baber/WOPTO huggingface dataset:
Patent GB-1492668-A (GB)
Title: Apparatus for detecting the direction of a magnetic field
IPC: G01D5/18
Filed: 1975-07-14
Abstract: 1492668 Detecting the direction of a magnetic field SONY CORP 14 July 1975 [31 July 1974] 29479/75 Heading G1N An apparatus for detecting the direction of a magnetic field comprises a magneto resistive  element 1 having an insulating substrate 7, and first and second ferromagnetic strips A, B on the substrate for providing first and second current conducting paths respectively perpendicular to each other, first ends of the strips being electrically connected together and connected to an output terminal 4 for supplying an output signal and current supply terminals 2, 3 connected to the other ends of the strips. A bias magnet 12 stationary with respect to the element 1 is provided adjacent the element for supplying a bias field to the element 1 at a predetermined angle, e.g. 45 degrees, relative to one of the first and second current conducting paths. As shown, three elements 1a, 1b, 1c are associated with the bias magnet 12 each element comprising a plurality of current conducting paths 8, 9. The bias magnet 12 is magnetized across its width and is formed of a propeller shaped section, the blades of which are interleaved with fan shaped sections. An element 1a, 1b, 1c is placed at the intersection between two sections. The bias magnet may be a semicircular disc, Figs. 10, 11, (not shown). The elements may be interposed between a printed circuit and the bias magnet with the elements bonded to the printed circuit, Fig. 11B, (not shown). The apparatus is used for defining the angular position of a shaft. For this purpose a composite magnetic disc is attached to the shaft for rotation therewith adjacent the bias magnet-elements assembly, Fig. 8, (not shown). The magnetic disc comprises four part annular sections which are assembled in pairs, one pair within and concentric with the other pair, Figs. 7A, 7B, (not shown).
Patent GB-617495-A (GB)
Title: Improvements relating to typeholders for use with printers metal type
IPC: B41B1/28
Filed: 1946-10-03
Abstract: 617,495. Holders for detached types. BAKER, J. H. Oct. 3, 1946, No. 29566. [Class 100(ii)] A type-holder for printers' metal type comprises a block 3 of metal, plastic, wood or formed with a groove 1 to receive type 6, one wall of the groove, as shown the outer wall, being relatively non-yielding and the other yielding, and a fillet 5 of wedge-section strip form being inserted in a slot 4 whereby the yielding wall may be forced towards the non-yielding wall to clamp the type in the groove. The wedge 5 may be made of wood, rubber, papier machÚ or like composition material, plastic or metal, and the block 3 may be one-piece or built up, the walls being separate parts attached to a body member and the movable wall consisting of a strip or strips of sheet metal or like resilient material. As shown. the slot 4 is situated between the yielding walls of two type-grooves. According to the Provisional Specification, the fillet may be replaced by a wedge-shaped peg or series of pegs.
Patent GB-663019-A (GB)
Title: Improvements in sensitive photographic emulsions
IPC: G03C1/10
Filed: 1949-11-18
Abstract: 663,019. Photographic emulsions. KODAK, Ltd. Nov. 18, 1949 [Nov. 18, 1948], No. 29566/49. Class 98 (ii). The speed of a light-sensitive silver halide emulsion is increased by the incorporation of the polyamine spermine, or a non-desensitizing water-soluble salt thereof. The emulsion may also contain a sulphur sensitizer, incorporated before, simultaneously with, or after the polyamine or salt thereof, and may also contain an optical sensitizer. The polyamine or salt may be added during digestion of the emulsion, so that further digestion occurs after the addition. At least one emulsion layer of a colour photographic multilayer material may be so prepared. In examples, comparisons are made between the fog, gamma, and speed values obtained with emulsions with and without spermine, allyl thiourea being used as sulphur sensitizer in the first example and the emulsion being peptized with a gelatine derivative as described in Specification 649,545 in the second example. The developer used in the second example contains p-methylaminophenol sulphate, hydroquinone, sodium sulphite, sodium bisulphite, sodium carbonate, potassium bromide, and citric acid. The speed increase is effective at a fairly low pH, such as 6.0, and the increase obtained with a sulphur sensitized emulsion is considerably greater than would be expected from the speed increases obtained by the use of the individual sensitizers. The emulsion binder may be gelatine, polyvinyl alcohol, a copolymer thereof, or a partially hydrolyzed cellulose ester (e.g. cellulose acetate). Specification 235,211, [Class 98 (ii)], is referred to.
Patent GB-236107-A (GB)
Title: Improvements relating to the arrangements of magnetos and dynamos applied to internal combustion engines
IPC: F02P1/00
Filed: 1924-12-11
Abstract: 236,107. Crossley Motors, Ltd., and Wishart, T. D. Dec. 11, 1924. Dynamos and magnetos, driving.-A dynamo B and a magneto C driven by an internal-combustion engine are mounted on a platform A removably secured to a bed G, and the construction is such that the magneto can be driven either in tandem through the dynamo shaft, or, by turning the platform and the magneto, direct from the driving disc D. The disc D has outer teeth E which serve for the dynamo drive, and inner teeth F for the direct magneto drive.
Patent GB-972428-A (GB)
Title: Apparatus for the treatment of mixtures of fine granular minerals by the flotation method
IPC: B04C5/04
Filed: 1963-07-26
Abstract: 972,428. Centrifugal separators; flotation apparatus. BETEILIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT m.b.H. July 26, 1963 [July 28, 1962], No. 29833/63. Headings B2H and B2P. An apparatus for concentrating fine granular mineral, e.g. coal, by froth flotation of an aerated pulp of the mineral containing one or more flotation agents includes a centrifugal separator 10, Fig. 1, comprising a partly conical vessel 15, Fig. 3, provided with a supply pipe 9 for the pulp leading tangentially in its upper part, a lower discharge outlet 16 for the residue and a central discharge outlet for the froth situated at the top and constructed in the form of an overflow, the lower tubular end 18 of which, with a diameter equal to at least 60% of that of the upper end of the vessel, is extended downwards only to about the centre line of the mouth of the supply pipe 9 and is provided with baffle plates 19 only in its interior. The upper end 20 of the froth discharge outlet is in the form of a funnel provided with baffle plates 21 horizontally and/or vertically arranged. The baffle plates consist of perforated plates or of lattice screens. The coal-containing froth may be skimmed off by known devices from the top of the funnel 20 or may overflow into a froth tank 22. In a modification, the funnel 20 is surrounded by a further funnel defining an intermediate conical annular space forming a settling zone for wrongly discharged residue-containing pulp which can be drawn off through bores in the lower end of the outer funnel. Raw coal is mixed with water and floatation agents in a mixing tank 1 and conveyed to a reservoir 7 by a rotary pump 4 or one or more air injectors, the injectors also providing aeration of the pulp. The pulp then flows towards the supply pipe 9 ahead of which are provided a screw 11, Fig. 3, for setting the pulp in rotation, and an air injector in the form of a nozzle 12 fed through a pipe 13 for aerating and whirling the pulp. The pipe 9 has a portion 14 of widened cross-section in which the pulp is relieved of pressure before entering the separator. A pipe line 25 may be connected to the outlet 16 of the separator to convey the residue to one or more centrifugal separators for further treatment.
Patent GB-427429-A (GB)
Title: Improvements in nut forging machines
IPC: B21K1/64
Filed: 1933-10-27
Abstract: 427,429. Forging - machines. WILEY & SONS, Ltd., E. J., and WILEY, E. J., Eagle Works, Darlaston, Staffordshire. Oct. 27, 1933, No. 29841. [Class 83 (iv)] A safety device for nut-forging machines involves toggle links transmitting the thrust maintained in position by a spring and collapsing under undue strain. As shown, the rear end A of the carriage or support of the fixed forging tool supports on studs C a housing D for the toggle links, one of the toggle links being mounted at J in a cylindrical bearing therein, and the other link F being similarly mounted in a block E sliding in the housing Connection between the links is by a pivot pin H, between which and the bearing J is a pivot g on the link G for a rod k. The latter carries a nut k and washer N, against which one end of a coiled springs bears, the other end resting against a fixed abutment N<2>. The toggle links are set at a slight inclination to one another.
Patent GB-158753-A (GB)
Title: Improvements in paper fasteners
IPC: B42F1/08
Filed: 1919-12-01
Abstract: 158,753. Gloucester Pin Manufacturing Co., Ltd., and Willie, G. Dec. 1, 1919. Clips, spring-wire. -A single length of wire is bent into the form shown in Fig. 3, so that two U- shaped jaws are pressed together by a spring 1, one of the jaws 2 being smaller than and lying within, the other 3, and being curved so that its plane intersects the plane of the jaw 3, as shown in Fig. 4. The end 4 is bent into the coil of the spring 1.
Patent GB-633473-A (GB)
Title: Water tube firebox for locomotive boiler
IPC: F22B13/12
Filed: 1946-08-22
Abstract: 633,473. Forced-flow steam boilers for locomotives. SUPERHEATER CO. Aug. 22, 1946, No. 29888/48. Convention date, Feb. 12, 1946. Divided out of 633,414. [Class 123(ii)] A water-tube firebox for a locomotive comprises closely adjacent trifurcated tubes 82 of inverted U-shape which extend between water-supply and steam-collecting headers 80, 84 respectively at opposite sides of the locomotive to form the sides and roof of the firebox, the header 80 having a water inlet 24, leading from the usual boiler barrel 10 and including a pump, not shown, and the header 84 being provided at its forward end with a riser 86 communicating with a second header 88 extending at 89 into the steam space of said barrel. The tubes 82 are supported by a structure comprising front, rear and intermediate inverted U-shaped conduits 32, 34 and 36 which bridge the headers 80, 84 and are braced by side longitudinal conduits 38, in communication therewith, and an upper conduit 108, the two ends of the latter being connected respectively by pipes 96, 98 to a. further water header 90 and the steam header 88. The water header 90, and a steam header extension 92 thereof, is interposed between the rear ends of the main headers 80, 84, and, preferably, trifurcated tubes 94, lining the rear wall of the firebox, bridge said former headers 90, 92. The front wall of the firebox and the combustionchamber may also be lined, the latter top and bottom, with water elements 106, 100 respectively. The elements 106 comprise at least three return-bend connected tubes extending from a riser 104 on the water header 80 to the riser 86, and the elements: 100 may be trifurcated tubes of semicircular form bridging the space between a spur header 102 on the riser 104 and the steam header 88. Arch tubes 113 are also provided to extend rearwardly and upwardly through the firebox from a water header 188, connecting with header 80, to a header 112 between the headers 80, 84. Specification 633,414 is referred to.
Patent GB-311250-A (GB)
Title: Improvements relating to veneering
IPC: B27D1/04
Filed: 1927-11-08
Abstract: 311,250. Tubular Wood Products, Ltd., and Green, J. Nov. 8, 1927. Veneers.-Imitations inlaid effects are produced in veneered structures by forming on a face of a foundation layer an uneven veneer surface built up of one or more layers of veneer, and then cutting, planing, sanding or grinding in substantial parallelism with the foundation layer so as to produce a surface revealing portions of some or all of the layers. The irregularity of the treated surface may be produced by overlapping strips, coils or the like as in Fig. 6, or by disposing parts or strips to produce patterns, as in Fig. 37, in which case the veneer is subjected to pressure before planing. In a modification ply wood, or veneer on a foundation, is scored or sunk in a regular or irregular pattern, as shown in Fig. 10, and the surface then smoothed. The plywood or veneer may be screwed or clamped to a base plate f in these operations. In a further modification two sheets of veneer provided with slits, are interlaced as shown in Fig. 33, compressed and planed off. One sheet only may be slit. Additional patterns may be formed on the sheets by pressing a sheet of wire-netting on the surface before smoothing.
Patent GB-484406-A (GB)
Title: Improvements in and relating to automatic gauging devices
IPC: B07C5/08
Filed: 1936-11-04
Abstract: 484,406. Separating and sorting gauges. CAMBRIDGE INSTRUMENT CO., Ltd., and STALLAN, W. J. Nov. 4, 1936, No. 29998. [Class 106 (ii)] Similar articles are sorted according to one of their linear dimensions by placing each article in turn between a fixed and a retracted movable member, advancing the latter so as to press each article in turn with equal force against the fired member, indicating the position of the movable member by a micrometer screen loaded to move backwards into contact with a forwardly facing abutment on this member and using the indication to control the subsequent path of the article. The movable member 1 is carried on parallel blade springs 2 and normally urged by them towards a fixed surface 3. The articles 4 are presented one by one between the surfaces 3 and 5 by means not shown. The member 1 is moved away from the surface 3 by a crank-pin 6 and slotted connecting rod 7 and then allowed to return under the action of springs 2. A small micrometer screw 8 of fine pitch carried by a threaded support 10 fixed to the anchorage 20 of the springs 2 also carries a long pointer 11. At each movement of the member 1 before it returns into contact with the next article to be gauged, the screw 8 is screwed a short distance towards the surface 3 against the action of a return spring 12 by the turned action of a finger upon the pointer 11 by mechanism not shown. Following the contact of the face 5 with the specimen, the finger is withdrawn from the pointer 11 and the screw 8 moves under action of the spring 12 until its end 13 touches an abutment 14 on the part 1. The pointer 11 carries an electric contact 15 which with pieces of normal size lies between two pairs of contacts 16, 17. If the article is between the limits no contact is made and it passes to an " accepted " trough. If above or below size the corresponding pair of contacts is made and a gate operated to deflect the article to a corresponding trough for " over " or " under " sized articles. In a modification, the circuit passes through the pointer and a series of contacts are arranged in arcs so that articles may be sorted into several sizes.
Patent GB-216451-A (GB)
Title: Improvements in spring dampers for use on vehicles
IPC: B60G13/04
Filed: 1923-11-29
Abstract: 216,451. Alvis Car & Engineering Co., Ltd., and Clarke, G. T. Smith-. Nov. 29, 1923. Vibration dampers.-In a shockabsorber of the type in which a depending plate is pivoted to the frame of a vehicle and slides between friction surfaces, the depending plate D is hinged directly, or by means of a shackle E, to a bracket B secured to the chassis frame and slides vertically between a pair of pads J carried by cheeks G, H secured together by a bolt K and spring-pressed by a spring washer L. The cheek G may be formed integrally with a part M adapted to secure it to the axle. A certain amount of play is permitted. The shock-absorber may readily be fitted to existing vehicles.
Patent GB-775845-A (GB)
Title: Improvements in or relating to frequency or phase modulated signal transmission relay stations
IPC: H03C3/08
Filed: 1954-10-19
Abstract: 775,845. Automatic frequency control. TELEFONAKTIEBOLAGET L. M. ERICSSON. Oct. 19, 1954 [Oct. 19, 1953; April 24, 1954], No. 30124/54. Class 38 (4). [Also in Group XL (c)] In a relay station for frequency- or phasemodulated waves the incoming signal, after reduction of the frequency or phase swing by a negative feedback loop including a means frequency reducing local oscillator 13, and detec. tion by a discriminator 15, frequency or phase modulates an oscillator/modulator 17 producing an outgoing signal, and the frequency difference between the transmitted signal and input of the discriminator 15 after frequency multiplication to ensure that the frequency swings are substantially the same and transposing to a lower frequency range by a local oscillator 22 is derived from a converter 20, and after detection by a discriminator 23 and amplification is used as a correction voltage applied to the oscillator/modulator 17, or a preceding D.C. amplifier 16 to linearize the conversion stages between the discriminator 15 and transmitter input. Reference has been directed by the Comptroller to Specification 653,288.
Patent GB-320528-A (GB)
Title: Process for the production of a ground fabric for embroidery purposes
IPC: D04C1/04
Filed: 1928-10-18
Abstract: 320,528. Baer, E. Oct. 18, 1928. Gauze and leno fabrics.-A ground fabric for embroidery purposes comprises indestructible warp threads a, a<1> twisted together and bound in by indestructible weft threads b, b<1>, intermediate destructible warp threads c, and weft threads d being used, interweaving with one another and with the indestructible threads as shown. The fabric is then embroidered upon, and the destructible threads subsequently destroyed, whereupon a gauze-like embroidered fabric results as shown in Fig. 3, the twisted warp threads a, a<1> retaining the weft threads b, b<1> spaced apart. The indestructible warp threads may be in groups of three one of which is twisted around the others.
Patent GB-1306478-A (GB)
Title: Process for preparing -substituted benzodiazepine derivatives
IPC: C07D243/30
Filed: 1971-06-28
Abstract: 1306478 Benzodiazepines SUMITOMO CHEMICAL CO Ltd 28 June 1971 [30 June 1970] 30144/71 Heading C2C Compounds of the general formula (R 1  = H, halogen, NO 2 , C 1-4  alkoxy, CF 3 , CN; R 2  = H, C 1-4  alkyl, Ph, aralkyl ; R 3  = Py, R 4 R 5 Ph; R 4,5  = H, halogen, C 1-4  alkyl, CF 3 , CN; n= 1-4) and their acid addition salts are prepared by reacting a compound of the formula with a compound of the formula optionally followed by salt formation. Reference has been directed by the Comptroller to Specification 972,968.
Patent GB-629839-A (GB)
Title: Disconnecting switch for high tension electrical circuit breakers
IPC: H01H33/12
Filed: 1947-11-13
Abstract: 629,839. Air - break switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 13, 1947, No. 30204. Convention date, Nov. 16, 1946. [Class 38(v)] In order to permit a rapid reclosing operation in a circuit-breaker having a series disconnecting-switch which opens simultaneously with, or immediately after, and closes immediately after, the breakercontacts, rapid reclosure of the disconnecting-switch is obtained by operating it by two independent members, such that for a rapid reclosure operation the disconnecting-switch is only partly opened by one of the operating members, whereas for a definite interruption, the other member is also operated to fully open the disconnecting-switch. In Fig. 1 the breaking-gaps 1, mounted on an insulator 2, are in series with interengaging arms 5, 6 of the disconnecting-switch; for rapid reclosure, only arm 5 is raised and lowered, whilst for definite interruption the arm 6 is raised also. The arm 5 moves much quicker and has less inertia than the arm 6 and may remain open or reclose with the breaking gaps on definite interruption. Alternatively Fig. 3 (not shown), the arms 5, 6 engage fixed contacts mounted on an additional insulator. In Fig. 2, .the disconnect contacts are pneumatically movable by pistons 10. For rapid reclosure, compressed. air is admitted to the cylinder 9 first to move the pistons inwardly and separate the contacts 7, 8 and then out wardly to reclose them. For definite interruption, an insulator 11 supporting the retracted contacts is also rotated through 90 degrees by a pinion 13 on an operating shaft 14. In Fig. 4 (not shown), a pair of similar vertically-moving switch-arms, as 5, 6, are moved,for rapid reclosure out of and into engagement with spaced contacts on a rotatable insulator, as 11, .whilst for definite interruption, also the spaced contacts are rotated in a horizontal plane by the insulator. Alternatively, Fig. 5, the arms 5, 6 move horizontally and the arms 18, 19 are rotated in the same direction by individual insulators 20, to provide the definite interruption.
Patent GB-225063-A (GB)
Title: Improvements in or relating to insulating handles, knobs, or the like
IPC: E05B1/00
Filed: 1923-11-30
Abstract: 225,063. Sharplin, W. J. Nov. 30, 1923. Insulated handles with screwed sockets.-Handles or knobs insulated from heat or electricity of the kind having a screwed' bush for attaching them, are formed by moulding and pressing the insulating material c upon a screwed bush a having an enlarged plate b at one end which prevents the bush from being pulled out without breaking the handle or knob. The bush a may be in the form of a hexagonal nut, Fig. 1, with a hexagonal plate b sweated or formed on the end.
Patent GB-333790-A (GB)
Title: Improvements in two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1929-10-07
Abstract: 333,790. Krupp Germaniawerft Akt.- Ges., F. Oct. 15, 1928, [Convention date]. Cylinders receiving liquid fuel.-In an airless injection two-stroke engine a rotary motion transverse to the cylinder axis is imparted to the combustion air which enters through ports E directed towards a dished crown in the piston. Exhaust ports are located at F. The combustion head may be of the same concave form as the piston crown B or it may be tapered, as shown in plan in Fig. 6. Oppositely located fuel nozzles D, Fig. 6may be disposed on the axis of rotation of the combustion air, the orifices of each nozzle being so arranged that the opposing jets of fuel lie in different planes. Alternatively, one fuel nozzle may be located centrally in the cylinder head; in each arrangement the fuel is injected transversely to the direction of rotation of the air.
Patent GB-1207217-A (GB)
Title: Prestressed concrete pressure vessel
Inventor: CRUSET JEAN-LOUIS
IPC: F16J12/00
Filed: 1968-06-26
Abstract: 1,207,217. Reactor pressure vessels. COMMISSARIAT A L'ENERGIE ATOMIQUE. 26 June, 1968 [3 July, 1967], No. 30375/68. Heading G6C. The nuclear reactor concrete pressure vessel 10 has an enclosure formed of the slab 26 and wedges 28 which bear on the conical faces 18 and 24 respectively. The hydraulic jacks 29 urge the wedges 29 against the face 24 together with the jacks 38 which are supported on the carrier 20. The jacks 40 urge the slab 26 against the surface 18. Longitudinal and circumferencial stressing cables 12 and 14 are mounted within the wall structure. The control rods 70 slide within the ducts 71. Leak-proof and thermal insulation linings cover the wall wall surfaces of compartment 16. To prevent damage by overpressure in the reactor core compartment 16, the safety system 62 controls valves 64, 66 in the hydraulic supply line to the jacks. In a second embodiment, the surface 24 is flared outwards and the wedges are maintained in position by cables stretched between the vessel outer face and the wedges.