baber/WOPTO huggingface dataset:
Patent GB-626799-A (GB)
Title: Improvements in coupling devices for locomotives and the like
IPC: B61G5/02
Filed: 1947-07-07
Abstract: 626,799. Coupling devices for locomotives. TOPAZIO, L. C. July 7, 1947, No. 17833. Convention date, Sept. 18, 1946. [Class 103 (v)] A device for coupling or uncoupling locomotives and the like to trucks or carriages characterized by a control valve 1 for distributing compressed air to cylinders 2, 3, the pistons of which effect the movements of coupling rod 150 to engage or disengage the towing hook on the towed vehicle through hinge 16 and vertically moving bracket 17. The valve has seven positions and consists of a central plug 11, Fig. 5, closely fitting a cylinder 7. This valve has upper passages 12, 13, 14, Fig. 8 (top half) coacting with compressed air pipes 4, 4<SP>1</SP> and ports 9, 10, and lower passages 12<SP>1</SP>, 13<SP>1</SP>, 14<SP>1</SP>, Fig. 8 (lower half) coacting with air pipes 5, 5<SP>1</SP> and ports 9<SP>1</SP>, 10<SP>1</SP>. The various valve positions give combined actions of the pistons in cylinders 2, 3 to effect coupling and uncoupling of the towing hook.
Patent GB-421637-A (GB)
Title: Improvements in or relating to double windows and doors
IPC: E06B3/52
Filed: 1934-06-16
Abstract: 421,637. Fastenings for doors, windows, &c. GRETSCH BAUBESCHLAGINDUSTRIE GES., V., and GRETSCH, V., 1, Tannenackerstrasse, Feuerbach, Stuttgart, Germany. June 16, 1934, No. 17848. [Class 44] [See also Group X] A double door or double casement has one wing slidable obliquely and in a parallel plane on the second one, and is movable to engage wedge-shaped or other grooves in the frame by a handle 149 and cam or eccentric, and thus to fasten the door &c. Securing means for all four edges may be provided by two wings on a hinged member, the wings being movable in opposite directions.
Patent GB-454786-A (GB)
Title: Improvements in and relating to devices for obtaining a constant flow of fine granular masses
IPC: B65G47/72
Filed: 1936-06-26
Abstract: 454,786. Delivering powdered materials from hoppers. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. June 26, 1936, No. 17871. Convention date, July 4, 1935. [Class 78 (i)] Material delivered from a hopper 23 through a nozzle 24 is received by a pocketed drum 25 having two or more sets of vanes I, II, III set at varying angles. As the drum rotates counterclockwise, each set of vanes becomes downwardly inclined at a different point in the revolution, thus delivering a proportion of the material by gravity to each of the shoots 12, 13, 14. Some or all of the vanes may be adjustable so that their angle of set can be varied to regulate the quantity of material delivered to any particular shoot. Fig. 3 shows the application to the making of electric heating resistances, the insulating material delivered to the shoot 12 only being used to supply the tamper 19 which rams the material round the coiled conductor 16 mounted in the tube 15. The material delivered to the other shoots is returned for re-use. The subdividing of the delivered material in this manner obviates the use of a nozzle 24 of such small diameter that clogging would be liable to occur. The drum may be rotated by power or by the weight of the material falling on to it.
Patent GB-1123082-A (GB)
Title: Improvements in or relating to moving coil type loudspeakers
Inventor: MILLER JOHN WILLIAM
IPC: H04R9/02
Filed: 1966-04-25
Abstract: 1,123,082. Loud-speakers. GOODMANS LOUDSPEAKERS Ltd. 19 April, 1967 [25 April, 1966], No. 17909/66. Heading H4J. In a method of making a moving coil loudspeaker, a non-ferrous ring or cup 8 is interposed between a centre pole 4 and a magnet pot 1. The cup 8 has spaced lugs 10 around its periphery clamped between a front plate 5 and the pot 1. Axial pressure is applied to the assembly to cause the lugs 10 to be embedded in the front plate 5 and the pot 1 with distortion of these members 1, 5 to lock the components together (Fig. 2 not shown). Loss of magnetic path between the members 1, 5 is at a minimum. The cup 8 may include an inwardly-directed flange 8a received upon an annular shoulder 9 on the centre pole 4 during the pressing operation. A flanged ring or cup (13), Fig. 4 (not shown), may assist in centring the pole 4 and a cylindrical magnet 2. Alternatively the locating cup 8 may have a downwardly facing lip (12), Fig. 3 (not shown), which bears upon the rim of a shoulder of the pole 4. The assembly may be permanently fastened together by a swaging, staking, screwing or welding operation. Thus a rib 14 may be subjected to staking to deform it into locking engagement with a chassis (16, Fig. 2 (not shown), and with the front plate 5. A sleeve 3 of cardboard or plastics centres the magnet 2. Prior to pressing, a steel tube 11 is inserted to maintain the air gap 7.
Patent GB-974371-A (GB)
Title: Foamed polyvinylcarbazole
Inventor: ELLINGER LEO PHILIPP
IPC: C08J9/18
Filed: 1962-05-10
Abstract: Moulded foamed polyvinylcarbazole is produced by impregnating granular polyvinylcarbazole by immersing it in a mixture containing at least one volatile solvent of boiling point not exceeding 180 DEG C. and one non-solvent which is miscible with and more volatile than the solvent, heating to drive off the non-solvent but retain a substantial amount of the solvent and subsequently moulding the granules at a temperature sufficient to drive off the residual solvent.  The solvent should be such that expansion occurs during moulding, e.g. benzene, dioxan, tetrahydrofuran, dimethylformamide, pyridine or mixtures thereof. The diluent may be acetone. Azobis-iso-butyronitrile may be added to the solvent diluent mixture and impregnation may be carried out at least in part under reduced pressure.  Granular polyvinylcarbazole may be produced by aqueous emulsion polymerization in the presence of a dispersing agent or protective colloid, azobisisobutyronitrile and ditertiary butyl peroxide.  It may be expanded prior to impregnation by heating to 200-250 DEG C.
Patent GB-145745-A (GB)
Title: Improvements in steam engine condensers
IPC: F01B25/00
Filed: 1920-07-02
Abstract: 145,745. Worthington Pump &. Machinery Corporation, (Assignees of Stone, J. D.). Sept. 6, 1917, [Convention date]. Straight-tube apparatus; casings, construction and forms of. - The foundation of a turbine or other steam-engine is used as the shell of the condenser of the engine. The condenser may be of the surface or the jet type. In one form, the concrete foundation 10 constitutes the steam space of the condenser, the exhaust steam entering directly by an inlet 15. To allow for expansion, an annular space 17<a> is left between the exhaust pipe 14 and the inlet 15; the space 17<a> is closed by a metal plate 16 with one edge secured to the pipe 14 and the other embedded in the concrete. A free exhaust 30, air outlet 34, and condensate outlet 32 are formed in the concrete. At each end of the condenser are tube-plates 18, secured within rings 17, and preferably seated against flanges 19. The water-boxes formed by the rings 17 and tube-plates 18 are closed by heads 37. Braces 21, 22 and 39, 41 are provided in the steam space and the water-boxes. Sagging of the cooling-tubes is prevented by perforated plates 23 held by cross-braces 24. The tube-plates are supported against air-pressure by stays 25. The tubes in the upper part of the condenser, Fig. 3, are arranged in vertical sets with channels at intervals between them, and in the lower part are arranged as shown with short downwardlyleading openings 29 and with a baffle 35 under which the air escapes to the conduit 34.
Patent GB-596052-A (GB)
Title: Pulse generating and/or modulating system using a gas-filled electron discharge tube
IPC: H03K3/78
Filed: 1945-07-16
Abstract: 596,052. Pulse modulating circuits. STANDARD TELEPHONES & CABLES, Ltd. July 16, 1945, No. 18205. Convention date, July 17, 1944. [Class 40 (v)] A pulse generator comprises a gas-filled valve with a capacitor shunted by a resistor in the cathode circuit, the capacitor being charged during conduction through the valve to a level causing extinction, and then discharging through the resistor to initiate conduction again. Initially, gas-filled valve 3 in Fig. 1 conducts to charge capacitor 8 from battery source B as indicated in curve 17, Fig. 2a. Conduction continues until the cathode potential reaches level 21 when the anodecathode voltage becomes insufficient to maintain conduction. Capacitor 8 then discharges through resistor 7 until the cathode voltage falls to level 16 at which the grid bias initiates conduction again. An audio-modulation signal may be impressed on grid 4 from microphone 1 and amplifier 2 to cause the striking voltage 24 to vary sinusoidally without affecting the extinction voltage. Each time the tube strikes, a pulse appears at anode 9 with a sharp leading edge 26. The pulse train at the anode is fed through amplifier 12 and clipper 13 to produce uniform pulses 29 with leading edges modulated in time to correspond with the impressed audio signal. These pulses modulate an RF oscillator 14. Specification 454,471 is referred to.
Patent GB-870752-A (GB)
Title: Cover suitable for a beer barrel
IPC: B65D25/34
Filed: 1957-06-07
Abstract: 870,752. Beer barrel covers. WEARS, W. J. May 22, 1958 [June 7, 1957], No. 18228/57. Class 21. [Also in Group XIII] A beer barrel cover 2 is made of a resilient open-pore plastic foam sheet material, such as polyurethane foam or polyisocyanate-foamed unsaturated alkyd resin. By keeping the cover wet, the barrel 1 is cooled by evaporation. The cover is made up from a number of sections 3, 4, 5, 6 with extruded plastic 7 serving as piping in the seams and a binding strip along its periphery.
Patent GB-1213067-A (GB)
Title: Electrochemical transducer
IPC: G01N27/49
Filed: 1968-04-17
Abstract: 1,213,067. Electro-chemical analysis. E.I.  DU PONT DE NEMOURS & CO. April 17, 1968 [April 18, 1967], No.18230/68. Heading G1N. [Also in Division C3] An electro-chemical cell for biomedical measurement of glucose comprises an oxygen-sensitive cell having the membrane coated with an enzyme gel (glucose oxidase) held in a polyacrylamide matrix. A commerically available oxygen-sensing cell with a micro-cathode (e. g. a cathode tip of 25 microns or less) similar to that illustrated in Fig. 1, (not shown) may be used. Dual cathode enzyme electrode In an alternative construction, Fig. 2, an nylon net 8 (about 35 microns thick) is impregnated with silicone plastic cement and fastened to a plastics cap 20 so that it covers the membrane 17. small holes 11, (50-300 microns dia. ) are made in the impregnated net directly over the cathode tip and filled with the enzyme in an acrylamide/N, N<SP>-</SP> methylene-bisacrylamide copolymer carrier. The enzyme in one hole is deactivated by heat-treatment whereby the co-operating cathode responds to oxygen only, and differential measurement with respect to the other cathode gives a true glucose reading. The platinum cathodes 12 are mounted in glass capillary tubes 13 just below the membrane and surrounded by an Ag-AgCl anode 14. Measuring circuit a null circuit with a servo-driven potentiometer providing a feedback signal is illustrated in Fig.3 (not shown).
Patent GB-589073-A (GB)
Title: An improved manufacture of vulcanized compositions
IPC: C08L23/22
Filed: 1942-12-23
Abstract: Rubber-like material capable of rebounding is made by adding to an iso-olefine-diolefine copolymer prepared at a temperature below 40 DEG  C. in the presence of dissolved aluminium chloride, 0.5 to 50 per cent of its weight of a liquid hydrocarbon and vulcanizing the mixture by heating with sulphur.  Copolymers specified are those from isobutylene and butadiene, dimethyl-butadiene, isoprene or pentadiene.  Suitable hydrocarbons are naphtha, gasoline, fuel oil, lubricating oil, gas oil and paracymene.  The sulphur may be added before or after polymerization.  Optional additions are fillers, e.g. zinc oxide, chrome green, lithopone or barytes and carbon black; stearic acid; and vulcanization accelerators, e.g. tetramethyl thiuram disulphide.  Specifications 523,248 and 555,051 are referred to.ALSO:Rubber-like material capable of rebounding is made by adding to an iso-olfiene-diolefine copolymer (see Group IV), 0.5 per cent. to 50 per cent. of its weight of a liquid hydrocarbon and vulcanizing the mixture by heating with sulphur.  Copolymers specified are those from isobutylene and butadiene, dimethybutadiene, isoprene or pentadiene.  The sulphur may be added before or after polymerization. Suitable hydrocarbons are naphtha, gasoline, fuel oil, lubricating oil, gas oil or paracymene.  Optional additives include fillers, e.g., zinc oxide, chrome green, lithopone, barytes and carbon black; stearic acid; and vulcanization accelerators, e.g., tetramethyl thiuram disulphide.  Specification 523,248, [Group IV], is referred to.
Patent GB-152152-A (GB)
Title: Improvements in washing machines
IPC: D06F15/00
Filed: 1919-07-24
Abstract: 152,152. Coleman, C. J. July 24, 1919. Washing-machines with clothes carried upon moving frames.-The clothes are suspended from a rack 1 which is given vertical reciprocations in a washing tank 12. The rack consists of a rectangular frame 2 the side members of which are notched at 3 to receive the ends of the rods holding the clothes. These rods comprise a lower bar 5 over which the garments are thrown and to which they are clamped by an upper bar 4 provided with resilient projections 6 or rings and secured to the lower bar 5 by stirrups 7 or rubber bands. The bars are clamped in the rack 2 by a hinged frame 8. The rack may be operated by a counterbalanced lever or may be duplicated as shown in Fig. 2. The tank may be fitted with a water-heating coil as described in Specification 148,047, [Class 64 (i), Heating liquids &c.].
Patent GB-727909-A (GB)
Title: Improvements relating to motor vehicle construction
IPC: B62D25/20
Filed: 1952-07-21
Abstract: 727,909. Vehicle frames. DAIMLERBENZ AKT.-GES. July 21, 1952 [July 21, 1951], No. 18377/52. Classes 79(3) and 79(4). In a motor vehicle the chassis frame comprises a hollow longitudinal having a horizontal middle portion and an upwardly directly front portion closely behind the front wheels, the upwardly directed portion supporting a front transverse member so that a foot space is provided below the transverse member and above a floor disposed underneath the frame. In the embodiment shown in Figs. 2 and 3 the frame is formed by box sectioned longitudinals 7 having their forward ends bent upwardly and terminating rearwardly of the front wheels 2. The longitudinals 7 are interconnected at the front by the transverse tubular member 8 having its ends projecting beyond the longitudinals, and a box sectioned transverse member 10 arranged only between the members 7 and arranged to carry the steering column 11 and an instrument panel. The longitudinals 7 are also interconnected by a transverse member 12, arranged beneath the seat, and a transverse member 13. The floor 6 is secured beneath the members 7 and following the bent portions to form the foot space 4. The bent portions of the members 7 house jacks 14. In another embodiment, Figs. 4 and 5 (not shown), the frame is formed of a looped member interconnected by a front transverse member and a rearward transverse member of chevron shape in plan view. In a further embodiment, Fig. 6, the invention is applied to a cellular vehicle, the frame of the middle cell being formed of longitudinals 18 and transversals 19, 20. The frames 24 of the end cells are articulated to the transversals 19 on which are provided resilient supports for the body of the middle cell. The front transversal 19 carries a box section steering column 21. Specification 712,822 is referred to.
Patent GB-494040-A (GB)
Title: Improvements in or relating to machines for forming flat bags
IPC: B31B23/00
Filed: 1937-07-02
Abstract: 494,040. Making paper &c. bags. WOODS, H. J., THRISSELL ENGINEERING CO., Ltd., CHAPMAN, D. G., and CHAPMAN & CO. (BALHAM), Ltd. July 2, 1937, No. 18448. [Class 94 (ii)] In a machine for making flat bags provided with a flap at each end, Fig. 7, in which the bag blank flaps are outlined in a moving web 8 by a line or lines of perforations &c., following which the web is formed into a tube and the leading tubular blanks are torn therefrom, one or both flaps are trimmed, at 45, 47, by co-operating elements moving at the speed of the flap or flaps. The web 8 of paper &c. is printed or embossed at 14 and adhesive is applied to a longitudinal edge at 15. Rollers 16, 17 now perforate the web at 21, 22, 23, 24, 20, to provide a closure flap 18 and a bottom flap 19 for adjacent bag blanks, and further lines of perforations 27, 28, 29, 30 along which the tubular blank is subsequently torn. At 11 the perforated web is formed into a tube and faster running rolls 36, 37 &c. separate off the leading tubular blank. Retractable pins 40 on the roll 36 remove the waste portions 31, 32, and deliver them to any suitable receptacle, as rollers 38, 39 moving faster still accelerate the separated blank forwardly. At 41, 42 the flaps 18, 19 are trimmed by shaped cutting elements, the waste material 45, 47 being removed by pins 46, 48. Rolls 51, 52 fold the bottom flap and the bag is completed by any suitable means. The leading flap of the tubular perforated web may be trimmed before the separation of the tubular blank.
Patent GB-1035897-A (GB)
Title: A milk-curdling enzyme and a process for its production
Inventor: SARDINAS JOSEPH LOUIS
IPC: C12N9/58
Filed: 1964-05-04
Abstract: A mildly proteolytic, milk-clotting enzyme is produced by culturing a fungus of the species Endothia parasitica under aerobic conditions in a medium containing sources of carbohydrates, nitrogen and inorganic salts (of Fe, Zn, Mn, Cu, Co and B) and thereafter recovering the enzyme from the medium by conventional procedures.  The enzyme is suitable for cheese-making (see Division A2).
Patent GB-1395028-A (GB)
Title: Aqueous drilling fluids
IPC: C09K8/05
Filed: 1972-04-21
Abstract: 1395028 Flushing bores VERWALTUNGSGESELLSCHAFT mbH 21 April 1972 [22 May 1971] 18513/72 Heading C1A [Also in Division E1] All aqueous drilling fluid free from swellable clays contains natural or synthetic magnesium carbonate and a water soluble ammonium salt preferably ammonium chloride, present in a molar ratio of magnesium carbonate to ammonium salt. Of at least 3, preferably 3-4 : 1. The magnesium carbonate may have a particle size of less than 100 Á and a bulk density of less than 600/lg/l. The pH may be adjusted to the range 8-12 by the addition of an alkaline medium, e.g. Ca(OH) 2 .
Patent GB-1185333-A (GB)
Title: Improvements in or relating to Cyclobutano- and Cyclobuteno-(3',4':6,7)-Pregnane Compounds
IPC: C07J75/00
Filed: 1967-04-21
Abstract: 1,185,333. Cyclobutano- and cyclobuteno- (3<SP>1</SP>,4<SP>1</SP> : 6,7)-pregnane compounds. SYNTEX CORP. 21 April, 1967 [25 April, 1966; 10 April, 1967], No. 18514/67. Heading C2U. [Also in Division C7] Novel steroids of the formulµ (wherein Z is a carbon-carbon single or double bond; R<SP>1</SP> is H, Cl, F or CH 3 ; R<SP>2</SP> is H, OH or O acyl; R<SP>3</SP> is H or CH 3 ; R<SP>4</SP> is H or HC 3 , but in #<SP>1,4</SP> compounds it must be CH 3 ; R<SP>5</SP> is OH or C 1-6  O alkyl or together are -O-; and R<SP>7</SP> is H, CH 3  or F) are prepared by adding photochemically in an inert organic solvent and under ultra violet irradiation maleic anhydride or its dimethyl or difluoro derivatives to an appropriate 3-Keto-#<SP>4'6</SP>-diene to give products (A) wherein the R<SP>5</SP> groups together are -O- and then, when required, (1) refluxing these products with an appropriate alkanol in the presence of a strong acid to give products (A) wherein R<SP>5</SP> is alkoxy; (2) hydrolysing the initial products to give products (A) wherein R<SP>5</SP> is OH; (3) esterifying the products of (2) to give the same products as in (1); (4) oxidatively decarboxylating the products of (2) with lead tetra-acetate or thallium triacetate or by an electrochemical oxidation; and (5) dehydrogenating any products with 2,3-dichloro-5,6- dicyanobenzoquinone to give the corresponding #<SP>1'4</SP>-compounds. The photochemical addition results in the formation of a mixture of 4,5- cyclobutane adducts (predominantly 4α- 5α) and the required 6,7-adducts of both α- and #- configurations, and this mixture may be separated at this or a later stage by conventional techniques. A free OH group at the 17α- position may be protected by acylation and subsequently released, and, if desired, reesterifled. The photochemical addition may also be effected on a 17α, 20, 20, 21-bismethylenedioxy compound and the dihydroxyacetone side-chain subsequently released and the 21- OH group removed by standard procedures. Products (B) may be converted to the corresponding cyclobutano adducts (Specification 1,176,231) by catalytic hydrogenation. The steroids of the invention, which are stated to be progestational agents, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-240267-A (GB)
Title: Float apparatus for regulating liquid levels, particularly intended for regulating the level of liquid fuel in carburettors
IPC: F02M1/00
Filed: 1924-08-05
Abstract: 240,267. Smith, H. W. Aug. 5, 1924. Float-actuated valves. -Float feed apparatus for use with liquid fuel, water and other liquids comprises a float I working over an adjustable guide pin J and carrying a truncated conical pin H which co-operates with a conical orifice G in the flanged end F of a top-feed supply pipe A. This pipe is screwed externally and is provided with flat sides for adjustment and with locking nuts D<1>, D<2>. It may be screwed into the cover B in the case of a carburettor float chamber, or into a bracket if used in connection with a water tank. The flanged end F is below the cover or bracket. A drain plug M<1> or a tap M<2> is provided in the base of the chamber, a ventilating orifice O<1> in the top, an overflow orifice O<2> at the side and the outlet pipe is shown at N. Flooding in the case of a carburettor may be effected by a spring-loaded pin P adapted to depress the float. Specifications 4009/04, 20003/05, [both in Class 7, Air and gas engines]; 16410/13 and 152,206, [both in Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], are referred to.
Patent GB-968129-A (GB)
Title: Improvements in or relating to anisotropic permanent magnets and their manufacture
Inventor: MAWSON DESMOND LEONARD
IPC: H01F1/04
Filed: 1962-05-15
Abstract: 968,129. Casting processes. ROSS & CO. (FOUNDRY) Ltd. April 11, 1963 [May 15, 1962], No. 18579/62. Heading B3F. A process for producing permanent magnets of the Fe-Al-Ni-Co alloy type with a unidirectional columnar crystal structure comprises casting into a mould cavity chilled at one end, the mould consisting of a major proportion of moulding sand and a minor proportion of exothermic material and being subjected before pouring to an external source of heat, e.g. electrical radiation sufficiently powerful to heat it to firing temperature for the exothermic material content. The mould may be made by the CO 2  process and contain a small addition of wood flour and graphite. Specifications 634,686, 634,700, 640,886, 659,527 and 676,881 are referred to.