baber/WOPTO huggingface dataset:
Patent GB-532798-A (GB)
Title: Improvements relating to the electrical exploration of the sub-soil
IPC: G01V3/04
Filed: 1939-02-21
Abstract: 532,798. Prospecting for minerals. COMPAGNIE GENERALE DE GEOPHYSIQUE. Feb. 21, 1939, No. 5819. Convention date, July 13, 1938. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 22, 1939]. [Class 37] Exploration of the sub-soil by potential difference measurements is effected by passing a unidirectional current through the earth and correcting the measured potential in respect of natural earth potentials by the simultaneous and separate measurement of the correcting potential between two points that are equally affected by the applied current. The principle of the invention is illustrated in Fig. 1. The applied current from a continuous-current generator 76 is fed into the earth by electrodes I1, I2, and further electrodes 78 ... 80 are located in line with the electrodes I1, I 2. Electrodes 78, 79 are symmetrically located on opposite sides of one of the energizing electrodes so that applied currents do not set up a potential difference on instrument 74. Further, if electrodes 78, 80 are symmetrically located with respect to electrode 79, the natural earth potentials in these circuits will be equalized. As the energizing electrode I<2> is moved elimination of the natural earth potentials is thus effected and a corrected reading obtained by subtracting the indication of instrument 74 from that of instrument 75. Similar elimination can be effected by moving the energizing electrode I1, A circuit diagram of apparatus is shown in Fig. 2. Calibrated potentiometers 34, 40 and zero instruments 33, 36a are provided for measuring and injecting a compensating voltage for the natural earth potentials. Instead of employing a common electrode 79, two separate sets of electrodes can be used. One of the energizing electrodes may be adapted to be lowered down a bore hole.
Patent GB-773886-A (GB)
Title: Improvements relating to methods of and means for the purification of molten glass
IPC: C03B5/20
Filed: 1954-02-27
Abstract: 773,886. Glass manufacture. GELL, P A. M. Feb. 28. 1955 [Feb. 27, 1954], No. 5828/54. Class 56 In a glass-melting furnace, "stones" are separated from the glass as it flows, e.g. towards a feeder portion 11 of a forehearth 10, by an inclined member 18 which deflects the upper part of the glass, which contains the "stones", upwardly, the "stones" being discharged through an outlet 28. The member 18, which is preferably permeable rests against or is attached to the skimmer block 15, and is carried by spaced rods 24 upstanding from the bottom 12 of the forehearth. It may be a perforated plate, or mesh, of non-metallic refractory material, but is preferably a mesh of molybdenum with square apertures of between one-sixteenth and one-quarter of an inch. one-eighth being the preferred size. The rods 24 are likewise of molybdenum and the mesh 18 is bound with molybdenum wire to transverse rods 22, 27, the latter being bound to a transverse member 25 connecting the rods 24. The slope of the mesh 18 is preferably the same as the slope of the part 13 of the forehearth. The inclined screen 18 may be disposed elsewhere in the glass-melting furnace, and it may be extended to the bottom of the furnace, openings for the flow of the lower portion of the glass being provided.
Patent GB-800363-A (GB)
Title: Over-voltage protective device
Inventor: THOREN BERTIL
IPC: H01T1/04
Filed: 1957-02-21
Abstract: 800,363. Lightning arresters. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 21, 1957, No. 5848/57. Class 38 (4). An over voltage protective device, particularly for a battery of series capacitors in which the arc is forced to move along a closed path, and in which the spark gap is protected from the arc after ignition, comprises a series of circular electrode discs 14-21, Fig. 1, provided with electrodes 25-30, mounted on an insulated tube 52 together with cylindrical coils 44-47 and shaped insulators 48, 49, Fig. 2. The electrode discs are provided with radial insulated slots 57 to restrict eddy currents, and voltage equalizing resistors 58, 59 are connected between the electrodes. The assembly is clamped by an iron bolt and nut 53, 56, Fig. 1. The ends of coils 44-47 are connected to discs 14-21, alternate coils being arranged in the opposite sense so that the radial components of the magnetic fields are additive whereas the axial components are neutralized. Metallic or insulated rings 43 are provided to divide the arc and increase the cooling. On the spark gaps discharging, the arcs are driven round the circumference of insulators 48, 49 by the magnetic field from coils 44-47 until the energy is dissipated. Triggering electrodes may be provided to stabilize the striking voltage. The device may be used on A.C. or D.C., and in the former case, some of the coils may be short-circuited on themselves.
Patent GB-400485-A (GB)
Title: Apparatus for table game
IPC: A63F5/04
Filed: 1933-02-27
Abstract: 400,485. Games of chance. MATHERS, H., 164, Northcote Road, Pretoria Avenue, Walthamstow, London. Feb. 27, 1933, No. 5867. [Class 132 (ii).] A disc 5 pivoted at 4 pivotally carries a number of rings 7 of magnetic material. The disc is spun by a knob 10 and the rings are attracted by a permanent magnet 6 when the speed of rotation becomes low enough. The disc has numbers inscribed on it and the winning number is indicated by a pointer 9.
Patent GB-387518-A (GB)
Title: Apparatus for electrotherapy and for determining the chronaxi of a muscle
IPC: A61N1/36
Filed: 1932-02-27
Abstract: 387,518. Electrotherapeutical apparatus ; making physiological measurements. OPPENHEIM, G., 16, Querstrasse, Frankfort-on-Main, Germany. Feb. 27, 1932, No. 5893. Convention date, Feb. 28, 1931. [Class 81 (ii).] An apparatus for treatment of the body with currents derived from some form of record comprises a record-driving machine 1, a pickup apparatus 3, and treating electrodes 9 specially adapted for applying the modulated current to the body and connected to the pick-up, if desired, through transformer 8. An amplifier 4, rheostat 5, and ammeter 6 are also included in the circuit. Magnetized wires or sound films may be employed, but disc records are preferred. The device may be used in various connections. (1) For electric narcosis, a record is employed furnishing a Leduc current, Fig. 2, the duration of the impulses a being about one-ninth of that of the intervals b. (2) For measuring the chronaxi of a muscle, a record is employed furnishing a current, in which the duration of the impulses p1 .. p4 progressively increases, the intervals t being equal, Fig. 3. Immediately the muscle reacts, the record is stopped. The chronaxi is thus determinable, since the duration of the impulse at this point is known. (3) Unhealthy organs, for example, the heart muscle or the uterus of a woman in child-labour may be subjected to the bioelectrical current of a normal heart or womb of a normal parturient previously recorded cn the disc. (4) Reference is also made to the use of music records, for example, for the treatment of lameness. By means of the switch 10, the composite current, or the alternating current component thereof only, may be used. Inversion of the recorded oscillations may be effected by means of the amplifier.
Patent GB-159463-A (GB)
Title: Improvements in thermionic valve transmitters
IPC: H03B5/10
Filed: 1921-02-21
Abstract: 159,463. Ges. f³r Drahtlose Telegraphie. Feb. 28, 1920, [Convention date]. Thermionic oscillation generators. - In a thermionic valve transmitter, the grid potential is derived solely from a coil in the aerial between the anode coil and earth, and through which flows only the aerial current. As shown, the grid inductance 5 in the aerial circuit is made variable by means of a sliding contact 9, and is not influenced by the field of the plate inductance. This arrangement prevents distortion of the oscillations produced and allows widely differing quantities of energy to be radiated by adjustment of the grid coil 5, without altering the tuning of the aerial. Specifications 15237/15 and 15448/15 are referred to.
Patent GB-557087-A (GB)
Title: Process of vulcanizing rubber and product obtained thereby
IPC: C08K5/00
Filed: 1942-05-01
Abstract: 557,087. Thiazole derivatives. MONSANTO CHEMICAL CO. May 1, 1942, No. 5915. Convention date, April 23, 1941. [Class 2 (iii)] [Also in Group V] A vulcanization accelerator comprises the reaction product of a methylol-, dimethylol-, or methylol-thio-carbamide with a 2-(aminothio) thiazole of the general formula : <SP>R1</SP> R2 #N-S-R3 wherein R1 and R2 each denote hydrogen, an alkyl, aryl, aralkyl, or cycloaliphatic radical, with or without amino substituents and R3 the thiazole residue, either substituted or not. Examples of 2 (amino-thio) thiazoles include a number with benzo, methyl, methylbenzo, phenolbenzo, chlorbenzo, and naphtho substituents. In an example, 0.2 mol. of cyclohexylaminothiobenzothiazole and alcohol are heated with a solution of dimethylolcarbamide for 24 hours, and solvent extracts washed with caustic soda solution and water, a dark red resinous material being obtained.
Patent GB-649708-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B13/24
Filed: 1948-04-05
Abstract: 649,708. Sheathing cables. JOHNSON & PHILLIPS, Ltd., HOLLINGSWORTH, P. M., and BEST, W. B. April 5, 1948, No. 6130/47. [Class 36] [Also in Group XXII] A sheathing is applied to an electric cable core by extruding the sheath at high temperature around a protective tube surrounding the continuously moving core, the sheath being reduced to the required diameter after it has left the tube and is sufficiently cool to cause no damage to the core. The core 1 is fed through a stationary refractory tube 5 which is situated centrally of an annular ram 15 in an extrusion press 3. A sheath 4 of aluminium, copper or like metal is extruded around the tube 5, which is long enough to protect the cable core 1 from damage due to the high temperature of the sheath. The sheath 4 and core 1 pass through a cooling chamber 9, in the forward end of which the tube 5 ends, and are then drawn through a sinking die 6 to reduce the diameter of the sheath to fit closely on the core. Specifications 627,793 and 627,815 are referred to.
Patent GB-868632-A (GB)
Title: Improvements relating to axial air gap dynamo electric machines
Inventor: NICOL KENNETH MARTIN
IPC: H02K5/173
Filed: 1959-02-23
Abstract: 868,632. Mounting rotors for dynamoelectric machines; core constructions. LIMIT ENGINEERING GROUP Ltd. Feb. 22, 1960 [Feb. 23, 1959], No. 6201/59. Class 35. In an axial air-gap dynamo-electric machine the rotor frame 5 is supported on a shaft 7 accommodated in a central tubular part 2 projecting axially of the stator frame 1. The shaft is supported in a journal bearing 14 inside the tube 2, and a combined thrust and journal bearing 10 mounted on the outside of the central tube but on the inside of the rotor frame. The minimum distance of separation of rotor and stator is determined by a spacing member 13 and a spring 17 bearing against race 15. The rotor and stator magnetic strip cores have studs 18 accurately welded to them for location and attachment in apertures in the rotor and stator frames. Alternatively the rotor may be of squirrel cage construction and cast integrally with the rotor frame. Fan blades on the periphery of the rotor, or fins on the housing may be provided for cooling.
Patent GB-555235-A (GB)
Title: Improvements in and relating to the manufacture of dynamo electric machines
IPC: H02K13/04
Filed: 1942-05-08
Abstract: 555,235. Conductors for dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., and NICHOL, J. May 8, 1942, No. 6216. [Class 35] Where two conductor bars 10, 11 are to be connected to the same commutator segment 1, instead of connecting them both to the lug 1a as in the usual method, the conductor 10 is bent up so as to lie against conductor 11 and is secured thereto, the conductor 11 being connected to the lug 1a as usual. In this way both connections become equally accessible. An insulating shield 1e is supported by additional lugs 1c of full segment width. The connections may be made by brazing, as in Specification 549,503, soldering or welding.
Patent GB-1175642-A (GB)
Title: Photographic Film Conveying Apparatus
Inventor: KAWA ERICH
IPC: G03D3/12
Filed: 1968-02-08
Abstract: 1,175,642. Film processing apparatus. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. Feb. 8, 1968, No. 6247/68. Heading G2A. Film sheets are conveyed through a processing tank 1 by an endless band 9 to which they adhere by suction. The band passes over an upper roller 8 and a lower roller 7, and between them is a suction chamber 6. This has two flat faces, perforated as at 11, and over which the band 9 passes, and is closed at the top end by roller 8 and at the bottom end by roller 7, the latter being perforated. Chamber 6 is divided into two vertical compartments 13, 14 by a wall 12, the processing liquid flowing down one compartment and up the other as shown by the arrows. In a separate compartment 2 of the tank is housed a pump unit, including a motor driven impeller 4. Liquid is drawn from compartment 13 into the pump through an opening 16, passed back into the tank, and re-enters the suction chamber through an opening 17. This continuous re-cycling produces a suction within chamber 6 which acts through the belt to retain a film sheet thereon. The belt itself is of material which is permeable but not corroded by the developer liquid (e.g. a gauze of steel wire of a synthetic plastic). Thus a sheet inserted at position A is conveyed through the liquid in the tank, and leaves at position B. The conveying unit may be removable from the tank. Fig. 2 (not shown) is a modification having two separate conveyer bands, so that two separate film sheets may be passed side by side through the tank.
Patent GB-324554-A (GB)
Title: Cartons
IPC: B65D25/20
Filed: 1929-02-26
Abstract: 324,554. Cahill Carton Corporation, (Assignees of Cahill, C. N.). Oct. 2, 1928, [Convention date]. Securing.-One of the walls of a carton or box, such as described in Specification 326,006, [Class 18, Boxes &c.], is provided with opposed slits for detachably securing a label in the form of a cardboard strip. The slits 27, 28 are preferably slightly convex, and have diverging slits 29, 30 at their ends to facilitate securing the label C.
Patent GB-1262424-A (GB)
Title: Remote control of receivers
Inventor: LAURENT JEAN-JOEL
IPC: H02J13/00
Filed: 1970-02-10
Abstract: 1,262,424. Signalling over power lines. COMPAGNIE DES COMPTEURS. 10 Feb., 1970 [10 Feb., 1969], No. 6323/70. Heading H4R. [Also in Division G4] A receiver adapted to selectively respond to control signals on a line carrying alternating current comprises means adapted to detect control signals, means adapted to produce pulses derived from an alternating current received between two control signals and means to count the number of pulses produced and to selectively respond in accordance therewith. As described, the control signals are bursts of voice frequency superimposed on a 50 c/s. power signal. The detector includes filter (in the form of a transistor amplifier with negative feedback) for filtering out the control signals, a first monostable circuit arranged to respond only to a long burst (start signal), a bi-stable set in response to the detection of such long burst and arranged when set to remove an enabling signal from a gate which supplies the control signals to the first monostable and to supply an enabling signal to a second gate passing the control signals to a second monostable arranged to respond to a shorter burst (stop signal) yet not to a very short burst (noise), a shaping circuit arranged to receive the 50 c/s. signal and to derive therefrom a train of square pulses at a frequency which is a sub-multiple of the received signal, a wiper switch counter having tens and units switches in cascade, a matrix of orthogonal conductors scanned by the counter by marking a column and a row conductor by the tens and units switches respectively for each count and for each point of the matrix an AND gate which responds only when its row and column conductors are both marked and a stop signal is being received. Pairs of AND gates are used to turn on and off corresponding devices to be controlled. The shaping circuit comprises a resistive attenuating network, a rectifying and pulse-squaring network, a differentiating network, a frequency divider and a further pulsesquaring circuit.
Patent GB-107568-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: BUCKINGHAM FREDERICK SAMUEL
IPC: F02B33/08
Filed: 1917-05-08
Abstract: 107,568. Buckingham, F. S. May 8, 1917. Two-stroke-cycle engines; driving-gear. - A main piston 1 and a charging and scavenging piston 3 reciprocate in coaxial cylinders 2, 4 of different diameters, the piston 3 being connected to the crank-shaft through the link work shown in Fig. 7 or by cams. Charges enter the pump space above the piston 3 through a post 7 and are transferred to the combustion space between the pistons when passages 9 and 10 in the cylinder walls register with a passage 11 in the piston 1. Exhaust occurs at the end of the downstroke of the piston 3 when passages 12 therein register with ports 8 in the wall of the cylinder 4. At the termination of exhaust, the piston 3 rises rapidly to transfer a charge to the combustion space.
Patent GB-1375923-A (GB)
Title: Electrophotography
IPC: G03G15/10
Filed: 1972-02-11
Abstract: 1375923 Electrostatic printing RESEARCH & DEVELOPMENT LABORATORIES OF OHNO CO Ltd 11 Feb 1972 [12 Feb 1971 29 March 1971] 6604/72 Heading G2H A photo-sensitive electrostatic printing plate, composed of an electrically-conductive porous or finely-apertured substrate 3 and a photoconductive hydrophobic surface layer 4 which does not block the pores or apertures in the surface of the substrate, is imaged by exposure to light and developed by application of a water-based ink through the back of the plate. Where no electrostatic latent image is present, the ink fails to reach the plate surface, but electricallycharged areas add their effect to that of developing electrode 27, and cause the ink to fill the apertures 5 and stand proud of the plate surface for transfer to paper 26. The plate may be cylindrical, or part of an endless band, and ink may be fed to it by rollers, or by an ink pool in the interior of a rotating cylinder. The substrate 3 may be photo-etched copper, coated with selenium or with a mixture of photo-conductive material and resin, and a layer of hydrophobic material may be applied over one of photoconductive material. Lists of resins and ink components are given.
Patent GB-881087-A (GB)
Title: Improvements in or relating to writing instruments
IPC: B43K24/08
Filed: 1959-02-25
Abstract: 881,087. Writing instruments. TALLON Ltd., and ARENGO, C. G. Feb. 10, 1960 [Feb. 25, 1959], No. 6606/59. Class 146(3) A retractable writing instrument, e.g. a ball point pen having a rearwardly spring-biased writing unit 11 comprises two plungers, one 13 secured to the rear end of the writing unit and slidable therewith in the barrel 14 and the other 21 projecting from and slidable in the rear end of the barrel, the two plungers being formed with abutting cam surfaces 20, 24 and the plunger 13 having a latch portion 17 which can engage in a slot 18 in the barrel to latch the writing unit in projected position, disengagement of the latch portion from the slot being by means of a push button 27 mounted in the side of the barrel. The latch portion 17 is formed on a reduced part of the plunger 13 which part also carries the cam surface 20 and lateral bosses 42. The cam surface 24 lies at the base of a groove 40 in the front end of the plunger 21. The two plungers are held in continuous abutment by shoulders 41 at the open end of the groove 40 which engage in front of the bosses 42. When the plunger 21 is depressed the latch portion 17 is cammed outwards to assume the position shown. The push-button 27 has a tongue 31 which projects through the slot 18 in the barrel and into a longitudinal slot 32 in the plunger 13. The parts 27, 32 are held together by means of bosses 36 on each side of the tongue 31 which engage behind longitudinal shoulders 39 at the edge of the slot 32. In order to release the latch 17 from the slot 18 the user presses the push-button 27 inwards so that it pivots about the point 34 of the barrel, inward movement of the push-button being limited by shoulders 30 thereon. Specification 858,104 is referred to.
Patent GB-577975-A (GB)
Title: Improvement relating to production of asphalts
IPC: C08L95/00
Filed: 1942-05-18
Abstract: In the preparation of asphalt mixtures with light-weight aggregates such as cork dust, wood flour, peat, coke dust, &c., the aggregate prior of incorporation is primed with a mineral oil, creosote, anthracene oil or other oil from gasworks products.  The priming is effected in the cold or at temperatures up to 90 DEG  F. The primed material may be mixed with bitumen, pitch, tar, &c. in the apparatus described in Specification 554,950.
Patent GB-708477-A (GB)
Title: New or improved twin-passage catheter and process of manufacturing same
IPC: A61M25/14
Filed: 1952-03-17
Abstract: 708,477. Catheters. RUESCH. W. March 17, 1952 [Sept. 24, 1951], No. 6804/52. Class 81(2) A double-passage balloon catheter for intratracheal use is formed from a twin tube 1 extruded over two cores, a groove being formed at the same time to receive a double-bore air tube 6 which is cemented therein. Balloons 3, 4 are drawn over the main tube and secured with silk bindings 9 and; at the upper end, a soft rubber dualattachment piece 19 is fitted to the main catheter tubes, while air tubes 10, 11 are connected to the inflation tubes. Inflation bulbs 12, 13 are fitted and secured, by further silk bindings 17. The whole appliance is finally coated with rubber or synthetic resin by dipping.