baber/WOPTO huggingface dataset:
Patent GB-806107-A (GB)
Title: Method of regenerating ion exchangers
IPC: B01J49/00
Filed: 1956-10-29
Abstract: 806,107. Purifying water. ILLINOIS WATER TREATMENT CO. Oct. 29, 1956 [Nov. 16, 1955], No. 32905/56. Class 46. A process for regenerating a spent bed or eolumn of an ion exchange resin comprises passing a liquid regenerating medium upwardly through the column while the column is maintained in a substantially unexpanded condition by a downwardly directed force applied at the upper end of the column. A tower 10 having in its lower part a bed 11 of cation exchange resin of the styrene - divinylbenzene sulphonic type is provided, in addition to the top and bottom distributers 18, 13, with a distributer 24 located at the top of the bed 11 of resin. During the service run untreated water enters by the top distributer 18, flows downwards through the bed 11 and leaves through distributer 13 and pipe 15. When a methyl orange indicator shows the bed to be exhausted, the water inflow is stopped, a valve 19 in a discharge pipe 14 opened and backwash water is admitted through a pipe 16 and valve 31, the backwash expanding the resin upwards and loosening the resin particles which when the backwash is stopped settle down to their normal arrangement with the smallest particles on top and the largest at the bottom. A one per cent. sulphuric acid solution is now admitted through a pipe 17 and valve 30, a valve 27 in the line from the intermediate distributer 24 being opened. This clears the water from the resin bed and is followed by a 3 per cent. solution. At the same time, untreated water is admitted through the top distributer 18 and flows out through the intermediate distributer 24 applying pressure to the top of the resin bed to prevent it expanding under the up-flow of regenerant. On completion of the regeneration, an upward flow of rinse water replaces the flow of regenerant and is followed by a downward flow of untreated water which runs to drain until a valve 32 is closed and a valve 33 in the line 15 opened.
Patent GB-452623-A (GB)
Title: Improvements in the manufacture of spark plugs
IPC: H01T21/02
Filed: 1935-11-28
Abstract: Sparking-plug insulator surfaces are provided with zones of metallic copper, formed in situ by reducing copper oxide.  A liquid coating composition is applied having a fusible ingredient, preferably glaze-forming, and also a quantity of copper oxide in excess of that which will dissolve in the fusible ingredient on heating.  Reduction is effected by applying a paste of an alkali and a comminuted metal which is electro-positive to copper, such as zinc or aluminium.  An absorbent pad containing the paste may be pressed against the insulator which is mounted in a rotating holder.
Patent GB-289733-A (GB)
Title: Improvements in and connected with gauge glasses
IPC: F22B37/78
Filed: 1927-12-07
Abstract: 289,733. Noble, E. E., and Stirling Boiler Co., Ltd. Dec. 7, 1927. Gauge glasses.-The steam connection 8 of a gauge glass on the drum 1 of a water-tube boiler is continued inside the drum by a pipe 6 projecting upwards above the highest possible water level. The pipe may extend into a thimble projecting from the top of the drum if the water-tube connections 2 are so placed as to allow the water to fill the drum.
Patent GB-931916-A (GB)
Title: Retractable aircraft landing gear
IPC: B64C25/14
Filed: 1959-10-01
Abstract: 931,916. Aircraft undercarriages. RECHERCHES ETUDES PRODUCTION. Oct. 1, 1959 [Oct. 9, 1958], No. 33384/59. Class 4. A retractable aircraft landing gear comprises a lever 3 supporting a wheel carrying shaft 3, a chanelled leg member 1, a leg extension 6, a shock absorber 18, a radius rod 4, a strut 8, a strut 10, and a double acting jack 13, all articulated as shown at pivots 2, 5, 19, 17, 7, 9, 11, 14 and 15, and pivoted to the airframe at 12 and 16. In the extended position shown, the axes of pivots 9, 11, and 12 are coplanar, and are maintained thus by a lock operative between strut 8 and bracket 10, or by a lock in the jack. During retraction, by extension of jack 13, the centre 20 of the wheel follows a path T, and the quadrilateral formed by members 1, 3, 6, and 18 is deformed so as to shorten the undercarriage. In one alternative, the pivots 15 and 16 coincide, and in another alternative, the bracket 10 is pivoted to the radius rod 4 at a point spaced from pivot 12. The undercarriage may retract into an engine nacelle. Specifications 447,448, 452,324 and 802,021 are referred to.
Patent GB-495149-A (GB)
Title: Improvements in photographic roll film cameras
IPC: G03B19/04
Filed: 1937-12-02
Abstract: 495,149. Photographic roll - film cameras. VALSTS ELEKTROTECHNISKA FABRIKA. Dec. 2, 1937, No. 33398. Convention date, Dec. 22, 1936. [Class 98 (i)] A roll-film camera comprises two bodies which telescope in each other in a direction perpendicular to the axis of the lens and by their reciprocating movement tension the shutter and feed the film forward. The body 1b is movable in the body 1a, and carries a release button 2, a focusing knob 3, the graduated knob 4 for the shutter speed, an exposure counter 5 and a view finder 7. A cover on the lower side of the body can be removed for insertion of the roll film. The shutter consists of a metal strip 9 held by a spring 12 and provided with an opening 10 which moves across the lens 6. A hook 9a on the strip 9 is held by a spring catch 14. A plate 11 prevents uncovering of the lens when the camera is being shut; but has an opening 11a which coincides with the opening 10 when the exposure is made. A lever 35 lies in the path of the hook 9a and is connected to an escapement mechanism 35a, 36, 37 and 38. A cam 4a on the setting member 4 determines the position of the lever 35 and accordingly regulates the time at which the opening 10 coincides with the lens 6. When the parts 1a, 1b are moved together, the lever 35 is moved against a spring 39a to a position determined by the cam setting. When the parts are separated, the shutter plate is moved to a latched position. Upon depression of release knob 2, the plate moves and uncovers the lens, and is held in this position whilst the escapement runs down. The film is fed by means of a reciprocating rack 19 and a unidirectional coupling as described in Specification 494,544. The film is pressed during exposure against the exposure opening by a spring-pressed plate.
Patent GB-968218-A (GB)
Title: Cigarette making machine
IPC: A24C5/47
Filed: 1961-09-18
Abstract: 968,218. Applying cigarette mouthpieces. AMERICAN MACHINE & FOUNDRY CO. Sept. 18, 1961 [Sept. 22, 1960], No. 33412/61. Heading A2C. A machine for applying cigarette uniting bands 22 about a cigarette assembly C comprises a rolling drum 14 and a concave surface 16 which is slowly axially movable during operation of the machine to permit cleaning. Cleaning brushes 34, 36 may be provided on the ends of the drum 14. The concave 16 is reciprocally mounted on a bed 32 that is provided with a block 56 having a slot 54 in which run pins 52. The pins 52 are provided on an endless chain 50 trained over a sprocket 48 which is slowly driven by gearing from a worm 38 on the shaft of the cigarette assembly receiving mechanism 26. Specification 833,998 and U.S.A. Specification 2,188,998 are referred to.
Patent GB-620729-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M1/00
Filed: 1946-11-11
Abstract: 620,729. Spray carburetters. FARMER, G. H. Nov. 11, 1946, No. 33487. [Class 7 (iii)] In a suction type carburetter the fuel metering means is adjusted by a fluid-operated thermometric device responsive to air inlet temperature. As applied to a double choke carburetter the fuel fed from a float chamber 19 through a metering orifice 17a to one nozzle 12 is controlled by a needle 16a actuated by a capsule responsive to boost pressure, and from the other float chamber 19 through an orifice 17b to another nozzle 12 is controlled by a needle 16b actuated by a capsule 25, Fig. 2, subject to atmospheric pressure and adjustably connected to a bellows 31 in a chamber 34 connected by a capillary 35 to a temperature responsive liquid filled bulb 32 in the air intake. Increase of temperature compresses the bellows 31 and raises the capsule 25 to decrease the fuel, supply through orifice 17b. The float chambers 19 are connected through passages 22 to the space 21 behind the choke tubes 10 and emulsifying air is delivered to the fuel jets 13 through passages 23, 14. Slow running jets 15 are provided and the bellows 31, which may alternatively be applied to the boost controlled needle 16a, is vented to atmosphere and may accommodate a spring. Each of the orifices 17a, 17b is fed from a chamber 18 connected to the float chamber by tubes 20, Fig. 2.
Patent GB-641573-A (GB)
Title: Manufacture of esters of ª‡,ª‡-diphenyl-proprionic acids
IPC: C07C69/616
Filed: 1947-12-19
Abstract: Basic esters of a  : a -diphenyl-propionic acids are prepared by treating the halides of the acids with N-dialkylamino alcohols having a tertiary N-atom or by reacting the carboxylic acids or their salts with mineral acid esters of amino alcohols, e.g. with the hydrohalic acid esters or sulphuric acid esters.  In examples: (1) a  : a -diphenyl-propionic acid chloride is reacted with diethylamino ethanol to give a  : a -diphenyl-propionic acid diethylaminoethyl ester; (2) a  : a -ditolyl-propionyl chloride is reacted with diethylamino-ethanol to give the corresponding ester; (3) a  : a -ditolyl-propionic acid dissolved in alcohol in the presence of sodium is reacted b -chlorethyl-diethylamine to give the product of (2); (4) a  : a -dixylyl-propionic acid is dissolved in a solution of sodium in alcohol is reacted with b -chlorethyl-diethylamine to give a  : a -dixylyl-propionic acid diethylaminoethyl ester, by using b -chlorbutyl diethylamine in place of b -chlorethyldiethylamine the corresponding diethylaminobutyl ester is formed; (5) a  : a -dianisyl-propionic acid is reacted with b -chlorethyl-diethylamine to give a  : a -dianisyl-propionic acid diethylaminoethyl ester, and (6) a  : a  - bis - (p - ethylphenyl) - propionic acid is treated with p-chlorethyldiethylamine to give a  : a -bis-(p-ethylphenyl-) propionic acid diethylaminoethyl ester.  a  : a -Diphenyl-propionic acid chloride is prepared by the reaction of a  : a -diphenyl-propionic acid and thionyl chloride.  a  : a -Ditolyl-propionic acid chloride is prepared by the reaction of a  : a -ditolyl-propionic acid and thionyl chloride.  a  : a -Dixylyl-propionic acid is prepared by the condensation of pyruvic acid with two molecules of o-xylene in the presence of sulphuric acid.
Patent GB-1442510-A (GB)
Title: Roller blind drive
IPC: E06B9/60
Filed: 1974-07-31
Abstract: 1442510 Roller blinds BAUTEX ADOLF STOVER KG 31 July 1974 [2 Aug 1973] 33812/74 Heading A4B A roller blind driving mechanism comprises a drive wheel 14, 16 operated by a cord 52, a coupling member 12 connected integrally in rotation to the blind roller 10, the coupling member 12 having a sleeve portion 13 arranged coaxially of the wheel 14, 16 and of a brake element 18 mounted for limited rotation against the action of a spring 26 anchored to a fixed housing 42, the coupling member 12 mounted for limited rotation relative to the wheel 14, 16 against the bias of a spring 28, the sleeve portion 13 having one or more radial perforations 30 in which a wheel or ball-like locking member 20 is radially slidable, the wheel 14, 16 having radially projecting control lugs 15 biased by the spring 28 into alignment with the perforations 30, the lugs 15 holding the locking members 20 in depressions 34 disposed between radially extending stop lugs 33 on the brake element 18 to limit relative rotary displacement between the coupling member 12 and brake  element 18 to that corresponding to the peripheral length of a depression 34 and thus preventing rotation of the roller, the locking effect being released by a small displacement of the control lugs 15 by operation of the cord 52 to a position out of alignment with the perforations 30 whereby the locking elements 20 are displaced radially by the stop lugs 33 into recesses 17 defined between the control lugs 15. In another embodiment Figs. 4-6, (not shown) the control lugs 15 are disposed and the stop lugs 33 inside the sleeve portion 13. In a modification the coupling member and roller are inter-connected through reduction gearing.
Patent GB-815839-A (GB)
Title: Process for making copolymers of monovinylbenzene compounds and unsaturated alkydresins
Inventor: CHARLES RUBENS LOUIS
IPC: C08G18/68
Filed: 1956-11-08
Abstract: Tough, mouldable resin compositions are prepared by mixing (A) 60 to 99 per cent of at least one monovinyl aromatic compound of the benzene series and (B) 40 to 1 per cent of at least one polymerizable high molecular weight linear elastic polyester having a second order transition temperature below room temperature and which is the reaction product of a minor amount of (1) an organic diisocyanate or diketene and a major amount of (2) a lower molecular weight polyester derived from (a) a mixture of dicarboxylic acids comprising an ethylene-a ,b -dicarboxylic acid and (b) excess of at least one glycol, optionally mixed with (3) a polyester derived from glycols and dicarboxylic acids free from ethylenic unsaturations, the amount of ethylene-a ,b -dicarboxylic acid being 0.0845 to 1.5 per cent by weight of the composition and 1 to 3 mole. per cent of the acids, and heating to effect polymerization.  Specified monovinyl compounds are styrene, p-methylstyrene, m-methylstyrene, p-ethylstyrene, p-isopropylstyrene, 2,4 - dimethylstyrene, p - chlorostyrene, 2-chloro - 4 - methylstyrene and 2,4 - dichlorostyrene which may be partially prepolymerized.  The polyesters may be derived from maleic, fumaric, citraconic, chloromaleic, adipic, b -methyl adipic, pimelic, suberic, azelaic, sebacic, phthalic and terephthalic acids or their anhydrides, acid chlorides or esters of low molecular weight monohydric alcohols, and 1,2-propylene glycol, 2,2 - dimethyl propanediol - 1,3, ethylene glycol, trimethylene glycol, hexamethylene glycol and decamethylene glycol, at least one of the reactants preferably having a branched carbon chain.  The polyesters may also comprise long chain hydroxy aliphatic carboxylic acid radicals, e.g. of 12-hydroxystearic acid.  Specified coupling materials are ethylene diisocyanate, trimethylene diisocyanate, tetra-methylene diisocyanate, hexamethylene diisocyanate, decamethylene diisocyanate, meta-toluene diisocyanate, 1,5-naphthalene diisocyanate, 2,9-dimethyl - 1,9 - decadiene - 1,10 - dione, 3,10-dicarbonyl-2,11-dodecanedione and carbon sub-oxide. Preferably (B) is prepared by coupling saturated linear polyesters with polyesters containing a higher proportion of unsaturated dicarboxylic acid than the desired mean.  The polymerizable compositions may contain plasticizers, mould lubricants, colouring agents, opacifiers, pearlescents and fillers and may be polymerized, optionally in the presence of nonreactive solvents and peroxy catalysts, e.g. benzoyl peroxide, cumene hydroperoxide, ascaridol and tert-butyl peroxide, on a rising temperature schedule.  The compositions may be used as laminating resins, coating materials, casting and potting agents and for impregnating porous and fibrous structures.
Patent GB-794982-A (GB)
Title: Improvements in or relating to solid lubricants
Inventor: SUGARMAN BERNARD
IPC: C08K3/30
Filed: 1954-11-26
Abstract: A solid lubricating composition, suitable for application to cutting tools, and in the form of a mass compacted by compression, comprises 30-80 per cent by weight of molybdenum disulphide, or of a metallic compound having a similar layer-lattice crystalline structure, together with a solid binder.  Suitable metallic compounds are MoTe2, MoSe2, WS2, WTe2, WSe2, TiS2, TiSe2, ZrS2, ZrSe2, or a halide of cadmium, but mixtures may be employed.  Suitable binders are polyesters of methacrylic acid, polystyrene, polyethylene, cellulose acetate, phenol-formaldehyde condensation products, ethoxyline resins, epoxy resins, thermosetting polyester resins, polytetrafluorethylene, shellac and glue.  Heat may be applied during or after compression.
Patent GB-931354-A (GB)
Title: Improvements in electrical plugs for insertion into plugboards
IPC: H01R24/38
Filed: 1959-10-09
Abstract: 931,354. Two-part couplings; plug boards. AMP Inc. Oct. 9, 1959 [March 25, 1959], No. 34300/59. Class 38 (1). A plug comprising a sleeve with a rounded nose is removably held in an aperture in a plugboard by a detent protruding through an opening in the sleeve under spring action to engage a face of the plugboard, the detent having an integral member extending into a hole in the nose. As shown, a plug comprises a hollow cylindrical sleeve 10 formed with a bead 22 to limit insertion of the plug into an aperture 2 in a plugboard 4 and having a rounded nose 8 and at the other end a ferrule 14 for crimping to a conductor 16, an insulating sheath 20 moulded around the ferrule 14 to serve as a handle, and a V-shaped spring 26 arranged within the sleeve so that the apex 28 of the V protrudes through a hole 24 in the nose 8 and detents protrude through diametrically opposed openings 36 and 37 in the sleeve, the detents being formed by the arms 30 and 31 of the V and legs 38 and 39 which extend substantially radially into the sleeve through the openings 36 and 37. The protrusion of the detents is limited by limbs 40, 41 extending from the legs 38, 39 inside the sleeve 10 and formed with double bends so that they cross as shown, the ends of the limbs being fixed in the ferrule 14. On insertion of the plug into the aperture the detents are depressed into the sleeve, the apex 28 moving in the hole 24, and spring out when the plug is fully home. The plug may be withdrawn by pulling on the sleeve 20, but if a force to unseat the plug is applied to the nose the detents are urged more forcefully into engagement with the plugboard. The spring may have limbs which do not cross (Fig. 6, not shown), and may have limbs which are not fixed in the ferrule 14 (Fig. 7, not shown).
Patent GB-1147707-A (GB)
Title: A process for the production of polyamide foams
Inventor: SCHNELL HERMANN
IPC: C08G69/20
Filed: 1967-07-27
Abstract: 1,147,707. Polyamide foams. FARBENFABRIKEN BAYER A.G. 27 July, 1967 [27 July, 1966], No. 34598/67. Headings C3C and C3R. Polyamide foams are produced by polymerizing one or more lactams having at least seven ring members in the presence of an isocyanate or masked isocyanate and of 0À01-2 mol. per cent (based on the lactam) of an alkali or alkaline earth metal, e.g. sodium, borohydride at 100-260 C. The lactam may be #-caprolactam or #-lauric lactam. The isocyanate may be hexamethylene diisocyanate, 4,41-diphenylmethane diisocyanate or hexamethylene-1,6-biscarbamido caprolactam. The polymerization may be carried out in the presence of asbestos powder or fibre, tale, glass, dyes or pigments.
Patent GB-991372-A (GB)
Title: Improvements in or relating to regenerative repeaters
IPC: H04L25/24
Filed: 1961-09-27
Abstract: 991,372. Automatic phase control systems; radio relaying. WESTERN ELECTRIC CO. Inc. Sept. 27, 1961 [Nov. 18, 1960], No. 34659/61. Headings H3A and H4L. In a pulsed carried self-timed regenerative repeater a clock pulse generator 22 is retroactively controlled in frequency and phase in accordance with the average recurrence frequency and phase of detected incoming pulses by the D.C. and low-frequency output of a phase detector 30, and the latter's high frequency output is passed through a filter 36 to variably delay the incoming pulsed carrier so that jitter is eliminated. As shown, the highfrequency output is applied to vary the helix potential of a travelling wave tube amplifier and thereby the delay of the amplified pulsed carrier whose output is then sampled by a directional coupler 18 then rectified at 28 before applying as one input to the phase detector 30. The rectified pulses may also, through a tunable high Q filter 42, produce sine waves which, after amplitude limiting, filtering and shaping, form the clock pulses, before applying them through a fixed delay compensating network 41 to the regenerator 20 where the incoming pulses of carrier are re-timed and re-shaped. The clock pulses are then controlled in frequency and phase by variably adjusting the tuning of filter 42 from the phase detector output, through filter 32. Alternatively, the clock pulses may be derived from an independent oscillator automatically frequency-controlled by 32. The shaper 40 may be a base clipper circuit producing "raised cosine " pulses.
Patent GB-411834-A (GB)
Title: Improvements in or relating to variable speed friction gearing
IPC: F16H15/42
Filed: 1932-12-07
Abstract: 411,834. Variable - speed friction gearing. HEYNAU, D. H., 6, Stresemannstrasse, Magdeburg, Germany. Dec. 7, 1932, No. 34743. Addition 373,859. [Class 80 (ii).] Variable-speed friction gearing comprises driving and driven pulleys with separable treads 3, 4 and 5, 6, respectively, Fig. 1, connected by an encircling friction ring 10, Fig. 2. Diagonally opposite treads 3, 6 are secured to the driving and driven shafts 1, 2, while the opposite treads 4, 5 are slidably splined to the same shafts. The treads 3, 6 are supported in bearing blocks 11, 12, respectively, which are secured together by a pair of rails 15, Fig. 4, and fixed to a casing 19. The tread 5 is supported in a bearing block 14, Fig. 6, which has a pair of slider arms 14<a>, Fig. 5, which fit on one side of the rails 15. The opposite tread 4 is supported in a bearing block 13 with slider arms 13<a> which fit on the other side of the rails 15. The two pairs of arms 13<a>, 14<a>, after being fitted with the ring 10 in proper engagement, are secured together so that the fixed rails 15 serve as guides for the simultaneous sliding movement of the treads 4, 5. The speed is varied by turning a pinion 17, Fig. 2, which engages a rack 16 on one of the arms 14<a> of the sliding combination.
Patent GB-498271-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/10
Filed: 1937-12-17
Abstract: 498,271. Pencil holders. KRAEMER, L. Dec. 17, 1937, No. 34960. [Class 146 (iii)] A pencil holder comprises a slotted outer casing 1 on which is slidable a ring 11 formed with or engaging a tongue-member 12 which projects through the slot into a space between an inclined plane on a member 3 carrying the flexible or rigid lead-holder 10, and a wedgemember 7, the construction being such that the member 7 acts on the member 3 to retain it in adjusted position and yet permit of easy adjustment. The member 7, which may be in the form of a ball or a disc, may be under the influence of a spring 6 acting against the rear wall of the member 3 or in an alternative construction the spring may be dispensed with and the member 7 act by gravity to fall into wedging-position ; in each case, pressure on the point during writing increases the wedging- action.