baber/WOPTO huggingface dataset:
Patent GB-1235339-A (GB)
Title: Improvements in/or relating to apparatus for the electrolytic treatment of metallic pieces
Inventor: LINDEN PAUL MARIE GASTON
IPC: B23H3/10
Filed: 1968-09-17
Abstract: 1,235,339. Electrolytic machining and electrodeposition tool. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D' AVIATION. Sept.17, 1968, [Sept.26, 1967], No.44084/68. Heading C7B. Apparatus for the electrolytic treatment of metallic workpieces 2 comprises an electrode tool 1, movable transversely past the workpiece during treatment, a current generator 4, electrolyte supply means arranged to deposit a layer of electrolyte on the surface of the electrode and contrast means which causes a decrease in the thickness of the layer of electrolyte such that a thin film of electrolyte passes through a gap between the tool and the workpiece, the control means being formed either by a rigid or flexible blade urged elastically towards the tool electrode, or by a nozzle for delivering a gaseous jet at high speed against the electrolyte layer. As shown the tool electrode is formed by a disc rotating about its axis and arranged so that the axial support 3 may be moved towards and away from the workpiece. The apparatus may be used for removal of metal from the workpiece or for coating thereof. For use in machining the electrode tool 1 may contain an abrasive.
Patent GB-1093756-A (GB)
Title: Tilt operating device for venetian blinds
IPC: E06B9/382
Filed: 1965-10-20
Abstract: 1,093,756. Venetian blinds. K. W. R. HEDBERG. Oct. 20, 1965 [Oct. 20, 1964], No. 44424/65. Heading E1J. A venetian blind comprises slats 1 carried by two or more tapes 3a and 3b which can be operated for adjusting the angular position of the slats 1 by an axially-movable spindle 6 having a preferably flexible extension rod 7, a device such as a cord 10 connected to the spindle 6 at a ring 9 being connected also to the tapes, e.g. 3a, at a suitable slat 1a to bring the latter and the slats therebelow into an angular position differing from that of the others. The spindle 6 is journalled in rollers 5 for the tapes 3a and 3b, in which it can move only axially and its movements are restricted by a ring 9 acting as a stop at one end and another stop at the other. The spindle is in a fillet 4 and there may be one or more cords 10.
Patent GB-1031569-A (GB)
Title: Improvements in or relating to x-ray seriography
IPC: G03B42/04
Filed: 1963-11-12
Abstract: 1,031,569. X-ray apparatus. CHIRANA PRAHA NARODNI PODNIK. Nov. 12, 1963 [Nov. 13, 1962], No. 44674/63. Heading H5R. In serial radiography apparatus a cassette carriage 1 is provided with a pair of relatively adjustable stepped jaws 2 and 3 to clamp various sizes of film casette, one of the jaws being provided with a member 9 for actuating one of a number of push-buttons K5 to K11 connected in the electrical circuit of an electromagnet Z 1 and arranged to control the relative distances of screens 10. The push-buttons are also connected in a circuit for counting the exposures and, in conjunction with buttons 9 actuated by an extension member on the cassette carriage, moving the cassette carriage to the appropriate position and making the exposure. A button A1 is provided to initiate the operation of the machine, the machine cycle commencing, when the button is pressed, by starting the driving motor of the cassette carriage, switching on the heater in the X-ray tube, and energizing the driving motor of the Bucky screen. The actual exposure is made either when the button A1 is released or, if the tube has not had time to warm up, due to the button having been released immediately, after a suitable delay time. The drive motor for the Bucky screen is provided with cams on its shaft, which cams operate switches to cause the exposure, and to energize the motor to drive the cassette carriage to its new position. If four pictures are required, i.e. two upper and two lower, the lever 4 is operated after two exposures with the cassette clamps against a lower stop and a further two exposures are made with the clamps against an upper stop.
Patent GB-990521-A (GB)
Title: Improvements in or relating to the burning and sintering of cement and similar substances, and shaft furnaces therefor
IPC: C04B7/44
Filed: 1961-12-14
Abstract: <PICT:0990521/C1/1> <PICT:0990521/C1/2> Granular or powdery cement and similar substances, e.g. lime, dolomite and magnesite, are burnt and sintered in a shaft furnace, wherein the temperature of the sintering zone is maintained above the point of formation of a liquid eutectic phase and below that at which excessive agglomeration of the clinker takes place, and wherein the combustion gases are blown into the sintering zone radially at such a velocity as to loosen and to hold the individual particles in suspension in the gases.  In Fig. 1, blower 5 passes air upward through a rotary grate 11 into the cooling zone of the furnace 1 where it is withdrawn to collector duct 8 and passes by way of pipe 9 and/or blower 6 and pipe 7 into the annular combustion chamber 3. No cooling gas passes upward through the steeping zone above the cooling zone.  Fuel which may be gas, oil or a low grade fuel is introduced and burnt at pipe 4 and the combustion gases pass round the shaft and through holes 14 into the sintering zone at such a rate that they suspend the calcined particles passing down the shaft.  A minor proportion (5-10%) of the combustion gases may pass down through the steeping zone but at least the major part rises through the calcining and preheating zones.  In Fig. 7, the shaft furnace which is particularly suitable for treating dust, is similar to that in Fig. 1, but the cooling gases are merely passed into the combustion chamber without blowing.  The hot gases from the shaft are withdrawn through section 22 from the sintering zone by blower 30 and pass up through pipes 29, 27 and 24, preheating and calcining the cement which is added at 23 and flows downwards through cyclones 26, 25 and 28 to the sintering zone, the calcination being completed in the sintering zone.  The product is removed at 13.  In another apparatus (not shown), a roller grate is used with a shaft furnace of oval cross-section and gases are extracted by a blower from below a cover for the shaft.  When cement is burnt, the sintering and steeping zones operate at 1300-1400 DEG  C.
Patent GB-955243-A (GB)
Title: Improvements in the cold rolling of fillet radii
Inventor: DAVIS DAVID EDWARD
IPC: B24B39/04
Filed: 1962-11-28
Abstract: 955,243. Rolling crank-shaft fillets. BRISTOL SIDDELEY ENGINES Ltd. Nov. 28, 1962 No. 45063/62. Headings B3A and B3M. A method of cold-working the fillet radii of a crank-shaft comprises the steps of machining the radii and then cold-rolling them, using one or more rollers, the crosssection of each roller in a plane through its axis of rotation, having a portion of radius approximately equal to that of the fillet radius and an adjacent portion of larger radius, the radii running smoothly into one another and preventing formation of cusps at the edges of the radii during rolling. A typical roller profile is shown in Fig. 5 where a roller 94 is provided with radii r<SP>2</SP> and r<SP>3</SP> and also portions 97 and 101 of infinite radius (straight profiles). A rolling tool comprises arms 2 and 3, hinged at 4, which support holders 8, 9 and 10 on to which are hingedly fixed rollers 69, one at least of the rollers being of the profile described. In operation, the arms are put round a workpiece and a bolt 31 is inserted through a cam assembly 49, lugs 13 and 14, and a sleeve 37, and is held by a spring C-washer 46. A spring 41, acting between a collar 39 and an adjustable nut 42 pinned to the lug 14, exerts a force urging the arms and rolls inwardly. Full working pressure on the rolls is effected by rotating, by means of a tommy bar, a movable wedge member 55 relative to a similar fixed member 53, wedge surfaces on the members urging the two members apart to further compress the spring. Small flattened portions on the wedge surfaces allow the members to remain in this held apart condition. Fig. 8 shows how rolls 130 are supported in relation to a workpiece whose fillets are being rolled.
Patent GB-1516369-A (GB)
Title: Video tape recorders
IPC: H04N5/945
Filed: 1976-10-29
Abstract: 1516369 Helical-scan video tape recorders FERRANTI Ltd 29 Oct 1976 [31 Oct 1975] 45146/75 Heading G5R During playback, each successive cycle of played-back video information (e.g. radar signals) is temporarily stored in digital form, and the occurrence of cross-over drop-out (i.e. loss of signal when the rotating playback head leaves the tape) causes the corresponding video information from the preceding cycle to be read out from the store.
Patent GB-1153550-A (GB)
Title: Process for the Passivation and Stabilization of the Surface of a Semiconductor Device
IPC: H01L23/31
Filed: 1967-10-04
Abstract: 1,153,550. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 4 Oct., 1967 [28 Oct., 1966], No. 45178/67. Heading H1K. A method of making semi-conductor devices with passivated and stabilized surfaces comprises formation of a layer of passivating and stabilizing material on all surfaces of a body of semi-conductor material, and slicing wafers 110 (Fig. 3) from that body so that each wafer has top 16 and bottom 18 surfaces not covered, and its sides 112 covered with the passivating and stabilizing material 114, after which at least one PN junction is formed in the wafer by introduction of a doping impurity through either or both of the top and bottom surfaces. The semi-conductor materials used are silicon, germanium, silicon carbide, a Group III-Group V compound or a Group II-Group VI compound, with aluminium, gallium, boron or indium as P-type and phosphorus, arsenic or antimony as N-type dopants. The passivating and stabilizing material, which is formed immediately after the semi-conductor body has been grown, is silicon dioxide or silicon nitride. The former is formed by the introduction of wet oxygen or water vapour into the furnace in which the silicon has been prepared by the decomposition of halogenated silane and hydrogen. The latter is deposited by the introduction of ammonia into the furnace with the halogenated silane after the hydrogen has been shut off. The making of a shorted emitter thyristor, Fig. 6, is described, using KMER as a photo-resist. The base and emitter electrodes, 52, 50 are of aluminium and the third electrode 54 is of molybdenum, tungsten, tantalum or base alloys of these joined to the wafer surface by a solder 56 containing a dopant of the same type as layer 22.
Patent GB-1185425-A (GB)
Title: Improvements in or relating to the Manufacture of Ferromagnetic Lithium-Zinc Ferrite Cores.
IPC: C04B35/26
Filed: 1968-09-25
Abstract: 1,185,425. Magnetic compositions. SIEMENS A.G.. 25 Sept., 1968 [26 Sept., 1967], No. 45430/68. Heading H1H. A square loop LiZn ferrite core is produced by (a) introducing core pressings of a pre-sintered mixture of composition 3À5-15 mole per cent ZnO 10-16 mole per cent Li 2 O 70-81 mole per cent Fe 2 O 3  (the total oxides being 100 mole per cent) in N 2  over 10-30 mins. into a furnace heated to 880-960‹ C.: (b) sintering in O 2  for 15-60 mins. at 880- 960‹ C; (c) heating up to 1060-1220‹ C. in O 2  over 10-30 mins. and sintering in O 2  at this temperature for up to 60 ruins.; (d) cooling in O 2  in the furnace to 880-960‹ C. over 20-30 mins., and optionally holding this temperature for up to 60 ruins.; and (e) removing the cores from the furnace either rapidly in a few mins. in O 2  or slowly in up to 10 mins. in N 2 . The starting mixture may be presintered for 2 hours at 550-800‹ C.
Patent GB-1491732-A (GB)
Title: Relief and pilot valves
IPC: F16K17/10
Filed: 1974-10-21
Abstract: 1491732 Valves VAPOR CORP 21 Oct 1974 [4 March 1974] 45469/74 Heading F2V [Also in Division G3] A pilot operated relief valve for a pressure vessel has ports 16, 17, for connection to the vessel and to atmosphere, and a seat member 21 and pallet 23 closing thereon, the latter being operated by change of differential pressure across a wall of chamber 34 which is connected to the pressure vessel or to atmosphere as controlled by the pilot valve 11. Pallets 61, 62, on a plunger 60 of valve 11 are arranged so that when the chamber 34, which is connected to port 53, is connected to atmosphere, through port 49, port 51, connected to the pressure vessel, is shut off from the chamber 34. The pressure chamber 34 may be a bellows between fixed and moving plates 33, 38, guided by rods 26. The pilot valve may be loaded by the field from magnet pallet 62 through magnetic member 68 around port 59 adjustment of lifting and blow down pressures being made by axial shifting of the member 68 and pallet 61 at their attachments.
Patent GB-1410025-A (GB)
Title: Fluorocarbon-coated fuser rollers
IPC: G03G15/20
Filed: 1972-10-03
Abstract: 1410025 Rollers XEROX CORP 3 Oct 1972 [6 Oct 1971] 45475/72 Heading F2U [Also in Division G2] A fluorocarbon-coated roller suitable for use as a fuser roller in a heat-fixing device within a xerographic apparatus is made by applying successive coats of tetrafluorethylene (as both primer and enamel) to a roller body, with drying and baking steps between the applications, avoiding any fusing of the tetrafluorethylene until the roller is complete and the tetrafluorethylene coats can be fused in a single operation, and also avoiding application of any single coat thick enough to incur mud cracking.
Patent GB-1016427-A (GB)
Title: A machine-tool synchronised control system for a plurality of machines
IPC: G05B19/418
Filed: 1963-11-18
Abstract: 1,016,427. Drilling; milling. NIPPON ELECTRIC CO. Ltd. Nov. 18, 1963 [Dec. 15, 1962], No. 45502/63. Headings B3C and B3K. [Also in Division G3] In a synchronized control system for a plurality of machine tools responsive to a single cyclic programming device, the starting times are staggered from machine to machine whereby a workpiece can be set up on one machine while other machines are operating, the system being adapted for bringing each newly set up machine into operation with the tool positioned as in the already operating machines. As shown, information on an endless control tape is read by a reader 12 and fed through a control computer 11, for interpolation and cutter radius compensation, and and-gates 31-33 to control devices 21-23 for milling machines 1-3. On setting-up a workpiece in the machine 1 a start signal is applied to a bi-stable flip-flop 41 to commence operation of the computer 11 by a starting order to input A through an OR-gate 14. The computer then controls machine 1 through the AND-gate 31. Successively on completion of the setting-up of a workpiece in machine 2 the operation of the computer is held through an input B. Processing by the machine 1 is thus held up and a high-speed positioning control adjusts the cutter centre of machine 2 until it reaches the held programmed position. A start order for the machine 2 is then applied to a flip-flop 42 which releases the computer through the OR-gate 14 and input A. The machine 1 then continues processing the unfinished workpiece and the machine 2 starts processing from an intermediate point. A similar sequence is effected for starting up machine 3. In a modification, the machine 2 is set-up to a position to be reached at the end of the current block of processing information, so that the operation of machine 1 is not interrupted. The first block number of the instruction read from the control tape when starting each tool is automatically recorded and the repetition of this number at the completion of processing is detected by a counter 13 and causes the appropriate flip-flop to be reset to terminate the operation of the associated machine. It is stated that the system can be employed to control a drilling machine and that the interpolating computer can be replaced by a cyclic programming device comprising a magnetic tape and a pulse distributer for distributing control pulses from the tape to the machines.
Patent GB-1435770-A (GB)
Title: Means for breaking the bond between a wheel and a tyre mounted thereon
IPC: B60C25/02
Filed: 1973-09-28
Abstract: 1435770 Bead-breaking apparatus D J MARSHALL 28 Sept 1973 [29 Sept 1972] 45515/73 Heading B7C A power-operated tool which is for breaking the bond between a wheel and a bead 11 of a tire 10 mounted on the wheel and which comprises a power unit 50 and a wedge 51, is mounted on a portion 25 of an adapter 20 comprising a beam 21 including a flange 22 for contact with a disc 15 of the wheel, the adapter including a shoe 22 which may be clamped to the flange 22 by means of a threaded post 31 passing through a bushing 38 which bears on flanges 23, (24), Fig. 5 (not shown), of the beam 21, the shoe 32 including a plate 37 which bears against the wheel disc 15 during use. As shown, the shoe 32 has a lug 39 which engages in a selected one of recesses 40 in the flange 22. The power unit 50 may be of the pneumatic or hydraulic type and is mounted on the portion 25 by sliding pivot pins (53, 54), Fig. 5 (not shown), into slots 44B, (44A) in a yoke 41; the pivot pins are secured by rotating hand wheels 47, (48) which engage over bosses 45, (46) of the yoke. The wheel shown comprises a disc 15 having an aperture 16, an annular rim 12, and a split lock-ring 13.
Patent GB-1366433-A (GB)
Title: Method and apparatus for agglomeration measuring and control
IPC: G01N33/00
Filed: 1972-10-03
Abstract: 1366433 Flocculating sewage KOMLINESANDERSON ENG CORP 3 Oct 1972 [12 Oct 1971] 45555/72 Heading ClC [Also in Divisions G1 and G3] In a method of determining the Zeta potential of suspended colloidal particles, a sample of the suspension is injected into an electrophoresis cell 22, Fig. 1a, the particles are tracked microscopically by appropriate equipment 28, 32, and the velocity of the particles derived 34, and then from the velocity of the particles together with the temperature of the suspension and the voltage across the cell, the Zeta potential is computed 36 using the standard formula. As described the measuring arrangement forms part of an automatic process for adding a flocculating agent such as FeCl3, Al2(SO4)3, AlCl3, or cationic polyelectrolytes 12 to either raw sewage or activated sludge in such a way that the Zeta potential of the mixture is brought to a preset value so that subsequently the suspended particles will coagulate and precipitate.
Patent GB-976310-A (GB)
Title: Improvements in or relating to electric gating circuits
IPC: H03K19/173
Filed: 1961-12-20
Abstract: 976,310. Pulse gating circuits. GENERAL ELECTRIC CO. Ltd., and J. N. HAILE. Dec. 10, 1962 [Dec. 20, 1961], No. 45701/61. Heading H3P. A gating circuit comprises a first input path to which a train of clock pulses is supplied, a second input path to which an input gate pulse is supplied, means to derive from these signals a derived gate pulse the duration of which coincides with the duration of the input gate pulse less any portion of the input gate pulse contiguous with its leading edge and coincident with a part only of the duration of a clock pulse, and an " AND " gate to which the clock pulse signal and the derived gate pulse are supplied, the arrangement being such that the " AND " gate only passes those clock pulses whose leading edges fall within the duration of the input gate pulse. The gate pulse shown in waveform A of Fig. 2, is supplied to terminal 1 of Fig. 1, and the clock pulses shown in waveform B are supplied to terminal 2. The gate 4 operates so as to be opened by gate pulse 8 only when no clock pulse is present, and its output is shown at C and is inverted in unit 6 to produce waveform D. The waveforms A and D are supplied to a bi-stable circuit 3 which is triggered into one state by the first positivegoing edge 11 of waveform D and into its other state by the first position-going edge 12 of waveform A, so that its output is as shown at E. This output is fed to the " AND " gate 5, together with clock pulses from terminal 2, so that the output at terminal 7 is the waveform F and comprises only those clock pulses whose leading edges fall within the duration of the input gate pulse.
Patent GB-1301164-A (GB)
Title: Improvements in or relating to processes and devices for producing wrapped wire electrical connections
IPC: H01R43/033
Filed: 1970-09-25
Abstract: 1301164 Wrapping wire on terminals SIEMENS AG 25 Sept 1970 [29 Sept 1969] 45758/70 Headings B3A and B3E [Also in Division H2] Wire 4 is wrapped around a contact pin 10 by a rotatable spindle 2, which has a hole 19 in one end for receiving the pin 10, a passage 6 for the insulated wire 4 and an insulator stripper 12 for partially cutting through the insulation and retaining the portion of insulation within the spindle 2 as the bare wire passes out to be wound. In operation, insulated wire 4 is fed through the passage 6, through a passage (5) (Fig. 1, not shown) in the spindle 2 and out through a shearing aperture (7) in a fixed casing 3 surrounding the spindle 2. The other end of the wire 4 is inserted in a slot 20 in the casing 3. When the spindle 2 is rotated, the surplus wire 4 protruding from the shearing aperture (7) is cut and the insulated wire 4 adjacent the end of the passage 6 is automatically forced into the insulation stripper 12 which cuts through the wire 4 around part of its circumference. The insulation lying within the passage 6 is retained by the stripper 12 so that upon further rotation of the spindle 2 the insulation is completely severed by tearing, thereby allowing bare wire to pass out of the recess 16 of the stripper 12 and be wound around the pin 10. The end face of the spindle 2 is provided with a projection 17 for initially forcing the wire 4 against the pin 10. Two wires may be simultaneously connected to the pin 10 by providing a larger insulation stripper (Fig. 11, not shown) or two separate strippers (Fig. 10, not shown).
Patent GB-1023876-A (GB)
Title: A continuous process for obtaining dextrose from a dextrose containing liquor
Inventor: IDASZAK LEO RAYMOND
IPC: C07H3/02
Filed: 1963-11-22
Abstract: A continuous process for obtaining dextrose from a dextrose-containing liquor comprises concentrating, in a vessel, having means for simultaneously evaporating a liquor and crystallizing it, a dextrose-containing liquor having a density of 18-37 DEG  Baum<\>ae at a dextrose content above 70% by weight until the liquor has a dry substance content of 74-85% by weight and a supersaturation with respect to dextrose of 10-65%, inducing crystallization until the "crystal phase yield" is 5-65%, continuously discharging massecuite from the vessel and adding fresh unconcentrated dextrose solution, the rate of concentration, the rate of discharge of massecuite and the rate of introduction of fresh dextrose solution being adjusted so as to maintain the liquor in the vessel at a dry substance content of 74-85% and its supersaturation with respect to dextrose at 10-65%.  The "crystal phase yield" of the massecuite is defined as the weight of dextrose crystals x 100/dry substance content Crystallization may be induced by standard means, e.g. by seeding or "shocking."  The type of crystals obtained depends on the temperature used.  If alpha anhydrous crystals are required the temperature should be maintained at 50-90 DEG  C., for dextrose hydrate crystals the temperature should be 18-50 DEG  C. and for beta anhydrous dextrose the temperature should be maintained above 115 DEG C.