baber/WOPTO huggingface dataset:
Patent GB-1178431-A (GB)
Title: Improvements in or relating to Push-Button Mechanisms.
IPC: H03J5/32
Filed: 1967-01-11
Abstract: 1,178,431. Releasable fastenings. PHILIPS ELECTRONIC ,& ASSOCIATED INDUSTRIES Ltd. 11 Jan., 1967 [14 Jan., 1966], No. 1573/67. Heading E2A. A latching bar 4 for one or more operating keys 8, e.g. of a tape recorder, is moved to latching position, against the action of a spring 5, on depression of an operating key through an intermediate resilient member and is cammed in the opposite direction to release the operated key by a release key 9. As shown, each intermediate member is a slide 13 loaded by a compression spring but it may be a blade spring carried by, and arranged at an angle to, the latching bar. The latching bar has portions which move over or under projections 10 in the stems of the operating keys 8 to retain the keys in depressed or undepressed state.
Patent GB-1043922-A (GB)
Title: Improvements in respirators
Inventor: PHILLIPS LEWIS RAYMOND
IPC: A62B25/00
Filed: 1964-01-14
Abstract: 1,043,922. Respirators. SIEBE GORMAN CO. Ltd. Jan. 13, 1965 [Jan. 14,1964 No. 1584/64. Heading A5T. A respirator comprises a canister 1 containing a filtering medium for the removal of toxic substances, and a space 3 for receiving the gas passing through the filtering medium and porous membrane 9 and in communication with mouthpiece unit 4 via flexible tube 11 connected to vertical tube 2 such that the flexible tube 11 has a telescopic relationship with the tube 2 by which the effective length of the two tubes when the respirator is not in use is considerably less than the length when the respirator is in use. The tube 11 is compressible such that it is accommodated wholly within the tube 2 when the respirator is not in use. The tube 11 is held in compressed condition by hood 13 clipped on canister 1 such that the mouthpiece unit 4 is maintained on the flanged end 2b of tube 2. The mouthpiece unit comprises inhalation and exhalation valves 12, 6, and has a portion insertable into the mouth and a portion surrounding the mouth.
Patent GB-159733-A (GB)
Title: Improvements relating to motor caravans
IPC: B60D1/50
Filed: 1920-01-17
Abstract: 159,733. Riley, W. A. J., and Eccles, A. J. Jan. 17, 1920. Couplings; stands or supports. - A motor vehicle is coupled to a two-wheeled caravan by means of a laminated spring b secured to the caravan a, as shown, or to the motor vehicle, or to both. A strut c mounted on a. pivot f is secured in the vertical position by a pin e when required for supporting the caravan.
Patent GB-1135923-A (GB)
Title: A press, particularly a hydraulic press for dies
Inventor: WILLIAMSON FLOYD MITCHELL
IPC: B21D22/00
Filed: 1966-01-13
Abstract: 1,135,923. Stamping. DI-DRO ENG. CO. 13 Jan., 1966, No. 1650/66. Heading B3Q. A press comprises an hydraulic cushion consisting of a piston-and-cylinder structure 12, 14, a tank 24 for supplying low-pressure hydraulic fluid, a booster 29 for increasing the fluid pressure and valve means 28 connecting the tank and booster, the valve means including a passage 32, 74, 76, 70 between the tank 24 and cylinder 12 for supplying fluid at low pressure when the press is open, a passage 32, 34 between the tank and booster having a check valve 38 for supplying fluid to the booster, a passage 44, 80, 70 between the cylinder and booster, including valve means 64 for closing passage 76 and increasing the fluid pressure in the cylinder on actuation of the booster, and a passage 70, 76, 98, 108, 32 between the cylinder and tank including valve means 100, 102 for permitting flow of fluid from the cylinder to the tank when the cylinder-pressure reaches a predetermined value determined by the valve means with the booster actuated. The piston 14 may extend a die member for effecting a preforming operation on descent of the pressram and/or a stripping operation when the ram is raised. The piston may resist movement of a die upon closing of the press. As shown, one or more pistons 14 are mounted on the press-ram for extending a stripping pin 16 through a die 18 to strip a workpiece 22 as the die is raised. As the press-ram moves down, the ejector pin 16 is in an extended position, backed by hydraulic liquid at tank-pressure supplied along line 30. The pin is retracted by engagement with the workpiece. After the pressing operation, a cam 116 moving with the withdrawing pressram, closes a switch 120 for actuating a valve 112 to supply compressed-air beneath the boosterpiston 54. The boosted pressure raises valve 64, closing the low-pressure ports 76 and opening the high-pressure ports leading through passage 70 to the cylinder 12 for effecting ejection of the workpiece. Should the pressure rise above a predetermined level, valve 102 opens, followed by an unloading valve 88, allowing the high pressure liquid to return to tank, along passages 34, 108, 32. For effecting a preforming operation, the cam 116 is set to close the switch as the ram descends, excessive pressure escaping as described above.
Patent GB-1147244-A (GB)
Title: Improvements relating to indicating instruments
Inventor: SITTON ROBERT MILO WILLIAM
IPC: G01R15/00
Filed: 1967-01-12
Abstract: 1,147,244. Voltmeters; changing scale laws. FERRANTI Ltd. Dec.12, 1967 [Jan.12, 1967], No.1651/67. Heading G1Q. A D.C. voltage measuring arrangement including provision for changing its scale law comprises an amplifier A which holds the potential of a point P in a resistance chain R1 R2 at a reference potential V R  as long as I 1  < I 2 , and the effective resistance in series with a meter M is R1, but when I 1  > I 2  the amplifier lose all control over the potential of the point P and the effective series resistance is increased to R1 + R2, thus giving upper scale compression. The amplifier is a stabilized long tailed pair of transistors with the base of one connected to the point P and that of the other to the reference voltage V R . Two or more changes in the scale law may be obtained by using two or more amplifiers connected to different points on the resistance chain R 1 , R2 and having different reference voltages. Modifications are described for the provision of upper scale expansion when measuring positive voltages and upper scale expansion and compression when measuring negative voltages.
Patent GB-332251-A (GB)
Title: Improvements in and relating to the destructive hydrogenation of carbonaceous materials
IPC: C10G1/06
Filed: 1929-01-17
Abstract: 332,251. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 17, 1929. Hydrogenation, destructive.- In the destructive hydrogenation of carbonaceous materials in which gaseous heating media are employed for externally heating the charge, media having temperatures at least 100‹ C. higher than the reaction temperature and below 800<‹> C. are used, a uniform flow of heat being provided from the media to the charge. The uniform heat flow is obtained either by providing scraping means in the reaction tubes or vessels to remove coke deposits or by surrounding the tubes with a baffle or a mantle, the heat being distributed uniformly in the space between the' tubes and the mantle. The effluent heating gases may be mixed with a quantity of hot gases sufficient to heat them up to the required temperature and recycled. The heating apparatus comprises a chamber O in which hot gases from burners a are mixed with used gases, recycled through a pipe m and a passage b having openings c, so that the required temperature is obtained. The gases are passed into a chamber e divided from the chamber a by a baffle d and there come into contact with the pipe coils p, through which the charge is passed, the upper coils being surrounded by insulations as shown in dotted lines. In the modification shown in Fig. 3, the hot gases from a burner a, mixed with recycled gases entering through passages b, are passed through openings c in a baffle into contact with vertical pipes p through which the charge flows. The charge with the hydrogen is introduced at f and the liquid is kept in motion by the rising gases. Specifications 208,586. 231,840, and 240,355 are referred to.
Patent GB-138156-A (GB)
Title: Improvements in apparatus for ascertaining the composition of furnace-gases
IPC: G01N7/04
Filed: 1919-01-23
Abstract: 138,156. Cossor, F. Jan. 23, 1919. Gas analysis.-In a portable gas-analysis apparatus, the measuring-vessel 11 is connected, on the one hand, with the flue by way of a hand-controlled stop-valve 20, and, on the other hand, by means of a tube 25 with the absorbing-vessel 26, the end of the tube dipping into a solution of caustic potash contained therein; the inert liquid, the movements of which constitute the rising and falling liquidpiston for drawing the gas into the measuring-vessel and forcing it through the apparatus, is contained in a vessel 14 connected by means of a U-shaped tube 13 with a vertical tube 12 depending from the measuring-vessel 11, and is actuated by forcing air into the vessel 14 by means for of a pumping-ball 17 provided with a non-return valve and with a venting- plug 16 to be opened when the column of liquid in the tube 12 is required to fall; the unabsorbed gas passes into the bulb 29 of the manometer, forcing liquid into the other bulb 30 and eventually into a slightly-inclined open-ended tube 31 provided with a scale for directly measuring the percentage of absorbed gas. After the test has been made, the unabsorbed gases are exhausted through a hand-controlled stop-valve 33. Open-ended funnels 34, 39 are provided for filling the absorbing-vessel 26 and manometer 29, 30 respectively; and pipes 35, 37 controlled by stop-valves are provided for draining. The entering gases pass through a filter 22.
Patent GB-679244-A (GB)
Title: Improvements in and relating to curtain pelmets
IPC: A47H15/02
Filed: 1951-01-23
Abstract: 679,244. Suspending curtains. MELVIN, L. F. Jan. 23, 1951. No. 1749/51. Class 52 (v). A pelmet a has a roof portion consisting of two aligned sections b c each having a longitudinal semi-circular groove bl c<SP>1</SP> to from a circular channel to accommodate curtain supporting runners. The pelmet is supported by brackets f which fit by dovetail jointing in to aligned transverse rebated channels f on the top of the roof member. The runners may be of plastic strip shaped to cylindrical form with depending ends as shown in Fig. 7. Fig. 8 shows an alternative construction of runner in the form of a cylinder with a depending loop to support curtain engaging hooks. A cord p passes through holes r r<SP>1</SP> while a recess r<SP>2</SP> enables the cord to be anchored to the runner by fitting a knot in the cord into the recess.
Patent GB-1045982-A (GB)
Title: Process for preparing polydecanolactam of high molecular weight
IPC: C08G69/16
Filed: 1964-01-15
Abstract: o -Dodecanolactam is polymerized in the presence of ortho-, meta- or pyro-phosphoric acid at a temperature above 300 DEG  C., the reaction being stopped before polymerization is complete to produce a polymer capable of undergoing further polymerization by heating in an inert atmosphere at a temperature below its melting point.
Patent GB-538383-A (GB)
Title: Improvements in electric coupling devices
IPC: H01R13/642
Filed: 1940-01-30
Abstract: 538,383. Two-part couplings. ELECTROLUX, Ltd. Jan. 30, 1940, No. 1868. Convention date, Feb. 20, 1939. [Class 38 (i)] A socket member 10 having hollow contacts co-operating with plug contacts of oblong or flat section has apertures 17 arranged in an inclined position and formed by recesses in the two parts of the housing that fit together on the plane 20, Fig. 2. The parts may be identical and interfit by means of projections 21 but if the appertures 17 are inclined in opposite directions as shown in Fig. 4 the two parts of the housing may abut on a plane 25 passing through the angles of the apertures.
Patent GB-310089-A (GB)
Title: Improvements in sintering apparatus
IPC: F27B21/06
Filed: 1928-01-21
Abstract: 310,089. Holmberg, A. Jan. 21, 1928. Discharging. - In a plant for sintering ores in which the pans 8 are mounted on stationary supports 1 during the sintering process and are carried by a travelling crane 5 to a shoot 2, a pan is received and emptied by a rotatable tipping device 9. On arrival at the shoot a bracket 20 on the crane moves a lever 19 to withdraw retaining bolts 13 allowing the pan to be dropped into position guided by horns 90. When the crane is withdrawn the bolts 13 are pressed by springs into engagement over a flange 14 on the pan. The tipping device is secured to a rock-shaft 10 which is driven by an electric motor (not shown) having a distant control 22 which is operated from the platform 7 of the crane. A countershaft 24 drives an indicator 26 which shows the inclination of the tipping device.
Patent GB-849025-A (GB)
Title: Blow molding of polytetrafluoroethylene
IPC: B29C49/00
Filed: 1958-01-21
Abstract: 849,025. Moulding flexible bellows &c. from polytetrafluoroethylene. RESISTOFLEX CORPORATION. Jan. 21, 1958 [Jan. 30, 1957], No. 2057/58. Class 87(2). A corrugated bellows of polytetrafluoroethylene is formed by placing a sintered extruded tube in a longitudinally split mould, gripping the ends by screw-threaded plugs 40, 60, heating the central part of the tube by a flame or a jacket, and then supplying air or inert gas under pressure through a passage 64 to blow the tube into contact with the mould. The mould is then immersed in a water bath, and after cooling, the moulded bellows removed. The mould may have a pressure relief valve.
Patent GB-396630-A (GB)
Title: Retarding devices for controlling the operating mechanism of photographic shutters and like gear trains
IPC: G04B15/00
Filed: 1933-01-23
Abstract: 396,630. Escapements. VOIGTLANDER & SOHN AKT.-GES., 7, Campestrasse, Brunswick, Germany. Jan. 23,1933, Nos. 2203 and 2204. Convention dates, Jan. 26, 1932, and April 20, 1932. [Class 139.] A retarding device for controlling the operation of photographic shutters and like gear-trains comprises a rotary disc coupled to the gear-train and having radial tooth-like ribs on one or both sides co-operating with a rockable pallet which is displaceable along the radius of the disc'so as to engage the ribs at different distances from the axis to vary the retarding effect. In the form shown in Fig. 2, the disc 13 is formed with ribs 14 decreasing in height from the circumference to the axis 12 and the pallet 17 bears teeth 18 opposite to one another. The pallet 17 is carried by the arm 20 of a bent lever (not shown) the other end of which engages a cam plate mounted coaxially on the shutter, the retarding action being varied by rotating the cam plate to displace the outer end of the lever and thus move the pallet towards the axis of the disc. The teeth 17 of the pallet may be displaced relatively to one another, the apices of the ribs on opposite sides of the disc being then placed opposite one another. In a modification, the number of teeth in concentric rings of the disc may be varied. As shown in Fig. 10, the disc 30 has teeth 32 in the outer ring only, and teeth 33 .. 36 extending inwards to varying distances from the circumference so that the number of teeth progressively decreases towards the centre where a zone without teeth may be provided. The pallet 37 in this instance is carried on a rod 38 and is straddled bv a bail 41 bearing a pin 42 engaging in a cam slot 43 in a plate 44 mounted on the shutter. The slot 43 has stepped portions corresponding to the zone of the disc 30.
Patent GB-371871-A (GB)
Title: Improvements in or relating to recoil mechanism for guns
IPC: F41A3/78
Filed: 1931-01-22
Abstract: 371,871. Frictional shock absorbers. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V BRNE, 7 U Lazaretu, Brunn, Czecho-Slovakia. Jan. 22, 1931, No. 2214. Convention date, June 20, 1930. [Class 108 (iii).] A gun recoil and run-out spring 11 of the kind which can be compressed from one end 14 to absorb recoil and from the other end 15 to cushion the return of the parts beyond the rest position is provided with a friction brake which co-operates with the spring during the excess return movement. The abutment 15 of the spring is formed of a split ring 55 with inclined edges engaging sliding collars 60, 61, the ring being expanded against the cylinder wall on being squeezed between the collars when the member 2, in moving beyond its rest position, engages the collar 61.
Patent GB-514353-A (GB)
Title: New azo compounds and dyestuffs derived therefrom
IPC: C09B35/28
Filed: 1938-01-24
Abstract: 514,353. Dyes. DU PONT DE NEMOURS & CO., E. I. Jan. 24, 1938, No. 2301. Void. Convention date, Jan. 23,1937. [Classes 2 (iii) and 15 (ii)] Disazo dyes are made by tetrazotizing an N : N<1>-di (aminoaroyl)-phenylene- or naphthylenediamine and coupling with two mols. of the same or different coupling components having at least one free amino group. The aryl nuclei may be substituted by sulphonic, alkyl, alkoxy, halogen, oxyacetic acid, or azo groups. Many of one products are direct dyes for cotton and regenerated cellulose, the shades obtained ranging from yellow to red. In examples, (1) N: N<1>-di-(p-aminobenzoyl)- m-phenylene diamine is tetrazotized and coupled with (a) J-acid (2 mols.), (b) 1-m-aminophenyl- 5-pyrazolone-3-carboxylic acid (2 mols.), and (2) N: N<1>-di (p-aminobenzoyl)-1: 3-diaminobenzene-4-sulphuric acid is tetrazotized and coupled with (a) 1-m-aminophenyl-3-methyl-5- pyrazolone (2 mols.), (b) 1-m-aminophenyl-5- pyrazolone-3-carboxylic acid (2 mols.), (c) p-aminobenzoyl-J-acid (2 mols.) and (d) maminobenzoyl-J-acid (2 mols.). A large number of other combinations is tabulated, the following additional components being specified : tetrazo components - N : N<1>-di-(p-aminobenzoyl)-pphenylenediamine, N: N<1>-di-(p-aminobenzoyl)- 1 : 4-naphthylenediamine, and N : N1-di- (p-aminobenzoyl)-1 : 4-phenylenediamine-5-sulphonic acid ; coupling components :-di-(paminobenzoyl)-3 : 5-diaminobenzoyl-J-acid, and m-toluidine. The disazo dyes from (1) N: N<1>- di-(p-aminobenzoyl)-1 : 3-phenylenediamine-4- sulphonic acid (1 mol.), 1-m-aminophenyl-5- pyrazolone-3-carboxylic acid (1 mol.) and p-aminobenzoyl-J-acid (1 mol.), and (2) N: N<1>- di-(p-aminobenzoyl)-m-phenylenediamine and 1-maminophenyl - 5 - pyrazolone - 3 -carboxylic acid (2 mols.), are tetrazotized and further coupled with 1-m-aminophenyl-5-pyrazolone- 3-carboxylic acid (2 mols.).
Patent GB-763925-A (GB)
Title: Cooling arrangements for stationary electrical apparatus
IPC: H01F27/08
Filed: 1955-01-26
Abstract: 763,925. Transformers and inductors. ROHATYN, F. S. Jan. 26, 1955 [April 23, 1954], No. 2389/55. Class 38 (2). [Also in Group XXXVII] Electrical apparatus such as a transformer is housed in a casing and provision made for cooling the apparatus by a natural flow of unfiltered air and a forced flow of filtered air either separately or together. A transformer 10 is housed in a casing 12, the transformer being cooled by air which enters a louvred opening 34 naturally and which leaves the casing by another louvred opening 36. These openings are provided with dampers 120 which are operated through linkage systems by an electric motor 130 to close or open the openings. Forced air for cooling is provided by an exhaust fan 196 situated in a further vent 24 at the top of the casing 12, there being provided a further opening 22 in the casing, which opening is provided with filters 164. In operation, when the fan 196 is at rest, the motor 130 runs to open the dampers 120 so that air is able to circulate naturally about the transformer 10 through the openings 34, 36. When the transformer is required to supply a greater load and hence require greater cooling, the fan 196 is started-either manually or automatically by a switch 200-and at the same time the motor 130 runs to close the dampers 120. Thus the cooling air during forced operation must normally all pass through the filters 164. Automatic operation of the fan 196 is caused by a Wheatstone bridge arrangement 201 controlled by a temperature responsive element 203 situated at a transformer hot spot, the bridge being associated with a mercury switch 202. Should the flow of forced air become insufficient the dampers 120 may be opened by the motor 130 to allow the natural draught to assist. This operation is controlled by a pressure responsive device 168 responsive to the pressure differential on the two sides of the filters 164 and an associated mercury switch 176 or by means of an air flow vane 180 and associated mercury switches 190, 192. Visual or audible warnings of insufficient cooling may also be provided.
Patent GB-432271-A (GB)
Title: Improvements in cellulose ester and ether compositions
IPC: C08K5/12
Filed: 1934-01-23
Abstract: Compositions comprise cellulose esters or ethers which are plasticized by the addition of the hexahydrobenzoic esters of partial ethers of di- or polyhydric alcohols.  Partial ethers mentioned are the monomethyl, monoethyl and monophenylethers of ethylene glycol, whilst the ester component may be hexahydrobenzoic acid itself or its alkyl or halogen derivatives, p  e.g. hexahydro-p-toluic acid and commercial naphthenic acids. Cellulose nitrate, acetate, formate, propionate and butyrate are given as examples of cellulose esters, and ethyl-, methyl- and benzyl-cellulose as instances of ethers.  The compositions may be worked up into sheets, rods, tubes or blocks, or moulded under heat and pressure; in the form of solutions, they may be converted by wet or dry spinning processes into filaments, or made into films, sheets or foils, or used as lacquers.  Sheets of the composition may be employed as the non-shattering core of laminated glass.  Filling-materials, pigments or dyes, and other plasticizers may also be present in the compositions.  According to the examples, (1) a solution of cellulose acetate, the ester of ethylene glycol monomethyl ether with commercial naphthenic acid, and triacetin in acetone is spread on the gelatine-covered surface of a film-casting wheel, the acetone evaporated, and the film stripped off; (2) a coating composition comprises cellulose acetate, dimethyl phthalate, the ester of ethylene glycol monomethyl ether with commercial naphthenic acid, diphenylolpropane-formaldehyde resin, acetone, benzene, alcohol, diacetone alcohol, and a pigment.ALSO:Compositions comprise cellulose esters or ethers which are plasticized by the addition of the hexahydrobenzoic esters of partial ethers of di- or polyhydric alcohols.  Partial ethers mentioned are the monomethyl, monoethyl and monophenyl ethers of ethylene glycol, whilst the ester component may be hexahydrobenzoic acid itself or its alkyl or halogen derivatives, e.g. hexahydro-p-toluic acid and commercial naphthenic acids. Cellulose nitrate, acetate, formate, propionate and butyrate are given as examples of cellulose esters, and ethyl-, methyl- and benzyl-cellulose as instances of ethers.  Filling materials, pigments or dyes, and other plasticizers may also be present in the compositions.
Patent GB-890372-A (GB)
Title: Vacuum panel insulation
IPC: F25D23/06
Filed: 1960-01-22
Abstract: 890,372. Refrigerators; non-conducting coverings for heat. UNION CARBIDE CORPORATION. Jan. 22, 1960 [Jan. 27, 1959], No. 2405/60. Classes 29 and 64(2) The parallel face walls 10, 12 of an evacuated insulation panel are supported against atmospheric pressure by hollow columns 36 the flat ends of which bear on the inner surfaces of the walls. The cross-section of the columns may be circular, elliptical or rectangular and the columns have apertures 38 to put their interiors under vacuum. The colums may take through apertures in fibre-board sheets 40, located by pins 41, so that buckling is minimized. The evacuated space may be filled by insulating powder or alternate layers of fibrous insulation and reflective foils. The edges of the walls are spaced by a U-shaped plastic member 14 and sealed by a thin stainless steel sheet 24 welded to out-turned flanges 20, 22 on the walls. The panel has a vacuum connection 32 and a getter device 34. The columns may be made of glass, quartz, ceramic or glass-fibre reinforced melamine formaldehyde resin. The: panels may be used for high temperature work. Specification 890,373 is referred to.