baber/WOPTO huggingface dataset:
Patent GB-878912-A (GB)
Title: Improved jig type washbox
Inventor: MENZIES JAMES DONALD
IPC: B03B5/20
Filed: 1958-11-10
Abstract: 878,912. Jigs. AUTOMATIC COAL CLEANING CO. Ltd. Nov. 3, 1959 [Nov. 10, 1958], No. 35964/58. Class 82(2) A jig having a circular or annular bed is actuated by an inverted cup shaped air chamber at the centre of the bed with its edges below the water level, material being fed to the centre and the separated fractions discharged at the periphery. As shown, feed is supplied from hopper 10 and under control gate 12 to annular perforated plate 13. Pulsating air is suuplied by duct 8 and water by duct 9 to chamber 7, the wall of which extends below the level of the water in inner cone 6. Light material separated by the jig is carried over sill 15 to peripheral launder 16 while the heavy material passes under gate 11 and over gate 14 into outer cone 2, the rate of removal of the heavy fraction being controllable by varying the pulsation of the bed between gates 11 and 14 by means of valves which connect chamber 18 to atmosphere, the closure of these valves decreasing the pulsation and the rate of removal of the heavy fraction. In an alternative embodiment (Fig. 3, not shown) the whole of the heavy fraction passes through a bedding layer of feldspar and through the screen into the base of the wash box from which it is removed.
Patent GB-413672-A (GB)
Title: Improvements in and relating to the soldering of parts of incandescent electric lamps and the like
IPC: H01J5/62
Filed: 1932-12-19
Abstract: 413,672. Soldering leading-in wires to electric lamps &c. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Rippl, F. J. ; 16,002, Neladale Avenue, East Cleveland, Ohio, U.S.A.) Dec. 19, 1932, No. 36024. Convention date, Dec. 19, 1931. Addition to 381,031. [Classes 83 (ii) and 83 (iv).] In soldering the lead wires to the bases of electric-incandescent lamps and the like by inserting solder in the form of a rivet into an aperture in the base and heating so as to unite the lead wire to the base as described in the parent Specification ; the rivet has a shank portion shaped to be more readily fusible than the head portion, so that the head of the rivet is prevented from becoming deformed during the fusing process. The solder rivet 130 is formed with a hollow shank having tapering walls which is melted by gas flames so as to unite the lead wire 131 to the eyelet 72 in the base, the head portion being kept cool by the nozzle 117. The gas flame is preferably deflected by a jet of air before the nozzle is raised, the air cooling the nozzle and also the head after the nozzle is raised. The rivet is shaped by the plunger 102 described in the parent Specification. The Specification as open to inspection under Sect. 91 describes also the machine of the parent Specification. This subject-matter does not appear in the Specification as accepted.
Patent GB-1399505-A (GB)
Title: Devices ensuring weather-proofing in buildings
IPC: E04D13/14
Filed: 1972-08-02
Abstract: 1399505 Flashings ETABS LAGESSE ET NEYMARC 2 Aug 1972 36106/72 Heading E1W A weather strip for use in a terrace, balcony, eaves-gutter or string course comprises a female section 33 and a male section 35, the section 33 being secured to a wall 2, embedded in mortar 3 and having opposed flanges 13, 34 defining an opening 12 to receive the head 36 of the male section 35. The head 36 is of omega section and serves as a deformable clip having shoulders 39, 40, a tongue 41 and a lower strip 17 to overlie the protective coating 5 covering the mortar 3. The sections 33, 35 may be made of polyvinyl chloride, metal, metal alloys or other materials for details of which together with modified shape of male section the Specification should be referred to A covering section may be provided to cover the joint between adjacent male sections for profile of which Fig 4, (not shown) should be referred to.
Patent GB-1115237-A (GB)
Title: Semiconductor crystals
IPC: C30B25/02
Filed: 1966-08-16
Abstract: Monocrystalline SiC is grown on a substrate of monocrystalline sapphire by heating the substrate to 1650-2000 DEG  C. in the presence of an atmosphere of silicon and carbon containing gases. The atmosphere may consist of (1) hydrogen and an organosilane, (2) hydrogen and a gaseous silicon compound and a gaseous organic compound, or (3) silicon tetrachloride and methane; methylchlorosilanes being preferred as the silicon containing gas.
Patent GB-960434-A (GB)
Title: Noise protection circuit for television receivers
IPC: H04N5/213
Filed: 1960-10-25
Abstract: 960,434. Television; automatic gain control. RADIO CORPORATION OF AMERICA. Oct. 25, 1960 [Nov. 24, 1959], No. 36654/60. Headings H3Q and H4F. A television receives A.G.C. system comprising a pentode 10 which receives the composite signal 140 at its grid and which is gated at its anode by pulses from a source 134 synchronous with the synchronizing pulses, so as to develop from the anode a unidirectional gain control voltage which varies in accordance with the amplitude of the synchronizing pulses, is characterized by the provision in the pentode screen circuit of a load 44 across which is developed a signal 48 primarily comprised of noise components. In accordance with one feature of the invention, the signal is applied through circuit 52, 54 to the suppressor of the pentode to prevent noise interfering with the A.G.C. operation by cancelling out the noise components in the original signal. A diode 57 clamps the suppressor grid potential to cathode potential for the purpose of ensuring that the suppressor potential remains independent of the average noise level and cancellation is effected by both large and small amplitude noise pulses. In accordance with a second feature of the invention, the noise signal is applied through resistor 40 to synchronizing signal separator stage 108 for the purpose of cancelling or inverting the noise components from the video signal applied to the stage from the anode of video amplifier 82. The cathode potentials of tubes 10 and 108 are derived from a common network 112, 130, 132 in which resistor 132 permits A.G.C. level adjustment and simultaneously alters the bias of the separator stage. The composite video signal input for pentode 10 is derived from a detector 120 poled oppositely to the main video detector 72. In a first modification, Fig. 4 (not shown), only one detector is provided and the video signal for the pentode is obtained from the output of the video amplifier. Provision is made to reduce the grid-cathode bias of the pentode during weak signals, so as to maintain A.G.C. and noise cancellation below normal A.G.C. threshold, by arranging that the bias is determined in part by the cathode potential of one of the A.G.C. controlled valves in the receiver I.F. amplifier. The noise signal derived from the screen comprises residual portions of synchronizing signals of which the vertical components are the larger. The horizontal and vertical components are equalized by applying a portion of the anode gating pulse signal, which is derived from scanning flyback, to the pentode control grid. In a second modification, Fig. 5 (not shown), the input video signal for the A.G.C. pentode is derived from the main video detector and applied to the cathode of the pentode.
Patent GB-1161249-A (GB)
Title: Ground Effect Machine
IPC: B60V1/00
Filed: 1967-08-10
Abstract: 1,161,249. Air cushion vehicles. BELL AEROSPACE CORP. 10 Aug., 1967 [29 Aug., 1966], No. 36689/67. Heading B7K. The skirt for an air cushion comprises an inflated flexible looped skirt 30 having slots 32 forming nozzles for air jets, the skirt 30 containing an inflatable tubular valve means 40 fixed to one edge of the slots 32 and formed so that when deflated it lies flat to close the slots 32, Fig. 4, and when inflated assumes a cylindrical form, opening the slots, the air jets being deflected inwardly to supply the air cushion, by Coanda effect round the cylindrical form of the inflated valve means 40. The valve means 40 is supplied by a conduit 46 with highpressure air, e.g. from fan 50, pilot controlled, e.g. through valve 49, to inflate and deflate the valve means 40. The valve means 40 may comprise a flexible upper part 42 and a stiffer lower part 44, the underside of which is reinforced with abrasion resistant means and projects below the skirt 30 to act as a skid. The skirt 30 may be inflated by centrifugal fans 16 rotated about an axis transverse to the supported vehicle (10), Fig. 1 (not shown). The vehicle (10) is shown having a cab 12 at the front, the centrifugal fans 16 being towards the rear, the vehicle being propelled by a propeller (15) immediately in front of a rudder empennage (14) at the rear.
Patent GB-1126410-A (GB)
Title: Improvements to tufting machines
Inventor: SINGLETON ALAN
IPC: D05C15/32
Filed: 1966-08-18
Abstract: 1,126,410. Tufting. SINGER-COBBLE Ltd. 14 Aug., 1967 [18 Aug., 1966], No. 36945/66. Heading D1G. Yarn feed means for a tufting machine comprises a plurality of drive shafts, a feed roller journalled on each shaft, the corresponding rollers of said shafts being drivingly connected one to another, and means for coupling each roller to its respective shaft, the arrangement being such that the rollers may be driven at the speed of one or other of the drive shafts. A shaft 12 comprises sections 12a interconnected by stub shafts 12b. Each stub shaft is journalled in a bearing 12c carried by a fixed bracket 15, and is formed at each end with a tongue 12e which engages a groove 12d formed in the end of the adjacent section 12a, the mating parts being held together by a split collar 12f. Yarn feed rollers 13 are journalled on each section 12a by means of respective hub portions 13b. A first clutch element 14b slidably mounted on hub 13b, is shifted into engagement with a second clutch element 14a, rigid with section 12a, upon energisation of a solenoid 14c, carried by a fixed bracket 17, for coupling roller 13 to section 12a. Roller 13 is formed with gear teeth 13c meshing with similar teeth on a corresponding roller 13 similarly mounted on a second shaft 12 rotating at a speed different from that of the first shaft 12. By selective energisation of the solenoids associated with one or the other of the shafts, the rollers may rotate at the speed of either one shaft or the other. In a modification, three similarly interconnected shafts provide a choice of three different speeds.
Patent GB-1008246-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B29D5/04
Filed: 1961-10-14
Abstract: 1,008,246. Moulding sliding-clasp fasteners. W. DITTMAYER. Oct. 14, 1961, No. 36958/61. Heading B5A. Strings of loops 13 for the manufacture of slide fasteners are made from a thermoplastic thread 1 by, looping the thread 1 over a winding disc 14, under a plate 9a of a heated wheel 15 over the winding disc 14 in the reverse direction and under a plate 9b, continuing this sequence as the wheel 15 revolves, and passing the loops through a heating device 16, a pressure roller 17, which moulds the thread on the periphery of the winding disc 14 into required leads, a lifting device 18 and a stripper 19. The wheel 15 comprises plates 9a, 9b having springs 12 to keep them closed (as in Fig. 4, not shown), unless rollers 10a, 10b contact the plates 9a, 9b and cause them to lift and abutting surfaces 11a, 11b hold the plates 9a, 9b open to allow the thread 1 to pass under the plate. The wheel 15 is intermittantly revolved by the pressure of two feed fingers 7a and has the winding disc 14 secured between the two parts 15a, 15b. The thread-laying device which is movable side to side and up and down is placed at the lower end of a rod 2 below a spring 6<SP>1</SP> and comprises a sleeve 6 with bifurcated ends 6a, 6b and lugs 4 and 5 through which the material is threaded. The sleeve 6 has a groove 8<SP>1</SP> and a pin 8 screwed to the rod 2 which is slidable in said groove 8<SP>1</SP>. Instead of the stripper 19, a lifting device may comprise a receiving disc in two parts 20a, 20b with teeth 21a, 21b corresponding to the position of the plates 9a, 9b with a receiving place 22 for loops 13. To make loops of a predetermined length a switch is provided behind the lifting rollers 10a, 10b so that straight portions of thread are produced between each length.
Patent GB-1292067-A (GB)
Title: Television apparatus
Inventor: BECKER WERNER
IPC: H04N9/11
Filed: 1970-07-31
Abstract: 1292067 Television FERNSEH GmbH 31 July 1970 [2 Aug 1969] 37051/70 Heading H4F When a device 2 senses a single mark on the side of a colour film, e.g. at the commencement of a scene when the colour quality of the film might alter, a punched tape reader 11 is actuated and provides information which controls the transfer characteristics of circuitry 6 (switch contact 13a is closed) receiving R, G, B and possibly Y signals derived from scanning the film so that errors in signals from that part of the film are corrected before the signals are coded at 7, transmitted 9 and monitored 8. To prepare the punched tape the film scanner is held by each mark on the film and the monitor 8 observed. With switch 13b closed, controls 15 are operated, to give a plurality of parallel analogue outputs which are converted 14 to digital form and control the circuitry 6, until the desired picture is obtained. Thereupon the outputs of converters 14 are changed at 16 to series form and recorded by a tape perforator 17. A series-parallel converter 12 is provided to reconstitute the parallel inputs to the circuit 6 when the tape reader 11 is operative. As described, the circuit 6 may be used to vary the peak values of the R, G and B signals, vary the contrast and black level setting in all four signals and also apply a control whereby the Y signal is varied in a sense opposite to the R, G and B signals, maintaining the R, G and B signals in proportion and keeping the overall signal amplitude constant. Since switching transients in circuit 6 will upset the signals, the control signals are fed thereto only during the vertical blanking period, either by gating them during that period to an intermediate store connected to the circuit, or, as shown, by using a vertical frequency pulse V to actuate circuits 12, 14, 16 and 17. The device 2 may be an electrical contact which is closed by the mask or a photoelectric device. It is also possible to control change-over of films. When two close marks are sensed, a separator 10 sets a second film scanner into operation, and when three marks appear, the first scanner is stopped. Various forms of A/D converters are described, Figs. 3, 5, 7 and 8 (not shown) and Fig. 6 (not shown) illustrates two variable attenuators such as may be found in circuit 6, each simultaneously controlled by switches operated by digital signals and connected so as to provide a gamma correction.
Patent GB-1480587-A (GB)
Title: Radar systems
IPC: G01S13/14
Filed: 1974-07-18
Abstract: 1480587 Radar PLESSEY CO Ltd and I D LONGSTAFF 18 July 1974 [4 Aug 1973] 37123/73 Heading H4D In a pulse radar, especially an altimeter, the use of the trigger pulse A, Fig. 2, to define the start of the ranging period and the use of the echo pulse D at the receiver 6, Fig. 1, output to define the end of the ranging period, ignores the delay T1 between the trigger pulse and the actual transmitted pulse B and the delay T2 between the echo C as received at the antenna and the pulse D. As T1 and T2 are randomly temperature dependant, this produces large errors at very small ranges (altitudes). It is therefor proposed to use the leakage pulse E of the transmitted pulse to define the start of the ranging period, said pulse E being delayed the required amount T3=T1+T2 from the trigger pulse. During an assumed time of reception of the leakage pulse E, the receiver 6 has its gains increased and a leakage integrator 16 is bought into circuit by the closure of switches 18 and 19. The leakage integrator output resets at ¢ v. and is compared at 10 with a sawtooth voltage from 5 synchronous with the transmitted pulses. Equality in the comparator 10 enables range gate 9 which produces a positive signal increasing the integrator output if the pulse E is not acquired and a negative signal if it is. The integrator output is varied until the pulse E is acquired whereby its output at one input of differential amplifier 23 represents T3. During the remainder of the ranging period, switches 20, 21 close and 18, 19 open, giving a change over to integrator 14 resetting at 10 v. The integrator output is controlled by the gate 9 output until the echo pulse D is acquired whereby said output, at the second input to differential amplifier 23, produces the required error free output therefrom.
Patent GB-920896-A (GB)
Title: A method of producing workpieces required to exhibit high strength at room and at elevated temperatures
IPC: C22F1/10
Filed: 1961-10-17
Abstract: A method of producing a hot extrusion, drop forging or like die or tool or component stressed at high temperature and made of an alloy containing more than 50% nickel or nickel and cobalt and up to 45% chromium and at least one of the elements iron, manganese, aluminium molybdenum, tungsten, vanadium, titanium, niobium, tantalum, silicon and carbon in quantity not exceeding a total of 40% comprises the steps of successively reducing the workpiece by hot working, e.g. by forging, upsetting or pressing, to a shape exceeding the final dimensions by between 10 and 20% subjecting the workpiece to a solution heat treatment at 1,050 to 1,200 DEG  C. for 1 to 10 hours, cooling the preformed workpiece directly from the said temperature to a temperature below the recrystallization point and within the range 600 DEG  to 700 DEG  C. and then reducing the workpiece to its final dimensions and finally subjecting the workpiece to a precipitation hardening treatment at between 650 DEG  and 800 DEG  C. for 10 to 20 hours.  In an example, a precipitation hardenable austenitic alloy is hot worked into a disc or plate-shaped die blank having dimensions exceeding the desired final dimensions by 13.5%.  The blank is solution heat treated at 1,150 DEG  C. for 2 hours and then cooled to 650 DEG  C. at which temperature the blank is reduced to its final dimensions by upsetting.  Finally, the blank is heat treated at 700 DEG  C. for 16 hours to effect the precipitation hardening.  The alloys contain not more than 1% C., not more than 5% titanium and silicon, and none of said additional elements should exceed 25%. Minor quantities of nitrogen, copper and rare earth metals may be included.  The alloys may contain alloying components in the following quantities:-  .Chromium.Up to 30% .Molybdenum.Up to 10% .Tungsten.Up to 10% .Vanadium.Up to 5% .Titanium.Up to 5% .Niobium and tantalum.Up to 10% .Aluminium.Up to 6% .Silicon.Up to 3% .Manganese.Up to 3% .Nitrogen.Up to 0.5% .Boron.Up to 0.5% .Zirconium.Up to 0.5% .Iron.Up to 10%
Patent GB-1269839-A (GB)
Title: Take-up spool for film cassettes
Inventor: SCHMIDT HANS-ROBERT
IPC: G03B17/30
Filed: 1969-07-25
Abstract: 1,269,839. Film spools. AGFA-GEVAERT A.G. July 25, 1969 [July 29, 1968], No.37419/69. Heading G2A. A film spool comprises a spindle 2 having at each end a grooved flange 6, 7, the spindle also having a recess 3 in which is disposed a fastening hook 4 and locking elements 5. When the spool is fitted into a cassette, the grooved construction acts as a light-guard labyrinth.
Patent GB-780344-A (GB)
Title: Improvements in or relating to a method and apparatus for forming the end closures of paper bags
IPC: B31B160/10
Filed: 1954-12-28
Abstract: 780,344. Paper bags. NATRONZELLSTOFF-UND PAPIERFABRIKEN AKT.-GES. Dec. 28, 1954 [Dec. 28, 1953], No. 37455/54. Class 94(2). [Also in Group XXX] Bottom closures for single or multi-ply paper bags of the kind described in Specification 443,920 are formed by opening out the tube end in known manner, to produce the formation shown in Fig. 2 and creasing and applying adhesive to it, folding up side flaps 26,27, Fig. 5, folding upwardly and outwardly inner parts 39 of corner flaps 28, 29, Fig. 10, and folding down the side flaps into overlapping relationship, Fig. 7. The corner tabs 37 so produced may be secured to the infolded side flaps. Apparatus for producing the closure may comprise two beds 10, 10a, Figs. 11, 12, for closing both ends of the bag, which is received in the form shown in Fig. 2 but with adhesive applied, and traverses the apparatus at right angles to its length. Creases 34, 35 are applied by scoring wheels 131, 131a and the side flaps 26, 27 are folded up by rails 132a, 132d. During the operations above the bag was moved continuously, but it is next forwarded by conveyers 133, 133a, giving it an intermittent motion (see Group XXX), to folding heads for forming the tabs 37. Each corner tab requires s separate forming head, these heads being adjustably mounted on arms 74. One head is omitted so that a fold for a valve is produced at one corner. Each head comprises a presser 69, for holding down a<SP>1</SP> past 28<SP>1</SP> of the corner fold, and a suction cup 63, which, having gripped the inner part of the corner fold, pivots to a vertical position, Figs. 18, 19. Plates 78, 78a, Fig. 21, then sweep inwardly to fold the flaps 26, 27 with overlapping relation. The plate 78 which folds in the overlying flap 26 may have pivoted members adjacent its ends, Figs. 22, 23 (not shown) for stretching the flaps and producing sharp folds at its junction with the corner tab or tabs. The suction cup may now be returned to horizontal, folding the tab 37 onto the flaps 26, 27, and air pressure applied to the cup to press the tab down. Cover strips may be secured to the closures by conventional means (not described).
Patent GB-1223473-A (GB)
Title: Process for the preparation of polymerization products
IPC: B29C39/08
Filed: 1968-08-06
Abstract: 1,223,473. Centrifugal casting. STAMICARBON N.V. 6 Aug., 1968, No. 37534/68. Heading B5A. Articles of synthetic polymers are produced by rotating a heated mould about an axis external of the mould, the mouth of the mould being directed toward the axis, rotation being of such a speed as to cause the liquid polymerization mixture to be fed to the mould by centrifugal force. As shown in Fig. 1, a furnace 1 supplied with heaters 2 contains a plurality of moulds 3 mounted on plate 6 and clamped thereto by plate 4 and bolts 5. The assembly is rotatably mounted on shaft 7 in bearings 8, 9 and rotated by motor 11. Tube 16 feeds material to feed chamber 15 connected to mould cavities 13 by channels 14, into which it is fed from the chamber 15 by the centrifugal force. In a modification (Fig. 2, not shown) the cavities have removable base-pieces 19 so that, after polymerization, the articles can be ejected centrifugally.
Patent GB-895871-A (GB)
Title: An improved method of and apparatus for processing articles such as circlips
Inventor: MAUDE STANLEY MORGAN
IPC: C21D1/63
Filed: 1959-11-05
Abstract: 895,871. Rotary conveyers. ANDERTON SPRINGS Ltd. Nov. 28, 1960 [Nov. 5, 1959], No. 37550/59. Class 78 (1). Circlips from furnace 9 fall down shoot 7 on to the rim 2 of conveyer wheel 1 rotating on and about inclined shaft 5. The rim 2 is channelshaped as shown and carries the circlips up through salt bath 8 till they are discharged by gravity on to shoot 10, are washed by spray 18, and slide down shoot 10 on to discharge conveyer 11. Heating means may be used to assist the discharge of the circlips from the wheel 1. Fig. 4.-The wheel may be made of wire mesh supported by rods 14 carried by annular rails 15, the rails being supported and driven by pulleys 13. A number of conveyer wheels may be used in series.