baber/WOPTO huggingface dataset:
Patent GB-629461-A (GB)
Title: Improvements in adjustable spanners or wrenches
IPC: B25B13/16
Filed: 1947-11-05
Abstract: 629,461. Wrenches. ROBERTS, B., and JAMES, I. Nov. 5, 1947, No. 29550. [Class 61(iii)]  The shank 8 of the pivoted adjustable jaw 6 of a wrench has teeth 13 which engage an internally threaded adjusting nut 19 which embraces the arms 15 of a pivoted member 5 connecting the jaws, shoulders 16 and 18 being provided on the arms 15 for limiting the movement of the nut. The longer arms 15 of the L-shaped cheek pieces 7 of the member 5 are of smaller section than the shorter arms 14 and each is provided with a rib on the inner face to engage with longitudinal grooves 11 on opposite sides of the shank 8. In a modification, the arms of the cheek pieces are connected by cross pieces behind and/or in front of the shank. In a further modification, Fig. 3, the adjustable jaw is replaced by a jaw assembly 26 comprising a U- shaped head 29 the arms of which are connected by a bridge 40 having a rectangular slot 41 in which slides the leg 42 of a loose jaw member 43, the foot 45 of which is engaged by the gripping face 3 of the handle 1.
Patent GB-1111078-A (GB)
Title: Method for manufacturing phosphoric acid and hemihydrate calcium sulphate by the wet process
IPC: C01B25/231
Filed: 1966-07-01
Abstract: In the wet process for the production of phosphoric acid and calcium sulphate hemihydrate, natural phosphates are treated with a mixture of sulphoric and phosphoric acids.  The mash of gypsum (CaSO42H2O) formed is then treated with concentrated sulphuric acid and heated to a temperature between 70 DEG  and 90 DEG  C., other conditions being P2O5 concentration in liquid 15-35% by weight, H2SO4 concentration in liquid 2-25% by weight and rate of flow of gypsum sludge between 0.5 and 1.5 times the volume of the recrystallization tank per hour. CaSO4. 1/2 H2 is precipitated and is filtered off. The phosphoric acid may be extracted before or after the gypsum treatment. The liquid from the hemihydrate separation may be recycled in total or in part to the initial stage of attack on the natural phosphates.
Patent GB-853896-A (GB)
Title: Improvements in or relating to retaining means for fountain pens and the like
IPC: B43K25/02
Filed: 1958-09-16
Abstract: 853,896. Clips. WALLACE, T. L. May 4, 1959 [Sept. 16, 1958], No. 29625/58. Class 44. In means for retaining a fountain pen or the like in a pocket comprising a clip 2 mounted on or attachable to and resiliently constrained towards the pen or the like, the clip has an end protuberance presenting a flat wall portion 2d and a top wall 2a that together form an edge capable of gripping the pocket fabric. As shown, the clip 2 is pivoted on a split ring 3 which partially surrounds a collar 1b formed on a cover 1. A sleeve 4 within the cover retains a spring member 5 which bears at its free end against the clip 2. The cover is closed by a cap 7 screwed or glued to the collar 1b.
Patent GB-333437-A (GB)
Title: Method and machine for extruding metal
IPC: B21C35/04
Filed: 1929-10-01
Abstract: 333,437. Hirsch, Kupferund Messingwerke Akt.-Ges. Oct. 13, 1928, [Convention date]. Circular-saw machines.-A press for extruding metal is provided with means for sawing off the waste end not extruded. A plunger 3 extrudes the billet, in a container 2, through a die 4 mounted on a slide reciprocated by an hydraulic piston 11. During extrusion, the die is locked against the end of the container by a elide 5. After extrusion, the slide is lifted, the die is moved along the extruded rod to the position shown in Fig. 1 and a rotary saw 7, on an hydraulically operated carriage is moved horizontally or vertically to sever the dead end. Further movement of the plunger 3 ejects the dead end from the container.
Patent GB-1004501-A (GB)
Title: Circuit employing transductors for controlling the magnitude of an alternating current
Inventor: ROBINSON THOMAS PHILIP
IPC: G05F1/32
Filed: 1962-08-02
Abstract: 1,004,501. Transformers. STANDARD TELEPHONES & CABLES Ltd. Aug. 2, 1962, No. 29727/62. Heading H1T. [Also in Divisions H2 and H3] To obtain a voltage between two adjacent taps 4, 5, on an autotransformer winding 1 a transductor TA, TB is connected to each tap and controlled oppositely so that when one transductor is unsaturated, the other is saturated which control is effected by means of bias and control windings. The auto excited transductors shown may be replaced by non-auto excited types in which case only one transductor would carry a bias winding. The contacts on the taps are arranged to connect to alternate taps when carrying no current.
Patent GB-796307-A (GB)
Title: Improvements in or relating to the propulsion of water craft
IPC: B63H5/16
Filed: 1956-10-01
Abstract: 796,307. Propelling ships. MACMILLAN, J. H. Oct. 1, 1956, No. 29853/56. Class 114. A water craft comprises a hull 10 formed with a stern and spaced sides 12, 14 in each of which there is formed a tunnel 30 opening into the side, starting forwards of the stern and converging inwardly towards the main axis of the hull whence they extend to the stern on each side of the axis, the inner surface of each tunnel progressively increasing in area above and below the axis of the tunnel from the starting point to the rear end thereof ; rotatable propulsive means, such as a propeller 26, is journalled in the hull and sited contiguous to the rear ends of the tunnels to rotate transversely thereof about an axis in the plane of the tunnel axes and to encompass these axes, the propeller drawing water from the opposite sides of the hull into the tunnels to form water columns that converge and exert a continually increasing pressure against the tunnel sides in front of the propeller to produce a primary propulsive action on the hull, the directed streams producing a secondary propulsive effect by the action of the propeller on them before they intermingle, each of the tunnels being separated from the bottom of the hull to ensure that no water is drawn into them from beneath the bottom. A fin-shaped member 40 level with the keel extends rearwards to isolate the tunnels from the space below the bottom of the craft and provides a mounting for a stem 44, Fig. 3, in which a rudder 42 is detachably mounted. Small propellers may be encircled by an annular nozzle 46 to enclose the propeller, the ends of the tunnels and the space between them. The device may be applied to craft having twin propellers.
Patent GB-986352-A (GB)
Title: Improvements in or relating to soil cultivating implements
IPC: A01B49/02
Filed: 1961-08-18
Abstract: 986,352. Agricultural implements. PATENT CONCERN N.V. Aug. 18, 1961 [Sept. 7, 1960; Nov. 7, 1960; March 17, 1961], No. 29893/61. Heading A1B. A cultivator comprises a frame 3 supported by adjustable ground wheels 130 and an adjustable gang of crumbling discs 140 which are coupled to the wheel assembly by a rod 135 which is adjusted by a crank 138 so that the land wheels and discs are simultaneously adjusted. The cultivator tines 80 are mounted in shafts 29 on which are mounted arms 131 coupled by a rod 132. The rearmost arm is extended and connected to a rod 137 which is adjusted by a crank 41. The implement is arranged to be connected to a tractor three point lifting device.
Patent GB-647332-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B25/08
Filed: 1948-11-18
Abstract: 647,332. Vehicle wheels. DUNLOP RUBBER CO., Ltd., BUTLER, H. J., and PLAYER, E. Nov. 18, 1948, No. 29966. [Class 144 (ii)] A detachable tyre-retaining flange at one side of.a wheel rim, stated to be particularly applicable to aircraft wheels, is formed in arcuate sections 3, having lugs 5 connected by bolts 4, and provided with projections 11 (of rectangular or other cross-section) adapted to engage annular recesses 6 in the rim-base 7. Slots 13 are provided in the flange-parts to take a prising-tool and, to prevent circumferential creep of the flange, a key 12 is fitted between the rim-base and the junction of two of the flange-sections. As shown, the projections 11 and the seating grooves 6 are of increasing width towards the centre-plane of the wheel to facilitate axial assembly of the flange sections. Specification 572,225 is referred to.
Patent GB-820313-A (GB)
Title: Improvements in or relating to indicating devices
IPC: G09F13/34
Filed: 1955-10-20
Abstract: 820,313. Hand operated indicators. HAMPEL, B. Oct. 20, 1955 [Oct. 23, 1954; Nov. 17, 1954], No. 30030/55. Class 118 (1). An indicating-device for displaying symbols or signs comprises a base support 1, Figs. 1 and 2, having lugs 16 for connecting it to a supporting object such as a strap, and a detachable accessory a or b carrying the symbols either on a plate 8 or on rotatable discs 9, 10, the support 1 having slots 19 and holes 19a into which may be received respectively the tongues 24, 25, or pins 28 associated with the accessory and by means of which it is detachably connected to the strap. Figs. 3 and 4 show how the accessories a and b respectively may be attached to a strap A, the symbols being viewed through a transparent block 21. In another embodiment, Fig. 7, the support 1 is dished and held on to a cover 37 attached to a belt or the like surrounding the support, the block 21 containing a rotatable member 30 carrying symbols on its sides. Other embodiments and applications are also described and shown.
Patent GB-1146188-A (GB)
Title: Polymerization of halogen containing olefins
IPC: C08F14/00
Filed: 1966-07-05
Abstract: 1,146,188. Hexafluoropropylene derivatives. MONTECATINI SOC. GENERALE PER L'lNDUSTRIA MINERARIA E CHIMICA. 5 July, 1966 [30 July, 1965], No. 30088/66. Heading C2C. [Also in Divisions C3 and C5] A compound of the formula (C 3 F 6 O 1 . 17 ) n , where n has an average value of about 7 is obtained by treatment of perfluoropropylene with U.V. light at - 30‹ C. It is a highly viscous colourless liquid.
Patent GB-1430511-A (GB)
Title: Method of manufacturing cation exchanger
IPC: B29B11/00
Filed: 1974-07-08
Abstract: 1430511 Heat treatment and sulphonation of waste tyres NITTAN CO Ltd 8 July 1974 [29 Oct 1973] 30088/74 Heading C3E A cation exchanger is manufactured by heattreating chopped, crushed or powdered waste tyre and subsequently sulphonating or chlorosulphonating said waste tyre. The tyre may be crushed and formed into discrete shapes with a binder before or after the heat-treating step. Examples are given in which (a) chopped or crushed waste tyre is heated to a temperature in the range 170‹ to 350‹ C. in air or nitrogen, cooled and reacted with silver sulphate and sulphuric acid, fuming sulphuric acid containing sulphuric anhydride or sulphuric anhydride in dichloroethane; (b) crushed waste tyre is mixed with SBR latex and formed into balls, which are heated to 240‹ C. in nitrogen, cooled and treated with chlorosulphonic acid and (c) crushed waste tyre is heated to 270‹ C. in nitrogen, mixed with a xylene solution of SBR and formed into a film, which is treated with sulphuric anhydride in dichloroethane.
Patent GB-821393-A (GB)
Title: Improvements in devices for the production of symmetric, reproducible slits, particularly for spectrographs
Inventor: KRATZSCH KURT
IPC: G01J3/04
Filed: 1957-09-25
Abstract: 821,393. Optical apparatus. ZEISS JENA, C. VEB. Sept. 25, 1957, No. 30105/57. Addition to 769,476. Class 97(1) The slit forming device of the parent Specification is modified in that a wedge 7 is displaceable to vary the separation of the levers 4, 4<SP>1</SP> and thus the width of the slit 1 defined by jaws 2, 2<SP>1</SP>. Wedge 7 is displaceable along a guide 10 by knurled head 9 and the slit width can be read on a scale 11.
Patent GB-409322-A (GB)
Title: Improvements in guiding vanes for screw fans or the like
IPC: F04D29/54
Filed: 1932-10-27
Abstract: 409,322. Screw fans. MEY, R. DE, 198, Avenue du Roi, and HAVARD, P., 36c, Rue Jourdan, both in Brussels. Oct. 27, 1932, No. 30127. [Class 110 (i).] The inlet edges g of the discharge vanes of a screw fan are sinusoidal in shape, both the peripheral and hub portions approaching a radial direction. The vanes are associated with a screw fan according to Specification 388,991. Specification 409,321 also is referred to.
Patent GB-867631-A (GB)
Title: Improvements relating to electric lampholders
Inventor: GOODIER GEOFFREY THOMAS
IPC: H01R33/22
Filed: 1958-09-22
Abstract: 867,631. Lamp holders. NETTLE ACCESSORIES Ltd. Aug. 31, 1959 [Sept. 22, 1958], No. 30161/58. Class 38 (1). A holder for screw-type lamps comprises a resilient moulding 2, having internal shoulders 3, 4 for locating a rigid insulating plate 5 carrying current contacts, one of which is a threaded metal sleeve 14 receiving the lamp cap, these contacts being connected by bolts 11, 13 to terminals 10, 12. The moulding 2 has a groove 8 for a resilient ring 9 which bears on an inserted lamp bulb to form a watertight joint. A cable is secured in a watertight manner by a clamp round the neck 1 of the moulding which has external ribs 19 and bosses 20 to locate a sleeve carrying a reflector.
Patent GB-490979-A (GB)
Title: Improvements in or relating to the racemization and re-arrangement of optically active ephedrine and pseudo-ephedrine
Filed: 1937-11-04
Abstract: An optically-active ephedrine or pseudoephedrine is racemized by heating with an alkali compound of an alcohol boiling below 168 DEG C. under a pressure of 15 mm.  The treatment may be effected in a solvent, such as a hydrocarbon, or in the molten state. Alcoholates mentioned are those of methyl, ethyl, propyl, butyl, amyl and benzyl alcohols and cyclohexanol.  From the racemic products, the valuable l-ephedrine may be recovered.  Examples are given of the conversion of d-ephedrine and d-pseudo-ephedrine into a racemic mixture of ephedrine and pseudo-ephedrine using sodium methylate and amylate, and the separation of the products as their oxalates.
Patent GB-1441872-A (GB)
Title: Nitrobenzophenones
IPC: A61K31/135
Filed: 1974-07-09
Abstract: 1441872 Nitrobenzophenone derivatives RICHTER GEDEON VEGYESZETI GYAR RT 9 July 1974 [26 July 1973] 30287/74 Heading C2C New pharmacological compounds active in the induction of liner micromosal enzyme and possessing antipyretic activity have the formula where R 1  and R 2  each stand for a saturated or unsaturated aliphatic hydrocarbon group, a saturated or unsaturated cycloaliphatic hydrocarbon group, an aralkyl group or a substituted or unsubstituted aryl group, or R 1  and R 2  together with the attached nitrogen atom form an optionally substituted heterocyclic ring which may also contain an oxygen or a further nitrogen atom; subject to the proviso that if R 1  is methyl then R 2  is other than methyl. The compounds may be made into their acid addition salts or quaternary ammonium salts. They are made by reacting a compound of formula with a secondary amine of formula Pharmaceutical products comprise the compound and the usual carriers and diluents.
Patent GB-1138788-A (GB)
Title: Improvements in magnetohydrodynamic installations
IPC: H02K44/08
Filed: 1967-06-30
Abstract: 1,138,788. Magnetohydrodynamic power plant. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECHANIQUES (ALSTHOM). 30 June. 1967 [30 June, 19661, No. 30395/67. Heading H2A. In an MHD power plant, the combustion chamber supplying hot gases to the MHD duct is fed with the product of -an endothermic chemical reaction, effected in a chemical converter, of a fuel and at least a considerable fraction of the gases emerging from the MHD duct, the combustion chamber also being fed with a superoxygenated combustion medium (e.g., oxygen-enriched air). Fig. 3 shows a plant in which some of the gases bearing the MHD duct 1 pass to a chimney 17 via a boiler 32, a recuperator 34 and a further boiler 36. The remainder of the gases (about 80% of the total) pass at 3 to a chemical converter 5, where they undergo an endothermic reaction with fuel entering at 6. In this reaction the hydrocarbons of the fuel are transformed into carbon monoxide and hydrogen, the heat energy thereby converted into chemical energy amounting to about 35% of the initial chemical energy of the fuel. The resultant drop in temperature from about 2400‹ K. to, say, 1200-1350‹ K. liquefies the seed, which separates from the gases and can largely be recovered at 7. The fuel gases leaving the converter at 8, consisting principally of carbon monoxide, hydrogen and excess carbon dioxide and steam, pass via a boiler 38 and recuperators 40, 41 to a washing tower 11 for the removal of the carbon dioxide and steam at 13 and the rest of the seed at 12. The mixture of carbon monoxide and hydrogen emerging at 14 at a temperature of 300‹ K. passes via a compressor 22 and the recuperators 41, 34, in which it is reheated to 1373‹ K., to be used as fuel in the combustion chamber 2. The combustion of the fuel is supported by oxygen-enriched air which is heated at 42 in the recuperator 40 to 1373‹ K. before entering the combustion chamber 2. A steam turbine 26 driving a alternator 27 is fed with steam raised in the boilers 38, 36, 32. Alternative arrangements of recuperators and boilers are described with reference to Figs. 1 and 2 (not shown). In Fig. 2, the steam is raised in a boiler preceding the chemical converter.
Patent GB-340628-A (GB)
Title: Improvements in or relating to indicating devices for use with automobiles and similar vehicles
IPC: B62D1/04
Filed: 1929-10-08
Abstract: 340,628. Motor vehicle steering indicators. HUGHES, G. W., Field House, Alcester, Warwickshire. Oct. 8, 1929, No. 30438. [Class 79 (v).] An indicating means of the kind adapted to be placed on a steering handwheel so as to indicate the normal or straight - ahead position of the steerable road wheels comprises a sheet metal strap capable of being wrapped around the rim of the steering wheel and looped and secured so as to ensure its being maintained securely in a set position by virtue of the resilience of the metal. In the construction shown the strap 6 has a circular head 6a forming the index proper and is secured on the wheel by passing the body of the strap around the wheel rim 5 and through a slot 6b in the head.
Patent GB-964561-A (GB)
Title: New sulphonamides and process for preparing them
IPC: C07D295/26
Filed: 1962-08-08
Abstract: The invention comprises piperazine sulphonamides of the formula: <FORM:0964561/C1/1> and salts thereof, wherein R is an alkyl group, e.g. CH3, and X is an alkylene radical which may be interrupted by an oxygen atom, e.g. butylene-(1,4), pentylene-(1,5) or 3-oxa-pentylene(1,5), and their preparation by reacting a sulphamic acid halide,disubstituted on the nitrogen atom by an alkylene radical optionally interrupted by oxygen, with a 1-unsubstituted 4-alkyl-piperazine.  Pharmaceutical and veterinary preparations having antiparasitic and anthelmintic activity comprise the above piperazine sulphonamides, or salts thereof, in admixture or conjunction with a carrier. The active compound may suitably be used in the form of its salts with inorganic or organic acids, including acids which themselves have therapeutic activity, such as salicylic, 4-aminosalicylic and nicotinic acids.  The preparations suitably take the form of tablets, dragees, capsules, solutions, suspensions or emulsions for enteral (e.g. oral) or parenteral administration, and may contain preserving, stabilizing, wetting or emulsifying agents, salts for varying the osmotic pressure or buffers. For veterinary use, the preparations may take the form of an additive for animal feed.
Patent GB-1317525-A (GB)
Title: Collection of oil slicks
IPC: B01D17/02
Filed: 1971-06-29
Abstract: 1317525 Removing oil UNIVERSITY OF MELBOURNE 29 June 1971 [29 June 1970] 30444/71 Heading C1C Oil is removed from a substrate, e.g., water sand or shingle by absorbing and/or adsorbing it in or on particulate brown coal (including lignite) or brown coal char. The oil-bearing coal may be subsequently removed from the substrate by mechanical means. The brown coal may be dried prior to use.
Patent GB-1518115-A (GB)
Title: Apparatus and method for reacting an energised gas with a material
IPC: H01L21/302
Filed: 1975-07-22
Abstract: 1518115 Etching LFE CORP 22 July 1975 [2 Aug 1974] 30521/75 Heading B6J [Also in Divisions B3 and H5] A gas discharge material treatment device has a perforated metal shield 19 within an evacuable chamber 1 having gas inlets 4, 16, 18 and an outlet 14, an access aperture with a lid 20, the discharge being produced by means outside the chamber (e.g. by an R.F. field (13À5 MHz) about a coil 22 or between electrodes (not shown) outside the chamber).  The effect of the shield is to restrict the visible discharge or "plasma" to the annular space outside the shield, so that the material being treated, which is within the shield, is affected only by neutral gas atoms or molecules. It is stated that a more uniform chemical conversion is achieved throughout the treatment zone. The device is used to etch away exposed portions of dielectric, semiconductive or conductive layers. The shield may have a protective coating or be electrically charged.
Patent GB-809919-A (GB)
Title: Improvements in or relating to registers
IPC: G06C11/02
Filed: 1956-10-08
Abstract: 809,919. Counting-apparatus; calculating- apparatus. COMPTOMETER CORPORATION. Oct. 8, 1956 [Oct. 25, 1955], No. 30580/56. Class 106 (1). The accumulator of a calculating or similar machine has provision for alignmmnt adjustment between each numeral wheel or element and its actuating means in two step-by-step stages, the steps of the two stages differing, whereby adjustment of the wheel can be made in increments of the difference. The invention is described as applied to a known key-responsive machine wherein a toothed sector 73 is lowered differentially under the control of a column of keys 52 and by means of a wheel 98 on a power-driven shaft 92. Return movement of the sector, under the action of a spring 77, is transmitted to the corresponding numeral wheel 43 of the accumulator by means of gearing 46, 45, 32, 34 and a pinion 36 fast with the numeral wheel. In the known machine, the numeral wheels can be approximately aligned with one another and the reading aperture 44 by changing the tooth engagement of individual pinions 36 with their driving wheels 34, the adjustment increment being the tooth pitch of the pinion 36. The invention provides an additional adjustment of different increment for each wheel whereby an overall adjustment equal to the difference of these increments can be effected. Each pinion 36, Figs. 5 and 6, is secured to the central hub portion 202 of the numeral wheel. The numeral wheel drum 43 itself is separately formed and its base has a central toothed aperture 211 adapted to engage over a gear 209 integral with the hub portion 202, a compression spring 215 holding the base of the drum up to a flange 208 of the hub portion 202 and with the toothed aperture 211 engaging the gear 209. The tooth engagement of the drum relatively to the hub and pinion 36 can, therefore, be changed after shifting the drum axially against the spring 215. The tooth pitch of the gear 209 differs from that of the pinion 36. In the example described, the pinion 36 has 20 teeth whilst the gear 209 has 21 teeth. This provides an overall adjustment increment of under one degree, as against eighteen degrees by means of the pinion 36 alone. Specifications 154,603, [Class 106 (i)], 344,868 and 551,707 are referred to.