baber/WOPTO huggingface dataset:
Patent GB-324931-A (GB)
Title: Multiple wings for aircraft
IPC: B64C3/54
Filed: 1928-11-06
Abstract: 324,931. Franklin, H. W. Nov. 6, 1928. Planes, arrangement of; controlling.-Two or more planes of an aircraft are disposed one below the other at small intervals comparable with the thickness of the planes, each lower plane having its leading edge behind and its angle of incidence greater than that of the plane above it; the planes are arranged so that they can be brought up against one another to form a single plane having an area little greater than that of the component planes. In the arrangement shown in Fig. 1, plane a is fixed and planes b and c may be closed up thereto, Fig, 2, by a screw member k having swivelling nuts l, m and a trunnion member n Alternatively all the planes may be linked together so as to be capable of relative movement, about a pivot at the end of fixed interplane struts, controlled by an adjustable rear strut operated by the pilot through screw-and-nut mechanism.
Patent GB-803671-A (GB)
Title: Improvements in or relating to polarizing microscopes
Inventor: TAYLOR EDWARD WILFRED
IPC: G02B21/00
Filed: 1955-11-11
Abstract: 803,671. Microscopes. COOKE TROUGHTON & SIMMS ,  Ltd. Nov. 12, 1956 [Nov. 11, 1955], No. 32344/55. Class 97(1) . In a polarizing microscope, an analyser is wholly housed within the lower end of the body tube or body tube extension in the operative and in the inoperative position. Preferably, a holder 57 or 82 for the polarizing element 58 is pivotally mounted on pin 37 or 83, respectively, about an axis perpendicular to the axis of the tube. As shown, element 58 is mounted in cup 24 rotatable in member 4 by ring 44 or 86 coupled therewith by a rod extending from pin 37 and carrying a control knob or by spigot 94 respectively. In Fig. 3, element 58 is carried on two arms one, 64, engaging toggle spring 67 so that the element is spring loaded into both its positions, the element being located in the operative position (shown in broken line) by adjustable stop member 69. Ring 44 carries a scale ring 52 co-operating with vernier 55. A U-shaped clamping member 76, 77 is actuated by knob 80. The shaft of the control knob rides in a circumferential slot in the stationary member 4. In Fig. 6, spigot 94 also rides in a slot in member 4 and ring 86 carries a vernier which cooperates with a scale on tube 1. Holder 82 is spring loaded into both its positions by leaf spring 92, the inoperative position being shown in broken line. Slot 17 is provided for a compensator.
Patent GB-359219-A (GB)
Title: Improvements in devices for stopping leakages in pipes or tubes
IPC: F16L55/172
Filed: 1930-10-29
Abstract: 359,219. Stopping leakages in pipes. BAINES, J. R., Oaklea, Allport Lane, Bromborough, Cheshire. Oct. 29, 1930, No. 32439. [Class 99 (ii).] In a device for stopping leakages in pipes of the kind comprising a rubber pad 2 which is fitted with a back-plate 1 and is compressed into contact with the pipe by a pair of yokes 3, 3, the ends of the pad are provided with beadings 7 and the ends of the backplate are preferably formed with corre. sponding recesses 8 so as to enable leaks in the angled recess of a branched joint, for example, to be stopped. The pad may be hollow, Fig. 6, and provided with a slot or aperture 3b which is disposed over the fracture 12. Specification 134,426, [Class 99 (ii), Pipes, tubes, &c.], is referred to.
Patent GB-387071-A (GB)
Title: Improvements in or relating to nets such as hair nets and veils, and the manufacturethereof
IPC: A45D8/40
Filed: 1931-11-24
Abstract: 387,071. Veils. SHAW, R., Peveril Street Works, Nottingham. Nov. 24, 1931, No. 32474. [Class 141.] Hair nets &c. are produced on a lace machine in lengths 10 joined by comparatively narrow bands of fine net, clothing, &c. 11. Elastic threads 12 are inserted along the edges and across the whole band or part of it, during manufacture. Another thread 13 may be woven in the part 11 to lie loosely over the part 10.
Patent GB-204967-A (GB)
Title: Improvements in or relating to machines for wrapping confectionery
IPC: B65B51/00
Filed: 1922-11-28
Abstract: 204,967. Wilkinson, G. H. Nov. 28, 1922. Packeting by wrapping-up.-Relates to machines for forming packets with twisted ends. The grippers which effect the twiisting are heated so as to melt the wax in the wrapper so that on cooling a more secure wrapping is effected.
Patent GB-906177-A (GB)
Title: Manifold for producing continuously a sheet of gaseous medium for cooling extruded plastic tubing
IPC: B29C48/10
Filed: 1960-09-21
Abstract: <PICT:0906177/IV(a)/1> An annular manifold 14 for discharging cooling air on to a plastic tubular film T extruded from a die 12 includes a pocket 70 in the p  flow passage through the manifold for causing such turbulence in the air flow that the discharge of air through the peripheral outlet orifice 68 is of substantially uniform volumetric flow rate throughout the length of the orifice.  The manifold 14 is divided by a partition 46 into two compartments 50, 52, and the pocket 70 is formed above an annular baffle 78 extending partially across the upper end of the compartment 50.  A conduit 98 for the circulation of a cooling medium is embedded in the partition 46. Three air inlets 42 (one only shown) are uniformly spaced around the outer periphery of the manifold 14.  The tubular film T is drawn from the die 12 by squeeze rolls (not shown) and is inflated to a desired diameter by air under pressure admitted thereto through a port in the die 12.
Patent GB-360653-A (GB)
Title: Differential gear
IPC: B60K17/16
Filed: 1930-10-30
Abstract: 360,653. Motor vehicle driving gear. GUILMETTE, J., St. Felicien, Quebec, Canada. Oct. 30, 1930, No. 32630. [Class 79 (ii).] - A differential gear with twin friction couplings which yield as necessary is adapted to be locked positively at will by sliding toothed elements, as when a vehicle is running over ice or rough ground. A crown wheel 12, Fig. 1, driven from the propeller shaft 4 has its middle portion 11 formed as a disc with a friction surface on each side. Splined on the end of each vehicle axle part 6 is a friction disc 9 which is thrust against the middle disc 11 by a ring member 13. Headed bolts 15 pass through the rings 13 and the wheel 12 and carry springs 16 which produce constant frictional engagement in both couplings. In rounding a bend, relative turning of the axles 6 takes place by slip. Each disc 9 has a sleeve 10 slidably splined on which is a clutch member 18 with teeth adapted to engage teeth inside the adjacent ring 13. The clutch members 18 are connected by linkages 21, 24 to two hand-levers 25, Fig. 10, side by side within reach of the driver with handles 26 slightly spaced apart so that either or both can be grasped with one hand to lock either or both of the friction couplings as desired by engagement of members 18, 13. The crown wheel 12, Fig. 1, is driven from a pinion 5 on the reduced end 36 of the shaft 4 and is supported by a conical roller 27 adjustable in the gear housing 1. The reduced end part 36 of the propeller shaft 4 is supported in a roller bearing 37 housed in a block 38 slidable in a cavity 39, Fig. 6, in the torque tube 2, towards and from the wheel 12. The block 38 is held with the pinion 5 in proper mesh with the wheel 12 by a wedge 40 secured by a set-screw 41. To disengage the drive, the wedge 40 is withdrawn and block 38 moved away from wheel 12 by a set-screw 42.
Patent GB-397831-A (GB)
Title: Improvements relating to ferritic chromium steel alloys and articles manufactured therefrom
Filed: 1931-11-26
Abstract: Ferritic chromium steels or articles made therefrom are improved by heating the steels &c. to 400-1000 DEG  C. and cooling quickly.  The steels may be rolled or forged during cooling.  A steel containing 34,5 per cent of chromium and 0,26 of carbon is referred to.  The steels may also contain other elements such as molybdenum, nickel, cobalt, tungsten, silicon, manganese, aluminium, titanium, and vanadium.
Patent GB-521219-A (GB)
Title: Improvements relating to resilient wheel mountings for undercarriages of aircraft
IPC: B64C25/60
Filed: 1938-11-12
Abstract: 521,219. Aircraft-landing gear. DOWTY, G. H. Nov. 12, 1938, No. 32963. [Class 4] In aircraft alighting gear comprising a wheel mounting unit provided with a lever carrying a wheel spindle and adapted to be restrained in its movement by shockabsorbing means, a second lever is detachably connected to the spindle on the other side of the wheel bearings to the first lever, the second lever being pivotally attachable to the undercarriage structure coaxially with the first lever and not being directly associated with shock-absorber means. As shown, a wheel 7 is carried by a spindle 4 integral with the lever 2 which is pivoted to one of a pair of parallel undercarriage struts 1, 1A. The lever incorporates a shock-absorber including a check valve similar to that described in Specification 517,380 and 520,995. The spindle includes a piston 5 which moves against compressed air, which is introduced through a tube 10 which passes through an adjustable plug 9 which is a pressure fit in the spindle. The plug is held in place by a fitting 13 connected to a lever 15 similar in outline to the lever 2 on the other strut. The lever may be movable on or rigid with the fitting. Specification 517,373 also is referred to.
Patent GB-865903-A (GB)
Title: Improvements in transistor circuits
IPC: H03K23/00
Filed: 1958-10-16
Abstract: 865,903. Transistor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 16, 1958 [Oct. 18, 1957(2)], No. 33016/58. Class 40(6) A transistor circuit is connected to a gas discharge tube and to a biasing means which supplies a variable voltage between two values one of which causes the gas tube to fire when the transistor is in a predetermined conductivity state. Fig. 2 shows a junction transistor having its emitter connection grounded in which a gas discharge tube 3 is connected to the collector to which is applied an alternating voltage potential in addition to the normal D.C. voltage -V. It is demonstrated that when the transistor is in its OFF or low conductivity state the gas tube is switched on provided that the voltage applied across it during this condition exceeds the firing voltage of the tube and is switched off during the negative going portions of the alternating currents cycle but the average luminosity is sufficient so that the indicator gives a constant glow. When the transistor is ON in its high conductivity state the indicator gas tube 3 is permanently switched OFF. In a modification (Fig. 3, not shown) a large number of gas tube indicators may be used with a corresponding number of transistor circuits. Fig. 6 shows a bi-stable transistor trigger circuit comprising reciprocally coupled transistors 1, 2 each having grounded emitters. The gas tube indicator F is associated with an alternating current supply via transformer 3, 4 and the voltage swing at the collector electrode is limited by biased diodes connected to a D.C. sources -Vd, the circuit is triggered by negative pulses applied to the base of transistor 1 at terminal D. It is shown that when transistor 1 is in the OFF state the discharge tube indicator F is turned on provided that there is a given relationship between the D.C. voltages; when transistor 1 is ON the gas tube indicator F is switched OFF. The transistor supply voltage may be decreased by using the circuit shown in Fig. 7 the light indicator gas tube being connected between the points A, B. The use of a floating voltage source as shown in Fig. 7 may be avoided in the modification shown in Fig. 8 in which when the transistor 1 is OFF point A is at potential -Vd point C at earth, and point B at kE where k represents the relationship R1 divided by R1+R2 and the gas indicator tube will thus fire. When transistor 1 is ON the gas tube is kept in the OFF condition.
Patent GB-1073555-A (GB)
Title: Texture-free polycrystalline silicon and processes for the manufacture thereof
IPC: C23C16/32
Filed: 1965-08-03
Abstract: A layer of silicon having fine particles of silicon carbide and carbon between the silicon crystallites is deposited on a support of aluminium oxide, porcelain, quartz, molybdenum, tantalum silicon or silicon carbide by decomposition of the gaseous phase. The reaction gas which flows over the heated substrate may be a mixture of hydrogen or an inert gas with CH3SiHCl2 or with SiHCl3 and CH2Cl2, SiCl4 and CHCl3 or SiBr4 and CHBr3.  The decomposition temperature is maintained between 1000 DEG  and 1300 DEG C.  It is stated that these temperatures are limits below and above which pure silicon and silicon carbide are formed, respectively.  Doping substances may be added by using e.g. PCl3.ALSO:A layer of silicon having fine particles of silicon carbide and carbon between the silicon crystallites is deposited on a support silicon or silicon carbide by decomposition of the gaseous phase. The reaction gas which flows over the heated substrate may be a mixture of hydrogen or an inert gas with CH3SiHCl2 or with SiHCl3 and CH2Cl2, SiCl4 and CHCl3 or SiBr4 and CHBr3.  The decomposition temperature is maintained between 1000 DEG  and 1300 DEG  C.  It is stated that these temperatures are limits below and above which pure silicon and silicon carbide are formed respectively.  Doping substances may be added by using, e.g. PCl3.
Patent GB-1287169-A (GB)
Title: Tambourine
Inventor: KOISHIKAWA YOSHIYUKI
IPC: G10D13/02
Filed: 1970-07-08
Abstract: 1287169 Tambourines Y KOISHIKAWA 8 July 1970 [4 Dec 1969 9 June 1970] 33229/70 Heading G5J A tambourine comprises a pair of frames A, A<SP>1</SP>, a sheet B attached between them, and an annular tensioning piece C, the frames A, A<SP>1</SP> being made of a synthetic resin and having step portions 4 to locate the tensioning piece C grip portions 5 and bell mounting portions 6, one of the frames, at least, having roughening grooves a. The frames may be secured together by clamping members passing through bosses 9. The sheet B has holes around its periphery through which projections 2 on one frame may pass, to engage recesses 3 in the other, thus holding the sheet B between the frames. The annular tensioning piece C consists of a main annular portion 11 and a ridge 12 around its innerperiphery and fitsbetween the step portions 4. The ridge 12 presses against the sheet B to tension it. Reference has been directed by the Comptroller to Specifications 1,258,362 and 1,142,365.
Patent GB-1451270-A (GB)
Title: Polymer dispersions
IPC: C08L51/00
Filed: 1974-07-25
Abstract: 1451270 Polymer mixture dispersions TORAY INDUSTRIES Inc 25 July 1974 [28 July 1973] 33254/74 Heading C3P  A dispersion consists of an organic liquid medium containing a block or graft copolymer dispersion stabilizer and dispersed particles of a mixture of a copolymer of at least two different monomers of the vinyl series and an alkylated melamine-formaldehyde resin. The dispersion is made by copolymerizing in an organic liquid the at least two different monomers in the presence of the block or graft copolymer dispersion stabilizer, optionally in the presence of the aminoplast, adding the aminoplast if not already present, and then altering the solubility parameter of the organic liquid by at least 0À5 in the direction of increasing the difference between the solubility parameters of the organic liquid and of the copolymer of the vinyl series. This alteration can be done either by adding a suitable organic liquid or by distilling off a suitably chosen organic liquid from an initially chosen mixture of liquids. The composition may contain pigments.
Patent GB-405088-A (GB)
Title: Improvements in or relating to travelling excavating machines
IPC: E02F5/10
Filed: 1932-11-24
Abstract: 405,088. Excavators. KEARNEY, A. R., 136, Kenley Road, Merton Park, FARROW, H., and HOWKINS, F., Bank Buildings, Russell Parade, Golders Green Road, both in London. Nov. 24, 1932, No. 33276. [Class 68 (i).] An endless-chain excavator with side shields enclosing the idle run of cutters or buckets has the cutters &c. so formed or arranged that the active run excavates a trench wider than the distance between the outer faces of the shields while the cutters &c. in the idle run recede from the trench sides so as to pass between the shields. In Fig. 8, extreme cutters 9, 10, are provided on buckets 11, 12, so that one set of buckets, preferably alternate buckets, cuts further over to one side than the other set, the latter set cutting further to the other side ; on reaching the idle run, slack in the chain permits the buckets to move inwards to pass between the shields. The teeth 9, 10, may be placed on the chain. In Fig. 10, expanding cutters 13 pivot about pins 14 on members 15 pivoted on pins 20 on the chain 16, a tail piece 18 limiting the expansion and a cut-away part 19 permitting rocking on passing round the sprockets. Similar teeth may be arranged on the buckets. In Fig. 11, the staggered lateral teeth 23, 24, are carried by cutter bars 21 between the buckets, while in Fig. 12, a single chain 27 carries cutter-scoops 25 on pins 26, the scoops having limited play allowing them to swing laterally. Specifications 405,045 and 405,087 are referred to.
Patent GB-821866-A (GB)
Title: Conveyors having rollers magnetised by permanent magnets
IPC: B65G39/00
Filed: 1956-10-31
Abstract: 821,866. Magnets. SPODIG, H. Oct. 31, 1956 [Nov. 3, 1955], No. 33282/56. Class 35. In a permanently magnetized roller conveyer having at least two oppositely polarized rollers 15, 16 disposed side by side on parallel axes and combined with permanent magnets 7, 8, 17, 18 and magnetic conductors to form a magnetic system, the permanent magnets are fitted into the rollers in such polar relationship and are so magnetically interconnected that each roller is polarized by a pair of like poles of the system. In the embodiment shown, each roller has two magnets, the outer poles of which are magnetically interconnected by roller axles 13, 14 and mounting angles 5, 6, both of ferromagnetic material and which poles are spaced from their corresponding rollers by air gaps formed by cylindrically or frusto-conically counterboring the magnet accommodating recesses 9, 10 in the roller ends. Non-magnetic flanges 28 and screws secure the axles to the rollers. In other embodiments alternate rollers only have the two magnets, or each roller has only one magnet and the rollers alternatively are mounted in a channel section girder, and may be profiled.
Patent GB-1094048-A (GB)
Title: Weighing systems
Inventor: SYKES CHARLES HENRY
IPC: G01G19/14
Filed: 1965-08-04
Abstract: 1,094,048. Weighing. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Aug. 3, 1966 [Aug. 4, 1965], No.33301/65. Heading G4H. A weighing system includes a body movable in a path leading to a station, an inductive coil movable with the body and switch means connected in a circuit to the coil operable in dependence upon the weight of the body to vary the electromagnetic inductive condition of the coil and means at the station responsive to the said condition of the coil when the coil is in the proximity thereof to produce an indication of said weight. The body may be a skip in a mine shaft (the path), the station being at the shaft top, and the weighing being to determine if the skip has been substantially fully unloaded. The coil selectively alters the coupling between two further coils at the station. As a modification there may be a plurality of switch means inserting respective capacitors in the circuit of the first coil to vary the tuned frequency thereof to indicate the weight, or there may be a plurality of first coils, with respective switch means.
Patent GB-784085-A (GB)
Title: Improvements relating to organopolysiloxanes
IPC: C08G77/00
Filed: 1954-11-17
Abstract: Organopolysiloxanes convertible to the solid elastic state, having a viscosity of at least 500,000 cs. at 25 DEG  C. and which have been made by polymerizing a low molecular weight organopolysiloxane with a water-soluble polymerizing agent, are freed from the polymerizing agent by subjecting the siloxane to a kneading action while simultaneously intimately dispersing water therethrough, and thereafter removing the treating water containing the agent from the siloxane.  The convertible siloxanes used are well known (see e.g. Specifications 594,481, [Group IV], 640,067 and 618,453) and may contain hydrocarbon or halogenated hydrocarbon radicals, the polymerizing catalysts being, e.g., ferric chloride hexahydrate, phenylphosphorylchloride and sodium and potassium hydroxides.  In practice, the siloxane is placed in a mixer, such as a dough mixer having sigma-shaped blades rotating inwardly at differential speeds and having jacketed sides for heating purposes, and water is added thereto in amount such that all portions of the siloxane are below the surface of the water at some time in the processing.  The water is removed and fresh water introduced if necessary, and after the last water treatment the siloxane is freed of water by kneading and introducing hot air or by applying vacuum and heat.  Generally for each part of siloxane there should be used from 0.5 part to 3 parts of water, which may be slightly acid or alkaline and may be cool (at room temperature), hot (e.g. 75 DEG  to 100 DEG  C.) or superheated (110 DEG  to 125 DEG  C.).  Optimum results are obtained by using a number of water treatments for each charge, the cycle time ranging from 15 minutes to 2 hours.  Examples are given in which the siloxane used was made by polymerizing at 150 DEG  C. for 4 hours octamethylcyclotetrasiloxane with KOH.  In Example (4) the treatment for removal of the catalyst was combined with the step for removal of volatiles according to the process of Specification 773,325.  The treated siloxanes can be compounded with fillers, e.g. silica, titania, calcium silicate, ferric oxide, chromic oxide, cadmium sulphide, asbestos, glass fibres, calcium carbonate, carbon black and lithopone, the customary curing catalysts, and with or without compression set additives, e.g. mercury and salts thereof and 2,5-ditertiarybutylquinone, and cured in known manner. Specifications 594,508, [Group IV], and 618,452 also are referred to.
Patent GB-1206759-A (GB)
Title: Semiconductor devices
Inventor: PEACOCK ROBERT DAVID
IPC: H01L23/29
Filed: 1967-07-20
Abstract: 1,206,759. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 18 July, 1968 [20 July, 1967], No. 33378/67. Heading H1K. A semiconductor device comprises a die, with electrodes at only one face, attached by a layer of adhesive plastics material at its electrodeless face to a support. Die and support are then encapsulated in plastics to have only external electrodes exposed. As shown in Fig. 1 a planar integrated circuit silicon die with an aluminium interconnection pattern and bonding pads is disposed on the mounting plate 3 of a gold plated iron-nickel-cobalt alloy lead frame 1 on a blob of a commercial impact polymerizable adhesive containing methyl-2-cyanoacrylate and pressed to set the layer to a layer 25Á thick. Aternative adhesives are silicone varnish and silver-loaded epoxide resin but these have to be heat cured at 200‹ C. After connecting the lead pattern to the bonding pads by aluminium wires 5, the assembly is precoated in a commercial resin known as DC644 and a final encapsulation of filled epoxide resin applied by transfer moulding. Diodes, transistors, and thyristors may be potted in like manner.