baber/WOPTO huggingface dataset:
Patent GB-283521-A (GB)
Title: Improvement in circuit-breakers and similar switch apparatus for electric power current lines
IPC: H02B11/24
Filed: 1927-12-28
Abstract: 283,521. Jacobson, 0., and Gylling, A. O. Jan. 12, 1927, [Convention date]. High-tension switches; cases and covers; contacts.-In order to prevent the live contacts of a switch from being accidentally touched when the switch casing is opened the operating handle is interlocked with the lid of the casing and an earthed shield is lowered over the live contacts during the switch opening movement, the shield being linked to the switch operating mechanism in such a manner that in the initial portion of the switch opening movement the movement of the shield is small relatively to the movement of the contact members. As applied to a triple pole switch-fuse the fuses 12 forming the movable contacts are pivoted at their lower ends in insulated brackets 8 connected to the high tension terminals 17 of a transformer and provided at their upper ends with knife blades 11 adapted to co-operate with fixed insulated contact clips 4. The insulating fuse bodies 12 are clamped between bars 15 which are connected by links 23 to crank arms 22 on an operating shaft 18 having one end projecting through the side of the casing 1 and carrying an operating handle 21. The casing 1 is provided with a lid 3 hinged at 2 and provided with an arc-shaped plate 28 interlocking with a slotted disc 20, so that when the switch is closed, as shown in Fig. 5, the plate 28 engages the disc, preventing the opening of the lid, but when the switch is opened the plate 28 can pass through the slot 27 in the disc 20 and the slot 30 in the side of the casing 1. Thus the switch is held from movement with the casing open and shield the terminal 4 which are connected to the incoming cable 16 an earthed metal hood 25 pivoted at 26 is provided, this hood being operated from the shaft 18 bv links 24 connecting it to the cranks 22. The linkage between the operating shaft and the pivoted hood is such that the movable contact blades are well clear of the fixed contacts before the hood is appreciably lowered over these contacts. Projections on the casing and lid may be provided for padlocking the handle 21 in the " on " or " off " positions.
Patent GB-628332-A (GB)
Title: Improvements in an apparatus for bending a bimetallic article
IPC: B21D5/14
Filed: 1946-11-27
Abstract: 628,332. Making compound brakes, bearings, clutches, &c. BURGESS, A. F. (Wellman Co., S. K.). Nov. 27, 1946, No. 35178. [Classes 83 (ii) and 83 (iv)] Tapering by rolling.-Bimetal strip, for brakes, bearings, clutches, &c., e.g. a sintered face on a harder backing or the like, is curved between conical rolls 6, 7, co-operating with yieldable predetermined constant pressure, the convex surface of one acting as a mandrel. The pressure varies laterally across the strip, simultaneously tapering it to frusto-conical form by thinning the softer metal according to the method disclosed in Specification 628,383. In modifications the fluid pressures are adjusted for equal roll end pressures; wedge-section strips may be rolled rectangular; and strips having concave sintered faces may be produced. Driving-gear.-A single electric motor drives the upper roll 7 through a universal coupling 14 and is reversible by foot-switches operated through a selector switch. A friction-ratchet, spring-controlled, over-running clutch, see Fig. 8, not shown, permits hand rotation of the lower idle roll 6 to start the feed in either direction. Pass adjustments.-The roll 7 is automatically adjusted for producing constant thickness by rods 72, 104 downwardly urged by pressurecylinder diaphragms 46, 101. Long nuts 77, 100 join the rods 72, 104 for initial pass setting in conjunction with bolts 84, 110 supporting the bearing blocks 29 having spherical ball seatings. The roll ends are differentially pressed for tapering as controlled by hand-operated valves 61, 99 and relief valves A, B. Rolls.-The lower roll 6 is freely mounted on. a fixed, inclined axle 107 and has a channel 163, see Fig. 9, with minor vertical sides 164, 167 and major sides 166, 168 outwardly tapering at 4 to 15 degrees to. define the strip path and allow lateral expansion of the sintered material 169 on the hard backing 171. Operation. The strip is inserted between the rolls 6, 7 and fed by rotating the idle roll 6 through the correct clutch handle, the rolling being reversed as necessary until the concave strip side conforms to the lower roll curvature. Powder metallurgy.-A composition for sintering at 100 to 250 lb. per sq. inch pressure and 1425‹ to 1510‹ F. temperature for brakes and clutches is mould compressed at 11 tons per sq. inch, and comprises tin 5.31 per cent, lead 8.72 per cent, iron 7.21 per cent, carbon 7.08 per cent, silica 4.42 per cent and copper 67.26 per cent by weight on a copper or steel backing copper or nickel plated to 0.0002 inch. A mixture for bearings contains 6.36 per cent tin, 13.64 per cent lead, 9.1 per cent carbon, and 70.9 per cent copper, sintered at 1300‹ F. The strip may be cut from sheet or sintered to shape.
Patent GB-480626-A (GB)
Title: Improvements in or relating to tables
IPC: A47B3/12
Filed: 1936-12-22
Abstract: 480,626. Tables. HUGGINS, G. F. Dec. 22, 1936, No. 35191. [Class 52 (iii)] A table adapted to be collapsed by disassembling the parts comprises two support members 1, 2 slotted to interlock at rightangles and provided with diametrically opposed inturned flanges 6, and a table top 5 having a wavy periphery so that it can be placed in position on the supports and on partial rotation is locked by the flanges.
Patent GB-1012648-A (GB)
Title: A new or improved tyre-studding tool and method of using the same
IPC: B29D30/66
Filed: 1963-09-06
Abstract: 1,012,648. Inserting studs in tyres. FAGERSTA BRUKS A.B. Sept. 6, 1963 [Sept. 12, 1962], No. 35351/63. Heading F2S. A tool for providing vehicle tyres with studs to prevent skidding comprises a pointed-ended expander bit 3 with a handle 1 and which is a sliding fit within the bore of a sleeve 5 provided with a reduced, thin-walled, end portion and a handle 4. In order to insert a stud 6 into a tyre 7 the bit 3 is passed through the sleeve 5 and pressed either into a preformed hole 8 in the tyre or into the latter to form a hole 8, the boss 2 on the handle 1 acting as a stop against the sleeve 5 which has not yet been inserted into the tyre. The handle 4 is then pressed down until the whole of the thin-walled portion of the sleeve 5 enters the hole 8 around the expander 3 which is then withdrawn from the sleeve 5 which meanwhile holds back the wall of the expanded hole 8. The stud 6 is then introduced into the sleeve 5 and pushed into the bottom of the hole 8 by the expander 3 which is re-introduced into the sleeve 5 and pressed downward while the sleeve 5 is lifted out of the hole 8 so that the latter collapses about the stud 6 to hold it firmly in the tyre 7.
Patent GB-357425-A (GB)
Title: Carbonizing process and apparatus
IPC: C10B7/10
Filed: 1930-11-24
Abstract: 357,425. Carbonizing process and apparatus; fuel briquettes. TRENT PROCESS CORPORATION, 17, Battery Place, New York, U.S.A. Nov. 24, 1930, No. 35374. Convention date, Nov. 26, 1929. [Classes 50, 55 (i), and 55 (ii).] In a carbonizing process, hot carbonized coal is added to raw pulverized coal to retard agglomeration of the coking coal, the re sultant mixture being heated to a carbonizing temperature and then cooled with water, the steam from which is passed through the charge. Suitable apparatus comprises a series of tubular retorts each having a worm conveyer 28 mounted on a hollow perforated shaft 29 which serves as a vapour or gas outlet to collecting mains 31. The rows of retorts 14 .. 23 are in an upper chamber 4, and are externally heated by combustion products from conduits 7 and a perforated partition 9, the rows 24 .. 27 being in a cooling chamber 5 containing water, the steam from which passes through holes in the retorts 24 and through the charge. Raw fuel, which may be mixed with carbonized fuel, is fed from a hopper 33, and when in a hot carbonized state is mixed in retort 18 with raw fuel from a lower hopper 35. If the carbonized fuel is to be briquetted a binder such as oil or pulverized bituminous coal may be introduced through a conduit 41, this binder being partially distilled.
Patent GB-761572-A (GB)
Title: Improvements in or relating to gang mowing machines
Inventor: FITZPATRICK GEORGE GUTHRIE MIL
IPC: A01D75/30
Filed: 1953-12-21
Abstract: 761,572. Lawnmowers. SHANKS & SON, Ltd., A. Dec. 20, 1954 [Dec. 21, 1953], No. 35421/53. Class 6(2). A gang-mower comprises one or more gangs towed by a tractor 13, each gang comprising a pair of mowing units 14, 17 connected in staggered formation to the tractor drawbar 11 so that the line of traction G on each gang is parallel to and midway between the lines of pull B<SP>1</SP>, B<SP>2</SP>, which would be exerted on the individual units if coupled separately to the drawbar. When two or more gangs are employed, the axle of the forward mower 17 of one gang is arranged to be collinear with the axle of the rear mower 14 of an adjacent gang. Each rear unit is towed by an extension 16 of the axle of the forward unit.
Patent GB-853204-A (GB)
Title: Improvements in feed appliances for use with circular saws
IPC: B27B27/00
Filed: 1957-11-14
Abstract: 853,204. Sawing. CHUGG, J. Nov. 13, 1958 [Nov. 14, 1957], No. 35457/57. Class 145. A fence for a circular saw is adjustable about three mutually-perpendicular axes and has two depressible gauges 13, 15 for use in slot or dovetail cutting. The fence plate 1 is adjustable about a horizontal axis on a back plate 2 by means of a pin and slot connection and blocks 2b and the back plate has curved wings 2a slidable vertically and arcuately in a slideway 3 which is adjustable about clamping pins 21 on pillars 4a rising from a base 4. The face plate is held centrally on the back plate by an adjustable slide 18 engaging a pin 19 and the back plate can be held in its angularly adjusted position in the slideway 3 by adjustment of stops 20 on the clamping pins 21. The fence plate carries a pair of work supports 10, 10a, one on each side of a saw slot 25, and a pair of gauges 13, 15 on adjustable slides 12, 14 on the support 10 are slidable vertically against the action of a light spring 16. The base may be secured to a saw bench or may itself form the bench. In use, a workpiece on the supports 10, 10a is placed against the first gauge 15 and the fence plate is moved down the slideway 3 against the action of a spring 6 until an adjustable stop 8 determines the depth of cut. The fence plate moves back under the spring action and, after depressing the gauge 15, the workpiece is moved up to the second gauge 13 and a second cut made. The material between the cuts is then removed by one or more saw cuts.
Patent GB-1436180-A (GB)
Title: Process for contactless and material independent temperature measurement on surface
IPC: G01J5/00
Filed: 1973-07-25
Abstract: 1436180 Radiation pyrometers BBC BROWN BOVERI & CO Ltd 25 July 1973 [27 July 1972] 35479/73 Heading G1A The temperature of a surface is measured or regulated by utilizing an IR pyrometer to achieve radiation balance between the surface and a heated compensating radiator arranged to form a closed cavity with the surface, the pyrometer having a rotating unilaterally mirror surfaced vane which alternately passes radiation from the surface and reflects radiation from the compensating radiator to a detector, zero value of the alternating signal component being a criterion of temperature equality between the test surface and the compensating radiator. As shown, Fig. 1, the pyrometer comprises a reference radiator 1 having a cavity within which is mounted a rotating vane 2 the surfaces facing the object 4 being blackened and the opposite surfaces having a mirror finish. A channel 6 in block 1 conducts IR radiation to a detector 5 via an IR conductor 6'. Alternatively the detector may be mounted within the block 1. The cavity may be closed by an IR transparent window 9 and its inner surface may be blackened. As the vane rotates the detector alternately receives radiation direct from the object 4 and from the radiator 1 reflected by the mirror faces of the vane. The resulting signal is synchronously demodulated to produce an output which controls the current applied to a heating winding 7 to bring the reference radiator 1 to the same temperature as the object 4, this temperature then being determined by a contact thermometer 8. Alternatively the 'reference radiator 1 can be held at a desired temperature and the output signal used for process control of the object 4.  The system may be used for the measurement of the temperature at a selected point on a rotating object. This is achieved by rotating the vane 2 at a lower speed than the object and sampling the output of the synchronous demodulator at times corresponding to the passage of the selected point.
Patent GB-1517469-A (GB)
Title: Device for focusing light using a deformable reflecting surface
IPC: G02B27/09
Filed: 1976-08-26
Abstract: 1517469 Modulating light COMPAGNIE GENERALE D'ELECTRICITE SA 26 Aug 1976 [8 Sept 1975] 35486/76 Heading G2F A light focusing mirror assembly with a deformable reflecting surface, comprises a rigid support plate I having cooling ducts 2, 3, 4 therein, and at least one mirror part 6 made of Piezo-electric material, part 6 having a top face carrying a metallic reflecting layer 10, which also constitutes a top face electrode, and being mounted on said support plate with a bottom face electrode 12 therebetween, the electrodes being arranged to be connected to a source 18 of electric signals whereby the Piezoelectric material and hence the reflecting surface of the assembly may be deformed. The mirror assembly may comprise a plurality of Piezo-electric mirror parts 6, 7, 8 disposed side by side on the support plate and acting to focus light to a common point. Alternatively, a single mirror part (23) Fig. 2 (not shown), may be provided, said single mirror part having a plurality of bottom face electrodes (26). The Piezo-electric material may consist of monocrystalline lithium niobate, the metallic reflecting layers 10 consisting of gold. The electric signal source 18 may be constituted by an electronic control system having an input 20 connected to a photo-electric detector 19 placed to receive the focused light.
Patent GB-1348769-A (GB)
Title: Multiphase control circuit welding system
IPC: G05F1/455
Filed: 1971-04-19
Abstract: 1348769 Welding systems WELTRONIC CO 19 April 1971 [9 March 1970] 35488/63 Divided out of 1345022 Heading H2H The description is identical to that disclosed in the parent Specification but the claims are directed to a system for controlling the supply of energy from a multiphase electrical power source to a welding load, the system including a controllable device, e.g. a thyristor in each phase circuit, a separate firing circuit for each device, timing circuits associated with the source and with respective firing circuits and each including a capacitor determining the timing period, and means for providing the capacitor in turn with the same selectable initial charge prior to commencement of timing, the magnitude of the initial charge determining the firing angle of the respective devices associated with the capacitors. Each timing circuit may include a normal charge path for each respective capacitor, the means for providing the capacitors with a selectable initial charge comprising a precharge circuit common to all the timing capacitors which charge may be placed thereon instantaneously. A heat control circuit including a high impedance device to isolate noise signals from the precharge circuit may be provided for supplying the initial charge.
Patent GB-1121791-A (GB)
Title: Oven for curing resin impregnated fibrous mat
IPC: B29C43/32
Filed: 1965-08-19
Abstract: 1,121,791. Curing oven; endless conveyers for furnaces. CERTAIN-TEEDFIBER GLASS CORP. 19 Aug., 1965 [19 Aug., 1964], No. 35683/65. Headings F4B and F4G. [Also in Division B8] In a curing oven for heat curing a binderimpregnated fibrous blanket conveyed therethrough between a pair of foraminous endless conveyer belts 17, 18 formed of wire mesh or like ferro-magnetic material, the lower run of  the upper belt is supported against sagging by a magnetic support positioned above it. The magnetic support comprises magnetized rollers 55, each formed of permanently magnetized cylindrical sections arranged end to end and like pole to like pole along a line extending transversely of the direction of travel of the conveyer. The lower conveyer is supported on rollers 63 and the spacing between adjacent runs of the conveyers is adjusted by four spaced jackscrews 44 mounted on the conveyer frames, each jackcrew having a sprocket wheel 48 at its upper end driven by a chain drive 50 from a single motor 51. A heated treatment gas is passed through the blanket and belts to effect curing of the binder from pairs of inlet and outlet ducts 25 positioned above and below the blanket and partitions 26 are mounted between adjacent pairs of ducts to force circulation of the gas through the conveyers and blanket. The upper ducts 25 may be telescopic to accommodate movement of the conveyer 17.
Patent GB-1012110-A (GB)
Title: Improvements in and relating to power-driven tooth brushes
IPC: A61C17/24
Filed: 1964-09-01
Abstract: 1,012,110. Rotary toothbrushes. PHILIPS GLOEILAMPENFABRIEKEN N.V. Sept. 1, 1964 [Sept. 4, 1963], No. 35734/64. Heading A4K.  A power-driven rotary toothbrush comprises a box-shaped shroud 1 mounted on a stem 2 and housing several disc-shaped brushes 3, 4 supported on shafts 5, 6 extending parallel to the stem 2. The shroud 1 is open at one side through which the brushes 3 and 4 protrude and has a hinged door 7 at the side opposite its open side to facilitate cleaning the brushes. The door 7 has a stiffening rib 12 on its inner surface which rib projects at the side opposite to the hinge to form a locking lug.
Patent GB-894300-A (GB)
Title: Improvements in or relating to radiators
IPC: F24H9/12
Filed: 1958-11-07
Abstract: 894,300. Radiators and convection air heaters for buildings. HENNINGSSON, T. L. Nov. 7, 1958 [Nov. 12, 1957], No. 35822/58. Classes 64(2) and 64 (3) A radiator comprises an upright hollow panel 10 along the lower edge of which extends a hot water pipe 16 formed near its inlet end with an injector portion and near its outlet end with an ejector portion, so that a proportion of the hot water flowing through the pipe is circulated through the panel. Hot water passes to and from the pipe 16 by way of inlet and outlet pipes 40, 42 connected to the pipe 16 by resilient joints 34, 36 which permit relative expansion of the fluid carrying pipes and also function as trunnions allowing the radiator to be pivoted outwardly about the longitudinal axis of the tube 16 for cleaning and like purposes. In the form shown the panel is adapted to cover a recess in a wall so that air is heated in flowing through the space 12 between the panel and the recess and is discharged near the upper end of the panel through adjustable openings 44. A corrugated plate 58 may be screwed to or loosely supported behind the hollow panel to assist heat transfer to the air.
Patent GB-907670-A (GB)
Title: Improvements in or relating to a process for the liquefaction of gases
IPC: F25J1/02
Filed: 1960-10-19
Abstract: 907,670. Liquefaction of gases. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Oct. 19, 1960 [Oct. 21, 1959], No. 35832/60. Class 8(2). Liquefaction of natural hydrocarbon gas is effected by forcing it at between 2 and 50 atmospheres pressure by a compressor 2, Fig. 1, through heat exchangers 8, 10 and 12 in series traversed by reversely flowing cold nitrogen supplied to the last exchanger 12 in the liquid phase by a pump 16 drawing from a liquid nitrogen container 15; the so liquefied natural gas being expanded to atmospheric pressure at a valve 13 and fed to a storage container 14. Vapour from the gas space of the container is fed through a duct 24 to heat exchangers 7, 9, 11 traversed by the incoming natural gas. In a modification the natural gas is forced by a compressor 31, Fig. 2, through exchangers 36, 39, 42 and 46 in counter current with cold nitrogen fed in the liquid phase to exchanger 46 by a pump 52. Auxiliary cooling is effected by a closed propane cycle comprising a propane compressor- 56, a condenser 59. expansion valves 61, 65 and exchangers 38. 41 in the cooling circuit of the natural gas. Propane vapour generated in exchangers 38, 41 are returned through ducts 62, 66 and exchangers 60, 64 to the compressor 56. Further cooling of the natural gas is effected by a closed ethane cycle comprising a compressor 70, a condenser 71, expansion valves 75, 77 and exchangers 44, 45 also traversed by the incoming natural gas. Ethane vapour from exchangers 44, 45 is returned to the compressor 70 through ducts 76, 78 and exchangers 73, 74.
Patent GB-944958-A (GB)
Title: Safety device for radar receivers
Inventor: TREEN KENNETH FREDERICK
IPC: G01S7/03
Filed: 1960-10-20
Abstract: 944,958. Pulse radar; combined receiving and transmitting systems. STANDARD TELEPHONES & CABLES Ltd. Oct. 20, 1960, No. 35934/60. Drawings to Specification. Headings H4D and H4L. [Also in Division H1] When a pulse radar comprising a T.R. switch is switched off, the mixer crystal is no longer protected against high energy signals incident on the aerial and according to the present invention damage to the crystal under such conditions is prevented by inserting a ferrite isolator between the T.R. switch and the crystal, means being provided for applying an energizing magnetic field to the isolator when the radar is switched off thereby causing the isolator to attenuate signals travelling from the aerial to the mixer. The energizing field may be produced by (1) a low-voltage source, e.g. an accumulator, controlled by a switch ganged to the switch controlling the radar power supply, Fig. 1 (not shown), or (2) a permanent magnet which is arranged to move so that its field is applied to or removed from the isolator as the radar is switched off or on respectively, Figs. 2 and 3 (not shown, see Division H1).
Patent GB-812584-A (GB)
Title: Electronic image transmitting system
IPC: H04N3/16
Filed: 1956-11-23
Abstract: 812,584. Multiplex pulse signalling. BELTRAMI, A. Nov. 23, 1956, No. 35954/56. Drawings to Specification. Class 40 (5). [Also in Group XL (b)] Sound signals accompanying vision signals in a television system (see Group XL (b)) are transmitted in the form of amplitude-modulated impulses occurring during the line blanking periods. At the transmitter the sound signal is applied to one grid of a normally non-conducting valve whilst a second grid receives an impulse from the line scan generator which causes the valve to conduct and pass a sample of the sound signal to the anode circuit where it is combined with the vision signal. A similar circuit at the receiver separates the sound impulses from the combined sound and vision signal and applies them to a sound reproducer