baber/WOPTO huggingface dataset:
Patent GB-1063254-A (GB)
Title: Improved method of preparing skin and knife for use therein
IPC: A61B17/322
Filed: 1963-08-24
Abstract: 1,063,254. Knives for cutting skin. D. S. ROSS. Aug. 21, 1964 [Aug. 24, 1963], No. 33626/63. Heading A5R. [Also in Division G2] A knife for use in cutting skin comprises a straight-edged blade mounted in a frame presenting a handle, the knife also being provided with support shoes at each end of the blade, the shoes being adjustable in height so that the knife may be slid on the shoes over a working surface on which is secured a piece of skin and attached fat tissue so that the blade separates the skin from the tissue. As illustrated, the knife includes a rectangular-sectioned frame bar 5 having end pieces 2, 3, the blade being releasably held in a substantially horizontal position between members 5, 6 by a toggle-locking mechanism 10, 11. The shoes are in the form of end parts 25 sliding on the pieces 2, 3, the parts being adjusted to a desired position by a cam mechanism operated by a knob 23 and locked in this position by a screw mechanism 28. In an alternative embodiment (Fig. 5, not shown) the shoes are adjusted relative to the blade by interposing shims.
Patent GB-1518515-A (GB)
Title: Magnetic heads
IPC: G11B5/39
Filed: 1975-08-13
Abstract: 1518515 Magnetic head MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 13 Aug 1975 [20 Aug 1974 (3)] 33653/75 Heading G5R A magnetic read head with a magnetoresistive (MR) element includes an air gap which can be formed in the MR element. A thin sheet MR element 6, e.g. of permalloy is formed as a deposit on non-magnetic base 10 and includes an air gap 7. Magnetic flux converging cores 11, 12 are attached to the sheet which is provided with terminals 8, 9 for connection of the element to a constant current source. In a second arrangement an insulating layer 18, e.g. of silicon dioxide is formed on a ferrite base 17, a conducting layer 19 for carrying biasing current is then formed followed by a second insulating layer 20. A layer of ferromagnetic material, e.g. permalloy is then formed and etched to provide the groove of width W1 with V-shaped sides to thereby form the magnetic core elements 30, 31. On a further insulation layer 32 a magnetoresistive layer 33 of L-shaped cross-section is deposited.
Patent GB-1000982-A (GB)
Title: An experimental heterogeneous nuclear reactor
IPC: G21C5/14
Filed: 1961-09-20
Abstract: 1,000,982. Reactors. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Sept. 20, 1961 [Sept. 24, 1960], No. 33669/61. Drawings to Specification. Heading G6C. An experimental nuclear reactor is formed of graphite blocks and the fuel is accommodated in separate units which contain an additional moderator. The additional moderator, which surrounds the fuel, may be water or synthetic plastic material. The graphite blocks which are recessed to accommodate the fuel units and control rods are formed to be easily removable for the insertion of test pieces. The fuel recesses may lie on two concentric octagons and this is stated to effect thorough thermalization of the reaction spectrum. Emergency shutdown may be effected by containers filled with sodium pentaborate.
Patent GB-467088-A (GB)
Title: Improvements relating to lacquers
IPC: C09D161/06
Filed: 1935-12-05
Abstract: Coating-compositions are prepared comprising in solution a hardenable resinous formaldehyde condensation product, an accelerator or hardening catalyst and a quantity of free formaldehyde over and above that required to form the final insoluble resin.  The presence of the formaldehyde stabilizes the coating composition.  In examples: (1) a solution of an urea-formaldehyde resin in butyl alcohol is mixed with a solution of paraformaldehyde in butyl alcohol containing hydrochloric acid; (2) a solution of a phenol-formaldehyde resin in ethyl alcohol is mixed with alcoholic hydrochloric acid and a solution of paraformaldehyde in ethylene glycol monoethyl ether; (3) a solution of dimethylolurea and a castor oil modified alkyd resin in ethylene glycol monoethyl ether is heated and then mixed with a solution of paraformaldehyde in butyl alcohol containing hydrochloric acid.
Patent GB-1073114-A (GB)
Title: Intra-uterine contraceptive device
IPC: A61F6/14
Filed: 1965-08-06
Abstract: 1,073,114. Intra-uterine devices. B. P. APPLEBY. May 31, 1966 [Aug. 6, 1965], No. 33819/65. Heading A5R. An intra-uterine device of a resiliently flexible plastics material is formed as a helical coil having at each end a substantially closed oblong loop 1, 2, the coil being slightly flattened transverse to its axis. As shown, the major diameter of the loop 2 is larger than that of the loop 1 and the device is formed from a single length of plastics wire. In embodiments, the device is moulded and the loops 1, 2 are completely closed. The loops may be formed with bulbous ends (Figure 6, not shown) to avoid providing a sharp projection and the gauge of the material forming the loop may be half that of the helical coil. The plastics material may comprise polyethylene or polypropylene containing an X-rayopaque barium compound and the device may be provided with an integral or attached tail to facilitate removal of the device. The device may be provided in a sterilised pack also containing a pair of gloves, a speculum, and a plastics introducer tube with a plunger.
Patent GB-759237-A (GB)
Title: Electric switch operable by deformation of the housing
IPC: H01B7/10
Filed: 1954-11-23
Abstract: 759,237. Retractive switches. SPECIALTIES DEVELOPMENT CORPORATION. Nov. 23, 1954 [Dec. 2, 1953]. No. 33878/54. Class 38(5) A deformable switch assembly adapted to be operable by compression at any point along its length, comprises three elongate, superimposed, flexible conductive strips 10, 11 and 12, the middle one of which 11 has a spiral of non-conductive ribbon 14 wound around it so as to separate it from the other two, and a deformable non-conductive housing 15 enclosing the whole. The turns of the spiral winding are spaced along the longitudinal axis of the middle strip so that the distance between turns is greater than the, width of the ribbon, and the ribbon itself is made from silicone rubber. The two outer strips 10 and 12 are connected together to one side .of an electrical circuit and the middle strip is connected to the other side so that on applying pressure at any point along the length contact is made between the middle strip and one of the other two and the circuit is completed.
Patent GB-496843-A (GB)
Title: Improvements relating to pneumatic elevators for granular and like materials
IPC: B65G53/52
Filed: 1937-12-08
Abstract: 496,843. Pneumatic elevators. SIMON, Ltd., H., and WALDER, H. Dec. 8, 1937, No. 33951. [Class 87 (i)] In elevators for granular and like materials of the kind comprising a rigid pipe boom a which overhangs the vessel to be unloaded, and flexible and telescopic pipes b depending from the boom into the material, the pipe section attached to the boom is made flexible and telescopes within the boom. The inner end of the pipe b is attached to a pistonlike structure comprising plates d, Fig. 4, each carrying two sets of four rollers e, and two resilient jointing rings f. The rope c for manipulating the pipe b is secured by a clamp c<1> to the piston-like structure, and passes out of the boom through an air-tight box g, at one end and over a pulley m at the other. After the rope c has passed round a pulley h on the boom it is connected to a bar (not shown) to which are also connected two ropes j secured to the lower end of the fiexible pipe. The part of the rope passed round the pulley m, and the bar are connected to winch mechanism. Rollers k mounted in the curved end of the boom act as guides for the tube b. An inspection door n is provided on the boom a.
Patent GB-994079-A (GB)
Title: Improvements in the recovery of copper from mixed copper-zinc-lead materials
Inventor: MASSION WOLFGANG
IPC: C22B7/04
Filed: 1961-09-25
Abstract: The liquids temperature of the slag run from a zinc blast furnace smelting copper-lead-zinc oxidic material is lowered by adding, in the charge to the furnace but separately from the rest of the charge, a non-alkaline flux, having a melting point above 1100 DEG C., in lump form.  Fluxes mentioned are alumina, silica, iron oxide or iron or mixtures thereof. The flux is preferably added through a separate charging device situated to one side of the top of the furnace preferably directly above the tapping point for the slag.  This process aids in the more complete separation of and copper matte from the slag.
Patent GB-1023057-A (GB)
Title: Improved tray for continuous fermentation and drying of processed tea leaf
IPC: A23F3/08
Filed: 1964-08-21
Abstract: 1,023,057. Drying trays. P. CROMBIE. Aug. 21, 1964 [Aug. 22, 1963], No. 34269/64. Heading F4G. [Also in Division A2] A tray to be used in apparatus for the continuous fermentation and drying of processed tea leaf consists of a rectangular frame made of mild steel flats with a number of intermediate members parallel to the end members, all being welded together, corner pieces at the four corners, fabric supports comprising galvanized wires running parallel to the side members and passing through holes in the end and intermediate members, to which they may be secured by clinching, and a woven wire mesh fabric stretched across the top of the frame and secured to the side and end members by angled plates riveted thereto. In the apparatus, the angled edge plates of two adjacent trays may overlap to provide an unbroken surface. Spindles passing through the corner pieces may be fitted with rollers to run on angle iron runners in the chambers of the apparatus, which may have chains to haul the trays through, the trays being engaged with pins on the chains.
Patent GB-392257-A (GB)
Title: Improvements in or relating to pottery manufacture
IPC: B28B1/26
Filed: 1931-12-10
Abstract: 392,257. Casting pottery in endlesschain moulding-machines.' GREATBATCH, G., Romford, Seabridge Road, MASSEY, A., Inglewood, Whitehouse Road, both in Newcastle, PARKINSON, G. H., Chelsea House, Cherry Tree Hill, Derby, GRINDLEY & CO., Ltd., W. H., Tunstall, Staffordshire, and EWART CHAINBELT CO., Ltd., Colombo Street, Derby. Dec. 10, 1931, No. 34302. [Class 87 (ii).] In pottery manufacture a succession of porous moulds 13, carried in suspension on an endless conveyer, are filled with slip, automatically tipped to remove excess slip, automatically returned to upright position, conveyed to a position for " making " and returned to the starting position. The moulds 13 are bolted to trays 12 secured at each end in triangular slings 10 pivotally mounted on pins 8 formed on links 9 of an. endless chain conveyer. Rollers 28, 29, on long and short bosses respectively, are carried at the lower end of each sling 10 and rollers 22 are mounted on the pins 8, the planes of the rollers 22, 28, 29 being separate. The moulds are filled as they pass vertically down, the rollers 28, 29 preferably engaging guides 37. After passing round wheels 3, 4, 5, the moulds are overturned in two successive stages. First, the roller 28 engages a rail 30 to effect partial inversion and then the roller 29 runs up a ramp 31 completely to invert the mould. A check rail 36 prevents the roller 22 rising during inversion. The moulds are returned to upright position by a rack 35 engaging a pinion 33 secured to the sling 10 and mounted on the pin 8. The moulds then proceed round a wheel 6 where defects are corrected, and finally up an incline to the initial position. Rails 21 may support the rollers 22 during the horizontal and inclined runs. The conveyer is driven from a motor 23 through reduction, variable-speed and other gearing. Tensioning gear 20 may be provided. In a modification, the rail system is such that the moulds are overturned first to a position short of complete inversion and then to a position as far beyond this as the first was short. Provision is also made for a longer time interval between filling and inversion.
Patent GB-1447592-A (GB)
Title: Through-the-hub exhaust type marine propeller
IPC: B63H1/20
Filed: 1974-08-05
Abstract: 1447592 Propeller hubs BRUNSWICK CORP 5 Aug 1974 34358/74 Heading B7V A propeller with a passageway through the hub for exhaust gases is moulded from a material including nylon and at least 30% by weight of fibre glass, and comprises a hub with an outer annular portion 3, and an inner portion 4 connected thereto by a plurality of hubs 5. The portion 4 further includes a liner 10, e.g. of aluminium, and a splined sleeve 14, with a compressed resilient element 16, e.g. of rubber, therebetween. The trailing edge 21 is flared outwardly to prevent the exhaust from being drawn to the low pressure side of the propeller. The propeller is moulded, e.g. by injection, with the liner 10 as an insert. The flared end is subsequently swaged by a heated tool (26), Fig. 3, not shown. A ring 20 can be fitted. The material of the propeller can also include an ionic copolymer, and an unsaturated carboxylic acid.
Patent GB-389581-A (GB)
Title: Improvements in or relating to means for evacuating closed vessels
IPC: H01J13/28
Filed: 1931-12-11
Abstract: 389,581. Rotary pumps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birmingham. Dec. 11, 1931, No. 34381. [Class 110 (ii).] A mercury-arc rectifier or other vessel is evacuated by a vapour pump 2 such as a diffusion pump, and a backing pump 3 such as an oil-sealed rotary vane pump, between which a barometric valve 4 is interposed, means being provided to relieve the vacuum on the suction side of the backing pump when that pump is inoperative. Fig. 1 shows a valve 17 for this purpose, opened by a spring, and closed when the backing pump is working by a solenoid 16 receiving current from the motor circuit. Fig. 4 shows a switch which when open breaks the solenoid circuit ; the switch comprises fixed and movable contacts 25, the movable contact being operated by a centrifugal device comprising leaf springs carrying weights 27 and having their ends secured to rings, the movable ring 30 engaging arms on the sliding contact. In a modification, the valve is carried by a leaf spring, and a projection on this spring is engaged by the ring 30 to open the valve.
Patent GB-630782-A (GB)
Title: Improved method of obtaining antimony from sulphurised antimony ores
IPC: C22B30/02
Filed: 1947-12-29
Abstract: A method for obtaining metallic antimony from rich sulphurized antimony ores consists in heating the ore up to its melting temperature and thereafter cutting off such heating and blowing hot air into the mass at such a temperature and in such a quantity that the whole mass is maintained in a fused state and so that, at the point of injection of the air, a temperature is maintained which is substantially constant and is sufficiently high to ensure a local dissociation of antimony sulphide.  Metallic antimony may be periodically extracted from the treated mass of ore, the mass being maintained constant by compensating additions of cold ore.
Patent GB-210936-A (GB)
Title: Improvements in induction-starting synchronous motors
IPC: H02K19/14
Filed: 1922-12-20
Abstract: 210,936. Yamamoto, T., and Kawarada, M. Dec. 20, 1922. Alternating-current motors; exciting.-In an induction-starting synchronous motor having on the stator a secondary winding S, Fig. 1, and on the rotor a primary winding P and also a separate continuous-current commutator winding A connected to the secondary winding S preferably through adjustable resistances R, reactances L are connected in circuit between the commutator brushes B and the secondary winding. A highresistance squirrel-cage winding K is preferably provided on the stator to facilitate starting. When aternating-current is supplied to the rotor through the slip-rings S<1>, the machine starts as an induction motor, but as the speed increases, ard the velocity of the primary field relatively to the secondary winding decreases, the magnetic field of the continuous-current generator is established in one direction or the other. The winding A then supplies continuous-current to the stator so that the machine is synchronized automatically. The resistances and reactances need not be inserted in each phase, but any pair may be used. Fig. 2 shows an induction-synchronous motor M cascaded with an ordinary induction motor N, both machines being preferably directcoupled. The two rotor winding R<a>, P are wound for the same number of phases, but the numbers of poles may be different. Specification 172,603 is referred to.
Patent GB-929240-A (GB)
Title: Improvements in or relating to photo-sensitive semi-conductor devices
Inventor: AVERY DONALD GEOFFREY
IPC: H01L31/00
Filed: 1954-11-30
Abstract: 929,240. Semi-conductor devices. MINISTER OF AVIATION. Feb. 29, 1956 [Nov. 30, 1954], No. 34731/54. Class 37. A photo-sensitive semi-conductor device of the PN junction type comprises a mass of semiconductor material with current carriers of low effective mass 1, in which the body of the mass is of P type conductivity and a surface layer 2 is of N type conductivity so that a rectifying (PN) junction is formed between them, connections being made to the body and the surface layer to define a current path across the junction between the connections, and the thickness of the surface layer being determined so that radiation incident upon the layer can pass through to the junction of the body with the surface layer. The device may be of InSb with the layer 2 of N type having Te or another Group VI element as impurity. By controlling the concentration of impurity, e.g. to provide 5 x 10<SP>19</SP> or 5 x 10<SP>16</SP> electrons per cc., the transmission cut-off wavelength of the surface layer is determined. The Te is included by coating P type InSb with Te and then diffusing it with heat to a depth of 5 to 10 thousandths of an inch. The semi-conductor material may alternatively be InAs.
Patent GB-793518-A (GB)
Title: Method of degasifying or degasifying and gasifying pulverulent or finely granular fuels
IPC: C10B49/00
Filed: 1954-12-01
Abstract: 793,518. Mixing apparatus. METALLGES AKT.-GES. Dec. 1, 1954 [Dec. 4, 1953; Dec. 4, 1953; Dec. 4, 1953; Dec. 4, 1953; Dec. 4, 1953, and June 16, 1954], No. 34855/54. Class 86 [Also in Group XII] Apparatus for mixing a finely divided heat carrier with a finely divided fuel to degasify the fuel (see Group XII) comprises two worm shafts 41 and 42 arranged in a housing and rotating in the same direction; the shafts being fitted along their length with paddles 43 and 44 arranged so that they mutually clean one another. The optimum speed of rotation of the worms lies between 30 and 400 r.p.m. and the speed ratio of the two worms may be 1:1, 1:2 or 1:3. In a modification the paddles attached to the shafts may be of lenticular cross-section (Fig. 6), and may be continuously spiralled. The shafts 41 and 42 may be hollow and a heating or cooling medium circulated therethrough.
Patent GB-192684-A (GB)
Title: Process for the manufacture of patterned inlaid linoleum by means of roller pressure
IPC: D06N7/00
Filed: 1922-12-21
Abstract: 192,684. K÷ln - Rottweil Akt. - Ges. Jan. 31, 1922, [Convention date]. Inlaid linoleum is made by placing pieces of nitrocellulose and gelatinizing medium which fcrm the pattern loose upon a ground strip of the same materiad and uniting the whole by pressure between heated rollers. The ground strip may be dispensed with and the linoleum made by uniting the loose pattern pieces.
Patent GB-863598-A (GB)
Title: Improvements in and relating to apparatus for removing drawn material of circular cross-section from drawing machines
Inventor: SCHMIDT HANS
IPC: B21C1/32
Filed: 1959-10-15
Abstract: 863,598. Drawing metals. SCHWERMASCHINENBAU H. RAU WILDAU VEB. Oct. 15, 1959, No. 34975/59. Class 83 (4). In a draw-bench for material of circular crosssection, the finished material moves laterally out of the machine, down sloping rails 3 which are fastened to the return chains 1. The rails 3 may have notches 12 in which case the material is lifted by arms 7 which are pivoted to the rails 3 by bolts 6. A plurality of the arms 7 are lifted by a member 5 operated by a lifting device 8, which may be mechanically, pneumatically or hydraulically operated. A spring 10 returns the arms. When the draw-carriage is close to the die the rails 3 rest in the lower part of the bed, during the drawing operation the chain 1 runs on slides 4 and is brought to the upper part of the bed. Clips 11 prevent the rails 3 lifting when the arms 7 are raised.
Patent GB-848746-A (GB)
Title: Gearbox for the axle gears of power-driven rail vehicles
Inventor: SCHROEDER ADOLF
IPC: F16H57/023
Filed: 1958-10-31
Abstract: 848,746. Toothed gearing. MAK. MASCHINENBAU KIEL A.G. Oct. 31, 1958, No. 34993/58. Class 80 (1). In a gear-box for driving the axle 4 of a rail vehicle from a driving-shaft 7, which is arranged at right-angles to and crossing the axle 4, through bevel-gears 9, 10, pinion 12 and gear 13, the housing is divided into upper and lower flanged parts 3, 2 along a single parting line 14 in an oblique plane passing through the centres of axle 4 and the pinion spindle 11 and cutting through the bearing bore 17 of one end of the shaft 7 so as to leave a cut-out of greater width than the diameter of shaft 7 or of a bearing-ring arranged thereon. Disassembly of the gear-box is thereby facilitated by ready removal of the lower half of the casing, leaving the shaft 7 supported in the upper half by bearings 20, 21.
Patent GB-807252-A (GB)
Title: Fluid pressure actuated electric switch mechanism
IPC: H01H35/34
Filed: 1956-11-15
Abstract: 807,252. Fluid actuation of switches. LEMBKE, I. C., and WILSON, C. W. Nov. 15, 1956, No. 34994/56. Class 38 (5). A diaphragm 5 clamped between plates 3, 4 carries a plunger 8 acting on a lever 14 pivoted at 13 and biased counter-clockwise by a spring 16 adjustable by a screw 19. The lever 14 has a part 26 adapted to bear on a trifurcated blade spring 21 so as to close contacts 22, 31 on increase of pressure. The contact 22 also cooperates with a contact 37 on a spring 36 which is adjusted by a screw 43 bearing on a semirigid plate 42 having a hole through which the contact 37 projects. Two switches may be arranged with their diaphragms opposite each other and separated by a ring, the pressure being applied through a radial pipe in the ring, Fig. 6 (not shown). The screw 19 may be replaced by a spring-pressed plunger passing through the casing for engagement by a loading- cam or lever, Fig. 7 (not shown).