baber/WOPTO huggingface dataset:
Patent GB-501321-A (GB)
Title: Machine for die casting metal under pressure
IPC: B22D17/26
Filed: 1938-05-26
Abstract: 501,321. Hydraulic apparatus. INJECTA AKT.-GES. May 26, 1938, No. 15722. Convention date, May 29, 1937. [Class 69 (ii)] [Also in Group XXII] In a die-casting machine having a hydraulic piston 3 for operating the movable mouldhalf, the piston is connected to said half through a hydraulic link. The actuating piston 3 is engaged, over an area 17 smaller than 113, by constant fluid pressure which, except when the cores are large, is also applied by a passage 16 to a still smaller area 15 in a cylinder 12 attached to the sliding head 13 on which the movable mould half is mounted. When pressure is applied to the surface 113 a head 39 engages the cylinder 12 and the mould is closed as in Fig. 1. After casting this pressure is released and the pressure on the surface 17 causes the piston 3 to move to the right to open the mould. When eyes 11 of the head 13 engage stops 9, on fluid held bars 8, the head and mould are arrested but the cores 26, connected by parts 25, 23, 21, 20 to the piston 3 continue to move, and are extracted from the casting, as shown in Fig. 2. At this moment stops 29 on rods 28, slidable in the head 13, but normally held therein, as shown, by a collar 35 and a spring 34, engage the frame 1 and an adjustable stop 24, on an extension 22 of the connecting member 23, engages the head 13. The cylinders 6 are then opened to exhaust so that the rods 8 can, with the head 13 '&c., move to the right until stops 10 engage the cylinders 6. Movement of the ejectors 38 is however prevented by the stops 29 and rods 28, which are connected by clamps 33 to the ejector 130, and the casting is ejected. If the cores are large the space inside the cylinder 12 is emptied of fluid and the valve 18 closed so that no direct force acts, during the return of the piston 3, on the mould but the whole of the cores which first pull the mould half to the right and, when this is arrested by the stops 9, are themselves extracted.
Patent GB-1505748-A (GB)
Title: Method for making ornaments
IPC: B44C5/00
Filed: 1975-04-16
Abstract: 1505748 Moulding ornaments Y MIYAMURA 16 April 1975 15725/75 Heading B6G [Also in Division B5] Ornaments containing ornamental elements encased in clear plastic against a coloured background are made by sinking a dished shell of transparent material into a mass of oil clay 12, Fig. 4, with the opening of the dished shell upwards, and its rim substantially level with the top surface of the oil clay, placing the ornamental elements, e.g. a flower in the shell, pouring in a settable liquid that will harden to a transparent solid in an amount less than that required to fill the shell, allowing the liquid to set, pouring in at least one further portion of settable liquid, the last such portion containing colouring material and being sufficient to fill the shell, allowing the further portion(s) of liquid to set, and removing the finished ornament from the oil clay. The ornament can be applied to a ring, a broach, a button, a pendant or other accessory.
Patent GB-119866-A (GB)
Title: Improvements in Life Saving Suits.
Inventor: LEPAGE JOSEPH EDMUND
IPC: B63C9/093
Filed: 1918-09-27
Abstract: 119,866. Lepage, P. E. Sept. 18, 1917, [Convention date]. Body attachments, buoyant.-A onepiece buoyant life-saving suit is formed of body, leg, arm, and head portions 11, 12, 13, 14, and provided at the top with an opening for ingress and an opening 19 for the face. The body portion is made double, as shown at 17, to receive buoyant material 18, and the arm and leg portions are provided with integral head and foot coverings, the foot coverings being weighted, so that the person remains upright in the water. The opening for ingress is adapted to be gathered in by a draw-string, and is secured by the clamping arrangement shown in Fig. 3. This arrangement is carried by a tightly-fitting cap 20, which is provided with an elastic insertion 21 and secured to the suit within the face opening 19. The plates 22, 23 of the clamp are both convexo-concave, and are each formed with one or more interdigitating flanges 25, 26. The plate 23 is mounted on a post 24 fixed to the plate 22, and can be raised and lowered thereon by the cam lever 33, which is pivoted to the post at 35 and has a cam slot 33a engaging a pin 32 on the hub 31 of the plate 23 The draw-string 28, which has one end fixed to the plate 22, is threaded through rings &c. around the ingress opening of the suit, and its free end is passed inwards through the cap and out through the face-opening 19. When the suit has been donned, the draw-string is pulled to gather the edges of the ingress opening around the post 24, after which the lever 33 is pulled down from the position shown in dotted lines to the position shown in full lines in Fig. 3, thereby clamping the edges of the suit between the flanges 25, 26, &c. The face-opening may be provided with a transparent waterproof mask, in which case provision for the admission and emission of air is necessary.
Patent GB-809748-A (GB)
Title: Improvements in or relating to adhesives and to methods of using the same
IPC: C09J103/02
Filed: 1956-05-22
Abstract: An adhesive for paper, &c., consists of a suspension of ungelatinised starch in a solution in water of a carboxy-methyl cellulose salt, e.g. sodium salt, to which an amount of a solution of an aluminium salt, e.g. sulphate, nitrate, chloride or acetate, in water has been added which increases the viscosity of the solution but is not sufficient to cause an aluminium salt of carboxy-methyl cellulose to flocculate completely.  A suitable concentration of aluminium salt produces between 0,002 and 0,007 gm. equivalents of aluminium per gram of dissolved carboxy-methyl cellulose salt.  In described experiments a solution of 8 gms. of sodium carboxy-methyl cellulose in 800 c.c. was made up to a litre by adding aluminium sulphate solution of varying concentrations and the stability of suspensions was measured after the addition of 160 gms. potato flour starch per litre of suspension agent.  Suitable adhesive contains between 100 and 220 gms. of starch per litre of suspension agent, and may incorporate fillers such as clay, ground gypsum and ground chalk. In all cases no addition of strongly alkaline agent such as alkali hydroxide is required.  Specification 474,583 is referred to.
Patent GB-384319-A (GB)
Title: Improvements in and relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1931-05-29
Abstract: 384,319. Cooling liquids ; refrigerating. SARNMARK, A. U., 1, Skeppsbroplatsen, Gothenburg, Sweden. May 29, 1931, No. 15808. Convention date, May 31, 1930. [Class 29.] Absorption machines.- Heat delivering elements of absorption refrigerating apparatus, particularly the condenser, absorber, and rectifier of continuous-cycle inert gas systems, are cooled by evaporating a liquid such as water on porous or non-porous walls of members exposed to the air. As shown in Fig. 1, a coil 101 traversed by a medium of the refrigerating system is cooled by a liquid 103 in a tank 120 which is connected by pipes 121, 122 with an air-cooled hollow member 123 having porous walls through which the liquid percolates and evaporates. Make-up liquid is supplied from a reservoir 104, and a draught of air may be forced over the porous walls. In the arrangement shown in Fig. 2 the medium of the refrigerating system flows through a non-porous member 130 covered with porous material 106 wetted by a liquid supplied from a tank 104 and distributer 131. The member 130 may, however, have perforations in its walls through which the contained medium passes into the porous material to be evaporated. The porous material may be earthenware, textile material, asbestos or glass wool. The liquid may be circulated by pumps or by forcing gases into the liquid columns. The Specification as open to inspection under Sect. 91 comprises also the following : The above-described methods may be applied to the cooling of liquids and gases generally, and the cooling-liquid instead of being evaporated may be circulated in a closed path through aircooled radiator elements. An absorber 204, Fig. 9 (Cancelled), is cooled by liquid in a corrugated container 201 located in an air flue. The liquid circulates around a baffle 205 between the air-cooled outer wall and the absorber wall. A complete absorption machine of the continuous-cycle inert gas type is shown in Fig. 1 (Cancelled). A " pumping " coil 9 in the divided generator 1 is provided with a good conducting metal wire 10 in heat connection with the source of heat 4 and with the " internal free space of the pump." The condenser coil 101 is immersed in liquid in a perforated vessel 102 surrounded by a ribbed or corrugated porous covering from which the liquid evaporates. The condensed refrigerant flows through a pipe 13, 14 to an annular nozzle 17 at the top of a common evaporator-absorber vessel 15 and induces a flow of inert gas upwards through a pipe 18 extending from the lower absorption space. This subject-matter does not appear in the Specification as accepted.
Patent GB-457661-A (GB)
Title: Improvements in and relating to electric oscillation generators
IPC: H03K4/12
Filed: 1935-05-30
Abstract: 457,661. Valve generating circuits. MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, Surrey, and SPENCER, R. E., 8, Courtfield Gardens, Ealing, London. May 30, 1935, No. 15817. [Class 40 (v)] In a relaxation-oscillation generator having a natural frequency lower than the synchronizing frequency, a reactance element is provided the charge on which varies cyclically with the oscillations, and auxiliary means 11, 12, 13 are operated in dependence on the charge in the reactance for maintaining the oscillations nearer the synchronizing frequency, at least initially, should the synchronizing impulses cease. A blocking oscillator in which a condenser 7 is charged through a resistance 2 and discharged periodically by a valve 1 has synchronizing impulses of slightly higher frequency than the natural frequency applied to the grid circuit of the valve 1. The grid circuit is coupled at 4, 6 to the screening- grid circuit, and includes a condenser 3 which is charged when the valve 1 conducts, and discharges through a resistance 5. The output from the condenser 7 supplies condenser 12 and parallel resistance 13 through a rectifier 11 and a coil 10 coupled to the coils 4, 6. The arrangement is such that the condenser 12 charges up with the condenser 6 and discharges slowly through the resistance 13. During normal synchronous operation a steady state is reached in which the condenser 12 receives a charging impulse only at the peaks of the saw-toothed output. If the generator tends to run slow, as by absence of the synchronizing impulses, the condenser 7 is charged to a higher peak voltage, and impulse of current larger than normal flows to condenser 12, thereby inducing a positive impulse on the grid of the valve 1 and preventing it, in the initial stages, from running slow. In a modification, the voltage across the condenser 7 is applied to the grid of a triode amplifier having a resistance in its anode-cathode circuit across which the rectifier 11, condenser 12, resistance 13 and coil 10 are connected as in Fig. 1. In a further modification, Fig. 3, the condenser 12 and parallel resistance 11 may be inserted in the cathode lead of the triode 14 in the modification above, and the coil 10 in its anode lead, the rectifier 11 being then dispensed with. The coil 10 may be omitted by connecting the anode of the triode 14 direct to the screen grid of the valve 1, or by connecting the end of the resistance 13 and condenser 12 combination remote from the cathode of the valve 14 to the grid end of the coil 4. Alternatively the combination 12, 13 may be connected between the coil 4 and the cathode of the valve 1, in which case the cathode of the valve 14 is connected to the junction of the coil 4 and condenser 3.
Patent GB-637314-A (GB)
Title: Improvements in or relating to time base circuits for cathode ray tubes
IPC: H03K4/92
Filed: 1947-06-16
Abstract: 637,314. Saw-tooth generating circuits. ASHER, H. M. F. June 16, 1947, No. 15836. [Class 40 (vi)] In a circuit for generating a saw-tooth voltage in which a capacitor is charged through an inductor and is periodically discharged under the control of a cyclically varying signal, the effective valve of the inductance is increased to improve the linearity at low repetition frequencies by connecting the inductor in a cathode-follower circuit. Fig. 5 shows a circuit in which capacitor 21 is charged via inductor 27 from the voltage developed across the cathode load resistor 26 and subsequently discharges via valve 29 when positive synchronizing pulses are applied to its control grid. In a further modification, Fig. 6 (not shown), a pentode valve is used and the charging inductor constitutes the load of the cathode follower stage. In a 'further modification, Fig. 8 (not shown), grid current flow limits the charging of the capacitor after a certain voltage has been reached and a truncated saw-tooth waveform, Fig. 7 (not shown) is produced.
Patent GB-1249435-A (GB)
Title: Charging apparatus for granular or pulverous material
IPC: B65G69/00
Filed: 1970-04-03
Abstract: 1,249,435. Endless conveyor systems for particulate material. SOC. FIVES LILLECAIL. 3 April, 1970 [14 April, 1969], No. 15982/70. Heading B8A. In charging apparatus for granular or pulverous material, comprising an endless belt conveyor 16 mounted on a movable carriage 12 reciprocated in a direction parallel to the direction of travel of the conveyor, a drum 20 driving the conveyor belt is driven by a motor 26 at a constant speed of rotation relative to a fixed feeding hopper 18 through a differential 22, two elements 28, 24, of which are coupled respectively to the drum and to the motor, while a third element 30 is coupled to the mechanism 38 for the translational movement of the movable carriage. The differential elements comprise a central pinion 24 and a planet wheel support 28. The third element comprises a toothed ring which is acted upon by a pinion 32 connected to a reduction gear 34 interposed between a reversible motor 36 and the driving wheels of the carriage.
Patent GB-346214-A (GB)
Title: Improvements in and relating to wheel, axle and bearing arrangements for railway vehicles
IPC: B60B37/04
Filed: 1930-05-26
Abstract: 346,214. Vehicle-axle bearings. HUDSON, W. S. and HUDSON, E., 38A, Bond Street, Leeds. May 26, 1930, No. 16167. [Class 12 (i).] In a railway vehicle wheel axle and bearing of the kind in which a single or divided axle passes through a stationary sleeve, each wheel 1 is arranged to rotate upon ball or roller bearings 4 mounted on the outside of the sleeve 3 directly above the rails and within a recess at one side of the wheel hub. In the construction shown in Fig. 1, in which an undivided axle 2 is employed, the ball or roller race 4 and the complementary race 5 on the wheel 1 are disposed in a recessed portion of the hub, having associated therewith a pad 10 of felt interposed between washers 9 for preventing ingress of dirt and loss of lubricant. In a modification, Fig. 4, the inner ends of a divided axle 2a rotate in bushes 11 directly housed in the sleeve 3 and spaced apart by a distance ring 12. Specification 323,269, [Class 12 (i), Bearings &c.], is referred to.
Patent GB-855974-A (GB)
Title: Apparatus for detecting and recording radioactivity
Inventor: FEARON ROBERT EARL
IPC: G01V5/04
Filed: 1958-05-20
Abstract: 855,974. Neutron well-logging. WELL SURVEYS Inc. May 20, 1958, No. 16192/58. Class 40(3). In a neutron &c, welllogging apparatus comprising a radioactive source and a detector shielded therefrom, the detector comprises a chamber 36 filled with a non- radio-active monatomic gas under high pressure which scintillates when subjected to radio-activity and a photoelectric cell comprising a chamber 41 filled with gas under low pressure and having a sapphire wall 39, photo-cathodes 42, 42a and an anode 43. In a modification, the scintillations which affect the photo-cell are limited by a hemispherical shield provided with a small hole closed by a lens. In other modifications, photo-cells each having a cylindrical sapphire wall and a cylindrical shield with a longitudinal slot are employed. In one construction, two photo-cells are arranged with their slots in different directions and in another construction, electrons of a particular energy are directed past the slots of three photo-cells arranged in an arc.
Patent GB-784285-A (GB)
Title: Improvements relating to tubulous, forced flow, once-through vapour generating and superheating units
IPC: F22B29/06
Filed: 1956-05-25
Abstract: 784,285. Forced-flow steam boilers. BABCOCK & WILCOX, Ltd. May 25, 1956 [May 27, 1955], No. 16199/56. Class 123(2) During the starting-up or shutting-down of a steam power plant comprising a forced-flow, once-through boiler 2, a turbine 18 supplied with steam from the boiler and exhausting into a main condenser 22, a pump 24 extracting condensate from the latter and delivering it to a de-aerator 32 and a main feed pump 34 returning the condensate from the deaerator to the boiler, the turbine throttle valve 16 is closed and a valve in a branch pipe 36 opened, to allow the high pressure and temperature fluid from the boiler to flow through a pressure reducing device 40 and a spray attemperator 42 which combine to produce steam which is saturated or wet and is at a temperature such that it can be safely cooled in the main condenser when expanded to the pressure therein. The reduced pressure wet steam flows into a flash tank 48 from which the steam discharges to the condenser 22 through a pressure-reducing valve 56 and also to the de-aerator 32 to heat the feedwater therein, the latter flow being controlled according to the feedwater outlet temperature by a thermostatically-regulated valve 33. The water separated in the tank 48 flows through a pressure-reducing valve 58 into a second flash tank 60. The flashed steam from this tank flows directly into the main condenser whilst the remaining water is withdrawn by a pump 66 and delivered directly either to the condenser or to the condensate line 28 through lines 68, 86 respectively. If made necessary by the concentration of salts therein, the water from the tank 60 can be passed to a treatment plant comprising dirty and clean water storage tanks 72, 74, a cooler 76 and a de-mineralizer 78, the purified water being pumped into the condensate line 28 through a pipe 84.
Patent GB-779016-A (GB)
Title: Improvements in and relating to the measurement of alternating electric currents
Inventor: DILWORTH GEORGE WILLIAM
IPC: G01R19/22
Filed: 1954-06-01
Abstract: 779,016. Bridge measurement of current power measurement. BRITISH BROADCASTING  CORPORATION. May 31, 1955 [June 1, 1954], No. 16253/54. Class 37. An alternating current whose R.M.S. value is to be measured is connected through a variable attenuator-amplifier 11 to a full-wave bridge rectifier 12 energizing a diagonal of, bridge 13 comprising three linear resistances and a thermally variable resistance 14; the remaining diagonal being connected to an unbalance indicating centre zero meter 15. A known current is supplied to the input and the bridge is adjusted for zero reading of the meter with a set value of input attenuation, so that other values of input current may then be measured in response to the values of input attenuation necessary to restore the meter reading to zero; the attenuator being calibrated in R.M.S. input current values. The device is applicable to the measurement of R.M.S. voltage across and power in a known impedance. The Provisional Specification describes calibration of the meter as a vernier indication of small input current changes.
Patent GB-1517595-A (GB)
Title: Bituminous material
IPC: D06N5/00
Filed: 1977-03-31
Abstract: 1517595 Coated sheet materials BP AQUASEAL Ltd 31 March 1977 [22 April 1976] 16320/76 Heading B2E A bitumenous sheet material comprises a non-woven fabric of synthetic organic fibres having a melting point above 250‹C containing, bonded to the fabric, a network of temperature resistant filaments and a coating or bitumen or a bitumen-polymer blend. The synthetic organic fibres may be of polyethylene terephthalate and the temperature resistant filaments may be glass filaments. The polyethylene terephthalate fibres may be bonded into a non-woven fabric with an acrylate resin and the temperature resistant filament network may consist of two sets of continuous filaments at right angles to each other with a gap of # to ¥" between the filaments the two sets of continuous filaments being joined at the intersections. The fabric may be coated by passing through a bath of molten bitumen and then through rollers, first using a relatively soft bitumen followed by a relatively hard bitumen. A filler such as powdered limestone, cement, silica or talc may be present. A final coating of sand or crushed rock may be applied to the bitumencontaining coating.
Patent GB-724078-A (GB)
Title: Pile fabrics
Inventor: MADGE EVELYN WILLIAM
IPC: D04H11/00
Filed: 1950-06-30
Abstract: 724,078. Pile fabrics. DUNLOP RUBBER CO., Ltd. May 28, 1951 [June 30, 1950], No. 16344/50. Class 140. [Also in Group IX] A method of making a pile fabric comprises implanting fibres pilewise, by means of an electrostatic field, in a layer of foamed rubber latex on a backing material and converting the foamed latex to sponge rubber. The backing may be a woven fabric. Backing material 1 on a roll 2 passes between nip rollers 3 and a blade 5 spreads latex from a tank 7 on the upper surface of the backing. The backing then passes between electrodes 10 and 19. Fibres from a hopper 25 are fed by brushes 26, 27 to a conveyer 20, pass between the electrodes and beneath the backing, and become implanted in the latex on the backing. A rotating hexagonal bar 11, described in Specification 704,456, shakes loose fibres from the backing for collection in a tray 28. The pile fabric then passes through a heating chamber 14 having an air inlet 15 and outlet 16 and is wound on a roll 18. The brush 27 rotates at approximately four times the speed of the brush 26. The latex may be foamed by beating air into it, preferably after the addition of a foam-stabilizing agent, or alternatively a blowing agent which liberates gas on heating may be used.
Patent GB-423902-A (GB)
Title: Petrol tap with locking device
IPC: F16K35/08
Filed: 1934-06-01
Abstract: 423,902. Valves. GRIFFITHS, W., 92, Bedford Road, Walthamstow, London. June 1, 1934, No. 16357. [Class 135] A petrol cock of the kind comprising a series of nested rotary valves which must be set according to a code to establish a throughway comprises an inner rotary cylindrical member d rotatable in a sleeve a and provided with a manipulating knob m and an indicating pointer e adapted to co-operate with a code plate b formed integrally with the valve casing. To open the cock the member d is first depressed against the action of a spring f to bring the pointer e into engagement with slots formed on the projecting end of the sleeve a whereby the same may be rotated to its open position. On release of the knob the inner member may then be rotated independently to its open position and so establish a throughway.
Patent GB-841488-A (GB)
Title: A backlash eliminator for screw and nut mechanism of machine tools
IPC: F16H25/24
Filed: 1957-05-23
Abstract: 841,488. Variable-speed gearing; screw- and-nut mechanisms. KEARNEY & TRECKER CORPORATION. May 23, 1957 [July 5, 1956], No. 16376/57. Drawings to Specification. Classes 80 (2) and 80 (3). The subject-matter is the same as Specification 841,487, but the claims are directed towards the backlash eliminating device between the screw and nut.