baber/WOPTO huggingface dataset:
Patent GB-1014468-A (GB)
Title: Improvements in the continuous manufacture, in indefinite lengths of multi-tubular electrical heating strips from synthetic resins, more particularly for the construction of pads and blankets
IPC: H05B3/34
Filed: 1964-10-09
Abstract: 1,014,468. Seaming non - metallic sheet material. A. NEGROMANTI. Oct. 9, 1964, No. 41244/64. Addition to 776,359. Heading B5K. Multi-tubular strips for the manufacture of electrically heatable pads or blankets are produced from materials which are non- weldable by the application of heat by passing two indefinite-length strips of the non-weldable material between rotating electrodes or internally heated pressing members with a thermoplastic sheet material sandwiched therebetween to form staggered welds as described in the parent Specification. One or both non-weldable strips may be of a woven or knitted fabric or a net or of a perforated or imperforate sheet material, foamed sheet or padding. The external surace of one or both non-weldable strips may be flocked with fire-proof textile fibres, e.g. glass or polyvinyl chloride, which may be of different lengths to obtain different rates of heat dissipation, i.e. different temperatures. The weldable thermoplastic sheet material may be a laminated sheet, either perforated or imperforate, or of a woven or knitted fabric or of foamed sheet material or a net or of padding.
Patent GB-1272983-A (GB)
Title: A zoom ring for zoom lens
IPC: G02B7/105
Filed: 1969-08-19
Abstract: 1,272,983. Zoom rings. CANON K.K. Aug. 19, 1969 [Aug. 20, 1968], No.41279/69. Heading G2J. A zoom ring for a zoom lens comprises a cylindrical member 2 having a stop 3 for limiting rotation of the zoom ring in use, and a curved plate 1 shaped to conform to the curved surface of the cylindrical member and provided with slots for alignment with corresponding slots or recesses 7 in the member, there also being means for mounting the plate on the cylindrical member. The mounting means includes pins 4 on the cylindrical member and holes 5 on the plate. The stop 3 may be made integral with member 2 or a separate piece may be used which is fixed to the member. The latter may be made by precision casting or plastic moulding, the plate being formed by precision pressing. The inner surfaces of cam slots 6 provide a thrust surface for movement of the lenses of the zoom system, and the slots 7 may be wider than the slots 6.
Patent GB-1133295-A (GB)
Title: Improvements in or relating to signal storage devices using magnetic cores
IPC: G11C17/02
Filed: 1967-09-12
Abstract: 1,133,295. Read-only store. SIEMENS A.G. 12 Sept., 1967 [13 Sept., 1966], No. 41569/67. Heading G4A. A read-only store using magnetic cores associated with conductor configurations on sheettype carriers includes a cassette, providing accommodation for a stack of carriers, which is completely open on one side for the withdrawal of the carriers and into the exterior of which extend a plurality of flexible contacts at least equal in number to the number of carriers accommodated, which contacts are spaced apart from one another in a direction parallel to the carrier planes by at least one contact thickness plus a carrier thickness and are spaced from one another in a direction perpendicular to the planes by at least one carrier thickness and are of such length as to make contact with the conductor configurations. The contacts which may be wires or strips can be held in drillings in the frame of the cassette or be clamped in guide grooves in the cassette, the drillings or grooves being spaced as outlined above. The contacts can be of different length, with shorter ones in the centre and increasing in length as they approach the outer walls of the cassette as shown at 6, Fig. 1, and are all lifted up (Fig. 4), to insert the first carrier which is flexible, then the lower contact or contacts placed on the first carrier and the second carrier inserted &c. The stack of carriers is held in place by pivoted catches 7, Fig. 1. The magnetic cores may pass through holes in a side of the cassette and through holes in the carriers, a conductive strip 13 being arranged to by-pass or surround the cores as required and to engage the appropriate contacts.
Patent GB-1360091-A (GB)
Title: Closures
IPC: B65D47/14
Filed: 1972-07-31
Abstract: 1360091 Caps for containers METAL BOX CO Ltd 31 July 1972 [10 Sept 1971] 42243/71 Heading B8T [Also in Division E2] A captive cap 10 has a hinge 16 comprising a strap 18 substantially rigid in use of the hinge and integral with webs 20, 22, the web 20 being less flexible than the web 22. The cap 10 may be integrally moulded with a body 5 and have a plug 14 closing an aperture 8 in the body. The side of a domed portion 6 may be ridged to engage similar ridges on the cap skirt. The body 5 may be threaded internally to engage a container top or may be moulded integrally with it.
Patent GB-940435-A (GB)
Title: Improvements in rectifier equipment
IPC: H02M7/04
Filed: 1960-12-09
Abstract: 940,435. Rectifying. ALLMANNA SVENSKA ELEKTRISKA A.B. Dec. 9, 1960 [Dec. 15, 1959], No. 42416/60. Heading H2F. In an arrangement where a number of polyphase rectifiers 1, 2, 3, 4 feed a pair of D.C. lines 5 in parallel any rectifier, say 1 or 3, which is a mercury arc or contact rectifier and consequently liable to suffer an internal short circuit on the D.C. side under fault conditions is provided with a rectifier element 6, 7, in its output circuit so that the other rectifiers which may be semi-conductor rectifiers cannot be overloaded by the short circuit and themselves become damaged.
Patent GB-1476072-A (GB)
Title: Pyrimidinyl -thiono- phosphoric -phosphonic- acid esters and ester-amides and their use as insecticides acaricides and nemati cides
IPC: A01N57/08
Filed: 1975-10-17
Abstract: 1476072 Pyrimidyl esters of phosphorus acids; pyrimidines BAYER AG 17 Oct 1975 [23 Nov 1974] 42621/75 Headings C2P and C2C The invention comprises compounds of formula (wherein R is C 1-14  alkyl; R 1  is C 1-6  alkyl, C 1-6  alkoxy, C 1-6  alkylamino or phenyl; R 2  is C 1-4  alkyl, phenyl or mono- or polyhalophenyl; and X is O or S); and their preparation from the corresponding pyrimidin-2-ols (which may be in the form of hydrochloride, alkali metal, alkaline earth metal or ammonium salts) by reaction with (RO)(R 1 )P(X)-halogen, and an acid-acceptor where necessary. 2 - Hydroxy - 5 - methylthio - 4,6 - dimethylpyrimidine hydrochloride and its 5-ethylthio and 5 - (p - chlorophenylthio)analogues are prepared from 3-methylthio-2,4-pentanedione &c. by reaction with urea and HCl. Insecticidal, acaricidal and nematocidal compositions comprise a compound I and a carrier.
Patent GB-981692-A (GB)
Title: Improvements relating to the preparation of catalysts
IPC: B01J23/58
Filed: 1961-11-29
Abstract: In a method of preparing hydrocarbon conversion catalysts a halogenatable refractory oxide of Group III to V of the Periodic Table is contacted with an alkali or alkaline earth metal compound and thereafter with the vapour of a fluorine compound at an elevated temperature.  Specified refractory oxides are Al2O3, B2O3, SiO2, TiO2 and ZrO2.  Preferred contact compounds are sodium or potassium carbonate, bicarbonate, formate, acetate or oxalate. Additionally the catalyst may contain a minor proportion of a compound of a Group VIA or VIII metal, e.g. Pt or Pd.  Preferred fluorinating compounds are those of general formula XF2Y2 where X=C or S and Y=F or H, e.g. CF4, CHF3, CH2F2 and the corresponding sulphur compounds.  Examples are given.  Specification 981,693 is referred to.
Patent GB-995745-A (GB)
Title: Plastic hollow bodies manufactured by blowing
IPC: B29C49/00
Filed: 1961-11-29
Abstract: 995,745. Blow moulding. E. LIPPERT. Nov. 29, 1961 [Nov. 30, 1960; June 6, 1961], No. 42704/61. Heading B5A. [Also in Division A4] A coat hanger (see Division A4) is blow moulded from a synthetic plastics tubular material in a two-part mould, Fig. 5, with a wedge shaped portion 9, so that a thickened portion 2 is formed in at least one of the longitudinal sides of the body, which thickened portion 2 projects towards the inside and outside of the walls 6. The portion 2 is formed either simultaneously or subsequently with an aperture for receiving a metal hook 7.
Patent GB-1534882-A (GB)
Title: Roller guides
IPC: B21B39/16
Filed: 1975-10-17
Abstract: 1534882 Roller entry guides BRITISH STEEL CORP 15 Oct 1976 [17 Oct 1975] 42740/75 Heading B3M A roller entry guide for a rolling mill incorporates a pair of rollers 23 which are biased towards each other with a substantially constart force, irrespective of lateral displacements of the rollers by a workpiece.  In one arrangement, the rollers are carried by two arms 19, 20 (Fig. 1, in plan) which are pivotally supported at 25 to a guide frame 10 The ends of the arms remote from the rollers have L-shaped plates 52 attached to them, and are biased apart by a hydraulic unit 58. After initial pressurization of the hydraulic unit, to provide a desired biasing force for the rollers, the force is maintained constant by a compressedgas container 59. In an alternative form (Figs. 3, 4, not shown) composite bolts embodying Belleville springs act against the arms to provide the biasing force.
Patent GB-1092509-A (GB)
Title: Improvements in master-slave load control circuits
IPC: G05F1/44
Filed: 1966-09-28
Abstract: 1,092,509. Control of A.C. loads. GENERAL ELECTRIC CO. Sept. 28, 1966 [Oct. 23, 1965], No. 43343/66. Heading H2H. A circuit for the cascade energization of a number of loads 5<SP>1</SP>, 17<SP>1</SP>, 21<SP>1</SP> &c. comprises in series with each load a triac or reverse parallel connected thyristors fired by a transformer 3<SP>1</SP>, 26, in series with the previous load. In this way the heat dissipation of the master control circuit is minimised. The transformers are preferably of the high-frequency and/or saturating type to reduce the series impedance and may carry a plurality of pairs of secondary windings. Other arrangements are described in the Specification utilizing diacs or quadiacs. The loads 5<SP>1</SP>, 17<SP>1</SP> should comprise a plurality of individual loads to avoid losing control through an open circuit.
Patent GB-1534504-A (GB)
Title: Amino-formaldehyde resins
Inventor: YATES RAYMOND WILLIAM
IPC: C08G12/42
Filed: 1974-10-08
Abstract: 1534504 Epoxy-modified aminoplast resins BRITISH INDUSTRIAL PLASTICS Ltd 23 Sept 1975 [8 Oct 1974] 43435/74 Heading C3R [Also in Division B5] An aminoplast resin is obtained by reaction of an aminotriazine, formaldehyde and a monoepoxide in the molar ratio 1 : 2-4 : 0À01-0À2. Preferably it is a solution of viscosity 80-200 sec. in a British Standard E U-tube at 25 C.; the solution may be modified by addition of 0À1-30% of its weight of sucrose. Preferably melamine is heated with formalin and the monoepoxide in the ratio 1 : 0À5-1À5 : 0À01-0À2 in a C 1-3  alkanol at pH 9À5-11À5 at 60 C. up to reflux for 0À5-4 hrs., then formalin is added to a final M : F ratio of 1 : 2-4, heating at pH 7À5-9 at 40 C. up to reflux to the required viscosity. In Examples melamine is heated at reflux (85 C.) with formalin and octene oxide or a commercial monoepoxide in the ratio 1 : 0À75 : 0À016-0À053 in ethanol or isopropanol i.p.o. NaOH for 3 hrs.; formalin is then added to a final ratio of M : F of 1 : 2À5 or 3À5. The product solution, optionally with sucrose, is used to impregnate a print paper for lamination to chipboard.
Patent GB-1446045-A (GB)
Title: Cooling of elongate plate members such as aerofioil blade members
IPC: F01D5/18
Filed: 1973-09-17
Abstract: 1446045 Making turbine blades GENERAL ELECTRIC CO 17 Sept 1973 [21 Sept 1972] 43485/73 Heading B3A [Also in Division F1] Cooling of an elongated heated plate member, e.g. a hollow turbine blade 10 of aerofoil section, is effected by cooling fluid passing from an internal cavity 16 to the trailing edge 14 of the blade via two series of passages 26, 28 which are inclined with respect to the trailing edge and which intersect one another to define nodes 30 which increase heat transfer by providing greater surface area and promoting turbulent fluid flow. The passages are formed by crossdrilling, first one series and then the other.
Patent GB-967333-A (GB)
Title: Process and apparatus for washing highly polymeric organic substances in a continuous manner
IPC: C08B37/14
Filed: 1960-12-20
Abstract: In a process for continuously washing at raised temperature highly polymeric organic substances having a viscosity of 102 to 105 poises at the washing temperature, the preheated highly polymeric organic substance in a viscous state is reduced to a plurality of fine filaments by passage through nozzles or a perforated plate, is treated while flowing freely, under a pressure of 5 to 30 atmospheres, with a hot washing liquid in which the polymeric organic substance is substantially insoluble but which dissolves the impurities, the polymeric substance and washing liquid are subjected to further intimate mixing, and the polymeric substance is subsequently separated from the washing liquid at the same or lower pressure. The flowing polymeric substance may be subjected to a stream of hot washing liquid directed transversely to the direction of flow of the polymeric substance, and the further mixing may be effected by passing the polymeric substance and washing liquid through an emulsifier.  Apparatus suitable for carrying out the process of the invention is described and illustrated, and examples describe the washing of (1) polyvinyl acetate with water, (2) a copolymer of ethylene and propylene with alcohol, (3) a copolymer of vinyl acetate and vinyl laurate with water, (4) polyvinyl propionate and a copolymer of vinyl acetate and dibutyl maleate with water, (5) a melt of polyvinyl acetate and dibutyl phthalate, (6) polyethylene and polypropylene with isopropanol, (7) a silicone resin with water, (8) gum arabic with methanol and (9) a wax-like highly condensed aminocrotonic acid ester with isopropanol.
Patent GB-937059-A (GB)
Title: Safety guard construction for ice skates
IPC: A63C3/00
Filed: 1961-12-08
Abstract: 937,059. Guards for ice skates. CANADA CYCLE & MOTOR CO. Ltd. Dec. 8, 1961 [Dec. 19, 1960], No. 44026/61. Class 132 (1). A safety guard for tube bladed skates c prises a body incorporating a blunt toe 15 and a shank 17 of smaller cross-sectional area, the shank being capable of being secured in the rear end of the blade carrying tube of the skate to cause a portion of the toe to project beyond the rear end of the blade 11 and tube 10. The end of the tube is curved and the toe has a complementarily curved shoulder which engages the end of the tube. The toe has a tapered lug 18 which abuts the upper rear end of the blade, and overlaps the flanges 20 of the tube. The shank may be secured in the tube by a rivet 21 or a cement.
Patent GB-1025628-A (GB)
Title: Improvements in and relating to stranded wire electrical conductor cables with terminal lugs
Inventor: BOTELHO GEORGE SILVA
IPC: H01B7/24
Filed: 1963-11-07
Abstract: 1,025,628. Cable and wire terminals. STEELWELD Ltd. Oct. 15, 1964 [Nov. 7, 1963], No. 44033/63. Heading H2E. A terminal assembly for a stranded wire conductor comprises a terminal lug 2 having a supporting flexible insulating sleeve 4 of rubber or plastics moulded around the cable near the lug 2. The lug has a flared inner end which merges into the end of the moulded sleeve which tapers from there and is reduced to nothing as it enters the end of hose 3 which loosely surrounds the cable to permit air circulation for cooling.
Patent GB-931958-A (GB)
Title: Improvements in unspillable accumulators having a solid electrolyte, and in methods of operating such accumulators
Inventor: JACHE OTTO
IPC: H01M50/103
Filed: 1960-12-22
Abstract: 931,958. Batteries. ACCUMULATORENFABBIK SONNENSCHEIN G.m.b.H. Dec. 22, 1960, No. 44134/60. Drawings to Specification. Class 53. An unspillable accumulator has the electrodes covered with a fleece or fabric and uses a solid thixotropic electrolyte, the electrolyte containing particles e.g. of silicic acid larger than the pores of the active material. When the accumulator is charged, some of the free electrolyte in the active material is forced into the thixotripic mix and liquefies it. The cells are sealed by a valve with e.g. a silicone or grease to give a delay to the opening. The electrolyte contains phenols as an antioxidant and the grids of the electrodes are of calcium lead which performs better in the cell than antimony lead.
Patent GB-1474863-A (GB)
Title: Control circuit for electromagnet coil
IPC: B41J2/30
Filed: 1975-10-28
Abstract: 1474863 Semi-conductor switching circuit HONEYWELL INFORMATION SYSTEMS ITALIA SpA 28 Oct 1975 [20 Dec 1974] 44268/75 Heading H3T To drive an electromagnet coil 1, e.g. in a high speed printer, from an unstabilized supply V via a switching device such as transistor 2, the voltage across a current measuring resistor 3 is compared with a reference voltage depending on supply V to operate a bi-stable device such as differential amplifier 5 with feedback chain 8, 9, so that on receipt of an input signal the switch changes to ON and remains ON until the current measuring signal exceeds the reference voltage. To initiate energization a short positive pulse is applied to terminal 17, bringing the output of amplifier 5 more positive than its non-inverting input which is at the reference voltage of the tapping of a voltage divider 6, 7 across supply V. Diode 9 conducts, locking amplifier 5 ON; diode 12 blocks, turning transistor 2 ON and allowing the current in coil 1 to begin to rise along an exponential curve. When the drop across resistor 3 exceeds the reference voltage, the amplifier output becomes negative, diode 9 blocks to unlock the amplifier, diode 12 conducts and grounds the base of transistor 2, switching OFF the current in coil 1. The circuit is held in the OFF condition by the voltage across Zener 14, higher than the reference voltage, but is activated ready for the pulse on terminal 17 by grounding terminal 15. The higher the voltage V the shorter the operating time of the magnet, including the time for current rise to saturation and at a higher rate above this level (Fig. 2, not shown). The momentum transferred to the magnet armature may then be approximately independent of V. If required the reference voltage may be made a non-linear function of V.
Patent GB-1360245-A (GB)
Title: Lithographic printing plates
IPC: G03F7/06
Filed: 1971-09-23
Abstract: 1360245 Photo-sensitive photo-lithographic materials; printing plates FUJI PHOTO FILM CO Ltd 23 Sept 1971 [24 Sept 1970] 44515/71 Headings G2C and G2M A lithographic printing plate is made by imagewise exposure, development and fixing of a photo-sensitive plate having an aluminium support having a porous oxide layer formed by anodization. The pores of said oxide layer containing photo-sensitive silver halide in such amount that after development and fixing the silver image portions contain more than 1À2g/m<SP>2</SP> of silver. The required quantity of silver halide is formed in the pores by repeated dipping of the plate in alternate solutions of silver nitrate and alkali-metal halide, and by using solutions of as high a concentration as possible. The silver image obtained after development may be treated with a silver salt intensifier and/or the silver image may be converted to silver iodide (using FeCl 3 /KI solution) and a dye absorbed thereon, such as Phenosafranine, Malachite Green,' Pinalcryptol Green or Methyl Violet.
Patent GB-1011864-A (GB)
Title: Device for the supervision of threads, rovings and slivers on textile machines
IPC: D01H13/16
Filed: 1962-11-27
Abstract: 1,011,864. Alarm means for textile machines: stop motions. E. BREUNING. Nov. 27, 1962 [Nov 29, 1961], No. 44804/62. Headings DID and D1F. A device for supervising thread travel on textile machines has a tubular, dust free housing 10 in which are arranged blocking members 8 connected to exploring members 2 which are normally held by threads 1 but when a thread is not supplied, the corresponding exploring member 2 pivots its blocking member 8 so as to fill the interval crosssection of the housing, into a path between a source of energy 5 and an energy detector 7 to generate a signal in the latter. As shown in Fig 1 a source of light 5 and a photo-cell 7 are used: alternatively compressed air (Fig 4 not shown) may be used with an air pressure or air velocity detector to generate an electric signal. The signal produced may be used to actuate an optical or acoustic warning device or to trip a control function possibly to stop the machine.
Patent GB-995212-A (GB)
Title: Improvements in or relating to moulded devitrified glass elements
IPC: C03C10/00
Filed: 1963-11-13
Abstract: <PICT:0995212/C1/1> A moulded glass element is made by mixing a powdered aluminous silicate glass component with a powdered magnesium oxide component, shaping, heating and sintering the mixture, thereby causing the components to react together and to devitrify.  The element contains predominantly one or more of cordierite (2MgO, 2Al2O3, 5SiO2), spinel (MgO, Al2O3), or forsterite (2MgO, SiO2), with or without anorthite (CaO, Al2O3, SiO2).  The aluminous silicate component preferably contains at least 10% by weight of Al2O3, and may consist, in per cent by weight, of SiO2, 54-68; Al2O3 17-27; MgO, 4-12; CaO, 0-10; BaO, 0-1; B2O3, 0-3; TiO2, 0-3; F, 0-0.5; alkali metal oxide, e.g. Na2O + K2O, up to 0.4, and the grain size may be less than 60 m .  The MgO component may contain: MgO, 87.14; SiO2, 3.08; CaO, 1.93, with heating loss of 7.00%, and the grain size may be less than 49 m . The mixture may contain up to 45% MgO. Examples of element specimens A1 to A10 are given whose compositions are indicated in the Figure; the ranges of components are as follows: SiO2, 29.8-52.1; MgO, 47.6-8.5; Al,O3, 13.7-25.2; B2O3, 1.5-2.8; CaO, 6.2-9.7; BaO, 0.5-0.9; Na2O, 0.1-0.3; K2O, 0.1; F, 0.1-0.3.  The aluminous silicate/magnesium oxide mixture is formed by grinding the two powders with an anhydrous medium, e.g. acetone, amyl alcohol or methylated spirit, to less than 5 m , filtered, dried, and forced through a 60 m  mesh screen. 4-8% plasticizing agent, e.g. a cellulose derivative or wax emulsion, is then added. The mixture is then shaped or moulded by means of vacuum continuous extrusion presses or vacuum piston presses. The binder is then burnt out and the elements sintered while horizontal or suspended in furnaces electrically heated in stages up to 1400 DEG  C.  The lowest sintering temperature is 30-50 DEG  C. above the glass softening point. During the sintering step, devitrification occurs.
Patent GB-1273859-A (GB)
Title: Fluid actuator
Inventor: IVEY JOHN SAXON
IPC: F16D25/0638
Filed: 1970-09-22
Abstract: 1,273,859. Friction clutches. BORGWARNER Ltd. 22 Sept., 1970, No. 44999/70. Headings F2C and F2F. An hydraulically applied friction clutch 10, (or brake), e.g. in an automatic transmission, includes a plurality of centrifugally-actuated dump relief valves distributed around the apply piston 19, as shown, or rotating housing 18 and each comprising a metal ball 41 held against a conical seat 38 by the apply pressure in the chamber 21 when the clutch, (or brake), is engaged, the axis of the seat being inclined with respect to the clutch axis so that the clutch may operate at higher speeds without the centrifugal force acting on the ball dislodging it from its seat against the fluid apply pressure. The axis of the output port 37 from each valve may be parallel to the clutch axis.