baber/WOPTO huggingface dataset:
Patent GB-208579-A (GB)
Title: Improvements in the process of agglomerating mixtures of fine ore and fuel in shaft furnaces
IPC: C22B1/214
Filed: 1922-09-14
Abstract: 208,579. Giesecke, C. Sept. 14, 1922. Agglomerating processes.-A process for continuously agglomerating mixtures of finely divided ore and fuel in shaft furnaces consists in charging the top of the furnace with blocks of ore having finely-divided reducing carbon uniformly distributed therein, rapidly heating a relatively shallow layer of said blocks above the combustion zone to reduce the material to lower oxides or metal, but not or only slightly to sinter the same, by means of reducing gas such as flue gas, generator gas, mixed gas and the like, introduced into the combustion zone and burnt by means of an oxidizing gas or atmospheric air passing up the shaft in the opposite direction to the movement of the material to be treated and contacting with the reduced material, oxidizing and sintering it below the combustion zone, and removing the detached hardened blocks continuously from the bottom of the furnace. In a modified process a supplementary quantity of carbon is mixed between the blocks and the reducing gas is regulated in such a manner as to obtain a higher reduction in the material above the combustion zone and an increased oxidizing and sintering temperature below it.
Patent GB-646346-A (GB)
Title: Improvements in or relating to rapid-response direct-current exciter generators
IPC: H02K23/02
Filed: 1945-09-19
Abstract: 646,346. Exciting dynamo-electric machines. MATERIEL ELECTRIQUE S. W. Sept. 19, 1945, No. 25172/48. Convention date, July 8, 1943. Divided out of 646,281. [Class 35] An exciter has shunt or separately excited main poles and auxiliary poles with windings fed from a transformer, the primary of which carries the load current of the main machine. As shown, the exciter has shunt coils 3, 3<SP>1</SP> on the main poles 2, 2<SP>1</SP> and the coils 12, 12<SP>1</SP> on the auxiliary poles are fed from the transformer 14 having its primary in series with the main machine 17. The exciter may have also series excitation, compensating coils, or windings fed from a separate source. Specifications 646,281 and 646,350 are referred to.
Patent GB-1497578-A (GB)
Title: Electrical vacuum switch contact arrangement
IPC: H01H33/664
Filed: 1975-06-12
Abstract: 1497578 Arc extinction in switches SPRECHER & SCHUH AG 12 June 1975 [2 Sept 1974] 25184/75 Heading H1N In a vacuum switch both the fixed 1 and movable 2 contact assemblies each comprise two electrically interconnected hollow cylindrical contacts 7 and 9, 13 and 14, coaxially arranged one within the other, there being an entrainment connection between the two contacts of the movable contact assembly which are movable relative to one another, so that they can move conjointly. The fixed contact assembly comprises an outer contact 7 and inner contact 9 with sheet metal arcing electrodes 11 radially arranged and mutually spaced. The movable contact assembly comprises an outer contact 13 having at its contact making surface a flexible slotted ring 16 forming separated contact elements 16a, and an inner contact 14 with sheet metal arcing electrodes 22 radially arranged and internally spaced. A spring 19 forces the inner movable contact 14 into engagement with the fixed inner contact 9 in the contacts closed position, and a flexible connection 20 allows current to by-pass the spring. On contact opening the outer contacts separate first due to the spring 19 holding the inner contacts in engagement until entrainment ring 25 on the outer contacts hits a co-operating entrainment ring 24 on the inner contacts and rapidly separates the inner contacts, any arc between them being passed to the arcing electrodes 11, 22 for extinction.
Patent GB-476926-A (GB)
Title: Arrangements for connecting symmetrical and asymmetrical high frequency circuits or circuit parts
IPC: H03H7/42
Filed: 1937-09-17
Abstract: 476,926. Valve amplifying circuits; impedance networks. LORENZ AKT.- GES., C. Sept. 17, 1937, No. 25294. Convention date, Sept. 26, 1936. [Classes 40 (iii) and 40 (v)] For coupling a push-pull output arranged symmetrically in relation to earth to a circuit (such as the downleads of an aerial) arranged asymmetrically in relation to earth, the symmetrical circuit is bridged by a centre-tapped impedance and the connection is made to one end and the centre-tap of the impedance through impedances adjusted to form a rejector circuit if the asymmetrical circuit is shorted. As shown in the Figure, the output 1 is bridged by two condensers 2, 3 each having an impedance-j.w. The load resistance 5 (which may be an antenna supply lead), is connected through impedances 4, 6, each of value J.W./2 to the centre-tap t between condensers 2, 3 and one outer end. With this arrangement if resistance 5 is shorted a rejector circuit is formed on the symmetric side 1. Other embodiments are described in which condensers, 2, 3 are replaced by coils and coils 4, 6 by condensers, in which coils 4, 6, are coupled, in which the coils are replaced by series-resonant circuits and in which the asymmetrical circuit is inductively coupled to the symmetrical circuit.
Patent GB-443248-A (GB)
Title: Improvements in and relating to the construction and arrangement of the front springs, wheels, and wheel brakes of motor vehicles
IPC: B60G11/08
Filed: 1934-09-03
Abstract: 443,248. Vehicle spring-suspensions. KERR, F. L., 16, Sauer Street, Randgate, Randfontein, Transvaal, South Africa. Sept. 3, 1934, No. 25305. [Class 108 (ii)] [See also Group XXXIV] In a front wheel suspension a pair of transverse springs spaced apart and interconnected are mounted centrally on the chassis by a ball and socket joint and the spring ends are similarly pivoted to the wheel support. The wheel is also constructed so that the brake shoes are housed within and co-operate with the rim. The transverse springs 5, 6 are mounted on the front transverse chassis member 1 by means of a ball-and-socket joint comprising a ball member 8 secured to the chassis and socket members 7 secured to the springs by bolts 14 and the whole secured by the U-bolts 11. The axle member 15 is provided with off-set portions in which sockets for ball members 17, 18 are provided. The ball members 17, 18 are provided with screwed extensions 19 by which the ends of the springs are secured and by further ball extensions 29 to which a forked lever 30 is jointed by spring-pressed ball sockets in the ends of the lever. The other end of the levers 30 is pivoted to the side members of the chassis and shock absorbers 2 are provided. The wheel comprises a rim in which are positioned a lining 46 and a heat-resisting lining 48. A recess is provided in the rim to give an annular space 49 between the rim 38 and the lining 48. The wheel structure is bolted by means of bolts 50 to the hub and the brake shoes 39 which coact with the interior of the rim 38 are carried by a plate 42 secured to the axle 15, the plate 42 having mounted thereon the actuating brake cam.
Patent GB-979346-A (GB)
Title: Textile drafting
IPC: D01H5/40
Filed: 1961-07-13
Abstract: 979, 346. Levelling fibres. DEUTSCHER SPINNEREIMASCHINENBRAU INGOLSTADT NIEDERLASSUNG DER SCHUBERT & SALZER MASCHINENFABRIK A.G. July 13, 1961 [Jan. 14, 1961], No. 25369/61. Headings DID and D1N. [Also in Division G3] In a device for controlling the thickness of a bundle of fibres being drafted wherein the speed of one of the fibre forwarding means is controlled by the thickness of the sliver, a feed back loop responsive to the speed of said fibre forwarding means is connected with the means controlling the speed of the fibre forwarding means. In Fig. 1 the thickness of a band of fibres 1 to be drafted by pairs of rollers 2 and 3 is measured by rollers 11, 12 and a memory wheel 19 is set up according- ly. The positions of the steel pins of the memory wheel are then read by a choke 18 and the signals thus produced pass into an electronic circuit. Depending upon the magnitude of the signal one of a pair of electromagnets 28, 29 in the circuit is consequently energized and a belt 7 which forms the controlling element of a stepless gear in the drive path to the rollers 2, is moved via a pivoted lever and armature arrangement so that the draft applied to the fibrous band 1 is altered in a thickness regulating way. To compensate for faults in the gearing 6, 7, 8 (e.g. slipping of the belt 7) a generator 10 is driven in accordance with the speed of the rollers 2 as part of a negative feed back loop which feeds signals into the speed control circuit to oppose the signal originating at the choke 18. To override the control during starting up an electrically operated brake 33 is provided to lock the armature and a cut-out switch 34 is provided in the control circuit. In an alternative embodiment the arrangement of electromagnets 28, 29 and armature 30 is replaced by a reversible slave electric motor having two field windings which may be energized in the same way as electromagnets 28, 29, the slave motor controlling the belt shifting lever through a worm and toothed segment arrangement. Other types of electric motors or hydraulic or pneumatic motors may alternatively be used. In a further form the device is used to regulate the thickness of a web being drafted as it comes from a textile card. Since, in this case, the measuring rollers are placed between drafting elements no memory wheel is required and the movements of the lever carrying the movable measuring roller are converted into electrical signals by a core, mounted on the lever, moving in a choke.
Patent GB-1218446-A (GB)
Title: Epoxy resins
Inventor: KUBENS ROLF
IPC: C08G59/40
Filed: 1968-05-28
Abstract: 1,218,446. Laminating with epoxy resins. FARBENFABRIKEN BAYER AG. 28 May, 1968 [1 June, 1967], No. 25389/68. Heading B5N. [Also in Division C3] Laminates are prepared using as adhesive a reaction product of a polyepoxide with an aromalic cyanic acid ester containing at least two cyanate groups per molecule, e.g. of general formula R(OCN) n  in which n is # 2 and R is an aromatic radical which may contain bridge members. In examples, a glass fabric with linen weave is laminated using a mixture of a diglycidyl ether of bisphenol A (epoxide equivalent 190, 135 parts by weight) and 4,4<SP>1</SP>-dicyanatodiphenyldimethylmethane (100 part by wt.) which has been heated 3 hours at 150 C. and cooled to room temperature. The fabric is laminated in a pressure mould overnight at 150 C. and post-cured 3 hours at 180 C. In another example iron sheets are laminated together by heating 30 mins./180 C. with a reaction product of a diglycidyl ether of bisphenol A (epoxide equivalent 3000) and 1,3-dicyanatobenzene.
Patent GB-281819-A (GB)
Title: Improvements in heat-exchange apparatus
IPC: F24H1/14
Filed: 1926-10-12
Abstract: 281,819. Hatfield, H. S. Oct. 12, 1926. No Patent granted (Sealing fee not paid). Water-tube boilers.-Water traverses a flat tube A heated by gases passing as from a burner F around the convolutions of the tube in a zigzag path and in a plane at right angles to the plane of the zig-zag of the tube. Plates C may be used to guide the gases, or the tube convolutions relatively stepped for this purpose.
Patent GB-275045-A (GB)
Title: Improvements in or relating to photogravure printing machines
IPC: B41F9/00
Filed: 1926-10-13
Abstract: 275,045. Greaves, W. Oct. 13, 1926. Rotary intaglio machines; tripping-arrangements.-In a rotary photogravure printing-machine of the two-revolution type having a printing-cylinder 2 with a photogravure plate 3 clamped thereto, the impression cylinder 1 is mounted in eccentric bearings 20 which are rotated by a cam 18 and lever-and-link mechanism 19 to throw the cylinder 1 off impresion for alternate revolutions. To prevent vibration as the cylinders 1, 2 come together, the bearers are brought into contact while the gap in cylinder 2 is opposite the gap in cylinder 1, and the pressure between the cylinders is gradually increased. Inking-apparatus.-The cylinder 2 is inked by a roller 21 and wiped by a reciprocating scraper which returns superfluous ink direct to the trough 22. Printing-surfaces; set-off, preventing. - The plate 3 is secured to the cylinder 2 by a wedgeshaped clamping-bar 5 actuated by screws 6, and at the other end by a screw-operated clamp 8 adjustable by a screw 11 on a bracket 9 located in a groove in cylinder 2. A lining 12 of ink absorbent material such as rubber, fabric, or paper, is arranged between the plate 3 and cylinder 2. This lining serves to absorb any ink which may tend to pass between the plate and cylinder, and also as a cushioning agent. and forms the subject-matter of Specification 275,492.
Patent GB-316798-A (GB)
Title: An improved electric mine fuse
IPC: F42B3/103
Filed: 1928-09-05
Abstract: 316,798. Schmitt, N., and Schmitt, O. Sept. 5, 1928. Blasting fuzes. - Electric blasting detonators are fired by means of a high-frequency supply of the order of 50,000 to 4,000,000 cycles per second, as employed in wireless telephony and telegraphy. The detonator 6 for this purpose may contain a charge 5 covered with loose metal powder or foil 7; and over this. is a fuze head 2 surmounted by an insulating mass 4, the underside of which may be coated with graphite, or asuminium. The fuze head 2 is connected to the end of a single wire 1, which produces a spark at the fuze head, no return lead being necessary on account of the high frequency used.
Patent GB-1397380-A (GB)
Title: Periclase refractories
IPC: C04B35/043
Filed: 1973-05-29
Abstract: 1397380 Imposed periclase refractories KAISER ALUMINIUM & CHEMICAL CORP 29 May 1973 25527/73 Heading C1A A periclase grain refractory containing less than 0À1% by weight B 2 O 3  and comprising more than 95% by weight MgO and, as subsidiary components, CaO, SiO 2 , Al 2 O 3  and either or both Fe 2 O 3  and Cr 2 O 3  wherein the relative amounts of the subsidiary components are controlled so that there are 2-3 moles of CaO present for each mole of SiO 2  plus Al 2 O 3  plus Fe 2 O 3  and/or Cr 2 O 3 , and so that there is at least one mole of Fe 2 O 3  for each mole of Al 2 O 3 . Substantially all the MgO in the grain is present as periclase, substantially all the SiO 2  is present as a dicalcium silicate or tricalcium silicate, substantially all the Al 2 O 3  is present as brownmillesite or the corresponding chromium compound and substantially all the Fe 2 O 3  is present as either brownmillesite or dicalcium ferrite or the corresponding chromium compounds, the weight ratio of calcium silicate to iron-containing compounds being from 2 : 1 to 20 : 1.
Patent GB-723837-A (GB)
Title: Improvements in or relating to arc-extinction devices for electric circuit-breakers
Inventor: ANDRE LATOUR
IPC: H01H9/34
Filed: 1952-10-13
Abstract: 723,837. Arc-rupturing in switches. ETABLISSEMENTS MERLIN & GERIN. Oct. 13, 1952 [Oct. 15, 1951], No. 25562/52. Addition to 702,834. Class 38 (5). .The centre C of the surface, against which the arc develops, of each insulating plate of the parent Specification is so spaced from the tips of A, B of the conducting components 3, 4 that the angle A C B is equal to or less than 45 degrees. Spacing members 11 between adjacent plates limit sideways expansion of the arc.
Patent GB-182374-A (GB)
Title: An improved construction of bed covering
IPC: A47G9/02
Filed: 1921-09-27
Abstract: 182,374. Cooper, G. W. Sept. 27, 1921. Sheets; blankets; counterpanes and quilts.- A bed-covering combining the properties of a blanket, sheet, and a quilt covering is formed with an outside covering A of heavy twill fabric &c., to which an inside lining comprising a light cotton sheet &c. B is sewn, the space between the two being packed with new wool, which is prevented from shifting by quilting &c. The lining B extends over the bed, and the covering A extends beyond the lining along its two sides and bottom, so that it may be tucked underneath the mattress.
Patent GB-744795-A (GB)
Title: A new or improved electrical connector and method of manufacturing the same
IPC: B60M5/00
Filed: 1953-09-17
Abstract: 744,795. Couplings; rail bonds. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Sept. 17, 1953 [Sept. 22, 1952], No. 25706/53. Class 38 (1). [Also in Group XXII] A flexible connector, particularly for use as a rail bond, comprises a metal band or wire 1 wound into a flattened ring, two contact shoes 2 of channel section being attached to the ring by means of integral, bent-over lugs 4. Holes 5 are then punched through the contact shoes and the band, each shoe is placed on a rail 7, and a soldering or welding stud inserted in each hole and melted to secure the shoes to the rails. Specification 681,586, [Group XXII], is referred to.
Patent GB-649882-A (GB)
Title: Improvements in foot-aids
IPC: A43B7/22
Filed: 1948-10-04
Abstract: 649,882. Foot supporting pads. THOMSON, F. D. Oct. 4, 1948, No. 25749. [Class 17(ii)] A foot-supporting pad 23, Fig. 6, has strips 21 of pliable metal or plastic material secured to its underside by pieces of adhesive material 22. The strips 21 extend beyond the pad and are either turned over the edge of a loose insole 24, Fig. 9, or are inserted through slots 26, Fig. 16, and are secured to the underside by pieces of adhesive material 25. Different shapes of foot-arch supporting pads 23 and callous or corn-pads 20, Fig. 16, are described.
Patent GB-259385-A (GB)
Title: Improvements relating to apparatus for treating liquids and particularly to the softening of water
IPC: C02F1/52
Filed: 1925-10-15
Abstract: 259,385. United Water Softeners, Ltd., and Jones, J. F. Oct. 15, 1925. Freely-flowing material mixed in conduits.-- In apparatus for treating liquids with reagents in which the liquid and reagent are mixed in one tank and passed thence through a pipe to a reaction tank, the pipe is made to project upwards into the mixing tank above the liquid level, the .upper end being open, and is formed with a restricted inlet passage for the mixture, so that a relatively large amount of air is drawn down and serves to agitate the liquid in the reaction tank. The apparatus shown is for softening water by means of milk of lime or lime water. The water and reagent are supplied to a mixing tank 4 from tanks 2, 3 respectively. The mixture enters a pipe 7 through one or more slots 8, the effective aperture of which may be regulated by means of a slotted sleeve 9. The reaction tank 5 may be provided with baffles 11, 12, a vertical cylinder 13 for the escape of air and a filter bed 14. Instead of longitudinal slots the pipe 7 may have a longitudinal series of apertures or one or more circumferential slots. In modified apparatus, shown in Fig. 4, a portion only of the water passes through the tank 2, the remainder being supplied to a tank 16 and thence direct to the reaction tank through a pipe 17 having its upper portion arranged like the pipe 7, so that air is drawn down.
Patent GB-1146896-A (GB)
Title: Record processing apparatus
IPC: G06K17/00
Filed: 1966-06-09
Abstract: 1,146,896. Card selection. HONEYWELL Inc. 9 June, 1966 [21 June, 1965], No. 25773/66. Heading G4M. A notched card 10 is released from a stack by rotation of selected rods 14 and falls a short distance on to a table 34. A bar 42 on an endless belt 38 then projects the selected card 10a edgewise out of the stack, and its leading edge is deflected by guide 50 on to vacuum capstan 54. After one or more revolutions past magnetic read/write head 58, the card 10d is released and travels under its own momentum along a raceway 64 to a return capstan 68 which directs the card along a raceway 78 to a vacuum lift plate 82 which is actuatable to raise the card on to relieved portions of rods 14 and then to blow the card into the stack proper. Photo-cells are placed in various positions along the card path to co-ordinate the selection, read/write and load operations. The raceways are provided with air jets to cushion the cards during travel therethrough, and cards in the stack are separated from each other by directing a stream of air on to one edge of the stack.
Patent GB-781353-A (GB)
Title: Improvements in bearing structures particularly for x-ray tubes
IPC: F16C33/60
Filed: 1955-09-09
Abstract: 781,353. Ball bearings. GENERAL ELECTRIC CO. Sept. 9, 1955 [Sept. 13, 1954], No. 25887/55. Class 12 (1). An anode structure 12 of an X-ray generating tube is rotably mounted in a sealed evacuated envelope 14 by means of ball bearings 24, 25, the bearing 24 permitting limited relative radial and axial movement between the relatively rotating parts, and the bearing 25 comprising a pair of angular contact bearings 36, 36<SP>1</SP> mounted in abutting relatively-opposed relationship and adapted to prevent relative axial movement between the relatively rotating parts. The inner races of the bearings are spaced apart by a sleeve 45 and are secured to a central stem 20 which is rigidly mounted in the envelope 14 by a cup-shaped metal mounting and seal 21. The anode structure comprises a frame 27 attached to a member 26 in which the outer races of the bearings are mounted, the outer race of the bearing 24 being free to slide axially in the member 26 and the outer races of the bearing 25 being fixed in the member 26.
Patent GB-819270-A (GB)
Title: Animal lead
IPC: A01K27/00
Filed: 1956-08-24
Abstract: 819,270. Leashes. LAING, C. Nov. 14, 1957 [Aug. 24, 1956], No. 25948/56. Class 62. An animal lead 1 formed with a loop 2 is provided with an adjustable clip comprising two flanged plates 4, 5 pivotally connected by a pin 7, the clip permitting alteration of the effective size of the loop and having a self-locking action when the plate ends adjacent the effective portion of the loop are urged apart. A spring 10 may be positioned on the pin with its ends in engagement with the plates so that flanged gripping surfaces 8, 9 are biased together.
Patent GB-673788-A (GB)
Title: Improvements in or relating to circuit-arrangements for use in automatic signalling systems of telephone systems
IPC: H04Q1/36
Filed: 1950-10-25
Abstract: 673,788. Telephone exchange systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 25, 1950 [Oct. 28, 1949], No. 25998/50. Class 40 (iv). A relay which has to be operated over a conversation wire while conversation is taking place comprises a short - circuited winding. This winding damps out the currents induced in the wire due to the change of flux in the relay on operation and also slows up the rate of operation of the relay so reducing the rate of change of flux. The relay may also comprise a thick residual stop for the same purpose. The relay in question Z may be a metering relay operated by metering pulses from a time zone transmitter TZO which are smoothed by the network R, C6, L4, C5, L3 and applied to the b-wire.
Patent GB-425907-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K23/24
Filed: 1933-09-20
Abstract: 425,907. Dynamos. HANSEN, K. L., 2916, North Prospect Avenue, Milwaukee, Wisconsin, U.S.A. Sept. 20, 1933, No. 26013. Convention date, Jan. 9. [Class 35] Exciting ; polepieces ; commutating poles and windings.-A generator for arc-welding is provided with a shunt winding 2 connected to auxiliary brushes A and a shunt winding 1 and stabilizing-winding 3 connected to the main brushes M. The windings 1, 2 act cumulatively and are wound on a comparatively narrow-neck 8 of the pole 9 and are separated by magnetic bridges 12. The stabilizing winding 3 passes through openings 10, 11 in adjacent poles and surrounds the commutating poles 4. A strip of metal 14 is laid in the opening 10 and connected to a bar 15 at the other end of the pole to form a short-circuited winding.