baber/WOPTO huggingface dataset:
Patent GB-1235530-A (GB)
Title: Peroxygen compounds
IPC: C08F4/40
Filed: 1968-12-24
Abstract: 1,235,530. Polymerization initiator combination. ELEKTROCHEMISCHE WERKE MUNCHEN A.G. 24 Dec., 1968 [28 Dec., 1967], No. 61300/68. Heading C3P. Olefinically unsaturated compounds are polymerized using a polymerization initiator comprising, in combination, an organic peroxide compound having the formula wherein R 1  is a hydroxy or alkoxy radical and R 2  is an alkyl radical, or a radical of formula and one or more reductive compounds, capable of addition to a carbon-carbon double bond activated by adjacent C=O groups, selected from (a) aliphatic, aromatic or alicyclic compounds having a thiol group together with one ore more oxygen, nitrogen or sulphur containing groups, except compounds falling within classes (b) to (e); (b) salts of thiocyanic acid which are soluble in organic media; (c) thiocarboxylic acids and thiocarbonamides of formula HSCOR, HSCSR, HSC(NH)R or HSC(NR)R where R is alkyl or aromatic; (d) dithiocarbamate and mercaptothiazole compounds of formula or salts thereof, where R is alkyl or cycloalkyl and may form part of a ring structure and A<SP>1</SP> is hydride or links the SCN structure; (e) compounds of structure wherein R a  and R b  are hydrogen or alkyl or are linked to form a ring structure; (f) dithiophosphoric acid esters or dithiophosphinic acids and salts thereof having the structure HS-PS(OR) 2  or HSPSR 2  where R is alkyl or aryl; (g) alkyl and aryl sulphonyl hydrazides; (h) 4 - hydroxypyridine and derivatives thereof and (i) tertiary phosphines i.e. trialkyl and triarylphosphines and tertiary phosphites i.e. trialkyl phosphites. In a modification the peroxide compound is the reaction product of 2,5 - dimethyl 2,5 - dihydroperoxy hexane with an α,# - unsaturated dicarboxylic acid or semiester thereof. In the examples polyester resins are polymerized with t-butyl permaleinate, tbutyl perethyl fumarate, bis ethyl fumaroyl peroxide, various compounds of classes (a) to (i) and tri-isopropanolamine in isopropanol as base. Methyl methacrylate, styrene, acrylonitrile and vinyl acetate are bulk polymerized, acrylonitrile polymerized in solution and vinyl chloride polymerized in aqueous suspension.
Patent GB-1249670-A (GB)
Title: Self-tightening toolholder
IPC: B23B31/20
Filed: 1968-12-31
Abstract: 1,249,670. Chucks; cutters. ERICKSON TOOL CO. 31 Dec., 1968 [13 Aug., 1968], No. 61987/68. Headings B3B and B3K. A tool-holder includes a body having an axial bore extending from a tool receiving end, and comprises a collet 19 disposed within the bore to grip a tool 12, a first abutment, e.g. a sleeve 28, for acting on the collet 19 to grip the tool upon axial movement of the collet against the abutment, a second abutment, e.g. a rear centre steady 44, disposed in the bore to engage the axially inner end of the tool, a coaxially tapped aperture 24 in the other end 25 of the body, lock-screw 47 threaded in the tapped aperture and rotatively interconnected, e.g. by a key and slot 48, 49, with the second abutment, the lockscrew 47 being accessible from the said other end 25 for initially setting the tool 12. The lockscrew and the second abutment are rotatable by friction between the tool and the second abutment, should the tool slip in the collet, to move the second abutment towards the tool receiving end of the bore, and a nut 17 in the bore and engaging a threaded end of the tool 12 is axially moved as a result of such movement of the second abutment to urge the collet towards the first abutment to tighten the collet 19, the nut threads at the same time, during tool slippage, causing the tool to be screwed into the nut to urge the nut towards the first abutment to tighten the collet. During tool slippage the tool holder is automatically tightened by two modes of operation without altering the setting of the tool 12 in the holder and the holder is therefore suitable for punched tape numerically controlled applications. The tool 12 may be preset in a gauging fixture using a gauging surface 52 on the body. Interchangeable sets of nuts 17, collets 19, sleeves 28 and nosepieces 38 can be provided.
Patent GB-2002032-A (GB)
Title: Electrolytic cell and method of electrolysis using such a cell
IPC: C25B9/23
Filed: 1978-06-27
Abstract: An electrolytic cell has dimensionally stable anodes 4, non- porous ion-selective membranes 8 separating the anodes from a cathode compartment in a cathode container 1 and a porous, static bed of loose, particulate conducting cathodic material 10 in the cathode compartment of the container. The cathodic material extends between conductive walls of the cathode compartment and the membranes and contacts the conductive walls of the cathode and the membranes to carry current between the walls of the cathode compartment and the membranes. This construction reduces the electrodic gap to substantially the thickness of the membranes and presses the membranes against the anodes. It produces greater uniformity of current density over the entire electrodic area, substantially free from localised differences of current density which tend to cause deterioration of the membranes by the creation of localised mechanical and electrical stresses in other types of cells. The invention also provides a method for carrying current from the effective cathodic surface to the walls of the cathode compartment. <IMAGE>
Patent GB-2023532-A (GB)
Title: A Bundling Strap Removing Device
IPC: B65B69/00
Filed: 1978-10-30
Abstract: A bundle, for example a coil of sheet metal, is supported on a support bed 2 adjacent to a device for removing a bundling strap encircling the bundle. The device comprises a lever 3 capable of being pivoted about an axis 4 by power means 5 in the direction of arrow 6 to bring a cutting apparatus 7 and a gripper apparatus 9 carried on arm 8 into contact with the bundle. The cutting apparatus 7 incorporates hold-down means which press the strap against the bundle at circumferentially spaced apart locations and a chisel which is moved axially of the bundle to cut through the strap. The gripper apparatus incorporated a castellated head on which the severed strap is wound into a coil, and a stripper which removes the strap from the head to deposit it in a container 10 as the device is swung back into the left hand position shown in chain lines. <IMAGE>
Patent GB-2011219-A (GB)
Title: Ultrasonic probes
Inventor: KEVIN DOMINIC BREEN
IPC: G01F1/66
Filed: 1978-12-13
Abstract: In a stand off cell (1) for ultrasonic transducers it is desirable to reduce signals reflected at the output face (5) which may propagate back to the transducer (2). In this arrangement the output face of a solid stand off is formed with corrugations (6) such that the reflected wave has superimposed on it variations which cause destructive interference. The corrugations preferably take the form of rectangular grooves of equal area spaced by a quarter wavelength of the ultrasound. <IMAGE>
Patent GB-2009905-A (GB)
Title: Returning fuel residues to a fluidised bed boiler combustion chamber
IPC: F23C10/22
Filed: 1979-01-05
Abstract: In a fluidised bed boiler, partly burned fuel and bed material are separated from the flue gas outside the combustion chamber and returned to the bed. In a boiler 110, these solid particles are separated out by separating means in the form of a fire wall array 170, 172, 174 and pneumatically conveyed back to the bed 122 by a pneumatic conveyor means 178, 182, 184, 186. Bouyant ash passes right through the boiler 110 to be separated out by a cyclone 152. The separation can occur in a gas reversal chamber in an alternative construction. The pneumatic means can be replaced by a mechanical screw-feeder conveyor means. The boiler is preferably a shell boiler. This system ensures the economic burning of substantially all the fuel content of the solid fuel and the reuse of good bed material which might be otherwise lost. <IMAGE>
Patent GB-2016445-A (GB)
Title: Manufacturing an optical transmission fibre
IPC: C03B23/207
Filed: 1979-02-20
Abstract: A method of manufacturing an optical transmission fibre comprises forming glass particles by subjecting glass raw material gas to flame hydrolysis, and then supplying the glass particles onto a starting member so that the glass particles are laminated thereon and successively grown to produce a cylindrical glass particle body. The cylindrical glass particle body is then sintered to produce a transparent glass cylinder 13, which is subsequently inserted into a quartz glass pipe 14 to provide the assembly of the transparent glass cylinder 13 and the quartz glass pipe 14. The assembly is heated (15) to melt the glass cylinder and the quartz glass pipe together and the assembly is drawn into a thin fibre 16. <IMAGE>
Patent GB-2028889-A (GB)
Title: Extruded Interfitting Building Elements
IPC: E04C1/39
Filed: 1979-03-14
Abstract: Stoneware sectional element for structural application, box-shaped or trough-shaped in cross-section, made by extrusion preferably of ceramic material. Owing to the presence of one of more grooves the roundings of which as seen in cross-section have the same radius along the sectional element, the elements can engage in composite structures. The elements can be used in gardens and parks for the construction of steps and walls. <IMAGE>
Patent GB-2018036-A (GB)
Title: Precision resistors, sub-assemblies therefor for their manufacture
IPC: H01C1/034
Filed: 1979-03-14
Abstract: A precision resistor has a thin resistive foil 12 cemented to a much thicker rigid substrate. The foil has formed therein a pattern defining the resistive path between terminal pads 14. Copper leads can be spot-welded directly to these pads without damage to the junction between lead and pad. To that end, apertures 25 are provided through the terminal pads, through which cement softened by the spot-welding heat can locally expand and gas evolved under pressure can escape, all without adversely affecting the junction and without substantial lifting of the terminal pads from the substrate. <IMAGE>
Patent GB-2053945-A (GB)
Title: Amine salts of acidic microbial polysaccharides
IPC: C12P19/06
Filed: 1979-07-18
Abstract: Acidic polysaccharides of the type obtainable by microbial fermentation of an organic material such as a carbohydrate (e.g., xanthan gum) from xanthomonas campestris NRRL B-1459 form novel amine salts with aliphatic or alicyclic polyamines having at least three amino nitrogen atoms and a molecular weight of at least 150. The amine salts may be used for isolation of the microbial polysaccharide from its fermentation broth by a process comprising the steps of acidifying, forming the amine salt by adding the amine or a salt thereof, and reducing the inorganic salt concentration as necessary (e.g., by dilution) to effect precipitation of the amine salt of the acidic polysaccharide.
Patent GB-2063982-A (GB)
Title: Fastening
IPC: B60K37/00
Filed: 1979-11-14
Abstract: Components e.g. elements 1, 4 of a binnacle for car instruments are held together by resilient rod 11 which is given a sinuous path between lugs 6 and 10 on elements 1, 4 respectively which lugs are arranged to alternate along the row. <IMAGE>
Patent GB-2036179-A (GB)
Title: Regenerative rotodynamic compressors and pumps
IPC: F04D23/00
Filed: 1979-11-21
Abstract: The impeller blades are of aerodynamic form and designed so that the angle between the entry and exit flows of each blade is greater than 90 DEG . The inner surface 30 of each blade is a single circular arc, while the outer surface 31 is formed of a succession of circular arcs extending over the angles shown. The blades are disposed in scooped-out annular cavities or recesses on each side of the impeller disc and co-operate with two annular side channels, one on each side of the impeller. <IMAGE>
Patent GB-2063936-A (GB)
Title: Textured yarn
IPC: D02G1/00
Filed: 1979-11-27
Abstract: Textured yarn is produced by a knit-de-knit process. Synthetic yarn is knitted, set, transfer printed and de- knitted. Transfer printing is relatively easy to operate, and leads to random space-dyed multi-coloured yarn containing as many colours as desired. When knitted again, the fabric has a pleasing visual effect.
Patent GB-2036192-A (GB)
Title: Rotary motor and method of operating same
IPC: F01D1/18
Filed: 1979-04-17
Abstract: A motor having a rotary unit (11) rotatably mounted within an air evacuated housing (12). The rotary unit (11), having a balanced inertial mass (30, 38, 40), is driven in a continuous manner by a reaction drive unit (125, 126, 127, 128) which derives its power from the exterior of the housing (12). Since the rotary unit (11) operates within a near vacuum environment and comprises an inertial mass (30, 38, 40) driven by a reactive force, a high degree of energy transmission efficiency is effected.
Patent GB-2058144-A (GB)
Title: Solder flux composition
IPC: B23K35/36
Filed: 1980-02-28
Abstract: A solder flux comprises a mixture of sarcosine and tartronic or tartaric acid dissolved in water or water and an aliphatic alcohol, the acid-sarcosine weight ratio being 90:10 to 30:70 and the solution containing phenol and/or alicyclic acid lead carbonate. The flux is employed for tin/lead soldering of a range of metals and alloys including copper, nickel, nickel-cobalt- iron and nickel-iron. Biodegradation of the flux is inhibited by the inclusion of 0.001 to 1.0 weight percent of, phenol or salicylic acid 0.002-0.005 lead carbonate.
Patent GB-2045798-A (GB)
Title: Process for preparing a pitch from a tar
IPC: C10C1/20
Filed: 1980-03-24
Abstract: Pitch is prepared by mixing a tar, which can be a coal or petroleum derived tar with a nitrating agent selected from nitric acid, an organic nitrate and nitrogen pentoxide and heating the resulting mixture to and at a temperature of 150 to 400 DEG C. By this process a pitch is obtained in high yield and which upon carbonization provides carbon materials, such as fibers or filaments, having a good balance of physical properties.
Patent GB-2051923-A (GB)
Title: Improvements in and Relating to Wall Ties
IPC: E04B1/41
Filed: 1980-06-02
Abstract: This invention relates to wall ties. A wall tie is provided which has transverse wings (9) for holding a sheet (17) of insulation material in the cavity (15) of a cavity wall in position against the inner leaf (14) of the wall. The wings (9) have nipples (10) to improve their holding action. The wall tie is also provided with anchor bulbs (12) to assist anchorage in mortar joints (15) and is further provided with a rectangular flange (11) to prevent moisture travelling along the central shaft (6) of the tie from the outer leaf (13) to the inner leaf (14). <IMAGE>
Patent GB-2058258-A (GB)
Title: Improvements relating to brake adjusters
IPC: F16D65/14
Filed: 1980-09-01
Abstract: A hydraulic actuator for a vehicle (e.g. sliding caliper disc) brake incorporates an automatic adjuster and comprises a clutch mechanism 6, 7, 8 operative between a piston 2 of the actuator and an auxiliary mechanical actuator. The clutch mechanism comprises a first member 6 and a second member 7, member 6 being connected to the actuator piston 2 for axial movement therewith and member 7 being connectible with the mechanical actuator, and the arrangement being such that the members 6, 7 grip together only upon actuation of the mechanical actuator. As shown member 6 is a rod having freely threaded connection with member 7 in the form of a split nut, the rod 6 attaining a new rest position relative to nut 7 upon pad wear. Upon mechanical actuation, piston 8 is moved to interengage surfaces 14, 15 and cause nut 7 to grip rod 6. Figure 2 shows a modification and other modifications are disclosed 'Knockback' does not lock the adjuster, and over- adjustment is prevented. <IMAGE>
Patent GB-2084114-A (GB)
Title: Workpiece stacking device
IPC: D05B41/00
Filed: 1980-11-26
Abstract: A stacking device (16) for stacking, particularly long, articles (14) sewn by a sewing machine (12), comprises a platform (17) reciprocally movable on a frame (15). After a predetermined length of article (14) has been sewn a piston (22) moves the platform (17) towards the sewing machine so that the leading edge (31) of the article (14) is trapped between the platform (17) and rollers (28) on a pivotal, biased, retaining arm (23). When a further length of article (14) has been sewn the piston (22) moves the platform (17) in the reverse direction and simultaneously a second piston (30) moves a second pivotally mounted laying arm (24) to engage the trailing portion (32) of the article (14) and move it over stack supporting tines (18) on the platform (17). <IMAGE>
Patent GB-2067523-A (GB)
Title: Holding sheet material on to a drum
IPC: B65H20/02
Filed: 1980-10-23
Abstract: A drum (1) for feeding sheet material such as paper and holding the material during rotation of the drum about its axis by electrostatic attraction comprises a drum body e.g. of glass fibre-reinforced plastics material, provided with an elongate electrical conductor. In one embodiment, first and second electrical conductors (3 and 4) are helically wound to be equally spaced in a direction along the axis of the drum. In an alternative case, the conductors are interdigitated conductors. The conductors are encapsulated in a layer of hard epoxy material or a urethane. Electrical potentials of the same magnitude but of opposite polarity to one another are applied to respective concentric slip-rings (5 and 6) via carbon brushes (8 and 9) respectively, the latter being pressed against the slip-rings via springs (10 and 11). The arm may form part of a plotter or drafting machine. <IMAGE>
Patent GB-2065059-A (GB)
Title: Package for flowers
IPC: B65D75/36
Filed: 1980-11-04
Abstract: A package e.g. for an orchid comprises a backing sheet (11) of cardboard and a dish (1) having a flange (7) around the periphery so that the dish (1) is adhered to the backing sheet (11). The dish (1) includes a part (6) in which a water reservoir is formed and a neck (4) through which the stem (10) of a flower bloom contained in the other part (5) of the dish (1) can be placed. The water is preferably retained in a portion of sponge or cotton wool and a hinged panel (20) in the backing sheet (11) may facilitate refilling of the reservoir. <IMAGE>
Patent GB-2071487-A (GB)
Title: Brush trimmer
IPC: A01M1/20
Filed: 1981-01-26
Abstract: An apparatus for trimming brushes and brooms comprising two displaceable cutter members 1 & 4 retained in grooves formed in a cutter body which is rotatable about its longitudinal axis and a fixed cutter member 2, the cutting edges of the displaceable cutters, in use, co-operating with the cutting edge of the fixed cutter to produce a shearing effect, the displaceable cutter members and the fixed cutter member being disposed obliquely to one another to define a shearing angle therebetween wherein each displaceable cutter comprises a plurality of cutter portions, 1x, 1y, 1z, eg straight ground, the cutter portions being fixedly mounted in a groove formed in the cutter body, which groove extending from end to end of the cutter body at the predetermined shearing angle relative to the axis of the cutter body, the groove being longitudinally divided into sections, the length of each section corresponding to the length of the cutter portion mounted therein, each section of the groove having the same cutting breast or front rake angle at one of its ends so that each cutter portion, at the beginning of its cutting operation, subtends the predetermined shearing angle relative to the cutting edge of the fixed cutter which extends parallel to the axis of the cutter body. <IMAGE>
Patent GB-2071965-A (GB)
Title: Telegraphic reception apparatus
IPC: H04L13/00
Filed: 1981-03-13
Abstract: The invention relates to machines in particular telex machines for transmitting and receiving messages and for producing an output in the form of a written record of messages receives and sent. The invention provides that the machine is provided with means for identifying a source of at least some of the messages and for producing an output message in a characteristic written format indicative exclusively of that source.
Patent GB-2075116-A (GB)
Title: Theft-deterrent devices
IPC: G09F3/00
Filed: 1981-03-27
Abstract: The invention relates to a theft deterrent device which can be lockably fastened to an article (4) made of cloth, leather, skin or like material, in a manner such that it can only be removed from the article with the aid of special means intended therefor. The device is, to advantage, in the form of a clamp which can be closed around an edge part of the article and therewith automatically locked in position. Arranged in the two halves of the clamp-like device are steel pins which penetrate the material from which the article is made, so that the device sits firmly thereon. The device includes one or more enclosed spaces, preferably in the form of glass ampoules (19) arranged in cavities (15) in the device. The ampoules contain a heavily staining and/or ill-smelling substance, for example a gas or liquid under pressure, and are arranged to break readily if an attempt is made to remove the device by force. When the ampoules break, the substance streams onto the article in question, causing it to become heavily stained and/or impregnated with an obnoxious odor, thereby rendering the article unusable.
Patent GB-2072991-A (GB)
Title: Coding and decoding of NTSC colour television signals
IPC: H04N11/14
Filed: 1981-03-31
Abstract: An NTSC decoder includes a comb filter in the chrominance band signal path based on a delay D of a whole number of lines equal substantially to a field or picture period. The comb filter output is bandpass filtered at 2 and the resultant both demodulated to provide the I and Q signals 3, 4 and subtracted from the input signal at 5 to provide the Y signal. A converse coder is described, Figures 3(a) and (b). The comb filter may be based on one or on two delay devices (Figure 2(b)), or may be adaptive (Figure 5), changing its effective state in dependence upon a control signal derived from the input signal. <IMAGE>
Patent GB-2099305-A (GB)
Title: Finger stall for wiping infants' teeth
IPC: A46B5/04
Filed: 1981-06-02
Abstract: A dental care article, especially suitable for cleaning babies' teeth, comprises a soft woven or non-woven finger stall of fabric (10), shaped by means of a seam (11) so as to have a closed end (12) and an open end (14) with an elasticated edge (15). A rubber or other moisture-impermeable lining is desirably also provided. <IMAGE>
Patent GB-2109991-A (GB)
Title: Photodetector
Inventor: THOMPSON GEORGE HORACE BROOKE
IPC: H01L31/112
Filed: 1981-11-17
Abstract: A JFET photodetector includes a rib 5 made of a material which has a high band gap and low refractive index relative to the band gap and refractive index of an underlying layer 2, the latter having a band gap sufficiently narrow to absorb light of the wavelength being used. The rib structure acts as a waveguide, light being launched into an end face of the rib at 12. <IMAGE>
Patent GB-2087703-A (GB)
Title: Apparatus for, and method of, improving a plant growing environment
IPC: A01G9/24
Filed: 1981-11-20
Abstract: A method of improving the growing environment of plants comprises positioning on each side of the plants a liquid-filled flexible container which absorbs solar energy during the day for subsequent radiation to the plants. A cloche for utilizing the method is disclosed which comprises four containers (10-13) and a bridging flexible canopy (15). <IMAGE>