baber/WOPTO huggingface dataset:
Patent GB-988836-A (GB)
Title: Improvements in or relating to permanent magnet materials
IPC: C04B35/26
Filed: 1963-07-30
Abstract: 988,836. Magnetic compositions. A. COCHARDT. July 30, 1963 [Aug. 1, 1962], No. 30111/63. Drawings to Specification. Heading H1H. A permanent magnetic material has a structure including two phases, at least one of which is barium and/or strontium and/or lead ferrite, and both phases are ferromagnetic ferrites. The secondary phase may be from 1 to 15% (preferably 3 to 10%) of the total weight, and may melt below 1280 C. The raw materials of the primary phase (e.g. Fe 2 O 3 , SrCO 3 ) are pre-sintered, then ground and mixed either with the raw materials of the secondary phase or with pre-sintered and ground secondary phase material, then finally sintered. Specifications 988,834 and 988,835 are referred to.
Patent GB-1425752-A (GB)
Title: Box-annealing of steel strip
IPC: C21D9/663
Filed: 1973-06-25
Abstract: 1425752 Annealing coils of strip NIPPON STEEL CORP 25 June 1973 [23 June 1972] 30142/73 Heading C7N A coil of steel strip is so formed that at least one end of the coil has one or more projections upon which the coil stands on the base-plate of an annealing furnace. The projections may be produced by alternately moving the strip to left and right during coiling, or by notching or otherwise shaping the edge of the strip.
Patent GB-309825-A (GB)
Title: Improvements in neck-tie retainers
IPC: A41D25/14
Filed: 1928-10-18
Abstract: 309,825. Binnemann, R. Oct. 18, 1928. Necktie -retainers. -A necktieretainer comprises a single piece of resilient wire bent as shown in front elevation to form two substantially parallel members a, b, one in front of the other, which merge at the upper end into a loop d for attachment to the collar stud and a loop g on which the vertical loop of the tie is formed, and, at the other end, into a loop h to receive the ends of the necktie. A finger piece d<1> may also be provided and the wire may be bent as at. h<1> to form a mount for a piece of jewellery. The ends of the wire are hooked together at c, e near the loop d.
Patent GB-1158001-A (GB)
Title: Improvements in or relating to Condition Responsive Bridge Circuits
IPC: G05B1/02
Filed: 1966-07-05
Abstract: 1,158,001. Impedance measuring bridge circuits. ROBERTSHAW CONTROLS CO. July 5, 1966 [July 19, 1965], No. 30189/66. Heading G1U. A bridge circuit 10 for providing an output signal representing the variation of a sensor resistance R3B incorporates two reference arms R1, R2 connected to the bridge supply through half wave rectifiers D1, D2, the other two arms R3, R4 including the sensor R3B. The bridge output terminals 12, 14 are connected to a differential amplifier 22 which provides an output into a load L proportional to the unbalance in the bridge during each alternate half cycle of the power supplied to the bridge. The gain of the amplifier and hence the proportional band of operation is controlled by variable resistor R9. Zero setting is achieved by resistor R4A. The sensor and adjustable arms R3, R4 may be incorporated in a second similar bridge arrangement 32. The signal in the output winding L of the first bridge is then used to control the monitored system in one sequence of alternate half cycles while the signal in the output winding LA of the second bridge provides a measurement indication in the opposite sequence of alternate half cycles.
Patent GB-215028-A (GB)
Title: Improvements in the manufacture of artificial silk and like materials from viscose solutions
IPC: D01F2/08
Filed: 1922-11-04
Abstract: Artificial silk of the lower denier numbers is prepared by spinning viscose solution into an "acid-salt" bath containing 1-8 per cent of ammonium sulphate or other ammonium salt.  By the use of this bath a greater drawing-out of the filament is permissible.  A suitable bath contains 20 per cent sodium sulphate, 7-14 per cent sulphuric acid, and 1-8 per cent (preferably 6 per cent) ammonium sulphate; the sodium sulphate may be replaced partly or wholly by another sulphate such as potassium or magnesium sulphate.  After leaving the coagulating-bath the filaments may be treated, for instance in the guider-funnel, either with the same bath or with another bath or even with water; and the filaments are finally delivered to a centrifugal box or otherwise collected in yarn form.  Ammonium sulphate may be recovered from the wash waters &c.
Patent GB-1024978-A (GB)
Title: Treatment of polyolefin surfaces
IPC: C08J7/12
Filed: 1963-07-30
Abstract: At least one surface of a polyolefine, e.g. propylene polymer or copolymer article is subjected to the action of chlorine and/or bromine in the presence of visible light, the amount of halogen combining with the polymer being no more than 1%.  The article may be oriented polypropylene film and may be subjected at room temperature and atmospheric pressure for 1-30 sec. to the action of gaseous or aqueous chlorine or sodium hypochlorite. A package may be prepared by heat-sealing the treated film.ALSO:A polyolefin article e.g. film, sheet, tube or bottle, which has been surface treated with chlorine and/or bromine in the presence of visible light, the amount of halogen combining with the polymer being no more than 1%, is coated with inks, nitro-cellulose, adhesive, polyamides, polyvinyl acetals, polyethylene terephthalate, vinyl acetate/vinyl chloride copolymers, vinylidene chloride copolymers or chlorinated rubbers.
Patent GB-699290-A (GB)
Title: Improvements relating to emergency escape apparatus for aircraft
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B64D25/12
Filed: 1950-12-11
Abstract: 699,290. Dropping cabins from aircraft. M. L. AVIATION CO., Ltd. Feb. 12, 1952 [Dec. 11, 1950], No. 30263/50. Class 9(ii) [Also in Groups XXV and XXXIII] In an aircraft emergency escape apparatus the cabin forming the nose of the aircraft can be detached from the fuselage and brought to earth by parachute: Separation of the cabin and fuselage is effected by a cartridge-operated mechanism which first disengages the couplings securing the cabin to the fuselage, breaks the electric control circuits, erects the cabin stabilizing fins and finally causes forceful separation of the cabin and fuselage. As shown, Fig. 1, the cabin 1, is separable from the fuselage 2 at 4. The cartridge operated gun, 5, Fig. 2, operates the fins 17, electrical separation 18, and mechanical couplings 15 through the linkwork 6, 9, 10, 13, 14, 15, 16. During the final period of its stroke the gun operates a telescopic cylinder (not shown) which thrusts the cabin and fuselage apart. The parachutes (not shown) are released by a static line attached to the fuselage and three sets of progressively larger parachutes are opened and then detached at predetermined intervals by explosive devices before the final group is opened. Specification 645,605, [Group XXVIII], is referred to.
Patent GB-737438-A (GB)
Title: Polarized electromagnetic relay
IPC: H01H51/22
Filed: 1953-11-02
Abstract: 737,438. Electromagnetic relays. TRIGGS, W. W. (Hart Manufacturing Co.). Nov. 2, 1953, No. 30265/53. Class 38 (5). A polarized relay comprises a plate-like armature 41 having projections 43 on its opposite edges fixed to a spring hinge 44 by rivets 45, the spring having the shape of the Roman numeral II (Fig. 5). The armature is formed on opposite sides with horizontal slots 42 having semi-circular extensions and carries a contact 53 and a counter-balance weight 53a. The projecting side limbs of the upper and lower bars of the hinge 44 are clamped between two conducting brackets 50 fixed by screws 51 to opposite posts 16 of a mounting bracket 15 (Fig. 3). Four btmdles of E-shaped core laminations 21 are fixed by screws 20 to the sides of the posts 16, the bundles being arranged in two sets of opposed pairs, each pair being respectively situated on opposite sides of the hinge 44. The lowest limbs 25 of the bundles comprise laminations of different length arranged alternately so that the limbs 25 of opposed bundles interfit and there is no gap, the upper limbs 23, 24 being spaced apart substantially opposite the four corners of the armature (Fig. 9). The limbs 25 of each pair of lamination bundles carry a coil 31, the two coils being arranged in magnetic parallel so that the four limbs 23, 24 opposite one face of the armature have one polarity and those opposite the other face, the opposite polarity. Permanent magnets 70, 71 are inserted between the upper ends of the two pairs of lamination bundles, like poles of the magnets being opposite each other (Fig. 10). An insulating bracket 55 mounted on one side of the relay carries a pair of contact fingers 57 which extend through the space between the limbs 23, 24, the free ends of the fingers being adjustable by screws 63 in a bracket 60 mounted on the opposite side of the relay (Fig. 7). When the coils 31 are not energized, the magnets 70, 71 exert equal and opposite forces 80 on the armature and the latter remains balanced. Upon energization of the coils 31, an additional flux 81 is produced (the direction depending on the polarity of the energizing current) and a torque 82 in the appropriate direction is exerted on the armature so that the contact 53 engages one or other of the fingers 57. The relay may be enclosed in a cover (Fig. 1, not shown) having an air-tight joint with the base 10 and may be evacuated through a tube 13 and filled with an inert gas.
Patent GB-334096-A (GB)
Title: A spring support for seats, seat backs and the like
IPC: A47C31/04
Filed: 1929-10-07
Abstract: 334,096. Debelle, L. Oct. 7, 1929. Addition to 282,822, Cushions.-A seat or seat back comprising a main blade spring a backed by a C-shaped blade spring c as described in the parent Specification has its ends joined by an inextensible link l. Links f are preferably used to connect one or both ends of the main spring to the supporting frame. An overhanging front edge springing is described in which the front of the main blade spring is supported by another curved blade spring.
Patent GB-210859-A (GB)
Title: Improvements in or relating to fenders or fire guards
IPC: F24B1/192
Filed: 1922-11-07
Abstract: 210,859. Hasell, W. Nov. 7, 1922. Fenders; fire-guards.-A combined fender and collapsable fire-guard comprises a base 1, 2, forming a curb or fender which is provided with pockets to accommodate the collapsed guard, the upper rail 5, 6 then serving as the top of the curb. The front of the guard is formed of two series of rods 7, 8 which are pivoted to the upper member 5 and to one of a pair of T-shaped members 9, 10 slidably arranged in guides 12 fitted within the front base member 1. The ends of the guard each comprise two jointed rods, the rear rods 14 being pivoted at their upper ends to tongues 16 secured to the rail 5 and at their lower ends to T-irons 21 and the joints being constituted by butt hinges 17 provided with locking-plates 20, Fig. 5, slidable in guide-ways 18. The forward rods 15 may be similarly pivoted in which case tho joints 17 are adapted to break in the opposite direction or the lower ends of the rods may carry pins 27, Fig. 3, which engage when the guard is extended, in recesses 23 in tongues 24 secured to the T-irons 21. In this case, before collapsing the guard, the rods 15 are folded up and secured by clips 25 as shown in Fig. 3. In a modification the end rods are formed at their lower ends with pins each engaging in a vertical slot in an upstanding tongue, a lateral extension of the upper end of the slot being provided to support the pin when the guard is extended. The rear ends of the vertical flange of the top member 5 are cut away to provide securing hooks 29. The end portions of the guard may be formed according to one Provisional Specification of lazy-tong members and, according to the other Provisional Specification, of rods made in a number of short sections some of which are hinged together and some connected telescopically.
Patent GB-1147677-A (GB)
Title: Coated leather
Inventor: BROMILOW PETER WINTON
IPC: C14C11/00
Filed: 1966-07-06
Abstract: 1,147,677. Coating leather. FISONS INDUSTRIAL CHEMICALS Ltd. 29 Sept., 1967 [6 July, 1966], No. 30436/66. Heading B2E. Leather, leather sheet or leather board (made from leather scraps) is [Strengthened by applying thereto an acrylic sealing coat and, thereafter, a layer of plastisol containing a blowing agent or entrapped gas bubbles and heating to form an expanded foam layer. The sealing coat may be applied by pad, spray or curtain coating and may comprise an aqueous dispersion of an acrylic polymer or a copolymer with an acrylic or vinyl ester, butadiene or styrene. The plastisol may be applied by spraying, knife coating or reverse roll coating and may comprise a polymer or copolymer derived from vinyl chloride, vinyl acetate, vinyl alcohol, vinylidene chloride, styrene, butadiene, acrylonitrile, acrylates, 'meth.acrylates, polyamides, polyolefins or polyurethanes, and may contain plasticisers, stabilisers and pigments. If a blowing agent is used, an intermediate heating stage may be carried out without decomposition thereof. If a pre-foamed plastisol is used, gas bubbles, e.g. air or nitrogen, may be introduced mechanically. The expanded layer may be formed by heating at 185-190‹C in hot air ovens or by infra-red or .radio-frequency heating.
Patent GB-701291-A (GB)
Title: Improvements in, and relating to, light metal pistons for internal combustion engines
IPC: F02F3/04
Filed: 1950-12-14
Abstract: 701,291. Pistons. MAHLE, H., [trading as MAHLE KOMMANDIT-GES.]. Dec. 14, 1950 [Dec. 22,1949 ; June 27, 1950]; No. 30548/50. Class 122 (1) In a light metal piston for an internal combustion engine whose head 1 is partially separated from its skirt 4 by transverse slots 5, the skirt has insertions 7 of a metal whose co-efficient of thermal expansion is different from that of the skirt and the resistance of the skirt to deformation owing to bi-metallic action is increased towards the open end of the skirt by decreasing the effectiveness of the insertions near the open end of the skirt and/or strengthening the part of the skirt near the open end thereof. The insertions which embrace the gudgeon pin bosses 3 are cast into projections 6 of the skirt and have holes 8 to facilitate adhesion. The middle part 72 of insertions is of progressively decreasing horizontal length towards the lower end thereof, Fig. 1, or this part has considerably less axial height than the side portions 71 of the insertions, Fig. 2. Instead of or in addition to shaping the central part of the insertions the lower part of the skirt may be strengthened by transverse ribs.
Patent GB-1214520-A (GB)
Title: Compaction vehicle
IPC: E01C19/26
Filed: 1968-06-27
Abstract: 1,214,520. Road and like rollers. HYSTER CO. 27 June, 1968 [7 Aug., 1967], No. 30722/68. Heading B7H. In a compactor vehicle comprising a steerable roller 12 and a driven roller 14 at opposite ends of a frame 10, an engine 37 carried by an intermediate frame portion 18 between the rollers 12, 14 and a pair of seats 50, 52 carried by the frame, a horizontal platform 19 on which a seated operator places his feet is disposed vertically at a level below the upper limit of the rollers 12, 14 and horizontally between the rollers, an engine housing 36 extends upwardly from the platform 19 to one side of the seats 50, 52, and each seat faces inwardly from a position near the side of the intermediate frame portion 18 so as to provide a clear line of vision from the seat to the ends of the rollers 12, 14 on that side of the vehicle. The driven roller 14 is mounted in narrow side frame members 16, 17 extending from the intermediate frame portion 18, and the steerable roller 12 is mounted in a yoke 22 connected by a trunnion 24 to a narrow gooseneck 20. A steering wheel 56 and a directional and speed control bar 54 are positioned within reach of an operator in either seat 50, 52. Housings 40, 41 beneath the seats 50, 52 accommodate a battery 42, hydraulic tank 43 and gasoline tank 44. A water tank 46 beneath the platform 19 supplies a sprinkler system. A hydrostatic pump 58 driven by the engine 37 is connected through lines 64, 65 in the side frame member 16 to an hydraulic motor 68 mounted in one end of the driven roller 14. A drive shaft connected to the hydraulic motor 68 extends through the driven roller 14 and drives the latter through planetary reduction gearing 72 mounted within the other end of the roller. A drum brake 62 which acts on the reduction gearing 72 is operated by a parking brake control lever 60. The hydrostatic pump 58 includes control means which automatically reduce the pump output to avoid stalling of the engine 37 if the resistance to movement of the vehicle becomes excessively high.
Patent GB-179567-A (GB)
Title: Method of producing an artificial fuel
IPC: C10L1/32
Filed: 1920-11-01
Abstract: In fuels consisting of a mixture of finely-divided solid combustible, such as coal, peat, lignite, and cellulose from beet-sugar refineries or from pulp mills, and coal tar, coaltar fuel oils, or petroleum or mineral oils, the suspension is stabilized by thickening the oil by means of oleates, stearates, palmitates, or paraffin or other wax substances.  Alcohol may be added.  In examples, 2lb. of coal passing a sieve of 200 strands per linear inch and 1 gallon of petroleum fuel oil, or equal parts of coal and mineral oil with 15-30 per cent of the stabilizer, are used.  Solid fuels may be treated in this manner to enable them to be transported by pumping.  Specification 17729/13 is referred to.
Patent GB-1466242-A (GB)
Title: Catheter valve
IPC: A61M39/00
Filed: 1973-06-29
Abstract: 1466242 Valves MATBURN (HOLDINGS) Ltd 21 June 1974 [29 June 1973] 30966/73 Heading F2V In a catheter valve, opened by the attachment of a syringe 5 to an inlet 4, a valve closure member 7 which may be of rubber or rubber-like plastics material has an integral resilient biasing element 9 urging the closure element towards a seat 6. The end of the biasing element bears against a valve retaining means 10 in the form of a plurality of inwardly directed lugs. The end of the syringe engages a spigot 8 on the closure member which is guided by three inwardly projecting ribs in the valve body 1.
Patent GB-189119-A (GB)
IPC: F22D1/42
Filed: 1922-11-13
Abstract: 189,119. Leidenroth, G. Nov. 15, 1921, [Convention date]. Feed-water, heating.-A condensing steam-locomotive has a blower h to draw flue gases from the smoke-box f through tubulous feed-heaters a arranged at the sides of the boiler, in series or in parallel, before forcing them into the smoke stack. A damper m is provided to cut out the feedheater when an auxiliary blast pipe n is in use. The blower is driven independently of the main engine. According to the Specification as open to inspection under Sect. 91 (3) (a) the blower may be arranged to deliver air to the grate instead of operating in the way shown. This subject-matter does not appear in the Specification as accepted.
Patent GB-244465-A (GB)
Title: Improvements in steam boilers
IPC: F23M5/08
Filed: 1925-12-08
Abstract: 244,465. Kohlenscheidungs-Ges. Dec. 11, 1924, [Convention date]. Addition to 241,573. Pulverulent-fuel furnaces. - In the boiler described in the parent Specification, an economizer and air-preheater are so arranged in the flues that they form heat-absorbing means between the outer wall of the setting and the more highly heated portions of the side walls of the combustion chamber. The gases from the water-tube boiler d pass downwardly through an economizer s and an air pre-heater r. placed in the flues. Additional air for combustion is supplied through openings o in the hollow end walls of the combustion chamber. The flues are so shaped that the direction of flow of the gases is changed in their passage between the heaters. The bottom of the flues is formed as an ash hopper t. The water-tubes g of the screen at the bottom of the combustion chamber open into headers h, i connected to the boiler drums by tubes k, l.
Patent GB-1271691-A (GB)
Title: Improvements in and relating to electric stepping motors
Inventor: BREBBIA GIORGIO VISCONTI
IPC: H02K37/10
Filed: 1969-06-19
Abstract: 1,271,691. Electric motors. G. V. BREBBIA and F. V. BREBBIA. 19 June, 1969 [4 July, 1968], No. 31054/69. Heading H2A. An electric stepping motor comprises a cylindrical PM rotor and two stators, the first being a cylindrical PM and the second an electromagnet comprising a winding enclosed between two soft magnetic flanges having protuberances forming polepieces, the motor further comprising a toothed body of soft magnetic material to effect unidirectional rotor movement. In the motor shown disassembled, the first and second stators, 2 and 3, are mounted on a stationary shaft 6, Fig. 3 (not shown), with their poles in alignment; a toothed ring 4 is also mounted in the shaft with its teeth displaced half a tooth width from the poles of stators 2 and 3 in the desired direction of rotor movement. The cylindrical rotor 1 is magnetized on its inner periphery to have the same number of poles as stators 2 and 3. On closing the switch 5 the rotor moves round one pole pitch and on opening the switch the rotor moves round another pole pitch under the action of stator 2. In modifications, the rotor may be discoidal and located radially within the three stator parts, or the toothed ring 4 may be mounted on the rotor.
Patent GB-250303-A (GB)
Title: Improvements in apparatus for use in the treatment of artificial silk and other fibrous materials
IPC: D01D10/04
Filed: 1924-12-31
Abstract: 250,303. Viscose Co. Dec. 31, 1924. Addition to 226,808. Reels or bobbins.-Relates to apparatus for use in the washing, dyeing, &c. of artificial silk and other fibrous materials by the method described in the parent Specification according to which the cake of silk is placed over a collapsable rotating carrier, and the liquid is caused to penetrate and pass through the material by the action of centrifugal force alone. According to the present invention, the construction of the carrier is simplified in that the gripping arms 67 are pivoted in flanges 68 carried by the central cylinder 56, and the lower end of this cylinder is slotted to enter castellations 58 on the driving-head 59; the slotted base plate 71 is flanged at its inner edge to engage the flange 68 at the lower end of the cylinder 56, and is there held in place by the parts 74 of the arms 67 which are themselves held in position by washers 70 and pins 69 passed through their ends; collars 78 on the upper ends of the arms 67 prevent the passage of particles of metal &c. from the pivots to the cake of silk: a disc 75 of rubber or similar inert material is preferably secured on the base-plate 71. In the construction just described, the weighted bars used in the apparatus of the parent Specification may be omitted. As a further modification, the carrier on which the silk is washed, &c., may be adapted to act as the bobbin, for which purpose the gripping arms 82, Fig. 4, are constructed to be parallel to the axis of the perforated cylinder 79, and the latter is adapted to be mounted on the driving-spindle 83, driving connection being secured by means of pins 86 carried by a head 85 fast on the spindle and by holes 87 in the base-plate 88 and flange 81, which holes register when the arms are brought to the unturned position, and a second connection may be made at the opposite end of the spindle by means of studs 89 which enter notches 90 in the latter. In a modification of this construction, the pivoted arms are dispensed with, being replaced by a perforated or reticulated cylinder 92, Fig. 6, split longitudinally and mounted between caps 96. 97, a dog 95 on the former serving to move the cylinder distended during winding; the drive is transmitted to the other cap 97 by means of pins 86 which enter recesses in the cap, and from the latter to the winding cylinder 92 by pins 98; alter winding, the cap 96 is removed releasing the cylinder 92, and the latter is then mounted on the coned end of a vertical rotating spindle, for which purpose the cap 97 is provided with a coned seating 104.