baber/WOPTO huggingface dataset:
Patent GB-2058620-A (GB)
Title: A method and apparatus for effecting the lapping of wafers of semiconductive material
IPC: B24B37/04
Filed: 1980-08-15
Abstract: A thin brittle wafer 30, such as a silicon disc 0.25 mm (.01") thick and 75 mm (3") in diameter, is firmly held so as to allow the wafer to be brought into abrading contact with a moving lap wheel 14, by means of a pad 40 of resilient but firm cellular material bonded on a pedestal 36, both the pad and the pedestal surface it is upon being lapped flat. A film 62 of a liquid which is preferably water-soluble and has high surface tension, such as polyethylene glycol or an equivalent from the glycol or glycerol family, is applied to the face of the pad, and the wafer is biased against the pad face with a force sufficient to squeeze the film to near zero thickness and into the open cells or pores of the pad. When the force is released, an adhesion is created between the wafer and the pad, which holds the wafer firmly in place. <IMAGE>
Patent GB-2072026-A (GB)
Title: Concrete transit mixer
IPC: B28C5/42
Filed: 1980-08-29
Abstract: A combined tank unit has an upper compartment 26 for storing a large volume of water for adding to dry concrete mix in a driven drum 11, and a lower compartment for storing a relatively smaller volume of oil for a transmission system 17 for the drive to the drum. The two compartments are separated by a common wall 25% having a good thermal conductivity and constituting a substantial part of the surface area of the oil storage compartment. This arrangement permits the oil to be cooled by the large volume of water above, dispensing with the need for a separate heat exchanger to cool the oil during use of the mixer. <IMAGE>
Patent GB-2083339-A (GB)
Title: Disposable cap construction
IPC: A42B1/04
Filed: 1980-09-08
Abstract: A disposable paper cap (seen in top plan in Fig. 2) has a size-adjustable headband (11) having on one side thereof a pair of relatively telescoping male (22) and female (20) end flaps, and a pleated crown (12) having opposite down-turned side panels (26a, 26f) adhesively secured to the headband (11) except in the region of the male end flap (22) and arranged to define with the female end flap (20) an open ended envelope slidably encasing the male end flap of the headband. <IMAGE>
Patent GB-2084068-A (GB)
Title: A handling system for printed circuit boards
IPC: H05K13/00
Filed: 1980-09-27
Abstract: Printed circuit boards are arranged to be slidably mounted in a pair of elongate guides 5 and 6. The upper surface of the printed circuit board is inclined towards an operator to facilitate the insertion of component leads into prepared holes in the board. Each guide contains a small recess 11, 12 which locates the printed circuit board and enables it to slide easily from one work station to the next. The spacing between the guides is adjustable so as to accommodate boards of different widths. <IMAGE>
Patent GB-2096923-A (GB)
Title: Impregnation of cellular sheet material
IPC: B29C44/56
Filed: 1981-02-18
Abstract: Each side of cellular sheet material (22) is impregnated simultaneously with a different impregnant by passage through the nip of a pair of rollers (10, 12). Impregnant is delivered to the crown of each roller, upstream of the nip, from a tiltable reservoir (14) the lip (20) of which rests on the crown. <IMAGE>
Patent GB-2073802-A (GB)
Title: Mobile Box Shape Cover Net
IPC: E04B1/343
Filed: 1981-04-13
Abstract: The invention consists of a large box shaped net, supported by ropes attached to trolley mounted masts. Constructed of reinforced concrete (or metal) the trolley frames are mounted on reinforced concrete roller wheels; the trolleys being interconnected by chains for towing purposes. <IMAGE>
Patent GB-2098291-A (GB)
Title: Brake isolator valve
IPC: B60T11/18
Filed: 1981-05-07
Abstract: A valve (1) isolates a front brake of a tractor when a corresponding rear brake is actuated for steering. When fluid pressure in one chamber (29, 30) of the valve (1) is sufficiently higher than that in the other chamber (30, 29), a piston (22) moves against the bias of spring (24) to close a valve (18, 18A) associate with the chamber having the higher pressure, and thereby isolates the pressurised inlet (15, 15A) connected to the rear brake from a respective outlet (9, 11) connected to the front brake. When both rear brakes are used (i.e. for braking only), the piston (22) remains generally balanced and the valves (18, 18A) remain open. <IMAGE>
Patent GB-2099633-A (GB)
Title: Magnet assembly
IPC: H01F7/02
Filed: 1981-05-28
Abstract: A magnet assembly for a loudspeaker has a permanent ring magnet 28 surrounding an axial pole piece 25, 26 and connected to a backing plate 23, 24. The pole piece and backing plate are defined by at least one ferromagnetic element e.g. 21 and 22 of "top hat" shape. Each such element is formed from a flat stamping from which the respective hollow bosses 25, 26 which define the pole piece have been formed by a drawing process, e.g. deep drawing. <IMAGE>
Patent GB-2087823-A (GB)
Title: Fluidised conveying tube nozzel
IPC: B65G53/52
Filed: 1981-10-15
Abstract: The fluidised conveying tube nozzel comprises an inner and outer concentric tubes 12, 13 of substantially equal length. At one end the inner tube is connected via a coupling to a vacuum suction pipe line, and the outer tube is open to the atmosphere. The other end of both tubes is closed by an end disc 15 and may be inserted into the material to be conveyed. A plurality of holes 16 in the end and the disc end portion of the inner tube gives access to the inner tube, so that when the suction pump is switched on air passing along the annular space between the tubes enters the inner tube with fluidised material drawn through the holes in the end disc. The tube nozzel enables dense material to be fluidised so that the material may be conveyed considerable distances through a pipe line. <IMAGE>
Patent GB-2090671-A (GB)
Title: Diazotype material
IPC: G03C1/61
Filed: 1981-11-03
Abstract: Compounds of the formula   <IMAGE> in which R<1> to R<4> are H or C1-C5 alkyl or may form heterocyclic rings with the N; X is -S-, -SO-, -SO2- or -[(R<5>)C(R<6>)]n-; R<4> and R<6> are H, aryl, or C1-C4 alkyl, and n is 0 to 3; and their acid salts, are effective as fade-inhibitors in one- and two-component diazotype materials. They compare favorably with known fade-inhibitors as regards effectiveness, compatibility, absorption range, fogging, and ease of synthesis.
Patent GB-2087354-A (GB)
Title: Packaging coils of wire or cable
IPC: B65D85/04
Filed: 1981-11-19
Abstract: In the manufacture of a stackable coil package, a cardboard blank is folded to form a closable carton 1 having a pair of oppositely disposed major side walls 2 lying in parallel planes, each of which major side walls has an aperture 5 in axial alignment with the aperture of the other major side wall. A coil of wire 9 is fed into the carton 1, such that the coil bounds the apertures 5 in the major side walls 2 and, after the carton has been closed and the coil centred at station 21 by radially movable cylinders 30, a preformed rigid hollow hub 6 is introduced into the apertures at station 22 such that the hub extends between, and protrudes beyond the outer surfaces of, the major side walls. The protruding end parts 8 of the hub 6 are then distorted at station 23 in such a way and under such a pressure from presses 28, 29 that the distorted protruding end parts bear against the outer surfaces of the major side walls and the major side walls are pressed inwardly to such a dish-like shape that no part of the hub protrudes beyond planes containing the boundary edges 4 of the major side walls. <IMAGE>
Patent GB-2088863-A (GB)
Title: Novel Alkyl-polyoxyalkylene Carboxylate Surfactants
IPC: C09K23/42
Filed: 1981-11-24
Abstract: Novel alkyl polyoxyalkylene carboxylates are the products of reacting a straight chain C6-22 alcohol with ethylene oxide, then with a higher alkylene oxide (preferably propylene oxide), optionally followed by a further reaction with ethylene oxide, and carboxyalkylating the resulting alkoxylate. Alternatively the alcohol may be reacted with higher alkylene oxide, then ethylene oxide, then carboxyalkylated. The products have a good combination of surfactant properties, and may be incorporated into detergent compositions.
Patent GB-2089219-A (GB)
Title: Wooden racket frames
IPC: A63B49/02
Filed: 1981-12-01
Abstract: A wooden racket frame comprises a head-portion (10), a handle-portion (11) integrally formed therewith, reinforcing members (12,13,14) and a throat-piece (15). At least the throat- piece (15) is made of a cellular plastics material, which may comprise a polyurethane foam or a polymethacrylimide foam. The use of a plastics material for the throat-piece results in an overall decrease in weight of up to 12 g when compared with an "all-wood" frame. <IMAGE>
Patent GB-2098286-A (GB)
Title: Hub clutch for use in vehicle four wheel drive
IPC: B60K23/08
Filed: 1982-01-07
Abstract: Engagement hub 1, splined at 3 to axle end, is selectively clutched to drive wheel hub 9, by ring 16 which is toothed to slide in internal grooves in wheel hub 9, merely by engaging four wheel drive. The transmitted torque causing balls, engaging axial grooves in hub 1 and race 22, to be carried axially by a cage 27 having camming recesses. The resulting axial movement of race 22 being transmitted to ring 16 by biconical springs the ensuing leftward movement of ring 16 causing internal clutch teeth to engage with external clutch teeth of engagement hub 1. Wheel hub 9 is supported on the axle by an inwardly directed flange 8 engaging a bush (7) mounted on the hub 1. <IMAGE>
Patent GB-2092165-A (GB)
Title: Polysocyanate wax dispersions and their use in the manufacture of sheets or moulded bodies
IPC: C08G18/70
Filed: 1982-01-08
Abstract: An organic polyisocyanate composition contains from 99 to 60 parts by weight of a liquid organic polyisocyanate and from 1 to 40 parts of a 90:10 to 10:90 mixture of a wax and a liquid ester having a molecular weight of at least 250, for example an alkyl ester of an aliphatic carboxylic acid derived from an alkyl alcohol containing from 3 to 30 carbon atoms and a saturated or unsaturated fatty acid containing from 10 to 25 carbon atoms. The composition is useful for the manufacture of sheets or moulded bodies by the hot- pressing of a lignocellulosic material and promotes release of the material from the press. The composition is preferably applied in the form of an aqueous emulsion.
Patent GB-2095141-A (GB)
Title: Protecting machine tool slides and guides
IPC: B23Q11/08
Filed: 1982-03-16
Abstract: An arrangement for screening the slide and guide rails in machine tools consists of two outer troughs 20 and 21, having inner walls 33 and 34 respectively which are secured to the slide and guide rails 30, and outer walls 35 and 36 respectively which extend upwardly to the surface of the slide 2. Located between the slide and guide rails 30 is a central trough 23, the walls 38 and 39 of which bear against the inner lateral faces of the rails and are extended upwardly beyond them by screening elements 42 and 43 which, each cover a respective guide rail. The slide 2 is supported on the slide and guide rails 30 by means of support element 24 and by way of bearing elements 26. Since these support elements 24 extend below the drip walls 46 and 47 of the screening elements 42 and 43 respectively a pronounced curve is formed, and this prevents cooling and lubricating fluid from flowing along the support elements to the bearing elements 26. <IMAGE>
Patent GB-2120047-A (GB)
Title: Radio receivers and broadcasting network
Inventor: EDWARDSON STANLEY MAKINSON
IPC: G08G1/09
Filed: 1982-04-28
Abstract: In order to provide correct automatic tuning of a VHF radio receiver 10 such as a car radio to the correct frequency in any area, an associated Traffic Information Service receiver 15 also detects a code indicating the area where the receiver is located. This code and a code indicating the programme selected on push buttons 13 by the user address a ROM 18 which stores the programme frequencies for all areas. The selected frequency enables an automatic tuning circuit 11 to tune the receiver 10. The ROM can be replaced by a RAM which is automatically updated by transmitting the frequencies or frequency codes (channel numbers) plus the programme labels and area codes on the TIS wavelength. Alternatively the frequency and label information for updating the RAM can be derived from the main receiver 10. <IMAGE>
Patent GB-2102394-A (GB)
Title: Processing apparatus for a paper sheet bundle with a tape wound therearound
Inventor: OHMURA HIDEO
IPC: B02C18/22
Filed: 1982-06-15
Abstract: Provided is a processing apparatus for a paper sheet bundle (P) with a tape wound therearound. The bundle is carried one by one into a bundle receiving section (21) provided in the apparatus. In the bundle receiving section (21) the bundle is retained by a vertical stop member (50) and the tape around the bundle is cut by a knife member (86) of a tape cutting mechanism. During this period of time, an urging roller (54) is pressed against the upper surface of the bundle so as to keep the bundle in its retained position. The paper sheets of the untied bundle, from a lowermost one thereof, are sequentially delivered from the receiving section and, at the section of shredder rolls (56, 57), are cut into fine pieces to destroy their paper value. The paper pieces thus produced are accumulated in a receiving chamber (15) located in the lower part of the apparatus. <IMAGE>
Patent GB-2104446-A (GB)
Title: Reflective material
Inventor: GEORGE LYNDON JAMES
IPC: B32B27/12
Filed: 1982-07-07
Abstract: A sheet material, for use for example in a screen, windbreak or deck-chair, comprises a fabric having applied to at least one face thereof a coating or layer of a material reflective to radiation at least in the ultra-violet wavelength range and preferably in the infra-red wavelength range also. The fabric may be a woven polypropylene or polyethylene film to which is bonded a metallised polyester or polypropylene film, and an intermediate foam layer may be provided. Bonding may be effected by calendering after flame bonding or infra-red heating by hot calendering.
Patent GB-2107428-A (GB)
Title: Variable capacity flywheel mechanism
Inventor: NAKANO YOSHIKATSU
IPC: F16H33/02
Filed: 1982-09-29
Abstract: A variable capacity flywheel mechanism for an engine employs a main flywheel 5 coupled to the engine crankshaft 1. An auxiliary flywheel 14 is connected to the main flywheel by means of an electromagnetic clutch 7, and the clutch is actuated in response to a magnetizing signal in accordance with r.p.m. of the crankshaft. The auxiliary flywheel may also be used for driving a magneto or a pump. The electromagnetic clutch may comprise a friction-type clutch or a powder-type clutch. <IMAGE>
Patent GB-2130799-A (GB)
Title: Structural member for radar apparatus
Inventor: GALLAGHER JOHN GERARD
IPC: H01Q1/42
Filed: 1982-11-18
Abstract: A strut 120 used in forming a framework for a geodesic radome or other radar apparatus has a constant cross-section and longitudinally disposed wires arranged to match the member dielectrically to free space at the radar frequency of the apparatus. The dielectric match ensures that the member 120 is substantially transparent to radiation of the relevant frequency, and avoids the problem of a radar antenna being masked by the strut members. The framework so formed may be covered by a plastics skin to form a radome. The struts may have rectangular, L-shaped or annular cross-sections. <IMAGE>
Patent GB-2116780-A (GB)
Title: Dynamo-electric machine
Inventor: ENDEAN DR VIVIAN GEOFFREY
IPC: H02K51/00
Filed: 1982-04-02
Abstract: A dynamo-electric machine comprises a direct current machine with two wound rotors. One (1) of the rotors is fitted with an input shaft (12) and the other is fitted with an output shaft. The rotors are located near each other and in a common magnetic circuit provided by system of field windings (3) and magnets. The two rotor windings and the field windings are electrically connected to each other through electrical connection devices, of which one (4) is located on the input shaft (12) and the other is located on the output shaft. These electrical connection devices are associated with brushes (5) which may be movable or adjustable and which bear on the electrical connection devices. Associated with the machine is an electrical circuit which enables current generated by the action of one (1) of the rotors relative to the field to provide energisation for the other rotor, which acts as a motor in conjuction with the field.
Patent GB-825398-A (GB)
Abstract: 825,398. Rotary engines &c. PARODI, E. June 11, 1958 [June 12, 1957], No. 18611/58. Class 110 (2). In a rotary gear pump or engine a gear 3 meshes at A and B with a flexible internallytoothed member which may be guided in a substantially elliptical path. The member 2 may also be in the form of a chain. When the machine is driven in the direction of arrow C, the working fluid enters through the ports 4 and 4<1> and is expelled through ports 6 and 6<1>.
Patent GB-2135429-A (GB)
Title: SME controlled valve
Inventor: ROBINSON GEOFFREY
IPC: A47J27/09
Filed: 1983-02-19
Abstract: A pressure cooker has a temperature responsive device controlled by an operating member of shape memory effect (SME) material 26. The device may be a pressure regulator valve, an air vent valve or a pressure relief valve. <IMAGE>
Patent GB-2138025-A (GB)
Title: Silver-coated electric materials and a method for their production
Inventor: SHIGA SHOJI
IPC: C25D5/10
Filed: 1983-04-13
Abstract: A silver-coated electric material is described wherein a partial or total surface of an electroconductive or non-electroconductive substrate is provided with a coating of silver or silver alloy, having a first intermediate coating layer made of Ni, Co, Cr, Pd or their alloys and the second intermediate coating layer made of Sn, Cd, Pd, Ru or their alloys between the silver coating and the surface of the substrate. A method for the production of the material is described which comprises successively depositing the layers by electroplating.
Patent GB-2139545-A (GB)
Title: A device for increasing the effective length of a handle of a tool, e.g. garden shears
Inventor: NICHOLSON THOMAS LESLIE
IPC: B25G1/04
Filed: 1983-05-11
Abstract: A transversely ribbed plastics strip 26 extends around the slotted portion of a tube 12 and passes through a guide 30 which is shaped to fit around part of the tube. A threaded nut 32 is screwable onto the free ends of the ribbed strip 26 which are separated by a spacer forming part of the guide. By rotating the nut 32, the ends of the strip 26 are drawn through the guide 30 and the strip deforms the upstanding portions 24 inwardly. In use, the handle of a tool is placed in the slotted end of the tube 12 and the nut 32 is rotated to deform the upstanding 12 portions 24 which grip the handle of the tool. Thus, the effective length of the tool is increased. The lower portion of the tube is provided with towelling 14 which affords a good grip. <IMAGE>
Patent GB-2127391-A (GB)
Title: Method of making oxide films
Inventor: STALL RICHARD ALAN
IPC: C01F7/42
Filed: 1983-09-20
Abstract: Oxide (RmOn) films are grown by evaporation from separate solid sources of element (R) and an oxide (MrOs) which serves as the oxygen source. The oxide (MrOs) should sublimate congruently; i.e., without decomposing into oxygen and its constituent element (M). On the growth surface this oxide (MrOs) can react with the element (R) to form another oxide (RmOn) that is thermo- dynamically more stable:  mR + MrOs --> RmOn + MrOs-n Using this technique, films of Al203, MgO, SiO2, and MgAl2O4 have been grown using As2O3 or Sb2O3 as the oxygen source.
Patent GB-2130571-A (GB)
Title: A method for treating polluted liquid effluents
Inventor: SIMOND JACQUES
IPC: C02F1/04
Filed: 1983-10-18
Abstract: A method for treating polluted liquid effluents includes spreading the effluent to be treated through a heap of slag composed of the solid residues from the incineration of household refuse.
Patent GB-2149674-A (GB)
Title: Game apparatus
Inventor: STANCILL ROGER
IPC: A63F3/00
Filed: 1983-11-15
Abstract: The apparatus comprises a game board defining a triangular playing surface having a number of triangular playing areas (26, 27 etc.) formed thereon and a plurality of hexagonal playing areas each formed at the common apex of six of the triangular areas, the smaller triangular areas within each hexagonal area being marked with a number from one through six. Plural sets of distinguishable playing pieces (64, 66) and dice are also provided. Two players compete by alternately rolling the dice and by a combination of chance and skill seek to move a minimum of seven playing pieces across the board. A frame (78) may be attached to the playing surface and a cover (90) may be hingedly attached to the frame. <IMAGE>
Patent GB-2150193-A (GB)
Title: Secondary glazing of corrugated roof lights
Inventor: MEACHAM ROBERT KEITH
IPC: E04D13/03
Filed: 1983-11-25
Abstract: A secondary glazing panel 12 for use with established corrugated glazing 11 to provide a double glazed area comprises a main glazing area 13. Two raised corrugated lateral ribs 16 and 17 have corrugations 18, 19 arranged to correspond with the corrugations of sheet 11. Two raised longitudinal ribs 23 and 24 extend along the other edges of the panel and are each aligned with troughs in the corrugated lateral ribs so that in use they are aligned with downward projections of the sheet 11. The main glazing area has stiffening ribs 14 and 15. Projections such as 25 of rib 23 extend below the level of main glazing area 13 and terminate in flanges such as 27. Secondary panels 12 are secured to the corrugated glazing 11 by adhesives applied to the ribs. Flanges 27 assist in providing sealing between adjacent panels. Self-adhesive pads may hold the secondary glazing panel in position while the sealant/adhesive sets. <IMAGE>
Patent GB-2136292-A (GB)
Title: Photograph Filing Cabinet
Inventor: FRANK PETER
IPC: B42F7/14
Filed: 1984-02-20
Abstract: A plastics cabinet 1 has a drawer receiving part 2 with an open side receiving a single drawer 3. Drawer 3 has removable indexing sheets 4 pivotable about pivot points 3c to 3i, and photographs can be located in the drawer between sheets 4 (only one shown in Figure 4). Inclined face 3j'' engages stop edges on the sheet 4 to limit the angle of pivoting of the sheets. The cabinet 1 is generally of cuboid form and has its four vertical sides provided with means to display any of the photographs contained in the drawer 3. Perspex cover sheets P' snap engage with the display means on the vertical sides to cover and protect photographs mounted on the sides. <IMAGE>
Patent GB-2177243-A (GB)
Title: Data recording technique and apparatus therefor
Inventor: ROWLEY GWYN
IPC: G06Q30/00
Filed: 1984-03-28
Abstract: A data recording technique (for market surveys etc.) comprising recording, in an electronic memory of a portable apparatus, data obtained in the field, the operator entering the data, in an encoded, computer readable form, as data becomes progressively available to the operator, the portable apparatus comprising an electronic storage device; a user definable input means whereby data is entered into the electronic storage device: means to transfer electronically data held in the storage device to an external electronic computer: and electronic circuitry and software to manage operation of the apparatus. The technique is more efficient than recording manually on sheets etc. <IMAGE>
Patent GB-2160068-A (GB)
Title: Alarm cap
Inventor: FAHEY CHRISTOPHER
IPC: H04M1/22
Filed: 1984-04-03
Abstract: A hollow cover button has a raised edge. Made of illuminable plastics it could be used on telephones for emergency calls. The button could be located easily by touch because of the raised edge and could also be seen in the dark. Dimension 1 cm square by 1/2 cm high. <IMAGE>