baber/WOPTO huggingface dataset:
Patent GB-522953-A (GB)
Title: Improvements in cutting tools for plate shears
IPC: B23D35/00
Filed: 1938-12-20
Abstract: 522,953. Shear-blades. FABRIKSAKTIEBOLAGET HALDATAXAMETERN, and OSTBERG, K. G. Dec. 20, 1938, No. 37064. [Class 83 (iv)] Shear-blades are formed of square cross-sectioned shanks with cutting edges limited by end surfaces 8, 9 and side surfaces 12, 14. The surfaces 8, 9 are inclined to form cutting edges 2, 4 which converge in the direction of feed and the side surfaces 12, 14 are curved to diverge at an increasing angle in the same direction. The surfaces 12, 14 may be convex piano convex or concave and convex. The longitudinal edges of the tool are rounded.
Patent GB-1395930-A (GB)
Title: Diffuser
IPC: F04D29/44
Filed: 1972-08-09
Abstract: 1395930 Centrifugal compressors GENERAL ELECTRIC CO 9 Aug 1972 [24 Aug 1971] 37091/72 Heading F1C A diffuser for a centrifugal compressor comprises circumferentially spaced passages 34 extending in a generally radially outward direction through an annular 30, the passages being of circular or other curvilinear cross-section over most of their length and altering to a rectangular crosssection over a short transition region at their outer ends. The transition region is bounded by convergent fusto-conical surfaces 48, 48' which are scalloped as shown, fusto-conical discs 50, 50' being attached, as by brazing, to the surfaces 48, 48', the outer edges 52, 52' of the discs 50, 50' co-operating with axial edges 40 to define the rectangular exit cross-section. The transition portions 46 of the passages 34 may be of substantially constant cross-sectional area, the initial portions 44 of circular cross-section increasing in cross-sectional area to provide the diffusion. The centre lines 47 of the passages 34 may be curved and may be inclined at an angle to the transverse radial plane.
Patent GB-780643-A (GB)
Title: Improvements in the production of 1.2-epoxycyclo-octane
Filed: 1955-12-29
Abstract: 1 : 2-Epoxy-cyclo-octane is made by reacting cyclo-octene at 15 DEG to 60 DEG  C. with a mixture of 1.05 to 2.0 mols. of aqueous hydrogen peroxide per mol. of cyclo-octene and such amount of formic acid that a homogeneous solution is not formed, e.g. 0.3 to 2.0 mols. per mol. of cyclooctene.  An example is given.
Patent GB-1218069-A (GB)
Title: Improved bearing arrangement for spinning spindles
IPC: F16C27/00
Filed: 1968-08-05
Abstract: 1,218,069. Spindle bearing arrangement. SPINDEL-MOTOREN-UND MASCHINENFABRIK A.G. 5 Aug., 1968 [29 Aug., 1967], No. 37222/68. Heading D1D. [Also in Division F2] A spindle bearing casing 4 is resiliently held in a ring 17 by a bearing arrangement which includes at least one flexible element 6, 10 and a plate 9 which is adjustably fastened to the ring 17 by screws 15 passing through larger diameter bores 18 to allow for adjustment in the horizontal direction. The casing 4 is also held at a distance from the ring 17 by a component rail 24 which by adjustment of nuts 28, 29 can exert an axial force on the casing 4. The casing may be secured to the rail 24 through a flexible, peripheral slotted tube 23 which is secured to the casing (Fig. 1). Alternatively (Figure 2), the casing is connected via a rubber insert 44 to a rod 46 which is adjustably secured to the rail 24. A weight 31, (41) is fixed to the lower end of the casing, its inertia producing forces acting against the lateral motion of the lower end of the casing. The spindle shaft is supported in bearings in the casing, one of these bearings being yieldably connected to the casing.
Patent GB-1189588-A (GB)
Title: Improvements in Hoists.
IPC: B66B9/02
Filed: 1968-08-05
Abstract: 1,189,588. Platform hoists; lifts. PROJETS ET REALISATIONS DE MATERIAL " PROMAT " (S.A.R.L.). 5 Aug., 1968 [29 Aug.. 1967], No. 37240/68. Headings B8H and B8L, A hoist comprises a cabin 1 driveable up and down an upright 13 by stops 9, 91, 10 on a twin flat link roller chain 5, 6, 7, engaging supports 11, 12 on the upright 13 as the chain formed in a loop between double sprockets 4, 7<SP>1</SP> on the cabin, is driven by a motor 2 coupled to the sprocket 4. The stops, spaced along the chain to synchronize with the positioning of the supports on the upright, each comprise a threelegged stirrup member supporting an overlength spindle which passes through the pair of chain rollers and supports a roller bearing at each end. Each of the supports 11, 12 includes two spaced members on which the roller bearings are supported. The return sprocket 7<SP>1</SP> and an intermediate sprocket 14 are adjustable to take up slack in the chain. The sprocket and chain drive assembly is positioned at one side of the cabin and at this side are also provided rollers which run along faces of the upright 13 at right angles to each other, for horizontal stability.
Patent GB-800491-A (GB)
Title: Improvements in or relating to turbine rotors for gas-turbine engines
Inventor: HAWORTH LIONEL
IPC: F01D5/06
Filed: 1954-12-24
Abstract: 800,491. Turbine rotors for gas turbine engines. ROLLS-ROYCE, Ltd. Dec. 14, 1955 [Dec. 24, 1954], No. 37430/54. Class 110 (3). A turbine rotor disc structure for a gas turbine engine for carrying a row of rotor blades comprises at least three disc members, the members being secured together in the form of a stack, at least the two end disc members being of dished frusto-conical form over at least the inner part of their radius. The disc members are formed with a first series of abutment surfaces adjacent their inner radius and with a second series of abutment surfaces between their inner radius and their outer periphery, first and second bolting means being provided to clamp the disc members together over their abutment surfaces. The number of discs is such that if in service, one disc should fail, the load to which the other discs would be subjected would be unlikely to cause them to fail. The rotor shown is a two-stage turbine rotor of a gas turbine engine and comprises a high-pressure rotor structure 11 and a low-pressure rotor structure 12, each of the rotor structures comprising assemblies of five disc members 11a ... 11e and 12a ... 12e respectively. The discs each have a central aperture 13, an axiallythickened portion 14 adjacent the aperture, an axially-thickened portion 16 outwardly of the portion 14, and an axially-thickened rim 15 formed with slots in which the blade roots are mounted. The high-pressure rotor discs are in addition formed with axially-thickened portions 19 intermediate the thickened portions 14, 16. The centre discs 11c and 12c of the two rotor disc structures are of plane form while the remaining discs are of frusto-conical form between the axially-thickened portions 14 and 16. The highpressure rotor discs are secured together and to a flange on the main shaft 10 by means of a ring of bolts 20, some of the bolts 20a also passing through a flange 29 on a ring 30, the flange 29 being cut away in the way of the remaining bolts 20b. The high-pressure rotor discs are also secured together and to the flange 32 of a ring member 33 by means of a ring of bolts 21. The low-pressure rotor discs are similarly secured together and to the flanges 31 and 36 on the ring members 30 and 33 by means of rings of bolts 22, 23. The bolts 20b, 22b and 23b which do not pass through the flanges on the ring members 30 and 33 hold the discs together upon assembly and dismantling. Cooling fluid such as air enters the space 40 around the tubular member 41 and flows through the spaces 37, 38 between adjacent rotor discs, finally escaping into the working fluid stream. The axially-thickened portions 14, 16 and 19 may be either annular lands or series of circular bosses.
Patent GB-627525-A (GB)
Title: A new or improved process and apparatus for the purification of water
IPC: C02F3/10
Filed: 1946-12-20
Abstract: 627,525. Purifying water. ELLIS, E. H. Dec. 20, 1946, No. 37553. [Class 46] The water (e.g. swimming-pool water) to be purified is caused to percolate at a controlled rate through a series of filter beds of zeolitic material containing protozoa to effect re-oxygenation and remove impurity. In the arrangement shown, water is withdrawn from the swimming pool by a pump H through a strainer and delivered to a copper tray J above the first bed D of the first chamber A of the filter, whence it passes through two beds D and E to the first sump G. Copper or silver rods F, serving to separate the beds, check the growth of algae by oligodynamic action. From the first sump G the water is withdrawn through the valve L to chambers B and C in turn. finally returning to the swimming pool. The beds may be continuously or intermittently aerated by an air pump or blower through a pipe installation not shown. Inlets M are provided for cleansing the beds by backwashing. The beds may be constructed from porous blocks made up of any of the normal zeolites in granular form mixed with a binding material. The protozoa, for example Vorticella, Stentor, and Paramecium, may be introduced by passing dirty water through the beds or, preferably, by firstly introducing prepared cultures into the water.
Patent GB-1038217-A (GB)
Title: Improvements in a multi-stage speed change gear
IPC: F16H3/089
Filed: 1963-09-25
Abstract: 1,038,217. Securing gear-wheels on shafts; change-speed gear. SUZUKI MOTOR CO. Ltd. Sept. 25, 1963 [Oct. 8, 1962], No. 37796/63. Headings F2D and F2U. Balls 14, or rollers, between the internal splines of gear-wheels B, C and splined input and output shafts 1, 2 of a motor car, cycle &c. change-speed gear, facilitate axial sliding of the gear-wheels for the selection and establishment of the ratios. An engine shaft drives through a main clutch 3 to the shaft 1. With the gear-wheels positioned as shown, no ratio is established and the gear is in neutral. First ratio is obtained by sliding the splined gear C rightwards along the output shaft 2 to engage clutch dogs 11 in holes 13 in a gear a journalled upon the output shaft. Second ratio is obtained by sliding the splined gear C out of engagement with the gear a and instead engaging holes 10 at its other end with clutch dogs 12 integral with a gear b, itself journalled upon the output shaft 2 and meshed by the splined gear B on the input shaft 1. Third ratio is established by sliding the splined gear C out of engagement with the gear b, and into mesh with a gear C journalled upon the input shaft 1. The splined gear B is then slidden rightwards along the input shaft 1 to engage clutch dogs 7 at its end with clutch dogs 9 on the gear C. Fourth ratio is obtained by sliding the gear B leftwards out of engagement with the gear C and instead engaging clutch dogs 6 at its other end in holes 8 in a gear D, journalled upon the input shaft 1 and meshing a gear d fast with the output shaft 2. The balls &c. 14 sufficiently reduce the resistance to axial sliding of the splined gears B, C when the gearing is under load for ratio shifts to be established without concomitant disengagement of the main clutch 3.
Patent GB-344796-A (GB)
Title: Improved method for the purification of synthetic alcohols
IPC: C07C29/74
Filed: 1929-12-10
Abstract: Iron compounds present in synthetic alcohols prepared by the catalytic hydrogenation of oxides of carbon under pressure are removed by subjecting the impure alcohols to prolonged treatment with alkali, with or without stirring, at ordinary or raised temperatures. Advantageously the liquid is aerated either at the commencement of or throughout the treatment.  In an example, crude synthetic methanol is allowed to flow over solid caustic soda and then into a steel tank. A slow stream of air is passed while the tank is filling after which the mixture is allowed to stand for 5 days and is then distilled.  In the manufacture of formaldehyde by passing methanol vapour mixed with air over red hot silver gauze, the purification of the methanol by the above process prevents the rapid deterioration of the catalyst which results when crude methanol is employed.
Patent GB-1152672-A (GB)
Title: 11-Oxygenated-16-methylene-17alpha-alkoxy Steroids
IPC: C07J7/00
Filed: 1966-08-24
Abstract: 1,152,672. Progestational &c. compositions. MERCK & CO., Inc. 24 Aug., 1966 [30 Aug., ,1965], No. 37976/66. Heading A5B. [Also in Division C2] Pharmaceutical compositions comprise a progestational steroid of the formula (where R is C 1-3  alkyl; X is H or F; Y is H,. F, Cl or CH 3 , and is in the alpha position in 6,7-saturated compounds; Z is #-hydroxymethylene or carbonyl; and there is an optional #<SP>6</SP> double bond) and an inert non-toxic diluent, carrier or coating. They may also contain an estrogen, and, when in the form of an ointment, cream or lotion, an antibiotic or germicide. The optional presence of androgens is also referred to.
Patent GB-808237-A (GB)
Title: Improvements in or relating to reversible address plates or plate holders for shipping containers
IPC: B65D25/20
Filed: 1956-12-13
Abstract: 808,237. Labels. ZARGES, W. Dec. 13, 1956, No. 38112/56. Class 73 A reversible address label or label holder is mounted on the outside of a container and the arrangement is such that it can be locked in either of its two positions and can be unlocked only from inside the container. In one embodiment a reversible label plate 1, Fig. 2, is pivotally mounted at 3 to the cover 2 of a container and has at its free end a rivet 5 mounted for vertical movement in an aperture therein. The cover 2 has raised portions 6 formed with apertures 7 through which a rounded head portion of the rivet 5 may pass in either one or other positions of the plate 1. A spring 8 is centrally secured to the underside of the cover 2 so that an end portion 9 snaps over the lower head of the rivet 5 when this is pressed downwardly through the aperture 7. The spring 8 can be released from the rivet 5 only after removal of the cover 2. In another embodiment a label holder consists of two parallel plates 12, Fig. 4, of transparent material which form a pocket having one end closed by a metal strop 13 of U-section while the other end is adapted to be opened or closed by means of a U-section or angle-section metal strip 14. The strip 14 is either slipped over the pocket end or is pivotally mounted at one corner. A cut-out portion 16, Fig. 3, in each of the metal strips receives the stem 17 or 17<SP>1</SP> of a T-shaped member, the two arms 18, Fig. 3, of which are pivotally mounted in the strip. The free end of each stem 17 or 17<SP>1</SP> is provided with an annular groove, and the stem 17 is pivotally secured within an aperture in the container cover 21, another aperture also being provided through which the stem 17<SP>1</SP> may pass freely. A spring 20 located underneath the cover 21 is secured at one end in the annular groove of the stem 17 and is located by a small cover strap 22 so that its free end 23 is adjacent the second cover aperture. On passing the stem 17<SP>1</SP> through this aperture, the spring 20 snaps into engagement with the annular groove. If the pocket 12 is to be reversed, the spring 20 is disengaged from the stem 17<SP>1</SP> on removal of the cover 21 and the pocket 12 pivoted upwardly about the arms 18 of the lefthand T-shaped member which serves as a universal joint. The pocket 12 is then turned over about the stem 17 so that the position of arms 18 is reversed. The stem 17<SP>1</SP> is then turned back through 180 degrees and inserted in the cover aperture. In another form the label arrtangement may be self-contained, i.e., the member 2 or 21 may form abase plate which may be mounted on a container by rivets or bolts, the container having a small aperture underneath the portion 9 or 23 of spring 8 or 20.
Patent GB-1099916-A (GB)
Title: Sludge centrifuges
IPC: B04B1/14
Filed: 1966-08-26
Abstract: 1,099,916. Centrifugal separators. ALFALAVAL A.B. Aug. 26, 1966 [Aug. 27, 1965], No. 38416/66. Heading B2P. In a sludge centrifuge, the sludge level in the sludge space of the rotor 1 is indicated by means of an indicating channel 5 which leads from the sludge space inwardly towards the centre of the rotor into a paring chamber 8 provided with a first paring disc 10 connected to a duct which extends outside the centrifuge and which has inserted in it a pressure or flow sensing means for indicating the clogging of the opening of the channel 5 into the sludge space, an additional paring disc 9 being provided in the paring chamber 8 with its paring edge located radially outwardly of that of the first paring disc 10. As shown, the liquid to be clarified is fed into the separating space of the rotor via an inlet pipe 3 and a distributor 4. The clarified liquid is discharged via a channel 7 and an overflow 6. During normal operation, liquid also flows inwardly through the channel 5 to the paring chamber 8 from which it is continuously discharged by means of the paring disc 9 and returned to the separating space of the rotor via the distributor 4. The sensing means in the duct connected to the channel of the paring disc 10, in which no flow takes place but in which a column of liquid is built up by liquid from the chamber 8, then indicates a certain valve. When the opening of the channel 5 becomes clogged with sludge the flow in the channel ceases and, as soon as this happens, the disc 9 discharges rapidly a quantity of liquid corresponding to the level difference between the outer edges of the discs 9, 10, causing the column of liquid in the channel of the paring disc 10 to be rapidly discharged so that its influence on the sensing means ceases. This gives a rapid and distinct indication of the sludge level reached so that steps may be taken to discharge the sludge from the rotor.
Patent GB-1003585-A (GB)
Title: Improvements relating to microwave modulating and demodulating circuit arrangements
Inventor: GALPIN ROBERT KEITH PORTWAY
IPC: H03C1/48
Filed: 1962-10-11
Abstract: 1,003,585. Single sideband amplitude modulation; semi-conductor circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 2, 1963 [Oct. 11, 1962], No. 38557/62. Headings H3R and H3T. A Hall effect element having two pairs of electrodes lying along perpendicular directions is mounted in a cavity resonator in which a rotating microwave magnetic field is produced. The cavity may be excited in E110 mode by two waveguides feeding coupling holes 90 degrees spaced apart in the cylindrical wall of the cavity, and the two waveguides themselves coupled by a hole in a common wall, and only one waveguide fed by microwave energy so that the carrier energy is applied in quadrature phase to the two cavity input holes. If then modulation in quadrature phases is applied to the Hall device electrodes to produce a rotating modulation electric field in the same plane as the rotating microwave magnetic field then an output of either an upper or lower sideband of the microwave carrier may be taken from output electrodes of the Hall device, at right angles to both the other pairs of input electrodes, and used to form a probe 11 (Fig. 5) for launching the selected sideband (C+S) or (C - S) in a further waveguide 12. (C+S) or (C-S) is obtained dependent on the relative sense of the two rotations. The Hall device may be of cruciform shape. Alternatively, Fig. 7, a waveguide 14 with H01 mode produced by a probe 25 and with an off-centre hole 15 excites, due to the circular polarization of the magnetic field at the hole 15, an E110 resonance in a coupled resonator 13, i.e. produces a rotating magnetic field in the resonator and across a Hall element 18 in the resonator. If modulation in quadrative phases is applied to the Hall element to produce a rotating modulation electric field in the same plane as the rotating magnetic field, and either an upper (C+S) or lower C - S) sideband frequency is produced by the Hall output electrodes and this excites an E011 resonance in the axial length of the cavity, which is tuned to this by an adjustable screw 19 mounting the Hall device 18. The selected sideband is then taken off by a probe 26 from another waveguide 16 coupled by a hole 17 to the resonator. Microwave receiver. Fig. 7 may be used for television or radar SSB reception with received signal applied at probe 26 and carrier applied as before to probe 25. Two demodulated signals in phase quadrature are then derived from the Hall device pairs of electrodes and, after 90 degrees relative phase-shift at PS1<SP>1</SP> PS2<SP>1</SP>, added or subtracted at CC to give the received signal. Specification 941,619 is referred to.
Patent GB-357030-A (GB)
Title: Improvements in apparatus for conveying and handling goods particularly adapted for use in ships' holds
IPC: B62B5/00
Filed: 1930-12-22
Abstract: 357,030. Rolling appliances for loads. YRARRAZAVAL, J. G. DE ANDIA-, 44, Avenue des Champs Elysees, Paris. Dec. 22, 1930, No. 38603. Convention date, Dec. 26, 1929. [Class 78 (ii).] An appliance for facilitating the handling of a case M in a ship's hold comprises beams A, B, C which are connected only by cables 7, 9 and are supported by castors 2. The case rests on rollers 4 mounted in the beams, and is kept in place by removable stops 6 on the outer beams and by ropes secured at 5. The cable 7 connects the beams A, C, and may be wound on a shaft 8 on each beam. Cables 9 connect the beams A, C to the beam B and are wound simultaneously on a shaft 12.
Patent GB-1453181-A (GB)
Title: Apex seal for rotary engines
IPC: F01C19/02
Filed: 1975-09-19
Abstract: 1453181 Rotary positive-displacement fluidmachines CATERPILLAR TRACTOR CO 19 Sept 1975 [17 Jan 1975] 38665/75 Heading F1F [Also in Division C7] A rotary engine seal having different coefficients of thermal expansion at opposite edges is made either by:- (a) centrifuging in a mould powders having different coefficients of expansion and then compacting sintering and machining to final shape, or (b) compacting layers of powders having different coefficients of expansion in a mould, each layer being separated by a strip of paper and then sintering the compact and machining to shape. One of the powders may be iron or ceramic and the other may be stainless steel. The different coefficients of expansion eliminate bowing of the seal during use e.g. a Wankel I.C. engine at the piston apices.
Patent GB-1014618-A (GB)
Title: Improved connecting elements for use in suspension filing systems
IPC: B42F21/04
Filed: 1963-10-01
Abstract: 1,014,618. Suspension files. C. G. COWLING. Oct. 1, 1964 [Oct. 1, 1963], No. 38670/63. Heading B6E. Folders, drawings or the like are suspended from parallel spaced rails by means of elements 7 each comprising two thicknesses of material such as stiff card adhered to one another and formed with cranked slots 12 for engaging the bars, reinforcing strips 15 of steel or plastic being situated between the two thicknesses adjacent to the tongues 13 formed by the slots 12. The elements 7 may be separate parts attached to the folders or may be integral with the folders. The side edges of adjacent folders may be connected by channel-shaped members 50, Fig. 9 (not shown), engaging folded-over strips on the folder edges.
Patent GB-1200123-A (GB)
Title: Coating semi-conductors with nickel
IPC: H01L21/288
Filed: 1967-08-25
Abstract: 1,200,123. Coating semi-conductors. ROBERT BOSCH G.m.b.H. Aug.25, 1967 [Aug. 26, 1966], No.39206/67. Heading C7F. A semi-conductor such as Si is provided with a conductor electrode in a process comprising preheating and actuating the semi-conductor with an aqueous solution of HF containing ions of a catalytically active metal such as Au or Pd and having a pH of 4-5, and then depositing Ni on the activated surface by the chemical reduction of a nickel salt solution with boron hydride. The activating solutin is buffered with ammonium fluoride or urotropine N2 (CH2)6 and it may also contain methanol. The Ni is deposited from a solution of nickel chloride or sulphate containing boron hydride and the coated semi-conductor is heated above 500‹ C. in an inert gas. The Ni conductor is then deposited from a solution of nickel chloride and boron hydride after activation of the first layer with an aqueous HF solution saturated with nickel chloride. A further Au layer may then be deposited by chemical plating. The Si semiconductor to be coated may be partially covered with an oxide mask.