baber/WOPTO huggingface dataset:
Patent GB-1193053-A (GB)
Title: Electromagnetic Devices.
Inventor: SAKMANN WALTER HANS
IPC: B41J9/36
Filed: 1969-01-28
Abstract: 1,193,053. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 28 Jan., 1969 [27 Feb., 1968], No. 4666/69. Heading B6F. [Also in Division H1] An electromagnetic print hammer device comprises a leaf spring, incorporating at least a portion of magnetizable material, anchored at one end so that it can be attracted into contact with the shaped pole faces of a plurality of electromagnets arranged side by side transversely to the longitudinal axis of the spring, the shaped pole faces being curved nearest the anchored end of the spring and then changing to a tangent to the curve. As shown, the print hammer comprises a spring 1 which is clamped at its lower end to a non-magnetic member 3a, and at its upper end carries three wafers 6a, b, c of magnetic material applied by plating. A pair of polepieces 7a, b are arranged adjacent to the upper end of the spring and the pole faces are shaped to an arc of a circle over region 8 and to a tangent to the circle over region 9. The lower end of the spring also rests against a further non-magnetic member 3b which is shaped to an arc of a circle over region 10, and has a transverse groove 12 to receive dust. The polepieces 7a, b are linked by a yoke (7, Fig. 2) and a plurality of such structures are mounted side by side and their yokes threaded by a common holding coil (16). The holding coil retains the spring against the shaped faces of the pole pieces which are provided with windings 15a, b which when energized release the spring, the end 4 of which is formed as a print hammer head. The member 3a to which the spring is secured may be moved relative to member 3b to adjust the flight time of the hammer. The magnetic circuit may be modified so that each device is provided with its own holding winding, and the shaped portion of the upper non-magnetic base member (3b) may be provided with transverse grooves to receive dust and to reduce the air suction effect, Fig. 3 (not shown).
Patent GB-706110-A (GB)
Title: Improvements in or relating to tubulous fluid heating units fired by pulverised fuel
Inventor: SILK PHILIP BAXTER
IPC: F23J1/00
Filed: 1951-02-27
Abstract: 706,110. Pulverulent-fuel furnaces. BABCOCK & WILCOX, Ltd. Feb. 26, 1952 [Feb. 27, 1951], No. 4746/51. Class 51 (1) In a pulverulent fuel fired steam generator having a water tube lined combustion chamber formed with a hopper-like bottom provided with an outlet leading to an ash collecting chamber, the ash collecting chamber 6 is divided into two compartments by a sieve-like structure comprising spaced water tubes 12 forming a continuation of alternate tubes cooling the wall 8, said tubes being formed with diametrically opposed rows of radially extending studs. Clinker collecting in the upper compartment 14 is discharged through the hydraulically operated door 16 into a conventional sluiceway 30 covered by a grid 31, the door and the adjacent part of the sluiceway being covered by a casing 32. Fine ash collecting in the lower compartment 15 is discharged through the hydraulically operated door 20 into a casing 25 from which it is removed by suction through a pipe 24 at the bottom of a shoot 23. The front wall tubes 7 are extended downwardly to a header 38 fed by a downcomer 39, and said tubes from a projecting roof 36 tending to shield the clinker compartment from radiation originating in the combustion chamber. Alternate back wall tubes 8 extend downwardly to join the header 38 forming with refractory material 40 and 42 respectively the back wall 41 and the bottom 43 of the ash collecting chamber. In a modification Fig. 2 (not shown), the lower part of the ash collecting chamber is extended forwardly to increase its capacity and a further modification, Fig. 3 (not shown) has the tubes 12 and the back wall tubes extending between separate headers from those to which the other wall tubes are connected. Further embodiments, Figs. 4 and 5 (not shown) discharge the clinker directly into a trolley instead of the sluiceway 30, the first discharging by gravity and the second, which has an horizontal extension of the clinker collecting compartment, discharging by a hand rake. In the sieve-like structure dividing the ash collecting chamber, the tube studs may be replaced by support bars 110, Fig. 8, of tapering section running between and parallel to the tubes 12 and strung on rods 119 extending through metal clips 119 clamped to said tubes. The relative spacing between the bars 110 and tubes 12 is preserved by tubular spacers 121 on the rods 119 and that between the individual bars by rivets 123 and spacers 124 in the lower parts thereof and by tubular spacers 127 on transverse rods 126 in the upper parts thereof.
Patent GB-391938-A (GB)
Title: Improvements in or relating to thermionic valves or electron discharge tubes
IPC: H01J1/22
Filed: 1932-02-17
Abstract: 391,938. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Feb. 17, 1932, No. 4749. Convention date, March 24, 1931. [Class 39 (i).] The indirectly heated cathode of a thermionic valve or electron discharge tube is provided with two or more heaters having current supply connections such that each heater may be operated independently. One heater is intended for use at high temperature to remove occluded gases or during the subsequent stages of manufacture of the tube, while the other is intended for use at a lower temperature during normal operation. Alternatively, both heaters may be used during normal operation. The cathode, in the form of a nickel tube 7 supported by a member 17 from a glass rod 16 supported from the anode 3, encloses heater wires 8, 9 which may be of the same general shape and arranged either one within the other as shown in Fig. 1 or side by side as shown in Fig. 3. The wires are connected together and to a lead 15 at one end. while their other ends are connected to separate leads 13, 14. The grid 4 is wound on supporting rods 6 fused into the rod 16. The invention claimed in Specification 367,825 is disclaimed.
Patent GB-986283-A (GB)
Title: Improvements relating to bearings
Inventor: COOPER ERIC
IPC: F16C29/04
Filed: 1962-02-08
Abstract: 986,283. Bearings. MAGNAVOX ELECTRONICS CO. Ltd. Jan. 25, 1963 [Feb. 8, 1962], No. 4891/62. Heading F2A. [Also in Division G5. The capstan of a tape recorder (see Division G5) rotated by an electric motor is formed upon a shaft 14 supported in a lower bearing (not shown) and an upper, bearing 16. Bearing 16 includes a bush 19, within which the shaft 14 rotates and is axially displaceable, having partspherical shoulders and which is resiliently retained against the conical surfaces 31 and 32 of a housing composed of similar parts 22, 23 held together against a base-plate 1 by three uniformly circumferentially spaced compression springs 28a adjustably retained upon bolts 27. The arrangement permits sideways bodily movement of bush 19, when the surfaces 31, 32 are resiliently forced apart and also enables the bush 19 to rock in any direction about an axis at right angles to the vertical axis of shaft 14. Specifications 958,845, 958,846 and 986,282 are referred to.
Patent GB-525198-A (GB)
Title: Improvements in or relating to the preparation of di-olefines
IPC: C07C1/24
Filed: 1939-02-15
Abstract: 525,198. Diolefines. USINES DE MELLE. Feb. 15, 1939, No. 4971. Convention date, March 21, 1938. [Class 2 (iii)] Diolefines are made by heat-treatment of glycols or of olefine alcohols in the presence of volatile phosphorus compounds in the vapour phase. Suitable phosphorus compounds are the oxychloride, trichloride and pentachloride and phosphoric acid esters. They may be added to the alcohol or may be injected separately into the reaction space. In examples (1) butylene glycol at 300-350‹C. is sent into a vertical quartz or non-corrosive steel furnace containing at its upper part porcelain pellets to act as a vaporizer, and triethyl phosphate vapour is injected into the furnace ; (2) in a similar process phosphorus oxychloride is employed, and the furnace is filled with inert matter such as pumice or wood charcoal. A small proportion of unsaturated alcohols are produced as a bye-product and are returned to the process to be converted into diolefine. In a third example crotonyl alcohol to which phosphorus oxychloride has been added is employed. The product of these examples is butadiene but from higher glycols and olefine alcohols higher diolefines such as isoprene are obtained. Specification 511,534 is referred to. The Specification as open to inspection under Sect. 91, includes the use of any volatile catalyst. This subject-matter does not appear in the Specification as accepted.
Patent GB-882170-A (GB)
Title: Improvements in or relating to electric cable joints or terminations
Inventor: ROSEN ABEL
IPC: H02G15/04
Filed: 1957-02-13
Abstract: 882,170. Moulding cable terminations. BRITISH INSULATED CALLENDER'S CABLES Ltd. Feb. 12, 1958 [Feb. 13, 1957], No. 4997/57. Class 87(2). [Also in Group XXXVI] The exposed ends of insulated conductors 2 of a plastics sheathed cable 3 are embedded in a cast body of insulating material by partially baring the ends at 4, threading them through a multi-apertured disc of polyethylene 5, pushing a short tube 6 of polyethylene or rubber over the disc to form a cylindrical mould in which the locally bared conductors are disposed, and filling the mould with a casting resin which may be an epoxy resin with a polysulphide liquid polymer and a curing agent. The tube is removed after the casting has set but the disc is left in place. Specifications 840,744 and 875,919 are referred to.
Patent GB-850079-A (GB)
Title: Improvements in or relating to the production of stretch yarns
Inventor: ARTHUR DAVID FOXALL
IPC: D02G1/02
Filed: 1957-02-14
Abstract: 850,079. Spinning and crimping yarns; twist tubes. BRITISH NYLON SPINNERS Ltd. Feb. 6, 1958 [Feb. 14, 1957], No. 5034/57. Addition to 797,051 Classes 120(2) and 120(3). In a process for crimping and doubling yarn, two thermoplastic e.g. nylon yarns are drawn through heating means and through one each of two twist tubes of the kind described in the parent Specification so that the yarns are given opposite twists, and doubling the crimped yarns. The yarns 5, 7 are drawn from packages 1, 3 over magnetic hysteresis tensioning devices 9, 11 to a heater 17, which may be a multizone radiation heater as described in Specification 850,080. An elliptical infra-red heater as described in the parent Specification or a pressure steam heater. A vertical arm 19 with thread guides at either end moves laterally to insert the yarn through a threading slot which extends the length of the heater and acts as an insulating closure for the slot. The yarns then pass through rubber lived twist tubes 13, 15 rotated in opposite senses by an endless band 43 which is tensioned by a spring loaded pulley and driven by a roll 45 mounted coaxially with a draw roll 39. The yarns are wrapped twice round the roll 39 and its separator roll 51, pass over an oil roll 53, are twisted by ring and traveller means and wound on a cone-shaped bobbin 41. Drive may be transmitted between the draw roll and twist tubes by gearing, or by two endless bands, or the tubes may comprise the roter and stator of an electric motor or fluid-driven turbines. The bushes or lips of the twist tubes may be natural, polyester or polyurethene rubber. Specification 801,335 also is referred to.
Patent GB-287923-A (GB)
Title: A machine for dressing textile threads with wax and liquid alternatively
IPC: B65H71/00
Filed: 1928-02-17
Abstract: 287,923. Maschinenfabrik Schweiter Akt.-Ges. March 30, 1927, [Convention date]. Coating threads.-An apparatus in which textile thread may be alternatively dressed with wax or liquid such as oil comprises a tank 5 containing the oil and carried by a pivoted arm 7. A wick 6 feeds the oil to a roller 4, over which the thread passes. The tank may be tilted to the position shown in Fig. 4, the roller 4 removed and two paraffin discs 10 substituted therefor, the thread then passing between the discs.
Patent GB-112870-A (GB)
Title: Improvements in and relating to Wheel Barrows.
Inventor: HOE PETER DICK
IPC: B62B1/24
Filed: 1917-04-10
Abstract: 112,870. Hoe, P. D. April 10, 1917. Tipping-carts.-The body 5 of a wheelbarrow is hinged at 6 to the side bars 1 for tipping and is adapted to be returned to the normal position bv cables 16 which wind upon spring-actuated drums disposed in casings 21 secured to the sidebars. Shock is absorbed by plungers 23 which enter sockets 22 in the side bars so as to form air cushions. Jointed bars 9, 14 limit the tipping movement of the body.
Patent GB-1081241-A (GB)
Title: Wide-band radio direction-finders
IPC: G01S13/44
Filed: 1966-02-04
Abstract: 1,081,241. Radio direction-finders; aerials. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 4, 1966 [Feb. 11, 1965], No.5117/66. Headings H4A and H4D. [Also in Division H1] A wide-band direction-finder comprises an aerial consisting of a plurality of equi-angular spirals bounding a volume of revolution, the aerial and associated summation means producing two voltages the phase-shift between which is measured. The aerial may be selfsupporting or supported on an insulator. In the embodiment the volume of revolution is a cone, and the spirals feed into a hybrid junction consisting of a symmetrical-T and a balun (see Division H1). The spirals may be the inners and outers of coaxial cables.
Patent GB-975567-A (GB)
Title: Improvements in or relating to amplitude modulators
Inventor: BARRET JEAN-PIERRE
IPC: H03C1/58
Filed: 1961-02-10
Abstract: 975,567. Amplitude modulators. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. Feb. 10, 1961 [Feb. 11, 1960], No. 5149/61. Heading H3R. An amplitude modulator with a carrier suppressed output comprises a diode bridge D 1  . . . D 4  poled such that branches D 1 , D 2 ; D 3 , D 4  conduct, respectively, during opposite alternations of the carrier fed from a source HF through R, C couplings R 1 , C 1 ; R 2 , C 2 . The modulation is fed through a transformer T 0  in anti-phase to the junctions of the diodes in each branch. A centre-tap in the secondary winding of transformer T 0  is at earth potential and points A, D of the diode bridge high-frequency excitation circuit are adjustable relative to earth by R, C couplings R 3 , C 3 ; R 4 , C 4 , and a potentiometer P 1 . The modulated signal appears between F and B, C of the bridge, these two signals being connected in push-pull through high-frequency transformers T 1 , T 2  to the output terminals S 1 , S 2  to suppress the carrier voltage. The potentiometers P 1 , P 2  are adjusted to balance the system to eliminate the carrier and distortion caused by temperature variations and " noise " due to the diodes. One of the arms of the diode bridge may be dispensed with, in which case the modulating voltage is applied directly between earth and the junction of the diodes in the operative arm. In Fig. 2, the modulated signals appearing across points BF, CF are combined in a resistor network R 6 , R 7 , P 3  and appear across a circuit G tuned to the carrier frequency and transformer coupled to the output terminals S 1 , S 2 . In Fig. 3 (not shown), the tuned circuit G of Fig. 2 is replaced by a resistor connected to the output terminals. The diodes D 1  . . . D 4  may be replaced by non-linear capacitors or non- linear saturable magnetic core inductors.
Patent GB-1381672-A (GB)
Title: Overcoating printed material
IPC: B41M7/00
Filed: 1972-02-04
Abstract: 1381672 Cellulose propionate solutions EASTMAN KODAK CO 4 Feb 1972 [8 Feb 1971 22 Feb 1971] 5239/72 Heading C3F [Also in Division B6] Paper or other material is printed with an oil-base ink, such as one containing linseed oil, and, while the ink is still wet, overcoated with a solution of cellulose propionate with a viscosity of 0À02 to 20 seconds. The cellulose propionate has, by weight, up to 4À5% acetyl, 4À4% to 12% hydroxyl and at least 35% propionyl. The solvent may be an alkanol, such as methanol, or an alkanol-water blend such as ethanol-water. A mixture of isopropyl alcohol and water is preferred. Other solvents which can be used include acetone, methyl ethyl ketone, ethyl acetate and n-propyl acetate.
Patent GB-1060372-A (GB)
Title: Improvements in or relating to reciprocating compressors, pumps, engines and the like
IPC: F01B21/02
Filed: 1964-02-07
Abstract: 1,060,372. Linkwork. C. BANCROFT. Feb. 7, 1964 [Nov. 13, 1963], No. 5317/64. Heading F2K. [Also in Division F1] In a pump, compressor, engine, or the like,  cylinders are mounted on a rotary crank-pin and have linear reciprocating motion on fixed pistons, the crank-shaft being so designed and mounted that the crank-pin while rotating has linear reciprocating motion. As shown in Fig. 1, a pump or compressor comprises a cylinder block comprising cylinders 1a mounted on a crank-pin 2a and reciprocating on fixed pistons 3. The crank-pin 2a has a port 9a communicating with an inlet which port communicates during rotation with inlet ports 10 in the cylinders 1a. Discharge from the cylinders takes place through spring-loaded valves 13 to outlets 12. The crankshaft comprises further crankpins 2b mounted in bearings in slides 4 which are slidable at right angles to the plane shown. Further crank-pins 2c are mounted in bearings in balance weights 5 which are coupled to the drive shafts 6 by couplings 6b, 6c. The embodiment shown in Fig. 2 comprises an I.C. engine; in addition to the cylinders 31 reciprocating on the fixed pistons 23d further pistons 28 are provided on the reciprocating cylinders 31 and these pistons 28 reciprocate in cylinders formed in the fixed pistons 23d. The chamber between the reciprocating cylinder 31 and piston 28 communicates with inlet passages in the crankpin and subsequently with passages in the crank-pin leading to a port which communicates with a passage 61 in the opposite piston 28 from where it flows into the cylinder 23a driving exhaust gases through the port 64. The engine may be arranged for compression or spark ignition. In Fig. 13 (not shown) a further crank-pin is provided on the crank-shaft and is rotatable in a cylinder block arranged to reciprocate at right angles to a first cylinder block. In Fig. 14 (not shown) an I.C. engine of the type shown in Fig. 2 is directly coupled to a two-stage compressor of similar construction.
Patent GB-1509661-A (GB)
Title: Water ring vacuum pumps
IPC: F04C19/00
Filed: 1976-02-11
Abstract: 1509661 Seals P J GRAYDEN PTY Ltd 11 Feb 1976 5382/76 Heading F2B [Also in Division F1] Sealing around the impeller shaft of a waterring vacuum pump is provided by a rubber seal 38 carried by the shaft and contacting a radial surface 40 of a stationary member 39 to prevent water leakage when the pump is not running. When the pump is running, a partial vacuum is set up in a space 21 whereby air flows from atmosphere via a passage 43 and then between the seal 38 and the surface 40 into the space. The air flow deforms the seal 38 slightly outwardly whereby its contact with the surface 40 is reduced or eliminated. This reduces wear on the seal. Any water then leaking past the seal is drained through the passage 43.
Patent GB-1194512-A (GB)
Title: Spring Loaded Table Leaf Support Arm
Inventor: MANGHAM JOHN WILLIAM
IPC: A47B1/04
Filed: 1968-02-02
Abstract: 1,194,512. Stays. W. STEEL & CO. Ltd. 24 Jan., 1969 [2 Feb., 1968], No. 5426/68. Heading E2F. A stay for maintaining in coplanar relation two planar members 1 and 3 hinged together along adjacent edges 4 comprises a support arm 7 pivotally mounted for rotation about a point 6 intermediate its ends in a plane generally parallel to the common plane of the two members between a first position in which the arm extends across the surface of one only of said two members and a second position in which it extends across parts 'of the surfaces .of both members (as shown), spring 'means 12 biasing the arm into said second position and ramp means 11 disposed in the path of movement 'of one end .10 of the arm across the surface of said one member to cause .the opposite end 9 to press against the 'surface of the other member thereby maintaining both members in coplanar relation. In one embodiment, a base plate, outlined at '13, may be provided attached to member 1 this plate is provided with a pivot pin for the 'arm and the ramp is pressed out of the plate. A .retaining washer '8 holds the arm on the 'pin. The 'stay is useful in drop leaf tables and benches.
Patent GB-623655-A (GB)
Title: Improvements in or relating to process of and apparatus for forming cellular glass blocks or slabs
IPC: C03B19/08
Filed: 1947-02-25
Abstract: 623,655. Glass manufacture. PITTSBURGH CORNING CORPORATION. Feb. 25, 1947, No. 5431. Convention date, March 31, 1945. [Class 56] In a process of forming cellular glass slabs in moulds comprising a pair of sections each frusto-pyramidal for easy removal, either one corresponding side of each mould half is only slightly sloped, or a side of each slab is ground to a flat base between removal from the mould and annealing, or both, whereby the slabs may be stood on edge during annealing. The mould sections may be formed of stainless sheet steel and may be of the same or as shown of different depth: one side 18<SP>1</SP> of each section is sloped less than the remainder, and flanges 21<SP>1</SP> with strengthening lips 22<SP>1</SP> are provided; a slurry of clay, bauxite, &c. is applied to the interior before filling with pulverized glass, carbon (e.g., lamp black, 0.5 per cent) and a promoter of cellulation such as antimony trioxide (e.g., 0.3 per cent). After the sintering and bloating treatment, e.g., at 1600‹- 1650‹F. in a roller hearth furnace, the moulds are cooled to 800‹-900<SP>1</SP>F. and subjected to sudden reheating to facilitate removal. The slabs are then ground flat on their slightly bevelled edges by rubbing on a sheet of chain fabric, and are stood on these flat edges on a conveyer for passage through an annealing lehr. Specification 447,805 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use of calcium sulphate to promote cellulation. This subject-matter does not appear in the Specification as accepted.
Patent GB-555954-A (GB)
Title: Improvements in and relating to electric supply systems for loads capable of regenerative operation
IPC: B60L7/12
Filed: 1942-04-23
Abstract: 555,954. Converting. BRITISH THOMSON-HOUSTON CO:, Ltd. April 23, 1942, No. 5448. Convention date, April 25, 1941. [Class 38 (ii)] In a supply system in which a regenerative load 3 is supplied from a rectifier 2 and in which excessive rise in voltage under regenerative conditions is prevented by switching in loading resistances, a predetermined number of resistance elements, e.g. 151, 4, 5, 6 are initially connected in parallel through a bus 14 so that on a rise in voltage causing unlatching of a switch 15 by a voltage relay 21, these elements are immediately connected across the load. If this is insufficient to restore normal voltage, additional resistance elements 7, 8 are successively switched in due to operation of a relay 22 also controlled by the voltage relay 21. When regeneration ceases, re-energization of a relay 28 (previously de-energized by the operation of a current relay 20) causes the resistance elements to be successively disconnected and, on disconnection of resistance 4, causes energization of opening coil 19 of switch 15 through contacts 60 on relay 23 thus disconnecting the remaining resistance element 15<SP>1</SP>. Relays 23, 24, 25 thereupon reoperate to cause re-connection of elements 4, 5 and 6 to the bus 14. Time delays are incorporated in the relays 23 ... 27 to cause the resistance elements to be disconnected at a slower rate than at which they are connected.