baber/WOPTO huggingface dataset:
Patent GB-324708-A (GB)
Title: Improvements in or relating to photographic enlarging apparatus
IPC: G03B27/54
Filed: 1928-11-01
Abstract: 324,708. Boardman, R. V. Nov. 1, 1928. Enlarging apparatus consists of a conical lamp chamber 20 closed at the base by an opal glass diffusing screen 18, a cylindrical reflector 21 mounted within the lamp chamber close up to the screen 18, a ventilated chamber 22 interposed between the screen and the negative holder, and the usual bellows 11 and lens 10 fitted below the holder. The above combination may be adjustable along vertical rails above the sensitized surface. The negative is held in guides 12 closed at one end by a hinged stop 15, so that when three negatives are inserted in the guides the middle one is in position for reproduction. The upper end of the lamp chamber may be provided with light-trapped baffles 29.
Patent GB-1313593-A (GB)
Title: Dibenzothiadiazepine derivative
IPC: C07D285/36
Filed: 1970-07-01
Abstract: 1313593 Dibenzothiadiazepine derivative BRISTOL-MYERS CO 1 July 1970 [2 July 1969] 31924/70 Heading C2C 5,5 - Dioxo - 6 - methyl - 11 - [3 - (N - methyl- N - (1 - phenyl - 2 - propyl)amino)propyl]dibenzo[1,2,5]thiadiazepine and its acid addition salts are prepared by standard methods. The preparation of 3-[N-methyl-N-(1-phenyl- 2 - propyl)amino] - 1 - propanol and its oxalate, N - methyl - N - (1 - phenyl - 2 - propyl) - 3- chloropropylamine hydrochloride and 11-(3-chloropropyl) - 5,5 - dioxo - 6 - methyldibenzo[1,2,5]- thiadiazepine is described. The above compound and its salts are coronary vasodilators.
Patent GB-338688-A (GB)
Title: Improvements in making or re-melting alloys of aluminium and iron
IPC: C21C7/076
Filed: 1929-10-21
Abstract: 338,688. British & Dominions Feralloy, Ltd., and Bampfylde, J. W. Oct.. 21, 1929. Alloys.-In making an alloy of iron and aluminium from the metals, or in remelting an iron-aluminium alloy, fluorspar or strontium fluoride is added during the melting operation. In making the alloy, the fluorspar is preferably added to or with the solid iron; after melting the iron the slag is removed and more fluorspar added before the first portions of the aluminium, more fluorspar being added while the rest of the aluminium is added.
Patent GB-940014-A (GB)
Title: Improvements in or relating to coated welding electrodes and the manufacture thereof
IPC: B23K35/04
Filed: 1962-08-21
Abstract: 940,014. Making electrodes; welding by fusion. HOLDING INTERCITO S.A. Aug. 21, 1962 [Aug. 25, 1961], No. 32145/62. Headings B3A and B3R. [Also in Division B4] A welding electrode having a coating formed of at least two different compositions disposed in segmented array around a core wire is made by pressing together segments 11, 12, 13 and 21, 22, 23, Fig. 1, of the different compositions to form a cylindrical block 1 with a central bore 2, loading one or more of the blocks into a coating press, Fig. 2, through which a core wire 8 is fed and extruding a coating on to the core wire. The segments are formed by individual pressings or by pressing a cylinder and cutting into segments. The segments may have colours indicative of their composition. A number of the blocks 1 are located in the cylinder 5 of the coating press around a guide tube 6 for the core wire and are extruded by a piston 7.
Patent GB-865962-A (GB)
Title: Improvements in or relating to spatially oriented data processing circuits
IPC: G06V10/36
Filed: 1959-09-22
Abstract: 865,962. Recognizing characters &c. WESTERN ELECTRIC CO. Inc. Sept. 22, 1959 [Oct. 7, 1958], No. 32185/59. Class 106 (1). A spatially-oriented data processing circuit comprises an array of input devices, a corresponding array of threshold-responsive translation devices each connected respectively to its corresponding input device and to adjacent input devices, and an array of output devices for indicating the states of said translation devices. The embodiment comprises photoelectric cells representing an input field, Fig. 1, a translation field, and an output field. Each input is modified according to its immediate neighbours, itself, and various external instructions. Voltages produced by the presence of neighbours are added to which sum its own voltage may be added, subtracted or neither. The final sum has then to overcome a bias before a corresponding output is registered in the output field. The operator may vary at will the bias and the instructions " add," " subtract " and " self " (neither). Operation.-Photo-cell 31, Fig. 3A, corresponds to the centre input 28, Fig. 1, and photo-cells 32-35, Figs. 3A, 3B, correspond to its immediate neighbours. A signal on a line P opens a gate 54 to allow the output of the cell 31 to energize (or not energize) a nip-nop 58 which causes contacts 64, 66 to close to apply a positive, negative or zero potential (corresponding to the " subtract," " add " and " self " instructions) to the transistor 36 whilst positive potentials are applied to transistors 37-40. The transistors 36-40 switch from the cut-off state to the saturated state when the input voltage goes negative. A bias voltage, applied by the actuation of selected ones of relays 86-90, prevents saturation before one, two, &c., as desired, neighbouring photo-cells have been energized. Upon saturation of a transistor the corresponding flip-flop and lamp, e.g. 46, 41, is energized. The output may itself be modified by applying a signal to the lines O, upon which the flip-flops 46-50 operate the device. Reset pulses reset the various components. Specification 862,257 is referred to.
Patent GB-175247-A (GB)
Title: Apparatus for the direct injection of liquid fuel into internal combustion engines
IPC: F02M59/36
Filed: 1921-12-01
Abstract: 175,247. Maschinenfabrik Augsburg- N³rnberg Akt.-Ges. Feb. 9, 1921, [Convention date]. Cylinders receiving liquid fuel.-In fuel-supplying systems in which the fuel passes from the pump into a pressure accumulator and in which the periods of opening of both the pump suction valve and the injection valve can be simultaneously varied, the injector valve is controlled by trip gear. Both the fuel-injection valve h and the pump suction valve d are opened through link work actuated from the eccentric-actuated pump plunger a, the period of opening in both cases being controlled by the regulator shaft o, which moves the tappet e in relation to the suction valve d to control the latter, and sets the arm p to trip the bell-crank lever n to control the closing of the fuel-valve h. Fuel is delivered past the automatic non-return valve l into the pressure accumulator g whence it passes through the fuel-valve h, which may be situated at the spraying-orifice, to the combustion chamber.
Patent GB-1154552-A (GB)
Title: Device for Charging Alloyed Iron and Secondary Raw Materials into a Steel-Making Furnace.
Inventor: TAGIRI KOICHI
IPC: F27D25/00
Filed: 1966-07-19
Abstract: 1,154,552. Charging metallurgical converters. YAWATA IRON & STEEL CO. Ltd. 19 July, 1966, No. 32302/66. Heading F4B. A shoot for charging raw materials and alloyed irons into a metallurgical converter comprises an outer pipe 8 in communication with a supply pipe 5 through an opening 12, and an inner pipe 6 having a similar opening 10, said pipe 6 being slidably insertable in the outer pipe 8. The inner pipe 6 is moved by operating means, such as an oil-pressure cylinder 7 to bring the openings 10 and 12 together, whereby the material can be charged into the furnace from the pipe 5.
Patent GB-983003-A (GB)
Title: Apparatus for supplying liquid
IPC: B67D1/08
Filed: 1961-12-14
Abstract: 983,003. Beverage making apparatus. GENERAL FOODS CORPORATION. Dec. 14, 1961 [Jan. 26, 1961], No. 32376/63. Divided out of 983,001. Heading A4D. [Also in Division F4] In a beverage making apparatus boiling water or other liquid is delivered to a decanter 16 by apparatus comprising a vessel 15 in which the liquid 69 is heated to its boiling point, a standpipe 70, a control 71 which maintains the liquid at a predetermined level, internal heating coils 78 immersed in the liquid, an external heating unit 77 and a vent in the upper wall 81 of vessel 15 which is closed when the liquid has been heated to boiling point. The control 71 employs an electrode 72 which extends downwardly and acts to shut off the supply of liquid through an intake pipe 73 when he liquid contacts the electrode. Heater unit 77 maintains the liquid at a temperature of 150-169‹F. and heating coils 78 are energized only when it is desired to heat the liquid 69 to its boiling point at which temperature the vapour pressure in the space 80 between the liquid and the upper wall 81 of vessel 15 increases to force liquid into the end 82 of standpipe 70 until the liquid level falls to the level 76 when vapour enters the pipe 70 and discharge of liquid ceases. To prevent discharge of small amounts of liquid through pipe 70 before the liquid has reached its boiling point vent means are provided in wall 81 and include a T-shaped conduit 83 cpnnected to a diaphragm pressure switch 86 and a vent valve 89 which which is closed by switch 86 at a vapour pressure just below that at boiling point. Vapour ceases to be discharged via the valve to standpipe 70 and increases to discharge the liquid. Specification 983,002 also is referred to.
Patent GB-180969-A (GB)
Title: Improvements in valves
IPC: F16K3/02
Filed: 1921-12-06
Abstract: 180,969. Marks, E. C. R., (Naamlooze Vennootschap Kopergieterij, Appendage-en Pompenfabriek van G. Dikkers & Co.). Dec. 6, 1921. Seats.-In parallel, sliding, or like valves, the seating - rings are held between two separate tubular parts of the casing and the central part housing the valve member. The seats 4, 4<1> are oppositely disposed in the, central part 3, to which they are clamped by the tubular parts 5, 5<1>, which are recessed to receive the flanges 4<2>, 4<3> of the seats. Packing-rings are fitted between the central and tubular parts and around the seats. Alternatively the seat flanges may engage grooves In the central member so that the seats may be renewed by removing the central member only.
Patent GB-1349719-A (GB)
Title: Protector for electric circuits
IPC: H01H85/153
Filed: 1971-07-13
Abstract: 1349719 Fusible cut-outs McGRAWEDISON CO 13 July 1971 [29 July 1970] 32737/71 Heading H2G An electrical device 20 comprises a yieldable annulus 26 disposed in an annular groove 24 formed in a ceramic housing 22 at each end thereof, and a cap-like terminal 28 telescoped on to each end of the housing 22 and coldformed at its free edge into the yieldable annulus 26. The housing is formed with at least one passage and as shown houses a fusible element 46 in a single passage 25. The cap-like terminals may be provided with locking ridges 31 or indentations at their free edges, may be hermetically sealed to the housing and may comprise a securing blade 32 which has a narrow end 33 soldered to both the ferrule portion 28 and the fusible element 46. Many suitable forms of yieldable annuli which may be of, for example, teflon (R.T.M.), silicon rubber, neoprene, rubber, aluminium, copper, zinc, tin or lead, are described in the Specification.
Patent GB-1536156-A (GB)
Title: Urethanes with siloxanes
IPC: C09K23/54
Filed: 1975-12-09
Abstract: 1536156 Polyurethane dispersions modified with siloxanes DOW CORNING CORP 9 Dec 1975 [8 Aug 1975] 32774/78 Divided out of 1536155 Headings C3R C3T and C3M A homogeneous polymeric dispersion comprises (a) 55 to 99 pbw of a curable urethane resin composition or an air-driable, essentially pre-cured urethane resin composition which is solvent-dispersed; (b) 1 to 45 pbw of a fluid which is incompatible with the urethane resin composition and which has a viscosity not exceeding 20,000,000 cs. at 25 C., wherein (a)+(b) is equal to 100 pbw; (c) 1 to 20% wt. based on the weight of (b) of a dispersing agent capable of maintaining (b) dispersed in (a) which is a siloxane-organic copolymer selected from (1) polydimethylsiloxane - organic copolymers in which the polydimethylsiloxane  portion has a molecular weight of at least 1400 and the organic portion consists essentially of a polyoxyethylene polymer having a molecular weight of at least 500, or a polyoxyethylenepolyoxypropylene copolymer having a molecular weight of at least 1000 and the polyoxypropylene portion constitutes up to 50 mole per cent of the organic portion of the siloxanepolyoxyalkylene copolymer, said organic portion being attached to silicon atoms via siliconcarbon bonds, and (ii) polydimethylsiloxaneorganic copolymers which are reaction products produced by heating a mixture of an hydroxylated polydimethylsiloxane, having a molecular weight of at least 1400, and a hydroxylated polyoxyethylene polymer, having a molecular weight of at least 500, or a hydroxylated polyoxyethylenepolyoxypropylene copolymer having a molecular weight of at least 1000 and the polyoxypropylene portion constitutes up to 50 mole per cent of the organic portion of the siloxane-polyoxyalkylene copolymer. Suitable additives (b) include fluid siloxanes such as trimethylsilyl endblocked polydimethylsiloxane, trimethylsilyl endblocked trifluoropropylmethylsiloxane and mixtures of either siloxane with a siloxane oopolymer composed of SiO 2  units and R 3 SiO 1/2  units; liquid polyolefins, e.g. polybutadiene, polybutene and styrenebutadiene copolymers; mineral oils and other petroleum oils and solvents such as naphthol mineral spirits. Additive (b) may function as a lubricant or it may be a solvent used in the manufacture of microporous coatings where the solvent forms the pores in the reacting medium, and after curing, the solvent is evaporated. Optional additives include fillers pigments, heat and light stabilizers, and antioxidants.
Patent GB-377546-A (GB)
Title: Improvements in and relating to horizontal forging machines
IPC: B21J9/12
Filed: 1931-11-26
Abstract: 377,546. Forging. EVANS, O., 27, Chancery Lane, London.-(Sohiess-Defries Akt.-Ges.; 114, K÷lnerstrasse, Diisseldorf, Germany.) Nov. 26, 1931, No. 32846. [Class 83 (iv).] Deis.-A lever 7 pivoted on the side of the machine remote from an upsetting stamp 11 is swung out of position to permit the work 3 to be moved along a bed 5 into position between clamping-jaws 2, the lever then being raised to bring up a stop 8 thereon against which the work is caused to abut. The supporting member 6 for the gauge stop may be adjusted longitudinally by nuts working on screwed spindles.
Patent GB-462564-A (GB)
Title: Improvements in or relating to d.c. amplifiers
IPC: H03F3/36
Filed: 1935-11-27
Abstract: 462,564. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Nov. 27, 1935, No. 32890. [Class 40 (v)] In a two-stage D.C. amplifier, the second stage is a valve V2, particularly a pentode, having an outer grid 8 separated from the cathode 6 by an inner grid 7, the grid 8 being conductively connected to the anode 5 of the first stage V1, and the coupling between the stages is so related to the mutual conductance of the second stage that the A.C. component of the anode current of the second stage is always opposite in phase and substantially equal in magnitude to the A.C. component of the anode current of the first stage, so that the signals are prevented from reaching the supply circuit. In the arrangement shown, the first valve V1 is also a pentode, but the input terminal 11 is connected to the first grid 2 of the valve. The other input terminal 12 is connected to the cathodes 1, 6. Automatic bias for the grids 2, 7 is provided by resistances 23, 24 in series, carrying the anode currents. The bias of grid 7 is that across the whole of resistance 23 and is applied through a grid leak 18, that of grid 2 is obtained from a variable tapping 27 on the resistance 23. The output terminal 13 is connected to the grid 8 and to a variable tapping on the anode resistance 15 of the first valve, the other output terminal 14 being connected to the anode 10 of the second stage. By adjusting the grid bias on 2 and the tapping on 15, the gain of the second stage is made unity, so that the A.C. component 12 of the current flowing in the anode circuit of the valve V2 is equal and opposite to the A.C. component I1 of the current flowing in the anode circuit of the valve V1. Signal voltages of equal amplitude but opposite sign may be taken from the terminals 13, 14 and used in a television transmitter or receiver. Specifications 314,605, [Class 40 (v)], and 447,879 are referred to. The Provisional Specification describes another arrangement in which the A.C. components are not balanced and the bias for the grids is obtained from batteries.
Patent GB-462196-A (GB)
Title: An improvement in or relating to self-acting mules
IPC: D01H3/00
Filed: 1935-11-28
Abstract: 462,196. Spinning mules. MOSS, J. Nov. 28, 1935, No. 32974. [Class 120 (ii)] In a spinning-mule the upward motion of the counter-faller a at the end of the outward run is checked or eased by means supplemental to the means ordinarily provided for weighting the counter-faller and comprising an arm h, Fig. 1, provided on the counter-faller shaft c and connected at its end to a strap or like flexible member i which passes once or twice round a pulley j and is weighted at k. The strap i may encircle the winding-faller shaft f, Fig. 2, in addition to or in substitution for passing round the pulley j. In a further modification the strap may be given one or more turns round the stop rod g, Fig. 3. A weighted lever may be substituted for the weight k. Specification 8548/14, [Class 120 (ii)], is referred to.
Patent GB-621820-A (GB)
Title: Process for the production of a derivative of benzotetronic acid
IPC: C07D311/48
Filed: 1946-11-06
Abstract: A derivative of benzotetronic acid is obtained by condensing two molecules of benzotetronic acid with one molecule of a glyoxylic acid ester, preferably in a solvent, e.g. in boiling water, whereafter the condensation product is purified, if necessary, by dissolving in alkali and precipitating with acids and by recrystallization.
Patent GB-465579-A (GB)
Title: Improvements relating to the ganging or trimming of circuits in radio receiving apparatus
IPC: H04B17/20
Filed: 1936-12-04
Abstract: 465,579. Wireless receiving-apparatus. UNGARISCHE WOLFRAMLAMPEN FABRIK J. KREMENEZKY AKT.-GES. Dec. 4, 1936, No. 33305. Convention date, Dec. 4, 1935. [Class 40 (v)] The ganging or trimming of the tuned circuits in a radio receiver is effected by applying to the input all frequencies in the tuning range and measuring the output as the receiver tuning is varied. The Figure shows a generator comprising a low frequency oscillator Rl, R2 over driving a triode amplifier R3. A filter C.R.P. is provided to equalize the output over the frequency range and the potentiometer P permits the voltage of the output to be regulated.
Patent GB-176086-A (GB)
Title: Improvements in couplers for railway and like vehicles
IPC: B61G1/06
Filed: 1920-11-25
Abstract: 176,086. Mitchell, J., Cossey, J. C. G., and Adams, Sir H. Goold-. Nov. 25, 1920. Addition to 164,850. Couplings automatic.-Relates to automatic couplings as described in the parent Specification, in which the coupler heads are maintained in close engagement by means of a wedge-shaped member on the locking-bar which automatically moves into deeper engagement with the disc hook as wear occurs, and consists mainly in means whereby the gravity latch which retains the locking-bar in its set position for automatic coupling, is lifted by the locking-bar by a constant amount independent of the extent of the inward movement of the bar and has a terminal extension adapted to prevent the locking-bar from riding over the latch. The gear for retaining the locking-bar in the withdrawn position is also modified. The locking-bar 7, Fig. 2, has the wedge portion 10 offset, of helical formation, and of uniform thickness, and it engages with a corresponding helical surface on the disc hook 5. The gravity latch 18, which is raised by the wedge, has a terminal extension 20 to prevent the locking-bar from riding over it on engagement. The locking-bar 7, Fig. 8, is withdrawn by means of the pivoted screw 28 which is forced against the side 2 of the coupler head when the handle 28 is raised, or in the modification shown in Fig. 9, a toothed segment 34 mounted eccentrically in an eye 31 at the end of the locking-bar may engage with a projection 35 on the coupler head so that when the handle 29 is half turned the locking-bar is withdrawn.
Patent GB-1127555-A (GB)
Title: Improvements relating to the sanding of sludge drying beds
Inventor: HARTLEY CYRIL JOHN
IPC: C02F11/16
Filed: 1967-07-20
Abstract: 1,127,555. Sanding sludge drying beds. HARTLEYS (STOKE-ON-TRENT) Ltd. 20 July, 1967, No. 33370/67. Heading B8E. Parting sand is replaced in a sludge drying bed 10 from hoppers 16 mounted on a gantry 13 covering one or more beds. As shown in Fig. 4 the hoppers 16 may be tipped to discharge the sand by rotation of a handle 31 driving a worm 33 and worm wheel 32. A baffle plate 35 prevents excess discharge while beaters 54 may be fitted to throw out the sand more equally than by simple tipping, particularly when the sand is wet. A screeding plate 36 may be used to level the sand and ploughs (not shown) fitted to close the gaps left in the discharged sand between the hoppers 16. In the alternative arrangement shown in Fig. 5 the hoppers 16 are fixed, the sand being discharged through narrowed outlets 40 fitted with rotating blades 42 driven by a chain drive 50 linked to a drive for the gantry carriage wheels 28. Radial stirrers 46 coupled to the blades 42 loosen the sand if damp. Non-tipping hoppers may be provided with a rotating disc or spinner (not shown) mounted below the open bottom of the hopper so that as the sand falls on to the spinner it will be flung off and spread over the surface of the bed.
Patent GB-366971-A (GB)
Title: Improvements in treating mineral salts
IPC: C01F5/30
Filed: 1930-11-06
Abstract: <PICT:0366971/III/1> Magnesium chloride, either alone or mixed with sodium chloride, potassium chloride or ammonium chloride, and also in the form of double salts such as carnallite or ammonium carnallite, is dehydrated in two stages.  In the first stage, the compounds are partially dehydrated by introducing them continuously or intermittently into the upper end of a drying apparatus through which they descend while a current of hot air is passed upwardly through the mass, and the dehydrated products are continuously or intermittently removed from the lower end of the apparatus, e.g. by a mechanical grate.  In the second stage, the partially dehydrated products are similarly treated by a countercurrent of hot hydrochloric acid gas to obtain the anhydrous salt, the temperatures in both stages being so regulated that the desired degree of dehydration is obtained in the lower part of the furnace and the upper portion of the mass is not heated to the fusion or sintering point.  No external heating is used in either stage. For the preparation of the dihydrate, the temperature at the bottom of the mass ranges from 140-160 DEG  C., and for the tetrahydrate 120-140 DEG  C., while the temperature of the exit gases is 60-80 DEG  C.  In the preparation of the anhydrous salt, the temperatures are 450-550 DEG  C. and 150-250 DEG  C. respectively.  A suitable apparatus is shown in the Figure, wherein the salt is fed down through the furnace a, which may have an enamel or ceramic lining, in counter-current to the drying agent which is forced in through the opening d after passing through a heater p.  The dehydrated material is removed by a rotating grate b and falls into a tapping chamber g closed by valves h<1>, h<2>. Thermometers t<1>, t<2>, t<3> are used to regulate the temperature of the drying agent and of the mass.  The inlet for the drying agent may be arranged above the grate, and provision may be made for evacuating the apparatus or rinsing with indifferent gases to remove the air contained in the mass before the drying commences. When preparing the anhydrous salt, the hydrogen chloride issuing from the apparatus is dried, reheated and recycled through the furnace, any losses being made up from a suitable supply.