baber/WOPTO huggingface dataset:
Patent GB-1278336-A (GB)
Title: Improved lens strip optical scanning system
IPC: G02B3/00
Filed: 1969-12-01
Abstract: 1278336 Photo-copiers; optical apparatus XEROX CORP 1 Dec 1969 [29 Nov 1968] 58587/69 Headings G2A and G2J In a photo-copying system, an object 14, Fig. 2, is placed on a transparent platen 12 and is illuminated uniformly over a strip of its surface. Light from the strip is collected by a lens strip 40 which comprises two parallel rows of lens elements 44, one row being displaced by half the distance between the lens centres in each row. The light then proceeds to a strip 41 of field lenses 46 and from there to a strip 42 of lenses 48 which produce a focused image of the object at unitary magnification on a photo-sensitive member 18. Field stops 52 of generally hexagonal shape, but with four sides having a sinusoidal form as shown in Fig.4 (not shown), are arranged at each field lens 46, as in Fig.2, and co-operate with aperture stops 50 to produce an illumination pattern in the final image plane 18 according to that shown in Fig.5. The degree of overlap is varied by varying the relative positions of the lens strips 40 and 42, and uniformity of light exposure at the final image plane 18 is achieved by moving the illumination and imaging systems at a uniform speed relative to the object 14 and final image plane 18. Such movement is provided for with a system described with reference to Fig.1 (not shown). The lens strips may contain only one row of lenses per strip and the intermediate strip 41 could be Fresnel lenses or merely translucent screens.
Patent GB-1271639-A (GB)
Title: Improvements in or relating to metal-semiconductor diodes
IPC: H01L29/00
Filed: 1970-12-14
Abstract: 1,271,639. Semi-conductor devices. SIEMENS A.G. 14 Dec., 1970 [15 Dec., 1969], No. 59251/70. Heading H1K. In a Schottky diode a conductive layer contacts the surface of the semi-conductor body through an aperture in a thin insulating layer which extends on to a thicker insulating layer surrounding the contact. The part of the contact extending over the thin insulating layer increases the breakdown voltage of the diode by redistributing the electric field at the edge of the contact. As shown, a high resistivity epitaxial layer 2 on a substrate 1 is provided with a thermally deposited layer 3 of SiO 2 , a first window 5 is etched in layer 3, a layer 4 of Si 3 N 4  is thermally deposited, a window 6 is etched in the layer 4 within the window 5, and a rectifying contact 7 of Al, Al-Ni alloy, or platinum silicide is deposited. The thin insulating layer 4 may comprise two. or more films, for example it may be formed by depositing a film of Si 3 N 4  on a film of SiO 2 . The semi-conductor material may be Si, Ge or GaAs.
Patent GB-1377999-A (GB)
Title: Pneumatic tyres
IPC: B60C11/03
Filed: 1971-12-21
Abstract: 1377999 Pneumatic tyre treads MICHELIN & CIE COMPAGNIE GENERAL DES ETABS MICHELIN 21 Dec 1971 [24 Dec 1970] 59524/71 Heading B7C A pneumatic tyre, e.g. a radial-ply tyre, has a tread provided in its central region with circumferential zig-zag rib 11 bounded by circumferential zig-zag grooves 16, 17, at least in the regions of the salient angles of the rib 11, the width of the rib 11 decreasing in the direction from the tread surface to the tyre axis and the effective width of each groove 16, 17 also decreasing in this direction because of the presence, adjacent to and separate from one or, as shown, both side walls of the groove, of an element 23 projecting from the base of the groove and decreasing in width in the direction from the tyre axis to the tread surface. The side walls of the rib 11 may make an angle of 10-20 degrees to the normal to the tread surface, and that side wall of each element 23 nearest the centre of the associated groove may make an angle of 10-30 degrees to the normal. There may, as shown, be two further zig-zag ribs 12, 13 each bounded on one side by a respective one of the grooves 16, 17 and on its other side by a respective circumferential zig-zag groove 18, 19 which has transverse extensions 20 leading to the adjacent edge of the tread.
Patent GB-1492937-A (GB)
Title: Enzyme complexes and their use
IPC: C12N11/08
Filed: 1973-12-28
Abstract: 1492937 6-Aminopenicillanic acid process BEECHAM GROUP Ltd 19 Dec 1974 [28 Dec 1973] 59978/73 Heading C2C [Also in Division C3] A process for the preparation of 6-aminopenicillanic acid comprises treating benzylpenicillin or phenoxymethylpenicillin or a salt thereof in aqueous solution at pH 6À0-9À0 with a water insoluble enzyme complex which comprises a penicillin acylase enzyme adsorbed on a water insoluble polymer substrate and crosslinked with glutaraldehyde, glyoxal, or formaldehyde, the polymer substrate being a polymer or copolymer of methacrylic acid, e.g. a copolymer of methacrylic acid and divinylbenzene, optionally including benzene sulphonyl groups (see Division C3).
Patent GB-1203709-A (GB)
Title: Process for the production of a laminated sheet material
IPC: D06N7/00
Filed: 1968-12-19
Abstract: 1,203,709. Laminates. KALLE A.G. 19 Dec., 1968 [21 Dec., 1967], No. 60421/68. Heading B5N. [Also in Division B2] A laminated sheet material is produced by applying a solution of high molecular weight plastics material to a liquid-and-gas permeable auxiliary sheet material, the surface of which has fine projections or depressions corresponding to embossments required on the surface of a laminate, precipitating the polymer on the auxiliary sheet material prior to, simultaneously with or subsequent to the application of a textile sheet material to the layer of plastics material, and separating the resultant polymeric, microporous layer from the auxiliary sheet material either together with an applied textile sheet material, or as such if the textile sheet material has not hitherto been applied, in the latter case the sheet material being applied to the unembossed surface of the separated polymer layer. The auxiliary sheet material may be a fine-meshed wire gauze which may be wetted prior to application of the plastics material with the liquid used for precipitation or with another substance acting as a separating and precipitating agent. The coating composition may contain fillers and/or pigments, e.g. cellulose powder, kaolin, titanium dioxide, polyvinyl chloride. The coating compositions may be polyester or polyether urethane solutions. As shown in Fig. 1, a coating composition 10 falls between a circulating sieve belt 11 and a fleece web 12 which pass together between a pair of rollers 14 with a lamination gap, into a liquid bath 13 for precipitation. The laminate is separated at 15 from the auxiliary supporting belt 11 and passes to a drying channel 16.
Patent GB-1223180-A (GB)
Title: Pump shaft mechanical seal start-up lubricating arrangement
IPC: F16J15/34
Filed: 1968-12-24
Abstract: 1,223,180. Cooling pump shaft seals. BORGWARNER CORP. 24 Dec., 1968 [22 Jan., 1968], No. 61457/68. Heading F4U. [Also in Division F2] The subject-matter of this Specification is substantially the same as that disclosed in Specification 1,223,179 except that (i) a clutch B is provided between the pump motor A and the pump C and (ii) the relay 75 for the control valve 70 in the injection circuit for supplying liquid to the seal faces 55, 56 during start-up is not a time-delay relay as in Specification 1,223,179 but is controlled by a pressuresensitive switch 83 so that the valve 70 is closed to discontinue supply of liquid when the pump pressure reaches a predetermined value. When the motor A is started the valve 70 is automatically opened and remains so until the clutch B is engaged and the pump pressure attains the predetermined value.
Patent GB-1292864-A (GB)
Title: Improvements relating to expandale, thermoplastic vinyl chloride-polymer compositions
Inventor: BOUTILLIER PIERRE EMILE
IPC: C08L25/04
Filed: 1969-12-30
Abstract: 1292864 Expandable vinyl chloride compositions UGINE KUHLMANN 30 Dec 1969 [30 Dec 1968] 63308/69 Headings C3C and C3P An expandable composition comprises a thermoplastic vinyl chloride polymer (A) and a resinous thermoplastic styrene-acrylonitrile copolymer (B) of mean viscosimetric molecular weight greater than 3 Î 10<SP>5</SP> but in any case higher than that of polymer (A) and being compatible with polymer (A), and a blowing agent. In examples, the compositions comprised polyvinyl chloride, a styrene-acrylonitrile copolymer, sodium bicarbonate, barium laurate and cadmium, an organic phosphite, paraffin and ozokerite waxes, sodium silico-aluminate acrylonitrile - styrene - butadiene copolymer, a chlorinated polyolefin and/or calcium stearate. The compositions were extruded to form expanded rods which were drawn. In Example 1, a styrene-acrylonitrile copolymer was made by polymerizing the monomers in an aqueous mixture of tetrapropylbenzene sodium sulphonate, potassium persulphate, sodium bicarbonate and optionally tetrapropylmercaptan.
Patent GB-2024665-A (GB)
Title: Spark plug electrode manufacture
IPC: H01T21/02
Filed: 1978-07-07
Abstract: A central electrode (7) for a spark plug is produced quickly and easily by forming a rod from a core of thermally conducting material, such as copper, and a sheath of refractory metal such as a nickel-chromium alloy, said sheath having an open end which projects beyond the adjacent end of the core, and spinning, peaning or otherwise mechanically working the end of the sheath to close the end around the core. <IMAGE>
Patent GB-2000968-A (GB)
Title: Killed trypanosoma vaccine and immunologically active components of trypanosoma
IPC: A61K39/005
Filed: 1978-07-11
Abstract: A process for producing killed Trypanosoma cruzi organisms suitable for use in a vaccine against Chagas disease comprises treating a suspension of from 1 x 10<6> to 6 x 10<9> Trypanosoma cruzi organisms per ml, with at least 0.5 % (g/v) of an acylating agent or of a mono- or dialdehyde having up to 6 carbon atoms excluding the aldehydic carbon atom(s). Trypanosoma may be subjected to a treatment capable of breaking the cell structure, whereby the imunologically active component(s) of the Trypanosoma are freed. These are isolated from the other cell constituents and may themselves be used in a vaccine.
Patent GB-2029201-A (GB)
Title: A device suitable for use in cleaning magnetic heads of magnetic tape recording and/or playback instruments
IPC: B25G1/06
Filed: 1978-08-21
Abstract: A device which is suitable for use in cleaning magnetic heads of magnetic tape recording and/or playback instruments comprises an elongate member B provided with a tape head cleaning pad 28 at one end and notches 14 at the other end, handle 31, and a part C provided with a projection which engages one of the notches, the arrangement being such that member B may be positioned at different angles relative to the handle. The pad may be covered by a protective cap 18 and may be mounted on a resilient C-shaped member D which snap-fits onto member B. In a modification, see Fig. 20, interengaging teeth and notches are provided on the contacting faces of members 34, 36, which are held in the desired position by means of a screw 39 located in internally-threaded bush 38. <IMAGE>
Patent GB-2004532-A (GB)
Title: Wet oxidation of waste liquor
IPC: C02F1/74
Filed: 1978-09-04
Abstract: A method for mixing pure oxygen, or an oxygen enriched gas, at high pressure, with waste liquor in a wet oxidation system, wherein the oxygen is mixed with pure water before it is mixed with the waste liquor.
Patent GB-2003754-A (GB)
Title: Powder coating apparatus for two-piece cans
IPC: B05B15/04
Filed: 1978-09-08
Abstract: An apparatus for the internal coating of a two-piece can body with a powder. Two-piece can bodies include a body and an end. A stream of powder is directed toward the corner between the end and the body in a circular path by rotating either the can body C or the powder dispenser so as to coat the end 52 of the can body. A recovery tube 46 is provided to draw the powder rearwardly out of the can body away from the end in a generally cylindrical path adjacent the interior wall of the body so as to coat the body with the powder. The powder is electrostatically charged by electrode 60 so as to adhere to the can body until such time as the powder may be suitably cured. <IMAGE>
Patent GB-2030020-A (GB)
Title: Optical receiver
IPC: H03F17/00
Filed: 1978-09-14
Abstract: A receiver for responding to a light beam, especially from an optical fibre light guide, includes a photo-diode which responds to the light of the beam, and which is connected to the input of an amplifier. The output current of the amplifier flows through a light-emitting diode and a resistor in series, with the output taken across the resistor. The light emitted by the light-emitting diode is received by a second photo-diode connected to the amplifier's input. Thus the light-emitting diode - photo-diode combination forms an optical isolator in the amplifier's feedback loop. This relatively simple circuit avoids difficulties inherent in known devices where, for instance resistors and capacitors may be in the feedback loop. <IMAGE>
Patent GB-2012875-A (GB)
Title: Gear Pumps
IPC: F04C15/00
Filed: 1978-10-30
Abstract: A gear pump has a housing (35) defining a pumping chamber in which a pair of externally-toothed gear elements (32, 46) are in mesh, one gear element (32) being in splined engagement with a drive shaft (30) which extends externally of the housing (35). An axially-directed face(s) of the shaft (30) is isolated from high pressure in the pumping chamber by a seal (36), thereby obviating a need for a thrust bearing for the shaft (30). The said face(s) is exposed to a relatively low pressure owing to e.g. connection of a drain passage (34) with a zone (41) encircling the drive shaft. <IMAGE>
Patent GB-2041437-A (GB)
Title: Hasp door latch
IPC: E05C17/16
Filed: 1979-01-30
Abstract: The hinged strap (10) of a hasp assembly (3) is mounted on the inside surface of a door (1) near its opening edge (20), which strap (10) is swingable between a position in the path of the door (1) to allow it to be opened a limited distance and a position retracted out of the door-opening path. The door (1) can be maintained in limited opening position by engagement of the hasp strap (10) with a pivotable bar (28) of a keeper assembly (4) attached to the door frame (2). With the strap (10) in the door-opening position rotated out of the path of the door (1), the pivotable bar (28) can be rotated from the position in which it engages the strap (10) for allowing the door (1) to be opened a limited amount to a position in the path of the door (1) to block any opening movement. <IMAGE>
Patent GB-2013682-A (GB)
Title: Derivatives of (-)-cis-1,2- Epoxypropylphosphonic Acid, Their Preparation, and Pharmaceutical Compositions Containing Them
IPC: A61P31/04
Filed: 1979-02-02
Abstract: Derivatives of (-)-cis-1,2- epoxypropylphosphonic acid ("phosphonomycin" or "Fosfomycin") having antibacterial chemotherapeutic properties and of use in human therapy, e.g. as pharmaceutical compositions, are of the general formula:   <IMAGE> in which A'<+> is cation of an aminoacid, as for example lysine, arginine, ornithine, cystine, methionine, glycine, citrulline, etc., or of a naturally occurring trimethylammonium derivative, as for example choline, carnitine, betaine, etc., and can be prepared by reaction between substantially equimolecular quantities of (-)-cis-1,2-epoxypropylphosphonic acid and the aminoacid or of trimethylammonium derivative, preferably in an aqueous solution, or in a mixture of water and an alcohol such as methyl or ethyl alcohol.
Patent GB-2042148-A (GB)
Title: Refrigeration system with carbon dioxide injector
IPC: F25D3/10
Filed: 1979-02-13
Abstract: A system for refrigerating a freezer room or tunnel by utilising a source of liquid carbon dioxide which is injected through a nozzle 56 to form a primary stream 66 within an elongate hollow enclosure 72. The enclosure is mounted with its inlet end spaced about the nozzle to define a circular opening 74 through which an annular stream of ambient gas from within the room is entrained by the primary stream. The ambient gas turbulently intermixes with the injected coolant for subliming any solid carbon dioxide or snow so that the resulting stream exhausting from the circular outlet 76 of the enclosure is free of snow. A predetermined relationship between the size of the enclosure inlet and nozzle orifice 64 is established to expand the coolant in an outwardly diverging pattern. A metering valve 36 controlling flow of the carbon dioxide is responsive to the temperature within the room and is pneumatically operated. <IMAGE>
Patent GB-2043580-A (GB)
Title: Band wrapping machine
IPC: B65B11/10
Filed: 1979-03-12
Abstract: A band wrapping machine to wrap a self-adhesive band (10) around a plurality of articles such as chocolate bars (4a, 4b) fed in groups on a conveyor (1) comprises a reel (6) of self-adhesive bands (10) carried on a backing strip (8), an edge (7) or small diameter roller for partially peeling a band from the backing strip and causing the peeled portion of the band to project into the path of the groups of articles and to be adhered to a leading face of a group with a length (10a) of the band projecting above and a further length (10b) of the band projecting below said group of articles, wipe means (11, 21, 23) for causing the band to adhere to an upper face, a trailing face and an under face of the group and to overlap the ends of the band ether at the underface or the trailing face of the group. <IMAGE>
Patent GB-2021394-A (GB)
Title: A device for dividing meat into portions
IPC: B26B29/06
Filed: 1979-03-13
Abstract: The invention relates to a device for dividing meat into portions such as strips or cubes, said device comprising a base (1) with a bottom plate (2), a box-shaped construction for receiving a pile of meat slices, said construction being made up of walls (3, 3a) which are connected together detachably and which have vertical guide slots (4) for a cutting knife, a cover plate (5) and a clamp bracket (6). The cover plate and bottom plate each has a plurality of bores for receiving spit rods which may be introduced into the meat before it is cut. The cutting knife comprises a blade with a handle at each end, at least one of the handles being detachable. <IMAGE>
Patent GB-2019113-A (GB)
Title: Laying cables and the like underwater
IPC: E02F5/10
Filed: 1979-04-11
Abstract: In the underwater laying of a cable 3 Fig. 1 in a trench on the sea bed, a submerged plough 4 advances by means of an internal winch 5 pulling on a previously laid line 1 and is connected to a cable-laying vessel 6 (also Fig. 2 not shown) by line(s) 1, 8 which is or are located above and behind the cable 3 to be laid to avoid tangling. Optionally line 1 may be left in the trench. The plough keel 15, Fig. 7 (alternative plough constructions Figs. 8-12, not shown) passes along the trench, which is cleared by water jets 19, as cable 3 passes through horn 21 into the trench. Keel depth is adjusted by hydraulic rams 14. Control cable 8 is buoyant. Some of the proposals of GB Pat No. 1 466 570 also apply to the present invention. <IMAGE>
Patent GB-2022006-A (GB)
Title: Encapsulated Ignition Coil
IPC: H01F41/00
Filed: 1979-05-18
Abstract: An ignition coil comprises an iron core 3 and primary and secondary windings 1 and 2 coated with an electrically insulating thermoplastic material 4 within a metal housing 5 which is closed by a cap 8, preferably of the same thermoplastic material, and including terminals 9, 10 and 11 for the windings. The insulating coating 4 is applied to the core 3 and windings 1 and 2 held in a mould by spacers 6 and 7, by injection. The mould preferably contains the housing 5, and the cap 8 is preferably moulded simultaneously. <IMAGE>
Patent GB-2025243-A (GB)
Title: Dartboard
IPC: F41J3/00
Filed: 1979-06-14
Abstract: A dartboard includes a peripheral annular band (11) composed of plastics material and having an integral annular channel (15) accommodating and retaining a number of rods (14) each formed integrally with one or more numerals (13). <IMAGE>
Patent GB-2026093-A (GB)
Title: Jet pump nozzle construction
IPC: F04F5/46
Filed: 1979-07-04
Abstract: A mixing and diffusing nozzle for an oil well jet pump comprises a smooth inlet 44, a mixing section 46 of constant diameter, a frustoconical prediffuser 48, and a frustoconical diffuser 50. The angle of divergence of the diffuser 50 is substantially greater, preferably twice as great, as the angle of divergence of the prediffuser 48. The prediffuser diverges at a rate approximately equal to the rate of increase in thickness of the fluid boundary layer in the prediffuser whereby the constraining effect of the boundary layer is reduced. <IMAGE>
Patent GB-2030834-A (GB)
Title: Hydroponic grass growing unit
IPC: A01G31/06
Filed: 1978-10-09
Abstract: A hydroponic grass growing unit comprises an enclosure which accommodates a plurality of horizontal seed bed trays 24 in vertically spaced rows. The floor of the enclosure has a sump 14 containing hydroponic nutrient solution. The trays 24 are supported by a plurality of vertical support posts 28, a plurality of horizontal, vertically spaced rails 27 carried by the posts 28 and channels 29 on the wall of the enclosure for supporting an edge of each tray. <IMAGE>
Patent GB-2036162-A (GB)
Title: Locks
IPC: E05B63/00
Filed: 1979-11-02
Abstract: A lock has a runner (17) whose movement under turning of a correct key in the lock, is at right angles to that of the bolt (1). The runner (17) is coupled to the bolt (1) by a bell-crank (23) that engages via a peg (29) with a dog-leg slot (31) of the bolt (1). A shoulder 37 of the runner (17) bears on the casing rear-wall (38) and lies immediately behind the bolt (1) for deadlocking it. Upward movement of the runner (17) under clockwise turning of the key is lost to the bolt (1) initially as the peg (29) traverses a first portion (32) of the slot (31), allowing the shoulder (37) to move clear before withdrawal of the bolt (1). Anti-clockwise turning of the key returns the runner (17), the peg (29) entering the lost-motion slot- portion (32) again after the bolt (1) is re-extended, to allow reintroduction of the shoulder (37) behind the bolt (1). The lower end (39) of the slot (31) is enlarged to ensure that forcing of the bolt (1) is borne by the shoulder (37) alone. <IMAGE>
Patent GB-2063124-A (GB)
Title: Adjusting coolant supply to continuous casting mould
IPC: B22D11/041
Filed: 1979-11-21
Abstract: In the casting mould block the coolant flow-cross-section (2) is variable. This is achieved in that the orifice (2) from which coolant water flows from the water chamber (1) so as to impinge externally on the associated mould (7) receives a displaceable tongue (3). The tongue (3) is displaceable under the resilient bias of a spring (6) acted on by an advanceable set screw (5) whereby the tongue (3) can vary the flow cross- section steplessly between the maximum and zero. The water chamber has two or more coolant water outlet orifices, each for directing water on to an associated one of several moulds in a multi-strand casting arrangement; each orifice can be adjusted independently of the others by means of a separate tongue at each orifice. <IMAGE>