baber/WOPTO huggingface dataset:
Patent GB-927790-A (GB)
Title: Foamed resins and methods of manufacturing them
IPC: C08J9/06
Filed: 1959-06-18
Abstract: A fluid composition comprising polyvinyl chloride, a plasticizer, an oxygen producing compound and an oxygen adsorbing compound (both defined) is heated to above 200 DEG F. to liberate oxygen followed by heating to above 350 DEG F. to fuse the cellular product.  Preferred proportions are given.  Specified oxygen producers are alkali metal (e.g. sodium) and alkaline earth metal perborates and chlorates, whilst the oxygen adsorbers are barium sulphate, rosin coated chalk, borax, silica and carbon black. Plasticizers can be monomers, polymers or their mixtures and are exemplified.  Optional ingredients are pigments, e.g. ferric oxide, silicones-for cellular uniformity, and an acidic substance, e.g. a metal hydrogen phosphate for improving the foam structure.ALSO:Cellular polyvinyl chloride, is obtained by mixing a fluid composition comprising polyvinyl chloride, a plasticizer, an oxygen producing compound and an oxygen adsorbing compound (both defined), heating to a temperature greater than 200 DEG F. to liberate oxygen followed by heating to above 350 DEG F. to fuse the product.  Preferred proportions are given together with suitable ingredients.  Specified oxygen producers are alkali metal (e.g. sodium) and alkaline earth metal perborates and chlorates; whilst the oxygen adsorbers are barium sulphate, resin coated chalk, borax, silica and carbon black.  Plasticizers can be monomers, polymers, or their mixtures and are exemplified.  Optional ingredients are pigments e.g. ferric oxide, silicones for cellular uniformity, and an acidic substance e.g. a metal hydrogen phosphate, for improving the foam structure.
Patent GB-1027694-A (GB)
Title: Closed body for road and rail vehicles
IPC: B61D17/04
Filed: 1963-05-27
Abstract: 1,027,694. Road and railway vehicle bodies. R. TALBOT. May 27, 1963 [June 2, 1962], No. 21003/63. Headings B7B and B7L.  A road or rail vehicle for goods or passenger traffic, e.g. a refrigerator wagon, has a closed body 10, Fig. 1, consisting of a plurality of single prefabricated ring sections 21, 20 . . . 20, 22 arranged in succession in the longitudinal direction of the body and braced together, each ring section having walls, e.g. 34, 35, Fig. 6 (not shown) of sandwich construction forming together with members, e.g. 33, 33 built into their end frees a cell which is closed on all sides and comprises a longitudinal portion of the complete body, the portion forming the side walls, the roof and the floor of the body, the ring sections being braced together by means of ties 30a, 30b, Fig. 1, that are located outside the walls or ties 23, Fig. 6 (not shown) within the thickness of the walls, act in the longitudinal direction of the body and are united via end members 31 to an undercarriage 11 to form a self-supporting whole. The ties 30a, 30b are interconnected by vertical members 30c, 30d which may constitute door posts or serve for fitting window frames. The members 33 engage with the interpositioning of elastic members 39 or 40, Fig. 7 (not shown) and support tubes 36 through which pass the tension rods 23. When applied to railway coaches the body may be on an underframe having two end entrance sections or on separate end entrance sections as described with reference to Figs. 8 and 9 (not shown). The walls 34, 35 may be of any preferred combination of steel, light metal, synthetic plastic or the latter reinforced with fibre-glass.
Patent GB-640657-A (GB)
Title: Valve amplifying circuit
IPC: H03F1/50
Filed: 1947-08-01
Abstract: 640,657. Valve-amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. Aug. 1, 1947, No. 21025. Convention date, June 8, 1946. [Class 40 (vi)] In a direct coupled amplifier the plate circuit of one stage is directly coupled to the grid circuit of the succeeding stage by a source of unidirectional potentional designed to bias negatively the grid of the succeeding stage, the said source having a high impedance with respect to ground and comprising a highfrequency oscillator and rectifying circuit. As shown, the valve 1 is supplied with plate potential through the resistance 3 and is coupled to the grid of valve 2 through condenser 4. The bias potential is applied across the condenser 4 from a circuit which includes a rectifier, a smoothing filter 12, and a coupling coil 10 loosely coupled to the coil 9 of the oscillator, and by this means and the use of small components the capacity to earth of the biassing circuit is made comparatively low. The frequency of the oscillator is preferably above the highest frequency to be passed through the amplifier. Additional biassing circuits may be provided for other stages by coupling further coils to the coil 9 of the oscillator.
Patent GB-774202-A (GB)
Title: Improvements in or relating to barrel springs, intended in particular for the watch making
IPC: G04B1/14
Filed: 1954-07-20
Abstract: 774,202. Making springs. THIEBAUD, H. July 20, 1954 [Aug. 15, 1953], No. 21173/54. Classes 83 (2) and 83 (4). Altering physical structure.-A barrel spring made of piano wire for use in watches has a heterogeneous structure and the compression-hardening of its constituent material is more pronounced at the surface than in the centre so as to produce, when subjected to a bend-andbreak test, a break exhibiting at least one splinter which peels off from the rest of the spring in the form of a film whose tear surface is larger than the cross-section of the spring. The compression hardening is effected by rolling, hammering or shotting. The break exhibits a central zone 3 revealing a normal fairly clean break and on either side splinters 4. The splinter may form a bridge 5 connecting the broken spring portions 6 and 7 (Fig. 4). In an embodiment a steel wire of 0.4 mm. diameter is subjected to twelve rolling operations to increase the Vickers hardness from 500 DPH to 715 DPH. Before or during rolling the spring is tempered at 220‹ C. for 30 minutes to modify its physical properties. Alternatively the surface of the spring may be subjected to slight grinding or electrolytic disaggregation. The spring is highly resistant to fatigue and corrosive chemicals. Specification 766,799 is referred to.
Patent GB-860083-A (GB)
Title: Apparatus for the continuous administration of gases and fluids intravascularly
IPC: A61M5/142
Filed: 1959-06-22
Abstract: 860,083. Surgical injection apparatus. MOELLER, W. June 22, 1959 [Aug. 25, 1958], No. 21256/59. Class 81 (2). An apparatus for introducing a fluid, such as oxygen, and a liquid medicament into a patient has automatic means for determining the timing and quantity of the injections. A constantspeed electric motor 5 drives a compressible tube type of pump 3 so as to draw either oxygen, or liquid medicament 32 through a two-way cock 20, and supply it to the patient through a tube 11. The shaft 9 also drives a wheel 21 on which is mounted a roller 25, on a lever arm 22, and this roller runs along a curved surface on a plate 16 carried by a member 26. This is consequently swung about its pivot 18, against a spring 30, and a rack 19, at its lower end, rotates the cock of the plug 20 and, for a short interval, the pump receives medicament 32 instead of oxygen. Adjustment of the ratio between the intervals of oxygen and medicament is made by the setting of the plate 16 on the member 26. A contact-actuating pressure-gauge 12 is connected with the outlet tube and is used to stop the driving-motor if the pressure reaches a predetermined level. A non-return valve 14 may be fitted in the outlet tube and if automatic actuation of the valve 20 is not desired, the lever 22 is moved away from the stop 24 so that the roller 25 does not engage the cam surface.
Patent GB-168052-A (GB)
Title: Improvements in dust caps for tyre valves and the like
IPC: B60C29/06
Filed: 1921-08-10
Abstract: 168,052. Schrader's Son, Inc., A., (Assignees of Kraft, H. P.). Aug. 23, 1920, [Convention date]. Dust-caps for tyre valves. -A dust-cap for tyre valves is formed of two longitudinal sections C, D connected together by outside flanges S joined to a continuous foot portion B by similar flanges. The flange F on the cap portion extends outwardly and is doubled back upon itself and is held against an outwardly directed flange G on the foot portion by an inwardly directed flange H on the foot portion, all the parallel. The foot portion is internally threaded to screw on to the valve casing or to a threaded bush M formed on the rim nut N. The flange H is formed with recesses to accommodate the flanges S and strengthening-ribs E and so prevent relative rotary movement. Specification 157,170 is referred to.
Patent GB-1520724-A (GB)
Title: Vacuum-type circuit interrupter
IPC: H01H33/66
Filed: 1977-05-20
Abstract: 1520724 Copper-based alloy TOKYO SHIBAURA ELECTRIC CO Ltd 20 May 1977 [28 May 1976] 21351/77 HeadingC7A [ Also in Division H 1] A vacuum circuit breaker has a region of at least one contact element formed from an alloy consisting of 4À0-9À4% Al, 0À5-3À5% Be, 0À1-10% of at least one metal selected from Bi, Te, Se, Sb, Mg or Pb with optionally 1-20% Ni or 0À1-5À0% Fe and/or Co, with Cu constituting the balance.
Patent GB-166817-A (GB)
Title: Alloys
IPC: C22C9/00
Filed: 1920-07-15
Abstract: 166,817. Kosugi, T. July 15, 1920. Alloys.-An alloy consists of 75-90 per cent of copper, 1-6 per cent of iron, 2-7 per cent of nickel, and 7-12 per cent of aluminium.
Patent GB-309563-A (GB)
Title: Improvements in or relating to change-speed devices
IPC: F16H3/66
Filed: 1928-07-24
Abstract: 309,563. Backer, J. de. April 14, 1928, [Convention date]. Variable-speed gearing comprises a primary epicyclic train 2, 3, 4, 6, Fig. 4, connecting aligned driving and driven shafts 1, 7 and a secondary train 17, 11, 18, the planets 11 of which are supported on the same carrier structure 10 as the planets 3, 4. There is a solid high speed, a low speed through the primary train when carrier 10 is held fast, and an intermediate additive speed when the carrier 10 is driven by the secondary train. A one-way device 26 prevents gear 18 from turning backwards relatively to a fixed frame 27. Gear 18 is connected through drum 31 and disc 23 to sleeve 33. Gear 17 is fast on an intermediate sleeve 19. A one-way device 21 prevents gear 17 from turning backwards relatively to drum 31. There are nested plate clutches 36, 38, 40 which connect a driving fly-wheel 45 in succession and collectively to the shaft 1 and to the sleeves 19, 33. When a pedal acting on a control sleeve 46 is released, springs bring these clutches simultaneously into action and the gearing turns solid. When the sleeve 46 is moved one step, clutch 40 is released and drum 31 is held bv one-way device 26. Gear 17 causes planets 11 to roll on anchored gear 18 so that the drive of the two trains is superposed. Further movement of sleeve 46 disengages clutch 38, whereupon one-way device 21 anchors gear 1'7 also, so that train 17, 11, 18 is immovable, and the planets 3, 4 turn on fixed pivots. This gives lowest speed. A reversing train 48, 49, 51 is shown on the right. A sleeve 56 feathered on a sleeve projection of the carrier drum 54 haa two sets of dogs for engaging a rotary flange for forward driving, and a fixed bracket for reversed driving. In a modification, the secondary train has three spur elements. In another modification, this train has stepped bevel planets.
Patent GB-517298-A (GB)
Title: Improvements in and relating to arc-extinguishing tubes for electric circuit breakers
IPC: H01H33/76
Filed: 1938-07-19
Abstract: 517,298. High - tension switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 19, 1938, No. 21448. Convention date, July 19, 1937. Addition to 476,368. [Class 38 (v)] [Also in Group IV] An arc-extinguishing tube having an inner wall capable of yielding arc-extinguishing gas due to the heat of the arc produced on separation of the contacts, comprises the oxalic acid derivative oxamide embodied as filling material in a carbamide. alkyd, or other artificial resin of which the tube is basically constructed. Oxygen yielding compounds such as commercial magnesium or other metal peroxide can be added to the resin. The walls of an insulating piece coaxially arranged within the tube can be similarly made. Specification 467,496 is referred to. The Specification as open to inspection under Sect. 91 states that any amide or diamide of a polybasic acid can be embodied. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1327676-A (GB)
Title: Track-registration process
IPC: C25D5/36
Filed: 1971-04-19
Abstract: 1327676 Etching GENERAL ELECTRIC CO 19 April 1971 [9 Feb 1970] 21511/71 Heading B6J To increase the rate at which damage tracks in an irradiated material are etched with respect to the surrounding undamaged areas, the material, prior to etching, is exposed to electromagnetic radiation having wavelengths less than 4000 angstroms while submerged in a liquid containing free oxygen. The radiation may be U.V., gamma or X-radiation. The material may be a polyester resin or a cellulosic resin. The etchant may be sodium, potassium, lithium or ammonium hydroxide, chromic acid, potassium permanganate, potassium t - butoxide, tetrapropyl ammonium hydroxide or mixtures thereof.
Patent GB-636232-A (GB)
Title: Polymerisation of vinyl halides
IPC: C08F14/06
Filed: 1947-08-07
Abstract: Vinyl halides such as vinyl chloride or bromide are polymerized in the presence of up to 5 per cent of a compound from the lower oxides of sulphur, the corresponding acids, acid chlorides and other derivatives of these oxides or acids, e.g. sulphur monoxide or dioxide, sulphurous acid, thionyl chloride, alkali metal sulphites and bisulphites, and water soluble sulphoxylates and dithionites. Minor proportions of vinyl acetate, chloracetate, formate or cyanide, vinyl methyl ketone, vinylidene chloride, methyl acrylate or methacrylate, and styrene may be present.  The process may be carried out in bulk, solvent, or in aqueous emulsion when sodium oleate or myristate, sodium lauryl sulphate, a mixture of gelatine and sodium isopropyl naphthalene sulphonate, sodium bicarbonate or metasilicate, lead acetate, and heavy metal complex compounds such as sodium ferri pyrophosphate, or ferrous ferric lacto phosphate may be present. Initiators such as dibenzoyl peroxide may be used in conjunction with the oxysulphur compound.  The polymers obtained are only slightly soluble in acetone or methyl ethyl ketone, but may be plasticized with tricresyl phosphate.  Specification 515,196 is referred to.
Patent GB-479443-A (GB)
Title: Improvements relating to cavity wall constructions
IPC: E04B1/41
Filed: 1936-08-05
Abstract: 479,443. Cavity walls; bricks. HASTEWELL, R. E. Aug. 5, 1936, No. 21534. [Classes 20 (iv) and 87 (i)] A cavity wall is constructed from bricks of a known kind so arranged that their ridged edges form the sides of the cavity, the ridges having intimate contact with the plain faces of adjacent bricks to form coplanar portions of said cavity sides and to isolate from the cavity the recesses containing the binding mortar, the recesses of consecutive bricks in a course jointly forming continuous mortar channels which extend to and are exposed at the outer faces of the walls. The brick is of the kind in which a bedding face is recessed. the recess extending from near one vertical face right across the remainder of the brick so that the portion which is left upstands as a narrow ridge 10. Spacing studs 11 or the like, upstanding to the depth of the ridge, may be provided in the recess. Gaps 12 may be provided in appropriate bricks 13, Fig. 4, to accommodate wall ties 14. Alternatively, one of the bricks may be inverted as at 15, Fig. 5. Bricks with the ridge 10 along the short edge may be arranged as headers to form one wall 17, Fig. 6, of the cavity, the other wall 16 being formed of stretchers with the ridge along the long edge. Alternatively, the headers of the wall 17 may be replaced by stretchers 19, Fig. 7, and bricks 20 having studs 21 but no ridge. Specification 429,100 is referred to.
Patent GB-585766-A (GB)
Title: Improvements in the manufacture of biguanyl aromatic compounds
IPC: C07C309/51
Filed: 1944-11-03
Abstract: 2-Biguanyl-5-naphthol-7-sulphonic acid and 2-biguanyl-8-naphthol-6-sulphonic acid are obtained by heating 2-amino-5-naphthol-7-sulphonic acid or 2 - amino - 8 - naphthol - 6 - sulphonic acid respectively with dicyandiamide in the presence of, as reaction medium, a tertiary base which is substantially anhydrous. Specified bases are pyridine and dimethylaniline.  In examples, dicyandiamide is heated with: (1) 2 - amino - 5 - naphthol - 7 - sulphonic acid in the presence of excess of pyridine under reflux. The product is conveniently obtained as the sodium salt; (2) 2-amino-8-naphthol-6-sulphonic acid as in (1).
Patent GB-801365-A (GB)
Title: Improvements in a method for the controlled cooling of strip metal
IPC: C21D9/56
Filed: 1956-08-27
Abstract: 801,365. Cooling metal strip. SURFACE COMBUSTION CORPORATION. Aug. 27, 1956 [Aug. 26, 1955], No. 21560/57. Divided out of 801,362. Class 72 [Also in Group XII] In the apparatus for continuously annealing strip metal described in Specification 801,362, improved convection cooling is obtained by supplying water as a fine mist to the cooling gas. Water supplied by a pipe 144 passes to the heat exchanger 142, and also by pipe 147 to a pump 148 which supplies an atomizing nozzle 149 in the pipe 65 leading said cooling gas, e.g. flue gases, to the plenum chamber 41.
Patent GB-1040458-A (GB)
Title: Improvements in or relating to coin return apparatus
IPC: H04M17/02
Filed: 1963-05-30
Abstract: 1,040,458. Coin-freed apparatus. WESTERN ELECTRIC CO. Inc. May 30, 1963 [June 28, 1962], No. 21613/63. Heading G4V. Apparatus for receiving returned coins from a coin-freed machine and making the coins available to a customer comprises a housing 15 having true guide means 32 for guiding returned coins to a receptacle portion 18 and an apparent but false guide means 31 connected to the receptacle portion. The invention is designed to defeat the practice of persons who stuff the return coin channel with material to block the return of coins to the legitimate customer and and then come later to collect the coins. The housing may be fitted to a telephone housing 11 by a flange 14 and a bolt 23 so that coins to be returned can fall down the shoot 32 into the receptacle 18 whence they can be picked-up by the customer after pushing open a door 13. The door, which is pivoted about a pin 28 and counterbalanced by a weight 20, has projections 26 which mesh with arcuate grooves 24 at each side of the housing and a lower lip 19. Obstructing material placed in the apparent but false coin shoot 30 has no effect on the operation of the apparatus.
Patent GB-229716-A (GB)
Title: Improvements in or connected with warp tensioning devices for looms
IPC: D03D49/06
Filed: 1923-08-27
Abstract: 229,716. Brigg, T. H. Aug. 27, 1923. Warp beams; letting- off warps; warps, tensioning and guiding.- Feeler or indicating mechanism acted upon by the warp at a point not affected by the varying diameter of the warp on the beam, and operated by the warp only at a determined portion of each shedding cycle controls doubleacting intermeshing mechanism to vary tne braking effect on the warp beam or to vary the speed of let-off where a positive let-off motion is used. The feeler mechanism may comprise a lever 40, Fig. 7, controlled by springs 45 and connected to a hooked rod 43 passing beneath a rod 44 acted upon by the warp at a point just behind the shed. The lever 40 moves as the warp tension varies and actuates a rod 42, which controls intermeshing mechanism A. To ensure the feeler mechanism being operated intermittently only, it is locked against operation at the moment of beating-up by a movable clamping member 47 co-operating with a fixed block 46 to clamp the rod 42. The jacks of the shedding motion may be utilized to furnish this intermediate warp tension feeler mechanism. The intermediary mechanism may comprise two free wheel sprockets 7, 8, Fig. 2, mounted on a shaft 1 and adapted to be engaged by one or the other or neither of two pawls or actuating-members 9<1>, 10<1> on connected oscillating levers 9, 10, forming an enclosing, dirt-proof casing for the sprockets. The levers 9, 10 have an extension 11 whereby they are oscillated from some part of the loom. When the warp tension varies from a certain predetermined amount, a clutch fork 12 controlled by the feeler mechanism moves the levers 9, 10 axially so that one of the two pawls 9, 10 engages with its respective sprockets and the shaft 1 is turned in one direction or the other. In a modification, the intermediary mechanism comprises two ratchet-wheels with oppositely-directed teeth, two driving-pawls and a shield. The shaft 1 may operate by worm and rack gearing a weighted lever 14, Fig. 3, so as to alter the position of a bowl 15 on a lever 16<1>, 16<2> pivoted at 17 and carrying guide-bowls 23, 26 for a rope 18 passing round bowls 19, 19<1> carried by the end pieces of ropes, clips or chains 20, 20' passed round the warp beam ruffle. The shaft 1 may be used to vary the position of the weight on a let-off motion of the worm and worm wheel or positive type so as to compensate for the varying mechanical leverage of the pull of the warp as the warp beam empties. The mechanism may also be used otherwise in let-off motions to vary the rate of let-off. In addition, it may control the position of the warp beam, in case no back rail is used, the beam shaft 33, Fig. 5, being carried by arms 34 on a shaft furnished with a toothed quadrant 36 driven by a worm 13<a> fast on a shaft driven from the intermediary mechanism, whereby the angle of the line at which the warp passes to the healds may be maintained constant as the beam empties.
Patent GB-359455-A (GB)
Title: Improvements in and relating to furniture
IPC: E06B3/44
Filed: 1930-07-17
Abstract: 359,455. Tables; cabinets. FORD, G. W., (trading as FORD & SON, W.), Racine Works, Garden Street, Sheffield. July 17, 1930, No. 21620. Drawings to Specification. [Classes 52 (i) and 52 (iii).] The sliding door described in Specification 344,791 is adapted for use generally on sideboards, cabinets, or like articles. The adaptation to a dinner-wagon is described, the wagon having an extensible top.
Patent GB-696341-A (GB)
Title: Improvements in electrical distribution boards
IPC: H02B1/21
Filed: 1951-09-14
Abstract: 696,341. Switchboards. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 14, 1951 [Sept. 14, 1950], No. 21651/51. Class 38 (v) [Also in Group XXXVI] A distribution board comprises a pair of spaced parallel busbars 10, 11 having lateral extensions 10<SP>I</SP>, 11<SP>I</SP>, respectively, provided with upturned ends 22, 23 forming contact blades adapted to be engaged by circuit-breakers, to be connected to the board. The extensions 10<SP>I</SP>, 11' overlap and are separated by an insulating piece 24, and the arrangement is such that blades 23 lie between blades 22 in a line parallel to the busbars. A further central busbar 12 may be provided carrying a conducting member 19 having blades 20 which lie outside the blades 22, the member 19 being separated from the extension 10<SP>I</SP> by an insulating piece 21. The busbars have offset ends 13-15 whereby they are connected to the supply wires and are secured to a pair of insulating blocks 16 mounted on a support plate 17. Edges 25 of the plate 17 have catch members 26 to assist in mounting the circuitbreakers. To mount a circuit-breaker 27 a lug 28 at at one end thereof is engaged in a catch member 26 and the breaker is swung on the catch until a contact jaw 29 on the other end engages one half of a corresponding blade 20, 22 or 23. Two circuit-breakers 27 may be mounted side-by-side, their contact jaws engaging a common blade. In an alternative construction, the busbar assembly is embedded in a body of insulating material in the manner disclosed in Specification 696,340.