baber/WOPTO huggingface dataset:
Patent GB-887348-A (GB)
Title: An improved spin drier
IPC: D06F49/06
Filed: 1959-11-06
Abstract: 887,348. Spin-driers. SCHARPF, O., SCHARPF, E., and SCHARPF, E., [trading as SCHARPE, KOMM.-GES. MASCHINENFABRIK GEB.]. Nov. 6, 1959 [Feb. 9, 1959], No. 37688/59. Class 34(2) The drive shaft 18, Fig. 1, of a vertically mounted spin-drier basket 19 is mounted in bearings 16, 17 which are centred in a wellshaped member 13, depending from the drier floor 11, by an elastic ring-shaped member 14 which is bonded thereto and is elastically compressed when the rotating shaft assumes a non-vertical position due to an unbalanced basket 19. The resultant forces arising from the compression produce a couple which tends to restore the shaft to its central position. The drive pulley 20 is bolted to the end of the shaft., In another drier the elastic ring 26, Fig. 2, is bondedly mounted between a member 25, 28 secured to the floor 11 and a collar 27 mounting radial bearings 32. The member 25, 28 supports a bearing 29 and liquid from the spinning basket 19 is kept off the shaft 30 and bearings by a guard cylinder 39.
Patent GB-1400565-A (GB)
Title: Analogue-to-digital converters
IPC: H03M1/00
Filed: 1972-08-14
Abstract: 1400565 Dual ramp converter SCHLUMBERGER INSTRUMENTS et SYSTMES 14 Aug 1972 [12 Aug 1971] 37761/72 Heading H3H A dual ramp analogue to digital converter having an operational amplifier with integrating capacitor and input resistance has a voltage reference circuit comprising two branches connected to the amplifier input, two series resistances in each branch connecting the branches to two voltage sources of opposite polarity, a Zener diode inverse connected between the resistor junctions in each branch and two switches connected respectively between the two ends of the Zener diode and earth. As shown each branch comprises resistors 25, 22 (or 25<SP>1</SP>, 22<SP>1</SP>) connected at their junctions E, E<SP>1</SP> by reversed biased Zener diode 21. Switches 24, 24<SP>1</SP> which are preferably complementary switching transistors connect points E, E<SP>1</SP> to earth. In operation, after the unknown voltage has been integrated for a predetermined time, one of switches 24<SP>1</SP>, 24 is closed to apply the Zener voltage of opposite polarity to the unknown to the integrator. In another embodiment (Fig. 5) resistors 25, 25<SP>1</SP> may be split into two (26, 27 and 26<SP>1</SP>, 27<SP>1</SP>) with the junction connected to earth by further switches 28, 28<SP>1</SP>. Both switches 24, 28 or 241, 281 are operated together and if R 2 (27)=R 3 (26) the current through the Zener is the same as when all switches are open which improves stability. The potentials of the points E, E<SP>1</SP> may be stabilized during operation by current generators 31, 31<SP>1</SP> which reduce the current through switches 24, 24<SP>1</SP> effectively to zero.
Patent GB-379048-A (GB)
Abstract: 379,048. Signs. MACEY, R., 112, Jameson Avenue, Toronto, Canada. July 7, 1931, No. 19557. [Class 3 (ii).] An arrangement for supplying a neon &c. lamp mounted on a vehicle from a battery comprises an induction coil 2 the primary of which is in parallel with a motor 8 that drives a contact breaker 20 in the primary circuit. The contacts 17, 19 forming the contact breaker are operated by a hexagonal cam 24 on the motor shaft, and are bridged by a condenser 29. A fuse 34 is included in the supply circuit.
Patent GB-331244-A (GB)
Title: Improvements in or relating to cigarette machinery
IPC: A24C5/32
Filed: 1928-12-27
Abstract: 331,244. Molins, W. E. Dec. 27, 1928. Cigarette - making machines. - Cigarettes severed from a continuous rod are received by a conveyer 2 operable to travel faster than the axial speed of the rod and to deliver the cigarettes to a transverse conveyer 4, the point of discharge from the conveyer 2 being dependent on the axial speed of the cigarettes. As shown, the free end of the conveyer 2 dips downward after passing over an adjustable guide 3, and an adjustable deflector plate 5 guides the cigarettes on to the transverse conveyer 4. When the cigarettes are delivered at normal speed, they are discharged from the conveyer 2 at the point when it begins to dip downwards; but when delivered at a lower speed, the cigarettes travel a distance down the sloping portion of the conveyer dependent on the speed, and are deposited at substantially the same point on the conveyer 4. For separating cork-tipped cigarettes into two rows, alternate cigarettes may be removed from the conveyer by means of a rotary vane as described in Specification 272,997, the remaining cigarettes being deposited in the manner above described.
Patent GB-1325048-A (GB)
Title: Hot screen printing machine
IPC: B41L13/04
Filed: 1970-08-10
Abstract: 1325048 Printing apparatus FUJI PHOTO FILM CO Ltd 10 Aug 1970 [11 Aug 1969] 38390/70 Heading B6C [Also in Division H5] A stencil-carrying cylinder 1 has a sheet-form electrical heater 3 in its outer surface, so that ink which is solid at room temperatures may be rendered fluid for printing, and has electrical contacts which connect the heater to an electrical source. The heater 3 may be supported on an insulating layer of polyethylene terephthalate or cellulose triacetate film, or of felt or sponge and may be insulated by a further film. The heater 3 is preferably a film of a heat-resistant polymer mixed with an electrically conductive material such as carbon black, grafted carbon, aluminium powder, silver powder or copper powder, alone or in combination. Alternatively it may be a coating of an electrically conductive material on a polymer or glass cloth base, or may be composed of electrically conductive cloth. The ink used may be applied to the cylinder surface, or may be absorbed in cellulose flock and supported on a sheet.
Patent GB-1254497-A (GB)
Title: Improvements in or relating to soil compressing mechanism
IPC: A01C5/06
Filed: 1969-07-31
Abstract: 1,254,497. Roller. C. VAN DER LELY N.V. 31 July, 1969 [5 Aug., 1968], No. 38552/ 69. Heading A1B. [Also in Division F2] A soil-compressing mechanism comprises a transportable frame 19 caming a roller 13 which comprises a number of relatively movable foil-compressing parts, such as cylinders 22, which are arranged in a radially outermost region of the roller so as to extend longitudinally parallel to the axis of rotation. As shown, a pair of discs 20 rotate on shaft 14 and support a number of transverse rods 21 which serve to retain the cylinders 22. These have a large clearance on rods 21 and the sum of the diameters exceeds the circumference of discs 20. The frame may be supported by a tractor and driven by the p.t.o. in addition to a rotary hoe 2, fertilising means 11 and sowing means 12. Alternative embodiments of the soil compressing parts include separate drums of rollers on the same axis, T- section girders loosely mounted on axles and curved plates separated by toothed discs. In operation the roller is generally horizontal and may make an angle with the direction of travel of between 60 and 90 degrees.
Patent GB-1182670-A (GB)
Title: Improvements relating to tools for digging vertical holes in the ground
Inventor: BARBER THOMAS EDWARD
IPC: E02F3/40
Filed: 1967-08-23
Abstract: 1,182,670. Digging holes in the ground. DOE BUCKETS Ltd. 12 June, 1968 [23 Aug., 1967], No. 38730/67. Heading E1F. A tool for digging vertical holes in the ground comprises a bucket A pivotally mounted on a spade 17 which is adapted to be reciprocated along a rectilinear path, the bucket and spade being power driven and the arrangement being such that the bucket is swingable about its pivotal axis between a position in which a front opening thereof is substantially closed by the spade and a position in which the bucket is swung well clear of the spade. The bucket and the spade are individually detachable from a dipper arm 4 on which they are mounted, and they are operated by hydraulic rams. An injector may be incorporated in the tool, and the tool may be used as a grab or for trenching or ground levelling.
Patent GB-996296-A (GB)
Title: Improvements in or relating to methods of applying a self-adhesive to a floor-covering material
IPC: C09J7/38
Filed: 1961-10-30
Abstract: A self-adhesive composition, suitable for use with floor covering materials, comprises (a) 10% by weight of a solvent-free scale wax carrier, and (b) 90% by weight of a polyisobutylene. The adhesive is suitably applied to the floor covering material by atomizing it in a molten state with a stream of warm air through heated nozzles directly on to the back of the floor covering (see Division B2).
Patent GB-1454588-A (GB)
Title: 7-monochloroacetamido-3-desacetoxy-cephalosporanic acid derivatives their preparation and use
IPC: C07D499/00
Filed: 1974-09-05
Abstract: 1454588 7-Chloroacetamido-3-desacetoxycephalosporanic acid derivatives RHONEPOULENC SA 5 Sept 1974 [6 Sept 1973] 38882/74 Heading C2C The invention comprises compounds of the formula wherein R is an ester radical, e.g. C 1 -C 4  alkyl or benzyl which may be substituted by C 1 -C 4  alkoxy. They may be obtained by (a) heating a compound of the formula in an anhydrous acid medium, or (b) treating a compound of the formula with Zn in acetic acid. 7 - Amino - 3 - desacetoxy - cephalosporanic acid is obtained by hydrolysis or hydrogenolysis of a compound of Formula I to give a compound of the formula  and treating this compound with thiourea in aqueous solution.
Patent GB-813256-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F02D9/00
Filed: 1957-06-05
Abstract: 813,256. Spray carburetters. GENERAL MOTORS CORPORATION. June 5, 1957 [June 14, 1956], No. 38968/58. Divided out of 813,255. Drawings to Specifications. Class 7(3) The subject-matter of this Specification is identical with that as described in Specifications 813,255 and 813,257 but the claims are concerned with the supply of excess fuel by the low-pressure supply pump to the fuel nozzles at starting.
Patent GB-1436305-A (GB)
Title: Contiguous shaped chlorine releasing structure
IPC: C02F1/76
Filed: 1974-09-06
Abstract: 1436305 Chlorine releasing tablets FMC CORP 6 Sept 1974 [10 Sept 1973] 38974/74 Heading A5E Structurally strong, storage stable, contiguous, layered or cored tablets containing physically discrete portions of sodium dichloroisocyanurate dihydrate and trichloroisocyanuric acid are produced by compressing discrete portions of sodium dichloroisocyanurate dihydrate and trichloroisocyanuric acid together at a pressure between 2000 and 25,000 p.s.i. The layered construction, or cored structure in wich the inner core is composed of trichloroisocyanuric acid, enables one tablet to perform the task of both superchlorination, involving the rapidly soluble sodium dichloroisocyanurate, and maintaining the chlorine concentration, in e.g. a swimming pool, at the required level over a long period of time by means of the slowly soluble trichloroisocyanuric acid. It is preferred to produce tablets with a sodium dichloroisocyanurate dihydrate to trichloroisocyanuric acid weight ratio content of 1:1 to 8:1.
Patent GB-1525943-A (GB)
Title: Antifoam compositions and process for the preparation and use thereof
IPC: C08K9/06
Filed: 1975-09-25
Abstract: 1525943 Silicone/treated silica antifoam compositions GENERAL ELECTRIC CO 25 Sept 1975 [12 Nov 1974] 39326/75 Heading C3T An antifoam composition comprises a liquid polydimethylsiloxane and a precipitated silica treated with hexamethydisilazane. Preferably the siloxane is triorganosiloxane-terminated and of viscosity 100-70,000 cS/25‹ C., the silica is of surface area 100-800 m<SP>2</SP>/g. and 1- 15 wt. per cent water content, and the silazane is added to the silica before the siloxane. The silica is preferably 1-40 wt. per cent of the silica/siloxane mixture, and the silazane 1-20 wt. per cent of the silica. The composition may contain conventional dispersants and be emulsified in water. In Examples 1, 3 and 4, 1À5 p.b.w. of hexamethyldisilazane are added to 7À5, 10 and 5À1 p.b.w. of a commercial precipitated silica, which is then heated at 100- 150‹ C. with 92À5, 90 and 94À9 p.b.w. of a trimethylsiloxane - terminated polydimethylsiloxane of 500 cS/25‹ C. In Example 2 the product of Example 1 is emulsified in water.
Patent GB-1393937-A (GB)
Title: Methods for the fabrication of airisolated crossovers
IPC: H05K3/46
Filed: 1972-08-24
Abstract: 1393937 Printed circuits WESTERN ELECTRIC CO Inc 24 Aug 1972 [27 Aug 1971] 39380/72 Heading H1R An air isolated cross-over between first and third conductive tracks, and spanning a second track is manufactured as follows: an adhesive layer 11, e.g. of titanium is deposited upon an insulating substrate 10, followed by a noble metal layer 12, e.g. of palladium, platinum or rhodium, and a copper layer 13; the copper layer is patterned, using photo-resist techniques to expose portions of layer 12 subsequently forming the conductive tracks, and gold 15 is deposited on the said portions followed by an all over deposited layer of copper 16; the layer 16 is covered by another adhesive layer 17 and a photoresist layer 18, and the gold areas on the first and third conductive tracks are exposed; a gold cross-over 19 is plated on the exposed gold areas, and the layer 17 therebetween; finally the material not forming the tracks, and including that beneath the cross-over 19 but not forming the second track is removed by etching to leave an air gap 20. In an alternative embodiment, the copper layer 13 is dispensed with, the photoresist adhering directly to the noble metal layer 12 during deposition of the gold areas 15.
Patent GB-1478387-A (GB)
Title: Process for producing precipitated thickener silica
IPC: A61Q11/00
Filed: 1974-09-10
Abstract: 1478387 Silica containing dentrifrices J M HUBER CORP 10 Sept 1974 [3 Oct 1973] 39403/74 Heading A5B [Also in Division Cl] Precipitated silica with a wet cake moisture of 85% by weight, oil absorption greater than 200 cc/100 gms and surface area of not less than 250 M<SP>2</SP>/g can be used as a gelling and thickening agent in dentifrice or toothpaste compositions. Thickening efficiency of the silicas is measured in typical humectant systems utilised in dentrifrices, viz sorbitol and a sorbitol/glycerol mixture.
Patent GB-1261417-A (GB)
Title: Sectional plant stakes
Inventor: MAYO HARRY WILLIAM
IPC: A01G9/12
Filed: 1969-08-07
Abstract: 1,261,417. Plant support. H. W. MAYO. 21 Oct., 1970 [7 Aug., 1969], No. 39538/69. Heading A1E. A plant support has a main stem comprising screwed-together vertical sections, to which branch sections are screwed as required. The lowest section is pointed at its base for insertion into the ground and the sections have projecting lugs for attaching twine to hold the plant.
Patent GB-1230690-A (GB)
IPC: F16D57/04
Filed: 1969-08-07
Abstract: 1,230,690. Hydrodynamic brakes combined with other brakes; trailer brakes; fluid control. DAIMLER-BENZ A.G. 7 Aug., 1969 [8 Aug., 1968], No. 39565/69. Headings F2E and F2F. In continuous braking apparatus for a commercial vehicle or a tractor-trailer unit, maximum continuous braking retardation is provided by the effects of an engine brake, a controllable retarder and, in the case of a tractortrailer unit, the trailer brakes, and the retardation is controllable in a graduated manner by bringing the braking components into action one after another in dependence on the displacement of the brake lever (pedal or manual). As shown, when pedal 14 is depressed, an electromagnetic clutch 18 is first engaged by the supply of current to it via a contact 31 in a switching device 30, this contact being the first to be encountered on movement of the pedal. The rotor of the hydrodynamic retarder 2 thus begins to be driven by the vehicle engine through flywheel 12 and gearing. Next, a valve 15 is actuated to open a relay valve 16 whereby compressed air from a reservoir 8 forces oil from a reservoir 13 into the retarder casing. Braking thus commences and proceeds linearly as the filling of the retarder proceeds. Before filling of the retarder is complete, contact 32 is encountered, whereupon solenoid 28 is energized at a low voltage (e.g. 12 volts) to urge plunger 27 of valve 26 to the left until the extremity of the valve makes contact with a spring-loaded stop 29. In this position a compressed air reservoir 22 on the trailer is connected via a pressure limiter 24, limiting the pressure to, e.g., 0À3 atmosphere, to the brake cylinders 23 of the trailer brakes 3. Next, contact 33 is encountered, whereby solenoid valve 9 is energized to admit compressed air to a piston 6 to close butterfly valve 5 in an exhaust pipe elbow 4 constituting an engine brake 1. At the beginning of this stage filling of the retarder 2 is completed, and its braking effect reaches maximum value. Finally, contact 34 is encountered, whereupon the full voltage (e.g. 24 volts) is applied to solenoid 28. Plunger 27 is thereby moved further to the left, overcoming the force of spring 29, pressure limiter 24 is disconnected, and pressure limiter 25, which permits the pressure to rise to, e.g., 0À6 atmosphere, is interposed between reservoir 22 and trailer brake cylinders 23. On release of pedal 14 braking is relieved in reverse sequence. When the pedal is fully released, retarder 2 empties itself by centrifugal force.
Patent GB-838851-A (GB)
Title: Improvements in or relating to the treatment of hydrated zinc oxide
Inventor: FURNESS WALTER
IPC: C01G9/02
Filed: 1956-12-31
Abstract: Impure hydrated zinc oxide obtained by precipitation from a zinc salt solution with an alkali metal hydroxide or ammonia is treated with a solution of a salt of ammonia or an organic nitrogen base having a dissociation constant not greater than that of di-(n-butyl)-amine at 25 DEG  C. and not less than that of quinoline at 15 DEG  C.; the intermediate thus formed may be calcined at 950-980 DEG  C. to give a pigment quality zinc oxide.  Specified zinc salts for initial precipitation are zinc sulphate, and zinc dithionate and/or bisulphite; sodium hydroxide is the preferred precipitant.  The resultant oxide will generally have a constitution corresponding to the formula ZnO.Zn(OH)2. Specified organic bases are methylamine, trimethylamine, ethylamine, diethylamine, ethylene diamine, triethanolamine, di-(n-butyl)-amine, benzylamine, pyridine, amino-pyridines (e.g. 2-amino pyridine), picolines (e.g. 4-picoline), lutidines (e.g. 2 : 4-lutidine) and quinoline.  The preferred salt is ammonium sulphate (which produces an intermediate containing the following parts by weight of the constituents: ZnO, 100; SO3, 10-15; NH3, 2-6; water, at least 15) but the chloride or other salts may be employed; when employing a salt of the organic base, a suitable solution may be obtained by dissolving the free base in an equivalent quantity of dilute mineral acid, and, if desired, ammonia may be added to the resultant solution.  The treatment may be performed by mixing a suspension of the hydrated zinc oxide with the solution of the salt and stirring for a period of at least an hour at 15 DEG  C.; where alkali metal ions are used in the precipitation of the hydrated zinc oxide, it may be desirable to heat the mixture at up to 90 DEG C. under reflux before finishing the treatment at a lower temperature.  This intermediate product is more highly hydrated than the original oxide and results in a calcined product of reduced bulk density.  After filtration, the intermediate in the form of a filter cake should then be dried at as low a temperature and as short a time as possible, e.g. a temperature of 50 DEG  C. may be maintained for up to 16 hours under reduced pressure.  The product can then be fed to a calciner operated at 980 DEG  C. and calcined for 15-25 minutes. The Provisional Specification is not restricted to the treatment of hydrated zinc oxide but includes the treatment of substantially waterinsoluble oxides, hydroxides and carbonates (including basic carbonates) such as those of calcium, magnesium, copper, nickel and cobalt, and zinc oxide and hydroxide.
Patent GB-346030-A (GB)
Title: Improvements in gas piping for the supply of combustible gas
IPC: F16L19/028
Filed: 1929-12-31
Abstract: 346,030. Pipe joints. BECKER, A. C., 63, Edisonstrasse, Obersoh÷neweide, Berlin. Dec. 31, 1929, No. 39894. Convention date, Feb. 4. [Class 99 (i).] An aluminium pipe for connecting a gas supply to pressure regulators, ignition clocks and other control members on street lamps is connected thereto by a joint comprising a socket 4 and a nut 11 which screws into the socket and forces a flanged end 10 of the pipe on to a seat 12. The screwthreaded stem 5 of the socket is preferably of different pitch from the nut 11.
Patent GB-850104-A (GB)
Title: Improvements in electric snap acting switch
Inventor: RHODES WILLIAM EMERSON
IPC: H01H13/36
Filed: 1957-12-23
Abstract: 850,104. Retractive switches. ROBERTSHAW-FULTON CONTROLS CO. Dec. 23, 1957 [April 22, 1957], No. 39969/57. Class 38 (5). A snap action switch comprises an L-shaped blade spring 24 and a contact-carrying blade spring 18, both secured at one end to the switch casing and interconnected at their other ends by a stiff link 36. Depression of the push button 31 causes the spring 24 to rise and the link to snap the moving contact 22 from the fixed contact 20 to the fixed contact 23. The link is positioned between the blade springs by tongues 28, 32 on the latter which pass into slots 38 in the link.
Patent GB-1198529-A (GB)
Title: An Improved Method and Device for Washing Samples in Test Tubes with Controlled Quantities of Liquids.
Inventor: EBERLE GUENTER
IPC: G01N1/18
Filed: 1967-09-01
Abstract: 1,198,529. Delivering measured quantities of liquid. ANDREAS HETTICH ZENTRIFUGEN UND APPARATEBAU. 1 Sept., 1967 [1 Sept., 1966], No. 40050/67. Heading B8N. [Also in Division B1] A method of washing samples (e.g. of blood) in test tubes with predetermined quantities of liquids and of emptying the tubes, such as for use in blood-group serology, comprises pumping the liquid from a storage tank 1 into a measuring chamber 5 via a pump 3 and then distributing the liquid simultaneously, by means of a distributing block 6, into a number of test tubes 15, the liquid being afterwards withdrawn by suction simultaneously from all the test tubes. The distributing block 6 is formed from two plates 36, 37 screwed together, the plate 36 being provided with an inlet connection 33 communicating via ports 34 and a groove 35 with outlet passages 12, one for each test tube; conical surfaces 19 are formed around the outlets in order to centralize the test tubes 15 held in a frame 31 in which an observation window is provided. A pair of three-way valves 2, 4 positioned as shown in Fig. 1 permit liquid to be drawn from the storage tank 1 by the pump 3 and then fed to the measuring chamber 5. When the level of liquid reaches an electronic senser 10 in the chamber, the pump is automatically switched off and the positions of the valves changed manually. The pump is again switched on so that it draws the liquid from the measuring chamber and feeds it to the distributing block 6; when the liquid level falls to the lower end of a second electronic senser 11 the pump is switched off. The liquid is removed from the test tubes by means of a block (9, Fig. 5) having a number of tubes 41 adapted to enter the test tubes, the depth of entry being determined by means of an adjustable plate (13).