baber/WOPTO huggingface dataset:
Patent GB-689575-A (GB)
Title: Improvements relating to filter elements of filters
Inventor: BURNELL WILLIAM JOHN
IPC: B01D29/11
Filed: 1949-12-28
Abstract: The method of producing a filter element for insertion in a filter casing comprises impregnating paper with a dispersion in a dispersion medium which is evaporabe at a temperature below that causing deterioration of the paper of a substance, which, without undergoing chemical change, is adapted to stiffen the paper, evaporating the dispersion medium from the impregnated paper, the concentration and amount of the dispersion employed being such that the paper is stiffened so as to be shape-retaining and has pores for the passage of a fluid, and forming the stiffened paper into a longitudinally-corrugated tube or other shaped filter element.  In an example the paper is passed over a roller which is continuously wetted with the impregnant, the paper being subsequently passed over drying rollers within a low-temperature oven.  The impregnating agent may be an emulsion of polyvinyl acetate in acetone, the amount of acetone being varied to alter the size of the pores in the dried impregnated paper.  High melting point waxes and soluble waxes may be employed and the stiffening compound may be applied as a true solution.  The impregnated paper is formed into a longitudinally corrugated tube alternate troughs of the corrugations contacting inner and outer metal tubes respectively, the ends of the filtering member being sealed as described and claimed in Specification 689,619.
Patent GB-341997-A (GB)
Title: Process for the manufacture of menthenes
IPC: C07C5/05
Filed: 1929-10-31
Abstract: Menthenes are prepared by the partial hydrogenation of menthadienes containing a double bond outside the ring, which is effected by employing nickel as the catalyst at low temperatures of 40-80 DEG  C. The exterior double bond is thereby hydrogenated, leaving the nuclear double bond unattacked.  Examples are given of the partial hydrogenation of b -terpinene to D <3>-menthene, sylvestrene to D <1>-m-menthene, b -phellandrene to D <2>-menthene, and dipentene to carvomenthene; in each case the hydrogen is employed under pressure. The Specification adverts to the prior use of copper and platinum.ALSO:Menthenes are prepared by the partial hydrogenation of menthadienes containing a double bond outside the ring, which is effected by employing nickel as the catalyst at low temperatures of 40-80 DEG  C.  The exterior double bond is thereby hydrogenated, leaving the nuclear double bond unattacked.  Examples are given of the partial hydrogenation of b -terpinene to D 3-menthene, sylvestrene to D 1-m-menthene, b -phellandrene to D 2-menthene, and dipentene to carvomenthene; in each case, the hydrogen is employed under pressure.  The Specification adverts to the prior use of copper and platinum.
Patent GB-417358-A (GB)
Title: Improvements in or relating to boxes and like containers
IPC: E05D1/02
Filed: 1933-11-27
Abstract: 417,358. Boxes; hinges. FIDDES, J., Torry Sawmills, Aberdeen. Nov. 27, 1933, No. 33215. [Class 18.] A box is provided with binding wires 20 or local reinforcing wires disposed substantially wholly between the walls of the box and cleats or battens secured on the outside of the walls. The wires are secured in position by the bifurcated rivets or staples that fasten the cleats, and they may also constitute hinges for the lid. A wire 23 crossing an edge of the box may be reinforced by additional wires and it can be doubled upon itself an even number of times so that a limb of staples 25 passes through the bights of the loops. Protruding ends or loops 21 of wire are twisted together and form fastening means for the lid which may be either hinged or completely removable and these protruding parts also serve as eyes for the attachment of labels or for clamping in soft metal seals. Reinforcing wires 26 are secured by staples 27 or by driving the inturned ends 29 of the wire into the material of the box.
Patent GB-481997-A (GB)
Title: Fluid pressure brake and steering controls for aircraft
IPC: B64C25/48
Filed: 1936-12-04
Abstract: 481,997. Aircraft landing-wheel brakes. DUNLOP RUBBER CO., Ltd., BEHARRELL, G. E., WRIGHT, J., and TREVASKIS, H. Dec. 4, 1936, No. 33281. [Class 4] A fluid-pressure brake for 'aircraft, controlled by a pair of pressure-reducing valves, so as to give equal or unequal braking pressures on either side of the aircraft, comprises a pair of parking valves each arranged in the connection between a reducing-valve and the brakes and controls, and comprising valve members 26, 32 coaxially displaceable in one direction against a spring. The connection 10 is connected to a reducing-valve and the connection 11 to a brake, so that the brake is normally supplied past the valve 26. When a lever 18 is moved to the full-line-position shown the valve member 15, carried by diaphragms 13, 14, is moved to the position shown so as to seat on the valve member 26 and close the connection between the reducing valve and the brake. Simultaneously the valve 32 is opened and admits air at full pressure from the connection 8 connected to the air container to the brake connection 11. The lever 18 is operated by raising a lever on the leading edge of the control column which movement is also capable of ensuring the desired movement of the elevators of the aircraft. Specification 430,842 is referred to.
Patent GB-302493-A (GB)
Title: Improvements in and relating to spectacles
IPC: G02C7/10
Filed: 1927-12-09
Abstract: 302,493. Rowe, F. A. Dec. 9, 1927. Eye-shields.-Antidazzle spectacles for use by motorists comprise a pair of rectangular frames 1, each fitted with an opaque or semiopaque screen hinged about a vertical axis at one end of each frame. The screen 5 is arranged to be held in certain definite angular positions up to an angle of 90‹ to the frame by a rib on each screen engaging slots in the frame or vice versa. To permit the ribs to ride over the portions of the frame between the slots the frame is made slightly expansible by cuts in the vertical members. The screens when closed cover one half of the frame.
Patent GB-1443458-A (GB)
Title: Electrostatic printing apparatus and method using a moving shutter area for selective mechanical and electrical control of charged particles
IPC: G03G15/32
Filed: 1973-07-12
Abstract: 1443458 Selective printing ELECTROPRINT Inc 12 July 1973 [19 July 1972] 33366/73 Heading B6F An electrostatic printer comprises a source 21 of ions, and a moving shutter member 20 which prevents ions from impinging on a record medium 23 except when an aperture 32 is positioned between the ion source 21 and the medium 23, the apertures 32 being controlled electrically to permit or prevent passage therethrough of ions. The shutter member may be a drum as shown or a belt (200, Figs. 9, 10, not shown). A single set of apertures 32 may be provided (Fig. 1, not shown) or a plurality of sets 26 ... 31 positioned helically around the drum 20. Corresponding apertures in the various sets may be switched simultaneously, only one set being operative at any moment.
Patent GB-1274482-A (GB)
Title: Clockwork fuze having a rotatable fuze-setting ring
Inventor: KAISER PAUL
IPC: F42C9/02
Filed: 1969-07-02
Abstract: 1,274,482. Clockwork fuzes. JUNGHANS G.m.b.H. GEB. 2 July, 1969, No. 33397/69. Heading F3A. A clockwork fuze for a projectile comprises a timing ring 2 formed with a slot 2c through which a lever 72 falls to trigger the fuze when the ring has rotated through an angle α#360 degrees, a covering ring 27 formed with a boss 27a temporarily blocking the slot 2c, and a setting pin (not shown) adjustable from the exterior whereby the timing ring and covering ring can be coupled together so that the fuze is triggered after a travel of a + 360 degrees instead of a as in the uncoupled state. Normally, the covering ring 27 is locked against rotation by a latch 28 whilst the ring 2 is free to rotate in an anticlockwise direction to bring the slot 2c into coincidence with the lever 72. When the timing and coupling rings are coupled together, the latch 28 is released and the two rings rotate together through an angle larger than a and smaller than α+360 degrees before being uncoupled. The covering ring is then locked automatically by latch 32 and the timing ring continues to rotate to trigger the fuze. The coupling means is a pinion 25 which engages teeth on the coupling and timing rings. A toothless sector on the covering ring causes it to be uncoupled from the timing ring during rotation. The pinion may form part of a transmission means whereby the covering and timing ring rotate relative to one another and uncover the slot after a common rotation of 360 degrees.
Patent GB-1221944-A (GB)
Title: Battery charging systems for use in road vehicles
Inventor: WRIGHT MAURICE JAMES
IPC: H01B3/44
Filed: 1967-07-21
Abstract: 1,221,944. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. July 12, 1968 [July 21, 1967], No. 33641/67. Addition to 1,161,751. Heading G3R. In a battery charging system, for a road vehicle, of the type described in Specification 1,161,751, the generator is an alternator 11 which charges the battery 15 through a full wave rectifier 12, the voltage sensing stage 17, 18 of the voltage regulator is connected directly across the battery at all times, and both the output circuit, i.e. the transistor 24 and its associated circuitry, and the output drive stage i.e. the transistor 21 and its associated circuitry, of the regulator are connected to a terminal 23 which is connected to the battery 15 through a resistor 32 and the ignition switch 16 of the vehicle in series, the alternator providing an output to the terminal 23 through one or more diodes so that the resistor 32 is effectively short-circuited when the alternator is producing an output. Thus a warning lamp 31 in parallel with the resistor 32 is illuminated when the ignition switch is first closed and is extinguished when the alternator outputbuildsup.
Patent GB-348613-A (GB)
Title: Apparatus for rolling and unrolling endless bands provided with perforations
IPC: B65H20/20
Filed: 1929-11-05
Abstract: 348,613. Feeding webs. AKT.-GES. KOLMAG, Glarus, Switzerland. Nov. 5, 1929, No. 33672. Convention date, Oct. 8. Void [Published under Sect. 91 of the Acts]. [Class 100 (i).] An apparatus for feeding an endless perforated band, such as a gramophone record film, comprises a toothed drum c on which the roll b is loosely hung and which is driven to unwind the band, and a second toothed drum d for feeding the band to the outside of the roll. The band passes round a resiliently mounted guide roller f. Specification 326,968, [Class 97 (i), Optical systems &c.], is referred to.
Patent GB-383081-A (GB)
Title: Improvements in and relating to apparatus for reconditioning used oil
IPC: B01D21/00
Filed: 1931-12-04
Abstract: <PICT:0383081/III/1> Used lubricating oil is passed into an upwardly extending compartment 2 of a tank 1.  The head of oil causes passage of oil upwardly through a filter cloth 10 stretched over a frame secured to angle-irons 11.  The filtered oil is drawn off through a cock 14 into a vessel 5.  A cover-plate 13 which permits of removal of the filter is adapted to be closed airtightly; so that air may be trapped in the compartment 4<1> above the filter to ensure slow passage of oil through the filter.  The tank 1 may be fitted with a steam-heating pipe 22 and with a sloping partition 6 leading to a sludge outlet 20.
Patent GB-390778-A (GB)
Title: Improvements in or relating to methods of and means for enabling the removal of distillation products from the lower part of vertical coke ovens or the like
IPC: C10B27/00
Filed: 1932-11-29
Abstract: 390,778. Coke ovens. CROWTHER, R. W., 68, Northfield Way, and JENKINS & CO., Ltd., W. J., Beehive Works, both in Retford, Nottinghamshire. Nov. 29, 1932, No. 33780. [Class 55 (i).] To enable distillates to be withdrawn from, or steam to be admitted to the charge in a vertical coke oven or retort, spaced ledges are supported by the bottom door forming a free space in direct communication with the lower part of the charge. The door 2 has bolted to it a series of sections each having a base 7, archlike vertical webs 8, and horizontal webs 9 arranged to overlap to an extent to prevent fuel from entering the free space 12 below. This space 12 leads to a gas outlet pipe 13, and affords also means for supplying steam from nozzles 14.
Patent GB-1150906-A (GB)
Title: Improvement relating to Screened Ferrite Elements
Inventor: BRYCE CLEMENT
IPC: H01B1/16
Filed: 1966-07-27
Abstract: 1,150,906. Coated ferrite element. MULLARD Ltd. 27 July, 1966, No. 33785/66. Heading B2K [Also in Divisions Cl and H1] A ferrite element e.g. a memory core, is coated with a non-magnetic metal-containing vitreous layer. The coating may be applied from a suspension of a glass powder and a metal powder in an organic solvent, and then fired. In the Ex., a Mn Zn ferrite core was formed and sintered in O<SP>2</SP>-N 2  at up to 1340C, then heated to 120-160C and dipped in a suspension containing 50-60% Ag, 4-9% lead borosilicate glass, and 2-4 % binder, e.g. butyl methacrylate or polyvinyl acetate, in a solvent, e.g. butyl acetate or ethylene glycol monoethyl ether. Three layers were applied, each being dried, e.g. in a stream of air. The element was then fired at 750-950C., in air.
Patent GB-803394-A (GB)
Title: Improvements in or relating to sewing machines
IPC: B01J8/06
Filed: 1955-11-25
Abstract: 803,394. Sewing machines. MESSERSCHMITT, A. G. Nov. 25, 1955 [Nov. 25, 1954; July 13, 1955], No. 33932/55. Class 112 [Also in Group XXIV] Needles, shifting laterally; feeding work. In a zig-zag sewing machine the centre line of the stitch the lateral swing of the needle, or the length of stitch is controlled by a plurality of cams each of which has its own follower, and the latter may be selectively engaged singly or in any desired combination to produce the desired result. Fig. 3 shows two sets of cams 14...19, 21...24, arranged on sleeves 13, 20 mounted between the driving axle 7 and bearing pins 11, 12 which may be pulled out to enable the sets shown to be exchanged for other sets. Fig. 4 shows two co-operating sets of followers 39...44, 52...55 pivoted on axles 38 in arms 35, 36 pivoted on an axle 31. Fig. 5 shows followers 39, 40 in operative and inoperative positions respectively, the spring loaded plate 45 retaining them in these positions by respective engagement with a notch and a curve in the edges of the follower. Movement of the arm 35 is transmitted to the needle-bar gate by a link 37. Movement of the arm 36 is transmitted by a rope 61, Fig. 7, to a feed adjuster arm 66. The lever 65 is slidably mounted on an axle 62 to which the feed adjuster arm is rotatably fixed and on which a manually adjustable lever 70 is rotatably mounted. The lever 70 has an integral steep pitch screw 71 on which is slidingly mounted a guide 73 connected by a bar 74, engaging a slot 76 in the lever 70, to a bracket 75. Pins 69, 77 on the lever 65 engage respectively a slot 67 in the feed adjuster arm 66 and the guide bracket 75. The position of the guide bracket can be varied by an adjusting nut 72 on the screw 71 so as to alter the depth of engagement of the pin 69 in the slot 67 and thence the feed. Further the nut can be screwed in to disengage the pin and slot and allow the lever to rotate idly, the end of the bar 74 engaging a slot 68 in the feed adjuster arm for manual adjustment of the feed. In Fig. 8 the bar l connected to the needle bar gate is pivoted to arms a pivotally carried on an axle f which also carries the spring loaded cam followers e. These followers abut a surface h<SP>1</SP> or h on tumblers d pivotally mounted on a shaft c mounted in the arms a. The full lines and the chain dotted lines show respectively the operative and inoperative positions of the tumblers and followers.
Patent GB-788684-A (GB)
Title: Improvements in electrical resistors
IPC: H01C1/14
Filed: 1955-11-28
Abstract: 788,684. Fusible cut-outs; ohmic resistors. CLAROSTAT MFG. CO., Inc. Nov. 28, 1955 [Nov. 29, 1954], No. 34008/55. Classes 37 and 38 (1). A plug-in type wire-wound resistor comprises a flexible resistance element covered by a flexible insulating sleeve the body extending in a curve, terminals at its end are spaced in parallel relationship to each other so that they fix into sockets mounted on a supporting plate of insulating material. The resistor is arranged so that if an excessive current is passed through it, it fuses and protects the circuit to which it is connected. Figs. 2, 3 and 5 show a flexible protective resistor of this type in which a wire resistance element is wound around a core 11 enclosed within a sheath or tube 12 which are both preferably of glass fibre material. The sheath 12 terminates short of the ends of core 11 so that the wires at the ends are exposed and contact is made to the end terminals. The bore of the portion 14 permits the wire to make contact with its inner surface the portion 15 having a diameter such that the sheath also may be accommodated within it. Alternatively at the junction of the sheath portions 14 and 15 there may be a constriction 16 as shown at the bottom of Fig. 5 so that a very firm contact is made between the solid plug 13 and the resistive element 10. As shown in Fig. 2, an insulating strip 20 is mounted by a tab 21 and strips 23 of metal are secured to the insulating plate 20 and have their upper ends bent so as to form sockets into which the end terminals 13 of the flexible resistor may be inserted. The portions 18 of the sockets are preferably knurled so as to make firm engagement in the sockets. Contacts to the resistor may be made by means of metal tabs 26. The end zones of the resistance have relatively high heatdissipating characteristics so that if a large surge current passes through the resistor fusing will normally occur in the middle portion. The core material 11 and the sheath 12 are made of non-combustible material.
Patent GB-1048544-A (GB)
Title: Improvements in or relating to fluidised bed equipment
Inventor: COOPER CHARLES EDWIN BERTRAM
IPC: F25D13/06
Filed: 1964-08-21
Abstract: 1,048,544. Pneumatic conveyers. INDUSTRIAL HEAT EXCHANGERS Ltd. Aug. 17, 1965 [Aug. 21, 1964], No. 34215/64. Heading B8A. [Also in Division F4] Apparatus for cooling or dehydrating materials while fluidized especially food products, e.g. beans, peas, grain and meat and fish products comprises a cylindrical casing 2, a coaxial inner cylinder 14 in which is mounted an axialflow fan 10, upper and lower covers 4, 5 and a fluidized bed support 19 extending completely around the annulus with inlet and outlet means for the material being treated. The fluidized bed support has concentric partitions 20 and is inclined from the inlet to the outlet. Finned cooling coils 23 are located beneath the bed support and further cooling coils 30 beneath the fan, the coils being of semicircular form extending between headers. The fan 10 blows air downwardly over the cooling coils 30 and upwardly in the annular space 18 through a demister pad 29, over the cooling coils 23 and through the bed support 19 to fluidize and treat the material on the bed and cause it to pass from the inlet to the outlet. The coils 30 are defrosted by antifreeze solution supplied by a ring main 33, the solution passing to a reservoir 35 with outlet pipe 36. The fan 10 is of variable pitch. A number of independent refrigerator coils may be spaced around the air passage 18 and supplied with refrigerant by ring mains.
Patent GB-173228-A (GB)
Title: Apparatus for injecting and spraying fuel in internal combustion engines
IPC: F02M67/12
Filed: 1921-12-20
Abstract: 173,228. Dujardin et Cie. Dec. 20, 1920, [Convention datel. Cylinders receiving liquid fuel.-Steam for use in place of compressed air as an injection medium is generated in the space 3, situated within the combustion chamber, whence it passes to the chamber 5, at the back of the valve 6 controlling the spraying orifice. Water is supplied by a pump through the passage 1, and fuel through the passage 8. The device is applicable to internal-combustion turbines.
Patent GB-1046019-A (GB)
Title: Improvements in or relating to a machine having a rotor
Inventor: BROWN JAMES
IPC: F04F13/00
Filed: 1964-08-21
Abstract: 1,046,019. Pressure exchangers. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Aug. 12, 1965 [Aug. 21, 1964], No. 34356/64. Heading F1N. A pressure exchanger, Fig. 1 (not shown), comprises a cell ring 1 rotatable between end plates 4, 10 maintained at a substantially constant distance from the adjacent end of the cell ring by bearings 18, 19, 21 and provided with telescoping tubular extensions 3, 9 which allow the unsupported end plate 10 and its extension 9 to slide with respect to the fixed end plate 4 to accommodate expansion of the cell ring 1. The cell ring 1 has stub shafts 17, 20 rotatable respectively in spaced bearings 18, 19 in the end plate 4, and in the bearing 21 surrounded by resilient material 22 mounted in the end plate 10. The telescoping extensions 3, 9 of the end plates 4, 10 have contacting surfaces 12, 13 and in a modification one or both of the surfaces 12, 13 is replaced by a deformable element connecting the two extensions and able to maintain them co-axial but capable of permitting axial movement therebetween. The deformable element may be in the form of an annulus having an annular corrugation or alternatively in the form of three equi-angularly spaced flexible strips extending radially between the extensions. The bearing 21 need not be resiliently mounted.
Patent GB-343750-A (GB)
Abstract: 343,750. Totalizators. WARD, T. E., of Lightning Automatic Totalisator Co., Watling Street, Radlett, Hertfordshire. Feb. 24, 1930, No. 6050. [Class 106 (i).] A ball-releasing mechanism comprises a frame F mounted on the ball-supply tube C and provided with guides for a plate L carrying a pair of spaced arms M, N, adapted to pass through slots into the tube. A spring Q encircling a rod K connecting lugs on the frame and plate respectively, tends to force the plate to the left, Fig. 1, in which position the column of balls rests on the arm M. By energization of a solenoid W the bell crank U is rocked to force the plate to the right whereupon the lowest ball falls and the arm N temporarily sustains the column. The device may be arranged for more than one ball to be released at each operation.
Patent GB-1271454-A (GB)
Title: Method for detecting and measuring the concentration of substances in air or other fluid
Inventor: GRANDJACQUET LUCIANA
IPC: G01N15/06
Filed: 1969-07-08
Abstract: 1,271,454. Detecting particle concentration in gas. L. GRANDJACQUET. 8 July, 1969 [8 July, 1968], No. 34423/69. Heading B1T. [Also in Divisions Gl and G4] In the measurement of the concentration of a particular substance carried by, or contained in, air or other fluids, by passing the fluid through or over a filter medium to cause a change in a physical property of the filter medium or of a substance carried thereby, which change is proportional to the amount of the substance intercepted, the change is sensed photoelectrically (e.g. by monitoring the reflectivity or transmisivity of the filter medium) and every time a predetermined level of optical density is attained, either the filter medium is replaced by a fresh filter or a fresh portion of the same filter strip is introduced. In this way, the concentration of the substance in the fluid may be determined in terms of the number of times the predetermined level is attained (i.e. the number of fresh filters or filter strip portions used) for a predetermined quantity of fluid or a predetermined time. Typical applications are: detection of solid (carbon &c) particles in the atmosphere by deposition on (and resultant blackening of) a white filter; detection of concentration of constituent of a gas by reaction of constituent with chemical carried by filter; measurement of solid particles in air by colouring deposited particles with chemical contained in filter.