baber/WOPTO huggingface dataset:
Patent GB-1209229-A (GB)
Title: Improvements in or relating to a method of electroslag remelting of metals
Inventor: MEDOVAR BORIS IZRAILEVICH
IPC: C22B9/18
Filed: 1968-06-11
Abstract: 1,209,229. Casting processes. INSTITUT ELEKTROSVARKI IMENI E.O. PATONA. 11 June, 1968, No. 27751/68. Heading B3F. [Also in Division C7] Electroslag casting of an alloy, e.g. steel, is carried out in an atmosphere of nitrogen or a mixture of nitrogen and inert gas at a pressure greater than atmospheric in order to retain or obtain a nitrogen content in the alloy. The mould may have a sealing cap under which nitrogen is fed. To give a nitrogen content to the alloy, the melting and casting process is performed in a sealed chamber with a nitrogen atmosphere of 1À5-1À7 atmospheres. If the alloy already contains nitrogen the process may be performed in such a chamber with an atmosphere of nitrogen with one or more inert gases at 1À2-1À5 atmospheres pressure.
Patent GB-827424-A (GB)
Title: Improvements in or relating to the preparation of filamentary materials
IPC: B29C48/05
Filed: 1957-09-03
Abstract: An exclusively or predominantly isotactic molten polymer of an alpha-olefine having an intrinsic viscosity of 0.3-2.0 is homogenized for 1-5 minutes, filtered at 20-150 DEG  C. above its melting point, subsequently further filtered at a temperature not more than 60 DEG C. above its melting point and finally extruded into filaments.  A polymer having the specified intrinsic viscosity may be prepared conventionally or by thermal degradation of one which has an intrinsic viscosity greater than 2.  The homogenizing step may be effected partly by mechanical means. The alpha-olefine may be propylene.  To prevent undesired thermal degradation of the polymer, stabilizers, e.g. dibutyl tin dibutyl mercaptide or triphenyl phosphite, may be added.  Examples are given.
Patent GB-228610-A (GB)
Title: Improvements in or relating to telegraphic transmitting apparatus
IPC: H04L17/06
Filed: 1923-11-05
Abstract: 228,610. Creed & Co., Ltd., and Creed, F. G. Nov. 5, 1923. Type - printing tele. graphs.-Relates to startstop keyboard transmitters in which the operation of a key corresponding to a letter or space effects the setting of a series of longitudinally - movable combination bars in such relative positions as to enable the transmission to line of sequences of impulses corresponding to the letter &c. according to a five or other multiple-unit code. The bars are normally held by a stop against movement by springs, and the Operation of a key locks one or more of the bars, whereupon a motor removes the stop to allow the unlocked bars to move and, after the transmission of the impulses, returns the stop and the bars to normal position. Selection of current sequences. Each letter key n or space key n<1>, n<2> is carried by a horizontal bar m mounted in guides t, t<1> and fixed to a vertical rod o mounted in a guide t<2>, and each rod o is pivoted to a lever r controlled by a spring s to hold the key normally raised. Depression of a key lowers its bar m on to the combination bars a to lock one or more of these against movement by its spring c upon the subsequent removal of a stop lever d. The movement of the bars operates corresponding contact levers e<1> - - e<5> to move their contacts from a fixed contact g, connected to negative battery, to a fixed contact h, connected to positive battery. Start-stop device. A sleeve x loosely mounted on a motor-driven spindle v carries a spring- actuated pawl 6 normally held out of engagement with a ratchet w on the spindle by an arm 7 of a spring-controlled bell-crank A. Upon depression of a key the corresponding rod o operates through a bell-crank B, a link 12, and a bell-crank C to lift a bar 8 provided with a shoulder 8<a> engaging beneath the arm 7<a> of the bell-crank A which is thus operated to release the pawl 6. This pawl thereupon engages the ratchet w and the sleeve x is rotated. During such rotation an eccentric portion of the sleeve x engages the bar 8 and the bell-crank A is released in readiness to re-engage the pawl 6 to stop the rotation upon completion of one revolution. Transmission to line. The contacts on the levers el - - e<5> and the contacts h, g are connected as shown in Fig. 12 to contacts 1 - - 5, P, and N respectively arranged as shown in Fig. 9 around a contact y<2> on a stationary plate @, and this contact y<2> is connected to line. The sleeve x is provided with a spindle extension x<1> carrying a central contact y<1> bearing against the contact y<2> and a brush contact y adapted to sweep over the contacts P, 1 - - 5, and N, thus sending to line a + starting impulse, a sequence of five signal impulses, and a - stopping impulse. The stop lever d for releasing and returning the bars a is operated by engagement of a roller on its arm d<1> with a cam groove 14 on the sleeve x.
Patent GB-706873-A (GB)
Title: Cyclopentano phenanthrene compounds
Inventor: KAISER EMIL
IPC: C07J75/00
Filed: 1951-11-27
Abstract: The invention comprises a cyclopentanoperhydrophenanthrene compound having attached at its 3 position a group of the structure <FORM:0706873/IV (b)/1> p  wherein R is a hydrogen atom or alkyl radical having from one to six carbon atoms and Y is a hydrogen atom or a COOX group where X is a hydrogen atom or an alkyl radical containing from one to six carbon atoms, and their preparation by reacting an organic sulphonic ester of an alcohol of the cyclopentanoperhydrophenanthrene series with a carboxylic acid ester containing the group CHM where M is a metal, and if the free acid is desired, hydrolysing the resulting ester of the cyclopentanoperhydrophenanthrene series.  As the carboxylic acid ester containing the group CHM there may be used sodium ethyl malonate, alkali hexyl malonate, sodium ethyl aceto acetate, potassium ethyl acetoacetate and magnesium methyl malonate.  As organic sulphonic esters of a sterol there may be used cholesterol-p-toluene-sulphonate, ergosterol methane sulphonate, testosterone methane sulphonate, dehydro androsterone benzene sulphonate and cholesterol methane sulphonate.  Examples are given of the preparation of 3-cholesterylmalonic dimethyl and diethyl esters, 3-ergosterylmalonic dimethyl and diethyl esters and 3-cholesteryl- and 3-ergosterylmalonic acids.
Patent GB-925399-A (GB)
Title: Improvements in bed-settees
IPC: A47C17/23
Filed: 1959-08-14
Abstract: 925,399. Bed-settees. J. R. THOMAS. Aug. 14, 1959, No. 27888/59. Class 52 (2). In a bed-settee wherein the seat frame is rearwardly invertible, and has one side hinged to foldable mattress frame sections extendible from beneath the seat to form a bed, pairs of links 66, 68 pivoted at their upper ends to each side of the seat frame 24 have their lower ends pivoted to a mounting strap 70 secured to the settee ends 14. A bell-crank lever 100 pivoted to the strap intermediate the lower link pivots is coupled to the link 66 by an actuating link 108 and to the link 68 by a tension-spring 90, a further tension spring 88 being connected between the link 66 and the mounting strap 70. The springs are normally under tension and assist in lifting the seat and, by the action of the bell-crank 100, are again tensioned after inversion of the seat frame during its lowering to bed position. Folding legs on the outer mattress frame sections are linked to the seat frame for automatic operation and ramps 116 behind the front rail 16 facilitate the movement of the frame sections thereover during unfolding. The overlay 144, Fig. 4, folds with the mattress frame and is held against slipping by a rod 148 slidable in a pocket 146 so that it can be inserted under the ends of stiffening strips 140, or other anchorages, on a fabric sheet 136 overlying the mattress linkwork in the seat frame.
Patent GB-637026-A (GB)
Title: Improvements in or relating to tread bands for fitment over wheel tyres of tractors or other vehicles
IPC: B60B15/26
Filed: 1947-10-20
Abstract: 637,026. Wheel tyres. BERRY, W. Oct. 20, 1947, No. 27967. [Classes 144 (i) and 144 (ii)] A detachable metal tread band, of the kind described in Specification 612,717, adapted for fitment over the tyres of tractor &c. wheels, is formed in two semi-circular parts 1, 2, the ends of which are braced by pairs of crossbars 4, 5 connected by bolts 7 for clamping the band tightly over the tyre tread. The band is fitted with staggered ground-engaging strakes 3 which are slotted to receive one or more continuous bands 9 to enable the device to be used on roads.
Patent GB-740516-A (GB)
Title: Improvements in or relating to thermostatic valve
Inventor: DRAPEAU HAROLD B
IPC: G05D23/02
Filed: 1953-10-12
Abstract: 740,516. Temperature-responsive actuating- elements. DOLE VALVE CO. Oct. 12, 1953, No. 27982/53. Class 64(2). [Also in Group XXIX] In a temperature-responsive element, a preformed body 52<SP>1</SP> or a mixture of high molecular weight alkalines and heat conducting material is contained in a chamber 30 rockably supported at 41 on a bridge 31, 37 mounted on a casing 10 of a butterfly valve 17, 19 in a car cooling system. The valve 17, 19 is pivoted at 27 on a piston 26 which is urged to protrude from the chamber 30, upon thermal expansion of the contents against the action of a spring 43 loading the valve to closure of a port 13. On excessive temperature, the piston 26 cocks out of the chamber 30 as shown and locks the valve open, after which the element requires repair.
Patent GB-464106-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic acid nitriles
Filed: 1935-10-10
Abstract: Aliphatic acid nitriles are obtained by heating the corresponding ammonium salts together with the corresponding free organic acid. The process may be effected with a fractionating column arranged so as to allow the nitrile to distil off as it is produced.  An iron catalyst such as an iron phosphate may be added, or the distillation vessel may be of an acid-resistant iron alloy such as Staybrite, the small amount of corrosion occurring yielding the catalyst. Separation of the nitrile from the distillate may be effected by fractional distillation, if desired after first adding enough acid to convert the ammonium salt present into the acid salt.  The nitrile may be separated from the distillate by salting-out by means of the ammonium salt.  This may be effected by neutralizing with ammonia the acid contained in the distillate and if necessary adding additional ammonium salt.  The nitrile layer is then distilled yielding first a nitrile-water azeotropic mixture and then the anhydrous nitrile.  In an example, acetonitrile is produced from ammonium acetate and acetic acid and the distillate is neutralized with ammonium carbonate to salt out the nitrile.
Patent GB-464279-A (GB)
Title: Method of and means for reinforcing pipes and the like made from concrete and the like
IPC: B28B21/62
Filed: 1935-10-10
Abstract: 464,279. Concrete pipes. RUML, B. Oct. 10, 1935, No. 28016. Convention date, Oct. 11, 1934. [Class 99 (ii)] [Also in Groups X and XI] Concrete pipes &c. are reinforced during manufacture by means of a transverse metal reinforcement such as a helically wound wire disposed in a heated state on a core, the reinforcing wire being heated to a constant temperature while being disposed on the core. The heat may be applied to the whole or to a portion of the wound wire. The wire may be heated by passing it over an electric contact before application to the core, the heating circuit being completed through the wire by a second contact which may be fixed to bear on the initial coil of wire or may be traversed so that the length of wire between the contacts is constant. When one contact is fixed, a member moving proportionately to the increase in the length of wound wire, operates a rheostat to regulate the current to maintain the wound wire at constant temperature. The wire becomes initially tensioned on cooling.
Patent GB-649374-A (GB)
Title: Improvements in and relating to electronic testing apparatus
Inventor: LAURENCE ROGER FREDERIC
IPC: G01R31/00
Filed: 1948-10-28
Abstract: 649,374. Energy measurements. LAURENCE INDUSTRIAL INSTRUMENT & CONTROL CO., Ltd. Oct. 28, 1948, No. 28025. [Class 37] In an electronic device for testing, e.g. exploders, the energy output of a source charges a condenser through a gate valve which has a square law voltage current characteristic and is opened for a predetermined short time period by a multivibrator triggered by the input, so that a valve voltmeter measuring the condenser voltage indicates the integrated output of the source. In Fig. 1 an exploder is connected through a range-switch selected resistor to a preset potentiometer R30 feeding a bridge rectifier MR<SP>1</SP> which develops a positive direct voltage proportional to the exploder output. This voltage triggers a multivibrator V<SP>1</SP>, V<SP>2</SP> which biasses a normally cut-off valve V<SP>8</SP> to conduct for a short time interval determined by the multivibrator circuit constants. The anode current of V<SP>3</SP> is proportional to the square of the anode voltage, which is derived from the rectifier output, and the valve charges the condenser C<SP>5</SP> to a voltage proportional to the integral of the square of the rectifier voltage over the time interval, so that a cathode follower valve voltmeter V<SP>4</SP> across the condenser gives an indication proportional to the exploder energy output. The switch S<SP>2</SP> discharges the condenser in preparation for subsequent tests, and the standing current in the meter M is bucked out by a current regulated by the variable resistance R<SP>28</SP>, while a relay A in the anode circuit shorts out the meter until V<SP>4</SP> passes its normal zero current, as a protection against excessive reverse current. In a modification (Fig. 2, not shown), switches are provided for " off," " run " and " reset " conditions, for connecting the meter to monitor the battery voltages, and for selecting measuring ranges for different exploders.
Patent GB-728688-A (GB)
Title: Process for the stabilisation of adenosine polyphosphoric acids
IPC: C12N15/10
Filed: 1952-11-07
Abstract: Adenosine polyphosphoric acids in the form of their salts, e.g sodium adenosine triphosphate, are stabilized by mixing therewith a basically reacting substance in amount sufficient to produce in solution a pH of at least 7.5.  Suitable substances are pyrophosphates, borates, glycocoll, and basic buffer mixtures such as a borate or glycocoll mixture.  The basic substances are generally added to solutions of the polyphosphate but a dry mixture may be obtained by joint crystallization from solution.
Patent GB-1151645-A (GB)
Title: Process For Controlling The Condition Of Water In Concrete Structures
IPC: G01N33/38
Filed: 1967-06-19
Abstract: 1,151,645. Thermal insulation. CENTRE D'ETUDES SCIENTIFIQUES ET TECHNIQUES. 19 June, 1967 [23 June, 1966].,. No. 28088/67. Heading F2X. A reinforced concrete structure 7 surrounding an inner steel vessel 1 containing hot pressurized fluid is formed with a number of concentric drains 5, 5<SP>1</SP>, 511, the inner one 5 being placed at the outer surface of the vessel. Each drain is formed by a network of drain pipes or tubes. Water vapour can thus move in a direction opposite to that of the heat flux in the concrete and is drained from the structure. The inner concentric zones of concrete can be made of cemented concrete blocks (8) and the wall of the vessel can be formed with pleats to form with the inner wall of concrete a number of draining grooves (6).
Patent GB-1216628-A (GB)
Title: Liquid mixer and dispenser
IPC: B01F15/04
Filed: 1969-06-04
Abstract: 1,216,628. Mixing liquids in proportions. BERG & BURG N.V. 4 June, 1969 [6 June, 1968], No. 28149/69. Heading B1C. [Also in Division B8] In an apparatus for diluting a concentrated salt solution with soft water in a predetermined ratio to form a dialysate the concentrate is pumped from a tank 11 by a centrifugal pump 10 through a conduit 9, 12 into a mixing vessel 1 until it reaches a tubular electrode 6 surrounding the glass inlet pipe 5. The pump 10 is then stopped by the controller 40 and excess concentrate siphons back through the pipe 12, 9 and pump 10 until an amount determined by the position of the lower end 7 of the vertically adjustable pipe 5 remains in the vessel 1. Soft water is then admitted by valve 14 to the tangential inlet pipe 13 and liquid rises in the vessel 1 and siphon leg 15a until it reaches electrodes 19, when valve 14 closes and the mixture is automatically siphoned from vessel 1 into the secondary mixing vessel 18 which has a mechanical stirrer 20. When this is full it is discharged by automatic siphon 21 with a storage 'tank 22, which is discharged by a pump 26 having a by pass 29 with a regulating valve 30. Operation of the apparatus may be controlled by demand as sensed by liquid level electrodes 48, 49 in the tank 22. The secondary mixer 18 has a bleed tube 24 to ensure complete discharge; the remaining conduits are vent pipes and flushing lines.
Patent GB-649069-A (GB)
Title: Improvements relating to liquid fuel pumps
Inventor: NICOLLS WILFRID EDWARD WALTER
IPC: F02M41/12
Filed: 1948-10-30
Abstract: 649,069. Fuel injection pumps. C. A. V., Ltd. Oct. 30,1948, No. 28218. [Class 102(i)] A fuel injection pump comprises a pair of reciprocatory and rotary plungers c disposed in parallel bores in a pump casing, the fuel inlet and delivery ports f, i respectively being controlled by the rotational movements of the plungers and the two bores communicating with opposite ends of a chamber s containing a freely slidable shuttle t the extent of movement of which is variable and which determines the quantity of fuel delivered per stroke. The lower ends of the plungers are secured to pinions m, in mesh with a common pinion on the driving shaft r, and provided with cam faces p co-operating with collars q in the pump casing to effect reciprocation of the plungers. During the working stroke the inlet port f is first closed and fuel is then displaced into the chamber s causing the shuttle to move from one end position to the other, the extent of movement being adjustable through a stop v by a screw w. Delivery of fuel then takes place through port i which has been opened by the rotation of the plunger. The fuel in the chamber s is returned to the cylinder hose on the next suction stroke of the plunger. Any leakage fuel passing the shuttle is returned to the suction passages q through a passage z. Lubrication passages are provided for lubricating the working parts of the pump.
Patent GB-408643-A (GB)
Title: Improvements in or relating to thermionic valves and circuit arrangements therefor
IPC: H03F1/08
Filed: 1932-10-11
Abstract: 408,643. Thermionic valves and valve-circuits. WOODS, W. L. J., 1, Arygll Street, London, and WARREN, S. F., 27, Lowick Road, Harrow, Middlesex. Oct. 11, 1932, Nos. 28345 and 28503. Divided on 406,292. [Classes 39 (i) and 40 (v).] In circuits for pentode valves having an indirectly heated cathode surrounded in turn by a control grid, a positive screening grid, a low-potential suppressor-grid preventing the return flow of electrons from the anode, and an anode, the suppressor grid is not connected directly to the cathode, the anode or any electrode there-between but is connected to a point in the cathode heating- current circuit. This connection is made in the valve or its base or in the external circuit. The suppressor grid may be connected directly to the centre point or one end of the heater or may be connected to a tapping on the transformer winding supplying the heater or on a potentiometer across this winding. A resistance or other filter preventing potential fluctuations in the heater from reaching the suppressor grid may be inserted in the suppressor-grid connection and may be inductive and shunted by a condenser. In a receiver with the centre point of the heater earthed through the chassis and the cathode positively biassed, the suppressor grid is connected to the chassis through a spring contact on the valve base. The suppressor grid is thus maintained at a constant voltage below that of the anode when the cathode of a variable-mu valve is variably biassed. The electrode structure described in Specification 401,305 may be modified by insulating the external screen 6 outside the anode 4 from the suppressor grid 17 and by connecting the screen 6 to the cathode 2 through the cathode support 18 and the grid 17 to the centre point of the heater 20 through a wire 19. The upper mica sheet 11 may be below the solid or grid-like metal shield 12 which may then have a smaller central aperture and be slotted to prevent contact with the grid posts. Specification 401,296 also is referred to.
Patent GB-503874-A (GB)
Title: Improvements in or relating to the manufacture of metal articles or masses
IPC: B22F3/10
Filed: 1937-10-18
Abstract: 503,874. Obtaining coherent masses from powdered metals; alloys. JONES, W. D. Oct. 18, 1937, No. 28349. [Class 82 (i)] In making metal articles or masses by heating or sintering metal powders with or without pressure, such as bronze or. aluminium or magnesium or their alloys, a powdered hydride of calcium, titanium, zirconium, or an alkali metal, for example 0À5-5 per cent, is added to the powder to be treated.. In some cases, the metal of the hydride may alloy with the metal or metals; calcium may be so alloyed with a bronze consisting of 89 per cent of copper and 11 per cent of tin.
Patent GB-1456360-A (GB)
Title: Centre cooled laser mirror
IPC: G02B7/18
Filed: 1975-07-04
Abstract: 1456360 Laser mirror CATERPILLAR TRACTOR CO 4 July 1975 [4 Nov 1974]  28352/75 Heading G2J Liquid coolant is circulated in a chamber 20 in the body of the mirror. The central area bounded by wall 26 is immediately behind the area intended to reflect the beam and the annular space surrounding it communicates with the central area by passages 32. Ports 38 in the annulus and the centra port allow passage of the fluid the flow of which is distributed by guides 42, 44.
Patent GB-801164-A (GB)
Title: Wheeled parcel carriers
Inventor: SHIELD LANSING PETER
IPC: B62B3/18
Filed: 1956-09-18
Abstract: 801,164. Hand trucks. GRAND UNION CO. Sept. 18, 1956, No. 28472/56. Class 108(1) A parcel carrier has two inverted U-shaped members 12, 14 provided with castors 16 and held in converging relation for nesting purposes by two  U - shaped members 4 joined at their upper ends by plates 24 having bearing apertures for trunnions 28 secured to a wire basket 6. The wire frame of the basket is provided with notches 44, 46 which are engaged by the spring-loaded catch 10 to maintain the basket in the horizontal position, as shown, or the vertical position when nested.
Patent GB-925306-A (GB)
Title: Bulk evaporator for concentrating sugar solutions
IPC: C13B25/00
Filed: 1961-08-08
Abstract: <PICT:0925306/III/1> <PICT:0925306/III/2> <PICT:0925306/III/3> In an evaporator for sugar solutions, the heating arrangement (Fig. 1) comprises two separate calandrias 6, 61, closed at the top by plates 1 and 11, at the bottom by plates 2 and 21, and at the sides by plates 4, 7, 41 and 71 respectively.  The calandrias are traversed by the open pipes 3, 31.  Steam is supplied as heating medium for the calandrias via steamchest 13.  The calandrias are spaced apart by the bars p  10, 101, joined by a sleeve 11, providing an intermediate open-ended well 9 between the calandrias, which is used as a liquid recirculation chamber.  The sides of the well consist of plates 7, 71, 4 and 41 (Fig. 2), plates 4 and 41 being joined together by a welded seam 8.  The sugar solution is introduced into the bulk evaporator (Fig. 3) via line 15, and fills the chamber 14, rising to a determined height in the heated pipes 3, 31.  Evaporation of the solution takes place in pipes 3, 31, and the mixture of vapour and liquid rises up pipes 3, 31 into chamber 12.  The liquid separates from the vapour in chamber 12, and returns to chamber 14 via well 9 for further evaporation.