baber/WOPTO huggingface dataset:
Patent GB-1432557-A (GB)
Title: Apparatus for cleaning a substantially -non-porous- surface such as a floor or wall
IPC: A47L11/30
Filed: 1973-08-28
Abstract: 1432557 Floor and road cleaning machine DYNACLEAN Ltd 20 Feb 1974 [20 Feb 1973 28 Aug 1973] 43522/72 and 14803/73 Heading A4F [Also in Divisions B3 and E1] Apparatus for cleaning a non-porous floor or road surface comprises a housing 1 divided into a compartment 2, containing a nozzle or nozzles 6 to be supplied with liquid under pressure, and a compartment 3 to be connected to a source of suction for drawing air through a restricted inlet or restricted inlets 12 and air and soiled liquid through a restricted passage or restricted passages 5 between the compartments 2, 3, the soiled liquid being entrained by air turbulence at the surface being cleaned. In the illustrated embodiment the passages 5, 12 are formed by notches in strips 5a, 12a engaging the surface being cleaned. A second embodiment comprises means for collecting and filtering the used liquid and recirculating it through the discharge nozzle or nozzles via a heating chamber 24, Fig. 3 (not shown). Other embodiments include a brush or an abrading tool, or means for including solid particles in the cleaning liquid to assist cleaning by abrasive action.
Patent GB-1030645-A (GB)
Title: Improvements in or relating to spinning rings
Inventor: FERRIER DUNCAN CAMERON
IPC: D01H7/60
Filed: 1964-04-10
Abstract: A spinning ring has one or more annular inserts consisting of a high molecular weight synthetic linear polymer and so positioned as to afford a bearing surface for the traveller.  The polymer may be polytetrafluorethylene, polyhexamethylene adiparicide, poly-epsilon-capolactam, polyoxymethylene, polyethylene terephthalate.  An insert may be disposed inside the ring, but does not extend to the top or bottom of it, and it may be lubricated by a wick.  The traveller may be of rectangular or "ear" shape.
Patent GB-695024-A (GB)
Title: Apparatus for the sterilisation and pasteurisation of liquids
IPC: A23L3/22
Filed: 1950-06-15
Abstract: 695,024. Sterilizing liquids. BRAUNSCHWEIGER GES. FUR ANGEWANDTE ELEKTRIZITAT. June 15, 1950 [June 16, 1949], No. 14933/50. Class 49. In apparatus for sterilizing liquids by passage of the liquid through a tube in contact with a heating element and there heating the liquid with a velocity of 70-100‹ C. per sec., the proportion of the surface of the heating element to the surface of the tube is greater than 3: 1. In the embodiment of Figs. 1 and 1a, a metal tube 34 of small bore in the form of a coil with widely spaced windings is welded or soldered in close heat contact with a metal tube 33 in which is an electric heater 31 insulated by ceramic material 32; a tube 37 for cooling, fluid may be soldered parallel with the tube 34. Specification 691,411 is referred to.
Patent GB-777720-A (GB)
Title: Work drivers for lathes and similar or suitable machine tools
Inventor: AKROYD MAURICE
IPC: B23B31/12
Filed: 1954-05-21
Abstract: 777,720. Drivers and carriers. PRATT & CO., Ltd., F. May 20, 1955 [May 21, 1954], No. 14936/54. Class 83 (3). A lathe &c. driver comprises at least two work-engaging cam levers or cam jaws 6 mounted on pivots 5 on a ring 3 floating in an annular housing 1 driven by the lathe, each jaw 6 having at least two slots, grooves or the like 7, 8, either of which may engage a driving peg 2 on the housing to vary the gripping diameter of the driver. The ring 3 is centred in the housing by at least one spring 11, attached at one end to the housing and at the other to the ring, and is retained in the housing by plates 15 projecting into a groove 16 in the ring. A cover 14, secured to the front of the pivots 5 by screws 17, may be rotated on the housing to rotate ring 3 and pivot the jaw 6 into an inoperative position in which they are retained by the engagement, in recesses in the periphery of the ring, of spring- pressed plungers 4. The amount of rotation is restricted by stops 20, 21 on the housing in the path of a pin 18 projecting from the ring 3. The jaws 6 may be roughened, as by serrations or teeth, and can be reversed on the pivots to drive in the opposite direction.
Patent GB-849852-A (GB)
Title: Improvements in or relating to synchronising circuits in television receivers
IPC: H04N5/12
Filed: 1958-05-10
Abstract: 849,852. Automatic phase control systems. COLE Ltd., E. K., and GALPIN, G. S. May 8, 1959 [May 10, 1958], No. 15054/58. Class 40(5). In a television receiver "flywheel" sync system phase comparison pulses are derived by differentiating negative-going pulses obtained from the line time base output transformer during line flyback periods. To this end a centre tap D of that part BA of the auto-transformer feeding the line scan coils LSC is connected to HT+ through a blocking and boost-volts reservoir capacitor C1 and the differentiating circuit C3, R2 fed from a point B going negative by about 1000 volts during flyback. V2 is an efficiency diode. The time lag between the operative positive slope portion of the above comparison pulse at B to be differentiated and line flyback start, causing loss of the start of the television picture, may be counteracted by delaying the incoming line sync pulses, and hence line flyback, as by increasing the capacity in the anode circuit of the sync separator valve. Alternatively the pulses at B may be obtained from a separate winding of the transformer.
Patent GB-1030583-A (GB)
Title: Improvements in and relating to a switching circuit for an electrically heated blanket
IPC: G05B5/01
Filed: 1965-04-09
Abstract: 1,030,583. Automatic temperature control of electric blankets. VAN DER HEEN N.V. April 9, 1965 [May 6, 1964], No. 15157/65. Heading G3R. An electric blanket control system includes one or more negative temperature coefficient resistor (a) for sensing the blanket temperature, the system being arranged so that the blanket heater is disconnected should the connections to the negative temperature coefficient resistor (s) become interrupted. An electric blanket comprises a heater 1, the supply of energy to which is controlled by the normally open contacts of a relay 2, the operating coil of which is shunted by a capacitor 7 and is connected in the anode circuit of a discharge valve 8. A D.C. supply is obtained from the A.C. supply 3 by elements 4, 5, 6 across which supply are connected two potentiometers; one comprising a resistor 10 and the negative temperature coefficient resistor 11 which senses the blanket temperature and the other including two resistors 13, 14 and a potentiometer 12. The first control electrode of the valve 8 is connected to the junction of resistors 10, 11 and to the cathode of the valve by a grid leak resistor 9 whilst the second control electrode is connected to the slider of the potentiometer 12, by means of which the blanket temperature can be set. Alternatively either resistor 10, 13, 14 may be made adjustable for this purpose. Thus should the sensing resistor 11 become opencircuited the first control electrode of the valve 8 is biased negative thus disabling the valve 8 to de-energize relay 2 and the heater 1.
Patent GB-183975-A (GB)
Title: A new or improved device for attaching or removing the outer cover of a pneumatic tyre
IPC: B60C25/02
Filed: 1921-06-01
Abstract: 183,975. Osborne, R. S. June 1, 1921. Tyre covers, tools for removing and replacing. -A yoke 3 has a rim-engaging groove 4 at one end, and a screw 6, carrying a pivoted head 8, threaded through the other end. In the position shown the groove 9 is adapted to receive the rim flange over which the edge of the cover is forced by the curved lug 10 as the device is moved around the rim. For detaching the tyre, the head 8 is turned to bring the bracket-end 11 into a position where it can be engaged under the edge of the cover.
Patent GB-210349-A (GB)
Title: Improvements relating to the propulsion of ships
IPC: B63H11/00
Filed: 1923-06-11
Abstract: 210,349. Paquay, E. June 11, 1923. Propelling, steering, and manoeuvring by water jets ; submarine vessels, special apparatus for steering.-A propelling and manoeuvring device for ships comprises a truncated cone 2 eccentrically mounted on a shaft 3 in a casing 5. The shaft is supported on a spherical bearing 20 and by a shoulder 7 which moves in a guide 8. The cone is rotated by an arm 11 fixed on the shaft. On rotation, the cone forces water against the inclined surface of the casing which deflects the water rearwardlv in the direction of the arrow 22. Two propelling devices may be provided, one on each side of the centre line of the ship and may be driven in common by a cross shaft actuated from a central shaft. When fitted to submarines, the hollow spaces of the cone may be filled wth water or may be emptied to facilitate submersion and emersion. Instead of the cone being circular in section, it may be made elliptical.
Patent GB-123713-A (GB)
Title: Improvements in or relating to Tractor Wheels.
Inventor: EMILE FEUILLETTE
IPC: B60B15/06
Filed: 1918-09-19
Abstract: 123,713. Feuillette, E. March 1, 1918, [Convention date]. Portable-track wheels .-Connected pairs of tread-grips a, b, arranged at one or both sides of a tractor wheel rim, are mounted on pins e to admit of being turned into the operative or inoperative positions shown in Figs. 1, 2, and 5 respectively. The pins e, or the bosses on the connecting-plates c, are provided with cams i having flats i<1>, i<2> on which plate springs j are adapted to bear. In a modification, the plate springs are replaced by radially-arranged helical springs.
Patent GB-312492-A (GB)
Title: Improvements relating to methods of and moulds for moulding plastic or powdered materials
IPC: B28B7/18
Filed: 1928-05-24
Abstract: 312,492. Walker, C. S. G., and Cook, W. G. May 24, 1928. Moulds.-A mould, specially adapted for ma.king concrete posts of the kind described in Specifications 304,422, [Class 45, Fencing &c.], comprises a separate pallet 1, preferably iron-bound as shown at 2, two side plates 3, and core plates 9. The side plates are steadied by being formed integral with channelled base members 4, located outside the moulding space, and one of them is furnished with adjustable swinging links 13 which pass into slots 15 on the other plate and are slotted to receive cotter pins 14 by means of which the sides are assembled to abut against and grip the pallet 1. End plates 12, inserted by hand to abut against the brackets 11, complete the mould frame. The core plates 9 stand on the feet 10, and the core members 7, 8 pass through the L-shaped slots 5, 6 in the side plates. Sliding bolts 21 are moved to engage slots in the core plates and thus lock them to the side plates. After moulding, the core plates are unlocked and withdrawn by a movement perpendicular to the plane of the sides, then the mould frame is dismantled, leaving the moulded block supported on the pallet for hardening. The use of the mould for making posts with slots on one side only or for moulding corner posts with slots on two adjacent sides, also is described.
Patent GB-373410-A (GB)
Title: Improvements in aircraft wings fitted with engine cooling devices
IPC: B64D33/10
Filed: 1931-05-23
Abstract: 373,410. Engine cooling means in aircraft wings. GLOSTER AIRCRAFT CO., Ltd. and DUNCANSON, F., Gloster Works & Aerodrome, Hucclecote, Gloucestershire. May 23, 1931, - No. 15286. [Class 4.] In an evaporative cooling system for aircraft engines the condenser is disposed in a streamlined gap extending from the upper to the lower surface of the wing along a portion of its length between independently formed fore-and-aft aerofoil sections. The system is shown in Fig. 1 with the condenser 8 arranged in a gap between aerofoils 17, 18 forming part of the wing centre section and each serving to fair a wing spar. The centre section is of thin section and is disposed in the line of vision from the cockpits. The cooling system comprises a pump 6, a steam separator tank 7, the condenser 8, and a hot well tank 9. Water condensed in tank 7 returns to the pump through pipe 11 and the steam passes to the condenser through, pipe 12 entering the condenser 8 by a header 20. The condensate is drained from a receiving channel 21 by pipe 13 to hotwell 9. Water from the hotwell 9 is pumped back to the separator tank 7 through pipes 15, 16. A vent is fitted at 14.The condenser is built up; from spaced flattened tubes 19 arranged to fill the gap in the wing as shown. The tubes are connected to the header 20 and receiving channel 21 at front and rear respectively. An auxiliary radiator 22 of the two-skin type may be fitted on the leading edge, the skins may be corrugated as shown at 23 in Fig. 1 or Fig. 3. This condenser communicates with condenser 8 through the pipe 26 in which is a double-acting relief valve 25 which permits steam to escape from condenser 8 if the pressure is high and allows air to enter it if the pressure drops below atmospheric. Condensate from condenser 22 is returned through pipe 27, which is heated by proximity to pipe 12, to the hotwell tank 9. A streamline pipe 28 connects the lowest point of condenser 8 to pipe 27 serving as a drain when the wings are at a low angle of incidence. Pipe 28 communicates with each tube 19 by a very small hole but a restriction washer is also placed at 29 to prevent a large volume of steam from blowing to the hot well tank 9. A similar washer may be arranged in pipe 13. Specification 313,150 is referred to.
Patent GB-312317-A (GB)
Title: Improvements in or relating to rotary compression refrigerating machines
IPC: F25B3/00
Filed: 1929-05-16
Abstract: 312,317. Brown, Boveri, et Cie, Akt.- Ges. May 24, 1928, [Convention date]. Refrigerating. compression machines for. - The rotary condenser and/or evaporator of a compression machine are formed with radial heat exchange passages through which the refrigerant and the cooling medium, e.g. air, flow under the action of centrifugal force. The machine may comprise a condenser 3, containing an oscillating compressor 4, and an evaporator 8 both of which are secured to a rotary shaft, the refrigerant vapour, e.g. sulphur dioxide, being drawn into the compressor from the evaporator through ports 9, 11 in the hollow portion of the shaft and discharged through ports 12, 13 into the condenser and thence passing by centrifugal force through the control apertures in the discs 21 and between the tubes 18 through which cooling air passes by centrifugal force to the periphery of the condenser from which the liquid refrigerant flows through a tube 14 to the evaporator. The condenser, which may be provided with projections or segmental ribs to facilitate transfer of heat, is disposed in a rotary casing having air inlet and outlet openings 81, 82 respectively. The evaporator, which rotates in a liquid container 16, is provided with tubes 24 disposed between the end of the housing and a disc 25 and air or liquid to be cooled and the refrigerant flow through the tubes and the spaces between them by centrifugal force. In a modification the condenser is provided with air tubes 27, Fig. 4, of rectangular cross section. In another arrangement, the compressed refrigerant vapour flows through aircooled tubes 35, Fig. 5, disposed outside the condenser. In a further modification, the vapour flows through spirally wound tubes disposed in air passages formed on the outside of the end walls of the condenser. Fig. 8 shows a construction in which the compressed vapour flows through the annular space 53 between pairs of corrugated plates and the air through the spaces 56 between the pairs of plates. In a further arrangement, the vapour flows through hollow spiral ribs 60, Figs. 9, 10, formed in the end walls of the condenser and the air through axially arranged spiral passages formed between the ribs on the outside of the walls.
Patent GB-872356-A (GB)
Title: Improvements in or relating to the formation of subterranean cavities
IPC: E21B43/28
Filed: 1960-05-02
Abstract: 872,356. Hydraulic mining. CONTINENTAL OIL CO. May 2, 1960 [May 7, 1959], No. 15367/60. Class 68(1). A method of forming a long but relatively small diameter cavity in a salt bed, the cavity being of a shape particularly suitable for holding atomic waste. The method involves the sinking of inlet and outlet conduits 11, 12A down into the salt bed and introducing fresh water into the bed through the inlet conduit and removing the brine so formed up the outlet conduit. This brine is recirculated, being passed down the inlet conduit together with further fresh water. This process is continued until sufficient fresh water has been passed into the bed to, on becoming a fully saturated brine, have formed a cavity of the chosen diameter. The conduits are then raised until they clear the saturated brine and a further cavity is formed in the same manner as the first cavity was formed. These processes can be repeated to form further cavities as desired. When sufficient interconnected, brine-filled cavities have been formed the brine is removed therefrom to leave a cavity of the required shape for the stowage of the waste.
Patent GB-787917-A (GB)
Title: Improvements in or relating to electric rectangular-wave generator circuits, relaxation oscillator circuits, and monostable circuits
Inventor: WOLFENDALE ERIC
IPC: H03K3/281
Filed: 1955-05-27
Abstract: 787,917. Transistor generating and single stable state circuits. MULLARD RADIO VALVE CO., Ltd. May 30, 1956 [May 27, 1955], No. 15371/55. Class 40 (6). In a circuit comprising a first transistor T1 having an alpha less than unity, D.C. conducting impedances Re, Rc are connected in the emitter and collector leads with a regenerative feed-back loop providing a D.C. path between the collector and the base of a second transistor T2, a D.C. conductive coupling being provided between the two emitters. The base of transistor T1 is coupled over a capacitor Cb to a fixed potential point and over a resistor Rb1 to a point of constant potential or to one which is constant during the triggered period. With transistor T1 fully conducting, the collector potential approaches that of the emitter so that the potential across the emitter-base of transistor T2 is such as to maintain it near cut-off. The potential-Eb is chosen sufficiently negative that the transistor T1 is fully conducting and a positive pulse applied at the base b1 or a negative pulse at point c1, e1 triggers the circuit to its opposite state. Assuming a negative potential applied at collector c1, the base of transistor T2 is driven sufficiently negative for it to pass current so that the potentials of the emitters e2, e1 fall and the transistor T1 is driven to cut-off, since the base is held temporarily at constant potential due to capacitor Cb. The capacitor Cb commences to discharge over resistor Rb1 and continues until the base potential of transistor T1 is lowered sufficiently for it to conduct again, whereupon the regenerative loop is effective to restore the circuit to its normal state. In order to avoid the effect of hole storage, the collector c1 may be connected through a rectifier to an intermediate potential. The resistor Rb1 may be returned to the emitter e2 which assumes a potential near the supply when transistor T2 is conducting, and such a circuit is useful for producing short pulses. By suitable choice or resistors Rc, Rb1 it may be arranged that transistor T1 is-not saturated when in the conducting state so that the circuit has no stable state and is selfoscillatory. If the potential-Eb is raised sufficiently, transistor T1 cuts off and transistor T2 is in the conducting state in the normal condition. The circuit may be triggered by pulses of the opposite polarity from the former case, applied in the regenerative loop. The capacitor Ce may be employed to enhance the feed-back action. A resistor may be inserted between the collector or transistor T1 and the base of transistor T2. Specification 767,727 is referred to.
Patent GB-1224596-A (GB)
Title: A method of improving the lubrication of continuous castings
IPC: C10M169/00
Filed: 1969-03-24
Abstract: 1,224,596. Continuous casting. CONCAST A.G. 24 March, 1969 [25 March, 1968], No. 15384/69. Heading B3F. [Also in Division C5] Moulds for the continuous casting of metals are lubricated by a lubricant which consists of at least two organic components, one of which is an additive present in a minor amount and which raises the proportion of carbon containing constituents in the residue formed by pyrolytic decomposition and is soluble in or forms a homogenous mixture with the principal component or components. Lubricants for casting steel consist of rape oil as the principal component and contain either 0À1-5 wt. per cent of lead or cobalt naphthenate or 1-10 wt per cent of bitumen dissolved in dioctyl phthalate. Dibutyl phthalate or colza oil can be used as principal components.
Patent GB-281552-A (GB)
Title: Improvements in or relating to flicker-producing devices for electric fires and other electrically illuminated appliances
IPC: F21V9/40
Filed: 1927-06-09
Abstract: 281,552. Berry, H. H. June 9, 1927. Imitation fires.-A flicker-producing fan or spinner for use over an electric lamp in imitation fires and other appliances is provided with means attached either to the lamp or lamp-holder which retain it in position when the apparatus is inverted. A number of constructions are described, that shown in Fig. 1 comprising a two-armed bracket 4 supported on a foot 2 secured to the lamp-holder 1. The lower arm of the bracket resiliently engages the. top of the lamp and carries the pivot pin 5 for the spinner, which is prevented from coming away from the pin by the overhanging part 6 of the upper arm. In the form shown in Fig. 2 a resilient support 7 is attached by springs 8 to the lamp-holder 9, and the spinner 13 is retained in place by a bent portion 11 the pivot pin, which lies within a cup or guard 12 on the underside of the spinner. A disc on the pivot pin may replace the bend 11. In modifications the springs 8 are omitted and the resilient support 7 is formed so as to grip the lamp, or is provided at one end with a clamp secured around the lamp collar. Fig. 3 shows a further form in which an inner bridge-piece 16 carrying the fan pivot is pivoted on the inturned ends 17 of an outer bridge-piece 18 which retains the fan. The ends 17 are carried in vertical slots in supports 21, and springs 20 draw them downwardly to retain the parts in position. Both of the bridgepieces may be turned to one side to permit removal of the fan and lamp. The cup bearing may be filled with wax to hold the fan during transport, the wax being melted by the heat of the lamp. Specification 129,607 is referred to.
Patent GB-1517902-A (GB)
Title: Piezo-resistive device for the electrical read-out of an optical image
IPC: H01L27/14
Filed: 1977-04-13
Abstract: 1517902 Piezo-resistive devices for reading optical images THOMSON-CSF 13 April 1977 [16 April 1976] 15415/77 Heading H3U An electro-acoustic device for the electrical read out of an optical image comprises a piezo-resistive and photoconductive substrate 1, on the surface of which are provided an electro-acoustic transducer 2 and a plurality of elementary detectors arranged in rows and at which the optical image L is directed; the elementary detectors each furnish an electrical signal representing the local conductivity of the substrate due to the combined effect of an acoustic wave emitted by transducer 2 (through the piezo-resistive effect) and the optical image L (through the photoconductive effect). As shown, each elementary detector is constituted by an interdigital finger pair, across which a potential V is applied; the detectors may alternatively be constituted by PN junctions, or MOS or MIS transistors. The elementary detectors of a row are successively scanned by an acoustic pulse from transducer 2, and then switching is effected to the next row, e.g. by output circuit 3.