baber/WOPTO huggingface dataset:
Patent GB-763068-A (GB)
Title: Fluid control valve
IPC: B60S5/04
Filed: 1954-08-16
Abstract: 763,068. Valves. TURNER, W. Aug. 16, 1954 [Aug. 19, 1953], No. 22883/53. Class 135. In a fluid-flow control valve comprising a casing housing endwise-disposed sleeves and sealing rings and a valve member slidable therein having coaxial blind bores adapted to be put into communication with each other on movement of the valve member against a spring, the valve member projects from both ends of the casing for attachment in a pipe line, one exposed end carrying a coil spring against which the valve member is moved by a pull on its other exposed end. As shown, two such valves are housed in parallel bores 10, 11 in a common casing 14. The bore 10 houses sleeves 22, 23 and sealing rings 19, 20, 21 and a valve member 12 which on leftward pull against a spring 30 connects a compressed air supply at 24 to an inflatable tyre at 25 through axial bores 27, 26 and radial ports 29, 28. The bore 11 houses sleeves 43, 44, 45 and sealing rings 39 ... 42 and a valve member 13 which on leftward pull against a spring 30A connects the tyre to a pressure gauge at 34 through axial bores 46, 47 and radial ports 48, 49. On further leftward movement of the valve member the tyre may be connected to the atmosphere through the bore 46 and radial ports 50.
Patent GB-887216-A (GB)
Title: Improvements in or relating to the manufacture of boards or laps
Inventor: HOOD NORMAN ROY
IPC: D21F5/00
Filed: 1959-07-03
Abstract: 887,216. Drying boards or laps. BRITISH PAPER & BOARD INDUSTRY RESEARCH ASSOCIATION. June 30, 1960 [July 3, 1959], No. 22942/59. Class 34(2) A method of drying boards or laps of cellulosic pulp comprises dipping the boards vertically disposed into a fluidized bed, the solid particles of which are heated to the boiling point of water, and immersing them for a sufficient time to allow the water content of the boards to be reduced to the desired level. Apparatus for drying the boards or laps comprises a container having an upper, open mouth for insertion of the boards, and a lower porous inlet for gas such as air to fluidize solid particles in the container, the lower part of which container has heating means extending therethrough or therein. In a method of drying cellulose pulp board or lap 9, the boards are suspended in a fluidized bed of ballotini or sand of particle size 10 mm. to 0À1 mm. and heated by steam heated tubes 7 or electrical elements to a temperature between 100‹C. and 200‹C. The bed is fluidized in a tank 1 by compressed air fed to a pressure box 4 through a pipe 5 which passes to the tank through a porous or finely perforated bottom 3, the bed being maintained at a density sufficient to ensure that each board has sufficient buoyancy to minimise mechanical deformation thereof during the drying operation.
Patent GB-730761-A (GB)
Title: Improvements in or relating to the method of conducting the combustion phase of a reciprocating piston internal combustion engine
IPC: F02B3/02
Filed: 1953-08-20
Abstract: 730,761. Admitting liquid fuel ; ports ; cycles. TEXACO DEVELOPMENT CORPORATION. Aug. 20, 1953 [Aug. 30, 1952], No. 22962/53. Classes 7(2) and 7(3). In a method of conducting the combustion phase of an engine having a compression ratio of at least 14 : 1 operating with high-velocity air-swirl, and injection of fuel into the air at one side of a diameter of the combustion space, wherein the injection of fuel is initiated 50‹-20‹ before T.D.C. into a localised portion of the air in a manner and at a rate coordinated with the air swirl rate and density to produce patch impregnation at a controlled fuel-air weight ratio of 0À04-0À08, and whereby the first increment of fuel forms a localised patch of combustible mixture which undergoes compression-ignition to provide a flame front, the step of continuing the fuel injection on each cycle in said controlled manner and at said controlled rate into succeeding increments of swirling air immediately in advance of the flame front whereby additional portions of mixture are progressively formed, and are ignited by the flame front and burned substantially as rapidly as formed. The inlet valve 14 embodies a shroud 18 which causes the incoming air to whirl around the cylinder 10 and by modifying the shape of the shroud and the air intake 16 the rate of whirl can be varied, the most suitable rate being between four to nine times the engine speed ; the air may alternatively be introduced through tangential ports, not shown. Fuel in a fan or cone-shaped spray is injected into the cylinder through a nozzle 22 that is directed down-stream and across the whirling air to impregnate a localised segment of air firstly at a fuel-air weight ratio of 0À04-0À06 and then later at a ratio of 0À06-0À08 ; the fuel injection commences 50‹-20‹ before T.D.C. and is continued for one complete air whirl, i.e. 60 degrees of crankshaft rotation. For reduced load conditions the duration of injection is decreased. Specification 596,846 is referred to.
Patent GB-1490948-A (GB)
Title: Process for the preparation of azomethines
IPC: C07C251/20
Filed: 1976-06-03
Abstract: 1490948 Preparation of imine compounds BAYER AG 3 June 1976 [6 June 1975] 22973/76 Heading C2C Azomethine derivatives of the general formula in which R represents hydrogen or an alkyl or alkoxy radical, m is an integer of from 1 to 4, and the m radicals R are identical or different, comprises effecting a condensation of cyclohexanone and a primary aromatic amine of the formula in the presence of an acid ion exchanger. The process may be carried out under reduced pressure.
Patent GB-615183-A (GB)
Title: Improvements in scale reading devices for instruments for measuring angles
IPC: G01C1/06
Filed: 1946-08-01
Abstract: 615,183. Surveying instruments. SOC. D'OPTIQUE ET DE MECANIQUE DE HAUTE PRECISION. Aug. 1, 1946, No. 23011. Convention date, Oct. 18, 1943. [Class 97 (ii)] An optical system for reading the diametrically opposed graduations of a circular scale of a theodolite or like surveying instrument is characterized by the provision of a..single translationally movable, deviating member, whereby fractional parts of the angular reading may be measured. Light rays from the two diametrically-opposed graduations of the glass scale 1, Fig. 3, pass through lens and prisms systems 2, 3, 4, 5, 6, 10, 8 and 2<1>, 31, 41, 5, 6<1> 10, 8 to the eye-piece 9, Fig. 1, in which the two real images of the graduations formed on either side of the vertical edge 7 of the prism 8 are viewed. The optical paths are so arranged that the increasing directions of the images of the graduations are in reversed relationship. In order to read the fractional parts of the angle being measured the deviating prism 10 is moved until the images of the two graduations separated by 180 degrees coincide when the fractional part may be read off on a glass scale 11, viewable in the eye-piece 9, and which is attached to and moves with the prism 10. Prisms 10 and 8 are such that movement of prism 10 causes both images to move in the increasing sense of their numbering. By rotation of a prism 18 the graduations of the vertical scale 13 may be read off in a similar manner. A modification in which the prism 8 is formed of two prisms with silvered faces is described.
Patent GB-680745-A (GB)
Title: Improvements in or relating to sheet metal drawing presses
IPC: B21D24/12
Filed: 1950-09-20
Abstract: 680,745. Cupping. CLEARING MACHINE CORPORATION. Sept. 20, 1950 [Oct. 19, 1949], No. 23052/50. Class 83 (iv). A cupping press includes a workclamping slide and a draw slide, both on the same side of a bed and movable relatively thereto by linkages operated by crank means and a shiftable pivot member interconnecting the clamping slide linkage and the draw slide linkage. The bed 2 carries a die 79, Fig. 1, with which co-operates a work-holding ring carried by an outer slide 38 reciprocated by links 37 and a die 80 carried by an inner slide reciprocated by links 52. The slide 38 has external guiding surfaces 91, Fig. 2, engaging guides 90 carried by the frame of the press and also internal guides '96, 97 co-operating with external guides 95, 98 on the inner slide which operates within an opening in the outer slide. The position of the inner slide relatively to its operating links 52 is adjustable by screw-and-nut mechanism driven from a motor 99 carried on the slide and similarly the outer slide is adjustable relatively to the links 37 by means of a motor 119 geared to nuts on vertical screws secured to the upper ends of the links. Beneath the bed 2 two parallel horizontal shafts 12, 21 geared together so as to rotate at the same speed, but in opposite directions are driven from a main motor 9, Fig. 5, through belt 5 and clutch 122. The shaft 12 carries gears 13, 16 which drive gears 23, 24 rotatably mounted on a shaft 22 and secured to eccentrics 28, 29 whose straps 32, 33 are coupled to the links 37 at one end of the outer slide 38, the other end being similarly actuated from the shaft 21. Other gears 39, 40 with eccentrics 43, 44 also mounted on the shaft 22 and driven by shaft 12 are coupled to the links 52 at one end of the inner slide, the other end being similarly operated from the shaft 21. Each connection from an eccentric strap such as 32 to an outer slide link 37 comprises a rocker-arm 54 pivoted at 55 and connected at one end to the strap 32 and at the other to another rocker arm 60 through a link 58. A link 63 connects rocker arm 60 to rocker arm 65 which is connected by a link 68, Fig. 9, with a bell-crank 70 pivoted at 71 to the press frame and secured by a pin 72 with the lower end of the link 37. The lower end of each inner slide link 52 is secured by a pin 76 with one end of a bell-crank 74 which is pivoted to the pin 72 and coupled at its other end to the eccentric strap such as 47. The actuating mechanisms of both slides are thus interconnected by the pins 72. In operation both slides move down until the work-holding ring engages the blank 78, when the outer slide enters upon a dwell period while the inner slide continues to move down until the die 80 has drawn the blank and moved up to clear the work, after which both slides return to their upper position. In a modification, the bed is above the slides and the blank carried up into contact with the die 79 by the clamping slide.
Patent GB-902038-A (GB)
Title: Spring coiling machine
IPC: B21F3/02
Filed: 1959-07-06
Abstract: 902,038. Coiling. TORRINGTON MANUFACTURING CO. July 6, 1959 [Aug. 4, 1958], No. 23179/59. Class 83 (4). A spring-coiling machine having wire fed thereto by rolls driven from an oscillating gear segment has means for effecting exactly one rotation of a cam-shaft within each successive period of time required for a predetermined integral plurality of sequential segment oscillations and cut-off mechanism operable by said cam-shaft once during each rotation thereof so as to cut the wire upon the completion of each spring coiled from the wire fed during the corresponding plurality of sequential segment oscillations. Wire is fed by feed rolls 22, 24, 26 and 28 over or under an arbor 104 around which it is deflected by a coiling point 106 to form a coil whose pitch is determined by pitch tool 110 which longitudinally deflects each coil after it is formed. The feed rolls are driven intermittently from a shaft 62 itself driven, through a unidirectional clutch 82, from a gear 80 oscillated by a gear segment 74. This is oscillated by an adjustable crank-pin 86 on a gear 68 driven, through a clutch 90, by a driven shaft 64 and engaging a radial groove 84 in the gear segment. A cam-shaft 118 is rotated one revolution, for a plurality of oscillations of the gear segment 74, from a gear 120 integral with the gear 68, gear 124, Fig. 3, sleeve 266, gears 270, 276 and gear 278 which is secured to the shaft 118. A cam 140 on the shaft 118 depresses a link 132 to rock longitudinally adjustable shafts carrying cutter heads 112, 114 to cut-off the coiled spring from the wire supply. The coiling abutment 106 is carried by an adjustable holder 224 and, to vary the diameter of the spring while coiling, is moved by a cam 258 (not shown), on the shaft 118 through a link 244 and bell-crank. The pitch tool 110 is adjustable and may be moved during coiling, to vary the pitch of the spring, by a cam 204 (not shown) through a link and bell-crank. An alternative means to rotate the camshaft 118 includes, Fig. 11, a one-revolution clutch 290 actuated by a bevel-ended lever 308 rocked by a solenoid 320 which may be energized by a counting device after a predetermined number of oscillations of the gear segment 74. Alternatively, the solenoid 320 may be energized when the end of the coiled spring supported in a trough 334, Fig. 19, engages a contact 372. One wall 350, Fig. 20, of the trough 334 is swung away to allow the completed spring to drop, by a solenoid 370 energized by a switch closed by the severing mechanism. The machine may coil a spring of constant diameter but with tapering ends. U.S.A. Specifications 2,119,002 and 2,820,505 are referred to.
Patent GB-907862-A (GB)
Title: Improvements in backing members or disks for abrasive sheets
Inventor: HACKETT DONALD PAUL
IPC: B24D9/08
Filed: 1961-06-27
Abstract: 907,862. Rotary abrasive tools. PLYMOUTH PRODUCTS CORPORATION. June 27, 1961, No. 23184/61. Class 60. A disc of abrasive sheet material is mounted on a driven backing member comprising a number of radial arms or ribs 24 projecting from the face of a thin sheet-metal disc 20, Figs. 2 and 5, or having the arms 24 unconnected by segmental portions, Fig. 8, in both embodiments the abrasive sheet 26 is unsupported between the arm airs so that cooling air reaches its back surface. In the embodiment of Fig. 2, the segmental portions 40 of the backing member 20 have apertures 44 for the admission of air to the space between the member and the back of the abrasive disc 26 which is held by a screw-head 36 engaging the centre of the disc in a recessed portion of the member 20. The ribs 24 may be of flat or curved cross-section and the outer edges 22 of the segmental portions 40 may be scalloped. In the embodiment of Fig. 8, the arms are of curved cross-section; they may be joined at their outer ends by integrally formed flat arcuate strips forming a peripheral annulus.
Patent GB-204065-A (GB)
IPC: A24D3/00
Filed: 1923-09-18
Abstract: 204,065. Universelle Cigarettenmaschinen-Fabrik J. C. M³ller & Co. Sept. 18, 1922, [Convention date]. Paper tubes. - In coiling paper tubes for use as mouthpieces for cigarettes, the mandrel shaft is given an intermittent motion in one direction of rotating by means of an oscillating sector. The mandrel a is secured to a bearing tube b mounted in a bearing d, and an extension e of the shaft is splined to the tube so as to rotate with it but is adapted to have relative axial movement. This extension e is mounted in a sliding bearing f reciprocated by a lever g and cam k. The operating sector o is oscillated by a cam m and during one direction of motion drives a wheel r on the mandrel extension e, and during the other semioscillation drives a wheel s on a countershaft which is also mounted in the sliding bearing f and which gears continuously with the mandrel shaft through gears u, p.
Patent GB-634879-A (GB)
Title: Rubber dispersions and the use thereof
IPC: C08C19/10
Filed: 1947-08-23
Abstract: A dispersion of rubber in a hydrated sulphuric acid medium containing a surface active substance which does not undergo electrolytic dissociation in aqueous solution, exemplified by a polyethylene glycol ether of formula RO(C2H4O)nH, where R is a straight chain alkyl radical of 8-20 carbon atoms and n is at least 4, has a 60-85 per cent sulphuric acid content.  In preparing the dispersion, an aqueous acid is added to an aqueous dispersion of rubber, e.g. natural rubber latex, an aqueous dispersion of an unsaturated synthetic rubber which is a polymer of a conjugated diene or a copolymer of such a diene with a minor amount of another unsaturated compound, or an aqueous dispersion of reclaim rubber, containing the surface active substance, e.g. in the proportion of 2-5 parts per 100 parts of rubber, until a pH of less than 5 is reached, and concentrated sulphuric acid is then added until the sulphuric acid content is 60-90 per cent.  The rubber in the dispersion may be cyclized to the desired degree by heating, e.g. at 85 DEG C. for three hours, phenol being added before cyclization, if desired, may be oxidized by adding to the dispersion hydrogen peroxide, persulphuric acid, or a persulphate, or may be nitrosated by heating the dispersion with nitric acid or a nitrate.
Patent GB-615696-A (GB)
Title: Improvements in and relating to combined small hand pumps and sprayers
IPC: B05B11/00
Filed: 1946-08-07
Abstract: 615,696. Reciprocating pumps. CROMBIE, N. Aug. 7, 1946, No. 23383. [Class 102 (i)] A combined hand pump and sprayer wherein the pump tube a, carrying the piston, and nozzle c, is bent to form an oval loop b, the major axis of the loop being parallel to the axis of the pump tube.
Patent GB-1162785-A (GB)
Title: Electronic Musical Keyboard Instruments
Inventor: MACHANIAN WILLIAM VARAZTAD
IPC: G10H1/42
Filed: 1968-05-16
Abstract: 1,162,785. Electronic organs. WURLITZER CO. 16 May, 1968 [18 May, 1967], No. 23389/68. Heading G5J. An electronic keyboard musical instrument has an electronic rhythm percussion accompaniment system which comprises a white noise generator 32 feeding amplifiers 62 and 30 through normally reverse-biased diodes 34, 38 and 50, and a brush keyer 46 which is arranged to cause the diodes 34 and 38 to conduct and a cymbal keyer 56 which is similarly arranged to cause diodes 34 and 50 to conduct when selected keys of the keyboard are depressed. The voltage pulse initiated by switching one of the key switches 24 is passed through stop switches 26, which operate the various percussion effects, and on to one of the keyers 46, 56 or 74 depending upon which stop switch has been operated. A pulse passing to the brush keyer is amplified and appears as a positive pulse at the junction 40 which switches diodes 34 and 38 on to allow a noise signal from generator 32 to be passed briefly to the amplifiers. The cymbal keyer is operated in a similar manner by switching the diodes 34 and 50 on except that the key switch in this case is operated by one of the foot pedals of the organ and can be held on as long as required. The drum keyer 74 is also operated by a foot pedal, the positive pulse from the drum keyer switching on a drum generator 70, the output of which is passed to the amplifying system. A shimmer generator 64 is provided to give a more realistic sound to the cymbal tone, by amplitude modulating the output from the generator 32 at a frequency slightly below the audio range. This is achieved by selecting the difference frequency of two adjacent tone generators 22 and passing this signal to junction 60. Detailed circuitry of the apparatus is shown in Figs. 3a and 3b (not shown). The noise generator comprises a transistor (192) used as a diode and biased to its Zener point to produce a noise voltage. The drum generator comprises a phase-shift oscillator which is biased short of oscillation and is switched on only by a positive pulse from the drum keyer. The output from the tone generators 22 is taken, after being switched by the key switches 24 to a pre-amplifier 28, and is combined with the output from the various percussion effects and fed to an amplifier 30 and loud-speaker 18.
Patent GB-1219705-A (GB)
Title: Light source lamp for atomic light absorption analysis
IPC: G01J3/10
Filed: 1969-05-07
Abstract: 1,219,705. Discharge lamps; cathode materials and processing. HITACHI Ltd. 7 May, 1969 [10 May, 1968], No. 23391/69. Heading H1D. A hollow cathode 1 in a lamp for atomic light absorption analysis is formed by a close mechanical linkage of fine wires of a predetermined dimension consisting of a metal having a relatively high melting point, gaps between said fine wires being filled with a predetermined quantity of a metal having a relatively low melting point. The high melting point wires may be ribbons of Ni or Cu, 200 Á or less in thickness and 0À5 mm. or less in width which may be arranged regularly to form the hollow cathode or may be arranged irregularly and compressed e.g. by press-moulding to form the cathode. Gaps between the wires are then filled with an alloy of alkali metal elements or with Se, Te, P or As by evaporation, or with Zn, Cd, In, Tl, Sn, Pb, Sb or Bi by impregnation, or with a metal powder. Wires of high melting point may be twisted together, some of the gaps filled with relatively low melting point powder, and the remaining gaps impregnated with a metal having a lower melting point than the powder. The relatively low melting point metal may also be in the form of wire e.g. of Fe. The wires of relatively high and relatively low melting points may be twisted together and compressed and the gaps filled with an impregnated metal having a lower melting point. Impregnation should be carried out in an inert or reducing atmosphere and the cathodes should be outgassed before use. The cathode 1 is surrounded by a nickel cylinder 9 and is spaced from a ring anode 3 by a mica disc 6 and a steatite ring 7. The glass envelope 10 is filled with an inert gas such as argon and is provided with a quartz window 13. In a modified lamp (Fig. 10, not shown) an additional insulating disc is provided between the disc 6 and the anode 3.
Patent GB-911111-A (GB)
Title: Improvements in centrifugal fan assemblies
Inventor: GIDLEY KEITH EDWIN
IPC: F04D29/42
Filed: 1958-07-22
Abstract: 911,111. Centrifugal fans. BASS Ltd., JOHN. June 24, 1959 [July 22, 1958], No. 23441/58. Class 110 (1). A centrifugal fan comprises a casing in the form of an axially elongated duct, a partition dividing the duct longitudinally into an inlet side and an outlet side, and an impeller disposed within the duct to create flow of gas from the inlet to the outlet side of the duct by way of an aperture in the partition. The fan casing comprises a duct of rectangular cross-section and provided with flanges 17, 19 at the inlet end 13 and outlet end 15. A longitudinallyextending partition 21 comprises a central part 27 parallel with the top and bottom walls of the duct, and inclined end parts 29, 31 which provide a convergent inlet path and a divergent outlet path. The central part 27 has an arcuate edge 33 and an edge comprising an arcuate part 41 and a straight part 43. Plates 35 and 40 extend normal to the respective edges 33 and 41, 43 and between the top and bottom walls of the duct, but are apertured as shown for the flow of gas in the direction of the arrows, the central partition part 27 being provided with a circular aperture 51 for the same purpose. A baffle plate 45 has an initial part 47 substantially parallel with the side wall 9, and a final part 49 extending axially, to correspond to the outflow which is initially tangential to the volute 25 and then becomes substantially axial. The mounting plate 61 of the driving motor is bolted to the top wall of the duct, with the impeller depending through a hole in the top wall. The duct may be of polyvinyl chloride and the impeller may be of fibreglass.
Patent GB-280329-A (GB)
Title: Improved means of hinging and closing or securing the doors of pit trams, wagons andthe like
IPC: B61D19/00
Filed: 1926-09-23
Abstract: 280,329. Wright, A. L., and Smedley, F. I. Sept. 23, 1929. Pivoting a d j u s tments; sliding hinges. -For the doors of pit trams and wagons the knuckles c<1>, b<1> of the lower hinges c, bare cut-away so that the parts c<2>, b<2> may be disengaged when the door a is lifted, a projection e on the upper hinge d being adapted to fit between a recess f<2> in a bracket f, Fig. 4, or, as in the case of double doors, to engage with the upper hinge of the other door, Fig. 1. Alternatively, the plate d may be slotted at its end to engage with a bolt on this door when the door a is closed. As a further security, the door when closed may engage behind an angle-piece at its lower edge. A spring l serves to keep the parts c<2>, b<2> of the hinge in engagement.