baber/WOPTO huggingface dataset:
Patent GB-111546-A (GB)
Title: Improvements in or relating to Reflecting Apparatus.
Inventor: AMES ADELBERT
IPC: F21V7/04
Filed: 1916-12-06
Abstract: 111,546. Ames, A. Dec. 6, 1916. Vehicular and like lanterns.-In light-projecting apparatus, a source of light having a substantial vertical dimension is arranged relatively to a parabolic or equivalent projecting reflector or reflectors, such as a Mangin mirror, so as to project a beam of light in or below an horizontal direction without projecting substantially any light upwardly. In one form, a light source having a substantially vertical dimension, such as the incandescent filament of an electric lamp bulb, is placed substantially in the plane of the forward edge of a parabolic reflector with the lower end of the light source substantially in the focus of the reflector.In a second form, an acetylene headlight comprises two reflectors spaced apart with the source of light between them. The rear parabolic reflector P<1> is arranged with its forward edge in a vertical plane slightly behind the light source and with its focus at the top of the dark portion at the base of the gas flame. The front reflector comprises upper and lower parabolic sections P<2>, P<3> having their foci respectively to the rear and the front of the gas flame and at the points of intersection with the axis of the reflector of lines joining the tip of the flame 11 with the top and the bottom of the forward edge of the reflector. The two sections P<2>, P<3> are connected by means of horizontal members. In order to prevent upward glare from the parts of the gas flame below the horizontal plane containing the axis of the reflector, a shield 24, Fig. 7, having forwardly extending ears 29 is arranged preferably immediately behind the burner and extends up to or slightly above the horizontal plane containing the axis. Instead of employing the ears to shield the parts of the reflector P<2>, P<3> lying adjacent to the horizontal plane containing the axis, the axis of the reflector may be arranged at or below the lowest points of the luminous flame. The axes of the reflecting-surfaces P<1>, P<2>, P<3>, instead of being coaxial, may be parallel or inclined to one another.
Patent GB-176272-A (GB)
Abstract: 176,272. Dobson, F. H., and Dobson, H. J. May 5, 1921. Tyres, clastic, and tyre covers, tools for removing and replacing.-A tool for expanding or contracting detachable split rims comprises u lever A provided with a clip B or other device at one end to grip the rim, and with a second rimgripping clip C connected to the lever by a pivoted link D. To assist in separating the split ends of the rim, another lever E may be pivoted to one of the gripping-clips. In a modification, studs on the lever B and link D are adapted to engage slotted lugs, fixed on the rim.
Patent GB-484372-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/36
Filed: 1937-06-25
Abstract: 484,372. Lid fastenings. ELECTROLUX, Ltd. (Aktiebolaget Elektrolux) June 25, 1937, No. 17717. Addition to 484,370. [Class 44] [Also in Group XXVIII] In securing the cover of a vacuum cleaner, a lever 47 acting through a link 81 depresses a triangular &c. plate 84, the link being pivoted to projections 85 on the plate. The plate presses by springs 91 on guided latches 89 which are thus pressed outwardly and tilted upwardly to engage slots in members 105. The cover plate 95 on which the latches 89 bear and which is secured to the cover 100, is thus drawn tightly against the packing 34 of the dust bag 35.
Patent GB-1299388-A (GB)
Title: Improvements in or relating to tamper-proof seals
IPC: G09F3/03
Filed: 1970-04-14
Abstract: 1299388 Security seals STOBA AG 14 April 1970 [16 April 1969] 17768/70 Heading B6P A seal comprises a plastics disc 1 having a, duct 2 having a step 3 at one end and which contains a bent-up metallic clip 6 having a clamp part 7, 8 for holding an end 13 of a tie 12 to be sealed and a double spring clip 10, 11 for latching its other end 19. Barbs 8 hold the clip in place by engaging the sides of the duct at 18. The seal is broken at 22. A shoulder 21 presents insertion of a pointed tool for separating the clip members 11.
Patent GB-783727-A (GB)
Title: Improvements in or relating to photographic developers
Inventor: MUHR HARALD
IPC: G03C5/30
Filed: 1955-06-20
Abstract: 4-Aryl-2-oxytetronimides may be prepared by stirring together as rapidly as possible benzaldehyde or a nuclear-substituted benzaldehyde (e.g. in dioxane solution), glyoxal, and potassium cyanide in dilute sodium carbonate solution in an atmosphere of nitrogen.  Compounds so prepared are 4-phenyl-2-oxytetronimide and 4-o-chlorophenyl-2-oxytetronimide.  4-Aryl-2-oxytetronic acids are prepared by hydrolysis of the imino group of the corresponding tetronimides or by reacting the tetronimides with nitrous acid or iodine to give 2 : 3-diketobutyrolactones and reducing these, e.g. with hydrogen sulphide.  4-Phenyl-2 : 3-diketobutyrolactone is prepared by adding sodium nitrite solution to a cooled mixture of 4-phenyl-2-oxytetronimide, sulphuric acid, and acetone. 4-O-Chlorophenyl-2 : 3-diketobutyrolactone is similarly prepared. 4-Phenyl-2-oxytetronic acid is prepared by saturating a methanol solution of 4-phenyl-2 : 3-diketobutyrolactone with H2S and, after standing, displacing excess H2S with CO2.  4 - O - Chlorophenyl - 2 - oxytetronic acid is similarly prepared.
Patent GB-695839-A (GB)
Title: Improvements in or relating to containers
Inventor: JACKSON JOHN MAXWELL
IPC: B65D51/00
Filed: 1951-07-27
Abstract: 695,839. Closure caps. METAL BOX CO., Ltd. May 19, 1952 [July 27, 1951; Jan. 3, 1952], Nos. 17889/51 and 284/52. Class 125(iii) A closure for sealing a container for a therapeutic preparation or for a hydroscopic substance comprises a thin metal cap having a crown apertured for the passage of a hypodermic needle, &c., a skirt depending from the crown for clamping over a shoulder on the container and a plasticized and cured resin seal adhering to the crown and sides of the cap and sealing the aperture in the cap, the thickness of the seal being such as to render it impermeable and self-sealing to punctures. The cap comprises a crown 1, skirt 3, the lower edge of which may be beaded as at 6 or plain but adapted to be pressed inwardly over a shoulder on the container, and an aperture 2. Adhering to the crown 1 and skirt 3 is a resin seal 7 which is adapted to be punctured by a hypodermic needle. A thin metal foil layer 12 may be provided which is also puncturable by the needle or the aperture may be closed by a removable impermeable cover. Fig. 10 shows a method and apparatus for manufacturing the closures. A rotary table 16 is provided with a cavity 15 the bottom of which is provided with an axially movable plunger 17, 18. The resin paste is delivered by a nozzle 19 into the inverted cap and the table 16 then carries the filled cap through an oven having the required temperature for curing and sterilizing purposes. Subsequently the treated cap is raised by the plunger 17, 18 and cooled by an air jet from another nozzle.
Patent GB-624160-A (GB)
Title: Improvements in or relating to draught strips
IPC: E06B7/23
Filed: 1947-07-08
Abstract: 624,160. Draught excluder. BUCHANAN, J. R. July 8, 1947, No. 17973. [Class. 20(iii)]  A draught strip of rubber or like resilient material for use, e.g. on the lower ends of doors has an upper part 1 which is relatively thick with a side 2 which lies on the face of the door. The side 3 has a projecting bead 4 at a distance above the lower edge 5 of the strip. A slot 6 in the side 2 extends into the bead 4 which is thus hollowed. The dimension at 7 is relatively small and the rib thus readily bendable; by means of this hinge-like connection between upper and lower parts the relatively thin lower part 8 can swing readily and yield itself to the irregularities of the floor. In modifications, the bead may be omitted, the groove having correspondingly less depth or it may be horizontal in cross section. In an' alternative form the slot may have one long standing side and a short horizontal one. In all fore-mentioned instructions there may be included a second slot for additional resiliency along the side 3 lower than the slot 6. The part. 8 may be tapered at one or both sides.
Patent GB-407921-A (GB)
Title: Process of and means for heating or cooling batches of water or other fluid with a heat pump or a cold pump system
IPC: F25D31/00
Filed: 1932-06-25
Abstract: 407,921. Heating ; refrigerating. STOBIE, J. C., Franklin Street, Henley Beach, South Australia. June 25, 1932, No. 18004. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 27, 1932]. [Class 29.] Compression machines and systems.-A fluid is cooled or heated in batches as opposed to a continuous flow by a medium passing through a compression, condensation, and evaporation thermodynamic cycle. In heating a liquid, the cycle is formed by a condenser 7 in the liquid heating tank 8, an evaporator 1 warmed by circulating water in a tank 2, and a compressor 4 driven by a motor 5. The filling and emptying of tank 8 is effected by the operation of valves 15 and 16 by solenoids 19 and 20. These solenoids and the motor 5 are caused to operate by a float 25 and thermostat 26 so that the tank is first filled with liquid, then the motor 5 is started so that the liquid is heated, then the motor is stopped, and the batch of liquid emptied into the tank 11. A float operated switch, not shown, stops the motor 5 when tank 11 is full. The apparatus is adapted for cooling by transferring the condenser 7 to tank 2 and the evaporator 1 to tank 8.
Patent GB-353180-A (GB)
Title: Improvements in or relating to the manufacture of sponge iron
IPC: C21B13/00
Filed: 1930-06-12
Abstract: Sponge iron is obtained by heating a mixture of ore and less than 25 per cent of its weight of pure carbon for several hours in the retorts of a regenerative coke oven.  Reducing gas is introduced into the retorts during the latter part of the reduction in order to remove oxygen completely, and the sponge iron is removed in a horizontal direction by means of a box-like ladle or by pushing it into a receptacle adapted to protect it from atmospheric oxidation. A reducing temperature of 1000 DEG  C. or above is specified.  The charge is heated by combustion of gas in adjacent chambers, and the gas for reduction may be wholly or partly produced in the retorts.
Patent GB-531082-A (GB)
Title: Explosive powder and manufacture thereof
IPC: C06B29/12
Filed: 1939-06-21
Abstract: 531,082. Explosives. PERT, H. G. June 21, 1939, No. 18128. [Class 9 (ii)] An explosive powder is formed of the following ingredients in the stated proportions; sucrose 24 lbs., potassium nitrate 33 lbs., finely-powdered coal 10 1bs. and potassium chlorate 33 1bs. The explosive powder is made by dissolving the sucrose (cane or beet sugar) and potassium nitrate in hot water and mixing therewith finelydivided coal or anthracite, the potassium chlorate being then added and the whole being mixed until the mass hardens for subsequent granulation and drying. The sucrose is first dissolved in warm water and the temperature raised before the potassium nitrate is added. Specification 19112/05, [Class 9], is referred to.
Patent GB-849296-A (GB)
Title: Improvements in or relating to cleaning systems for machines for filling bottles or other containers with liquid
Inventor: ARBER ROWLAND SACKVILLE PRESTO
IPC: B67C3/00
Filed: 1958-06-06
Abstract: 849,296. Bottling. U.D. ENGINEERING CO. Ltd. June 5, 1959 [June 6, 1958], No. 18203/58. Class 125(2). [Also in Group XXIII] In a machine for filling bottles or other liquid containers comprising a reservoir 10, a number of delivery heads 11 at the bottom of the reservoir, each having valve means for controlling the flow of liquid through it, a support 16 for locating the bottles beneath the delivery heads 11 and means for effecting relative up and down movement between the heads and supports so that the latter are brought successively into engagement with the mouths of the bottles and in doing so operate the valve means, means are provided for supplying the reservoir with a cleaning liquid and the relative up and down movement between the heads and supports is arranged to actuate a displacement device associated with each head so that relative movement in one sense causes the displacement device to be filled with cleaning liquid flowing downwardly from the reservoir through the head and movement in the opposite sense expels the liquid from the displacement device through the head and into the reservoir. The displacement devices, Fig. 2, are formed from rubber and each has an upper part 54 with a flange 55 arranged to snap into a circumferential groove 57 in the lower part 47 of the head 11, a cylindrical stem portion 61 with a comparatively rigid yoke piece 62, and an intermediate thin conical wall 60. The level of the cleaning liquid within the reservoir 10 is arranged so as to remain above the top of the air release tubes 13 so that the liquid can descend both through each tube 13 and through each conduit 12 into each displacement device when it is in the condition shown in Fig. 2. When the head descends, the thin conical wall 60 is forced up into the position shown by the chain line 60a and the cleaning liquid then passes up the tube 13 and through the space between the seat 14 and the lower part 15 of the tube 13 and that part of the rim portion 53 of the valve member 52 which has been forced up by a peg 59 carried by the spider member 58.
Patent GB-1474331-A (GB)
Title: Inorganic hydraulic bonding compositions and use thereof
IPC: C04B24/22
Filed: 1975-05-01
Abstract: 1474331 Cement additive CASSELLA FARBWERKE MAINKUR AG 1 May 1975 [2 May 1974] 18212/75 Heading C1H [Also in Division C3] An additive for water-setting inorganic construction materials consists essentially of a water-soluble condensation product of formaldehyde or a formaldehyde donor with a diphenol of the formula in a molar ratio of at least 1 : 5 wherein X is a direct bond or -SO 2 -, -SO-, -S-, -CH 2 -, -CO-, or -C(CH 3 ) 2 -, n and n<SP>1</SP> are each 1 or 2, m and m<SP>1</SP> are each 0, 1 or 2 and Me and Me<SP>1</SP> are each a proton or an alkali metal or alkaline earth metal or ammonium cation, and optionally with a water-solubility increasing amount of a modifier selected from water soluble sulphites, pyrosulphites and sulphamates and salts of a phenol sulphonic acid or naphthalene sulphonic acid; a 20% wt. aqueous solution of the condensate showing a surface tension of 60-80 milli-Newtons per meter at 25 C. The molar ratio of the modifier to diphenol generally ranges from 1 : 100 to 1 : 2. The modifier reacts with the methylol groups in the condensate. Suitable water-soluble modifiers are the sodium, potassium or ammonium salts of the above listed modifiers. The condensation may be carried out at 60-140 C. at a pH of 3-12 and the resulting aqueous condensates may be spray dried. The condensates can be added as an aqueous solution or in powder form to water-setting inorganic construction materials or to an ingredient thereof in an amount of 0À05-5% wt. based on the weight of the binder in the material to improve the spreadability and/or strength thereof. Suitable construction ingredients are hydraulic or Portland cement, sand, gravel, plaster of Paris, calcium carbonate, stone, slaked lime, gypsum or burnt magnesite, the materials being in powdered form and suitable construction materials are cement, concrete, lime mortar and plaster. In the examples aqueous condensates prepared by reacting pure 4,4<SP>1</SP>-dihydroxydiphenylsulphone or the sulphonated form thereof, or crude dihydroxy diphenylsulphone with aqueous HCHO and optionally aqueous sodium sulphamate or sodium hydrogen sulphite as modifier, with presence of NaOH are added either to a cement mortar comprising coarse and fine sand, Portland cement and water, or to a mixture of plaster of Paris and water.
Patent GB-881645-A (GB)
Title: Improvements relating to cage or skip guides for mine shafts
IPC: E21D7/02
Filed: 1957-12-11
Abstract: 881,645. Guide rails for mine cages. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Dec. 11, 1957 [Dec. 11, 1956], No. 18226/61. Divided out of 876,369. Class 78 (3). A cage or skip guide in a shaft comprises a plurality of guide rails, each divided into sections, for example 1a, 1b, each section being pendantly supported from its upper end only. In modifications, two or more rail sections are joined end to end by welding or by means of fish-plates and are suspended from the upper end of the uppermost section only.
Patent GB-991917-A (GB)
Title: Translucent films and methods of making them
IPC: B29C67/00
Filed: 1961-05-19
Abstract: 991,917. Rendering clear films translucent. MINNESOTA MINING & MANUFACTURING CO. May 19, 1961 [May 19, 1960], No. 18408/61. Drawings to Specification. Heading B5B. [Also in Division G2] Clear transparent smooth surfaced films which when creased and re-flattened are rendered opaque along the crease line, are rendered translucent by subjecting the film to a progressively advancing pronounced localized difference in the elongation of one surface of the film with respect to the opposite surface, for example, by passing the film under tension over and in intimate contact with a smooth edge which is at an angle to the direction of travel of the film in such a manner that the path of travel of the film undergoes an abrupt change of direction while the film is travelling over the edge. The film may be drawn over the edge two or more times and the opposite faces of the film may alternately be brought into contact with the edge in two or more passes in alternate directions. The film may additionally be uniformly stretched, either during its passage over the edge or subsequently. The treatment may be such that the light transparency of the film is reduced to not more than 10% of its original value. The density of the treated film may be at least 1% less than that of the untreated film. A particularly satisfactory material for the film is unplasticized polyvinyl chloride mixed with small proportions of stabilizers and waxy lubricants and may be essentially non - oriented. Alternatively the film may be formed by melt-extruding polypropylene or polyethylene terephthalate, or solventcasting polystyrene. Transparent polyamide and polyethylene films cannot be rendered translucent by the method of the invention. Only films which become opaque along the fold lines when creased can be rendered translucent by the method of the invention.
Patent GB-298279-A (GB)
Title: Process for the manufacture of amino anthraquinones, their homologues and substitution products from the corresponding leuco-amino compounds
IPC: C09B1/515
Filed: 1927-07-11
Abstract: 298,279. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). July 11, 1927. 1 : 4-Diaminoanthraquinones. - 1 : 4-Diaminoanthraquinone, its homologues and derivatives, including alkylamino and hydroarylamino derivatives, are obtained in the form of the free bases by oxidation of the corresponding leuco-bases with a substance yielding oxygen in presence of a catalyst having an acid or basic reaction, such as triethylamine, piperidine, thionyl chloride, benzovl chloride and the like. Where an acid is employed, its nature and the amount used are such that no substantial quantity of a salt of the leuco-base is formed. In examples, leuco-1:4- diaminoanthraquinone is oxidized by nitrobenzene in the presence of a little thionyl chloride, giving 1 : 4-diaminoanthraquinone : and leuco-1 : 4-diamino-5 : 8-dihydroxyanthraquinone is oxidized by nitrobenzene in presence of a trace of piperidine. The use of a solvent such as trichlorbenzene, with the addition of the requisite quantity of nitrobenzene for effecting oxidation, is also mentioned.
Patent GB-1187344-A (GB)
Title: Combined Rigid Shell Helmet and Ear Cup
IPC: A61F11/14
Filed: 1968-04-18
Abstract: 1,187,344. Helmet with ear cups. GENTEX CORP. 18 April, 1968 [9 May, 1967], No. 18485/68. Heading A3V. A combined rigid shell helmet and ear cup has co-operating means for attaching the ear cup to the shell and resilient means disposed between the ear cup and the shell. In one embodiment, Fig. 3, the ear cup 14 is connected to shell 12 by means of a domed washer 82 which covers an orifice 13 and is linked to support means 75 for the cup by a screw 84 enabling movement laterally and rotationally to suit the wearer. Resilient pads 92, 93 and 94 are interposed between the ear cup and the helmet shell, the pads being compressed on tightening the screw 84 thus providing sufficient friction to hold the ear cup in place. A second embodiment, Fig. 6, has pads 92<SP>1</SP>, 93<SP>1</SP>, 94<SP>1</SP> linked to each other, the shell 12<SP>1</SP> and ear cup 14<SP>1</SP> by means of touch and close hook and loop fasteners. A drawstring 95a enables the cup to be moved nearer the shell and a degree of lateral and rotational movement is provided by separating the hook and loop fasteners then reassembling at a different orientation of the ear cup.
Patent GB-1072074-A (GB)
Title: Irradiation apparatus
IPC: G21F5/015
Filed: 1965-05-03
Abstract: 1,072,074. Irradiation apparatus. SULZER BROS. Ltd. May 3, 1965 [June 1, 1964], No. 18558/65. Heading H5R. Irradiation apparatus comprises a shielding block of radiation-absorbent material in which is contained a source of radiation and a piston member, extending through the block and provided with at least two chambers in which material for irradiation is positioned, the piston being movable horizontally to locate the chambers adjacent or away from the source. In one embodiment (Fig. 1), the piston comprises three lead-filled cylindrical shielding members 12, 13, 12 and two chambers 14, 14<SP>1</SP> whose half-cylindrical walls connect the members 12, 13, 12. The piston is mounted on eighteen rollers 16 and moves in the cylindrical passage in lead-shielding block 3. The passage has a wider part 6 half-way along in which it receives a hollow cylindrical cage 7, of rod-like source elements (e.g. Co60), which surrounds the piston. The piston is driven by spring-urged, powered, friction rollers 20, to bring material located in a chamber, into the irradiation zone 6. In a second embodiment (Fig. 4, not shown), the piston (32) is of toroidal shape, the plane of which is horizontal and it is mounted, again on rollers, in a toroidal recess (30) in the shielding block. The piston has four sample chambers (34) each of which can be brought into an irradiation zone (36), similar to that 6 of Fig. 1, by rotation of the toroidal piston about its central vertical axis. The cage (37) of source elements has a ring of gear teeth (38) through which the cage can be driven, by a motor (43), to rotate around a chamber (34) in order to provide even irradiation. The arrangement allows irradiation of a single sample, or batch of samples, or a series of three, the rotation of the piston being controlled automatically.
Patent GB-242342-A (GB)
Title: Improvements in wireless telegraph and telephone aerials
IPC: H01Q11/04
Filed: 1924-08-05
Abstract: 242,342. Franklin, C. S. Aug. 5, 1924. Aerials.-In order to secure a pronounced directional effect from aerials of the type that are electrically long in comparison with the signal wave-length, provision is made for suppressing radiation from every alternate half wavelength of the stationary-wave formation along the aerial. Fig. 2 shows, for example the normal conditions existing along an aerial A one and a. half times the signal wave-length, the stationarywave formation being shown by the curve B, whilst the polar diagram of radiation is illustrated by the six-point curve C. By doubling back on itself the central stationary-wave segment of the aerial, the resultant polar curve is altered to the form shown in Fig. 3. Alternatively, the doubled-back portion may be replaced by an electrical equivalent, such as an inductance coil with or without a parallel condenser, substantially tuned to the fundamental wavelength. The longer or higher the aerial, modified in this manner, the sharper is the directional effect. The invention may be applied to aerials of the type described in Specification 226,246.