baber/WOPTO huggingface dataset:
Patent GB-648923-A (GB)
Title: Improvements in metal cartridges
IPC: F42B7/12
Filed: 1948-03-02
Abstract: 648,923. Shot-gun cartridges. PAULVE, M. L. A. March 2, 1948, No. 6566. Convention date, April 25, 1947. [Class 9 (i)] A metal cartridge case 1 is closed by forming folds or pleats 3 at the edge and applying a crimping tool 4 to press the pleats together, a plastic plug 8 being extruded between the pleats from an axial bore in the tool. The socket in the tool has a convex end wall united to the cylindrical wall of the socket by a torus of large radius, so that as the tool is forced downwards the pleats are forced inwards to form a concave closure united to the cylindrical wall by a torus 9 of large radius. As the pleats are forced together the plug is squeezed into the interstices between the pleats forming a moisture-proof seal. The plug material may be a thermo-plastic substance such as natural or synthetic rubber extruded in a pasty form or as a thread. The cylindrical wall of the case may have one or more grooves 10 in which are distinctive markings indicating number of shot and type of charge in the case.
Patent GB-1193755-A (GB)
Title: A Separation System for Immiscible Liquids of Different Densities
Inventor: SHEEHY JAMES JOSEPH
IPC: B63B57/00
Filed: 1968-02-09
Abstract: 1,193,755. Liquid-separation system with impurity monitor. ESSO RESEARCH & ENG. CO. 9 Feb., 1968. No. 6576/68. Heading B1D. In a system for separating liquids (such as contaminant oil from water to be discharged from the ballast tank 10 of a tanker), the essential integers claimed are referenced in the Figure 'by underlined numerals, and the system operates as follows: (i) the liquids are placed in a collecting tank 14 where they tend to separate by gravity and preferably by the influence of a chemical agent and heating coils 17 into an oil layer 18, a water layer 19 and a mixed layer 20; (ii) layer 19 is drawn off by pump 24 and expelled through by pass valve 43 and conduit 38 to waste disposal outlet 39 ("decanting"), (iii) ultrasonic probe 15, sensing the approach of layer 20, actuates control 49 which cuts pump 24; bypass valve 43 is closed and (iv) a light-duty pump 23 drives liquid trough a separator 29 and a coalescer 36, to be discharged via conduits 37-39; (v) if at any time during stages (ii)-(iv) oil contamination in outlet 39 exceeds a given value, say 100 p.p.m., this is .sensed via conduits 46a or 46b by a photoelectric sensor means 42, which actuates control 49 to close discharge valve 41 and open a valve 45 to return the liquid via conduit 44 to tank 14.
Patent GB-608919-A (GB)
Title: Improvements in reamers
IPC: B23D77/00
Filed: 1946-03-02
Abstract: 608,919. Reamers. NEWBY, J. T. March 2, 1946, No. 6578. [Class 83 (iii)] The peripheral faces E of the blades of a reamer have a spiral form, the radial relief at any. point on a face being directly proportional to its angular distance from the cutting edge Band equal to between one-tenth and two-fifteenths of the circumferential blade thickness at the rear edge F of the blade. A ring of angularly spaced arcuate niches O formed in the non-fluted portion of the body each have a flat face O substantially coplanar with the front face G of the adjacent blade to cooperate with a spring finger to facilitate sharpening. The cutting edges of the blades may be formed as hard metal inserts.
Patent GB-554215-A (GB)
Title: Improvements in dies for the drawing of bar, tube, rod or strip
IPC: B21C3/06
Filed: 1942-05-18
Abstract: 554,215. Drawing-dies. BOLTON & SONS, Ltd., T., WOOD, J. W., and BRIDGETT, T. May 18, 1942, No. 6677. [Class 83 (iv)] Drawing-dies are built up from sections having operative faces formed of two surfaces at an angle, one surface 8 being parallel to the axis of drawing, and the other 9 being inclined at from 4 to 12 degrees thereto. The surfaces 10, 11 are supplementary to the surfaces 8, 9 respectively so that when sections 4, 5, 6, 7 are assembled in a ring holder 1 the die faces can slide on one another to permit any desired degree of adjustment by backing-up screws 2, 3 in pairs at an angle as shown. One or more of the sections may have stepped or other non- planar surfaces such as a single stepped surface 15, Fig. 8, or a double stepped surface 13 ; m such cases restriction of two more dimensions results. Six sections may be arranged to provide for the drawing of hexagonal and triangular sections.
Patent GB-931568-A (GB)
Title: Reproduction of multi-coloured patterns
Inventor: SMITH JOHN WILLIAM WILLIS
IPC: G03F3/08
Filed: 1961-02-23
Abstract: 931,568. Coloured-pattern reproducer. WALL PAPER MANUFACTURERS Ltd. March 26, 1962 [Feb. 23, 1961], No. 6679/61. Class 40 (3). The invention is concerned with reproducing photographically a single colour from a multicoloured pattern (e.g. wall paper, textiles or coloured cartoons) and is characterized in that the reproducing head is controlled by electrical signals proportional to colour (defined as to both hue and saturation) and the brightness of the original colour. As shown, the rotatable drums 1, 2 around which are wrapped the original picture and the photo-sensitive paper respectively are movable axially so that corresponding points on the periphery of each drum follow a common helical path. Light from the lamp 3 is reflected into the four-way beam splitter 4. Three of these beams are passed through red, green and blue filters respectively to fall on photo-cells 6, 7 and 8. The output from each cell is D.C. amplified and applied to the magnetic deflection coils (arranged mutually at 120 degrees) of the C.R.T. 12. The gain of the amplifiers 9, 10, 11 is manually preset (using a neutral step wedge) to align an " image " of the correct due with the aperture in the mask 17 to energize the photo-cell 14. The fourth beam from the beam splitter 4 activates photocell 5, the output from which is applied to amplifier 13 which produces an output only when the input signal lies between pre-set limits (that is the original picture is of a preselected brightness). The amplifier 15 is triggered by coincident signals from photo-cell 14 and amplifier 13 to activate the crater lamp 16. In alternative arrangements (not shown), the cell 5 is responsive to the integrated output of the cells 6, 7 and 8. The C.R.T. 12, the mask 17 and the photo-cell 14 may be replaced by a corresponding electrical network.
Patent GB-545897-A (GB)
Title: Ball joint
IPC: F16C11/06
Filed: 1941-05-28
Abstract: 545,897. Ball joints. HIRST, T. E. C. May 28, 1941, No. 6817. [Class 65 (ii)] A ball joint comprises a socket 1A closed at the end by a cap 4 and housing a ball 2A pressed against the socket by a spring 3 pivoting and centring on the cap and bearing in a recess in the ball below the centre of the ball.
Patent GB-686378-A (GB)
Title: Improvements in or relating to vapour condensers
IPC: F28B1/02
Filed: 1949-03-12
Abstract: 686,378. Surface condensers. BAKER, L. June 8, 1950 [March 12, 1949], No. 6819/49. Class 64 (iii) In a vapour condenser, e.g. for use in vacuum refrigeration plants or water-cooled condensers of steam power plants, in which coolant tubes 16 are arranged in rows a, b, c ... across a casing 10 through which the vapour flows from inlet 12 to outlet 14, the number, size and distribution of the tubes in each row and the cross sectional area of the casing at each row are so related that the ratio of the amount of vapour left uncondensed by any one row of tubes and the area left available for the passage of vapour by the next row is substantially constant. The rate of condensation increases from row to row from inlet to outlet in a geometrical proportion. As shown in Fig. 1, tubes 16 of equal length and diameter are equally pitched in rows a, b, c... in which the numbers of tubes decrease substantially by 25 per cent from row to row. The end walls of the casing 10 being parallel and the side walls shaped to the tube nest, the cross sectional area of the casing also decreases in a geometrical progression having a common ratio between 0.5 and 1 from inlet 12 to outlet 14. Instead of having parallel end walls and the curved side walls shown, the casing may be madeup of three frusto-conical rings enveloping respectively rows a-c, d-f and g-i. In a modification, Fig. 3, the rows are equal in length so that the pitch of the tubes decreases as the number of tubes in a row increases and the cross sectional area of the casing available for vapour flow thus decreases geometrically from vapour inlet 12 to condensate outlet 14. The common ratio in each case in the direction of increase is 1.2. The staggered last row j of tubes 16 condenses the last 16 per cent of vapour but may be omitted to allow that amount of vapour to pass out. The rows a, b, c ... may be curved in arcs concave towards the inlet 12 but parallel one to the other and, further, if the casing is not of constant cross section, asymmetrically arranged, Fig. 2 (not shown). The arrangements are said to produce a constant speed of vapour flow and a low pressure difference between inlet 12 and outlet 14.
Patent GB-1150396-A (GB)
Title: Thermocouple System
Inventor: MEADOR JAY D
IPC: G01K13/02
Filed: 1968-02-12
Abstract: 1,150,396. Thermo-electric devices. GENERAL MOTORS CORP. 12 Feb; 1968, No. 6890/68. Heading H1K. A thermocouple 12 comprises a pair of thermoelectric elements 16 and 18, of different noble metals, forming a junction 20 for insertion into a medium whose temperature is required to be sensed, and a pair of leads 24 and 26, of different metals, joining the thermocouple to its associated equipment. The junctions 22 and 28 between the lead conductors and the elements are arranged to be located near the sensing point such that during operation they lie in a region of such a temperature that the net E.M.F. generated in them is substantially zero. One of the elements 16 is formed of an alloy containing by weight 55% palladium, 31% platinum and 14% gold, and the other element 18 is formed of an alloy of 65% gold and 35% palladium. The negative lead 24 is made of an alloy of 95% nickel, 3% aluminium and the remainder silicon and manganese while the positive lead 26 is made of an alloy of 90% nickel and 10% chromium. The butt welded junctions 22 and 28 are insulated from each other by a magnesium oxide mass 13 retained in a stainless steel sleeve 15 in metal shell 10.
Patent GB-712176-A (GB)
Title: Improvements in or relating to communication systems
IPC: H04M11/04
Filed: 1950-03-20
Abstract: 712,176. Manual exchange systems. CLAESSON, P. H. E. March 20, 1950 [March 19, 1949], No. 6928/50. Class 40 (4) In a system such as a police alarm system where a plurality of substations share a common line to an exchange, each substation is capable of transmitting two distinct call signals according as the call is a normal or emergency call. In the latter case the exchange emits signals disconnecting any normal call which may be in progress and connecting up the substation from which the emergency call was originated. The subject-matter is identical with that of Specification 712,227 which claims other features. The substation telephone set is presumed to be situated in a kiosk and normal call is made by unlocking and opening its door thereby closing contact K2. On the lifting of the handset contact K completes a loop through the telephone set T to bring up the line relay LR1 fully, and lights the calling lamp AL. When the operator inserts the plug SS relay S4 comes up in series with BR which de-energizes LR1 to extinguish the calling lamp. Relay Sl operates upwardly to the calling subscriber's loop and brings up S1H. The operator throws key EO and conversation takes place in the normal manner. When the calling party hangs up, S1, S1H release to light the clearing lamp SL which is extinguished by S4 when the plug is taken down. In the case of an emergency call, made after smashing the glass in the kiosk door, contact K2 remains open so that relay KR is energized in series with the telephone set, thereby earthing the a-wire to bring up relay LR2 which lights the emergency lamp KL 1  and also S2 when the plug is inserted (or even if the plug is already inserted in response to some other call). Relay S2 lights lamp KL2. When the operator throws key EO the impulse generator Imp 1 impulses S3 and the number indicator S6. S3 reverses the line current to step the switches S which 'have contacts c individual to their separate kiosks. When the selectors are set to the position corresponding to the calling kiosk the relay KR which has been held by its residual magnetism receives demagnetizing current over contact c and releases, thereby restoring S2 at the exchange to disconnect the impulse generator Imp 1. When the calling subscriber hangs up S1, S1H release to connect up the impulse generator Imp 2 to restore the number indicator S6 and to pulse S3 which restores the selectors S during the slow release of S5. In the substations when the selectors S reach the home position relay R comes up to stop the stepping and holds while the impulsing continues. An outgoing call may be made by operating button VO which connects A.C. to the line to operate V at the substations. If a line break occurs relay LR releases fully to light AL. When the plug SS is inserted relay S1, which is of the type having a neutral mid-position, operates downwardly under the influence of its biasing coil, to light a fault lamp FL.
Patent GB-1418736-A (GB)
Title: Igniter assemblies for afterburners of gas turbine engines
IPC: F02C7/264
Filed: 1973-02-13
Abstract: 1418736 Gas turbine jet engines - re-heat equipment GENERAL ELECTRIC CO 13 Feb 1973 [17 Feb 1972] 6979/73 Heading F1J The invention relates to an igniter assembly for a gas turbine engine re-heat combustion equipment, the igniter comprising an electrical discharge igniter disposed within a hollow housing, there being means for delivering cooling air to the interior of the housing and means for discharging at least a portion of the cooling air from the housing as anti-flameholding air. The engine shown in Fig. 1 is a gas turbine ducted fan engine with re-heat combustion equipment comprising a re-heat fuel injector 40 disposed in the fan duct 26, a flame holder 44 and a re-heat igniter assembly 42 located in the same plane as the flameholder; a by-pass air and turbine exhaust gas mixer 36 is provided. The igniter 42 comprises a hollow aerofoil casing 54 within which is disposed a hollow elliptical casing 56, the two casings forming three passages 136, 140 and 104. The two casings are secured at the upper end to a part-spherical member 74 which engages within a correspondingly-shaped sleeve 76 secured to the engine casing 22 whereby the igniter is permitted angular movement. Two openings are formed in the member 74, an electric discharge igniter 46 extending through one opening into the casing 56 to abut against the lower end 60 of the casing 54, the tip of the igniter 66 projecting through an opening 64 in the end-wall 60; a pilot fuel injector 72 extends through the other opening in the member 74 into the passage 140 formed between the casings 54, 56 and projects through the end-wall 60. The lower end of the igniter assembly projects through an opening 118 into the flameholder 44. A nut member 92 secures the end of the igniter 46 to the member 74, the nut member engaging a spring 98 which bears against a sleeve 100 secured to the igniter whereby the igniter is urged resiliently against the end-wall 60; the nut member is formed with openings 102 for discharge of cooling air. The pilot fuel injector 72 is located in the member 74 by means of a nut member 108. The igniter assembly projects through the inner wall 128 of the mixer chute 36 so that cooling is necessary. A cylindrical liner 122 is spaced inwardly from the engine casing 22 to define an air-flow passage 120 from which cooling air passes through openings 130 and 132 into the passages 136 and 140 respectively within the igniter casing 54. The air flowing through the passage 136 reverses in direction and flows upwardly through the passage 104 thereby cooling the igniter 46 and then passes into space 96 within the nut 92 finally discharging through outlets 102. The air flowing through the passage 140 discharges through openings 142 at the trailing edge of the casing 54, this air serving to prevent the casing 54 from holding the flame caused by burning of the re-heat fuel and air mixture. A scoop member 134 is disposed around the casing 54 in the air-flow passage 120 so as to collect air for flow through the openings 132.
Patent GB-609133-A (GB)
Title: Improved dielectric compositions
IPC: H01B3/22
Filed: 1946-03-06
Abstract: 609,133. Impregnating-compositions for electric insulation. BRITISH THOMSONHOUSTON CO., Ltd. March 6, 1946, No. 6993. Convention date, March 10, 1945. Addition to 571,498. [Class 140] A dielectric composition suitable for impregnating capacitators consists of a hydrogenated vegetable oil with minor amounts of an aromatic sulphone, a chlorinated diphenyl and betachlor-anthraquinone.
Patent GB-589217-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D15/02
Filed: 1945-03-20
Abstract: 589,217. Centrifugal pumps. MATHER & PLATT, Ltd., and PENNINGTON, R. March 20, 1945, No. 7010. [Class 110 (i)] [Also in Group XXIX] A byepass to a centrifugal pump is opened when the temperature difference between inlet and outlet is too great. The byepass is controlled by a valve h with inlet and outlet pipes i, j. The valve rod m and the valve casing f are, respectively, secured to expansion tubes k, a which are anchored to flanges k<1>, b. Water from the pump delivery flows in at d, passes through the pipe k and is evacuated through a central pipe o. Water from the pump inlet passes from pipe r through the pipe a to an outlet q. The outer wall of the pipe k is covered with a heat-insulating material p. Increased delivery temperature, due, it may be, to a reduced delivery quantity, causes the tube k to expand relative to the tube a and the valve h is opened. Passage through the tube a may be obstructed by baffles secured between the tubes a, k and serving also to strengthen the tubes.
Patent GB-735380-A (GB)
Title: Improvements in ventilating devices
IPC: F24F7/00
Filed: 1953-03-13
Abstract: 735,380. Ventilators. RICHALET, P. March 13, 1953 [March 27, 1952; Oct. 14, 1952; Feb. 23, 1953], No. 7024/53. Class 137. The invention relates to devices for ventilating rooms, vehicles or for evacuating the products of combustion of heating or cooking apparatus. As shown, a pair of concentric apertures 41, 52 are made in a wall 40 to accommodate a piece 42 having a cylindrical outer portion 45, a toroidal bent portion connecting to a short cylindrical portion 44, and a cylindrical conduit 51, a cylindrical piece 43 being provided between portions 44, 45, being nearer to portion 44 so as to form a passage 46 opening into a chamber 48. Two or more radial partitions such as 55 may be provided. A frusto-conical extension 56 is carried by the external edge of piece 43 and a circular baffle 58 supported by a cylindrical grid 59 is provided opposite the inlet 57 and outlet 49. A baffle is provided in conduit 51 comprising a conical piece 60 coaxial with conduit 51 and supported by the partitions such as 55, and a frusto-conical partition 62 secured by its larger base to the inner wall of conduit 51 and having a cylindrical extension 63 on its smaller end. Several such baffles may be mounted in conduit 51.
Patent GB-1223152-A (GB)
Title: Improvements in or relating to spreading discrete particulate material
Inventor: GRINDROD JOHN
IPC: B27N3/14
Filed: 1968-02-13
Abstract: 1,223,152. Chip board. TATE & LYLE Ltd. 9 May, 1969 [13 Feb., 1968], No. 7024/68. Heading C3N. [Also in Division D1] A board formed of bagasse fibres or wood chips or shavings is made by feeding the fibres or chips plus a curing agent on to rotating brushes 7 which pass over sieves 8. The finer material 9 passes through the sieves and forms the upper and lower surfaces of the board, and the coarser material 10 passes over the sieves and forms the central portion of the board.
Patent GB-744679-A (GB)
Title: Improvements in or relating to bonding dissimilar rubbery materials
IPC: C08J5/12
Filed: 1953-03-13
Abstract: Rubbery material of low unsaturation containing a vulcanizing agent is united to rubbery material of higher unsaturation containing a vulcanizing agent by (1) coating the first material with a solution or dispersion of a copolymer made by low temperature polymerization using a Friedel-Crafts catalyst of 100 parts isobutylene and 20 to 400 parts of a diolefin containing 4 to 6 carbon atoms, e.g. butadiene, isoprene and dimethylbutadiene containing vulcanizing and, if desired, filling agents, (2) coating the second material with a similar solution or dispersion of a copolymer similarly made from 100 parts of isobutylene and 400 to 750 parts of butadiene, (3) allowing the cements to partially dry, (4) placing the coated surfaces together and (5) heating to vulcanize the whole, e.g. at 300 DEG  C. for 30 minutes. The low unsaturation material (Wijs iodine number 1 to 50) may be a low-temperature copolymer of a major proportion of an iso-olefin and a minor proportion of a diolefin.  Suitable higher unsaturation materials (Wijs iodine numbers up to 451) are the emulsion polymers of butadiene alone or with styrene or acrylonitrile, and natural rubber.  The cements may comprise fillers and vulcanizing agents, e.g. zinc oxide, carbon black, red lead oxide, sulphur, tetramethylthiuram disulphide, p-quinone or p-p1-dibenzo-quinone dioximes.  Suitable solvents are benzene, toluene, hexane and chlorinated hydrocarbons.  The process may be applied to the manufacture of tyres, using different rubbery materials in the sidewall and tread, cables and power transmission or conveyer belts.
Patent GB-126119-A (GB)
Title: Thread Controlling Mechanism.
Inventor: FAIRWEATHER WALLACE
IPC: D05B63/00
Filed: 1918-04-27
Abstract: 126,119. Fairweather, W., (Singer Manufacturing Co.). April 27, 1918. Button-hole sewing-machines; loop -stitching.- In overedge stitching machines, a device is provided for preventing the formation of a stitch during the initial needle thrust at the beginning of an operation to ensure the initial stitch being formed at the underside of the work. The invention is described as applied to a buttonhole sewing-machine having stitch-forming devices of the kind described in Specification 15049/15. The looper thread is adapted to be acted on between the guide-pin 53 and slot 55 by a finger 69 carried by one arm 66 of a lever pivoted at 65 and acted on by a spring tending to move it downwardly. Normally the finger 69 is held in a clearance slot 54 above the thread, by an arm 67 of the supporting lever engaging a shoulder 73 on a detent lever 71 actuated by a spring. The detent 71 is lifted by a, finger 95 on the slide 85 carrying the buttonhole-cutting devices as described in Specification 9459/12, and the lever 66 falls into contact with a cam 74 on the looper-actuating shaft. The cam comprises a semicircular portion concentric with the shaft and a straight diametrical portion. During the initial stitch-forming cycle, the lever 66 travels along the straight portion of the cam, and the finger 69 takes thread from the looper and prevents the formation of its initial loop. The concentric part of the cam then returns the lever with its arm 67 in engagement with the detent, the shoulder 73 of which is inclined to lift the lever 66 out of contact with the cam. The thread passes a nipper device 43 which is opened periodically against a spring by a lever 49 actuated by a flat surface on the hub 18 of the rock lever 17 through which the looper and threaded lower needle receive their movements from the shaft.