baber/WOPTO huggingface dataset:
Patent GB-653374-A (GB)
Title: Improvements in or relating to mouldable compositions
IPC: C08L61/06
Filed: 1946-07-16
Abstract: A mouldable resinous composition is produced by rotating a block of wood which contains its original moisture or which is refreshed (e.g. by having been treated with wet steam at 100-150 DEG  C.), presenting a tool against the rotating block to produce-by grating, grinding or peeling-leaves or needle-shaped pieces of wood of substantially uniform dimensions between 0.02-0.002 inch thickness and of total surface area 0.0016-16.0 square inches, and mixing these leaves or pieces with a sufficient quantity of a resinous binder to form a mouldable composition.  Binder materials referred to are natural or synthetic or plastic resinous type such as phenol formaldehyde, urea formaldehyde, synthetic resin, pitch, sulphur, asphalt, rosin, cellulose acetate.  In an example, 60 parts of wood pieces 0.4 by 0.4 by 0.004 inch in leaf form are mixed with 40 parts phenol- or urea-formaldehyde resin and vacuum dried at 40 DEG C.  It may be formed into, e.g., hand wheels for tools, or insulating plates by press or injection moulding.  Specification 504,673, [Group XXIII], is referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of dried wood and states that the wood block and tool may be in relative rotation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-302991-A (GB)
Title: Improvements in containers for jam, marmalade and the like
IPC: B65D39/00
Filed: 1928-07-23
Abstract: 302,991. Nielsen, N. C. Dec. 24, 1927, [Convention date]. Closures completed by outstanding packing-rings. -Jars for jam, marmalade, tobacco, &c. are closed by a cover 2 having a slightly conical or cylindrical downward extension 3 which coacts with a. caoutchouc &c. packing-ring 5 disposed in a circular groove 4 in the neck of the jar to obtain an hermetic seal by lateral pressure only. Reference has been directed by the Comptroller to Specifications 12815/91 and 13835/96.
Patent GB-708447-A (GB)
Title: Needle roller bearings
IPC: F16C19/46
Filed: 1951-09-11
Abstract: 708,447. Roller bearings. ROLLER BEARING CO. OF AMERICA. Sept. 11, 1951 [Sept, 15, 1950; Aug. 31, 1951], No. 21387/51. Class 12(1) A roller bearing comprises a race ring 1 having spaced side ribs 2, 3, cylindrical rollers 11 having symmetrical ends, and a cage 5 having rims which overlie and make a slip fit with the rims 2, 3, the rims and ribs each having a radial surface transverse to the axis of the bearing and the annulus of juncture between the rims and ribs lying in a zone having a width of not more than ten per cent of the diameter of a roller on either side of a pitch circle passing through the centres of the rollers. The juncture preferably' lies on the pitch circle. The inner surface of the cage 5 may be axially or circumferentially grooved as at 9 to form extruded roller retainers 10. The outer raceway may be cylindrical or axially curved as shown in Fig. 3. Similarly the inner raceway 14 may be axially curved. Alternatively the inner race may be dispensed with, and the rollers bear directly on a shaft or trunnion. The cage is preferably not more than one third the diameter of a roller in thickness.
Patent GB-657699-A (GB)
Title: Improvements in mountings for engraved stereotype or like printing plates
IPC: B41N6/00
Filed: 1948-08-14
Abstract: 657,699. Compound sheet materials. WILKES, J. Aug. 14, 1948, No. 21504. Drawings to Specification. [Class 140] [Also in Group XVI] Compound sheet material from which blocks may be cut for mounting printing plates (see Group XVI) comprises a core of natural or synthetic fibrous material (e.g. wood chippings or ground wood) bonded with a hard-setting water-insoluble adhesive (preferably capable of withstanding temperatures up to 212‹ F., e.g. a thermo-setting plastic) to the top and underside of which aluminium or other metal foil workable by wood-working tools is fixed by a waterproof adhesive. The top may be marked (e.g. by printing or embossing) with squares &c. indicating dimensions.
Patent GB-276031-A (GB)
Title: Improvements in or relating to casting apparatus for making stereotype plates
IPC: B41D3/00
Filed: 1927-08-16
Abstract: 276,031. Maschinenfabrik Augsburg- Niirnberg Akt.-Ges. Aug. 16, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Stereotype, casting.-In stereotype casting-apparatus of the type in which the mould e is connected to the metal pot a by a conduit c, and a funnel f for the reception of a head of metal is provided above the mould, the metal is supplied in a continuous flow through the conduit to the mould, and, after the mould is full, the metal passes into the funnel and returns, in known manner to the pot through a pipe g. The funnel f is normally open to the atmosphere, but a valve q can be closed so that the flow of metal through the pipe g tends to form a vacuum in the space r. A valve h is provided at the mouth of the mould for the purpose of separating the cast plate. This valve may be a three-way valve which can be turned to close partly or completely the passage to the funnel f so that additional pressure can be exerted on the metal in the mould during the casting-process.
Patent GB-1413928-A (GB)
Title: Gas pressure regulating valve
IPC: G05D16/06
Filed: 1974-05-15
Abstract: 1413928 Valves DUNGS VERWALTUNGS GmbH 15 May 1974 [2 Oct 1973] 21676/74 Heading F2V In a pressure regulating valve having an adjustably spring-loaded diaphragm 24 moving a valve member 8 relative a seat 9 to regulate the pressure in outlet 6, a safety diaphragm 25 is disposed between the diaphragm 24 and a vent 39, has an aperture 48 therethrough, and is operatively connected to the valve member. Diaphragms 24, 25 are integrally connected by an inner region 41 formed with a bead 42 and each have an outer peripheral bead 45, 46. The loading spring 34 abuts at its upper end a plate 49 which is mounted by means of a ball bearing 50 on a plate 33 adjustably threaded in the bore of projection 31.
Patent GB-1497373-A (GB)
Title: Method and apparatus for reducing tangential force variation in pneumatic tyres
IPC: B29C67/00
Filed: 1976-05-25
Abstract: 1497373 Grinding tyres GENERAL TIRE & RUBBER CO 25 May 1976 [18 Sept 1975] 21683/76 Heading B3D [Also in Division G3] A method of reducing tangential force variations in a pneumatic tyre comprises rotating the tyre against a load, sensing and measuring the force variations in the tangential direction which the tyre is rotating, and removing material from the tyre according to measured tangential force variations so as to reduce them. In apparatus for carrying out the method, the tyre 10 is mounted on a rim 12 carried on an axle 14 driven by rotary drive means capable of driving the tyre at two speeds, e.g. 24 or 60 r.p.m. for measurement of radial and lateral force variations, and at a higher speed of at least 300 r.p.m. and preferably 800 r.p.m. for measurement of the tangential force variations. A loading drum 18 is freely rotatably mounted on an axle 20 connected to hydraulic cylinders 22 for engaging the drum with the tyre. A pair of load cells 24 is mounted on the axle and have sensors for measuring radial and lateral forces and further sensors for measuring the tangential forces: alternatively the tangential forces may be measured by a torque measuring device between the drive means and tyre. The output of the tangential sensors is fed to a computer which stores the information, compares it with predetermined limits and, if the forces exceed the limit, produces an output fed by a line 28 to an amplifier 30 controlling a servo-valve 32 for moving a grinding or cutting tool 34 for removing material from the inner tread ribs of the tyre at the location of maximum force variation. In operation, the tyre is mounted and inflated on the rim 12 and rotated against the loading drum and the radial and lateral force variations are reduced using conventional methods which remove material, if necessary, from the outer ribs of the tyre. The tyre is then rotated at the higher speed during sensing of the tangential force variations and the output from the sensors is stored in the computer. The computor produces a first harmonic of the oputput from the sensors and compares the maximum magnitude of the harmonic with the predetermined acceptable limit and also determines the position on the tyre of the maximum magnitude of the force variation. The information is stored in the computer and supplied to the amplifier in the form of a V-shaped ramp function when the tyre is rotated at its lower speed to actuate the servo valve 32 so that the grinding wheel first touches the tyre 90 degrees before the position of maximum variations, removes the maximum amount of material at the point of maximum tangential force variation and disengages the tyre 90 degrees beyond that point. The process is repeated during successive revolutions of the tyre until the tangential force variation is within the acceptable limit.
Patent GB-587196-A (GB)
Title: Arrangement for charging electric accumulator batteries
IPC: H02J7/12
Filed: 1944-11-07
Abstract: 587,196. Charging and discharging batteries. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 7, 1944, Nos. 21823 and 21824. Convention dates, Nov. 18, 1943, and Dec. 8, 1943. [Class 38 (iv)] In an arrangement wherein an A.C. supply 1 acts through a rectifier 2 to charge a battery 3, a current responsive member 4 is inserted between the rectifier and the battery and serves to control the rate of charging of the battery. The rectifier 2 is of the kind that limits the current through it and that is associated with a D.C. saturated inductance so as to provide a " constant " output voltage. In the arrangement shown in Fig. 1, when the current increases due to the battery becoming discharged, the relay 4 operates and raises the output voltage of the rectifier. In a modification, Fig. 2 (not shown), the relay 4 acts to cut out part of the load to interrupt the charging, or to change the rectifier voltage to a value suitable for maintenance charging, thereby indirectly controlling the rate of charging. In a further modification, the relay 4 may be replaced by a transductor. In another arrangement, Fig. 3, wherein a relay 21 is connected between a charging rectifier 13 and the battery 25, an increase in the current through the relay serves not only to boost the voltage of the rectifier, but also to switch in another charging circuit for the battery through a rectifier 14. In this arrangement, the battery is used as. an emergency supply for a load circuit. When the A.C. supply to the load fails, a relay coil 22 is deenergized and contactor 18 switches in battery 25 to supply the load until the normal supply is restored. If the battery is sufficiently rundown, the charging current from the rectifier 13 operates the relay 21, thereby opening a circuit 20, which boosts the voltage of the rectifier, and closing a circuit through a rectifier 17 and the D.C. winding of a transductor 15. The inductance of the transductor is lowered so that the rectifier 14 supplies a constant charging current to the battery. As this becomes charged, the current from rectifier 13 gradually falls until relay 21 releases. This cuts out rectifier 14 and reduces the voltage of rectifier 13 to its normal value, i.e. for trickle charging.
Patent GB-901059-A (GB)
Title: Improvements in the production of 1,4-diaminoanthraquinone-2,3-dinitrile
Inventor: BRAUN WILLY
IPC: C09B1/22
Filed: 1960-06-23
Abstract: 1:4-Diaminoanthraquinone-2:3-dinitrile is made by reacting 1 mole of 1:4-diamino-anthraquinone-2-sulphonic acid or a salt thereof with at least 2 mols of a water-soluble salt of hydrocyanic acid in aqueous solution at temperatures between 65 DEG  and 100 DEG C., there being present throughout the course of the reaction an amount of an oxidising agent which is just sufficient to maintain in the reaction mixture a redox potential of +180 mV to +550 mV with reference to a platinum/thallium amalgam/thallium chloride electrode cell [Hg/TI (40%)/TlCl saturated, KCl saturated], a temperature of 90 DEG  to 95 DEG C. and a pH of 9 to 11.5, and thus to prevent a change of shade of colour of the reaction mixture from reddish-blue to dark red. Acid-binding agents may be present.  Oxidising agents specified are hydrogen peroxide, manganese dioxide, ammonium persulphate, sodium percarbonate, sodium perborate, sodium perpyrophosphate, iodine, peracetic acid, the adduct of urea and hydrogen peroxide, sodium m-nitrobenzene sulphonate or atmospheric oxygen in the optional presence of ammonium molybdate or vanadate or copper acetate. Examples are given.  Specification 359,850 is referred to.
Patent GB-823345-A (GB)
Title: Polymers, process for producing the polymers and shaped structures containing these polymers
IPC: D01F6/18
Filed: 1957-07-11
Abstract: "White" acrylonitrile homopolymers or copolymers containing at least 85% of acrylonitrile and having a "heated colour value" below about 13 may be prepared by polymerizing acrylonitrile, optionally together with ethylenically unsaturated sulphonates and additional comonomers, in aqueous media in the presence of redox catalyst systems comprising water-soluble derivatives, e.g. alkali metal and ammonium salts, of perdisulphuric acid and oxidizable sulphoxy compounds in which the valency of a sulphur atom does not exceed 4, e.g. sodium bisulphite, sodium metabisulphite, sulphur dioxide and sodium hydrosulphite, wherein the weight ratio of sulphoxy to peroxy compound is at least 6 to 1.  The media may contain small amounts of iron and the pH may be adjusted, e.g. to 3-4, by adding sulphuric acid.  The process may be conducted batchwise or continuously with continuous addition of reactants, and the polymers recovered and washed with water which may contain a sequestering agent, e.g. ethylenediaminetetraacetic acid or oxalic acid.  The polymers may be dissolved in de-ionized dimethylformamide and the solutions dry spun into fibres which may be dyed with basic dyes.  Many suitable sulphonates and comonomers are listed and examples describe the copolymerization of acrylonitrile with (III and IV) methyl acrylate; (V, VI and XX) methyl acrylate and potassium styrene sulphonate; (VII, VIII, X and XXI) methyl acrylate and sodium styrene sulphonate; (IX) N-tertiary butyl acrylamide and sodium allyl sulphonate; (XI) methyl vinyl ketone and sodium methallyl sulphonate; (XII) vinyl acetate and ammonium vinyl sulphonate; (XIII) styrene and sodium styrene sulphonate; (XIV) acrylamide and sodium styrene sulphonate; (XV) ethyl acrylate, acrylamide and sodium styrene sulphonate; (XVI) methoxyethyl acrylate and sodium styrene sulphonate; (XVII) vinyl formate and sodium styrene sulphonate; (XVIII) methyl methacrylate and potassium styrene sulphonate; (XIX) ethyl acrylate and sodium styrene sulphonate and (XXII) sodium styrene sulphonate.  "White" polymers are defined in the Specification as having a "fibre colour value" of less than 6, the fibre colour value being determined from the reflectance ratios from pads of staple fibres in the green and blue filter settings of a differential colorimeter.  The "heated colour value," is determined from the increase in optical density on heating a dimethylformamide solution of the polymer at 100 DEG  C. for four hours.
Patent GB-596430-A (GB)
Title: Improvements in and relating to magnetic separators
IPC: B03C1/10
Filed: 1944-11-11
Abstract: 596,430. Magnetic separators. SCRIVENER, Ltd., A., and SCRIVENER, A. Nov. 11, 1944, No, 22242. [Class 72] In a magnetic separator for extracting metal particles from a liquid a magnetic disk a is lightly mounted in bearings a<SP>1</SP> and disposed so that its lower part depends into a restricted passage-way b<SP>1</SP> in a trough b. The disk a is driven by peripheral contact with a hub d mounted on a pulley d<SP>4</SP> driven by a band d<SP>6</SP> for a motor d5, the hub being provided with radial arms d<SP>2</SP> carrying at their ends rubber strips d<SP>3</SP>, which contact one or both faces of the disk and are inclined thereto. The end of the blades d<SP>2</SP> work in a trough e which is extended in one direction to form a stand e<SP>2</SP> for the motor d<SP>5</SP> and in the other direction is connected to a shoot e<SP>1</SP>, the whole being pivotally mounted at e<SP>3</SP> on the trough b.
Patent GB-315885-A (GB)
Title: Improvements in or relating to record-card-controlled statistical machines
Filed: 1929-07-19
Abstract: 315,885. British Tabulating Machine Co., Ltd., (Assignees of Carroll, F. M.). July 20, 1928, [Convention date]. Statistical machines.-In a machine generally similar to that described in Specification 289,071 for operation with Peirce cards, the card-readings being transmitted through translators to Hollerith type counters, means are provided for disconnecting the translators and placing the card-reading devices in direct connection with the counters when Hollerith cards are used. For this purpose also the cardfeeding is modified to feed at a constant speed during each card cycle in the setting for Hollerith cards, whereas for Peirce cards the feed is slower during card-reading and faster during the rest of the cycle. Fixed to the shaft 191, which is driven a complete revolution to feed a single card from a constantly rotating shaft of the machine (shaft 190, Fig. 18, of Specification 289,071), is a gear wheel 153 which, through a train 154, 155, 134, and 135, drives a sun wheel 136, loose on shaft 137 and driving a broad planet pinion 138 which is pivoted on a pin 139 on a planet carrier 140 rockable about shaft 137. For feeding Hollerith cards this carrier 140 is locked in the position of Fig. 4 by a manually actuated pin 141, which is slidable in the carrier, entering a hole 142 in a fixed member 143. This gives a direct drive from sun wheel 136 to shaft 137 through gears 138, 145, 146, the shaft 137 transmitting the constant drive to the card-feeding rollers. For code cards the pin 141 is removed from hole 142 and enters a hole in the end of a link 148 which is guided at this end by an arcuate member 149. This link 148 is reciprocated by a bell-crank 150 having a roller 151 in the race of a box cam 152 attached to the shaft 191. During each rotation of shaft 191, therefore, the cam 152 oscillates the carrier 140 so that pinion 138 rolls backwards and forwards over gear 136. The cam 152 is so designed that the drive to shaft 137 is decreased during reading of the code cards and increased during the rest of the card cycle. After each card-reading cycle for a code card, the shaft 191 is idle for two cycles. The translating mechanism; which is the same as that described in Specification 289,071, is cut out during Hollerith card operation by the following means, Fig. 2. The switch bar 70, in the position shown, connects the sockets 375 of the translators 368 to the wires 500 for the adding magnets 366. When the bar 70 is moved to the left by a bell-crank 502 the wires 500 for the adding magnets are connected through the blades 501 and wires 503 direct to the sockets 406 of the card-reading device 168. Similarly, when a bell-crank 506 moves a switch bar 504 to the left, the blades 505 of the latter break the connection between the card-reading sockets 406 and the translator magnets 310. Bellcranks 502 and 506 are coupled by a link 508 for simultaneous operation by a hand lever 507, so that switch bars 70 and 504 move to the left together. Specification 280,580 also is referred to
Patent GB-937468-A (GB)
Title: Optical pick off for pressure transducer
IPC: G01D5/38
Filed: 1961-06-20
Abstract: 937,468. Photo-electric pressure gauges. KOLLSMAN INSTRUMENT CORPORATION. June 20, 1961 [July 1, 1960], No. 22322/61. Class 40 (3). Pressure variations effecting movement of an aneroid diaphragm 10, Fig. 1, are indicated by a meter 21 energized by the output of a photocell 17 irradiated by light from a source 16 passing through a fixed aperture 14 and another aperture 13 in a plate 12 attached to and movable with the diaphragm. To increase the amount of signal variation with diaphragm movement a series of apertures may be employed in the form of one fixed and one movable parallel ruled grating. To give a reference signal level corresponding to zero diaphragm displacement two photo-cells may be used in a bridge circuit, the light falling on the two cells being varied in opposite senses by movement of the diaphragm. Gratings for this may comprise a movable grating 35, Fig. 5, whose rulings are slewed relative to those of a fixed grating 49 so that light reaching a photo-cell centred on line 50 varies inversely to that reaching a second cell centred on line 51. Other grating constructions may be employed and the out-of-balance signal from the bridge circuit may actuate an altimeter or an automatic pilot device. In order to eliminate acceleration effects, light from a single source 64, Fig. 8, is directed by mirrors 67 and 68 through two separate grating shutters 59, 60 and 62, 63 of the type described above to respective photo-cells 69, 70, the movable gratings 59 and 62 being actuated respectively by the opposite diaphragm walls 58 and 61 of the aneroid capsule 56 and the two shutters being arranged to operate in antiphase so that opposite movements of the diaphragms 58, 61 due to a change in pressure cause an unbalance in the outputs from the photo-cells whereas when the diaphragms 58, 61 move in the same direction due to acceleration the ratio of the light passed by the two shutters is unchanged.
Patent GB-295387-A (GB)
Title: Improvements in leather substitute and method of making the same
IPC: D06N3/10
Filed: 1928-08-02
Abstract: 295,387. Mechanical Rubber Co., (Assignees of Rose, R. P., and Owen, A. F.). Aug. 11, 1927, [Convention date]. Fibrous plastic compositions containing indiarubber.-In making a leather substitute of " sole leather " type, a pulp of fibre such as cotton is treated with an aqueous dispersion of rubber in such conditions as to deposit the rubber in minute particles on the fibres, which are then formed into a wet sheet, which is cold-pressed at 50- 500 lbs. per square inch (or in two stages up to 1200 lbs.), dried, and hot-pressed (225-310 F.) at 1200-2000 lbs. or more. The fibre is partly hydrolyzed by heating in water until the surface is gelatinized, ammonia, caustic soda, or sodium silicate is added, and a dispersion of rubber, natural or artificial, vulcanized or not, is mixed in, together with filling ingredients, and protective colloids (glue, treated starches, casein) if desired. To deposit the rubber on the fibre, aluminium sulphate solution is added, gradually and in a distributed form and preferably in two stages, the first stage being insufficient but the second stage sufficient to produce an acid reaction. A wet sheet is formed in any of the following ways :-(1) by a paper machine (Fourdrinier or cylinder) of the continuous type; (2) by a board machine in which successive plies are formed on a pick-up roll; additional rubber-dispersion may be sprayed on the plies as they form, together if desired with glue, which may be set by formaldehyde, tannic acid, etc.; (3) by a centrifugal sheet-forming machine; (4) by filtration on a screen; (5) by compacting the mix between two vertical moving convergent wire or felt surfaces; (6) by letting the mix settle, to get rid of part of the water, mixing with more rubber-dispersion, and shaping by extrusion. The final product contains 12-50 per cent rubber, vulcanized or not.
Patent GB-225520-A (GB)
Abstract: 225,520. Grimme, Natalis, & Co., Akt.- Ges. Nov. 29, 1923, [Convention date] . Adding and subtracting apparatus.-In cam-disc machines the cam-discs a are re-set to normal position by projections k on a slide c mounted by a pin-and-slot connection on a yoke e pivoting on the pin wheel shaft b. As the yoke is swung during re-setting a pin g on the slide c moves in a slot h in the fixed casing i so that the projections k are moved laterally into the path of the setting fingers m. These projections k are of varying length, Fig. 3, or inclination, Fig. 4, so that the cam-discs are relatively displaced and the springs of the justifying pins co-operating with teeth on the cam-discs are compressed to varying extents at any given moment.