baber/WOPTO huggingface dataset:
Patent GB-1444238-A (GB)
Title: Liquid metal cooled fast breeder nuclear reactors
IPC: G21C19/06
Filed: 1973-12-06
Abstract: 1444238 Dashpots UNITED KINGDOM ATOMIC ENERGY AUTHORITY 22 Nov 1974 [6 Dec 1973] 56703/73 Heading F2S [Also in Divisions G4-G6] A dashpot unit, for mounting within a liquid sodium cooled nuclear reactor beneath a transfer part to act as an energy absorbing device should a fuel assembly being transferred be accidentally dropped, comprises a cylinder 40 closed at its lower end and a piston 41 which are normally urged to a vertically extended condition by a helical coil compression spring 42. The piston 41 comprises an inverted cup having a circular flange 43 and its extent of travel is limited by a pad 44 in the base of the cylinder 40 and by lugs 45 extending radially inwards from a flange 46. The piston 41 has a flange 47 at its upper end which presents a striker platform to a descending fuel assembly, and is guided during downward travel by a coaxial tubular extension 48 of the cylinder 40. The flange 47 has four sectors cut away to present four equally spaced bearing surfaces 49 for guiding the piston 41 within the extension 48. The bore of the cylinder 40 converges towards the closed lower end so that a peripheral clearance between the piston and cylinder diminishes as the piston travels downwardly. The extension 48 has apertures 50 for the discharge of sodium and a lip 51 for engagement by a lifting grab.
Patent GB-1204568-A (GB)
Title: Improvements relating to door and like assemblies
Inventor: PERRY DONALD JOHN
IPC: B60J5/04
Filed: 1968-11-29
Abstract: 1,204,568. Door and like assemblies with draught sealing strips. PERRY BROS (HALL GREEN) Ltd. 29 Nov., 1968, No. 56775/68. Heading E1J. A door, window, skylight, ventilator or like assembly comprises a door 10 or like member hinged to a frame &c 14 and provided on the door &c 10 or on the frame &c 14 with a yielding and resilient tubular sealing strip 27 and on the frame or the door a surface 22 which extends at an angle .to the plane of the door when in the closed position to contact the strip 27. The surface 22 is formed on part of the web of a channel-shaped section adapted to receive a wall edge 14 within the channel and is provided with a subsidiary channel 36 forming a gutter to shed rain water clear of the door.
Patent GB-1406230-A (GB)
Title: Foamable vinyl chloride polymer compositions
IPC: C08J9/06
Filed: 1971-12-09
Abstract: 1406230 Foamable rigid vinyl chloride polymer compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 24 Nov 1972 [9 Dec 1971] 57260/71 Heading C3C A foamable rigid composition having a B.S. softness of 0-10 consists of a vinyl chloride polymer which is self-foaming (e.g. a vinyl chloride/methyl methacrylate copolymer) or contains a blowing agent which is a vapourizable liquid, gas, azo, hydrazo or nitroso organic compound or carbon dioxide liberating compound, the polymer being a homopolymer or copolymer of vinyl chloride with a minor amount by wt. of one or more ethylenically unsaturated monomers, and a foam stabilizer which is 0À2-5%-by wt. (of the vinyl chloride polymer) of at least one alkyl acrylate homopolymer or copolymer with up to 40% by wt. of one or more comonomers. If the alkyl acrylate is present as a graft polymer then the content thereof in the graft polymer is used to determine its concentration in the composition. In the examples polyvinyl chloride was compounded with a graft polymer obtained by polymerizing vinyl chloride in the presence of poly-n-butyl acrylate (prepared by emulsion polymerization of the monomer in an aqueous mixture containing an emulsifier, potassium persulphate and lauryl mercaptan); the mixture also included normal and tribasic lead stearates, a wax lubricant, a chlorinated paraffin, CaCO 3 , epoxidized soya bean oil, and/or an acrylonitrile/ butadiene/styrene copolymer together with oxybis-(benzene sulphonhydrazide) and azodicarbonamide. The composition may be formed into granules which may be then extruded to form a foamed rod or plank.
Patent GB-1141480-A (GB)
Title: Improvements in rain and/or draught excluders
Inventor: TURNER ARTHUR RAYMOND
IPC: E06B7/18
Filed: 1966-12-23
Abstract: 1,141,480. Door weather excluders. A. R. TURNER. 23 Dec., 1966 [5 Jan., 1966; 9 March, 1966], No. 57713/66. Heading E1J. A hinged flap device for closing the gap between the bottom of a closed door and a tread surface, such as a sill or step comprises extruded mounting plate 30 in cross section having one rounded end 33 and a shoulder 34 at its other end and extruded flaps 31 in crosssection having a socket 36 at one end receiving the rounded end 33 to provide a longitudinally continuous hinge for the flap and a main portion 37 providing a tread surface with the other end positioned to rest on the shoulder 34 when the flap is in the down position, and further having a projection 39 to be enjoyed by a pelmet 40 attached to the adjacent surface of the door, so that when the door is closed the pelmet pushes the projection 39 and causes the flap 31 to pivot about the edge hinge 33-36 to turn up against the pelmet and close the gap, and when the door is opened the projection 39 will be freed from the pelmet and allows the flap to return to its initial inoporative position. Alternatively the flap may carry the rounded edge and the mounting plate the socket in which case the mounting plate may be widened to include a sill (Fig. 6) with a flanged edge to pass over the edge of a step and the device may be used with a vertically sliding door (Fig. 11).
Patent GB-1293836-A (GB)
Title: Improvements in and relating to carrier bags for flowers
Inventor: FRICKE ARNOLD
IPC: B65D30/00
Filed: 1970-12-04
Abstract: 1293836 Carrier bags A FRICKE 4 Dec 1970 [5 Dec 1969] 57755/70 Heading A4G [Also in Division B8] An elongate rectangular bag made from a plastics sheeting blank which is folded over e.g. along centre line 10 to form one closed edge and has at least one lower edge 12 closed, has a longitudinal edge 16 which is fully open or only partly sealed at the lower end 16a, and a loop handle or hand-hole 21 formed at the upper end of the open edge. The bag may be open at upper edge 13 and when carrying flowers in a pot 17, may have a seam 18 joining opposite bag walls to form a support for the pot resting on the bottom edge 12 when the bag is carried in a sloping fashion by handle 21. The open mouth edge 16 may be closed by tearable perforated adhesive tabs 30.
Patent GB-1411199-A (GB)
Title: Electroluminescent semiconductor apparatus and method of fabricating the same
IPC: G09F13/20
Filed: 1973-12-13
Abstract: 1411199 Electroluminescence HEWLETTPACKARD CO 13 Dec 1973 [16 Feb 1973] 57858/73 Heading C4S An element of a display apparatus comprises an L.E.D.<SP>12</SP> in a cavity with non-specularly reflecting walls 21 filled with optically transmissive material containing light scattering particles 28. The arrangement provides a uniformly illuminated display surface and avoids metallizing the cavity walls. The cavity is defined by an aperture in a body 16 and a base 18. The L.E.D. is of GaAsP or GaP. The surfaces 21 are white or coloured, surfaces 32, 34 are black. The filling is epoxy resin containing glass particles. Either pair of walls of the cavity can slope inwardly or outwardly for all or part of the thickness of body 16. The display surface may be covered with a mask containing a cut out to be displayed. The body 16 with cavities is cast and the top surface attached to a sticky tape. The body is inverted and the cavities filled, centrifuging ensures that filling is complete. The base with L.E.D.'s attached is secured to the body and the assembly cured.
Patent GB-1212876-A (GB)
Title: A platform for inertial navigation systems or the like
IPC: G01C21/18
Filed: 1967-12-22
Abstract: 1,212,876. Inertial navigation systems. PHILIPS' GLOEILAMPENFABRIEKEN N.V. Dec. 22, 1967 [Dec.27, 1966], No.58419/67. Heading G1C. A gimbal suspended holder or inertial platform 1 for supporting a maximum of six inertial components 4, 5, 12, 13, 14, 15, such as gyroscopes and accelerometers is provided with six locating surfaces, as 8, 9 surrounding recesses, as 6, 7 in the platform, the surfaces, as 8, 9 serving to locate guide flanges, as 10, 11 and the components for determining the positions of the components in the platform, the six locating surfaces being defined by or being parallel with the surfaces of a cube, a diagonal of which coincides with the axis O about which the platform is mounted for rotation on bearings 2, 3 in the inner gimbal ring. In the arrangement shown the locating surfaces of the platform are symmetrically disposed around the axis O, and the components 5, 14, 15 adjacent the bearing 3 are gyroscopes whilst the components 4, 12, 13 adjacent the other bearing 2 are accelerometers. For reasons of space the three locating surfaces adjacent one bearing may be displaced along the axis O from the position defined by the cube pertaining to the other three locating surfaces. Additional location for the components may be provided by co-operating pins 24, 25 and recesses 11 on the locating surfaces and component guide flanges and magnetic shields as 17, 18, 19 may be provided for the components. Apertures 16 at the positions of the corners of the defined cube may be provided for accomodating other platform components such as platform electronics.
Patent GB-1358470-A (GB)
Title: Footwear and particularly to pram boots
IPC: A43B3/30
Filed: 1972-12-19
Abstract: 1358470 Boots &c LOUIS ISRAEL (FOOTWEAR) Ltd 19 Dec 1972 58645/72 Heading A3B  A pram boot (i.e. a baby's bootee) includes a sole 1, a front upper portion 2 attached to the sole 1 around a major forward portion thereof and forming an opening for receiving a foot, and a separate rear uper portion 3 which is sufficiently flexible to facilitate its being folded back by hand, the portion 3 flexing about a line 9 exetnding close to and substantially parallel with the sole I as shown in Fig. 2 to allow easy access of the foot into the front portion 2 in a direction generally parallel with the sole of the boot. When the foot has been placed in the front portion 2, the rear upper portion 3 is folded upwardly over the heel of the foot and is fastened by straps 6, 7 and buckle 8. The rear portion 3 may overlap the sides of the front portion 2 when in its normal position.
Patent GB-1324810-A (GB)
Title: Alignment apparatus
Inventor: JOHANNSMEIER K H
IPC: H01L21/68
Filed: 1970-12-10
Abstract: 1324810 Photographic apparatus; optical alignment apparatus KASPER INSTRUMENTS 10 Dec 1970 [11 May 1970] 58766/70 Headings G2A and G2J Optical alignment apparatus used to align a mask pattern with respect to a workpiece includes means for placing the adjacent surfaces of the mask and the workpiece in substantially parallel planes spaced a finite distance apart, the aligning being effected without bringing the workpiece and mask into contact and without moving the mask.  Sequence of operations A mask 22 is loaded on to a raised holder 12 and is held thereon by suction, the holder 12 then being lowered and held against a top plate 18 by suction. The workpiece in the form of a wafer 54, is loaded on to a chuck 52 and held thereagainst by suction, the chuck being in its lowermost position, Fig.1. A calibrator 238 is then positioned between the holder 12 and chuck 52, the latter is raised by a first piston 120 until a peripheral portion of the wafer 54 engages structure 240 of the calibrator 238, Fig.8, thereby pivoting the chuck 52 so that the top surface of the wafer 54 is parallel to a reference surface 242 of the calibrator. A locking ring 208 is then driven into engagement with the surface 242, Fig. 8, so that the upper ring surface is parallel to and a selected distance x above, the wafer top surface. The ring 208 is locked in this position. The chuck 52 is then lowered so that the calibrator 238 may be retracted before the chuck is again raised by the piston 120 so that the upper ring surface contacts a marginal mask portion Fig.9. This again pivots the chuck 52 so that the upper wafer surface is parallel to the lower mask surface. The first piston is locked and the ring 208 released. A pattern on the wafer 54 may then be aligned with a corresponding pattern on the mask 22 using an optical unit (20), Fig.10 (not shown), the chuck 52 and holder 12 being horizontally movable relative to each other. The chuck 52 is also horizontally rotatable. A second piston 162 may raise the wafer 54 to be closed to the mask 22 prior to an exposure being made. After making the exposure, the pistons are released so that the wafer 54 may be replaced by the next wafer to be aligned and exposed. The reference surface 242 of the calibrator 238 may be made adjustable, by spacing a plurality of reference air jets around the surface 242 to provide an adjustable reference air cushion. The structure 240 may be similarly adjustable, Figs. 7A, 7B (not shown), or it may be formed by an adjustable annular step, Figs.4A, 4B (not shown) or by adjustably mounted pins (250), Figs. 6A, 6B (not shown). In another embodiment, Figs. 11, 12 (not shown) an alternative chuck (280) is provided in liew of the calibrator 238 and chuck 52.
Patent GB-1236410-A (GB)
Title: Mechanical vibration and unpitched-sound filter
IPC: F16F13/00
Filed: 1968-12-11
Abstract: 1,236,410. Record player mountings. BRAUN A.G. 11 Dec., 1968 [14 Dec., 1967], No. 59022/68. Heading G5R. [Also in Division F2] A mechanical vibration and unpitched-sound filter which may be used as a connecting element between parts of a record player, for example, has a resilient connector in parallel with a flowdamping piston which is movable in three directions in a fluid. The resilient connector is a spring 3, Fig. 1, which is positioned between parts 1, 2 of an electroacoustic apparatus and flow-damping is effected by means of a piston 41 supported in a damping fluid 43, the viscosity of which can be pre-selected. A cylinder 44 containing the fluid has its peripheral wall spaced a predetermined distance from the piston 41. A closed unit is shown in Fig. 2 and comprises a housing 142 which is closed by a deformable sealing collar 143 and contains a spring 13, a piston 141 having a piston-rod 144 which extends through the collar 143, and fluid 140. The piston 141 is connected to one part of the apparatus, via a felt sleeve 145 and a member 11, and the housing 142 is connected to another part of the apparatus by means of a member 12. In a modification pressurized-air replaces the spring 13.
Patent GB-1459182-A (GB)
Title: Fastening device comprising screw-threaded members
IPC: F16B39/28
Filed: 1972-12-22
Abstract: 1459182 Screw assembly LIGHTNING FASTENERS Ltd 14 Feb 1974 [22 Dec 1972] 59316/72 Heading F2H A screw threaded assembly comprises a screw 10, and a nut 15, the screw 10 having a locking surface or surfaces, and the nut having a projection or projections 20 which deform inwardly on tightening the nut against an opposing surface into engagement with the locking surface or surfaces to lock the nut to the screw. The locking surfaces may be provided by means of flats 13 or a cross-cut (Fig. 6, not shown). Projection 20 may be a continuous annulus, or a series of projections may be provided. A projection or projections may be provided also at opposite sides of the nut. The screw and nut may be of pressure die-cast zinc alloy. Alternatively the nut may be steel, brass or aluminium alloy. The screw may be hexagonal headed or be a hook or an eye-bolt. The nut may be hexagonal or of knurled cylindrical shape.
Patent GB-1411400-A (GB)
Title: Device for automatic equalisation transmission systems
IPC: H03H15/00
Filed: 1972-12-27
Abstract: 1411400 Automatic equalizers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Dec 1972 [30 Dec 1971] 59638/72 Heading H4R Automatic adaptive equalizer comprises a shift register 2 the taps of which are connected to the columns of a matrix 3 of multiplying elements C3, C2 ... C3, the rows of which provide outputs of respective different transmission characteristic. The signals on the respective outputs of the rows of the matrix are fed to a quality analyser 5 which determines the signal of highest quality and unblocks the one of the gates G1 to GN which allows that signal to pass to the output. The quality analyser 5 may determine the error between the actual output of the row of the matrix and the quantized output of that row and then determine which row has the lowest maximum error over a predetermined period, the lowest total of absolute error signals over a predetermined period, or the lowest total of the squares of the error signals over a predetermined period. As described the input signal 1 is converted to digital form in delta modulator 6 and fed to shift register 2, each tap of which is separated by a group 13, 14 ... or 18, of eight stages. The outputs of the rows of the matrix elements, which are preferably amplifiers of different gain factors, are fed via d to a converter D/A1 to N and samplers E1 to EN to the quality analyser 5 and via delay devices B1 to BN to the gates G1 to GN. The delay provided by the devices B1 to BN are sufficient to allow determination of the best quality signal and opening of the respective gate in time for passing the signal on which the determination was made. Fig. 7 shows one channel of a quality analyser in which the signal on each equalizer output is quantized in a respective quantizer Q and the resulting value subtracted from the unquantized signal in differential amplifier D. The resulting difference signal or error signal is rectified in rectifier R and integrated for a period determined by the rate of operation of switches SW, SW<1> at the end of an integration period, before the integrator is discharged by closing of switches SW<1>, the integrated absolute value of the error signal is transferred to capacitor C. The charge on the capacitor is compared with a ramp signal in differential amplifier P and the comparison triggers a flip-flop RS when the ramp voltage equals the charge on the capacitor. The first flip-flop to trigger inhibits the flip-flops in the other channels of the analyser, and operates the respective flip-flop D to open the appropriate one of the gates G1 to GN. By replacing the rectifiers R by multipliers (M) the quality analyser will operate to determine the equaliser output providing the minimum sum of the square of the errors over a predetermined time, Fig. 5 (not shown), while with replacement of the rectifier by a peak rectifier the quality analyser determines the channel with the lowest maximum error signal over a predetermined time.
Patent GB-1314840-A (GB)
Title: Vehicle washing apparatus
IPC: B60S3/06
Filed: 1970-12-18
Abstract: 1314840 Vehicle washing apparatus CECCATO & C SpA 18 Dec 1970 [20 Dec 1969] 60317/70 Heading B7J Vehicle washing apparatus comprises a portal frame 4, which can be displaced relative to a vehicle V by means of a motor 12, a rotary scrubbing brush 1 carried by brush supports 8 so as to be vertically displaceable in slots 8<SP>1</SP> therein, a motor 11 for raising the brush, a sensing device 10 which causes a circuit to operate the motor 12 when the brush supports are in their normal position, and to operate only the motor 11 to raise the brush when the brush supports are pivoted through more than a predetermined angle, and a counterweight 9 arranged to allow the brush 1 to descend when the motor 11 is de-energized. The portal frame may be displaced in either direction, and the brush rotated in either direction. On changing the direction of displacement of the frame and rotation of the brush by switches 16, 16<SP>1</SP>, see  Fig. 2, a pair of switches 2, 2<SP>1</SP> are alternately opened and closed, so that when the brush supports 8 are pivoted by more than the predetermined angle the motor 11 is stopped. A switch 13 tripped by a dog 14 may cause the apparatus to be stopped if the brush reaches a predetermined level. The operating sequence of the apparatus is illustrated in Fig. 3 (not shown).
Patent GB-1283238-A (GB)
Title: Transformers
IPC: H01F27/245
Filed: 1969-12-11
Abstract: 1283238 Transformers WESTINGHOUSE ELECTRIC CORP 11 Dec 1969 [30 Dec 1968] 60449/69 Heading HIT A three phase transformer 10 has a core 12 having four limbs 32, 34, 36, 37 of which only the limbs 32, 34, 36 are occupied by primary windings 20, 24, 28 and secondary windings 22, 26, 30 which are connected in star at 54, 74 and earthed at 56, 76 respectively. The construction is stated to have advantages over a corresponding five limbed core (80, Fig. 2, not shown). The four core limbs 32, 34, 36, 37 and yoke members 38, 40 may all have the same width W as shown, or the yoke width may be increased and the width of the external limb 37 may be reduced. The limb 37 may be made of an inferior steel such as hot rolled steel and may be butt jointed.
Patent GB-1287999-A (GB)
IPC: G03G15/10
Filed: 1970-12-21
Abstract: 1287999 Electro-photography XEROX CORP 21 Dec 1970 [24 Dec 1969] 60522/70 Heading G2H After partial transfer of a liquid-developed electrostatic charge image from a photo-conductive surface, the transfer step is repeated after application of further liquid developer to the residual image. A plurality of copies by partial transfer may be produced before application of further developer. A liquid applicator having a uniform raised pattern may be employed. The applicator may be a roll or endless belt. The photoconductive surface may be that of a drum or sheet which is cleaned for re-use or discarded, respectively, at the end of the process. As shown, after initial charging and exposing the photoconductive surface of a drum 20, the alternate steps of application of liquid by a device 24 comprising a patterned applicator belt 35 and transfer by a device 25 comprising a corona device 44 are repeated without further charging and exposing. At the end of the process, residual liquid is removed by a brush 30.
Patent GB-721008-A (GB)
Abstract: 721,008. Electric condensers. BOSCH GES., R. June 25, 1953 [June 26, 1952], No. 17580/53. Class 37. The plates of a condenser comprise a metal sheet covered by insulating lacquer and an insulating sheet covered with a layer of metal capable of burning out in the event of puncture, whereby both plates are self-supporting and the attaching of connections is facilitated. As shown (Fig. 1), the condenser stack is made up of two metal sheets 10 covered with lacquer 13 except for one edge 10<SP>1</SP>, and two insulating sheets 11 completely covered with a thin layer 12 of metal, e.g. zinc, except at the same edge. The uncoated ends of the metal sheets 10 protrude on the one side, and the metal coating 12 protrudes at the other side, each side being bridged by connectors 14, 15 respectively which may comprise a layer of sprayed zinc. The ends of the insulating sheets 11 may be turned back (Fig. 2) to prevent the end connector 15 from approaching the metal sheets 10. In another arrangement (Fig. 3) the metal sheets 23, 24 are halved, to limit the breakdown current, and the layers of metallizing 21, 22 on the insulating sheets 20 are internal plates which are not brought out. The lacquer may be a phenol, silicone, alkyd or ethylcellulose resin, with the possible addition of inorganic substances such as barium titanate to increase the dielectric constant.