baber/WOPTO huggingface dataset:
Patent GB-451496-A (GB)
Title: Improvements in and relating to electrical communication systems
IPC: H04B3/20
Filed: 1935-01-02
Abstract: 451,496. Two - way transmission. PADDLE, L. H., 92, Lancaster Road, West Norwood, London. Jan. 2, 1935, Nos. 134 and 413. [Class 40 (iv)] [See also Group XL] Attenuation circuits comprising one-way devices such as thermionic tubes or dry-plate rectifiers for directional control in two-way transmission are controlled by the potential developed across a resistance in the anode circuit of an anode-bend rectifier when signal currents are applied to the grid. In the arrangement shown in Fig. 2, the difference of potential between points 13, 15 connected to opposite sides of resistance R is normally zero or very small but is substantial when speech currents are applied to circuit 16, the effect being increased by feeding back the anode currents through a condenser C1 and dry-plate rectifier M to decrease the negative bias on the grid. As shown, two rectifiers V2, V3 are associated with a common anode battery B2 and the three control points 13, 15, 14 are connected to rectifier-networks in the two transmission paths, Fig. 3, the attenuation of one network being increased and the other diminished when speech currents are applied at 16 or 17. In another arrangement, Fig. 4, a diode valve V4 normally blocks the path 22-23 but is rendered conducting by the change of potential across resistance 24 when control currents are applied to rectifier V5. The valve V4 may be replaced by a three-electrode valve with an additional control on the grid from the other path. In another arrangement, Fig. 6 (not shown), a three-electrode valve amplifier in the transmission path has its anode voltage controlled by a resistance also in the anode circuit of the rectifier. In the quiescent carrier system shown in Fig. 7, amplifier V7 between the oscillator and modulator is rendered operative by rectifier V5 fed in parallel with the modulator, and is disabled by output from the demodulator. In the system shown in Fig. 9, a control circuit similar to that in Fig. 2, but with two tappings to battery B1 and with filters 37, 38, controls attenuators arranged one in the transmitting path between the oscillator and modulator and the other in the input path to control rectifier V2. A similar arrangement may be applied to an antiside-tone loud-speaking telephone set.
Patent GB-345367-A (GB)
Title: Improvements in or relating to vehicles fitted with lifting appliances
IPC: B66C23/36
Filed: 1930-01-02
Abstract: 345,367. Load-handling appliances; jib cranes; endless-track vehicles. CORFIELD, A. H., 1, Stores Depot, Royal Air Force, Kidbrooke, London, and SUTTON, G. E. B., Cie. Crane, Rue de Verdun, La Courneuve, Paris. Jan. 2, 1930, No. 135. [Classes 78 (iii) and 78 (iv).] A lifting-appliance comprises a lever fulcrummed on a vehicle chassis, a turntable on the free end of the lever, a load carrier on the turntable and means for maintaining the turntable horizontal. As used for lifting bombs into position under aeroplanes, the chassis 1 having wheels or endless tracks 26 has the lifting lever 37 pivoted thereto at its rear end 42, its front end being fitted with a socket 39 mounted on a pivot 38 and provided with a parallel motion linkage 41. A hydraulic operating ram 44, driven by a pump, not shown, is pivoted to the lever near its rear end. A pedestal 47, Fig. 6, fits into the socket 39 and carries a slide 48 diametrically adjustable by means of screw gearing 52. The slide has an -uprising boss 58 centering a turntable 59 having lateral brackets 61 carrying a spindle 62 on which is mounted a crutch frame 63 for supporting the bomb. The crutch frame is normally kept in position by springs 65 and is also fitted with a dash-pot. A lifting arm 80 is mounted on the lifting lever and carries a pulley 79 at its free end over which a hoisting rope 76 passes from a worm-gearing operated winch 82 on the chassis to a hook 77 for attachment to the bomb so that it can be lifted from the ground into the crutch frame. When hoisting the bomb a stop 83 on the rope abuts against a plate 84 on the lifting arm and the arm is then luffed until the bomb is vertically over the crutch frame, a slotted arm 86 engaging a pin on the lifting arm controlling the movement of the lifting arm. The endless tracks 26, Figs. 8 and 11, have central V-shaped ribs 27 engaging grooves in the jockey pulleys 13 and main pulley 7, the pulleys being mounted on beams 10 having a slide connection 15 with guideways 9 in brackets 4 pivotally mounted on the chassis and connected to steering mechanism 30 and a handle 30<*>. The jockey pulley spindles engage slots 19 in the beams and are fitted with screw adjusting devices 20.
Patent GB-667250-A (GB)
Title: Apparatus for cutting glass
IPC: C03B33/12
Filed: 1950-01-03
Abstract: 667,250. Cutting glass. DIXON, M. G. (Red Devil Tools). Jan. 3, 1950, No. 148/50. Class 56. In a glass-cutting apparatus comprising a horizontal support 13 on which a sheet of glass 14 rests on edge, a vertical support 11 and a clamp 17 for clamping the sheet to the vertical support, the glass is scored vertically adjacent the edge of the support 11 and a breaker bar 28 is moved into contact with the sheet adjacent the line of score in such a way that one end of the breaker bar contacts the glass in advance of the other end. Several means for accomplishing this are described; in Fig. 5 for example each end of the bar is adjustably secured to an arm 29 having an aperture 40 in which a pin 38 projecting from a manually rotatable vertical shaft 35 engages, the adjustment afforded by the slot 42 and bolt 41 determining the lag between the time of contact of one end of the bar with the glass and that of the other end. In other forms eccentrics or eccentrically mounted pins or pins and cam slots are used. The pressure edge of the breaking bar may be inclined at a slight angle, e.g. about 5‹ to the plane of the glass.
Patent GB-486456-A (GB)
Title: Improvements in or relating to emergency-stop switches for use in electrically-driven power installations
IPC: H01H21/22
Filed: 1937-01-04
Abstract: 486,456. Press - button retractive switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F.. and HARRISON, B. G. Jan. 4, 1937, No. 159. [Class 38 (v)] A switch for opening a circuit in an emergency, has moving contacts a<2> which may be operated to break circuit by a push-piece a<3> and has provision, accessible from outside its case b, for locking the switch in its '' off " position. The push-piece a<3> passes through a cover b<1> of the case b and has mounted on it by a pin a4, movable contacts a<2> normally engaging fixed contacts a<1>. To operate the switch, a cap c is manually depressed. about a pivot c<1>and against a spring c<2>, and, engaging the pushpiece a<3>, depresses it against a spring a<5> to open the contacts. If desired it may be locked in the open position by a padlock passed through a hole d<3> in a stud d a head d<1> of which is a stop for cap c in the normally closed position.
Patent GB-1520061-A (GB)
Title: Device for detecting strain
IPC: G01B7/16
Filed: 1976-01-05
Abstract: 1520061 Strain gauge mounting KYOWA ELECTRONIC INSTRUMENTS CO Ltd 5 Jan 1976 [22 Feb 1975] 00176/76 Heading GIN [Also in Division H1] A strain detecting device has a metal casing 1, with a cable inlet 2, inside which are arranged a terminal block 9 and a resilient pressure member 6 of neoprene on which a strain gauge element 7 is mounted, which element is connected to the cable 3 via the terminal block. A gasket 4 is adhered to a base surface of the casing using raised flange portions 16', 17' as fixing guides. The outer surface of the strain gauge element projects below the level of the.surface of the gasket by about 0À5 mm. The remainder of the interior of the casing is filled with silicone rubber 5' or other relatively soft synthetic rubber material for dust- and water-proofing. In use the underside of the strain gauge element is adhered to an object in which strain is to be measured by means of an adhesive and the casing is secured, by nuts and bolts or by binding wires or a belt, to the object, so as to compress the member 6 and the gasket 4 so the strain gauge element is pressed against the object. Applications are to measuring the weight of a vehicle or of a goods wagon by mounting the device on the side of a support rail.
Patent GB-614002-A (GB)
Title: Improvements in and relating to a process for the desulphation of coagulation baths for the spinning of viscose
IPC: C01B17/90
Filed: 1946-01-04
Abstract: Viscose spinning baths are subjected to vaporization at low temperature under high vacuum to effect crystallization of the sodium sulphate, and the vapours so produced are absorbed in sulphuric acid of desired concentration conducted in circulation. The heat liberated is absorbed in the sulphuric acid and utilized by passage of the acid through a heat exchanger.  The bath to be cooled is fed at 11, Fig. 2, to a crystallization apparatus 12 operating under high vacuum, the extraction of the salt and bath being effected at 13.  A pipe 14 connects the crystallizer with a sulphuric acid washing-apparatus 15 through which the acid p  circulates, absorbing both the vapours produced <PICT:0614002/IV(a)/1> by the evaporation of the bath and the heat liberated during the crystallization.  Thus, the vacuum-producing ejector 18 conveys only those vapours incapable of condensation.  Steam is supplied to the ejector at 19.  The acid after absorbing the vapours &c. is passed to a heat exchanger 20, other liquids in the circulation system 24 being heated.  The bath may be cooled prior to its final cooling in the system, and, if desired, the vaporization apparatus may be divided into a plurality of stages, each working at a higher vacuum.
Patent GB-639993-A (GB)
Title: Improvements in electric discharge switches
IPC: H05B41/08
Filed: 1947-01-06
Abstract: 639,993. Thermal switches. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE-PAZ & SILVA. Jan. 6, 1947, No. 463. Convention date, Aug. 27, 1945. [Class 38 (v)] [Also in Group XL (a)] A thermal switch for starting a discharge lamp comprises a thermionic electrode 8, a non-thermionic electrode 7, a contact 10 and a bimetallic member 12, the electrode 7 and contact 10 being connected across the main in series with the bimetallic switch 10, 12 and electrodes of the lamp to be started. When the mains are switched on, a glow discharge starts between electrodes 7, 8, which latter is heated by the discharge so that it emits electrons and this changes the discharge to a rectified arc discharge. The bimetallic strip 12 is heated by the arc and after a time opens the contact between 10, 11, thus starting the lamp.
Patent GB-569810-A (GB)
Title: Improvements in electric welding
IPC: B23K25/00
Filed: 1944-01-11
Abstract: 569,810. Repairing rails by welding. LINDE AIR PRODUCTS CO. Jan. 11, 1944, No. 490. Convention date, Jan. 12, 1943. [Classes 83 (ii) and 83 (iv)] Uniting by fusion. In a method of depositing molten metal from an electrode on to a metallic body by electric welding in which the end of a bare electrode is inserted into a layer of comminuted mineral welding composition, electrically non-conductive when solid but conductive when molten, placed on the body, the electrode is in the form of a strip or ribbon of considerably greater width than thickness and is given an oscillating or rocking motion to move its opposite side edges alternately towards and away from the body so that molten metal therefrom unites with molten metal of the body while the point of discharge of the molten metal from the electrode travels to and fro' across the width of the electrode. A large surface area is thus coated. A groove in a body 10 may thus be coated as at 17 or a worn railway rail provided with an armouring layer. The powdered welding composition 11, which may be of the kind described in Specification 438,855, [Group II], is placed on the part 10 between dams 12, 13, either over the entire area or progressively as welding proceeds and the electrode 14 which may be attached by welding to a rod 15 inserted into a holder, is buried into the composition at an angle of about 45 degrees to the surface of the body, the electrode and work being connected to the terminals of the electric supply which may be alternating or direct. The operation may be started by inserting a wad of steel wool between the end of the electrode and the work. The electrode is then rocked about its central longitudinal axis as shown in Fig. 2, the electric discharge taking place across the gap between the electrode and the work at the point where the gap is shortest so that successive portions of the welding composition and of the electrode are melted at that point and which reciprocates from edge to edge of the electrode along its width. The electrode need not be moved along the line of weld but just allowed to melt back along its length until the desired deposit has been produced. The fused layer of slag 16 which is afterwards removed is surmounted by the unfused composition. In order to maintain the proper distances between the end of the electrode and the work a voltmeter may be connected across the electrode and work and the position of the electrode adjusted to maintain the voltage and thus the rate of fusion constant by tilting it about the unfused welding composition as a fulcrum. The voltmeter may be replaced by a voltage or current responsive audible means such as a buzzer or bell to indicate fluctuations in welding voltage and current. The electrode may be arranged at' an obtuse angle to the work or may be arranged vertically. Specification 433,723 also is referred to.
Patent GB-582280-A (GB)
Title: Improvements in or relating to fuel containers
IPC: B64D37/06
Filed: 1943-01-11
Abstract: Fuel containers, particularly those of the self-sealing type, have inner liners comprising a high molecular weight linear polyester-amide.  The polyester-amide may be obtained by the reaction of hexamethylenediammonium adipic acid and 2 : 2-dimethyl propylene glycol, or with hydroxyacetic acid, or by the reaction of adipic acid with mono-ethanolamine and ethylene glycol, or hexamethylene-diammonium sebacate with sebacic acid and ethylene glycol, or decamethylene-diammonium sebacate with sebacic acid and butylene glycol, or by reacting amino alcohols and dicarboxylic acids with or without glycols, diamines, amino acids and hydroxy acids; diisocyanates or diisothiothiocyanates, such as hexamethylene diisocyanate may be included.  One polyester amide composition is obtained from 721 parts of adipic acid, 315 of ethylene glycol, 174 of hexamethylene diammonium adipate and 125 of water heated for 32 hours at 200 DEG  C. and 760 mms. pressure in a stirred reactor, water being removed during the reaction through a condenser system. 94 Parts of the product are melted at 140 DEG  C. in a jacketed, heavy duty mixer and 6 parts of hexamethylene diisocyanate added over 15 to 20 minutes, the temperature raised to 160 DEG  C. and mixing continued for a further 15 minutes.  48 Parts of the product are compounded on rubber rolls with 39.5 parts of lithopone, 8.2 parts of p-tert.-butyl-phenolformaldehyde resin and 2.3 parts of dibutylammonium oleate, the whole being then passed through calender rolls at 120 DEG  C. to form a sheet 25 mils. thick.  The polyester-amides may be compounded during or after manufacture with fillers, pigments, waxes, resins, stabilizers, anti-sticking agents, &c. of which examples are given.
Patent GB-858120-A (GB)
Title: Improvements in or relating to apparatus for deriving electrical signals from a medium having optically dense and clear areas
IPC: G01N21/59
Filed: 1957-01-07
Abstract: 858,120. Photo-electric sensing. EASTMAN KODAK CO. Jan. 7, 1957 [Jan. 6, 1956], No. 531/57. Class 40(3). [Also in Group XIX] A device for sensing information presented in the form of optically relatively clear and relatively dense areas on a film, card or like medium 10 comprises a double sided photo-conductive cell, or plurality of such cells, 15 corresponding to the area or areas, to be sensed. Light from a lamp 36 is directed through an area on the medium to the appropriate cell by mirrors 38, 40 and lenses 37, 41. A second light 35 is positioned on the other side of the cells and illuminates them through a filter 45. This filter is arranged so that, when a cell is illuminated solely through it the cell resistance is approximately mid-way between the values taken up when it is illuminated solely through clear and dense areas of the medium respectively. Interrupting disc arrangements mounted rigidly on a common shaft are positioned on each side of the cells. On the side from which light passes from the medium the disc is opaque with a radial slot 55. On the opposite side of the cell the disc is transparent except for an opaque stripe 52 which passes over the cells at the same time as the slot 55. The discs are driven by a motor 32 which is coupled to move the record step by step for row by row scanning. For this purpose the media, which as shown are pieces of photographic film having rows of areas to be sensed 12 alongside photocopies of documents 10, are mounted over apertures 31 of a conveyer 30. The conveyer is driven through a geneva movement 33 and drum 34. The motor 32 also applies a source of potential to the (or each) cell for a period commencing before, and finishing just after, the passage of stripe 52 and slot 55 across it. The cell therefore shows an increase or a decrease in resistance from the datum level set by the light from lamp 35 for a period within its applied potential pulse dependant on whether the area to be sensed is clear or dense. The change in resistance is transformed into a voltage change at a suitable output and may be used as required. A single lamp may be used to provide illumination on both paths to the photo-cell by the use of suitable mirrors, thus preventing uneven variations of illumination (Fig. 2, not shown).
Patent GB-1536991-A (GB)
Title: Multiple clutch with plate-separating apparatus
IPC: F16D13/69
Filed: 1977-01-07
Abstract: 1536991 Multi-plate clutches MOTORENUND TURBINEN-UNION FRIEDRICHSHAFEN GmbH 7 Jan 1977 [16 Jan 1976] 00560/77 Heading F2C A multi-plate clutch is equipped with flyweights for engaging the clutch plates and urging them apart when the clutch is disengaged. In the clutch shown, balls 19 captive in radially inner bores 20 in driving member 11 are effective to urge inner plates 12 apart, and further balls 19 captive in radially outer bores 21 in outer plates 14 are effective to urge these plates apart. In a modification the plates are urged apart by sets of bi-conical discs threaded on shafts extending through clearance holes in the plates Figs. 5, 6 (not shown).
Patent GB-1326713-A (GB)
Title: Polymerisation of vinyl and vinylidene compounds
IPC: C08F214/06
Filed: 1971-01-06
Abstract: 1326713 Polymerization process BADISCHE ANILIN- & SODA-FABRIK AG 6 Jan 1971 [7 Jan 1970] 575/71 Heading C3P In the homo-polymerization of vinyl chloride, vinylidene chloride or vinyl acetate (M) or copolymerization of two or all of these in bulk, suspension or emulsion there is added at times and in amounts to prevent excessive heat generation a copolymerizable monomer (R) containing at least one carbon-carbon, carbonoxygen or carbon-nitrogen multiple or aromatic bond conjugated with the polymerizable bond in which the copolymerization parameter r R  is not less than 1, r M  is less than one and r R  : r M  is more than 20 : 1 in a total amount of not more than 0À1% based on monomers. The copolymerizable monomer (R) is preferably added in solution, e.g. in methanol, and the addition is repeated as necessary to maintain the temperature below the desired maximum. In examples vinyl chloride is polymerized in suspension and there are added as regulators (1) alpha-methyl styrene, (2) isopropenyl acetylene, (3) and (5) acrylonitrile, (4) butadiene, and (6) acrolein.
Patent GB-111747-A (GB)
Title: Improvements in or relating to Hydro-aeroplanes.
Inventor: WADE HAROLD
IPC: B64C35/00
Filed: 1917-01-11
Abstract: 111,747. Wade. H., (Wilkinson, E.). Jan. 11, 1917. Floats for aerial machines.-Relates to hydro-aeroplanes having a main central float, as B, and two smaller side floats D, D<1> secured abreast the rear portion of the main float. According to the invention, the side floats D, D<1> have their bottoms d<1>, Fig. 6, flared outwards, as shown. The floats are of stream-line form, tapering forward and aft and with curved tops. The central float has a V-shaped bottom and a step which is vented through vertical tubes B<1>. The floats may be made of multiply wood with interposed layers of cloth and glue. The huils are supported by diagonal bracing and stanchions and are subdivided into watertight compartments. The central float has a longitudinal bulkhead also. The bottoms of the side floats are warped upwards towards the front. These floats are also disposed nearer to the centre of the wings than to the tips thereof so as to engage the water before the wing tips. The rear inboard edges of the side floats are made substantially vertical, as indicated by dotted lines; this shape prevents the flow of water over the decks of the float when the machine is turning on the water.
Patent GB-1502521-A (GB)
Title: Device for measuring the mass of particles of an aerosol per unit volume
IPC: G01N9/24
Filed: 1976-01-08
Abstract: 1502521 Measuring concentration of aerosol particles SOC NATIONALE DES PETROLES D'AQUITAINE 8 Jan 1976 [15 Jan 1975] 00641/76 Heading G1G [Also in Division H1] A device for measuring the mass of particles of an aerosol per unit volume comprises a vibratable body 3 having a planar surface 2 partially covered by a planar particle receiving electrode 4, a point electrode 1 having an axis perpendicular to the  plane of the body 3 and which is separated from the electrode 4 by 3 to 15 mm, a source 5 of high voltage d.c. having its positive terminal connected to the electrode 1, and means 6 for measuring the resonant frequency of the body 3, the body 3 and the point electrode 1 being arranged in a conduit 8 coaxial with the electrode 1, the conduit having an air inlet nozzle 9 adjacent point 7 of electrode 1 and an outlet 10 opposite said point. It is stated that the connection of the electrode 1 to the positive side of the high voltage d.c. source creates sufficient "electrical wind" to dispense with the need for an air pump and results in less deterioration of the point electrode. The source 5 preferably has means for maintaining the current intensity constant and a resistor (16) is preferably arranged between the source 5 and the electrode 1, Fig. 5 (not shown). As particularly described, the body 3 is constituted by a Piezo-electric quartz blade and the electrode 1 is formed of tungsten steel or stainless steel, the end preferably being formed of tungsten. The measuring means 6 is in the form of an oscillator. As shown in Fig. 7, which shows a plan view of the plane X-X of the device shown in Fig. 6, two chambers 86A and 86B are provided, chamber 86A constituting a measuring cell, and chamber 86B consituting a reference cell and thus having the nozzle 9 and outlet 10 thereof closed. The vibratable body 3A, 3B in each chamber is circular and each has a pair of arcuate electrodes 26A, 27A, 26B, 27B attached thereto. These electrodes are connected by leads 24A, 25A, 24B, 25B to a pair of oscillators 6A and 6B which are in turn connected to a mixer 28 where output is connected to a frequency meter 29.
Patent GB-1028201-A (GB)
Title: A new salt of n-methylglucamine and a process for its preparation
IPC: C07C65/10
Filed: 1963-01-07
Abstract: The invention comprises N-methylglucammonium salicylate, pharmaceutical preparations containing it, and its preparation by reacting (a) the parent base or its carbonate or bicarbonate with the parent acid or (b) an acid addition salt of the parent base with a metal salicylate.  The compound of the invention is an analgesic and may be administered enterally or parenterally in the form of pharmaceutical preparations (e.g. tablets, capsules, granules, suppositories and solutions) containing it together with a carrier.