baber/WOPTO huggingface dataset:
Patent GB-378209-A (GB)
Title: Improvements in or relating to plasters and the like
IPC: C04B28/14
Filed: 1931-08-18
Abstract: A cementitious mixture, suitable for use as a plaster or in a mortar, consists of a fine dry mixture of a dry calcium hydroxide or calcium magnesium hydroxide and a dry calcium carbonate such as chalk or limestone, or dolomite in the proportions of 15-30 per cent hydrate to 75-85 per cent carbonate.  The fineness of the p  carbonate is such that all passes a 50 mesh sieve but not a 200 mesh sieve.  The mixture may be made by mixing the two dry materials or by admixing the oxide and carbonate and slaking with just sufficient water to produce the hydroxide, the heat of hydration rendering the carbonate dry.  5 to 15 per cent of plaster of Paris may be added to the mixture containing the hydrate or 5 per cent of gypsum to the mixture containing the oxide, which the heat of hydration converts to plaster of Paris. The mixture may be used neat or with an aggregate such as sand.
Patent GB-303536-A (GB)
Title: Improvements in devices for tyre inflation and like purposes
IPC: B60S5/04
Filed: 1927-09-05
Abstract: 303,536. Creser, A. A. T., and Baker, G. B. Sept. 5, 1927. Couplings, disconnectible; stuffing-box joints; with valves.-A slip-on tyre valve connector of the kind shown in Fig. 6, is provided with a valve opening pin 47 which is operated by a cam 50. In a modification, Fig. 7, the cam also serves to compress the rubber packing ring 43.
Patent GB-1474103-A (GB)
Title: Thermoplastic hot melt adhesive polyamide composition for  bonding metals
IPC: C08L77/00
Filed: 1974-05-24
Abstract: 1474103 Metal laminates DAICEL Ltd 24 May 1974 [30 May 1973] 23255/74 Heading B5N [Also in Division C3] Metals are laminated using a hot melt adhesive blend of 60 to 90 wt. per cent nylon 12/6/66 and 10 to 40% ethylene/vinyl acetate copolymer containing 1 to 25 wt. per cent vinyl acetate (see Division C3). The adhesive may be applied as an extruded film or web and lamination effected at 5 to 10 kg./cm.<SP>2</SP> and 120‹ to 180‹ C. for ¢ to 30 minutes. In specific examples an 80 Á film of adhesive is used and adhesion effected at 5 kg./cm.<SP>2</SP> and 180‹ C. for 30 seconds, between sheets of the following metals, both untreated and subjected to a variety of surface treatments; mild steel, stainless steel, tin-free steel, aluminium, galvanized sheet iron and copper.
Patent GB-1095284-A (GB)
Title: Improvements in or relating to methods of and apparatus for toughening sheets of glass
IPC: C03B27/052
Filed: 1963-06-11
Abstract: Glass sheets are toughened by exposing the heated glass sheet to a gaseous chilling medium and interposing between at least a part of the central area of the glass and the gaseous medium a series of parallel members 4 of width small in comparison with the sheet width, e.g. angle bars which present their concave faces to the glass sheet. The bars 4 <PICT:1095284/C1/1> <PICT:1095284/C1/2> are connected by members 5.  The toughened sheet thus formed has lesser toughened interrupted vertical strips breaking to a relatively large particle size separated by narrow bands of more highly toughened glass breaking to a relatively small particle size (Fig. 4), thus providing a vision zone in the central area of the sheet after fracture.  To reduce the screen effect of the bars 4 notches may be cut in their edges at regular intervals along their length. This causes partial intersection of the strips of less toughened glass by the more highly toughened glass.  To further aid in the screen effect a wire gauze may be attached to the series of bars 4.  The concave faces of the angle bars may be coated with alternate bands of heat-reflecting material and heat-absorbent material.
Patent GB-864353-A (GB)
Title: Production of cyclohexanone
Filed: 1957-07-23
Abstract: In a process for the production of cyclohexanone by heating cyclohexanol in the presence of a dehydrogenation-catalyst, the effluent vapours, which comprise a mixture of cyclohexanone and cyclohexanol, are passed into a fractionating column and water is introduced into the column, whereby the vapours withdrawn from an upper section of the column are enriched in cyclohexanone with respect to the vapours which enter the column.  In an example, cyclohexanol is heated to boiling with 1,5% by weight of finely-divided nickel, the vapours are passed into a short, packed-column, and water is fed into the column.  During the distillation, cyclohexanol is continuously added to the boiling mixture.  The water is fed into the column at such a rate that the temperature of the boiling mixture does not drop, i.e. so that the reflux returning to the boiling mixture consists essentially of cyclohexanol.  A vapour mixture containing 44% cyclohexanone, 43% cyclohexanol, and 13% water is withdrawn from the upper part of the column at a temperature of 97 DEG C.ALSO:Rectification of a mixture containing cyclohexanone and cyclohexanol is effected by passing the vapour-mixture into a fractionating column, introducing water into the column, withdrawing a vapour-mixture comprising cyclohexanone, cyclohexanol and water, enriched in cyclohexanone with respect to the feed mixture, from a point in the column above the point of introduction of the vapour-mixture, and withdrawing substantially pure cyclohexanol from the foot of the column.  The process is particularly applicable in the preparation of cyclohexanone by the catalytic dehydrogenation of cyclohexanol.  In an example, cyclohexanol is heated to boiling with 1.5% by weight of finely-divided nickel, the vapours are passed into a short packed column, and water is fed into the column.  During the distillation, cyclohexanol is continuously added to the boiling mixture.  The water is fed into the column at such a rate that the temperature of the boiling mixture does not drop, i.e. so that the reflux returning to the boiling mixture consists essentially of cyclohexanol.  A vapour mixture containing 44% cyclohexanone, 43% cyclohexanol, and 13% water is withdrawn from the upper part of the column at a temperature of 97 DEG C.
Patent GB-501067-A (GB)
Title: An improvement in or relating to pile wires for looms
IPC: D03D39/24
Filed: 1937-08-25
Abstract: 501,067. Loom pile wires. SWIFT, A., and ALLSOPP, C. Aug. 25, 1937, No. 23271. [Class 142 (ii)] A pile wire has a spoon end a<1> with a hole e through it, the recess b for the blade being milled out of the stem and through the part a<3> into the hole e. The blade is entered through the hole c and when in position abuts against a stop d, and the end of the hole e. The blade can be flexed for withdrawal by a tool passed through a hole f in the blade.
Patent GB-227487-A (GB)
Title: Improvements in and relating to electric arc devices
IPC: H01J61/54
Filed: 1923-09-18
Abstract: 227,487. British Thomson-Houston Co., Ltd., (General Electric Co.). Sept. 18, 1923. Arc lamps; low-pressure metallic-vapour apparatus.-An arc device comprises a sealed bulb 1 containing electrodes 4, 5 of conductive refractory material such as tungsten adapted to operate at incandescence and permanently separated by a gap; the arc is started by temporarily bridging the gap by a stream of conductive fluid such as mercury. The bulb 1 is provided with a cap 7 to which are secured supporting arms 8, 9 mounted in bearings at 10, 11. On tilting the bulb, mercury flows from the bottom of the bulb into a cup 12 from which on return of the bulb to the vertical position, the mercury escapes by a tube 13 terminating in two tubes 14, 15 of heat-resisting glass or quartz, forming two streams which impinge on the electrodes. In modifications, the cup 12 is replaced by an external or internal tubular reservoir connected to the bulb at the top for filling and at the bottom by a small tube or tubes from which mercury escapes in one or in two upward streams. The mercury in the reservoir may be electrically connected to the positive electrode. In another modification the mercury reservoir is constituted by a hollow support for one of the electrodes, the mercury stream passing through a duct in the electrode to the other electrode. The bulb mav contain argon, nitrogen, or other inert gas at a pressure from a few millimetres to atmospheric.
Patent GB-429254-A (GB)
Title: Improvements in and relating to sound film projectors
IPC: G03B31/02
Filed: 1933-08-22
Abstract: 429,254. Toothed gears. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. Aug. 22, 1933, No. 23380. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 1, 1934]. [Class 80 (i)] [See also Groups XXXVIII and XX] In a picture-projector combined with soundreproducing apparatus, vibrations which would interfere with the sound reproduction are suppressed by constructing the gear wheels or other moving parts of the projector of a material consisting of " pressed long-fibrous vegetable fibre such as cotton " without any binding agent. Parts of " the intermittent movement device (single tooth wheel, intermittent disc) and the feed roller " may be made of this material.
Patent GB-583732-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/40
Filed: 1944-11-23
Abstract: 583,732. Metal-to-glass seals. CAIRNS, J. E. 1., and DOCHERTY, C. D. Nov. 23, 1944, No. 23385. [Class 36] [Also in Groups XXII and XXIII] A chuck for holding glass tubing provided with internal protrusions when sealing such tubing to copper discs, comprises a support 1 having bearing members 3, 4 spaced around it and projecting therefrom and corresponding in number to the number of internal protrusions P in the tubing T. Resilient means such as leaf springs are positioned between the bearing members for engagement by the protrusions, or, as shown, the resilient means may comprise a thin phosphor-bronze sleeve 10 pinned to the bearing members. Specifications 507,840, 575,027, [both in Group XL], and 582,858 are referred to.
Patent GB-261505-A (GB)
Title: Improvements in or relating to hinges
IPC: A47C1/03
Filed: 1925-09-19
Abstract: 261,505. Baker, H. C. Sept. 19, 1925. Pivoting - adjustments; barrel hinges.-In hinges with a pawl on one plate member for engagement with one or more projections, grooves or slots on the other hinge-plate member, means are pro.. vided for operating simultaneously a plurality of the pawl members. The pawls 11 of a pair of hinges are mounted on a rod 9 of square cross-section so that the pawls move together and engage the teeth 12 op the plates 1 of each of the hinges. A bell-crank lever 15, 16 with a handle 14 may be provided to move the pawl member 11 against the action of a coil spring 13. A stop member 18 may be provided. In a modified construction, the pawls are formed as a continuation of the rod 9, a pin working in a slotted stay to limit the opening movement of the hinge plates. The hinges may be used for adjustably supporting the backs of chairs, drop ends of settees, and other hinged members.
Patent GB-813734-A (GB)
Title: Improvements in or relating to electric circuit breakers
IPC: H01H9/38
Filed: 1957-07-24
Abstract: 813,734. Contact members for switches, arc-rupturing in switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 24, 1957 [July 31, 1956], No. 23415/57. Class 38 (5). A circuit-breaker with main, intermediate, and arcing, contacts which separate in that order, has a fixed contact base 41 with three supporting projections 45, 47, 49 carrying the resiliently-mounted fixed contacts. Two plates 39 carry main fixed contacts 57 and one pivoted on a spindle 51 and retained by a spindle 53 both having springs 63 urging the plates 53 against the projections 45, 49. L-shaped members 61 carrying main fixed contacts 59 are mounted in the same manner on spindles 51, 53 and coaxial springs 67 urge spacers 69 against the members 61 to ensure good contact with the inner projection 47, silver or similar good conducting material washers 71 and plating 73 on the projection being provided to improve the conductivity. The plates 39 are each biased toward the moving contacts by a spring 79 with one end on a pin 83 and the other in a recess 81. The members 61 are biased by coaxial springs 85 with one end in a recess 87 and the other on a pressure-equalizing member 91. The intermediate fixed contact 31 and arcing contact 33 are mounted on a member 35 having pivot pins 97 movable in slots 99 in the plates 39 and stops 101 in apertures 103 thereof. Coaxial springs 105 and a spring 107 urges the member 35 away from the base 41 and a flexible conductor 113 electrically connects these members. When the arm 15 is operated to open the contacts the fixed contacts move with the moving contacts until the spindle 53 engages the sides of the holes 75, 77 in the projections 45, 47, 49 (Fig. 4) and then the main contacts 23, 57, 59 separate. The other contacts remain closed until the pins 97 engage the ends of the slots 99 (Fig. 1) and then the intermediate contacts 25, 31 separate leaving the arcing contacts 27, 33 closed until the stops 101 engage the ends of the holes 103. An arc-shoot 127 is provided and an insulator 129 on the bar 15 prevents Bash-over to the fixed contacts on switching surges.
Patent GB-653997-A (GB)
Title: Improvements in or relating to high speed clutches and/or brakes
IPC: F16D63/00
Filed: 1948-09-06
Abstract: 653,997. Electromagnetic brakes. WILLIAMS & SONS, Ltd., S., and DURSTON, D. S. Sept. 6, 1948, No. 23440. [Class 103 (i)] [Also in Groups XXIV and XXXV] An electromagnetically - operated friction clutch-brake comprises an armature 5 drivingly connected to an output shaft 6 by a flexible collar 7 so as to be movable axially to effect clutching or braking under the combined magnetic fields of a stationary permanent magnet 8, a permanent magnet 2 fast with an input shaft 1 and an operating coil or coils 15, the passage of a current through which moves the armature 5 in one direction or the other. As shown, the permanent magnetic fluxes pass from pole shoes 3, 9 of cylindrical magnets 2, 8 radially outward through a disc armature 5 to return paths comprising rectangular axiallylaminated or low eddy loss alloy blocks 4, 10 and end-plates 25, 25<SP>1</SP>. The fluxes are balanced by providing adjustable alternative return paths consisting of iron strips 17. Operating coils 15 have cores 13 mounted on laminated annuli of which one, 12, is fast with the plate 25 and the other, 11, is separated from the plate 251 only by a small air gap. The coil fluxes therefore pass through the parts 11, 4, 5, 10 and 12 and are superimposed on the fluxes of the permanent magnets. Clutching and braking contact is through surfaces on the armature 5 and blocks 4 and 10 respectively, plated with non-magnetic material or arranged in some alternative manner to ensure that non-magnetic gaps remain therebetween. Upon coil deenergization, the armature 5 remains in contact with the block to which it has previously been attracted. The air gaps between the armature 5 and the members 3, 4, 9 and 10 are adjusted by shims such as 19, 20. Each coil 15 may have a continuous winding, when its polarity must be reversed to effect alternate clutching and braking, or a coil with a centre tap winding may be used. In Fig. 4 (not shown), the members 11, 12 are rectangular plates bored to coact with cylindrical members 4, 10. As described, the clutch-brake is for use with integrator and recording mechanism for weighing-gear associated with a crane.
Patent GB-318242-A (GB)
Title: Apparatus for manufacturing candles from a drawn rod
IPC: C11C5/02
Filed: 1929-07-30
Abstract: 318,242. Grabec, J. Aug. 31, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Candles.-An apparatus for making candles from candle rod consists of (1) two dies adjustably connected and reciprocating between two clamping devices, (2) a cutting mechanism, and (3) a device for pointing the candle ends. In operation the candle rod, which may be drawn by the apparatus described in Specification 316,272, after passing through a water bath is fed through dies 40, 41, Fig. 3, connected by a distance bolt 47 and sliding along members 38, 39, and through the clamping devices 85, 86 which grip the rod while it is cut by a knife operating in the die 41. The clamping devices are released and the dies 40, 41 previously at the extreme left, now, by means of the crank mechanism 26 attached to the frame 51 and rod 47, carry the candle rod to the opened spring operate knives in mechanism 103, the projecting end of the rod passing therethrough. A heated plate 193 is, by intermediate mechanism, pressed against the cut surface of the rod in the gutter 181, and simultaneously the knives 103 cut off the candle length and, on their return, the gutter 181 is tipped to allow the candle to roll down the slope 147 to take up position 160, Fig. 16. With the operation of knives 103, the clamping devices grip the candle rod, the knife in the die 41 is released and the dies 40, 41 return, smoothing the clamped rod in their passage. One end of the candle 160, on rotation of the disc 122, Fig. 16, is pressed, by engaging tappets 150, into one of a series of matrices 136 made of lead, and heated by steam passing through concentric tubes 125, 126, to form a point on the candle. On further rotation of the disc 122, the tappets 150 are withdrawn and the free candle rolls down the slope 162 to a collecting vessel. The dies may be rotatably mounted and have spiral flutings to form spiral grooves in the candles. The distance between the clamping devices, and between the clamping devices and the knives in the die 41 and mechanism 103 at the time of cutting, must be multiples of the final candle length. A number of candle rods may be simultaneously treated by employing a plurality of clamping devices, dies, &c.
Patent GB-336036-A (GB)
Title: New or improved driving mechanism for combined kinematographic and sound reproducing apparatus
IPC: G03B31/00
Filed: 1929-07-31
Abstract: 336,036. Whitehead, A. J. July 31, 1929. Combined working of gramophones with kinematographs.-A transmission gear-box embodying clutch mechanism is arranged between a kinematograph and a sound reproducer, so that the machines may work individually or in combination. As shown, a kinematograph is driven by a pulley a and is connected to a shaft c in a gearbox f by a short shaft covered by a rubber sleeve. The shaft c carries a slidable clutch member n' and a fixed clutch member n, the latter being attached to a gear wheel j which gears with a wheel on a shaft m. The end m<1> of the shaft m affords a connection for a flexible shaft to be fixed to the ordinary gramophone gear drive. The clutch member n<1> is operated by crank means p, q, r, having a knurled knob o located outside the casing f, and the jaws of the clutch parts n, n', are undercut at n<2> so that thev do not inadvertently separate when in operative connection. The spindle m is supported by a bearing t and is prevented from creeping upwardly by a thrust screw u mounted in the cover f<1> of the casing f and bearing on the gear wheel carried by the spindle m.
Patent GB-650014-A (GB)
Title: Improvements in sifter-type containers for powders
IPC: A47G19/24
Filed: 1948-09-08
Abstract: 650,014. Powder distributers. UNIVERSAL METAL PRODUCTS, Ltd., and BIDDULPH, M. Sept. 8, 1948, No. 23605. [Class 18] A cap a of a siftertype container b for powders is provided with holes c which may be covered or uncovered by a spider f, the arms of such spider being of a resilient nature for effective sealing, and having reinforcing ribs as shown. The spider boss is located in a recess around a bore in the cap a and is a force-fit on a D-shaped portion e' of a shaft d of a control knob e. A slot g in the knob engages a peg h on the cap to limit the rotation of the knob and spider. The cap is secured to the cylindrical container b by screw threads i. The various parts may be moulded from a plastic material.
Patent GB-1468958-A (GB)
Title: Mould for article with circumferential undercut flanges
IPC: C03B11/06
Filed: 1974-05-28
Abstract: 1468958 Injection moulding CIBA-GEIGY AG 28 May 1974 [28 May 1973] 23662/74 Heading B5A An injection mould 50 for the production of an article having a number of circumferential undercut flanges, each of constant profile and all undercut in the same direction, e.g. an electric insulator, is composed of a number of elements which move relative to one another in rectilinear paths to open and close the mould; the direction 61 of such movement being so as not to cause the element to penetrate into or through the surface of the moulded article, e.g. at an angle # of less than 90 degrees to the longitudinal axis of the article. In Figs. 9 and 10 the mould comprises four identical elements 41 which abut at 43, each mounted on a plate 36 connected to the end of a tube 25 slidable in a sleeve 21. The tube is driven by fluid supplied to one or the other side of a piston 47. The angle # 1  to the horizontal of the sleeve, tube and piston is adjustable.
Patent GB-1146471-A (GB)
Title: Hopper
IPC: B65D88/66
Filed: 1966-05-26
Abstract: 1,146,471. Agitating a hopper. W. C. BURGESS. 26 May, 1966, No. 23714/66. Heading B8S. Articles in bulk are fed to a vibrating conveyer 8 from a hopper 24, the feed therefrom being controlled by sliding door 82 and the articles in the hopper are agitated by a door 32 which forms a side wall of the hopper, is pivoted at 38, is influenced resiliently at 64 towards the fixed sides of the hopper, and carries vibrator 74 to effect vibration. The vibration has a square wave power profile.
Patent GB-399006-A (GB)
Title: Improvements relating to scrubbing, impregnating, sizing, starching or other like machines for treating fabrics with liquids
IPC: D06B3/10
Filed: 1932-08-25
Abstract: An apparatus for scrubbing, sizing, impregnating or otherwise treating fabrics with liquids comprises a work support b which is slidably mounted by means of bars e in a block f at the top of a rod d which is raised and lowered by means of a pedal c.  Two parallel reciprocating bars n, n<1> are supported in the tank a above the work support and from each two <PICT:0399006/IV/1> <PICT:0399006/IV/2> brackets m, o depend.  Four parallel bars j, j<1> are supported by the brackets of each reciprocating bar, the individual bars j of one set alternating with those j<1> of the other set, and a wooden bar h having bristles i is secured beneath each of the eight bars j, j<1>. The bars n, n<1> are reciprocated out of phase from a crank w.  Each bar n, n<1> is provided with two brackets v passing through slots in guide boxes p and carrying rollers which engage tracks in the boxes. A pump y driven by the lever u<1> between the crank and the bar n<1> withdraws liquid from the bottom of the tank and delivers it over the brushes.
Patent GB-1460903-A (GB)
Title: Treatment of  vinyl chloride/vinyl acetate copolymers
IPC: C08K5/06
Filed: 1973-05-18
Abstract: 1460903 Treatment of vinyl chloride/vinyl acetate copolymers BP CHEMICALS INTERNATIONAL Ltd 6 May 1974 [18 May 1973] 23784/73 Heading C3P A vinyl chloride/vinyl acetate copolymer produced by copolymerization of the vinyl chloride and vinyl acetate in a polymerization reaction mixture is treated after completion of the polymerization but before it is isolated from the polymerization reaction mixture with 0À01- 0-6 parts by weight of an anti-static agent per 100 parts by weight of the copolymer. The copolymer preferably contains not more than 20% by weight vinyl acetate, more preferably 5-15%. The copolymer may be prepared by a suspension polymerization process and the anti-static agent is preferably added as an aqueous dispersion. The preferred anti-static agent is a C 12-15  synthetic primary alcohol/ ethylene oxide condensate. The resulting copolymer may then be used for making gramophone records.