baber/WOPTO huggingface dataset:
Patent GB-1405765-A (GB)
Title: Intrauterine contraceptive devices
IPC: A61F6/14
Filed: 1972-11-07
Abstract: 1405765 Intra-uterine contraceptive devices A H ROBINS CO INC 7 Nov 1972 [7 Jan 1972] 51340/72 Heading A5R An intra-uterine contraceptive device 20 is made from a material enabling flexing to conform to the uterine cavity and comprises a ring 22 formed by a nose portion 24 and a tail portion 26 formed by two side portions 28, 30, and a plurality of spaced apart spurs e.g. 76, 78 extending inwardly from the ring. The inner spurs 76, 82 and the inner spurs 80, 86 are inclined respectively on opposite sides of the plane of the ring. The inner spurs 78, 84 lie in the plane of the ring. Webs e.g. 91, 93 are attached to the side portions between adjacent spurs. A thin membrane 32 is attached to the nose and tail portions. Apertures 34 and 36 are formed respectively in the membrane and tail portion. The spurs preferalbly have enlarged terminal ends. The embodiment of Fig 8, (not shown), has inwardly directed spurs (292) having ends 294 shaped as spherical knobs. The ring 22 is of a similar material and shape, and deforms in a similar manner to the ring (22) of Specification 1405762. Outwardly directed spurs e.g. 40, 42 having webs e.g. 56, 58 may be provided similar to those described in Specification 1405763.
Patent GB-1483546-A (GB)
Title: Apparatus for forming shoulder pieces for incorporation in cigarette packets of the hinged lid type
IPC: B31B50/44
Filed: 1974-11-28
Abstract: 1483546 Apparatus for forming shoulder pieces for hinged lid cigarette packets GD SpA 28 Nov 1974 [20 Dec 1973] 51564/74 Heading B8C An apparatus for forming shoulder pieces for incorporation in cigarette packets of the hinged lid type, Fig. 1 (not shown), comprises a first transfer arrangement for transferring shoulder piece blanks from a blank production station to a position above an aperture 38 in a fixed plate 37, and a second transfer arrangement for moving the blanks successively through the aperture 38 to fold them into U-shape and place them in a compartment 46 of an indexable plate 47. The first transfer arrangement comprises a bar 34 mounting blank gripping suction plates 35 and carried by an arm 32 which is attached to an axially oscillatable and vertically reciprocable shaft 23. The second transfer arrangement comprises vertically reciprocable plates 41, 42 between which the blanks are gripped. The bottoms of the compartments 46 each include an aperture through which the reciprocable plate 42 can pass. The fixed plate 47 carries two horizontal blades 39 which act to bend corners (9) Fig. 1 (not shown) of each blank during downward movement of the blank with the first transfer arrangement. The blanks are cut from a web N by a fixed knife 29 and a movable knife 30, on which the blanks are held by suction, at the blank production station. A batch G of cigarettes, wrapped in an inner wrap of lined foil, is inserted in each compartment 46 containing a shoulder piece at a subsequent indexing station of the plate 47.
Patent GB-1335307-A (GB)
Title: Material cooler with recycling of cooling gas
IPC: F27D15/02
Filed: 1971-11-08
Abstract: 1335307 Cooling furnaces charges FULLER CO 8 Nov 1971 [6 Nov 1970] 51754/71 Heading F4B In a grate cooler receiving material from a furnace, the space below the grate is divided into compartments 44, 46, 48, 50, 52, 54, and a hood 35 is arranged to withdraw gases from a mid region 72 above the grate and feed them through heat exchangers 102 to the compartments 48, 50, 52 below the grate, while gases from the cool end region 74 pass through a dust extractor 82 to a compartment 46 below the furnace end region 70. The end compartments 44, 54 are fed with fresh air, and the arrangement is such that some of the fresh air from compartment 54 passes into the region 72 to be recycled through the hood 35, while the gases from the region 70 entering the furnace include air from the compartment 44, gases recycled from the cool region 74 to compartment 46 and gases recycled through the hood 35 and heat exchangers 102 to compartment 48. The ratio between the volume of gas supplied to the furnace, or of fresh air supplied to the cooler, and the total volume of cooling gas can be 1 : 3, and the amount of dust escaping to the atmosphere is reduced.
Patent GB-1269545-A (GB)
Title: Improvements relating to devices for dispensing pastes or liquids
IPC: F04B43/00
Filed: 1969-10-23
Abstract: 1,269,545. Dispensing pumps; telemotors. PERPEDOS A.B. Oct. 23, 1969 [Nov. 8, 1968], No. 51968/69. Headings F1A and F1P. A dispensing pump for liquids or pastes comprises a housing 5 having a passage 6 therethrough, including a valve chamber 8 in which is mounted a valve comprising a pair of interconnected flexible conical flanges 10, 11 of rubber or plastics located by means of a valve plate 13 having axial passages 14 therethrough, a pressure bulb 3 being mounted on the wall of the housing 5, and manually operable to exert a pressure, via a lateral opening 15, in the valve chamber 8 between the flanges 10, 11. This pressure causes the upper flange 10 to seal against the walls of the valve chamber 8, and forces any liquid or paste in the pressure bulb 3 and valve chamber 8 past the lower flange 11 to the outlet 7. Release of the pressure bulb 3 causes the lower flange to seal, and another charge is drawn past the upper flange 10 from a container 1. In a modification, the flanges are formed separately, each having a plate 13 to effect location. In another modification Fig. 7, the pressure bulb 3 is actuated by a pedal which acts through a hydraulic system comprising a pair of identical bulbs 29, located one adjacent the bulb 3, and one in the pedal, inter-connected by a pipe 28. Depressing the pedal forces liquid into the bulb 29 adjacent the pressure bulb 3, depressing the latter to effect the pumping stroke.
Patent GB-1520270-A (GB)
Title: Method of imparting nondurable soil-release and soil-repellency properties to textile materials
IPC: D06M15/277
Filed: 1975-12-19
Abstract: 1520270 Imparting soil release and soil repellency to textiles BASF WYANDOTTE CORP 19 Dec 1975 [23 Dec 1974] 52047/75 Heading DIP  Non-durable soil release and soil repellency properties are imparted to textile material as a result of the simultaneous or sequential deposition thereon of a water-soluble hydrophilic soil-release polymer containing carboxylic acid groups in free or neutralised form and a hydrophobic soil-repellent fluorochemical, the textile material being treated with an alkaline aqueous medium of pH 7.5  to 11 having dissolved therein 0.25 to 4% by weight of the soil release polymer. The medium may also contain 0.05 to 1% by weight of the soil repellent fluorochemical but preferably this is applied to the textile material after it has been contacted by the soilrelease polymer, eg. by adding the fluorochemical to the mixture of textile material and the aqueous medium containing the soil release polymer and the material agitated for 15-20 minutes. The 2 stage process is preferably carried out in a washing machine on washed and rinsed clothing and the clothing dried at room temperature to 250‹F. The soil release polymer may be carboxymethyl cellulose or alginic acid but is preferably an addition polymer or copolymer of acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, cinnamic acid or maleic anhydride, optionally polymerised with methyl vinyl ether, allyl alcohol and homologues containing up to 10 carbon atoms, acrylonitrile or the ester of any of the unsaturated acids listed above with a C 1 -C 8  alcohol, specifically methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl alcohol. Preferably the polymer contains 20 to 100% by weight of the polymerised acid and its molecular weight is 10,000 to 50,000 Examples are given. The exemplified fluorochemical is a polymer of a fluoroalkyl fumarate. It may also be a fluorocarbon or contain fluorocarbon side chains or substituents as specified in various literature references. The alkaline aqueous medium may also contain 0.05-1% of the water soluble chelating agent polyvinylpyrrolidone and oleic acid. NaOH, KOH or NH 4 OH is used to obtain the alkaline pH. Cotton, polyester, blends thereof, nylon, rayon and wool are specified as textile materials.
Patent GB-1272419-A (GB)
Title: A process for the manufacture of blue disperse dyestuffs
IPC: C09B1/516
Filed: 1969-10-27
Abstract: 1,272,419. Preparation of blue disperse dyestuffs. CIBA-GEIGY A.G. 27 Oct., 1969 [30 Oct., 1968; 12 Sept., 1969], No. 52493/69. Heading C4P. Brominated 1,5-dihydroxy-4,8-diamino- or 1,8 - dihydroxy - 4,5 - diamino - anthraquinones are prepared by heating the corresponding 1,5- dibromo - 4,8 - diacylamino- or 1,8 - dihydroxy - 4,5 - diacylamino - anthraquinone with sulphuric acid, optionally containing SO 3 , in presence of boric acid. The products may be further reacted with an alkylating agent. The reaction preferably takes place at 40-200 C. using at least 5 parts sulphuric acid and at least 0À1 part of boric acid per part dibromodiacylaminoanthraquinone. The sulphuric acid preferably contains not more than 40% SO 3 . Alkylation takes place at 100-150 C. by heating with formaldehyde, or formaldehyde releasing agent or an aliphatic alcohol in sulphuric acid. The dyes give blue shades on cellulose acetate, polyamides and polyesters.
Patent GB-1272798-A (GB)
Title: Low temperature methanol synthesis
Inventor: PETERSEN HANS JORGEN STYHR
IPC: C07C29/152
Filed: 1969-10-27
Abstract: 1,272,798. Exothermic gas phase reaction. H. F. A. TOPSOE. 22 Sept., 1970 [27 Oct., 1969], No. 52506/69. Heading B1X. [Also in Division C2] In the low temperature catalytic synthesis of methanol from carbon oxides and hydrogen, the reaction gas is passed through the catalyst beds 5, 6, 7 via heat plenums 8, led out via heat plenums 9 through gas exits 10 and 13 to heat exchangers (not shown) and returned through gas inlets 11 and 14, the sections being separated by gas tight partitions 4 and the gas distribution through the catalyst being controlled by gas redistribution plates 12 and 15, the product gas mixture being finally led out through exit 3. In the process, the heat generated by the reaction is used via the heat exchangers, for steam generation or boiler feed-water preheating.
Patent GB-1268040-A (GB)
Title: Improvements in or relating to monoazo dyestuff mixtures
IPC: C09B29/08
Filed: 1970-11-04
Abstract: 1,268,040. Mixtures of disperse monoazo dyes. MITSUI TOATSU CHEMICALS Inc. 4 Nov., 1970 [5 Nov., 1969 (2); 23 June, 1970], No. 52562/70. Heading C4P. The invention comprises a mixture containing two or more dyes in which each dye is of formula. wherein X is H, Cl, Br, CH 3 , C 2 H 5 , OCH 3 , OC 2 H 5  or CN, R 1  is H, Cl, OCH 3 , OC 2 H 5  or OC 6 H 5 , R 2  is CH 3 , C 2 H 5  or C 6 H 5 , R 3  is H, CH 3 , C 2 H 5 , CH 2 CH 2 CN or CH 2 CH = CH and R 4  is CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 , CH 2 CH=CH 2  or C 6 H 5 , the components of the mixture differing in the choice of at least one of the substituents X or R 4 . The mixtures are prepared by mixing the appropriate dyes or by preparing the dyes by azo coupling using a mixture of diazo or coupling components. The mixtures are used to dye polyester materials in navy blue shades and give a much better build-up than the individual dyes.
Patent GB-1331072-A (GB)
Title: Method and means of optical density measurement of microbial cultures
IPC: G01N21/27
Filed: 1970-11-04
Abstract: 1331072 Optical sample cells INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE and LES ETABS GOURDON SA 4 Nov 1970 [6 Nov 1969] 52564/70 Heading G2J Apparatus, for measuring the optical density of a sample of a microbial culture medium, comprises a measurement chamber 13 provided with a piston ring 21 for clearing its walls in contact with the culture medium, a light source and light receiver 19 and means for sampling the culture, the chamber 13 and ring 21 being part of the sampling means. Desirably the culture is in a vat and is caused to circulate in an aseptic closed system. Entry and exit ports 4, 5 connected by pipe 3 form part of the closed system with an entry port 14 leading off this system to chamber 13. The piston 20, having ring 21 is reciprocated in chamber 13 through air acting on a membrane 27, the downstroke of the piston drawing a culture sample into the chamber whilst the upstroke expels any culture in the sample. The chamber walls are cleaned by the piston ring 21. A programmer starts the measuring operation by activating a pump to get culture circulating in the closed system. Air then causes the piston to reciprocate four full strokes, say. On the last upward stroke when the piston is at the top of the chamber a measuring circuit is activated to take a calibrating reading, the light passing to the receiver through a bore 201 in the piston below ring 21. When the piston reaches the bottom at the subsequent downstroke the pump stops and movement of the piston stops. A predetermined time elapses to allow large particles in the sample now in chamber 13 to settle and bubbles to rise before the measuring circuit is again activated as a density measurement is taken.
Patent GB-1118429-A (GB)
Title: Combined device for turning-over and for locking the coupling system on a reversible or quarter-turn plough
IPC: A01B3/42
Filed: 1966-11-24
Abstract: 1,118,429. Agricultural implements. HUARD-U.C.F. SOC. ANON. DES ANCIENS ETS. HUARD CARRIEREGUYOT FONDEUR ET UNION CHARRUES-FRANCE. 24 Nov., 1966 [24 Nov., 1965], No. 52734/66. Heading A1B. A reversible plough arranged for connection to the three point linkage 1, 2, 3 of a tractor is provided with a rockable yoke 15 provided with notches 18a which engage in notches 22a formed in the end of a latch 21 which is pivoted inside the yoke and to which is pivotally attached the end of a link 24 connected to the plough bodies. The yoke 15 is connected to the tractor upper link 3. The latch 21 is provided with slots 21a so that it can slide on the pivot pin 14 and a spring 26 is mounted on the pivot 14 and the link 24. The yoke 15 is provided with abutments 15a, 15b which co-operate with a stop 19. When the plough is raised on the lift linkage a lever 10 is operated to free the ploughs for rotation. The weight of the plough causes the yoke 15 to rotate in an anti-clockwise direction until the abutment 15b contacts the stop thus moving the link 24 and rotating the ploughs. As shown the spring 26 causes the latch 21 to become disengaged from the yoke 15 and the ploughs continue to rotate by inertia. When the plough is lowered on the linkage the notches 22a in the latch 21 again engage the notches 18a in the yoke 15.
Patent GB-1106672-A (GB)
Title: Thread-controlling devices
Inventor: SNOWDON CHARLES
IPC: D05B47/00
Filed: 1964-12-31
Abstract: 1,106,672. Tensioning apparatus, rollers; sewing machines. INDUSTRIAL RESEARCH & DEVELOPMENTS Ltd. 29 March, 1966 [31 Dec., 1964; 4 Feb., 1965], Nos. 52939/64 and 4809/64. Headings DID and D1G. Thread-controlling means for use, e.g. in sewing machines comprise a rotatable member biased into a locked position in frictional engagement with a body, and fluid pressure means operable to part said member from said body for rotation, the arrangement being such that a thread engaged with said member is prevented from longitudinal movement when said member is locked, and is free to move longitudinally to rotate said member when the latter is parted from said body. As shown, rollers 10, 11 are seated in semicylindrical recesses in blocks 12, 13 biased together by springs 14, whereby the contacting rollers are locked in position to prevent longitudinal movement of thread 17 passing therebetween. If compressed air is applied to passages 15 opening in the base of each recess, the blocks 12, 13 are biased part and the rollers are free to rotate to allow longitudinal movement of the thread. The latter passes between a plunger 20 and an anvil 22, uniform air pressure being applied to plunger 20 for applying uniform tension to the thread. The thread passes to the rollers 10, 11 over a roller 28 carried by a plunger 25 biased outwardly by a spring 26 to draw off thread from a supply 31 when the rollers 10, 11 are locked. When rollers 10, 11 are faced, air pressure is applied via a channel 30 to plunger 25 to move, the latter inwardly to face the thread previously draw off by roller 28. In a modification, Fig. 3, not shown, interengaging rollers (35), (36) are seated in semi-cylindrical recesses in a block (39), the arrangement being such that the rollers are just free to rotate. Channels (40), (41) enter the bases of the recesses holding rollers (35) and (36) respectively. When compressed air is applied to channel (40), roller (36) is frictionally locked against its recess to prevent longitudinal movement of a thread passing between the rollers. When compressed air is applied to channel (41) also, roller (36) is freed and the rollers can rotate to permit longitudinal movement of the thread.
Patent GB-1197959-A (GB)
Title: Improvements in and relating to Wire Crates
Inventor: BENNETT JOHN CAMPBELL
IPC: B65D21/02
Filed: 1967-11-22
Abstract: 1,197,959. Wire crates. O. BENNETT. 12 Nov., 1968 [22 Nov., 1967], No. 53120/67. Heading B8P. In a wire crate comprising upper and a smaller lower rectangular wire frames 10 and 11 respectively welded to vertical wire rods 13 forming the side walls of the crate, the said wire rods are outwardly joggled near the upper ends 15 to form shoulders 14 for the lower frame 11 of a like crate stacked thereon and are embraced by a rectangular intermediate wire frame 16 welded to the rods immediately below the points where they are joggled to prevent bending of the rods at the joggles on stacking of said like crate. Wires of lighter gauge than that forming the frames 10 and 11 are bent to U- shape to form the vertical rods and the bottom of the crate. Further intermediate frames 17 are provided. The crate may be reinforced by wires extending at an angle to the bottom and welded to the sides.
Patent GB-1071990-A (GB)
Title: Portable pneumatic device for shooting-in dowels
Inventor: UNGER KARL
IPC: B27F4/00
Filed: 1965-12-15
Abstract: 1,071,990. Dowling guns. A. BILEK. Dec. 15, 1965, No. 53283/65. Heading F2H. A portable pneumatic dowling gun comprises a piston 2 loaded by a spring to retract a striker pin 3. The gun is also provided with a glue nozzle 15 and an air nozzle 9. In operation, a trigger is squeezed and over the first portion of its stroke an air valve is opened to provide a jet to the nozzle 9 to clean the hole. During the next portion of its stroke, a valve 12 is opened to allow glue to discharge from the nozzle 15 and during the final port in of the stroke air is admitted to act on the rear face of piston 2 to move the striker pin to discharge the dowel. On release of the trigger the parts return to the position shown. The dowels may be fed from a cartridge 21 under gravity or by fluid pressure. A spring-loaded ball or pin may be provided to prevent the dowel falling out of the gun and this spring may be used to close a contact which causes air to act on the cartridge. In a further modification the glue valve is allowed to close after its operation.
Patent GB-1419374-A (GB)
Title: Chromothermic reduction of metal oxides
IPC: C22B34/32
Filed: 1971-11-18
Abstract: 1419374 Removing iron from chromite UNION CORP (UK) Ltd 13 Nov 1972 [18 Nov 1971] 53547/71 Heading C1A [Also in Division C7] Chromite ore is roasted with chromium metal at 700‹ to 1100‹ C. to produce a mixture of iron and chromic oxide all ingredients remaining in the particulate solid state, and the iron being subsequently leached out. The roasting is preferably effected with 17À5 to 20% chromium metal in air or in enclosed silica containers, using briquetted mixtures of chromite ore and metallic chromium as the furnace charge. The product of the roasting is comminuted, and then leached with, e.g. sulphuric acid to remove iron; separation of chromic oxide from other oxides which may have been contained in the ore may be accomplished by wet magnetic separation. The invention is applicable also to beneficiation of ores, where the iron oxide of the chromite may be only partially reduced and then iron leached out to provide a higher Cr/ Fe ratio in the ore.
Patent GB-1215197-A (GB)
Title: Sealing strip for doors
Inventor: ISAMATSU KUNIO
IPC: E06B7/23
Filed: 1968-11-13
Abstract: 1,215,197. Door sealing strips. K. ISAMATSU. 13 Nov., 1968, No. 53762/68. Heading E1J. A resilient door sealing strip comprises a triangular cross-section which consists in integral and continuous relationship, of a flat base part a for securing the strip to a door frame as by a metal strip 2 and pins 3 driven into a wooden jamb 1, a projecting part b extending from only one edge of the base pant and a door contacting part c extending from the projection part b generally towards the other edge of the base part a, the exposed parts of the strip being covered with a pile d. The strip may be mounted in a rebate of, e.g. an aluminium frame and the free end of its door contacting part may terminate in a bulbous bead.
Patent GB-1161435-A (GB)
Title: Improvements in or relating to Valve Stem Retainer Locks
IPC: F01L3/10
Filed: 1966-12-02
Abstract: 1,161,435. Valves. TRW Inc. 2 Dec., 1966 [3 Dec., 1965], No. 54199/66. Heading F2V. A spring seat 22 is secured to the stem 17 of a poppet valve by means of a cotter comprising two parts 24 defining annular beads 44-46 which co-operate with grooves 31-33 in the head of the stem. Each part 24 has an inverted T-shaped slot 41 (Fig. 5) and is split at 42 from the major diameter end thereof to the foot of the slot. Tabs 37a at the bottom of a cylindrical extension 36 of each cotter part retain the latter within the conical bore 27 of the seat and act as stops to limit the upward movement of the parts when the seat-cotter assembly is forced on to the stem. During the assembly, the parts 24 pivot outwardly relative to each other about edge 28. A peripheral groove 40 in the cotter and seat counterbore 29 permit such pivotal movement. The radial depths of the beads and grooves may increase towards the end 34 of the stem. Alternatively the angle between the axis and the conical bottom surface of the groove may increase towards the end 34.
Patent GB-1380195-A (GB)
Title: Cyclohexane derivative
IPC: A23L27/20
Filed: 1972-01-19
Abstract: 1380195 Cyclohexane derivative FIRMENICH SA 19 Jan 1972 [23 June 1971 11 Jan 1972] 54745/73 Divided out of 1380191 Heading C2C The invention comprises 3,5,5-trimethyl-2,3- epoxycyclohexane-1,4-dione. The compound is prepared by epoxidizing 3,5,5-trimethylcyclohex-2-en-1,4-dione with hydrogen peroxide.
Patent GB-549543-A (GB)
Abstract: 549,543. Ticket-issuing machines. BELL PUNCH CO., Ltd. May 22, 1941, No. 8223/42. Convention date, Jan. 7, 1941. Divided out of 549,530. Drawings to Specification. [Class 106 (iii)] A ticket-issuing machine comprises means for feeding a ticket-strip, means for guiding the ticket-strip along guiding means, and means for effecting operation of said feeding means, the last-mentioned means comprising a manually actuatable element, a member engageable and movable by said element upon its movement under manual actuation, and means for disengaging the element from said member upon continued movement of the element after said member reaches operative position so that reengagement may be established only after manual release of the element. The description is identical with that of Specification 549,530, but the claims differ.