baber/WOPTO huggingface dataset:
Patent GB-921343-A (GB)
Title: Improvements in and relating to heating and ventil ation devices, intended more especially for vehicles
IPC: B60H1/22
Filed: 1961-09-11
Abstract: 921,343. Controlling burners. WEBASTOWERK G.m.b.H. Sept. 11, 1961 [Sept. 13, 1960], No. 32580/61. Class 75 (1). [Also in Group XIII] A heating and ventilating device for a vehicle comprises a liquid fuel burner 17, an electric motor 8 driving a ventilation blower 14, a combustion blower 16 and a fuel pump 15, an electromagnetic fuel valve 20, a first switch 7 controlling the motor, a second switch 24 controlling the fuel valve and a delayed action switch 30 controlling both the motor and the fuel valve, the first and second switches being operable by a single control member 2. The motor and fuel valve are energized by an electric battery 13 and the circuitry is arranged so that the control member 2 can be set in a heating position H in which the fuel valve is open and the motor is energized or in an off position A in which the fuel valve is closed and the motor continues to run until de-energized by the delayed action switch 30 or in a ventilating position L in which the fuel valve is closed and the motor is energized. The control member also has a starting position S in which the delay action switch 30 is bridged by a starting switch 5. A clockwork mechanism moves the control member from the starting position to the heating position. In the starting position the delay action switch 30 is open but the motor and the fuel valve are energized through the starting switch 5 and their own switches 7 and 24. The burner is ignited by an igniter (not shown) and heats a thermo-switch 27 which after a short time closes to energize a winding 29 of the delay action switch 30. The latter therefore closes. If ignition fails, the delay action switch does not close and the motor and fuel valve are de-energized by the starting switch 5 when the control member 2 reaches the heating position H. When the control member is moved to the off position A, the fuel valve is closed by its switch 24 but the motor is energized through its switch 7 and the delay action switch 30. The motor continues to run until the delay switch cools and the fuel delivered by the pump 15 is returned to the suction side of the pump through a spring-loaded valve. When the control member is moved to the ventilating position L, a switch 32 closes and the motor is energized through a circuit by-passing the delay action switch. The burner comprises a rotary atomiser driven by the motor.
Patent GB-618215-A (GB)
Title: Improvements in machines of the screw compressor type
IPC: F04C18/16
Filed: 1946-11-04
Abstract: 618,215. Meshing-screw compressors. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Nov. 4, 1946, No. 32652. Convention date, Nov. 3, 1945. [Class 110 (ii)] A meshing-screw compressor is provided with grooves 15 in the end of one or other rotor 10, 11, and a passage in the adjacent end of the casing communicating with either inlet or delivery ports at the respective ends, to prevent loss of work in causing partial vacuum or high compressions in the trapped spaces normally caused by meshing teeth. The grooves may be formed in either rotor and may communicate with either the inlet and outlet ports or separate inlet and outlet ports with consequent higher vacuua or compression in the additional ports. To increase the quantity of fluid passed through the additional ports, shields such as 20 may be used to cause earlier trapping of the space connected to the adjacent groove.
Patent GB-1478060-A (GB)
Title: Photocopying
IPC: G03B27/62
Filed: 1974-07-24
Abstract: 1478060 Contact printing XEROX CORP 24 July 1974 32678/74 Heading G2A Originals contained in transparent pockets 21 in a transparent endless belt 20 are passed in succession through a contact exposure station 3 in synchronism with a photo-conductive drum 1. Each pocket 21 has a location slot 18. Belt 20 passes round two sprockets 22 on an adjustable bracket 25, one sprocket being driven by an endless belt from the axle of the photo-conductive drum, and an idler roller 27 resiliently mounted on an adjustable bracket 28.
Patent GB-342300-A (GB)
Title: Improvements in and relating to electric heating units
IPC: H05B3/26
Filed: 1929-10-28
Abstract: 342,300. Resistance coatings. HOTPOINT ELECTRIC APPLIANCE CO., Ltd., 24, Newman Street, Oxford Street, London, and SIMS, W. J., Belindean, Wellesley Avenue, Richings Park, Iver, Buckinghamshire. Oct. 28, 1929, No. 32681. [Class 37.] Electric heating units of the type comprising a sinuous or spiral metal coating on an insulating base are made by covering the base with a screen or mask of paper &c. so shaped as to expose the portions of the surface to be coated, spraying the whole with "nichrome" or other metal and removing the screen. Spiral coatings on porcelain rods or tubes and sinuous coatings on uralite panels are mentioned.
Patent GB-600890-A (GB)
Title: Improved means for securing articles of dissimilar metals and materials to steel bases
IPC: F16B7/00
Filed: 1945-12-04
Abstract: 600,890. Sidelights. THOMPSON, J. S., and THOMPSON, W. G. Dec. 4, 1945, No. 32761. [Class 113 (i)] [Also in Group XXVIII] The main member 3 of a brass or plastic sidelight is secured outside a steel open frame 2 which can be subsequently welded to the ship's side l. The brass frame may be secured to the steel frame by casting, by screw threads, by press fitting, by screwed collars or by grub screws or rivets. Similar constructions can be utilized for sounding pipe fitting, deck filling connections, deck valves and similar fittings.
Patent GB-618622-A (GB)
Title: Improvements in or relating to coupling devices and dampeners
IPC: F16D3/68
Filed: 1946-11-05
Abstract: 618,622. Securing propellers to shafts. THOMPSON PRODUCTS, Inc. Nov. 5, 1946, No. 32806. Convention date, April 29. [Class 80 (ii)] In a device for coupling a driving shaft with a propeller hub or the like, split ring housings 22 extend laterally from one end of a sleeve 18 keyed to the shaft 12 and resiliently support hollow trunnions 35 by means of rubber bushings 26. Flanged sleeves 32, 37 are mounted on the driving sleeve 18 and bolts 52 secure together the flanges 32b, 37b, hub 11a and trunnions 35. The bushings 26 have metal casings 27 which are clamped between the split ring housings 22 by bolts 24. Wire mesh 'screens 28 embedded in the bore of the bushings 26 prevent shearing of the rubber. Trunnions 35 have portions 35a engaging apertures 34 in the flange 32b of member 32. A fragmental spherical ring 31 is disposed between a bevelled portion 32c of the sleeve 32 and a similar portion of the sleeve 18. A nut 40 and locking ring 44 are threaded on the outer end portion of the sleeve 18, and a fragmental spherical thrust face 41 on the nut engages a similarly shaped seating 39 bearing against the flanged sleeve 32. Notches in the flange 42 of the nut 40, in the locking ring 44, and in the end face of the sleeve 18 may be engaged by a tool for tightening purposes and by an angle-piece for locking in position. A nut 50 is threaded on the portion 12b of the shaft 12, and beam against a washer 49. In operation, the drive is transmitted from shaft 12 to the sleeve 18, then through the rubber bushings 26 to trunnions 35 and so to sleeves 32, 37 and hub 11a.
Patent GB-344471-A (GB)
Title: Manufacture of transparent sheet material
IPC: D21H17/25
Filed: 1929-10-29
Abstract: 344,471. Transparent sheet material. WARREN CO., S. D., 101, Milk Street, Boston, and DRIESEN, W. M., 33, Thomas Street, Clifton, Passaic, New Jersey, both in U.S.A. Oct. 29, 1929, No. 32850. [Class 20 (iii).] In the manufacture of transparent sheet material, a web of paper suitably prepared is impregnated by immersion, or by spraying or brushing, in a solution comprising a cellulosic film material, a volatile solvent, and also a stable solvent. A suitable solution is composed of nitro cellulose (ester soluble) denatured alcohol, ethyl acetate, amyl acetate, butyl acetate, ethyl lactate, diamyl phthalate, and the proportions are given. Cellulose acetate may be substituted for the nitrate. In this solution diamyl phthalate, a liquid which boils at about 300‹ C., acts as a stable solvent, it remains in mutual dispersion with the solution of nitro cellulose effects a more perfect encasing of the cellulose fibres on drying out of the solvent and thus produces a more perfect transparency than would be obtained without its use. The ethyl lactate acts to retard or regulate the rate of volatilization of the high volatiles and thus helps towards the same end. In another example, anhydrous lanolin is used as a stable solvent, and the paper to be used is preferably first treated with a dilute solution of anhydrous lanolin in a volatile solvent such as ethyl acetate. Other suitable stable solvents are dibutyl phthalate, diethyl phthalate, tricresyl phosphate, triphenyl phosphate, butyl stearate, isoamyl phthalate. Suitable paper for impregnating is obtained from partially hydrated vegetable fibre, preferably of a mitscherlich process sulphite fibre stock worked a long time in the beater, the paper being moistened with water and calendered by heavy steam-heated rolls before use.
Patent GB-173674-A (GB)
Title: Improvements in spark plug
IPC: H01T13/46
Filed: 1920-11-22
Abstract: 173,674. Thornton, A. A., (Ignition Co. of America). Nov. 22, 1920. Sparking-plugs. - The tapered central portion of the electrode 8 is wrapped in insulation and seated within a similarly-shaped bore in the casing. A nut 17 on the electrode, pressing on a sleeve 15 of insulation, draws the electrode against its seating. The dish-shaped perforated terminal 7 is retained by a stud 12, the parts being welded together.
Patent GB-1458808-A (GB)
Title: Substituted ethylenylphenoxy-2,2-dimethyl acetic acid derivatives
IPC: C07C255/37
Filed: 1975-08-07
Abstract: 1458808 Substituted ethylenephenoxy-2,2- dimethyl acetic acid derivatives G D SEARLE & CO 7 Aug 1975 [8 Aug 1974] 33007/75 Heading C2C Substituted ethylenephenoxy - 2,2 - dimethyl acetic acid derivatives of the general formula wherein R 1  is hydrogen or an alkyl radical containing from 1 to 7 carbon atoms and R 2  is phenyl, halophenyl, trifluoromethyl phenyl, p- (2 - alkoxycarbonylprop - 2 - xyloxy) - phenyl wherein the alkoxy group contains from 1 to 7 carbon atoms or 3,4,5-trialkoxyphenyl or palkoxyphenyl wherein the alkoxy group contains from 1 to 7 carbon atoms are prepared by condensing a substituted phenylacetonitrile of the formula R 2 CH 2 CN with an ester of 2-(4- formylphenoxy)-2,2-dimethyl acetic acid of the general formula in the presence of an alcoholic base, optionally followed by hydrolysis when R 1  is an alkyl radical and when the free acid is desired.
Patent GB-486439-A (GB)
Title: Improvements relating to prepayment meters
IPC: G07F15/06
Filed: 1936-12-02
Abstract: 486,439. Prepayment mechanism for meters. CHAMBERLAIN & HOOKHAM, Ltd., and JAMES, S. Dec. 2, 1936, No. 33042. [Class 27] Mechanism for prepaying basic charges.- A shaft a, continuously reciprocated through nearly one revolution by a constant speed motor, carries a disc b connected by a spring d to a toothed wheel c loose on the shaft. A pin f on the disc b contacts with an abutment e on the wheel c so that the wheel c is carried round by the disc b in one direction of rotation. The return rotation of the wheel c under the action of the spring d is, however, checked by engagement of a pin g on the wheel with an adjustable stop pin h whose position consequently determines the amplitude of oscillation of the wheel c. The return rotations of wheel c under the action of spring d are transmitted by a pinion n and a one-way ratchet-and-pawl drive q to a shaft p connected with the quantity mechanism. The stop pin h is carried by a disc i which can be rotated by a manual adjusting hnob j having a pointer w working over a scale indicating basic charges, and a locating arm x.
Patent GB-1078007-A (GB)
Title: Impact resistant graft copolymers
IPC: C08F279/02
Filed: 1964-08-14
Abstract: Impact-resistant graft copolymers are made by polymerizing 65-97% by weight of a monovinyl aromatic compound with 3-35% by weight of polybutadiene having a cis-1,4 content of 30-60%, a Mooney viscosity of 30-90 and a particle size in the final product of less than 6 microns.  The preferred vinyl aromatic compound is styrene, which may be used in admixture with alpha-methylstyrene. Polymerization is preferably carried out in two stages, in the first of which a mixture of monomer and polybutadiene and, if desired, a minor proportion of an inert solvent, is prepolymerized with agitation sufficient to produce polybutadiene particles of the required stage, and in the second of which the polymerization is completed without agitation, this stage being effected; if desired, in aqueous suspension. Peroxides are used as polymerization initiators.
Patent GB-1237215-A (GB)
Title: Needleloom fabrics
Inventor: MCNAIR WILLIAM DONALD
IPC: D04H11/08
Filed: 1967-07-19
Abstract: 1,237,215. Non-woven pile fabrics. COURTAULDS Ltd. 18 Oct., 1968 [19 July, 1967], No. 33185/67. Heading D1R. A method of producing a raised fabric comprises laying a wadding on a backing fabric and needling the wadding through the backing fabric to produce a pile on the reverse side the wadding having been needled prior to being needled through the backing fabric. The backing fabric is preferably a plain weave fabric of natural or synthetic fibres. The wadding may contain natural or synthetic staple fibres or mixtures thereof, examples given are viscose rayon and polyacrylonitrile fibres. The preneedling of the wadding may be effected by using differing needle penetrations or using different length needles in the same board. The needles employed have their barbs close to their points.
Patent GB-968186-A (GB)
Title: Milking apparatus
Inventor: RANDALL STIRLING JAMES DONALD
IPC: A01J7/02
Filed: 1963-08-22
Abstract: 968,186. Milking machines. J. J. BLOW Ltd. Aug. 22, 1963, No. 33290/63. Heading A1M. Apparatus to enable a milk pipeline to be flushed with water comprises a box unit or holder through which are passed three pipelines, namely, the milk line 15 which is connected to vacuum, a second pipeline 16 connected to a water supply and opening into the milk line, and a third pipeline 20 which is connected at one end to the water line 16 above its point of discharge into the milk line and is open at its other end to atmosphere, the lines being controlled by a manually operated cam 7 by which pressure is applied to each pipeline to close it against flow and which is so arranged that after milking the water line 16 is opened to admit water to the milk line, and that prior to restarting milking, the pipeline 20 is opened to release any water in the milk line. The box unit comprises two plates 2 spaced apart by studs 3 positioned to provide abutments against which the pipelines are pressed by cam followers 10-12 in the form of pins slidably supported in slots 13 in the plates. The cam 7 is rotated by means of a handle 9 to bring a flat 8 adjacent the pipeline to be opened.
Patent GB-1282277-A (GB)
Title: Improvements in or relating to apparatus for electro-photographically copying documents
Inventor: RUMBLE DAVID HORACE
IPC: G03G15/28
Filed: 1968-07-12
Abstract: 1282277 Electrographic apparatus MINIATURA Ltd 13 Oct 1969 [12 July 1968] 33437/68 Heading G2H A web of photo -conductively coated paper unwound from a roll 8, is charged on both sides by device 10, exposed at station 12 to an image to be reproduced; the latent image formed is developed and fined and then the web is either cut into sheets or rewound on to a roll 29. The image is produced from an original fed by rollers 3, 4 through an illuminating station 5. An optical system 14 comprises lenses 15, 16 and a mirror 17 in a mount 18 the position of which determines the magnification at station 12. Developing apparatus comprises a magnetic brush 26 above a trough 24 containing powdered iron filings and a plastic toner agitated by paddles 2, 5.
Patent GB-1471530-A (GB)
Title: Air ionization apparatus
IPC: H01T23/00
Filed: 1974-07-12
Abstract: 1471530 Discharge apparatus MEDION Ltd 12 July 1974 [13 July 1973] 33557/73 Heading H1D Apparatus for ionizing air by means of a corona discharge comprises a high voltage generator 30 and a discharge means, e.g. in the form of a needle 31, Fig. 3, in a metal-walled chamber 32 with an inlet 39 and an outlet 40, and a fan or blower 41 to provide an air flow. The ratio of the times taken to reach a chamber in the direction of air flow and at right angles thereto is greater than unity, and the air velocity is such that a substantial part of ionized molecules leaving the vicinity of the discharge are blown through the outlet more quickly than they can reach any wall of the chamber 32. The apparatus is situated in a room with walls 33. Chamber 32 has walls of steel plate, or thin steel or aluminium sheet or foil attached to a light frame. If the air flow reaches a value determined by the mathematical formula given, most of the ions generated are removed from the chamber 32 before striking the walls thereof. The outlet 40 may be covered by a metal grill. In a modification, Figs. 4 and 5 (not shown). the discharge means comprises a wire (42) extending between the sides of the chamber (32) but insulated therefrom, and the air passing the wire is deflected by a curved earthed metallic electrode (46) to pass out through an outlet (44) in the top of the chamber (32).
Patent GB-648530-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/32
Filed: 1948-12-31
Abstract: 648,530. Safety razors. TULLY, W. B. Dec. 31, 1948, No. 33641. Convention date, Feb. 12. [Class 30] In a safety razor the cap is provided with bladepositioning studs which pass through apertures in the blade-supporting plate, catch plates being mounted on the supporting plate and urged by spring means to engage notches or shoulders on the studs to secure the cap in blade-clamping position. As shown a handle 13 is secured to the supporting plate 6 which is apertured at 4,5 to receive blade-positioning studs 2, 3. Springs 22 mounted on guard rods 12 urge movable catch plates 15, 16 to engage notches 25, 26 in the studs by pressing against the flanges 19, 20 of the plates. Finger pressure on the fingerpieces 17, 18 of the plates releases the supporting plate from the cap 1 for insertion of a blade. The catch plates are maintained in association with the supporting plate 6 by a pressure plate 27, arms 28, 29 of which, project through recesses in the catch plates. The pressure plate 27 is apertured centrally to receive a shouldered collar,32 which is screw threaded on the handle and can be rotated to adjust the distance of the pressure plate from the supporting plate to accommodate a thicker blade or alter the edge-clearance of the blade. In a modification the cap is pivoted to the supporting plate and in further modifications the notches are on outer or lateral sides of the studs the studs may be replaced by set-screws with locking collars.
Patent GB-869151-A (GB)
Title: A process for the production of shaped products from linear high molecular weight polymers of olefinically unsaturated hydrocarbons
IPC: D01F6/04
Filed: 1958-10-21
Abstract: Films and filaments &c. are produced from linear high molecular weight polymers, such as polypropylene, produced by a low-pressure catalytic process from olefines by mixing the polymer with 5% to 60% of its weight of an aliphatic, aromatic or hydroaromatic hydrocarbon or mixture of hydrocarbons which has a boiling point or boiling range between 100 DEG C. and 215 DEG C. and which dissolves the polymer at elevated temperatures but not at ordinary temperatures, maintaining the polymer-solvent mixture at 120 DEG -180 DEG C. until a gel is formed, extruding the gel to form rods, subjecting them to a further shaping process either immediately or after comminution at a temperature 10 DEG  to 30 DEG C. higher than the gelling temperature, and then removing residual solvent from the film or filaments &c. The solvent may be an aromatic or hydroaromatic hydrocarbon substituted in the nucleus by one or more aliphatic hydrocarbon radicals having 1 to 4 carbon atoms.  Alternatively it may be a petroleum spirit fraction having a boiling range between 100 DEG C. and 185 DEG C., or toluene, xylene, decalin or tetralin.  In an example, a mixture of 70 parts of a lowpressure polyethylene having a molecular weight of 250,000 and 30 parts of xylene are gelled and extruded to form rods by means of a doublescrew extruder maintained at 125 DEG -160 DEG C. The rods are granulated after cooling and the granulated material extruded through an annular orifice by means of a single-screw extruder at temperatures maintained in successive sections of 140 DEG -170 DEG C. and 170 DEG -160 DEG C. to form tubes which are inflated to form tubular films.  The process of the invention permits of the use of lower extrusion temperatures and consequently reduces decomposition of the polymer.
Patent GB-953573-A (GB)
Title: An arrangement for setting hydraulic mine-construction members
IPC: E21D15/58
Filed: 1961-09-20
Abstract: 953,573. Hydraulic apparatus. BWG BERGWERKUND WALZWERKMASCHINENBAU G.m.b.H. Sept. 20, 1961 [Sept. 22, 1960], No. 33670/61. Heading F1P. An arrangement for setting, hydraulic mine construction members 6 comprises branch pipes 2, 21, 2<SP>11</SP> which connect a main supply pipe 1 to the members and are each provided with a non-return valve 3, 31, 311 bridged by a parallelconnected high pressure pump 4, 4<SP>1</SP>, 4<SP>11</SP> having a low-delivery capacity. The construction members are in the form of pit props and are extended during setting by the pressure in the main supply pipe, which pressure may be static or provided by high-delivery low-pressure pumps. The load on the props is taken up by the high-pressure pumps which are either switched off or switched to pressureless circulation when a predetermined pressure is reached. The high pressure pumps may be mounted on a sliding carriage on a face conveyer means so as to advance therewith.