baber/WOPTO huggingface dataset:
Patent GB-471135-A (GB)
Title: Improvements in sandals
IPC: A43B3/12
Filed: 1936-03-12
Abstract: 471,135. Sandals; laces. FRANKLIN, H. W., and FRANKLIN & SONS, Ltd., J. G. March 12, 1936, No. 7521. [Classes 17 (ii) and 43] A sandal comprises a laminated sole member a with marginal loops, eyes or the like c projecting above the upper layer and interconnected, for example in pairs across the sole, between the layers and forming guides through which a draw lace or laces are passed so as to secure the sole to the foot. The sole may comprise layers of cork separated by layers of flexible rubber such as described in Specification 471,126. The guide loops c may be formed by folding pieces of stranded wire and twisting the ends together. The ends are then passed through some of the sole layers and connected by twisting to the wire of an opposite guide loop. The laces b are wide to distribute the pressure on the foot and may have wide portions alternating with narrow portions which latter portions engage in the guide loops.
Patent GB-1045171-A (GB)
Title: Steam turbine
IPC: F01K19/02
Filed: 1963-03-26
Abstract: 1,045,171. Steam turbines. R. BAR. March 26, 1963, No. 7630/63. Heading F1T. A steam turbine comprises a double-sided rotor 20 mounted within a housing 10. Steam is supplied to turbine blades 22 on the rotor through nozzles 11, the steam then flowing radially outwards to be compressed by the blades 25 of a centrifugal compressor integral with the rotor before passing through passages 12 in domed portions of the housing 10 to discharge through nozzles 13 onto peripheral turbine blades 27. A peripheral deflecting shield 18 is attached to the housing 10 and positioned between turbine blades 22 and compressor blades 25 in the region of the nozzles 11.
Patent GB-989574-A (GB)
Title: Shipping container and method of making the same
Inventor: MCCONNELL WILLIAM
IPC: B65D3/30
Filed: 1963-02-26
Abstract: 989,574. Portable containers. METAL CONTAINERS Ltd. Feb. 24, 1964 [Feb. 26, 1963], No. 7634/63. Heading B8D. A container comprises a side wall 11 and a bottom 12 both of layers of fibrous material such as kraft liner board, the bottom being a sandwich of stronger outer layers 13 of material such as kraft liner board and a weaker inner layer 14 of material such as millboard or chipboard. All the layers of the bottom are initially of the same diameter greater than that of the side wall. The peripheral edge of the bottom and the adjacent marginal edge of the wall are interconnected by a fold seam 15 and an annular portion of the bottom adjacent to the wall is clasped between the seam and an internal rib 16. The container may have a metal reinforcing ring 17 around the fold seam 15. The external outer layer 13 of the bottom may be coated with a bitumen impregnated layer which may be laminated with the adjacent layer by means of a layer of bitumen.
Patent GB-841468-A (GB)
Title: Process for the preparation of allyl cyanide
Filed: 1959-03-06
Abstract: Allyl cyanide is prepared by passing a mixture of allyl chloride and hydrogen cyanide in the vapour phase over a copper-containing catalyst at 150 DEG  to 300 DEG  C., preferably 200 DEG  to 275 DEG C.  Specified catalysts are copper sulphate on fused alumina, cuprous chloride on fused alumina and copper aluminium oxide.ALSO:Copper catalysts for the vapour phase production of allyl cyanide from allyl chloride and HCN include copper sulphate on fused alumina, cuprous chloride on fused alumina and copper aluminium oxide.  The last-named is suitably prepared by the coprecipitation of aluminium and copper hydroxides followed by heating to convert the hydroxides to oxides. Approximately 8% copper is present as copper oxide, the balance being aluminium oxide.
Patent GB-683711-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: B04B11/04
Filed: 1950-03-29
Abstract: 683,711. Centrifugal machines. WATSON, LAIDLAW & CO., Ltd., TATE & LYLE, Ltd., and SIMMONS, C. E. G. June 20, 1951 [March 29, 1950], No. 7832/50. Class 23 Apparatus for charging at least one centrifugal machine comprises mixer means 1, 2 adapted to discharge by way of valve means 3, 4 to a conduit 5 having at least one discharge door 14 therein, a cylinder 6 having a piston 7 of adjustable stroke and connected to the conduit and thrustors 17, 16 and 10 operatively connected to the valve means, to the discharge door and to the piston, respectively. In operation one of the valves 3, 4 is opened and the piston 7 retracted to permit a flow of massecuite into the conduit 5. When the piston 9 has moved a certain distance the valve 3 or 4 is closed and a door 14 opened whereupon the piston 9 is actuated to feed the massecuite into the centrifuge. The thrustors are operated by hydraulic, pneumatic or electrical means. The discharge doors are interlocked so that one door only can be opened at a given time. The doors may be locked by a tongue engaging the control handle of the remaining doors when one of the doors is open. The top of the cylinder 6 communicates with a reservoir 11 containing syrup.
Patent GB-1353142-A (GB)
Title: Washing of beer kegs or like containers
IPC: B08B9/08
Filed: 1970-02-18
Abstract: 1353142 Washing containers GIMSON & CO (LEICESTER) Ltd 13 May 1971 [18 Feb 1970 30 Nov 1970] 7847/70 and 56812/70 Heading B8T [Also in Division G3] In an apparatus for washing beer kegs in which the kegs are subjected to treatment with cold water, hot detergent, hot water and steam with interposed air blasts, the drainage duct of the washing head includes a sensing head to detect the presence or absence of liquid passing through. The sensing head comprises two electrodes 4 attached to leads 12 so that when an electrically-conductive liquid passes through the sensing head, a current flows between the electrodes and activates a relay of a timing circuit (Fig. 3, not shown) for opening and closing gas and liquid valves in a predetermined sequence. The circuit is designed such that each stage in the washing cycle cannot proceed until the previous stage has ended.
Patent GB-589721-A (GB)
Title: Improvements in snap action electric switches
IPC: H01H5/04
Filed: 1945-03-28
Abstract: 589,721. Snap action switches; retractive switches. DEHN, F. B. (Hetherington & Son, Inc., R.) March 28, 1945, No. 7848. [Class 38 (v)] In a snap-action switch, a contact-bridging member 49 carries inwardly spring-pressed balls 51 which engage oppositely-coned surfaces 38, 39 of a spring-retracted plunger 28, so that movement of the plunger results in movement of the bridging member to connect or disconnect semiannular contacts 56, 57. The bridging member 49 has an annular silver contact face 55, and carries three balls 51, located in radial bores 50 and pressed inwardly by a garter spring 54. When a push-button 24 is depressed, the plunger 28 is moved against the action of a spring 45 until the crest 40 passes the balls 51, whereupon the member 49 snaps over and opens contacts 56, 57. Continued depression of the button is taken up by an overtravel spring 25. In a single-pole double-throw switch, Fig. 5 (not shown), a second pair of contacts is closed in the other end-position of member 49. In Fig. 7 (not shown), depression of the button closes normallyopen contacts.
Patent GB-770055-A (GB)
Title: Improvements in or relating to radio frequency valve amplifiers
Inventor: O'DWYER MARTIN THOMAS
IPC: H03F1/54
Filed: 1954-03-18
Abstract: 770,055. Valve amplifying circuits. PYE, Ltd. June 3, 1955 [March 18, 1954], No. 7910/54. Class 40(6) In a radio-frequency power amplifier, comprising a screen-grid valve V1 and in which grid-current bias is used, the D.C. bias across the grid leak R1 is also applied to an auxiliary valve V2, the anode of which is connected to H.T. via a resistor R2 and to the screen-grid of the valve V2 via a gas-discharge tube V3. The arrangement is such that if the drive to the valve V1 fails, the lack of negative bias across grid leak R1 causes valve V2 to take an increased current and so reduces the potential on the gas-discharge tube V3 that it is extinguished. Thus the screen-grid voltage of the valve V1 is removed and so excessive anode disipation prevented.
Patent GB-1504747-A (GB)
Title: Production of laminates
IPC: B29C44/30
Filed: 1975-02-26
Abstract: 1504747 Laminating apparatus INDUSTRIAS MONTERREY SA 26 Feb 1975 7965/75 Heading B5N An apparatus for producing laminated panelling made of a core 19 of rigid polyurethane foam sandwiched between two outer facing sheets 3, 11 comprises a production line having two successive sections:-a first upstream section A having at its upstream end take-off means 1, 2 for metal webs to be used as facing sheets and additionally comprising means for treating the metal webs, and a second, downstream section B capable of receiving metal webs from the first section and provided at its upstream end with take-off means for webs of other material which are to be used as facing sheets and which do not require the treatment, the laminated panelling being produced at the second section. In the embodiment described, the means for treating the metal webs comprise means 8 and 15 to provide the metal sheets with the desired designs. Section B of the apparatus comprises means 29 and 32 for the supply of facing material e.g. paper, cardboard or plastics and means in chamber 10 for injecting a polyol and a polyisocyanate between the facing materials, the conveying means 21 having an upper section 22 and a lower section 23 adjustable to vary the thickness of the panelling. Coolers 24 and 25 are provided to harden the polyurethane.
Patent GB-1458268-A (GB)
Title: Method and machine for manufacturing a continuous sheet of  paper of two or more layers
IPC: D21F11/08
Filed: 1974-02-21
Abstract: 1458268 Paper-making BELOIT CORP 21 Feb 1974 [21 Feb 1973] 7981/74 Heading D2A To manufacture paper having two or more layers the first layer is deposited from a headbox 11 onto a rectilinear section 5 of a foraminous belt 4, and the or each subsequent layer is formed on the foraminous outer surface of a respective rotating forming cylinder 22 before being transferred onto the layer(s) on the belt 4, there being a suction box 65 immediately downstream of the region of contact between the belt 4 and the cylinder 22 to assist in dewatering the first layer, to assist in detaching the layer from the cylinder 22 and to assist in adhering the layers together. The cylinder 22 as shown houses suction boxes 61, 62, a wetting box 63, and an air jet blowing device 64. Nozzles 71 spray washing water onto the surface of cylinder 22 and doctor blades 68 are provided to clean the cylinder. The cylinder 22 may be mounted as part of a unit 21 which can be raised or lowered by lifting devices 26, for maintenance purposes. The unit 21 includes a headbox including adjustable pivotally mounted slice lip portions 45, 47 to allow control of the size of the slice opening.
Patent GB-550919-A (GB)
Title: Improvements in or relating to combing machines for textile fibres
IPC: D01G19/10
Filed: 1941-06-26
Abstract: 550,919. Combing machines. NASMITH, J. W. June 26, 1941, No. 8010. [Class 120 (i)] In a combing machine of the Nasmith type the top comb shaft T is provided with means e.g. the adjustable rod 11, Fig. 1,'for imparting oscillatory movement thereto which is adjustable to vary the amplitude of the movement without altering the adjusted working position of the top comb in relation to the detaching roller. In the type of machine wherein the nipper hinges on a point below the cylinder the top comb arm 3 is pivoted on a pin 4 in the lever 5 keyed on the shaft T while the slide bar 6 through which the shaft T is oscillated is formed with an extension 7 having an arcuate slot 8. The adjusting rod 11 is mounted on a pin 12 movable in the slot 8 and passes through a swivel block 10 carried by a lever 9 keyed on the shaft T. The arc of the slot 8 is struck from the pivot pin of Block 10 when the top comb is in the most forward position as shown and when the parts are in this position the pin 12 can be adjusted in the slot without affecting the position of the top comb itself. In the machine wherein the nipper hinge point is above the cylinder the top comb shaft T is rocked through a threearmed lever 15 pivoted at 16, Fig. 2, a link 18 and a lever 21 having a slot 20 struck from a pivot 17 in the upper arm of lever 15. The link 18 is pivoted at 17 and carries a pin 19 adjustable in the slot 20. The pin 19 may be adjusted in the slot 20 without affecting the position of the top comb. The drive to the top comb carrier 14 is transmitted from the shaft T through the lever 22 rod 23 and fork 24. If desired the shaft T may be operated direct from the nipper shaft instead of through the three-armed lever 15 by keying upon the nipper shaft a lever with an arcuate slot for the pin 19 and pivotting the other end of the link 18 upon a lever on the shaft T.
Patent GB-292681-A (GB)
Title: Improvements relating to rubber roadways
IPC: E01C5/22
Filed: 1927-03-23
Abstract: 292,681. Jaques, J., and McMahon, F. W. March 23, 1927. Foundations; surface markings.-Rubber roadsurfacing composition a is laid in an unvulcanized condition on a concrete road foundation furnished with projections b or undercut grooves to key the rubber which is afterwards vulcanized in situ. The projections may be of rectangular or other form, and the grooves may run longitudinally, transversely, or diagonally. Lines or signs for traffic guidance may be formed in a similar manner. In order to permit of vulcanizing the rubber quickly at a low temperature, an accelerator such as piperidine pentamethylene dithiocarbamate may be incorporated in the composition. Specifications 2336/14, [Class 20 (iv), Floors &c.], 218,177, and 235,733 are referred to.
Patent GB-1455111-A (GB)
Title: Tufting machines
IPC: D05C15/00
Filed: 1972-08-22
Abstract: 1455111 Tufting machine CUPA ENG CO Ltd 31 Oct 1973 [22 Aug 1972] 8034/72 Heading DIG A tufting machine forms pile-loops over fingers 14 which extend above the work and which move transversely to allow the yarn to be laid thereover, a looper 14a below the work co-operating with the needle loop to form chain stitches in the work. Temple rollers (4, Fig. 1 not shown) may be shogged laterally to provide a zig-zag tufted seam (Figs. 3, 3a not shown).
Patent GB-1063583-A (GB)
Title: Improvements in or relating to method and apparatus for casting metal
IPC: B22D11/108
Filed: 1965-02-24
Abstract: In a continuous casting process, gas-entrained particles are supplied to the pouring jet through the hollow stopper of the ladle or tundish, for the purpose of deoxidizing, oxidizing or increasing rimming action, nucleation, alloying, cooling, grain size control or machinability.  The entraining gas may be propane, argon, nitrogen, oxygen, air, natural gas, hydrocarbon gases. Numerous examples of particulate solids for the purposes specified are tabulated.
Patent GB-667505-A (GB)
Title: Improvements relating to extension ladders
IPC: E06C1/12
Filed: 1950-03-31
Abstract: 667,505. Ladders. LLOYD'S CYCLES,. Ltd.. W. A., and KING, J. LAWSONJune 1, 1950. [March 31, 1950] No. 8072/50. Class 20(ii). In an extension ladder the stile 3, Fig. 2' of one ladder section carries a guide member 10 interlocked with it by means of a rib 17 engaging a groove 6 and having a rib 18 slidable in a groove 8 in the stile 4 of another ladder section. The guide member 10 is riveted to the stile 3 by the end of a rung 7. The stile 4 may by means of the groove 8 similarly carry a guide member slidable in the groove 6. The grooves and ribs may be dovetailed. In a modification the locking members 22 Fig. 8 have grooves engaging ribs 27, 28 on the ladder stiles.
Patent GB-165423-A (GB)
Title: Improvements in fuel
IPC: C10L1/32
Filed: 1919-12-22
Abstract: In the production of a mobile paste fuel consisting of up to 75 per cent of solid carbonaceous particles suspended in liquid hydrocarbon the viscosity of the liquid is adjusted to retard the settling out of the particles.  The viscosity may be increased by (1) addition of petroleum or asphaltic pitch, petroleum residues or heavy petroleums, or (2) emulsifying the oil with the lime-resin product mentioned in Specification 149,306, followed or not by repeated heating and cooling.  The carbonaceous substance is pulverized or otherwise reduced until about and preferably more than 95 per cent passes through a screen of 100 mesh to the linear inch and 85 per cent through a screen of 200 mesh, and is then mixed with the liquid hydrocarbon by passage through a ball, tube, or paint mill with or without heating; or the solid may be reduced in presence of the liquid.  Suitable carbonaceous substances specified are anthracite, semi-anthracite, bituminous and semi-bituminous coals, lignites, peats, pressure still, smelting, and gas cokes and charcoals. Suitable liquids mentioned are fuel oils, pressure-still oil or tar, coal tar from coke ovens or gas works, and molasses.  The stability of the composite may be further increased by other measures as described in Specification 149,306.
Patent GB-557272-A (GB)
Title: A new or improved soap saving device
IPC: C11D17/04
Filed: 1942-06-16
Abstract: 557,272. Soap holders. POPPER, P. June 16, 1942, No. 8209. [Class 131] A soap holder adapted for attachment to a cake of soap comprises a part 1 having a peripheral flange 3 inclined outwardly so that when pressed into the soap a wedge section of space is formed in the soap into which space the soap may be worked to key the holder in position. To prevent undue penetration a shelf-like portion 4 is provided. Fig. 3 shows another form made of sheet metal. If desired the peripheral flange may be replaced by spikes and alternate spikes may be bent horizontally to form the shelf. Specification 559,141 is referred to.
Patent GB-269874-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/22
Filed: 1927-03-25
Abstract: 269,874. Bosch Akt.-Ges., R. April 21, 1926, [Convention date]. Void [Published under Sect. 91 of the Act]. Condensers have a dielectric. of paper or similar fibrous material which is treated with an impregnating mass of water-insoluble wax-soap, montan wax and beeswax being specified, and saponification being effected by, for example, barium, calcium, magnesium hydrate. The advantages claimed for this dielectric are that it is suited to high temperature working (for instance, ignition devices for internal combustion engines), a constant and high capacity under all temperature variations, and that the condenser is not hygroscopic.
Patent GB-1181564-A (GB)
Title: Self-Clocking Record Sensing System.
Inventor: JENSEN ALAN KIMBLE
IPC: G11B20/14
Filed: 1967-02-21
Abstract: 1,181,564. Transistor pulse circuits. MONROE INTERNATIONAL CORP. 21 Feb., 1967 [21 Feb., 1966], No. 8273/67. Heading H3T. [Also in Division G4] The following circuits are used in a self-clocking data system in which the time between two pulses is recorded as a charge on a capacitor and this is used to inhibit the passage of further pulses until after passing of this time (see Division G4). In Fig. 3, which produces a negative pulse at ISA of duration proportional to and less than the duration of a positive pulse at 222 and starting when the latter finishes, the positive pulse at 222 cuts off transistor 200 allowing capacitor 204 to charge from constant current source 206 via transistor 202. When the positive pulse ends, a larger constant current source 208 discharges capacitor 204, transistor 202 being held off while this is happening. The feedback connection via diode 218 may be eliminated. In the peak detector of Fig. 5, a positive or negative input pulse at 32 makes transistor 300 or 302 conduct, respectively, to charge capacitor 304 from the upper + 18 volt source or the lower -24 volt source, the path branches via diode 322 and transistor 310 and via diode 326 and transistor 314 providing high current at high frequencies. At the peak of the input pulse, the conducting transistor 300 or 302 is cut off to produce a signal via transistors 310, 312 and clamping level shifter 328, 330, 332 to output line 36 or via transistors 314, 316 and clamping level shifter 342, 344, 346 to output line 38. A pulse on either output line 36, 38 produces a pulse on a further output line 40 via a diode OR gate 336, 338, 340. In Fig. 7, input pulses at 42 each discharge a capacitor 404 via a transistor 402, the capacitor 404 being charged between-times via a transistor 414. If the gap between adjacent input pulses exceeds a predetermined duration, the capacitor 404 charges sufficiently to cut off transistor 414, producing an output pulse at 46.
Patent GB-1437738-A (GB)
Title: Drop dispensing apparatus
IPC: G01N33/48
Filed: 1974-02-25
Abstract: 1437738 Drop dispensing apparatus AMERICAN HOSPITAL SUPPLY CORP 25 Feb 1974 [28 June 1973] 8374/74 Heading B8N [Also in Division F1] Apparatus for the dropwise dispensing of a liquid from a liquid reagent bottle 11 comprises a tube 10 formed of relatively rigid and dimensionally stable material, e.g. glass, a long stem 14 of the tube extending downwardly into the bottle through its mouth, and a short stem 16 terminating in a horizontal annular end surface 18 located above the maximum level Y to which liquid can rise by capillary attraction up the stem 14. The stem 16 has an internal bore diameter of 0À25 to 3 millimeters and its outside diameter is preferably no greater than 4 mm. The apparatus described is arranged to dispense drops 36 into a vessel 24 and passes through a stopper 21 on the bottle 11. An air pump 25 is connected by a conduit 26 to the bottle interior through an electromagnetic valve 13 and filter 29. In operation the valve 13 is open and air is pumped into the bottle to discharge liquid therefrom via the tube 10. When a drop 36 leaves the end 18 of the tube it breaks a beam of infra-red light between a source 32 and a receiver 34 thus causing the receiver to actuate an electrical circuit 35 to close the valve 13 and vent the bottle. This results in retraction of the liquid remaining within the tube 10 away from the top 16. After a preset time interval the valve 13 is again opened.
Patent GB-300861-A (GB)
Title: An electrically released door-bolt with alarm, for use on bathroom doors and the like
IPC: E05B47/02
Filed: 1928-03-21
Abstract: 300,861. Tack, C. R. March 21, 1928. Electrically operated fastenings; fastenings operating signalling-apparatus.-A door-bolt 2 is released by a solenoid 7 in parallel with a solenoid 8 which closes a switch 12 in a bell circuit, the switch being held closed by a detent 14 released by a hard-operated trigger 15. The battery is connected to terminals 18, while terminals 19 are connected to a distant push-switch, which may be formed by the head and side rails of a bath, or to a thermally-actuated switch. A close-fitting spring bolt 6 operated from either side of the door ensures the loose fitting of the bolt 2 in its staple 5. The bell circuit is completed by screws 17 used to secure the bell 16 and casing 1 to the door. Solenoid 8 has an adjusting-screw 11.
Patent GB-558267-A (GB)
Title: Improvements in and relating to spectacles
IPC: G02C5/22
Filed: 1942-06-24
Abstract: 558,267. Hinges for spectacles. BOLLE, L., and LA NATIONALE SOC. ANON. June 24, 1942, No. 8674. [Class 65 (ii)] In a hinge for spectacles, the. centre lines 5, 7 of the wings 1, 2 are inclined relatively to the axis of rotation 8, the upper and lower surfaces of the wings being parallel to each other and to the axis 8, while the inclination of the centre line of one wing is selected according to the desired inclination of the frame 15. and the inclination of the sides 14. The rivet holes in the wings are at right angles to the upper and lower surfaces. The axis of rotation of at least one hinge member may be inclined relatively to the generating line of the sockets 6, 9.