baber/WOPTO huggingface dataset:
Patent GB-1044910-A (GB)
Title: Preparation of purified aluminium nitride
IPC: C01B21/072
Filed: 1963-09-24
Abstract: In a continuous process for the selective roasting of carbon in impure aluminium nitride agglomerates containing at most 12% by weight of carbon, the agglomerates are introduced into a chamber through which they advance vertically by gravity and in which they maintain contact with one another throughout the entire filling height of the chamber.  In the chamber, which is thermally insulated from the external atmosphere, the agglomerates are brought into cocurrent contact with a hot gaseous mixture containing an inert gas or gases, for example carbon dioxide and/or nitrogen, and oxygen in a proportion at least equal to the stoichiometric <PICT:1044910/C1/1> amount needed for the combustion of the carbon. The oxygen content of the gas entering the upper part of the chamber is preferably between 1.7 and 10% by volume.  The agglomerates, which contact the gaseous mixture for a time at least sufficient for the complete combustion of their carbon content, are brought to a temperature of between 600 DEG and 800 DEG  C. by heat exchange with the gaseous mixture, the inert gas component of which maintains the temperature of the agglomerates below this upper limit.  The process may take place in furnace chamber 1, Fig. 1, having upper and lower parts 2 and 3, respectively, impure aluminium nitride being introduced through opening 4 from device 5 and purified aluminium nitride being discharged through opening 6 to device 7. Heated gaseous mixture is introduced by inlet pipe 8 supplied by gases heated in device 10, which is fed by ducts 11; gases leave the chamber by outlet pipe 9. Thermometer tube 13 is disposed in the chamber, at levels 14 and 15 of which the combustion process begins and ends, respectively.  In Fig. 2 (not shown), the gases leaving the lower part of the chamber are recycled to the upper part to take further part in the combustion process, a volume of oxygen, preferably in the form of air, at least equal to that consumed by the carbon being added to, and an equal volume of gas being withdrawn from, the gaseous mixture prior to recycling.
Patent GB-1207697-A (GB)
Title: A crab for a crane
Inventor: NONNEMANN WILLI
IPC: B66C13/16
Filed: 1968-08-06
Abstract: 1,207,697. Overhead travelling cranes. CARL SCHENCK MASCHINENFABRIK G.m.b.H. 6 Aug., 1968 [18 Aug., 1967], No. 37544/68. Heading B8B. [Also in Division G1] A crane crab frame 1 carries a hoisting motor 2 driving a winding drum 3. The weight of a load suspended from a loose pulley block 4 is measured by a load cell 9 interposed between the frame 1 and a weighbeam 8. One end 5 of a load rope 6 is attached to the weighbeam 8. The rope 6 passes over a pulley 7 also attached to the weighbeam 8, is deflected into a horizontal portion 6a and passes over a swivel pulley 12 to the winding drum 3. The weighbeam 8 is vertically guided by spring arms 10, 11. The axis 13 of the swivel pulley 12 is aligned with the rope portion 6a. The number of falls of the rope 6 may be increased by attaching the end 5 to the block 4, the rope 6 passing over at least one pulley (not shown) on the weighbeam 8.
Patent GB-364798-A (GB)
Title: Improvements in brakes for the bobbins or bobbin spindles of spinning, doubling or winding machines
IPC: D01H7/44
Filed: 1930-12-12
Abstract: 364,798. Drag arrangements for spinning and like spindles and yarndelivery spindles. PAUL, M., Waidhofenon-Ybbs, Austria. Dec. 12, 1930, No. 37562. Convention date, Dec. 19, 1929. [Class 120 (ii).] An eddy current brake for the bobbin or bobbin spindles of spinning, doubling, or winding machines having an adjustabe air gap between the poles of the electromagnet within which gap a brake disc !is freely rotatable is characterized in that the brake disc is provided with a flange projecting between the poles and preferably perpendicular to the disc, one pole of the electromagnet being adjustable with regard to the surface of the brake flange, for example by a screw on the magnet shoulder. To the spindle 1 of the spinning or like machine is attached a brake disc 2 having a downwardly projecting flange 3 which passes between the poles 5, 8 of an electromagnet. One pole 5 is fixed on the shoulder 6 of the magnet within the brake drum while the other pole 8 fixed on the shoulder 7 comprises a threaded member which by means of the wings 9 can be rotated to displace it relatively to the brake drum 3. A scale 10 attached to the stem of the screw 8 enables the amount of the braking effect to be recorded and an extension 11 on the scale 10 is arranged to strike against a stop 12 on the shoulder 7 when the air gap has been reduced to the minimum. Thus by regulating the current in the coil 13 the braking effect of all the brakes on the machine may be adjusted or by means of the screw 8 each one may be adjusted singly.
Patent GB-340118-A (GB)
Title: Improvements relating to glare vizors for motor road vehicles
IPC: B60J3/00
Filed: 1929-12-09
Abstract: 340,118. Pearce, G. H., and Jones, A. E. E. Dec. 9, 1929. Vehicle anti-dazzle screens.-An anti-dazzle screen a for motor road vehicles is pivotally suspended at a<2> in front of the windscreen b and is actuated by a flexible steel blade g or like strip guided by a bracket h and connected at the rear of the windscreen to an operating-lever f slidable in a slotted arcuate plate e<1>. A handmember f<3> screws on the end of the lever f to fix the blade g in any position.
Patent GB-772549-A (GB)
Title: Improvements in or relating to connections to electrical cables
Inventor: MILLIKEN-SMITH HERBERT
IPC: H01R9/00
Filed: 1954-12-30
Abstract: 772,549. Cable couplings. BRITISH RELAY WIRELESS, Ltd. Nov. 18, 1955 [Dec. 30, 1954], No. 37699/54. Class 38 (1). A unit for tapping a star quad or quadax cable for wire broadcasting systems, comprises a base 10 carrying two pairs of spring strip contacts 11, 12 and 13, 14 spaced apart a distance equal to a quarter of the lay of the cable conductors, each contact comprising Fig. 3, an arcuate part 19 to engage the bared conductor, a locating arm 17, and a soldering tab 18. An anchor 30 screwed into the base, prevents twisting of the cable, and serves also to contact the core of a quadax cable. In use, the outer insulation 20, screen 21, and inner insulation are cut away, as shown, to expose the cable conductors which, after removing at least outwardly-facing insulation, are forced between the contact pairs, so that each contact engages a conductor. In order to maintain screen-continuity, a further pair of interconnected spring strip contacts 40, 41 are riveted at 44, 45 to the base 10, Fig. 4, the screens 21 being secured between arcuate portions 46, 47 of the strips.
Patent GB-949951-A (GB)
Title: Apparatus for obtaining metal fluorides
Inventor: PEDREGAL JOVINO DIAZ
IPC: C01G1/06
Filed: 1960-11-04
Abstract: Metal fluorides are recovered by the reaction of gaseous fluorinating agents on the corresponding metal compounds in an apparatus which comprises a shaft-like vertically arranged reaction vessel which has connected thereto a supply and a discharge chamber, which chambers are provided with inlets for an inert gas under pressure, the supply and discharge chambers being provided with gas-tight valves, the gas-tight valve for the supply chamber being located in an inlet for solids and the gas-tight valve for the discharge chamber being located in an outlet line for the solid products. In Fig. 1 the material to be fluorinated is supplied from chamber 3 by pipe 4 to the reaction vessel 1. Chamber 3 is pressurized with an inert gas, e.g. N2, from pipe 8 and is connected by a slide valve 5 to an additional chamber 6 which can be sealed off from the atmosphere by means of slide valve 7. The fluorinating agent is supplied through the central pipe 10 to the lower half of the reaction chamber 1 and the metal fluoride which is formed is discharged by way of valve 11 to collecting chamber 13 to which an inert gas is supplied under pressure by way of pipe 14. Chamber 13 is connected by slide valve 15 to <PICT:0949951/C1/1> a detachable container 16.  The fluorinating agent is vaporized in container 17 which may be heated by jacket 18, and arranged above the container 17 is an intermediate heating space 19 which can be heated by a jacket 20.  The fluorinating agent is fed into container 17 by way of chamber 22 to which an inert gas is fed under pressure through pipe 23.  Uranium tetrafluoride and thorium tetrafluoride may be prepared in this apparatus by causing ammonium fluoride vapour to act on the corresponding metal compound, e.g. UO2 or ThO2.
Patent GB-947532-A (GB)
Title: Impellers for shot blasting machines
IPC: B24C5/06
Filed: 1961-10-24
Abstract: 947,532. Shot blasting. J. C. HOLMES. Dec. 5, 1962 [Oct. 24, 1961], No. 38030/61. Heading B3D. An impeller for shot blasting machines ineludes a pair of circular centrally bored discs secured together in parallel spaced relationship by concentrically arranged distance pieces and radial impeller plates located in slots and locked in position by clamping screws located in diametrically positioned bores in the distance pieces with at least the inner ends of the screws passing through nuts or similar internally screw-threaded members in the bores to engage with the plates. An impeller includes discs 1, 1, Fig. 3, secured together in spaced parallel relationship by hexagonal section distance pieces 2 having reduced cylindrical ends received in the discs. Each distance piece has a diametral bore 3 enlarged at one end to accommodate a nut 4 into which is screwed a screw 5. The outer end of the screw preferably has a socket 6 for receiving a key; the inner end of the screw is frusto-conical and engages a recess in a boss 9 on a plate 7 housed in radial slots 8, 8 in the inner faces of the discs 1, 1. In a modification, Fig. 4, an internally screwthreaded bush 10 having a flanged head is pressed into the bore of the distance piece. When it is necessary to remove a screw 5, the bush is pressed from the distance piece, thus removing the bush and screw as a unit.
Patent GB-1008660-A (GB)
Title: Improvements in or relating to electric circuit interrupters
Inventor: BYRNE BRIAN KEVIN
IPC: H01H9/46
Filed: 1962-10-08
Abstract: 1,008,660. Arc extinguishing in switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 30, 1963 [Oct. 8, 1962], No. 38082/62. Heading H2B.  An arc extinguishing structure comprises two walls 3, 5 electrically connected with separable contacts 1, 2 at least one wall 5 comprising a plurality of conductive plates 5a spaced apart edge to edge and each connected to contact 2 by a resistor 9, the values of resistor 9 progressively increasing away from the contacts. A further wall 4 is provided and the resistors 9, of carbon, are used to support the plates 5a from the wall 4. In a modification for A.C. use wall 3 is replaced by further walls 4, 5 and resistors 9.
Patent GB-1347178-A (GB)
Title: Production of semiconductor arrangements
IPC: H01L21/316
Filed: 1972-08-16
Abstract: 1347178 SiO 2 -Al 2 O 3  layer SIEMENS AG 16 Aug 1972 [17 Aug 1971] 38168/72 Heading C1A [Also in Division H1] A method of depositing a vitreous, homogeneous protective layer of Al 2 O 3  and SiO 2  on a semi-conductor surface comprises heating the surface to a temperature between 280 and 450 C. and directing a reaction gas flow of aluminium trimethyl, monosilane and in inert gas towards the surface, where it reacts with oxygen, to form the layer containing between 5 and 15 mol per cent of Al 2 O 3 . The reaction gas may have a flow rate in excess of 100 l/hr. and contain 5# by volume SiH 4 , 0À01 to 0À1# by volume of Al(CH 3 ) 3 , preferably 0À05#, all measured at NTP, the inert gas being argon. The thickness of the layer may be 8000- 10,000 .
Patent GB-1285504-A (GB)
Title: Improvements in and relating to cross-type universal joints, particularly for steering arrangements in motor vehicles
IPC: F16D3/41
Filed: 1970-08-10
Abstract: 1285504 Universal joints LEMFORDER METALLWAREN AG 10 Aug 1970 [18 Aug 1969] 38383/70 Heading F2U In a Hooke's joint the spider arms 4 are subjected to radial loading by resilient plugs 7 inserted in axial bores in the ends of the arms and formed with projecting rounded ends engaging depressions 11 in the end discs of the casings 5 of needle bearing units 3.
Patent GB-1151123-A (GB)
Title: Improvements in or relating to Internally Meshing Gear Pumps.
Inventor: ECKERLE OTTO
IPC: F04C2/10
Filed: 1966-08-26
Abstract: 1,151,123. Internally-meshing gear pumps and motors. O. ECKERLE. Aug. 26, 1966 [Aug.31, 1965], No.38419/66. Heading F1F. In an internally-meshing gear pump (or motor) comprising a driven (or driving) pinion, a corotating internally-toothed ring gear and a sickleshaped filling piece therebetween, the pinion and ring gear are mounted in pressure-relieved hydrostatic bearings and the filling piece is suspended to be slidable transversely and swivellable about a longitudinal axis, and rotatable about an axis perpendicular to the longitudinal axis. As shown in Figs.1 and 2, the shaft on which the pinion 5 is formed is hydrostatically supported in bearing plates 20, 21' and each bearing plate includes a spring-loaded compensating piston 21 having a pressure relief area 22 and a pressure area 23 subjected to pump discharge pressure. The pressure area 23 is connected to the pumping chamber by an annular recess 31, passages 32, 33 and a recess 34 in the bearing plate and a bore in an axial pressure piston 35 which fits the recess 34. The recess 34 and the piston 35 which is formed with a flange having a pressure relieving recess approximate to the shape of the filling piece 8. The compensating pistons 21 urge the pinion 5 sealingly against the filling piece 8 which is swivellably supported on a pin 10 and the filling piece in turn against the ring gear without undue frictional force. At the same time the pistons 35 are urged into sealing engagement with the side faces of the pinion, ring gear and filling piece to seal the pump chamber, again without undue frictional force. Pump discharge pressure also passes through radial holes in the ring into a pressure relieving recess 7 of a control piston 6 subjected on its opposite face to pressure in the pump discharge connection 14. The control piston 6 also urges the pinion, ring gear and filling piece into sealing engagement with each other without undue frictional force oppositely to the compensating pistons 21. The pin 10 is supported at each end in a block 41, Fig. 4, which blocks slide in slots in 40 in the bearing plates 20, 21' to allow transverse movement of the filling piece 8. The pinion shaft may be separate from the driven shaft and inter-connected therewith by a clutch. In another embodiment, the control piston may be acted upon by a pair of pressure pistons (52, 53, Fig.5, not shown) and the pin 10 and an additional fastening bolt (57) are inserted non-slidably in the bearing plates 20, 21' so that the bearing plates move with the filling piece 8. In other embodiments the pin 10 is guided in elongated slots in the bearing plates and the compensating pistons are located in bores in the bearing plates which are disposed tangentially to the pinion shaft.
Patent GB-344945-A (GB)
Title: A hand truck for buckets and like utensils
IPC: D06F95/00
Filed: 1929-12-16
Abstract: 344,945. Hand-trucks. HERSHMAN, M., 223, Bury New Road, Manchester. Dec. 16, 1929, No. 38439. [Class 108 (i).] In hand-trucks for buckets &c. of the kind comprising a base board mounted on castors and provided with means for engaging the bucket the means for engaging the bucket comprise hooks or like members engaging over the rim of the bucket and connected to the base member by tension springs. As shown the hand-truck comprises a base 1 provided with castors 4 and having an upstanding rim 2. Hook-like members 7 having tension springs 10 are provided for engaging the bucket 6 and the rim 2 could in addition be provided with a rubber tube or the like. A rack 14 for cloths &c. and an anchoring chain 13 are provided.
Patent GB-320291-A (GB)
Title: Improvements in and relating to metallic packing-rings for piston rods and shafts
IPC: F16J15/28
Filed: 1928-12-31
Abstract: 320,291. Huhn, G. Dec. 31. 1928. Packing, metallic. - A compound packing ring consists of an outer ring 1 of cast-iron. non-rusting steel or other hard metal, and an inner ring 5 of bronze or the like, secured together by rivets 8, or otherwise. The rings may be segmental, as shown. The ring 1 may be of L or of U-section and its flange 4 may make contact with the rod, or be spaced from it. The thickness of the ring 5 is preferably greater than that of the flange 4.
Patent GB-1161502-A (GB)
Title: Improved Vehicle Axle Assembly
IPC: B60B35/02
Filed: 1966-08-30
Abstract: 1,161,502. Vehicle axles. NORTH AMERICAN ROCKWELL CORP. 30 Aug., 1966 [30 Aug., 1965], No. 38595/66. Heading B7D. [Also in Division F2] To ensure correct wheel bearing adjustment during assembly without the use of shims, a hollow transverse axle beam 11 has two accurately ground faces 49 and 61 on each wheel spindle section 23, the face 49 being engaged by the inner race 48 of a tapered roller bearing 38 and the face 61 being engaged by a nut 59 screwed on to the end 37 of the beam 11, the double wheel hub 13 being accurately machined at 53 and 56 and the bearings 38 and 39 are accurately axially dimensioned, so that when the nut 59 is tight against the face 61 then the bearings are correctly adjusted. The beam 11 is formed from a single sheet of steel by die forging and a single longitudinal weld, and is locally thickened by swaging, and has a centre section 15 of rectangular cross-section with the weld at the middle of the top side. The centre section 15 is connected by transition sections 24 to cylindrical brake mounting sections 22 to which are welded supports 27 for fluid or cam operated brakes. Surfaces 46 and 47 receiving the races 48 and 57 are ground and induction hardened.
Patent GB-1469021-A (GB)
Title: Apparatus for measuring and positioning by interferometry
IPC: G01B9/02
Filed: 1974-09-04
Abstract: 1469021 Gauging GERBER SCIENTIFIC INSTRUMENT CO 4 Sept 1974 [7 Sept 1973] 38666/74 Heading B3B [Also in Division G1] The position of a tool head relative to a worktable is measured along two orthogonal axes using two interferometers mounted on the tool head and two mirrors, one for each interferometer mounted on the work table. The interferometer axes are othogonal, intersect the tool axis (which is perpendicular to the table) and meet the respective mirrors at right angles. As shown in plan view, the tool head (axis 54) is fixed above table 34 which is movable in the X and Y directions by lead screws 42a, 42b and 56a, 56b respectively. Interferometers 70, 80 receive light from laser 90 via beam splitter 94 and reflectors 96, 98 and the beams intersect the tool axis 54 before hitting the faces 76, 86 of reflectors 74, 84. The interference beams are fed to detectors adjacent laser 90 and the resulting pulses are counted; the count being used in position control of the tool. To reduce Abbe error, the beams 78, 88 may be directed very close to the work-table by a pair of reflectors which direct the beam vertically and then horizontally. The tool may be mechanical or may be a light head, electron beam generator, microscope, TV camera or pen or pencil.
Patent GB-899275-A (GB)
Title: Improvements in and relating to a process for the production of a coated workpiece
IPC: H05H1/42
Filed: 1958-12-02
Abstract: <PICT:0899275/III/1> In a process for the production of a coated workpiece, an electric arc is formed between a stick electrode 10 and a second electrode, constituted by an adjacent member 11 or by the workpiece 23 itself, a stream of gas 17 is passed in contact with electrode 10, the gas stream together with the arc vapours are conducted through a constricted passage to form a collinated arc flame 22 which, together with a feed of powdered electrically conductive "refractory" metal (m. pt. above 1450 DEG C.) and electron emissive compound from hopper 21, is directed on to a surface of the workpiece 23.  In a modification, the workpiece is composed of refractory metal and the feed consists of electron emissive compound. Shaped articles are made by removing the workpiece, e.g. by melting or dissolution, after it has been coated. Specified refractory metals are Cr, Mo, Ni, Nb, Ta, Ti and W. Specified emissive compounds are basia, calcia, ceria, strontia, thoria and yttria.  Gas streams 17, 19 (the latter serving to introduce coating material into the apparatus) may be of argon, helium, hydrogen, nitrogen or a reactive gas.  The coated workpieces may be electrodes or hot cathode emitters for vacuum tubes.  Specification 869,791 is referred to.
Patent GB-1136471-A (GB)
Title: Improvements in or relating to lawn mowers
Inventor: WILLIAMSON HENRY GEORGE
IPC: A01D43/063
Filed: 1964-09-23
Abstract: 1,136,471. Lawn mowers. QUALCAST Ltd. 23 Dec., 1965 [23 Sept., 1964; 9 June, 1965], Nos. 38767/64 and 24363/65. Heading A1F. A lawn mower comprises a rear roller 2 which drives a rotatable cutter 3 co-acting with a sole plate 5 secured on a mounting bracket 6, the grass cuttings being deflected by a delivery plate 7 to a grassbox 8 through a closed passage 10 formed between the plate 7 and a lower curved wall 12 of the grassbox which forms a cover plate overlying the cutter 3. The upper wall 11 of the grassbox extends to adjacent the plate 7 and the lower wall 12 has a shoulder 14 preventing return of the cuttings from the grassbox. The base 15 of the box has a re-entrant slot for locating over cross-bar 17 of the mower. In a modification the grassbox is located behind the rear roller 2 and the passage 10 is formed by upper and lower plates which extend over the roller and abut the top and bottom walls of the grassbox. The grassbox, which may be of metal or plastics, may be perforated. The cutter is a cutting cylinder which may have a central baffle in the form of a cylinder which contacts the inner edge of the blades.
Patent GB-1422928-A (GB)
Title: Footwear manufacutring apparatus
IPC: B29C35/00
Filed: 1974-09-05
Abstract: 1422928 Moulding footwear SUPERGA SpA 5 Sept 1974 [9 April 1974] 38834/74 Heading B5A An automatic vulcanizing apparatus for moulding soles on to uppers includes a heated mould 10 for the sole material, a last 12 receiving an upper and movable between mould closed and open positions, a lock 32 for holding the last in the closed position, a fluid operated actuator 20 for moving the last, a fluid operated actuator 38 for applying and releasing the lock, and an electrical control for timing the moulding cycle which is manually initiated. Such initiation of the cycle causes the actuator 20 to lower the last and close the mould whereupon a cam 70 on a bell-crank lever 25 opens a valve 66 to feed air to a valve 60 and hence through line 60a to actuator 38 to close the lock. After a predetermined time a valve 58 is operated to feed air through a line 58a to the actuator 20; a valve 60 then operates to allow air flow through line 60b to release the lock. Air in actuator 20 is exhausted through a regulator 62 and valve 58, and the last is raised. A manual valve 56 exhausts the actuators enabling manual operation of the last and lock. A foot-operated valve 50 opens the last or each one if there is a series.