baber/WOPTO huggingface dataset:
Patent GB-863116-A (GB)
Title: Improvements in or relating to step ladders
Inventor: DOWNHAM ROBERT
IPC: E06C1/20
Filed: 1956-11-20
Abstract: 863,116. Step ladders. DOWNHAM & CO. (BLACKBURN) Ltd., R. Oct. 18, 1957 [Nov. 20, 1956], No. 35399/56. Class 20(2) A bracket 14 is secured to each leg of one of the pivoted parts 10 of a step ladder near the pivot 24 and has a flange 16 adapted to be engaged by the end of the other part 12 to limit the opening of the ladder for use. Two holes 26 are provided in the bracket for the ladder pivot 24 so that the bracket can be reversed and fitted on either side of the ladder.
Patent GB-994434-A (GB)
Title: Gas depolarized cell
IPC: H01M12/06
Filed: 1961-10-02
Abstract: 994,434. Accumulators. ELECTRIC STORAGE BATTERY CO. Oct. 2, 1961 [Nov. 4, 1960], No. 35488/61. Heading H1B. A rechargable cell using a supply of oxygen or chlorine as a depolarizer and an active material of iron cadmium or zinc as the anode. The anode is an aggregate of pencils 14 of active material, each as a sheath 17 and grouped around the control gas electrode 3. The gas supply for depolarizing is through a tube 9 which may be electrically rotated from the gas electrode to function as an auxiliary charging electrode. An alkaline electrolyte is used. The electrodes are preferably made from pencils of material utilizing two incompatible resins as disclosed in Specification 946,306.
Patent GB-320563-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K9/19
Filed: 1928-12-01
Abstract: 320,563. Baum, F. G. Dec. 1, 1928. Armatures and field magnets, cooling; enveloping in special media.-A dynamo-electric machine is cooled by directing on to the interior surface of its stator at a number of points along its length simultaneously currents of gas and a spray of oil or other suitable liquid which is collected and recirculated. When a non-combustible gas, such as nitrogen or carbon dioxide, is employed the risk of fire in the machine is reduced. Fig. 1 shows an enclosed machine in which oil is forced by an external pump 17 from a reservoir 16 through the outlets 19 of the hollow shaft 1. These outlets are connected to spraying devices 21, between the poles 4. The jet openings preferably register with the ventilating ducts 8 in the stator iron so that the emerging oil passes as a film over the iron to'the outer periphery of the stator from which it runs down to a compartment 14 at the bottom of the machine and from there to the reservoir 16 for recirculation. Provision is also made for the passage of gas currents from the rotor rim either through the poles or in the interpolar spaces. Fan blades on the rotor assist the internal gas circulation. In place of being introduced through a hollow shaft, the oil may be led, as shown in Fig. 3, from the pump through conduits 23 to an annular trough 24 inside the rotor rim with spraying outlets 27. It, as shown in Fig. 5, may be conveyed by tubular scoops 28 which lift the oil from the bottom of the machine casing into the rotor trough. These constructions are particularly suitable for squirrelcage machines. Specifications 170,946 and 301,838 are referred to.
Patent GB-1441104-A (GB)
Title: Measuring wheel equipment
IPC: G01B5/04
Filed: 1972-07-29
Abstract: 1441104 Variable - speed friction gear J CADDICK 24 Oct 1973 [29 July 1972] 35560/72 Heading F2D [Also in Division G1] Continuous material 10 to be measured in cut-off lengths rotates a measuring wheel 28 (see Division G1) which directly drives a cutter operating cam 82 through vertically and laterally spaced discs 66, 72 sandwiching a ball 68 held in a pivoted arm 88. The position of the arm and ball relative to the discs is varied by sliding a wedge shaped block 100 along a lead screw rotated by manually operable gearing G adjusted by turning a wheel 110, Fig. 2 (not shown) illustrates a practical arrangement of the gearing.
Patent GB-486129-A (GB)
Title: Improvements in or relating to stair-rod eyes or fastenings
IPC: A47G27/06
Filed: 1936-12-29
Abstract: 486,129. Making stair - rod eyes. PERRY, H. H., and PERRY, E. S. Dec. 29, 1936, No. 35567. [Class 83 (ii)] [Also in Group XIV] A stair-rod eye produced from a sheet-metal blank by stamping and pressing has plain abutment lugs e transversely inturned in opposed pairs from a pair of apertured triangular side checks b rearwardly bent in spaced relation from opposite edges of an inclined body part a of the eye. The body part has terminal attachment lugs c bent into two planes at right-angles and is pressed into convex formation transversely.
Patent GB-980976-A (GB)
Title: Improvements in or relating to fire extinguishers
IPC: A62D1/00
Filed: 1962-09-18
Abstract: A charge for a pressure type fire-extinguisher is a powder comprising a major proportion by weight of a fire-resistant material, e.g. sodium bicarbonate or borax and a minor proportion of an anticaking material, e.g. talc or a metal (e.g. magnesium) stearate and a pressurized propellant present partly as a liquid and partly as a gas which is a mixture of equal parts by liquid volume of dichlorodifluoromethane and trichlorofluoromethane.ALSO:A pressure type fire extinguisher comprises a container with a dispensing valve containing a powder comprising a major proportion by weight of a fire-resistant material, e.g. sodium bicarbonate or borax and a minor proportion of an anticaking agent, e.g. talc or a metal stearate such as magnesium stearate and a pressurized propellant present in the container partly as a liquid and partly as a gas which comprises equal parts by liquid volume of trichlorofluoromethane and dichlorodifluoromethane.
Patent GB-1046937-A (GB)
Title: Improvements in or relating to staircase brackets
IPC: E04F11/028
Filed: 1963-09-10
Abstract: 1,046,937. Staircases. N. E. NORYD. Sept. 10, 1963, No. 35618/63. Heading E1V. A staircase bracket for use in combination with strings of different inclinations comprises a downwardly-projecting portion 1 for securing to a string and integral with at least one horizontal projection 5, to support a tread and having a supporting surface to contact the string 9. The portion 1 is made up of two fork-like members 2, 3 and is in a plane of symmetry of the bracket, which is mounted on a string by a bolt in bores 6.
Patent GB-980908-A (GB)
Title: Liquid level indicators
IPC: G01F23/68
Filed: 1963-09-10
Abstract: 980,908. Indicating liquid levels. GENERAL MOTORS CORPORATION. Sept. 10, 1963 [Oct. 16, 1962], No. 35655/63. Heading G1N. A liquid level sensing device comprises an insulating tube 40 carrying a resistance element 42 and a conductor element 54, contacts 74, 76 on springs 70, 72 being linked by a conducter 68 and mounted on a float 62 of epoxy foam or metal, which is slidable along the tube. Two output leads 48, 60 are sealed in the cover cap 16 which supports the tube 40 and which has a nozzle 32 for carrying fluid from the bore of the tube. A housing 16 surrounding the tube has fluid inlets 24, carrying filters 26. The resistance element may be of metal foil or film.
Patent GB-1240714-A (GB)
Title: Dental operatory
Inventor: BARKER CHARLES THOMAS
IPC: A61G15/14
Filed: 1968-07-25
Abstract: 1,240,714. Dental stands. PELTON & CRANE CO. 25 July, 1968, No. 35656/68. Heading A5R. [Also in Division A4]  A dental cabinet includes a substantially horizontal counter extending throughout its length, the front edge of the cabinet being of stepped formation, in plan, to form two or more counter work-portions so that, when the cabinet is positioned centrally behind a patient-operating chain, the counter work-portions are conveniently placed for the dentist and his assistant sitting on opposite sides of the operating chair. The cabinet includes an upper, compartmented portion 20, housing trays of hand-tools, which can be removed. and laid on the counter when required for use, and a lower portion 22, below the counter, which houses bulky equipment such as gascylinders and drill-motors. Part of the vertical wall of the counter may include a drawer 61 having a front 62 which drops down to expose dental handpieces retractably mounted therein. In a modification (Fig. 9, not shown) additional wing-cabinets, each with its own counter, may be assembled at an oblique angle to the ends of the main cabinet forming a shallow U-shape in plan. These cabinets may house additional sink-units.
Patent GB-809754-A (GB)
Title: Modified formaldehyde polymers and method of preparing them
IPC: C08G2/20
Filed: 1956-11-21
Abstract: High molecular weight modified addition polymers of formaldehyde are made by polymerizing pure formaldehyde in the presence of a liquid hydrocarbon or diethyl ether, one or more polymerization initiators and a fluoroaldehyde of the formula XCnF2nCHO, where X is hydrogen or fluorine, and n is an integer from 1 to 4.  The modified polymer may be acetylated by treatment with a carboxylic acid anhydride such as acetic anhydride.  Fluoroaldehydes mentioned are di- and trifluoroacetaldehyde, heptafluorobutyraldehyde, and octafluoropentanol-1.  The aldehyde may be included in the reaction mixture, or added mixed with the monomeric formaldehyde. Hydrocarbons mentioned are the C5 to C10 alkanes, cyclohexane, methyl cyclohexane, isobutane, benzene and toluene. The initiator may be a trihydrocarbon phosphine, stibine, or arsine as described in Specification 742,135, a metal carbonyl of the type described in Specification 766,524, or an "onium" compound of the classes described in Specifications 766,629 and 793,673.  Exemplified initiators are dimethyl di(70 per cent octadecyl, 30 per cent hexadecyl) ammonium acetate and triphenylphosphine.  The polymers may be made into fibres, films, or bristles.  Specifications 744,336 and 753,299 also are referred to.
Patent GB-342043-A (GB)
Title: Improvements in, and relating to, pen, pocket and other clasp knives or combination tools
IPC: B26B5/00
Filed: 1929-11-21
Abstract: 342,043. Pocket knives and like folding tools. ENGLAND, H., 1, Rushdale Road, Meersbrook, Sheffield. Nov. 21, 1929, No. 35683. [Class 30.1 In a pocket, pen, or like knife or combination tool having two or more blades or implements, or a blade and an implement, each with a square-ended tang, the blades &c. a, bare pivoted on a pin c in the handle d by holes communicating with open oblique slots h in the tangs, whereby, when one blade &c. a is opened to the definite halfway position determined by the square end, the pressure of the back spring e on the remaining blade or blades &c. b is relieved, so that it or they can be readily removed, while, when all the blades &c. are fully opened or shut, they are locked in place by the spring.
Patent GB-418162-A (GB)
Title: Manufacture of carboxylic acid chlorides
IPC: C07C51/60
Filed: 1933-12-19
Abstract: Phosphorus oxychloride is obtained as a by-product in a process for preparing carboxylic acid chlorides by the action of chlorine on a mixture of a carboxylic acid anhydride with phosphorus trichloride or phosphorus.  Alternatively, phosphorus trichloride may be chlorinated partly or completely to the pentachloride in the presence of phosphorus oxychloride, which acts as a solvent, and a carboxylic acid anhydride then added to the mixture.ALSO:Carboxylic acid chlorides are prepared by the action of chlorine on a mixture of a carboxylic acid anhydride with phosphorus trichloride or phosphorus. Alternatively, phosphorus trichloride may be chlorinated partly or completely to the pentachloride in the presence of phosphorus oxychloride, which acts as a solvent, and a carboxylic acid anhydride then added to the mixture.  In any event, phosphorus oxychloride is obtained as a bye-product.  In the examples: (1) a mixture of phthalic anhydride and phosphorus trichloride is treated with chlorine, preferably at a temperature near the boiling point of the trichloride; the phosphorus oxychloride and phthalyl chloride formed are separated by distillation; (2) succinyl chloride is prepared similarly from succinic anhydride.
Patent GB-828974-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H9/34
Filed: 1957-11-18
Abstract: 828,974. Arc-rupturing in switches. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 18, 1957 [Nov. 26, 1956], No. 35813/57. Class 38 (5). In an arc-chute for an air-break circuitbreaker, a plurality of widened exhaust chimneys 20 are provided between the spaced insulating plates 13. The chimneys 20 are formed by substituting wide insulating spacers 19 for the asbestos rope spacers 17 in the assembly of the insulating plates. A chimney extension 22 of insulating deflecting angles 84 is cemented to the adjacent plates at the top of each chimney and is fitted with vertical metal mesh baffleplates 89. The chimney extension is illustrated in more detail in Figs. 4-6 (not shown). Single deflecting angles may also be cemented to the tops of the closely-spaced plates 13 to prevent flashover at the top of the arc-chute. Transfer arc-extinguishing structures 23, as described in Specification 785,957 are provided between the centre arc horns 47 on either side of the core 34 of the H-shaped blow-out magnet. The arc horns 56, 57 are each mounted on a channelshaped support member 66 and topped by a perforated asbestos plate 69. A cooling baffle assembly 74 is mounted above each arc horn 56, 57 and comprises perforated brass screens 77 and an insulating deflecting plate 82. The parts of the arc-chute are mounted between insulating side-plates 36 which are spaced by channelshaped members 108, 110, 111 each having its central web inwards. Specification 552,774 also is referred to. Reference has been directed by the Comptroller to Specification 785,957.
Patent GB-1276081-A (GB)
Title: Improvements in or relating to proximity sensing devices
Inventor: FARMER VICTOR MICHAEL
IPC: G01S17/18
Filed: 1965-08-20
Abstract: 1276081 Proximity fuze EMI Ltd 20 Aug 1966 [20 Aug 19651 35922/65 Heading F3A [Also in Division H1] A proximity fuze for an anti-aircraft missile includes a stimulated semi-conductor body, emissions from the body being reflected back by the target to the missile to operate it. As shown in Fig. 1, stimulated emissions from an infra-red radiation generator 1 provided by a Gallium Arsenide diode are focused by an optical system 2 into a beam for illuminating a target 4. The generator 1 is caused to emit a radiation pulse by means of a modulator circuit 3. Fig. 3 shows an example of the modulator circuit in which the GaAs diode 1 is connected in the emitter circuit of an avalanche transistor 20, the latter being caused to discharge a pulse forming delay line 21 through the diode at the appropriate time. The modulator also contains a timing circuit to ensure emission of pulses at appropriate instances in time. A modified modulator circuit (Fig. 4, not shown) includes a spark gap which is triggered. Reflected radiation from the target 4 is transmitted by optical system 5 to a silicon diode 6, the signal being amplified at 7 and applied to one input of a gate 8. The gate 8 is opened by the pulse from modulator 1 after passing through a delay 9, whereby only those signals resulting from reflections which are received from a target within a predetermined range are passed to the amplifier 10 and thence to a firing circuit 11. In a modified system (Fig. 5, not shown), the transmit and receive optics are laterally displaced by a specified distance to provide two converging beams which overlap each other at a distance from the missile, the system operating only when a target appears in the overlapping area.
Patent GB-394687-A (GB)
Title: Improvements in telephone or like signalling systems
IPC: H04B3/20
Filed: 1931-12-30
Abstract: 394,687. Two-way transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Abraham, L. G. ; 3, Morris Place, Madison, and Crisson, G. ; 29, Colonial Terrace, East Orange, both in New Jersey, U.S.A.) Dec. 30, 1931, No. 35995. Convention date, Jan. 30. [Class 40 (iv).] . In a four-wire transmission circuit having echo-suppressing apparatus located at or near each end, the suppressors are interconnected in such a manner that speech currents which pass the apparatus at the near end of the circuit are transmitted at the far end under all conditions, and disable the opposite path provided it is not carrying speech currents. Assuming speech currents arrive over the line L, relays R2, Rl energize at the end W, short-circuiting the E-W path and preventing short circuiting of the W-E path, while subsequently relays R4, R3 energize at the end E with similar effects. If, however, before the speech currents reach the end E, speech currents arrive over the line L<1>, they pass to the end W and operate relay R<1>3 to remove the short-circuit on the E-W path and are therefore transmitted to the line L. Relay R<1>4 energizes without effect on account of the operation of relay R1. The listening subscriber is thus enabled to break in readily when the talking subscriber pauses for a moment. It is stated that the echo-suppressing apparatus at the two ends of the circuit may be different types. Specifications 208,313, 338,517, [both in Class 40 (iv), Telephones &c.], and 354,790 are referred to.
Patent GB-813997-A (GB)
Title: Rack for storing a row of articles
Inventor: BROOME REGINALD GEORGE
IPC: A47B81/00
Filed: 1955-12-16
Abstract: 813,997. Drum storage racks. RUBERY OWEN & CO. Ltd. March 12, 1957 [Dec. 16, 1955], No. 36146/55. Class 78 (1). A rack 10 has rails 11 down which drums roll, the rails having a humped extension 14 pivoted at 15 and extension 17 pivoted both at 16 and at 19, the extension forming a stop for the lowermost drum. The rails 11 are additionally provided with a linkage 21, 22, 23 so that a lift truck may engage the linkage at 23A to effect a double pupose: firstly, to raise the pivots 50 of the linkage to form a stop for the next lowermost drum and secondly, to raise extension 14 whilst lowering extension 17 so that the lowermost drum rolls off on to the lift truck. The weight of the next drum reestablishes the position of the extensions and of the linkage so that said next drum is held by extension 17 till the lift truck returns.
Patent GB-368303-A (GB)
Title: Improvements in and relating to apparatus for recording and reproducing sound
IPC: G03B31/02
Filed: 1930-12-01
Abstract: 368,303. Feeding webs. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kellogg, E. W. ; 1185, Ardsley Road, Schenectady, New York, U.S.A.) Dec. 1, 1930, No. 36184. Convention date, Nov. 29, 1929. [Class 100 (i).] In a sound-recording or reproducing apparatus in which a sprocket 2 and a drum 3 engage with a film 1 in succession and are each driven at such a speed that an equal length of film is normally passed by both the sprocket and the drum, means are provided which are controlled by the number of sprocket holes passing in a given time period for adjusting the speed of the drum to maintain equality of average rate of feed by the sprocket and the drum. As shown, the film on its way from the sprocket 2 to the drum 3 passes over and drives a sprocket 20 connected to a gear wheel 22 similar to a gear wheel 23 connected to the sprocket 2. A pinion 24 meshes with the gear wheels 22, 23 and is carried by a bell-crank lever 25, 27 pivoted on a shaft 26 ; the arm 27 of this lever carries an electric contact 28 between two contacts 30, 31 in the circuit of a motor 40. This motor is geared to a screw-andnut device 37, 38, which adjusts the position of a friction pinion 13 on a cone. 12 in the driving mechanism of the drum 3. The motor 40 also drives a pinion 42 in mesh with a rack 34 on a rocking arm 33 carrying the contacts 30, 31. If the speeds of the sprockets 2, 20 are not the same, the pinion 24 is displaced one way or the other and the contact 28 touches the contact 30 or 31. This sets the motor 40 in motion, which corrects the speed of the drum by an adjustment of the friction pinion 13 ; at the same time the arm 33 is rocked to break off the motor circuit to prevent hunting or overcorrection. The sprocket device 20 may be replaced by an electrical contact-making counter. Specifications 293,381 and 295,378, [both in Class 40 (ii), Phonographs &c.], are referred to.
Patent GB-967883-A (GB)
Title: Improvements in or relating to foam control
Inventor: HWA CHIH MING
IPC: B01D19/04
Filed: 1962-09-24
Abstract: An antifoaming agent is a 1,2,3 polyoxypropylene glycerol of M.W. 1000-5000 or a polyoxypropylene derivative of 1,1,1 trimethylol propane. Its efficacy is increased by the addition of 5-20% of a quaternary ammonium salt containing at least one hydrocarbon chain of not less than 12 C atoms, or of a polyethylene glycol ester of an acid containing not less than 12 C atoms. Suitable quaternary ammonium salts are sold under the Registered Trade Mark "Arquad".ALSO:An antifoaming composition comprises a 1,2,3-polyoxypropylene glycerol of molecular weight 1000-5000, or a polyoxypropylene derivative of 1,1,1-trimethyl propane and 5-20% of a quaternary ammonium salt containing at least one hydrocarbon chain of not less than 12 C atoms, or of a polyglycol ester of an organic acid of not less than 12 C atoms.  Suitable quaternary ammonium compounds are sold under the (Registered Trade Mark) "Arquad 2C", "T", or "O". Tables illustrating the effects of various such additives on foaming are given.
Patent GB-1022587-A (GB)
Title: Improvements in or relating to the bonding of boards, panels or the like to building surfaces
Inventor: JAGGS JOHN
IPC: E04F13/18
Filed: 1963-09-16
Abstract: 1,022,587. Panelling walls. FORMICA INTERNATIONAL Ltd. Dec. 7, 1964 [Sept. 16, 1963], No. 36289/63. Heading E1V. A method of mounting a panel 16 comprising for example hardboard, asbestos cement or plywood comprises the steps of adhesively attaching to substrate 1 an intermediary comprising a plurality of spaced-apart non-metallic pliable and/or malleable strips or pieces 3 for example of hardboard, mechanically impacting said strips or pieces so that they conform with at least some of the irregularities, C, X, 18 of the underlying part of the surface of the substrate, and adhesively securing the panel to the intermediary. The intermediary includes strips arranged at least around the major portion of the panel periphery, and may also include additional strips or pieces located inwardly of the strips at the panel periphery and positioned to avoid substantial surface irregularities. The juxtaposed edges of adjacent panels are supported on a common strip 3 with an expansion gap left between the edges to receive a capping strip. The adhesive between the intermediary and the substrate and panels is preferably an impact adhesive.
Patent GB-1518154-A (GB)
Title: Terrestrial solar cell generator
IPC: H01L31/048
Filed: 1975-09-03
Abstract: 1518154 Solar cell LICENTIA PATENT VERWALTUNGS GmbH 3 Sept 1975 [25 Sept 1974] 36302/75 Heading H1K A group of solar cells and the elements interconnecting them to form a generator are embedded in glass-fibre-reinforced plastics material which surrounds them on all sides. Suitable plastics are polycarbonate, polyester, acrylic and epoxy resins. The interconnecting elements may be L-shaped and of strip, or for greater rigidity rod form and may when as described connecting the cells in parallel terminate in or be fitted with plug connectors. In manufacture the cells and interconnections may be assembled side-by-side between resin impregnated glass-fibre layers and the resin hardened.
Patent GB-1357853-A (GB)
Title: Battery terminal connector
IPC: H01M/
Filed: 1972-08-03
Abstract: 1357853 Battery connectors V T LLORENTE E C GALLEGO and R O MORENO 3 Aug 1972 [4 Aug 1971] 36312/72 Heading H2E  A battery connector has a bore c for the battery terminal and a perpendicular bore e for a wire. A screw f presses the wire into contact with the terminal either directly or through a leaden insert h. The connector body is of metal, plastics or ceramic and comprises a cylindrical portion containing the bore c and a trapeziform extension. A nut g and washers j provide for additional connections.