baber/WOPTO huggingface dataset:
Patent GB-1247526-A (GB)
Title: Improvements in or relating to hot-melt coating
Inventor: FUERHOLZER JAMES JOSEPH
IPC: B32B37/00
Filed: 1968-11-27
Abstract: 1,247,526. Laminates. MORTON INTERNATIONAL Inc. 27 Nov., 1968 [29 Nov., 1967], No. 56301/68. Heading B5N. [Also in Division B2] A substrate is coated with a coating composition comprising a polyolefine by applying to the substrate on the surface to be coated a primer comprising a hydrolysed copolymer derived from one or more olefine monomers and one or more vinyl alcohol ester monomers and applying the coating composition to the primed surface by extruding a hot melt thereof which is maintained at a temperature below that at which the polyolefine becomes susceptible to oxidation or degradation. The olefine monomers may be C 2 -C 6  olefines, e.g. ethylene, propylene, butylene, isobutylene and 1-hexene. The ester monomer may be vinyl acetate. The hydrolysed copolymer may be reacted with an organic isocyanate. The substrate may be a flexible packaging material, e.g. Kraft paper, paperboard, glassine, aluminium foil, polypropylene film, regenerated cellulose, polyamide film, polyester, e.g. polyethylene terephthalate, cellulose acetate, polyvinyl chloride and polyvinylidene chloride. The substrate may be primed by spraying, slushing, immersing, roller coating. The polyolefine may be polyethylene, polypropylene, polybutene, copolymers of ethylene or propylene with each other or with vinyl acetate, acrylic acid, methacrylic acid, methylacrylate, ethylacrylate, isobutylacrylate, vinyl chloride, methyl methacrylate, tetrafluoroethylene, butene-1, or ionomer olefine copolymer resins such as ethylene-acrylic acid copolymers, or ethylene-ethylacrylate-acrylic acid terpolymers. In Fig. 1 the substrate material is fed from a substrate roll to the primer application station and the prime-coated substrate is then passed through a drying zone and thence over a combining roll where a curtain of extruded polyolefin resin falls on to the primed substrate. The coating material and substrate are then passed through the nip form by the combining roll and a chill roll whereby a polyolefinecoated substrate is formed.
Patent GB-1157965-A (GB)
Title: Door Closing and Check Appliances
Inventor: EDGLEY NORMAN HAROLD
IPC: E05F3/10
Filed: 1966-12-20
Abstract: 1,157,965. Spring door closer with check device. WILLIAM NEWMAN & SONS Ltd. 23 Feb., 1968 [20 Dec., 1966], No. 56852/66. Heading E2M. In a spring door-closing and check appliance comprising a horizontal fluid filled cylinder 1, containing compression springs 3 and a sliding piston reciprocated from a vertical spindle 5 by a pinion 6 on the spindle engaging rack teeth 7 on the axially offset connecting bar 4, fluid resistance to the closing movement of the door is regulated by a cylindrical regulating pin 9 carried rotatably in a central aperture of a screwed plug 8 which closes the end of the cylinder towards which the piston moves during the closing of the door. The pin 9 extends axially into the cylinder and through a central bore in the front head 21 of the piston, and is formed in its periphery with a longitudinal tapering resistance groove 10 extending from its free end towards the plug 8, the groove becoming shallower and narrower in a direction towards the plug. The resistance groove 10 cooperates with an Oblique concave recess 11 in the outer end of the front head 2' of the piston, so that by turning he pin 9 the resistance offered at any particular position of the piston can be varied. The regulating pin is provided with another longitudinal groove 14, closed at both ends. As the piston approaches the end of its stroke, corresponding to the last portion of the closing movement of the door, the groove 14 comes into communication with the 'radial passage 15 in the piston head, and thus with an escape groove 16 in the periphery of the piston head, relieving the fluid resistance, and enabling the door to close with a sufficiently strong movement to overcome the latch resistance.
Patent GB-1381731-A (GB)
Title: Easels
IPC: A47B97/02
Filed: 1971-12-09
Abstract: 1381731 Easels; roll holders LEW-WAYS Ltd 21 Dec 1972 [9 Dec 1971] 57176/71 Headings A4G and A4H [Also in Division B6] An easel comprises supporting legs 18 pivoted in bearings 16 on the ends of the board 10, the legs 18 being maintained in the erect position as shown by a spindle 24 releasably mounted in brackets 22 on the legs 18, the spindle 24 carrying a roll 28g paper or the like so that an end portion thereof can be pulled over the front surface of the board and held there against by a pair of springy metal strips (32) each held to the board by a rolled end 34 and each providing a knife edge for severing the paper. When the spindle 24 is removed, the legs 18 can be folded flat against the rear surface of the board. The board may be supported on the legs 18 only at a shallow angle see Fig. 3 (not shown).
Patent GB-1201918-A (GB)
Title: Improvements in or relating to valves for pressurised dispensers
Inventor: WARREN WILLIAM EDWARD
IPC: B65D83/14
Filed: 1966-12-21
Abstract: 1,201,918. Delivering measured quantities of liquid. BESPAK INDUSTRIES Ltd. 21 Dec., 1967 [21 Dec., 1966], No. 57287/66. Heading B8N. [Also in Division F1]; An aerosol metering valve for use with a container for pressurized liquid comprises a metering chamber 3 and a valve member 7 movable in resilient seals 4, 6 between an inoperative position in which the metering chamber is isolated from atmosphere and an operative position in which the contents of the metering chamber can be discharged to atmosphere while the chamber is isolated from the interior of the container. As shown the valve member 7 is formed with two inlet ports 13, 14 connected by a cavity 16 and an outlet port 11 so that upon depressing the valve the port 13 first communicates with the interior of the container so that the liquid flows into the measuring chamber via the cavity 16 and port 14, upon further depression of the valve the port 14 is closed and the port 11 is brought into communication with the measuring chamber so that the liquid is dispensed therefrom. In modifications the cavity 16 may be replaced by a recess (20, Fig. 2) or the port 14 may be connected to an axial passage extending downwardly through the valve member. The resilient seal 4 may be mounted on a frustoconical shaped seating (Fig. 3).
Patent GB-1292847-A (GB)
Title: Processing tank for photographic film sheets
IPC: G03D3/13
Filed: 1969-11-24
Abstract: 1292847 Photographic processing apparatus AGFA-GEVAERT A G 24 Nov 1969 [22 Nov 1968] 57370/69 Heading G2A A processing tank 1 for photographic film sheets 3 includes transport rollers 3 arranged to transport film sheets along a curved film path through the tank, a single guide roller 5 located so as to engage film sheets only on the convex side of a curved section of the film path in advance of a pair of co-operating transport rollers and arranged to guide the leading edges of the film sheets to the contact gap of the pair of transport rollers and deflecting means 4 arranged so to guide the leading edges of the film sheets to the guide roller that the leading edges are subsequently guided by the guide roller back to the film path, the deflecting means being further arranged so that as the leading edges of the film sheets pass over the guide roller the film sheets cease to be in contact with the deflecting means. The guide roller may be driven at the same peripheral speed as the transport rollers or the guide roller may be freely rotatable and driven by peripheral contact of a leading edge of a sheet.
Patent GB-1456678-A (GB)
Title: Hopper with elevated gate
IPC: C10B31/04
Filed: 1973-12-14
Abstract: 1456678 Charging coke ovens BRITISH STEEL CORP and BRITISH STEEL CORP (CHEMICALS) Ltd 12 Dec 1974 [14 Dec 1973] 58082/73 Heading F4B A coke oven hopper has a valved aperture 17 and a chute 16 interposed between the aperture and the oven charge hole 10. The cross-sectional area of the valved aperture and the slopes of the hopper wall are chosen in relation to the particle size and moisture content of the coal so that when the valve is opened mass flow of coal from the hopper will be initiated.
Patent GB-1175072-A (GB)
Title: Apparatus for Repeatedly Dispensing Amounts of a Fluid into Containers
IPC: G01F11/02
Filed: 1966-12-29
Abstract: 1,175,072. Filling containers. AZIONARIA CONSTRUZIONI MACCHINE AUTOMATICHE A.C.M.A. S.p.A. 29 Dec., 1966 [31 Dec., 1965], No. 58086/66. Heading B8T. [Also in Divisions F1 and G1] Containers 7 are filled with a predetermined quantity of liquid from a tank 4 by means of a turret mechanism having pistons 8 the throw of which is adjustable, to vary automatically the quantity dispensed, under the control of a temperature-sensing device in the tank. A shaft 2 of the turret and a conveyer chain 6 for the containers are driven synchronously. A ball (12), Fig. 2 (not shown), on the upper end of each piston rod 9 travels in a cam guide 13 capable of being pivoted about a hinge 14 by the rotation of a shaft 28 and a rack and pinion device 24-27. The shaft 28 is turned by means of a crown wheel 40 which is fixed to it and engaged by a worm 36 journalled in a casing 31 freely rotatable on the shaft 28. A hand wheel 39 allows the cam guide 13 to be pre-set according to the quantity of liquid required. Automatic adjustment in use is provided by means of a thermistor in a probe 46 in the tank 4, which governs an electrical device 44 through an amplifier 45. A motor in the device 44 turns a shaft 43 carrying fixedly a cam guide 35. The casing 31 has an arm 33 which has a pin 34 movable in a guide slot 135, so that as the guide 35 is turned in response to a change in the temperature of the liquid in the tank 4, the casing 31 transmits motion through the members 36, 40 to the shaft 28 and thereby adjusts the liquid dispensed. The profile of the slot 135 is designed to compensate for changes in the density and viscosity of the liquid dependent on its temperature. A pointer 47 fast with the shaft 43 and a second pointer 41 fast with the shaft 28 indicate the compensations effected.
Patent GB-1446748-A (GB)
Title: Electrophotographic copying apparatus
IPC: G03B27/62
Filed: 1973-12-14
Abstract: 1446748 Line-by-line copier FUJI XEROX CO Ltd 14 Dec 1973 [27 Dec 1972] 58181/73 Heading G2A In an electro-photographic copier employing line-by-line scanning by a pair of light tubes 21 in a housing 20 moving along rails 22, the scanned width of an original 12 on a transparent platen 10 may be reduced by lowering a plate 18 having a slit aperture on to housing 20 by the retraction of a solenoid 16 (from the position shown in Fig. 4). Plate 18 has an engaging member 19 which releasably engages one vertical wall 20a of housing 20. Plate 18 may be of reflective or light-absorbing material on the side facing tubes 21.
Patent GB-1366880-A (GB)
Title: Dispensing assembly for shaped articles of sheet material
IPC: B65D83/08
Filed: 1970-12-09
Abstract: 1366880 Packages R J BEECHAM 31 Jan 1972 [9 Dec 1970] 58437/70 Heading B8C Shaped articles 16 of sheet material such as thermoplastics are cut out from a sheet with frangible bridging elements 26 connecting the article to a waste portion 17. Portions 17 are pierced and secured to each other so that the articles comprise a stack which may be suspended from pins for tear-off dispensing. Thermoplastics articles are pierced at portions 17 with a heated iron. the portions 17 are secured to a card 19 which is inserted in a carton as in Fig. 2. The articles may be made by winding a roll sheet material on to a drum, cutting through the wound layers to form the two portions, and piercing the portions 17, and withdrawing the roll from the drum.
Patent GB-1431724-A (GB)
Title: System for acquiring processing and displaying information
IPC: G01R13/34
Filed: 1973-12-18
Abstract: 1431724 Cathode-ray tube displays TEKTRONIX Inc 18 Dec 1973 [8 Jan 1973] 58502/73 Heading H4T The invention is concerned with an oscilloscope in which input waveform information comprising X and Y analogue quantities together with Z axis information and alpha-numeric data may be displayed in real-time or may be digitized, stored in a memory and after any required processing, e.g. by a computer, reconverted to analogue form and displayed. The display device of the oscilloscope may comprise a cathode-ray tube or a pen recorder. Fig. 2, shows the general arrangement in which real-time vertical and horizontal information inputs 14, 16 are supplied to switches 32, 34 and to respective sample and hold circuits 18, 20 supplying respective A/D converters 22, 24 the outputs of which comprising data (Y- axis) and address information (X-axis) are stored in a memory 25. The stored information is then processed by a digital computer 27 and reconverted to analogue form in D/A converters 28, 30 the outputs of which are supplied selectively via switches 32, 34 selectively with the real time information to the display device 35. Fig. 3 shows a detailed block diagram of the system comprising an acquisition unit 50, a processing unit 51, a display unit 52 and an external computer 53, units 50 and 52 forming a conventional oscilloscope when connected together. The acquisition unit 50 includes two vertical channel units 60, 62 (e.g. comprising attenuators and switched gain pre-amplifiers) supplied with information, e.g. via a probe or coaxial cable, and two horizontal channel units 64, 66 supplying a plurality of selectable time base sweep signals and also comprising amplifier channels for signals to be displayed on the horizontal axis, the required outputs being selected by respective channel switches 63, 67. Such selected outputs are supplied to respective sample and hold circuits 75, 74 in processing unit 51 which receive clock pulses from an A/D converter 77 (the clock input to 74 being delayed in delay 78 to compensate for the inherent delay in the start of the time base sweep) and the samples after conversion to digital form in A/D converter 77 are stored in memory 82. The acquisition unit 50 also includes an Z-axis generator and a read-out circuit 69 (providing alpha-numeric data). In operation, under the control of logic circuitry the data in memory 82 is interchanged with and when required, modified by, computer 53 and then routed via a display generator 90 of known type and which includes D/A converters, to the display unit 52 via channel switches 71, 72 through which the real-time information may also be routed to the display. The alphanumeric data from read-out circuit 69 (derived from the computer via read-out interface 83 and input-output interface 85) comprises X, Y and Z-axis data and on command such data is fed directly to the display unit 52.
Patent GB-1186117-A (GB)
Title: Method of Treating Kaolin.
IPC: D21H19/38
Filed: 1967-12-22
Abstract: 1,186,117. Treating kaolin. GEORGIA KAOLIN CO. 22 Dec., 1967 [30 Dec., 1966], No. 58539/67. Heading C1A. A kaolinite of improved brightness and whiteness is produced by slurrying the degritted crude clay and bleaching with a hydrosulphite bleach (sodium hexametaphosphate may be used as a dispersing agent in forming the slurry); the bleached clay is redispersed and subjected to attrition grinding, and fractionated to recover a fraction of more than 90% by weight below 2Á spherical diameter; this fraction is redispersed and selectively flocculated, preferably using a polyacrylamide agent, at an alkaline pH; the flocculated portion is recovered and bleached with a peroxide (e.g. H2O2) at an elevated temperature (e.g. 60-70 C.), and the peroxide-bleached clay may be further bleached with hydrosulphite at an acid pH before drying at an elevated temperature (e.g. about 90 C.).
Patent GB-1284408-A (GB)
Title: Improvements in or relating to variable rate spring devices in governor mechanisms
Inventor: HOWARD JOHN ALFRED
IPC: F02D1/12
Filed: 1968-12-11
Abstract: 1284408 Leaf springs SIMMS MOTOR UNITS Ltd 5 Dec 1969 [11 Dec 1968] 58800/68 Heading F2S [Also in Division G3] A variable rate spring 16, loading a governor 14 in a fuel pump 10, is backed by a roller 20 located in a lever 21 which can be rotated by a lever 23 to vary the force exerted by the spring, and a ramp 18, which is pivoted with the spring at 17, has a surface 19 along which the roller moves, the ramp comprising a further surface 24 acted upon by a roller 25 mounted on a stem 26 of a fluid-pressure device 29 to control the angular position of the ramp member 18. In the Figure, the device 29 comprises a piston 28 moved against a spring 30, by a fluid supplied through a conduit 32, conveniently from the lubricant pump of the associated engine. Alternatively a valve can be fitted in the conduit 32, which can be arranged to be operated by the gear selector of a multi-ratio gearbox, to vary the maximum power output of the engine in different gears.
Patent GB-1274780-A (GB)
Title: Coloured glass exhibiting phototropic properties
Inventor: RENTSCH JUERGEN
IPC: C03C3/089
Filed: 1970-12-11
Abstract: 1,274,780. Coloured phototropic glass. JENAER GLASWERK SCHOTT & GEN. VEB. 11 Dec., 1970, No. 58930/70. Heading C1M. Coloured glass which is phototropic is formed by adding to a borosilicate glass or a borate glass containing silver halide 0À0015-0À05% by weight of at least one element selected from V; Cr; Mn; Co, the individual elements being in an electropositive valency state and the total concentration of Cr and Co not exceeding 0À02% by weight of the total. Further variations in colour may be obtained by the addition of 0À001-0À1% Se or S or 0À001-0À01% Te. Base glasses are given as follows in percentages by weight in which Me<SP>1</SP> signifies at least one of Li, Na, K, Rb and Cs and wherein up to half the Cl may be replaced by Br and/or I, in which Melt signifies at least one of Na, K, Rb and Cs and wherein up to half the Cl may be replaced by Br and/or I. Examples are given with the following colours: brownish-yellow; red-orange; greenish-yellow ; grey-blue and greenish-blue.
Patent GB-1454418-A (GB)
Title: Thermal excess-current cut-out
IPC: H01H83/22
Filed: 1973-12-20
Abstract: 1454418 Thermal switches LICENTIA PATENT VERWALTUNGS GmbH 20 Dec 1973 [22 Dec 1972] 59133/73 Heading H1N A thermal excess current cut-out comprises three bimetal strips 14, 15, 16, which can be heated by the current, through heating elements 17, 18, 19, in three adjacent chambers 11,12,13, of a housing 10, the walls between centre chamber 12 and the two outer chambers 11, 13, being double-walled 23, 25, 24, 26, with their hollow spaces 27, 28 open to atmosphere. The outer walls of the outer chambers 11, 13 are also double-walled forming chambers, but these chambers are not open to atmosphere.
Patent GB-1330478-A (GB)
Title: Continuous reaction of silicon or ferro silicon with a hydrogen halide
IPC: F27B15/16
Filed: 1970-12-16
Abstract: 1330478 Continuous reaction silicons with hydrogen halides DEUTSCHE GOLD - UND SILBER-SCHEIDEANSTALT 16 Dec 1970 [23 Jan 1970] 59685/70 Heading C1A Silicon halides or halogen silanes are prepared by the continuous reaction of particulate silicon or ferrosilicon with a hydrogen halide in a reactor 1 in which the Si containing material 2 is supported on a vibratable grid 3, and the layer of ash 9 formed on the grid during the reaction is discharged therefrom by intermittently vibrating the grid so that the temperature in the ash layer at a point above the grid (measured at 10) is maintained within a predetermined range, e.g. 200-600 C. SiCl 4  may be prepared by injecting HCl gas at 4 into a bed of a Fe-Si alloy containing 89-91% Si, producing temperatures of 800-1200 C. in reaction zone 5. The gaseous reaction product issuing from the reactor at 6 can be fed back into the reactor at 7 to cool the reaction mass.
Patent GB-1445356-A (GB)
Title: Centrifugal pump
IPC: F04D9/02
Filed: 1973-12-27
Abstract: 1445356 Centrifugal pumps CHEMIEANLAGENBAU-UND MONTAGEKOMBINAT LEIPZIG VEB 27 Dec 1973 [28 Dec 1972] 59859/73 Heading F1C A centrifugal pump for conveying liquids with a high gas content comprises a disc having impeller blades 5, a series of apertures 2 in the disc communicating the inlet of the pump with secondary blades 3, the secondary blades extending radially beyond the impeller blades, and the apertures being formed such that their cross-section decreases the further they are out radially of the pump and/or their relative spacing increases radially outwardly Fig. 4, (not shown). A gas discharge channel 6 is located between the blades 3 and a discharge conduit 10 to vent gas separated out from the liquid. A throttle 11 is provided in the conduit 10. The invention may be applied to double-inlet impellers Figs. 3 and 4, (not shown).
Patent GB-1375030-A (GB)
IPC: H03H7/24
Filed: 1972-12-29
Abstract: 1375030 Gain control DEFENCE SECRETARY OF STATE FOR 29 Dec 1972 [29 Dec 1971] 60303/71 Heading H3T  An amplifier stage having a switchable gain compises an amplifier 1, Fig. 1, having a signal input and an output, a potential divider 5 having a first end connected to the output of the first amplifier and the second end connected to a source of constant voltage via a switch 9, the lapping point on the potential divider being connected to form either an output connection for the amplifier stage or a negative feedback connection. In an embodiment, a chain of such circuits is used. Each amplifier has an in-phase input to which signal is applied and also an outof-phase input to which negative feedback is applied. The arrangement is terminated by an amplifier 13 followed by a single-ended complementary pair push-pull output stage 14, 15: a potentiometer 16 across the output 18 provides negative feedback to the out-of-phase input of amplifier 13. Switch 17 when opened increases the amount of feedback. The potentiometers 5-8 may be preset to give predetermined attenuations when the corresponding switches 9-12 are closed, e.g. 2, 4, 8, 16 dB respectively: the switches 9-12 then comprise ganged 16- position switches so connected that the attenuation may be varied in 2dB steps between 0 and 30dB (Fig. 2, not shown). In a modification, an additional potentiometer 20, Fig. 3, is provided, from the tapping of which the negative feedback is taken. The switch 9 has three positions, giving respectively attenuation, zero gain, and a gain predetermined by the setting of potentiometer 20.
Patent GB-2002658-A (GB)
Title: Heat exchangers
IPC: F28F9/02
Filed: 1978-08-10
Abstract: A method of assembling the parts of a heat exchanger, in which a pipe bundle is lowered into an open-topped vessel, and a wall of the bundle is secured to the wall of the vessel by welding. Prior to placing the bundle in position, a sealing ring is provided around the bundle between the outer periphery of a circumferential wall thereof and the inner periphery of the wall of the vessel, which ring hermetically seals the annular opening between the pipe bundle and the wall of the vessel after the bundle has been placed in position. The sealing ring is desirably made of a deformable material having suitable dimensions to be compressed axially between an outwardly extending wall portion of the pipe bundle and an inwardly extending wall portion of the vessel when the pipe bundle is fully lowered into the vessel. The seal ring may be made of material which melts at the operating temperature of the heat exchanger and can be thereby eliminated after welded joint has been tested satisfactorily. The method is particularly applicable to the assembly of heat exchangers for sodium-cooled nuclear reactors, in which case the seal is made desirably from solidified sodium.