baber/WOPTO huggingface dataset:
Patent GB-851039-A (GB)
Title: Improvements in or relating to magnetic core storage systems
Inventor: KILBURN TOM
IPC: G11C11/06
Filed: 1955-11-18
Abstract: 851,039. Circuits employing bi-stable magnetic elements. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 14, 1956 [Nov. 18, 1955], No. 33144/55. Class 40 (9). [Also in Group XIX] Each storage element of a magnetic storage array comprises two magnetic cores such as A1, a1 linked by a common winding Z so that a change of one core from state 1 to 0 or from 0 to 1 tends to drive the other core to the same final state. The first or front cores A1 to An, B1 to Bn, C1 to Cn are linked with row conductors YA, YB, YC and the second or back cores al to an, b1 to bn, cl to cn are linked with column conductors X1 to Xn. The digits of a number may be stored on the cores of a single row, the row being determined by a switch SM1. The digits of the number are signalled by switches DV1 to DVn. As shown, the switch SM2 is set for reading and is changed over for writing. In a reading and writing cycle, a generator 11 provides a characteristic train of positive and negative pulses, Fig. 2 (a), to lead 10 and only negative pulses, Figs. 2 (b0) and 2 (b1), to leads 12 and 14. Reading.-Normally the back cores of all elements are in state 0. Assuming that cores B1, B2, Bn are set to 101 initially as in line (1) of Fig. 6, a positive pulse yl, Fig. 2 (a), on lead YB sets all the front cores B1 B2, Bn to 1, Fig. 6, line 2, and as B2 changes to 1, b2 follows and 010, the complement of 101, is set on the cores b1 b2, bn. The same operation signals 010 to transformers T1, T2, Tn, Fig. 6, line 3. The number is transformed into the original number 101 by inverters N1, N2, Nn. A negative signal y2, Fig. 2 (a), restores all the cores B1 to Bn, b1 to bn to 0, Fig. 6, line 4, and a positive pulse y3 sets all the cores to 1, Fig. 6, line 5, in preparation for writing. Writing.-Switch SM2 is set for writing. The switches DV1 to DVn are set as shown if .it is required to store 011 on B1, B2, Bn. A negative signal x1 Fig. 2 (b1) on leads X2, Xn and no signal, Fig. 2 (b0), on lead X1 coincides with a positive pulse y4 on lead YB. Pulse x1 sets b2, bn to 0 whereby 100, the complement of 011, is set on b1 to bn, Fig. 6, line 6. Pulse y4 holds the front cores B1 to Bn in the 1 state. Finally, a negative pulse x2 on all leads X1 to Xn restores all the back cores to 0 and leaves the number 011 stored in the front cores, Fig. 6, line 7. Negative pulses xo are transmitted on X1 to Xn when y2 is transmitted on YB to ensure that all the back cores are 0. The pulses y3, y4 may form a single pulse as in Fig. 2 (c). The amplitudes and directions of the pulses may be adjusted as in Fig. 2 (d) to avoid direct current components in the generator output. Two cores A, a may be linked by a wire loop Z, Fig. 4, or by a wire Z, Fig. 5, bridging two electrically-connected metal plates P1, P2 common to the whole array. The digit " 0 " may be signalled by a displaced pulse x<SP>1</SP>, Fig. 2 (c).
Patent GB-429349-A (GB)
Title: Improvements in or relating to handles for power operated portable tools
IPC: B25D17/04
Filed: 1933-11-27
Abstract: 429,349. Portable electric grinders. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and KRAMER, J. B., Witton Kramer Electric Tool & Hoist Works, Witton, Birmingham. Nov. 27, 1933, No. 33160. [Class 60] [See also Group XXII] A handle 1 for power operated tools such as electric drilling machines and grinders is of tapering form towards the part 3 engaged by the little finger and preferably also towards the part 4 gripped by the fore finger ; it has transverse ribs 2 and is bulged to engage the palm of the hand, the back 29 being curved whilst a projection 31 forms a rest for the side of the little finger. In the machine shown in Fig. 2 two such handles 8, 9 are secured at an angle of 60‹ to arms 11 on the motor casing 10 by means of spindles passing through handle bores having an enlargement 7 for a fixing nut. A sector 5 on the handle provides a rest for the back of the thumb and one of the handles 8 has an enlarged sector 5 with countersunk holes 6 for screws connected to mechanism for controlling the motor, handle 8 having a small rotary motion enabling it to operate an electric switch for stopping and starting the motor. Fig. 3 shows a handle in the form of a pistol grip 14 cast in one piece with the motor casing 22, the handle having ribs 16 and a thumb rest 18 and tapering towards the little finger rest 25. The first finger rest 27 is carried by a trigger switch 15 acting in conjunction with a switch lock 19 adapted to maintain trigger 15 in closed position.
Patent GB-866130-A (GB)
Title: Improvements in or relating to apparatus for cooking and heating food products
Inventor: MARDEN HAROLD ALEXANDER
IPC: A47J37/06
Filed: 1958-10-17
Abstract: 866,130. Grilling and toasting. ASSOCIATED BRASSFOUNDERS (BIRMINGHAM) Ltd. Jan. 18, 1960 [Oct. 17, 1958], No. 33243/58. Class 28 (1). [Also in Group XI] Hamburgers gripped between spring pivoted jaws 8 are cooked by infra-red electric heaters 2, and are then inserted in bread rolls which have been toasted on flat spikes 16. There are several heaters 2 in an oven, the heaters being controlled by time switches 3 &c., the oven being insulated by flanges 14 which make slight heat contact at the flange 14 with the oven casing 11. The heating fumes are extracted by a fan, Fig. 3 (not shown), passing the fumes through a filter. The heating elements are connected by withdrawable spring contact pins. The heaters and toasters can be controlled by thermostats.
Patent GB-1008631-A (GB)
Title: Improved process for the production of electrophotographic material
IPC: C07D277/66
Filed: 1961-09-15
Abstract: 1,008,631. Electrophotographic materials. RENKER-BELIPA G.m.b.H. Sept. 15, 1961 [Sept. 19, 1960], No. 33261/61. Heading H1K. An electro-photographic material has a support bearing a photo-conductive coating containing one or more thiazole compounds whch conform to the general formula in which Ar denotes an aromatic ring system or a pseudo-aromatic heterocyclic ring system, and X denotes one or more substituents of the same or different types adhering to the ring system and of which many examples are given. The photo-conducting compound may be used without a binder. The layer may contain small amounts of conventional sensitizing dyestuffs Sensitization may also be achieved by adding small quantities of coloured photoconductors. The Specification suggests many natural and synthetic resins or suitable binders, and gives much detail of suitable support materials. When considering the supports it is stated that if a metal foil is used a rectifying barrier layer of copper oxide, cadmium oxide, or aluminium oxide may be provided between the foil and the photo-conductive layer The specific thiazoles mentioned in the Specification are 2 : 5-di-phenyl-thiazole, 2-phenyl-5-ptolyl - thiazole, and 2 : 5 - bis - (4<SP>1</SP> - dimethylamino-phenyl)-thiazole. In the example, the first of these is used with a cyclohexanoneformaldehyde resin to form a photo-conductive layer supported by an aluminium foil. Reference has been directed by the Comptroller to Specification 964,873.
Patent GB-484014-A (GB)
Title: Improvements in or relating to electrolytic processes for the manufacture of aluminium
IPC: C25C3/06
Filed: 1936-12-04
Abstract: 484,014. Electrolytic production of aluminium. GARDNER, D. Dec. 4, 1936, No. 33310. [Class 41] Aluminium is produced by electrolyzing anhydrous aluminium sulphide dissolved in a fused normal anhydrous fluoride or mixture of fluorides in an atmosphere of a reducing and /or inert gas at ordinary or at a reduced pressure in substantial absence of moisture, nitrogen, and oxygen or oxygen-containing gases, for example in hydrogen or argon. The fluoride or mixture of fluorides may have a melting point of about 950‹ C., and may consist of cryolite containing if desired some sodium or potassium fluoride. The electrodes may be carbon, and the lining of the electrolysis chamber should be made of a substance not liable to evolve oxygen or oxygen-containing gases at the temperature of electrolysis, such as graphite, carborundum, petroleum coke, or zirconium or tungsten carbide. The process may be intermittent or continuous.
Patent GB-1195765-A (GB)
Title: Improvements Relating to the Manufacture of Phosphoric Acid
Inventor: COCHRAN LINDEN WAYNE
IPC: C01B25/18
Filed: 1968-07-12
Abstract: 1,195,765. Phosphoric acid. MULTIMINERALS Ltd. 12 July, 1968, No. 33345/68. Addition to 1,106,231. Heading C1A. Phosphoric acid is produced by treating a calcium-phosphate-containing material with phosphoric acid to form monocalcium orthophosphate, crystallizing, and contacting the crystallized monocalcium phosphate with a cation-exchange resin in the H-form, without the separation of insolubles that may be present. The crystallized phosphate may be contacted with the cation-exchange resin in solid form, or it may be redissolved, e.g. in phosphoric acid, before contact with the resin. The material may contain tricalcium phosphate, the examples employing apatite.
Patent GB-604991-A (GB)
Title: Improvements in safety devices for aircraft
IPC: A62C3/08
Filed: 1945-12-11
Abstract: 604,991. Fire-protective systems. TILTMAN, A. H., LANGLEY, M., GLENDINNING, W. G., and MACLENNAN, A. M. Dec. 11, 1945, No. 33475. [Class 47 (ii)] [Also in Groups XXVI, XXXIII and XXXVII] Protective apparatus for aircraft, particularly for effecting the release of extinguishing medium, the closing of fuel cocks or the control of electric circuits in case of a fire risk and also applicable for giving a warning of the incipient collapse of structural members, electrical conductors or power plant components of the aircraft, comprises a closed system of pipes 14 which are secured to the members which are liable to overstrain or collapse in use or to rupture on impact. The pipes are maintained above or below atmospheric pressure and are connected to a pressure-sensitive device 13, such as an electric switch, which operates the protective or warning devices, shown as extinguishers 11, if the pipe system is opened to atmosphere. The system includes frangible bulbs 26b-26e at exposed points which will fracture on impact, and rupturable sections 26a and 26f which are rigidly secured to structural members so as to break if the member collapses or distorts. The sections may be of brittle material anchored at each end or may consist of an opening in the piping closed by a disc or plug adapted to be broken or torn out if the structural member distorts. The piping may normally be kept at a standard pressure by a compressed gas reservoir 16 or a pump connected to it by a " bleeder " tube. The switch 13, Fig. 2, which may be replaced by a valve or other pressure-sensitive actuator, comprises contacts 21, 22 held apart by a diaphragm 18 responsive to the pressure in the piping, and closed by a spring 21a when the piping is opened.
Patent GB-1024799-A (GB)
Title: Graphite welding
IPC: G21C3/10
Filed: 1964-08-01
Abstract: 1,024,799. Moderators. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 17, 1964 [Oct. 28, 1963], No. 33491/64. Heading G6C. [Also in Division B3] A method of welding a graphite-to-graphite interface comprises the steps of exerting an initial pressure of about 14,000 p.s.i. across the interface and while continuing said initial pressure, passing an alternating current having a peak current density of from 310,000 to 1,000,000 amps/sq. in. across said interface, while simultaneously exerting a second pressure of such magnitude that the total pressure shall equal about 15,000 p.s.i. across the entire interface as enlarged by the resistance heating effect of the current. An apparatus for carrying out the method to seal a nuclear reactor fuel container made of nuclear graphite comprises a frame 11 having upward projections 12, 13, 14. The stator 15 of an electromagnet is mounted on the projection 14 and has an armature 19 mounted on a shaft 18 which also carries at one end the piston 22 of a pneumatic cylinder 21. At the other end of the shaft is mounted a chuck 30 which is insulated from the shaft 18 and which receives the conical end 32, Fig. 2 (not shown) of a high-purity graphite plug which forms one of the workpieces. The other workpiece is a high-purity graphite tube 33 which is located axially by an insulated end-stop 40 and positioned radially by an insulated holderelectrode 41 made of copper alloyed with tungsten or tungsten-carbide and having an insert 42 of even greater heat resistivity. The cuhck 30 which is also an electrode is made of the same material as the electrode 41. The welding current circuit comprises the secondary of a transformer 45, the lead 44, the stator 15, the lead 34, the electrodes and workpieces and a return lead to the transformer. Operation.-The initial pressure between the workpieces is created by the pneumatic cylinder 21 and the additional pressure by the attraction of the armature 19 by the stator 15 which is energized by the welding current. In an example in which the apparatus was enclosed in a vessel evacuated to 25 microns of Hg to avoid bubble formation the tube 33 had an outside diameter of 0À551 inch and a wall thickness of 0À030 inch. The interface between the tube and the plug was conical. The initial pressure was 14,000 p.s.i. and a one-cycle pulse lasting 16À6 milliseconds was passed, producing a peak current density of 310,000 amps/sq. inch. The interfacial area enlarged by four times and the final interfacial pressure was 1500 p.s.i. A second example describes the welding of two parts each consisting of a solid graphite rod, the meeting ends being tapered to 1/8 inch diameter.
Patent GB-1037921-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D23/06
Filed: 1963-01-29
Abstract: 1,037,921. Advancing mine-roof supports. K. M. GROETSCHEL. Jan. 29, 1963 [Jan. 29, 1962], No. 33678/65. Divided out of 1,037,912. Heading E1E The subject matter of the present Specification is contained in the parent Specification to which attention is directed.
Patent GB-507064-A (GB)
Title: Improvements in or relating to liquid refiners and method of refining liquids
IPC: C10M175/00
Filed: 1937-12-06
Abstract: 507,064. Filters ; filtering - media. RUSSELL, J. K., COLLINS, W. B., and BOGGS, W. W. Dec. 6, .1937, No. 33763. Addition to 476,422. [Class 46] [Also in Group III] The refining element of apparatus for purifying liquids comprises a finely divided adsorbent material and a large number of lumps or wads of a fibrous filtering material which supports the adsorbent material, the said materials being . arranged in separate layers and so that flow-imped. ing packing or settling of the adsorbent material is substantially prevented. The adsorbent material may be activated, e.g. as described in Specification 476,421, and the parent Specification, and may consist of chemically or otherwise activated clay of one or more degrees of fineness: there are specified fuller's. earth, synthetic clay, pumice, infusorial earth, diatomaceous earth, kieselguhr, and Bentonite. The fibrous material may be mineral, rock, or steel wool, asbestos, cotton waste, curled hair, or paper. The apparatus may be fitted in the oil circuit of an internal combustion engine, as in Specification 476,421 and the parent Specification. A refiner may consist of a horizontal chamber, containing a layer of fibrous material (which may rest on a foraminous sheet) supporting a layer of adsorbent material or a plurality of pairs of such layers which may be contiguous or separated by felt or wire gauze and may have intervening air spaces, having liquid supply and withdrawal connections on its lower and upper faces respectively. Alternatively, a refiner may consist of the apparatus illustrated in the parent Specification, the refining material being arranged as pairs of concentric layers, which pairs may be separated by partitions of wire gauze or other loraminous material or of felt or by air spaces, or of the apparatus illustrated in Specification 476,421, when the refining material may be arranged in superposed or concentric layers. Further, as shown in the Figure, an outer casing includes an annularly or longitudinally corrugated outer shell 4 which may be reinforced by hollow foraminous ribs 16. Inner shells 7 and 8 retain a filter 9, and between shells 4 and 7 is situated a refining element 10 consisting of layers as described above. Shells 4, 7 and 8 are foraminous except near their ends, and are closed by bevelled discs 5, the bevels of which are covered with felt, provided with foraminous baffles C, e.g. of wire cloth.
Patent GB-325289-A (GB)
Title: Improvements in and relating to lightning or surge arresters
IPC: H02H9/00
Filed: 1928-11-17
Abstract: 325,289. British Thomson-Houston Co., Ltd., and Holbrook, H. S. Nov. 17, 1928. Protective arrangements.-A lightning or surge arrester comprises an earthed oil filled tank 1 with a high voltage bushing 5 on its cover. Upon the bushing is an inductance 3 and suspended from it by a rod 6 is a connecting body 6a within the tank to form a capacitor element 1. A resistor element 2 constituted by resistance rods 7 or by bent wire, strip or rod, is connected between the inductance and the conducting body 6a, preferably within the tank and carried by the rod 6. For transformer protection the connections are as in Fig. 4, the line 9 being connected to the junction of inductance and resistance, but for line protection the inductance, is in series with the line 9 and the resistance is connected to the mid-point of the inductance which is then arranged horizontally on the bushing.
Patent GB-364246-A (GB)
Title: Improvements relating to hinges
IPC: E05D5/12
Filed: 1930-11-11
Abstract: 364,246. Hinge pins. KEMP, W. C., 69, Victoria Park Drive North, Scotstoun, Glasgow. Nov. 11, 1930, No. 33897. Drawings to Specification. [Class 65 (ii).] The pin, made of spring steel, is fixed in one member of the hinge and the part bearing in the other member is split to form two or more resilient limbs, which are splayed outwards to give frictional resistance to turning. The pin may be split along its whole length.
Patent GB-1471534-A (GB)
Title: Method and apparatus for feeding rod-like articles
IPC: B65G15/14
Filed: 1973-07-17
Abstract: 1471534 Spacing conveyed articles MOLINS Ltd 15 July 1974 [17 July 1973] 33950/73 Heading B8A A continuous stream of rod-like articles, e.g. cigarette filters, is fed to a pair of opposed belts 6, 8, and the articles are accelerated by the belts 6, 8 to space them apart, the spaced apart articles being forwarded by further opposed belts 10, 12 and discharged by a device 14 which forwards the articles at a regular spacing. A pusher conveyer 4, which receives the articles from flutes in a drum 2, forwards the articles to the belts 6, 8, which are toothed to engage toothed drive sprockets. The device 14 comprises a wheel having fingers 14A and being driven at a speed greater than that of the belts 10, 12.
Patent GB-1356810-A (GB)
Title: Ultrasonic atomizer for atomizing liquids and forming an aerosol
IPC: B05B17/06
Filed: 1971-07-20
Abstract: 1356810 Aerosol producers LKB-MEDICAL AB 20 July 1971 [23 July 1970] 34053/71 Heading B2F In an ultrasonic atomiser for forming an aerosol, which comprises a container 1, a liquid inlet 11, a controlled flow carrier gas inlet 13 and an aerosol outlet 25, a transmission medium 9, e.g. water, is provided to transfer energy from an ultrasonic vibrator 7 to a vibrating plate 19. The vibrator 7 is inclined to the plate 19 at an angle α which is stated to assist starting of the atomiser, and may be formed by a pizoelectric crystal. In operation, the vibrator 7 causes the medium 9 to contact the plate 19 which is circular with parallel major faces. A conical baffle 21 is provided to trap any liquid not atomised, any liquid not so trapped being discharged through a drain 17. The container 1 consists of upper and lower parts 5, 3 respectively. The plate 19 and vibrator 7 may be disposed vertically. The liquid may be supplied evenly distributed around the periphery of the plate 19 through either a circumferential slit therein or through recesses evenly distributed around the periphery of the plate.
Patent GB-1533899-A (GB)
Title: Matrix heat exchanger including a liquid thermal couplant
IPC: F22B1/06
Filed: 1976-08-16
Abstract: 1533899 Steam generation; tubular heat exchangers UNITED STATES DEPARTMENT OF ENERGY 16 Aug 1976 [21 Oct 1975] 34057/76 Headings F4A and F4S In a matrix heat exchanger having an outer shell 11 provided with an inlet 13 and an outlet 15 for the flow of a primary fluid through primary conduits 21 and an inlet 17 and an outlet 19 for the flow of a secondary fluid through secondary conduits 23, annular spaces 31 are provided between the conduits 21 and 23 and the matrix material 25, the spaces 31 being filled with a liquid molten metal 33 such as Bi, Pb, Hg for example. An upper plenum 35 is filled with an inert gas for pressure equalization and a lower plenum 37 is filled with the liquid molten metal 33 which extends upwardly into the annular spaces 31 provided between the conduits 21 and 23 to a level somewhat below the uppermost surface 39 the matrix material 25. The heat exchanger may be used to generate or superheat steam by passing a sodium primary coolant through the heat exchanger.
Patent GB-367014-A (GB)
Title: Improvements in or relating to fuel injectors for internal combustion engines
IPC: F02M61/08
Filed: 1930-11-12
Abstract: 367,014. Fuel injectors. ABRAMSON, A., 87, Fochova, Prague. Nov. 12, 1930, No. 34109. Convention date, Dec. 3, 1929, [Class 7 (iii).] The valve 3, controlling the fuel-injection nozzle 2 and arranged to be opened outwards by the pressure of the fuel against the action of a spring 4, has a line contact with the outer edge of the nozzle, and the greater part of the valve cone projecting so as to serve as an atomizer for the issuing fuel.
Patent GB-837648-A (GB)
Title: Improvements in drivers' hand signalling devices
IPC: A41D19/015
Filed: 1957-11-01
Abstract: 837,648. Road-traffic signs. HUGHES, A. E. Oct. 30, 1958 [Nov. 1, 1957], No. 34125/57. Class 3(2) A hand signalling device for road users comprises a glove having a battery, a bulb h and switch means in the form of a slide k which is adapted to close the bulb circuit when the middle. finger is straightened. The slide bears against a spring o to urge same against a contact q<SP>1</SP> and close the circuit, a projection i on said slide being adapted to engage the bulb. The bulb. may be surmounted by a transparent amber dome or a reflector.
Patent GB-1116561-A (GB)
Title: Fluid controlling valves
Inventor: HARRIS DEREK JOHN
IPC: F16K7/12
Filed: 1964-08-20
Abstract: 1,116,561. Valves. SAUNDERS VALVE CO. Ltd. 17 Aug., 1965 [20 Aug., 1964], No. 34131/64. Heading F2V. A valve comprises a straight through bore 12, and a seating 15 formed by an opening in a casing 11 generally tapering into the bore, the mouth of the opening lying substantially in a plane, a diaphragm closure member 16 clamped at its outer margin to the casing and pressed against the seating by a compressor 19, and shaped so that there is substantially no stretching in the closed position, the seating being merged with the clamping surface by a rounded portion 24 which is of a radius of not less than half the radius of the base of a cone constituted by the tapering side of the seating, taken at the plane of the mouth of the opening. The diaphragm has a peripheral rib (29) on its upper face, Fig. 2, not shown, and is connected to the compressor by an embedded stud 18. The compressor 19 is connected to a rising spindle 36 by a pivot pin 38, and is formed by a central hose portion with radially extending fingers (32), Fig. 3, not shown. In a further embodiment, Fig. 4, not shown, a compressor 19a is hollowed out to lighten it, and is moved by a non-rising spindle (47), and the diaphragm is secured by a nut (44) which allows axial lost motion.