baber/WOPTO huggingface dataset:
Patent GB-133595-A (GB)
IPC: A24F15/12
Abstract: 133,595. Levi & Co., S. J., and Ridley, F. A. March 1, 1919. Lids and covers.-A cigarette or like case is held closed by means of a concealed spring catch, the base c. of the catch being secured to the inside of the case part b and the upper part fashioned into a double bend a<1>, a<2>. As the case is closed, the inner edge of the rim d<1> snaps past the bend a<1>, forcing back the catch, which, on recovering its position, holds the case closed. The case is opened by forcing apart projections formed on the outer edges of the rims b<1>, d<1>.
Patent GB-562714-A (GB)
Title: Improvements in or relating to the manufacture and use of addition agents for lubricating oils
IPC: C07C2/86
Filed: 1942-09-23
Abstract: A halogenated aliphatic hydrocarbon having more than 10 carbon atoms in the molecule and a halogen content of at least 15 per cent is condensed with an aromatic compound in the presence of a halogenated hydrocarbon solvent having not more than six carbon atoms and 0.5 to 5.0 per cent of a Friedel-Craft catalyst calculated on the quantity of the halogenated high molecular weight hydrocarbon, the arithmetical product of the percentage of catalyst and the square of the percentage of halogen being at least 400.  The products are stated to have oxidation inhibiting and sludge dispersing properties and to improve the viscosity index and pour point of lubricating oil. Their effectiveness is indicated by tables and graphs.  Naphthalene, benzene, phenol, b -naphthol, diphenyleneoxide, dihydronaphthalenepolymers, diphenyl and mixtures, such as are found in coal tar fractions, may be used for the condensation and solvents specified include: tetrachlorethane, di- and trichlorbenzene, trichlorethane, and ethylenedichloride.  The reaction product is recovered by diluting with a solvent, washing with water, soda solution or alcohol and distilling, after removal of the sludge layer up to 600 DEG  F. Before distilling, naphthenic base oil may be added.  A table is given showing the properties of products obtained with various proportions and types of reactants.  The products may be used as additions to gasoline, kerosine, fuel oil and waxes and are useful for dewaxing.  They may be used in association with the usual auxiliary agents, such as soaps, dyes and thickeners.
Patent GB-320385-A (GB)
Title: Improvements in boats or ships running on rotatable floats
IPC: B63B1/36
Filed: 1928-05-07
Abstract: 320,385. Cooper, D. N. May 7, 1928. Aerial propeller installations. - Boats mounted on independently rotatable floats 2 disposed in two or more rows extending fore and aft of the vessel are propelled by an aerial propeller.
Patent GB-925743-A (GB)
Title: Improvements in or relating to methods of alloying material to semi-conductor bodies
IPC: H01L29/06
Filed: 1960-04-14
Abstract: 925,743. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 14, 1960 [April 17, 1959], No. 13395/60. Class 37. The area of an electrode alloyed to a semiconductor is limited by roughening the semiconductor. In one method (Figs. 1 and 6, not shown), an indium pellet is fused at 350‹ C. to N-type germanium. The surface of the indium and the germanium surrounding it is then " sand blasted " with alumina powder. The assembly is then heated to 600 ‹ C. so as to alloy the indium more deeply but the indium does not spread on to the roughened portion. In a further method (Figs. 7-12, not shown) a circular scratch is made around the alloying area by means of a diamond, the scratch limiting the spread of the indium during subsequent alloying. The method may be employed in producing a transistor (Fig. 13, not shown) a nickel tab being soldered to the germanium to provide the base connection. Figs. 16 and 17 show a stage in the production of an electrode by means of a number of indium pellets which fuse together to form a single electrode confined between diamond scratches 23, 24. Fig. 20 shows a transistor made by the method, having emitter 28, base connections 29, 30 and an alloyed collector 31 on the lower surface.
Patent GB-254068-A (GB)
Title: Improvements in or relating to mechanical screens, strainers and the like
IPC: D21D5/06
Filed: 1925-05-23
Abstract: 254,068. Milne, S. May 23, 1925. Rotary strainers; non-rotary straining machines with pulsating elements. - A strainer for paper pulp and the like comprising a perforated drum is provided with a rotary impellor having shaped shallow longitudinal blades which sweep over the inner surface of the drum to produce a pulsating movement of the pulp through the screen. The impellor blades e are mounted on a rotatable shaft d by spoked rings c. The blades may be of various forms one of which of bent sheet metal is shown in Fig. 6. In a strainer arranged for outward flow the drum b which may be rotatable is mounted in a vat a having an inlet g for unstrained pulp, an outlet g<1> for refuse and an adjustable weir f to control the level of the strained pulp. The strainer may be arranged for inward flow, the strained pulp being discharged by g or g<1>, and the refuse being withdrawn from the bottom of the vat.
Patent GB-135127-A (GB)
IPC: H05B31/00
Abstract: 135,127. Johnson & Phillips, and Pearson, G. C. May 8, 1919. Arc lamps.-In a projector, an electrode is positively rotated and fed by a nozzle conveying current to it. As shown, the nozzle comprises an outer rotary tube 5 within which is a sleeve 3 guiding the carbon socket 2, into which the flattened end of the electrode is dovetailed. At its forward end the sleeve 3 is flanged and is connected to the outer tube 5 by a key 8. Wings on the carbon socket 2 project through slots in the sleeve 3 into contact with an internally-threaded tube 13. This tube and the outer tube 5 are driven at slightly different speeds from a shaft 15 by gearing 20, 21 and 18, 19. Automatic acceleration of the feed may be effected by a solenoid which unclutches the pinion 20 from the shaft 15 and applies a detent to the wheel 21. A conducting split bush 22, preferably coned at each end, is closed on the electrode by the sleeve 3, which is pushed forward by a spring 26 at its back end. The spring is adjustably compressed by a screw cap 28 in a tube 25 secured by a bayonet-joint, and acts on the sleeve 3 through a piston 29, a ball 30, and a cap 31. An internal flange 32 restricts movement of the cap 31 when the tube 25 is detached. The outer tube 5 may be moved bodily to strike the arc. In a modification, the threaded tube 13 is not rotated, the wheel 21 being held by a detent; also the end pressure on the sleeve 3 is supplied by a spring-urged lever retractable by a handle. Specification 130,011 is referred to.
Patent GB-820954-A (GB)
Title: Improvements in or relating to esters of 2,3-dimercaptopropanol
Inventor: HUNTER WILLIAM HUBERT
Filed: 1956-05-02
Abstract: O-esters of 2:3-dimercapto propanol are prepared by a process wherein the alcohol is reacted by contacting, if necessary with heating, with a carboxylic acid halide of the general formula R.COX, wherein R is a substituted alkyl group or a substituted or unsubstituted aryl, aralkyl or cycloalkyl group, the substituents being such as are inert under the conditions of the reaction, and X is a halogen atom.  The reaction is preferably effected with acid chlorides and in the presence of a liquid which is a solvent for the alcohol and the acid halide, especially a hydrocarbon solvent.  Examples describe the preparation of the following O-esters of 2:3-mercapto propanol by refluxing the alcohol with the appropriate acid chloride in benzene with exclusion of moisture: (1) benzoate, (2) phenyl acetate, (3) o-chlorobenzoate, (4) p-chlorobenzoate, (5) p-methoxy benzoate, (6) hexahydrobenzoate, (7) b -methyl thiopropionate, (8) ethylthio acetate, (9) benzyl thio acetate, (10) 2:4-dichlorobenzoate, (11) a -naphthoate and (12) p-(p-toluene sulphonamido) benzoate. Certain of these esters have anti-tubercular activity.  According to the Provisional Specification, the esters may be prepared from acid halides of the general formula R1COX, wherein R1 is a substituted, e.g. halo-substituted, or unsubstituted alkyl, aryl, aralkyl or cyclo-alkyl group and an additional example is given employing palmityl chloride as reagent.  The esters, with the exception of the acetate, propionate, butyrate and the succinate, are stated to be new compounds.  Specification 687,069 is referred to.
Patent GB-308508-A (GB)
Title: Improvements in the insulation and securing of coil windings of lacquered wire
IPC: H01F41/12
Filed: 1928-05-09
Abstract: 308,508. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 9, 1928. Electromagnets; insulation. - A coil of wire insulated with lacquer is further insulated by means of a lacquer containing cellulose derivatives plasticizers, and solvents which only slowly attack the original lacquer coating. This lacquer may be applied to the wire and the coil wound while it is yet damp, or the wound oil may be impregnated with the liquid lacquer and dried. Two suitable lacquers are described, one is composed of nitrocellulose or cellulose carboxylate dissolved in alcohol, ethylene glycol mono-ethyl ether, butanal, tricresyl phosphate and an artificial resin prepared by the polymerization of vinyl alcohol. The other contains cellulose ethyl ether, cumarone resin, phthalic di-ethyl ester, benzene, ethyl alcohol, ethylene glycol monoethyl ether and butyl alcohol. Colouring matters may also be added.
Patent GB-401347-A (GB)
Title: Improvements in or relating to swinging chairs
IPC: A47C3/02
Filed: 1932-05-12
Abstract: 401,347. Swinging seats. IRA CO. SWISS WOOD WORKS, Soleure, Switzerland. May 12, 1932, No. 13681. Convention date, June 30, 1931. [Class 52 (ii).] In a swinging chair of the type wherein movement of the foot-rest causes the seat to swing in parallel planes between supporting side frames, the footrest is disposed in a frame member extending in front of the seat and in the same plane as, or in a plane parallel with, the seat in all positions of the latter during its swing. Such a device is shown in Fig. 1, comprising supporting side frames 1,. 7 and a swingable seat 2, carried by links 4. The foot-rest 9 is pivoted at 10 to a forwardly extending frame 8, and is connected to the forward links 4 by links 11. If the links 11 are flexible, the parts 8, 9 may be slid beneath the seat, when not in use. The seat carries a back 2a, angularly adjustable by means of the device 3.
Patent GB-769157-A (GB)
Title: Improvements in or relating to the capping and sealing of cartons, cups, and like receptacles, of paper or cardboard
Inventor: GEE HERBERT LEONARD
IPC: B65D43/00
Filed: 1955-05-12
Abstract: 769,157. Closure caps. GEE MANUFACTURING CO., Ltd. May 12, 1955, No. 13696/55. Addition to 719,404. Class 125(3). In a modification in the closure cap of the parent Specification, the cap consists of a combination of metallic foil a<SP>1</SP>, a<SP>2</SP>, a3 and a flexible thermoplastic or thermosetting compound b<SP>1</SP>, b2 b3 which permits heat-sealing of the cap to a carton x.
Patent GB-585450-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J21/06
Filed: 1941-10-24
Abstract: 585,450. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., GOODCHILD, F. D., and WOLSEY, W. H. Oct. 24, 1941, No. 13729. [Class 39 (i)] In ultra high-frequency electron discharge tubes of the kind described in Specification 585,448, wherein a copper disc 3 is sealed into the envelope to form a screen between the input and output sides of the tube (i) the anode 19 is hand soldered into a thin copper tube 18 sealed into the upper stem and (ii) the grid 5 is mounted on a molybdenum plate 7 carried by four pillars 10 from the lower stems. These pillars also pass through the copper disc 3, fixing collars 15 being welded on the pillars ; two pillars are extended to carry a mica bridge 16, which slides over the anode 19 and centres the grid and anode relatively. The grid is formed by winding wire on two rods 6, cutting the wire away on one side of the rods and then brazing the half grid on the plate. The cathode 12 is carried by a single wire 13 from the lower stem.
Patent GB-435577-A (GB)
Title: Improvements in and relating to electric converting systems
IPC: H02M3/31
Filed: 1934-05-07
Abstract: 435,577. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwyoh, London. May 7, 1934, No. 13758. Convention date, May 5, 1933. Addition to 374,012. [Class 38 (ii)] In a polyphase inverter system in which the D.C. terminals 10, 11 are bridged by a plurality of paths each including a pair of grid-controlled discharge devices 17, 20 ; 18, 21 ; 19, 22 and an inductive winding 14, 15, 16 as described in the parent Specification, intermediate terminals on the inductive windings are connected together either directly or through an inductive network 23, and the point of connection of the intermediate terminals, or the star point of the inductive network 23, is made to form one terminal 12 of a second direct current circuit (the other pole of which is formed by the terminal 11) which is energized from the first direct current circuit. Thus the system forms a direct current auto-transformer, the voltage ratio of which is determined in the first place by the turns ratio on the tapped windings 14, 15, 16, but may be varied by varying the phase relation of potentials applied to the grids of the valves 17, 18, 19 with respect to those applied to the valves 20, 21, 22. The grid potentials are derived from a transformer 29, 30 energized by an A.C. supply 31 which determines the frequency of the A.C. part of system. Commutating condensers 25, 26, 27 are connected across the whole or a part of the windings 14, 15, 16. Fig. 2 shows a modification in which provision is made for energizing an A.C. circuit 35 in addition to the secondary D.C. circuit 11, 12. In this case, two inverter systems A, B of the type described in the parent Specification are connected across the primary D.C. circuit 10, 11, and the star points of the inductive networks 23a and 23b of the two systems are interconnected through an interphase transformer 32, the mid-point of which forms the terminal 12 of the secondary D.C. circuit. A commutating condenser 33 operating at third harmonic frequency is connected across the interphase transformer. The windings 23a, 23b, form, in association with a secondary winding 34 a transformer for energizing the A.C. circuit 35.
Patent GB-1507624-A (GB)
Title: Apparatus for holding an opened sack for filling
IPC: B65B67/12
Filed: 1976-04-05
Abstract: 1507624 Clamping sack-mouths L JABELMANN 5 April 1976 [22 Jan 1976] 13775/76 Heading B8C Apparatus for holding sacks open for filling including an assembly for placing within the neck of the sack for holding it open, the assembly being formed of a magnetizable material, and magnets operatively coupled to the assembly for clamping the neck of the sack between the magnets and the assembly. The open neck of sack S is placed about a retaining ring or retaining plates 30 supported by a frame 10. Magnets 40, 41 are mounted on arms 31, 32 which are pivotably mounted on the frame 10 at 33, 34, thus permitting the magnets to be moved along the paths of oscillation x, x 1  by lever 51. The magnets may be electromagnets which may be automatically energized and de-energized respectively when they are brought into and out of the clamping position shown. Alternatively, the positions of the magnets may be fixed, whilst the retaining ring or plates 30 is replaced by a pair of members which are pivotable away from the magnets to allow the neck of a sack to be passed thereover, and towards the magnets to clamp the sack between the members and the magnets (Fig. 2, not shown).
Patent GB-1216773-A (GB)
Title: Expansion element for operating a thermostatic regulating member and combination tap
Inventor: BOEKELMAN WILLEM ANTONIUS SR
IPC: G05D23/13
Filed: 1968-03-21
Abstract: 1,216,773. Valves. METAALWARENFABRIEK VENLO N.V. 21 March, 1968 [31 March, 1967], No. 13804/68. Heading F2V. [Also in Division G1 A thermostatic valve is operated by an expansion element 27 of a thermoplastic synthetic material such as polyethylene or polypropylene, the element preferably having a generally tubular cross-section, whilst over at least a part of its length 27a, the wall thickness of the section does not exceed 2 mm. to ensure that the element has a suitably quick response to temperature changes. The valve as described relates to a mixing tap for a shower in which a double-acting valve element 16 reciprocable in a sleeve 17 controls the relative amounts of hot and cold water from inlets 2, 3, the mixture passing over the element 27 in a tubular housing 6 leading to an outlet 5, the expansion element 27 controlling the position of the valve element 16 to maintain the temperature of the water leaving the outlet 5 constant. One end of the expansion element is connected to a screwthreaded member 44 allowing adjustment of the water outlet temperature and the other end is connected directly to the valve element 16 through the agency of springs 35, 35<SP>1</SP> which prevent damage to the element due to overloading after the element has seated against either of the valve seats 20 or 21. The part of the expansion element 27a which has a wall thickness of less than 2 mm. is located upstream of the water flow and a further part 27b with a thicker wall section is also provided at the downstream end, the two parts co-operating to maintain the desired temperature, the thinner section 27a providing quick response to inlet water temperature changes and the thicker section the desired stability in the outlet temperature and prevention of over-compensation by the effects of the thinner section. The downstream end of the expansion element 27 may be closed to provide a stationary column of water inside the element and thus a degree of thermal insulation for the thicker end part 27b. A tube 29 is interposed between the element 27 and the housing 6 with a flexible guiding ring 30 positioned so that in conditions of a low flow rate the water largely flows along the expansion element, the ring being deflected to allow water to pass between the tube 29 and housing 6 at higher flow rates.
Patent GB-434709-A (GB)
Title: Improvements in or relating to resilient claw-couplings
IPC: F16D3/68
Filed: 1935-05-11
Abstract: 434,709. Flexible couplings. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. May 11, 1935, No. 13883. Convention date, May 29, 1934. [Class 80 (ii) In a flexible coupling wherein claws b on discs a, a<1> engage recesses in an intermediate rubber disc c, the latter is encircled by a sleeve e of rubberized linen fabric, which may, if desired, be secured to the disc by vulcanizing or by an adhesive.
Patent GB-1076861-A (GB)
Title: Electronic signalling apparatus
IPC: G08B1/04
Filed: 1965-04-01
Abstract: 1,076,861. Transistor switching circuits; inductive signalling. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN). April 1, 1965 [April 6, 1964], No. 13917/65. Headings H3T and H4U. [Also in Divisions B7 and G4] An arrangement for signalling a condition of a first member movable relative to a second member comprises: a coil 8 attached to the first member, and arranged to be connected in a closed loop on the attainment of the required condition; and a pair of mutually coupled coils 10 mounted on the second member; the arrangement being such that when the circuit through coil 8 is completed movement of it near the coils 10 changes the mutual coupling between them. As described, the coil 8 is mounted on the wheel of a vehicle, and the shorting switch 5 is actuated by the temperature or pressure of the tyre. If the switch 5 is closed, passage of coil 8 past coils 10 as the wheel revolves reduces the mutual coupling until relaxation oscillator 20, 21 ceases to oscillate. Bi-stable circuits 26, 27 and 29, 30 then change their state and lamp 32 is lit. When the coil 8 moves away from coils 10, oscillations re-start, and circuit 26, 27 changes back to its initial state. Diode 31a prevents circuit 29, 30 from resetting until reset switch 33 is actuated.
Patent GB-898499-A (GB)
Title: A process for dyeing or printing nitrogenous fibres and preparations for carrying out the process
Filed: 1959-04-23
Abstract: 898,499. Dyeing or printing nitrogenous fibres. CIBA Ltd. April 23, 1959 [April 30, 1958], No. 13931/59. Class 15 (2). Nitrogenous fibres such as wool, silk and polyamide fibres are dyed or printed from an aqueous bath containing a 1 : 2-chromium or cobalt complex of an azo dyestuff, the complex containing at least two acid solubilising groups, together with a compound containing at least one basic nitrogen atom to which is bound at least one residue containing a polyglycol ether chain, the compound containing at least three groups, at least two of which are members of said chain, and at least 4 carbon atoms not belonging to such groups. Suitable nitrogenous compounds are the reaction products of at least 3 molecular proportions of an α : #-alkylene oxide with one molecular proportion of an organic compound containing at least one basic primary or secondary amino group, or a basic tertiary amino group and an alcoholic hydroxyl group, or salts or quaternary ammonium salts of these compounds, those of the formula Wherein R represents an aliphatic hydrocarbon radical of at least 12 carbon atoms, m and n being 1 or 2 and p, q and r being whole numbers such that p+q+(m-1(n-1) is at least 3, or of the formula wherein R represents an aliphatic hydrocarbon radical of at least 12 carbon atoms and p and q are whole numbers such that p+q is at least 3 and advantageously 8-20, being particularly suitable. Esters of the above compounds with polybasic acids such as phosphoric or sulphuric acid may also be employed, as also may their water-soluble salts. Dyeing is preferably effected in an acid to neutral bath at a raised temperature. Printing, particularly of worsted tops by the slubbing method, may be effected with an aqueous paste containing also, if desired, a thickener such as tragacanth or British gum, an acid such as acetic acid, turpentine, hydrotropic substances such as urea and agents preventing reduction such as sodium nitrobenzene-sulphonate, the prints being finally steamed. Numerous examples are given. Specification 777,389 is referred to.
Patent GB-861879-A (GB)
Title: Improvements in and relating to circular knitting machines
Inventor: MUNDEN DENNIS LAWRENCE
IPC: D04B15/48
Filed: 1956-05-07
Abstract: 861,879. Knitting-machines. HOSIERY & ALLIED TRADES RESEARCH ASSOCIATION. Aug. 2, 1957 [May 7, 1956], No. 14010/56. Class 74 (2). Textile yarn is positively fed to the needles of a circular machine by a pair of rollers 4, 5 between which it passes without slip at a rate which bears a predetermined and fixed relation to the machine speed. The yarn passes direct to the needles from the rollers without being acted on by any take-up device. The rate at which the yarn is fed is therefore uninfluenced by any variation in the yarn tension, the movements of the loop forming elements being maintained at a value permitting the yarn to be knitted up without undue rise or fall in its tension between the needles and the rollers. The amount of yarn that is knitted into successive courses or successive parts of a course is, therefore, determined by the rate at which it is fed. The rollers may be cylindrical or, alternatively, tapered, in which latter case a guide positioned adjacent the tapered rollers is coupled to the stitch graduation cam whereby the rate of feed is varied as the cam is adjusted to vary the quality of the fabric.