baber/WOPTO huggingface dataset:
Patent GB-1347188-A (GB)
Title: Electrooptic light scattering device and method
IPC: G02F1/055
Filed: 1972-09-11
Abstract: 1347188 Piezoelectric ceramics UNITED STATES ATOMIC ENERGY COMMISSION 11 Sept 1972 [13 Oct 1971] 42051/72 Heading C1J [Also in Divisions H3-H5] A ferroelectric ceramic plate useful in a variable optical scattering system (see Division H3-H5) is formed of material of the formula Pb 1-x La x (Zr y Ti z ) (1-x/4) O 3 , where 0À05 # x # 0À08, 0À6 # y # 0À8 and 0À2 # z # 0À4, and is prepared by hot pressing the powdered material, e.g. at 800-1300 C., under flowing oxygen at 500-20,000 p.s.i. The material may be prepared by mixing alcohol solutions of suitable metallic compounds in the correct proportions and hydrolysing. Some constituents may alternatively be added as powdered oxides to the stirred solution, e.g. lead oxide powder to a solution of zirconium tetrabutoxide and titanium tetrabutoxide, followed by injection of lanthanum acetate solution/water mixture for hydrolysis. The precipitated material, or a mixture of the metallic powders in correct proportion, are dried, ground and heated at 300- 600 C. in air or oxygen. The resulting mixture is granulated or milled, and cold compressed into a slug prior to the hot pressing step. Within individual grains the material possesses rhombohedral symmetry. Reference has been directed by the Comptroller to Specification 1,182,870.
Patent GB-927153-A (GB)
Title: Improvements in or relating to chairs
Inventor: WATKINS GEORGE
IPC: A47C7/40
Filed: 1960-12-08
Abstract: 927,153. Adjustable back rests for seats. CO-OPERATIVE WHOLESALE SOCIETY Ltd. Dec. 8, 1961 [Dec. 8, 1960], No. 42220/60. Class 52 (2). The back rest 21 of a typist's chair is supported on a pillar 20 which can be adjusted vertically and laterally. The pillar 20 is embraced by two rebated damping blocks 14 pivoted at 13 between rearwardly extending chair chassis members 11. A clamping action is applied by rotation of a bolt 18 passing through elongated slots in the members 11 and through holes in the blocks 14, said slots limiting the angular adjustment.
Patent GB-1407830-A (GB)
Title: Ventilating grilles
IPC: F24F13/14
Filed: 1972-09-12
Abstract: 1407830 Clips ROYAIR LTD 3 Sept 1973 [12 Sept 1972] 42246/72 Heading E2B [Also in Division F4]  The spindles 3' of vanes 3 are gripped to hold the vanes in a preset position by tongues 7 which bite into the spindle and which are pressed up from a common strip 5. The two tongues of each pair are bent out to different degrees.
Patent GB-1207742-A (GB)
Title: Visual recording system for video signals
IPC: H04N1/44
Filed: 1968-09-06
Abstract: 1,207,742. Recording video signals. SONY CORP. 6 Sept., 1968 [6 Sept., 1967], No. 42556/68. Heading H4F. Relates to an apparatus for producing a visual image of one frame or field of a video signal. The video signal is recorded on a disc 2 covered by magnetic recording material 1 which is rotated by a motor 3. The odd and even lines of the frame are recorded by means of tape heads 5a and 5b respectively such that each field comprises one circular track on the disc. The speed of rotation of the disc is synchronized by the vertical synchronizing pulses of the video waveform such that the time for one revolution of disc 2 corresponds to one frame time. This is achieved by comparing pulses from a unit 13 arranged to occur once per revolution of disc 2 with the vertical synchronizing pulses, separated from the video signal in circuit 11, in a comparator circuit 12. The output from this unit is used to control the motor 3. The pulses from 13 are also arranged to activate switching circuits 9 and 17 which cause one head 5a or 5b to be in operation on each line. Hence when switch 10 is on the record (R) position the video input is switched by means of unit 9 to heads 5a or 5b for the odd and even lines respectively. Similarly for playback (P), unit 17 is switched to receive the outputs from heads 5a and 5b on alternate lines such that two revolutions of disc 2 produce a complete frame. The production of an image is achieved by winding recording paper 21 around a drum 20 which is arranged to rotate with disc 2. An electrode 22 is arranged such that it will produce an image on paper 21 by means of the current flowing therethrough and such that it is shifted in a direction parallel to the axis of the drum at each revolution of disc 2: The aforesaid shift depends on the resolution required. The picture on paper 21 is built up by a series of dots resulting from sampling the video signal from switching circuit 17 once per line (see Fig. 3). The delay between the horizontal synchronizing pulses of the video signals and the sampling pulses is increased after each rotation of disc 2 so that a different part of the video signal for each line is sampled for each position of electrode 22 such that a picture is made up of one field of the video signal. At each rotation of disc 2 a further vertical row (Fig. 3) of dots P 1 a, P 2 a. . . ; P 1 a<SP>1</SP>, P 2 a<SP>1</SP> . . . is formed. The full frame of the video signal may be produced by repeating the process for the second field on lines l 1 b, l 2 b . . . Fig. 4 (not shown) illustrates a second embodiment in which two electrodes 22 are employed such that two vertical rows of dots may be recorded at once.
Patent GB-1523914-A (GB)
Title: Flameresistant modacrylic fibres and filaments and process for their manufacture
IPC: C08F220/44
Filed: 1975-10-17
Abstract: 1523914 Flame-resistant fibres containing units of carboxyphosphinic acid derivative HOECHST AG 17 Oct 1975 [19 Oct 1974] 42700/75 Heading C3P Flame-resistant filaments and fibres are made from a polymer of 35-85% by weight acrylonitrile, 5-45% by weight of vinyl chloride, vinyl bromide, vinylidene chloride or a mixture thereof, 6-30% by a carboxyphosphinic acid derivative of the formula in which each of R1 and R2 is alkyl or haloalky having at most 8 carbon atoms, R3 is H or Me, X is O or S, and Y is an optionally branched alkylene group (C1-6), and 0-15% by weight of one or more other copolymerizable ethylenically unsaturated monomers. The specific examples describe filaments produced from acrylonitrile, vinylidene chloride and as carboxyphosphinic acid derivative a compound of the formula
Patent GB-925180-A (GB)
Title: Method of making fluffy, tufted pile fabric and pile fabric produced by such method
IPC: D06C29/00
Filed: 1960-12-14
Abstract: 925,180. Finishing fabrics; pile fabrics. COLLINS & AIKMAN CORPORATION. Dec. 14, 1960 [Dec. 14, 1959], No. 42970/60. Classes 42 (1) and 74 (2). A method of making a tufted pile fabric comprises looping a yarn in a base fabric, separating the fibres of the loops of the yarn above the base fabric, drawing the separated fibres partially out of the yarn and intermeshing the drawn-out fibres to lock the yarn in the base fabric. A yarn 10 is looped into a backing material having yarns 11 running in one direction. The fabric 12 is subjected to the kneeing action of a tigering or carding roll 13 which separates some of the fibres 15 of the yarn 10, Fig. 5. The fabric 12 is then twice subjected to the tigering action of a tigering roll to form the resultant fabric shown in Fig. 9, the fibres 15 being fully drawn out and intertangled. The fabric 12 is passed under a hot grooved roller 16, Fig. 10, and is sheared at 17 to form a level pile surface, Fig. 11. The yarns 10 may be coloured on the back of the backing material and after the operations described above the design is substantially transferred to the pile surface. Both sides of the fabric 12 may be treated by the method described above. The yarn 10 may comprise polyacrylic fibres.
Patent GB-1458377-A (GB)
Title: Pyrazolotriazoles
IPC: C07D213/18
Filed: 1973-09-13
Abstract: 1458377 Pyrazolo - s - triazole derivatives KODAK Ltd 12 Sept 1974 [13 Sept 1973] 43097/73 Heading C2C Novel pyrazolo-s-triazole derivatives having the general formula wherein R<SP>1</SP> is hydrogen, an optionally substituted alkyl or aryl group, a heterocyclic group or a group of the formula wherein R<SP>2</SP> is (C 1 -C 4 ) alkyl and R<SP>3</SP> is hydrogen, an optionally substituted alkyl, aryl or amino group, or a heterocyclic, acylamido, hydroxy, alkoxy carboxy, ester or amide group, are prepared by condensing a pyrazole of the formula wherein X is an anion and R<SP>5</SP> is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, heterocyclic, acylamido, hydroxy, alkoxy, nitro, carboxy, ester or amido, in the presence of a base sufficiently strong to liberate the free hydrazine compound. The novel compounds are useful intermediates in the preparation of photographic colour couplers and dyes.
Patent GB-1041208-A (GB)
Title: Roll assembly for a tube mill
IPC: B23K13/02
Filed: 1964-10-22
Abstract: 1,041,208. Welding by pressure. ABBEY ETNA MACHINE CO. Oct. 22, 1964 [April 8, 1964], No. 43180/64. Heading B3R. A roll assembly for a tube mill for producing welded tubing from strip comprises a pair of laterally aligned squeeze rolls to engage opposite surfaces of the tubing, a pair of relatively inclined pressure rolls to engage the tubing in the region of the squeeze rolls and cantilever support means mounting the pressure rolls for movement relative to a frame. A yoke-shaped member 60, Fig. 1 (not shown), extending upwardly provides an aperture for the passage of tubing T and carries a member 62 which supports a pair of horizontally slidable elements 28, 30, Fig. 2 (not shown). The elements 28-30 in turn support a pair of vertically slidable members 24, 26 carrying cantilever support members 20, 22 for the angled pressure applying rolls 12, 14. A horizontal shaft 68 is journalled in the member 62 and has right- and left-handed threads engaging the elements 28, 30 for movement of the elements towards and away from one another. The shaft may move the elements in the same horizontal direction. The members 24, 26 carry threaded members 32, 34 engaging gearing in housings 36, 38 on the elements 28, 30 and operated by a transverse horizontal shaft 46 coupled to a similar shaft 48 to effect simultaneous upward or downward vertical movement of the members 25, 26 and thus of rolls 12, 14. The coupling may be disengaged to effect separate vertical movements. Beneath the rolls 12, 14 are arranged the squeeze rolls 16, 18 and high-frequency A.C. electrodes or induction means are arranged adjacent the rolls 12, 14.
Patent GB-1013290-A (GB)
Title: Improvements in or relating to negative impedance converters
IPC: H03H11/44
Filed: 1964-10-26
Abstract: 1,013,290. Negative impedance converters. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT. Oct. 26, 1964 [Oct. 24, 1963], No. 43473/64. Headings H3U and H3W. In order to make a conventional negative impedance converter perform closely to an " ideal " converter, passive circuits having certain dimensions are connected to the input and output of the converter. In Fig. 2 the conventional impedance converter is denoted by the quadripole circuits embraced by the bracket 1 and the passive circuits added to obtain the " ideal " performance comprise conductances G 1 , G 2  connected to the converter input and impedances R 1 , R 2  connected to the output. As shown in Fig. 1, the input current and voltage of the converter are denoted by I 1 , U 1  and the output current and voltage by I 2 , U 2 . The factor U 2 /U 1  when I 2 =0 is denoted   by g 21  and the factor I 1 /I 2  when U 1  = 0 is   denoted by g 12 . g 11  =I 1 /U 1  and is the forward no-load conductance when I 2 =0. g22 =U 2 /I 2    and is the short-circuit resistance when U 1  = 0. The dimensions necessary to obtain the "ideal" performance are obtained by fulfilling these conditions:-(i) g 12  = g 21 ,
Patent GB-1146939-A (GB)
Title: Improvements in or relating to electrodes for accumulators and primary cells
IPC: H01M4/64
Filed: 1967-09-25
Abstract: 1,146,939. Carbon fibres. RHEINISCHWESTFLISCHES ELEKTRIZITATSWERK A.G. 25 Sept., 1967 [29 Sept., 1966], No. 43485/67. Heading C1A. [Also in Divisions C7 and H1] Porous, conducting electrode plaques for primary, secondary or fuel cells comprise a felted or woven material of metal-coated carbon fibres. The fibres may be those produced by vacuum carbonization of cellulose wool and the coating may be of nickel containing 0-5 wt. per cent of boron. The material may be compressed and/or sintered. A terminal rod or plate may be attached by spot welding or a plate during the sintering operation.
Patent GB-1519315-A (GB)
Title: Trigger-locks for hand held power tools
IPC: G05G5/08
Filed: 1975-10-24
Abstract: 1519315 Mechanical switch latches LUCERNE PRODUCTS Inc 24 Oct 1975 [1 Nov 1974] 43866/75 Heading H1N A control unit in a hand held power tool 10 comprises a switching slide 28 attached to a trigger 13 and urged into the "off" position by a spring 32 and latched by an arm 36 pivoted at 37 and urged towards the latching position by a spring 45, the trigger being unlatched by squeezing lever 39 towards insulating housing 30 or by manipulation of a thumb plate 40. The switch operated by the trigger comprises a conductive member 60, one end 67 of which contacts the switch terminal 48 while the other contacts member 48a when the triggerisactuated but rests on an insulating abutment 69 when the switch is "off", the abutment 69 being part of the insulating casing of the switch.  As described the power tool comprises two such control units side-by-side. In an alternative embodiment the lever 39 is omitted. (Fig. 2, not shown).
Patent GB-1069984-A (GB)
Title: Improvements in or relating to reinforcing rods for concrete
IPC: E04C5/08
Filed: 1963-11-06
Abstract: 1,069,984. Reinforcing rods for concrete. DYCKERHOFF & WIDMANN KOMM GES. Nov. 6, 1963 [Nov. 7, 1962], No. 43881/63. Heading E1K. A reinforcing rod comprises projections 2 forming an interrupted screw thread on one side for engagement with screwed connections and keying depressions 3 on the other side which provide keying in concrete but being depressed below the general cylindrical surface of the rod, do not obstruct the screwed connections. The depressions 3 form a helical pattern of opposite thread to that of the projections 2.
Patent GB-1254523-A (GB)
Title: Improvements in and relating to padlocks
Inventor: BERRY DANIEL VICTOR
IPC: E05B67/38
Filed: 1967-09-27
Abstract: 1,254,523. Padlocks. INGERSOLL LOCKS Ltd. 20 Dec., 1968 [27 Sept., 1967], No. 43944/67. Heading E2A. The shackle 26 of a padlock is protected from attack by sawing, cropping &c. by an upstanding shroud 16 on the padlock body 10, this shroud enveloping both the shackle and the staple bars 34 when in the locked position. (For Figures see next column)
Patent GB-439496-A (GB)
Abstract: 439,496. Hinges. ROWLANDS, W. L., and ROWLANDS, D. L., Laurel Works, Vale Road, Camberley, Surrey. June 7, 1934, No. 16878. [Class 65 (ii)] [See also Group X] A hinge for a sliding-folding window or door consists of pins 7, Fig. 4, shouldered and riveted at 8 in angle brackets 9 which are screwed on to the door corners so that the pins project into fixed upper and lower channel guide tracks 11. The pins are preferably rounded at the end. The door may comprise side-hung sections 1, 15, Fig. 1, and a sliding- folding section 2 hinged at 3 to the section 1 and carrying the guide-pins 7 running in the fixed tracks.
Patent GB-1165480-A (GB)
Title: Push-Button Switch
IPC: H01H13/52
Filed: 1968-09-18
Abstract: 1,165,480. Retractive switches; actuating members for switches. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 18 Sept., 1968 [21 Sept., 1967], No. 44284/68. Heading H1N. A push-button switch, particularly for telecommunication equipment, e.g. telephone sets, include a frame 1, a push-button 6, Fig. 3 (not shown), an actuating member 18 for contact springs 8, 9, and a resetting spring 4 for the button, all formed as a single integral component of resilient plastics material. Frame 1 also provides two side chambers 16 for terminals 17, in addition to the main chamber housing the contact springs 8, 9. A mounting lug 7 is providing at one side of the frame. Springs 8, 9, are inserted through slots in the frame 1 and held in position by studs 10 on the contact springs engaging recesses in the frame and by stops 12 on the frame.
Patent GB-1153206-A (GB)
Title: Preparation of Substituted alpha-Phenylalkanoic Acids
IPC: A61K31/19
Filed: 1966-10-04
Abstract: 1,153,206. Anti-inflammatory &c. medicines. MERCK & CO. Inc. 4 Oct., 1966 [8 Oct., 1965], No. 44315/66. Heading A5B. [Also in Division C2] Pharmaceutical compositions in the form of tablets or capsules and having anti-inflammatory, anti-pyretic and analgesic activity and which are also useful for inhibiting fatty acid synthesis contain an acid of formula wherein R n  is cyclohexyl, cyclopentyl or C 1-6  alkyl, R is C 1-6  alkyl and R 1  is an organic radical e.g. alkyl, aralkyl, aromatic or hydroaromatic, R 2  is H or alkanoyl and R m  is halogen, CF 3 , C 1-6  alkoxy, C 1-6  alkylthio, mercapto, amino, di(C 1-6  alkyl)-amino, NO 2 , OH or C 1-6  alkylsulphonyl at least 1 R m  being in the 3-position.
Patent GB-1158881-A (GB)
Title: Improvements in or relating to Teaching Aids
Inventor: WHYTE-HENDERSON DAVID ALEXANDE
IPC: G09B7/073
Filed: 1965-10-20
Abstract: 1,158,881. Teaching apparatus. PENNANT DISPLAY & ENG. Ltd. 13 Oct., 1966 [20 Oct., 1965], No. 44356/65. Heading G5G. Apparatus for indicating the answers given by a plurality of pupils to a Ballard-type question, comprises a teacher's unit and a plurality of pupil units, each pupil unit having switch means arranged to provide a plurality of switching positions or selections corresponding to the number of possible answers to a question, and the teacher's unit having a multi-selector switch with at least the same number of switching positions, and a displaying section in the teacher's unit having at least one display unit for each pupil, the teacher's and pupils' units being so arranged that when the selected switching position or selection of any one pupil's switch means conforms to the selected switching position of the teacher's selection switch, the appropriate display unit on the teacher's unit is energized. The apparatus, as illustrated, comprises a teacher's unit 10 having a "correct" answer selection switch 12 and a display panel for displaying the answers selected by twelve pupils, and pupil units 15 (only one being shown) each having four push buttons 16-19 corresponding to four possible answers to a presented question and "correct" or "incorrect" indicating lamps 20, 21. Upon switch 12 being moved to indicate the correct answer a lamp beneath A, B, C or D on the panel is illuminated, and upon each pupil depressing one or more buttons and one or more lamps beneath the corresponding blank portions of the display panel will be illuminated. In another embodiment, for use with a larger class of pupils, there is only one blank space for each pupil which is illuminated if the pupil selects the correct answer and the embodiment includes an automatic switching circuit or mechanism which de-energizes all the buttons or each pupil unit after one button has been pressed. In a further embodiment, the four push-buttons are replaced by a four-position switch and the teacher unit includes a master switch which de-energizes all the pupil units until each pupil has made a choice. The teacher unit may include counting units which record the total number of correct or incorrect answers given by individual students or by the whole class.
Patent GB-1212907-A (GB)
Title: Improvements in or relating to pulse code modulation transmission systems
IPC: H04B17/40
Filed: 1968-09-20
Abstract: 1,212,907. Testing pulse repeater stations. SIEMENS A.G. 20 Sept., 1968 [21 Sept., 1967], No. 44753/68. Addition to 1,212,908. Heading H4L. The system disclosed in Specification 1,212,908 for testing intermediate stations in a P.C.M. system, wherein at a terminal exchange the normal P.C.M. signals are modulated by a low frequency wave for testing and at each intermediate station a pulse regenerator for the P.C.M. signals is followed by a bandpass filter responsive to the low frequency allotted to that station to operate a switch to feed back the test signal via a further pulse regenerator to the originating exchange or to feed it on to a further terminal exchange, is modified in that the filter operates in conjunction with a signal attenuator to reduce the signal fed to the further pulse regenerator to the level expected of a normal received signal.
Patent GB-1335239-A (GB)
Title: Machine for producing green tyre carcasses
IPC: B29D30/26
Filed: 1971-01-19
Abstract: 1335239 Tyre building apparatus FIRESTONE TIRE & RUBBER CO 19 Jan 1971 [11 Feb 1970] 44991/71 Divided out of 1335231 Heading B7C The subject-matter of this Specification is described in the abridgment of parent Specification 1,335,231 from which this was divided.
Patent GB-1585866-A (GB)
Title: Self-aligning bearing and method of making the same
IPC: F16C11/06
Filed: 1977-10-28
Abstract: The invention contemplates elastomeric-seal application to the so-called plain-spherical variety of self-aligning bearing wherein the outer ring is the product of a swaging operation which causes it to conform its cylindrical bore to a spherical surface at sliding interface with the spherical convex outer surface of an inner-bearing member. Specifically, in the machining of the swaged ring to its ultimate O.D. and other specified dimensions, a deformable axially extending lip is created, in conjunction with an undercut counterbore, at the axial end to be sealed; an elastomeric O-ring is fitted to the counterbore, and the lip is coined-over into retaining and preloading relation with the O-ring.
Patent GB-994736-A (GB)
IPC: G07D5/08
Filed: 1963-11-15
Abstract: 994, 736. Coin testing. TATEISI DENKI KABUSHIKI KAISHA. Nov. 15, 1963 [Nov. 27, 1962(2); Nov. 28, 1962; March 22, 1963], No. 45129/63. Heading G1N. [Also in Divisions G4 and H2] During their passage down a shoot coins are connected as one electrode of a capacitor the capacity of which is measured to indicate the nature of the coin. Where, as in Fig. 1, a coin 2 in a shoot 1 slides over a ceramic base 4 with a back electrode 5 contact being made with the coin by an arm 9 and roller 10, the capacity depends on the area of the coin and the spacing of the coin face from the base by the coin rim. The coin may pass between two opposed insulator-electrode arrangements, such as 4, 5, so as to provide a third electrode and form two capacitors either in series or parallel. With such an arrangement the thickness of the coin is a factor affecting the capacity measured. The nature of the material of the coin may also be involved in the measurement if the capacitor is connected into the resonant circuit of an oscillator which is designed to discriminate between Q-factors above or below a given standard. If the circuit oscillates this may be taken to indicate a coin which gives a Q-factor higher than that to be expected and the coin can be rejected on this advice. A delay is introduced between detection and rejection to allow the coin time to reach a trap 6 which reflects to solenoid 13 to drop the coin into reject shoot 1<SP>11</SP>. Figs. 7 and 8 show arrangements alternative to the roller contact 8, 9, 10 of Fig. 1. In both illustrations the contact 53, or 64, is vibrated so that the coin progresses over the ceramic base in a series of steps.