baber/WOPTO huggingface dataset:
Patent GB-1188535-A (GB)
Title: Improvements in or relating to Signal Correlators
Inventor: WILLIAMS RAYMOND THOMAS FREDER
IPC: G06G7/19
Filed: 1966-08-25
Abstract: 1,188,535. Signal correlators. PLESSEY CO. Ltd. 11 Aug., 1967 [25 Aug., 1966], No. 38188/66. Heading G4M. The binary elements of a set are applied to respective stages of a multistage correlator providing an output representing the number of matches with a set of reference elements. In one embodiment pairs of F.E.T.'s (field effect transistors) 3, 5 and 4, 6 are connected in parallel between corresponding outputs of register stages 1, 2 which store the two sets of binary elements, a conduction path only being established across terminals 8, 9 when the elements applied to a particular pair of stages correspond. The voltage at terminal 9 corresponds to the number of matching pairs of elements. In another embodiment, Fig. 4 (not shown), the input set of elements is shifted into a shift register, the 1 or 0 output of each stage, selected in accordance with a reference set of elements, is connected to the gate of an F.E.T. 4. A further shift register is used to gate all F.E.T.'s 6 in turn for each shift operation of the first register so that a number of pulses corresponding to the number of matches with the reference set is obtained at output 9 for each position of the input set of elements.
Patent GB-843500-A (GB)
Title: Improvements in or relating to speed indicators for rotatable members
IPC: G01P1/10
Filed: 1956-12-17
Abstract: 843,500. Speedometers. TELEFUNKEN G.m.b.H. Dec. 17, 1956 [Dec. 15, 1955], No. 38348/56. Addition to 815,322. Drawings to Specification. Class 106 (3). [Also in Group XXXVIII] In a correct-speed indicator for a gramophone turntable as in the parent Specification in which correct speed is indicated by optimum vibration of a vibratable indicating member, means are provided for producing an audible signal at a predetermined amplitude of displacement of the vibratable member. Such means may comprise a pair of contacts maintained at different electrical potentials, the resulting signals from which may be amplified by the audio amplifying stage of the apparatus and reproduced through the loud-speaker thereof.
Patent GB-965145-A (GB)
Title: Traveling-wave tube
IPC: H01J23/30
Filed: 1962-10-10
Abstract: 965,145. Travelling wave tubes; microwave filters. HUGHES AIRCRAFT CO. Oct. 10, 1962 [Nov. 20, 1961], No. 38364/62. Headings H1D and H1W. To prevent oscillation in a travelling wave tube, e.g. at the upper and/or lower limits of its operating band, cavities are provided, coupled to the slow wave structure, critically tuned to the frequency to be suppressed and filled with lossy material. The slow wave structure comprises coupled cavities defined on their outside by a bore 177 in spacers 174 of non-magnetic material, e.g. copper, possibly silver or gold-plated, having webs 176, 178 either or both of which may contain a cavity according to the invention. These are of two types: the first, 180, is completely filled with lossy material, e.g. silicon carbide with either forsterite, alumina or talc in specified proportions, and its resonant frequency is determined by selecting its diameter and the width of the coupling iris 182, while the second, 190, has a ring 191 of lossy material within which is a ceramic button 193 (with or without lossy material) and a metal stub 195, e.g. molybdenum; in this case tuning is by selection of the thicknesses a, b of the button and stub. Typical dimensions are given. Preferably, the solid loaded cavities are tuned to attenuate at the upper cut-off frequency while the others are tuned to the lower one, but any cavity may be tuned to any selected frequency in the overall band. A series of cavities may be stagger tuned, one set about the upper and others about the lower frequency (Fig. 16, not shown). An example is given (Fig. 11, not shown), of a particular assembly employing spacers having none, one, one and two attenuating cavities of both types, and there are further embodiments of spacers having three or four such cavities each. The stub-loaded cavities may alternatively be arranged to attenuate the lower frequency at their fundamental resonance and the upper frequency at their next higher order of resonance. It is stated that greater separation between these frequencies is obtainable with the stub loaded as opposed to the solid-filled cavities. The construction of a particular T.W.T. is described in detail, and is basically that described in Specification 911,918. It includes a permanent magnet structure, a fluid-cooled collector, impedance step input and output transformers, and the slow wave structure is divided into three sections by special spacers and polepieces which accommodate de-coupling buttons of lossy material (Figs. 1, 3, 4, not shown). The spacers may vary in thickness to provide variation of main cavity length as a function of tube length.
Patent GB-338035-A (GB)
Title: Improvements in lighting systems for motor vehicles
IPC: B60Q1/26
Filed: 1929-12-16
Abstract: 338,035. Petersen, L. V. Dec. 16, 1929. Lighting, systems of; vehicle lamps.-In a system of lighting for road vehicles a double lamp 1 is mounted on the near side of the vehicle behind the driver and comprises an under lamp 4 adapted to project a beam of light 3 to illuminate the edge of the road directly in front of the vehicle, and an upper lamp 5 adapted to project a longer beam over the front mudguard. The lamps 4, 5 mav be adjustably mounted within an outer casing 6, and the latter may be fitted with a reversing lamp 7 and be mounted on the rear mudguard 2, the body panel, or the hood stays of the vehicle.
Patent GB-1354906-A (GB)
Title: Water-soluble reactive monoazo dyestuffs and process for their  preparation
IPC: C09B62/51
Filed: 1971-08-17
Abstract: 1354906 Amino benzene derivatives FARBWERKE HOECHST AG 17 Aug 1971 [17 Aug 1970] 38530/71 Heading C2C [Also in Division C4] 4 - Aminobenzoic acid N<SP>1</SP> - γ - (# - hydroxyethyl - sulphonyl) - propylamide is prepared by reacting allyl-amine with 4-nitrobenzoyl chloride to give N-allyl-4-nitrobenzamide which is condensed with 2-mercapto-ethanol and the product oxidized to give 4-nitrobenzoic acid- N<SP>1</SP> - γ - (# - hydroxyethylsulphonyl) - propylamide which is finally reduced with 4 - Aminobenzoic acid - N - γ - (# - hydroxyethylmercapto)-propylamide is prepared by condensing 2-mercapto-ethanol with allylamine to give γ - aminopropyl - (# - hydroxyethyl)- sulphide which is condensed with 4-nitrobenzoyl chloride and the NO 2  group reduced. 3 - Aminobenzene - sulphonic acid - N<SP>1</SP> - methyl - N - # - (#<SP>1</SP> - hydroxyethyl - sulphonyl)- ethylamide is prepared by condensing 2-mercapto - ethanol with 2 - chloro - ethyl - N - methylamine to give #-N-methyl-aminoethyl-(#<SP>1</SP>-hydroxyethyl)-thioether which is condensed with 3-nitrobenzenesulphochloride, the product oxidized to the sulphone and the NO 2  group reduced.
Patent GB-918496-A (GB)
Title: An improved process for the catalytic oxidation in liquid phase of paranitro-ethylbenzene to paranitroacetophene
Inventor: LEMETRE GIACOMO
IPC: C07F9/22
Filed: 1960-11-10
Abstract: A process for the catalytic oxidation of paranitroethylbenzene to paranitroacetophenone in the liquid phase is carried out at a temperature between 100 and 140 DEG C. in the presence of a catalyst soluble in the paranitroethylbenzene and consisting of one or more metal salts of one or more fatty acids, with oxygen, or an oxygen containing gas, saturated with water vapour at a temperature between 50 and 100 DEG C.  Catalysts specified are cobalt, manganese and silver oleates or stearates alone or mixed with one another. Residual oils remaining after separating paranitroacetophenone from the reaction product may be recycled, if necessary after neutralisation or oxidation by means of potassium permanganate, to the oxidation stage alone or mixed with further paranitroethylbenzene.  The use of potassium bichromate or hydrogen peroxide instead of potassium permanganate is mentioned. Examples are furnished.  Paranitrobenzoic acid is produced as by-product.
Patent GB-949849-A (GB)
Title: Improvements in or relating to apparatus for coiling elongate material
Inventor: TRAPP GEORGE ELMER
IPC: B21C47/32
Filed: 1960-11-10
Abstract: 949,849. Winding drums. UNITED ENGINEERING & FOUNDRY CO. Nov. 10, 1960, No. 38626/60. Heading B3E. [Also in Divisions B6 and F2]  An expansible reel for coiling strip comprises a primary reel element, a segment pivotally engaged with said element, means for pivoting said segment relative to said element to attain an expanded or collapsed condition for said reel, and means for securing the end of a strip to be coiled upon said reel including a first gripper jaw fixably secured to said element, and a second gripper jaw connected to said segment for movement with said segment and in at least two directions relative thereto. A primary reel element 11 has two segments 12 pivoted thereto in bearings 14 and rocked about the pivots, to expand the reel, by axial movement of an element 25 having wedge projections 24 engaging wedge projections 23 in a keystone member engaging the segments 12. A jaw 28 fixed to primary reel element 11 cooperates, to grip the end of strip S to be wound on the reel, with a movable jaw 30, slidable on an inclined surface of a cam member 33 movable in a recess 35 in the segment 12, to a limited extent, against spring means 42. The jaw 30 is also urged by a spring 31 against a pusher member 45 slidable in the segment 12 and bearing at one end against the reel element 11 and at the other end against the jaw 30. As the reel expands the pusher member 45 forces the jaw 30 up the inclined surface of the cam member 33 to grip the strip S. The jaws 28 and 30 are shaped to form a reverse bend in the strip as the jaws come together.
Patent GB-1008496-A (GB)
Title: Improvements in or relating to visual display devices
Inventor: DEAN DEREK JOHN
IPC: G09G3/04
Filed: 1963-10-01
Abstract: 1,008,496. Indicators; electric selective signalling. SANGAMO WESTON Ltd. Oct. 1, 1964 [Oct. 1, 1963], No. 38659/63. Headings G4H and G5O In the electrically-operated indicator or digital read-out device disclosed in Specification 919,057, so as to maintain accurate registration of the projected image despite any variations in the control current the projection strip 22 has an optical holding track 40 co-operating with a light beam 41 directed therethrough on to a photo-cell 42 or the like. The track 40 includes abrupt optical density variations disposed at positions related to the positions of the projection images 23 whereby when any one of the images is brought into the projection light beam the output from the photo-cell provides a signal for application to the moving coil instrument movement 19 to bring the projected image to a predetermined position on the viewing screen 38. The images may be numerals, alphabetic characters or like symbols. A condensing lens 43 concentrates the light of the beam 41 on to the photo-cell which preferably comprises a transistor or cadmiumsulphide cell. As shown, the track 40 comprises opaque and transparent areas 48, 49. If one of the images 23 is brought substantially in register with the screen viewing area and the output of the photo-cell is applied to the coil winding of the movement 19 instead of the normal control current, then the photo-cell output causes the strip to move to a position where the cell output obtained by its illumination from the portion 50 (Fig. 4) of the beam 41 balances the torque of the restoring spring of the movement 19. The photo-cell derived holding current may be switched to the moving coil in addition to the control current (Fig. 5, not shown) or a switch may disconnect the normal control current as or after the holding current is switched on (Fig. 6, not shown).
Patent GB-827927-A (GB)
Title: Process and apparatus for heating a portion of a workpiece performing a substantially uniform motion in its longitudinal direction
IPC: F27D99/00
Filed: 1956-12-21
Abstract: 827,927. Breaking. INNOCENTI SOC. GENERALE PER L'INDUSTRIA METALLURGICA E MECCANICA. Dec. 21, 1956 [Dec. 22, 1955], No. 38957/56, Class 83 (4). [Also in Group XI] A workpiece of which the longitudinal dimension exceeds its transverse dimension and which is of uniform transverse cross-section, has a portion heated electrically as the workpiece is moved at a uniform rate, the said portion being heated successively by means energized in turn and in synchronism with the movement of the workpiece; by drawing the workpiece lengthwise after the localized heating, the two sections on both sides of the heated portion may be separated. As shown, iron tube 2 issues from mill rollers 1 and passes through a refractory tube 3 surrounded by a plurality of inductors 4, the iron tube then travelling through rollers 23 which do not normally engage the tube and which have a surface speed higher than the linear speed of the tube. An inductor energizing device 5 consists of a primary winding 9 moving within secondary windings 13 each of which is connected to an inductor coil 4. A shaft 8 carries rings 11 insulated from each other by a disc 17 to which leads 10 supplying and supporting the winding 9 are secured. A.C. is fed to brushes 12 which engage the rings 11, and the device is rotated via gears 6, 7 by a shaft 50 of one of the rollers 1. The successive energization of inductor coils 4 as the device 5 is rotated causes a longitudinally limited region only of the workpiece to be heated, and as the region leaves the last coil 4, the portion of the iron tube on one side of the region is separated from the portion on the other side by bringing the fast rotating rollers 23 into contact with the tube. When a greater number of coils 4 and windings 13 are necessary, two or more inductor energizing devices may be provided, the A.C. generator being connected in turn to the devices by a thyratron or other means, Fig. 6 (not shown). In a further modification, Fig. 7 (not shown), each secondary winding is coupled with a primary coil, the coils being successively energized by means of thyratrons. When low powers or reduced rates of feed of the tube are used, mechanical or relay switches can be used for controlling energization of the inductors. Workpieces of dielectric material may be heated using electrodes in place of the inductors. Specification 827,926, [Group XXXVII], is referred to.
Patent GB-1036138-A (GB)
Title: Thermal fuse screw
IPC: B60C23/00
Filed: 1962-10-16
Abstract: 1,036,138. Valves. BENDIX CORPORATION. Oct. 16, 1962 [Nov. 3, 1961], No. 39150/62. Heading F2V. [Also in Divisions A5 and B7] A thermal fuse screw, for releasing the tyre pressure from behind the rim 10 of an aircraft wheel if the temperature becomes excessive, comprises a screw body 14 having a longitudinal stepped bore 30, 32, a fusible plug 42 clamped in the bore and a spherical seal 36 on the pressurized side of the plug, the seal being formed oversize to the bore 32. The plug is held in place by a spacer sleeve 48, held in the bore by a retaining nut 50. The seal 36 has a tail 38 extending beyond the nut 50, which tail moves outwards as the plug 42 is deformed by creep, to indicate when the plug requires replacement.
Patent GB-1190157-A (GB)
Title: Wire Eyebolts
IPC: F16B35/00
Filed: 1968-08-15
Abstract: 1,190,157. Eyes. TORQUE TENSION BOLT CO. (PTY) Ltd. 15 Aug., 1968 [15 Aug., 1967], No. 39153/168. Heading D1T. [Also in Divisions E2 and F2] A wire, eyebolt Has. a wire rope shank 1 and' the rigid metal eye 7 is connected to the shank by 'a. ferrule 2 compressed onto 'the shank. A screw .threaded stud 6 is/connected "to the other end of .the shank by a ferrule 3. The compression of the ferrules, which are cylindrical and preferably of mild steel, forms portions 4, 5 of square cross-section. Epoxy resin adhesive: may be inserted into the ferrules prior to their clamping on the ends of the shank. The eye 7 is.cold formed from mild steel and is welded to the ferrule 2.
Patent GB-906948-A (GB)
Title: Improvements in and relating to sowing machines and the like
IPC: A01C15/00
Filed: 1960-11-15
Abstract: 906,948. Seed sowing machines; fertilizer distributers. CHARPENET, L. J. Nov. 15, 1960 [Nov. 16, 1959], No. 39207/60. Class 6(1). A seed sowing machine, or fertilizer distributer is provided with two hoppers A, B hinged together on a vertical axis c so that they may be folded for transport as shown in Fig. 3. Each hopper A, B is supported by a wheel carried by a frame u articulated to each hopper. In the position shown in Fig. 1 each wheel drives through a dog clutch a distributing shaft on which are mounted obliquely positioned discs. The frames u are held in the position shown in Fig. 1 by means of pins o. When the hoppers are folded back the wheels and frames u are moved through 90 degrees so that the pins o engage at positions p, q. Prior to moving the frames u the dog clutch drive to the distributing shafts is disconnected.
Patent GB-1442937-A (GB)
Title: Silver oxide electrical cells
IPC: H01M6/06
Filed: 1974-09-09
Abstract: 1442937 Silver oxide primary cells DAINI SEIKOSHA KK 9 Sept 1974 [11 Sept 1973 26 Dec 1973] 39214/74 Heading H1B A primary cell comprises negative active material 4, a separator 6 and positive active material 7 consisting of divalent silver oxide and amorphous carbon. The cell includes an anode can 2 sealed to a cathode can 1 by a packing 3. An electrolyte absorber 5 and the cellulose separator 6 separate the anode and cathode chambers. The positive active material is formed by a mixture of divalent silver oxide powder and amorphous carbon powder. The carbon may be charcoal, activated carbon, carbon black or powdered coke. The electrolyte comprises an aqueous solution of sodium hydroxide or potassium hydroxide with zinc oxide. Sodium or magnesium bromide or an oxyhalogenic salt may be added to the electrolyte. The negative active material consists of mercury added to zinc powder.
Patent GB-1476518-A (GB)
Title: Multi-stage regenerative fluid pump
IPC: F04D23/00
Filed: 1974-09-09
Abstract: 1476518 Circumferential-flow pumps and compressors DRESSER INDUSTRIES Inc 9 Sept 1974 [18 Sept 1973] 39271/74 Heading F1C A multi-stage regenerative fluid pump, e.g. for use as a compressor or a vacuum pump, comprises a rotor having axially-spaced rows of pockets 32, Fig. 1, in its periphery aligned with generallyparallel axially-spaced grooves 20 in the housing. The grooves are inter-connected by cross-over portions (21a, b, c), Fig. 4 (not shown), and communicate with inlet and outlet passages formed in bosses 22, 26. When used as a vacuum pump the rotor sucks in fluid via the boss 22 and discharges it via bosses 26. For use as a compressor the rotor is first removed from the housing, replaced the other way around and then rotated in the opposite direction, whereby fluid is drawn in via bosses 26 and exhausted via boss 22. The leading edges of the pockets may be slightly inclined relative to the rotor axis, Fig. 8 (not shown), and may be inclined between 0 and 60 degrees to a radial line, Fig. 5 (not shown). The housing may be provided with a second set of three inlet and outlet passages lying diametrically opposite those of Fig. 1. Alternatively, the housing may have a single inlet and a single outlet passage.
Patent GB-1526476-A (GB)
Title: Ocular insert for treating aqueous deficient dry eye
IPC: A61L27/00
Filed: 1976-09-22
Abstract: 1526476 Ocular insert ALZA CORP 22 Sept 1976 [28 Oct 1975] 39320/76 Heading A5B Ocular inserts for treating dry eye comprise a therapeutic agent (a) capable of causing osmotic flow of water from the interstitial fluid to the tear film, (b) biologically compatible with the eye and (c) having no systemic or topical pharmacological or physiological effects at the dosage used except to induce aqueous flow, contained within a polymer body for insertion in the cul-de-sac of the eye, the polymer body releasing the therapeutic agent over a period of time and in sufficient quantity to produce the desired effect of inducing the said aqueous flow.
Patent GB-830669-A (GB)
Title: Improvements in or relating to low alloy steels
IPC: C22C38/12
Filed: 1956-12-28
Abstract: A weldable boron-treated columbium steel consists of C 0.03 to 0.08%, Mn 0.3 to 1.0%, Si 0.02 to 0.35%, Cb 0.02 to 0.5%, B 0.003 to 0.007%, and Fe the remainder.  The steel may also contain 0.04 to 0.06% V, and it may be normalized at a temperature of 1800 DEG  to 2100 DEG F.
Patent GB-1283973-A (GB)
Title: Improvements relating to welding current connectors for use with electric arc welding equipment
Inventor: SPACKMAN ARTHUR DENNIS
IPC: H01R4/64
Filed: 1969-08-07
Abstract: 1283973 Fusion welding BRITISH RAILWAYS BOARD 7 Oct 1970 [7 Aug 1969] 39566/69 Heading B3R [Also in Division H2] An electrical connector for simultaneously connecting an earth lead and a welding current return lead to a workpiece to be welded comprises a C-shaped clamp 1 having two jaws 6, 7 with the leads connected respectively thereto' one of the jaws 7 being electrically insulated from the other and from the body of the clamp.
Patent GB-1018130-A (GB)
Title: An improvements in or relating to angling reels
IPC: A01K89/027
Filed: 1963-10-08
Abstract: 1,018,130. Fishing reels. E. WILLIAMS. Oct. 7, 1964 [Oct. 8, 1963], No. 39605/63. Heading A1A. A fixed spool fishing reel has a dished brake drum 26 secured on the main driving spindle 16 for contact by the user's thumb.
Patent GB-865944-A (GB)
Title: Improvements relating to machines for moulding pipes, tubes or the like from concrete or the like
IPC: B28B21/90
Filed: 1957-12-20
Abstract: 865,944. Machine for moulding concrete pipes. NIELSEN, O. Dec. 20, 1957 [Dec. 21, 1956], No. 39646/57. Class 87(2). A ring 20 located in the space between an outer mould 8 and a core 14 forms the bottom of the mould cavity 19, the outer mould and core being interconnected but displaceable relative to each other such that during the mould removing operation when one of these members has been moved some distance relative to the moulded pipe on the bottom ring 20, the other member is then forced to be carried along with it. The core 14 is secured to a cross 15 from the ends of which are attached bolts 16 slidable through brackets 17 secured to the outer mould 8. Thus when mould 8, which is coupled via vibration damping blocks 11 to guides 6 slidable on columns 5, is forced down by means of the hydraulic devices 31, it breaks away from the moulded pipe and moves with respect to the pipe and core 14 until coming into contact with the cross 15 when both core and mould move together exposing the finished pipe resting upon the stationary ring 20. Two hydraulic devices 31 are used and these are positioned on a cross beam 30 on which a shaft 33 is rotatably mounted, the ends of the shaft carrying wheels 34 about which pass endless chains 35 running parallel to the columns 5. Each slide 6 is connected to the adjacent chain 35 thus ensuring that they move in an exactly uniform manner. In an alternative arrangement, the bottom ring 20 may be movable in which case the outer mould 8 is stationary.
Patent GB-975824-A (GB)
Title: A method and apparatus for controlling hydraulic apparatus arranged to maintain constant tension in a safety rope or cable
IPC: B66D1/08
Filed: 1961-11-07
Abstract: 975,824. Hydraulic transmission of power. GEBR. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI. Nov. 7, 1961 [Nov. 10, 1960], No. 39754/61. Headings F2C and F2D. Apparatus for providing a constant tension on a rope supporting a machine, such as a coal-cutting machine, comprises a pump 2 driving a motor 4, which drives a winch for the rope. A separate pump 7 supplies liquid to the suction line 1 or 1<SP>1</SP> of the transmission, providing a circulation to prevent heating, and also supplies liquid to a control valve 8 whose end is subjected to the high pressure in the line 1 or 1<SP>1</SP> through valve 10 and conduit 11, the valve 8 being loaded in the opposite direction by an adjustable spring 16. The valve 8 controls the fluid pressure acting in spaces 19, 21 on a piston 5, the movement of which varies the pump output to maintain a predetermined pressure in the high pressure line 1 or I<SP>1</SP> which thereby maintains a constant circumferential force on the winch.