baber/WOPTO huggingface dataset:
Patent GB-1324485-A (GB)
Title: Apparatus for preparaing oxygen from air
IPC: C01B13/08
Filed: 1971-08-05
Abstract: 1324485 Apparatus for oxygen preparation; gas/solid contacts BENDIX CORP 5 Aug 1971 [20 Aug 1970] 36888/71 Headings B1F and B1X [Also in Division C1] In preparing oxygen by the formation of barium peroxide from barium oxide, followed by the dissociation of the formed peroxide, the solid reagent i.e. the barium oxide, is arranged in a series of containers e.g. 27, 28 positioned in a housing 10, each container having an electric heating element 46, 48, and being adapted to retain the barium oxide in contact with the heating element whilst permitting gas to flow through, the housing having an outlet port 14 connected selectively to an evacuating apparatus 20, or to the ambient atmosphere and an inlet port 12 connected selectively to an evacuating apparatus 20 or to a source of pressurised air, the housing also being connected via the evacuating apparatus to a storage tank. In operation, the barium oxide is heated via the heating element and a stream of pressurised air is passed through the housing until substantially all the oxide is converted to peroxide, the housing is then evacuated, and the resulting oxygen stored in the tank 21. Preferably the containers are supported by at least one rod e.g. 24, 26 electrically insulated, e.g. by supports 23, 25, from the housing. In a preferred embodiment one rod is situated centrally of the chamber and a plurality of rods surround it. Preferably as shown the series of containers is arranged to form a series of baffles to deflect the flow of air over the barium oxide whilst still permitting the easy evacuation of the housing. The containers 27 and 28 preferably have a screen top 32 and a screen bottom 31, attached to a frame 30 to form a closed container. In another embodiment (Fig. 3 not shown) the housing and trays are rectangular. The heating elements preferably comprise a plurality of coils.
Patent GB-1363839-A (GB)
Title: Belt conveyor
IPC: B65G21/02
Filed: 1970-07-30
Abstract: 1363839 Endless conveyers DOWTY MECO Ltd 14 July 1971 [30 July 1970] 36899/70 Heading B8A A stringer 4 of the framework of a belt conveyer is located against endwise and rotational movement in a channel section member 3. A hollow pin 11 is secured in the stringer for engagement in a hole 8 and a slot 9 in the member 3, the pin first being passed through the hole 8, Fig. 3, and then being received in the slot 9 as the stringer is rotated into the Fig. 1, position. An edge 15 of the member 3 serves to restrain movement of the stringer after the latter has been urged past the edge 15. In a modification, Figs. 4-7 (not shown) a taper slot (16) replaces the hole (8) and a hole (19) replaces slot (9). Having rotated the stringer (4) into its working position the pin (11) is hammered so as to extend through both walls of the channel member (3). The pin may be in the channel section member and co-operating holes in the stringer ends. In place of a single pin there may be two projections on the stringer. The stringer may be circular in cross-section.
Patent GB-793475-A (GB)
Title: Improvements in or relating to sustained release pharmaceutical preparations
Filed: 1955-12-23
Abstract: A liquid medicinal preparation for peroral administration providing a sustained release of medicament comprises particles of medicament dispersed in a time delay material substantially resistant to disintegration in the gastrointestinal tract, the particles not being greater than 100 U.S. mesh, and an aqueous vehicle.  The medicament particles are incorporated in the time delay material, the mixing being accomplished by heating the time delay material to a molten state, then admixing the medicament with it or by applying the time delay material in an organic solvent to the medicament particles. The coated medicament particles may then be ground or spray-dried or spray crystallized to produce particles not greater than 100 mesh. These particles are suspended in an aqueous vehicle containing also a non-toxic surface-active agent, a thickening agent and a deflocculating agent to produce a liquid preparation (a) that has a viscosity of between 100 and 10,000 centipoises at 20 DEG  C., (b) in which the particles have a specific gravity of 1 to 2 at 20 DEG  C. related to water at 4 DEG  C., and (c) in which the water has a surface tension of less than 50 degrees per square centimetre.  The density of the particles is adjusted so that it is between 100 and 150 per cent of that of the aqueous vehicle.  Any medicament may be used, e.g. amphetamine sulphate, racemic d-desoxyephedrine hydrochloride, hyoscyamine, atrophine, phenobarbital and antibiotics. The time delay material may be a paraffin wax, a petrolatum wax, a mineral, vegetable, animal or insect wax, an ester of a fatty acid and a fatty alcohol both containing 12 to 31 carbon atoms, e.g. myricyl palmitate, cetyl myristate or lauryl laurate, a fatty acid containing 10 to 22 carbon atoms, e.g. decenoic, docosanoic or myristic acids, a fatty alcohol containing 14 to 31 carbon atoms, e.g. lauryl, cetyl, arachyl or ceryl alcohols, an ester which may be a mono-, di- or triglyceryl ester of a fatty acid containing 10 to 22 carbon atoms, e.g. glyceryl distearate, mono palmitate, didocosanoate, tricaprate or myristate, a silicone, a cellulose derivative, e.g. ethyl cellulose or cellulose acetate phthalate, polyvinyl and polyacrylic compounds.  Many examples of such compounds are listed in the Specification, with examples of the solvents, surface-active agents, thickening and deflocculating agents used.
Patent GB-1182164-A (GB)
Title: Improvements relating to Hydraulically Operated Hospital Furniture.
Inventor: NESBIT-EVANS DERMOT KNOX LLOYD
IPC: A61G7/012
Filed: 1967-08-11
Abstract: 1,182,164. Hydraulically operated hospital furniture. J. NESBIT-EVANS & CO. Ltd. 20 Aug., 1968 [11 Aug., 1967], No. 36917/67. Heading B8J. A hospital bed comprises a mattress platform 65 raised and lowered by an hydraulic jack unit 60 through linkages 61, 62. The jack comprises an adjustable restrictor valve for controlling release of fluid during descent of the platform. The restrictor valve includes a ball 37 loaded by a spring 38 and is opened by depression of a valve operating rod 42. The degree of opening of the valve to control the rate of descent of the platform 65 is determined by the amount of rotation of a valve actuator 51 screw-mounted in the housing 10 and rotated by a lever 52 actuated remotely by a cable 53, degree of opening being determined by a screw-adjustable stop 50. The restrictor valve may be fully opened by depressing pumpoperating pedal P past its normal limit so that arm 21 operating pump piston 20 engages plate 43 on the valve operating rod 42 to depress it.
Patent GB-357436-A (GB)
Title: Improvements in or relating to the varnishing of webs of cellulose hydrate
IPC: B05C11/02
Filed: 1930-12-08
Abstract: 357,436. Coating webs. KALLE & CO., AKT.-GES., 23, Rheinstrasse, Biebrich, Wiesbaden, Germany. Dec. 8, 1930, No. 37007. Convention date, Dec. 27, 1929. [Class 140.] Apparatus for coating webs, particularly for varnishing webs of cellulose hydrate consists of a varnish bath B, Fig. 1, and two wiping battens 1, 2, mounted at a fixed distance apart and overlapping each other, with two short wedges 3, Fig. 2, mounted on the lower batten which cover the edges of the web and are lightly pressed against it. The wedges may be removably mounted on the batten, and may be made of soft elastic material, or may be of metal, in two parts, with a spring between the parts, as shown in Fig. 3. The part bearing against the web is then covered with fabric. The battens are provided with rounded edges. Preferably the web is led around a series of small rollers C placed relatively close together, before entering the varnish bath, to smooth out irregularities. The apparatus enables the edges of webs to be evenly coated.
Patent GB-906973-A (GB)
Title: Pigment dyestuff preparations for colouring synthetic plastic masses
IPC: C08J3/22
Filed: 1960-10-27
Abstract: A composition for colouring plastics comprises 40 to 70% of pigment dyestuff and 60 to 30% of a polyethylene wax of molecular weight from 500 to 5000.  Specified pigment dyestuffs are lamp black, metal powder, titanium dioxide, ferric hydroxide, ultramarine blue, azo-pigments, and vat, phthalocyanine, dioxazine, perylenetetracarboxylic and quinacridone dyestuffs. The composition may be used for colouring polyvinyl chloride, polyvinyl acetate, polyethylene, polypropylene, polystyrene, natural rubber and synthetic rubber.  Specifications 828,052 and 851,976 are referred to.
Patent GB-994986-A (GB)
Title: Improvements in or relating to electrical heater units of the metal clad type
IPC: H05B3/48
Filed: 1961-10-17
Abstract: 994,986. Electric heaters. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Oct. 17, 1961 [Oct. 17, 1960], No. 37202/61. Heading H5H. An electric heater-unit of the metal clad type comprises a heating element 1 embedded in electrically-insulating material 7 having good thermal conductivity, e.g. magnesite, and coaxial cylindrical metal casings 2, 3 filled with electrically-insulating material 8, e.g. steatite or a mixture of steatite and quartz, in powdered, granular or moulded form, having a higher dielectric strength than material 7. Element 1 is connected to terminal pins 4, 5, pin 4 being electrically-connected to casing 2 whereas pin 5 is provided with a nut 20 for pressing an insulating bush 19 against a terminal clamping ring 18 which is attached to casing 2. Casing 3 is closed at one end by a moulded-steatite member 10 and a cap 12, and at the other end by a rubber plug 14 and a self-vulcanizing mass (not shown) adjacent material 8. Plug 14 is retained by an insulating sleeve 16 and disc springs 17. Alternatively, the uppermost ends of the casings may be closed by a plug of heat-resistant rubber or synthetic plastic material (not shown) which is retained by a flange on casing 3; and plug 14 may be replaced by a mass of selfvulcanizing rubber (not shown).
Patent GB-824267-A (GB)
Title: Improvements in or relating to windshield wipers
IPC: B60S1/40
Filed: 1955-12-29
Abstract: 824,267. Windscreen cleaners. ANDERSON CO. Dec. 29, 1955 [Dec. 29, 1954], No. 37234/55. Class 138(1). Relates to a connector operatively connecting a windscreen wiper arm and blade unit and permitting the blade unit to pivot relative to the arm in a plane substantially tangential to a curved windscreen, rock relative to the arm in a plane perpendicular to the windscreen and also tilt relative to the arm. As shown in Figs. 1 and 2, a blade unit 6 comprised of a wiper element having a wiping edge 7 and an elongated support structure 8 is detachably connected to the end of a wiper arm unit comprised of inner and outer sections 4, 5 and mounted on a drive shaft 3 located adjacent the junction of the frontal portion 1 and a rearwardly extending wing portion 2 of a "wraparound" windscreen. The arm and blade are urged toward the windshield by resilient biasing means (not shown). Referring to Figs. 3 and 5, the arm end is formed with an entering part 23 curved in two directions and twisted about the longitudinal axis of the arm and is engageable in a complementary groove 17 in a nylon block 16 mounted in a housing 9 carried by a member 11 of the structure 8. The housing end walls 13 are provided with lugs 14 engaging in apertures 15 in the member 11 and the top of the housing has an aperture 21 to receive the part 23 and a curved portion 20. The bottom wall 22 of the groove 17 and the lower surface 24 of the part 23 are inclined or preferably formed conically, spherically or ellipsoidarly, the cross-section of the groove and port 23 being rectangular. As the blade unit 6 moves from the parked position to the position 26, Fig. 2, on the frontal portions 1, the blade and housing are caused automatically to pivot angularly relative to the length of the arm 4, 5 and as the blade moves outwardly and rearwardly through the distance 28, Fig. 1, on the wing portion 2, the blade and housing are also caused automatically to tilt about the longitudinal axis of the blade which is thus maintained in an erect position on the windshield. The entering port may be carried by the blade unit and the housing by the arm unit.
Patent GB-314788-A (GB)
Title: Improvements in and relating to thermionic tube circuits
IPC: H04B1/16
Filed: 1928-12-17
Abstract: 314,788. Ideal Werke Akt.-Ges. fiir Drahtlose Telephonie. July 2, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Thermionic amplifiers.-In a thermionic-valve circuit, in which the anode current amounts to an appreciable fraction of the filament-heating current and the filaments are connected in series, the filaments on the negative side of the heating- circuit are shunted by resistances w<1>, w<2>, w<3> to neutralize the increase in the heating-current due to the anode current of the valves on the more positive part of the heating-circuit. As shown, valves r<1> - -r<4> are connected in two groups in push-pull, the valves of each group work in parallel, and all the individual filaments are heated in series. The secondary winding of the input transformer to the push-pull valves consists of two entirely separated halves g<1>, g<2> with terminals connected to the grids of the corresponding valves and to points on the heating- circuit which have a potential difference equal to the potential drop across the filaments of one group of valves. The filament of preliminary amplifying-valves v<1>, v<2> are connected in series with the filaments of the push-pull group and on either side of the latter to produce a difference in the potentials of the cathodes of the valves v<1>, v<2> equal to the voltage drop in the filaments of the push-pull group.
Patent GB-935339-A (GB)
Title: Hydroxyalkyl amylose
IPC: C08B33/04
Filed: 1961-10-18
Abstract: Hydroxyalkyl amylose, defined as a reaction product between amylose or chemically modified amylose and a vic-epoxy compound, is obtained in a form which is substantially water-insoluble at temperatures up to 100 DEG C., and forms at temperatures above 100 DEG C., an aqueous solution which neither gels nor retrogrades on subsequent cooling to room temperature.  The hydroxyalkyl amylose has a molar substitution of at least 0,15 and is prepared by treating a suspension of amylose at 30 DEG  to 90 DEG C. with at least 0,2 moles of a vic-epoxy compound and at least 0,04 moles of an alkaline catalyst per mole of amylose and neutralizing the suspension.  The suspending liquid is a polar solvent for the vic-epoxy compound and may be, e.g. water, alcohols or ethers. The resulting coldwater insoluble hydroxyalkyl amylose may bee solubilized by heating the neutralized suspension to above 100 DEG C., and subsequently cooling. Alternatively the cold water-insoluble product may be separated from the suspending liquid, dispersed in water, heated to above 100 DEG C. until the hydroxyalkyl amylose is dissolved, and cold water-soluble product isolated from the cooled solution.  The solution may be dispersed on a surface to form, on evaporation of the liquid, a self-supporting flexible film of hydroxyalkyl amylose assaying at least 0,15 moles of alkylene oxide per mole of amylose. Alternatively, cold water-soluble hydroxyalkyl amylose may be isolated from solution by precipitation with an organic material, or by spray-drying.  The hydroxyalkyl amylose of the invention ,ay be separated from that having a molar substitution of at least 0,40 and which is immediately cold water-soluble, by filtration or centrifugation, when water is the suspending liquid.  If an organic suspending liquid is used, the solid hydroxyalkyl amylose is separated therefrom, re-suspended in water and again separated.  The amylose used may be a crystalline, amorphous or spray-dried form, prepared from any native starch modified by, e.g. hypochlorite oxidation, acid hydrolysis, or enzymic degradation.  The vic-epoxy compounds may be alkylene oxides such as ethylene, propylene, and 1,2-butylene oxides, or substituted alkylene oxides such as 9,10-epoxystearic acid, 3-diethylamino-1,2-epoxy-propane and epoxidized soybean oil acids. The alkaline catalysts may be any alkaline material soluble in the suspending liquid, e.g. alkali and alkaline earth metal hydroxides, tetra-alkylammonium hydroxide, tetra-alkylphosphnium hydroxides, pyridine or alkali metal alcoholates.  Specifications 895,215 and 895,429 are referred to.
Patent GB-1010986-A (GB)
Title: Fuel container for lighters, and a method of making the same
IPC: F17C11/00
Filed: 1964-09-11
Abstract: 1,010,986. Fuel containers for smokers' lighters. HEINRICH MALTNER G.m.b.H. Sept. 11, 1964 [Sept. 13, 1963], No. 37372/64. Headings F4F, F4P and F4T. A fuel container for liquid or liquefied gasfuelled smokers' lighters and picnic stoves comprises a tank of sheet metal, synthetic resin, or glass, filled with foamed polyurethane resin 11. The resin 11 is foamed in situ. The tank comprises a closure 4 soldered to the tank sides 3 simultaneously with the soldering of an attachment 5 to the closure 4, the attachment 5 serving for the subsequent fastening of an ignition lever and an extinguishing cap. The tank has a tube for the flint and its spring, a filling valve insert 7, and an insert 8 for the burner and its fuel valve. A mixture containing 100 parts of polyurethane resin, 35 parts of an isocyanate foaming agent, and 10 parts of an aliphatic amine activator, mixed with 3 parts of water at 20‹ C., is introduced in the form of pills into the tank through an opening 9 for the burner insert 8 in the proportion of 4 parts by volume of the mixture per 100 parts by volume of the tank. The mixture foams and fills the tank, and is cured for 10-15 mins. at 100-150‹ C. The cured foam contains 90% by volume of pores and the pore diameter is 0À4 mm. In another embodiment, Fig. 3 (not shown) synthetic plastic is blown against the inside of a hollow mould by compressed air or gas supplied through a blowing needle, to form the entire tank. The blowing needle leaves a single blowing gate through which the pills of foaming material are introduced and which is closed by a burner insert containing the filling valve as well as the burner and its fuel valve. The ignition mechanism extends horizontally on top of the tank. In a further embodiment (not shown) the tank and its filling are formed integrally, resin being foamed in a mould so that a fluid-tight plastic layer formed at the inner surface of the mould serves as the tank wall.
Patent GB-359792-A (GB)
Title: Improvements in or relating to two-axle bogies for motor vehicles
IPC: B60G5/047
Filed: 1930-12-11
Abstract: 359,792. Vehicle suspension systems. MÍHL, S., 33, Amaliegade, Copenhagen. Dec. 11, 1930, No. 37405. [Class 108 (ii).] The suspension of a two-axle bogie, having non - steered wheels, for the rear or front end of a motor vehicle is arranged so that the load on the bogie wheels nearest to the centre of the vehicle and the load on the wheels farthest from the centre are inversely proportional to the individual distances from the axes of 'the said bogie wheels to the centre of the wheel axle or bogie at the opposite end of the vehicle. In one form, the suspension spring e carries the axle of the bogie wheels a<1> and is connected at one end to the vehicle frame d and at the other end to one end of a lever g, the other end of which carries one of the other wheels b<l> of the bogie. In modifications, the wheel axles are carried by an inverted laminated spring pivoted to the vehicle frame, or are carried by a lever pivoted to the vehicle suspension spring so as to give the desired distribution of load.
Patent GB-974329-A (GB)
Title: Press for pressing rectangular frames
IPC: B25B5/14
Filed: 1963-09-24
Abstract: 974,329. Cramps. W. HAMMER. Sept. 24, 1963, No. 37544/63. Heading B4W. A cramp for pressing together the parts of a window or other frame W comprises a worksupporting grill having rigid edge members 4, 5 projecting forwardly therefrom so that one side of the work frame can be placed against one of the edges and a pressure device including a pressure block 20 can be arranged to press against the side of the frame W remote from that which is placed against the edge member, the pressure device having a mounting by which it can be fixed to the grill in any one of a number of alternative positions. The grill includes a number of spaced vertical bars 10 of T-section and horizontal straps 12 fixed to the front faces of the bars. The edge members 4, 5 are of tubular cross-section and form an endless, enclosed, pressure-tight chamber having an inlet 29 for the supply of pressure and a number of outlets 27 which project at intervals from the members. The pressure block 20 is carried by a piston-rod which projects through the head of a cylinder 15, the latter having an airintake passage controlled by a finger-operated valve 21, the intake passage being connected to a selected pressure outlet 27 by a flexible hose 26. The cylinder is detachably held against longitudinal movement by a laterally projecting, rigid claw 30 having stepped, locating notches 31 which are adapted to engage over the side edge of a bar 10. A central cut-out portion allows the cylinder to overlie a strap 12.
Patent GB-1467735-A (GB)
Title: Ceramic gas sensor
IPC: G01N27/12
Filed: 1974-08-28
Abstract: 1467735 Detecting gases electrically FORD MOTOR CO Ltd 28 Aug 1974 [31 Aug 1973] 37554/74 Heading G1N A transition metal oxide semi-conductor gas sensor of the type described in Specification 1376769 and used to determine the air/fuel ratio of an I.C. engine is made so as to withstand the testing environment and yet maintain a sufficient sensitivity. Very pure, at least 99À5% Titania powder is calcined and ball milled so as to change the majority into the high temperature stable phase and produce a fine powder, the maximum dimension of each particle being less than 20Á and the particle size range being narrow, 90% of the powder being less than 10Á and 75% being less than 5Á. After ball milling with an organic binder solution to form a slurry the latter is cast in the form of a tape and two such tapes are laminated from which ceramic discs are punched. Platinum heater wires are then applied to one surface of a disc and a second disc placed on top to form a heater pellet. The spaced electrodes and a thermocouple are placed on a heater pellet and superposed by a further heater pellet or ceramic disc after which the assembly is sintered. The particle size and distribution is such that the completed assembly has a density of 72% to 85% of the theoretical density and the average open pore diameter is between 0À4Á to 0À7Á with a total open pore volume of 0À04 to 0À1 cc/gm. This leads to a sensor which has a satisfactory response time and does not crack or fracture in use.