baber/WOPTO huggingface dataset:
Patent GB-928003-A (GB)
Title: Improvements in or relating to electric lighting fittings
Inventor: HUBBOLD SYDNEY
IPC: F21V21/04
Filed: 1960-12-15
Abstract: 928,003. Electric lighting fittings. GENERAL ELECTRIC CO. Ltd. Sept. 29, 1961 [Dec. 15, 1960], No. 43209/60. Class 75 (4). In a fitting of the type comprising a mainly opaque enclosure for an electric lamp of bulbous shape e.g. an incandescent filament lamp in which the lower part of the enclosure consists of a hollow skirt, part at least of the inner surface of the skirt is lined with one or more strips of flexible material the inwardly directed surface of which is highly absorbent of incident light and is formed with a plurality of parallel ridges in planes at right angles to the axis of the skirt and so arranged that the greater part of the surface of the strip which is observable from below the fitting is shielded against receiving light directly from the lamp. The strips may be made of rubber, neoprene or polyvinyl chloride and may be formed by extrusion, cut to length and secured in place by adhesive. In the form shown, the fitting comprises a casing 1 having an aperture 2 at the top above which is a stirrup 3 supporting a plate 4 carrying the socket 5 for the lamp 6. A skirt 10 is secured to the bottom of the casing 1 and mounted in an aperture in a ceiling 14. A reflector 8 surrounds the lamp 6. The skirt is lined with a strip 17 of neoprene having triangular ridges 18, the upper surfaces of which are horizontal and the lower surfaces inclined at 40 degrees to the horizontal. In a modification, the lamp is mounted in a bell-shaped reflector having a narrow upper portion for enclosing the lampholder and a cylindrical skirt extending from the lower edge and lined with a strip of polyvinyl chloride, the inner surface of which is formed with triangular ridges the upper and lower surfaces each being inclined at 15 degrees to the horizontal. The skirt is mounted in an aperture in a ceiling by means of mounting clamps as described in Specification 928,004.
Patent GB-1312576-A (GB)
Title: Flameproof moisture-resistant coating composition for resistors
IPC: H01C1/034
Filed: 1971-09-16
Abstract: 1312576 Resistors CORNING GLASS WORKS 16 Sept 1971 [25 Sept 1970] 43252/71 Heading HIS [Also in Division C3] A coating composition for electrical resistors comprises by weight 4-24% of a monomethyl, monoethyl, monopropyl or monophenyl polysiloxane resin or copolymer thereof, 10-70% of refractory filler, 2-20% of suspension agent, and 10-50% of organic solvent. There may also be present up to 15% of an inorganic pigment and up to 10% of an alkyl silicate or polysiloxane resin other than the above specified monorganopolysiloxan. Suitable refractory fillers are SiO 2  and Al 2 O 3 , preferably a mixture of these, or ZrO 2 , MgO, Ta 2 O 5 , WO 3 , MoO 3 , SiC, forsterite and spinel, suitable suspension agents are mica and aluminium silicate, preferably a mixture of these, and clays and diatomaceous earth; suitable pigments include TiO 2 , Fe 2 O 3 , Cr 2 O 3  and cobaltous aluminate; suitable solvents include methyl, ethyl and butyl monoethers of ethylene glycol. In the examples compositions are prepared containing ethylene glycol monoethyl ether, a monomethyl polysiloxane, TiO 2 , mica, aluminium silicate, Al 2 O 3 , SiO 2 , and optionally Cr 2 O 3  or cobaltous aluminate, and a commercial polysiloxane resin, "ethyl silicate 40", or a 50% hydrolysed tetraethyl silicate. They are applied to thin-layer resistors.
Patent GB-953199-A (GB)
Title: Process for the production of foamed articles by molding foamable or particulated preformed thermoplastic resinous materials
Inventor: KLINK JOHN DAVID
IPC: C08J9/232
Filed: 1960-12-16
Abstract: Articles of foamable or pre-foamed thermoplastic resinous material may be formed by expanding the material in the presence of water e.g. 10-30% by weight, using dielectric heating, in a resiliently enlargeable or heat shrinkable mould. Suitable materials for use in this process include polymers and co-polymers of styrene, alpha-methyl styrene, vinyl toluenes, aryl mono-and di-chlorostyrenes, and aryl-dimethyl styrenes, methyl methacrylate, ethyl acrylate, vinyl acetate and butyral, ethylene, and cellulose acetate and nitrate.  The material is preferably expanded in a rubber-like resilient mould which exerts a constant restraint on the material.  The material may be wetted before or after filling the mould, which may also be wetted, and to aid the wetting the water may contain a surfactant e.g. a detergent. The temperature of the process may be increased above the boiling point of water by addition of alcohols or glycols, or by the use of vents in the mould which allow a certain pressure to build up before allowing escape of gas. Where non-expanded material is used a blowing agent, e.g. dichloro-, difluoro-methane, alkali metal carbonate or pentane, must be mixed with the material before wetting, and in cases where granular, pre-expanded material is used the moulding is best carried out in a mould which contracts on heating e.g. an envelope of polymerized vinylidene chloride.
Patent GB-1075675-A (GB)
Title: Lathes and similar machine tools
Inventor: BINNS ALAN
IPC: B23Q5/54
Filed: 1963-11-02
Abstract: 1,075,675. Machine tool details. DEAN, SMITH & GRACE Ltd. Nov. 10, 1964 [Nov. 2, 1963], No. 43360/63. Heading B3B. In a lathe or similar machine tool provided with a saddle apron 1 a number of control levers of joy-stick type 3, 4 and 5 are mounted on the saddle in grouped relationship, each lever being provided with a knob or handle 3a, 4a and 5a of different shape.
Patent GB-994675-A (GB)
Title: Digital servo actuators
IPC: F15B11/12
Filed: 1962-11-16
Abstract: 994, 675. Fluid-pressure servomotor systems. CADILLAC GAGE CO. Nov.16, 1962 [Nov.17, 1961], No. 43378/62. Heading G3P. [Also in Division G4] A servo actuator comprises linear positioning means 10 having an output member 20 the position of which is discretely variable in response to control signals applied to the means 10 and which controls a valve 12, valve 12 controlling booster means 14 having a positionable output member 24, and positional feedback means 190 from the booster 14 to valve 12 whereby the output member 24 is moved to a position depending on the position of the output member 20. The linear positioning means 10 has a cylinder containing an end cap 30, pistons 32, 34.50 and output member 20 which is fixed to piston 50. Cap 30 and piston 32.. 50 have hooked extensions such that the distance between any given two adjacent elements 30, 32. . 50 in the cylinder can vary over a fixed range, the ranges being in the ratio 1:1: 2: 2 : 4 : 4. 16: 16 going along the chain of elements 30, 32.. 50. Each chamber between adjacent elements is held in an expanded or contracted condition, i.e. with the two elements as far apart or as close as possible, by solenoid-actuated valves 18 which connect each chamber to a pressure fluid source or return. When connected to a return, the chamber contracts under the influence of a biasing pressure acting on the end piston 50 and supplied via an adjustable orifice 88. The valves 18 are arranged so that in the absence of energizing currents, alternate chambers (ratio 1: 2 : 4.. 16) are contract and the others expanded, so that the output member 20 occupies a neutral position. By energization of selected solenoids, the output member 20 can be moved in either direction from the neutral position by the required amount. The output member 20 is connected to one end of a lever 204 pivoted at 210 to the housing, the other end of lever 204 being pivoted to the mid-point of a lever 224. One end of lever 224 is connected to the control rod 22 of valve 12 and the other end to feedback means 190. The booster means 14 has a double-acting piston 182 (Fig. 4) on a piston rod 180 connected to both output member 24 and feedback means 190. The side of the piston 182 is connected to a pressure fluid source and the other to a return depending on the position of the control rod 22 of valve 12, except when rod 22 is in a mid-position when neither is connected to either. Modifications. The positioning means 10 need not operate around a neutral position, the extension ranges of successive chambers being in the ratio 1: 2 4... The combined actions of several positioning means 10, optionally modified by a manual input, could be used to control value 12.
Patent GB-1246672-A (GB)
Title: Image-bearing slides and slide mounts
Inventor: EAGLE JOHN HOWARD
IPC: G03B23/08
Filed: 1968-09-12
Abstract: 1,246,672. Slides. EASTMAN KODAK CO. Sept.12, 1968 [Sept.12, 1967j, No.43421/68. Headings G2A and G2C. A rod 12 is pushed through slots 9 into apertures 15 of slides 11 to form a magazine 10. Each slide comprises a transparency 17 located by means of a projection 20 between a pair of mounts 13. Notches 16 facilitate stacking of the slides and insertion of the magazine into a projector.
Patent GB-1171050-A (GB)
Title: Improvements in and relating to Floor Door Springs.
Inventor: BUSHELL HENRY ARTHUR
IPC: E05F3/22
Filed: 1968-09-12
Abstract: 1,171,050. Floor door springs. DORMECH (DOORSPRING) Ltd. 12 Sept., 1968, No. 43490/68. Heading E2M. A floor door spring is provided with a blade spring 13 having a recess 12 which cooperates with a projection 11 on a cam 3 attached to the shaft 2 to retain the shaft in a position corresponding to an open position of the door. The holding means may be rendered inoperative by rotating a spindle 14 so that an arm 19 attached to the head 17 of the spindle comes into contact with blade spring 13 and flexes it into a position in which the projections 11 will not engage the recess 12 so that the door will be free to return when the opening pressure is released. The head 17 of the spindle 14 lies just below the cover of the casing and access to the head is by way of an aperture in the cover, this aperture normally being closed by a plug 22 screwed into the aperture and sealed by a sealing ring. The head 17 of the spindle is constructed so that a co-operating turning tool or key can be inserted through the aperture in the cover and coupled with the head to constitute with the arm 19 a two-armed lever that can be operated externally of the appliance with the axis of the spindle serving as the fulcrum of the lever. Modifications which may be made include replacing the arm 19 by a cam or eccentric, replacing the blade spring 13 by a spring-loaded pivoted member, having an additional projection 11 on the cam 3 to hold the door in the closed position, and replacing the recess in the spring by a projection and the projections on the cam by recesses.
Patent GB-1048068-A (GB)
Title: Polyesters
IPC: C08G63/82
Filed: 1965-10-19
Abstract: The free carboxyl content of linear polyesters, e.g. those comprising at least 85 mol per cent of glycol or bisphenol terephthalate units, is reduced by adding to the polyester (after polymerization) a copper salt of a mono- or di-carboxylic acid providing 15-400 parts of Cu per million of polyester, and (at any stage) an alkali metal salt of an anion capable of reducing cupric ions to cuprous, the reducing anion being in molar excess of the Cu salt, and mixing the molten polyester and the additives until the free carboxyl content of the polyester is reduced.  The polyester may derive in part from, e.g., adipic, sebacic, isophthalic, bibenzoic or hexahydroterephthalic acid.  Suitable glycols are ethylene, tetramethylene, neoptentyl and 2,2 - dimethyl - 1,4 - butylene glycols, dimethylolcyclohexane, bis - p - (2 - hydroxyethyl)benzene, 4,41 - bis - (2 - hydroxyethoxy), diphenyl, 1,4 - dihydroxy[2,2,2]bicyclooctanebisphenol A, 2,2-bis(p-hydroxycyclohexyl)propane, 1,4 - cyclohexane diol, 4,41 - dihydroxybiphenyl and (bicyclohexyl)-4,41-dimethanol. Suitable copper salts are the acetate, benzoate, undecylenate, phthalate, stearate, propionate, butyrate, valerate, caproate, caprylate, palmitate, oleate, phenylacetate and terephthalate, and the reducing anion may be iodide, a phosphite, thiosulphate, sulphide, oxalate or formate.
Patent GB-1026112-A (GB)
Title: Antenna system
IPC: H01Q3/46
Filed: 1963-11-11
Abstract: 1,026,112. Aerials. BLASS ANTENNA ELECTRONICS CORPORATION. Nov. 11, 1963 [Dec. 12, 1962], No. 44341/63. Heading H4A. [Also in Division H1] A steerable pencil beam is produced by a horn feed 40 and a reflector 30 comprising a planar array of secondary elements each at one end of a respective straight transmission line containing a longitudinally adjustable reflecting means so that the signal re-radiated by each secondary element is delayed relative to the radiation signal incident thereon, the different reflecting means being relatively adjusted so that the secondary elements focus the radiation transmitted or received by the primary feed in the same manner as a paraboloidal reflector, the orientation of the effective paraboloid (and hence the direction of the beam) being varied by varying the longitudinal positions of the various reflecting means. As described, each secondary element comprises either (1) the open end 32 of a ridge waveguide 34, Figs. 1 and 2, which constitutes the delay line, the apertures 32 being covered by a fibreglass radome 35, Fig. 2; or (2) a dipole 32<SP>1</SP> coupled to a coaxial line 34<SP>1</SP>, Fig. 10, a plane reflector 32<SP>11</SP> being spaced #/4 behind the dipoles 32<SP>1</SP>; alternatively, each secondary element may be a small horn. Each adjustable reflecting means may comprise a sliding metal shorting plunger but as described with reference to Figs. 3, 4, 4A and 5 (not shown), it comprises four shunt diodes uniformly spaced at #/8 intervals along the guide which are selectively rendered conductive by a beam director unit 80 to short-circuit the guide, the resultant effect being that the beam direction is changed in small discrete steps. The beam director unit presents appropriate signals to X and Y scan control generators (Fig. 7, not shown), whose outputs are presented to scan control networks consisting of conventional digital circuitry to provide phase delayed signals along the X and Y axes of the array through a flip-flop controlling the condition of the diodes in the guides 34 (Fig. 8, not shown). An additional digitally controlled signal (Fig. 9, not shown), may be provided between the binary circuit and the flip-flop to provide spherical correction. A plurality of separate feeds 40 may be used in conjunction with a single reflector 30 and in order to provide hemispherical scanning three separate systems 30-1, 30-2 and 30-3 may be arranged as shown in Fig. 11 and Fig. 12 (not shown).
Patent GB-975950-A (GB)
Title: A feed hopper for feeding material to a cupola furnace
IPC: C21B7/18
Filed: 1960-12-30
Abstract: 975,950. Feeding material to furnaces. ZAVODY, V.I. LENINA PLZEN, NARODNI PODNIK. Dec. 30, 1960 [Jan. 14, 1960], No. 44741/60. Heading B8A. Material is fed to a furnace from hopper 50 by a walking beam 51. The walking beam consists of bars 2 which carry projections 4 and are disposed in slots in the bottom of the hopper. The beams are carried at one end on pivots 3 and at the other end rest on respective eccentric cams 5 formed on rotating shaft 6 and driven by motor 7. The series of cams 5 are angularly displaced along the length of shaft 6 so that the bars 2 are moved individually in turn to displace the material upwards out of the hopper into the furnace.
Patent GB-1082536-A (GB)
Title: Improvements relating to an apparatus for regulating the pressure in plasticised material in a screw extruder for thermoplastic synthetic resins
IPC: B29C48/92
Filed: 1964-11-03
Abstract: 1,082,536. Extrusion moulding machines. BARMER MASCHINENFABRIK A.G. Nov. 3, 1964 [Nov. 13, 1963], No. 44818/64. Heading B5A. In an extrusion moulding machine, a device for varying the pressure on the plasticized material, in particular thermoplastic synthetic resin, during its passage from the feed screw to the die, comprises a rotatable throttle 8, 9 having an eccentrically shaped aperture 18, 12, part or all of which together with a fixed plate 17 determines the cross-section of the flow depending on the angular position of the throttle. The aperture, at a minimum in Fig. 2, increases through all positions of the throttle 8, 9 to a maximum, Fig. 3. Movement is facilitated by a handle 15 which is screwed into the appropriate socket 14 and the throttle is held by a screw 13. Fig. 1 (not shown) corresponds to Fig. 2, portion 8 forming an inner surface flush with portions 2 and 3 when turned to the maximum position. A heater 5 is provided.
Patent GB-1216678-A (GB)
Title: Self-cleaning gas oven
IPC: F24C15/20
Filed: 1967-10-02
Abstract: 1,216,678. Gas fired heat cleaned oven; thermal regenerators. INSTITUTE OF GAS TECHNOLOGY. 2 Oct., 1967 [30 Sept., 1966; 23 Nov., 1966], No. 44836/67. Headings F4K and F4W. A gas fired oven is heat cleaned by heating the cavity to beyond the normal temperature of operation, and utilizing the heat derived from the hot exhaust gases to attain the high temperatures required. The air required for combustion and to heat clean a cooking oven is delivered by a fan 19a through a rotary regenerator 5, the gases exhausted from the oven by a second fan 19 passing through the other side of the regenerator 5. The burner in the oven may be non-aerated, or it may be wholly or partially aerated. The fans 19, 19a and the regenerator 5 may continue to run after the gas supply is shut off. The oven may have more than one burner, and the inlet and outlet passages 15, 13 the fans 19, 19a are mounted in a housing at the rear of the oven, the exhaust gases delivering over the cooker top-plate. The regenerator 5 is cylindrical and may be of rolledup corrugated material of honeycomb design Fig. 3; and may comprise asbestos, asbestos impregnated with sodium silicate or ceramic. The seals 12 are of glass fibre.
Patent GB-1172905-A (GB)
Title: Liquid Dental Preparations
IPC: A61K8/21
Filed: 1967-09-05
Abstract: 1,172,905. Liquid dental preparations. COLGATE-PALMOLIVE CO. 5 Sept., 1967 [15 Sept., 1966 (2)], No. 45016/68. Divided out of 1,172,904. Heading A5B. Liquid dental preparations, e.g. mouthwashes, rinses and liquid dentifrices comprise a water-soluble long-chain (C 8  to C 25 ) olefin sulphonate detergent and a mixture of water and alcohol in a ratio of 1:1 to 20:1 by weight. Flavours, colours, preservatives, emulsifiers, silicones, chlorophyll compounds, antibiotics such as. macrolides, smoothing adjuvants and bacteriostatic agents may also be present, as may water-soluble fluoride compounds such as NaF, KF, SnF 2  and sodium monofluorophosphate.
Patent GB-1067016-A (GB)
Title: Improvements in and relating to hatchway covers
IPC: B63B19/203
Filed: 1964-11-05
Abstract: 1,067,016. Hatch covers. J. G. BROWN. Feb. 2, 1966 [Nov. 5, 1964], No. 45100/64. Heading B7S. [Also in Division E2] Each section of a hatchway cover comprises a power-activated panel (10), Fig. 3 (not shown), hinged at (11) at one side of the hatchway, a trailing panel (15) and a relatively narrow intermediate panel (16), the three panels being articulated relative to each other and having intermeshing toothed quadrants (17) projecting from the adjacent sides of the activated and trailing panels. Lugs (18) extending downwardly from links (13) and tie-rods (19), one end of each of which works in slots (20), form trusses which support the panels (10), (15), (16) in their closed position and maintain the intermediate panel (16) in a substantially horizontal position during the opening and closing of the panels. Chains or cables (24) may take the place of tie-rods (19) and the panels may be raised hydraulically or otherwise.
Patent GB-1152450-A (GB)
Title: Improvements in or relating to 3-Desoxy-16-Methylene-Pregnenes and Pregnadienes
IPC: C07J5/00
Filed: 1966-10-11
Abstract: 1,152,450. 3 - Desoxy - 16 - methylene - pregnane compounds. SYNTEX CORP. 11 Oct., 1966 [22 Oct., 1965], No. 45404/66. Heading C2U. Novel steroids of the formula (wherein R is H or CH 3 ; R<SP>1</SP> is H, Cl or F; R<SP>2</SP> is H or acyl; R<SP>3</SP> is H, CH 3 , Cl or F; and Z is an optional #<SP>6</SP> double bond) are prepared from #<SP>5,16</SP>-pregnadien-3#-ol-20-one or the 19-nor compound by either oxidizing to the #<SP>4</SP>-3-ones, converting these via the 16α,17α-pyrazolines to the 16-methyl compounds, converting these to the 16α,17α-epoxides and splitting these to give the 16-methylene-17α-ols or their acylates or by converting the starting materials via their 5α,6α-epoxides, the 20-keto group being protected by ketalization, to the 5α-hydroxy-6#- methyl, chloro or fluoro compounds, removing the ketal protecting group, converting to the 16-methylene-17α-ols or their acylates via the 16-methyl and 16α,17α-epoxy compounds and oxidizing the products to give the 6-substituted #<SP>4</SP>-3-ones, the 3-keto group then being removed from these and the 6-unsubstituted compounds via the #<SP>4</SP>- or A<SP>4</SP>'<SP>6</SP>-3-thioketals (the #<SP>6</SP> double bond having been previously introduced). 21-Halo substituents may be introduced at any stage via the 21-iodo compounds and, optionally, the 21-acetates and 21-mesylates. 17-Acylates may be prepared directly in the 16α, 17α-epoxide splitting stage or subsequently by direct acylation, any 3-enol acylates formed being hydrolysed. A 6-halo substituent may also be introduced into the 16-methylene-#<SP>4</SP>,<SP>6</SP>-3-ones via the 6α, 7α-epoxides and 6α-halo-7α-hydroxy compounds, the 3-keto group being subsequently removed via the #<SP>4</SP>'<SP>6</SP>-3-thioketals.
Patent GB-1082107-A (GB)
Title: Process for the production of flat or curved sheets of glass
IPC: C03B11/08
Filed: 1965-10-27
Abstract: <PICT:1082107/C1/1> A process for the production of flat or curved glass sheets of predetermined dimensions and shape, with fire-polished surfaces and rounded edges and of a thickness of 2 to 6 mm. comprises casting liquid glass 1 in a mould 2 closed by a correspondingly-shaped plate 5 which exerts a substantially uniform pressure over the upper surface of the glass layer, the mould and the plate being formed of a material which is not wetted by liquid glass, e.g. graphite, and solidifying the layer of glass by rapidly cooling the surfaces substantially symmetrically and uniformly.  The moulding and cooling operations preferably take place in separate compartments of a chamber in an atmosphere of non-oxidized gas, e.g. nitrogen. The rapid cooling of the glass layer is carried out by directing jets of a non-oxidizing gas such as nitrogen from a series of tubes 8, 9, 11, 12 against the outer faces of the plate 5 and mould 2.  The rate of cooling of the two faces of the layer can be equalized to avoid deformation of the finished glass sheet.
Patent GB-1116637-A (GB)
Title: Anchoring means for flexible or resilient bodies
IPC: F15B1/16
Filed: 1965-10-27
Abstract: 1,116,637. Joint making packing; pressure resisting doors; pipe joints. OLAER PATENT CO. 27 Oct., 1965 [16 Nov., 1964], No. 45549/65. Headings F2B, F2G and F2P. [Also in Division F1] A resilient seal 27<SP>1</SP> has a bead disposed in an annular groove formed in a fitting 15 closing the end of a pressure accumulator body 10, and at least one passage 28<SP>1</SP> is provided in the fitting 15 for communicating the pressure within the separator to the groove to thereby force the bead into sealing engagement with the adjacent surfaces of the body 10 and the fitting 15. The seal 27<SP>1</SP> has a concave portion 22 which provides a smooth surface between the body 10 and the fitting 15.