baber/WOPTO huggingface dataset:
Patent GB-923460-A (GB)
Title: A process for the production of highly purified formaldehyde
IPC: C07C/
Filed: 1961-06-01
Abstract: Highly purified formaldehyde is obtained by passing formaldehyde vapours containing water through one or more chambers in which they remain for a total time of at least 5 minutes and in which the ratio of contact surfaces to volumetric capacity is below 0.6cm.-1 and in which the formaldehyde vapours are made to pass repeatedly through zones with temperature gradients across them in these chambers.  The chambers may have rectangular or spherical boundary surfaces.  When more than one chamber is used it is advisable to have the temperature of the first ones higher than that of the later ones.  The formaldehyde vapours are generally introduced into the chambers at a temperature of 30-100 DEG C.
Patent GB-1304217-A (GB)
IPC: C09K11/71
Filed: 1970-04-24
Abstract: 1304217 Calcium pyrophosphate GTE SYLVANIA Inc 24 April 1970 [25 April 1969] 19922/70 Heading C1A y-Ca 2 P 2 O 7  is made by precipitating brushite (CaHPO 4 .2H 2 O) from a solution containing calcium ions and phosphate ions, washing the precipitate to remove impurities, partially drying to give a flowable powder, and heating while maintaining the powder in agglomerationpreventing motion to a temperature that will convert the brushite to γ-Ca 2 P 2 O 7 . The brushite may be dried by centrifugation or filtration and may be heated in an inclined rotating kiln or a fluidized bed. The solution may be of (NH 4 ) 2  HPO 4  and CaCl 2 . If the powder is heated to above 750‹ C., #-Ca 2 P 2 O 7  will be formed, rather than γ-Ca 2 P 2 O 7 .
Patent GB-469261-A (GB)
Title: Improvements in the construction of machines
IPC: B43K19/16
Filed: 1935-10-12
Abstract: Bar-like members and clamping-brackets or lugs are used to build up a "knock-down" frame-work adapted to serve as the frame of pencil-making machinery including a coating or polishing machine, and to support adjustably the various working parts of such machine.  The latter, according to the Provisional Specification, comprises a hopper, a cell for cellulose or other paint and means for discharging pencils from the base of the hopper through the cell.  The hopper comprises two V-like members in parallel planes, the pencils being stacked horizontally between card members.  A reciprocating pair of spring pushers discharge two pencils at each stroke from the base of the hopper over a feed plate to upper and lower grooved feed rollers, by which the pencils are passed through the cell.  The latter has apertures with packing rings in its end walls for the passage of the pencils.  The pencils then fall upon a conveyer belt mounted upon converging spindles.  Specification 5340/05, [Class 117], is referred to.
Patent GB-613799-A (GB)
Title: An electromagnetic switch for lift and other gates
IPC: B66B13/22
Filed: 1946-07-04
Abstract: 613,799. Electromagnetic switches. LEATHWOOD, C. W. H. July 4, 1946, No. 19972. [Class 38 (v)] An electromagnetically-operated safety switch for lifts &c. has the contact portion and the armature mounted on the lift and the operating solenoid a on the lift gate. The armature s is contained in a tube i fixed to a base j. When the lift gate is closed, the solenoid a passes over the tube i and its winding terminals g engage contacts n and push their projecting ends o into engagement with contacts k to which the supply wires are connected through a car switch. When this switch is closed, the solenoid a is energized and the armature s presses a spring-biassed rod t to the left to cause the bridging of two contacts u in the motor control circuit.
Patent GB-478515-A (GB)
Title: An improved method and means for the manufacture of envelopes, bags and similar articles from a continuous web
IPC: B31B19/00
Filed: 1936-07-20
Abstract: 478,515. Making paper &c. bags &c. PIRIE, APPLETON, & CO., Ltd., and WOLFF, H. July 20, 1936, No. 20032. (Class 94 (ii)] Apparatus for preparing a web of paper &c. b for the manufacture of bags, envelopes, of the dry-sealing type, comprises driving means e for the web, two devices c, d for applying the adhesive in stripes upon opposite faces of the web and a series of guide rollers g, about which the web is passed in a succession of convolutions until the adhesive is dried, an air current being employed, if desired, the web being then forwarded to a bag &c. making machine j by rollers h, a loose bight i being preferably arranged in the web. The adhesive stripe carried on the inner face of the web is arranged to overhang the ends of the guide rollers or, alternatively, to register with gaps or grooves formed therein. According to the Provisional Specification, the web may be creased to define certain auxiliary flaps, registered for a printing operation on one or both sides and then fed intermittently so that cutters may operate to remove rectangular portions from each edge. Individual blanks are now severed, gummed on the side flaps, and then fed to and pushed by a reciprocating plunger, through a folding-box. The envelopes with sealing flaps overlying the auxiliary flaps and the back walls are then collected in a magazine. Two or more rows of envelopes may be produced from a single web. Specification 458,886, [Group XV], is referred to.
Patent GB-128501-A (GB)
Title: Improvements in Collapsible Cases.
Inventor: ANDAL OLE MARTIN
IPC: B65D6/16
Filed: 1918-12-04
Abstract: 128,501. Andal, O. M., and Stensvaag, H. Den. 4, 1918. Folding boxes. - In a folding or collapsible case in which the ends are hinged down their centre lines and to strips fastened tc the sides, the lid 4 is hinged to a strip 6 hinged to one of the sides 3 so as to fold between that side and the folded ends 10. The bottom is hinged to the other side and folds between that side and the folded ends. Strips 12 support the bottom when the case is erected.
Patent GB-1281146-A (GB)
Title: Improved carton blank
IPC: B65D5/44
Filed: 1971-04-19
Abstract: 1281146 Cartons KNOLL AG CHEMISCHE FABRIKEN 19 April 1971 [2 Feb 1970] 20158/71 Heading B8P A carton of tubular form folded from the blank shown by securing a flap 7 to panel 5 has score lines 18, 19 adjacent the free edges of panels 3, 4 to stiffen those edges and so prevent the carton deforming during packaging. If flaps 8, 12 and 9, 13 all extend from panel 3 or 4 the score lines 18, 19 are made adjacent the free edges of the panel 3 or 4 not having flaps extending therefrom.
Patent GB-435216-A (GB)
Title: Means for suspending or assuring a gripping fit for nether garments
IPC: A41F9/02
Filed: 1934-07-10
Abstract: 435,216. Wearing-apparel. ANTRIM MANUFACTURING CO., Ltd., and SHIPP, G. A., Maxwell Street, Belfast. July 10, 1934, No. 20178. [Class 141] Means for suspending or assuring a gripping fit for trousers, pants, skirts, and other nether garments comprise a woven webbing a containing spaced elastic cords which is stitched in extended condition to the waist edge of the nether garment b along a meridian line or narrow circumferential zone c so as to leave considerable upper and lower widths of the webbing containing elastic cords entirely free to conform to the person above and below the meridian line or zone of attachment c. The webbing a is stitched either inside or outside to the waist edge of the garment b, and may either be endless, or have its ends reinforced and provided with co-operating fastening means. The lower edge of the webbing is preferably left free from elastic cords so as to give a ruffled effect in wear.
Patent GB-1536443-A (GB)
Title: Chalking resistant titanium dioxide pigment
IPC: C09C1/00
Filed: 1976-05-17
Abstract: 1536443 Alkyd paints containing treated titanium dioxide BAYER AG 17 May 1976 [23 May 1975] 20215/76 Heading C3R [Also in Division C4] A pigmented lacquer, paint, or coating composition comprises at least one aralking- resistant titanium dioxide pigment produced by a process wherein a titanium dioxide pigment is mixed with at least one vinyl polymer comprising one or more polymerized monomers selected from styrene, methylacrylate, ethylacrylate, butylacrylate, methylmethacrylate, ethylmethacrylate and butylmethacrylate, the water content of the resulting mixture being adjusted, if necessary by addition of water, to at least 30% by weight, wherein the latex is coagulated whereby the polymer is applied to the titanium dioxide pigment in an amount such that the polymer content of the resulting product is from 2 to 10% by weight and wherein the resulting product is recovered by separation from the aqueous phase and drying. In the examples the pigments are ground with an alkyd resin.
Patent GB-1473574-A (GB)
Title: Sitosterol esters
IPC: A61P3/06
Filed: 1974-05-08
Abstract: 1473574 Sitosterol ester LABORATORIOS FERRER SL 8 May 1974 [8 May 1973] 20241/74 Heading C2U The invention comprises #-sitosteryl 2-(#- chlorophenoxy)-2-methylpropionate and its preparation from #-sitosterol by esterification with clofibric acid or a functional derivative thereof. Anti-hyperlipemic and anti-hypercholesterolemic compositions for oral administration comprise a carrier and the compound of the invention.
Patent GB-573610-A (GB)
Title: Improvements in or relating to fasteners for bags, cases and other containers
IPC: E05B65/52
Filed: 1943-12-03
Abstract: 573,610. Fasteners. SMITH, F. S. Dec. 3, 1943, No. 20259. [Class 44] The side members 11, 12 of the opening of a bag or other container are connected centrally by a fastener comprising a pair of catches 22 moved by finger pieces 18 and co-operating with eyelets 21 on the member 11. At each end of the members 11, 12 is a catch 23 that is pivoted and biased by a spring 26 to the open position, and also carries an eyelet 28 that co-operates with a pivoted hook 29 connected by a rod 32 to one of the catches 22. When closing the bag, the centre fastener is engaged and the end catches 23 can be moved to grip the members 11, 12 and engage the hook 29, the movement of the hook during this action not being sufficient to disengage the centre catch 22. Both the end catches 23 and the centre fastener can be disengaged by operating the finger pieces 18. The centre fastener may comprise one catch 22 only and both hooks 29 connected to it but arranged so that both are disengaged upon operating the central fastener to open the bag. In the arrangement shown in Fig. 6, both hasps 42 on a case are biased to the open position by springs and held closed by latches 46 that are biased by springs 47 to the closed position and can be moved to the open position by links 50 connected to a central turnbuckle 54.
Patent GB-941324-A (GB)
Title: Improvements in booster-assisted actuating systems
Inventor: SADLER FRANCIS ANTONY DAWSON
IPC: B60T13/24
Filed: 1959-06-13
Abstract: 941,324. Fluid pressure braking systems. GIRLING Ltd. June 7, 1960 [June 13, 1959; Sept. 5, 1959], Nos. 20326/59 and 30395/59. Headings F2E and F2F. A booster assisted actuating system in which a force applied to lever 1 is augmented by a booster 6, has a lever 2 co-operating with lever 1 and coupled to the booster 6 so that when the booster is operative the levers pivot together about a fixed fulcrum 3 and when the booster is inoperative lever 1 pivots about fulcrum 7 and requires a greater angular movement to effect a given displacement of member 24 than when the levers pivot together. The fulcrum 7, carried by lever 1, moves in slot 8 in lever 2, a notch 10 in lever 2 engaging a pin 9 on lever 1. The piston rod 5 of the vacuum suspended booster 6 is pivoted to lever 2 and houses the control valve rod 13. Clockwise rotation of lever 1 about pin 9 to take up the lost-motion connection 7, 8 moves a peg 11 from arm 12 which rotates to lower rod 13 to operate the booster control valve, Fig. 2, not shown, the piston 14 rotating lever 2 with lever 1 about fulcrum 3 to operate master cylinder 25 via rod 24, the arm 12 rocking back to its initial position to cut off the booster. In Fig. 3, not shown, the control valve is carried by lever 2 and is operated by an extension of lever 1; the piston rod of the master cylinder is connected to lever 1 through an eccentric bush for fine adjustment of the rod relative to lever 1. In Fig. 5, the valve 37 is operated by an arm 41 pivoted to lever 2 and engaging a rod 39 sliding on a pin 40 fixed to lever 2, the arm also engaging lever 1 through an adjustable stop 42; the pin 7 is on lever 2 and slot 8 in lever 1. The lever 1 in Fig. 6, not shown, is connected to a remote pedal through a linkage. The embodiment in Fig. 7, not shown, is similar to Fig. 1 but with the master cylinder, booster and lever 1 rearranged, the pin 9 being on lever 2 and abutting an edge of lever 1. The booster may be operated by compressed air or a pressure liquid. Specification 941,325 is referred to.
Patent GB-221221-A (GB)
Title: A new or improved process of welding
IPC: B23K23/00
Filed: 1924-08-28
Abstract: 221,221. Block, I. Aug. 30, 1923, [Convention date]. Thermo-aluminic processes.-Pails and other objects are butt-welded by the thermo-aluminic process by clamping the parts with a gap between the ends, pouring in a thermo-aluminic metal so as to heat the parts while maintaining the gap, and then forcing the parts together so as to squeeze out the heating metal and weld the ends of the objects directly. The gap between the ends may be about 10 mms. or 1/3" and the joint which is surrounded by a mould may be preheated in the mould bv a benzol blower &c. before the thermo-aluminic metal is poured therein.
Patent GB-774957-A (GB)
Title: Metal detector or bore-hole logger
IPC: G01V3/10
Filed: 1955-07-14
Abstract: 774,957. Metal detectors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 14, 1955 [July 22, 1954], No. 20369/55. Class 37. The invention provides a metal detector or bore-hole logger in which variation of the Q- factor of a pick-up coil 4 in dependence on metallic material to be detected changes the degree of feedback in an oscillator. As shown, the oscillator comprises triodes 7, 9 and the pick-up coil is tuned, the circuit 1, 2 in series with resistor 10 providing the feedback circuit. The rectified output operates a moving-coil instrument 18 graduated in different sorts of ore and deflected one way for ferro-magnetic ores and oppositely for highly conductive non magnetic ores, e.g. sulphide ores. The logger is cast in a synthetic resin body 23 with triodes 7, 9, in metal casings and a cable connects the logger to instrument 18 and anode battery 13 and a switch 18 which may be closed, so that relay 6 is energized to connect in a calibrating tuned circuit 3, 4 instead of tuned circuit 1, 2.
Patent GB-158291-A (GB)
Title: Improvements in wireless telegraph transmitters
IPC: H04B1/04
Filed: 1919-08-19
Abstract: 158,291. Round, H. J., and Ditcham, W. T. Aug. 19, 1919. Vapour and vacuum or low-pressure apparatus, arrangements of. - Relates to current-rectifying devices for use in wireless teLegraph transmitters employing thermionic valve or spark oscillators. Alternating current supplied through the transformer T is rectified by a valve R and smoothed out by a condenser L of large capacity, so that the leads O, O<1> serve as a source of direct current for an oscillator. According to the invention, a two-armed key or switch K, K<1>, which may be worked from the ordinary sending key, is so arranged as to break the circuits on the two sides of one of the terminals of the condenser L simultaneously, in order that the potential of the condenser may remain constant. The two arms of the key may be shunted by resistances A, A. in a modification, the arm K<1>' may break the primary circuit of the transformer, and in that case it may be shunted by a choke coil. In the modication shown in Fig. 3, the key is replaced by valves V, V<1>, which break circuit when the key k is closed. The key k operates relays C, C', which reverse the grid-potential of the valves V, V<1>, and so interrupt their plate currents.
Patent GB-1279174-A (GB)
Title: Process for the manufacture of a stuffing material
Inventor: BOLLAND ROBERT
IPC: B68G7/02
Filed: 1970-04-28
Abstract: 1279174 Non-woven fabric SOC RHODIACETA 28 April 1970 [28 April 1969] 20426/70 Heading D1R A tow of continuous crimped filaments of polyethylene terephthalate, nylon 6, 6.6, 6.10 or 11, polypropylene or other polyolefine, acrylonitrile or other vinyl polymer is opened into a web by means of tension devices, lever arrangements and spreaders. The web is passed under tension between two positively driven rubber-coated smooth rollers, the upper roller rotating at at least 5, preferably at least 7.5 times the speed of the lower roller, collected without tension on a belt, sprayed on its upper surface with an aqueous dispersion of an unplasticised acrylic resin containing an anionic surface-active agent, and heated at 150C to crosslink the resin. The web is then passed through the same or a second set of rollers so that the non-sprayed surface is contacted by the more rapidly rotating roller, and may be sprayed on the non-sprayed surface. The web has essentially plane external surfaces, and is used on padding. The web may be needled.
Patent GB-459801-A (GB)
Title: Improvements in and relating to electric control systems for steam boilers and the like
IPC: F23N1/02
Filed: 1935-07-18
Abstract: 459,801. Automatic control systems. CLYDE OIL FUEL SYSTEM, Ltd., and RICHARDSON, E. A., 136, Wellington Street, Glasgow. July 18, 1935, No. 20454. [Class 38 (iv)] Temperature ; fluid pressure.-In a system in which an electric motor 12 drives an automatic stoker (not shown) and includes in its control circuit a switch 16 operated by the temperature or pressure in the boiler, this switch has an additional contact 19 which energizes a heater 20 operating a heat motor 2 which reciprocates to actuate a disc 23 stepby-step. This disc closes at intervals an alternative circuit for the stoker motor to prevent extinction of the fire. The heat motor 2 comprises a closed chamber expanded by the heat of the coil 20 to operate a pawl 22 and contacts 10 in the circuit of this coil, and so produce reciprocation of the pawl. A pin 25 on the disc 23 causes spring contacts 26 to close and start the stoker, and upon further rotation of the disc this pin passes through slots in the spring contacts to permit them to open until the disc has completed its rotation.
Patent GB-994633-A (GB)
Title: Transmitting power by friction in infinitely variable cone pulley gears
IPC: F16G5/18
Filed: 1961-06-07
Abstract: 994,633. Belt gearing. W. REIMERS. June 7, 1961 [June 11, 1960], No. 20540/61. Heading F2Q. [Also in Division B8] In a link chain comprising transversely extending pressure members having contact surfaces adapted for engagement frictionally with the surfaces of cone pulleys, each contact surface comprises a plurality of individual surface elements disposed behind each other longitudinally of the chain. As shown in Figs. 1 and 3, the pressure member 22 consists of thin sheets 21 slidably mounted in rectangular apertures 20 in link straps 11, 13. The apertures 33, Fig. 5, in the outer straps may be enlarged and tapered to facilitate bending of the sheets 21. The link straps may be formed as a single member. In a modification, link pins 43, 45, Fig. 8, are provided with apertures in which laminated pressure members 49 are mounted so as to be shiftable transversely. In another modification, hollow link pins 53, 55 contain bundles of thin rods. In a further modification, each chain link 60 consists of a single piece of material comprising a central part 62 having opposite cylindrical contact surfaces 61 provided with notches 66 and end straps 63 through which pass pins 65 having end contact surfaces 61a provided with notches 66a. In another embodiment, the pressure member consists of a plurality of sheets separated by shorter sheets.
Patent GB-266996-A (GB)
Title: Improvements relating to coke ovens
IPC: C10B5/12
Filed: 1926-08-20
Abstract: 266,996. Schr÷der, H. Aug. 20, 1926. Coke ovens.-In a coke oven having regenerators arranged parallel to and extending beneath half the length of the ovens, and each having an horizontal partition c dividing the regenerator into connected upper and lower chambers a<2>, a<1>, a larger supply of gas is delivered to the end heating-flues, which receive their air direct from the connecting-passages e, than to the remainder, which are supplied with air from the sole flues f. A separate supply pipe i may be fitted for the two end flues, or where a common pipe is used the supply of gas to the inner flues may be restricted by forming the gas pipe with a sharp bend or a contraction. The damper g for controlling the passage of air from the regenerator may have an upstanding portion Fig. 3, which co-operates with a depending projection p to restrict the supply of air to the sole flue f when the effective cross-section of the passage e is reduced.
Patent GB-1148386-A (GB)
Title: Improvements in or relating to vehicle wheels
Inventor: NELSON HERBERT OLIVER
IPC: B60B15/00
Filed: 1965-05-14
Abstract: 1,148,386. Vehicle wheels; amphibious craft; propelling vehicles in water DEFENCE, SECRETARY OF. 12 Aug., 1966 [14 May, 1965], No. 20588/65. Headings B7A, B7C and B7V. A wheel for a cross-country or amphibious vehicle comprises a hub 14, a rim 13 and a plurality of segments 12b, 12c ... constituting a web between hub and rim, said wheel having means whereby at least one of the segments may be adjusted, about an axis extending radially from the hub, to any required plane between a plane normal to the wheel axis and a plane inclined at a limiting angle to said normal plane. Said adjusting means may be housed in hub 14 and may comprise pin and slot mechanism or gearing. The rim may be separate from the segments and fixed, and may carry a pneumatic tyre.
Patent GB-1026109-A (GB)
Title: All-plastics bags and process and machines for their production
IPC: B31B19/84
Filed: 1964-05-19
Abstract: 1,026,109. Closing plastic bags or tubes. ST. REGIS PAPER CO. May 19, 1964 [June 4, 1963; July 5, 1963], No. 20637/64. Heading B8K. [Also in Division B5] The fused edges 31 (Fig. 5) of walls 11, 12 of a bag made from flexible thermoplastic resinous sheet material are completely covered by closure strip 30 having an elliptical cross - section and made of compatible thermoplastic resin. The closure strip 30 is made by deforming an extruded U-shaped strip as it fuses to the edges 31, (see Division B5). In the configuration described, a sheet of thermoplastic resin is folded to form a gusseted tube 10 (Fig. 2) which is joined at 17 by two strands of molten thermoplastic resin, one of which has a rectangular cross-section and the other a circular crosssection. The tube 10 may be provided with a tubular valve 19 which is made of thinner thermoplastic, and which is sealed to the tube walls by similar strands of molten plastics. Alternatively, a valve may be made by folding in the top part of the gusset 13, and attaching a valve tube to it by strands of molten plastics. One or both ends of the tube may be closed, using a closure strip. Suitable sheet materials are made from combinations of plastics materials whether produced by extrusion coating or emulsion coating or by lamination by means of heat and pressure.
Patent GB-1236688-A (GB)
Title: Method of reducing viscosity in high pour point mineral petroleum crude oils
Inventor: ZANG CHARLES WILLIAM
IPC: C10G32/00
Filed: 1969-04-23
Abstract: 1,236,688. Treating mineral oils with microorganisms. BIO-PETROLEUM INTERNATIONAL ETABS. 23 April, 1969, No. 20727/69. Heading C5E. A method of reducing the specific viscosity of high pour-point mineral petroleum crude oils comprises contacting the oil with either (a) a microbiological nutrient medium inoculated with a species or plurality of species of wax consuming micro-organisms, the species or plurality of species being selected in accordance with its or their environmental characteristics so that throughout substantially the entire range of environmental conditions occurring in said oil the species or at least one of the plurality of species is effective on the wax content of said oil, or (b) the hydrocarbon dismutating enzyme spectrum secreted by said species or plurality of species.