baber/WOPTO huggingface dataset:
Patent GB-1116088-A (GB)
Title: Photosensitive devices and methods of making same
IPC: H01L31/068
Filed: 1965-06-24
Abstract: 1,116,088. Photoelectric devices. TEXAS INSTRUMENTS Inc. 24 June, 1965 [26 June 1964], No. 26857/65. Heading H1K. A photo-sensitive device, which may utilize the photo-conductive, photo-voltaic or photoelectromagnetic effects, comprises a crystalline element which transmits radiation of a particular wavelength or wavelength band, and a monocrystalline photo-responsive portion sensitive to that particular wavelength or wavelength band formed on a surface of the transmissive element as an epitaxial extension of the element lattice. Electrodes are provided on the photo-responsive material. The transmissive element may be entirely monocrystalline or may be polycrystalline, but of sufficient optical quality and having a monocrystalline surface portion on which the photo-responsive layer is formed. Fig. 3 shows a photo-voltaic diode comprising a P-type layer 121 of indium arsenide formed either epitaxially on or by diffusing zinc or cadmium into a monocrystalline N-type layer 11<SP>1</SP> of indium arsenide epitaxially deposited on an N-type or intrinsic substrate 10 of gallium arsenide, which has a larger band gap (1.38 ev.) than that of the indium arsenide layer (0.33 ev.) so that the substrate is transparent to radiation operative on the PN junction. A plurality of diodes may be formed on the substrate. Fig. 7 shows a modification in which the Ga As substrate 20<SP>1</SP> is formed as a lens. The P-type In As layer 22<SP>1</SP> may be formed by diffusion or epitaxial deposition on to the N-type In As layer 21, and subsequent mesa formation by etching. The diode may be formed by planar techniques including oxide masking. A photo resistor comprising a layer of In As or Ge is also described. The transmissive substrate element may comprise an aplanatic or diffusing lens, or may include other optical elements such as reticles. The structure may also be formed with germanium on gallium arsenide, or indium arsenide on gallium antimonide.
Patent GB-731780-A (GB)
Title: Device for the direct interferometric recording of changes in refractive index gradients
IPC: G01N21/45
Filed: 1953-09-30
Abstract: 731,780. Refractometers. SANDOZ, Ltd. Sept. 30, 1953 [Oct. 3, 1952], No. 26869/53. Class 97 (1). In a system for the interferrometric recording of changes of refractive index gradient in a solid, liquid or gas in which two beams from a slit are spaced apart horizontally and vertically in their passage through the object and a lens system including a cylindrical lens is provided to form images of the slit and of the object in a single plane, the vertical spacing is produced by relative rotation of the slit and of the cylinder axis of the cylindrical lens about the optical axis of the system and the horizontal spacing is produced by refracting or reflecting elements causing the two beams to cross at the object. As shown, light from the slit SP1 is collimated by the lens SKI and refracted by a double prism P1 producing two beams crossing at the cell Z containing the substance under examination and recombined by a second double prism P2, a system comprising a lens SK2, objective O and cylindrical lens Zy forming the two images on the plane M. To effect the vertical spacing the slit SP1 is rotated through an angle α about the optical axis and the lens Zy is rotated through an angle α in the opposite direction.
Patent GB-722965-A (GB)
Title: Improvements in or relating to rotary engines
IPC: F02B53/00
Filed: 1952-10-27
Abstract: 722,965. Rotary engines. PAWL, W. S. Oct. 27, 1952, No. 26981/52. Class 110 (2). A rotary engine comprises an inner helical element 1<SP>1</SP>, working within a helically-formed passage in an outer member 2<SP>1</SP>. The inner member rotates about its axis, and the axes of the element and passage rotate about each other in the opposite direction. The two axes are not parallel with each other, and the element 1<SP>1</SP>, in any spherical plane centred at the point of intersection of the two axes, has a circular section equal to the width of the passage in the member 2<SP>1</SP>. This passage has a section with semi-circular ends, the centres being spaced from the axis of the element 1<SP>1</SP> by a distance twice the eccentricity of the two axes. The pitch of the element 1<SP>1</SP> is half that of the passage along any corresponding increment of the axes, and the pitch diameter of the element 1<SP>1</SP> is twice the eccentricity of the axes. The arrangement provides overlapping chambers 3<SP>1</SP>, and air entering at the inlet and confined in any one chamber is compressed. Fuel is admitted at 19 and the mixture ignited by spark-plugs 25, and the gases are allowed to expand in the chambers 31 on their way to the exhaust. In the drawing a member 10 joins the two parts of the element 1<SP>1</SP> adjacent the fuel inlet and ignition means. The outer ends of the element 1<SP>1</SP> carry pinions 11, 12, which engage internal gears 13, 14 on the casing 2<SP>1</SP> to provide rigidity, and the casing, which is mounted on stationary bearings 15, 16, carries a gear 28 which meshes with and drives a gear 29 on a power take-off shaft 30. In Fig. 3 (not shown), a similar arrangement as that shown in Fig. 2 is adapted to a two-wheel drive for a vehicle. Specification 427,475 and U.S.A. Specification 2,553,548 are referred to.
Patent GB-463440-A (GB)
Title: Improvements relating to gas cookers
IPC: F24C3/08
Filed: 1935-10-01
Abstract: 463,440. Gas cooking-stoves. RADIATION, Ltd., and YATES, H. J. Oct. 1, 1935, Nos. 27060 /35 and 4224 /36. [Class 126] In a gas cooking-oven with a partially or completely closed base d, a chamber g enclosing the burner h has an opening at its upper end to deliver the hot gases from the burner to the oven without obstruction from the oven walls, inwardly inclined or curved sides m, n, ample area of cross-section near the burner, and an air inlet l of minimum size for satisfactory combustion even when the burner is overloaded. Slots q or other perforations or a mica window permit the flames to be seen. At each end of the back of the oven is an outlet to a rear chamber j with a central outlet k. The burner may be adjacent the side walls, and the outlets may be in the sides or near the top of the oven. Two burners with separate chambers may be provided. According to the second Provisional Specification, entrance to the burner enclosure decreases in cross-section away from the burner.
Patent GB-1209530-A (GB)
Title: Sinter-moulding or sinter-coating process and products thereof
IPC: B29C41/22
Filed: 1968-06-06
Abstract: 1,209,530. Sintered articles. VAESSENSCHOEMAKER HOLDING N.V. 6 June, 1968 [7 June, 1967; 30 May, 1968], No. 27060/68. Heading B5A. [Also in Divisions B2 and C3] Articles may be made by sintering a uniform mixture of a finely-divided thermoplastic and 0À01-10% by wt. of the thermoplastic of a cross-linking agent which reacts with the thermoplastic at the sintering temperature while the mixture is accessible to the atmosphere. The mixture may also contain 0À2-5% blowing agent. In examples, articles of polyethylene were rotationally cast using dicumyl peroxide and t-butylperbenzoate as crosslinking agents, one example having three layers, the middle layer having a foamed structure.
Patent GB-709138-A (GB)
Title: Improvements in or relating to apparatus for clearing yarns or threads
Inventor: COLLE VICTOR GEORGE VAN
IPC: B65H63/06
Filed: 1951-11-20
Abstract: 709,138. Slub catchers. MANCHESTER METAL WORKS, Ltd., and FISHWICK, T. May 14. 1952 [Nov. 20, 1951], No. 27153/51. Class 120(2) A slub catcher comprises a carrier plate 5 to which are attached blades 14<SP>1</SP> and 14<SP>2</SP> by means of screws 15. The blade 14' is positively located on the carrier plate whereas the. screws 15 holding the blade 14<SP>2</SP> pass through elongated holes 17 permitting, when the screws are slackened, lateral adjustment of the blade. The carrier plate 5 has flanged sides 7 which are V-notched at 10 to rest upon a horizontal traverse rail 6. A clip 9 is attached to the rail 6 and has extending therefrom a screwed stem 8 passing through holes in the flanges 7 so that by means of a nut 11 the lateral position of the device may be adjusted against the presssure of a spring 12. The blade 14<SP>2</SP> is provided with a stud 18 upon which is located a hairpin spring 19, the limbs of which are bent to form a loop around the stud, and which biases the blade 14<SP>2</SP> towards the blade 14'. A portion of one flange 7 is bent to form a guide 21 in which slides a plunger 23. The plunger is urged upwardly by a spring 24 and its movement in this direction is limited by a collar 27. A link 26 connected to the plunger has an open hooked end embracing the stud 18, so that when the plunger is depressed against the action of spring 24, the screws 15 of blade 14<SP>2</SP> being slackened, the blade is laterally moved away from blade 14<SP>1</SP> and a gap gauge 30 may be inserted between the blades before the screws 15 are again tightened. A forwardly extending lug 31 of the carrier plate 5 carries a screwed stem 32 of a vertically adjustable thread guide. Specification 635,738 is referred to.
Patent GB-1516412-A (GB)
Title: Zone regulation of casing inflation gas
IPC: A22C13/00
Filed: 1975-06-27
Abstract: 1516412 Tubular casing UNION CARBIDE CORP 27 June 1975 [28 June 1974] 27221/75 Heading A2B Apparatus for maintaining a difference in inflation gas pressure between two interior zones of a flexible film tube (e.g. collagum sausage casing) which is advanced from one zone to the other comprises a base roll having a smooth circumferential surface and first and second nip rolls spaced apart for pressing the tubing against the base roll, the nip rolls being movable relative to the base roll, thus forming a succession of gas chambers of variable volume in the advancing tubing. The casing 19 passes from a dryer 11 to a pressure regulating station 13, a metering roll assembly 15 to a shirring station 17. The pressure in the dryer may be low but at the pressure regulating station 13 it is high. In order to allow air to pass from the inflation head 29 one of the metering rolls 49-51 is provided with a circumferential groove 59. The pressure regulating station 13 comprises a base roll 31 which effects contact with the casing and nip rolls 33 and 35 which are so mounted as to permit the nip contact to be varied, being mounted in yokes actuated by air pressure.
Patent GB-957342-A (GB)
Title: Apparatus for directing ionising radiation in the form of or produced by beams from particle accelerators
IPC: G21K5/04
Filed: 1961-07-27
Abstract: 957,342. Linear particle accelerators; X-ray tubes. VARIAN ASSOCIATES. July 27, 1961 [Aug. 1, 1960], No. 27305/61. Heading HID. [Also in Division H5] A beam of accelerated particles for direct irradiation of an object or for producing X-rays for irradiating the object, is bent through 90 degrees and the deflected particle beam is movable to vary the direction of the radiation on to the object. The accelerator may be a Van de Graaff generator, resonant transformer or a linear accelerator, the beam may be pulsed or continuous and the object may be irradiated with electrons, protons, deuterons or neutrons. In Fig. 5 the irradiation head 21 includes two magnets 26, 27 for bending the beam 28 first in one and then in the opposite direction to fall on a rotatable X-ray target 28<SP>1</SP>. The X-rays pass through an aluminium " beam flattener " 31 which is thicker in the centre to provide a uniform intensity across the X-ray beam. The size of the X-ray beam is limited by a lead collimator and the head has lead shielding 33. In the head of Fig. 8 the beam 46 is bent through 270 degrees and directed vertically on to the X-ray target 47. The deflecting magnet may have a straight edge to produce a parallel beam or a concave edge to produce a focused spot. By suitable choice of the magnet parameters energy and direction focusing may be achieved. In Fig. 14 the magnet combination 61, 62 may be used to produce a slightly diverging particle beam for the irradiation of a broad object or, with the first magnet 61 de-energized the beam is directed on to an X-ray target 63 located between the poles of magnet 62. The entrance face of the magnet 62 can be tipped slightly to produce an elongated focal spot on the target. The irradiation head is rotatable about the axis of the accelerator and the accelerator which is mounted horizontally is rotatable about a vertical support and is supported by a movable overhead crane or the accelerator is supported on a counter-weighted gantry rotatable about a horizontal axis.
Patent GB-579123-A (GB)
Title: Improvements in or relating to electric detonators and primers
IPC: F42C19/12
Filed: 1939-10-06
Abstract: 579,123. Electric primers. BULL, V. G. Oct. 6, 1939, No. 27406. [Class 9 (i)] An electric primer for explosive charges comprises a case 10 for the priming charge 21 and a conducting rod in the form of a screw 15 retained against flanges 13 on the head by insulating washers 14 and nut 17, the heating filament 19 being wound round an insulating sleeve 18 on the end of the screw and embedded in the charge. The primer may be used for igniting a cordite cartridge for discharging torpedoes.
Patent GB-1497847-A (GB)
Title: Restraining device for the head of an occupant of a vehicle
IPC: B60R22/00
Filed: 1976-07-01
Abstract: 1497847 Head restraining device R SATZINGER 1 July 1976 [1 July 1975] 27458/76 Heading A3V A head restraining device for a vehicle comprises head bands 4 and chin strap 5 connected to a flexible tape 6 by a loop 8 which tape 6 is fastened to the back of the seat 7. The tape 6 may be energy absorbing or may be connected to an energy absorbing damper.
Patent GB-955970-A (GB)
Title: Improvements in and relating to foamed polymers
IPC: C08G18/16
Filed: 1960-08-09
Abstract: A process for the preparation of foamed polymers comprises reacting in the presence of water and/or a blowing agent an organic polyisocyanate with hydroxy polyalkyleneoxy ethers of substituted tetrahydropyran having the formula: <FORM:0955970/C3/1> in which Y represents a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms; R4 represents ethylene radicals, propylene radicals or mixtures thereof; m is 2, 3 or 4; and n is a number having a value of at least 2.  The reaction may be effected in a single stage or by the prepolymer or semi-prepolymer methods. Foaming agents, catalysts, thickening agents, fillers, emulsifying agents, and retarding agents specified are the same as those used in the process of Specification 946,310.  In examples foams are prepared by reacting together (1) a propylene oxide adduct of 3,3,5,5-tetrakis-(hydroxymethyl) - 4 - hydroxy - tetrahydropyran having a hydroxy number of about 357, dibutyl tin dilaurate, silicone oil surfactant, trichloromono fluoromethane and 2,4- and 2,6-tolylene diisocyanates; (2) a propylene oxide adduct of 3,3,5- tris (hydroxymethyl)-5-methyl-4-hydroxy tetrahydropyran, dibutyl tin diacetate, silicone oil surfactant, trichlorofluoromethane, and 2,4- and 2,6-tolylene diisocyanates; (3) an ethylene oxide-propylene oxide adduct of 3,5-(hydroxymethyl)-3, 5-dimethyl-4-hydroxytetrahydropyran of hydroxyl number about 168, dibutyl tin dichloride, triethylamine, silicone oil surfactant, water and tolylene-2, 4- and 2, 6-diisocyanates; (4) the hydroxypolymer as in (1), water, silicone oil surfactant, dioctyltin oxide and 2, 4- and 2, 6-tolylene diisocyanates containing ethoxylated cellulose.
Patent GB-860176-A (GB)
Title: Improvements in or relating to electric generators
Inventor: CARMICHAEL THOMAS FRAZER
IPC: H02K21/22
Filed: 1959-08-12
Abstract: 860,176. Magnets. SYNCRO CORPORATION. Aug. 12, 1959, No. 27598/59. Class 35. The output, regulation and waveform of a flywheel magneto are improved by introducing capacitance in a part of the generating winding this capacitance producing a resonance of higher frequency than that of the generator output. As shown in Fig. 2, the flywheel being omitted, series connected generating windings are mounted on stator poles 28, 34, 36, 38, 40, while the condenser 76 in series with a coil 46 on pole 32 giving a series resonance higher than the output frequency, is connected in parallel with these windings between output terminals 70, 80. The magneto may carry an ignition coil 44 and the main generating winding may be centre-tapped to feed a battery through a full-wave rectifier. If desired, two resonant coils, one at either end of the main winding may be used. Various of the poles may be used. In a modification, two condensers may each shunt half of the whole winding, the output being taken from part only of the whole winding. The output and resonant windings may be electrically separate and wound on alternate poles. The resonant capacitance may be incorporated into the pole winding, Fig. 12, by winding strips 140, 144 of aluminium foil spaced by insulating paint, paper or plastic 142, 146 to form a pole coil to which leads 152, 154 are connected to opposite ends of the conducting strips. Electrolytic capacitances may be used.
Patent GB-206988-A (GB)
Title: Improvements in and relating to aeroplane engines and the like
IPC: F02B75/22
Filed: 1922-10-11
Abstract: 206,988. Thomas, B. D. Oct. 11, 1922. Motor power plant.-In a power unit for aeroplanes of the kind comprising a plurality of separate engines 11 having any desired number of cylinders mounted on a common central casing of polygonal form, each engine being geared to a central power shaft through an over-slipping clutch, the central casing 10 comprises end plates and radial longitudinal partitions 14 forming chambers adapted to receive or constitute the lower parts of the crank cases of the several engines. The end plates may be made double and reinforced by integral ribs 13<c>, Fig. 6, additional transverse partitions being provided in the casing so as to afford additional bearings for the crankshaft between the cranks. The casing 10 is secured to the aeroplane by a framework 24.
Patent GB-423089-A (GB)
Title: Improvements in and relating to pedal-crank driving mechanism for cycles
IPC: B62M3/00
Filed: 1934-09-26
Abstract: 423,089. Pedal-crank driving-mechanism. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Batterien - und Elemente- Fabrik System Zeiler Akt.-Ges.; 20, Rungestrasse, Berlin) Sept. 26, 1934, No. 27636. [Class 136 (ii)] In pedal-crank driving-mechanism for cycles, of the type having inertia devices for carrying the mechanism past the dead-centre position, a single weight is mounted on the mechanism outside the crank-shaft, the centre of gravity of the weight lying on a line perpendicular to the plane passing through the cranks. The weight may be attached to the crank-shaft, to the chain wheel, or to one of the cranks. In the form shown, an annular lead block 16, Fig. 3, is secured between dished members 17, 18, the member 17 being integral with an arm 20 having a bent part 22, which, together with a bent plate 23 riveted to it at 24, is clamped around the crank 12 by means of bolts 25. At the end of an extension of the part 22 is a slot 27 adapted to engage the pedal spindle.
Patent GB-332123-A (GB)
Title: A hand appliance for cleaning steps
IPC: A47L13/24
Filed: 1929-09-11
Abstract: 332,123. Lilly, E. Sept. 11, 1929. Addition to 304,017, [Class 19, Brushing &c.]. Pivoted handles; holders with clamping devices for mops.-A mop, for cleaning steps as described in the parent Specification is provided with a handle 18 adjustably mounted in lugs 19 on a removable back plate 15, to which a frame 12 is attached carrying the mop material. The attach. ment is by spring clips 22.
Patent GB-770685-A (GB)
Title: Improvements in methods of and apparatus for manufacturing wheel rims for road vehicles
IPC: B21D53/30
Filed: 1954-09-24
Abstract: 770,685. Making vehicle wheel rims; forging; stamping. LEMMERZ-WERKE GES. Sept. 24, 1954 [Oct. 10, 1953], No. 27688/54. Classes 83 (2) and 83 (4). A method of making wheel rims of the kind adapted to receive pneumatic tyres for road vehicles from sheet metal, comprises bending the metal into a hoop, butt-welding the joint and pressing the hoop 10 axially into a space defined between a die 11 and a punch 16, 17 which space is shaped so as to thicken the wall of the rim at the weak points 21, 22. The punch comprises an upper pressing part 16 and a lower spring-biased part 17 which closes against a deflecting ring 13 to define the rim profile. The deflecting ring forms a channel 22 on the rim. The upper radial flange is formed in a second pressing operation by a flanging ring 20 detachably secured to the punch. Alternatively a separate punch may be used or the punch part 16 may be so shaped that the entire rim is formed in a single operation.
Patent GB-1392877-A (GB)
Title: Pipe cutting device
IPC: B23D21/02
Filed: 1972-06-14
Abstract: 1392877 Pipe cutting apparatus DND CORP 14 June 1972 [27 Jan 1972] 27826/72 Heading B3T Pipe cutting apparatus comprises a split frame clampable around the outside of a pipe, a ring gear 26 surrounding the pipe and mounted for rotation on the frame, a cutting tool assembly 25 carried by the ring gear and rotatable therewith and having means for effecting radial infeed of the cutting tool in response to the rotation of the ring gear. The cutting tool assembly is mounted on one of a pair of arms 61, 60 pivotally connected at one of their respective ends 62 to the ring gear, there free ends 67, 68 being connected by fluid pressure means 63 to urge the cutting tool 72 radially towards the pipe surface. The arms each carry a roller 70, 81 which engage diametrically opposite positions of the pipe surface and which rotate as the ring gear rotates, the two arms pivoting about their point of connection with the ring gear as the rollers follow the contour of the pipe surface. One of the rollers is provided with an eccentric portion which is adapted to actuate a cam or rack and pinion mechanism to effect rotation of feed screws 103, 104 forming part of the cutting tool assembly to provide radial in-feed of the cutting tool during rotation of the ring gear which is driven by a motor 24. The motor may be electric or fluid pressure operated.
Patent GB-670815-A (GB)
Title: Improvements relating to thread-cutting dies
Inventor: WATKINS DOUGLAS MACKENZIE
IPC: B23G5/10
Filed: 1949-11-01
Abstract: 670,815. Screwing-dies. BRITISH TAP & DIE (HOLDINGS), Ltd. Oct. 30, 1950 [Nov. 1, 1949], No. 28014/49. Classes 83 (ii), 83 (iii), and 83 (iv). A screwing-die comprises an outer ring 6 and a number of chasers 7 assembled between spacers 8 to form an annular assembly which is retained rigidly in the outer ring by wedge action. The angle of taper on the complementary surfaces of the ring, spacers and chasers is about 1 degree, to give the wedge action. The chasers have threadcutting forms of the type described in Specification 670,814 and may have rectangular bases as in Fig. 1 or parallelogram-shaped bases as in Fig. 7. The spacers and outer ring may both be of steel but preferably a metal with a higher coefficient of expansion, such as brass or aluminium alloy, is used for the spacers, so that the grip on the chasers increases when the die heats up in use. Assembling force-fits.-A press-tool for assembling the die comprises a tool head 23 and a complementary base 10 slidable in a housing 11. The chasers, which are numbered to ensure their correct order of assembly, are placed on lands 20 on the base, the spacers are placed in the depressions 19 and the outer ring is placed round the assembly, a spigot 21 locating the chasers against the inner surface of the ring. When the tool head is lowered, the base 10 descends until its flange 13 meets a distance-piece 15 and the spacers are fully forced into the ring, leaving the chasers standing proud to be fully compressed into the die between tools having plane surfaces.