baber/WOPTO huggingface dataset:
Patent GB-1175086-A (GB)
Title: Method of and Apparatus for use in Securing a Metal Member to a Flat Metal Sheet
IPC: B21D53/08
Filed: 1967-01-24
Abstract: 1,175,086. Making heat exchangers; soldering. STOLLE CORP. 24 Jan., 1967 [28 Jan., 1966], No. 3479/67. Headings B3A and B3R. In soldering or brazing an elongated metal member to a flat sheet of metal the member is positioned on the sheet in contact with solder or brazing material of lower melting point than the sheet or member, the sheet is clamped over substantially the entire area not occupied by the member, the assembly is heated to melt the metal of lower melting point and is then cooled. A jig for use in such a method comprises a flat metal plate and a block of non-metallic material of the same length and width as the plate secured to the underside of plate, the block having a recess on its underside with a resilient pad secured in the recess. In securing a sinuous copper tube to a flat aluminium sheet to produce a radiant heating-cooling panel three stations namely, assembly, heating and cooling are provided. At each station a support block 10 of annealed steel is arranged and over these blocks a perforated aluminium belt 13 is arranged to pass. The aluminium sheet 16 is placed on the belt at the first station, ribbon or wire 22 solder or brazing material and flux is disposed on the sheet and the sinuous tubing 15 is laid on the sheet upon the ribbon or adjacent the wire. The solder may be of 91% tin and 9% zinc. A jig 14b is placed over the assembly, the jig comprising a cast aluminium plate 17 to which is screwed a block 19 of asbestos fibre and inorganic binder, the underside of the block having a groove 20 to receive the tubing with a strip 21 of silicone rubber in the groove to press on the tubing. The belt 13 is moved to the heating station where the support block of annealed steel is heated to 510‹ F. to melt the solder and a weight is placed on the jig. After three minutes the belt is moved to the cooling station where the annealed steel support block is heated to 300‹ F. so that the solder soldifies in two minutes. Stiffening elements of the same or different metal may similarly be secured to a flat sheet.
Patent GB-452090-A (GB)
Title: Apparatus for and method of expanding pistons
IPC: B23P15/10
Filed: 1936-02-05
Abstract: 452,090. Expanding pistons. TRIGGS, W. W., 57, Lincoln.'s Inn Fields, London.- (Bartlett Hayward Co. ; Baltimore, U.S.A.) Feb. 5, 1936, No. 3496. [Classes 83 (ii) and 83 (iv)] [See also Group XXIII] The skirt of a worn or undersize piston 76 is expanded to the desired size or is cleaned by bombarding the inner surface of the skirt with solid particles, e.g. steel balls. Figs. 8 and 9 show one form of the apparatus in which an air injector 67 blows steel balls from a trough 61 against the inside of a piston as it is rotatably oscillated on its support 78 by the operator turning the hand wheel 99, which also causes the nozzle to be rocked by its trunnion-mounted air-supply pipe 73 through pin 102 and arm 105. When one half of the piston has been treated, the operator releases a pawl 91, Fig. 10 and rotates the support through 180‹ when the pawl engages the diametrically opposite notch to position the piston for bombarding the other half or two streams of balls may bombard both sides at once. To locate a piston in position, the side door 55 of the casing is opened which automatically closes the air valve 108. Where the piston is not enclosed in a casing 51 the gudgeon pin holes in the boss are covered by plates. U.S.A. Specification 1,181,467 is referred to.
Patent GB-419783-A (GB)
Title: Improvements in and relating to wireless receiving apparatus
IPC: H01Q7/04
Filed: 1934-02-02
Abstract: 419,783. Aerials ; wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Amalgamated Wireless (Australasia), Ltd. ; 47, York Street, Sydney, Australia.) Feb. 2, 1934, No. 3548. Convention date, Feb. 2, 1933. [Class 40 (v).] An omni-directional receiving system for reducing the effects of locally-produced disturbances, comprises a plurality of angularly disposed loop aerials, balanced electrostatic shielding means surrounding the aerials and means for combining the outputs from the aerials in such relative phase that the receiver responds equally to similar signals received from any direction. As shown, two mutually perpendicular loop aerials 6, 7 are surrounded by non-magnetic metal tubular shields 8, 9 respectively with gaps G therein at the points of intersection and connected to a further shield 10 containing the leads to the receiver R. The input circuit of the receiver comprises a tuned circuit L2, C and a resistance R1 in circuit therewith. The output of one of the loops is fed to a coil L1, inductively coupled to the circuit L2, C and that of the other applied across the resistance R1. The receiver proper may be within an earthed shield 12 connected to the shield 10. In a modification, the two aerials are each connected to a coil inductively coupled to the circuit L2, C, one of the coils being turned and only loosely coupled to the receiver input so that the amplitudes of the two inputs are comparable. In another embodiment switching is introduced to enable the aerial screens to be used themselves as a signal pick-up, in suitable circumstances.
Patent GB-1501592-A (GB)
Title: Pharmaceutical compositions
IPC: C07D333/22
Filed: 1976-01-29
Abstract: 1501592 Diuretic compositions MERCK & CO INC 29 Jan 1976 [3 Feb 1975] 03585/76 Heading A5B Pharmaceutical compositions having diuretic and saluretic activity comprise a phenoxyacetic acid compound of formula:- wherein R is thienyl, C 1-3  alkyl - substituted thienyl, or furyl, together with N - amidino - 3. 5 - diamino - 6 - chloropyrazine - carboxamide (i.e. amiloride), the mole ratio of phenoxyacetic acid compound to the carboxamide compound being from 100:1 to 10:1. The compositions are for oral administration e.g. as capsules.
Patent GB-1366803-A (GB)
Title: Coil unwinding apparatus
IPC: B21C47/24
Filed: 1972-01-26
Abstract: 1366803 Applying a coil to an uncoiler I UNGERER 26 Jan 1972 [23 July 1971] 3635/72 Heading B3E An apparatus for leading a wound coil of metal strip 1 on to a mandrel of an unreeler comprises a lifting device 4 and an optical device 10 arranged to direct a beam of light along the axis of the mandrel to a reflector 13 and the reflected light is received by the optical device which operates a relay to stop the lifting device. A time relay is preferably used so that the lifting device continues to lift the coil by half its central hole diameter after the optical device is actuated. The optical device may be a photodiode. A microswitch (30), Fig. 5 (not shown), on the cradle of the lifting device is actuated by the coil to operate the lifting jack 5 of the device. Several time relays may be provided and brought into circuit for a corresponding coil hole diameter. The mandrel may be in two parts or be a single expandible mandrel (18), Fig. 4 (not shown).
Patent GB-1171991-A (GB)
Title: Highway Crossing Signal Control System
IPC: B61L29/24
Filed: 1967-01-25
Abstract: 1,171,991. Level crossing control. GENERAL SIGNAL CORP. 25 Jan., 1967 [1 Feb., 1966], No. 3675/67. Heading B7N. In a level crossing control arrangement, each crossing e.g. A is provided with a transmitter 10 which supplies a modulated A.C. current of a predetermined frequency F1 to the electrically continuous track rails 2, a pair of selective track receivers 11, 13 at the outer ends of the approach track sections for the crossing and a pair of line receivers 12, 14 which receive the modulated A.C. signals from the track receivers 11, 13 via line wires 4, 6 and control the road crossing signals SA via interlocking equipment 15. Where a second crossing B is relatively close to the crossing A, the apparatus for B operates at a different frequency F2 but shares the line wires 4, 6. Island apparatus i.e. short track circuits operating at high frequency are used at the crossings to terminate the road signals after passage of a train.
Patent GB-548704-A (GB)
Title: Printing of textile fabrics
IPC: D06P1/44
Filed: 1941-04-19
Abstract: 548,704. Synthetic resin emulsions. DOUGLAS. G. T., HILL, A., TODD, W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 19, 1941, No. 3758. [Class 1 (i)] [Also in Group IV] Textile fabrics are printed with a pigmented emulsion of the water-in-oil' type, the outer phase being a volatile organic liquid substantially insoluble in water and the binder being derived from a water-soluble non-resinous ureaformaldehyde condensate together with a plasticizer, and the printed fabric is heated, e.g. at 125- 150‹C. to volatilise the water and the organic liquid and to harden the condensate.. Various methods of incorporating the several ingredients of the emulsions are specified. Specified pigments are azo pigments and lakes, metal salts of nitroso- #-naphthol; phthalocyanines, water insoluble vat dyes and inorganic pigments such as iron oxides, chrome yellows, titanium dioxide or lithopone. Specified volatile organic liquids are toluene, solvent naphtha and white spirit. Specified water-soluble condensation products are mono- and di-methylolureas and their dimethyl, diethyl and di-isopropyl ethers (cf. Specifications 522,643 and 522,644 [both in Group IV]). Specified plastioizers are glyceryl phthalate resins modified by soya bean oil, dehydrated castor oil or linseed-tung oil. Emulsifying agents or stabilizers, such as barium oleate, calcium or aluminium stearate, lanoline, bentonite or calcium or barium hydroxide, may be incorporated and finelydivided materials such as zinc oxide or calcium, strontium or barium carbonates may also be added to reduce the penetration of the emulsion into the yarns. In examples, (1) a cotton fabric is printed with water-in-oil emulsion made by adding an aqueous paste containing "Monolite" (Registered Trade Mark) fast scarlet RN and thereafter water and xylene to an emulsion made by adding an aqueous solution of the dimethyl ether of dimethylolurea to a solution in xylene of a soya bean oil-modified or dehydrated castor oil-modified, gylceryl phthalate resin and passing the whole through a homogenizer; (2) an emulsion suitable for use in printing is obtained by adding an aqueous paste containing the dyestuff 3:3<SP>1</SP>-dichlorobenzidine acetoacetanilide (2 mols.) and thereafter xylene and chalk to an emulsion made by adding an aqueous solution of the dimethyl ether of dimethylolurea to a solution in xylene of a linseedtung oil-modified glyceryl phthalate resin and passing the whole through a homogenizer; (3) a similar emulsion is obtained by adding successively xylene, an aqueous paste containing chlorinated copper phthalocyanine, more xylene, chalk and more xylene to a mixture made by adding an aqueous solution of dimethylolurea to a linseed-tung oil-modified glyceryl phthalate resin and passing the whole through a homogenizer. Specifications 523,090, [Group IV], and 544,157 also are referred to.
Patent GB-844188-A (GB)
Title: Improvements in or relating to pressure vessels for nuclear reactors
Inventor: HICKS RAYMOND
IPC: G21C13/087
Filed: 1958-02-05
Abstract: 844,188. Nuclear reactors. GENERAL ELECTRIC CO. Ltd., and SIMON-CARVES Ltd. Jan. 29, 1959 [Feb. 5, 1958], No. 3770/58. Class 39(4). A pressure vessel for a heterogeneous reactor comprises a barrel-shaped middle part 12 and curved end caps 13, 14, continuous at the joint lines. The parts of the vessel may be generated by arcs of circles, ellipses, or other curves.
Patent GB-809294-A (GB)
Title: Improvements in or relating to liquid-ring pumps
IPC: F04C7/00
Filed: 1956-02-07
Abstract: 809,294. Liquid-ring pumps. SIEMENSSCHUCKERTWERKE A.G. Feb. 7, 1956 [Feb. 8, 1955], No. 3803/56. Class 110 (1). In a liquid-ring pump of the kind comprising a control disc mounted in the pump casing and facing a flat end face of the pump impeller, the control disc having slots which can register with the impeller passages to afford connections for the transfer of fluid, means are provided for introducing sealing liquid at a pressure higher than the pump discharge pressure into the clearance space between the control disc and the impeller, the means comprising a duct in the control disc spaced away from, in the direction of rotation of the impeller, a slot which serves to transfer fluid from the impeller passages, the duct being disposed adjacent the impeller hub, and liquid being conveyed through the duct into a distributer groove which is open towards the clearance space. The liquid-ring pump shown comprises an impeller 10 rotating adjacent a disc 9 having a suction slot 8 and a discharge slot 11. The impeller 10 is mounted eccentrically of the pump casing (not shown) so that the outer ends (not shown) of the impeller vanes impart rotary motion to a ring of liquid in the casing. Liquid is extracted from the liquid ring through a groove 12a situated at a point where the pressure is greater than the discharge pressure, and conveyed to concentric annular grooves 13, 14 to seal the clearance space between the impeller 10 and the disc 9. Liquid from the inner groove 13 is led through a duct 15 in the impeller 10 to lubricate the shaft bearing. Make-up liquid is fed automatically through an aperture 17 to a low-pressure zone in the liquid ring and may be supplied from a separator connected to the pump discharge pipe. In a modification, the impeller is of conventional unshrouded form and the outer groove 14 is omitted.
Patent GB-505057-A (GB)
Title: Improvements in or relating to television or telecinema transmitters
IPC: H04N5/14
Filed: 1938-02-07
Abstract: 505,057. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Feb. 7, 1938, No. 3811. Convention date, Feb. 8, 1937. [Class 40 (iii)] A periodic voltage is so applied to an automatic regulator of the amplifi. cation of image signals relatively to synchronizing signals that the regulator is maintained inoperative until near the end of each scanning line and thus greater amplification of most of the picture signals is obtained without prejudicing the separation of the synchronizing signals at the receiver. The periodic voltage is obtained from the synchronizing signal and is supplemented by a fixed voltage 9. The regulator feeds back periodically a biassing voltage to one or more valves of the amplifier of the image signals. This biassing voltage is derived from current passing through a resistance 8 from a rectifier 6 in proportion to the signals in a resistance 11 during the period when the periodic voltage 5 is sufficiently high. The biassing voltage is smoothed by a condenser 7 across the resistance 8. Specification 407,322 is referred to.
Patent GB-1286301-A (GB)
Title: Improvements in or relating to electric circuits
Inventor: ROE PETER ARTHUR
IPC: G21C9/02
Filed: 1969-01-23
Abstract: 1286301 Alarm circuit ASSOCIATED ELECTRICAL INDUSTRIES Ltd 23 April 1970 [23 Jan 1969] 3870/69 Heading G4N An electric circuit for use with an alarm system detects when a signal exceeds a predetermined value or when the rate of change of signal is excessive. The difference between the signal and the predetermined value is amplified by a chopper amplifier, part of the output being fed back to provide the chopping signal. The input to the alarm circuit at 1, may be a thermocouple in a nuclear reactor. The input is combined with a fixed voltage from 2 and fed to a chopper circuit 3 which feeds amplifier 4. The signal from amplifier 4-3 rectified at 6 and fed to sampling circuit 9 in which a sample value of the input is stored and compared with the current input to indicate changes in the input. The difference signal between the stored value of the input and the current input is fed from differential amplifier 15 to the chopper circuit 3. Other outputs are supplied via differential amplifiers 16 and 17, and OR gate 21, to alarms 22. Thus if the rate of change of input exceeds a certain predetermined value, set by the sample interval and the amplitude of pulses from pulse generator 11, an alarm signal is produced. If the input exceeds a certain preset value produced by voltage divider 2, which gives a voltage opposing the signal voltage, an alarm signal is again produced via rectifier 6 differential amplifier 10 and OR gates 21. If the predetermined value is exceeded a signal is passed via power amplifier 7 and rectifier 8 to activate an input to control the unwanted condition. The sampling circuit 9 comprises field effect transistor 23 whose control electrode is fed from the sample pulse generator. The input is used to charge up capacitor 24 during the sample period, the charge being retained on capacitor 24 when transistor 23 is switched off. The stored potential carried on capacitor 24 together with the output of oscillator 11 is compared with the input via field effect transistors 26 and 27, transistors 32 and 33 and differential amplifiers 15, 16 and 17. If the output of oscillator 11 is biased by the output of rectifier 6 so that no change in polarity occurs, the amplifier 15 does not have a square wave output and the input signal 3 not chopped. This causes an alarm condition to be registered i.e. if the input changes by a value greater than the amplitude of the square wave from oscillator 11 between sample periods an alarm condition is produced.
Patent GB-1500321-A (GB)
Title: Clamping device
IPC: G01B5/00
Filed: 1975-01-29
Abstract: 1500321 Clamps S K F INDUSTRIAL TRADING & DEVELOPMENT CO BV 29 Jan 1975 [30 Jan 1974] 3875/75 Headings E2A and E2B A workpiece 1 is held on one side by discs 4 at the ends of elements 5 and on the other by bracket 10 suspended on spring parallelogram 9 and urged against the workpiece I by spring 11. The elements 5 can be moved towards and away from each other equally by means of a screw mechanism.
Patent GB-118561-A (GB)
Title: Improvements relating to Vapour Oil-lamp Burners.
Inventor: BUTLER HOWARD BUSVINE
IPC: F23D3/00
Filed: 1918-03-08
Abstract: 118,561. Butler, H. B., and Horton, W. March 8, 1918. Addition to 106,364. Wick burners, solid - flame; making burners. - Burners of the type described in the parent Specification, comprising a hollow body having an elongated mouth curved upwards towards each end to form horns, are formed from a single length of tubing. In one method, a beading b and neck c are first formed in a length of tubing a, Fig. 3; the sides are then slotted, cut away, and rounded off to form the gaps e; and, finally, the mouth of the body is elcngated, the edges f turned in, and the horns g raised or bent inwards as described in the parent Specification. The lower end of the burner may be secured by the beading b or by an out-turned flange to a disk forming a burner base. In a modification, a tube is spun as at a', Fig. 11, and the burner is then completed as shown in Figs. 15 to 18 of the parent Specification.
Patent GB-166863-A (GB)
Title: Improvements in or relating to radiators
IPC: F28F3/08
Filed: 1919-09-18
Abstract: 166,863. Alexander, A. E., (Betan Co.). Sept. 18, 1919. Motor-car and like radiators of the type comprising upper and lower headers 1, 2 connected by a number of vertical columns each consisting of a series of superposed radiation units 4 with aligned communication ports. In order to press the units 4 into engagement with each other or to permit the ready removal of a unit, one of the end units of each column is connected to the adjacent header by means of an adjustable tubular nipple 5 provided with a jamb nut 6. The radiation units are preferably of the construction described in Specification 151,814.
Patent GB-395635-A (GB)
Title: Improvements in and relating to the purification of hydrocarbon motor spirit
IPC: C10G17/06
Filed: 1933-02-11
Abstract: Hydrocarbon motor spirit, especially that produced by cracking or low-temperature carbonization, is purified and stabilized by treatment successively with alkali, sulphuric acid, and alkali, in which: (1) the first alkali treatment is effected before prolonged storage, preferably before or during condensation; (2) such a proportion of about 95-96 per cent acid is used as to remove only the basic and the more unsaturated compounds such as diolefines; (3) the acid-treated spirit is allowed to stand for a prolonged time before neutralization and the second alkali treatment is carried out for a prolonged time.  Fractional distillation may follow.  The first alkali treatment may be in two stages, e.g. first by flowing the spirit continuously upwards through an aqueous suspension of lime to remove sulphur and easily decomposed compounds, and then circulating with caustic soda through a pump to remove phenols.  The acid wash may also be in two stages, e.g. first by agitation for 10 min. with 1-1,5 per cent by vol. of acid tar from the second stage followed by settling for 30 min. and then with 0,5 per cent by vol. of 95-96 per cent acid for 30-45 min. followed by settling for 3-3,5 hr. The acid tar produced is preserved from oxidation in a closed vessel until required.  The neutralization is preferably effected by soda ash solution.
Patent GB-537352-A (GB)
Title: Improvements in and relating to television transmitters
IPC: G03B31/02
Filed: 1940-03-06
Abstract: 537,352. Television transmitters. LOEWE RADIO CO., Ltd. March 6, 1940, No. 4237. Convention date, March 9, 1939. [Class 40 (iii)] [Also in Group XX] In television transmission from picture films, automatic means are.provided for compensating for variations in the height of the image in such a manner that the heights of the scanning field and the image scanned remain in substantially constant relationship. In one arrangement, Fig. 1, the length of a loop of film 31 between sprockets 6, 8 is measured by means of a roller 7 associated with a spring controlled lever 13. This lever is pivoted at 14 and connected by a pin and slot joint 16 to the objective 4 and by a link 19, a lever 20, and a pin and slot joint to the support 23 of the gate 2. By these means, the projected image is kept in focus while the magnification is varied to compensate for variations in length of loop 31 of film and therefore of height of picture thereon, so that the image scanned by the scanner 1 is maintained constant in height. In a modification, Fig. 2 (not shown) the lever 13 adjusts a potentiometer in the circuit of a saw-tooth generator controlling the deflection coils of a cathode-ray tube scanning device. In still another modification, Fig. 3, variations in length of the film in the gate between two apertures 32, 33 are detected by the time at which perforations 34 in the film pass these apertures. Light from a lamp 38 is directed by optical devices 39, 40, 41, 42, 43 through the apertures and the perforations on to photo-electric cells 44, 45 connected to a thermionic valve circuit controlling a contact member 50 by means of coils 48, 49. If the cells are not lighted at the same time the member 50 makes contact with terminal 46 or 47 whereby the scanning amplitude is increased or decreased as required. Specification 498,625 is referred to.