baber/WOPTO huggingface dataset:
Patent GB-1205272-A (GB)
Title: Photographic camera with an automatic exposure regulating means for controlling the exposure time
IPC: G01J1/42
Filed: 1967-09-19
Abstract: 1,205,272. Photographic camera. AGFAGEVAERT A.G. Sept.19, 1967 [Sept.21, 1966],  No.42533/67. Heading G2A. A photographic camera with automatic exposure regulating means comprising a known trigger circuit of transistors 1 and 2, Fig. 1, includes signal means, e.g. a glow discharge lamp 7, which, on movement of camera release 9 in direction B is connected instead of a shutter controlling electromagnet 6, to give an exposure time indicating signal, the signal means providing either a single signal, the duration of which varies with the prevailing illumination, e.g. as determined by the R.C. combination of photo-resistor 3 and capacitor 4, or a succession of signals, the frequency or duration of which may vary with the prevailing illumination. In a modification, Figs. 2, 3 (not shown) capacitor 4 is short circuited by a switch (17) at the start of the exposure time testing operation, and the lamp (7) is matched to the electromagnet (6) by resistors (19, 20) a capacitor (21) and an inductance (22). In another embodiment, Fig. 4 (not shown) additional capacitors (41, 42, 43) are connected in parallel with the timing capacitor by a switch (140) to increase or decrease the indication time, and the lamp is replaced by a signal vane (31) pivotable by an electromagnet (30) into a view-finder (32). In another embodiment, Fig. 5 (not shown) the indicating signal circuit includes a transistorized oscillator, giving a flashing exposure indication, and a circuit switching out the oscillator in bright light. In a modification of this embodiment Fig.6 (not shown) the duration and/or frequency of the flashes varies with the prevailing light and a battery testing circuit is included. In a further embodiment, Fig. 8 (not shown) light is fed back from the glow discharge lamp (76) to the exposure time controlling photo-resistor (86).
Patent GB-1435360-A (GB)
Title: Structural element for constructional toys
IPC: A63H33/08
Filed: 1973-09-12
Abstract: 1435360 Toy structural elements BRABOMATIC SpA 12 Sept 1973 [14 Sept 1972] 42775/73 Heading A6S A toy structural element, e.g. of resilient plastics, comprises a flat strip Z with lands and notches 3, 4 of equal length along its edges, and transverse slots 7 of the same length through it, the transverse distance B between the bottoms of the two opposite notches being the same as the length of the lands &c. Lengthwise slots 6 are of the same length as the distance A between the tips of the lands 3 on opposite sides of the strip. The width of the slots 6, 7 is the same as the thickness G of the strip 2. Notches 8 allow the element to be broken into short lengths. Both ends of the element may be closed, as shown at the lefthand end of Fig. 1, or open as at the righthand end. A number of the elements may be connected either by insertion through their respective slots, or side-by-side, or transversely, Figs. 6-10 (not shown). The strip may be used as the core of an iced lolly.
Patent GB-1432830-A (GB)
Title: Control circuit having load and power source isolation
IPC: G08G1/095
Filed: 1973-09-14
Abstract: 1432830 Traffic control signals MINNESOTA MINING & MFG CO 14 Sept 1973 [15 Sept 1972] 43324/73 Heading G4Q A plurality of loads, e.g. traffic signal lamps 40 are each connected in series with a circuit 16 for controlling current flow comprising a gated semi-conductor switch 62 gated by a variable impedance 74 circuit, circuit 16 being connected via diode pairs, e.g. 8, 20 poled in the same direction and paralleled across circuit 16. In the embodiment the variable impedance is a photo-conductor responsive to ambient light. In an alternative arrangement circuit 16 is additionally bridged by a further pair of likepoled diodes Fig. 4 (not shown). Coil 70 is provided for suppression of high-frequency signals.
Patent GB-905078-A (GB)
Title: Automatic bottle-capping apparatus
IPC: B67B3/00
Filed: 1959-12-21
Abstract: 905,078. Applying closures. IZUMI, S. Dec. 21, 1959 [July 11, 1959 (2); Sept. 2, 1959], No. 43332/59. Class 125(2). A bottle capping apparatus comprises an endless conveyer 8 feeding bottles via a worm 22 and a star wheel 13 to another conveyer 11 which carries the bottles through a capping station where a continuous band of capping material is drawn over the bottle top by the moving bottles, the bottles are clamped top and bottom, the capping material is cut by a cutter 73 and folded down over the neck of the bottle and a sealing tape is wrapped around the neck, the bottles being fed to a discharge guide 21 by star wheel 14. The bottle 33, Fig. 5, is supported on a bearer 34 having spindle 35 which is raised and lowered by a cam follower engaging a cam 32 and is supported on the conveyer 11 at 11c and 11d The top of the bottle, Fig. 7, is supported by a cover 54 with a cushion 53 of an elastic substance being passed downwardly by a spindle 52 and associated spring 64. This top support is also carried by conveyer 11 at points 11a and 11b. A pressure applicator ring 56 is forced down over the capping material by engagement with two bars 76 as the bottle is raised by action of the cam 32 as shown in Fig. 8. A sealing tape is then wrapped around the cap from a continuous band, cut and then sealed by applying heat from an electrical resistance heating element after which the cover 54 and pressure ring 56 are withdrawn together by two bars operating similarly but in the opposite direction to the bars 76 of Fig. 8.
Patent GB-1151340-A (GB)
Title: Magnetic Recording Tape and method and apparatus for manufacturing Magnetic Recording Tape
IPC: G11B5/70
Filed: 1966-09-28
Abstract: 1,151,340. Magnetic structures; electromagnets. RADIO CORPORATION OF AMERICA. 28 Sept., 1966 [12 Oct., 1965], No. 43461/66. Headings H1H and H1P. A magnetic tape having longitudinally extending zones in which the magnetic particles are oriented alternately lengthwise and widthwise is produced by passing a tape base coated with a layer of the particles in a fluid binder through a magnetic field having lateral and longitudinal portions across the width of the tape, and then drying the coating. The field is produced by a core with a longitudinally extending slit formed by plates above and below the tape, each plate having a gap running continuously across the width of the tape in a zig-zag manner (see Fig. 3, not shown) so that the field in the legs of the zig-zag is substantially transverse and the field at the base of each serration (which may be extended as a slot-see Fig. 4) is longitudinal. Each leg is at an angle of less than 25 degrees to the axis of the core. The legs may be of different lengths and the slots of different widths. The core is preferably energized by a solenoid carrying a current of 0À1-2 amps and producing a field of 1400 Oe. The finished tape may be slit down the centre of the lengthwise-oriented zones. The magnetic particles may be acicular γF 2 O 3 , Fe 3 O 4 , ZnFe ferrite, CrO 2 , or metal and the binder be a vinyl chloride-vinyl acetate copolymer.
Patent GB-891947-A (GB)
Title: A process and catalyst for the polymerisation of ª- olefins
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F4/64
Filed: 1959-12-23
Abstract: A process for the homo- or co-polymerization of a -olefins containing at least 3 carbon atoms (e.g. butene-1, butadiene, isoprene and particularly propylene) comprises contacting the olefin(s) in a liquid vehicle at elevated temperature and pressure with a catalyst system formed from (1) a metal or metals of Periodic Groups Ia, IIa, IIb or IIIb, (2) a halogen or inter-halogen compound and (3) a titanium trihalide.  The catalyst system, excepting where the said metal is of Group IIIb, is claimed per se.  In the example, propylene is polymerized in cyclohexane with a catalyst prepared from Al, Mg, I2 and TiCl3.  Reference has been directed by the Comptroller to Specification 849,132.
Patent GB-969714-A (GB)
Title: Coagulation of polymer emulsions
IPC: C08F2/22
Filed: 1962-11-19
Abstract: Emulsions of polymers of ethylenically unsaturated compounds are flocculated by the addition of 0.5 to 5.0% by weight of methylol, ethylol, or propylol sulphonic acid.  Exemplified polymers are copolymers of acrylonitrile with vinyl acetate or vinyl levulinate.
Patent GB-1298260-A (GB)
Title: Code signal input apparatus
IPC: H01H9/16
Filed: 1970-09-14
Abstract: 1298260 Switching circuits; non-contactmaking relays YOKOGAWA ELECTRIC WORKS Ltd 14 Sept 1970 [26 Sept 1969 11 Dec 1969] 43809/70 Headings H3B and H3P An isolating circuit for transferring data, to a computer comprises, an isolating transformer T1 having a first winding connected to an interrogating pulse source INR and to an output circuit 01, a second winding being connected via a rectifier across a capacitor which is charged or not according to the data input, whereby the impedance of the first winding and thus the transmission of the pulses to the output depends upon the data. As shown, the input data is provided by contact S1 connected by a transmission line to the capacitor. If the capacitor is discharged the first winding presents a low impedance to an inverted interrogating pulse from IV so that it is attenuated by R1 and the AND gate G1 is enabled by the supply voltage Vc allowing the non-inverted pulse to pass to the output. If the capacitor is charged, the first winding impedance is high and the pulse passes to the gate. As it is inverted it prevents the supply from enabling the gate and no output is produced. In Fig. 1 the supplies E 1 -E n  and the corresponding ON contacts are omitted, the capacitors being charged, when the contact is open, by a pulse source Os connected via an OR gate (GO) to the first winding.
Patent GB-1146091-A (GB)
Title: Musical snare drum
IPC: G10D13/02
Filed: 1968-05-27
Abstract: 1,146,091. Drums. I. A. ANTHONISZ. 27 May, 1968, No. 43963/65. Heading G5J. A snare drum has magnetic snare wires 1 which are controlled by electromagnets 11 The latter are mounted on hollow spindles 12 which contain leads to the electromagnets and are coupled by links 15 to a disc 16 on a spindle 17 adjustable by an external lever 19 to vary the position of the magnets. The wires 1 are attached at their ends to plates 3b slidable on posts 9, one of which has lateral extensions in guide holes in the lower core 7, and a screw 10 is provided to adjust the tension of the wires. The magnets are supplied with transformed and rectified A.C., the transformer, rectifier and a condenser being located in a tube forming the upright of the drum stand, a controlling foot switch being provided on one of the feet of the stand.
Patent GB-1003451-A (GB)
Title: Method and apparatus for length measurements
Inventor: GILL RONALD YAXLEY
IPC: G01B11/04
Filed: 1963-11-08
Abstract: 1,003,451. Electric selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. Nov. 8, 1963, No. 44168/63. Heading G4H. To measure the length of a running thread 6; Fig. 1, carrying a series of marks 4, 5 nominally uniformly spaced along the thread, the marks are counted 16 as they pass a first detector A and a second detector B spaced from the first detector A by a distance equal to the distance that should exist between each adjacent pair of marks 4, 5 if they were accurately positioned, appropriately controls a gating circuit from a clock pulse source 8, which produces one pulse for each increment of displacement of the thread, and a reversible counter 15 whereby if two marks 4, 5 on the thread are spaced by more or by less than the correct amount a count, positively or negatively, is made of the clock pulses for an. appropriate period to assess the difference Thus, after a length of thread has been measured the count 16 of the number of marks has to be modified by the algebraic count 15 of the errors in the distances between the marks. A third detector C is provided which functions to reset the gating circuitry after each count made by counter 15. In a modification (Fig. 2, not shown) the single detector B is replaced by a closely packed row of detectors which produce the clock-pulses produced in Fig. 1 by the rotational device 8. In the preferred embodiment the marks are printed on the thread and detected photo-electrically, but magnetic marks are referred to.
Patent GB-1441513-A (GB)
Title: Cationic perinaphthazole-tetrahydroquinoline dyestuffs
IPC: C09D11/02
Filed: 1974-10-11
Abstract: 1441513 Cationic perinaphthazole-tetrahydroquinoline dyes BAYER AG 11 Oct 1974 [12 Oct 1973] 44170/74 Heading C4P Cationic dyestuffs have the Formula (I) in which R is alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aryl or an alkylene radical bonded to the naphthalene ring in the #- position, R 1  is H or alkyl, alkenyl, alkynyl, cycloalkyl or aralkyl, and An<SP>(-)</SP> is an anion, and in which the cyclic and acyclic radicals are opt. non-ionically substd. and in which other, opt. non-ionically substd. carbocyclic or heterocyclic rings are opt. fused with the rings. The dyes are prepared (a) by condensing a naphtholactam-(1,8) with the appropriate tetrahydroquinoline at 50-150‹ C., (b) using a functionally equivalent compound, with a substituent which can be split off as an anion, instead of the naphtholactam, or (c) by alkylation of the compound (I) where R=H and R 1  may be an acyl radical which is then removed by hydrolysis. The dyestuffs are suitable for dyeing, printing and bulk dyeing materials containing acid groups, e.g. polyacrylonitrile and polymerized vinylidene dicyanide or of acid-modified polyesters or polyamides. They may also be used for other applications of cationic dyestuffs, such as dyeing or printing cellulose acetate, coir, jute, sisal and silk, tannin-treated cotton and paper, and in ball-pen pastes, rubber-stamp inks and in flexographic printing.
Patent GB-1343752-A (GB)
Title: Recording media
IPC: G02F1/19
Filed: 1970-09-16
Abstract: 1343752 Developing magnetic images HONEYWELL Inc 16 Sept 1970 [25 Sept 1969] 44259/70 Heading B6C [Also in Divisions G2 and H1] A recording medium for use in a magnetic or electrostatic recorder producing a permanent visible image comprises a translucent web of thermosetting material containing reflective flakes orientable in response to a force field when the thermosetting material is in the plastic state. Selective exposure of the medium to the force field locally alters its reflectance, thus producing a visible image. Most of the flakes may be magnetically or electrically aligned, parallel to the plane of the web, before recording, so that a dark image is produced on a highly-reflecting medium by re-orientation of the flakes (Fig. 6). If the orienting field is electric, the flakes are non-magnetic, e.g. aluminium; if magnetic, the flakes are also magnetic, e.g. iron, nickel, stainless steel or nickel-coated aluminium. The flakes suitably measure 10-50 Á across a major dimension, with thickness 0À1-5 Á, aspect ratio > 5 : 1 and coefficient of reflectance > 0À40. Thermosetting webs specified are alkyd and diallylphthalate polymers. In one embodiment, a thermoplastic web containing aligned flakes is subjected to a magnetic or electric field while selected areas of the web are heated to allow the flakes in these areas to re-orientate. The heater may be a laser scanning across the web in response to a control system. Alternatively, the thermoplastic web may be heated while a magnetic or electric field is applied to selected areas of it. In one embodiment a permanent magnet is moved across the web in response to a control system. A cooler may be provided to accelerate re-hardening of the web. When the web is thermosetting, selective re-orientation is effected while the web is plastic and heat is then supplied to solidify the web.
Patent GB-946561-A (GB)
Title: Angular accelerometers and angular acceleration sensing systems and control apparatus
Inventor: COOK GEORGE WORTHY
IPC: G01P15/08
Filed: 1959-12-30
Abstract: 946,561. Automatic acceleration control. THIOKOL CHEMICAL CORPORATION. Dec. 30, 1959, No. 44271/59. Heading G3R. [Also in Division G1] Apparatus for continuously measuring angular accelerations comprises a liquid-filled loop 12 having one or more turns, a rigid barrier 22 blocking the loop and preventing flow of liquid therein and a differential pressure cell 25 connected each side of the barrier 22 continuously responsive to pressure differential with negligible flow. To cancel out response to linear accelerations and gravitation the points A, B, Fig. 6, each side of the barrier 122 in the loop 120 of steel or nickel, are connected to two identical pressure differential responsive devices so that the point A communicates with the upper side of a diaphragm 138 and the lower side of a diaphragm 140 while the point B communicates with the other sides. A valve 136 is kept open when the accelerometer is not in use to prevent damage to the diaphragms. In a practical embodiment Fig. 13 (not shown) the valve itself when closed provides the barrier in the loop. In order to accommodate expansion and contraction of the liquid 14 in the loop 12 an expansion bellows 16 is symmetrically arranged in the loop and to ensure that the cell 25 is not affected by changes of viscosity of the fluid therein the cell 25 is positioned in a temperature-regulated oven 28. An inductive coil each side of a diaphragm, Fig. 14 (not shown) may be arranged to give a signal in response to minute movements of a diaphragm. The cell 25 may take the form of a capillary tube 44, Fig. 2, connected to the tube 12 close to the barrier 22 and filled with mercury except for a central globule 50 of distilled water. Light from a lamp 58 is screened from photocells 56 except at the position of the globule 50 which changes with angular acceleration and so provides discrete signals of lines 64, 65... collected in a cable 32. In place of photo-cells, contacts may be arranged which are bridged by the conducting mercury and disconnected by the globule. In either case the curved tube 44 may be arranged generally helically round a cylinder. The derived signals which depend on the angular acceleration feed a computer 34 whose output is fed to a circuit which controls a torque amplifying motor which positions control vanes 39, 40 to maintain level a craft carrying the accelerometer arranged to respond to rolling accelerations. The angle of roll is indicated on dial 101 and a reference platform 42 is maintained horizontal athwart the craft and may carry linear accelerometers. The diameter of the loop should be at least 100 times that of the tube forming the loop and the cross-sectional area of the tube should be at least 100 times that of the capillary bore to prevent significant mass flow. Suitable dimensions are 20 feet and one inch respectively for the diameters of the loop and tube and a capillary bore radius between 0.025 and 1.3 mm.
Patent GB-1301648-A (GB)
IPC: G03B1/60
Filed: 1970-09-16
Abstract: 1301648 Cine cameras NIPPON KOGAKU KK 16 Sept 1970 [16 Sept 1969] 44283/70 Heading G2E A cine camera 1 receives a magazine 2 with supply and take-up chambers and a take-up film core 3 with an anti-reverse means, driving gear 4 carried on arm 9 engaging the core-driving gear 5 during normal photography and being disengaged when arm 9 is pivoted clockwise to permit loose-winding of film in the take-up chamber prior to back-winding for dissolves, pivoting of arm 9 being prevented when the supply or take-up cores are nearly full by a cam sector 16b on footage counter disc 16 which engages arm 9. Sector 16b engages projection 9a to hold the arm 9 in engagement with gear 5, the angular position of the sector ensuring that adequate space in the film chambers is available for loose back-winding.
Patent GB-1129269-A (GB)
Title: Collapsible cabin boat
IPC: B63B7/08
Filed: 1965-10-19
Abstract: 1,129,269. Valves. A. MAGIN. 19 Oct., 1965 [19 Oct., 1964; 13 March, 1965; 23 April, 1965; 17 Sept., 1965], No. 44309/65. Heading F2V. [Also in Division B7] In an inflatable hull forming a part of a collapsible cabin-boat, a valve for controlling air channels 52 comprises a rubber box 59 on the exterior of the hull wherein a removable sealing-cone 62 can be lodged and secured by toggles 64, said cone being furnished with a screw-threaded pin 65 which when unscrewed, Fig. 24 (not shown), can be used to depress a  cylindrical portion 55 of a sealing member 53 against the action of a compression spring 57 situated in a base 56 so as to release air within said channels when the hull is to be deflated. A  further cylindrical portion 54 normally abuts a sealing surface 58 (as shown in Fig. 23) due to the action of the spring. When the hull is to be inflated, an air-supply tube 69 is inserted in a bore 60 (as shown in Fig. 25), a sealing element 69 being provided on the end of the tube. Compressed air enters the channels 52 through grooves 67 in the portion 55 of the sealing member. The cone 62 may be made of metal or  plastics and has a rubber coating 63 thereon.
Patent GB-1136489-A (GB)
Title: Indoles
IPC: C07D209/28
Filed: 1966-10-04
Abstract: 1,136,489. Indoles. MERCK & CO. Inc. 4 Oct., 1966 [7 Oct., 1965], No. 44313/66. Heading C2C. Novel diesters of the general formula wherein A is a hydrogen atom or a substituted or unsubstituted carbocyclic or heterocyclic acyl radical preferably an aromatic carbocyclic or heterocyclic acyl radical containing less than three fused rings; R 1  is a hydrogen atom or C 1-5  alkyl, C 1-5  alkoxy, haloalkyl, hydroxyl, mercapto, benzylmercapto, benzyloxy, C 3-6  cyclo-alkyl, C 3-6  cyclo-alkoxy, di-(C 1-5  alkyl)- amino, bis-(C 1-5  hydroxyalkyl)-amino, pyrrolidino, morpholino, piperazino or C 2-5  alkenyl group; R 2  is a hydrogen atom or C 1-5  alkyl or C 1-5  alkoxy radical and R 3  is a bulky labile group subject to non-aqueous cleavage, e.g. t-butyl, are prepared by the interaction of the appropriate aniline, having not more than one substituent ortho to the nitrogen atom thereof and being free of deactivating, meta-directing, electron-attracting substituents, and a diester of γ-halo-#-keto adipic acid (wherein the esterifying radical is the group R 3 ) followed, optionally by acylation of the resulting 1-unsubstitutedindole compound. A process is also described which comprises cleaving the diacetate indole under non-aqueous conditions to form the corresponding unstable indole - 2,3 - diacetic acid which decarboxylates spontaneously thereby forming the corresponding α - (2 - methyl - 3 - indolyl) - acetic acid and, when required, acylating the latter compounds thus forming 1-acyl compounds having anti-inflammatory, antipyretic and analgesic activity.
Patent GB-1204491-A (GB)
Title: Improvements relating to heat exchangers
Inventor: RUTHERFORD RONALD
IPC: F28D1/03
Filed: 1966-10-05
Abstract: 1,204,491. Plate heat exchangers. WASHINGTON ENG. Ltd. 3 Oct., 1967 [5 Oct., 1966], No. 44552/66. Heading F4S. A plate heat exchanger for air cooling oil from a transformer tank, comprises a plurality of flat tubes 1 welded to top and bottom headers 2, 3 respectively, each tube tapering in width, and so in cross-sectional area, from top to bottom. Each tube 1 is formed from two plates welded at their peripheral flanges 4, one or both plates having depressions 6 touching the other plate at points 7, where they may be welded. Each header is formed from a sheet slotted to receive the corners of each tube at the ends of one longitudinal edge thereof.