baber/WOPTO huggingface dataset:
Patent GB-226732-A (GB)
Title: Improvements in and relating to trolley heads for electric collectors
IPC: B60L5/06
Filed: 1924-05-26
Abstract: 226,732. Stalder, M. D. May 26, 1924. Trolly heads, of the kind carrying springs which support the pulley wheel, comprise a base frame 1 provided with rocking members 7 each carrying one end of a spring 10, the other end of each spring having a bearing member 12 for the axle 13 of the wheel 20 which rotates between the springs. Each member 7 is pivoted to lugs 6 on the frame 1 and has a tapered lug 9 entering an aperture 5 in the base to limit the rocking movement. The axle 13 is adjustable in the bearings 12 and collars 15 are provided to space the wheel 20.
Patent GB-852206-A (GB)
Title: Improvements in or relating to gas cooled power reactors
Inventor: LOCKETT GEORGE EDWARD
IPC: G21C19/20
Filed: 1958-04-24
Abstract: 852,206. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 20, 1959 [April 24, 1958], No. 12993/58. Drawings to Specification. Class 39(4). In a gas-cooled nuclear reactor of the type described in Specification 36774/56, the vertically arranged core fuel elements and reflector blocks are urged together by the cooling gas pressure and are mounted on pivots at their lower ends. To permit the fuel elements to be lifted from the core the inward radial pressure of the reflector blocks upon the core is removed by pneumatic jacks which, when energised, displace the upper ends of the reflector blocks radially outwards away from the core.
Patent GB-540995-A (GB)
Title: Improvements in or relating to air-raid shelters
IPC: E04H9/12
Filed: 1940-08-15
Abstract: 540,995. Air-raid shelters. LOWE, A. C., and GILCHRIST, A. Aug. 15, 1940, Nos. 13041 and 13243. [Class 20 (i)] An air-raid shelter for workers in factories comprises separate cell-like units of concrete or metal sunk in the floor of the building with their tops level with the floor and with intercommunicating passages between the cells so that the occupants may escape in the event of one or a number of cells being covered with debris. Each cell a is provided with a cover formed of corrugated metal e, provided with internal and external handles, and also ventilation apertures f, those on one side leading to a tube which leads downwardly to near the bottom of the cell. A seat g is also provided and a cross-bar h to facilitate entry and exit. The intermediate partitions b<SP>1</SP> are provided with escape apertures j, by which the occupants of each cell may escape through other cells.
Patent GB-131282-A (GB)
IPC: E05B29/00
Abstract: 131,282. AndrÚani, A. Aug. 12, 1918, [Convention date]. Locks, revolving-barrel.-The revolving-barrel o of a cylinder lock contains two series of slides c, d arranged alternately and adapted to move in opposite directions under the action of springs c, Fig. 7, located between projections on adjacent slides. The key, Figs. 5 and 6, is of H-section, the sides f serving to move the slides inwards a short distance and the central waved portion g then acting on ribs u of the slides to draw these flush with the barrel and allow the latter to be turned. A groove m in the key ensures its correct position for insertion. A series of locks may be made for use with a master key by omitting some of the slides.
Patent GB-559923-A (GB)
Title: Improvements in and relating to electrical cut outs
IPC: H01H39/00
Filed: 1942-09-18
Abstract: 559,923. Cut-outs. OLDHAM & SON, Ltd., AKROYD, H., and HOLT, H. Sept. 18, 1942, No. 13176. [Class 38 (i)] A cut-out for isolating a battery from the wiring of, for example, an aircraft on impact comprises a housing 1 connected in the circuit by means of end caps 4, 6, one of which has a weakened zone and contains an explosive charge that is detonated by a striker. The cap 6 is weakened by an annular groove 15 and encloses a flanged sleeve 14 containing a detonator. The striker 8 located in the housing 1 between springs 9, 10, carries a pin 11 in line with an opening 12 into the detonator chamber. The housing is mounted in the aircraft &c. in such a position that the striker is thrown forward against the action of the spring 10 in the event of a crash. The striker can be locked by a pin 20 attached to a spring clip 19 and passing through a rubber washer 23 into a hole 21 in the housing 1. In a modification, the explosive charge 43, Fig. 2, has an electric ignition circuit 42 connected to an inertia switch. It is arranged in a housing 36 having a weakened zone 37 and attached to a collapsable strip connection 35 to form the electrical connection between the cable terminals 31, 32. The cross-section of the weakened zone may be reduced that the heat generated in the event of a short circuit will ignite the detonator.
Patent GB-868483-A (GB)
Title: New intermediates in the synthesis of reserpine and their preparation
Filed: 1957-10-30
Abstract: The invention comprises (a) dextro- and laevo- 5b -hydroxy-8-oxo-1,4,4aa ,5,8, 8aa -hexahydronaphthalene-1b -carboxylic acid, their salts with optically active bases, e.g. quinine, bromine, cinchonine and laevoephedrine, (b) laevo- 1,8,-lactone of 5b -hydroxy-8-oxo-1,4, 4aa ,5,8,8aa - hexahydronaphthalene- 1b - carboxylic acid (c) the laevo- 1,8-lactone of 5b ,8b -dihydroxy- 1,4,4aa ,5,8, 8aa - hexahydronaphthalene-1b -carboxylic acid, (d) the dextrolactone of 8b -hydroxy-2a -methoxy-3b ,5b -epoxy-1,2,3, 4,4aa ,5,8,8aa - octahydronaphthalene- 1b - carboxylic acid, (e) laevo- 3-hydroxy-2a -methoxy-7- oxo- 1,2,3,4,4aa ,7,8, 8aa - octahydronaphthalene-1-carboxylic acid, (f) its laevomethyl ester and (g) its laevomethyl ester 3-acetate, together with processes for their preparation.  Compounds (a) are prepared by optical resolution of the corresponding racemate, (b) is formed by lactonisation of the dextro- (a) with sodium acetate and acetic anhydride in methylene chloride, (c) by reduction of (b) with aluminium isopropylate in isopropanol, (d) by treating the dextrolactone of 8b -hydroxy-2a - bromo-3b ,5b -epoxy- 1,2,3,4,4aa , 5,8,8aa - octahydronaphthalene- 1b - carboxylic acid with sodium methoxide in methanol, (e) by reducing laevolactone of 6a -bromo-8b -hydroxy-2a - methoxy-3b ,5b - epoxy-7- oxo-4aa , 8aa - decahydronaphthalene-1b - carboxylic acid with zinc powder in a solvent, (f) by esterification of (e) with diazomethane and (g) by acetylation of (f) with acetic anhydride in a tertiary base. Detailed examples are given.
Patent GB-824085-A (GB)
Title: Improvements in or relating to a chain-stitching sewing machine
Inventor: BUONO MARIO
IPC: D05B85/06
Filed: 1956-05-08
Abstract: 824,085. Sewing machines. UNITED STATES BLIND STITCH MACHINE CORPORATION. May 8, 1956, No. 13256/59. Divided out of 824,084. Drawings to Specification. Class 112 The subject-matter of this Specification is identical with that described in Specification 824,084, but the claims are concerned with a sewing machine, while the claims of Specification 824,084 are concerned with a method of stitching.
Patent GB-392356-A (GB)
Title: Number indicating arrangements for the impulse transmitters of automatic telephone instruments
IPC: H04M1/56
Filed: 1932-05-07
Abstract: 392,356. Impulse transmitters. GREENBERG, W., 269, North 26th Street, Por'tland, Oregon, U.S.A. May 7, 1932, No. 13266. [Class 40 (iv).] An indicator for showing the number dialled is, associated with an impulse transmitter, the indicator being set by bars successively cooperating with a cam surface formed on the inside of the casing and setting the indicator drums through rack and pinion gearing. When the first digit of the number is dialled the end of the first bar 36 slides along the cam surface 7, formed on the inside of the casing 6, and moves the first indicator drum, through rack 28 and pinion 21, to display the relative indication. As the dial restores pawl 62 engages one of the teeth 23 and holds the indicator whilst the bar 36 drops into the lower slot 59 in the guide block 27 (see Fig. 5), to bring its end out of the range of the cam surface. The pawl 50 engages the first tooth on the ratchet selector 42 and allows the second bar 37 to fall into the path of the cam 7. This bar 37 is now moved in accordance with the second digit and sets the second indicator drum to display the second digit. On the return movement of the dial this bar 37 falls below the cam surface and 42 is' moved another step to bring bar 38 into operative position, the cycle being repeated for each digit dialled. To reset the mechanism the button 66 is depressed so that, by means of the linkage shown, the bars 25 are all raised above the selector ratchet 42, the holding dog 49 is disengaged from the teeth on selector' 42 to let the latter return to its normal position beneath the bars 25 and the holding pawls 62 are removed from teeth 23 to allow the indicator drums and operating bars to resume their original positions.
Patent GB-219438-A (GB)
Title: Improvements in or relating to reflectors
IPC: H05B31/00
Filed: 1923-05-17
Abstract: 219,438. Miethe, A. May 17, 1923. Reflectors; lenses. - A reflector, more particularly adapted for use in kinematographic projection, has a cooling chamber placed between an electric arc and the reflecting-surface, the arc being in front of the chamber, so that the latter is traversed twice by the rays of light from the arc, the reflecting-surface sometimes being brought into optical contact with the rear wall of the chamber. In the form shown in Fig. 1, the reflecting-surface a forms the rear wall and a transparent glass b forms the front wall of the cooling chamber which may be filled with water or a substantially colourless heat-absorbing solution, such as a ¢ per cent copper-iron sulphate solution, circulation being maintained by an inlet pipe e and an outlet pipe f. The reflecting- surface a may be spherical and the glass front b may be flat as shown, or it may be so shaped as to reduce or entirely correct the spherical aberration of the spherical reflecting-surface. The carbons g, h are disposed in the axis of the reflector, the negative carbon g being carried through a water-tight duct d in the cooling- chamber. In the form shown in Fig. 2 the effect of an ellipsoidal reflector is obtained by combining a paraboloidal reflecting-surface a with a spherical transparent refracting-surface b so as to form a lens-like body, which is preferably filled with a cooling liquid.
Patent GB-904142-A (GB)
Title: Improvements in or relating to gas-turbine engines
Inventor: LEFEBVRE ARTHUR HENRY
IPC: F02C7/141
Filed: 1959-04-17
Abstract: 904,142. Generating combustion products under pressure. ROLLS-ROYCE Ltd. April 7, 1960 [April 17, 1959], No. 13273/59. Class 51(1). [Also in Group XXVI] Combustion equipment for a gas turbine engine comprises means to introduce a coolant liquid into the combustion space both at the primary air inlet to the combustion space and simultaneously at a point between the primary air inlet and the combustion gas outlet. The combustion equipment shown comprises an annular air casing, formed by an outer wall 10 and an inner wall 13 having a ring of flame tubes disposed therein, each flame tube having a primary air inlet passage 20 and a fuel injector 23 at its upstream end and a combustion gas outlet 25 at its downstream end. Coolant liquid such as water or water-methanol is introduced into the flame tubes by means of spray devices 32 disposed within the air diffuser section 11, 14 one upstream of each primary air inlet passage 20, and by means of further spray devices 34 mounted on the outer air casing wall 10, one between each adjacent pair of flame tubes and spraying coolant liquid into the flame tubes through the air inlet openings 22 therein. The coolant spray devices 32 and 34 are connected by branches 31 and 33 respectively to a supply manifold 30. The combustion equipment may alternatively be of the kind comprising an annular flame tube disposed within an annular air casing, or a series of flame tubes each disposed within its own air casing.
Patent GB-132959-A (GB)
IPC: F01L1/053
Abstract: 132,959. Wolseley Motors, Ltd., and Wardell, T. Dec. 21, 1918. Valve - gear. - Cam gear, in which supplementary spring-loaded pressers engage cams so as to load the shat more uniformly by preventing the intermittent stresses to which the shaft would otherwise be subjected, is arranged so that the number of supplementary stresses introduced per revolution is one-half the number of the valve-actuating cams. Fig. 5 shows the points at which the cam shaft of a four-cylinder engine is subjected to stress; I<1>, I<2>, I<2>, I<4> are the points at which the four inlet valves are opened; E<1>, E<2>, E<3>, E<4> are the points at which the exhaust valves are opened; and B<1>, B<2>, B<3>, B<4> are the points at which the shaft is stressed by the supplementary device, no supplementary stresses being required between the pairs of points E<3> I<1>, E<4> E<3>, E<2> I<4>, and E' P. The loaded pressers may be leaf springs B<4>, Fig. 1, or spring-pressed plungers supported in the cam-shaft casing, and may engage one or more of the valve-operating cams or a special cam with one, two, or more swells; and one, two, or more presses may be used accordingly.
Patent GB-475049-A (GB)
Title: Improvements in or relating to automatic guns having a pneumatically actuated sear mechanism
IPC: F41A19/56
Filed: 1936-05-11
Abstract: 475,049. Machine guns. WERKZEUGMASCHZNENFA73RIK OERLIKON. May 11, 1936, No. 13309. Convention date, March 26. [Class 92 (ii)] Pneumatically-controlled sear mechanism particularly for machine guns on aircraft fired by a remote trigger has a pressure cylinder 1 on the gun which is connected by a port or valve with the atmosphere as soon as the trigger is released so that limited bursts only are fired. Further, a second cylinder 1u on the gun is supplied with air under pressure acting through a piston 3 to release a bolt S which locks the sear mechanism in non-firing position. In the form shown, pressure air is supplied by a pipe 5 under the control of a remote trigger. The air passes to the front of the cylinder 1u to remove the locking bolt S from a recess in a piston member 2 connected by a rod 13 to the cam N which in known manner operates to release the sear H, the piston 2 being then moved rearwards by the air pressure acting on its front face. When the trigger is released, air escapes through a permanent leak 1d and the piston returns under the action of a spring 12 carrying with it by the action of a pawl 8 a sleeve 17. A port 4c in the piston thus registers with an air escape port 1c permitting a quick return of the piston to locked position. The pawl 8 then rides off the sleeve valve which is returned to its original position by a spring 10.
Patent GB-130793-A (GB)
Title: An Improved Coal-gas Carburetter for Gas Driven Motor Vehicles.
Inventor: BUCKINGHAM EDWARD JOHN
IPC: F02B43/00
Filed: 1918-08-16
Abstract: 130,793. Buckingham, E. J. Aug. 6, 1918. Regulating.-A device for controlling air and gas comprises a cylindrical casing a through one end of which projects a gas-inlet pipe h, and in the wall of which an air port k is formed. The gas pipe is controlled bv a valve g, which is actuated, through a bar e, by a sleeve d which slides over the casing a and controls the port k. Slots f in the casing permit movement of the bar e, which is actuated through a connexion j in opposition to a spring i. The mixed air and gas passes a non-return valve l on its way to the engine cylinder. The device may be connected directly to the induction pipe or to the usual carburettor.
Patent GB-129006-A (GB)
Title: Improvements in or relating to the Reinforcement of Articles made from Clay or Clay-compounds.
Inventor: HUMPHRIS FRANK
IPC: B28B23/02
Filed: 1917-09-18
Abstract: 129,006. Humphris, F. Sept. 18, 1917: Materials, special.-Relates to electric and gas fittings &c. formed of clay or clay compounds reinforced by metal, and consists in covering the metal with a fusible glass prior to its incorporation in the clay; also the used as a reinforþement of corrugated metal, glazed or unglazed, which may be perforated or provided with jags, barbs, furcations, dovetails, hooked projections &c. to key with the clay &c. The glaze, which is not fired prior to the insertion of the reinforcement, may also be applied to reinforcements of netting, perforated metal, metal frames made of rods or tubes, or woven wire chains, ropes or rings. Fig. 1 shows a reinforcement for flat articles comprising a sheet a slitted at c and corrugated at d, d<1>; the sheet a may be crosscorrugated; Fig. 2 shows a sheet a corrugated at d and provided with jags b; whilst Fig. 3 shows a corrrugated and slitted tubular reinforcement.
Patent GB-851927-A (GB)
Title: Improvements in the drafting apparatus of textile spinning machines
Inventor: NUTTER WALTER
IPC: D01H5/26
Filed: 1958-04-28
Abstract: 851,927. Drafting apparatus. T, M. M. (RESEARCH) Ltd. April 17, 1959, [April 28, 1958], No. 13446/58. Class 120(2). In textile drafting apparatus having at least one endless apron 14 passing round a roller 14 and a tenser bar 16 a subsidiary member preferably a rod 17. is adjustably mounted on the tenser bar 16 to displace the apron 14 in a direction normal to the path of the material being drafted to augment the pressure and hence the control on the material at that point. The member 17 is attached to the bar 16 by slotted terminal lugs and set screws, by reversible spring clips engaged over the edges of the bar 16 or by slotted clips and set screws, so as to be adjustable towards or away from the nip of the front rollers.
Patent GB-134566-A (GB)
IPC: E04H17/08
Abstract: 134,566. Hutchinson, G. April 11, 1918. Wire fencing; standards. - Supporting-devices for fence wires comprise sheet-metal V-sectioned uprights having flanges 21 as described in Specification 1184/14 which are adapted to enter the ground and are pivoted to a plate buried below the surface, the supports being preferably employed to lessen the number of posts. The anchoring-plates 2 are cupped for strengthening purposes and are provided with lugs 4, Fig. 6, pierced with holes to receive curved pivot pins 3 which pass through similar holes in the ends of the supports and are bent at 23 to lock them in position. The supports may be continuous in outline or narrowed at the bases, which may be made of stouter material as shown in Fig. 2. Holes 8 may be provided for the reception of wire-securing clips 11, either throughout the length of one side or divided between the two edges. In a modification, the bases 2 may be buried just below, or rest upon, the surface.
Patent GB-852953-A (GB)
Title: Photographic elements having a modified paper base
Inventor: RICHTER GEORGE ALVIN
IPC: D21H17/14
Filed: 1957-04-26
Abstract: 852,953. Photographic papers. KODAK Ltd. July 25, 1958 [April 26, 1957], No. 13469/57. Class 98(2) [Also in Group VIII] 1-45% of the hydroxyl groups of the cellulose of paper carrying a light sensitive silver halide emulsion are esterified. Acetic or isobutyric anhydrides are preferably used as esterifying agents and esterification is carried further in the case of acetic than in that of isobutyric. The reaction may be accelerated by pre-soaking the optionally deaerated paper in methyl alcohol. In Examples 1-4, a waterleaf paper is reacted at 140-150‹C with acetic or isobutyric anhydride or with a mixture of equal quantities of these anhydrides and the potassium salt of the acid is used as catalyst. The reaction may take place under pressure or reflux and a spray or bath may be used. Afterwards the esterifying liquor may be evaporated from the paper by passing it over a heated roll at atmospheric or reduced pressure. The paper is subsequently washed with isopropyl alcohol or a fatty acid and with water and dried. In Examples 5-7 a paper of high alpha cellulose pulp or a waterleaf paper made from alpha pulp is esterified at 60-63‹C with acetic anhydride or a mixture of equal quantities of acetic anhydride and acetic acid using perchloric or sulphuric acid as catalyst. Subsequently the paper is washed overnight in cold running water. The esterified paper is of improved wet strength compared to the same paper untreated and is coated with a gelatine silver halide emulsion and optionally with a sub-layer of a gelatine or a gelatine and styrene-butadiene suspension of baryta. The esterification at over 100‹C may be carried out without a catalyst and butyric anhydride may be used. Small amounts of toluene or xylene may be present. Reference is also made to the use of sulphoacetic acid, zinc chloride or phosphoric acid as low temperature esterification catalysts using acid anhydrides and to pre-swelling the paper with water which is subsequently displaced by acetic or butyric acid.
Patent GB-409138-A (GB)
Title: Improvements in or relating to keyboard arrangements for typewriters
IPC: B41J5/10
Filed: 1933-05-09
Abstract: 409,138. Typewriters. DVORAK, A., 6021, 31st Avenue N.E., and DEALEY, W. L., 10219, 57th Avenue South, both in Seattle, Washington, U.S.A. May 9, 1933, No. 13472. Convention date, May 21, 1932. [Class 100 (iv).] Keyboards.-The keys of a standard typewriter for the English or other language are arranged to comprise some or all of the groups set out below, the composition of the groups being based on the relative frequency of letter-sequences, and being such that awkward finger-reaches are eliminated. The vowels are arranged together, preferably in the middle row, and consonants of high frequency are so arranged in relation to each other and the vowels as to facilitate typing of sequences. The keys for the vowels and for the letters f, g, c, r, l, d, h, t, n, s, b, m, and ware arranged for operation by opposite hands. The top row includes the keys for the letters p, y, f, g, c, r, l, and the punctuation marks. The middle row includes the keys for the letters a, o, e, u, i, d, h, t, n, and s. The bottom row includes the keys for the letters z, q, j, k, x, b, m, v, and w. The keyboard shown in the Figure includes all the groups set out above, and comprises, as compared with an ordinary keyboard, the following features. The most frequent digraphs are typed by alternate hands, and almost all the digraphs include a key in the middle row, a large number, moreover, being confined to the middle row. Fewer digraphs are typed by the same finger or adjacent fingers, or necessitate crossing the middle row. For digraphs that have to be typed by fingers of the same hand, the movement in the majority of cases is from an outer to an inner finger, and the right hand is generally used. The lateral halves of the keyboard can be transposed for left-handed operators. Specifications 7316/13 and 179,678, [both in Class 100 (iv)], are referred to.
Patent GB-365924-A (GB)
Title: Sparking plug with self cleaning means for internal combustion engines
IPC: H01T13/14
Filed: 1931-05-07
Abstract: 365,924. Sparking - plugs. SCHUBERT, E. E. JUNOD-, 4, Rue du College, Ste-Croix, Vaud; Switzerland. May 7, 1931, No. 13521. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 7, 1931.] [Class 7 (iv).] The curved end 17 of the central electrode is situated adjacent to one of a pair of openings 18 in an otherwise closed chamber 2. The inner end surface of the chamber is convex and the outer end surface flat around each opening. An inclined flange 20 projecting inwardly from the -casing protects the end of the insulator.
Patent GB-135375-A (GB)
IPC: E05F1/06
Abstract: 135,375. Heley, A. E., and Aitken, T. W. Jan. 28, 1919. Rising hinges for doors and gates comprise upper and lower members b, a, Fig. 4, having their opposed surfaces formed into three or more spiral segments, and interposed balls d confined to their respective spiral segments by radial crossribs c or equivalent stops on the lower member a. In the case of three spiral segments, the angular movement of the door or gate will be about 120 degrees. For greater angular movement, the segments and balls, are duplicated, as shown in Fig. 7, by providing an intermediate member i; or movement in either direction can be provided for by forming the upper and lower pairs of surfaces in reverse directions.