baber/WOPTO huggingface dataset:
Patent GB-851637-A (GB)
Title: Improvements in or relating to gas-filled electric discharge tubes
Inventor: COHEN EDWARD
IPC: H01J17/00
Filed: 1958-09-19
Abstract: 851,637. Cold cathode discharge tubes. GENERAL ELECTRIC CO. Ltd. July 22, 1959 [Sept. 19, 1958], No. 30093/58. Class 39(1). A gas filled corona stabiliser tube comprises tubular cathode 2 and internally and coaxially disposed wire helical anode 3 extending along the whole length ofthe cathode, the anode-cathode spacing being larger than the diameter of the wire but smaller than the pitch of the helix. The electrodes are supported between ceramic members 4, 5, held in glass tubular envelope 1 by mica spacers 6, 7. Anode lead 12, cathode leads 10, 11 passing through the envelope. The anode wire may be of iron, nickel, molybdenum or tungsten and the cathode of iron or nickel. The gas filling is hydrogen at 55 cms. of mercury. The dimensions of the electrodes are given.
Patent GB-1044869-A (GB)
Title: Improvements in or relating to lamps
Inventor: CHUNG SZE-YUEN
IPC: F21V17/02
Filed: 1965-07-15
Abstract: 1,044,869. Electric battery lamps. SONCA INDUSTRIES Ltd. July 15, 1965, No. 30184/65. Heading F4R. A hand lamp comprises a bulb-receiving socket 20 which is formed in one with a reflector 21 and has an inwardly extending skirt 25 within which is a contact cylinder 26 having a flange 27 contacting a flange 28 on the lamp bulb 29, and a contact strip 32 passing out through a slot in the skirt 25 to form a contact tag. The skirt fits into a member 33 having flanges 37 carrying contact strips 42, 43 which engage opposite poles of the batteries 57. The strip 42 has a shaped end to engage the end terminal of the bulb. The strip 43 is bent at right angles and formed with a V-shaped portion 51 engaging a pin 53 carried by a sliding switch member 54, movement of which depresses the free end of the strip 43 to bring it into contact with the strip 32. The casing consists of a body part 11 and a cap 12 having a lens 18 carried in a groove between two beads 16, 17, the edge of the reflector also fitting into the groove. The reflector consists of two arcuate surfaces 22 joined by flat side pieces 23 formed with a semicircular series of striations 24.
Patent GB-981561-A (GB)
Title: Preparation of alkyltin compounds
IPC: C07F7/22
Filed: 1961-08-22
Abstract: Alkyltin compounds may be prepared by reacting a trialkyl aluminium compound with an alkyl tin oxide, an alkyl tin salt of an aliphatic monocarboxylic acid, stannic sulphide or stannous sulphate in an inert hydrocarbon solvent.  The solvent may be aliphatic, cyclo aliphatic or aromatic. Specified are the hexanes, heptanes, octanes, nonanes, decanes, cetane, cyclohexane, methylcyclohexane, isopropyl-cyclohexane, 1,3 - dimethylcyclohexane 1,4-dimethylcyclohexane, 1,3,5 - trimethylcyclohexane, benzene, toluene, ethyl-, propyl- and butyl-benzenes, the xylenes, 1,2,3,4-tetrahydronapthalene, hexahydronaphthalene, decahydronaphthalene, petroleum ethers and petroleum naphthas.  The alkyl groups in the aluminium reactant, the alkyl tin oxide and the alkyl tin carboxylate salt preferably contain up to 10 carbon atoms. The reaction is preferably carried out between 20 DEG  and 150 DEG C., desirably at the reflux temperature of the solvent when this is benzene, toluene or xylene.  The trialkyl aluminium reactant may be used in excess.  On completion of the reaction the reaction mixture may be hydrolysed with water and the alkyl tin product isolated from the organic layer by distillation.
Patent GB-268848-A (GB)
Title: Improvements in aerial tuning with reaction units for radio service
IPC: H01F21/12
Filed: 1925-12-01
Abstract: 268,848. Taylor, J., and Rustige, H. Dec. 1, 1925. Inductances; wireless tuning-apparatus, adjustment devices for. - In a wireless receiving set having two or more aerial tuning inductances 6, 6a for two or more ranges of wave-length, a separate reaction coil 5, 5<a>, is provided for use with each inductance coil. The inductance and reaction coils are changed simultaneously by moving the lever 9 which turns a sleeve 4 carrying the coil 6a, contacts 23 mounted on the bobbin being adapted to make the required connections through plates 28 mounted on the base 1. The coupling between the coils is adjusted by turning the knob 10 fixed to the tube 8, which is internally threaded to engage the screwed portion 7<a> of a rod 7, 7<a>, 11. Rotation of the knob 10 causes axial movement of this rod, and the spools 5, 5<a>, are engaged by projections 16, 16a, protruding through longitudinal slots in the fixed tube 3.
Patent GB-520484-A (GB)
Title: An improvement in or relating to tractor-drawn agricultural implements and tractors therefor
IPC: A01B63/114
Filed: 1938-10-21
Abstract: 520,484. Tractor-drawn agricultural implements, BROWN & SONS (HUDDERSFIELD), Ltd., D., BROWN, D., and SYKES, A. Oct. 21, 1938. No. 30468. [Class 6 (i)] In a tractor-drawn agriculturar implement, the depth of cut is controlled by a power unit according to the variations in the position of a ground-engaging member relatively to the implement tool. A roller or skid a runs on the ground adjacent to the point b<SP>1</SP>of the tool b, and its arm c is connected by links d, eto a lever f which actuates a rod h to control the power unit which restores the tool b to the predetermined depth relatively to the roller a. In a modification shown in plan, Fig. 5, the roller arm c and tool arm k are pivoted at r and have their ends formed as cams c<SP>2</SP>,k<SP>2</SP> which bear on opposite ends of a lever s, the centre of which actuates the rod h if any variation occurs in the relative positions of the arms c, k. Two or more ground-engaging members may be employed, linked together so that local ground inequalities affecting one member only do not cause alteration in the depth of cut.
Patent GB-978119-A (GB)
Title: Film-faced body and method of making same
IPC: B29C70/00
Filed: 1962-08-09
Abstract: 978,119. Laminates and laminating. OWENS-CORNING FIBERGLAS CORPORATION. Aug. 9, 1962 [Aug. 11, 1961], No. 30592/62. Heading B5N. [Also in Division B2] A film-faced body such as an acoustic tile comprises a rigid porous base 12, a primary surfacing component deposited on a surface 14 of the base and a synthetic resin film 48 forming a covering in intimate contact with every part of the resultant surface but not adhered to the resultant surface. The base is preferably formed of glass fibres adhered together by a thermoplastic resin such as a melamine compound or a thermosetting resin such as phenolformaldehyde. The tile bases 12 are mounted on a conveyer 16 and coating material such as paint is delivered on to a major surface 14 from an applicator roller 24, the amount of coating material being insufficient to coat the surface completely, resulting in a random distribution on the surface 14. The tiles are then passed through a drying oven 42. The tile is then placed on a screen 64 mounted above a chamber 58 in which the pressure may be reduced. The thermoplastic film 48 is supported on a frame 66 and after being heated to a pliable condition is lowered on to the tile and a pressure differential is established between the upper and lower faces of the film, forcing it into intimate contact with the upper surface 14 of the tile. The film may be joined by adhesive to the edge regions 50 of the tile. A design of repetitive character may be stencilled to the upper face 14 of the tile base 12, or the primary component may be provided by a bonded swirl or strand mat. Other primary surface components include a glass textile or fabric, or a layer of chopped strands of glass fibres. Coloured powders or comminuted materials, glass or clay beads may also be deposited on the surface 14 of the base 12. The film 48 may be of polyvinyl chloride, polyvinyl fluoride, polyethylene, polycarbonate or polyester films, and may be translucent or transparent or may be white or pigmented.
Patent GB-398667-A (GB)
Title: Condenser with variable capacity
IPC: H01G5/06
Filed: 1932-10-31
Abstract: 398,667. Condensers. CSILLING, D., 13, Kanizsai-Ucca, Budapest. Oct. 31, 1932, No. 30609. Convention date, Nov. 3, 1931. [Class 38 (ii).] A variable condenser com prises two disc-shaped arma tures 2, 3 one secured directly to a mounting 1 the other capable of being moved relatively to the fixed disc as by a screw 5 and being sup ported by being fixed either to a spring 4 as shown or to a central spring-pressed spindle slidable axially. Reference has been directed by the Comptroller to Specifications 237,714, 255,413, 289,177, and 302,482, [all in Class 38 (ii), Electric currents, Converting &c.].
Patent GB-1401197-A (GB)
Title: Apparatus for lifting and or lowering loads
IPC: B66F13/00
Filed: 1972-06-30
Abstract: 1401197 Lifting apparatus; lifts R VOGEL 30 June 1972 [22 July 1971] 30634/72 Headings B8B and B8L [Also in Division D1] Lifting apparatus comprises a load, e.g. a lift cage 2, supported by at least one thin, flexible. spring steel strap 1 passed around and driven by a drive pulley 4 connected to drive means 6. The strap(s) may be longitudinally pre-curved, and given a transverse curvature by a convex surface on the pulley 4, which has a friction layer 5. The pulley and its driving gear may be mounted on the top of the lift cage (Fig. 3). In a further embodiment, the pulley 4 is mounted at the bottom of a lift shaft, the cage 2 and a counterweight 3 being supported from below by a strap 21. The cage 2 and the counterweight 3, in this embodiment, have rollers 31 guided by rails 30 secured to a post 27 in the lift shaft. The strap 21 is guided in sliding guides 33 carried by adjustable resilient carriers 35 on the post 27, with the edges of the strap 21 guided by rollers 32. The end of a strap is fixed to a cage by clamping between a wedge 41 and a housing 49 carried by the cage, a pin 51 being passed through the strap to prevent slip.
Patent GB-724892-A (GB)
Title: Rotary compressor sealing arrangement
Inventor: EHLINGER ARNOLD HENRY
IPC: F04D29/06
Filed: 1953-11-05
Abstract: 724,892. Axial flow compressors; stuffing- box substitutes. ALLIS-CHALMERS MANUFACTURING CO. Nov. 5, 1953, No. 30655/53. Classes 110 (1) and 122 (5). In an axial flow compressor comprising a rotor 17 mounted in bearings 26, 35, respectively housed in the inlet and discharge end portions 7, 8 of the compressor casing, leakage into the compressor casing of ambient air and oil vapour from the rotor bearings is prevented by means including a pair of coaxially spaced labyrinth seals 21, 22 at the inlet end of the rotor between the bearing 26 and the bladed portion 17a and a labyrinth seal 32 at the discharge end of the rotor between the bearing 35 and the portion 17a, the chamber 27 between the seals 21, 22 being connected with the discharge end portion 8 and the chamber 28 between the inlet bearing 26 and the outer seal 22 being connected to a source of suction. Discharge air or other gas is supplied to the chamber 27 through conduits 40 in the turbine rotor. A mechanical seal 30 is provided where the rotor shaft extends through the inlet end cover 15 of the compressor casing and any ambient air leaking therethrough passes via ports 31 into chamber 28. A pump 43 supplies oil from a pneumatically-sealed tank 41 through conduits 42a, 42b respectively to the bearings 26 and 35, and chamber 28 and the chamber 36 between the seal 32 and the bearing 35 are connected respectively through conduits 44a, 44, and ports 39, chamber 37 and conduits 44b, 44 to the space 41a above the oil in the tank 41 which is evacuated by a pump 45.
Patent GB-625843-A (GB)
Title: Improvements relating to ignition magnetos
IPC: H02K21/12
Filed: 1946-10-15
Abstract: 625,843. Ignition magnetos. SCINTILLA, Ltd. Oct. 15, 1946, No. 30677. Convention date, Nov. 28, 1942. [Class 35] By changing the stator core of a rotary magnet magneto having two armatures, single or double ingition can be obtained. As shown, the stator 6 comprises two parts displaced as shown to give a single spark in each of twentyfour cylinders, while for two sparks in each of twelve cylinders a similar yoke, but with the right-hand half moved anti-clockwise through half a rotor pole pitch, would be used. The polepieces shown dotted would be used for twin ,ignition, but omitted (at least the lower one) for single ignition. The two stator halves would be held by a non-magnetic ring (not shown) easily replaceable in the casing and one of the two circuit-breakers, also one of the two distributer rotors would need angular adjustment when the stators were changed. The shaft would be coupled to the driving shaft through a manual or automatic device for adjusting timing. Specification 625,844 is referred to.
Patent GB-537337-A (GB)
Title: Improvements relating to washer boxes for coal
IPC: B03B5/24
Filed: 1939-11-24
Abstract: 537,337. Washing coal. BLANTYRE ENGINEERING CO., Ltd., and KERR, W. Nov. 24, 1939, No. 30720. [Class 82 (ii)] In a washer box for coal of the kind in which the material treated passes towards the delivery end of the box in three layers a shale layer surmounted by a middling layer in turn surmounted by a coal layer, means are provided at the delivery end to segregate the shale and the middlings and to cause the shale to pass to one point of delivery and the middlings to another point. The coal layer 2 passes from the box through a channel 2a and the middlings layer 3 and shale layer 4 pass out through an opening 5 of variable height. To segregate the shale and middlings, a grid 6 is mounted over compartments 7, 8, 9 of the washer box, the compartment 7 and an adjoining compartment 16 being supplementary compartments of the kind described in Specification 486,958. The layer 4 falls through the section of the grid 6 nearest the opening 5 into the compartments 7, 8 and the layer 3 passes over and/or flows through that section of the grid remote from the opening 5 and falls into the compartment 9 and/or into the compartment 8. Small shale falls into the compartment 16 through a perforated plate 17a forming an extension of the usual perforated plate 17 of the box. The grid 6 comprises two sets 6a, 6b of tapered bars which mesh with each other and are pivotally supported at 10 near the opening 5. To permit adjustment of the spaces between the bars, the set 6b is connected to a vertically adjustable rod 11. An adjustable deflector 12 operated by a hand lever 13 connected thereto by a link 14 and lever 15 deflects the material in predetermined proportion between the compartments 8, 9. The shale and middlings are elevated from the bottom of the compartments 8, 9 by the buckets 8a, 9a of a double bucket conveyer.
Patent GB-704319-A (GB)
Title: Improvements relating to ventilating installations for vehicles
IPC: B60H1/00
Filed: 1952-12-03
Abstract: 704,319. Ventilating vehicles. DAIMLERBENZ AKT.-GES. Dec. 3, 1952 [Dec. 3, 1951], No. 30722/52. Class 137 A ventilator for a vehicle, particularly a motor vehicle, of the type comprising a duct which leads from an intake outside, to the interior of, the vehicle, preferably by way of a heat exchanger, is characterized in that the flow of air through the duct is regulated in accordance with the pressure of air at the intake of the duct. A duct 11, having a flared inlet 10, and leading into the interior of a vehicle has pivoted within it a throttle flap valve 12 which is tilted in accordance with the varying air pressure in the duct by means of a pressure responsive device 13 connected to the valve 12 by a linkage 14. In an alternative construction the flap valve 12 is assymetrically pivoted, the rising pressure of air through the duct tending to close the valve which is connected to a spring having a tendency to urge the valve open. Another embodiment of the invention provides for controlling the valve by means of a governor device driven to vary with the speed of the vehicle. In a further modification the air intake is supplemented by a blower, the valve being operated by a governor device through a linkage which is also arranged, when the speed of the vehicle rises above a certain level, to close contacts for energizing an electromagnet which opens a clutch, arranged between the blower and a driving shaft from the engine, and stops the blower.
Patent GB-519959-A (GB)
Title: Process for the manufacture of a chemical absorbent for carbon dioxide
IPC: A62D7/00
Filed: 1938-10-24
Abstract: 519,959. Alkali hydroxides. AUERGES. AKT.-GES., (formerly Degea Akt.-Ges.(Auerges), Oct. 24, 1938, No. 30752. Convention date, Oct. 25, 1937. [Class 1 (ii)] A chemical for absorption of carbon dioxide in oxygen rescue apparatus is prepared by intimately incorporating 2-5 per cent. of finely powdered calcium oxide with fused pure caustic soda, and cooling, solidifying and reducing to granular form the resulting product. The calcium oxide may be replaced by 2-6 per cent. of finely divided magnesium oxide, or by 4-8 per cent. of finely divided calcium hydroxide. In the last-mentioned case the resulting fused mixture should not be heated above 350‹C. The resulting melt may be cast into plates and thereafter reduced by crushing and sieving to grains of the required form and size.
Patent GB-842663-A (GB)
Title: Improvements in polymeric materials
Inventor: WILLIAMS ARTHUR ALAN
IPC: C08L9/00
Filed: 1957-10-02
Abstract: A thermoplastic moulding composition comprises (a) rubbery butadiene-acrylic (or substituted acrylic) ester copolymer, (b) polyvinyl chloride particles coated with an insoluble infusible synthetic resin using a P.V.C. latex from an emulsion polymerization process (the coated P.V.C. particles may be fused together before admixture with the copolymer) and optionally (c) previously uncoated P.V.C. particles which may also be previously fused together.  The said resin is preferably a polymerization product (which may be formed in the said latex), e.g. of an aldehyde witha phenol, urea, thiourea or aminotriazine, and particularly a formaldehyde-resorcinol resin; it may alternatively be a polymer of e.g. glycol dimethacrylate or allyl methacrylate.  The acrylic ester is preferably methyl methacrylate but also mentioned are ethyl, b -ethoxyethyl and b -chloroethyl methacrylates, methyl and ethyl acrylates and methyl a -chloroacrylate.  Other ingredients specified are white lead paste and calcium stearate in the composition, and the sodium salt of a substantially completely sulphonated methyl oleate as emulsifying agent in the vinyl chloride polymerization. Applications of the composition mentioned are extruded pipes, pipe couplings, refrigerator parts, kick panels for cars, protective helmets and tank linings for chemical plants.
Patent GB-1308029-A (GB)
Title: Indole derivatives
IPC: C07D209/43
Filed: 1970-06-25
Abstract: 1308029 Indole - derived aminoalcohols SANDOZ Ltd 25 June 1970 [25 July 1969 26 May 1970] 30818/70 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein R 1  is C 1-7  alkyl, C 3-4  cycloalkyl or 3-phenylpropyl, and processes for making them by (a) reacting 4 - (2,3 - epoxypropoxy) - 2 - methoxymethylindole and/or a 4 - (3 - halo - 2 - hydroxypropoxy)- 2 - methoxymethylindole with R 1 NH 2 , (b) debenzylating by hydrogenolysis, an N-benzyl derivative of a compound of the above formula, (c) hydrogenating a 4 - (3 - R 2 R 3 C:N - 2 - hydroxyproproxy) - 2 - methozymethylindole, wherein R 2 , R 3  are each C 1-3  alkyl, or R 2  is PhCH 2 CH 2  (R 3  = H), or R 2 -R 3  is (CH 2 ) 3 . Intermediates otherwise prepared are the N,N-dibenzyl and N-unsubstituted analogues of compounds of the above formula; and N-benzyl- N-isopropyl-3-chloro-2-hydroxypropylamine. Therapeutic compositions which are preferably administered orally, comprise compounds of the above formula, which have an antiarrhythmic effect, and a blocking effect on adrenergic beta-receptors.
Patent GB-308820-A (GB)
Abstract: 308,820. Schering-Kahlbaum Akt.- Ges. March 29, 1928, [Convention date]. Addition to 266,695, [Class 5 (i), Farmyard &c. appliances]. Preserving root crops.-Root crops containing carbohydrates are incorporated in the form of a paste with an agent, which when administered to animals acts as a narcotic, preferably in the liquid form in a very fine state of division. The agent may also be used in the form of a vapour or gas.
Patent GB-1359557-A (GB)
Title: Coating of glass fibres
IPC: C03C25/26
Filed: 1972-07-26
Abstract: 1359557 Coated glass fibres FIBREGLASS Ltd 26 July 1972 [1 July 1971] 30907/71 Heading B2E [Also in Division C3 and Dl] Glass fibres are sized by coating with aqueous size compositions comprising a silane, a polymeric film forming agent and an unsaturated cationic boundary lubricant composed of two major residues, one of which is derived from an unsaturated half ester or half amide, and the other of which is cationic in character, i.e. carries a positive charge or contains a centre or region of reduced electron density. Preferred boundary lubricants are those of formula wherein R 1  is C 6-24  alkyl or aryl, R 2  and R 3  are alkyl and X<SP>-</SP> is chlorine or bromine (especially where R 1  is)  or of formula 3 where R is C 7-24  alkyl and M is -O- or -NH-. The silane may be a vinyl trialkoxysilane, a methacrylato silane, an epoxy silane or an amino silane. The polymeric film forming agent may be a polyvinyl acetate or a vinyl acetate/methacrylate salt or vinyl acetate/ aminoalkyl methacrylate copolymer, optionally together with a plasticiser. The compositions may also contain non- ionic surfactants, e.g. polyoxyethylene ethers and esters, and amino esters of polyhydric alcohols. Examples describe aqueous size compositions comprising vinyl acetate/aminoalkyl methacrylate copolymer dispersion stabilised with cationic surfactant together with (1) polyoxyethylene sorbitan monolaurate, mono(dimethyl aminoethyl) maleate quaternised with pdodecylbenzyl halide, methacryloxypropyl trimethoxysilane and acetic acid; (3) mono(dimethylamino ethyl) maleate quaternised with pdodecylbenzyl halide and vinyl tris(methoxyethoxy) silane; and (4) an imidazoline of formula 3 where R is stearyl, vinyl tris(methoxyethoxy) silane and acetic acid; and the coating of glass fibres with size (1).
Patent GB-244131-A (GB)
Title: Radio receiving apparatus
IPC: H03F1/16
Filed: 1925-12-07
Abstract: 244,131. Minnium, B. B. Dec. 8, 1924, [Convention date]. Thermionic amplifiers and detectors.- In a balanced bridge arrangement for neutralizing interelectrode capacity reaction, the arms of the bridge comprise capacity elements only, which are independently adjustable (1) to secure the desired volume, and (2) are also adjustable either separately or by interconnecting gearing to tune the receiver to the received signals. The input circuit is arranged as shown in Fig. 1, the secondary coil 3 and two series condensers 8, 9 being connected across the grid 4 and plate 6, the latter connection including a balancing and blocking condenser 5. The filament is connected to the mid point 11 between the condensers 8 and 9. The input circuit can be redrawn as shown in Fig. 2, the input coil 3 and output or plate coil 12 being connected to opposite diagonals of a balanced-bridge arrangement in which the plategrid capacity 4, 6 forms one of the condenser arms, so that voltage variations occurring on the coil 12 have no resultant effect, on the input. The connection of the filament to the central point of the input circuit renders the bridge balance independent of the particular voltage distribution along the coil 3. The condensers 8, 9 may be geared together to a single control.
Patent GB-1244423-A (GB)
Title: Disc brake
IPC: F16D65/097
Filed: 1969-06-19
Abstract: 1,244,423. Brakes. KELSEY-HAYES CO. 19 June, 1969 [1 July, 1968], No. 31005/69. Heading F2E. The reaction pad of a disc brake is located against circumferential and radial movement relative to the caliper by means of pressed-up lugs 60 on the back-plate 56 which engage in holes 64 in the caliper frame. Headed pins 72 in holes 74 are held by spring clips 70 to hold the reaction pad in place. The caliper is located on torque plate 18 by straps 20 bolted to both and allowing axial movement of the caliper as it slides by pins 32 engaging holes in the plate 18. The torque is carried by shoulders 53 on the torque plate. Springs 63 hold backing plates 56 at ears 59.