baber/WOPTO huggingface dataset:
Patent GB-672187-A (GB)
Title: Improvements in or relating to circuit-arrangements for producing direct voltages
IPC: H04N3/185
Filed: 1950-09-05
Abstract: 672,187. Rectifying; automatic voltage regulators. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 5, 1950 [Sept. 8, 1949], No. 21847/50. Classes 38 (ii) and 38 (iv). A discharge tube 12 connected in parallel with a capacitor 3 and responsive to the D.C. load 8 to maintain substantially constant load voltage with varying load current characterizes a'D.C. producing circuit arrangement, more particularly for supplying cathode-ray tubes, in which the current from a source #, flowing through a discharge tube 1 and an inductance coil 2 is interrupted by a saw-tooth voltage applied to the grid of the tube 1, and the pulses thereby produced are rectified by a diode 6 to supply the load 8. The coil 2 is the primary winding of a transformer 5 the secondary winding 10 of which, through a rectifier 11, charges the source assisting condenser 3. The tube 12, having a grid 13 supplied from a potentiometer 15, 16 constitutes a condenser load varying in opposition to, and thereby compensating, variations in the main D.C. load 8. In a modification the grid 13 is supplied from an auxiliary winding on the transformer 5. The secondary winding 10 also supplies a sawtooth current to the cathode-ray tube line deflection coil 9.
Patent GB-1142372-A (GB)
Title: Dolls
Inventor: PUGH WILLIAM ALEC GIBSON
IPC: A63H3/24
Filed: 1966-05-17
Abstract: 1,142,372. Crying dolls. BAKELITE XYLONITE Ltd. 17 May, 1967 [17 May, 1966], No. 21851/66. Heading A6S. A crying device in a doll comprises a hollow liquid container 7 mounted in the head directly behind the open mouth 4 by a rigid liquid-supply conduit 9 connected thereto and also by tear-tubing 15 permanently attached to the eye-sockets 5 of the doll by moulding material of the head defining said sockets around the relevant ends of this tubing, said conduit and tear tubing communicating with the interior of said container, which also has an air inlet 19 additional to the connections to said conduit and tubing. The head of the doll may be made by slush moulding with the tear tubing in position (see Fig. 7, not shown). In operation, the container is filled by "feeding" the doll through the mouth with water, e.g. from a feeding bottle. The mouth is then sealed, as by a comforter, and the doll is squeezed, whereupon water is expelled from the tubes 15 simulating tears. Excess water which overflows through tube 19 may, on tipping the doll, be released through hole 21 to simulate "wetting".
Patent GB-1501415-A (GB)
Title: Fibre optic couplers
IPC: G02F1/335
Filed: 1975-05-21
Abstract: 1501415 Light guides INTERNATIONAL BUSINESS MACHINES CORP 21 May 1975 [16 July 1974] 21854/75 Heading G2J A device for coupling one or more optical fibres 15 to a thin film waveguide 13 comprises a transparent body 12, e.g. of quartz, having a surface 12' bearing the waveguide 13, the body 12 enclosing a portion of the fibre or fibres 15 which terminate on the surface 12'. Propagation in the fibres and waveguide is by internal reflection, and the fibres should make an angle of incidence with the surface 12' greater than the critical angle of the material 13. In a modification, Fig. 3 (not shown) in which acoustic wave generators (36) are located on the waveguide 13, thin film lenses (35) are incorporated in the material 13 to focus or collimate light propagating therein.
Patent GB-1372076-A (GB)
Title: Apparatus for casing books
IPC: B42C11/02
Filed: 1972-05-10
Abstract: 1372076 Work benches VELO-BIND Inc 10 May 1972 [25 May 1971] 21871/72 Heading B4X [Also in Division B6] A machine for applying a cover to a book filler 41 comprises a table 81 for supporting a cover 46 having a flexible spine 48 with an exposed pressure-sensitive adhesive inside surface and laid out substantially flat with said surface uppermost, and clamp means 95 for supporting said filler 41, the clamp means being manually pivotable to urge the spine of the filler against the adhesive surface of the cover. The table has stops 85 and two side register wings 84 movable towards and away from each other by rotation of a knob 94 to centralize the cover on the table. Two clamps 101L, 101R are pivotably mounted on a threaded shaft 98 at the edge of the table such that rotation of a knob 99 clamps the filler therebetween, the clamps then being manually pivotable to engage the filler spine with the cover spine.
Patent GB-1312063-A (GB)
Title: Generation of controlled atmospheres in particular for metallurgical furnaces
IPC: C21D1/76
Filed: 1970-05-06
Abstract: 1312063 Making combustible gases GAZ DE FRANCE 6 May 1970 [6 May 1969 29 April 1970] 21873/70 Heading C5E [Also in Division F4] Apparatus for generating controlled CO rich atmospheres to be used in a heat treatment furnace 27 comprises a refractory lined combustion chamber 12 having a burner 19 supplied with a preheated combustible air gas mixture, the combustion products passing through a heat exchanger 17 in which at least part of the combustible mixture or a component thereof is preheated, and a condenser 20 in which water vapour is removed. The degree of preheating and the air-gas ratio are so interdependently selected as to maintain the combustion chamber inner wall temperature above a critical temperature of about 1200‹ C. to prevent methane being present in the combustion products, and also to avoid the presence of oxygen in them. The gas flow velocity in chamber 12 is about 1 metre per see., the chamber being half to two-thirds filled with porous crushed refractory. In a modification (Fig. 1, not shown) the hot atmosphere gas passing to the furnace can be used to preheat air which gives up its heat to a compressed combustible gas-air mixture passing to the burner, the air being then recycled and/or used as combustion air. Alternatively the preheated air may be simply mixed with boosted combustible gas prior to entering the burner. A refrigerating stage to complete water vapour removal may be provided downstream of the condenser. The gas burnt may be coke oven gas,  town gas, propane or natural gas.
Patent GB-1071448-A (GB)
Title: Improvements in and relating to seed sowing units
IPC: A01C7/04
Filed: 1966-05-17
Abstract: 1,071,448. Seed sowing machines. C. J. STEKETEE. May 17, 1966 [May 18, 1965], No. 21903/66. Heading A1D. A seed sowing machine comprises a drum 1 with recesses which each receive a seed, the drum being driven from landwheels 5 which are mounted on a shaft 2 which carries the drum. A pulley 15 is mounted on the shaft 3 and may be used to drive the drum from a common drive shaft 10 which is used when a number of machines are connected up side by side, in which case the landwheels 5 are disconnected from the shaft 2 so that they are freely rotatable thereon. A pressing roller 8 is provided for closing the furrow made by the share 16.
Patent GB-1163253-A (GB)
Title: Flanged Nut
IPC: F16B37/00
Filed: 1968-05-08
Abstract: 1,163,253. Nuts and bolts. AQUA-MARINE MFG. Ltd. 8 May, 1968 [8 May, 1967], No. 21906/68. Heading F2H. A nut comprises an annular flange 23 having an inner edge and an outer edge 26, a plurality of teeth 28 extending axially of the flange in one direction from the outer edge and a generally cylindrical, internally threaded hub 30 extending axially in said one direction from the inner edge, the hub having around its outer surface a plurality of ribs 34, spaced such that at least one rib 34 is located radially inwardly from each inter-tooth space. The ribs 34 can be engaged by a pointed tool 36 which passes between two of the teeth 28 so as to act as a lever with a tooth as fulcrum during tightening or loosening of the nut. The nut may be engaged with an externally threaded sleeve 12 provided with a flange 16.
Patent GB-1395818-A (GB)
Title: Process for the photographic production of given transparency  or density distributions
IPC: G03F1/54
Filed: 1972-05-10
Abstract: 1395818 Photographic standard AGFAGEVAERT A G 10 May 1972 [11 May 1971] 21935/72 Heading G2X  A standard for optical and measuring purposes having a predetermined density or transparency distribution in a photographic layer by (a) exposing a photographic material containing at least one silver halide gelatine emulsion layer behind a photographic test wedge, processing, deducing the photographic characteristic curve of the layer from the resulting image by plotting "transparency" or "density" against "exposure"; (b) entering the transparency or density distribution required in the standard is entered as a function of the X coordinate and reflecting this on the characteristic curve to determine the brightness distribution required for subsequent exposure on the same photographic material; (c) obtaining the required brightness distribution by optical anamorphotic means; and (d) using this distribution to expose the same photographic material and processing it using the same development conditions as in (a).
Patent GB-1502861-A (GB)
Title: Dischargeable black dyeing of acidmodified polyester fibr
IPC: C09B62/325
Filed: 1975-05-21
Abstract: 1502861 Mixtures of cationic azo dyes SUMITOMO CHEMICAL CO Ltd 21 May 1975 [24 May 1974 (2)] 22018/75 Heading C4P [Also in Division Dl] Mixtures of monoazo dyes contain at least one dye of Formula (I) (where R<SP>1</SP> is C 1-3  alkyl optionally substituted by hydroxy or C 1-4  alkoxy; R<SP>2</SP> is H or C 1-3  alkyl; R<SP>3</SP> and R<SP>4</SP> independently are cyclohexyl, or C 1-3  alkyl optionally substituted by hydroxy or C 1-4  alkoxy, or phenyl or C 7-8  aralkyl either of which may be substituted by a halogen atom) together with at least one dye of Formula (II), (III) or (IV) (where R<SP>5</SP> is H, C 1-  12  alkyl or C 7-8  aralkyl either of which may be substituted by a halogen atom, a hydroxy or C 1  -4  alkoxy group and in which either alkyl moiety may contain a group in the carbon chain; R<SP>6</SP> is C 1-  3  alkyl or C 7-8  aralkyl either of which may be substituted by a halogen atom, a hydroxy or C 1-4  alkoxy group; R<SP>7</SP> and R<SP>8</SP> independently are H. halogen, C 1-3  alkyl or cyano; R<SP>9</SP> is C 1-3  alkyl or C 7-8  aralkyl; R<SP>10</SP> is C 1-3  alkylene; R<SP>11</SP> and R<SP>12</SP> are C 1-3  alkyl; R<SP>13</SP> is C 1-3  alkylene; R<SP>14-17</SP> independently are H, hal or CN; R<SP>18</SP> and R<SP>19</SP> are independently H, C 1-3  alkyl or C 7-8  aralkyl either of which may be substituted by hal, CN or OH and in all the above formula X- is an anion). The dye mixtures are used for colouring polyester fibres black.
Patent GB-1170603-A (GB)
Title: Improvements in or relating to Anti-Skid Mechanisms for Vehicle Braking Systems
Inventor: WILSON ALEXANDER JOHN
IPC: B60T8/74
Filed: 1966-05-18
Abstract: 1,170,603. Anti-skid systems for vehicle braking. GIRLING Ltd. 4 Aug., 1967 [18 May, 1966], No. 22032/66. Heading F2F. The linear velocity and road wheel angular velocity of a vehicle are co-related in a skidsensing apparatus, comprising a shaft 13 (Figs. 1 and 2) driven by the vehicle road wheels, a collar 24 fixed thereon which through a leaf spring 23 drives a sleeve 17 freely rotatable on the shaft 13, the spring urging the sleeve axially toward a flywheel 14 which is journalled on bearings 16, and a ball 21 ridable on a ramp surface formed by a V-sectioned recess 20 in a radial arm 19 of the sleeve, frictionally engages the flywheel causing it to rotate as the vehicle moves. When the brakes are applied, inertia moves a friction member 41, of a weighted arm 39 pivoted at 40, against the flywheel 14 to retard it provided there is sufficient adhesion between the road wheel and road surface, the shaft 13 is decelerated also. A stop 42 on the arm 39 is set to ensure, for example, that a linear deceleration of 0À3 g must take place before the flywheel is retarded, in which conditions the decelerations of the flywheel and spindle are sufficiently close for no overrunning of the flywheel to occur. If because of poor road adhesion the linear deceleration is sufficiently small compared with that of the road wheel so that the weighted arm is ineffective to retard the flywheel, the shaft deceleration will exceed that of the flywheel and the flywheel will overrun, resulting interaction of the ball on the ramp surface causing the sleeve 17 to move axially against the spring 23. The spring 23 is set so that the road wheel deceleration must correspond to a minimum deceleration of 0À3 g, for example, before it is overcome. Movement of the sleeve 17 raises a valve member 33 on an outlet port permitting the passage of air, (fed from an inlet port 30 and filter 31 via the interior of housing 10) to a relay or servo (not shown) to reduce the braking effort.
Patent GB-874072-A (GB)
Title: Improvements in or relating to the moulding of fibrous material coated and/or impregnated with plaster
Inventor: FOTI ERIC ST JOHN
IPC: B28B11/04
Filed: 1956-07-17
Abstract: 874,072. Moulding hollow articles &c. NAPRON Ltd. July 17, 1957 [July 17, 1956; Oct. 24, 1956; April 29, 1957(2)] Nos. 22046/56, 32394/56, 13532/57 and 13534/57. Class 87(2). A method of moulding comprises coating a mould with a layer or layers of fibrous material impregnated and/or coated with wet plaster, removing the lining after it has stiffened sufficiently to permit this, drying the removed lining, and impregnating it from one or both sides with a synthetic resin element. Preferably a mould is coated with a release agent such as shellac, paraffin wax, or linseed oil, and is lined with a paper layer which may may be wetted with water, or starch or flour paste, and patterned to simulate wood. To the paper layer is then applied a coating of wet plaster which may be reinforced with a water-soluble urea-formaldehyde resin. After withdrawing the lining from the mould it is impregnated with a synthetic resin cement, e.g. a phenol-formaldehyde or styrenated alkyd resin. Alternatively the mould may be lined with at least one layer of glass fibre impregnated with wet plaster. If a hollow article with a smooth inner surface is required the glass fibre-plaster layer or laminate may be covered with a paper layer. The lined mould may be heated internally by burners, radiators, or hot air. Coffins, sewing machine covers, pram bodies, ducting, transformer casings furniture, and car bodies may be made by the method. Reinforcement, e.g. a wooden rail along an edge of a sewing machine cover, may be embedded between layers of fibrous material during the process. Hollow ware of such shape as to prevent easy removal from the mould may be formed in two parts which are brought together before the final drying and, if desired, before impregnation with the synthetic resin cement, and the seam lapped over with fibrous material such as paper or glass cloth. A laminated hollow body may be moulded by forming two shells of plasterimpregnated fibrous material of slightly differing sizes, and placing the smaller within the larger with an intermediate layer of synthetic resin cement which may contain glass fibres. As further alternatives the mould may be lined with textile fabric, wood veneer, leather cloth or a leather substitute comprising a flexible web coated on one side with polyvinyl chloride. In the example described with reference to Fig. 1, a mould 1 is lined with wood veneer 2 coated internally with a thin layer 3 of an aqueous slow setting plaster containing urea-formaldehyde resin reinforcement. A thick layer 4 of glass fibres mixed with a similar but less slow-setting plaster paste is then applied. When the whole has set sufficiently it is removed, allowed to dry, and then impregnated with styrenated alkyd resin. Manufacture of a coffin as disclosed in Specification 874,073 is described.
Patent GB-1244476-A (GB)
Title: Vehicle wheel mounting assemblies
IPC: B62D7/18
Filed: 1970-05-07
Abstract: 1,244,476. King-pin arrangements; adjusting wheel camber. GENERAL MOTORS CORP. 7 May, 1970 [21 May, 1969], No. 22105/70. Headings B7D and B7H. A vehicle wheel-mounting assembly comprises an axle end portion 2 with projections 4, 6 accommodating sockets of vertically aligned ball joints 9, 7 whose studs 42 are secured to projections 8, 10 of a steering knuckle 12, the ball joints being tension-loaded and one of them, e.g. 9, being adjustable. Each ball joint comprises a sealing cap 32 between which and a plate 48 a compression spring 50 acts. A cup portion 34 is riveted to the cap 32 and associated axle projection 4 or 6 and receives the shank of stud 42. The hemispherical head of stud 42 bears on plate 48 and is backed by a spherical bearing element 46. The shank of the stud of lower ball joint 7 is tapered to fit a corresponding bore 51 in the knuckle projection 10, being securely retained by a nut 52. The shank of the stud of upper ball-joint 9 is cylindrical and is fitted in a tapered bore 51 in the knuckle projection 8 with the interposition of a bearing sleeve 56. The upper joint 9 is thereby adjustable. Wheel camber is adjustable by rotation of sleeve 56, whose bore is eccentric, prior to tightening nut 52.
Patent GB-983010-A (GB)
Title: Improvements in cut-in valves for a pressure medium source
IPC: B60T13/14
Filed: 1962-06-08
Abstract: 983,010. Valves. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.-GES.]. June 8, 1962 [June 29, 1961], No. 22246/62. Heading F2V. A valve comprises a closure member 4 opened against a spring loading and fluid inlet pressure by a member 2 through a rod 6. In the valve closed position, the rod 6 is at an angle to the direction of movement of the valve closure and the member 2 and engages in a groove 13 in the member 2. As the member 2 moves to the left, the rod 6 opens the valve and after the rod engages an abutment 11, further movement of the member 2 causes the rod to move out of the groove to move the closure 4 to its fully open position. Since the valve is open, the fluid pressure is substantially equal on opposite sides of the closure and the movement of the rod out of the groove is made against the spring-loading only.
Patent GB-1240907-A (GB)
Title: Benzoylacetanilide derivatives and their use as colour couplers
Inventor: HUNT FRANCIS GEORGE
IPC: G03C7/36
Filed: 1969-05-01
Abstract: 1,240,907. Benzoylacetanilides. ILFORD Ltd. 29 April, 1970 [1 May, 1969], No. 22354/69. Heading C2C. [Also in Division G2] The invention comprises compounds of the formula wherein B 2  is a ballasting group of the formula wherein R 9  is a carboxylic acyl group; R 10  is an alkyl, cycloalkyl, aralkyl, aryl or substituted aryl group; R 6  is an alkyl aralkyl, aryl or substituted alkyl, aralkyl and aryl groups; and R 7  and R 8  are H, alkyl, aralkyl, aryl, alkoxy, aralkoxy, aryloxy, halogen, sulphonamido, substituted sulphonamido or carboxamido, but not more than one of R 7  or R 8  is hydrogen. They may be obtained by reacting an amino-substituted yellow colour coupler of the formula with an anhydride of the formula Examples are given for the production of the compounds. They are useful as yellow colour couplers in colour photography. In the examples, specific aminobenzoylacetanilides of Formula IX are obtained by reduction of the corresponding nitro compounds which are themselves obtained by reaction of a nitro-benzoylacetic ester with an appropriate alkoxy-aniline.
Patent GB-427244-A (GB)
Title: Air-cushioning cylinder for shock absorbers on motor vehicles
IPC: F16F13/00
Filed: 1934-08-01
Abstract: 427,244. Shock - absorbers. FAUDI, F., 190, Hansa-Allee, Oberkassel, D³sseldorf, Germany. Aug. 1, 1934, No. 22431. Addition to 422,686. [Class 108 (iii)] The cushioning and shock - absorbing device comprising a metal spring and a pneumatic shockabsorber arranged in parallel, as claimed in the parent Specification, is modified by forming the liner b<2> of the shockabsorber as a true cylinder concentrically disposed within the outer cylinder b by means of an annular flange b<3> on each cylinder cover which enters between adjacent ends of the cylinder and liner to form an annular chamber g. The flanges b<3> may be threaded to engage threaded ends on the cylinder and/or liner. Apertures in the liner and cylinder enable the chamber g to communicate respectively with the chambers on either side of the operating piston f and with the atmosphere.
Patent GB-186318-A (GB)
Title: Improvements in electric lighting and starting machines for motor vehicles
IPC: H02J7/14
Filed: 1922-08-18
Abstract: 186,318. Bosch Akt.-Ges., R. Sept. 19, 1921, [Convention date]. Starting prime-movers, dynamo-electric machines and control circuits for.- An electric starter comprises a dynamomachine having t w o armature windings, a shunt field winding, a series field winding, and switching - means f o r causing the machine to run as a compound motor with one armature in circuit and as a shunt dynamo with both armatures in series. The dynamo-electric machine is provided with an armature winding A cf large section and small number of windings, an armature winding d of small section and large number of turns, a series field winding H and a shunt field winding N. When the starting-switch F is closed, the switch S is operated to connect the battery B to the windings A, H in series through the contacts a, b, to close the shunt winding N through the ccntact e and to break the circuit of the armature winding D at the contact d. When the engine is started the switch F is opened and the armature windings A, D are connected in series through the contact d, the circuit of the series field winding H is broken at the contact b, the machine running as a generator to charge the battery.
Patent GB-778612-A (GB)
Title: Improvements in or relating to sheaves
IPC: B66D3/04
Filed: 1954-08-03
Abstract: 778,612. Pulley blocks. MATHESON, N. Oct. 5, 1955 [Aug. 3, 1954], No. 22530/54. Class 78 (5). [Also in Group XXXIV] A sheave comprises a fixed member d, e carrying at least three anti-friction bearings a, b, c, and a rim g adapted to engage rope i and supported by said bearings which engage in groove g<SP>1</SP> formed internally in the rim. As shown, the bearings are ball- or roller-type, shaft f being eccentrically mounted for adjustability, the sheave being carried by an oil derrick.
Patent GB-159801-A (GB)
Title: Improved method of stone-surfacing fibrous materials
IPC: D06N3/00
Filed: 1920-07-29
Abstract: 159,801. Coryell, W. C. July 29, 1920. Drawings to Specification. Single coatings; treatment prior to coating.- Waterproofed combustible fibrous materials are impregnated with sand or dust as a preliminary to stone-surfacing and fire-proofing treatment.
Patent GB-837474-A (GB)
Title: Metal casting method and apparatus
IPC: B22D11/06
Filed: 1956-12-18
Abstract: 837,474. Continuous - casting processes. HAZELETT STRIP-CASTING CORPORATION. Dec. 18, 1956 [Dec. 27, 1955], No. 22649/57. Divided out of 837,473. Class 83 (1). A method of casting a continuous metal strip between two spaced moving bands 14, 16, consists in cooling at least one of the bands by propelling liquid coolant over the surface of the band to form a continuous rapidly-moving film of liquid thereover. Liquid is sprayed on to both bands from nozzles 98, 90, in conduits 96, 88. Excess water is removed by scoops 104 into gutters 106, and by scoops 111 into a tank below. The machine is as described in Specification 837,473. Specification 837,475 also is referred to.
Patent GB-695380-A (GB)
Title: High tension separator switch particularly for erection in the open air
IPC: H01H1/58
Filed: 1950-09-15
Abstract: 695,380. High-tension switches. LICENTIA PATENT-VERWALTUNGS-GES. Sept. 15, 1950 [Jan. 29, 1949], No. 22781/50. Class 38 (v) A disconnect switch, particularly for use outdoors, comprises contact members 1 each of which is carried by a tube 2 rotatable about a vertical axis 7, the tubes being held against stops 10 by torsion springs 3 in the switch-open position. In closing, the tubes swivel about the axis 7, and when the parts 11, 12 of the contacts engage, they displace each other in directions opposite to those indicated by the arrows until the arms come into line with each other. The sliding movement between the contacts maintains them clean.