baber/WOPTO huggingface dataset:
Patent GB-871511-A (GB)
Title: Vapor phase process for the manufacture of diphenylamine
IPC: C07C209/64
Filed: 1957-09-17
Abstract: The process of the parent Specification for the production of diphenylamine is modified in that undiluted aniline vapour at a pressure between 100 and 200 lbs./sq. inch gauge is passed in continuous manner into a reaction chamber maintained at 400-550 DEG C. and containing a non-base-exchanging catalyst, such as activated alumina or titania, which has a surface area greater than 100 square metres per gram.  A preferred catalyst may be obtained by precipitating alumina from sodium aluminate solution with acid, and igniting the alumina gel to form an amorphous non-cyrstalline alumina with a surface area of from 100 to 400 sq. metres per gram.  In one example, aniline vapour at 445 DEG C. is passed continuously into a reaction chamber maintained at 480 DEG C. and containing activated alumina, and the product is passed to a condenser and thence to a storage tank.  Feed rates of 2,0, 3,2 and 4,0 grams of aniline flowing per hour per c.c. of catalyst, and pressures from 100 to 140 lbs./sq. inch gauge are specified.  The yields of diphenylamine obtained under various conditions of operation are indicated graphically.
Patent GB-1116659-A (GB)
Title: Electric component with built-in thermal regulation
IPC: H03F1/30
Filed: 1965-07-09
Abstract: 1,116,659. Electric solid-state devices; circuit assemblies. J. ROYER, and R. CHARBONNIER. 9 July, 1965 [9 July, 1964; 2 March, 1965], No. 29278/65. Headings H1K and H1R. A body of a resistive material whose resistance changes abruptly at a particular temperature and which has a positive temperature coefficient in a narrow temperature range including this temperature will, if energized by a suitable voltage, generate more heat than is lost to the surroundings when below the minimum temperature of the range and less than is lost to the surroundings when above the maximum temperature of that range. Such a body is selfthermostatic. The invention proposes the use of a block of such material to maintain one or more circuit elements (transistors, diodes, resistors, capacitors) or an integrated circuit at a required temperature. In Fig. 2 (not shown), transistors are secured-thermally in contact, but electrically insulated-to a block of the resistive material and the assembly housed in an enclosure providing terminal connections both for the transistors and the block. As shown in Fig. 3, the metal base 10 of an enclosed housing supports a disc 24 of sintered glass or synthetic resin. This in turn supports the resistive block 23 which may be made of BaTiO 3 , (Ba, Sr) TiO 3 , (Ba, Pb) TiO 3 , (Na, K) TaO 3 , or KNbO 3  doped with Sb, W, Nb, Zr, Yt, Ce or La. Above this is a thin disc 36 of thermally conductive electrically insulating material such as beryllium oxide or boron nitride, metallized on both faces 'and soldered to the metallized upper face of the block 23 and to the collector zones of the transistors 42, 44-the upper metallizing being broken at 38 to isolate the transistors. The disc 36 may be omitted and the transistors secured by adhesive to the block 23. Regulation to within a few degrees C is possible with constant energizing voltage to the resistive block. More precise regulation can be attained by making the voltage a linear function of ambient temperature, with a suitable negative temperature coefficient.
Patent GB-959370-A (GB)
Title: A new or improved mechanical-electrical transducer
Inventor: GROUT JOHN ARTHUR MUNFORD
IPC: G01R17/08
Filed: 1959-08-27
Abstract: 959,370. Measuring electrically. GEORGE KENT Ltd. Sept. 19, 1960 [Aug. 27,1959], No. 29329/59. Heading G1N. A transducer comprises a coil 1 suspended between the poles of a magnet 7 by a pair of helical strips 2, 3 which, when placed under tension tend to rotate coil 1, and means for feeding a . current to the coil to produce a force tending to counteract the rotation, so that at equilibrium the current fed to the coil is proportional to the tension in the strips. Angular displacement of coil 1 moves the core of a centre-tapped coil 9 to produce an error signal which is amplified at 10 and fed through strips 2, 3 to coil 1, and through ammeter 13. The magnetic field may be constant (produced by a permanent magnet or a D.C. energized winding), or may be produced by energizing a coil in series with coil 1, or by energizing a coil with current proportional to a second variable. The current through ammeter 13 is then proportional to the applied force, to its square root, or to the quotient of two variables, respectively. The second arrangement may be used in a flow-meter of the differential pressure type.
Patent GB-1263019-A (GB)
Title: Indirectly heated thermionic cathode
IPC: H01J1/28
Filed: 1970-06-17
Abstract: 1,263,019. Thermionic cathode constructions. LICENTIA PATENT VERWALTUNGS G.m.b.H. 17 June, 1970 [1 July, 1969], No. 29391/70. Heading H1D. An indirectly heated cathode comprises a heating element 1 mounted in a cavity within the cathode 3 and a pink ruby sleeve 2 lining the cavity. In a dispenser cathode the sleeve may have an opening adjacent the emissive material 4 which is closed by a cover of sapphire, ruby or quartz. The heating element comprises a multiple coil with a coating of Al oxide.
Patent GB-387298-A (GB)
Title: A method of and apparatus for the centrifugal treatment of liquids
IPC: B04B1/12
Filed: 1932-10-20
Abstract: 387,298. Centrifugal machines. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. Oct. 20, 1932, No. 29405. Convention date, Nov. 11, 1931. [Class 23.] A centrifugal separator 1 continuously discharges separated liquids and is provided with peripheral nozzles 12 for the discharge of separated solids. The amount of separated liquid flowing out with the solids is limited by means of an additional liquid which does not flow through the bowl. This liquid is supplied through channels 5 and passes inwards through nozzles 13 which are arranged opposite the nozzles 12. It passes with the solids discharged from the nozzles 12 through the outlet passages 15. The pressure of the additional liquid supply can be regulated to obtain any desired flow in or out of the nozzles 12 but it is preferred to permit a slight -outward flow. The sectional area of the nozzles 12 is greater than that of the nozzles 13 and the outer ends of the nozzles 12 are funnelshaped.
Patent GB-483505-A (GB)
Title: Improvements in or relating to non-visual trichromatic colorimeters
IPC: G01J3/46
Filed: 1936-10-29
Abstract: 483,505. Photo - electric colorimeters. GENERAL ELECTRIC CO., Ltd., PALMER, E. H., and WINCH, G. T. Oct. 29, 1936, No. 29435. [Class 40 (iii)] Relates to non-visual trichromatic colorimeters of the type comprising (a) three photoelectric " linear " receivers each having a different sensitivity curve, (b) three reading instruments each giving deflections respectively proportional to the currents from the receivers, (c) means for adjusting the ratios of the deflections produced by light from any one source so as to give to these ratios any assigned values within some continuous range, and (d) means for varying in the same ratio the deflections produced by light from any source under examination. According to the invention, the pointers of the three reading instruments are all straight lines which, in their'zero positions, intersect in pairs at the corners of an equilateral triangle, and each of which, when they are deflected, moves perpendicularly to its 'length towards the centre of the triangle. Thus, if the height of the triangle is taken as unity, when all three lines constituting the pointers intersect at a point within the triangle, the sum of the deflections will be 1. If the means (c) are adjusted at the outset, (e.g. by varying the effective sensitivity of the galvanometers), so that when the three lines intersect at a point the deflections have a known relation to the trichromatic coefficients for light from a standard source, when any other source is substituted the deflections will give the desired values for the substituted source if means (d) are varied (e.g. by varying the distance of the source from the photo-electric receivers) until the pointers again intersect at a common point. In apparatus described, embodying the invention, three selenium cells (not shown) of known type, covered with three different colour filters, are placed close together facing the position of the light sources to be tested. Fig. 3 shows how three reflecting galvanometers 1, associated respectively with the cells, are located. With each instrument, there is provided an illuminated slit 2, a cylindrical lens 6, a prism 5 reflecting light from the slit on to the galvanometer mirror, and a rotatable prism 8, so that 'an image of the slit is formed on a screen (not A triangle having scales as shown in Fig. 1 is marked on the screen, and by suitable arrangement of the 'optical systems and by adjustment of the prisms 8, the undeflected image of the slits are made to coincide with the respective sides of the triangle. Deflections are indicated by graduations on the perpendiculars within the triangle. Alternative arrangements of the means (c) and (d) referred to above are described, and details as to the choice of colour filters for a particular type of cell are given.
Patent GB-1335868-A (GB)
Title: Nozzle for feeding molten metal in the continuous extrusion casting of strip
IPC: B22D11/06
Filed: 1971-06-23
Abstract: 1335868 Continuous casting PROLIZENZ AG 23 June 1971 [24 June 1970] 29483/71 Heading B3F [Also in Division F4] A nozzle 13 for supplying molten Al or Al alloys to a strip casting mould with continuously moving walls has an insert 32 of graphite or boron nitride near its outlet 14 and protruding from the surface by about 0À2 mm.-0À3 mm. The insert, which may be continuous or discontinuous, is glued into grooves formed in the nozzle. The latter comprises two plates 25 made of a refractory mixture of diatomaceous earth, asbestos fibres and calcium silicate and held by a two-part support 12 made of machined cast material having a low coefficient of expansion. The support is attached to a tundish 11 by flanges 21. The plates 25 are formed with distance pieces 26, 27 and 28 through which they are bolted together.
Patent GB-171875-A (GB)
Title: Improvements in and relating to hand fire extinguishers
IPC: A62C11/00
Filed: 1920-10-19
Abstract: 171,875. McAuliffe, E. G., and Gregson, G. A. Oct. 19, 1920. Delivery pipes. -In a hand fire-extinguisher having the pump 2 delivering into a discharge tube 8 beside it, a normally open valve 11 is arranged to close the discharge tube against leakage when the pump piston is pushed in to the limit. The liquid, instead of passing direct from the opening 10 to the nozzle, may pass through a bent tube 15 as an additional safeguard against leakage, and the tube 15 may be carried once round the container 1. The invention may be applied to extinguishers of the kind described in Specification 161,610.
Patent GB-1000380-A (GB)
Title: Improvements in or relating to the manufacture of warp-knit fabrics from two yarn systems
IPC: D04B21/00
Filed: 1962-08-01
Abstract: 1,000,380. Knitting. ONDERZOEKINGSINSTITUUT RESEARCH N.V. Aug. 1, 1962 [Aug. 3, 1961], No. 29550/62. Heading D1K. Fabric is warp knitted from two systems of yarn by causing, during each cycle of the machine, the yarns 1, 2, 3, 4, 5 of one system to form chain stitches over two needles and the yarns 7, 8, 9, 10, 11 of the other system to form inlays over two needles. As shown, the inlays are formed over four needles. The fabric may be made from nylon and one system of yarns may be of a different colour from the other to give an iridescent effect.
Patent GB-1343521-A (GB)
Title: Machine for winding thin wires or threads onto bobbins with end flanges
IPC: B65H54/28
Filed: 1971-06-24
Abstract: 1343521 Traverse control RHEINISCHE FEINDRAHT-INDUSTRIE DR-ING SCHILDBACH KG 24 June 1971 [4 July 1970] 29560/71 Heading D1J A traverse guide roller 2 for winding wire a on a bobbin 1 in side-by-side turns, is carried by a traverse rod 3 driven by rack 3<SP>a</SP> and pinion 4<SP>a</SP> from motor 4<SP>a</SP>, which is reversed as the guide approaches the bobbin flanges by sensors, e.g. pressure-sensitive switches 7<SP>c</SP> connected to compressed air jets 7 mounted on axially slidable rod 6, the jets being moved towards their respective flanges, against the action of springs 5<SP>b</SP>, as the traverse nears its limits, by engagement of a projection 3<SP>b</SP> on rod 3 with adjustable stops 6<SP>e</SP> mounted on rod 6.
Patent GB-289719-A (GB)
Title: Improvements in or relating to telephonic ear-pieces
IPC: H04R25/00
Filed: 1927-11-04
Abstract: 289,719. General Acoustics, Ltd., (Dictograph Products Corporation). Nov. 4, 1927. Earpieces and attachments.-Relates to telephone earpieces of the type adapted to fit on the helix of the ear without other support. An earrpiece 2, Fig. 6, of standard type is fitted with an attachment 3, Fig. 8, to form the combination shown in Fig. 2. The attachment 3 is removable so that the combination can be fitted either to the right or left ear at will. A tubular member 9, Fig. 8, engages in the meatus of the ear and also in a channel 13 bored to connect with a cross-cut channel 14 leading to a hole 7 which coincides with the sound aperture formed in the earpiece 2. The attachment is fixed to the earpiece by pins 4, Fig. 6, fitted with spring rings 5 engaging in holes 6, Fig. 8. It is held in position by the engagement of a projection or hook 16 behind the forward part of the outer helix of the ear.
Patent GB-956716-A (GB)
Title: Sampling of pulverulent materials
Inventor: TAYLOR WILFRED
IPC: G01N1/14
Filed: 1960-08-29
Abstract: 956,716. Sampling pulverulent materials. BIRMINGHAM SMALL ARMS CO. Ltd. Nov. 29, 1961 [Aug. 29, 1960], No. 29663/60. Heading B8N. A device for taking a sample from a pile of pulverulent material, such as coal or ore, comprises a casing 1 mounted on trunnions 2 in a bracket 3, a helical drill 7 terminating in a point 11, e.g. of tungsten carbide, mounted in a self-aligning ball-bearing 8 and driven through a flexible coupling 6 and reduction gear 4, by a reversible electric motor 5, and a cylindrical container 10 secured to the casing and closely surrounding the helix 9 of the drill. and terminating, at its lower end, in an open mouth. The drill is, preferably, provided with a radial curved clearing arm 12. In use, the device is suspended by the bracket 3, e.g. from a crane or hoist, and lowered on to the surface of the material and the motor is started to rotate the drill so that its helix 9 appears to be moving towards the point 11. The weight of the device causes the drill and container to enter the material. The motor is then reversed and the helix 9 carries a sample of the material into the container 10. The motor is then stopped and the device is withdrawn from the material and moved over a receptacle. The motor is again reversed and started and the helix 9 discharges the sample into the receptacle.
Patent GB-1056984-A (GB)
Title: Improvements in and relating to containers for fluid
IPC: B65D23/00
Filed: 1965-07-13
Abstract: 1,056,984. Plastics containers; stoppers. TEPAR A.G. July 13, 1965 [July 20, 1964], No. 29699/65. Headings B8D and B8T. A fluid container comprises a moulded plastics inner enclosure 1 having a cylindrical body portion 2 and two bulged end wall portions 3, and includes a stiff supporting sleeve 4 of cardboard &c., fitting closely around the shell portion and extending beyond one end portion so as to serve as a foot. The other end of the enclosure extends beyond the corresponding sleeve end. The enclosure, which is preferably of an impermeable material, may be composed of two separate parts (Fig. 2, not shown) being joined by fusing around their junction at a flange (7). The flange may be shaped with a downwards extending portion to engage the edge of the sleeve (Figs. 2a, 2b, not shown). A dispensing aperture and closure may also be provided at one end of the container. In one embodiment (Fig. 5, not shown), an annular surface of the container surrounding the aperture and an annular surface of the plug form oblique sliding planes (14) which coincide when the plug is inserted. On rotating the plug the reaction of the two planes lifts the plug from the aperture, freeing a flexible sealing bead (13) at the lower end of the plug from its engagement with the lower end of a collar (11) surrounding the aperture and extending into the container.
Patent GB-598520-A (GB)
Title: Improvements in and relating to wicket doors or gates for rolling shutters and the like
IPC: E06B9/17
Filed: 1945-11-07
Abstract: 598,520. Wicket gates. DENNISON, KETT, & CO., Ltd., and MOSS, D. J. Nov. 7, 1945, No. 29733. [Class 20(iii)] [Also in Group XXV] In a wicket gate 10 for rolling shutters &c. which is hinged at 16 to a fixed support and has a fixed flange, or stop 12 on one face and a hinged movable stop 18 on the other, which engage opposite sides of the shutter 14 when the door is closed, a handle-operated slide member 22 is mounted in guides on the door and connected to the stop 18 by an articulated linkage including a link arm 27, whereby the thrust of the slide member is transmitted to the stop 18 in a direction transverse to the plane of the shutter. In the form shown, two slide members and corresponding linkage are provided connected to two hinged stops and the guides comprise a bracket 25, and slots 23 in a casing 24, both secured to a metal plate 20 extending the width of the door. The slide members have cranked ends and are moved horizontally by pins 35 acting in vertical slots therein, these pins being fixed to a plate 34 rotated with the door handle 33. In an alternative form, rollers at the ends of a handle-rotated arm engage in slots in slide blocks connected to straight slide members. Each of these members is pivoted to one corner of a triangular rocker plate pivoted at its other free corner to a link arm acting directly on a hinged stop. In both cases the parts of the linkage may be so disposed, (as shown), as to render it irreversible to prevent the stops being prised open from the outside. A keyoperated lock may be provided operating on one of the slide members.
Patent GB-289035-A (GB)
Title: Improvements in elevator car platform
IPC: B66B11/02
Filed: 1927-11-07
Abstract: 289,035. Waygood-Otis, Ltd., (Assignees of Hymans, F., and Westlin, C. T.). April 22, 1927, [Convention date]. Cage and platform lifts. -A lift cage having a movable floor has the floor constrained to move vertically and has a threshold moving with the floor, the parts being so constructed that the floor moves only on the application of a load of a desired magnitude. The movable floor 62 has four downwardly projecting studs 48 each fitted with a ball bearing contained in a lubricant retaining recess and resting on the arms 25 of bent levers 24 mounted on a pair of transverse shafts 20. The other arms 26 of the bent levers are connected by links 34 to ensure simultaneous movement and one bent lever has an extension 41 carrying a stop 42 which is normally positioned against the frame by the action of counterweights 37 on levers 36 mounted on the shafts 20. An arm 93 secured to one of the shafts 20 carries a second arm 90 adapted to actuate a switch lever 83 which controls pairs of contacts 85 in the motor control circuit of the lift. When the required weight, either of passengers or goods, rests on the movable floor it moves downwards, the lever system and shafts 20 are correspondingly moved, the counterweights are raised and the switch contacts are opened. Flexible strips 74 are anchored to the movable floor and to the frame to constrain the floor to move vertically and a threshold is mounted on the floor so as to move with it. Specification 172,510 is referred to.
Patent GB-1368597-A (GB)
Title: Piston sealing assembly
IPC: F16J15/3208
Filed: 1973-06-22
Abstract: 1368597 Piston rings A STRAZDINS 22 June 1973 [22 June 1972] 29826/72 Heading F2T In piston packing comprising a ring 8 housed in a groove 6 in the piston 4 and an 0-ring 7 compressed between the ring 8 and the bottom of the groove, the ring 8 has a step 11 in its outer peripheral surface defining a scraping edge 12 lying in a plane which is parallel to the plane 13 containing the 0-ring axis 14 and intersects the contact interface 10 between the 0-ring 7 and the ring 8. Preferably, as shown, the scraping edge 12 lies in the plane 13. A second step 16 is formed in the ring 8 and the 0-ring 7 is located by a spacer ring 15. In a modification, Fig. 2 (not shown), the step 16 and ring 15 are omitted. The ring 8 may be made of nylon or plastics, e.g. P.T.F.E., and it may be applied by stretching or by heating to expand it, followed by water cooling when in position. Alternatively, the ring may be split.
Patent GB-172190-A (GB)
Title: Improvements relating to distance-registering apparatus for vehicles
IPC: G01P1/08
Filed: 1920-10-22
Abstract: 172,190. Brunot, E. G., and Chateau, E. H. F. Oct. 22, 1920. Odometers; centrifugal speed indicators. - The total mileage run by a vehicle and the mileage travelled at above a given speed are registered by separate counters, one of which R is driven through a clutch controlled centrifugally in accordance with the speed. The total counter G is actuated from the vehicledriven shaft A through a spindle B, worm gearing C, D, and a pin. and toothed wheel F. The spindle B carries a crossrod I on which are slidably arranged two sleeves H adapted to slide outwardly under centrifugal action against the pressure of adjustable springs J. When the speed exceeds a predetermined value projections M on the sleeves come within the range of teeth on a wheel O and consequently drive the counter R through this wheel, its spindle P, and worm &c. gearing Q, S.
Patent GB-285186-A (GB)
Title: Improvements in filing appliances for sales bills and other papers
IPC: A47B63/06
Filed: 1926-11-27
Abstract: 285,186. Dunning, W. E., and Bachofen, J. Nov. 27, 1926. Multiple hinges.-A device for filing papers comprises a number of paper-holders 15 hingedly secured together about vertical axes. Each holder 15 is provided on its rear edge with projecting lugs 16, and hinge pins 17 mounted in pairs on heads 17<a> pass through perforations in the lugs on adjacent holders so as tu connect the holders together. The holder of each section situated next to the index frame 10 has pins 14 formed integrally with the lugs 16, and these pins are adapted to enter perforations in lugs 11 fixed to the frame 10 so as to permit of the removal of the sections therefrom.
Patent GB-156978-A (GB)
Title: Improvements in and relating to booms for ships
IPC: B63H9/10
Filed: 1919-12-02
Abstract: 156,978. Suttie, G. D. Grant-. Dec. 2,1919. Spars.-With a view to increasing the effective sail area, the boom is made in two parts, one of which comprises a single beam or two flat beams c separated by distance-pieces, thus leaving a gap which serves to house the second flat member d to which the sail is attached. When the sail is hoisted, the member d is drawn from its housing but is retained in the plane of the member c by a cord threaded through eyes e, d'.