baber/WOPTO huggingface dataset:
Patent GB-956325-A (GB)
Title: Improvements in or relating to arrangements for dispensing trays
IPC: G07F11/60
Filed: 1962-04-24
Abstract: 956,325. Serving meals. TELEFONBAU UND NORMALZEIT G.m.b.H. April 24, 1962 [April 29, 1961], No. 15516/62. Heading A4T. A device for dispensing trays, e.g. trays carrying meals, comprises a rack 13 with parallel rails 21 for supporting trays 22 and movable vertically on guide members 20 to allow delivery of each tray through a service opening, and a fixed rack 11 with parallel rails 19 for supporting trays and arranged so that the trays thereon can be transferred simultaneously to the movable rack by operation of a push rod 24 driven by chains 23. The last stage of the transfer of trays is effected by inclined guides 26 which engage an edge of the trays on downward movement of the rack 13 and urge the trays completely into the movable rack. The movable rack is driven by a chain 14 and the chains 14 and 23 are driven by electric motors controlled by limit switches.
Patent GB-748955-A (GB)
Title: Improvements in or relating to independent domestic hot water boilers
Inventor: SMITH REGINALD ROBERT FYFE
IPC: F24H1/20
Filed: 1953-06-05
Abstract: 748,955. Hot-water boilers. SMITH & WELLSTOOD, Ltd. May 24, 1954 [June 5, 1953], No. 15527/53. Class 64(1). In a hot water boiler comprising an upright cylindrical casing 1 mounted at its lower end on a base 2, an annular boiler 7 mounted partly inside and partly projecting through the casing, and a firegrate 3 below the boiler, the casing is surrounded by an outer casing 13 to enclose an air space 14, and registering openings in the casings are normally closed by an ash pit door 15. A member 19 fixed to the inner casing 1 forms a mouthpiece for the ashpit. An annular firebrick assembly 5 around the fire-chamber 6 is interposed between the grate and boiler, which are both mounted on a support 4 upstanding from the base. The casing 1 is lagged. A thermostatic element 16 in the air space 14 controls the flow of air through an aperture 18 leading to the ashpit. The base 2 is a plate with a central upwardly dished part 20 and an upstanding rim 21. In a modification, the base plate is the top of the ashpit and carries the grate.
Patent GB-1123832-A (GB)
Title: Improvements in anchors
Inventor: STOKES EDWARD HENRY GRAHAM
IPC: B63B21/44
Filed: 1965-04-13
Abstract: 1,123,832. Anchors. ARMSTRONG WHITWORTH (MARINE) Ltd. 7 April, 1966 [13 April, 1965], No. 15670/65. Heading B7S. A stockless marine anchor comprises a crown 21, two flukes 20 made integrally with the crown, the crown being of hollow domed form open at its rear end and the flukes projecting forwardly from the crown and being in the form of substantially flat co-planar blades which are pointed at their front ends 26 and widen out towards the crown, the adjacent edges of the flukes being formed with ribs 25 set at right angles to the flukes to provide strength, an opening 41 in the centre of the crown between the flukes, a shank 23 formed at its inner end with an eye 42, said end passing through the opening, and pivot pin 22 located within the hollow of the crown passing through the eye to permit the shank to pivot with respect to the flukes.
Patent GB-529329-A (GB)
Title: Improvements in or relating to head lamps for vehicles and other lamps
IPC: F21V17/00
Filed: 1939-05-30
Abstract: 529,329. Headlamps. BOSCH GES., R. May 30, 1939, No. 15822. Convention date, May 30, 1938. [Classes 75 (ii) and 75 (iv)] The reflector 5 of a headlamp or like is made capable of universal adjustment by means of two adjusting screws 13, 16 side by side; one, 13, acting on a lever 9 curved to follow the cover plate 4 and pivoted at 10 to move the pin 7 through the slot 8 so that the reflector turns about 6, while adjustment of 16 turns the reflector about the' axis 6, 7. Specification 497,377 is referred to.
Patent GB-860136-A (GB)
Title: Continuous mixing apparatus for use in making polyurethane and polyvinyl formal foams
IPC: B29B7/44
Filed: 1957-05-16
Abstract: 860,136. Continuous mixing appliances. HUDSONFOAM PLASTICS-CORPORATION. May 16, 1957 [May 16, 1956], No. 15924/60. Divided out of 860,135. Class 86 An apparatus for mixing reactants under pressure in the production of polymethane and polyvinyl formed foams by the method of Specification 860,135 (see Groups IV(a), V) comprises a mixing chamber 10 having rotating paddles 33 carried on a shaft 28 and interacting with longitudinal baffles 38 so that a shearing action is exerted on the materials being mixed. The baffles 38 are spaced from the wall of the mixing chamber and are carried on rings 37, 36 supported by a shoulder 39 so that they may be withdrawn as an assembly for cleaning. The reactants are supplied continuously -under pressure in stoichiometric proportions by metering pumps 17, 18, 19, Fig. 1 (not shown) to the inlets 11, 12, 13. The reaction product is withdrawn continuously through the valved outlet 21 to moulds where foaming and gelling take place.
Patent GB-1377875-A (GB)
Title: Method of preventing smouldering decomposition of multinutrient  fertilizers containing ammonium nitrate and chlorides
IPC: C05B7/00
Filed: 1972-04-06
Abstract: 1377875 Stabilizing multinutrient fertilizers VEBA-CHEMIE AG 6 April 1972 [8 April 1971] 15977/72 Heading C1B A method of treating a multi-nutrient fertilizer, liable to exothermic decomposition and comprising ammonium nitrate, dicalcium-phosphate and a chloride (e.g. KCI), comprises (a) adding to the fertilizer ammonium sulphate in amounts of from 3 to 25% by weight, and (b) adding mono- or di-ammonium phosphate to the fertilizer to provide a proportion of watersoluble phosphate in relation to the total phosphate content of from 30 to 70% by weight. The multi-nutrient fertilizer may be of the types 13/13/21 and 15/15/15.
Patent GB-261303-A (GB)
Title: Improvements in or relating to table and like lamps
IPC: F21S6/00
Filed: 1926-06-26
Abstract: 261,303. Ramsay, A. June 26, 1926. Burners, mounting.-The holder 4 of a burner is supported by means of an adjustable inverted cup 3 adapted to compress and expand a rubber or like resilient ring 12 so as to frictionally engage the hollow cylindrical neck 2 of a globe, shade or reflector. The ring 12 may be mounted between a fixed collar 11 and a coned ring or sleeve or a distance sleeve 13.
Patent GB-212178-A (GB)
Title: Improvements relating to extra air valves for internal combustion engines
IPC: F02D9/00
Filed: 1923-08-27
Abstract: 212,178. Burch, R. E. Aug. 27, 1923. Induction pipes; fittings for.-A valve a for admitting extra air to the induction pipe is provided with a lever c adapted to be moved to open position by a spring d, the lever c projecting into the path of, and being controlled by an arm h on the ignition control rod g in such a manner that, as the arm h is moved from the position x to the position z to advance the spark, the air valve (1) remains closed until the position y is reached, (2) gradually opens until the position shown in full lines is reached, (3) remains fully open when the arm h is moved to the position z.
Patent GB-739890-A (GB)
Title: Improvements relating to starting control devices for electric motors
IPC: H01H50/68
Filed: 1954-06-01
Abstract: 739,890. Control of A.C. motors; electromagnetic relays. GENERAL MOTORS CORPORATION. June 1, 1954 [June 12, 1953; March 10, 1954], No. 16162/54. Classes 38 (3) and 38 (5). A starting control device for a split phase motor having main and phase windings 86, 92, includes a spring 52 carrying a contact 153 and biased to close contacts 56, 153, the contact 56 being connected in series with the phase winding of the motor. An armature 38 has a released position in which it engages and opens the contact means, an electromagnetic coil 30 being connected in series with the main motor winding and being adapted to pull the armature away from the contacts 56, 153. An auxiliary spring arm 154 has a light inherent spring bias in the direction of the armature and is adapted to assist the movement of the armature away from the contacts after the contacts have been closed. When the motor is connected to a supply of comparativelylow voltage, a weak current in the coil 30 is sufficient to pull the armature in so far as it has the assistance of the member 52, so closing the phase winding circuit. When the main winding current falls slightly, the armature 38 is released to open the contacts 56, 153. When the supply voltage is at higher values, the armature 38 is pulled in until a felt stop 44 on the face of a lead weight 40 engages the coil 30, the movement being assisted by the spring arm 154. The armature is released from this position at a comparatively high value of main winding current, the electromagnet and armature having a relatively wide air gap so that the forces upon the armature may have suitable values at different values of the supply voltage. To reduce the difference between the pick-up and drop-out currents for the armature 38, the electromagnet coil 30 may be provided with a short-circuited winding in transformer relation with the main relay winding. This additional winding, which opposes the main winding, may also be connected in series with the motor phase winding or the supply line. The relay may be adapted to motors of different horse-powers by changing the main winding, bending extension 34 or changing spring 36, as well as changing the spring force of the member 52. The air gap may be altered by bending portion 42, and the shape of the arm 154 may be varied in order to enlarge the range of usefulness without substantially effecting the manufacture of the relay. In a modification, the armature carries a shortcircuited copper ring which is used to fasten a contact arm to the armature. The movable contact engages a fixed contact when the armature is attracted by the electromagnetic coil, Fig. 5 (not shown). An overload bimetallic element 60 co-operates with a compensating bimetallic element 66 by means of a toggle spring 68. The element 60 carries the motor current and controls overload contacts 62, 64.
Patent GB-1109161-A (GB)
Title: Improvements in or relating to knitting machines
Inventor: BENTLEY WILLIAM
IPC: D04B15/78
Filed: 1964-04-18
Abstract: 1,109,161. Knitting-machines. WILLIAM COTTON Ltd. 14 April, 1965 [18 April, 1964], No. 16162/64. Heading D1C. A needle selecting mechanism for a straight bar machine having needles frictionally mounted in the bar, or a flat-bed machine comprises a series of sliders, controlled electro mechanically, which engage the needle butts and prevent the needles rising to the full height. In one embodiment selected sliders 19 are projected by rows 29a of solenoids 29 into the path of butts 12a so that when the bar is raised the needles rise to tuck height only. Similar controls 20, 30, 30a retain the needles at an inoperative height when the bar is raised. The sliders are returned to a selecting position by bar 28 A single row of sliders may be mounted in a bracket movable to either of two levels. In a modification Fig. 3 (not shown) sliders 19, 20 are moved by the solenoids via intermediate sliders. In an alternative embodiment Fig. 5 (not shown) selected needles are retained at either or both said levels by sliders, alternate ones of which are attracted by electromagnets of two groups (55, 56).
Patent GB-459235-A (GB)
IPC: H04W84/02
Filed: 1935-06-04
Abstract: 459,235. Electromagnetic interrupters. WALLACE & TIERNAN PRODUCTS, Inc., 11, Mill Street, Belleville, New Jersey, U.S.A.- (Assignees of MacKay, J. R.) June 4, 1935, No. 16197. Convention date, June 11, 1934. [Class 38 (v)] [See also Groups XL and XXXVIII] A mechanically tuned relay used in a radio telephone system comprises coils 2006, 2007 within which rotates an armature 2013 mounted on shaft surrounded by torsion springs 2014, 2015 secured to adjustable nuts 2040. An arm 2020, having adjustable weights, engages a cam segment 2025 pivoted on the contact spring 2022, the arrangement being such that the segment is effectively moved to close contacts 2022, 2021 when the weighted arm moves in one direction but not in the other.
Patent GB-834837-A (GB)
Title: Improvements in and relating to electromagnetic flame failure gas valves
Inventor: OLIVER FREDERICK DERRICK
IPC: F23N5/10
Filed: 1957-05-22
Abstract: 834,837. Valves. CALOR GAS (DISTRIBUTING) CO. Ltd. Feb. 26, 1958 [May 22, 1957], No. 16251/57. Class 135. In an electro-magnetic safety cut-off valve for gas consuming appliances, upward movement of a manual plunger 5 having a main gas passage 5a and port 6, closes the end of the passage on a valve 13 and lifts the valve away from its seat 14 against the spring 15 whereby gas passes from the inlet 2 to a pilot burner outlet 28, and further lifts an armature 20 into contact with an electromagnet 21, which when energized by a pilot burner thermo-couple holds the armature and valve 13 in its open position so that release of the plunger 5 also allows inlet gas to pass along passage 5a to the main burner outlet 3. De-energization of the electro-magnet allows valve 13 to close both outlets from the inlet.
Patent GB-542298-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M4/76
Filed: 1940-11-08
Abstract: 542,298. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. (Galloway, C. D.). Nov. 8, 1940, No. 16273. [Class 53] In an accumulator electrode having a row of pencils 1 of active material mounted on spines 2 secured to a bar 3, the retaining fabric consists of a band or hoop 4 surrounding all the pencils and secured as at 5 between the individual pencils so as to form connected sheaths each of which encloses an individual pencil. The bar 3 and spines 2 may be made in one piece and a group of pencils moulded or pasted on the spines at one operation.
Patent GB-1380266-A (GB)
Title: Process for the semi-continuous preparation of high-molecular weight linear polyesters
IPC: C08G63/78
Filed: 1971-05-21
Abstract: 1380266 Preparing polyethylene terephthalate AGFA-GEVAERT 8 May 1972 [21 May 1971] 16347/71 Heading C3R A process for producing high molecular weight polyethylene terephthalate comprises adding in a first reaction step terephthalic acid and ethylene glycol to bis-(2-hydroxyethyl) terephthalate in a ratio of up to 1À1 mole of terephthalic acid per mole of bis-(2-hydroxyethyl) terephthalate present and 0À3 to 0À9 mole of ethylene glycol per mole of free terephthalic that is being added, and heating to between 240‹ and 310‹ C. in an inert atmosphere and at atmospheric pressure until a precondensate consisting of low molecular weight esterification product is formed; polycondensing in a second reaction step half the amount of the precondensate at above 200‹ C. and at sub-atmospheric pressure until a high molecular weight linear polyester is obtained; reacting the other half of the precondensate in a third reaction step at above 200‹ C. with ethylene glycol, the molar amounts of ethylene glycol added in this step being such that it equals the molar amount of free terephthalic acid used in the first reaction step minus half the molar amount of ethylene glycol used in the first reaction step, thereby glycolizing the precondensate to bis-(2-hydroxyethyl)terephthalate, which is recycled to the first reaction step.
Patent GB-214129-A (GB)
Title: Improvements in detectors for wireless receiving apparatus
IPC: H01L21/00
Filed: 1923-06-25
Abstract: 214,129. Benson, L. June 25, 1923. Crystal detectors are provided with a number of cat-whiskers, preferably of different metals or designs, on a single arm. As shown, six whiskers w are provided at the corners of an hexagonal member d on the arm r. The selected whisker co-operates with one of three crystals in cups b. The turret t carrying the link f is revoluble.
Patent GB-1457579-A (GB)
Title: Pyrolytic self-cleaning cooker ovens
IPC: F24C/
Filed: 1974-04-16
Abstract: 1457579 Locks ETABS EUGENE SCHOLTES 16 April 1974 [17 April 1973] 16436/74 Heading E2A [Also in Divisions F3 F4 and H2] An electric cooker oven of the kind which is cleaned by burning off the deposits adhering to the inner walls comprises an electromagnetically operated lock bolt 34 Fig. 1 to lock the door during the cleaning operation, a safety switch 13 in the circuit of the heating resistances being operated by the lock bolt, the lock bolt being controlled inturn by a pair of windings having opposite actions, which are connected via a two-way switch 11, operated by a thermostat preset to the oven-cleaning temperature. The safety switch 13 consists of a two-way switch, the movable contact 37 of which must necessarily change to the other contact to maintain the energisation of the heating resistances of the oven after the switch 11 of the thermostat has changed over. The door latch consists of a hook member 20, Fig. 3 on the door and a spring-loaded pivoted retaining member 19 on the oven housing which moves over-centre as the door opens and closes. As it does so a rod 23 moves down and up again. The bolt 30 in the projected position prevents this movement and thereby prevents the door being opened. For cleaning the oven, (Fig. 2, not shown) the control switch 1, Fig. 1 is turned to connect contacts e-m, which energise the extra heating resistance 5, and contacts d-k, which complete a circuit from lock winding 33 so that when thermostat switch 11 transfers to contact t the winding 33 is energised to shoot the bolt 30. The end of the bolt displaces the control lever 36 of switch 13 which transfers to contact r, by-passing switch 11 and maintaining the energisation of heating resistors 2 and 3. Unless the bolt 30 is properly shot, therefore the heaters 2 and 3 are deenergised and the oven does not reach a high temperature. The cleaning operation is normally brought to an end by a programme motor 17 which opens contacts 9 and 18 after a set time. As the oven cools down the switch 11 reverts to contact r, re-energising winding 32 to withdraw the bolt. The temperature during the cleaning operation is limited to say 500‹C by thermostat switch 10. A safety thermostat 40a opens switch 40 if the outside of the oven gets too hot during the cleaning operation. In another form (Figs. 4, 5 not shown) the door is hinged about its lower edge and has a retaining hook on its upper edge. The locking bolt comprises a vertical plate with an opening to receive the hook are connected by control rods to a winding, one at each end of the oven casing.
Patent GB-476263-A (GB)
Title: Process of producing hydrogen peroxide
IPC: C01B15/03
Filed: 1936-06-12
Abstract: In obtaining hydrogen peroxide in a continuous or closed cycle method by the distillation of electrolytically obtained solutions capable of splitting off active oxygen with the formation of hydrogen peroxide, the solutions are purified by crystallization prior to the distillation step.  The crystallization may be effected by super-saturating the solution with the dissolved compounds or like salts, or inactive salts, or by supercooling. Alternatively, salts which form per-compounds with active oxygen may be added to the solutions.  The crystallization may take place in the electrolytic cell.  According to an example, an electrolytically produced solution containing ammonium persulphate, ammonium sulphate and sulphuric acid is treated with ammonia and sulphuric acid while maintaining the temperature below 35 DEG  C., and is cooled to 8--10 DEG  C. with the separation of a portion of the ammonium persulphate in the crystalline form, the residual solution being distilled to produce hydrogen peroxide.  The Specification as open to inspection under Sect. 91 comprises also effecting a crystallization in a portion only of the electrolytically produced solution, the mother liquors being united with the distillation residues remaining after distilling the other portion.  This subject-matter does not appear in the Specification as accepted.
Patent GB-466379-A (GB)
Title: Improvements in smoke deflectors for steam locomotives
IPC: B61C17/04
Filed: 1936-06-12
Abstract: 466,379. Locomotives. KUKUK, W. June 12, 1936, No. 16446. Convention date, June 25, 1935. [Class 79 (i)] A smoke deflector for locomotives comprises a rearwardly-inclined screen or plate b arranged in front of the smoke-box a within a frame having forwardly-projecting walls c, d forming at the top a throat f through which a current of air is projected upwardly in front of the chimney e. A dead space k is thus formed in front of the chimney and the smoke can rise undisturbed from the chimney until it mingles with the current of air above the driver's line of sight. A baffle may be provided to direct some of the air passing f into the space k to obviate any smoke being drawn into this space. The inclined plate b may be constituted by the front end of the smoke-box.
Patent GB-714696-A (GB)
Title: Improvements in devices for heating and heat regenerating for coke ovens and carbonising chamber ovens
IPC: C10B5/12
Filed: 1951-07-11
Abstract: 714,696. Coke ovens. COMPAGNIE GENERALE DE CONSTRUCTION DE FOURS and DELARUE, R. July 11, 1951 [July 12, 1950], No. 16449/51. Class 51 (2). [Also in Group XIII] In a regeneratively heated coke oven of the compound type having " hairpin" heating flues and a regenerator chamber disposed below and parallel to each oven, each regenerator chamber serves only for heating air or only for heating gas, the walls separating the descending compartments from the ascending compartments in the regenerator chamber being perpendicular to the plane of the heating walls, and each burner is connected to the nearest compartment by an individual duct. Each regenerator chamber is divided into compartments, serving four burners by dividing walls comprising double concave assemblies of brickwork 13 each having a rear casing 14 defining a space 15 which is filled with pulverulent material, a cavity 19 being provided in the masonry 24 between the ovens and the regenerators feeding a reserve of the pulverulent material into each space 15. Each cavity 19 communicates with a flue 20 connected by an external, unlagged or cooled pipe 27 and a duct 26 to the front heating flue, whereby a supply of cooled waste gases at a pressure slightly above that of the air or gas passing through the adjacent regenerator compartments, seeps through the pulverulent material in each of the wall spaces 15. The sole flues 29, Fig. 8, are divided by horizontal partitions having openings 33 into superposed flues the upper section exhausting waste gases into a mains flue F in one direction of flow and the lower section supplying either lean gas or air respectively through valves 31 and openings 33 after reversal of flow.
Patent GB-691380-A (GB)
Title: Improvements relating to bladed rotors for compressors, turbines or like apparatus
Inventor: ALLERTON SIDNEY GEORGE
IPC: F01D5/30
Filed: 1950-07-01
Abstract: 691,380. Cotters. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 25, 1951 [July 1, 1950], No. 16487/50. Class 89 (ii) [Also in Group XXVI] A locking device for preventing axial movement of a blade mounted in an axial slot in the periphery of a turbine or compressor rotor comprises a central portion 5 which is accommodated at the bottom of the blade slot 4, and end extensions 6, 7 of width not greater than the circumferential width of the bottom of the blade slot. The end extensions are bent so as to bear at each end against the blade root and rotor. The locking device may comprise a rectangular strip of sheet metal or two such strips arranged side by side at the bottom of the blade slot. The strip may be longitudinally slotted at the ends to provide three tabs 8-13 as in Figs. 1 and 2 or two tabs at each end which are bent in opposite directions. The device may be formed by pressing or stamping and the extension or tab at one end may be bent before insertion. Specification 672,401 is referred to.