baber/WOPTO huggingface dataset:
Patent GB-272593-A (GB)
Title: Improvements in and relating to alternating current distribution systems
IPC: H02B1/24
Filed: 1926-03-15
Abstract: 272,593. British Thomson-Houston Co., Ltd., and Haigh, F. A. March 15, 1926. Installation conductors, arrangement of. - Bus-bars and like heavy alternating- current interconnecting conductors in power-stations and the like are Sub-divided into parallel branches and the lead and return branches interleaved so that magnetic effects are minimized. The subdivision, may be effected through transformers with separate secondaries feeding the branches. Fig. 2 shows a threephase arrangement each phase. 1, 5, 9 being subdivided into three parallel conductors such as 2, 3. 4, one of each phase being associated with one of each of the other two phases forming three groups such as 2, 6, 10. The conductors feeding the diametric phases of a rotary converter may be similarly grouped. Specifications 5624/84 and 200,194 are referred to.
Patent GB-235646-A (GB)
Title: Improvements in, or relating to head formation (frothing) of liquids
IPC: B67D1/04
Filed: 1924-03-20
Abstract: 235,646. Baker, J. L. March 20, 1924. Dispensing liquids. - Beer and like aerated beverages are revivified by the addition of a small quantity of the same beverage which has been supergassed by means of a sparklet. A container b charged with the supergassed liquid is connected by a pipe d to the outlet 15 of a beer engine and may be discharged by means of mechanism connected with the handle f, or (as shown) by means of a treadle e.
Patent GB-727626-A (GB)
Title: An oil well pump
Inventor: REESE RAYMOND HENRY
IPC: F04B47/00
Filed: 1953-03-16
Abstract: 727,626. Cleaning deep well pumps. FILLMORE IMPROVEMENT CO. March 16, 1953 No. 7225/53. Class 102 (1). To remove wax precipitation or other forms of fouling in a deep well pump, the sucker rod 30 is made hollow and connected by a flexible tube 34 to a pump 36 supplying hot or cleansing liquid to the affected area. The sucker rod is formed in sections with cupped ends that are threaded to couplings 46. At the point where it is required to discharge the liquid, a coupling 50 is provided with radial bores 60 and a non-return, spring- loaded ball valve 66. The portions 56 of the sucker rod below the coupling 50 is solid.
Patent GB-564869-A (GB)
Title: Improvements in or relating to electric resistance heating elements
IPC: H05B3/42
Filed: 1943-05-07
Abstract: 564,869. Electric resistance heaters. RUBERT, M. P. May 7, 1943, No. 7228. [Class 39 (iii)] A heating resistance comprises a ceramic-rod a having two holes containing a spiral resistance b which crosses from one hole to the other in a groove c filled with cement. A mica disc g is added, and a brass cap f applied over the end of the rod. The leads d are sealed by cement i and insulated by beads h.
Patent GB-794912-A (GB)
Title: Improvements in or relating to single-start or multiple-start hobs
IPC: B23F21/16
Filed: 1955-03-11
Abstract: 794,912. Milling-cutters. LINDNER, W. March 11, 1955 [March 12, 1954], No. 7288/55. Class 83 (3). A single-start or multi-start hob, which may be of conical form, for cutting gears, splines, &c., comprises cutting-teeth 1-26 grouped in rows along the helical threads B, E of the hob, the distance between consecutive teeth of a group on the same thread (e.g. teeth 1-6 on thread B), being substantially equal, and the gap between the first tooth of one group (e.g. tooth 7) and the last tooth of the preceding group on the same thread (tooth 6) being equal to from one to five times the average helical pitch of the teeth in all the groups, the gap being measured, along the pitch-cylinder of the hob, between the nearest adjacent points on the teeth 6, 7. The twostart hob of Fig. 5 has three groups of teeth 1-6, 7-12, 13-26, on each thread B, E provided on toothed rings L, M, N, the first and second groups effecting rough-cuts and the third group a finishing-cut. The height of the teeth in groups 1-6, 7-12 increases from the first to the last tooth in the group, and the height of tooth 7 is less than that of tooth 6, teeth 13-26 being of constant height. Succeeding teeth of the first and second groups 1-6, 7-12, cut alternate sides of a tooth-space, and the cutting edges are relieved, Fig. 7, and notched at H to break the chips. The finishing- teeth 13-26 operate on both flanks of the tooth spaces, and their width increases over the leading-teeth. A different cutting angle is provided on each group of teeth, and the groups may be sharpened in stages on their own supporting sleeve 33, Fig. 8, in the case of a builtup hob with toothed rings 30-32. In this event, rings 30, 31 are removed to enable the teeth on ring 32 to be sharpened, and the latter ring removed and rings 30, 31 replaced so that these may be sharpened simultaneously. A key 41 on each of the rings 30, 31 engages in a keyway 40 in the sleeve 33 to locate the rings during the grinding of one flank angle, and one of the rings is re-positioned to engage its key in a keyway 39, Fig. 9 (not shown), during the grinding of the other flank-angle. The keys 41 are engaged in the keyways 39, 40 during operation of the cutter.
Patent GB-577250-A (GB)
Title: Improvements in and relating to methods of preparing tetrakis-2-chloroethyl silicate
IPC: C07F7/04
Filed: 1944-04-19
Abstract: Tetrakis-2-chloroethyl silicate is prepared by treating silicon tetrachloride with ethylene oxide under the influence of heat, preferably in the presence of an acid catalyst.  In examples: (1) ethylene oxide is passed slowly into a flask containing silicon tetrachloride, which is kept refluxing.  After 15 hours when no more reflux takes place, the heat is removed and the stream of ethylene oxide continued for another 15 hours.  The product is finally fractionally distilled; (2) as in example (1) using slightly varying experimental conditions.
Patent GB-674949-A (GB)
Title: Improvements in or relating to the manufacture of corrugated paper board
IPC: B31F1/28
Filed: 1949-03-17
Abstract: 674,949. Compound sheet material; rollers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 17, 1949 [March 20, 1948], No. 7321/49. Drawings to Specification. Classes 42 (ii) and 140. In the manufacture of paper board, a corrugated paper layer has a flat paper sheet, carrying a printed ink impression, cemented to one or both sides by the use of a heated roller, the surface of which is printing-ink repellent. The roller may be coated with a layer of a substance which is liquid and does not volatilize at the operating temperature and repels the ink without being transferred to the paper, e.g. stearic acid, neat's foot oil, paraffin wax or oil and synthetic and natural waxes such as carnauba and lignite, silicones and aluminium, zinc, calcium, or magnesium stearates; alternatively a solid ink-repellent substance may be used, e.g. the roller may be covered with polytetrafluorethylene foil or wholly or partially made of such substance.
Patent GB-715979-A (GB)
Title: Thermostats
IPC: G01K1/18
Filed: 1952-03-21
Abstract: 715,979. Temperature-responsive actuating-elements. SERCK RADIATORS, Ltd., and ROBSON, F. March 4, 1953 [March 21, 1952], No. 7330/52. Addition to 676,123. Class 64(2) In a temperature-responsive actuating- elemerit of the kind described in the parent Specification, the secondary heatexchange surfaces are formed in the cylindrical body a by a ridge in form of a screw thread b or by circumferential or longitudinal ridges.
Patent GB-348755-A (GB)
Title: Improved method of preventing stalk rot in fruit
IPC: A23B7/16
Filed: 1930-03-07
Abstract: Losses or deterioration of fruit and vegetables are reduced or prevented by rendering the cut surface of the stalks impermeable or difficultly permeable or otherwise resistent to moulds and other microorganisms.  The surface of the cut may be treated with sealing materials, e.g. paraffin or other waxes, fats, oils, such as paraffin, cotton seed, linseed, Neats' foot, peanut, palm, or coco nut oils, artificial cellulosic or natural resins, water insoluble soaps, such as an aluminium soap dissolved in a volatile hydrocarbon, or other substances of an oily or wax-like nature, rubber, or mixtures of these substances.  Materials which promote adhesion of the substances to or their penetration into the stalks may also be used.  Thymol or other antiseptic or fungicidal agents may be added to the materials.  The sealing of the cut may also be effected by treating the juice exuding therefrom with coagulants or by application of heat by electric cautery, contact with a hot plate or exposure to a flame.  The penetration of the moulds &c. may also be prevented by treating the cut surface with antiseptics e.g. phenolic antiseptics, boric acid, borates, or salts of copper, mercury, iron, or zinc, the surface of the cut being first prepared to secure adhesion of these agents.  Sealing may also be effected by caps or capsules of cellulosic or similar material which may be treated with antiseptics or fungicides.
Patent GB-339569-A (GB)
Title: Improvements in or relating to friction check devices for doors, windows, and the like
IPC: E05C17/34
Filed: 1930-03-07
Abstract: 339,569. Rigden, L. M. March 7, 1930. Stays. - A folding stay comprises two or more links connected by frictional joints A, B, C, Fig. 3, to one another and to the door-members. At the attachment of a link to a door-member friction discs 6, 7, Fig. 1, are interposed between fixed discs 4, 5 and the end of the link 9. At the joint between two links 9 friction discs 11, 12 are interposed between the ends 10 of the links and between these ends and discs 13. The joint friction can be varied by means of screws 14.
Patent GB-104970-A (GB)
Title: Improved Combined Account and other Form, and Postal Folder or Wrapper.
Inventor: GHEST ROBERT CHEVIN
IPC: B42D15/08
Filed: 1916-05-26
Abstract: 104,970. Ghest, R. C. May 26, 1916. Postal wrappers. - The combined accountform'and postal folder shown in Fig. 1 is so constructed that it can be posted three times, namely the first time to the addressee by halfpenny packet post, the second time back to the original sender by letter post, and the third time to the addressee again by halfpenny packet post. For the first transmission, the address on a flap a is shown through a window b, and tabs c, f are together tucked into the open ends of the folded form. For the second transmission, the address of the original sender is written on the back of the flap a, and the folded form is secured by gummed tabs c, d. For the third transmission, the flap a serves as the front of the folded form, which is secured by tabs g engaging slots h. Two modifications are described which are enclosed in ordinary envelopes during the second transmission.
Patent GB-631819-A (GB)
Title: Improvements in or relating to a method of producing a ceramic body having longitudinal passages
IPC: B28B7/34
Filed: 1947-03-18
Abstract: A ceramic body having narrow longitudinal passages is prepared by dipping into a liquid ceramic composition containing mineralizing, plasticising, and adhesive agents a network, the weft of which is constituted by wooden rods, winding the web into the required form, guiding the ends so as to expose the ends of the rods, heating without access of air, and finally sintering in air.  The ceramic mass may consist of a hard-type porcelain to which may be added titania, or cordierite, and according to examples may contain (a) 33 per cent kaolin, 16 per cent quartz, 16 per cent felspar, 16 per cent talc and 19 per cent titania, (b) 50 per cent kaolin, 25 per cent felspar, and 25 per cent quartz, or (c) 64 per cent kaolin and 36 per cent talc.  This is finely ground and mixed with a shinkage-preventing agent such as a ground, previously-burned mass of the same material. Mineralizing-agents, such as ammonium molybdate, calcium fluoride, or salt in amount from 0.01 to 0.1 per cent, plasticizing-agents, such as ammonia solution or sodium carbonate, in amount from 0.5 to 1 per cent, and an adhesive, such as dextrin, starch, or sulphite lye in amount from 2 to 10 per cent, are added. The web is formed of round, square, or rectangular wooden rods of 0.4-1 mm. in thickness, connected together in parallel relation by textile threads.  The surfaces of the rods at least are impregnated with a water-repelling substance such as paraffin wax, asphalt in solution or emulsion, certain artificial resins such as polyvinyl or polyacrylic resins, or cellulose esters such as nitro or acetyl cellulose.  The web is drawn through the ceramic mass so as to retain a certain amount of the mass and is then rolled into the desired form with or without a central core.  The body is dried, and the ends ground flat thereby exposing the ends of the rods.  The body is then heated in the absence of air to char the rods and is sintered in air so as to burn the rods and produce a coherent body.  The body may be made up by securing together a number of smaller bodies, as by means of a cement composed of water glass, powdered talc, and titania.
Patent GB-1367605-A (GB)
Title: Pretreatment for cold deformation of steel
IPC: C23C22/73
Filed: 1973-02-15
Abstract: 1367605 Phosphating steel surfaces PYRENE CHEMICAL SERVICES Ltd 15 Feb 1973 [15 Feb 1972] 7519/73 Heading C7U A steel surface is prepared for cold forming by (1) pickling in mineral acid (2) treating with an aqueous suspension of 0À1 to 8 g/l of secondary or tertiary manganese phosphate (3) phosphating in aqueous manganese phosphate or manganese-iron phosphate, and (4) coating with lubricant. Step (1) may use 5-25 wt. per cent H 2 SO 4  or HCl, and may be followed by rinsing, e.g. with water; to the suspension of step (2) there may be added 0À1-5 g/l condensed alkali phosphate such as Na 4 P 2 O 7 , or Na 5 P 3 O 10  ; treatment is at room temperature to 60‹ C; step (3) may use a solution to which is added NO 3 <SP>-</SP>, NO 2 <SP>-</SP>, Ni, Co, Cu, F<SP>-</SP> or a complex fluoride; treatment for 1-20 min gives a coating weight of 3-30 g/m<SP>2</SP>; the phosphated surface may be rinsed in water, then weak alkali, e.g. borax, Na 2 HPO 4 , sodium silicate, Na 2 CO 3 , or a suspension of lime; step (4) uses a dry powder, e.g. Na or Ca stearate, or treatment with an aqueous soap followed by drying; the soap may comprise one or more alkali or amine soaps, e.g. Na, K, or triethanolammonium salts of C 10 -C 20  fatty acids in amount 5-50 g/l, and 5-50 g/l of a difficultly soluble metal soap, e.g. salts of said acids with Zn, Mn, Al, Ca, Ba, Mn, or Pb.
Patent GB-633431-A (GB)
Title: Improvements in micrometer gauges
IPC: G01B3/18
Filed: 1947-03-20
Abstract: 633,431. Micrometer gauges. ROBSON, J. March 20, 1947, No. 7658. [Class 106 (ii)] For giving a direct reading, a standard micrometer gauge F has a rod D secured thereto on which is slidably mounted a standard revolution counter C. A gear-wheel E with ten teeth is secured to the first wheel of the counter, and meshes with a gear-wheel A of twenty-five teeth secured to the thimble of the micrometer. An end-plate B of the counter engages a groove in the flange of the wheel A to cause the counter to traverse along the rod D and prevent rotation of the counter about the rod. Rotation of the thimble thus causes the counter to operate and give a direct reading of the micrometer.
Patent GB-1242996-A (GB)
Title: Plasma spraying protective coating on refractory
IPC: C04B41/51
Filed: 1970-02-18
Abstract: 1,242,996. Molten glass-resistant material. CORNING GLASS WORKS. 18 Feb., 1970 [24 Feb., 1969], No. 7693/70. Heading C1M. [Also in Division C7] A refractory substrate, e.g. for use in the manufacture of glass, is coated with Pt or Pt base alloy by plasma spraying. The Pt alloy may contain Rh, Ni, Au, Ir or Pd. The substrate may contain mullite, alumina, zirconia, zircon, magnesia spinel, titania, cassiterite, barium oxide, silica, magnesia, thoria, and chromic oxide. Typical glasses used for testing the coating are (% by weight): (1) 61.4 SiO 2 , 16À8 Al 2 O 3 , 12.7 Na 2 O, 3.6 K 2 O, 3.7 MgO, 0.2 CaO, 0.8 TiO 2  and 0.8 As 2 O 3 , and (2) 79À8 SiO 2 , 12.2 B 2 O 3 , 2À8 Al 2 O 3 , 4.0 Na 2 O, 0À4 K 2 O and 0À8 CaO. The substrate may be an orifice ring.
Patent GB-1365925-A (GB)
Title: Electric fuse units and indicating means therefor
IPC: H01H85/32
Filed: 1972-06-23
Abstract: 1365925 Fusible cut-outs BRITISH INSULATED CALLENDERS CABLES Ltd 23 June 1972 [24 March 1971] 7696/71 Heading H2G A fuse housing 6 is provided with an indicating device comprising a gas discharge tube 1 connected in series with a resistor 2 between a member 8, which contacts, or can be made to contact, a fuse contact 9, and an exposed contact 7 so that when 7 is touched or pressed by an operator an electrical (capacitative) coupling is provided to earth, so that if the fuse contact 9 is live the discharge tube lights. The resistor 2 and lamps may be embedded in a transparent plastics block 3 carried on a base 4 which may form part of wall 5 of the fuse housing or may be resiliently mounted in an aperture therein so that when stud 7 is pressed contact 8 makes connection with fuse contact 9.
Patent GB-672835-A (GB)
Title: Improvements in and relating to electrical heating panels
IPC: F24D13/02
Filed: 1950-03-28
Abstract: 672,835. Two-part couplings. BRITISH THOMSON-HOUSTON CO., Ltd. March 28, 1950 [April 5, 1949], No. 7729/50. Class 38 (i). [Also in Group XI] Electric heating panels 2, 3 (see Group XI), e.g. mounted on a wall 1, are electrically connected by members 21 which comprise copper bars 22 with insulating sleeves 23, 24, the bars 22 slidably engaging between the bifurcated end parts 15, 16 of copper bus-bars, e.g. as 13, one of which extends along each side of each panel and to which the heating element 11 is connected. The members 21 extend through apertures in side walls 9 of the tray-like panels 2, 3, and at the bottom of the lowermost panel the members 21 are clamped at 39 to one or other of the supply lines 27, 28 housed in the raceway 5.
Patent GB-243957-A (GB)
Title: A rat and vermin trap
IPC: A01M23/06
Filed: 1925-03-23
Abstract: 243,957. Bowie, M. C. March 23, 1925. Animal traps. - A liquid baited rat, mouse, or like vermin trap comprises a container 1 having an upper portion provided with a false bottom 4 supported on a central joint 3 adapted to tip in all directions. The joint may be of rubber or may be formed by a ball and socket or a helical spring. In a modification the false bottom is supported from above. The false bottom may be concave, saucer-shaped, ridged or corrugated to receive the liquid bait, which may be supplied by hand or by a siphon or other automatic device. The trap may be formed in sections.
Patent GB-561456-A (GB)
Title: Improvements in aircraft retractable alighting gear
IPC: B64C25/22
Filed: 1941-06-20
Abstract: 561,456. Retractable undercarriages for aircraft. DOWTY EQUIPMENT, Ltd., and SNAREY, G. N. June 20, 1941, No. 7826. [Class 4] An aircraft alighting gear is adapted to be automatically retracted, after a predetermined delay, when the gear is in the unloaded condition. As shown, two telescopic shock-absorbing legs 3, 4 are raised and lowered by jacks 6 supplied with pressure fluid from a pump 25 through a valve 7 controlled by a solenoid 8, the valve being set to cause retraction of the legs when the solenoid is energized and to cause the legs to be lowered when the solenoid is de-energized. The circuits include a switch 14 coupled to the engine throttle so as to close when the throttle is opened up and to open when the throttle is reduced prior to landing. The switch 14 and a push-button switch 18 control a relay switch 15 which closes when its solenoid is energized, after which it remains closed whatever happens to the switch 14, until the switch 18 is opened. The solenoid 8 is in circuit with a switch 20, 21 which, the relay switch 15 being closed, closes after a short time interval determined by a dashpot 22 whenever switches 9, 12 are closed by the full extension of the telescopic legs. The dashpot 22 prevents energization of the solenoid 8 due to momentary closing of the switches 9, 12 while taxying. Momentary opening of the push-button switch 18 de-energizes the relay 15 and the undercarriage is lowered and remains so lowered unless the switch 14 is closed by opening up the throttle. A manually-controlled three-position switch 33 enables the alighting gear to be raised or lowered irrespective of the load on the gear, the automatic action taking place only when the switch is in the position shown. The valve 7 may be of the type described in Specification 544,340. The dashpot 22 may be replaced by an air vane, eddy current brake or clockwork escapement mechanism. Springs 11 accommodate over-travel of the means for actuating the switches 9, 12.
Patent GB-193708-A (GB)
Title: Improvements in electrical massage apparatus
IPC: A61N1/32
Filed: 1922-03-17
Abstract: 193,708. Hodgkinson, T. J. T. March 17, 1922. Electric appliances.-The contact plates 10, 11 of an electric massage appliance are provided at their inner edges with outwardly extending portions 18 against which resilient members 14, attached to the body 1, by screws 15, bear upwardly and inwardly so as to press the plates against an intermediate insulating strip 12 and projecting pins 19 extending therefrom. On the members 14 are arranged projections 20 which engage notches 21 in the plates allowing the removal of the plates and the insulating strip from the appliance by axially sliding the plates. The moulded non-conducting casing 1 contains an induction coil and is fitted with terminals for connection to a source of current and with a switch controlling the secondary circuit. Moulded gripping pieces 22 are secured to the casing. The interrupter comprises a vibrator mounted on a bridge piece extending between the end cheeks of the coil and coacting with a stamped-out contact on a second bridge piece similarly mounted but adjustable at one end.
Patent GB-231497-A (GB)
Title: Improvements in or relating to the destruction of vermin
Filed: 1925-03-25
Abstract: Hydrocyanic acid gas for destroying vermin is liberated by the action of a limited quantity of water on double compounds of anhydrous hydrocyanic acid and anhydrous chlorides of metals such as iron, aluminium, tin, and titanium, or mixtures thereof.  The compounds FeCl3.2HCN and AlCl3.2HCN are specified. The compounds are placed in vessels and warm water is added in the proportion of 90 to 120 per cent of the weight of the compound.