baber/WOPTO huggingface dataset:
Patent GB-802739-A (GB)
Title: Heating apparatus for metallurgical crucibles
Inventor: WADE GEORGE ROLAND
IPC: F27B14/08
Filed: 1955-06-27
Abstract: 802,739. Mounting burners. LUCAS (INDUSTRIES), Ltd., J. May 11, 1956 [June 27, 1955], No. 18466/55. Class 75(1) A liquid fuel combustion chamber supplied with fuel as through a pipe j, for heating a metallurgical crucible k is supported at one end of an arm h, which may be in the form of a pipe, extending from a vertically and angularly adjustable pillar a and carrying at the other end an electrically driven blower g which is arranged to supply the combustion chamber through the pipe h with air. The pillar a is carried by a tubular socket b inserted, e.g. in the ground or extending below a platform carrying the pillar. A pair of half-rings d on the upper end of the socket engage in one of a plurality of circumferential grooves c along the pillar to secure the latter at the desired height.
Patent GB-1431187-A (GB)
Title: Indicating means for photographic cameras
IPC: G03B7/26
Filed: 1973-04-17
Abstract: 1431187 Indicators for cameras AGFAGEVAERTAG 17 April 1973 [18 April 1972] 18474/73 Heading G2A An indicating device for a camera comprises a light emitting diode 3 which is only activated to emit light when both the output voltage of a battery 1 exceeds a predetermined value and the intensity of illumination incident on photosensitive means e.g. photo-resistor 7 falls below a predetermined value. When photo-resistor 7 is insufficiently illuminated, i.e. prevalent lighting conditions are inadequate for normal exposure, the current flowing through transistor 6 increases, the threshold value of diode 3 is exceeded and emits light. To test the battery voltage photoresistor 7 is covered by a shutter 9 to render transistor 6 fully conducting. If the battery voltage is at or below the working minimum diode 3 will only emit light weakly or not at all. The minimum voltage testing point and minimum illumination point are set by variable resistors 4 and 8 respectively. In an alternative embodiment the photo-resistor forms part of a differential photo-resistor, the other part being connected to an electronic exposure control circuit.
Patent GB-348434-A (GB)
Title: Improvements in and relating to tapping clamps for high voltage electric live lines
IPC: H01R11/15
Filed: 1930-06-17
Abstract: 348,434. Rigid-jaw wrenches. FREEBURY, P., 8, Stour Street, Oamaru, Otago, New Zealand. J u n e 17, 1930, No. 18491. Convention date, Feb. 14. [Class 61 (iii).] Handles.-A clamping screw 5 for an electric coupling for overhead lines is turned by a spanner comprising a head 15 that has a T-shaped slot 16 cut laterally therein. The head is mounted on a handle 17 of treated wood, or other insulating material.
Patent GB-910145-A (GB)
Title: Benzothiadiazine compounds and process for their preparation
Filed: 1961-05-23
Abstract: The invention comprises benzothiadiazine derivatives of the formula <FORM:0910145/IV (b)/1> wherein A is H, Cl, Br, CF3 or C1-3 alkyl or alkoxy and R and R1 are H or C1-3 alkyl except that R cannot be an isopropyl group, and non-toxic salts of these compounds, and the preparation of the above compounds by (a) condensing an appropriate 2,4-disulphamoyl aniline with an aldehyde BCH2CHO or an acetal or hemiacetal thereof wherein B is CF3CH2S- or is a halogen atom or alkyl or aryl sulphonic acid residue in which case the resulting product is condensed with trifluoroethyl mercaptan or (b) condensing the 2-alkalimetal derivative of a 3-ethylthiomethyl-7-sulphamoyl - 3,4 - dihydrobenzothiadiazine-1,1-dioxide with methyl, ethyl or n-propyl bromide or iodide in an inert polar solvent at 5 DEG -35 DEG C. to introduce the group R.  Trifluoroethylthioacetaldehyde dimethylacetal used as a starting material is made by treating mercaptoacetaldehyde dimethylacetal with trifluoroethyl iodide in the presence of sodium methoxide.  Pharmaceutical preparations having diuretic and saliuretic properties comprise the above compounds of the invention or their salts with pharmacologically acceptable cations such as sodium, potassium, calcium or magnesium in combination with pharmaceutical carriers suitable for oral or parenteral, e.g. intramuscular, intraveneous or subcutaneous administration. The preparations suitably take the form of tablets, capsules, lozenges, troches and solutions.
Patent GB-615930-A (GB)
Title: Improvements in or relating to fluid flow valves or governors
IPC: G05D7/01
Filed: 1946-06-20
Abstract: 615,930. Fluid-actuated valves. PEET, A. June 20, 1946, No. 18564. [Class 135] A valve or governor particularly for regulat ing the supply of gas to a gas appliance, comprises a chamber 5 divided into inlet and outlet com partments 8 and 9 respectively by a fixed dia phragm 4 provided with holes 4b and formed with a stem 4a on which is slidably mounted a float ing sleeve 3a whose lower end is formed with a flange 3. The flange is adjustable to or from the inner surface of a per forated conical member 2 by a screw-threaded connection between the sleeve 3a and a tubular extension 13 of the conical member and locked in its adjusted position by a cap 14. In operation, the gas flows up through the holes 4b to lift the sleeve 3a, which flow will increase with increased pressure until the opening between the holes 4b and the flange 3 is equivalent to the adjusted opening whence any further increase in pressure will be unaccompanied by any increase in flow.
Patent GB-295491-A (GB)
Title: Improvements in display fittings for boots or shoes
IPC: A47F7/08
Filed: 1927-07-13
Abstract: 295,491. Saveker, T. J., (trading as Saveker, T.). July 13, 1927. Stand heads.-A display fitting, particularly for boots and shoes, comprises a spring bridge 1 with attachment means 3, 5 at its ends for engaging the article to be displayed with the spring under strain. As shown, the bridge 1 is made in spring steel strip, and is carried in a sliding clip 12, 13 by a spigot member 8 which rests in a stand 9. The strip 1 is held in the clip by a pressure plate 14. One end of the bridge 1 is fitted with a U-shaped clip 3, 4 to engage the sole of a boot or shoe, and the other end with a bowed strip 5 of spring steel to engage the heel. The clip 3 may be adjustable about the pivot 11. In a modification, Fig. 6, the clip piece for the sole is made of flat bar 15 with adjustable clips 18. The bridge 1 may be in two parts connected adjustably for altering the length. The parts of the members 3, 5 and 15 which engage the shoe may be covered with celluloid, rubber, or other soft material.
Patent GB-807171-A (GB)
Title: Apparatus for producing gas
IPC: C01B3/34
Filed: 1956-06-15
Abstract: 807,171. Generating furnace atmospheres; combustible gases. BRITISH FURNACES Ltd. June 15, 1956 [Sept. 19, 1955]. No. 18633/56. Classes 51 (1), 51 (2) and 55 (2). In a generator in which a furnace atmosphere gas is prepared by burning an air/gas mixture supplied by a burner 15 to a chamber 11 containing an oxidation catalyst 24, the temperature in said chamber is controlled by recirculating part of the atmosphere gas leaving a cooler 30 through pipe 35, a sediment trap 36, and pipes 38, 41 and 47 back to the chamber 11. Compressed air is fed through a pipe 20 to a venturi 18 supplied with gas through a pipe 22 under control of a regulator 21 subject to the pressure in the pipe 17 supplying the air/gas mixture to the burner 15. The supply of recirculated gases is under control of a regulator 40 subject to the pressure in pipe 17, and the supply line incorporates an orifice plate 42, a check valve 45 preventing back pressure, and a valve 44. The cooler 30 has a water spray 31, an overflow 29, and a recirculation system for the water wherein the latter is itself cooled in a heat exchanger 33. The generator may be operated automatically to produce rich, operating gas or lean, purging gas alternatively, in which case a by-pass line 50 having a valve 52 and an orifice plate 51 is provided. Valves 43, 44 and 52 are then relay or motor operated under control of a single electric switch 53. Orifice plate 42 or both orifice plates 42 and 51 may be replaced by motor-operated valves operated in accordance with the generator temperature.
Patent GB-900661-A (GB)
Title: Improvements in fluid-tight expansion couplings incorporating flexible bellows
Inventor: ROGERS VICTOR WILLIAM GEORGE
IPC: F16L51/02
Filed: 1960-05-26
Abstract: 900,661. Expansion joints. TEDDINGTON AIRCRAFT CONTROLS Ltd. May 2, 1961 [May 26, 1960], No. 18660/60. Class 99(1). In a fluid-tight, hinged, expansion coupling an inner flexible bellows 1, e.g. of metal, is connected at the ends thereof to flanges on a pair of outer hinge members. 2, 3, formed or provided with co-operating hinge plates having mating convex and concave surfaces of different radii whereby the former can roll in the latter. As shown, each member 2, 3 has a pair of arms 4, 5, the outer arms 5 being provided with wedge-shaped projections 6 having a convex tip and the arms 4 being formed with mating wedge-shaped recesses 7 of slightly greater angle and with a concave bottom of slightly greater radius than that of the convex tip.
Patent GB-1178766-A (GB)
Title: 5,10-Epoxy Steroids and their Conversions to Delta<5(10)>-Steroids
Inventor: STRIKE DONALD PETER
IPC: A61K31/567
Filed: 1967-04-24
Abstract: 1,178,766. 5,10 - Epoxy - steroids and #<SP>5(10)</SP>- steroids therefrom. AMERICAN HOME PRODUCTS CORP. 24 April, 1967 [26 Sept., 1966], No. 18664/67. Heading C2U. 13# - Alkyl - 5,10 - epoxygonan - 3# - ols, which, whatever the configuration of the 3-OH group, are novel when the 13-alkyl group is not CH 3 , are converted by deoxygenation, e.g. with zinc dust, an alkali metal iodide and acetic acid, to the corresponding 13#-alkylgon-5(10)-en-3#- ols. The 5,10-epoxygonan-3#-ols are in turn prepared by reduction, e.g. with sodium borohydride of the corresponding 3-ones, which are also novel when the 13-alkyl group is not CH 3 , with separation from any 3α-ol which may also be formed. The 13#-alkyl-5,10-epoxygonan-3- ones are in turn prepared by oxidation of the corresponding 13#-alkylgon-5(10)-en-3-ones, e.g. with a per-acid, themselves prepared, for example, by processes described in Specifications 1,010,053 1,010,054 and 1,041,279. The starting compounds can bear groups unaffected by the process reactions, e.g. 6-, 7- or 16-methyl; 11- or 16-OH or 17-OH-17-alkyl, or they can bear labile groups which can be protected to allow selective reduction at the 3- position, e.g. 11-oxo, 17-acetyl or -hydroxyacetyl or 17-OH-17-acetyl or -hydroxyacetyl which can be protected by ketalization. The novel compounds preferably have the structure where X is CH(OH), CH(Oacyl), CH(Oalkyl), CO or a-ketal thereof or C(alkyl or alkynyl)(OH); R<SP>1</SP> is C 2-5  n-alkyl and Y is CO or CH(OH). Examples describe the preparation of racemates of some of the above compounds and their conversion to racemates of the corresponding #<SP>5(10)</SP>-en-3#-ols. The novel 13#-polycarbonalkyl-5,10-epoxygonan-3-ones or -3-ols of the invention, some of which show metrotropic, anabolic and hypolipalmic acitivies, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-530566-A (GB)
Title: Improvements in sleeve valve internal combustion engines
IPC: F02B75/02
Filed: 1939-06-27
Abstract: 530,566. Oil engines; valves. KAMMER, G. S. June 27, 1939, No. 18757. [Classes 7 (iii) and 7 (vi)] The upper end of a sleeve valve 6 is protected from the combustion gases by a liner 17 of heatresisting metal attached to the cylinder head and having a cylindrical outer face to co-operate with the sleeve, an insulating-space 18 being formed by a depression in the cylinder head. An annular member surrounding the liner 17 may enter a groove in the end of the sleeve valve, so as to form a labyrinth passage ; or such an annular member may enter a groove in the piston crown 9. This crown is of heatresisting steel as described in Specification 530,534, [Group XXVI], and forms with the liner 17 the combustion chamber.
Patent GB-831484-A (GB)
Title: Improvements in or relating to electric protective systems
Inventor: BOWYER ARTHUR WILLIAM
IPC: H02H7/045
Filed: 1956-06-18
Abstract: 831,484. Protective cut-out arrangements. GENERAL ELECTRIC CO. Ltd. June 18, 1957 [June 18, 1956], No. 18824/56. Class 38 (5). [Also in Group XXXVI] In a circulating current type protective arrangement having bias and operating windings, the windings 7, 11 are arranged to influence magneto-resistive elements R1, R2 (see Group XXXVI), arranged in adjacent arms of a bridge circuit R1 . . . R4 so that under internal fault conditions the bridge circuit is unbalanced in a predetermined sense to cause operation of a polarized relay 1. The Complete Specification describes an arrangement for protecting a three-phase alternator. The Provisional Specification also refers to an impedance relay arrangement in which one of the elements is influenced by the load current and the other is influenced by the voltage.
Patent GB-455598-A (GB)
Title: Improvements in or relating to scanning systems for television and like cathode ray tube apparatus
IPC: H01J29/72
Filed: 1936-07-07
Abstract: 455,598. Television. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. July 7, 1936, No. 18862. Convention date, July 8, 1935. [Classes 39 (i) and 40 (iii)] Where a trapezium-shapec scanned area is produced by adding a frame frequency component to the line scan ning frequency, it is found that the scanned area is of the shape shown in Fig. 2, instead of that shown in Fig. 1. According to the invention the scanned area is made into the shape shown in Fig. 1 by setting the line and frame deflecting fields at an angle other than 90‹. One field may be electrostatic and the other electromagnetic.
Patent GB-990046-A (GB)
Title: Improvements in or relating to hydraulic valves
Inventor: KIBBLE JOHN DUNBAR
IPC: F15B13/02
Filed: 1960-05-27
Abstract: 990,046. Valves. COAL INDUSTRY (PATENTS) Ltd. May 25, 1961 [May 27, 1960], No. 18862/60. Heading F2V. A valve comprises a slider for connecting a first port to either a second or third port, an inlet through which operating fluid can move the slider, return means for the slider, means for applying fluid pressure to hold the slider against the action of the return means even if the operating pressure is removed, and selectively operable means to over-ride the effect of the fluid pressure and allow the return means to actuate the slider. When a supply of pressure fluid, controlled for example by a solenoid valve, is admitted to a port 10 it displaces a cap 39 and a closure member 41 to the left so that pressure fluid from a second port 9 flows through a seat 31 to a port 8 connected through a restrictor to apparatus, such as a pit prop. The port 8 is connected by a conduit (not shown) to a port 6 so that the pressure fluid also acts on a piston 43 to hold the closure member in its leftward position against a spring 46 after the solenoid valve has closed. Admission of pressure fluid to a port 5 restores the closure member to its original position in which the apparatus is connected to an exhaust port 7. The valve may be manually actuated by a key-operated screw 47. If the area of the cap 39 is smaller than that of a seat 25 the port 6 may be dispensed with since the hydraulic pressures in the spaces connected to ports 8 and 9 hold the valve in the operated position.
Patent GB-1446774-A (GB)
Title: Electron beam devices incorporating electron multipliers
IPC: H01J29/18
Filed: 1973-04-19
Abstract: 1446774 Cathode-ray display tubes and image intensifiers MULLARD Ltd 24 Jan 1974 [19 April 1973] 18965/73 Heading H1D An electron beam device (e.g. radar, TV c.r.t.s, or large area image intensifiers) comprises a channel plate structure providing hollow beams, an apertured focusing control electrode Mf whose potential controls the overall beam widths, and a patterned target S with concentric areas with differing responses to electron bombardment. The target may be a multicolour phosphor screen with circular phosphor areas, and may have guard rings (Fig. 4b, not shown). Outer areas (P 3 ) could merge with all adjacent (P 3 ) areas, and similarly for two-colour screens (Fig. 7, not shown). A further colour (e.g. yellow) could be produced by exciting parts of two phosphor rings. The minimum size beam may be dot rather than hollow cross-section to excite the central phosphor dot area. The channels may be flared, and non circular (e.g. pyramidal), the target patterns also being non- circular. Plate dimensions and potentials are detailed, and the dynodes may be formed by two sheet metal halves, and layers D may be insulating or resistive and may be discontinuous (e.g. lines or dots). Capacitance between the focus electrode and dynode M(n) may be reduced by increasing the transparency of Mf and increasing the Mf-M(n) separation. For large diameter tubes, the capacitance may preclude switching at dot-sequential frequency and line sequential displays are used. Various effects such as colour creep or flicker are discussed and Specification 1,331,938 referred to. The spot wobble method may be used for a single gun tube and the system may be 3 red line, 3 blue and 3 green. The control electrode of Fig. 1 (not shown) is identical with the dynodes but may require reduced secondary emission properties, and is preferably open or flared (e.g. as Fig. 2, not shown). Target and channel plate output face need not be planar (e.g. slightly curved). Fig. 6 (not shown) includes glass matrix M with resistive multiplier surfaces, and a grid (not shown) may be against electrode E1 to improve the field configuration as in Specification 1,417,643. Fig. 8 (not shown) is a "proximity" type image intensifier to cyclically display X-rays of varying hardness, or the input may be visible light. The c.r.t. of Fig. 9 (not shown) may be Tγ or alpha numeric display with pseudo-random scans. Variations in constructional features are incorporated by reference to other Specifications.
Patent GB-696820-A (GB)
Title: Improvements relating to joints for perambulators or the like
IPC: B62B9/14
Filed: 1950-07-29
Abstract: 696,820. Stays for hinged articles; hinges. MARMET, Ltd., and MORRISS, H. Sept. 6, 1951 [July 29, 1950], No. 18999/50. Classes 65 (i) and 65 (ii) A stay 4 for the hood is connected to the body 2 of a perambulator by a pivotal joint comprising a member 1 disposed at right angles to the stay and axially recessed to receive a peg 3 secured to the body and formed with a screw-threaded projecting end 7 engaged by a headed, screw-member 9 carried by a hole provided in the head of the stay, the outer surfaces of said heads lying flush with each other. The hole is formed with an annular shoulder 8 against which the head of the screw-member abuts.
Patent GB-381217-A (GB)
Title: Improvements relating to quick closing stop valves and the like
IPC: F16K31/363
Filed: 1931-07-02
Abstract: 381,217. Fluid-actuated valves. TURNBULL & CO., Ltd., A. and MILN, J. G., St. Mungo Works, Bishopbriggs, near Glasgow. July 2, 1931, No. 19070. [Class 135.] Valves controlled by pilot or relay valves.- A quick closing stop valve actuated by fluid pressure under the control of an auxiliary valve has the main valve 1a connected by a spindle 2 to a piston 1 working in a cylinder arranged in the casing. A leakage path 1c is provided to the space below the piston and ports 4, 5 below and above the piston lead to an auxiliary piston valve 7, provided with a port 9 leading to atmosphere and a port 8 connected by a pipe 10 to the inlet side of the main valve. When it is desired to close the main valve the auxiliary valve is actuated by a lever, rope, solenoid or hydraulic ram to connect the ports 5, 8 and 4, 9 so that live steam is admitted above the piston while the space below the piston is connected to exhaust. The main valve may be closed or its lift regulated by a screwed spindle 14 operated by a hand-wheel 13. The piston auxiliary valve may be replaced by a slide or double beat valve. Reference has been directed by the Comptroller to Specifications 5187/96, 251,161, and 336,867, [all in Class 135, Valves &c.].
Patent GB-977130-A (GB)
Title: Improvements in or relating to rotary electric switches
Inventor: SMITH KENNETH GRAHAM
IPC: B60Q1/14
Filed: 1961-05-26
Abstract: 977,130. Road traffic signalling apparatus. N. S. F. Ltd. May 28,1962 [May 26,1961], No. 19074/61. Heading G4Q. [Also in Division H2] Two rotary switches have rotors 21, 22, carrying spring-pressed bridging contacts for engaging arcuately extending fixed contacts carried by a common stator 23 (see Division H2), the switches being contained in a projection 2 of a housing 1 on an automobile steering column. A direction indicator control knob 5 has a shaft 6 connected to rotor 21, and the shaft 6 is connected to a self-cancelling mechanism comprising a pair of spring loaded pawls 14 operated by movement of the steering column. A lighting control knob 8 has a hollow shaft 9 connected to rotor 22. A horn button 10 has a shaft 11 passing through shaft 9 to actuate contacts 18, 19.
Patent GB-780980-A (GB)
Title: Improvements in and relating to the extraction of valuable constituents from slags
IPC: C22B1/08
Filed: 1954-06-29
Abstract: Slag, whilst still in the original molten condition is treated with a gaseous or solid halogenating agent, or a halogenating agent in the form of a gaseous suspension, and volatile compounds such as iron, aluminium, manganese and vanadium chlorides are collected and separated.  Suitable halogenating agents are gaseous chlorine and/or hydrochloric acid, alone or carrying entrained alkali or alkaline earth metal chlorides, e.g. sodium or calcium chloride, and these can be blown in below the level of the liquid slag.  If desired an oxidizing gas (e.g. air) a neutral gas (e.g. nitrogen) or a reducing gas (e.g. carbon monoxide) may be present. If aluminium chloride is to be produced the combination should be strongly reducing.  With basic open hearth slag, sodium chloride entrained in chlorine is preferred to calcium chloride in chlorine unless a temperature above 1500 DEG  C. is employed; with an acid open hearth or acid Bessemer slag, gaseous chlorine and/or calcium chloride may be used.  The slag may be tapped at 1600 DEG  C. into a heat insulated cast iron refractory-lined vessel, taken to the place of treatment and joined to a hood under which the injection of halogenating gas or suspension takes place.  The gaseous products are either passed through a box provided with baffles followed by an electrostatic precipitator or dust cyclone, conducted through a first condenser in which chlorides other than vanadium chloride and oxychloride are condensed, and a second condenser in which these two compounds are condensed.  The remaining gas, if it contains hydrochloric acid or chlorine is recycled.  Vanadium chlorides are decomposed to oxide by steam; iron and manganese chlorides are led to an aeration tank; hydrated ferric oxide is precipitated with caustic soda or limestone; a solution of manganous chloride remains.  Examples are given in which slags containing stated proportions of all or some of silica, ferrous and ferric oxides, manganous oxide, calcium oxide, magnesium oxide, barium oxide, aluminium oxide and phosphorus pentoxide are treated at 1500 DEG  C. with (1) chlorine; (2) calcium chloride entrained in a mixture of carbon monoxide, carbon dioxide, nitrogen and chlorine; (3) calcium chloride entrained in a mixture of air and chlorine.ALSO:A slag containing soluble sodium-silico-phosphates stated to be useful as a fertilizer is obtained by treating a slag such as a blast furnace or steel works slag whilst still in the original molten condition with a halogen salt entrained in a gas, e.g. in chlorine or hydrochloric acid.