baber/WOPTO huggingface dataset:
Patent GB-1172370-A (GB)
Title: Improvements in Alternating Current Generators
IPC: H02M7/162
Filed: 1966-12-23
Abstract: 1,172,370. Automatic voltage control. ROBERT BOSCH G.m.b.H. Dec. 23, 1966 [Dec. 24, 1965], No. 57829/66. Heading G3R. In an A. C. generator 10, e.g. for a vehicle, having permanent magnetic excitations and connected to its A.C. windings 11-13 to provide a D.C. output, a set of rectifiers 17-19 and 22-24 the latter of which are controllable by a regulator 27 connected to the D.C. output, operation of the regulator when starting the generator from rest is effected by applying to the D.C. output a voltage from an additional rectifier 35 connected in parallel with one, 24, of the controllable rectifiers, the current in such additional rectifier being controlled by means in dependence on the voltage across the D.C. output. As shown, the means comprises a relay 33 whose contacts 34 are opened by a coil 32 when the voltage reaches a valve at which a regulator blocking oscillator formed by a transformer 43 and a transistor 46 commences to oscillate and switch on the controllable rectifiers 22-24. A capacitor 29 is connected across the D.C. output leads 25, 26 to prevent voltage peaks during such switching.
Patent GB-1360800-A (GB)
Title: Reciprocating pumps
IPC: F01L23/00
Filed: 1970-12-05
Abstract: 1360800 Reciprocating pumps SIMON ENG DUDLEY Ltd 17 Nov 1971 [5 Dec 1970] 57905/70 Heading F1A A pump, e.g. for concrete, comprises two pistons 12, 13 operated to provide continuous delivery, one piston performing its delivery stroke while the other performs its suction stroke, the suction stroke being more rapid than the delivery stroke, and the beginning of the delivery stroke of one piston overlapping the end of the delivery stroke of the other, the piston speeds during overlap being half of the normal delivery speed. Pistons 12, 13 are actuated by hydraulic motor pistons 16, 17, which engage plungers 32 to 37 at the ends of their strokes to change over valves 29, 30 controlling flow between a supply reservoir 26, pump cylinders 10, 11 and outlet 31, and valves 24, 25 controlling flow from hydraulic supply pumps 22, 23 to motor cylinders 18, 19. Valve 25 divides the supply from pump 23 evenly between cylinders 18, 19 during the half-speed delivery stroke overlap.
Patent GB-1286577-A (GB)
Title: Hospital glove
IPC: A61B19/04
Filed: 1970-12-09
Abstract: 1286577 Hospital glove RHONE-POULENC SA 9 Dec 1970 [9 Dec 1969] 58505/70 Heading A3V A glove, intended principally for hospital use, having the length of a normal adult hand and forearm has a wide mouthed sleeve portion 1, a first separate recess 2 for the thumb, a second separate recess 3 for the index finger and a third separate recess 4 for the other three fingers, the said third recess having twice the width of these three fingers, the palm portion of the glove and the sleeve each being twice as wide as the palm of the hand and the lengths of the palm portion and of the said recesses being those of the corresponding palm, fingers and thumb of the hand. The glove can be made from two sheets of polyethylene or polyvinyl chloride film heat welded at the edges. Specific dimensions and angular relations for the various parts of the glove are given in the Specification. Alternatively the glove may be formed from an extruded polyethylene sleeve. The glove may be sterilised by γ irradiation.
Patent GB-1369835-A (GB)
Title: Brushes for electric machines
IPC: H02K13/00
Filed: 1971-12-20
Abstract: 1369835 Brushes MORGANITE CARBON Ltd 20 Dec 1972 [20 Dec 1971] 59025/71 Heading H2A A brush comprises a solid block carbon body 10 with carbon or other electrically conductive fibres arranged in layer form 12 at the leading/ trailing sides of the block, the fibres being firmly secured to the block at 13 but being free at the edges 14 of the contact face. In further embodiments, the fibres are located in a channel (17) in the side of the block, as in Fig. 2 (not shown), or are woven into the form of a cloth (20) which is arranged on the side of a block, as in Fig. 3 (not shown).
Patent GB-1403619-A (GB)
Title: Printing processes
IPC: C09B1/06
Filed: 1972-12-22
Abstract: 1403619 Transfer printing YORKSHIRE CHEMICALS Ltd 19 Dec 1973 [22 Dec 1972] 59367/72 Heading D1B Synthetic fibres e.g. polyesters are transfer printed with transfers bearing a printing ink containing a dye of formula: in which R 1  and R 3  are hydroxy, amino or alkyl-amino groups, R 2  is a nitro or cyano group, R 4  is a hydrogen or halogen atom. Metal foil, paper and regenerated cellulose film may be used for the transfer substrate, the printing inks being aqueous, organic or aqueous/organic media.
Patent GB-1460917-A (GB)
Title: Brush
IPC: A46B13/08
Filed: 1973-12-27
Abstract: 1460917 Hairbrushes J AKERMAN 27 Dec 1973 [29 Dec 1972 21 March 1973 14 Nov 1973] 59785/73 Heading A4K A hairbrush comprises a brushing head 15  mounted on a spindle 14 supported for rotation by a handle 12 such that rotation of the head and spindle relative to the handle imparts tension to a spring 22 or 28 disposed between the handle and spindle, the spring automatically effecting a reversed rotation of the spindle and head when said first-mentioned rotation ceases, the head 15 including transverse bristles. In Fig. 1, a nut 24 co-operates with a helical groove 25 on the spindle and is axially slideably, but non-rotatably, mounted in the handle 12 thereby compressing the compression spring 22. A ring 20 extending from handle 12 can be radially deformed by a nut 21 to grip the spindle 14 and prevent said rotation. The brush head 15 may be detachably mounted on the spindle 14 by a screw 16. The spindle 14 may be detachably mounted in the handle 12 by a clip 27. In Fig. 4, the spring comprises an elastomeric torsion bar 28 which is coupled to the spindle 14 for rotation therewith by gears 39 and a spindle 31 or by an endless belt and pulleys. A barrel 35 is fixed to the spindle 14 for rotation therewith and detachably receives the head 15 and co-operates with a bolt 38 provided on a control button 37  axially slideable, but non-rotatable, on handle 12, to prevent rotation of the spindle. In a modification, the spring comprises a spiral torsion spring The brush may form part of a hair dryer.
Patent GB-1331999-A (GB)
Title: Decurling device for rolled sheet
IPC: G03G15/00
Filed: 1970-12-23
Abstract: 1331999 Feeding webs RICOH KK 23 Dec 1970 [27 Dec 1969] 61238/70 Heading B8R [Also in Division G2] A sheet decurling device 9, Fig. 1, associated with a photo-electric reproduction apparatus (see Divisions G2-G3) comprises a pair of rollers 7, 8 urged towards each other, the roller 7 of larger diameter being made of elastomeric material such as foamed rubber and facing the curled side of the web which is forced into the periphery of the roller 7 by the roller 8 made of metal. The web 1 is unwound from a core 2 by intermittently driven rollers 3, 4 actuated in response to operation of a switch (not shown) by the reproduction apparatus. In another embodiment the roller 7 is replaced by a roller 53, Fig. 5, which is mounted on one end of a fulcrum lever 52, the other end of the lever supporting a sensing roller 54 in contact with the web periphery, whereby the lever under the influence of a spring 56 forces the roller 53 into contact with a roller 57 with a force which is inversely proportional to the web roll diameter.
Patent GB-639807-A (GB)
Abstract: 639,807. Moulding-machines and processes. JONES & ATTWOOD, Ltd. Jan. 1, 1948, No. 22. Addition to 606,534. [Class 83 (i)] In making foundry moulds for pipes &c. as in the parent Specification, a hollow mould is formed, before introducing the shaped plunger. This may be effected by a screw conveyer k having a cylindrical projection o which is inserted in the flask c, this having its other end closed by a plug f operated by a fluid pressure cylinder h. The screw k has a single thread with a double thread n at its exit end. It is rotated by worm gearing m and moves the flask to the right as it fills. This movement may be assisted or resisted by a fluid pressure cylinder e. When the flask is filled, an extension p of the casing i is moved to the left to allow the rotating screw to give a smooth finish to the packed sand. The same conveyer can be used for flasks of different diameter if an extension p of the required diameter is used. The machine for the second operation is similzr to that in the parent Specification except that the core, for forming an axial hole through the sand, is omitted, the two bearings 5, Fig. 4, are raised by a leaf-spring 6, and closure rings 19 are applied to the ends of the sand by yokes not shown, and fluid pressure cylinders 21.
Patent GB-720634-A (GB)
Abstract: 720,634. Testing transit time of networks. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 28, 1952 [Aug. 31, 1951; Jan. 12, 1952; Feb. 8, 1952] No. 21642/52. Class 37. [Also in Group XL (c)] In a system for measuring the transit time of a network N for various frequencies, an adjustablefrequency oscillator O feeds a modulator M, the output of which after passing the network is detected at D and fed back via an amplifier V to the lowfrequency input of the modulator. The modulating frequency that establishes itself is that for which the phase shift round the loop M, N, D, V is 360 degrees or a multiple thereof and so depends on and gives a measure of the transit time of network N for the carrier frequency. This modulating frequency is indicated on a meter F. The transit time of the amplifier for the low-frequency is preferably large compared with that of the network for the modulated carrier. The high and low-frequency paths may contain appropriate filters. The amplifier V may include an amplitude-limiter or may be subject to automatic gain control exercised by a pilot current of suitable frequency obtained from a generator Q, Fig. 3. The gain control may be exercised on an amplifier between the oscillator O and the modulator instead of on the amplifier V, Fig. 4 (not shown). Suitable modulators are described, Figs. 5, 6 (not shown), which exclude from their outputs any component having the modulating frequency (see Group XL (c)). Alternatively, a component of this frequency appearing at the output of the network may be suppressed, owing to its small amplitude, by a square-law detector as shown in Fig. 7. This comprises a pair of pentodes 10, 11 to which the signals are fed in opposite phase, the output circuits being in parallel.
Patent GB-2000173-A (GB)
Title: Luminescent screen
IPC: H01J31/12
Filed: 1978-06-21
Abstract: Luminescent screen suitable for use, for example in cathode-ray tubes, electron microscopes, electron spectroscopes and for forming pictures in X-ray image intensifiers. The luminescent screen comprises a self-supporting monocrystalline body including a luminescent layer containing at least one activator. Preferably the luminescent surface portion 5 is grown on the substrate portion 4 by liquid phase epitaxy or formed by activators diffused into a monocrystalline body. The screen is exemplified by garnets of Y, Ga, Gd and Al activated by Tb, Tm, Eu, Ce or Nd. <IMAGE>
Patent GB-2001717-A (GB)
Title: A disc brake
IPC: F16D55/00
Filed: 1978-07-13
Abstract: A sliding caliper disc brake utilises a porous material such as sintered metal impregnated with a lubricating oil as one of the sliding surfaces. The material may constitute a key 3; an insert provided in the surface 3a of the key or its complementary surface 2c; or a bush for a guide pin. <IMAGE>
Patent GB-2029979-A (GB)
Title: Opto-mechanical scanning arrangements
IPC: H04N3/09
Filed: 1978-09-14
Abstract: An optical scanning apparatus comprises a deflectable corner-cube mirror (3) which is so disposed in the optical path of an imaging optical system that its deflection from a zero position effects a displacement of an image formed by said system; and which scans said image irrespective of the spectral content of the light which forms it. A complete system is described in which an infra red image is scanned onto a detection arrangement by the same optical components as project a visible raster to the eye. <IMAGE>
Patent GB-2030265-A (GB)
Title: A method of and apparatus for levitated suspension of machines
IPC: F16M7/00
Filed: 1978-09-22
Abstract: A method of and apparatus for levitated suspension for a metal forming machine during its working cycle, confines, with lateral clearance, the base 3 of the machine in a foundation cavity in a foundation 2 and creates a laterally confined cushion of fluid so as to act on the underside of the machine base 3 with sufficient force to cause the machine base 3 to float on the fluid cushion and controls the depth of the fluid cushion by allowing fluid to escape outwardly therefrom at a controlled rate. The fluid may incorporate a liquid constituent in order to achieve self- damping characteristics.   <IMAGE>
Patent GB-2009455-A (GB)
Title: Economy cruise system for an internal combustion engine
IPC: F02D41/14
Filed: 1978-10-13
Abstract: In a system for controlling the air/fuel ratio supplied to an engine in response to the oxygen content of the exhaust gases the ratio is automatically made leaner than stoichiometric, (by biasing an oxygen sensor) when a cruise condition is detected, (by differentiated at 30 the output of a speed sensor 28). A controller 12 determines the duty ratio of a fuel injector in response to a ramp signal produced by integrating at 14 the constant high or low output of a threshold comparator 16, and also in response to engine temperature and M.A.P. in an open loop manner. A "cruise detector" 32 produces a signal when the acceleration or deceleration is less than a prescribed value to bias the oxygen sensor and also to open a by-pass 26 to a catalytic converter 24. When a cruise signal is not present a switch 34 samples the detector 32 at intervals to determine whether it should be. <IMAGE>
Patent GB-2006865-A (GB)
Title: Moulding Paving Slabs
IPC: E01C19/50
Filed: 1978-10-23
Abstract: Paving slabs are cast in situ using temporary shuttering consisting of a flexible strip bent to the desired shape and with the ends secured together by a releasable fastener.
Patent GB-2007120-A (GB)
Title: Method of Producing a Superconducting Cable
IPC: H01B12/08
Filed: 1978-11-06
Abstract: A superconducting cable with filaments 4 embedded in a matrix 3 is produced from at least three individual conductors 2 which are held together by stranding together and/or by a metallurgical connection and which are reduced to at least a quarter of the original total cross-section by mechanical deformation, for example by drawing or rolling, and are then annealed. In an example, the filaments 4 comprise niobium or vanadium with a layer of tin, silicon, aluminium, germanium or gallium and at least partially form an intermetallic compound. The matrix metal is copper. The individual conductors are held together without any additional tube during the mechanical deformation. <IMAGE>
Patent GB-2012857-A (GB)
Title: Rod Guiding Clip
IPC: E05B65/20
Filed: 1978-11-30
Abstract: A rod or bar guiding member which can be fitted by hooking into an opening in a wall member, e.g. a vehicle door, comprising a base portion 10 for bearing against the wall member resilient hooking lugs 13, 16 having retaining projections which can be forcibly engaged into said opening and which expand therebehind, and a portion 17 for guiding the rod or bar, characterised in that the rod guide 17 is disposed on the same side as said resilient lugs 13, 16 with respect to the base portion 10 and projects beyond said resilient lugs so that a rod or bar disposed on an inaccessible side of said wall member can be gripped and located from the accessible side of the wall. <IMAGE>
Patent GB-2011796-A (GB)
Title: Grooved Filter Elements
IPC: B01D63/06
Filed: 1978-12-15
Abstract: A tubular filter element 9 is continuously cleaned during filtration by causing the incoming liquid (e.g. textile processing waste water or salt water for reverse osmosis separation) to pass along groove(s) 12 formed in the inlet surface of the filter element, the groove(s) extending axially, helically or tortuously and being closed in the radial direction either by a tube 8 or by similarly grooved, adjacent, filter elements. A plurality of such encased grooved filter elements are contained in a housing 1, unfiltered liquid with its entrained solids leaving through outlet 21 having a pressure controlling valve 24 and filtrate being withdrawn from outlets 22. The tubular element either acts directly as a filter element or as a support for a filter coating thereon, the element being of porous plastics, ceramic, graphite or sintered steel. The grooves are triangular, rounded or rectangular in cross-section and the tubular element may be hexagonal, triangular or square in cross section. <IMAGE>
Patent GB-2015206-A (GB)
Title: Electronic timepiece
IPC: G04G3/02
Filed: 1979-01-11
Abstract: An electronic timepiece having voltage regulation, temperature detection and battery voltage detection means provided on the same integrated circuit as is used for timekeeping circuitry, and having external terminals for stepwise weighted adjustment of timekeeping gain/loss.
Patent GB-2017294-A (GB)
Title: Bulk Radioactive Ore Sorter
IPC: B07C5/346
Filed: 1979-02-20
Abstract: This invention relates to a method of and apparatus for sorting mined ore which includes a radio-active component such as uranium. The apparatus consists of a belt conveyor 12 onto which the ore is fed in an even layer, at least one scintillation crystal detector 14 which is located below the conveyor belt and adapted to measure the radioactive emission of zones of ore on the belt, a weight sensor 20 a mechanical sorter 16 at the end of the conveyor for sorting the ore into grades having various emission levels and a computer having inputs connected to the scintillation detector and weight sensor and output connected to the sorter for operating the sorter when the measured zones of ore are discharged from the conveyor into the sorter. <IMAGE>
Patent GB-2021789-A (GB)
Title: Monitoring voltage using an electron beam probe
IPC: G01R19/00
Filed: 1979-05-24
Abstract: The secondary electrons released as a result of the primary electron beam from the electronic element (14) whose energy is dependent on the voltage are detected by a spectrometer (16) having at least one control electrode (24, 25). Control means incorporating a variable- gain amplifier (40), a lock-in amplifier (52) and modulation means (50) are associated with the spectrometer (16) and serve to control the voltage of the control electrode(s) (24, 25) in dependence on a value which is proportional to the integral of the energy distribution of the secondary electrons detected, such that, whatever the voltage at the measuring point, substantially only secondary electrons having energies which are not less than the maximum of the energy distribution of the secondary electrons released from the electronic element are detected. Thus deviation of the operating point caused by low energy secondary electrons not being able to escape from the electronic element at positive voltages is compensated for. <IMAGE>
Patent GB-2024603-A (GB)
Title: Fastener for clothing
IPC: A41F1/00
Filed: 1979-06-04
Abstract: A fastener suitable for example for clothing comprises a pair of identical components 10. Each component 10 is E-shaped with an elongate base portion 16 forming the central limb disposed between elongate side limbs 18 which lie in elevated and spaced lateral relationship with respect to the base 16 defining a pair of longitudinal slots 22 closed at their innermost ends by interconnecting cranked web or bridge portions 20. The base 10 carries securing prongs 28 and the components fit together to establish interlocking fastening engagement with the side limbs 18 and the base 16 of one sliding respectively under the side limbs and over the base of the other in face to face engagement until the closed ends of the slots 22 are brought into mutually abutting contact. A transverse ridge 26 across the outer end region 16b of the base 16 provides snap-engaging latching means for preventing inadvertent separation of the fastened components during use. <IMAGE>
Patent GB-2027487-A (GB)
Title: An operating mechanism for rotating a poppet valve of an internal combustion engine
IPC: F01L1/32
Filed: 1979-08-01
Abstract: The valve (1) is rotated about the valve stem axis in the same sense by increments, by means of a helical spring (10) which is free of the valve stem (6) during the opening stroke but grips the valve stem (6) firmly during the closing stroke of the poppet valve (1). The loosening and gripping action of the helical spring (10) is caused by its alternative compression and releasing between the valve thumb (8) of the rocker arm (7) and a cone piece (5). The helical spring (10) itself is turned to and fro around its axis by the relative motion (D) between the valve thumb (8) and the valve stem (6) as the valve reciprocates, which motion is transmitted to the spring (10) with the aid of a hook (11). <IMAGE>
Patent GB-2037216-A (GB)
Title: A method for obtaining a boxed refractory brick
IPC: B22D41/32
Filed: 1979-09-13
Abstract: A method of preparing a refractory brick boxed within a metal casing comprises forming a mixture of a granular refractory material (preferably a basic refractory material such as magnesite or a mixture of magnesite and chromite) and a chemical bonding agent (such as tar), pouring the mixture into a metal casing and pressing it therein, and then fairing and rectifying the surface of the refractory mix projecting over the edges of the metal casing. The cast brick obtained may then be tempered at a temperature of from 300 to 400 DEG C.
Patent GB-2030030-A (GB)
Title: Cathode ray tube apparatus
IPC: H04N9/28
Filed: 1979-09-20
Abstract: In a convergence circuit for a shadow-mask colour cathode ray tube the square of a horizontal deflecting signal ex and that of a vertical deflecting signal ey are multiplied by respective coefficients. An ellipse centreing the display surface is defined by aex<2> + bey<2> = ec where a,b,ec designate constants. The degree of convergence follows aex<2> + bey<2> = e1 inside of the ellipse while following aex<2> + bey<2> + K(aex<2> + bey<2>- ec) outside of the ellipse where K is a variable constant. By changing the K for each of the quadrants, the degree of convergence may be different between them.
Patent GB-2059920-A (GB)
Title: Moulded plastics trays
IPC: B65D1/40
Filed: 1979-10-08
Abstract: A tray has a base 2, in the upper face of which is provided a plurality of concentric ridges 5 between which are formed concentric primary drainage channels 7. Extending from the centre 6 of the base to each of the corners are secondary channels 8 which connect with the primary channels 7, and also with a storage channel 10 formed in the upper face of the base along the marginal edge thereof. Two distinct corrugated regions (3,23, Figure 7, not shown) be provided, each having separate systems of channels. The lower face of the base is correspondingly corrugated to facilitate drainage when the tray is inverted. <IMAGE>
Patent GB-2033875-A (GB)
Title: Folding box
IPC: B65D6/18
Filed: 1979-10-29
Abstract: A folding box 10, which may be a ballot box, comprises a base 11, lid 35 and four side walls 17, 18, 26, 27, one edge of the base 11 being hinged to sidewall 17, as is one edge of the lid 35, and the sidewalls 26 and 27 each comprising a pair of panels 28, 29 connected by hinges 30. The box 10 can be folded to a small volume when not in use to facilitate storage. <IMAGE>