baber/WOPTO huggingface dataset:
Patent GB-237634-A (GB)
Title: Improvements in or relating to magnetos for internal combustion engines
IPC: F02P1/00
Filed: 1924-03-29
Abstract: 237,634. Wheatley, D. Y. March 29, 1924. Magnetos, driving.-A magneto for internalcombustion engines is provided with an impulse starter in which the catch for temporarily holding the armature is inoperative until the engine stops, when it is released for re-use by the small reverse movement of the engine when it stops. The gravity catch a engages the notches c in the driven disc b, and is lifted therefrom by projections d on the driving member e. A spring connects the members b and e. Two segments 1, 1<a> are pressed against the disc b by the connecting spring 2, and are permitted limited rotary movement controlled by the stop 3. The segment 1 carries a stop 5 for holding the catch a out of engagement with the disc b. The small reverse movement of the engine when it stops moves the segments anticlockwise and withdraws the stop 5, thus allowing the catch a to drop and engage the disc b. When the engine is started the segments are moved in clockwise direction, and a projection d throws the rounded catch a over the stop 5.
Patent GB-1070137-A (GB)
Title: A method of producing 1,1,2-trifluoro-1-bromo-2-chlorethane
IPC: C07C17/087
Filed: 1965-02-25
Abstract: 1,1,2 - Trifluoro - 1 - bromo - 2 - chloroethane is produced by irradiating a mixture of hydrogen bromide and trifluorochloroethylene by high energy ionizing radiation having energy greater than 50eV, particularly gamma radiation provided by cobalt - 60.
Patent GB-566185-A (GB)
Title: Improvements in winnowing devices for grain and other discrete materials
IPC: F26B17/10
Filed: 1943-05-24
Abstract: 566,185. Pneumatic separating. NEWMAN, J. E., and KENNEDY, D. S. May 24, 1943, No. 8222. [Class 117] Apparatus for winnowing grain or other 'granular material consists of an upwardlyinclined duct a tapering outwardly, up which the material is carried by an air current, and provided with apertures or a sieve e at a point in its length at which. the velocity of the air current is reduced sufficiently to allow the heavier particles to drop out. The upper end of the duct merges into a length b of uniform cross-section which exhausts directly to the atmosphere or by way of a gravity trap c in which lighter material is collected. The material passing through the sieve e is discharged to the exterior through a casing g and shoot f; an aperture h discharges material passing over the seive. The material is conveyed to the duct from a hopper l by a pneumatic conveyer comprising a horizontal duct n merging into it by a smoothly curved junction o, and the shoot f leads into a second pneumatic conveyer duct i with a venturi section j by which the discharged material is carried to its destination such as the feed hopper k of a drier as described in Specification 523,391, [Group XIII]. The ducts n, i may be -supplied by one blower and a part of the air in the duct i may be byepassed to the casing g to equalize the pressure on both sides of the sieve e. A pair of devices may be associated for treating wet and dry materials and fed by a common blower.
Patent GB-766237-A (GB)
Title: Improvements in refrigerator cabinets
IPC: F25D17/04
Filed: 1955-03-22
Abstract: 766,237. Refrigerators. GENERAL ELECTRIC CO. March 22, 1955 [March 22, 1954], No. 8341/55. Class 29. In a domestic refrigerator cabinet having a storage,space 4 cooled by an evaporator 9, vertical channels 25, 26 are recessed into the rear wall liner to provide an uninterrupted flow of cold air to vegetable storage pans 19 situated at the bottom of the storage space. The storage space is divided into two compartments 11, 12 by horizontal or slightly inclined baffle 13 which directs cold air from the evaporator to the back wall of the storage space. The vegetable pans are preferably underslung from a solid shelf 24 so as to prevent diffusion of cold air taking place too quickly. The channels are preferably wider than their depth and may be recessed in the side walls of the storage space 4. Specification 721,116 is referred to.
Patent GB-557427-A (GB)
Title: Improvements relating to machinery driving belts
IPC: F16G5/16
Filed: 1942-06-18
Abstract: 557,427. Moulding pulley belts. STEPHENS BELTING CO., Ltd., and STEPHENS, E H. June 18, 1942, No. 8375. [Class 87 (ii)] [Also in Group XXIV] In driving belts for V-grooved pulleys of the kind comprising overlapping links of flexible material detachably connected by rivets inserted through slots in the links, the links are made from folded layers of fabric having holes between the folds for the reception of rivets. A sheet a, Fig. 1, of cotton or other woven fabric coated or impregnated with rubber is folded on itself two or three times to a width equal to about one-third of the required length of the links and so as to leave a flattened hole b. Then the folding is continued but of a width twice that of the first fold so as to leave another hole C in line with hole b. Again the folding is continued to leave a third hole d in line with band c ; the folding operations being effected around strips, coated with French chalk, in the spaces b, c and d. The resulting folded mass has a width equal to the length of the links required and is thicker at one end than at the other. The mass is then moulded under heat and pressure and is then sliced transversely along lines shown in Fig. 4 to form the individual links. Between these lines the mass is formed on both sides with saw-tooth-like indentations f, Fig. 3, so that the edges of the links will be mutually inclined to correspond with the inclined faces of the pulley.
Patent GB-435399-A (GB)
Title: Improvements relating to gyroscopic compasses
IPC: G01C19/38
Filed: 1934-03-16
Abstract: 435,399. Ball bearings. PULLIN & CO., Ltd., R. B., PULLIN, R. B., and PENGELLY, C. G., Seaford Road, West Ealing, London. March 16, 1934, No. 8390. [Class 12 (i)] [See also Group XX] The lower pivot 2<1> of the vertical ring of a gyro compass is restrained from lateral movement by a removable guide member 11. The lower end of the pivot is recessed and provided with an insert 14 of hard material such as the metal known under the Registered Trade Mark " Widia " and rests on a ball 12 which in turn rests on a replaceable plate 13.
Patent GB-847005-A (GB)
Title: Improvements in and relating to tubular heat exchangers
IPC: B01D45/12
Filed: 1958-03-17
Abstract: 847,005. Centrifugal separators. HUET, A. March 17, 1958 [March 18, 1957], No. 8488/58. Class 23 [Also in Group XIII] In a tubular heat exchanger for two fluids F, f, and comprising at least three concentric tubes c. d, I (see Group XIII) the centre tube l is formed with openings m in its wall and serves to separate and carry away through the openings m, vapour generated in the fluid F, the separated vapour passing upwardly through the tube l.
Patent GB-719108-A (GB)
Title: Improvements in mounting devices for metal plates in offset printing machines
IPC: B41F27/12
Filed: 1952-04-04
Abstract: 719,108. Printing-surfaces. GERICKE, E. April 4, 1952 [April 26, 1951], No. 8663/52. Class 100 (2). A mounting device for metal plates 2 on offset printing machines, in which the plate 2. is fixed to clamping strips 5, 6 and is displaceable on the plate cylinder 1 by shifting the strips 5, 6, is characterized in that each of the strips 5, 6 is mounted in a swivel bearing 9, 10 which is displaceable in the direction of the axis of the cylinder 1 and about which the corresponding clamping strip is rockable to a plane in which the clamping edge of the plate cylinder 1 is located. The clamping strips 5, 6 are slidingly supported on rails 7, 8 and are of angular shape. The swivel bearings 9, 10 comprise ball ends mounted on levers 11, 12 in turn mounted on sliding pieces 14, 16 by pins 13, 15. Levers 11, 12 are also provided with pins 17, 18 connected by spring 19. By tightening a screw 20 the levers 11, 12 are rotated about pins 13, 15 to clamp the plate 2. The sliding pieces 14, 16 are guided by pins and slots 21, 22 ... 24 and 26, 27 ... 29, and operated by eccentrics 25 and 30. The position of the swivel bearings 9, 10 is first set by the eccentrics 25 and 30 and the screw 20 is then tightened to clamp the plate.
Patent GB-506945-A (GB)
Title: Improvements in or relating to brooms and brushes
IPC: A46B9/00
Filed: 1938-03-22
Abstract: 506,945. Brushes &c. MODERN BRUSHWARE, Ltd., and MACKENZIE, A.K. March 22, 1938, No. 8738. [Class 19] A wall or ceiling broom comprises a relatively long and narrow stock A with bristles at each end A<2> forming a preferably unbroken brushing surface with main bristles B. The stock has a hole c for a handle set at about 45‹ with the base of the stock and in the same plane. The bristles B may be set staggered in the stock and do not normally splay. Instead of a wooden stock, a strip of channel 'section material may be used to grip the bristles.
Patent GB-314318-A (GB)
Title: Improvements in or relating to tiled wall coverings
IPC: E04F13/14
Filed: 1928-03-23
Abstract: 314,318. Nicholls, J. B. March 23, 1928. Securing tiles to surfaces.-Tiles, such as opalescent glass tiles 2, are applied to a cement layer 1 upon a brick, stone, or other wall surface, and are jointed by means of extruded lead strip 3 of H- or T- section, such as is used for leaded lights. After the cement has set, the protruding part 4 of the lead strip may be removed by a sharp tool, leaving a slight groove between the tiles, which groove is then filled in with plaster, cement, or lead of a similar colour to normal cement. Ornamental tiling thus produced may be combined with ordinary tiling effected in the usual manner.
Patent GB-982275-A (GB)
Title: Improvements in or relating to boxes
IPC: B65D25/06
Filed: 1963-03-05
Abstract: 982,275. Boxes. H. K. STAUB. Oct. 30, 1963 [March 5, 1963], No. 8804/63. Heading B8P. The internal surface of each side of a box has a plurality of uniformly spaced projecting ribs 16 perpendicular to the base of the box forming grooves to receive partitions. Partitions having further ribs corresponding to those on the walls engage in the grooves and can themselves engage further partitions. Longitudinal and transverse partitions may be integrally formed to engage in the said grooves. The illustrated box is of plastics material and has a hinged lid 12 with an integral latch 18. A rib 20 is formed on the wall opposite to and at the same height as the hinge so that the box may be supported on appropriately positioned rails. Four ribs 22 on the base and lid are positioned so that the rectangle defined by one set of ribs lies immediately within that defined by the other set when stacked. A label holder 24 is provided on one side wall and a projecting lug 26 has an aperture 28 through which a rod may extend to secure several boxes together.
Patent GB-250014-A (GB)
Title: Improvements relating to suction operated wind screen wipers for motor vehicles
IPC: B60S1/06
Filed: 1925-04-03
Abstract: 250,014. Lucas, Ltd., J., " and Egginton, W. H. April 3, 1925, Windows and the like, cleaning.-In suctionoperated wind-screen cleaners oscillated through the medium of piston or like means the wiper when not in use is held in the raised position by means of a hand-operated locking-piece which is under the control of a spring and is adapted to engage part of the wiper-actuating mechanism. As shown, a bar a connecting two pistons b is provided with notches c for engagement with a spring-pressed plunger f located in a socket e. A cross-bar h attached to the plunger engages in slots i in the socket e or in recesses at the end of the socket according to whether the cleaner is locked or unlocked. The inner end of the socket e or the plunger f may be adapted to form a guide for the bar a to prevent any rotation thereof. As a modification, a spring catch or plunger may engage the oscillatory member l which transmits motion from the bar a to the wiper n.
Patent GB-1388711-A (GB)
Title: Polyurethane pressure-sensitive adhesive products and processes
IPC: C09J7/38
Filed: 1972-02-28
Abstract: 1388711 Laminated adhesive tape ANCHOR CONTINENTAL Inc 28 Feb 1972 8999/72 Heading B5N [Also in Division C3] In Example 6, a toluene solution of a polyurethane adhesive is coated on to a siliconetreated side of a high density polyethylene strip or liner, the adhesive coated side is then rolled up in contact with a matching strip of uncured natural rubber mix and the resulting roll heated at 250 F. to evaporate solvent, cure and cross-link the adhesive and vulcanize the rubber backing.
Patent GB-1331928-A (GB)
Title: 2-ketopiperazines processes for their preparation and compositions  incorporating them
IPC: C07D241/08
Filed: 1972-02-28
Abstract: 1331928 4-Benzyl-2-piperazinones KYORIN SEIYAKU KK 28 Feb 1972 [26 Feb 1971(2)] 9061/72 Heading C2C [Also in Division A5] 4 - Benzyl - 2 - piperazinones of the general formula wherein each of R<SP>1</SP> and R<SP>2</SP> is a hydrogen or halogen atom or an alkyl group, R<SP>3</SP> is a hydrogen atom or an alkyl or aryl group and R<SP>4</SP> is a hydrogen atom or an alkyl group (which are novel except when each of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is a hydrogen atom), and acid addition salts thereof are prepared by reaction of an appropriate benzyl halide with an appropriate 2-piperazinone in the presence of an acid acceptor, followed optionally by salification of the product.
Patent GB-215726-A (GB)
Title: Process & apparatus for impregnating and rendering rigid pieces of paper or fabric of any form
IPC: D06B3/00
Filed: 1924-04-10
Abstract: 215,726. Manufacture de Machines Auxiliaires pour l'ElectricitÚ et l'Industrie. May 12, 1923, [Convention date]. Waterproofing; proofing processes; proofing- materials; wood, treating with liquids. - Paper, cardboard or fibrous materials such as the tubes employed in spinning, are impregnated with substances such as synthetic resins. The materials are placed in a stove 2 and are dried under vacuum and heat. Impregnating material is drawn into the stove from a vessel 1, and is allowed to impregnate the materials either under vacuum or atmospheric or greater pressure. After the impregnating substance has been returned to the vessel 1, the stove 2 is heated to drive off solvent, if necessary, and to polymerize the impregnating substance and so render the materials impermeable. In certain cases air may be admitted to oxidize the impregnating substance. A pump 8 is used to provide pressure or vacuum; a condenser 15 for controlling the initial drying and for recovering the solvent and a degreaser 14 are included in the plant.
Patent GB-243964-A (GB)
Title: Safety device for the steering levers of motor vehicles
IPC: B62D9/00
Filed: 1925-04-06
Abstract: 243,964. Paffen, H. April 6, 1925. Steering-gear.-The parts of the ball-joints a in the steering linkage are prevented from separating, when the ball or its stem breaks, by a link g, Fig. 4, pivoted on a neck of the steering arm b and also pivoted on a fork-member h formed on the ball-socket d. In the construction shown in Figs. 5 and 8 the fork h is secured to the socket d by clamps k one of which slips over a nut f of the ball-joint and prevents rotation of the nut. One end of the link g is pivoted on the fork hand the other has a sliding connection at q with a ring m free to rotate on a sleeve n which is mounted on the steering-arm b and serves to prevent a nut c from rotating.
Patent GB-676831-A (GB)
Title: Improvements in methods of producing artificial filaments
IPC: D01D5/06
Filed: 1950-04-13
Abstract: An artificial filament is obtained by extruding viscose into a liquid coagulating medium in which formation of free sulphur and consequent deposition of sulphur on the filament and on the spinneret are prevented by removing free oxygen from the medium. After the oxygen has been removed from the coagulating liquid, the latter may be impregnated with an inert gas, e.g. carbon dioxide or nitrogen.  The surface of the coagulating liquid may be blanketed with an inert gas which is heavier than air.  As shown, the spinning solution is extruded through spinneret 10 into coagulating liquid 14.  Container 15 is closed by a hinged <PICT:0676831/IV (a)/1> cover 17.  The free edge of the cover, when closed, is spaced slightly from the edge of wall 16 to provide passage for the filament 22.  The degassing apparatus 45 is connected by pipe 30 to a reservoir 32, which contains coagulating liquid, and is connected by pipe 34 to a receiver 36.  The liquid is charged with carbon dioxide through pipe 41.  A pump P propels the liquid from receiver 36 to the coagulating vessel 15.  A pipe 43 leads coagulating liquid to a regenerator 44 from which pipe 46 leads to the reservoir 32.  The liquid is reconditioned or reconcentrated in regenerator 44.  A pipe 48 leading from a source of carbon dioxide is provided so that carbon dioxide may be bubbled through the coagulating liquid.  Since the vessel 15 is closed except for the small outlet for the filament, a blanket of carbon dioxide is present over the surface of the liquid so that surface absorption of air or other gases by the liquid is prevented.
Patent GB-855800-A (GB)
Title: New cyclopentanophenanthrene derivatives and process for the production thereof
IPC: C07J75/00
Filed: 1957-03-20
Abstract: The invention comprises 4-halo-D 4-3-ketosteroids of the formul : <FORM:0855800/IV(b)/1> (wherein R is chlorine or bromine, R1 is hydrogen or methyl, with the proviso that when R is chlorine R1 is hydrogen only, R2 is hydrogen, lower alkyl containing less than seven carbon atoms, or ethinyl, R3 is hydrogen when R2 is lower alkyl or ethinyl, or represents hydrogen or a hydrocarbon carboxylic acid ester group of from 2-12 carbon atoms when R2 is hydrogen, R4 is hydrogen or hydroxy when R is bromine, and hydroxy only when R is chlorine, R5 is hydrogen or a hydrocarbon carboxylic ester group of from 2-12 carbon atoms, and R6 is a b -hydroxy group or a keto group), together with a process for the preparation of 4-bromo- and 4-chloro-D 4-3-keto steroids by treating the corresponding D 4-3-keto compound with alkaline hydrogen peroxide and treating the resulting 3-keto-4b ,5b -epoxide with concentrated HCl or HBr.  In the case of D 4-3-keto steroids bearing a 20-keto-21-hydroxy side-chain, the 20-keto group is preferably protected by conversion to the 20-ethylene ketal prior to the oxidation.  In examples: (1) testosterone in methanol at 0 DEG C. is treated with hydrogen peroxide and aqueous sodium hydroxide, 4b ,5b -epoxido-testan-17-ol-3-one isolated by extraction with methylene dichloride, and then treated in acetone with concentrated HCl or HBr, giving 4-chloro- or 4-bromo-testosterone respectively; subsequent acylation gives the 17-acetate, propionate, benzoate and cyclopentylpropionate esters; (2) to (4) similarly are prepared 4-chloro- and 4-bromo-derivatives of 17a -methyltestosterone, 17a -ethyltestosterone, 17a -propyltestosterone, 17a -methyl-19-nortestosterone, 19-nortestosterone, and its esters, e.g. acetate, propionate, benzoate, cyclopentylpropionate, progesterone, 17a -hydroxyprogesterone, 17a -ethinyl-19-nortestosterone and 17-ethinyltestosterone; (5) D 4-pregnene-11b ,17a ,21-triol-3,20-dione 20-monoethylene ketal is oxidized as in (1) and the resulting 4b ,5b -epoxido-pregnane-11b ,17a ,21-triol-3,20-dione 20-ethylene ketal treated with HCl or HBr, giving 4-chloro- or 4-bromohydrocortisone respectively, which are subsequently esterified to the 21-acetate, propionate, benzoate and cyclopentylpropionate; (6) as in (5) from the appropriate 20-monoethylene ketals are prepared 4-chloro- and 4-bromo-cortisone, D 4-pregnene-17a ,21-diol-3,20-dione, desoxycorticosterone, and their 21-esters.
Patent GB-649150-A (GB)
Title: Improvements in or relating to phenthiazine derivatives
Filed: 1948-04-01
Abstract: N - (21 - Dimethylamino - 21 - methylethyl)-phenothiazine is manufactured by reacting phenothiazine with 1-chloro-2-dimethylamino-propane in the presence of a binding agent for hydrochloric acid, preferably at an elevated temperature and in an organic diluent.  In an example, the acid-binding agent is sodamide and the diluent is xylene. 1 - Chloro - 2 - dimethylaminopropane is obtainable by the action of thionyl chloride on 2-dimethylaminopropyl alcohol, which is prepared by reduction of 2-dimethylaminopropionic acid.
Patent GB-672417-A (GB)
Title: Improvements in or relating to stabilized compositions of polymeric vinylidene cyanide
IPC: C08K3/30
Filed: 1950-04-14
Abstract: A solution of a polymer or copolymer of vinylidene cyanide is stabilized with an oxide of sulphur, e.g. sulphur dioxide, sulphur monoxide, sulphur sesquioxide, alpha-sulphur trioxide, beta-sulphur trioxide, sulphur heptoxide or sulphur tetraoxide. Specified solvents are dimethyl formamide, tetramethylene sulphone, and tetramethyl urea.  The solutions are used for spinning fibres and casting films. Specification 654,957 is referred to.
Patent GB-739762-A (GB)
Title: Improvements in high-tension transformer windings
IPC: H01F27/32
Filed: 1954-03-30
Abstract: 739,762. Transformers. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. March 30, 1954 [April 3, 1953; Feb. 4, 1954], No. 9243/54. Class 38 (2). The high tension winding of a transformer comprises a number of radially spaced concentric layers H<SP>1</SP>, H<SP>2</SP>, H<SP>3</SP> which are connected together by leads 11, 12 at alternate ends, the winding layers being insulated from one another by insulating cylinders 15, 16, 17, each of which has a flange C<SP>3</SP>, C<SP>1</SP>, C<SP>2</SP> respectively projecting radially outwards at one end only thereof, the projections being arranged at alternate ends of the winding and projecting outwards beyond the winding. The hightension winding H<SP>1</SP>-H<SP>3</SP> and the low-tension winding B surround a magnetic core 1 and are clamped between end plates D<SP>1</SP>, D<SP>2</SP>, insulating spacers 2-10 being utilized as required, some of which spacers are provided with oilways M whereby cooling oil may circulate around the windings. The insulating cylinders may be split longitudinally and overlapped as shown in Fig. 4.