baber/WOPTO huggingface dataset:
Patent GB-1492956-A (GB)
Title: Device for taking volumetric samples of a flowable substance
IPC: G01F11/12
Filed: 1974-11-18
Abstract: 1492956 Sampling fluent solid materials J ABONNENC 18 Nov 1974 [29 Nov 1973 16 May 1974 17 Oct 1974] 49867/74 Heading B8N A device for sampling fluent solid material comprises a horizontal probe 2, Figs. 3 and 4, whose lateral wall has a longitudinal recess 4 for removal of a predetermined volume of material from a region 8, the probe being mounted to move inside a sleeve 3 coaxial with the probe, and drive means for driving at least the probe axially between a retracted position, Fig. 3, in which the recess 4 is located in a discharge region e.g. a hopper 9, and an extension position, Fig. 4, in which the recess is located in the region 8. Guide means is provided to rotate the probe 2 with respect to the sleeve 3 as it moves between the extension and retraction positions in order that the recess is directed respective upwardly and downwardly in these regions. The sleeve 3 has an aperture 5 which uncovers the recess 4 when the probe is in the retracted position. As shown in Figs. 3 and 4 the sleeve 3 is movable axially with the probe 2 by means of a ram and rotation of the sleeve and probe is caused by lugs 20, 22 engaging helical grooves 19, 21 therein. The sleeve also has notches 23, 24 to enable it to be rotated relative to the probe by a further ram when the probe and sleeve are in their limit positions of axial movement. The sequence of operations is such that from the Fig. 3 position the sleeve 3 is rotated to close recess 4, sleeve 3 and probe 2 are advanced and rotated together, sleeve 3 rotates further to open recess 4 to receive a sample, Fig. 4, sleeve 3 closes recess 4, sleeve and probe retract and rotate, sleeve 3 opens recess 4 to deposit sample in hopper 9. In other embodiments a fixed sleeve 3, Fig. 8a, is provided the probe having a pin 34 which travels along a loop 35 as a ram 119 reciprocates the probe, thus rotating the recess into the desired positions. The sleeve may be made long to prevent sample material passing directly from region 8 to hopper 9 as the probe moves. To prevent crushing of sample material between the edge 45, Fig. 10, of the recess, and the edge 46 of the sleeve 3 these may be made of deformable material. Alternatively a flat is provided on the probe adjacent said edge, or the sleeve is provided with an extension having a bevelled end. To reduce friction a radial space may be provided between the probe and sleeve and be closed by axial and annular gaskets.
Patent GB-1395458-A (GB)
Title: Process for the preparation of the optical antipodes of pantolactone
IPC: C07C59/10
Filed: 1973-10-29
Abstract: 1395458 Optical resolution of D,L-pantolactone JENAPHARM VEB 29 Oct 1973 [4 June 1973] 50169/73 Heading C2C The optical resolution of D,L-pantolactone is effected by converting the latter into D,L- lithium pantoate, resolving this racemic salt by selective crystallization from a polar solvent (e.g. CH 3 OH, C 2 H 5 OH) or by electrostatic separation of the racemic mixture crystallized from a polar solvent and subsequently converting the optically-active forms of lithium pantoate thus produced into optically-active pantolactone. The undesired optically-active form of lithium pantoate obtained as a by-product is preferably dissolved or suspended in a polar solvent (e.g. H 2 O, CH 3 OH, C 2 H 5 OH) and racemized at an elevated temperature (e.g. 120-180 C.) and optionally in the presence of a basic catalyst (e.g. an aliphatic amine or an alkali metal hydroxide or carbonate). The D,L-lithium pantoate is obtained by reacting D,L-pantolactone with a basic lithium compound (e.g. LiOH, Li 2 CO 3 ) in a polar solvent or by the double decomposition of an appropriate pair of salts (e.g. calcium pantoate/lithium oxalate, barium pantoate/lithium sulphate) in an aqueous medium.
Patent GB-1069899-A (GB)
Title: Improvements in glass melting tanks having refractory bricks containing chromium-oxide
IPC: C04B35/42
Filed: 1964-12-09
Abstract: 1,069,899. Glass melting tank furnaces. DEUTSCHE TAFELGLAS A.G. DETAG. Dec. 9, 1964 [Dec. 16, 1963], No. 50206/64. Heading F4B. A glass melting tank furnace has lateral walls formed from refractory bricks 7 which are alumina free but contain chromium oxide with or without zirconium oxide at the level of the meniscus 2 of the glass melt 1, when the tank is in use. A protective curtain of neutral or reducing gas flames 10 from gas feed pipes 12 fed from header 9, is formed along the top surfaces of the bricks 7. In an alternative embodiment, Fig. 1 (not shown), shaped bricks are used to minimize the portion of the chromium oxide containing bricks exposed to corrosion. The remaining parts 6, 11 of the walls are formed from alumina containing refractories which may be adhesively secured to the chromium oxide containing bricks.
Patent GB-1055897-A (GB)
Title: Polymerization of styrene sulfonic acid and salts thereof
Inventor: DERKOOL WILLIAM NICHOLAS VAN
Filed: 1963-12-19
Abstract: Polymers of styrene sulphonic acid and the alkali metal salts thereof are produced by contacting the dry monomers with gaseous oxygen until a partially oxygenated composition is produced which, in the absence of free oxygen, shows a polarogram having a wave amplitude of at least 0.01 microamp. at a half-wave potential of - 0.2 volt /g. of the oxygenated monomers in 50 ml. of supporting electrolyte, the treated monomers are dissolved in water to produce a 3.76-35% solution, free oxygen is removed from this solution which is maintained at a pH of less than 10 in an oxygenfree environment until the desired conversion of monomers to polymers has occurred and then the polymer is separated from the aqueous medium.  The oxygen contacting step may be carried out at 20-70 DEG  C.  The polymer may be separated from the aqueous medium, by precipitation, by addition of iso-propanol.
Patent GB-1442690-A (GB)
Title: Swivel joints for use in loading and unloading fluid substances
IPC: F16L39/00
Filed: 1974-06-21
Abstract: 1442690 Swivel joints K WIESE 21 June 1974 [22 June 1973] 50492/72 Divided out of 1442689 Heading F2G The disclosure of this Specification is the same as that of the parent Specification 1,442,689, but the claims are directed to the construction of the swivel joints.
Patent GB-1449498-A (GB)
Title: Pnejmatic safety tyre for motorcycles
IPC: B60C9/02
Filed: 1973-10-31
Abstract: 1449498 Pneumatic tyres BRIDGESTONE TIRE KK 31 Oct 1973 [13 Nov 1972] 50570/73 Heading B7C A pneumatic tyre for a motorcycle comprises a tread 2, sidewall rubbers 3, a carcass which, as shown, has two plies 6, and annular elastomeric reinforcing strips 5 (Fig. 1A), or 5a (Fig. 1C) having a Shore A hardness of at least 45. Each reinforcing strip (a) has a thick central portion and becomes progressively thinner towards its radially inner and outer edges, (b) extends a distance X, towards the midcircumferential plane, such that X #L/5, and (c) has a maximum thickness, parallel to the tyre axis, of from 3 to 15% of the maximum width of the carcass obtained when the tyre is in use and is under noload conditions. The strips may be on the interior surface of the tyre carcass (as shown), or between the carcass plies (Fig. 1B, not shown). Each sidewall may be provided with a further annular reinforcing strip 5b (Fig. 1C). In a modification of Fig. 1C (Fig. 1D, not shown) the strip 5b abuts the radially outer portion of the bead core. The tyre may additionally be provided with two flippers (9) (Fig. 2B, not shown) and/or chafer strips (8) (Fig. 2A, not shown). The carcass plies may be formed with rayon cords each consisting of two 1260 denier filaments. The flippers (9) may be formed with 35 cords/5 cm., each cord consisting of three 1650 denier rayon filaments and extending in a radial plane. The chafer strips may be formed with steel cords disposed at a cord angle of 45 degrees to a circumferential direction. Each steel cord comprises two filaments of 0À23 mm. diameter, seven filaments of 0À23 mm. diameter twisted around the two filaments, and one filament of 0À15 mm. diameter wound around the seven filaments. The chafer strips each extend to 40 mm. radially outwardly of the radially inner portion of the associated bead core.
Patent GB-1437200-A (GB)
Title: Dual check valve
IPC: A01B63/10
Filed: 1973-06-11
Abstract: 1437200 Valves CATERPILLAR TRACTOR CO 11 June 1973 [21 June 1972] 50679/75 Divided out of 1437199 Heading F2V [Also in Division Fl] A dual check valve comprises a pair of cylindrical cup-shaped members 27, 31 urged apart by a spring 28 so that their closed ends engage seats 29, 32 to close inlet passages 15, 37. Holes 33, 34 connect inlet 37 with the spool 19 when the member 31 is off its seat. In operation, if the pump 12 is not running and the spool 19 is moved to the " lower " position to retract a ram 11, pressure in the reservoir 10 rises. This causes the valve 31 to open to pass fluid from the reservoir to the selector valve through opening 37 and holes 33, 34, thus preventing damage to the reservoir.
Patent GB-1446788-A (GB)
Title: Process for preparing chlorohydroquinone
IPC: C07C39/24
Filed: 1974-11-22
Abstract: 1446788 Preparation of chlorohydroquinone HOECHST AG 22 Nov 1974 [24 Nov 1973] 50741/74 Heading C2C Chlorohydroquinone is prepared by treating a 1-20% by wt. benzene solution of p-benzoquinone with HCl under an HCl pressure of 1-6 atmospheres and at a temperature of 40 to 80 C. for a period of from 1 to 4 hours, and isolating the chlorohydroquinone from the solution.
Patent GB-1098699-A (GB)
Title: Apparatus for wet cleaning dust-laden gases
IPC: B01D47/02
Filed: 1965-12-03
Abstract: 1,098,699. Washing dust-laden gases. SVENSKA FLAKTFABRIKEN A.B. Dec. 3. 1965 [Dec. 3, 1964], No. 51435/65. Heading B1R. In apparatus for cleaning dust-laden gas, the gas to be cleaned enters a cylindrical vessel at 9 is directed by a transverse baffle 8 into the surface of a body of liquid in the base of the vessel, gas and entrained liquid pass between a partition 1 and an adjustable member 12, each extending together with the baffle 8 the full length of the vessel, until deflected downwardly by a curved baffle 13. Cleaned gas passes out of the vessel between further baffles 16 and liquid separating out above the baffle 8 to the base of the vessel through a pipe 15.
Patent GB-1517400-A (GB)
Title: Impeller-type pump
IPC: F04D29/42
Filed: 1975-12-17
Abstract: 1517400 Centrifugal pumps MITSUI MINING & SMELTING CO Ltd and MITSUI KINZOKU ENG SERVICE CO Ltd 17 Dec 1975 51702/75 Heading F1C [Also in Division F2]  A pump suitable for waste water containing abrasive or corrosive material comprises a front casing 22, Fig. 1, with a ceramic portion 29 protected by a first protective member 36 and forming the intake port 33 and one half 32 of the discharge port (55), Fig. 3 (not shown), and a back casing 23 with a ceramic portion 30 protected by a second protective member 42 and forming the other half of discharge port (55), the front and back casings being connected through an elastic packing 48 e.g. of natural rubber to form a pump chamber 26 which contains a ceramic impeller 58. A packing 68 which seals the drive-shaft 65 is disposed within a seal box 67 which forms with back casing 23, a chamber 69 containing an auxiliary impeller 70 for opposing leakage of liquid past impeller shaft 56. The compression of packing 48 is limited by spacers 54. Another embodiment, Fig. 5, has first and second protective members 36A, 42A which may be of cast iron, the first covering the whole outer surface of ceramic portion 29, both members being bonded to the ceramic portions by synthetic elastic resin filler 87, 89. Ceramic elements 42b, 67a are fixed to the inner wall of member 42A and of seal box 67 to protect them from wear and corrosion. The spacers 54 are replaced by abutting projections 90, 91 in the vicinity of connecting bolts 49. The perimeter of chamber 26 may be narrowed by rims 24a, 25a to reduce leakage across packing 48 by reducing the speed of liquid in this region, alternatively a labyrinthine seal may be employed. Impeller 58 is secured to the threaded end 64 of shaft 65 via a metallic connector 62 which may be closed at one end and internally threaded to the shaft, and thermal expansion may be accommodated by the connector having longitudinal slits 99, Fig. 18, filled with elastic or plastics material, the shaft having a groove 105, Fig. 17, and flat regions 104. Instead the connector may be open to allow the shaft end to pass right through to be secured by a threaded nut.
Patent GB-1291433-A (GB)
Title: Construction of concrete slabs
Inventor: WRAIGHT WALLACE
IPC: E04G15/06
Filed: 1968-11-01
Abstract: 1291433 Casting concrete structures ROBINSON BUILDING TECHNIQUES Ltd 30 Oct 1968 [1 Nov 1968] 51832/68 Heading E1W Fluid concrete is cast into direct contact with one or more non-expandible, non-contractable bodies which form generally horizontally extending voids, and which are anchored relative to a surface against which the concrete structure is to be formed, each such body comprising a rigid skeleton framework of transverse formers 3 and longitudinal battens 2 covered by one or more layers 1 of strong sheet material to form a substantially non deformable skin which presents an unbroken surface to the fluid concrete. The sheet material may be fibreboard and may be covered, at least on its external surface with a thermoplastic film coating. The bodies may be anchored either by flexible metal bands 5 which may be of stainless steel at portions 7 emerging from the concrete structure or by hook bolts engaging the projecting hooked ends of bolts embedded in a previously cast and set layer of concrete on which the body is placed, Fig. 5 (not shown). The skin may or may not extend completely around the framework. A plurality of bodies may be arranged in abutment to form a continuous void. The skin may be formed of Kraft board sandwiching chipboard and coated on both sides with polyethylene. The sheets may be flat and pliable to shape, or may be moulded. The skin may be formed from layers which overlap. The invention is applicable to structures formed in situ, or precast for subsequent use in large structures.
Patent GB-1350720-A (GB)
Title: Apparatus for sputtering
IPC: C23C14/28
Filed: 1972-11-14
Abstract: 1350720 Sputtering alloys UNITED AIRCRAFT CORP 14 Nov 1972 [19 Nov 1971] 52462/72 Addition to 1339910 Heading C7F In a process for sputtering an alloy from a molten cathode, as described in Specification 1339910, the substrate is first cleaned by giving it a negative bias. Carbon, alumina or refractory metals may be concurrently sputtered from the solid state.
Patent GB-1362033-A (GB)
Title: Lair and littering box for dogs
IPC: A01K1/035
Filed: 1971-11-12
Abstract: 1362033 Dog lair FARBWERKE HOECHST AG 12 Nov 1971 [2 Dec 1970] 52663/71 Heading A1M A dog lair as shown is made of plastics, e.g. impact resistant thermoplastic PVC, mixtures of PVC with chlorinated polyolefins, polyethylene polypropylene or impact resistant polystyrene. A sloping top surface 3, which may be circular, oval or four sided, has a central drain hole 2. On inverting, the lair may be used as a littering box. The surface 3 may be grooved and/or ridged to provide a drainage system directed to the hole 2.
Patent GB-1168274-A (GB)
Title: Herbicidal Compositions and their use
IPC: A01N43/70
Filed: 1966-11-25
Abstract: 1,168,274. Herbicidal compositions containing triazines. AGRIPAT S.A. 25 Nov., 1966 [26 Nov., 1965], No. 52858/66. Heading A5E. Herbicidal compositions comprise, as active ingredient, 2-methylthio-4-ethylamino-6-tert. butylamino-s-triazine. The compositions may be in the form of water-emulsifiable solutions, water-dispersible powders, dusts, or granulates. The compositions are particularly suitable for weed control in grain fields before emergence of the plants.
Patent GB-1395280-A (GB)
Title: Selective printer power supply arrangement
IPC: H04L13/04
Filed: 1973-11-15
Abstract: 1395280 Teleprinters ITT CREED Ltd 15 Nov 1973 52967/73 Heading H4P A selective printer power supply which avoids the use of a storage capacitor comprises a rectifier, providing from an A.C. supply an unsmoothed output which through a set of switches energizes, in a set pattern, windings of a print head traversing motor. A further set of switches actuates the printing mechanism operated by a control circuit containing a sensor detecting coincidence of a half cycle peak and presence of a character code signal in a store, with a second store holding an energization programme. This is also enabled by the sensor to cause the motor to be accelerated, held in constant motion and decelerated between a zero and peak of an appropriate half cycle. Centre tapped motion windings (108), Fig. 1 (not shown), are energized in a set pattern through switches (113-116) to accelerate, run and decelerate a traverse motor. Peak pulsating voltage on bus-bar 104 is sent by device 301 and if this coincides with input of a determined number of characters into queuing store 303, AND 307 is primed and on recept of a signal through line 308 sets flip-flop 309 to position B which primes AND 311 thus allowing clock pulses from 313 into RIOM store 314. This provides cyclic signals to switches (113-116) to accelerate the motor, after which a signal via lead 319 causes store 303 to present character signals over lead 320, 5-8 in number, to converter 321. If the print head prints dots simultaneously say on a 7 by 5 array, the converter will have 7 output leads. Alternatively dots may be printed in succession in known manner. When the printing has been accomplished, at the next current zero, the signal pattern generator from store 313 is displaced in phase and windings (113-6) are energized in a sequence so that motion is opposed and print head is halted when store 314 through lead 323 resets flip-flop 309. In Fig. 1 a full wave rectifier (103) is used and any half cycle can commence a print sequence. In an alternative arrangement, Fig. 4 (not shown), half wave rectifiers feed positive and negative bus-bars necessitating separate sets of switches (413-416) and (470-473) connected to each, hence a print sequence can only commence with a positive half cycle of mains current.
Patent GB-1507600-A (GB)
Title: Process for the preparation of phenyl indanes
IPC: C07C39/17
Filed: 1976-12-20
Abstract: 1507600 Indanes CIBA-GEIGY AG 20 Dec 1976 [2 Jan 1976] 53067/76 Heading C2C [Also in Division C5] Compounds of the Formula II where R 1  is aryl or C 1 -C 5  alkyl and R 2  is m or p-hydroxyl are prepared by contacting one or more compounds HO-C 6 H 4 CR 1 =CH 2  with 0À05 to 100 wt. per cent (based on the starting material) of H 2 SO 4 , heating the mixture at 25-250‹ C. and isolating the compound II. In an example the dimerization of p-isopropenyl phenol is mentioned.
Patent GB-1494489-A (GB)
Title: Cored wire electrode
IPC: B23K35/368
Filed: 1974-12-10
Abstract: 1494489 Welding by fusion HENRY WIGGIN & CO Ltd 10 Dec 1974 [10 Dec 1973  (2)] 53367/74 Addition to 1397685 Heading B3R The electrode of the parent Specification is modified in that (a) the core graphite content may be 3 up to less than 5% of the core, or (b) the core graphite content may be 3-25% of the core and the core may comprise manganese in an amount more than 15 up to 30% of the core but no more than 7À5% of the total electrode. The Specification includes example electrodes of both the present and the parent inventions, in some of which electrodes the core nickel content is in the form of nickel magnesium alloy and nickel powder.
Patent GB-1191129-A (GB)
Title: Improvements in or relating to Joints and End Seals for Plastics-Insulated High-Voltage Cables
IPC: H02G15/00
Filed: 1967-11-24
Abstract: 1,191,129. Cable Joints and terminations. FELTEN & GUILLEAUME CARLSWERKE A.G. 24 Nov., 1967 [23 March, 1967], No. 53510/67. Heading H2E. The conductors 2 of two high-voltage cables 1 with polyethylene insulation 3 are connected by a metal bush 8 wound with a conducting layer 9 of carbon-filled plastics tape over which is wound a polyethylene tape 10 impregnated with silicone rubber which is hardened in the wrapping and which has similar electrical and thermal properties to the tape and prevents the formation of cavities in the wrapping. The cables 1 also comprise conducting, carbonfilled, plastics layers 5 and 6, metal screws 7 and sheaths 4, the joint comprising a layer 11 and a screen 12 to correspond with cable layers 6 and 7 respectively. The end seal of a cable may be similarly constructed.
Patent GB-1249532-A (GB)
Title: Combination shock-absorber and spring unit
IPC: F16F9/084
Filed: 1969-10-31
Abstract: 1,249,532. Rolling diaphragm gas spring combined with damper. FICHTEL & SACHS A.G. 31 Oct., 1969 [2 Nov., 1968], No. 53519/69. Heading F2S. The invention provides a way of attaching the rolling diaphragm of a gas spring at one end to the tubular housing 2 of the spring and at the other end to the outer tube 4 of an associated damper. The ends of the compressible sleeve which forms the diaphragm and the associated tube wall ends are pushed into one another in concentrically overlapping manner, and a support part 3, 5 is either applied to the exposed side of the compressible sleeve in the overlap region, or embedded in the sleeve (Figs. 7, 8, not shown). Then the pack of layers formed from the tube wall, the compressible sleeve and optionally the support part is deformed in the radial direction by radial widening from the interior outwards. Windows (19, Fig. 4, not shown) may be cut in the support part to facilitate deformation.
Patent GB-1219776-A (GB)
Title: Depth-type filter media and method of making the same
IPC: B22F3/00
Filed: 1968-11-19
Abstract: 1,219,776. Filter. BELL AEROSPACE CORP. 19 Nov., 1968 [19 Jan., 1968], No. 54826/68. Heading D1R. '[Also in Divisions C7 and G1] A filter material is made by heating a wire fibre felt in a non-oxidising atmosphere to a temperature below its melting point but above its annealing point so as to sinter the felt, cooling the felt in a non-oxidising atmosphere and compressing the felt between members, one of which has a controlled resilient load applied thereto to compress the sintered felt to a consistent permeability. The felt can be compressed by passing it through rollers, one of which is spring-loaded against the other, one or more times to produce the desired consistent permeability. The permeability of the felt may be determined by passing fluid through it. A fluid flow meter which registers the permeability may be coupled to the compressing apparatus so as to vary the amount of compression. The fibres may be made from stainless steel, molybdenum, titanium, nickel, or alloys such as bronze. The non oxidising atmosphere may be dry hydrogen.
Patent GB-545396-A (GB)
Abstract: 545,396. Hand knitting-pins. SMITH, C. March 3, 1941, No. 2808. [Class 74 (ii)] A knitting-pin is made from compressed rawhide or skins, or tanned or semi-tanned hide or skins cut to length and then turned or ground to the desired diameter. The pin may be polished and coated with varnish or lacquer.