baber/WOPTO huggingface dataset:
Patent GB-2055869-A (GB)
Title: A polyurethane elastomer and a method of bonding said elastomer to metal
IPC: C08G18/72
Filed: 1980-07-11
Abstract: A polyurethane elastomer is obtained from a rapid curing mixture comprising specified proportions of (1) a liquid prepolymer formed from specific proportions of (i) diphenylmethanediisocyanate in admixture with carbodiimide-modified diphenylmethanediisocyanate and (ii) a polytetramethylene glycol of specified molecular weight or a mixture thereof with an aliphatic diol and (2) a curing agent comprising said polytetramethylene glycol, a diol and an organometallic catalyst. Rapid curing of the mixture occurs at room temperature. The polyurethane elastomer can be bonded to metal by coating the metal with a primer prepared by adding a strong acid to an organic solvent solution of a polyvinyl acetal resin modified with a formaldehyde condensation thermosetting resin, forming the abovementioned rapid curing mixture and applying it to the primer coated metal while the mixture is curing to bond the resultant polyurethane elastomer to the metal.
Patent GB-2046721-A (GB)
Title: Cap for container producing a gas pressure
IPC: B65D41/04
Filed: 1979-11-06
Abstract: The cap comprises two sealing rims (5, 6) the length (h) of which exceeds the mutual distance thereof (a). When the cap is applied to the neck (2) of the container, the rims are readily folded upwardly. The end of the lower rim (6) engages into a space (13) which is defined by the lower surface (14, 14') of the rim (5) before and after the deformation thereof and by the wall of the neck (2). When a gas pressure occurs the upper rim (5) fills up further so that it bears against the end (12) of the lower rim and is supported thereby. Ence, a perfect sealing is provided without having to make a big effort to unscrew the cap.
Patent GB-2065912-A (GB)
Title: Improvements in or relating to a method of and device for embedding dehydrated tissue specimens in paraffin
IPC: G01N1/36
Filed: 1980-08-05
Abstract: Dehydrated tissue specimens are immersed in liquid paraffin wax in container 10 which is evacuated by vacuum pump. The maximum vacuum is only achieved after a predetermined period of time, determined by a controller which can control the speed of the motor of the pump. Thus any dehydration medium, e.g. acetone, in the specimen will be sucked off at a low pressure minimising the risk of bubbles forming in the sample or in the paraffin. The paraffin wax is heated by water bath 16. <IMAGE>
Patent GB-2085096-A (GB)
Title: A Radial Gasket
IPC: F16J15/32
Filed: 1980-10-07
Abstract: A gasket for sealing against axially moving shafts, has a sealing lip 28, the external surface 38 of which, submitted to fluid pressure, forms an angle with the shaft generatrix which is substantially equal to 90 DEG  when the gasket, fitted up on the shaft and stressed by the same, is in its working condition. In its free condition the external surface 38 subtends an angle exceeding 60 DEG  at the axis of the gasket. One of the radial faces of the gasket is provided with two sealing lips 46, 44 which, in use, co-operate with a housing through which the shaft passes. A spring is housed in the groove 42 in use of the gasket. <IMAGE>
Patent GB-2063052-A (GB)
Title: Deboning apparatus and method
IPC: A22C17/04
Filed: 1980-11-10
Abstract: In a meat deboning machine of the type described in U.S. Patent 4042176 wherein bone-laden meat material is fed into one end of a foraminous or perforated cylinder in which an auger rotates to extrude meat through the foramina while bone particles and other non-extruded materials exit through a generally frusto-conical, back pressure creating, discharge orifices formed between generally frusto-conical surfaces (31, 32), one or both said surfaces are provided with circumferentially spaced, generally radially extending grooves (33, 34) therein, or raised spines thereon, which function to reduce the size of larger bone pieces so that they do not plug the discharge orifice. <IMAGE>
Patent GB-2088231-A (GB)
Title: Improvements in filter cloths for filter presses
IPC: B01D25/176
Filed: 1980-12-02
Abstract: In order to overcome the problems of fitting filter cloths 1, 2 on opposite sides of a filter press 3 the cloths are secured to respective annular members 8, 9 which are constructed to connect releasably together in the manner of a snap fastening. The members then define a passage through plate 3 for material to be filtered. Cloths 1, 2 may be separate cloths or two halves of a single cloth folded over the upper edge of the plate.
Patent GB-2092875-A (GB)
Title: Improvements in or relating to soil sterilisation systems
IPC: A01G11/00
Filed: 1981-02-17
Abstract: A soil sterilisation system has a thermally insulating cover 1 for laying over a support frame of bars 3 to provide a closed space to which steam may be pumped via pipes 7. <IMAGE>
Patent GB-2094681-A (GB)
Title: Bending
IPC: B21D7/06
Filed: 1981-03-18
Abstract: Apparatus for and method of bending a channel section workpiece 9, for example a vehicle chassis side member, the bend or bends being in the plane of the flanges of the channel, wherein interior and exterior faces of said flanges are engaged between closely fitting inter-acting formations 13, 14, 15, 18, 19 while bending forces acting in said planes are applied by relative displacement of co-acting sections of said formations to longitudinally spaced portions of the member, said flanges being kept planar by said engagement. <IMAGE>
Patent GB-2094667-A (GB)
Title: Plain bearing and method of making same
IPC: F16C33/12
Filed: 1981-03-18
Abstract: A plain bearing, for example a pad for a tilting pad bearing, comprises a steel backing, an aluminium bronze layer sprayed on to the backing, and a plastics bearing layer applied to the aluminium bronze. The plastics bearing material can be polytetrafluoroethylene, polyphenylene sulphide or polyetheretherketone.
Patent GB-2098925-A (GB)
Title: Laminated panel
IPC: E04C2/284
Filed: 1981-05-19
Abstract: A prefabricated panel for use in the construction of buildings includes an inner core 10 sandwiched between a pair of plywood sheets 11, the inner core consisting of rock wool having its fibres orientated transverse to the plywood sheets, and the plywood sheets being adhesively bonded to steel skins 12 faced with a plastics material 13.
Patent GB-2100581-A (GB)
Title: Bag for packaging animal's droppings etc.
Inventor: RUTHERFORD DAVID ALEXANDER
IPC: E01H1/12
Filed: 1981-06-19
Abstract: A bag for packaging animal's droppings etc is provided with a scraper attached to its base. The bag is flexible, watertight and large enough to fit over an adult hand. The scraper is stiff but small enough to fit comfortably inside the bag with part of the scraper extending through the base of the bag. The bag hygienically separates the operator's hand from the scraper's cargo. By turning the bag inside-out, it surrounds the scraper and cargo for hygienic disposal. The bag may be used to dispose of animal faeces, vomit, spilt food etc. It may be easily carried in a pocket or a handbag. <IMAGE>
Patent GB-2103452-A (GB)
Title: Telephone subscriber's apparatus
Inventor: BLOMLEY PETER FRED
IPC: H04M1/60
Filed: 1981-08-06
Abstract: In a telephone instrument, especially when using modern transducers such as electret devices or moving coil devices, it is desirable to have a volume control which is manually adjustable. This is done by a resistive network (9, 10, 11, 12) between the microphone wires and one of the id receiver wires which is grounded. This network is preferably at the handset. At the instrument body the inputs to the transmitter preamplifier (3) are connected via similar resistor to a common mode amplifier (8) the output from which goes to a multiplier (7). The multiplier (7) varies the gain of the audio signal according to the output from the common mode amplifier (8), which in turn is controlled by the variable resistor (9) in the resistive network. The output of the multiplier (7) goes to the input of the final receiver amplifier (6). <IMAGE>
Patent GB-2103737-A (GB)
Title: Disc brake pad lining wear sensor
Inventor: BEILLEAU ROBERT
IPC: F16D66/02
Filed: 1981-08-08
Abstract: A disc brake pad lining wear sensor 24 comprises a sheet metal shim 26 which is retained in contact with a surface of a disc brake pad 14 remote from the surface of the pad carrying a brake lining 16, the brake pad 14 being suspended upon guide pins passing through aligned apertures 34 in the brake pad 14 and apertures 28 in the sheet metal shim 26. The sheet metal shim 26 has at least one finger-like portion 30 extending from an edge thereof, which finger-like portion 30 is bent over relative to the plane of the sheet metal shim 26 so that the free end 32 of the finger-like portion 30 lies in a plane extending at an obtuse angle to the plane of the sheet metal shim 26 and will make contact with a brake disc when the lining 16 thereof is worn down to a thickness at which it should be replaced, to cause the portion 30 and shim 26 to vibrate to produce a distinctive warning noise. <IMAGE>
Patent GB-2083428-A (GB)
Title: Anchors
IPC: B63B21/32
Filed: 1981-08-25
Abstract: An anchor having a shank member (1) with an elongate limb (3) extending from a cable attachment point (2) and turning into a shorter limb (4) rigidly secured to a plate-like fluke member (5) symmetrical about a plane containing the shank member to diverge from the elongate limb, has its fluke member (5) shaped with four flukes (6, 7, 8, 9) extending forwarding in such an array that their foremost points (10) lie substantially within one-third of a circle (11) having its centre (12) in the elongate limb (3) of the shank member (1), with the medial lines (13) of the inner flukes (7, 8) substantially straight, and with the medial lines (14) of the outer flukes (6, 9) convex and diverging from each other, so that the anchor screws itself into any mooring bed until its plane of symmetry is substantially vertical, regardless of how the anchor makes first contact with the bed. <IMAGE>
Patent GB-2106977-A (GB)
Title: Vanity case
Inventor: YUHARA YUKITOMO
IPC: E05C19/06
Filed: 1981-09-10
Abstract: A vanity case is provided which comprises a receptacle (1) and cover member (2), a cavity (5) formed in one of the members and a slider element (14) slidably inserted at its inner portion into the cavity. The slider element (14) has an enlarged outer portion (14c) and is so arranged that when the slider element is pushed inwardly, the enlarged outer portion exerts a force so as to release a snap engagement of the cover member (2) with the receptacle member (1). An elastic piece (16) formed integrally with the slider element urges the latter outwardly along the cavity (5). <IMAGE>
Patent GB-2100175-A (GB)
Title: Apparatus for use in moulding articles of foamed plastics material
IPC: B29C39/00
Filed: 1981-09-14
Abstract: Apparatus for use in moulding articles from foamed plastics material comprises a mould (1) in which the constituents are placed, the mould (1) having an upper wall or lid provided with perforations (3) and a cover member (4) is in sealing contact with the upper wall or lid and defines therewith a chamber (5), which is connected via a conduit (9) and valve (10) to a piston and cylinder device (13) which is used to control the pressure in the chamber (5) and mould (1) to a predetermined valve during foaming so that the resultant product has desired characteristics. <IMAGE>
Patent GB-2084683-A (GB)
Title: A clutch release bearing assembly mounted for movement along a guide member
IPC: F16D23/14
Filed: 1981-09-18
Abstract: The invention discloses a clutch release bearing assembly (10) mounted for movement along a guide member (11), the assembly and the guide member having radially opposed surfaces (22, 23) contacting each other only at two or more circumferentially spaced locations (24) when the radially opposed surfaces are disposed on a common axis. The assembly (10) includes a sliding sleeve (12) made of an elastic vibration- and noise-damping material and having three protuberances (24). Alternatively, the inner race ring of the bearing may directly contact protuberances of the guide member, the latter being a hollow tube of polygonal cross-section coated with a low friction material. <IMAGE>
Patent GB-2088147-A (GB)
Title: Device for reopening an installed cable joint
IPC: H02G15/18
Filed: 1981-09-30
Abstract: A device for reopening installed cable joints in a sheath jacket 3 comprises a separating thread 5 extending along the joined cables 1,2. After the sheath 3 has been heated along the vicinity of thread 5, its free end 6 is pulled to rip open the sheath 3 to expose the cable connection. The sheath may consist of two interengaging parts each with two cables leading to and from an internal electronic connector. A different separating thread may be provided along each cable for ripping the associated sheath part in half. The thread is preferably steel and may have a lenticular cross-section with sharp edges extending along the sheath equidistantly from its inner surface in which the thread may be embedded in an adhesive layer on that surface. <IMAGE>
Patent GB-2096214-A (GB)
Title: Portable road markers
IPC: E01F9/619
Filed: 1981-10-16
Abstract: In a method of providing a reflective surface on a portable traffic bollard of conical or cylindrical form, a length of adhesive-backed reflective tape (14) is wound onto the bollard (2) in helical or annular fashion, the tape being sufficiently flexible (as defined in the specification) to bend in its own plane without wrinkling. One form of apparatus for applying the tape comprises a hub (32) bearing a roll of tape (14) and a contact roll (40) for applying it to the bollard surface. The tape (14) is normally maintained under tension as it is applied by a brake shoe (25). The bollard is mounted on a support for rotation as the tape (14) is applied and provision is also made for relative axial movement of the bollard and hub as necessary to ensure creation of the desired design. As an alternative to the tape- winding technique a reflective sheet blank is provided on its reverse surface with a pressure sensitive adhesive defining a grid pattern. Once roughly located on the bollard, the grid pattern permits the blank to be shifted before pressure applied on the grid areas finally secures the sheet in place. <IMAGE>
Patent GB-2111035-A (GB)
Title: Treatment of sand
Inventor: LAVENDER MICHAEL DAVID
IPC: C03C1/02
Filed: 1981-11-24
Abstract: A process for treating sand includes one or more stages in which the sand is subjected to mechanical attrition in the presence of zinc or sodium hydrosulphite and an acid selected from sulphuric acid and hydrofluoric acid at a solids content of at least 70% by weight and preferably at least 80% by weight. The process improves the overall efficiency of sand purification and may be used to purify sand to the high grade silica sand specification required for the preparation of colourless glass.
Patent GB-2090870-A (GB)
Title: Nickel-Iron Alloy Electroplating Bath and Rejuvenation Thereof
IPC: C25D21/18
Filed: 1982-01-12
Abstract: An aqueous bath for the electrodeposition of bright, high- levelling nickel-iron alloy deposits on a conductive substrate comprises nickel ions, iron ions, an iron solubilizing agent, a buffering agent, a brightening agent, hydrogen ions to provide a pH of about 2.6 to 4.5 and one or more bath soluble additive agents having the structural formula:   <IMAGE>  wherein:  R is H or a C1-C4 alkyl group,  n is 0 to 4,  m is 0 to 1, and  X is H, NH4<+> or a bath compatible metal atom. The additive agent I reduces the sensitivity of the bath to organic contaminants such as oils, greases and organic degradation products of the bath additives used. Used nickel-iron alloy plating baths can be rejuvenated by adding an additive agent of formula I.
Patent GB-2118110-A (GB)
Title: Spoked wheels
Inventor: MCLEAN IAN STUART
IPC: B60B1/04
Filed: 1982-02-12
Abstract: A wheel has an aluminium or aluminium alloy rim which is connected to a hub by means of a series of tensioned spokes. Each spoke has an enlarged head portion which engages the hub and a threaded end portion which engages a spoke nipple extending through and engaging the periphery of a hole in the rim. The spoke nipples have a head portion which is tightened against the rim in order to adjust the tension of the spokes. The portion of the nipples which engage the rim or the opposed surface of the rim are coated with a solid lubricant, so that by tightening the nipples to a pre-determined torque, an adequate and substantially uniform tension may be applied to each spoke.
Patent GB-2116074-A (GB)
Title: Printable autoadhesive tapes
Inventor: PINA FELICE
IPC: C09J7/22
Filed: 1982-02-24
Abstract: Autoadhesive printable tapes comprise supporting member consisting of a polymer, in particular polypropylene, the non-adhesive surface of the supporting member coated by a laquer including polymers or resins having a good adhesion to the supporting film, good antiadhesive properties and a very good receptivity with respect to the inks used in printing. Examples of such polymers and resins are: copolymers of acrylic or methacrylic esters with alcohols, polyurethane resins, laquers including modified cellulose ethers and esters, polyamide copolymers and cellulose ester modified polyamide copolymers.
Patent GB-2099665-A (GB)
Title: Dividing circuits
IPC: H04H1/00
Filed: 1982-04-05
Abstract: A dividing circuit for dividing a received amplitude modulated stereo signal by a distortion correcting signal cos  phi  including a first differential amplifier 20 comprising first and second transistors 21, 22, the bases of the transistors 21, 22 being supplied with the received AM stereo signal, at least one transistor 27 for supplying the distortion correcting signal to either the emitters or the collectors of the first and second transistors 21, 22, at least one diode 29, 30 respectively connected between the collector of the first transistor 21 and a reference voltage source and between the collector of the second transistor 22 and the reference voltage source, a respective current source 37, 38 connected in parallel with each diode 29, 30 for maintaining the emitter resistances of the transistors 21, 22 at a small constant value, and a second differential amplifier 31 connected in cascade with the first differential amplifier 20 for producing the divided output signal of the dividing circuit. <IMAGE>
Patent GB-2098413-A (GB)
Title: Improvements in gripping or locating devices
IPC: H01R13/58
Filed: 1982-05-10
Abstract: In a pair of jaws 1, 2 for locating or gripping an elongate member 6a such as a cable in an electrical coupling each of the jaws has an elongate member-receiving portion 7, 8, respectively, in a face 9, 10, which faces, in use of the jaws, confront one another with the portion 7 in the jaw 1 opposite the portion 8 in the jaw 2. To enable the pair of jaws to grip or locate elongate members 6a of different sizes, the surface 16a, 17a of a portion 7, 8 of at least one of the jaws 1, 2 is resiliently yieldable. <IMAGE>
Patent GB-2122887-A (GB)
Title: Door furniture
Inventor: JAMES MICHAEL JOSEPH
IPC: E05B3/06
Filed: 1982-07-03
Abstract: A lever handle assembly comprises a door mounting portion 1, moulded in the form of a handleplate with screw-fixing holes, and a lever handle component 4. The handle 4 is rotatably mounted in a through aperture 6 in the mounting portion 1, and a radial flange 7 at the inner end of the shank 5 of the handle 4 takes a bearing within the portion 1 and engages the inner edge 10 of an internal circular wall 11 to locate the handle 4 against an outward pull. Around the aperture 6 the portion 1 is moulded with an outwardly projecting and curved lip 12 having a flat outer end face 13 engaging behind a rectangular step 14 on the shank 5. This engagement locates the handle 4 in the opposite or inward direction, and thus serves to retain the components in the assembled condition. The lever portion 15 of the handle is so shaped and dimensioned, as is the shank 5, that on assembly the handle can be threaded through the aperture 6 from the inner side of the portion 1 until it reaches the assembled position. During the assembly the lip 12 flexes outwardly to clear the maximum diameter of the shank 5 and then springs back to engage behind the step 14. <IMAGE>
Patent GB-2107404-A (GB)
Title: Centrifugal pump and turbine set
Inventor: MUNCH HELMUT
IPC: F04D13/04
Filed: 1982-10-07
Abstract: The set, particularly for the desalination of seawater, has a pressurizing centrifugal pump 1 and, disposed on the same shaft, a Pelton turbine 2 and of an additional centrifugal pump 3 for returning the liquid discharged from the Pelton turbine to its place of origin, for example the sea. The pressurizing centrifugal pump 1, the Pelton turbine 2 and the return centrifugal pump 3 are all being disposed on a common shaft 4 in a common pressure envelope. <IMAGE>
Patent GB-2114472-A (GB)
Title: Slide valve control in a centrifugal separator drum
Inventor: STELLER HORST
IPC: B04B1/14
Filed: 1982-12-02
Abstract: A self-cleaning drum (1) for a centrifugal separator is provided with a hydraulically actuated, axially movable slide valve (2) and a control valve (7) for the control of the slide valve. The control of the slide valve is such that a trouble-free function is maintained during opening of the drum for discharge of solid substances. For this purpose the slide valve (2) is provided with an intermediate chamber (3) connected by inlet channels (4) to a closing chamber (5) and by an outlet channel (6) to the control valve (7), the volume of the intermediate chamber being determined by the quantity of fluid required for balancing of the forces arising in a separating space (8) and the closing chamber (5). The intermediate chamber (3) is disposed at the outer circumference of the slide valve (2) and the inlet channels (4) are so arranged relative to the closing chamber (5) that the fluid is fed into the intermediate chamber at a smaller radial spacing from the drum axis than a point of departure of the fluid from the intermediate chamber by way of the outlet channel (6).
Patent GB-2111604-A (GB)
Title: Shell spar cooled airfoil using multiple spar cavities
Inventor: HOLDEN PAUL CLARENCE
IPC: F01D5/18
Filed: 1982-12-07
Abstract: The airfoil (rotor or stator blade) comprises a hollow spar 12 partitioned into spanwise cavities 18a, 18b, 18c and an exterior shell 14 bonded to the spar. Substantially chordwise coolant passageways 16 are arranged between the shell and the spar to pass coolant from cavities designated as supply cavities 18a, 18c to cavities designated as exhaust cavities 18b; and the trailing edge 24 of the airfoil. The arrangement provides short, high velocity coolant passageways. <IMAGE>
Patent GB-2123515-A (GB)
Title: Method and apparatus for preventing corrosion in a pipe interior surface
Inventor: SAGAWA SIZUO
IPC: F16L1/00
Filed: 1982-12-31
Abstract: A method for preventing corrosion in a pipe interior surface utilizes a pig normally used for cleaning a pipe. A tubular synthetic resin film (6) is attached to a first pig (2) and is disposed in the pipe by running of the first pig through the pipe. The tubular film is then caused to adhere tightly to the pipe interior surface by running a second pig through the tubular film. An apparatus for carrying out this method comprises a pig launcher (3) and a drum unit (5) connected to the pig launcher and having a drum (5a) for winding the tubular synthetic resin film thereon. The method is simple and inexpensive and the protective film thus formed enjoys a long life for preventing corrosion in the pipe. <IMAGE>