06
Filed: 1965-09-08
Abstract: Hides and skins are depilated in an aqueous medium with compounds (e.g. sodium chlorite) which split off chlorine dioxide in the presence of an acid, the acid used being one which does not tan or swell the hides.  The hides may be immersed in a mixture of the solutions of the chlorine dioxide yielding substance and acid or in the solution of the chloride dioxide yielding substance or acid alone before the addition of the other.  The pH of the treating composition may be raised to dissolve the damaged hair or the pH may be adjusted to allow the hides to be tanned. The acid may be produced in the treating medium by adding to the treating medium a salt which gives the desired acid on the addition of an acid or acid salt (e.g. sulphuric, phosphoric, acetic or trichloroacetic acid or potassium or sodium hydrogen sulphate). Suitable non-swelling acids are sulphuric and/or carboxylic acids of the benzene series containing hydroxy, amaino or nitro groups and/or halogen atoms and sulphuric acids of the napthalene series which contain the said substituents (long list of such acids given) and linear polyphosphoric acids.
Patent GB-1192570-A (GB)
Title: Manufacture of Aliphatic Ketones
Inventor: HARGIS CHARLES WESLEY
IPC: B01J23/10
Filed: 1967-08-21
Abstract: 1,192,570. Saturated aliphatic ketones. EASTMAN KODAK CO. 21 Aug., 1967 [19 Aug., 1966], No. 38340/67. Heading C2C. Saturated aliphatic ketones are prepared by passing a gaseous and/or vaporous mixture containing water and a saturated aliphatic aldehyde having from 1 to 8 carbon atoms in the alkyl group thereof or a mixture of such saturated aliphatic aldehydes over a solid catalyst comprising one or more elements having an atomic number from 59 to 71 inclusive each combined with at least one other element at a temperature and for a contact time such that a ketone is formed. The catalyst preferably comprises one or more oxides of the above elements or one or more compounds of the above elements that form oxides of the said elements on heating supported on activated alumina.
Patent GB-1438829-A (GB)
Title: Electrical connector
IPC: H01R4/24
Filed: 1973-08-14
Abstract: 1438829 Attaching conductors to connectors AMP Inc 14 Aug 1973 [22 Aug 1972] 38400/73 Heading B3A [Also in Division H2] An electrical connector formed from sheet metal by stamping is folded into an S-shaped cross-section (Fig. 3) forming three opposed plates 22, 24, 26 thus having in registration wire receiving slots 28, 34, 36. Central slot 28 has an insulation cutting edge 16 at its mouth 32 and has a width slightly narrower than the inserted cable to pierce the insulation thereof. A soldering post 20 extends from plate 20, and shorter limbs 46 space the connector from a printed circuit board to which it is conneeted. Wider slots 34, 36 grip the cable insulation and provide strain relief and plates 24, 26 have points 42 to pierce the webbing insulation of tape cable.
Patent GB-1405594-A (GB)
Title: Lighting control circuits
IPC: B60Q1/26
Filed: 1972-08-18
Abstract: 1405594 Vehicle lighting systems BONNELLA SWITCHES Ltd 30 Nov 1972 [30 Nov 1971 18 Aug 1972] 55505/71 and 38616/72 Heading G4Q In a vehicle lighting system comprising one or more lamps which can be illuminated at different levels, an electronic switch means is driven alternately between conducting and non- conducting states, when the lamp(s) are to be lit at less-than-normal intensity, so as to reduce the mean current to the lamp(s), the frequency of alternation being sufficiently high as not to cause flicker of the lamp(s). In one embodiment (Fig. 1) vehicle brake lights 12 are energized by a circuit 16 upon closure of a brake switch 15. The circuit includes transistor T1 which, normally, is fully conducting so as to provide full-intensity illumination of the lamps during daylight. For dimmed illumination of the lamps at night, the transistor is caused to alternate between its conducting and non-conducting states by highfrequency pulses derived from a four-input Schmitt-triggered positive NAND-gate ICIA and a buffer/driver circuit IC2A. These circuits are enabled when a vehicle headlamp/sidelight switch 25 is closed. The alternation frequency is dependent upon the values of resistors R1, R2 and capacitor C1. Where, during daylight usage, the voltage drop across transistor T1 causes some unacceptable lessening of the intensity of illumination of the lamps, a short-circuiting switch 30 can be provided. This is operated by a relay coil 31 so as to be open when the switch 25 is closed. Rear LH and RH turn-indicating lamps 13, 14 controlled by a thermal flasher circuit 17 and direction-indicator switch 18 may have their intensities reduced at night by means of voltagedropping resistors. However, as shown, similar electronic switching to that described for the brake lamps is provided by means of separate transistors T2, T3 for each lamp. As previously described, short-circuiting switches 32, 33 are included, to be operated by coil 31. A further transistor T4 operates to maintain tne flash rate of the flasher circuit 17 when the transistors T2, T3 are being switched to cause dimming of the lamps 13, 14. In another embodiment (Fig. 2) a transistorized flasher circuit 35 is provided. Furthermore, a pair of gauged, normally-open contacts 40 is provided in the supply from the circuit 35; when closed, these contacts cause all turn-indicating lamps to flash simultaneously as a hazard warning. In modifications (Figs. 3 and 4, not shown) the separate transistors for the rear turn-indicating lamps are replaced by a single, common transistor and drive, the transistor being connected in the return current path from the lamps.
Patent GB-931919-A (GB)
Title: Polymers and interpolymers of vinyl sulphur pentafluoride
Inventor: RAY NEIL HUNTER
IPC: C08F28/00
Filed: 1960-11-11
Abstract: Polymers containing the repeating group <FORM:0931919/IV(a)/1> where m and n are integers and n may be zero are prepared by heating vinyl sulphur pentafluoride alone or with ethylene in the presence of a free-radical-producing catalyst chosen from organic peroxides and azo esters.  The proportion of ethylene may be from 0 to 10,000 moles per cent.  The temperature of the reaction is preferably from 50 DEG  to 200 DEG C. and the reaction may be carried out under an elevated pressure, e.g. from 20 to 1,500 atmospheres. Catalysts specified are tertiary butyl peroxide and diisopropylazobisisobutyrate.  In the Provisional Specification polymers of the general formula <F\1> where m, n, x are integers and x > m or n, and n may be zero and R may be a hydrogen, chlorine or bromine atom, or a phenyl, carboxyl, carbethoxyl or cyanide group, are made by heating vinyl sulphur pentafluoride with a vinyl monomer CH2=CHR in the presence of the above catalyst.  Polymers of vinyl sulphur pentafluoride alone are usually liquid.
Patent GB-1017764-A (GB)
Title: Improvements in or relating to chains
IPC: F16G13/07
Filed: 1962-10-15
Abstract: 1,017,764. Conveyer chains. W. E. LANHAM. Oct. 15, 1962 [Oct. 24, 1961], No. 38939/62. Heading B8A. The links of a chain comprise integral, e.g. injection moulded, structures of a resilient material such as nylon and each consists of a bush 14 and side plates 15, 16. Separate pivot pins 24, Fig. 3, are entered in the bushes and the side plates are sprung apart as shown in Fig. 5 during assembly. The pins 24 taper towards their ends so that the pins can rock in their bushes and thus allow lateral flexure of the chain. A pair of such chains may be connected by rods 36, Fig. 12, to form a conveyer. The rods either fit apertures 47 in upstanding portions of the side plates or may be fitted into borings made in the pivot pins.
Patent GB-925114-A (GB)
Title: Process for the manufacture of sulphur dyestuffs
IPC: C09B49/12
Filed: 1961-10-31
Abstract: Sulphur dyes are made by treating with a sulphurizing agent in the presence of a copper compound and at a raised temperature, a compound which in its non-ionized form has the formula:- <FORM:0925114/IV(a)/1> in which Y is hydroxy or halogen and Z is a -CO- or -SO2- group.  Sulphurizing agents mentioned are elementary sulphur or an alkalimetal polysulphide obtained by melting sulphur with an alkali metal sulphide if desired in the presence of an alkali-metal hydroxide.  Copper compounds specified are the sulphate and chloride.  Examples are given.  The dyes dye cellulose fibres from a sodium sulphide or hydrosulphite vat in olive-green shades.
Patent GB-1246598-A (GB)
Title: Bottle closure
IPC: B65D47/12
Filed: 1970-08-13
Abstract: 1,246,598. Bottle closure. BEECHAM GROUP Ltd. 13 Aug., 1970 [14 Aug., 1969], No. 39008/70. Addition to 1,169,250. Heading B8T.  A cap sealed bottle as claimed in Parent Specification 1,169,250 has a neck plug 11 with aperture 12.
Patent GB-1280070-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B73/12
Filed: 1970-08-14
Abstract: 1280070 Thread cutter G M PFAFF AG 14 Aug 1970 [16 Aug 1969] 39166/70 Heading D1G A thread cutting device on a lock stitch sewing-machine having a looptaker 16 rotatable in a horizontal plane, a bobbin housing 19, 20 held from rotation by a finger 22 thereon and having thread outlet 35 below the plane of the upper surface of the bobbin housing, the device comprising a thread catcher 48 co-operating with a cutter 54 and the tip of the catcher being movable between the needle and the retaining finger of the housing. A bearing plate 45 is provided with concentric arcuate grooves 46, 47 which are eccentric of the looptaker, the former groove serving as a guide for the thread catcher 48 provided with a recess forming a barbed hook; the groove 47 receiving a movable arcuate cutter 54 and a thread guide 64. The thread catcher is engaged by a pin 54 and the cutter and guide by a pin 61, the pins being mounted on linkage 72, 74, 76, 80 operated either by mechanism connectible with the main shaft of the machine or, as shown by an electromagnet 78. A spring 69 clamps the looptaker thread to the underside of plate 45. The severing device is operated at the end of the stitched seam. Bobbin cases. The bobbin case is in two parts 19, 20 the lower part 19 providing the retaining finger 22 and a stud (30) for a lifter (31). The upper part provides an arm (37) with an opening 38 for receiving the thread from a guide 40. In another embodiment (Fig. 7 not shown) the tension spring (134) has a cranked end received in a recess (140) which forms a thread guide. Below the stud (130) on the lower part (119) is a rib 137 having an opening (138) constituting a thread guide.
Patent GB-868012-A (GB)
Title: Improvements in or relating to tools for lathes and other machine tools
IPC: B23B27/16
Filed: 1957-12-17
Abstract: 868,012. Tool-holders. GARIH, H. Dec. 17, 1957 [Jan. 8, 1957], No. 39176/57. Class 83 (3). Lathe or like tool has chip - breaking member 4 of hard material arranged underneath and at the tip of a clamping- shoe 3. The latter holds the cutting - tip (highspeed steel, hard metal alloy or ceramic material) on a carrying plate 2 in a recess of the tool body 10. The clamping bolt 5 passes through an elongated hole 3<SP>1</SP> in the shoe 3 so that the shoe and chip-breaker may be adjusted with respect to the cutting-tip by means of a screw 6 engaging threaded parts of the shoe and holder.
Patent GB-864885-A (GB)
Title: Improvements in and relating to quaternary ammonium compounds and the preparation thereof
Inventor: COPP FREDERICK CHARLES
IPC: C07D/
Filed: 1957-12-18
Abstract: The invention comprises compounds of the general formula:  where R is a hydrogen or halogen atom or a methyl or nitro group and A- is an equivalent of an anion of an acid; and the preparation thereof by reacting a secondary amine, containing the two groups other than the N-methyl groups, with an excess of a suitable reactive methyl derivative, or by reacting a tertiary amine, containing any three of the four groups required, with a slight excess of a reactive derivative of the fourth group; followed, if desired, by anion exchange.  The products have anthelmintic properties.  1-Phenoxy-, 1-o-methylphenoxy- and 1-o-chlorophenoxy- 2-(21-thenylamino)- ethane are prepared by treating 1-phenoxy-, 1-o-methyl-phenoxy- and 1-o-chlorophenoxy- 2-bromo-ethane respectively with 2-thenylamine. N-methyl-N-2-phenoxyethyl-N-21-thenylamine is prepared by treating 1-phenoxy-2-bromo-ethane with N-methyl-N-2-thenylamine. 1-o-Chlorophenoxy-2-dimethylaminoethane is prepared by treating 1-o-chlorophenoxy-2-bromo-ethane with dimethyl-amine. 1-Bromo-2-o-fluorophenoxy-ethane is prepared by treating ethylene dibromide with o-fluorophenol.  1-Dimethylamino-2-o-fluoro- and -nitrophenoxy-ethane are prepared by treating 1-bromo-2-o-fluoro- or -nitro-phenoxy-ethane with dimethylamine.
Patent GB-1045195-A (GB)
Title: Preparation of yeast
IPC: C12N1/18
Filed: 1964-09-28
Abstract: Yeast cells are propagated in a sugar-containing nutrient medium comprising an aqueous sugar solution to which there has been added 3-18 parts by weight of a citric acid recovery liquer per part by weight of the sugar.  The liquor is obtained by separating the mycelium and citric acid (as the calcium salt) from a citric acid fermentation liquor.  The nutrient medium may contain (1) a mixture of beet molasses and blackstrap molasses, between 1% and 15% by weight of the beet molasses having been replaced by 1-3 parts by weight of the citric acid recovery liquor per part by weight of the molasses mixture, or (2) a mixture of beet molasses and blackstrap molasses to which there has been added 1.5-9 parts by weight of the citric acid recovery liquor per part by weight of the molasses mixture.  The citric acid recovery liquor may be employed concentrated to 1/15th of its initial volume.
Patent GB-1156752-A (GB)
Title: Strengthening of Metallic Surfaces.
Inventor: LIEBSCHER ERHARD
IPC: B23K11/00
Filed: 1967-08-30
Abstract: 1,156,752. Coating with metals. DRUCKMASCHINENWERKPLANETA VEB. Aug. 30, 1967, No. 39578/67. Heading C7F. The metallic surfaces of sheet gripper elements for printing machines are coated with a metal such as tungsten or a hard metal by electro-spark deposition. The gripper element is made the negative electrode and the coating metal the positive electrode.
Patent GB-1392502-A (GB)
Title: Method of making a striped dichroic filter
IPC: G02B5/20
Filed: 1972-04-06
Abstract: 1392502 Etching OPTICAL COATING LABORATORY Inc 6 April 1972 [19 April 1971] 39654/74 Divided out of 1392501 Heading B6J [Also in Division G2] A striped dichroic filter, e.g. for use with a colour television camera tube, is made by coating one surface of a glass substrate 21 with a photo-resist (31, Fig. 3, not shown); exposing the photo-resist to ultra-violet radiation through a striped mask, with the other surface of the substrate covered with an antihalation coating; removing the unexposed portions to leave photo-resist stripes 31a and recesses 36; baking in vacuum to harden; applying overall, by vacuum evaporation, a red-reflecting coating 38 formed of a plurality of layers of titanium dioxide and quartz to a depth less than the height of the stripes 31a as shown, so that a portion of the sidewalls of the stripes remains exposed; and finally etching away the stripes 31a and superimposed coating, to leave the striped filter of Fig. 7, by immersing the substrate in xylene at 100‹ C. for a period in excess of an hour. Reference is made to an alternative method using a metal lift-off rather than a photo-resist lift-off technique.
Patent GB-866520-A (GB)
Title: Improvements in or relating to connection means for testing electricity supply meters
IPC: G01R1/20
Filed: 1958-12-09
Abstract: 866,520. Testing and calibrating meters. DENIS FERRANTI METERS Ltd., and WOLFENDEN, R. H. Nov. 23, 1959 [Dec. 9, 1958], No. 39691/58. Class 37. In a connecting means for testing electricity supply meters the terminal positions and dimensions of which are known, a group of suitably positioned and dimensioned pins 2, 3, 4 are supported in relation to a back-plate 5 which carries pins 6, 15 for locating a meter with its terminal holes in contact with the pins, and a spring for urging the meter forward from the back, a crank-lever 14, 10 being provided to relieve the spring pressure during the mounting or dismounting of a meter.
Patent GB-1512050-A (GB)
Title: Sterile packaging
IPC: B65D77/22
Filed: 1975-09-29
Abstract: 1512050 Sterile packaging KONINKLIJKE EMBALLAGE INDUSTRIE VAN LEER BV 29 Sept 1975 [1 Oct 1974] 39830/75 Headings B8C and B8K A pack for sterile objects comprises a sheet of synthetic resin 7 folded and welded to sandwich a sheet of paper 12 which is permeable to sterilizing gas but impermeable to microbes, between overlapping perforated areas 10 provided adjacent a pair of opposed edges of the sheet 7.