baber/WOPTO huggingface dataset:
Patent GB-516268-A (GB)
Title: Improvements in or relating to gas mask filters and the like
IPC: A62B19/00
Filed: 1938-07-22
Abstract: 516,268. Respiratory filters. VOVES, F., FIEDLER, B., and ECKHARDT, V. July 22, 1938, No. 21849. [Class 81 (ii)] The effective body of a filter insert or filling for protection against noxious gases, vapours and solids is formed from a felted mass comprising a homogeneous mixture of a fibrous material, e.g., cellulosic material produced from wood in paper mills, and substances capable of effecting absorption and adsorptive removal of the noxious materials, e.g., potash and active charcoal respectively. The material may have a moisture content of say up to 20 per cent. or more. For producing the felted mass, the fibrous substance, active carbon and a solution of potash are mixed, and the thin paste is poured on to a sieve to form a slab. As shown (Fig. 5), the filter insert for a gas mask filter may comprise a series of rings h of the material joined alternately around the inner and outer peripheries by rings j<1>, j and spaced by spaces k, there being no central aperture in the end layer h<1>. The insert is held in the case by supports m, n. The bottom o of the canister is removable. Another form of insert consists of a number of chambers for impure air communicating with the outer atmosphere at one end of the filter, such chambers alternating with chambers for purified air communicating directly with the interior of the mask at the other end of the filter. Fig. 3 shows a known form of filter consisting of a layer f of porous material mixed with a chemical absorptive material, and a filter body g consisting of a mixture of active carbon and cellulose. Other known forms are illustrated.
Patent GB-1505037-A (GB)
Title: Triazolopyridine compounds
IPC: C07D317/12
Filed: 1976-05-26
Abstract: 1505037 3 - Substituted 3H - 1,2,3 - triazolo- [4,5-11]pyridines MERCK & CO Inc 26 May 1976 [28 May 1975] 21890/76 Heading C2C The invention comprises the title compounds in which the 3-substituent (R) is pyridyl, C 1-3  alkylpyridyl, C 3-6  cycloalkyl or optionally substituted Ph, and a process for preparing them in which a 3-amino-2-RNH-pyridine is diazotized. These products, and their analogues in which R is separated from the ring-system by (CH 2 ) 1-3 , have analgesic, antiinflammatory and antipyretic activity. Other starting materials and intermediates are also described.
Patent GB-844821-A (GB)
Title: Photographic camera for making panoramic pictures
IPC: G03B37/04
Filed: 1958-07-08
Abstract: 844,821. Producing panoramic pictures. SMITH, T. F., and CARNEY, R. E. July 8, 1958 [July 19, 1957], No. 21899/58. Classes 97(1) .and 98(1) Real images of different parts of a panoramic scene are formed in juxtaposition by separate objectives and the combination of images rephotographed. The real images may be juxtaposed in such a way that the combined image has a shape suitable for photographing in the normal frame space of a kinematograph camera. The proper relative disposition of the parts of the picture is restored during projection. In the form shown in Fig. 1 each of the objectives 30, 31, 32, 33 receives light from a different 45 degrees sector of the scene by reflection from one of a pair of mirrors 40, 40a, 41, 41a, 42, 42a, 43, 43a and images that part of the scene on the face of one of a number of condenser lenses 51, 52, 53, 54. Each condenser may be a single pianoconvex lens or a pair of plano-convex lenses as shown. The lenses may be achromatic or anastigmatic. The emergent light beams pass through a collimating lens 61 and an objective 60 which forms images of the images formed by the objectives 30 &c. within the normal frame space of a film 56. The objectives 60 and 30 &c. are axially adjustable for focusing. A modified arrangement uses only three objectives 30 &c., one being a wide angle lens for forming an image of a central 90 degrees sector. The condenser system is in three sections to correspond. The division of the field of view may be effected by prisms instead of reflectors. Another arrangement uses assemblies 133, 134, Fig. 14, each baving a conical portion connecting cylindrical portions housing respectively the objective lenses and the associated condensers. The objectives are directed to different parts of the scene and their images are re-photographed by a camera 130 by reflecting the light beams from mirrors 151, 152, 166, 168. Another similar arrangement uses three objective and condenser arrangements, one of which is directed at a central sector and passes its emergent light beam to the camera 130 directly. Each objective and condenser system may have an adjustable mask for limiting its field of view.
Patent GB-826922-A (GB)
Title: Aromatic sulphonyl chlorides
IPC: C07D285/28
Filed: 1957-05-01
Abstract: The invention comprises disulphonyl chlorides of the formula <FORM:0826922/IV (b)/1> in which R is a halogen atom such as chlorine, bromine or fluorine, a C1-5 alkoxy group or a nitro group and R1 is hydrogen, C1-5 alkyl, or a C1-6 carboxylic acyl group such as C1-6 alkanoyl, or a phenylacetyl group, and their preparation by chlorosulphonating the corresponding substituted aniline in the presence of an alkali-metal halide such as sodium chloride.  The reaction is suitably carried out by adding the aniline derivative to chlorosulphonic acid dropwise, subsequently adding the alkali-metal halide in small portions and heating to 100-200 DEG  C.  Examples describe the preparation of 5-chloro-, 6-chloro-, 5-bromo-, 5-methoxy- and 5-fluoroaniline-2 : 4-disulphonyl chloride and N - methyl - 5 - chloroaniline - 2 : 4 - disulphonyl chloride, by disulphochlorination of the corresponding substituted aniline and N-phenylacetyl-5-fluoroaniline-2 : 4-disulphonyl chloride by the action of phenylacetyl chloride on 5-fluoroaniline-2 : 4-disulphonyl chloride.  Specification 826, 923 also is referred to.
Patent GB-413130-A (GB)
Title: Manufacture of gas
IPC: C10J1/207
Filed: 1933-08-04
Abstract: 413,130. Gas manufacture. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Air Reduction Co., Inc. ; 60, East 42nd Street, New York, U.S.A.) Aug. 4, 1933, No. 21997. [Classes 55 (i) and 55 (ii).] A gas consisting mainly of carbon monoxide and hydrogen is obtained by supplying a carbonaceous fuel such as powdered coal or oil together with oxygen to a heated reaction chamber to which superheated steam with or without a further fuel supply is subsequently delivered. In an example, 12 pounds of powdered coal per minute with 8À4 pounds of oxygen are used for the initial reaction in which carbon monoxide is obtained, the oxygen being under a pressure of about 5 pounds per square inch. 6À5 pounds of steam per minute are delivered to the reaction chamber, and meet the carbon monoxide carrying fuel particles at between 2000 and 3000‹ C., when the secondary reaction is completed. The fuel is supplied through a conduit 6, and oxygen by a pipe 11 to the reaction chamber 5 provided with nozzles 12 through which the steam and additional fuel are supplied, the steam reacting with the unconverted fuel. The gases generated pass through a dust separator 14 to a wash box 17 and holder 19.
Patent GB-300709-A (GB)
Title: Improvements in apparatus for cleaning surfaces such as ceilings, walls or the like
IPC: A47L11/38
Filed: 1927-08-22
Abstract: 300,709. Makins, W. B., and Brown & Makins, Ltd. Aug. 22, 1927. Disc apparatus.- Apparatus for cleaning ceilings, walls, &c. in buildings comprises a rotary rubbing device consisting of a brush, brick, sandpaper, or other abrading agent 12 detachably mounted on a spindle 5, machine or hand driven, and surrounded by a chamber 4 connected to a liquid supply pipe 6. Liquid is supplied by channels 13, 14 to the brush &c., which works in a shield 15 of aluminium &c. and is connected to suction apparatus 16a. If the rubbing element 12 consists of sandpaper over a backing, the sandpaper may have an automatic or manual feed so as to change the working surface. The shield 15 may be double walled, the intervening space being under suction which may be intermittent. The edge of the shield may have a rubber insertion or a series of fingers so as to be liquid tight. Where a brush is used, the stock may be stepped or the bristles arranged to form a central concavity.
Patent GB-372635-A (GB)
Title: Improvements in or relating to door-operating mechanisms
IPC: E05F15/14
Filed: 1931-08-04
Abstract: 372,635. Door-operating mechanism. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of McCormick, H. V. ; 573, Lafayette Boulevard, Long Beach, New York, U.S.A.) Aug. 4, 1931, No. 22122. Convention date, Aug. 8, 1930. [Class 65 (i).] In an electric operating mechanism for sliding doors, a motor-driven screw is placed vertically at the side of the door opening, and a nut working on the screw is connected by a link to a door operating lever. The invention also provides a system of levers and links for operating a pair of centre-opening doors in which each door comprises fast- and slow-moving panels. The motor 41 drives a shaft 44 having a screwthreaded portion engaging a nut 46, which is connected by a link 49 with the door operating lever 10. The nut 46 has projections engaging a guide rail to prevent rotation, and is fixed to tubular members 53, 54 which slide in bearings fixed to the door frame and serve also to cover the screw ; the shaft 44 bears in a bush in the upper end of the member 54. The lever 10, pivoted to the door frame, operates the fast and slow panels 5, 6 by toggle levers 11, 12 in the usual way, and the motion of the panel 6 is transmitted to the other slow and fast panels 3, 4 by lever 26, link 29, lever 25 and links 27, 28. Specification 364,846 is referred to.
Patent GB-271695-A (GB)
Title: Improved non-return valve for forced lubrication pipes
IPC: F16N23/00
Filed: 1926-09-08
Abstract: 271,695. Michalk, O. Sept. 8, 1926. Fluid-actuated valves; leakage, preventing.- In a system wherein lubricant is supplied to a locomotive by a pump, uniformity of lubrication under different loads is secured by arranging in each delivery pipe, near to the point of application of the lubricant, a non-return piston valve b, Fig. 1, which is loaded solely by a spring c, the pressure of which is slightly greater than the maximum steam pressure in the part served through the valve, the spring being arranged in a chamber which does not communicate with the part supplied. As shown in Fig. 3, a diaphragm f is interposed between the piston b and spring c to prevent leakage, and the piston is bored to allow the lubricant to act directly on the diaphragm, the piston being maintained in contact therewith by a weak spring k. As shown in Fig. 4, a passage g<1> leads from the space g between the piston b and diaphragm f to a cavity g<11> closed tightly by a hollow plug h. Oil leaking into the space g compresses the air therein and moves the diaphragm out of contact with the piston, whereby the load on the diaphragm is relieved.
Patent GB-1317342-A (GB)
Title: Preparation of alkali metal benzoates
IPC: C07C51/41
Filed: 1971-04-19
Abstract: 1317342 Alkali metal benzoates DYNAMIT NOBEL AG 19 April 1971 [20 Feb 1970] 22204/71 Heading C2C A process for the preparation of an alkali metal benzoate from starting material comprising by-products from the manufacture of methyl esters from the acids resulting from the oxidation of mixtures of p-xylene and methyl toluate, comprises partially separating said starting material to obtain a mixture containing at least 80% by weight of methyl benzoate, heating said mixture at a temperature of 150-250‹ C. with 0À1-10% by weight of an acidic fuller's earth, separating the liquid fraction, fractionally distilling said liquid fraction to obtain a methyl benzoate-rich constant boiling fraction, saponifying to completion said constant boiling fraction with aqueous alkali metal hydroxide in such a manner that said alkali metal hydroxide is neutralized, subjecting the aqueous mixture so obtained to steam distillation until no more volatile material is removed and recovering alkali metal benzoate from the substantially neutral aqueous mixture by evaporation of water therefrom. An example is furnished.
Patent GB-1336826-A (GB)
Title: Hand tool handle and method for its manufacture
IPC: B29C45/34
Filed: 1972-05-11
Abstract: 1336826 Hand tool handles; injection moulding STANLEY WORKS 11 May 1972 [12 May 1971] 22207/72 Heading B4K and B5A A handle 12 for a hand tool, e.g. hammer 10, comprises a grip supporting member 26 preferably of tubular form with a plug 34 of plastics material driven into its free end, and a hand cushion grip 40 moulded in place around the plug and grip supporting portion. The mould halves 60 have conventional parting line gas vents and a multiplicity of small pins 64, Fig. 4, which project into the mould cavity 50 to form rows of grip-facilitating perforations 42 in the grip member 40. Each pin 64 has flats 66 formed thereon to provide further gas escape vents 68. The flash formed at the parting line and perforations 42 is sufficiently small in dimensions to require no further machining step for its removal. The grip 40 may be formed from natural or synthetic elastomers with or without flocking, e.g. polyvinyl chloride with about 2 to 10% nylon flock and a suitable foaming agent. The tubular handle member 26 is preferably coated with an adhesive before the moulding operation. The plug 34 is of a durable plastics material which is dimensionally stable at the moulding temperature and may be of a polyphenylene oxide resin.
Patent GB-504246-A (GB)
Title: Improvements in and relating to apparatus for feeding articles such as lamp bases
IPC: H01J9/24
Filed: 1938-07-26
Abstract: 504,246. Delivering lamp bases &c. from hoppers. BRITISH THOMSONHOUSTON CO., Ltd. July 26, 1938, No. 22208. Convention date, July 28, 1937. [Class 78 (i)] Electric-lamp bases 12 comprising a cylindrical threaded shell 12<1> open at one end and closed at the other by an insulating plug 17, are fed from a hopper 13 through a shoot 16 to members 11 on a turret 10, the shoot being provided with means for inverting such bases as fall down the shoot with their open and foremost. The feed is effected by up-anddown movement of the shoot, the latter being connected to a block 20 which is reciprocated on a column 23 by a driving member 25. During upward movement of the shoot, a spring-controlled finger 27 provided with a roller 28 engaging the edge of an aperture 29 in a cam plate 30 moves from the position shown in Fig. 5 to that shown in Fig. 4, so as to engage a base 12. This finger is withdrawn during the following downward movement of the shoot so as to release the base which falls on to a spring-pressed finger 31. This has a roller 32 engaging the edge of another aperture 33 in the cam plate 30, and is withdrawn from the shoot in the succeeding upward movement to allow the base to fall on to a member 34. Should this base have its open end foremost, its shell is engaged by the hook 42 on this member 34 and the base is inverted as shown in Fig. 5, when this member is withdrawn by a cam roller 49. Means is provided for releasing the base 12a, Fig. 5, should it catch on the base 12b. A plunger 18 on the block 20 enters the hopper during the upward movements of the shoot and agitates the lamp bases to prevent them forming a bridge over the discharge aperture 13<1>. The feeding of the lamp bases may be stopped by means of a screw 48.
Patent GB-1188804-A (GB)
Title: Apparatus for Reproducing Information from Photon Emissive Storage Mediums.
Inventor: DUWE ROBERT WILLIAM
IPC: H01J29/89
Filed: 1967-05-12
Abstract: 1,188,804. Electron-beam playback. MINNESOTA MINING & MFG. CO. 12 May, 1967, No. 22232/67. Heading G5R. Apparatus for electronically retrieving recorded information from a recording medium having a differentially photon-emissive, electronbeam responsive, surface, the differential photon emission being representative of the information, comprises, in combination, means for generating an unmodulated electron beam and for relatively moving it over predetermined portions of the medium, a reflector for reflecting in a direction generally away from the electron source the differential photon emission coming from the surface of the medium, and means for sensing the reflected differential photon emission and for converting it into a corresponding electric signal output. In the embodiment of Fig. 2, an unmodulated electron beam 12 is focused by an electronoptical system (not shown) on a pre-recorded tape 23 moved, by transport mechanism 26, across a platform 24 either discontinuously or continuously. Besides such movement, or instead of it, (provided there is relative movement between beam and tape), the beam 12 is caused to move over predetermined portions of a scan field on platform 24, in a raster pattern, by an electromagnetic deflection yoke 20. Photons 31 emitted in response to electronic excitation by beam 12 are reflected by a reflector 27 (having an aperture 32 for the beam) composed of aluminium, silver or the like, and are collected by a photo-multiplier 29 which gives an output representative of the signal. In a modification (Fig. 4, not shown), the deflection yoke and the reflector are one composite structure. In another modification, the reflector has an approximately double-parabolic cross-section, so that photons directed back near the incident electron beam suffer a double reflection (Figs. 7, 8, not shown). In another modification the reflector resembles that of Fig. 2, but consists of two narrow symmetricallydisposed segments instead of the full circle (Figs. 9, 10, not shown). In the embodiment of Fig. 6 the pre-recorded medium 52 is opaque and stationary; two reflectors 54, 56 with corresponding photomultipliers 57, 58 are provided. This configuration provides two individual detectable images and thus greater reliability of signal detection. In Fig. 5 the photon emission passes through a window 44 in enclosure 37 to a photo-cell 36 outside. In all embodiments the enclosure is evacuated. The recording medium may be a coating including a fluorescent material, an aluminium foil; the recording process may be by a scanning electron beam, or by a non-scanning electron beam projected through a mask, or by ultra-violet light. Thereafter, each sample is heated to 150‹ C., until a black colour is formed selectively in the irradiated area.
Patent GB-718475-A (GB)
Title: Improved control system for electric power generator plants
IPC: H02P9/08
Filed: 1952-09-05
Abstract: 718,475. Starting prime-movers; generating arrangements. GENERAL MOTORS CORPORATION. Sept. 5, 1952 [Sept. 28, 1951], No. 22323/52. Drawings to Specification. Class 38(4) A starting and control system for an alternator driven by an internal combustion engine comprises a paralleling switch for connecting and disconnecting the alternator to or from a power line, an electric starter motor for the engine, means to de-energize the starter motor, an engine governor normally acting to stop the engine, a solenoid energizable to render the governor operative to cause the engine to run at no-load speed, the governor having electrical speed setting means to cause operation at no-load and full-load speeds, and limit switches operable by the governor to de-energize the speed setting means. The no-load limit switch serves also to control the opening of the paralleling switch and to de-energize the governor solenoid. Control means operable upon closure of the paralleling switch energize the speed setting means to cause operation of the engine at full-load speed and to retain the governor solenoid energized. The system also comprises an electrical master control, including a time delay stop relay, and de-energizable to energize the speed setting means to cause operation of the engine at no-load and energizable to energize the starting motor and governor solenoid. The starter motor is de-energized by means responsive to generator voltage, which means also controls the paralleling switch. The system further includes a motor-operated recloser switch having contacts to energize intermittently the master control and contacts for stopping the recloser switch motor, engine starting switch means to energize the recloser switch motor, and engine stop means which become effective upon defective operation of the engine or generator to stop the engine and initiate electrical warnings by shunting the master control. The time delay stop relay limits the duration of the energization of the starter motor. The system also includes automatic fuel control for bringing the engine to synchronous speed and automatic control of the closure of the paralleling switch.
Patent GB-222475-A (GB)
Title: Improvements in ball or roller cages for ball or roller bearings
IPC: F16C33/46
Filed: 1924-09-23
Abstract: 222,475. Bugatti, E. Sept. 26, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Ball and roller bearings.-Friction between the spacing cage for the rolling elements and the race rings of a bearing is minimized by one or more rows of balls m between the rubbing parts. The balls m may contact with either the inner or outer race ring, as shown, or they may be placed between radial end flanges on the cage and the sides of either race ring.
Patent GB-1465828-A (GB)
Title: Lamination assembling apparatus
IPC: B65H3/44
Filed: 1974-05-20
Abstract: 1465828 Assembling laminations B L NIEDER and D L TYSON 20 May 1974 [19 Nov 1973] 22467/74 Heading B3A Apparatus for assembling laminations I, E into a magnetic structure comprises a nest member 38 for receiving laminations being assembled into a magnetic structure and for supporting the structure, a plurality of magazines 30a, 31a, 30b, 31b, Fig. 1, each for retaining a corresponding stack of a corresponding type of lamination I, E, and means for sequentially moving a pair of laminations I, E in tandem from positions disposed in corresponding ones of said magazines to intermediate positions between the respective magazines and the nest member and from the intermediate positions to assembled positions at the nest member. The magazines are defined by uprising members 34a, 34b-37a, 37b and the nest member is bounded by frame members 39, 40, Fig. 11, which house jaw members 43, 44 operable via a control lever 49. Drive for the apparatus is supplied by a motor 55 and comprises a shaft 56, sprocket 58, chain 59 and drive block 64, Fig. 7, The drive block is reciprocated along guide bars 65, 66 and imparts motion to slide bars 70, 71 via a drive pin 68. The slide bars are connected to lamination pickers 74a, 75a, Fig. 9 (not shown), and lamination insertion devices 101. The driving connection of the pickers is established by a pivot pin 80 and a limiting pin 82. A picker control arm 84 moves along rollers (85), Fig. 5 (not shown), and is connected to a corresponding slide bar by links 89, 90, 95, 96. In operation, each picker pivots upwardly to remove a lamination I, E from a respective magazine and move the laminations towards the insertion devices 101 which are driven by the slide bars. The insertion device moves between an erect position for engagement with a lamination to be inserted, Fig. 14 (not shown), and a retracted position withdrawn from lamination engagement, Fig. 15 (not shown). A pivot pin 106 is provided on the device 101 for co-operating with portions 111, (112) of the nest member 38 and subframe member 24. The insertion devices are passed beneath the structure supported in the nest member and the laminations are guided upwardly on the jaw members 43, 44 by cammed surfaces 121, 122. A height sensing member 135 actuates a member (136), Fig. 3 (not shown), when the required number of laminations have been inserted and a switch (138) interrupts operation of the apparatus. Cam surfaces 140, 141 then cam the jaw members 43, 44 apart to withdraw the members from the core 45, Fig. 4. The nest member is interchangeable with nests of different dimensions for accommodating other sizes of laminations and cores.