baber/WOPTO huggingface dataset:
Patent GB-304891-A (GB)
Title: Improvements in tuning inductances
IPC: H01F21/04
Filed: 1927-12-22
Abstract: 304,891. Reyner, J. H. Dec. 22, 1927. Inductances.-A low-resistance astatic inductance comprises two concentric or coaxial coils of similar electric and magnetic dimensions adapted to be connected in parallel with their magnetic fields in opposition. As shown, two coils a, b are wound on concentric formers c, d fixed to a base e, carrying terminals f<1>. When the inductance is required to be tuned by a condonser on two distinct wave bands, a switch operated by a handle j<1> is provided to change the connection of the coils from parallel to series, the magnetic fields, when the coils are in series being either in the same or opposite directions. The switch comprises three fixed contacts and three spring blades h, of which either one or two are lifted by a cam barrel i according to the position of the handle j<1>. An additional winding l may be wound on the former c adjacent to the winding a and may form a reaction coupling coil or the primary winding of a high-frequency bransformer. The coils may alternatively be of spiral or other form. According to one of the Provisional Specifications a metal guard in the form of a non-closed loop connected to earth may be placed at one or both ends of the coil in order to minimize capacity coupling. Specification 115,876 is referred to.
Patent GB-427825-A (GB)
Title: Improvements in or relating to the vapourisers of liquid fuel lamps and heaters
IPC: F23D11/44
Filed: 1933-12-11
Abstract: 427,825. Vapour burners. PERRY BARR METAL CO., Ltd., Wellhead Lane, Perry Barr, Birmingham, and ABRAM, W. H., 18, Leybourn Road, Kingsbury, London. Dec. 11, 1933, No. 34766. [Class 75 (i)] [See also Group XXVI] A gland for an axially movable pricker - rod 5 for clearing the nipple 2 at the outlet end of the vaporizing - tube 1 comprises asbestos packing bushes 20, 22 and an intermediate metal bush 21, the bore of which communicates through holes 26 and an annular peripheral recess 25 with one or more outlets 16 connected with the fuel reservoir so that any fuel leaking along the rod is returned to the reservoir. The rod consists of two parts screwed together at 11, the outer part being formed with a guide collar 15 and a screw 13 engaging a threaded part 14 of the sleeve 3 between the outlet 16 and the inlet 4 to the tube 1. The pricker wire 7 is secured in a holder 8 held by a screw cap 9 and a lock-nut 10 on the inner end of the rod. A flange 27 is provided for mounting an air buffer vessel.
Patent GB-903098-A (GB)
Title: Self protective electrical inductive apparatus
IPC: H02H7/04
Filed: 1960-10-11
Abstract: 903,098. Transformers. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 11, 1960 [Nov. 18, 1959], No. 34845/60. Class 38 (2). In a transformer having its windings 20, 30 (Fig. 2) of sheet material partly interwound and connected so that the interwinding capacitance 72 is effectively in series in the circuit of one winding 20 as described in Specification 885,598, means, responsive to voltage surges (such as back-to-back Zener diodes 82, 84) or excessive current (such as the current type relay arrangement 90, 92, 94, 96 shown in Fig. 3) are provided to connect the interwinding capacitance effectively in parallel with the winding 20 on the occurrence of abnormal conditions. Instead of the current transformer 92, magnetic or semi-conductor devices may be used. The windings may be arranged to provide a high leakage reactance. Specifications 872,073 also is referred to.
Patent GB-972482-A (GB)
Title: A display device
IPC: H01L31/14
Filed: 1960-10-11
Abstract: <PICT:0972482/C4-C5/1> A solid state display device has a layer 12 of electroluminescent material common to a plurality of independently controllable display areas of the device and a control structure 20 including ferro-electric material for producing images in response to input signals, the control structure comprising the ferro-electric material in a layer 22 and a plurality of first or control electrodes 24 on the surface of the layer 22 in a repetitive pattern whereby each of the display areas is associated with one of the electrodes 24. Each of the display areas includes first, second and third non-linear condensers defined between its associated first electrode 24 and second 25, third 26 and fourth 27 electrodes disposed on the other surface of the ferro-electric layer 22, the non-linear condensers being controlled with respect to their effective capacitances by input signals to the first electrode 24.  The device includes circuit means for impressing time varying electric fields across the electroluminescent layer 12, the circuit means, electroluminescent layer and non-linear condensers being so associated as to provide a bridge circuit for each display area with the electroluminescent layer being connected in the common branch of the bridge circuit.  A continuous transparent electrode 14 is disposed on a surface of the electroluminescent layer and a plurality of fifth electrodes 16 on the opposite surface of the layer to define a plurality of electroluminescent condensers including one for each display area of the device, each fifth electrode being electrically connected to the fourth electrode 27 of the associated display area by conductors 37 in a layer of resin, plastic or glass 30. Conductors 35, 36 are in contact with the electrodes 25, 26. The layer 30 can be omitted.  The common branch of the bridge circuit comprises the electroluminescent condenser connected in series with the third non-linear condenser.  A series circuit of a first A.C. source and a D.C. source is connected between the transparent electrode 14 and the second electrodes 25 and a second A.C. source between the electrode 14 and the third electrodes 26.  Printed or sprayed circuit components can be provided on the ferro-electric layer 22.  The input signals to the first or control electrodes 24 can be applied by a modulated electron beam as described in Specification 829,255.  The electroluminescent layer 12 can comprise copper activated zinc sulphide in a binder of polyvinyl chloride or glass, the electrode 14 tin oxide or gold, and the electrodes 16 evaporated aluminium.  If a glass binder is used for the electroluminescent material an opaque mask can be incorporated to prevent bright areas due to direct excitation of the electroluminescent layer by the electrodes 25, 26. The ferro-electric layer 22 can comprise barium titanate, barium-strontium titanate, barium stannate, sodium columbate, sodium tantalate, potassium columbate or potassium tantalate. Specifications 855,524, 858,392, 858,393 and 972,481 also are referred to.
Patent GB-351884-A (GB)
Title: Improvements in pipe joints and the method of making same
IPC: F16L13/06
Filed: 1930-11-20
Abstract: 351,884. Pipe joints. STEWARTS & LLOYDS, Ltd., 41, Oswald Street, and DEVINE, D., 28, King's Park Avenue, Cathcart, both in Glasgow. Nov. 20, 1930, No. 34919. [Class 99 (i).] In a joint for pipes 1, 3, Fig. 1, of the kind in which the adjacent ends of the pipes are provided with integral out-turned flanges, 2, 4 in the form of one or more flattened corrugations, which are held together by loose collars 9 bearing thereagainst and bolts 10, fluidtightness is secured by a weld 11 applied to the natural cavity 12 constituted around the abutting faces of the flanges. The corrugations are initially formed with a forwardly projecting part 5, Fig. 3, but the projection on the corrugation 4 is later cut away to provide a faucet 7 to receive the projector on the corrugation 2, which is preferably machined, when the pipes are jointed. Welding material 15 may be applied to the interior of the corrugations, Fig. 4, so as to provide the pipe ends with a uniform bore.
Patent GB-948532-A (GB)
Title: Improvements in or relating to electric motor circuit arrangements
Inventor: LEWIS JOHN HENRY REGINALD
IPC: H02P8/20
Filed: 1961-09-28
Abstract: 948,532. Counters; electric selective signalling. MARCONI CO. Ltd. June 6, 1962 [ Sept. 28,1961], No. 34974/61. Headings G4D and G4H. A step-bystep motor, used particularly for counting positively or negatively according to which terminal is energized by input impulses, is controlled by logic circuits to energize appropriate combinations of windings in response to successive impulses. In Fig. 1 only one of the units M1-M3 is cut off at any moment so that the related transistor T1-T3 and motor winding W1-W3 is deenergized. Each unit M is controlled by a corresponding OR gate OM which cut off M when either of the associated AND gates such as 1 AMI, 2 AMI has an output. Each AND gate has three inputs one from the add or the subtract input 1 or 2, as the case may be, the second from the associated M unit and the third from the next or the preceding M unit, according to whether addition or subtraction is being effected. Delay circuits are included. In a modification (Fig. 3, not shown) either one or two windings may be energized so that the motor steps through an angle of 60 degrees at each input impulse.
Patent GB-174311-A (GB)
Title: Method and apparatus for feeding molten glass
IPC: C03B7/084
Filed: 1920-07-13
Abstract: 174,311. Howard Automatic Glass Feeder Co., and Howard, G. E. July 13,1920. Delivering molten metal.-Relates to the delivering of uniform charges of molten glass from a tank furnace 1. The molten glass flows from the tank 1 through a submerged opening 13, over a weir 18 to a space 19 where the stream is divided by a block 45 and flows in separate channels 44, Fig. 4, to the discharge hole 26. It is forced through this in drops by a hollow reciprocating plunger 51 and cut off into charges by shears. The rate of flow through the hole 13 is kept constant and independent of the varying level in the melting tank 1 by means of a valve 14, which is operated through levers &c. from a pivoted float 4.
Patent GB-417090-A (GB)
Title: An automatic projectile fuze setting apparatus
IPC: F42C17/00
Filed: 1933-12-14
Abstract: 417,090. Setting projectile fuzes. RHEINISCHE METALLWAAREN-UND MASCHINENFABRIK, 195, Ulmenstrasse, Derendorf, and GIETMANN, A., 49, Hugo-Viehhoffstrasse, both in Diisseldorf, Germany. Dec. 14, 1933, No. 35219. [Class 9 (i).] In automatic fuze-setting apparatus for projectiles, the projectile is retained in the setting socket by a locking device which is released only upon the issue of an order to fire the gun. The locking bolt b retaining the projectile a in the setting socket (not shown) is under the control of a wedge-ended lever c actuated by a solenoid d which is in circuit with a battery e and contacts for four armatures m, m<1>, m<2>, f, the circuit being completed to release the locking bolt b only when both (1) the solenoids l, l<1>, l<2> are energized consequent on the fuze being correctly set and (2) the solenoid f, which is in circuit with a battery u<1> is energized by the closing of a switch u<2> giving a signal at u for the gun to be fired. The fuze-setting is signalled from a transmitter o having three concentric rows of contacts for units, tens and hundreds of a three place setting figure, and corresponding contact arms r, r<1>, r<2>. A battery q is in series with the contact arms and thence by way of the selected contacts on the transmitter and lines s, t with corresponding contacts on a control k, the circuit being completed through contact arms n, n<1>, n<2>, lines v, v<1>, v<2>, solenoids l, l<1>, l<2> and return lines x q<1>. The contact arms n, n<1>, n<2> are intergeared in the ratio 1 : 10 : 100 and are driven in synchronism with corresponding contact arms i, i<1>, i<2> on an indicator p by means of a crank y and gearing 2, 3, 4, 6, 7. Lamps on the indicator p are in series with the corresponding contacts on the control k so that a signal is given and the solenoids l, l<1>, l<2> are energized when the control k repeats the setting given by the transmitter o.
Patent GB-449531-A (GB)
Title: Machine for wrapping candy and inserting sticks into the candy
IPC: B65B11/28
Filed: 1934-12-07
Abstract: 449,531. Wrapping machines. DEHN, F. B., 103, Kingsway, London.-(Fair Play Caramels, Inc. ; Willow Street, Middletown, New York, U.S.A.) Dec. 7, 1934, No. 35248. [Class 94 (i)] [See also Group V] A machine for producing a confection comprises means for shaping a piece of candy, means for wrapping the shaped candy, and means for inserting a stick in the wrapped candy. Pieces of candy, cut and shaped from a batch, on a rotating table 1, Fig. 1, are pushed, together with a piece of wrapping paper 26, Fig. 18, into one of a series of pockets 33 in a wrapping wheel 25, Figs. 1 and 5, intermittently rotated by Geneva gearing. The paper is fed from a roll 28, Fig. 1, between guide rollers 27, and is severed between a fixed and a movable blade. As the candy is pushed into the pocket 33, Fig. 5, an arm 38 is rocked to fold the lower flap 39, Fig. 18, partially over the candy, and a hooked member 40 is swung down to break down the upper flap 41. As the wheel 25 rotates, a pair of rotating brushes 42 fold down the flap 39, a pivoted ironing member 44 smooths the flap 41 over the flap 39, a pair of folding members 47 sliding on guides 49 fold down the first end folds 48, Fig. 20, reciprocating arms 53 smooth down the second end folds 54 and pivoted plates 57 turn back the third end folds 58. The wrapped candy is next transferred from the pocket 33 in the wheel 25 to a similar pocket 33 in a second intermittently rotating wheel 63 by an ejector 34 one of which is situated in each pocket 33, the plates 57, which overlap the wheel 63, acting as a guide during the transfer. As the wheel 63 rotates, the tips of the end folds of the wrapper are folded down by a pivoted spring-loaded ironer 65 the upper end of which is provided with bevelled notches to engage and fold the tips. When the wrapped candy is situated adjacent a fixed abutment 123, a stick is inserted endwise therein by a reciprocating pusher, and finally, the ejector 34 in the pocket containing the finished confection is operated by the arm 124 to eject the confection.
Patent GB-619256-A (GB)
Title: Improvements in wrapping machinery
IPC: B65B19/02
Filed: 1946-11-28
Abstract: 619,256. Packing. ROSE, A. G., PEARSON, F. H., and ROSE BROS. (GAINSBOROUGH), Ltd. Nov. 28, 1946, No. 35284. [Class 94 (i)] [Also in Group II] In a wrapping-machine of the kind wherein articles of rectangular form are removed in succession from the base of a gravity feed stack by a continuous chain conveyer provided with spaced pushing elements, a reciprocating pusher operates in timed relationship with the pushing elements so that the article is partly removed from the stack by a gentle accelerating motion of the pusher before being engaged by a pushing element of the conveyer. In the construction shown, articles 11 are fed from the base of a stack 12 by a pair of endless chains provided with pushing elements 14 which engage the lowermost article in the stack and operate in conjunction with two pushers 17 reciprocated by means of a rocking member 20. The member 20 has an arm 24 provided with a roller 25 arranged by spring pressure to bear against a cam 26 which is mounted on a shaft 27 carrying sprockets 28 for the chains 13.
Patent GB-755203-A (GB)
Title: Improvements in or relating to basically substituted carboxylic acid amides
IPC: C07D295/15
Filed: 1954-12-06
Abstract: The invention comprises compounds of the general formula <FORM:0755203/IV(a)/1> wherein R1 is hydrogen or an alkyl group of from one to five carbon atoms, R2 is an alkyl group of from one to five carbon atoms, and R3 is an N-piperidyl or monoalkyl-N-piperidyl group, and their non-toxic salts.  The invention also includes the preparation of the above compounds, in which a compound of the general formula <FORM:0755203/IV(a)/2> is heated at a temperature between 90 DEG  and 200 DEG  C. with piperidine or a mono alkyl piperidine.  The reaction may be conducted at atmospheric or increased pressure and a large excess of the secondary amine is preferably used.  The reaction product may be purified by dissolution in acid, filtration and reprecipitation with alkali, followed by repeated crystallization from a solvent such as alcohol, or of a soluble salt from water.  Examples describe the preparation of b  - (N - piperidyl) - butyric, - valeric, - hexanoic and -isovaleric acid anilides and of b -(2-methyl-N-piperidyl)-butyric acid anilide. Hydrochlorides of some of these compounds are described.
Patent GB-619288-A (GB)
Title: Improvements in beat frequency oscillators
IPC: H03B23/00
Filed: 1946-11-30
Abstract: 619,288. Cathode-ray oscillographs. STANDARD. TELEPHONES & CABLES, Ltd., and GRAYSON, H. Nov. 30, 1946, No. 35537. [Class 37] [Also in Group XL (c)] In a circuit for producing trains of oscillations which start from a constant point in the cycle of oscillation, the outputs of two oscillators are heterodyned to produce a sum or difference output frequency, and one of the oscillators is periodically coerced to oscillate at the frequency of the other, the train starting when this oscillator ceases to be coerced. As shown, the triode portions of the triode-hexodes V1 and V3 are the oscillators, and the hexode portions form a buffer amplifier and a mixer respectively, the output being taken from the mixer through a low-pass filter and a cathode follower stage V4. Oscillator B is periodically coerced to oscillate at the frequency of A by opening a gate valve V2 which feeds the output of A into B, The opening pulse for V2 comes from an external source and is delayed by a valve V6 so that oscillator B may be prepared for coercion by feeding the input pulse in a negative sense to its anode through valve V5, this allowing the free oscillations in B to die away before the coercing oscillations arrive. In a modification, the output of A is fed to B constantly and the presence or absence of the negative pulse on the anode of B determines whether it oscillates at its natural frequency or is coerced into oscillation at the frequency of A. The oscillator may be used for testing video or audio amplifiers in conjunction with a cathode-ray oscillograph, or the associated cathode-ray tube in the case of video amplifier, the controlling pulses being synchronous with the time-base in each case. The oscillator may also be used for calibrating radar sets, the sine wave output being converted to a " pip " waveform and the controlling pulse derived from the transmitter.
Patent GB-1430603-A (GB)
Title: Bit for drilling wells in the earth
IPC: E21B17/10
Filed: 1973-07-26
Abstract: 1430603 Boring earth &c ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES (ELF) 26 July 1973 [18 Aug 1972] 35594/73 Heading E1F A drilling bit has an eccentrically-mounted cylindrical roller 1, 2 having a diameter which is less than the diameter of a hole drilled by the bit but greater than the radius of the hole, and a connector 26 for coupling the drill bit to a drill pipe, the connector having eccentric masses 29, (30), Fig. 4 (not shown), for centring and balancing the bit. The roller has irrigated diamond cutting segments 4 on its flat cutting face and cutting teeth 3 on its cylindrical peripheral face. Further antiabrasive diamond elements 1A, 2A are provided on the cylindrical surface of the roller. A discharge nozzle 14 for irrigating fluid is provided in the roller, this may discharge fluid axially as shown or be selectively inclined.
Patent GB-430472-A (GB)
Title: Improvements in and relating to screw propellers
IPC: F16D21/04
Filed: 1934-12-12
Abstract: 430,472. Friction clutches. STRUCK, W., 3, Liliencrostrasse, Steglitz, Berlin. Dec. 12, 1934, No. 35715. Convention date, Dec. 14, 1933. [Class 80 (ii)] [See also Group XXXIII] Screw propellers 1 and 2 are secured to discs 5, 6 and 7, 8, mounted on the hollow shaft 3 so as to be free thereon. Keyed to the shaft are blocks 16, 17 having stops 20 against which one end of the helical spring 18 or 19 abuts. The other end is adapted to bear against the inclined end of a stop 22 or 23 and these are raised or lowered by means of a rod 4 slidable in shaft 3 and having a cam groove 24. In the position shown, the spring 18 is frictionally gripping the block 16 and the propeller 1 is being rotated whilst the propeller 2 is free since the spring 19 is held up by the stop 23 free from the corresponding block 17.
Patent GB-1028879-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: G01N23/207
Filed: 1964-09-01
Abstract: 1,028,879. X-ray spectrometers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 1, 1964 [Sept. 4, 1963], No. 35733/64. Heading H5R. X-ray spectrometer apparatus utilizes two detectors, each oriented to detect X-rays diffracted by a respective set of diffracting planes in the analysing crystal. X-rays from the tube 2 (Fig. 1) are directed at the specimen 1 to be investigated and the secondary X-rays generated, having wavelengths characteristic of the specimen, are passed through collimator 4 to the analysing crystals. X-rays reflected by the crystal are passed through collimators 10 and 11 before reaching detectors 7, 8 mounted on a carriage 9 which is coupled with the crystal to rotate about an axis 6 at twice the angular velocity of the crystal. Thus reflections from two planes of the crystal, which may be of quartz, are detected simultaneously. The detectors are always arranged so that the normal to a set of planes bisects the angle between incident and diffracted beams. Transmitted diffraction may be used with appropriately thin crystals.
Patent GB-429777-A (GB)
Title: Improvements in and relating to the plastering of walls, ceilings and like surfaces
IPC: E04F13/04
Filed: 1933-12-20
Abstract: 429,777. Wall &c. surfacings. CARPENTER, G., 22, Ditton Road, Surbiton, Surrey. Dec. 20, 1933, No. 36833. [Class 20 (iv)] A wall or like surface adapted to be plastered comprises a base P of plasterboards, fibreboards, or the like secured to a framework and provided on the outer face with a plurality of relatively narrow joint strips a which are arranged to extend along, and directly across, the joints between the boards and are secured in position by plaster or like cementing medium d adapted to fill the said joints. The cementing medium may be provided on the rear face of the joint strips prior to the application of the latter to the boards, or it may be first filled into the joints and the strips then applied. The strips may be provided with perforations or corrugations, or both these features, and in these cases the strips are first secured by nails or clips, and then the plaster filling, which may be the final plaster covering applied to the face of the boards, is filled in through the perforations or corrugations to the joint space. The strips a may be flat and provided with reinforcing wires or strips w as shown in Fig. 1, or they may be folded to provide a web portion e, Fig. 6, with a wire reinforcement w embodied in the folded edge portion a and projecting from the side edges. As shown in Fig. 2A, the strip is folded to provide a central web e, which may be reinforced by a metal strip f fastened by adhesive or rivets. Projections g may be punched out of the web to form spacers for mounting the web in correct position in the joint or for entering the edges of the board. The central web may be formed entirely of metal as shown in Fig. 3, and attached to portions a<1> bent from the strip a. The web f, Fig. 4, is provided with tongues h, to which the joint strip a is secured by prongs j or rivets. The web f may also be formed of double-thickness metal, and the tongues h may be inserted through the strip a and fastened thereto by prongs j. The metal web f, Fig. 7, may be provided with integral clips m for engaging the rear face of the boards. In .another form, metal clips n, Fig. 8, are adapted to carry a backing strip k and the joint strip a. The joint on the rear face of the boards may be covered by a fibre strip attached to the boards. The Provisional Specification describes also the strips as backed with wire cloth or thin strip metal, which may be perforated or expanded, and such backing members may be fixed in position prior to the application of the strips.