baber/WOPTO huggingface dataset:
Patent GB-1210536-A (GB)
Title: A combined floor treating and liquid pick-up appliance
IPC: A47L11/30
Filed: 1967-11-14
Abstract: 1,210,536. Cleaning apparatus. HOOVER Ltd. 14 Nov., 1967 [15 Nov., 1966], No. 51856/67. Heading A4F. [Also in Division F2] A combined floor cleaning and liquid pick-up appliance comprises a reversible electric motor 47 arranged to drive a suction fan 62 which communicates with a nozzle 70 for drawing up liquid from a floor, a rotary tool 45 arranged to be driven by a transmission from the electric motor 47 and arranged to be automatically raised and lowered relative to the floor in dependence on the direction of rotation of the motor 47, whereby in one direction of rotation the tool 45 bears on the floor and the nozzle 70 is raised therefrom whereas in the other direction of rotation the tool 45 is moved to a raised position to permit nozzle 70 to contact the floor. As shown, a vertical shaft 11 having a lower threaded portion 12 is drivably connected to the motor 47 and a carrier 13 which is threaded on the portion 12 is drivingly connectable to the tool 45 via a coupling 18 releasably attached thereto. The tool 45 which may be a brush having bristles extending from an annular backing 25 is provided in the region of a central recess (24) (Fig. 3, not shown) with projections (43), (44) which engage with driving recesses (38, 39) (Fig. 6, not shown) in the carrier 13 only when the shaft 11 is driven in the direction to cause the carrier 13, the coupling 18 connected thereto, and hence the brush 45 to move to the lowered position where the brush 45 engages the floor, rotation of the shaft 11 in the other direction being arranged to raise the carrier upwardly to lift the brush away from the floor but to cause relative axial movement between the coupling 18 and the carrier 13 whereby the projections (43, 44) on the brush are drivingly disengaged from the recesses (38, 39) on the carrier 13. Washers 26, 37 limit axial movement of the carrier 13 on the shaft 11 and an inertia plate 27 may be fixed to the carrier 13 to ensure that it rotates with the shaft 11 only when it abuts one of the two washers 26, 27. Stops, however, are provided to maintain the brush stationary when in its raised position. In an alternative arrangement, the brush (79) (Fig. 12, not shown) is attached by springs (80) to a carrier (76) which is mounted on a cylindrical brush (75) threaded on to the lower portion (74) of the shaft (72), co-operating stops on the brush, the shaft and a body member of the appliance being arranged to prevent rotation of the brush (i) in its raised position relative to the body member and (ii) in its lowered position relative to the shaft. In a further alternative arrangement (Fig. 13, not shown) the shaft to which the brush is drivingly connectable by a carrier-coupling arrangement is driven axially within a brush to a raised or lowered position according to its direction of rotation. The shafts of the different arrangements may be provided with double threads and parts of the appliance may be of plastics material. The appliance may be provided with two shafts connected suitably through gearing to the electric motor.
Patent GB-1152511-A (GB)
Title: Improvements in or relating to Fluid Heating Furnaces
Inventor: BEGGS HAROLD LEROY
IPC: C10G9/20
Filed: 1965-12-07
Abstract: 1,152,511. Liquid heating furnaces. ALCORN COMBUSTION CO.. 7 Dec., 1965, No.51933/65. Headings F4A and F4B. Main burners 17 are mounted on platforms   12 between vertical banks 11 of horizontal tubes carrying liquid to be heated. The lower tubes 27 of the banks are of larger diameter and are located below the level of the main burners 17. Auxiliary burners 18 may be arranged in the troughs between platforms 12. A convection section 21 bf tubes arranged transversely to the tubes of banks 11 is arranged in the outlet to the flue 22. A single row of raised burners may be arranged in the mid line of a tube lined chamber, the auxiliary burners being arranged between the burner platform and the chamber wall.
Patent GB-522396-A (GB)
Abstract: 522,396. Seed disinfectants. BOLIDENS GRUVAKTIEBOLAG. Dec. 7, 1938, No. 35729. Convention date, Dec. 18, 1937. [Class 81 (i)] A mixture of mercuric ethyl chloride and mercuric methyl iodide is used as a fungicide for dressing seeds. For dry treatment a filler such as quartz sand or talc is added. Other substances (unspecified) may be added to increase the fungicidal effect or to stimulate germination. Specification 323,813, [Class 81 (i)], is referred to.
Patent GB-1317354-A (GB)
Title: Multi-way valve
IPC: F15C3/06
Filed: 1971-11-11
Abstract: 1317354 Valves ROBERT BOSCH GmbH 11 Nov 1971 [13 Jan 1971] 52405/71 Heading F2V [Also in Division G4] A two-position valve for logic switching applications has an annular closure member 18 slidable in an opening 6 of a centre plate sandwiched between a port plate (4) and an unported cover plate (2). When control pressure is applied to port 7 via port 13 in the port plate, the closure member moves to the position shown where its exterior peripheral surface closes passage 11 in the central plate, thereby disconnecting work port 15 in the port plate from supply port 16, the work port instead communicating via recess 17 in the port plate with relief port 14. Upon removing control pressure from port 7, the supply pressure at 11 shifts the closure member leftwards so that control edge 20 disconnects the work port from the relief port, the work port instead communicating with the supply port.
Patent GB-1205039-A (GB)
Title: Improvements in the application of tiles to walls and like surfaces
Inventor: COLLINS GORDON
IPC: E04F13/08
Filed: 1968-11-18
Abstract: 1,205,039. Wall facing units. PILKING- TON'S TILES Ltd. 18 Nov., 1968 [18 Nov., 1967], No. 52541/67. Addition to 1,094,144. Heading E1B. A tile unit A comprises tiles a secured together by peelable cardboard strips B applied to the glazed surface to assist in securing to a wall. The strips B may be replaced by a peelable cardboard sheet of slightly smaller dimensions than the unit.
Patent GB-1074120-A (GB)
Title: Improvements in or relating to excavators
Inventor: KELLY ALEC JAMES
IPC: E02F3/42
Filed: 1964-12-31
Abstract: 1,074,120. Excavator dipper arms. J. C. BAMFORD (EXCAVATORS) Ltd. Dec. 16, 1965 [Dec. 31, 1964], No. 52987/64. Heading E1F. The two parts of a telescopic dipper stick of a shovel excavator are locked together after adjustment to provide a dipper stick of a desired length by two pins inserted in aligned openings of the two series of openings formed along the length of each part.
Patent GB-1156568-A (GB)
Title: High-speed overload circuit
IPC: H02H9/00
Filed: 1966-11-28
Abstract: 1,156,568. Protective arrangements. GENERAL ELECTRIC CO. 28 Nov., 1966 [10 May, 1966], No. 53198/66. Heading H2K. An overload protective arrangement e.g. for a radar modulator 20 supplied from a threephase supply ABC through a rectifier bridge CR 1  . . . CR 6 , comprises saturable transformers T 1 , T 2  having their primary windings connected in series with the load 20 and their secondary windings connected in series with a bias source. A signal integrator, e.g. a capacitor C 9 , is responsive to the signals induced in the secondary windings when the load current exceeds a level determined by the bias current and controls a switching signal generator, e.g. a silicon controlled rectifier Q,. A threshold device, e.g. a Zener diode D 1  is interposed between the integrator and switching signal generator to prevent response to spurious "noise" signals. The bias current may be provided through a transistor Q 8  which presents a high impedance to the secondary circuit and permits the arrangement to respond to the ripple current under moderate overload conditions as well as to the impulses produced by rapidly increasing overloads. When the rectifier Q 7  is triggered, it turns off a unijunction transistor oscillator 70 so that the drive is removed from controlled rectifiers Q 1 , Q 3  which are in series with the load 20. At the same time a transformer T 4  in series with the rectifier Q 7  drives controlled rectifiers Q 2 , Q 4  into conduction so that charged capacitors C 1 , C 2  back bias the rectifiers Q 1 , Q 3  to produce a rapid turn-off. The rectifiers Q 2 , Q 4  are subsequently turned-off and the load remains off until Q 7  is reset and oscillator 70 turns on again.
Patent GB-1362036-A (GB)
Title: Variable delay lines for very high frequency operation
IPC: H03H9/42
Filed: 1971-11-16
Abstract: 1362036 Delay lines THOMSON-CSF 16 Nov 1971 [17 Nov 1970] 53240/71 Heading H3O [Also in Division H1] A variable delay line comprises a piezoelectric crystal 5, Fig. 2, in which mechanical waves are produced by an input signal, electrodes 4 and 10 on either side of the crystal to form an output transmission line, and an electron beam 9 deflectable along the surface of the crystal to tap off an output after the required delay. The crystal may be of quartz covered on its impacted surface by a secondaryemissive material such as magnesium fluoride, and provided at one end with input electrodes 7 for producing the mechanical waves and at the other end with absorbing material 6 such as polycrystalline titanium ceramic for preventing reflection. The central portion of electrode 10 through which the beam passes may be in the form of a grid comprising wires 11 parallel to the direction of propagation of the waves in the crystal; the electrode may be spaced a short distance from the crystal or may be in contact with it but insulated from its ends. In operation electrode 10 is maintained at a potential such that the crystal surface has an effective secondary emission ratio of one. The other output electrode 4 is a plate of conductive material attached to the lower surface of the crystal, and the external load 24 is connected between the two electrodes 4 and 10.
Patent GB-1144818-A (GB)
Title: Improvements in or relating to winches
Inventor: PURDY WILLIAM CHARLES
IPC: H02G1/08
Filed: 1966-11-30
Abstract: 1,144,818. Winches. THOMPSON BROS. (ENG.) [Ltd. 30 Nov., 1966, No. 53684/66. Heading B8B. [Also in Division H2] A winch mounted on a trailer 1 for drawing a cable connected to a rope 8 along a trench, comprises two parallel wheels 11, each having a plurality of spaced circular grooves in planes normal to the axis, and a reeling drum 17 adapted to take up the rope 8 passing from the wheels 11; the drum 17 being driven from the wheels 11 via a V-belt which slips at a predetermined tension thereof. The rope 8 passing from the trench moves around a guide pulley 7 and a pulley 10 prior to engaging the wheels 11. The pulley 10 is mounted on a bell crank 9 which is coupled via link 12 to a load cell 13 having a suitable load dial. The two wheels 11 form an elongated winding drum for the rope 8 from which the latter passes to the reeling drum 17 via a pulley 15 mounted on a laterally swingable guide arm 16 which aids the-laying of the rope on to the drum 17. The wheels 11 are driven from an internalcombustion engine through a clutch, reversable gearing, an overload coupling and a reduction gear. The reeling drum 17 is driven by the V-belt from a pulley 28 coupled to the reduction gear-shaft via a one way clutch effecting a drive in the reeling-in direction. The V-belt is tensioned by a weighted or spring loaded jockey pulley. The drum 17 is connected through a further one way clutch to a brake to provide resistance when the rope is being payed out.
Patent GB-1254900-A (GB)
Title: Ratioless memory circuit using conditionally switched capacitor
Inventor: BOOHER ROBERT KENNETH
IPC: H03K19/096
Filed: 1969-11-05
Abstract: 1,254,900. Semi-conductor memory circuits. NORTH AMERICAN ROCKWELL CORP. 5 Nov., 1969 [7 March, 1969], No. 54296/69. Heading H3T. A capacitor 2 forming part of a periodic read-write memory circuit has one plate 3 formed on and insulated from a semi-conductor substrate normally constituting an earthed second plate and containing a region of opposite conductivity type forming the input electrode 7, which can be effectively connected to constitute the second plate 6 of the capacitor by formation of an inversion layer between plate 3 and the input electrode 7 when a logic signal applied to the first plate 3 is sufficiently negative, thereby "forming" the capacitor 2 between electrodes 3 and 7. This is described in Specification 1,254,899. When the capacitance 6 is storing a negative level, it turns on a F.E.T. 5 forming part of device 30, so that a negative read pulse at 7 will pass through F.E.T. 5. Provided a read F.E.T. 11 is also conductive the stored potential will appear at 14. A write F.E.T. 16 feeds the input logic signal from the line 14 to the capacitive device 30, the line 14 being addressed appropriately for read and write operations by an address circuit (50, Fig. 6, not shown). In a modification of Fig. 1, the read F.E.T. 11 has its gate connected to the eapacitive device (35, Fig. 2, not shown) and its signal path connected to the read terminal 7. Sine or square wave clock pulses may be used. If zero potential is stored then the capacitor 2 has its plate 6 effectively earthed and F.E.T. 5 can therefore not conduct a read pulse from 7.
Patent GB-548944-A (GB)
Abstract: 548,944. Calculating appliances. RICHARDS. E. C. Feb. 24, 1941, No. 2459. [Class 106 (i)] A calculating appliance comprises a sliding scale, grid or grating carrying a vertical indicator representing the position of decimal points, which is adjustable over a mount or support for a table printed, typed or otherwise applied to a roll of paper or the like, said table consisting of nine horizontal rows of figures representing the quotients from one to nine of a constant factor and means for feeding the roll of paper past a window in the casing. As shown, operation of handwheels 5, 6 at the end of a cylindrical casing winds a reel of paper from one roller to another past a window 9, the handwheels being adjusted so that the whole of the desired table is shown. A pointer 11 marked with decimal points is positioned across the table according to the power of ten required. The device may be combined with an adding device 17 to assist in ascertaining the total. At the extreme right of the casing a table A sets out the pence decimal equivalents of a shilling to assist the conversion of the total shown on the adding device. In a modification, Fig. 3, a slide 12 marked with zeros and a decimal point is connected to the indicator 11 to show the power of ten of the multiplier.
Patent GB-1175360-A (GB)
Title: Heat Convertible Moulding Compositions based on Aromatic Glycidyl Ethers
IPC: C08G59/24
Filed: 1967-01-09
Abstract: 1,175,360. Epoxy resins. BECK KOLLER & CO. (ENGLAND) Ltd. 9 Jan., 1967 [2 April, 1966], No. 55157/66. Heading C3B. A heat hardenable moulding composition comprises one or more diglycidyl ethers of general formula in which n = 0 or an integer from 1 to 20. R 3  represents : CH 2 , C(CH 3 ) 2  or R 1  and R 2  may be the same or different and are straight or branched C 1-9  alkyl radicals, e.g. methyl, ethyl, n- or iso-propyl, sec- or tertbutyl, n- or iso-amyl, n- or iso-octyl or n- or iso-nonyl radicals together with hardeners, e.g. acid anhydrides, and/or aromatic polyamines and/or BF 3  complexes. Conventional fillers and/or hardening accelerators may also be present.
Patent GB-1203806-A (GB)
Title: Stepping motor control system
IPC: G05D3/18
Filed: 1967-12-05
Abstract: 1,203,806. Electric motors. INTERNATIONAL BUSINESS MACHINES CORP. 5 Dec., 1967 [30 Dec., 1966], No. 55257/67. Heading H2A. A stepping motor has stator windings which can either be energized singly or in pairs and has the pattern of energization dependent on rotor position. Normal acceleration is obtained by energizing windings corresponding to a position 1¢ steps from the sensed rotor position and initial deceleration is obtained by energizing windings corresponding to a single step in advance of the sensed position and subsequently energizing the winding corresponding to the required position. Preferably the detector, which is similar to that shown in Specification 1,105,598, senses only positions corresponding to each winding so that pairs of windings are energized for acceleration and single windings for deceleration. For high-speed operation windings 2¢ steps from the sensed position are energized. Generally the stopping motor has a similar control system to that shown in Specification 1,105,598 with the addition of a last step memory stage 2 which feeds translator 3 with signals indicative of the current rotor position. The memory stage includes two sets of bistable circuits in series which are reset each time a photo-cell in the position indicator is illuminated. The output can be inhibited by removing the signal from line 25, Fig. 2 (not shown). The processor 1 sets the required movement by energizing the correct lines 16-19 and assuming the rotor is currently at position 5.4‹ in Fig. 8 for clockwise acceleration windings B2, A2 are energized, i.e. 1¢ steps in advance of sensed position. If high-speed operation is required then after a predetermined speed, 1000 steps/sec., has been reached energization changes to windings A2, B1. If deceleration is now required, the sensed position being 5.4‹ and the actual position 9.9‹, winding B2 is energized to give a retarding torque and when the motor speed drops below a further predetermined speed of 600 steps/see the winding corresponding to the required rest position is energized. For single-step operation the minor loop is opened by de-energizing line 25 and the directional command applied to the translator so that the motor accelerates until a stop signal is briefly applied to the translator so that the motor decelerates until it stops and the last step memory is then updated by energizing line 25 again. The time of applying the various signals is determined by samplers 14, 15 which include time delay circuits, Fig. 5 (not shown). Either single windings or pairs of windings may be energized in single-step operation.
Patent GB-1376259-A (GB)
Title: Cut off wheels
IPC: B24D3/00
Filed: 1972-11-30
Abstract: 1376259 Abrasive wheels and grains NORTON CO 30 Nov 1972 [2 Dec 1971] 55381/72 Heading C4V  A cut-off wheel of abrasive grains is bonded by an infusible resin bond, at least 25% by weight of the abrasive content being a fused alumina-zirconia abrasive having a zirconia content of between 10 and 60% by weight, an average primary alpha-alumina crystal diameter less than 40 microns, and an elongated shape such that its bulk density in the 24 grit size range is in the range of 115 Î s.g./4À35 to 135 x s.g./4.35 lbs. per cubic foot, s.g. being the specific gravity of the abrasive grit material. Best results are achieved when 100% of the abrasive absorb the alumina-zirconia type, but up to 75% by the abrasive may be replaced by block issued fused alumina. The preferred abrasive of the invention contains 20 to 50% by weight zirconia. The bond is preferably a phenol-aldehyde thermoset bond with high bond content and high abrasive content, the abrasive ranging from 40 to 56% by volume and the bond 22 to 50% by volume, any remainder being pores.
Patent GB-1124367-A (GB)
Title: Improvements in or relating to sliding sash window construction
IPC: E06B3/46
Filed: 1965-12-31
Abstract: 1,124,367. Sliding windows. H. SHAPIRA. 31 Dec., 1965; No. 55399/65. Heading E1J. The sashes of a sliding sash window are provided with grooves 12, Fig. 11 which engage over the limbs 7 Fig. 6, of a U-shaped lower rail of the main frame which is provided, above the base 6 with a roof or platform 5, the upper rail and stiles being of similar formation so that angle connectors 10 may be introduced into the cavity 11 for connecting the corner members together to be held by screws &c. passed into the slit tubular portions 9. The sash members are connected together at the corners by angle members 15 which are accommodated in enlargements 12a of the grooves 12 in each of the stiles and trails of the sash and secured by pins or rivets 16. The lower rail is provided with plastic inserts accommodated in the enlargement 12a to avoid metal to metal contact (Figs. 2 and 3). One or both of the flanges 7 may be extended beyond the base 6 to the same or different lengths and a rail for upper and lower windows in a rest may be formed integral with each other (Fig. 10). The upper and lower rails of the sashes may be provided with two parallel grooves engaging over the flanges 7, 7b of the outer frame, and the sashes may be formed from a single member with the two grooves or from two members each with one groove placed one on the other. The base 6 may oe replaced by inturned flanges to provide a longitudinal slot.
Patent GB-1467626-A (GB)
Title: Method of decrystallization of sugary matter
IPC: A23G3/02
Filed: 1974-12-24
Abstract: 1467626 Decrystallizing sugar CREUSOT-LOIRE 24 Dec 1974 [28 Dec 1973] 55778/74 Heading A2B Sugar is decrystallized by feeding a mixture of undiluted crystallized sugar and liquid glucose to a double screw extruder having a heated casing wherein the mixture is progressively boiled. The screws may have different screw pitches along their length and the apparatus may also comprise a steam discharge means in the centre portion thereof.
Patent GB-1475410-A (GB)
Title: Electrophotographic members and method of making same
IPC: G03G5/05
Filed: 1974-12-24
Abstract: 1475410 Electro-photographic materials SCM CORP 24 Dec 1974 [26 Dec 1973] 55787/74 Heading G2C An electro-photographic member comprises a conductive support or a conductive layer on a support, a photo-conductive layer and a layer of a polymer capable of transporting charge carriers and a plasticizer which is an oligomer of diphenyl ether of Formula:- wherein n is at least 3 or a diphenyl ether containing at least one aryl substituent. Specified plasticizers are bis, mphenoxy-phenyl, ether, m-bis, m-phenoxyphenoxy, benzene, m-bis-m, phenyoxyphenoxy, phenoxybenzene and biphenylylphenyl ether. Specified charge transporters are organic photo-conductors, e.g. polyvinyl carbazole, and expolymers thereof, polyacenaphthylene and polyaminocarbazole, and this layer may also contain anthracene, polycarbonates, polyphenylene ethers or polysulphones. Se is the specified photoconductor and the member after charging is imagewise exposed to visible light to which the organic photo-conductor is insensitive but which transports charges generated by the Se layer.
Patent GB-1300736-A (GB)
Title: A cryostat assembly having a fluid tight joint
Inventor: POTTS ROBERT
IPC: F16J15/52
Filed: 1968-11-26
Abstract: 1300736 Bellows seal INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 6 Feb 1970 [26 Nov 1968] 56121/68 Heading F2B In a cryostat assembly in which an inner vessel is supported within an outer vessel by tie rods, a support bolt 1 extends through an aperture 3 in the wall 2 of the outer vessel and is connected at its inner end to a tie rod and carries an adjusting nut 13 at its other end, the bolt being sealed by a bellows 4 joined at one end to an apertured plate 6 fixed to the bolt and joined at its other end to an apertured plate 9 which allows movement of the bolt therethrough and which is supported on the wall by a structure 10 in a fluid-tight manner, as by welds 11. The space between the two vessels is maintained at a vacuum to provide thermal insulation for the cooled winding of a dynamo. The bellows may be made of stainless steel, the nut 13 may be provided with a locknut 17 and the bolt 1 prevented from turning by means of a grubscrew 15 engaging in a keyway 16 in the bolt.