baber/WOPTO huggingface dataset:
Patent GB-1035456-A (GB)
Title: Production of pulp
IPC: D21C3/24
Filed: 1963-10-21
Abstract: 1, 035, 456. Treating wood pulp. DOMTAR Ltd. Oct. 21, 1963 [Oct. 20, 1962], No. 41407/63. Heading D2W. [Also in Division B1] Material such as wood chips or other cellulosic raw materials containing a vaporizable liquid are impregnated with an impregnant in a vaporizable liquid, such as sulphidic alkali liquor, by continuously introducing said materials into said liquid to effect impregnation, continuously removing from the system impregnated material together with vaporizable liquid, continuously evaporating an amount of the liquid left in the system equal to the difference between the total amount of liquid entering the system and the amount leaving the system and removing the so-formed vapour, to prevent accumulation of liquid in the system. As shown in Fig. 1, wood chips are passed from storage bin 10 to presteamer 11 and thence to impregnator 13, cooking tube 15, washer 19 and further washer 22 from which pulp product is obtained. The impregnating liquor is supplied through line 28 to a circulating supply to the impregnator after being preheated by black liquor formed in the process, in heat exchanger 42. The circulating impregnating liquor is heated by high pressure steam in heat exchanger 26 to a temperature such that flashing takes place in the impregnator, and released steam is vented through line 30 under the control of valve 30<SP>1</SP>, so that a constant level L is maintained in the impregnator. By this means optimum impregnation is achieved, irrespective of the amount of water in the chips. The impregnated chips then pass to the cooker 15 to which high pressure steam is admitted through line 16. Black liquor is withdrawn through line 32 and the cooked material passes to counter-current washer 19 which removes further black liquor through line 41 which is combined with that from the cooker and passed through heat exchanger 42 to flasher 43, if desired to oxidation tower 54, and then to concentrators 45, 44 arranged in multiple effect before final discharge through flash tank 58 as concentrated black liquor. High pressure steam in line 30 derived from the impregnation stage is employed to perform this concentration and the process renders hot water available for causticising, and low pressure steam. In the embodiment illustrated in Fig. 2 (not shown), flashing of the impregnating liquor is arranged to take place in a tank externally of the impregnation vessel. Fig. 3 (not shown) shows an alternative washing system in which pulp from cooker 15 passes through a pool of washing liquor and thence to a tank from which it is withdrawn for final washing and dewatering. Washing liquors are recycled.
Patent GB-1112743-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B27/04
Filed: 1965-05-27
Abstract: 1,112,743. Sewing machines. GENERAL AUTOMATED MACHINERY CORPORATION. 27 May, 1965 [15 Feb., 1965], No. 41479/67. Divided out of 1,112,741. Heading D1G. A sewing machine comprises a thread tensioner having a cylinder and piston, threadtensioning discs attached to the cylinder and piston rod, a thread pull-off operative while the discs are separated, and compressed air means for operating the tensioner and pull-off. The tensioner comprises a cylinder 95 containing a piston 95a having a piston rod 95b fixed to the sewing machine frame. A spring 98 biases a disc 95c integral with the cylinder 95 against a disc 95d fixed to the piston rod. Compressed air admitted to the cylinder head via a duct 96 serves to separate the discs 95c, 95d. Thread M from the tensioner passes through the looped ends of rods 79, 80 carried by a block 68 rigid with the piston rod 81 of an air cylinder 82. A spring 85 biases the piston rod outwardly, when block 68 actuates a lever 87 for separating the head 90 of a plunger from a fixed seat 91 against the action of a spring 89. Cylinder 82 is supplied with compressed air via a duct 82a simultaneously with cylinder 95, whereby piston rod 81 moves inwardly to release lever 87 and the thread M is clamped between head 90 and seat 91, while the rods 79, 80 pull off thread through the tensioner.
Patent GB-1197467-A (GB)
Title: Improvements in or relating to a Process for the Production of Substituted 1,4-Dienes
Inventor: KUHLMANN UGINE
IPC: C07C45/69
Filed: 1967-09-13
Abstract: 1,197,467. Preparing substituted 1,4-dienes. UGINE KUHLMANN. 13 Sept., 1967 [14 Sept., 1966], No. 41830/67. Heading C2C. Substituted 1,4-dienes having the Formula I are prepared by pyrolysing a compound of Formula II in which formulµ X is an aldehyde group, or a carboxyl group or derivative thereof, e.g. a nitrile, amide or ester group; R is hydrogen or C 1  to C 4  alkyl; and -D- is a divalent radical derived from a Diels-Alder conjugated diene reactant D. The compounds of Formula II may be prepared by allylating, with a compound of formula wherein Y is halogen or -OH, a compound produced by a Diels-Alder reaction between the diene D and an acrylic compound CH 2  = CH-X.
Patent GB-1180708-A (GB)
Title: Improvements in and relating to Sports Shoes, particularly Track Shoes
IPC: A43B13/26
Filed: 1968-09-03
Abstract: 1,180,708. Boots &c. PUMA-SPORTSCHUHFABRIKEN RUDOLF DASSLER K.G. 3 Sept., 1968 [20 Sept., 1967], No. 41882/68. Heading A3B. A sports shoe e.g. a track shoe, for use on sports fields and running tracks having a roughened plastics material surface, has an outsole of flexible plastics material provided with closely spaced projecting fibres or bristles which improve the non-slip properties of the sole. In a first embodiment (Fig. 2) the fibres or bristles g consist of plastics material or metal The bristles g are formed on a supporting surface f which may extend over the whole sole or may be only in localised areas. The bristles g preferably point to the rear of the shoe. In a modification (Fig. 5) the bristles are formed by thin wire staples i which extend through the sole k.
Patent GB-1353046-A (GB)
Title: Electro photocopying methods and apparatus
IPC: G03G15/05
Filed: 1971-09-10
Abstract: 1353046 Electro-photographic copiers RICOH K K 10 Sept 1971 [7 Oct 1970] 42241/71 Heading G2H A photo-conductively coated, conductive screen 1 is charged at 2, 3 and exposed at 4 to produce an electrostatic latent image thereon, and then charged toner is passed through the screen on to a uniformly charged copy sheet 20 to form a toner image on the sheet corresponding to the latent image on the screen. Sheet 20 may be charged by corona discharge, friction, or electrically biased rollers. As shown, toner carried by a grooved roller 5 is doctored at 28, picked up by a brush 6 and then flicked off by electrically biased wires 8. (For Figure see next page
Patent GB-1464739-A (GB)
Title: Safety closure for bottles and like containers
IPC: B65D41/34
Filed: 1974-09-30
Abstract: 1464739 Safety closures ROBERT FINKE KUNSTSTOFF - SPRITZGUSS - WERK 30 Sept 1974 [26 Oct 1973] 42288/74 Heading B8T A one piece safety closure, of plastics material, is removed by pressing cam followers 5, formed on the internal surface of a peripheral wall portion 1b of a push on cap 1 into engagement with the upper surfaces 6a of cams 6 on the neck 2 of a container and rotating the cap 1 in the same direction as the ascending surfaces of the cams 6. On the base of cap 1 a sealing plug 1c is provided. The peripheral wall 1b also has means for retaining the cap 1 on the neck. These means may be detent projections 3 adapted to engage the annular bead 4 on the neck 2. The upper surfaces 6a of cams 6 may ascend clockwise or anticlockwise or two cams may be joined together to form a single roof-shaped cam (Fig. 2, not shown). The cams or cam followers may be formed as parts of a screwthread. The push on cap 1 may have a pair of incisions or grooves extending, on each side of each cam follower, from the bottom edge of the peripheral wall to the base of the cap which help to reduce the resistance of the cap wall in the vicinity of the cam followers (Figs. 3 and 4, not shown). The tongues formed by the incisions may be provided with an internally thickened wedge-shaped portion tapering towards the edge of the cap base which causes the lower parts of the tongue to be pressed outwards away from the container neck when the cap is fitted. The cap may be formed with a frangible skirt portion, Fig. 5. In this embodiment the detent projections 23 of the push on cap 21 engage on the bead 24 of the container neck 2<SP>11</SP>, Fig. 7. Cam followers 25 bear on an annular surface of a bead 22. Riding surfaces 26a of cams 26 ascend towards the container mouth from the upper surface of bead 22 inwardly of the followers 25. Locking projections 27 on the internal surface of a lower skirt portion which is connected to the cap 21 by webs 29 and separated by incisions 28, engage with the steep flanks of abutment surfaces of sawtooth shaped projections 22a formed on the bead 22. A thickened portion 30 on the internal surface of the frangible portion engages underneath the bead 22.
Patent GB-1172113-A (GB)
Title: Process for Producing Halogenated 5-Nitro-Imidazole Derivatives
IPC: C07D233/92
Filed: 1967-09-18
Abstract: 1,172,113. 5 - Nitroimidazole derivatives. KRKA TOVARNA ZDRAVIL. 18 Sept., 1967 [7 Oct., 1966], No. 42343/67. Heading C2C. 5-Nitroimidazole derivatives of the general formula wherein R is an alkyl radical, A is an alkylene radical and X is a halogen atom, are prepared by halogenation of the corresponding hydroxy compound of the general formula Suitable halogenating agents are phosphorus halides, thionyl halides and oxalyl halides. Reference has been directed by the Comptroller to Specification 1,123,049.
Patent GB-1448617-A (GB)
Title: Telecommunication cables
IPC: H01B11/00
Filed: 1974-10-01
Abstract: 1448617 Filled cables GENERAL CABLE CORP 1 Oct 1974 [1 Oct 1973] 42624/74 Heading H1A A telecommunication cable comprises plastics insulated conductors 14, surrounded by an electrically conductive screen 18, and a waterproof sheath 22, a water impermeable medium 20 consisting of a mixture of petroleum jelly and colloidal silica filling the interstices within the screen. An additional D-shaped screen 16 encloses about half the conductors, a helically lapped binding tape 13 holding all the conductors and the screen 16 together. The petroleum jelly may have a narrow or wide range of molecular weights. The colloidal silica which is produced by a vapour phase process varies between 0À5% and 10% by weight of the mixture and has a typical particle size of 0À007 micron. A tackifier such as butyl rubber may incorporated in the mixture.
Patent GB-1479083-A (GB)
Title: Self-extinguishing resin composition
IPC: C08K3/22
Filed: 1975-10-17
Abstract: 1479083 Self-extinguishing polyolefin compositions MITSUBISHI PETROCHEMICAL CO Ltd 17 Oct 1975 [18 Oct 1974] 42809/75 Heading C3P A composition comprises 25-55 wt. per cent of a thermoplastic resin having a melt index of 0À1-10 g./10 min. and comprising a polyolefin or an olefin-containing polymer and 75-45 wt. per cent of Mg(OH) 2  having a specific surface of 45 m.<SP>2</SP>/g. or less. The olefin polymer can be polyethylene, polypropylene, ethylenepropylene copolymer or ethylene-vinyl acetate copolymer. The composition may also contain fine carbon powder. Preferably, the higher the melt index of the polymer, the higher the surface area of the Mg(OH) 2 .
Patent GB-1000549-A (GB)
Title: Thermoelectric circuits
IPC: H01L35/00
Filed: 1962-11-13
Abstract: 1,000,549. Thermo-electric devices. YORK SHIPLEY Ltd. Nov. 13, 1962 [Nov. 24, 1961], No. 42963/62. Heading H1K. A thermo-electric couple normally supplied with rectified alternating current, for cooling purposes, may be coupled directly to an alternating current supply when it is desired to heat the device. The thermo-couple 23 is in heat-exchange relation with a heat-conducting element 25 on which is placed a container 26 to receive objects to be refrigerated. Uni-directional current, to effect the desired cooling, is obtained from the secondary winding 12 of transformer 10 through rectifiers 15, 16 and a centre-tap lead 17, and ripple is removed by a choke 21. When it is desired to heat the unit, for defrosting, a switch arm 30 is moved from contact 29 to contact 28 so that alternating current, through a further lead 27, is passed directly through the thermocouple. This, acting merely as a resistance, consequently becomes heated. Arcing at the contact 29, which would arise from the inductance of the coil 21, is avoided by a short-circuiting rectifier 22.
Patent GB-1409757-A (GB)
Title: Lubricant metering assembly
IPC: F16N11/04
Filed: 1973-09-13
Abstract: 1409757 Lubricating LUBE SYSTEMS CORP 13 Sept 1973 [10 Oct 1972] 43028/73 Heading F2A A lubricant metering device comprises a lubricant cup 14 positioned within a housing 12 and having a spring-loaded piston assembly 16 which includes a stem 18 movable within a combined stem guide and lubricant passageway 40, the device being characterized by channels 66 in the stem 18 which define a variable restriction in the passageway 40. The cross-sectional area of the restriction increases as the piston 16 moves downwards and thus compensates for the non-uniform flow produced by the varying spring pressure.
Patent GB-1036823-A (GB)
Title: Improvements in or relating to hard faced bars
Inventor: POTTER WILLIAM FRANK
IPC: B30B9/26
Filed: 1963-11-01
Abstract: 1,036,823. Making screw press cage lining bars. ROSE, DOWNS & THOMPSON Ltd. Nov. 2, 1964 [Nov. 1, 1963], No. 43164/63. Heading B3A. [Also in Division B1] A base bar 12 of mild steel, for example, is extruded with flanges 15, 16, has sides 13, 14 of concave section and a layer 21 of hard material, is welded to the surface 17 between the flanges. The bar is ground planar along the planes 22, 23, 24, 25, 27, 28. The shape of the sides 13, 14 allows less material to be removed than if the sides were parallel. The finished bars form the cage lining around the screw of a screw press and each escape channel has a parallel entrance portion leading to a divergent portion 32. In Fig. 2 (not shown) the bases 34 of the bars are narrower in width than the layer 21.
Patent GB-1062934-A (GB)
Title: Process for printing colour negatives
IPC: G03B17/24
Filed: 1963-11-01
Abstract: 1,062,934. Photographic printing apparatus. GEVAERT PHOTO-PRODUCTEN N. V. Nov.1, 1963 [Nov.5, 1962], No.43268/63. Heading G2A. In a projection printer in which a print is being made on to colour film, the film is marked periodically with a mark which can be detected by touch in a dark-room, so that it can be divided up into suitable lengths for processing. Fig. 1 (not shown) illustrates a known type of colour printer, in which the image of a colour negative is projected on to a roll of printing paper traversed step by step from a supply spool to a take-up spool. In modifying this apparatus for printing on to film instead of paper, the guide rollers 35, 36 in the supply magazine 17 (and also the take-up magazine) are moved from their normal positions (full lines) closer to each other (dotted lines), so that they are suitably spaced for guiding 35 mm film. The magazine may be loaded with a roll of film 120 metres long. Periodically (e.g. after every twenty four prints) a notch 38 is punched in the edge of the film 23. This can be done manually by an operator on a warning buzzer being actuated by a mechanical counter, or the notch can itself be punched automatically. The notch is such as can be readily detected by touch in a dark-room, so that the film can then be cut up into separate lengths suitable for processing on frames.
Patent GB-1087033-A (GB)
Title: Water-soluble dyestuffs and process for their manufacture
IPC: C09B5/62
Filed: 1964-10-28
Abstract: The invention comprises water-soluble dyes of the formula <FORM:1087033/C4-C5/1> in which A is the residue of a water-soluble organic dye molecule, Y is one of the bridging members -NR-OC-, -NRO2S-, -NRO2-SCH2 CH2-, -NROCH=CH-, and -NROC-CHR11CHR1-, R is -H or -CH3, R1 and R2 are each -H, -Cl, -COOH, -CN, -NO2, -SO3H or -R111, -OR1, -COOR111, -SO2NR1R11, -SO2R111 or -CONR1R11 or the two R1 may represent a further linkage between carbon atoms C1 and C4, R1 and R11 being H alkyl or aryl and R111 being alkyl or aryl, X is H or halogen and n is an integer from 1 to 5.  The dyes may be from the mono-, dis- or tris-azo, anthraquinone, phthalocyanine, di- and triphenylmethane, nitro, benzacridone, oxazine, dioxazine, indigo, thioindigo, thiazole, acridine, perylenetetracarboxylic acid and naphthothioxanthone dyestuff series.  The dyes may be made by acylating a dyestuff A-(NHR)m, R is -H or -CH3- with 1-5 mols. of a compound <FORM:1087033/C4-C5/2> wherein R1, R2 and X are as above and B is one of the groupings -CO-Hal, -SO2-Hal, -CH2CH2-SO2-Hal, -CH=CH-CO-Hal. or -CHR1-CHR11-CO-Hal, at 0-80 DEG  C. in aqueous, aqueous/organic or organic medium at pH6.5-10 in the presence of an acid-binding agent (Hal being a halogen atom).  A number of cyclobutanes are specified.  The dyes may be employed to dye or print cellulose or protein fibres from alkaline solutions. Examples are given.
Patent GB-1013720-A (GB)
Title: Hair clip
Inventor: THATCHER LEWIS ELLSWORTH
IPC: A45D8/20
Filed: 1964-10-28
Abstract: 1,013,720. Clips. GAYLORD PRODUCTS Inc. Oct. 28, 1964, No. 44042/64. Heading E2B. [Also in Division A4] A hair or curl clip comprises a unitary body 1 pressure-moulded in a synthetic plastic, such as polypropylene, and consisting of hairclamping parts 12, 13, an integral hinge 11, and finger grip parts 16, 17, and a separate metal spring 20 urging the parts 12, 13 into contact. The ends of the spring are inserted in slots 19 and the spring is pre-shaped to lie in contact with the hinge 11. The hair-clamping parts are serrated, may be formed as V-shaped plates and, as shown in Figs. 10, 11, the spring is L-shaped having one limb received in a slot 31 and the other abutting a lug 33, or is formed as an incomplete ring 36 passed through apertures 34, 35 so that the ends engage the hair-clamping parts.
Patent GB-1481079-A (GB)
Title: Multi-step chemical and radiation process for the production of gas
IPC: C01B3/06
Filed: 1974-10-11
Abstract: 1481079 Hydrogen TEXAS GAS TRANSMISSION CORP 11 Oct 1974 [19 Nov 1973] 44071/74 Heading C1A Hydrogen is produced by (1) hydrolysing with the application of heat a Group I or II metal hydroxide (e.g. Ca Br 2 ) to form the metal hydroxide and hydrogen halide, (2) irradiating the hydrogen halide with radiation from a nuclear fusion reaction to produce hydrogen and free halogen; (3) separating the hydrogen; and (4) reacting the free halogen with hydroxide from step (2) to reform the original metal hydroxide. The hydrogen peroxide normally formed in step (4) may be converted to oxygen and water.
Patent GB-1318458-A (GB)
Title: Device for removing part of the metatarsus and the achilles tendon from poultry
IPC: A22C21/06
Filed: 1971-09-22
Abstract: 1318458 Removing feet from poultry carcases STORK AMSTERDAM NV 22 Sept 1971 [28 Sept 1970] 44291/71 Heading A2U Apparatus for removing the metatarsus and the Achilles' tendon from poultry suspended by their feet from shackles 2 on a conveyer 1 which is turned through 90 degrees where it passes over the apparatus comprises a disc 5 coupled by a drive 10 to rotate in synchronism with the conveyer and having metatarsusreceiving recesses 6, a wheel 7 for breaking the metatarsus, an inclined drawing disc 8 driven through a universal joint 9 and having recesses 11 to engage the legs above the joint between the metatarsus and the tibia so that the Achilles' tendon 20 is withdrawn from the joint as the disc rotates, a disc 12 also driven with the discs 8, 5 by a shaft 17 and having legreceiving recesses 13, and fixed arcuate guides 14, 15 whereby the joint between the metatarsus and the tibia is flexed over the edge of the disc 12 to enable the joint to be severed by a cutting disc 18.
Patent GB-1515120-A (GB)
Title: Brake equipment
IPC: F16D59/02
Filed: 1975-10-28
Abstract: 1515120 Combined electrical and mechanical brakes COAL INDUSTRY (PATENTS) Ltd 10 Sept 1976 [28 Oct 1975] 44325/75 Heading F2E Brake apparatus having electrical brake equipment (not shown) and mechanical brake equipment, Fig. 1, includes sensing means (preferably strain gauge devices 20 to 23, Fig. 2, of which only two are shown in Fig. 1) for sensing the effective applied mechanical braking force and comparator means 38, Fig. 2, for deriving a control signal should the sensed force, at operation, be less than a preselected magnitude, the control signal ensuring that the electrical brake equipment is not released unless the sensed effective mechanical braking force is above the preselected magnitude.
Patent GB-1287604-A (GB)
Title: Character reading techniques
IPC: G06V30/182
Filed: 1969-09-09
Abstract: 1287604 Character recognition COGNITRONICS CORP 9 Sept 1969 [9 Sept 1968] 44471/69 Heading G4R A character is read by scanning it to produce binary scan signals representing the presence or absence of character elements at certain predetermined scan positions, the signals being processed to locate those representing character elements defining the exterior and any interior edges of the character, the edge elements being analysed to locate places where the edge direction changes sufficiently to indicate probable presence of a tail, the elements adjacent the tip of the tail being thereafter explored to determine if they are compatible with a true tail. Scan signals from a raster scan of the character, after encoding to reduce bandwidth required, are transmitted to a computer in which the character is reconstituted in a matrix store (which may hold a whole line of characters). The columns of the stored character are scanned one or two at a time and the data processed to detect the inner and outer edges of the character and to determine and store the co-ordinates of points where an edge changes direction, the direction of each edge link (between adjacent matrix points) ending at such a point (of direction change), the number of links between successive such points (of direction change), positions and directions of tails, and number of inner and outer loops in the edges (e.g. "8" has 2 inner and 1 outer). Tails are distinguished from printing imperfections in that a tail must show an edge direction change of 180 degrees in a number of links of 3 plus the ratio of number of black points to half the number of edge points and there must be no significant relative divergence of side slopes (directions). Also, two adjacent "tails" pointing towards one another are taken to imply a printing imperfection (gap). The results of the tail analysis and the numbers of inner and outer loops are used for recognition.
Patent GB-1527405-A (GB)
Title: Motor vehicle braking system
IPC: B60T8/32
Filed: 1976-10-26
Abstract: 1527405 Anti-skid braking systems FIAT SpA 26 Oct 1976 [31 Oct 1975] 44509/76 Heading F2F Valve closure 62 blocks communication between brake pressure line 18 and brake actuator line 36 when, in response to a skid signal, an electrical valve armature 74 is moved to allow auxiliary pressure from line 28 past electrical valve closure 88 into the space 68. The auxiliary fluid flows past a restriction 206 in a spring loaded plunger 203 allowing a slow build up of pressure in space 68 sufficient to create a flow of auxiliary fluid past the lip 71 of the closure so that auxiliary fluid further pressurizes the brake actuator.