baber/WOPTO huggingface dataset:
Patent GB-1388316-A (GB)
Title: Coating process
IPC: B05D1/24
Filed: 1972-11-09
Abstract: 1388316 Coating; work holders FORD MOTOR CO Ltd 9 Nov 1972 [29 Nov 1971] 51718/72 Headings B2E and B2L A coated article is produced by supporting the article on a carrier, applying a coating of pulverulent coating material to the article and the carrier, heating the combination of carrier and article to a degree sufficient to cause the coating material to adhere to the article but not to the carrier, the carrier having a sufficiently high thermal capacity to prevent the pulverulent coating material from adhering to the carrier, the coating material being removed from the carrier after the heating step and returned to the process. As shown in Fig. 2, articles to be coated are supported on a metal carrier as shown in Fig. 1 and carried through the coating system on a conveyor system. The articles are loaded in a loading area, passed through a fluidized powder bed, through an oven and the coated articles unloaded in a removal area. The carrier is passed to a cleaning chamber where powder is removed from the carrier by a pressure blower, the powder being returned by a blower to a supply for the fluidized bed, and the carrier then cooled and conveyed to the loading area.
Patent GB-1180255-A (GB)
Title: Ball Bearing for Mounting Longitudinally Movable Shafts
Inventor: SCHAEFFLER GEORG
IPC: F16C29/06
Filed: 1967-11-15
Abstract: 1,180,255. Bearings. W. SCHAEFFLER, and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER oHG.]. 15 Nov., 1967 [15 Nov., 1966]. No. 52030/67. Heading F2A. A ball-bearing for a longitudinally movable shaft comprises inner and outer sleeves 2, 1 together forming a plurality of ball guiding channels, each channel having two straight portions 4, 5 joined by semi-circular portions 6, 7, a longitudinal slot being formed in outer sleeve 1 at portion 5, and in inner sleeve 2 at portion 4, and the internal diameter of the outer sleeve 1 being enlarged at portions 6, 7. The balls circulate through the channel, being loaded in portion 4 and unloaded in portions 6, 5, 7. Sleeve 2 is injection moulded from plastics. Sleeve 1 is of metal and may be formed without cutting. Rims 12, 13 and projection 14 secure the sleeves together.
Patent GB-1319887-A (GB)
Title: Display panels
IPC: H05B3/84
Filed: 1971-11-15
Abstract: 1319887 Double glazing ANTHONY'S MFG CO Inc 15 Nov 1971 [16 Nov 1970] 52895/71 Heading E1R [Also in Division F4] A panel comprises two panes 10, 12 defining a sealed space 17 which contains electric heating means 15 and is at a pressure other than ambient, and a sensor 33 responsive to change in the differential pressure to disconnect the heating means. The space may be normally above or below the outside pressure, and the current is disconnected when a pane is broken. The panes are of glass, one having a conductive coating 15 with electrodes affixed. The sensor 33 protrudes through metal spacer 16 and has apertures (34, 35) connecting the space to one side of a diaphragm (36). Sealant 60 and resilient strip 38 are provided.
Patent GB-1532430-A (GB)
Title: Method of and apparatus for stacking textile yarns
IPC: D02G1/12
Filed: 1975-12-29
Abstract: 1532430 Temporary yarn storage RHONEPOULENC-TEXTILE 29 Dec 1975 [31 Dec 1974] 53004/75 Heading D1F A stack 9 of at least one multifilament yarn is produced by feeding the yarn 1 into an elongate chamber 5 by means of a stream of pressurised fluid and allowing the fluid to escape laterally from the chamber only ad jacent the opposite end from that in whict it is admitted, said opposite end of the chamber being constricted so that the stack formed is discharged peristatically from the chamber due to said opposite end of the chamber alternately expanding and contracting laterally under the action of the stack. Preferably, the constriction is formed by a taper which is too slight to be seen in the Figs. The fluid exits laterally of the tubular chamber 5 through orifices 6 in the end region remote from the injector 3. The orifices may be slits parallel to the tube axis and opening into the end of the tube. Alternatively they may be defined by a tubular grid which forms the end of the tube. The yarn may be flat. It may be crimped or uncrimped, depending upon the treatment conditions. The stacking of polyethylene terephthalate and nylon 66 yarn after it has been extruded and drawn at 3000 m/min is exemplified. As shown in Fig. 5 the stack may be wrapped as it leaves the chamber 5. The yarn may be stored as a stack rather than taken up onto a bobbin. Alternatively the chamber may be connected to a tube in which the stack is heated cooled or treated with a finishing agent.
Patent GB-1492527-A (GB)
Title: Glass ceramic fibres
IPC: C03C25/607
Filed: 1973-11-16
Abstract: 1492527 Glass-ceramic fibres NATIONAL RESEARCH DEVELOPMENT CORP 13 Nov 1974 [16 Nov 1973] 53270/73 Heading ClM A homogeneous vitreous fibre no greater than 50 Á in diameter, containing an alkali metal oxide, has some of this oxide replaced by a different alkali metal ion to a depth of no more than 500 , so that the concentration of the first alkali metal increases smoothly from the surface to the interior and the ratio of total alkali metal ion to SiO 2  remains constant from the surface to the interior whereby the core can be devitrified whilst the surface layer remains amorphous. The replacement may be effected by means of a melt or from vapour and the temperature of the fibre may be maintained within 20 C. of the annealing point during the replacement. The product may be used to reinforce metals, alloys, ceramics, plastics materials, cement or plaster or may be used as an insulating material.
Patent GB-1163133-A (GB)
Title: Improvements in Sealing Boots for Ball Joints.
Inventor: LANGEN VIKTOR
IPC: F16C11/06
Filed: 1966-12-02
Abstract: 1,163,133. Seals. V. LANGEN, [trading as A. EHRENREICH & CIE]. 2 Dec., 1966 [3, Dec., 1965], No. 54053/66. Heading F2B. [Also in Division E2] A sealing boot for use on ball and socket joints comprises an open-ended sleeve 3 formed by a wall formed of an elastic flexible material e.g. rubber the sleeve wall being thickened adjacent to the opening at a first end to form an annular rib 5 which fits in a peripheral groove 4 on the joint housing 1 adjacent to the joint pin aperture 1a, an annular portion of the sleeve wall having a cross-sectional shape which extends and tapers from the rib to the first end such that the annular portion of the sleeve wall constitutes an annular lip of tapered section 7, the second end of the sleeve being arranged to surround the joint pin 2. An annular protective beading 6 concentric with the internal rib may be formed on the sleeve exterior.
Patent GB-1245810-A (GB)
Title: Improvements in or relating to railway track-maintenance machines
Inventor: PLASSER FRANZ
IPC: E01B27/20
Filed: 1968-11-15
Abstract: 1,245,810. Railway track aligning and ballast packing machines. F. PLASSER. 15 Nov., 1968 [23 Nov., 1967], No. 54308/68. Heading E1G. Travelling railway track maintenance apparatus includes at least one ballast surface consolidator 12 which is intermittently slightly lifted - e.g. by hydraulic or other means 17 - so as to reduce the pressure on the ballast and so facilitate the continuous advance of the apparatus. In the track-aligning machine shown the track 4-5 is shifted laterally by tools 7 mounted on a chassis 1 which runs on the track and carries reference-line trolleys, Fig. 1 (not shown), the chassis having on each side one or a pair of outrigged vibratory consolidators 12 engageable with the ballast 6 beyond the sleeper ends. The outrigger arm 13 of the trailing consolidator is intermittently lifted between adjustable stops 15, 16; the leading consolidator may be similarly actuated or may (as shown at 12') be raised clear. Each consolidator may be tilted by a cylinder 21 and moved outwardly by a cylinder 26, and may, in plan view, be inclined to the track axis. The intermittent lifting may be controlled by a timing device; alternatively the arm 13 may have elastic resilience in a horizontal plane and incorporate a limit switch or other device which controls the intermittent lifting in accordance with the frictional drag between the ballast and consolidator.
Patent GB-1486559-A (GB)
Title: Pulse control circuits
IPC: H01H47/00
Filed: 1974-11-25
Abstract: 1486559 Control of DC motors SEVCON Ltd 25 Nov 1974 [23 Nov 1973] 54476/73 Heading H2J A pulse control circuit comprises semiconductor switching means connectible in series with a load and a DC source and operable alternately to connect and disconnect the load to and from the source, a shorting contactor in parallel with the switching means and operable on closure of its contacts to connect the load directly to the DC source, means to establish a predetermined voltage across the contacts when they are open, and a voltage sensing circuit connected in parallel with the contacts and operable to change its state when the voltage across the contacts falls below a predetermined level less than the predetermined voltage. The Figure shows the application of the invention to a control circuit for a D.C. series motor 2 driving a vehicle, the motor being in series with a thyristor 6 which is controlled by a conventional firing and commutation circuit 7 and is shunted by a contactor 8 closed when full power is applied to the motor. The direction of rotation is determined by the position of a change-over switch 14 controlling the coils 10, 12 of contacts connected to the motor field winding 4. The energization circuit for the coils 10, 12 is completed by a thyristor 16, which is fired by a unijunction transistor 18 when capacitors 34, 38 have charged to a predetermined value. The contactor 8 is supplied with a low voltage from a stabilized supply (not shown) or a Zener diode 59, so that when it is open this voltage is applied to a transistor 42 which conducts to render another transistor 52 non-conductive. With contactor 8 closed the conductivities are reversed, whereby transistor 52 conducts to prevent charging of the capacitors 34, 38. Thus the movement of switch 14 from one coil to the other will produce reversal of the motor only if the contactor 8 is open, since thyristor 16 becomes non-conductive when switch 14 de-energizes one coil and is fired by members 18, 34, 38 when switch 14 contacts the other coil. Failure of contactor 8 to open, when its actuating coil 60 is deenergized, prevents firing of thyristor 16 after the above described changeover and hence reenergization of the motor. To prevent the above operation occurring when the contactor 8 is to be kept closed during reversal of the motor to obtain "plug braking", the coil 60 is energized through normally-closed foot switches 13, 72, the switch 14, diodes 76 or 78 and the contacts 68 of a relay whose coil 66 is energized when coil 10 or 12 is energized. Thus during changeover of switch 14, the relay 66, 68 (having an operating time shorter than that of the switch 14 and contactor 8, 60) de-energizes the coil 60 to open the contactor 8, reclosure being effected when changeover has been completed.
Patent GB-1273707-A (GB)
Title: Improvements relating to infra-red thermal imaging systems
Inventor: GRIFFIN JOHN HENRY
IPC: G01J5/52
Filed: 1970-11-23
Abstract: 1,273,707. Television. MULLARD Ltd. 23 Nov., 1970, No. 55542/70. Heading H4F. An infra-red thermal imaging system comprises an InSb detector cell 1 cooled by a liquid 9 in a vacuum flask 8. An object to be viewed is scanned by a scanning arrangement 7 producing a scanning pattern 24 as shown, and the incoming radiation is directed on to a flat mirror 5, then to a spherical mirror 3, having a focus mechanism 4, and from the mirror 3 through a central aperture 6 in the flat mirror 5 to the detector cell. The output from the cell is fed via a pre-amplifier 10 and video amplifier 11 to a cathode-ray tube display 12, which is synchronized with the scanning arrangement 7. To provide a reference radiation level to the cell 1 a shutter arrangement (a) has four arms 13 each carrying a flat mirror 14, the shutter arrangement being rotated by a motor 22 synchronized with the scanning arrangement 7 so that during the period 25 at the end of each line scan one of the arms 13 outs off the incoming radiation to the cell 1. During this period the radiation from the cell 1 is reflected from the mirror 14 on the respective arm 13 on to a spherical mirror 15 and then back to mirror 14 and cell 1. To increase the level of the reference radiation incident on the cell 1 a light emitting diode 19, e.g. made of gallium arsenide energized by a battery 21 via a variable potentiometer 21a provides a controllable source whose radiation is passed through a lens 17 and a central aperture 20 in the mirror 14 to the mirror 4 and then to cell 1. During this reference period the opposite arm 13 interrupts the path between a lamp 26 and photo-cell 27, thus causing a clamping pulse generator 28 to produce a clamping pulse to operate a switching element 29, e.g. a field effect transistor which, when operated, produces a low resistance shunt path across a resistor 30. The resistor 30 and a capacitor 31 form an A.C. coupling between the amplifiers 10, 11, and when the switching element 29 is operated the level of charge on the capacitor 31 is re-set to a fixed D.C. off-set voltage determined by the reference radiation level. The arms 13 and mirrors 14 are coated with highly reflecting materials, which therefore have low emissivities, to reduce the effects of radiation from these parts on the reference level. The magnitude of the D.C. off-set voltage on the capacitor 31 may correspond to a zero brilliance setting on the cathode-ray tube display 12.
Patent GB-1243225-A (GB)
Title: Method of preparing moulded articles
IPC: B29C33/50
Filed: 1968-11-27
Abstract: 1,243,225. Casting in flexible moulds. GOODYEAR TIRE & RUBBER CO. 27 Nov., 1968 [29 Dec., 1967], No. 56227/68. Heading B5A. Moulded articles are prepared in a mould comprising a flexible contoured mould member 1 attached to a rigid support member 2 to form an enclosed cavity 5 therebetween and an inlet 4 for supplying and removing fluid from the cavity. Fluid is supplied to cavity 5 to distend the flexible mould member and at least one coat 6 of liquid polymeric material which is flexible when cured and does not adhere tightly to the flexible mould, is formed on said mould. The flexible member is sucked against the rigid support member 2 and the polymer is cured. The moulded polymer article may then be ejected by distending the flexible mould member 1, but the article is preferably filled with foam by placing a foam precursor in the mould, closing the mould by cover 7 and an optional mounting bracket 8 and foaming. The foamed article 9 is again ejected by distending the flexible mould. The flexible mould may be made from silicone rubber, flexible polyurethane, natural or synthetic rubber, ethylene propylene copolymers optionally with other monomers or products of the open ring polymerization of unsaturated alicyclic compounds. It may be coated with a release agent such as polyethylene or polypropylene waxes, dimethyl silicone fluids, greases, fatty acids and vegetable compounds, soaps fluorocarbons, polyvinyl alcohol or fluorosilicone before use. The skin and foam of the moulded article are preferably both polyurethane.
Patent GB-563759-A (GB)
IPC: C09F5/06
Abstract: 563,759. Drying oils. HOLE, S. R., and LEATHER CLOTH CO., Ltd. Dec. 3, 1942, Nos. 17228/42 and 17825/43. [Class 91] Drying oils are produced from castor oil by heating the oil in the presence of an oxide, or oxygen-containing salt forming an oxide under the conditions of the reaction, of the metals cobalt, iron, manganese, calcium, and zinc. Oxides specified comprise manganese dioxide and oxides of cobalt, calcium, and zinc. Salts specified comprise cobalt acetate, iron acetate, manganese acetate, borate, and carbonate. The metal compound is added, in the preferred proportion of 0.025 per cent by weight of the oil. The temperature ranges from 400-580‹ F. A drier is preferably added to the product, such as cobalt or lead in the form of a linoleate.
Patent GB-1416686-A (GB)
Title: Lids of synthetic plastics material
IPC: B65D43/02
Filed: 1971-12-10
Abstract: 1416686 Lids TUP (PANAMA) SA 6 Dec 1972 [10 Dec 1971] 57380/71 Heading B8T A vessel 1 has a flared rim 5 and a lid 2 with an upstanding rim seal 4 which has a central portion 3 and two generally convergent walls 6, 7 in which edge 8 of rim 5 is held to constitute a seal. A preferred embodiment has a centrally placed boss 16 with tapered walls 17 to assist in gripping. The outer peripheral surround 9 to the lid 2 may be outwardly and/or downwardly directed.
Patent GB-1187768-A (GB)
Title: Mining Machine
Inventor: RAE THOMAS GORDON
IPC: E21C35/23
Filed: 1966-12-29
Abstract: 1,187,768. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. 29 Dec., 1967 [29 Dec., 1966], No. 58168/66. Addition to 1,098,706. Heading E1F. In a mineral-mining machine in which a rotatable cutter tool, e.g. a cutter drum 4, is carried on a hollow shaft 3 supported by the body 1 of the machine, ventilating medium is caused to flow around the periphery of the tool by the medium being caused to flow through the shaft, which is connected by ducting 11 to apertures 13 in the tool adjacent the periphery thereof.
Patent GB-1247709-A (GB)
Title: Improvements in or relating to a combination feeding device and press apparatus
IPC: B21D43/04
Filed: 1968-12-11
Abstract: 1,247,709. Feeding articles. KAISER ALUMINUM & CHEMICAL CORP. 11 Dec., 1968 [18 Dec., 1967], No. 58974/68. Heading B8S. [Also in Division B3] Apparatus for feeding a succession of workpieces W to a press comprises a shoot 10, a workpiece receiver 14 at the discharge end of the shoot for locating the workpieces relatively to the press-die, and a resilient wiper movable to press the workpieces against the receiver until they are removed by the press-ram. As shown, the workpieces are cup-shaped can blanks, and the press includes drawing and ironing dies 24, 26, 28 and a stripper S through which the blanks are drawn by a punch 22 to form can bodies, the punch being driven through a fluid coupling 38 by a crank-operated piston 36. The wiper may be an endless belt or flexible cleats on such a belt or, as shown, a rotary brush 16 in which the nylon &c. bristles are secured in tufts between flanged side plates or are in continuous lines. The brush 16 extends between bars 56 of the shoot and is driven, through bevel gears, by a motor 116. Shoots.-The shoot comprises an adjustable back plate 60, a shorter front plate 62, two pairs of side bars 54, 56, a pair of front bars 58 and a hinged side wall 64 having a hooked top 94 and a hinged lower end. The shoot is mounted on the press by a central bracket 68, 70, the lower ends of rods 56 locating in holes in the receiver 14 which is bolted to the press. Guide ribs (108), Fig. 5 (not shown), may be fixed to the back plate 60 and a reinforcing strap surrounds the upper end of the shoot, which may be horizontal or slightly inclined thereto. A pivoted stop 128 for the shoot is operated by a fluid actuator 132 mounted on the press and controlled so that it operates only when the punch 22 is extended. Instead of a reversedraw die 24, a forward draw die may be used Fig. 7 (not shown).
Patent GB-1260340-A (GB)
Title: Plate dialyser
IPC: B01D63/08
Filed: 1969-12-05
Abstract: 1,260,340. Plate dialyser. BAXTER LABORATORIES Inc. 5 Dec., 1969 [7 Dec., 1968; 27 Dec., 1968; 27 Jan., 1969; 26 July, 1969], No. 59645/69. Heading B1X. A plate dialyser for haemo-dialysis comprises superposed units, each unit comprising a plate 1, Fig. 3, and cellulose membrane 3. The membranes 3 are located alternately over the bottom and top surfaces of the plates 1 with their ends 4 extending around inclined side edges 9 onto the respective opposing top or bottom surface where they are held by, e.g. the clamping action of adjacent plates, adhesive or solder. The plates have a series of capillary like dialysis liquid grooves 11 connected to each other by a pair of parallel transverse channels 13 located at either end of the plates. The channels 13 communicate with vertical passages 14 which pass through side shoulders 12 and the membranes to communicate with dialysis fluid inlet or outlet conduits (16), Fig. 4 (not shown), in, e.g. top cover plate 15, Fig. 7. Blood passes from an inlet conduit 19 of a side wall plate 18 to pairs of adjacent membranes via side wall channel 5 and preliminary chambers 10. Transverse side walls of the plates may be inclined and interconnected by means of a cast grouting mass (22), Fig. 5 (not shown). The grooves 11 may be straight, curved, intersect diagonally or perpendicularly, in which latter case there is no continuous ribbing but instead individual upstanding humps. The grooves may be offset in relation to each other to give a wide uninterrupted turbulent blood flow between the membranes particularly when a negative pressure is applied to the dialysis liquid, the plates then being supported by the side shoulders 12.
Patent GB-1292665-A (GB)
Title: Two-stage acoustic travelling wave device
Inventor: CLAIBORNE LEWIS TAYLOR JR
IPC: H01L29/66
Filed: 1969-12-19
Abstract: 1292665 Ultrasonic delay lines; filters TEXAS INSTRUMENTS Inc 19 Dec 1969 [25 Feb 1969] 61932/69 Heading H3U [Also in Division H1] In an ultrasonic travelling wave device comprising a piezoelectric crystal having two regions, at least the second region includes dynamic trapping centres with a relaxation time greater than the period of the input wave, and the regions are of different doping or cross-section so as to exhibit different ratios of electron drift velocity to velocity of sound. The trapping centres, constituted by shallow acceptor impurities, may be formed by irradiation at a wavelength <8 Á, or in the case of a cadmium sulphide body by an excess of sulphur. Typically the input and output piezoelectric transducers are disposed on the outer ends of the two zones on electrodes through which a D.C. bias is applied. In operation as an amplifier the amplification factor of the first region is maximum at a frequency slightly above that of the input, while the second region acts as a band-pass filter centred on the input frequency. Trapping causes attenuation of lower frequencies while high frequencies are 'attenuated by electron diffusion and thermal effects. Thus noise and non-linear interactions with harmonics and subharmonics are reduced and the device requires lower operating power than a comparable device without trapping. The device can also function as an active delay line or phase-shifter and its parameters can be adjusted to give optimum performance in these modes. Suitable piezoelectric materials are A II B VI and A III B V  compounds, and a typical trap relaxation time is 10<SP>-9</SP> sec. The theory of operation and characteristics are discussed at length.
Patent GB-2001464-A (GB)
Title: Emergency alarm installation
IPC: G08B29/04
Filed: 1978-06-21
Abstract: An emergency alarm installation includes at least two fluid-tight enclosures (3) filled with a fluid, the pressure of which increases in case of an emergency happening in its vicinity, typically in case of a fire, the heat of which causes an increase in pressure within the enclosures. The enclosures (3) are connected to respective bellows (23), (23') operable by the common armature (24) of electromechanical transducers (25), (25') which receive electric checking pulses for causing abrupt variations in pressure in the enclosures for purposes of checking the proper operation of the installation. Provision is made for detecting a relatively abrupt increase in pressure to provide one type of fire alarm, a rise in pressure beyond a certain maximum value to provide another type of fire alarm and a possible disappearance of pressure, due, for example, to a leak, in order to provide a technical alarm. In this manner, the installation continuously checks its own proper operating condition. <IMAGE>