baber/WOPTO huggingface dataset:
Patent GB-1240155-A (GB)
Title: Process for manufacturing non-calcined and calcined basic ladle bricks
IPC: C04B35/03
Filed: 1968-09-27
Abstract: 1,240,155. Basic refractories. KYUSHU REFRACTORY CO. Ltd. 27 Sept., 1968 [8 Nov., 1967], No. 46113/68. Heading C1J. Bricks for ladles are made by mixing magnesia clinker and/or dolomite clinker with cordierite chamotte or with a clay mineral which produces cordierite by reaction with part of the magnesia in the basic clinker, compacting the mix with a binder and drying or calcining. Suitable binders are dextrin, lignin sulphonate and tar, the mix can also contain bentonite and sodium silicate.
Patent GB-1260349-A (GB)
Title: Feed apparatus for the firing of ceramic objects
Inventor: VARGA JOSEF
IPC: F27B7/32
Filed: 1969-09-23
Abstract: 1,260,349. Charging ceramic objects. TESLA NARODNI PODNIK. 23 Sept., 1969 [2 Oct., 1968], No. 46789/69. Heading F4B. An apparatus for automatically feeding elongate ceramic objects 1 into and through a kiln 3 provided with one or several rotatable carrier tubes 2, comprises a carriage 6 mounted for reciprocatory movement and provided with one or more push-rods 5 for pushing the ceramic objects through the said tube or tubes, a magazine 4 for storing the objects, and drive means for the carriage arranged so as to impart to the carriage an interrupted cyclic shifting movement during the pushing of each object through the kiln. The drive means comprises an electric motor 14, a gear-box 15, a linkage 16 and a ratchet wheel 17. The wheel 17 is connected through: an electromagnetic clutch (13) to a winch (12), around which is wound a pulling cable (9, Fig. 3). The winch (12) draws the carriage towards the kiln 3, a dropweight 11 returning the carriage.
Patent GB-469339-A (GB)
Abstract: 469,339. Centrifugal dust-separators. AKT.-GES. BROWN, BOVERI, & CIE. Feb. 29, 1936, No. 6176. Convention date, March 1, 1935. [Class 23] [Also in Group XII] In a furnace burning coal dust and supplied with combustion air by a compressor driven by a gas turbine a dust separator is placed in the flues beyond the combustion chamber and the velocity of the gases is utilized to effect the separation of the dust from the gases. As shown in Fig. 1, gases pass from the combustion chamber 1 to a superheater 3 and pass at high velocity from a passage 6 between blades 7 into a helical passage 30 and to a gas turbine 12. Coarser particles of dust are carried away through a pipe 8 while the finer particles pass through slots 9 into the space 10 and are carried away through a pipe 11. Fig. 2a shows a modified form of separator in which the gases enter a cylindrical chamber 14 tangentially from inlets 13. The dust particles are thrown by centrifugal force against the chamber wall and baffle plate 15 and are removed through a channel 16. The gases pass through a cylindrical sieve 17 and enter a discharge pipe 18. The separator may be associated with the gas turbine driving the compressor as shown in Fig. 3a. Gas enters the passage 21 tangentially through the branch 20. Heavy particles pass through the sieve 22 into the space 23 and are discharged at 24. The gases pass between the blades 26 of the turbine. The particles separated from the gases may be returned to the coal dust mill and reground and then again returned to the combustion chamber. When a number of separators are arranged in series to separate particles of different size the coarser particles only are returned to the mill.
Patent GB-1073956-A (GB)
Title: Improvements in or relating to apparatus for folding webs
Inventor: HALLEY ANGUS MURRAY
IPC: B65H45/20
Filed: 1963-11-29
Abstract: 1,073,956. Folding paper. FORMMASTER Ltd. Nov. 23, 1964 [Nov. 29, 1963] No. 47159/ 63. Heading B6H. A. web-folding apparatus for producing zigzag folded stationery comprises a pair of reciprocable blades 10, 11 which blades are spaced from one another in a common plane for passage of a web 7 therebetween and two pairs of freely rotatable rollers-6; 9 defining two nips each coplanar with the plane of movement of the blades and disposed for receiving alternately one or the other of the blades so that the web 7 can be alternately carried by the blades into each of the nips to be nipped and folded thereacross. The blades 10, 11 are articulated to links and levers 18, 25 and 19, 26 respectively and reciprocated by a single lobe cam 22 so that when the cam lobe 24 pivots the lever 26 an edge 11a of the blade 11 engages the web 7 and pushes it into the nip of spring-urged rollers 6, 9 associated with the blade 10, forces the rollers 6, 9 apart, which rollers on withdrawal of the blade 11 nip the web and form a fold thereacross. The web is advanced by draw rollers 8, which are arrested as the cam lobe engages a cam follower 28 on the lever 26. Continued rotation of the cam 22 displaces the blade 10 into operating position (Fig. 3, not shown) to form an obverse fold 31. In another embodiment (not shown) the pairs of rollers may be replaced by pairs of arcuate or inclined plates.
Patent GB-996724-A (GB)
Title: Improvements in and relating to hardenable polyepoxides
IPC: C07D301/28
Filed: 1963-11-29
Abstract: A process for the preparation of hardenable compounds containing glycidyl groups comprises reacting epichlorohydrin and cyanuric acid in the ratio of at least 15 mol. of epichlorohydrin per mol. of cyanuric acid by heating the mixture to 80-200 DEG C. without addition of catalyst and, after the reaction distilling off excess epichlorohydrin and the dichlorohydrin formed.  The reaction products are mixtures of resins which are glycidyl esters of isocyanuric acid. The resins may be cured by organic bases and di- or poly-carboxylic acids and their anhydrides. The products are readily soluble in hot water and less so in cold water.  Their solubility in cold water can be improved by the addition of, for example, acetone, methanol, ethanol or isopropanol.  Specification 888,945 is referred to.
Patent GB-1393929-A (GB)
Title: Production of di-4-chlorophenyl sulphone
IPC: C07C309/86
Filed: 1972-10-16
Abstract: 1393929 Di-4-chlorophenyl sulphone IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Jan 1974 [16 Oct 1972] 47547/72 Heading C2C Di-4-chlorophenylsulphone is prepared by (a) maintaining a reaction mixture containing 4-chlorobenzene sulphonic acid and chlorobenzene at a temperature of 220-260‹ C. and a superatmospheric pressure between 30 and 1100 kN./m.<SP>2</SP>; (b) removing water as vapour continuously as it is formed; and (c) condensing the water vapour and accompanying chlorobenzene vapour, separating them and returning the chlorobenzene to the reaction mixture. The 4-chlorobenzene sulphonic acid may be formed in situ from chlorobenzene and a sulphonating agent, e.g. concentrated sulphuric acid.
Patent GB-1013798-A (GB)
Title: Improvements in or relating to fire-detection circuits
Inventor: ADAMS FRANCIS JOHN
IPC: G08B17/06
Filed: 1962-12-17
Abstract: 1,013,798. Fire alarm systems. PYRENE CO. Ltd. Dec. 17, 1963 [Dec. 17, 1962], No. 47558/62. Addition to 910,920. Heading G4N. In the fire alarm system of the parent Specification the fire detectors are replaced by a temperature-sensitive cable including two conductors which are separated and insulated from each other at normal temperatures by a material whose resistance falls with rise in temperature. Such a cable is described in Specification 1,013,799. The two ends of each conductor 2, 3 may be connected to form each conductor into a loop, zener diodes 14, 15 being included to ensure that the monitoring current flows through the conductors 2, 3, or the load 10 may be connected to one end only, Fig. 1 (not shown). Specification 1,013,797 also is referred to.
Patent GB-1151608-A (GB)
Title: A Method for Determining Vitamin B12
IPC: G01N33/82
Filed: 1967-10-19
Abstract: 1,151,608. Estimation of vitamin B 12 . PHARMACIA AB. 19 Oct., 1967 [21 Oct., 1966], No. 47604/67. Heading B1X. [Also in Division C3] Vitamin B 12  in an aqueous sample is estimated by contacting particles of a water insoluble epichlorhydrin crosslinked dextran derivative which has covalently bound to it the substance "intrinsic factor" (a muco protein from the ventriculus mucous membrane, and which is capable of binding Vitamin B 12 ; see Division C3), with the sample and with a predetermined amount of vitamin B 12 labelled with a radioisotope, and subsequently separating the particles from the sample liquid and measuring the radioactivity o,f the particles and/or of the liquid. Suitably the radioisotope is <SP>58</SP>Co. In the example a 0.05M tris-buffer at pH 7.4 containing NaCl, bovine serum albumin, and sodium azide is used as aqueous medium. The dextran reagent may be supplied in ampoules together with ampoules containing the labelled vitamin B 12 , to make a test pack.
Patent GB-1092224-A (GB)
Title: Semiconductor circuit arrangements
Inventor: SANDBANK CARL PETER
IPC: H03H9/36
Filed: 1965-11-10
Abstract: 1092224 Semi-conductor devices STANDARD TELEPHONES & CABLES Ltd 4 Nov 1966 [10 Nov1965] 47660/65 Headings H3U UN UB U30 U22 U31 U28 U29Y and U29B A semi-conductor circuit arrangement comprises a Piezo-electric semi-conductor material on an insulating substrate with a pair of ohmic electrodes at each end, each pair forming electroacoustic transducing elements and having an applied voltage to cause the mobile carriers to drift between the input and output electrode pairs at about the velocity of sound. In the embodiment a cadmium sulphide layer 3, 1000 to 20,000  thick, is deposited on a quartz substrate 1 with deposited input electrodes 2a, 4a and output electrodes 2b, 4b of indium. The layer may be made more conductive by introduction of donors or by illuminating. If the carriers, by adjustment of the drift voltage source are made to travel slightly faster than the sound waves resulting from electrical input to electrodes 2a, 4a, the device provides an amplified output at electrodes 2b, 4b. In the drift velocity is made to equal the sound velocity the arrangement constitutes a delay line. In normal operation the applied voltages are pulsed and by lengthening the duration of the applied drift voltage with no input signal, the circuit is said to function as an oscillator.
Patent GB-1503300-A (GB)
Title: Schottky barrier diode memory devices
IPC: H01L27/102
Filed: 1976-11-16
Abstract: 1503300 Semiconductor memory device INTERNATIONAL BUSINESS MACHINES CORP 16 Nov 1976 [31 Dec 1975] 47660/76 Heading H1K A semiconductor memory device comprises an electrode 18, Fig. 2, forming a Schottkybarrier contact with an epitaxial layer 13 of one conductivity type, the electrode overlying a region 14 of second conductivity type formed in a surface region of a substrate 11 of said one conductivity type, and an insulating layer 21, 22 around the Schottky-barrier contact overlain by a conductive layer 24 which is insulated from the said electrode, the arrangement being such that when a predetermined voltage is applied across the Schottky barrier, the electrons produced in the avalanche breakdown of the Schottky diode are trapped in the insulating layer. During the above mentioned write operation, the conductive layer 24, typically of doped polysilicon is held at a high positive potential as compared to the electrode 18 and the terminals 30, 33 are at zero potential. During a non-destructive read operation, a substantial current flows from the electrode 18 to the P + diffusion 14 because of the trapped charges forming a depletion region 45 in the epitaxial layer. The insulating layer typically comprises silicon oxide and silicon nitride sublayers and the polysilicon layer 24 is separated from the electrode 18 by a silicon dioxide layer 26. Electrical connection to the P+ region 14 is achieved through a P+ diffused zone and a metal electrode (not shown), whereas the electrical contact 33 is made either at the bottom of the substrate or at the top of the epitaxial layer through an N + diffused region. A member matrix comprising the memory devices formed at the cross-overs of metallized tracks (31a, 31b), and the P+ diffused zones (14a, 14b), Fig. 1 (not shown) is disclosed
Patent GB-1318983-A (GB)
Title: Metal halide battery
IPC: H01M10/36
Filed: 1970-10-08
Abstract: 1318983 Metal halide batteries ZITO CO Inc 8 Oct 1970 [31 Oct 1969] 47929/70 Heading H1B A battery constructed and operating similarly to the battery disclosed in copending application 47928/70 is distinguished from the latter, mainly, in that the copper screens of the cathode and anode are replaced by a perforated carbon sheet consisting of a mass of expanded graphite particles compressed together, the sheet being reinforced on both sides by layers bonded thereto similar to the barrier layer and protective layer of the copending application. The upper end of the carbon sheet is electroplated with zinc and a copper strip is soldered to the zinc for connection to the battey terminal. In a modification, the reinforcement layers are omitted and, instead, the carbon sheet comprises a mixture of carbon particles and a polymeric reinforcing agent.
Patent GB-1039758-A (GB)
Title: Improvements in or relating to continuous mixers
IPC: B29C48/41
Filed: 1962-12-19
Abstract: 1,039,758. Mixing appliances. FARREL CORPORATION. Dec. 19, 1962 [May 15,1962], No. 47977/62. Heading B1C. A continuous discharge mixer primarily for rubber and plastics has a mixing chamber comprising two parallel intersecting cylinders, means for supply of material under pressure, a common discharge orifice for both cylinders and counterrotating Banbury type rotor each having oppositely twisting portions such that the blades exert no resultant axial faces on the material. As shown in Figs. 2 and 3 the apparatus comprises a base 12 supporting a housing 4 carrying two rotors each having a screw portion 39 for supplying the materials under pressure and helical mixing portions 21, 22 of opposite hand with an apex at 23, the two rotors being mirror images. The mixing chamber is formed in a barrel 1 which can be closed on to the rotors by a rack and pinion 17, 18 and locked to the housing 4 by a lock 19, see also Fig. 9 (not shown). The barrel portion has bearings 29, 29a for receiving the ends 28 of the rotors, which have an internal bore and pipe 33 for circulation of a heat exchange medium supplied at 35 and discharged at 36. The chamber has a detachable discharge orifice assembly 52 (see also Fig. 7, not shown) providing a single narrow transverse discharge slot the width of which is adjustable by a hinged wall 58, screw 59 and nut 61. Heat exchange medium also circulates through ducts 64 in the walls of the discharge orifice assembly; and through chambers in the barrel having ribbed surfaces as at 48. Several such heating or cooling chambers are formed along the length of the barrel, each having its own inlet and outlet 45, 46, so that successive portions of the mixing chamber may be held at different temperatures. Solid materials may be fed continuously by vibrating feeders, see Fig. 1 (not shown), the residence time in the mixer being controlled by rate of feed, and pressure by adjustment of the discharge orifice wall 58. Additional liquid materials may be supplied through bores 50 which may also be used for insertion of thermocouples. The discharge slot is centrally placed between the two cylindrical halves of the mixing chamber and the rotors rotate towards it; they may have straight or plateau-like portions adjacent to it to assist discharge. One rotor may rotate faster than the other.
Patent GB-1323719-A (GB)
Title: Instrument for maintaining body cavities in extended condition
IPC: A61M29/00
Filed: 1970-10-09
Abstract: 1323719 Surgical dilator VACUUM-EXTRACTOR AB 9 Oct 1970 [10 April 1970] 48128/70 Heading A5R A surgical dilator comprises two main parts 1 and 2 mutually slidable at their mid-portions 6 and 7, which are curved in the longitudinal direction, in order to adjust the spacing of jaws 3 and 4 at their ends. The mid-portions 6 and 7 are coupled together by means of the protrusion of a button 10 on the portion 6 through a slot in the portion 7. The diameter of the button is enlarged in a stepwise manner from the mid-portion 6 so that a widened portion of the button may lodge in a corresponding widened portion (9a) of the slot 9 and lock the two main parts against relative movement, whereas the narrowest part of the button adjacent the mid-portion 6 has a smaller thickness than that of the slot and allows relative movement of the parts when engaged in the slot. The end (11b) of the slot is further widened to enable the head of the button to be disengaged, thus facilitating dissembly of the parts. Adjustment is effected by means of a hand grip 5 on parts 1 and a thumb grip 8 on part 2.
Patent GB-1361187-A (GB)
Title: Refractory substance
Inventor: SPENCER D R F
IPC: C04B35/03
Filed: 1970-10-09
Abstract: 1361187 Refractory magnesia composition STEETLEY (Mfg) Ltd 8 Oct 1971 [9 Oct 1970] 48176/70 Heading C1A A dead-burned magnesia composition contains at least 95% by weight MgO, less than 0À4% SiO 2 , a weight ratio of CaO : SiO 2  greater than 3 : 1, where CaO is present in an amount greater than (2S+0À3) per cent, S being the weight per cent of SiO 2  and B 2 O 3  in an amount of 0À25S<SP>2</SP> to 0À25%. Fe 2 O 3 , Al 2 O 3 , G 2 O 3  and ZrO 2  may be present, for example at less than 0À4% by weight. Exemplified compositions contain 0À85-1À41% CaO, 0À04-0À3% SiO 2  and 0À02-0À2% B 2 O 3 . The compositions may be obtained from magnesia-containing minerals or synthetic magnesia by purifying and/or adding chrome-, lime- or zirconia-containing materials and/or by modifying the conditions under which magnesia is formed. Synthetic magnesia is formed either by thermal decomposition of MgCl 2  or by alkaline precipitation from bitterns, brine or sea water. The magnesia composition may be made into refractory bricks, blocks, cements, ramming composition, gunning mixes or castables. In examples a series of sea water magnesias are calcined at 600-1000 C. to 0À5-2À2% ignition loss. Impurity levels are adjusted by additions of, e.g. silica, lime, zirconia and chrome. The mixtures are pelletized at 20 t.s.i. and deadburned at 1500-1800 C. Bricks are made from a crushed magnesia batch consisting of 65% particles between 5 and 72 B.S.S. mesh and 35% particles passing a 72 B.S.S. mesh. 4% sulphite lye is added and the mixture moulded at 8 t.s.i. The resulting bricks are fired at 1650-1800 C. over 112 hr.
Patent GB-1319986-A (GB)
Title: Image reproduction device
IPC: G03B27/02
Filed: 1970-10-12
Abstract: 1319986 Contact printing apparatus A.B. DICK Co 12 Oct 1970 [19 Nov 1969] 48311/70 Heading G2A Photographic contact printing apparatus comprises a radiation source 10 partially surrounded by a reflector 16, a transparent tube 12 surrounding the source and reflector, a movable belt (22) in pressure engagement with tube 12, back-up rollers 18, 20 supporting tube 12 for rotation, guides 84, 86 for guiding an original (42) and sensitive sheet (40) between tube 12 and belt (22) so that the sensitive sheet is imagewise exposed, the reflector being angularly adjustable, and the source 10 being adjustably mounted. In the apparatus shown, reflector 16 is mounted on a pair of plates (112) which are in turn mounted on support plates 98 having arcuate slots 106 and 130 so that they are angularly adjustable in 2 planes at right angles. Source 10 is mounted in a pair of spring fasteners (150) supported on plates 112; the fasteners have slots (152), (154) so that the source may be moved at right angles to its longitudinal axis with respect to the reflector, and also rotates with plates 112 when the angle of the reflector is adjusted. The speed of the belt is adjustable for controlling exposure time. When not in use the belt can be moved away from tube 12 by cams 72, (74).  Accurate tracking of the belt so that the master and original travel straight is maintained by cams (176) which engage a surface (174) of adjustment arms (162), (164). There are also provided a spring arm 92 for starting the apparatus when sheets are inserted, and a cooling blower 36.
Patent GB-1021076-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/12
Filed: 1964-12-01
Abstract: 1,021,076. Gas filters. PHILIPS GLOEILAMPENFABRIEKEN N.V. Dec. 1, 1964 [Dec. 4, 1963], No. 48748/64. Heading BIT. [Also in Divisions A4 and F2] The dust bag 25 of a vacuum cleaner (see Division A4) is made of a porous material, such as paper, and provided with a guide piece 22 adapted to engage in guides 20, 21 located in the housing 4 of the cleaner. A hole 24 is formed in the guide piece, which may be of cardboard, pressed paper or synthetic material, in order to allow the connecting end 10 of the suction pipe to enter the bag. A hand hole 27 is also formed in the guide piece to facilitate removal of the bag. A filter bag 5 for surrounding the suction fan 3 is provided.
Patent GB-1120890-A (GB)
Title: Improvements in mechanical handling vehicles
IPC: A01D87/12
Filed: 1966-11-01
Abstract: 1,120,890. Bale and bale stack loading vehicle; stacking. SPERRY RAND CORP. 1 Nov., 1966 [9 May, 1966], No. 48863/66. Headings B8C, B8E and B8H. A vehicle for loading and stacking bales or other articles comprising a receiving bed 26, a transfer bed 28, and a load carrying platform 30 has retaining means in the form of tine units 52 which support the rear of the bale stack during loading, Fig. 7, and co-operate to pick up a stack as a unitary load, Fig. 1. To collect loose bales they are placed two at a time on the bed 26 and then transferred by an hydraulic actuator 34 to the bed 28 until a layer of eight bales has been formed which is then transferred to the platform 30 against the tine unit 52. The unit 52 is resiliently urged towards the bales but is held in stepped positions each time a layer of bales is transferred forcing back the unit against the resilient means. When a complete stack has been formed on the platform 30 it can be unloaded on to the ground to form a stack by tipping the platform 30 to a vertical position and then with the tines in their rearmost position they can be swung outwards to a disengaged position by an hydraulic cylinder. To load a stack of bales as a unit the vehicle with the platform 30 verticle, Fig. 1, is backed towards a stack with the tines 52 swung outwards. When in position the tines are drawn inwards under the stack and the transfer bed, with retractable spikes 39 extended, is clamped on top of the stack by the bed controller 42 whereupon the platform 30 is returned to the horizontal load carrying position.
Patent GB-1065004-A (GB)
Title: Nematocides
Inventor: PEACOCK FREDERICK CHARLES
Filed: 1962-12-28
Abstract: A nematocidal composition comprises a dithiooxamide having at least one olefinically unsaturated aliphatic hydrocarbon substituent and a wetting agent and/or a non-phytotoxic diluent. The wetting agent may be non-ionic or anionic.
Patent GB-1354084-A (GB)
Title: Computer system
IPC: G06F12/16
Filed: 1972-10-25
Abstract: 1354084 Logic circuits INTERNATIONAL BUSINESS MACHINES CORP 25 Oct 1972 [17 Dec 1971] 49107/72 Heading H3T [Also in Division G4] A computer system for processing M bit words includes, for each bit, a monolithic circuit module each module having a decoder 60 (Fig. 4), connected to a memory circuit 62 which is connected to logic and control circuitry 64. As described the memories each comprise four latches 82-86, one of which is selected by the decoder 60 to (1) transfer its contents to latch 92 (by priming And gates 74, 75), (2) receive the contents of latch 92 (by priming And gates 69, 71), (3) AND the contents of the selected latch and latch 92 (by priming And gate 75) the result being held in latch 92, (4) OR the contents of the selected latch and latch 92 (by priming And gate 74), the result being held in latch 92 and (5) enter the inverted contents of the selected latch into latch 92 (by priming And gates 73, 76). Hamming error detection and correction techniques are combined with triple modular redundant error correction schemes to reduce errors. As described the modules and error correcting circuitry are mounted on a single substrate (Fig. 1, not shown).