baber/WOPTO huggingface dataset:
Patent GB-398170-A (GB)
Title: Improvements in or relating to retroactive thermionic valve systems
IPC: H04B1/16
Filed: 1932-03-01
Abstract: 398,170. Valve circuits. ROBINSON, J. and BRITISH RADIOSTAT CORPORATION, Ltd., 29, George Street, Hanover Square, London. March 1, 1932, No. 6220. [Class 40 (v).] A back-coupled valve is characterized by the provision of means to control the effective degree of reaction in accordance with the relative values of the input and output, particularly as these depart from a predetermined ratio. The valve 11 to be controlled is backcoupled through the coil 20, which is connected to the grid of an auxiliary valve 22 so that as the output from the valve 11 increases, reverse reaction is applied through a coil 26. The control grid of a second auxiliary valve 24 is coupled to the input of the valve 11, or as shown in the Figure to the input of the preceding valve 10, so that as the effective inputs to the valve 11 increases, the valve 24 supplies current to the coil 26 in such sense as to assist the original back-coupling coil 20, thus tending to offset the " bucking " effect of the valve 22. The control is independent of the absolute input to the valve 11 so that there is no undesirable limiting effect on heavily-modulated signals. Specifications 341,082 and 375,826 are referred to.
Patent GB-672057-A (GB)
Title: Improvements in or relating to magnetic recording devices
IPC: G11B5/00
Filed: 1950-03-13
Abstract: 672,057. Magnetic recording apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 13, 1950. [MarchÀ16, 1949] No. 6234/50. Class 40 (ii). In a magnetic recording apparatus, spurious signals, induced in the record carrier by the sudden application or interruption of supersonic biassing or erazing oscillations, are suppressed by the use of a voltage source which may be connected or disconnected through a time delay network to an electrode of a discharge tube in the supersonic oscillator. In the embodiment described, in which a regenerative valve-oscillator 3 energizes a magnetic head 2 in contact with a magnetic medium 1, oscillation is interrupted by means of the application of a negative voltage 14 applied, via a delay network 17, 18, 19 to the grid of the valve 4 by the closing of a switch 15, the time of decay of the oscillations, determined by the constants of the network, being preferably of the order of 0.1 sec. The rise of the oscillations is similarly delayed as the charge on condenser 19 leaks away through resistance 18 following the breaking of switch 15.
Patent GB-326326-A (GB)
Title: Improvements in and connected with electric fires
IPC: F24C7/06
Filed: 1929-02-26
Abstract: 326,326. Wood, A. R., and Lane & Girvan, Ltd. Feb. 26, 1929. Electric radiators. - An electric fire comprises a pedestal A supporting a bowlshaped body or reflector B which forms with a wire guard D a substantially spherical surface, the centre of gravity of the fire being situated at the rear of the geometric axis in order that the fire may roll over on to its back then displaced from the vertical position.
Patent GB-592018-A (GB)
Title: Improvements in and relating to dimethyl silicone elastomers
IPC: C08K5/14
Filed: 1945-03-13
Abstract: A dimethyl silicone gum prepared by treating dimethyl silicone if desired in solution in toluene with an iron halide, e.g. ferric chloride, or with a mixture of ferric oxide and aluminium chloride, is compounded with a small amount, e.g. up to six per cent of the weight of the gum, of benzoyl peroxide.  The dimethyl silicone gums are described in Specification 594,481.  Addition of the benzoyl peroxide imparts the property of curing in a heated mould or of curing more rapidly when heated in an oven.  The tensile strength and hardness of the cured products are increased. The compositions may include fillers, e.g. lithopone, ferric oxide, titanium dioxide, talc or zinc oxide.  The ingredients may be mixed in a dough mixer and then transferred to rubber rolls for working at room or elevated temperature.  Thorough mixing is necessary before moulding or extrusion of the mass.  A table is given comprising the tensile strength, shore hardness and elongation at break of moulded sheets, prepared from compositions containing 0, 2.4 and 5.8 per cent of benzoyl peroxide, and heat treated for various times at 150-200 DEG C.  The cured products also retain their desirable rubbery properties at temperatures as low as - 50 DEG  to - 60 DEG  C.
Patent GB-553460-A (GB)
Title: Improvements in the sealing of electrical conductors through vitreous walls
IPC: H01J9/32
Filed: 1942-05-11
Abstract: 553,460. Sealing metal to glass. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., and SIMMS, C. H. May 11, 1942, No. 6375. [Class 36] [Also in Group XXIII] In the manufacture of a ring seal, in which sets of electric conductors pass through a vitreous wall 3 joining the ends of substantially coaxial tubes 1, 2, the points where the conductors are to pass are simultaneously heated by flames 7, which pass preferably through conical holes 9 in a metal plate 8, and air from a large reservoir, and at a pressure slightly above atmospheric, is passed through a pipe 5 to blow holes in the wall 3 ; wires carrying vitreous beads are then threaded through the holes and all sealed therein at one operation. Specification 530,923 is referred to.
Patent GB-1213211-A (GB)
Title: Pharmaceutical compositions for combatting angina
Inventor: RUSSEK HENRY IRVING
IPC: A61K31/21
Filed: 1968-02-08
Abstract: 1,213,211. Medicines for angina. H. I. RUSSEK. 8 Feb., 1968 [14 Feb., 1967; 29 Jan., 1968], No. 6393/68 Heading A5B. Compositions for the treatment of angina pectoris comprise a carrier, a vasodilator and a #-andrenergic recepter blocking agent, the vasodilator being selected from: pentaerythritol tetranitrate, erythrityl tetranitrate and isosorbide dinitrate; and the #-andrenergic blocker is selected from: 1-(3,4-dichlorophenoyl)-2-isopropylamino-1-ethanol, 1-(3,4-dihydrophenyl)-2 -isopropylamino-1-ethanol, 1-(2,5-dimethoxyphenyl)-2-methyl-2-t-butylamino-1-ethanol, 1- (3,4-dichlorophenyl)-2-methyl-2-isopropylamino -1-ethanol, 1-(3-tolyloxy)-3-isopropylamino-2- propanol, 1-(5,6,7,8-tetrahydronaphtha-2-yl)-2- s-butylamino ethanol, 1-(2-allylphenoxy)-3-isopropylamino-2-propanol, 1-(p-nitrophenyl)-2- isopropylaminoethanol, 1-(p-nitrophenyl)-2-nbutylaminoethanol and 1-(isopropylamino)-3- (1-naphthyloxy)-2-propanol hydrochloride. A tranquilizer may also be present.
Patent GB-125230-A (GB)
Title: Improved Process for the Production of Decolourizing Carbon.
IPC: C01B31/12
Filed: 1918-04-16
Abstract: 125,230. Tai-Koo Sugar Refining Co., (Obrembski, M., and Resker, H. C.). April 16, 1918. Carbon. - Decolorizing-carbon is prepared by impregnating vegetable material, for example wood chips, saw dust, coco-nut husks, straw, or hay, with an equal weight of calcium chloride applied in aqueous solution and evaporating to dryness under vacuum, carbonizing at 600-800‹ C., washing with acid and water, and finally drying and grinding.
Patent GB-578085-A (GB)
Title: Improved process for the isomerization of paraffins
IPC: C07C5/27
Filed: 1943-04-22
Abstract: <PICT:0578085/IV/1> Normal paraffins of at least 4 carbon atoms are isomerized using a Friedel-Crafts' type catalyst and a gaseous halogen-containing promoter, the reacted mixture being passed through a stripping zone to remove the promoter and gaseous degradation products which are subjected to selective absorption with liquefied hydrocarbon feed under controlled conditions of temperature, pressure and throughput, so that the feed to the isomerization zone contains a desired constant quantity of the promoter.  The reacted mixture is stripped and the overhead comprising, for example, hydrogen halide and degradation products such as methane, ethane and propane, passed direct to an absorber where the promoter is absorbed and the inert gases removed as overhead.  The absorber may be of a bubble plate or packed tower type, the liquid hydrocarbon flowing down against the stream of promoter.  A reboiler or steam jacket may be used to keep a constant temperature, the pressure being controlled by a condenser at the top of the column which normally operates under total reflux conditions.  Part only of the feed may pass through the tower so that after admixture with the remainder the desired concentration of promoter is obtained.  When isomerizing butane using aluminium chloride and hydrogen chloride, the absorption column is operated between about 100-200 lbs./sq. in. and at a temperature varying between about 50 DEG  and 110 DEG  F. to give a concentration of promoter varying between about 12 and 2 per cent.  The solution of promoter in butane is then brought to a temperature of about 125-220 DEG  F. for liquid phase, or 200-450 DEG  F. for vapour phase operation. Liquefied butane is fed to absorber 7 by lines 2, 5 and absorbs hydrogen chloride fed by line 43 from an outside source or from the stripping tower 39.  Both the solution leaving by line 8, and the overhead may be recycled to ensure equilibrium under the absorption conditions.  Inert gases may be withdrawn through line 12, and the butane solution led by pipes 15, 21 to reactor 24 containing "Porocel" (Registered Trade Mark) with absorbed aluminium chloride. The reaction products pass, if desired, partly or wholly by way of cooler 30, to a surge drum 32 which also removes any catalyst, and thence to stripper 39 wherein the pressure is maintained slightly above that of the absorber and the top temperature about the same, while the bottom temperature is generally about 150-300 DEG  F. and is controlled by reboiler 47. The overhead comprising hydrogen chloride and part or substantially all the propane returns to the absorber.  The bottoms are treated with caustic soda in mixer 50, the butane layer being separated in settler 52 and fed to fractionator 60 giving isobutane with any propane as overhead and normal butane with some pentane which may be returned to the isomerizer through lines 68, 70 and drier 69.
Patent GB-231460-A (GB)
Title: Improvements in installations for the extraction from heavy hydrocarbons of extra-light liquid hydrocarbons, through an intermediate gaseous product
IPC: C10G11/02
Filed: 1925-03-10
Abstract: 231,460. BenzonaftÞne. March 28, 1924, [Convention date]. Separating gaseous mixtures by liquefaction.-The gaseous mixture prepared as described in Specifications 231,157 and 231,459, [both in Class 32, Distilling &c.], is treated to separate light hydrocarbons. The gases are withdrawn from a gas-holder 26 by a pump 2 which compresses them to 20 atmospheres. The gases pass through a liquid-separator 4, a cooler 7 cooled by circulation of brine in a coil 8 and an expansion vessel 9 which causes further liquefaction. The liquid passes by a pipe 16 to a water-jacketed still 17 from which by fractional distillation, distillates of rhigolene, petroleum ether, gasoline and ligroine are obtained. The uncondensed gases pass through a washer 11 containing sulphuric acid heated to 150‹ C. or bromine to absorb ethylene, and through a waterscrubber 13 to a holder 14. The residual gases may be used to heat the still 17.
Patent GB-179722-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/16
Filed: 1921-02-28
Abstract: 179,722. Tucker, J. B. Feb. 28, 1921. Switches, quick-action.-The spring element of a dead-centre action quick make-and-break switch is located between the operating-member and the contact-member and comprises a compression spring and spring-constraining mechanism so arranged that the contact-member is displaced by a pull action, the compression spring acting, in effect, as a tension spring. In the construction shown, applied to a tumbler switch, the inner end of the bifurcated tumbler lever has pivoted at 3 between its branches one end of the plunger of a spring element comprising a headed stem 12, 15 extending through a casing 14 and a compression spring 13 located between the head and the casing- The upper end of the casing is provided with a pin 4 which fits on the hooked end of a lug 7 extending upwardly from the contact-member which is bifurcated, the arms being separately pivoted at 6 on depending extensions of the bridge. In a modified construction operated by a rectilinearlymoving member 22, Fig. 4, the plunger rod 20 extends through a member 21 trunnioned in the sliding operating member. The plunger carries a spring 23 between the head 24 and the member 21 and its other end is pivoted to the contactmember at 19.
Patent GB-143485-A (GB)
Title: Improvements in and relating to gas lamps
IPC: F21V17/00
Filed: 1919-05-16
Abstract: 143,485. Ingram & Kemp, and Foster, T. J. May 16, 1919. Globe-holders.-A bowl or shade is supported below the burner by two pin projections d which are placed slightly out of centre on the carrier ring e and rest in indentations formed in an outer ring a. A thumb-piece is provided on one side of the bowl to facilitate tilting the shade to a vertical position, and a stop on the other side limits the return movement.
Patent GB-224446-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22G7/06
Filed: 1924-03-14
Abstract: 224,446. Muchka, J. Jan. 9, 1924,. [Convention date]. Blast apparatus.-In a locomotive boiler wherein steam superheater tubes 3 and feed water heater tubes 3<1> are arranged in certain of the smoke tubes 2 these tubes are arranged to open into a, chamber 9 within the smoke box 8. A single-jet blast pipe 10 enters the chamber 9 and co-operates with a nozzle 11 to cause a higher gas velocity in the smoke tubes 2 than in the smoke tubes which contain no heater tubes and open directly into the smoke box 8.
Patent GB-1530403-A (GB)
Title: Electric convector
IPC: F24H3/00
Filed: 1976-02-19
Abstract: 1530403 Space heaters SOC D'ETUDES ET DE RECHERCHE DE PRODUITS SEPRO 19 Feb 1976 [21 Feb 1975] 06642/76 Heading F4S [Also in Division H5] In a combined radiant-convector space heater a resistance heating element 9 provided with a planar perforated heat exchange fin 11 is situated in the lateral air inlet of the casing 1 so that at least some heat 23 is radiated through the inlet and at least some heat is convected out of the outlet 31. The heat exchange fin 11 is made of aluminium alloy and its planar surface, which is apertured at 15 to form louvres, is arranged parallel to the inlet wall of the casing 1. Sleeve portions 13 of the fin embrace metal sheathed resistance heating elements 9. Baffles 25 situated adjacent outlet 31 are rotatably adjustable to control the relative quantities of convected and radiated heat. Firmed heating elements may be provided in inlets in opposed walls of the casing. The casing 1 may be mounted on castors or may be suspended from wall brackets as shown. The fin 11 may have a matt finish, e.g. it may be anodized followed by a matt black colouring, to increase its emissivity.
Patent GB-575817-A (GB)
Title: Improvements in fittings of fluorescent electric lamps
IPC: F21Y103/02
Filed: 1944-04-12
Abstract: 575,817. Mounting reflectors. THORPE, Ltd., F.W., and THORPE, F. W. April 12, 1944, No. 6711. [Class 75 (ii)] A reflector for a circular tubular fluorescent lamp 7 consists of inner and outer elements 14, 13 having their crowns 12 formed with openings 10 to allow them to be passed above lugs 9 on a spider ring 8 supported on a member 5 carried by the wiring channel 3 and then turned. The elements 13, 14 may be separate or connected by thins rods, tubes, or divisional walls so as to be removable as a unit.
Patent GB-813015-A (GB)
Title: Roof panel guide means for sliding roofs
IPC: B60J7/02
Filed: 1957-02-28
Abstract: 813,015. Sliding roofs. BAIER, O., BAIER, L., BAIER, W., BAIER, W., SCHLUMPRECHT, E., and BAIER, W., [trading as BAIER, KOMM-GES WEBASTO-WERK, W.], Feb. 28, 1957 [Feb. 28, 1956], No. 6733/57. Class 108(1) Roof panel guide means for sliding roofs comprises a guide element 11 on the sliding roof panel 5, reaching under. a longitudinal guide rail 20 on the side edge 7 of the roof opening, said guide element 11 being adjustable in the direction of opening and closing of the sliding roof. Member 7 is a continuation of a rain gutter 6 fixed to the roof 1. The guide 11 is curved at its top forward edge (the lower edge in Fig. 3), and projects through a slot 10 in the roof panel, and engages the downwardly inclined guide curve 9 of the guide rail 20; the guide 11 being pivoted at 12 to the roof panel. An adjustment screw 14 for the guide 11 is engaged by a threaded lug 13 fixed to the guide 11 and passes through a lug 17 formed on a member secured to the front wall 16 of the sliding panel. The screw 14 is situated between the forward wall 16 and the lug 17 and carries a resilient pad 18. When a screwdriver is passed through a slot 19 in wall 16 to rotate screw 14, the latter through lug 13 adjusts the guide element 11 about its pivot 12 so that the end of the guide 11 engages curve 9 sooner or later and thereby adjusts the firmness with which the panel 5 is shut.
Patent GB-374121-A (GB)
Title: Improvements in or relating to devices for starting internal combustion and other engines
IPC: F02N15/02
Filed: 1931-03-04
Abstract: 374,121. Turning-gear. TRILL, T. F., Whiligh Garage, Wadhurst, Sussex. March 4, 1931, No. 6765. [Class 7 (v).] In an electric starter in which a pinion 2 moves axially into engagement with an engine member 3, means are provided to prevent the axial movement of the pinion to enable the starting motor to be used for other purposes, such as tyre inflation, lifting the car, or driving the devices. As shown in the Figure, the pinion 2 is threaded on a screwed sleeve or shaft 4 connected to the armature shaft 5 of the motor 1 by a drive spring 6 enclosed by a sleeve 7 to prevent uncoiling of the spring. The sleeve 7 is slotted at 8, 9 to receive bolts 10, 11 securing the spring 6 to the sleeve 4 and the shaft 5. The means for preventing longitudinal move. ment of the pinion comprise an outer sleeve 12 sliding on keys 13 on the sleeve 7 and provided with spring-pressed plungers 15 having squared ends 17 sliding in a cover-plate 20 and adapted to engage a flange 18 formed on the pinion 2 and cut away at 19. The sleeve 12 is moved to the left in the Figure, against the tension of a spring 21, by a manually operated lever 26, and prevents rotation of the pinion by the engagement of the plungers 15 with the cutaway portion 19 of the flange. The motor may then 'be reversed to drive other devices, e.g. as described in Specification 350,437. In modifications, (1) the sleeve 12 is moved by a solenoid; (2) the sleeve engages the flange on the pinion by means of a conical or flat friction surface ; and (3) the sleeve is mounted to slide directly upon a tubular armature shaft and the pinion engages a screw-threaded part of a shaft passing through the armature shaft, to which it is connected by a spring such as 6 at the opposite end of the motor.
Patent GB-486052-A (GB)
Title: Improvements in and relating to the construction of partitions for dividing up offices and other rooms
IPC: E04B2/76
Filed: 1937-03-09
Abstract: 486,052. Partitions. HARRIS & SHELDON, Ltd., SANKEY & SONS, Ltd., J., and BUTLER, H. G. March 9, 1937, No. 6854. [Classes 20 (iii) and 20 (iv)] A panelled partition comprises a hollow or tubular transom, crossbar, or like member 5 adjustably secured between uprights 3 by a fixing-rod 13 which passes longitudinally through the member 5 with vertical clearance to allow of vertical adjustment of the member 5 relatively to the rod, and each end of the rod adjustably engages a vertical slot, or one of a series of vertically-spaced apertures, in the corresponding upright whereby the height of the rod in relation to the uprights may be varied. Each transom 5 is of rectangular cross-section and comprises a channel lower portion 6 which is slidable in the channel main portion. Both the upper and lower portions of the transom may be grooved to receive the edges of the adjacent panels 2. Each end of the transom may be closed by a sheet-metal plate 8 which is welded to the transom and is provided with a vertical slot 9 to allow passage for the rod 13. Each of the uprights 3 is provided, as shown in Fig. 5, with a shallow channel portion 11 which is engaged by the transom 5 and is provided with a groove 10 for receiving the panels 2. The grooved portion 10 of the upright is formed with a series of vertical slots 12, and each rod 13 is passed through the appropriate slots of adjacent uprights and is secured by nuts 14 screwed onto the threaded ends of the rod. In addition to the adjustability provided by the slots 12, the transom may be adjusted slightly in height by sliding it vertically relatively to the rod 13. The lower portion of the partition may be fitted with metal panels and the upper portion with glass panels.
Patent GB-345071-A (GB)
Title: Improvements in and relating to cocks and taps for beer barrels and the like
IPC: B01D35/04
Filed: 1930-03-01
Abstract: 345,071. Valve accessories. LIMEBURN, C. G., 294, Wickham Lane, Plumstead, London. March 1, 1930, No. 6855. [Class 135.] Strainers.-A cock and strainer for beer barrels and the like has a strainer member in the form of a gauze thimble 10 attached to a sleeve 8 which slides internally of the insertion portion 1 of the cock and is urged outwardly by a coiled compression spring 11 within the cock so that the strainer member 10 projects beyond the edge of the insertion portion, said sleeve 8 abutting an inturned flange 7 on the end of the cock in the extended position of the thimble 10. On applying the cock to the bung of a beer barrel the strainer member 10 recedes into the cock body and the insertion portion 1, 6 forces the bung into the barrel, the strainer member then projecting once more. The insertion portion 1 of the cock may be internally screw threaded to carry an externally threaded member 4 having a shoulder 5, and an internally threaded cap 6 having an inturned flange 7 may be screwed on to the fitting 4. The gauze thimble 10 may be spot soldered to the sleeve 8 directly or it may comprise a number of longitudinal U-shaped rods 9 within which the gauze 10 is carried and which are soldered or sprung into apertures in the sleeve 8. In a modification the insertion portion is externally screw threaded and carries an internally threaded cap on the end, said cap having an inturned flange for retaining the sleeve 8.
Patent GB-596318-A (GB)
Title: Improved abrasive unit or stick for honing
IPC: B24B33/08
Filed: 1945-03-19
Abstract: 596,318. Honing-sticks. MICROMATIC HONE CORPORATION. March 19, 1945, No. 6868. Convention date, April 22, 1944. [Class 60] An abrasive stick for honing cylinders and the like comprises an abrasive stone and a stabilizing element mounted in extension of said stone. An abrasive element 17 is mounted at one end of a shell 16 and a stabilizing element 18 of cork, fibre, brass and the like at the other end. The abrasive stone may be of the same length as the stabilizing element which may have the same cross-section as the stone.
Patent GB-926153-A (GB)
Title: Improvements in dispensers for sharp edged blades
Inventor: NISSEN WARREN IRVIN
IPC: B65D83/10
Filed: 1960-02-29
Abstract: 926,153. Razor blade magazines; packaging. GILLETTE CO. Feb. 29, 1960, No. 7018/60. Classes 18 and 94(1). A razor blade magazine comprises a moulded resinous plastic body 10, a blade supporting plate 30 with spring portions 32, and a sheet metal cover 40, the cover having inturned flanges 44 that engage and stress the portions 32 and so cause the blades to be urged towards the cover. Slots in the blades engage studs 19, 20 on the body, the blades being loaded in staggered relation. To assemble the magazine, the plate 30 and the blades are placed on the body and the cover is placed in position and then the magazine is inverted. A tool 36, Fig. 7, is passed through slots 26 in the body and forces the portions 32 into engagement with the inturned flanges 44 on the cover. The side walls 43 of the cover are pressed in to engage beneath ribs 13 on the body and ears 45 are bent to engage corresponding portions on the ribs 13. Specification 733,608 is referred to.