baber/WOPTO huggingface dataset:
Patent GB-1410008-A (GB)
Title: Electricallyinductive windings
IPC: H01F5/04
Filed: 1971-10-01
Abstract: 1410008 Electromagnets; conductor insulation; ignition coils BANKFIELD ELECTRICALS Ltd 19 Sept 1972 [1 Oct 1971] 45926/71 Headings H1P and HIT A solenoid switch comprises a plastic element 2 riveted to a ferromagnetic metal element 1 housing a winding 3 and a movable contact 4 retained by spring 18 on a shoulder of a plunger armature 5 to engage fixed contacts 6, 6a bolted to exterior terminals. A conductive partition 8 divides the interior into two chambers and is apertured for the armature, slotted for location with an inward projection of element 2, and drilled for a connection to one end of the winding. The solenoid is carried by a brass former 11 positively connected into the partition 8 and retained by resilient washer 12 connecting to element 1, and the winding comprises a coiled strip of aluminium foil coated on one side with uncured plastic, e.g. epoxy or phenolic resin. After winding the coil is cured by baking or current energizing the turns and is cooled to solidify into a continuous block; one end being connected over former 11, partition 8 to element 1. The other end is connected to a further terminal (not shown) over a lead passing through the guide plate with sleeve insulation and connected to the winding two turns below its surface by adhesive conductive foil (Fig. 4, not shown). Primary and secondary windings may similarly be wound separately or in bifilar manner, with insulating coatings therebetween. Heat resisting insulant may be interposed between turns, or the insulant may be a precured layer with a further uncured layer thereupon. The ends of the windings may respectively be brought out to terminals, and connected in common to conducting former. One winding may be of normal copper wire. The coil arrangement is applicable to dynamo field windings or to ignition coils, in which one winding may be of conventional copper wire, and may be wound in a desired configuration over a dummy pole before curing.
Patent GB-1510007-A (GB)
Title: Projection of images
IPC: H01L21/30
Filed: 1975-11-06
Abstract: 1510007 Projection printing INTERNATIONAL BUSINESS MACHINES CORP 6 Nov 1975 [21 Dec 1974] 45983/75 Addition to 1315256 Heading G2A In the apparatus of the Parent Specification, wherein a support means holds in fixed relationship an image-bearing master plate and a photosensitive receiving plate and positioning means selectively moves the support means in X and Y directions with respect to an optical projection system for projecting a section of the master image on to the receiving plate, the support means holds the master plate (e.g. mask) and receiving plate (e.g. wafer) in back-to-back relationship. The support means is supported on a pair of spaced guide surfaces having a spacing many times greater than the distance between the outer surfaces of the master and receiving plates. As shown, a support means in the form of a carrier 80 which is transported with respect to an optical system by raster scanning means, not shown, carries holder plates 85 and 86 for the suction attachment of a mask 40 and wafer 50, respectively, and has air bearings 90 and 92 which are very widely spaced relative to the distance between the mask and wafer. Plate 86 is aligned with respect to plate 85 by three servo-motors, servomotor 82 only being shown. The optical system has a light source 21 and comprises semi-transparent mirrors 28, 35 and 36, an optical path 30 which has a hexagonal or rhombic light aperture 32 and which passes through an aperture in carrier 80, two microscope objectives 42 and 43 having automatic focusing means in the form of focus detectors 60 and 61 and servomotors 64 and 74, and an eyepiece 63.
Patent GB-1466457-A (GB)
Title: Process for removing nitrogen oxides from gas streams
IPC: B01D53/02
Filed: 1974-10-25
Abstract: 1466457 Removing nitrogen oxides from gas streams MITSUI MINING & SMELTING CO Ltd 25 Oct 1974 [31 Oct 1973 9 May 1974] 46389/74 Heading B1L Nitrogen oxides are removed from gasstreams by contact with particulate electrolytic manganese dioxide. The manganese dioxide is desorbed by eluting with water or an aqueous alkali and drying. The gas stream may also contain carbon dioxide and sulphur dioxide.
Patent GB-1358068-A (GB)
Title: Continuous manufacture of alkali metal salts of amino polyacetic  acids
IPC: C07C/
Filed: 1971-10-06
Abstract: 1358068 Amino polyacetic acids BADISCHE ANILIN- & SODA-FABBIK AG 6 Oct 1971 [7 Oct 1970] 46435/71 Heading C2C [Also in Division G1] Alkali metal salts of amino polyacetic acid<SP>s</SP> are prepared from formaldehyde and an alkali metal cyanide or from formaldehyde, a non- aromatic diamine or triamine and an alkali metal cyanide in aqueous solution at elevated temperature in at least two reaction zones conheated in cascade, the formaldehyde solution and (where used) the stoichiometric amount of a solution of the amine being passed to the first zone or zones and the alkali metal cyanide solution being simultaneously metered thereto under the control of a potentiometric cell or cells such that the alkali metal cyanide concentration in the first zone or zones, as determined by the potentiometric cell or cells, assumes a nearly constant value, this being chosen so that the alkali metal cyanide concentration in the final reaction zone (which may also be determined by a potentiometric cell) is not more than 100 p.p.m. The potentiometric cell may comprise a noble metal electrode, e.g. of gold or silver, dipping into the solution whose cyanide concentration is to be measured and/or controlled, and connected to a reference, e.g. calomel, electrode in contact with the solution by way of a diaphragm. The resulting p.d. may be measured to determine the cyanide concentration, or used to control a metering device, e.g. a magnetic valve pre-set to operate at a given p.d., for the fed cyanide solution. With CH 2 O and alkali metal cyanide the product is a salt of nitrilotriacetic acid; with amines the product is a salt of the corresponding aminoacetic acid; specified amines are 1,2- and 1,3-propylenediamine, ethylenediamine, hexamethylenediamine, 1,2-diaminocyclohexane, piperazine and diethylenetriamine. Byproduct ammonia is preferably removed, e.g. by passage of an inert gas.
Patent GB-1016657-A (GB)
Title: A process for the dimerization of monoolefins
IPC: B01J31/14
Filed: 1963-11-28
Abstract: Alphamono-olefins are dimerized or codimerized in an inert organic medium in the presence of oganic nickel compounds and aluminium hydrocarbyl halides as the catalyst forming components, in which the organic nickel compound (a) contains the group -Ni-O-Z in which Z is either (1) a group <FORM:1016657/C4-C5/1> in which R1 is hydrogen or is an organic group and X is an oxygen atom or an organic group linked through a carbon atom by a double bond to the carbon atom denoted, or (2) a group -O2S-Ox-R in which R is an organic group linked to the rest of the group through a carbon atom, and X is 0 or 1 and (b) has a solubility in the inert organic medium that amounts to at least 100 milligrams per litre under the reaction conditions. Preferably the double bond attached to the group X forms a conjugated system of double bonds with at least one double bond present in X which may be between 2 carbon atoms, a carbon atom and a hetero atom or two hetero atoms and may form part of a ring structure.  X is preferably a 2-iminoalkylidene or a 2-oxoalkylidene group, each of which may be substituted.  The dimerization takes place at - 20 DEG to +40 DEG  C. in presence of a liquid aromatic aliphatic or cycloaliphatic hydrocarbon as the inert reaction medium containing 0.2 to 8 milli-atoms of nickel per litre, the ratio of the organic nickel compound to the aluminium hydrocarbyl halide being such that the atomic ratio of nickel to aluminium is 1:2 to 1:100.  Many examples of nickel compounds are given and the examples describe (1) dimerization of ethylene using the nickel salt of diisopropylsalicylic acid and aluminium sesquichloride; (2) dimerization of propene using the nickel salt of diisopropylsalicylic acid and aluminium methyl dichloride or aluminium ethyl dichloride; (3) dimerization of propene using the nickel salts of alkylbenzene sulphonic acids or a monoalkyl ester of sulphuric acid in presence of aluminium ethyl dichloride and (4) codimerization of ethylene and propene using the nickel salt of diisopropylsalicylic acid in presence of aluminium ethyl dichloride, aluminium diethyl chloride or aluminium sesquichloride.ALSO:Alphamonoolefins are dimerized or codimerized in presence of an inert liquid organic medium, an aluminium hydrocarbyl halide and an organic nickel compound which (a) contains the group -Ni-O-Z in which Z is a heteroatom organic radical e.g. which may be substituted sulphonated nickel benzenes or naphthalenes which have been alkylated by reaction with C8-C18, olefins.  The aluminium hydrocarbyl halides used include aluminium dialkyl chlorides, aluminium alkyl dichlorides and aluminium alkyl sesquichlorides.
Patent GB-1300475-A (GB)
Title: Device for sensing and controlling the delivery pile of a sheet-fed printing press
IPC: B65H31/38
Filed: 1970-10-06
Abstract: 1300475 Sheet-delivery apparatus ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER AG 6 Oct 1970 [8 Oct 1969] 47546/70 Heading B8R A sensing device 11 controlling the lowering of a delivery pile table so as to maintain the top of the pile 8 at a constant level, is mounted loosely on an oscillated shaft 12 carrying front joggers 13, the device 11 normally being held in one set position but being moved away from the pile if the joggers are pivoted away from the pile, e.g. manually, beyond their normal movement. The sensing device 11 which may operate by variations in electrical capacity i.e. it does not contact the pile 8, is freely rotatable on the shaft 12 and has a bevelled stop member 20, Fig. 4, pressed by a spring 14 against a bevelled fixed stop 15 mounted on a member 17 fixed to a stationary shaft 16. The stop 15 can be adjusted by a screw and nut 29, 30 to adjust the position of the device 11 relative to the pile. The end of the spring 14 away from the stop 20 bears against a shoulder 18 fixed to the shaft 12, the arrangement allowing the device 11 to remain in one position with limited oscillation of the shaft 12. A projection 24 on the device 11 is aligned with a projection 23 fixed to the shaft 12, but during normal oscillation of the shaft 12, the projection 23 does not contact projection 24. If, for example, it is desired to take a proof sheet from the pile 8, the shaft 12 is swung away from the pile beyond its normal movement by means of a handle 25 and the projections 23, 24 engage to swing the device 11 away from the pile. During such movement, a mercury switch (26, Fig. 3) in the device 11 causes the tableoperating motor to be put out of operation. The device 11 may control the upward movement of the pile table to an initial position after a pile has been removed as well as the downward movement. The shafts 12, 16 with the parts mounted thereon can be removed from the machine as a unit.
Patent GB-1130073-A (GB)
Title: Improvements in and relating to overrunning roller clutches
IPC: F16D41/067
Filed: 1966-10-24
Abstract: 1,130,073. Ratchet clutches. TORRINGTON CO. 24 Oct., 1966 [24 Oct., 1965], No. 47557/66. Heading F2C. A one-piece sheet metal roller retainer 19 for an overrunning-roller clutch comprises side flanges 20 connected by cross-bars 21 which include panels (26), in the blank form, (Fig. 2, not shown) form each of which are pierced two roller biasing arcuate and crossing blade springs 32, 33 formed with offset ends 34, 35 to engage at the pitch circle of the rollers and bent out of the plane of the panel (26) which is formed at right angles to the cross-bar 21. The central parts 25 of the cross-bars 21 are radially outwardly offset and serve to locate the retainer 19 in the notched recesses 16 of the cammed race 14, which cammed race may be formed by embossing. After blanking the retainer from strip metal as at (40) (Fig. 3, not shown), the retainer is cylindrical rolled and its abutting ends welded to form the retainer ring which is thereafter heat-treated. The bottom edge bars 31 of the panel are bent back at right angles thereto, e.g. parallel to the cross-bars 21, and serve as seats for the rollers 18 when snapped into the retainer for storing as a unit assembly ready for fitting, each roller 18 being biased by its pair of blade springs 32, 33 to seat against the adjacent edge bar 31.
Patent GB-1246964-A (GB)
Title: Improvements in or relating to indicator lamps
Inventor: KENT GRAHAM BRUCE
IPC: F21V8/00
Filed: 1967-10-20
Abstract: 1,246,964. Indicator lamp. LIMITORQUE VALVE CONTROLS Ltd., and G. B. KENT. 21 Oct., 1968 [20 Oct., 1967], No. 47788/67. Heading F4R. An indicator lamp for mounting in a flameproof assembly is provided by a dome 19 of coloured transparent plastic screw-threaded into the wall 11 of the assembly and a solid glass cylinder 14, sealed with litharge into the sleeve 20 on the wall. The cylinder 14 may be transparent or a translucent colour. A sealing ring may be inserted between the flange 21 and shoulder 16 to render the assembly waterproof and dust-proof.
Patent GB-1411987-A (GB)
Title: Ventilation fan for intermittent operation
IPC: F04D25/02
Filed: 1972-10-19
Abstract: 1411987 Centrifugal fans ZIEHL-ABEGG OHG 19 Oct 1972 [21 Oct 1971] 48131/72 Heading F1C [Also in Division H2] In a ventilation fan for intermittant operations, comprising an electric motor driving a fan impeller 2, the motor rotor 1 is connected to a separate flywheel 6 assembled always to rotate with the impeller, the sole functions of the flywheel being to impart a flywheel effect to the impeller to retard decelerations of the impeller after switching off the motor. As shown, a part 3 of the motor state is fastened to spiral housing 4, the impeller 2 is  fastened to the motor 1 which is on external rotor, and the flyweel 6 is fastened to a shaft 5 common with the rotor. But, a number of modifications include the provisions of gearing on a free-wheel between the rotor and the flywheel and impeller.
Patent GB-1092115-A (GB)
Title: Bearings
Inventor: SPOKES RAYMOND EARL
IPC: F16C33/20
Filed: 1964-11-30
Abstract: A bearing element comprises a woven lining having a warp of nylon or polyester, a face weft of polytetrafluoroethylene and a back weft of cotton.  The weave may be 4-shaft double sateen.
Patent GB-1091838-A (GB)
Title: Gas-fuelled lighter
Inventor: HATTORI TADAMICHI
IPC: F23Q2/52
Filed: 1966-11-01
Abstract: 1,091,838. Gas-filled lighters. CROWN SANGYO KABUSHIKI KAISHA. Nov. 1, 1966, No. 48947/66. Heading F4F. A gas-fuelled cigarette lighter with a fuel tank (a) and filling valve b has a separate fuel storage chamber c within the valve arrangement b communicating with the tank (a) through a normally closed valve 8 which can be opened from outside the tank by means of a valve rod 1.
Patent GB-1023489-A (GB)
Title: Glass-ceramic bodies and method of making them
IPC: C03C10/00
Filed: 1964-12-02
Abstract: A transparent, semicrystalline ceramic body formed of a glass matrix in which fine crystals have formed, consist essentially of 60-80% SiO2, 15-30% of Al2O3 and 2-20% of one or more of MgO, Li2O and ZnO, to which is added 2-15%, based on the weight of the other ingredients, of ZrO2 to act as a nucleating agent. The crystals, which are less than 10 microns in diameter and comprise at least 50% by volume of the body, are composed of b -quartz solid solution and cubic ZrO2.  The ingredients, to which 0.3-2% of As2O5 may be added as a fining agent, are mixed and melted, the melt is cooled and shaped, then cooled to below the transformation temperature (700-800 DEG  C.) exposed to a temperature of 750-1150 DEG  C. for sufficient time (15 minutes to 24 hours according to the temperature) to effect the desired crystallization, and finally cooled to room temperature. The heating may be accomplished in two or three stages with a holding period of two to six hours at each stage.
Patent GB-1065219-A (GB)
Title: A drying and cooling apparatus for booklets or the like having adhesively connected backs
IPC: B42C13/00
Filed: 1965-11-18
Abstract: 1,065,219. Bookbinding. GRAPHA MASCHINENFABRIK HANS MULLER A.G. Nov. 18, 1965 [Dec. 4, 1964], No. 49032/65. Heading B6A. [Also in division F4] Apparatus for drying and cooling booklets having adhesively connected backs comprises an endless system of compartments formed by Z-shaped plates 3 on links 30 of an endless conveyer 2 for carrying the booklets from a loading conveyer 6 past radiant heating means 5 along the upper run and then along a cooling, lower run to cams 8 for unloading on to a conveyer 9. The plates 3 are each rearwardly inclined on the upper and lower runs and have a plate 4 tiltably connected to the outer ends of the plates 3 so as to engage the leading face of the following plate 3 in the upper run, and prevented from so doing during passage of the plates from the lower to the upper run, and upper run to the lower.
Patent GB-1067295-A (GB)
Title: Improvements in material handling vehicles
IPC: E01C19/20
Filed: 1964-12-03
Abstract: 1,067,295. Material distributers. HOOVER BALL & BEARING CO. Dec. 3, 1964 [Dec. 4, 1963], No. 49208/64. Heading A1D. A tractor drawn trailer for conveying and distributing fertilizer and like materials comprises a hopper 34, two spinner discs 374, 374' adapted to be driven from the tractor p.t.o. shaft, and a two speed endless conveyer (66) (Fig. 6 not shown) which feeds material to the discs and which is adapted to be driven by a ground wheel. The trailer includes a horizontal, longitudinal auger 212 (Fig. 5) positioned above the conveyer. The auger is adapted to feed material forwardly of the hopper to housing 284 of a boom assembly 214 when the latter is attached to the hopper, and the horizontal boom of this assembly may be moved from the position of Fig. 1 to enable material to be transferred to another trailer. In operation, a clutch 250, keyed to a power driven shaft, is engageable either with a freely mounted pulley 242 to actuate the spinner discs via shaft 260 and assembly 210 or with freely mounted sprocket wheel 246 which causes drive, through interconnected sprocket wheels 320, 324, of the boom assembly drive shaft 314. The sprocket wheels 320, 324 are freely mounted on shaft 282 so that the auger 212 will be driven only when clutch 328 engages wheel 324. The conveyer drive means includes a wheel 134 mounted on a frame which is pivotally mounted on a shaft so that the wheel can be moved into or out of engagement with the ground wheel by manual actuation of toggle lever arrangement (168) (Figs. 6, 7 not shown). The wheel 134 is mounted on an axle which has a clutch slidably keyed thereon, which clutch is adapted to engage either of two sprocket wheels freely mounted on the axle, so as to enable the conveyer to be driven at two different speeds. The rate of discharge of material to the spinner discs is also controlled by a gate 394. Material when discharged falls on to a baffle which comprises two vertically spaced inverted V-shaped deflector plates (432, 426) (Figs. 10 and 11 not shown) the upper of which has a portion removed therefrom so that material may pass over the two plates and on to the peripheries and central portions of the discs.
Patent GB-1529980-A (GB)
Title: Device for the intermittent rotation of a machine shaft
IPC: F16H31/00
Filed: 1975-12-02
Abstract: 1529980 Ratchet mechanism SIEMENS AG 2 Dec 1975 [4 Dec 1974] 49539/75 Heading F2Q A turbine shaft rotating device comprises a ratchet wheel 3 secured to a turbine shaft 1 and a vertically reciprocable rod 6 having pivotally attached to its lower end a frame 10 carrying a rod 13 which is adapted to engage the ratchet teeth on upward movement of rod 6 causing clockwise rotation of ratchet wheel 3. The rod 6 may be reciprocated by manual operation of a pivoted lever 8 or, alternatively, it may be hydraulically operated.
Patent GB-1525598-A (GB)
Title: Indicating exposure meter for a camera
IPC: G03B17/18
Filed: 1975-12-03
Abstract: 1525598 Exposure meter for cameras NIPPON KOGAKU KK 3 Dec 1975 [3 Dec 1974] 49680/75 Heading G2A The meter circuit generates a voltage VL proportional to the light incident on a photoresponsive element 1 and the value of an exposure factor setting resistor 2, generates reference voltages V1 to V4, compares V L  with V1 to V4 by means of comparators 8a to d and, as a result of these comparisons, energizes one or more indicators 11a, b, c (preferably LEDs) to indicate whether or not exposure is correctly set and, if not correctly set, the magnitude of the error. As shown when the setting is correct, VL = ¢ (V2 + V3) and comparators 8a-d and NAND gate 9 energize only LED 11b. If the setting would produce a degree of over-exposure then V3<VL<V4 and LED's 11b and c are energized, and for a higher degree of over-exposure V4<VL and only LED 11c is  energized. Similarly for under-exposure LED's 11a and b are energized if V1<VL<V2 and LED 11a above is energized if V L <V1. If the operator tries to set resistor 2 to a value which would provide an exposure outside the operating range of photo-conductor 1, then switch 13 is closed if the illumination level would be too high and switch 14 is closed if the illumination would be too low. In both cases LEDs 11a and 11c (or possibly all three LEDs) are energized. The circuit of Fig. 3 (not shown) comprises a constant voltage circuit (21-29) including an exposure factor setting resistor (29), and a log conversion circuit (30-34) including a photodiode (30). The output of these circuits is compared by comparators (8a to d) as in Fig. 1, with reference voltages generated by a circuit which also includes a constant voltage circuit (35-40), the characteristics of which are the same as those of the constant voltage and log conversion circuits (21-29 and 30-34) to provide temperature compensation.
Patent GB-1211371-A (GB)
Title: Polymerisation process
Inventor: JOB BRIAN ERNEST
IPC: C08F10/00
Filed: 1967-06-09
Abstract: 1,211,371. Polymerization of ethylene. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 May, 1968 [9 June, 1967; 13 July, 1967; 1 Nov., 1967], Nos. 26796/67. 32319/67 and 49729/67. Heading C3P. Ethylene is polymerized by contacting with a #-allylic compound of a transition metal of Group 4A, in the presence of an activator comprising a non-metallic halogen containing compound or an elemental halogen wherein the ratio of activator to initiator is not greater than 4 :1 expressed as a ratio of gram atoms of halogen to moles of initiator. The polymerization temperature is preferably between 150‹ and 220‹ C., at a pressure of not less than 1600 atmospheres, these conditions being such that the reaction mixture exists as a single fluid phase. The initiator, which may be recrystallized before use, may be added, with the activator in an inert solvent. A chain transfer agent, such as hydrogen, may be added to the polymerization mixture. In the examples, ethylene is polymerized in the presence of hydrogen, in an organic solvent using one of the following # allylic complexes, tetrabis (# allyl) zirconium, tetra-bis (#-2 methallyl) zirconium or titanium, tetra-bis (#-crotyl) zirconium or tetra-bis (#- allyl) hafnium, in the presence of one of the following activators, carbon tetrachloride, allyl chloride, bromide, fluoride or iodide, iso- or tbutyl bromide, n or iso-propyl bromide, 2- methallyl chloride, 1 -chloro-2-methallyl chloride, 2 - 3 - dichloropropane - 1, 1 - ehloropropane, 1,2-dibromopropane or iodine, and the polymer formed is treated with methanol.