baber/WOPTO huggingface dataset:
Patent GB-227751-A (GB)
Abstract: 227,751. Neumann, I. Aug. 26, 1924. No Patent granted (Sealing fee not paid). Cooking-ranges are provided with a fire-space d having sloping side and rear walls and arranged between lateral horizontal channels f leading to a rear flue h, the gases passing to the channels over the top edges g of the side walls, which are inclined so that the openings to the channels narrow towards the rear. A small slot e, level with the highest point of the walls g, leads directly to the flue h. The arrangement allows a large hot-plate to be uniformly heated.
Patent GB-168598-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/54
Filed: 1921-08-27
Abstract: 168,598. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Sept. 2, 1920, [Convention date]. Residual gases.-To prevent blackening of the bulbs of gas-filled lamps, a substance which evolves oxygen when heated is placed in the bulbs, for example on the mica plates which protect the places where the leading-in wires enter the glass. Suitable substances are the nitrates, nitrites, oxides, peroxides, chlorates, perchlorates, chromates, and perchromates of the alkali metals. Phosphorus may also be inserted in the bulbs as described in Specification 102,141. Reference has been directed by the Comptroller to Specification 102,141.
Patent GB-224507-A (GB)
Title: Improvements in or relating to weighing scales
IPC: G01G23/08
Filed: 1924-09-29
Abstract: 224,507. Berkel, C. F. M. van. Nov. 7, 1923, [Convention date]. Vibration, neutralizing.-A weighing-apparatus for fine weighing operations has a liquid or air damping-device comprising a container open at one end and provided at the other end with an accurately-controlled outlet, and a piston connected to the weighing mechanism by a connection which passes round the wall of the container. As shown in Fig. 1, a rod 2 projecting downwardly from the weigh-beam 1 is bent round the wall of an horizontal cylinder 4 and is attached to the piston 5. A screw 8 controls an outlet 9 at the, end of the cylinder. The cylinder may be arranged in an oil-bath and may have either arcuate or straight walls. In a modification, Fig. 2, the cylinder is situated in a vertical position and the piston 12 is arranged in a plane passing though or near the axis of oscillation of the weigh-beam.
Patent GB-770992-A (GB)
Title: Improvements in or relating to a method for producing 3-dimensional reproductions ofsolid objects
IPC: G03F7/00
Filed: 1952-09-12
Abstract: 770,992. Photographic processes. KAO, W. S., [trading is CHEMICAL DEVELOPMENT CENTRE], Sept. 9, 1953 [Sept. 12, 1952], No. 22936/52. Drawings to Specification. Class 98(2) A 3-dimensional reproduction of a solid object is made by illuminating a strip of the surface of the object by a pair of opposed coplanar sheet-like beams, moving the object and beams relative to each other in a direction normal to the plane of the beams so that each strip of the object is illuminated in turn, photographing at least every alternate strip with a camera or one or other of a pair of opposed coaxial cameras to obtain records of the contours defined by said strips, and assembling the photographic records, or representations derived therefrom, one on top of the other to form a 3-dimensional reproduction. Each illuminated strip may be photographed, and the negative transparencies stacked to represent the object embedded in transparent material, or prints may be made and cut along ,the outer or inner of the two contours and the cut-outs stacked to represent the object. In the latter case it is necessary only to photograph alternate strips to obtain a record of each contour. A number of separated strips may be illuminated simultaneously by using more than one pair of coplanar beams. Alternatively a single pair of beams may be moved continuously, relative to the object, and a cine camera used to record the strip images. Additional beams or cameras may be necessary to record the recesses of a re-entrant surface. Specifications 298,377 [Class 98(ii)] and 439,776 are referred to.
Patent GB-1123465-A (GB)
Title: Process for the chromatographic separation of gases and/or vapors
Inventor: HOLLIS OSCAR LEROY
IPC: B01J20/285
Filed: 1966-05-23
Abstract: The following examples give details of the preparation of cross-linked polymers with interconnected pores, suitable as substrates for gas chromatography (see Division B1) by polymerization of monomers in the presence of a non-polymerizable diluent which swells, but does not dissolve said polymers.  (1) A mixture of (a) divinylbenzene, ethylvinylbenzene and diethylbenzene; (b) diethylbenzene as solvent; and (c) azobisisobutyronitrile catalyst, is suspended in water containing finely divided 3MgCO3.Mg(OH)2.3H2O and potassium dichromate and gradually heated with stirring from 50-65 DEG  C.; hydrochloric acid is added and the product recovered as small, highly porous particles.  (2) A mixture of styrene, divinylbenzene and ethylvinylbenzene, was similarly polymerized in an aqueous suspension of the basic carbonate using a mixture of diethylbenzene and i-amyl alcohol as diluent.  (13) A mixture of ethylene glycol dimethacrylate and methyl i-butyl ketone and azobisisobutyronitrile was polymerized as in Example (1) using an aqueous medium containing methyl cellulose in addition to the basic carbonate and dichromate. (14) and (15) Polymers of divinylbenzene, ethylvinylbenzene and N-vinyl-pyrrolidone were prepared as in Example (1).ALSO:In gas chromatography, rigid, insoluble, cross-linked polymers having interconnecting pores and a high surface area, are employed as the substrate.  The polymer is obtained by polymerizing monomers in the presence of a diluent which does not polymerize therewith, and which swells but does not dissolve the polymer, and subsequently removing the diluent.  The cross-linking is sufficient to prevent or inhibit shrinking or drying.  Specified polymers are homopolymers and interpolymers of divinylbenzene, divinyltoluene, divinylxylene, ethyleneglycol dimethacrylate, diallyl phthalate and diallyl fumarate and interpolymers of the above with styrene, ethylvinylbenzene, vinyltoluene, vinylxylene, isopropylstyrene, t-butylstyrene, sec-butylstyrene, methylmethacrylate, ethyleneglycolmonomethacrylate, ethylacrylate, propylacrylate, butyl acrylate, vinyl acetate, vinyl propionate, N-vinyl pyrrolidone, N-vinyl pyridine, N-vinyl morpholinone and N-vinyl oxazolidinone. Specified solvents are toluene, ethylbenzene diethylbenzene, heptane, octane, iso-amylalcohol.  In Examples the following gases and vapours are included in the various mixtures specified: O2, N2, A, H2, Cl2, HCl, CO2, N2O, NO, H2O and NH3; CH4, C2H2, C2H4, C2H6, C3H8, C4H10; methyl, ethyl, i- and n-propyl, t-, sec-, i-, and n butyl, and allyl alcohols; ethylene and propylene oxides; ethylene and propylene glycols; diethyl ether; acetone; formic; acetic and propionic acids; vinyl, methyl and methylene chlorides and chloroform; ethyleneimine, diethylamine and ethylene diamine.  Specified particle sizes are 5-8=150-200 and 400-500 microns.  In Example 16, the polymer was treated with a solution of tetraethylene pentamine before using to separate a mixture comprising air, ammonia, water and amines.
Patent GB-743482-A (GB)
Title: Improvements in installations of electric capacitors
Inventor: COVENTRY ARTHUR FREDERICK
IPC: H01G2/08
Filed: 1952-09-12
Abstract: 743,482. Capacitors. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Sept. 11, 1953 [Sept. 12, 1952], No. 22964/52. Class 37. [Also in Group XIII] An installation of power capacitors comprises a bank of tank-type capacitors associated with apparatus for circulating an insulating liquid through the tanks in parallel to a common cooling device and back to the tanks at a rate depending on the temperature of the liquid and/or the loading of the installation. A tank-type capacitor comprises a tank containing capacitor elements immersed in and in intimate contact with the insulating liquid which thus forms part of the dielectric. The system may be of the thermosyphon type using a fluid the viscosity of which falls sharply with rising temperature, or the thermosyphon action may be assisted by a pump 10, which either allows free flow when inoperative or has a non-return by-pass valve. The pump is controlled by a thermostatically controlled relay operating an on/off switch or varying the effectiveness of the pump, or by the applied voltage or current either directly or through relays. The cooling system may include a flexible reservoir 12 for accommodating changes in fluid volume and may be pressurized by mounting part of the system in communication with the atmosphere above the tanks or by pressurizing air in the reservoir. It may also include a heat-exchanger comprising finned pipes 26 mounted in a convection chimney 5 through which air may be forced by a thermostatically controlled fan 30. Detachable conditioning units 20 for removing water and carbon particles from the oil may be fitted in the main coolant line before or after the pump or in the individual branches to the tanks and may comprise silica-gel absorbers and a filter medium of vacuum dried cellulose discs or wads of dried cotton wool. Where separate units 13 are used for each branch they also include a flowmeter 21 and flow control valve 19, temperature indicator 22, carbon detector 24, and an electric dielectric tester 23, while if a common unit is used the flowmeter &c. for each branch are in separate detachable units. These units, the conditioning units, the tanks, the heat exchanger, pump and reservoir are each provided with cocks at either end so that they can be removed and replaced without draining the system.
Patent GB-927934-A (GB)
Title: Improvements in or relating to paper-making machines
IPC: D21F1/02
Filed: 1959-07-03
Abstract: 927,934. Head boxes for paper-making machines. BLACK-CLAWSON CO. July 3, 1959 [July 3, 1958], No. 22967/59. Class 96. A head box comprises side, front, back and bottom walls, an upper slice lip carried by the front wall and co-operating with the bottom wall to define a slice outlet, two flowrectifying devices, one near the outlet and the other between the inlet and the outlet, the latter or each comprising a plurality of rectifying rolls, one mounted with its periphery close to the bottom wall, and the or each other with its axis higher than and in front of the axis of the next lower roll so that they overlap in the horizontal direction. As shown, the front wall carries the upper slice lip 30 which co-operates with the lower slice lip 31. The two rectifying devices comprise the rolls 71, 72, 73, 74 and 75, all of substantially the same diameter, and mounted to overlap in the horizontal direction by an amount substantially equal to their radius. Stock enters through pipes 46 to an expansion chamber 45, through the throat 53 and the rectifier roll 56. Each of the rectifier rolls 71 ... 75 has an individually adjustable mounting in each of the side walls of the flow-chamber, in the form of an eccentric cam journalled within another eccentric cam, with worm gear &c. for adjustment. The front wall with a reinforcement beam structure 120 is pivoted to adjustable pins 125 which are guided for vertical movement, the upper slice lip 30 being movable in the direction of the wire-cloth 34 under the action of a pair of toggle-links 140, 141 which are screw-adjusted at 142, clamps 150, 151 locking the front wall 20 in the adjusted position. In the pulp supply system, Fig. 16, a pump 250 forces pulp from a supply line 251 and white water from a wire pit 252 to the flow-box passage 40 via a main pipe 253, and a supplementary pipe 254, the flow in which is under control of an air-pressure-actuated valve 256 connected by a pipe line 266 with a controller 260 which responds to changes in a manometers connected as illustrated to the flow-box above and below the pulp level. A further controller 270 and manometer 271, actuate a valve 285 in the air pressure supply 286 to the top of the flowbox, a bleed-valve 287 being fitted, or, alternatively, suction can be applied through a pipe 290 &c. Valves 280a, 280b, 280c and 280d are at different heights to correspond to different pressure ranges. In another embodiment (Fig. 18, not shown) the back and top walls form one continuous curved surface to direct entering stock towards the rectifying means and the outlet. An apron cloth may overlie the lower slice lip and a portion of the forming wire 34.
Patent GB-1310468-A (GB)
Title: Air cushion seismic vibrator
IPC: G01V1/145
Filed: 1971-04-19
Abstract: 1310468 Air cushion vehicle SEISMOGRAPH SERVICE CORP 19 April 1971 [9 March 1970] 22974/71 Heading B7K [Also in Division H4] A seismic energy generator for use on land, water or swampy terrain is constructed as a ground-effect machine in which the air cushion pressure is modulated. In the Fig. 3 embodiment two energy generators are incorporated in a vehicle, each generator comprising a plenum chamber 60 fed with air by an impeller driven by power source 84 which also drives propulsion unit 86. The air flow is modulated by a siren comprising two apertured discs, one of which is fixed and the other of which is rotated by motor M at a controlled rate. The exponentially flared form of the chamber 60 provides optimum coupling of acoustic energy to the ground or water. The alternative embodiment of Fig. 5 comprises a box-form plenum chamber 48 with deflectors 51, 52 to direct acoustic waves downwards. The flow of air driven by impeller 49 is modulated by a shutter including apertured concentric cylinders 42, 44, the inner of which is rotated by geared motor 45. In further embodiments the air flow may be modulated by tilting vanes disposed above (Fig. 7, not shown) or below (Fig. 8, not shown) the impeller. The pressure modulation frequency may be constant (e.g. for use in a holographic survey system), in which case the plenum chamber may be designed to resonate at this frequency to enhance the acoustic transmission, or may be a swept frequency. Correlation signal detection techniques may be used in a survey. Modulation information for controlling the seismic energy generator is picked up at the generator by a radio receiver.
Patent GB-936597-A (GB)
Title: Lift for shoe heel
Inventor: JR JOHN B WHITTED
IPC: A43B21/42
Filed: 1961-06-26
Abstract: 936,597. Heel protectors. WHITSO Inc. June 26, 1961, No. 22990/61. Class 17 (3). A method of manufacturing a lift for a shoe heel comprises the steps of forming a hollow head having openings in its sidewalls on an elongated pin member 13 and moulding a resilient material 12 about the head so that the material extends throughout the passages 21, 22, 23 in the head. The head of the pin 13 is moulded or shaped with a base flange 17 supporting a triangular cross-sectioned member with faces 14, 15, 16 which member is surmounted by a circular shoulder 18. The head is drilled centrally and longitudinally of the pin, the diameter of the bore being such that it breaks through faces 14, 15, 16 of the triangular member forming post members 25, 26, 27 and lateral passages 21, 22, 23 connecting with the central bore. A soft plastic material, e.g. automobile tyre rubber, is then moulded within and around the head, the body 12 of the lift being trimmed to the required size. A knurling 24 may be provided on pin 13 to keep the pin firmly fixed in the body of the heel.
Patent GB-490101-A (GB)
Title: Process for obtaining cellulose from vegetable raw materials
IPC: D21C3/16
Filed: 1937-08-23
Abstract: For obtaining cellulose suitable for good quality paper from wood, straw, and other vegetable materials, nitric acid of 2-10 per cent strength is allowed to act upon the chopped and cleaned raw material for 4-12 hours at room temperature, the material is removed from the acid and drained and then after freeing it from about half the remaining adherent acid by centrifuging or pressing, is heated with stirring in a vessel preventing ingress of air, but at atmospheric pressure and at 60-100 DEG  C. for 1-3 hours.  Finally the material is washed, treated with hot alkaline liquid, e.g. 2 per cent soda solution for 2 hours and bleached. The heating with acid is performed in a closed steel vessel provided with a sensitive valve which prevents ingress of air and raising of the internal pressure above that of the atmosphere. The acid remaining in the material increases in concentration during the heat treatment, and by restricting the amount of water for the first washing, and then centrifuging, the centrifuged liquid may be re-used if desired after addition of concentrated nitric acid.  The initial impregnation may be performed in two stages, first with acid of 2-4 per cent strength and then with acid of 5-10 per cent strength.
Patent GB-1109221-A (GB)
Title: Improved circuit arrangement for interconnecting alternating current networks
Inventor: KALKNER BERNHARD
IPC: H02H9/02
Filed: 1965-05-31
Abstract: 1,109,221. Transmission line arrangements. LICENTIA PATENT - VERWALTUNGSG.m.b.H. 31 May, 1965, No. 23111/65. Heading H2H. In a variable impedance interconnector between two A.C. networks comprising for example a transductor or series resonant LC circuit, the components of the interconnector are insulated for substantially twice the normal peak voltage of the networks. The series LC circuit may be shunted by a damping resistor which under fault conditions may be arranged to pass 1À5 times the quadrature current in the LC combination.
Patent GB-1452507-A (GB)
Title: Pharmaceutical compositions containing anti-allergy drugs
IPC: A61K31/47
Filed: 1973-11-28
Abstract: 1452507 Anti-allergy compositions UPJOHN CO 28 Nov 1973 [1 Dec 1972 21 May 1973] 23119/76 Divided out of 1452506 Addition to 1446614 Heading A5B A package contains pharmaceutical compositions each comprising, as active ingredient, a compound of the formula: wherein the benzenic ring A is selected from wherein "a" is the bond common to the pyridine ring and the benzenic ring A; R<SP>1</SP> is H or methyl; R<SP>2</SP> is H, C 1 -C 6  alkyl, C 7 -C 10  phenylalkyl or phenyl; and X and Y are the same or different and are each H, C 1 -C 8  alkyl, C 5 -C 6  cycloalkyl, C 1 -C 6  alkoxy, trifluoromethyl, phenyl, phenoxy, halogen, piperidino, pyrrolidino, morpholino or NR<SP>3</SP>R<SP>4</SP> wherein R<SP>3</SP> is C 1 -C 6  alkyl and R<SP>4</SP> is C 1 -C 6  alkyl or phenyl; or a pharmaceutically acceptable salt thereof, in which the compositions are of two different active ingredient concentrations, the package including means for delivering a single, predetermined amount of a composition of either concentration such that a priming dosage or a maintenance dosage can be delivered, the amount of active ingredient in a maintenance dosage being substantially less than the amount of the active ingredient, which is sufficient to provide effective inhibition of allergy manifestation, in a priming dosage; or a package may contain the compositions in the form of at least one priming unit dosage and a plurality of maintenance unit dosages.
Patent GB-480692-A (GB)
Title: Improvements in and relating to apparatus for accelerating aircraft for launching purposes
IPC: B64F1/06
Filed: 1936-08-25
Abstract: 480,692. Aircraft catapults; stuffing-box substitutes. MITCHELL, C. C., and RICHARDS, A. Aug. 25, 1936, Nos. 23305/36 and 5660/37. [Class 4] [Also in Group XXVI] An aircraft catapult comprises a cylinder having an end cover provided with a gland, a piston, a smooth cylindrical cable passing through the gland and connected at one end to the piston and at the other end either directly or indirectly through the medium of one or more pulleys to a carriage on which the aircraft is mounted, means for introducing or creating a fluid pressure in the cylinder for firing the piston, and means whereby lubricant is supplied to the gland at a pressure greater than the pressure of the fluid in the cylinder. In one form, Fig. 1, a piston 5 is moved along a cylinder 1 by fluid pressure admitted at 4, a cable 6 secured to the piston passing through a gland 3 at the end of the cylinder, over a pulley 7 and being attached to a launching carriage 8 moving in a guide 9. Gland 3 is maintained fluid-tight by an oil seal. Pulley multiplying gear may be arranged between piston and carriage. In a double-acting arrangement, cables 6 are connected one on either side of piston 5 and pass through glands at the ends of the cylinder, and are either connected direct to the carriage 8 or, as shown, to pulleys 9a around which are passed cables 10 connected at one end to the carriage and at the other to a fixed anchorage. Means for braking the piston at the end of the stroke comprise a byepass passage 13, the inlet to which is uncovered by the piston to permit the driving fluid to pass in front of the piston to provide a cushioning medium, the driving pressure being relieved on further travel by the uncovering of a vent conduit 14. Valves 13b, 14b are provided to render the byepass and conduit inoperative when the direction of launching is reversed, a second byepass 13a and conduit 14a then being employed. In a modification, hydraulic damping may be used to brake the piston.. More than one cable 6 may be employed in conjunction with multiple glands.
Patent GB-185414-A (GB)
Title: Improvements in or relating to chain-pumps
IPC: F04B19/16
Filed: 1922-08-28
Abstract: 185,414. Soc. Anon. des Elevateurs de Liquides Chaine Helice Bessonnet-Favre. Aug. 30, 1921, [Convention date]. Chain pumps.-In a chain pump, the chain consists of a network of simple or multiple wires or threads, or simple or multiple bands of metal gauze &c., which may be padded with a spongy or absorbent material. The chain is mounted on a linkwork carrier 2 so that it does not touch the rotating polygonal pulley 5 over which the carrier passes. Specifications 134,903 and 146,559 are referred to.
Patent GB-386705-A (GB)
Title: Process of preparing hydrated citric acid
IPC: C07C51/43
Filed: 1931-08-19
Abstract: Hydrated citric acid is obtained by effecting oversaturation of a solution of citric acid at a temperature not above 41 DEG  C., so that the acid is crystallized out directly.  The pressure is maintained at less than 1\ba1/4\be inches absolute, that is, the boiling point is less than 41 DEG  C.  The process may be carried out with impure solutions of the acid, but is not practicable if the ratio of acid to impurities is much less than 4 to 1.  For example, with a solution containing 15 parts of acid to 1 of impurity, 50 per cent of the acid may be obtained in a first crystallization, and the mother liquor reworked until a total yield of 75 per cent is obtained.  The remainder of the acid may be recovered as calcium citrate in known manner.
Patent GB-336692-A (GB)
Title: Improvements in the production of fertilizers
IPC: C05B11/06
Filed: 1929-07-30
Abstract: 336,692. Holz, A., and Berdell, T. van D. July 30, 1929. Manures. - Materials containing tricalcium phosphate are treated with a mixture of sulphuric and nitric acid, preferably in the ratio of one to four molecules, and gypsum is removed from the solution of phosphoric acid and calcium nitrate so formed, which is then treated with potassium hydroxide or carbonate. Di-potassium phosphate formed is immediately converted into di-calcium phosphate, which is removed and dried. The residual solution of potassium nitrate may be evaporated to dryness, and the salt mixed in desired proportions with the di-calcium phosphate, which may contain small quantities of calcium sulphate.