baber/WOPTO huggingface dataset:
Patent GB-555017-A (GB)
Title: Improvements in or relating to sash-lined windows
IPC: E06B3/44
Filed: 1942-04-10
Abstract: 555,017. Sash-cord attachments for windows. MEE, J. W. April 10, 1942, No. 4743. [Class 20 (iii)] To enable sash cords (or broken panes) to be replaced without removing the sashes, each cord c is attached to the top rail e of a sash window by being secured to a metal fitting a screwed on to the styled and top rail. The upper part of the window frame is recessed at g at each side to take the metal fittings when the upper sash is closed. Movable panels l are detachably secured by spring arms m to the casings of the side pockets to give access to the weights k. A partition o in each weight box is suspended by a swivel fitting p so that it may be turned to give access to either sash weight. The fitting a has an eye b through which the cord is threaded, and a larger aperture v through which the knotted cord is pushed back into the fitting. The sashes may be glazed by bedding the glass sheets in one or more layers of paper or fabric, and fixing glazing strips q in position by screws.
Patent GB-525131-A (GB)
Title: Improvements relating to arrangements for extinguishing electric arcs
IPC: H01H33/59
Filed: 1939-02-14
Abstract: 525,131. Arc-rupturing in switches; gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. (Allgemeine Elektricitats-Ges). Feb. 14, 1939, No. 4850. [Class 38 (v)] The arc formed when the contacts K<1>, K<2> separate in the fireproof insulating chamber L, is extinguished by the reverse current produced by the discharge of condenser C through that part of the arc between auxiliary electrodes E', E<2> against which it rises or is driven by a magnetic blow-out or, as shown, by a blast of gas. The condenser is charged to the full voltage of of the D.C. circuit over resistances R<1>, R<2> so that its polarity is as indicated, which resistances are sufficiently high to limit the arc current and so cause extinction of the residual arcs between E', K' and E<2>, K<2>. The discharge-current of the condenser is determined by resistances R<3>, R<4>, or - a combination of both, but substantially the full line-voltage is applied to the discharge between electrodes E<1>, E<2>, the voltage-drop across which is only a fraction of that voltage.
Patent GB-882616-A (GB)
Title: Improvements in and relating to a resilient spike for rail-fastening
IPC: E01B9/08
Filed: 1960-02-11
Abstract: 882,616. Spikes. SONNERVILLE, R. P. Feb. 11, 1960 [Feb. 18, 1959], No. 4889/60. Class 89(2). A rail-spike comprises straight spring-steel blades 1, 2 united to form a shank and each having a bent-over head 3, 4, respectively, there being a gap a between the heads, which gap a serves to indicate, by the extent to which it is closed when the spike is driven-in, the degree of pressure exerted by head 3 on the rail-flange.
Patent GB-1530653-A (GB)
Title: Recovery of cuprous chloride from solution
IPC: C22B3/00
Filed: 1976-02-09
Abstract: 1530653 Recovery of cuprous chloride CYPRUS METALLURGICAL PROCESSES CORP 9 Feb 1976 [24 Feb 1975 3 March 1975] 04911/76 Heading C1A Cuprous chloride is recovered from a solution comprising cuprous chloride, cupric chloride and at least one other compatible (i.e. one in whose aqueous solution cuprous chloride is soluble at 40-100 C.), by crystallizing, by cooling, the cuprous chloride from the solution, the cupric chloride being present in the solution in an amount such that the molar ratio of cupric chloride to the compatible chloride is at least 0À1. Suitable compatible chlorides include ferrous and sodium chlorides.
Patent GB-1215873-A (GB)
Title: Improvements in or relating to sewage reflux prevention assemblies
Inventor: HOERNEMANN ARNO
IPC: E03F5/042
Filed: 1968-01-31
Abstract: 1,215,873. Valve traps. A. HORNEMANN. 31 Jan., 1968 [31 Jan., 1967], No. 5014/68. Heading E1C. [Also in Division F2] A valve trap with a double seal to prevent backflow of stormwater has an outer casing 1 with an extension 7, the portion 22 of the casing having a compartment 2 with a seal trap 4 separated by a perforated portion 20 from an inner casing 8 with an inlet 9 and an outlet 10 sealable by hard plastics balls 16 and 17 respeotively, guided by members 18. The lid 25 of the inner casing 8 has a dome 26 to receive the top of the ball.
Patent GB-1181064-A (GB)
Title: Improvements in Textile Yarn-Processing Machines
Inventor: WALKER DANIEL NORMAN
IPC: D01H13/18
Filed: 1966-02-04
Abstract: 1,181,064. Stop motion. T.M.M. (RESEARCH) Ltd. 2 May, 1967 [4 Feb., 1966], No. 5049/66. Addition to 1,079,833. Heading D1D. In a textile machine e.g. a wet doubling or twisting machine, wherein the yarn 17 passes between a driven roller 11 and a pressure roller 12 and holds roller 12 in its operative position against biassing means e.g. a spring 15, a pneumatic control arrangement is provided so that when yarn 17 breaks and roller 12 moves to its inoperative position, it actuates a spindle stopping device to halt the spindle. A yarn holding device may be simultaneously actuated. As shown when roller 12 and its arm 13 rise a member 16 on arm 13 lifts a lever 28 to allow a piston 22 to be lifted by air pressure in a line 32 and air lines 34a, 34b to be pressurised. Spindle stopping device. Line 34b leads to a piston-cylinder arrangement which when pressurised moves, through a linkage, an arm 73. This rotates a plate 61 surrounding the lower end of the corresponding spindle and shifts an idler pulley 64 on plate 61 so as to lift the spindle driving belt 65 clear of the spindle wharve 63. Simultaneously a brake member 68 mounted on a lever 66 pivoted on plate 61 and biassed towards the wharve by a spring 67 but normally held clear by a cam follower 69 engaging a flange on the spindle, is brought into engagement with the wharve by the follower 69 being brought to a portion of the flange having a flat 71. Thus the spindle is stopped. Yarn holding device. Air line 34a leads to a piston-cylinder arrangement which, when pressurised, grips the end of the broken yarn. The arrangement comprises, see Figs. 3, 4 not shown, normally aligned slots (42) and (49) in extensions of the cylinder and piston respectively through which the yarn passes. A pin (50) mounted in the cylinder extension passes through the slot in the piston extension. When the piston moves under pressure in line 34a the yarn is gripped between the pin and the slot in the piston extension.
Patent GB-528109-A (GB)
Title: Method and apparatus for reducing wear and tear in internal combustion engines
IPC: F02D17/00
Filed: 1939-02-16
Abstract: 528,109. Ignition systems. NEUMANN, W. Feb. 16, 1939, No. 5053. [Classes 7 (iv) and 7(vi)] Intermittent but cyclical suppression of ignition during normal working is effected by earthing members brought to engage the sparking plugs or distributer terminal. The members 9 form the cores of solenoids energized in turn by the closing of switches 16 by an engine-driven cam 14. The solenoids may be mounted on the distributer head or on brackets secured to the cylinder head adjacent to each plug, Fig. 4. Improved cooling and lubrication resulting in reduced wear and tear are produced.
Patent GB-138452-A (GB)
Title: Improved device for holding reels or bobbins of cotton, silk, linen or other thread
IPC: D05B91/14
Filed: 1919-03-01
Abstract: 138,452. Gasch, A. March 1, 1919. Drawings to Specification. Work companions.-A holder for reels of thread comprises a number of split pins mounted upon a base, one of the pins being formed longer than the others to receive a pin cushion and thimble holder placed over the pin on the top of the reel.
Patent GB-1502621-A (GB)
Title: Hydraulic anti-lock braking system
IPC: B60T8/32
Filed: 1975-02-06
Abstract: 1502621 Antiskid braking systems B RON S SHIBER and R H HUSTED 6 Feb 1975 [8 Feb 1974] 5136/75 Heading F2F An aircraft antiskid braking system includes a positive displacement hydraulic pump 14 driven by the wheel 12, a hydraulic brake 15 for the wheel and a metering device which permits flow through itself at a rate dependent on airplane ground speed and which is smaller than the pump output when the peripheral speed of the wheel equals the airplane ground speed, means for manually overriding the system and a conduit connecting an output port of the pump to an input port of the metering device, with the brake and with the override, the braking of the wheel being so regulated as to cause the pump output substantially to equal the metered flow and the override manually reducing and limiting the pressure in the conduit. The metering device comprises a second pump 19 driven by a second or nose wheel 13, of less output than the pump 14. The ratio between capacities of the two pumps thus regulates the wheel slip. The override is provided by a manual pressure relief valve 25 operated by the pilot by means of a master cylinder 27. Before the nosewheel 13 touches down, a valve 32 is in a position connecting the output of the pump 14 to a throttling device 30, thus restricting the brake pressure. Touchdown of the nosewheel is detected by pressure build up at 34 on the output side of the second pump 19. This causes valve 32 to be rotated to the positions shown bringing the anti-skid system into operation. At a lower ground speed, again detected by the fluid pressure at 34, the anti-skid system is disengaged by rotation of the valve 37 to connect the master cylinder 27 via lines 38, 24 to the brake 16. In another embodiment, Fig. 3, the pumps do not apply fluid direct to the brake caliper but act via a relief valve 58.
Patent GB-526418-A (GB)
Title: Improvements in or relating to modulator arrangements
IPC: H03F1/06
Filed: 1939-02-16
Abstract: 526,418. Valve modulating and amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and CLOUGH, N. H. Feb. 16, 1939, No. 5188. [Class 40 (v)] A modulator or amplifier comprises a main modulator valve Vm in series with a highfrequency driven amplifier R or a loud speaker or other audio-frequency load, and a sub-modulator Vs having its anode connected through a resistance Rb to the cathode of the valve Vm. Modulation input is applied at T 1 , T 2  and the varying voltage drop across Rb is applied to the grid of the valve Vm. The resistance Rb may be replaced by a resistance, shunted by condenser, in series with a choke, the resistance giving the necessary steady bias. In this modification the choke may be constituted as an auto transformer, or as a doubly wound transformer so as to apply larger variations to the grid of the valves Vm.
Patent GB-378801-A (GB)
Title: Improvements relating to ventilating apparatus
IPC: F24F3/14
Filed: 1932-02-22
Abstract: 378,801. Ventilating and air conditioning. MARSHALL J. and TURNER, N., 11, Cogan Street, Pollokshaws, Glasgow. Feb. 22, 1932, No. 5195. [Class 137.] A compact air-attemperating and ventilation unit, more particularly for ship use, is obtained by locating the air-delivery means substantially centrally and arranging the attemperating apparatus around it. As shown diagrammatically in horizontal section, air entering at 4 passes successively through a preheater 5, water sprays 6 and a moisture eliminator 7 into the eye 8 of the centrally arranged fan which delivers it downwardly via a heater (or cooler) to the outlet. The air supply at 4 is partly fresh and partly return in proportions controlled by a thermostat at the outlet, and the water supply for the sprays is a mixture of cold and hot (or steam) under control of a dew-point thermostat at T1. The water sprays extend over the greater part of the height of the unit. Heating and cooling elements are cut out or modified to suit outside conditions.
Patent GB-774438-A (GB)
Title: Variable control for speed actuated and other electric switches
IPC: H01H35/10
Filed: 1955-02-22
Abstract: 774.438. Centrifugal switches. WILLIAMS, W. J: Feb. 22, 1955 [March 11, 1954], No. 5256/55. Class 38(5) In a switch mechan-  ism suitable for being controlled by a centrifugal governor two switches 20 and 21 are actuated by the upward movement of a plunger 12 acting on a plate 15 which tilts and so actuates the switch pins 22, 23; the plate 15 being constructed with a number of holes 31 into which a removable pin 32 may be placed, the pin acting as a pivot on a plate 25 for the tilting of the plate 15. The disposition of the pin in the various holes permits variation in the time delay between the actuation of one switch and the other. A second pivoting point is provided by a spring-loaded pin 35 thus providing a pivoting axis between this and the pin 32. Further adjustments may be made to the timing by (a) adjusting the pin 35 by  means of screw 40, (b) adjusting the position of the upper casing (and hence the plate 25) by means of a slot and screw (Fig. 1, not shown), (c) by the provision of loops 47 in a spring 46 connecting the centrifugal weights.
Patent GB-810567-A (GB)
Title: Improved process for sweetening sour petroleum fractions
Inventor: RICHARD GEOFFREY PERCY
IPC: C10G25/05
Filed: 1956-02-21
Abstract: Mercaptans are removed from sour petroleum fractions by contacting them with a solid composition comprising alumina, kieselguhr or fuller's earth and sodium hydroxide, potassium hydroxide or calcium hydroxide.  The composition may also include lead oxide or sodium plumbite.  The composition may be formed by milling together the dried ingredients, by soaking the adsorbent in an aqueous solution of the hydroxide then drying and powdering, or by precipitating aluminium hydroxide from a concentrated solution containing an excess of basic ions so that appreciable quantities of the base are adsorbed on the aluminium hydroxide and then heating to convert the aluminium hydroxide to alumina.  The sweetening is carried out by contacting the sour fraction with the solid composition which may contain up to 5 per cent adsorbed water.  The spent solid composition is removed by sedimentation or centrifugally and may be regenerated by treating with steam or an oxidizing agent such as sodium hypochlorite or air, preferably under alkaline conditions, or by treating with a solution of elemental sulphur in an organic liquid followed by treatment with air.
Patent GB-1140619-A (GB)
Title: New metallised reactive azo dyestuffs and processes for their manufacture and use
IPC: C09B62/012
Filed: 1967-02-03
Abstract: 1,140,619. Dimethyl aniline disulphonic acids. CIBA Ltd. 3 Feb., 1967 [7 Feb., 1966], No. 5348/67. Heading C2C. [Also in Division C4] 2,5 - Dimethylaniline - 4,6 - disulphonic acid and 2,3 - dimethylaniline - 4,6 - disulphonic acid are obtained by heating finely powdered acid sulphates of the corresponding dimethyl anilines to form the corresponding monosulphonic acids which are converted into the disulphonic acids by treating with oleum.
Patent GB-886577-A (GB)
Title: A process for the manufacture of unsaturated alcohols and acyl derivatives thereof
IPC: C07C33/02
Filed: 1960-02-16
Abstract: The invention comprises the novel alcohol hexadecadien-(10, 12cis)-ol-(1) and methods of making alcohols and acyl derivatives thereof of general formula A-CH=CH-CH=CH-B in which A and B are each straight chain alkyl groups collectively containing 10-14 carbon atoms, one of them having a terminal hydroxy or alkanoyloxy group as a substituent.  These compounds may be prepared by either condensing a halide of the general formula A1-C ­ C-CH2-halogen in a Grignard or Reformatzby reaction with an aldehyde of the general formula B1CHO and splitting off one molecule of water from the acetylenic carbinol so obtained or by condensing an enynic compound of the general formula A1-CH=CH-C­CH in the form of an alkali metal or halogen-magnesium derivative thereof with a halide of the general formula halogen-B1 (in which A1 and B1 are alkyl groups which collectively contain 9-13 carbon atoms, one of which contains as a terminal substituent a carboxyl or esterified carboxyl group or an etherified hydroxy-methyl group, or an acetal group or a hydroxymethyl or alkanoyloxymethyl group) and then catalytically partially hydrogenating the product and converting in a manner known per se any carboxyl, esterified carboxyl, etherified hydroxy-methyl or acetal substituent therein into a hydroxymethyl or alkanoyloxy-methyl group.  The water may be split off from the acetylenic alcohol by treatment with known dehydrating agents, e.g. phosphorus oxychloride or phosphorus pentoxide.  The partial hydrogenation of the triple bond is advantageously carried out in the presence of a lead-inhibited palladium catalyst.  In the examples (a) hexen-(3)-yne-(1), obtained by treating the p-toluene-sulphonic acid ester of hexyn-(1)-ol-(4) with potassium hydroxide solution, is added to a suspension of sodium amide in liquid ammonia; pyranyl ether of 9-bromo-nonyl alcohol is added to the sodium derivative so obtained; the product is heated with methanol and p-toluene sulphonic acid and pentadecaene-(12)-yn-(10)-ol-(1) is separated from the resulting mixture; this alcohol is then hydrogenated in the presence of a lead-inhibited palladium catalyst and quinoline to give pentadecadien-(10,12)-ol-1; and (b) granulated zinc is activated by treatment with iodine and mixed with mercuric chloride; a mixture of 1-bromo-hexyne-(2), 10-acetoxy-decanal and diethyl ether is added; 1-acetoxyhexadecyn-(12)-ol-(10) is separated and is added to p-tosylchloride giving 1-acetoxy-10-p-tosyloxy-hexadecyne-(12) which is treated with potassium hydroxide; the resulting crude hexadecaene-(10)-yn-(12)-ol-(1) is partially hydrogenated in the presence of a lead-inhibited palladium catalyst to give hexadecadien-(10,12cis)-ol-(1); on further hydrogenation of the product cetyl alcohol is obtained.
Patent GB-754945-A (GB)
Title: Improvements in direct coupled amplifiers
Inventor: THOMAS ERIC LLOYD
IPC: H03F1/30
Filed: 1953-02-26
Abstract: 754,945. Valve amplifying circuits. SHORT BROS. & HARLAND, Ltd. Feb. 11, 1954 [Feb. 26, 1953], No. 5411/53. Class 40 (6). In a direct-current amplifier D drift is reduced by periodically charging a condenser C, in series with the output to a potential equal and opposite to the drift potential. The signal comprises a succession of pulses, and the input of the amplifier and terminal Y of the condenser C are earthed between pulses by means of switches S1, S2 respectively, which are operated by a relay R in the anode circuit of a valve V1 driven from the pulse source B. The output from the amplifier D is derived via a cathodefollower A, overall feedback being obtained by means of impedances Z1, Z2. The impedance Z2 may be capacitive, the arrangement then comprising an integrating circuit. Specifications 745,656 in Provisional Specification and 745,660, [both Group XXXVI], are referred to.
Patent GB-676908-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/84
Filed: 1950-03-03
Abstract: 676,908. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., ALLARD, L. S., and HILL, R. T. Feb. 27, 1951 [March 3, 1950], No. 5456/50. Class 39 (i). A cathode-ray tube, which may be a television receiver tube, has the first accelerating electrode 4 appreciably spaced from the modulating electrode 3 along the path of the beam and has a pair of electrostatic deflecting plates 13 for an ion trap arranged in the space between the modulating and first accelerating electrodes and connected within the tube envelope each to a different one of two electrodes of the electron gun assembly between which a large potential difference'is maintained in operation. Preferably, as in the Figure, the deflecting plates are connected to the modulating electrode and the first accelerating electrode, and are in the form of part cylinders which may be welded to their respective electrodes or made in one piece with them; the variation in potential of the modulating electrode is usually too small to affect the operation of the ion but can, if necessary, be counteracted by arranging for the magnetic field of the ion trap to vary in a corresponding manner. The magnetic field may be produced by one or more permanent magnets or by electromagnetic means which may be inside or outside the tube envelope. The electrodes may be supported by copper-nickel plates 7 clamped to three steatite rods 8, of which two are shown, the assembly being supported at one end by two wires 10 set into the finish and supporting two of the rods 8, and at the other end by spring fingers 12 abutting against the wall of the envelope. This form of ion trap also prevents ion bombardment of the cathode. Specification 499,532 is referred to.
Patent GB-721872-A (GB)
Title: Improvements in clamping means for cables particularly electric cables in plug and socket connectors
IPC: H01R13/59
Filed: 1951-03-06
Abstract: 721,872. Two-part couplings. BENDIX AVIATION CORPORATION. March 6, 1951 [March 7, 1950], No. 5461/51. Class 38 (1). In a modification of the plug or socket connector according to Specification 632,501, a resilient grommet 29 surrounding the connections between conductors 24, 25 and contact members such as 12, 14 is compressed radially on to said conductors and axially into abutting engagement with the resilient insert 11 carrying the contacts by a nut 41 screwing on to the shell 10 and acting through a ring 37 which presses on a sleeve 33 surrounding the grommet. The latter has a shoulder 60 engaged by sleeve 33 and in the embodiment shown in Fig. 2, the sleeve has upwardly-extending resilient prongs 36 which are bent inwardly to compress the grommet by a coned surface 38 in the interior of ring 37 as nut 41 is tightened. Fig. 4 shows a modification in which a rigid sleeve 52 replaces sleeve 33, a flange 53 thereof being turned inwardly to engage the grommet. Additional means for gripping the conductors is carried by nut 41 and comprises a resilient grommet 49 held between a pair of arcuate clamping bars 47, 48, Fig. I, which are drawn together to compress the grommet by bolts 45, 46, passing loosely through lugs 44 on the nut. Specification 648,675 also is referred to.
Patent GB-866679-A (GB)
Title: Process for the manufacture of high molecular polyethylene
IPC: C08F10/00
Filed: 1958-02-19
Abstract: Ethylene is polymerized in a low pressure polymerization process by introducing into a reaction vessel containing in an inert solvent a compound of a metal of Group 4a, 5a or 6a, the metal in this compound having a valency lower than its maximum valency and before or at the start of the polymerization adding a mixture of a methyl-aluminium organic compound and a compound of a metal of Group 4a, 5a or 6a, the metal in this compound having the maximum valency.  The mixture of catalyst compounds may be added gradually or continuously to the polymerization batch, while the compound of a metal of lower valency may be prepared in a separate process by reduction of a compound containing the metal in its maximum valency.  The catalyst mixture may be of a methyl-aluminium compound and a compound of tetravalent titanium, e.g. dimethyl aluminium monochloride titanium tetrachloride.  The ethylene may be first introduced into a catalyst mixture of the methyl-aluminium compound, a tetravalent titanium compound and a trivalent titanium compound, and a catalyst mixture of a methyl-aluminium compound and a compound of tetravalent titanium added later.  Specifications 799,392, 799,823, 801,031, 828,201 and 828,692 are referred to.
Patent GB-349027-A (GB)
Title: Improved means for driving sound reproducing apparatus particularly when associated with picture projection apparatus
IPC: G11B17/00
Filed: 1930-02-19
Abstract: 349,027. Gramophones. MOON, H. H. and MOON, S. H., 10, Holloway Head, Birmingham. Feb. 19, 1930, No. 5479. [Class 40 (ii).] Driving.-A gramophone turntable is driven by the driving spindle through springs whose outer extremities are slidably mounted in members associated with the turntable. The turntable a is provided with two projections b which are bifurcated at c to receive the extremities of two blade springs d secured one on each side of the driving spindle/. The spindle f bears within a flange h, rigid with the turntable a, on a ball bearing. The blade springs d may be reinforced by additional springs i, i, Fig. 2.