baber/WOPTO huggingface dataset:
Patent GB-1490737-A (GB)
Title: Method and apparatus for sampling a liquid stream
IPC: G01N1/18
Filed: 1974-10-23
Abstract: 1490737 Sampling liquids RUHRCHEMIE AG 23 Oct 1974 [29 Oct 1973] 45782/74 Heading B8N A method of taking intermittent samples of a liquid stream comprises taking off a portion of the stream by a fluidic valve 9 constructed in accordance with the Coanda effect, the samples being taken at the desired frequency by opening the air channel 14 of the valve for periods not exceeding 1/10 second. In apparatus described for performing the method, liquid raised by a pump from a liquid stream 8 normally passes via fluidic valve 9 to a conduit 1 and is returned to the stream. When a valve 10 is opened, the flow divider 11 directs some liquid along conduit 2 to a switching device 3 which distributes the sampled liquid into Imhoff hoppers 4. The hoppers are contained in a chamber 5 having a feed line 6 and a discharge line 7 for a protective gas.
Patent GB-1353840-A (GB)
Title: High voltage schottky barrier device and method of manufacture
IPC: H01L29/872
Filed: 1972-10-04
Abstract: 1353840 Schottky barrier devices MOTOROLA Inc 4 Oct 1972 [22 Oct 1971] 45811/72 Heading H1K A Schottky barrier device, the body of which may comprise as shown a substrate 11 of low resistivity and a region 12 of higher resistivity, is formed by producing an apertured insulating layer 13 on the surface of the body; by coating the entire surface with a lightly doped insulating layer 14 (silicon dioxide) and forming in this layer an aperture concentric with but smaller than that in the first layer 13 so that that residual part of the doped layer 14 in contact with the semi-conductor is a narrow portion of uniform width; by heating the structure to form a guard ring 15 of opposite conductivity type to the body (it is stated that diffusion in the semiconductor occurs more readily downward than laterally); by applying a Schottky barrier metal 20 to the semi-conductor surface and the surrounding portion of the insulation; and by applying a contact layer 21.
Patent GB-1370747-A (GB)
Title: Impeller type water circulating pump
IPC: F04D15/00
Filed: 1972-10-06
Abstract: 1370747 Axial-flow pumps MASCHINENFABRIK ANDRITZ AG 6 Oct 1972 [3 Dec 1971] 46214/72 Heading F1C [Also in Division F2] An impeller-type pump comprises a non-return valve having a series of segmental flaps pivotally mounted such that, in the closed position, the free end of each flap seals against an abutment surrounding the impeller shaft and its lateral edges seal against lateral edges of adjacent flaps. Fig.3 shows a nuclear reactor having an annular passage 5 through which cooling water is circulated by an annular array of pumps 6. If a pump fails or is shut down, back flow through it is prevented by a non-return valve comprising sectorial flaps 14 which move into the brokenline position to abut a bearing housing 17 and close the flow passage through the pump. Each flap 14 may additionally be operable by an hydraulic or electric motor when required, e.g. when the flow-back pressure is small or when it is desired to regulate the rate of flow.
Patent GB-1112877-A (GB)
Title: Improvements in or relating to the production of phosphate coatings on metal surfaces
IPC: C23C22/14
Filed: 1966-10-17
Abstract: Phosphate coatings are produced on iron, steel and/or zinc (including galvanized) surfaces by contacting them, e.g. by spraying at 38-60 DEG C., with a chlorate-accelerated zinc phosphate coating solution, e.g. prepared by dissolving ZnO and preferably NiO in H3 PO4 and adding water and NaClO3, in which nitrite is added, e.g. as NaNO2 or HNO2, to establish and maintain a concenration of 0.03 to 1.0 g/l NO2 to eliminate build-up of ferrous ion.  The solution may also contain Cu and nitrate.
Patent GB-1450921-A (GB)
Title: Method of making a porcupine roller and a porcupine roller produced by such method
IPC: D03D49/20
Filed: 1973-10-04
Abstract: 1450921 Take up rollers GIRMES-WERKE AG 4 Oct 1973 [4 Oct 1972 29 March 1973 1 Sept 1973] 46433/73 Heading D1E Take-up rollers are made by driving pins 3 into holing elements of plastics material 2 permanently attached to a metal tube 1. The plastics material 2 may be in the form of a casing on the tube or as seperate inserts therein.
Patent GB-1330683-A (GB)
Title: Vehicle seat assembly
IPC: B60N2/52
Filed: 1970-10-01
Abstract: 1330683 Resiliently mounted seats; rocking seats C EMPIS 1 Oct 1970 [2 Oct 1969] 46769/70 Headings A4U; A4J In a tractor seat a pivot pin 8, journalled in the seat back 3 for rotation on a horizontal axis, is resiliently supported for vertical movement in a slideway 7, which is fixed to the vehicle, and a blade spring 11 is secured to the pin 8 and to the seat to return the seat to vertical after lateral rocking. The seating surface is of partcylindrical shape concentric with the pin 8, which is supported in cantilever fashion by a slide block 14, guided in the slideway 7 by rollers 15, 16, 17, 18 and rods 21 and resiliently supported by springs 19, 20. A hydraulic shock absorber 22 is provided to damp oscillations. A roller- or ball-bearing journal 9 for the pin 8 is secured to the seat frame 6 and includes a friction device, e.g. a rubber ring, to damp rocking movements and may have limiting abutments. In modifications, shock absorbers are provided at each side of the seat to damp vertical and lateral oscillations, or the fixing points for the shock absorbers and the springs form part of a common member which is displaceable vertically for adjustment to suit the weight of the user.
Patent GB-1528476-A (GB)
Title: Personal fan unit
IPC: F24F1/02
Filed: 1975-11-14
Abstract: 1528476 Headgear W A WATERS 14 Nov 1975 [28 March 1975] 47089/75 Heading A3V [Also in Division F1] Fan unit 10 comprises spaced apertured plates 14, 30. Motor 28 extends inwardly from plate 14, is energised via switch 26 by batteries 22 and carries a fan 38. Ears 16, 18 removably engage pockets or recesses in helmet (48). The unit may be removably secured to a headband (50). Unit (70) is secured by elastic band (93) in bill (88) of cap (90).
Patent GB-1094186-A (GB)
Title: Improvements in or relating to television and like camera cathode ray tubes
Inventor: TURK WALTER ERNEST
IPC: H01J29/02
Filed: 1964-11-19
Abstract: 1,094,186. Image-pick-up tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Sept. 2, 1965 [Nov. 19, 1964], No. 47148/64. Heading H1D. In a television camera tube, e.g. an image orthicon, damping strips made of magnetic material, e.g. nickel, are sandwiched between the charge storage membrane and the adjacent electrode mesh to reduce microphony. Four nickel strips, framing the useful picture area, may be secured to the frame of the mesh electrode, the frame of the glass storage membrane then being clamped thereover.
Patent GB-1512970-A (GB)
Title: Radiant heat fusers for electrostatic copiers
IPC: G03G15/20
Filed: 1975-11-17
Abstract: 1512970 Fuser for toner images REX ROTARY INTERNATIONAL AS 16 Nov 1976 [17 Nov 1975] 47288/75 Heading B6C The fuser is of the kind in which a copy sheet C bearing toner images is fed over a bed A towards which radiant heat from a lamp 1 is directed by a reflector 2. Cooling air admitted to the bed A is sucked via an air port 21 to an outlet passage 19 connected to a suction source. Bimetallic strips 23 thermostatically control the opening and closing of metal strips 22 that throttle the cooling air flow through the port 21, hence controlling the temperature of the bed A.
Patent GB-1355442-A (GB)
Title: Liquid developer for electrophotography
IPC: G03G9/135
Filed: 1971-10-11
Abstract: 1355442 Electro-photography FUJI PHOTO FILM CO Ltd 11 Oct 1971 [12 Oct 1970] 47302/71 Heading G2H A liquid developer comprising toner particles dispersed in an insulative carrier liquid contains a copolymer of a half-C 6-24  alkylamide of maleic acid and diisobutylene as charge control agent in an amount of 0À0003-0À5 parts per 1000 parts of carrier liquid. The liquid developer contains 0À5-50 parts of toner per 1000 parts of carrier liquid and has an electrical resistivity (measured in the absence of toner) of at least 5 x 10<SP>10</SP> ohm cm. The ratio of half-alkylamide to diisobutylene may be 1:1 to 1:5. The number of monomeric units in the copolymer may be 4-50. The developer preferably also contains an organic acid. A soluble resin may be employed as fixing agent; or the toner may comprise resin formed in the presence of pigment.
Patent GB-1462760-A (GB)
Title: Rotary electric machines including fault detection apparatus
IPC: G01R31/34
Filed: 1973-10-10
Abstract: 1462760 Testing electric motors TEIKOKU DENKI SEISAKUSHO KK 10 Oct 1973 [11 Oct 1972 9 Feb 1973] 47328/73 Heading G1U Vibrations of the rotor of an electrical motor are sensed by pick-up windings appropriately located in the stator, whose output signals are combined in such a way that the signal components at the supply voltage frequency are eliminated, leaving components representing vibrations due e.g. to mechanical wear, or current imbalance in the field windings. As shown for a 2-pole motor with radial air-gap (Figs. 2 and 3) comprising a rotor 15 with squirrel cage winding 17, the stator 6 in addition to field windings 9 in slots 7 has two similar pick-up windings 10, 11 symmetrically located in diametrically opposite slots. It is shown that when the pick-up coils are connected in series the resulting A.C. voltage has an amplitude proportional to the variations in the air-gap 13 between the rotor and the stator. The pick-up windings may be similarly used with a motor having an axial gap between the rotor and stator, and the optimum positions for the pick-up windings for a 4-pole motor are discussed.
Patent GB-1235860-A (GB)
Title: Improvements in or relating to upholstery cushion
Inventor: BLUNT GEORGE
IPC: A47C31/02
Filed: 1967-10-18
Abstract: 1,235,860. Cushions. VITAFOAM Ltd. 17 Jan., 1969 [18 Oct., 1967], No. 47344/67. Heading A4M. A foam plastics cushion pad 6 is formed with an array of slits (11) which extend throughout or substantially throughout the thickness of the pad, each slit receiving a button 13 anchored by a cord 14 and disc 16, the buttons 13 serving to draw a cover 12 into the slits to form pleats 15 in the cover and simultaneously contain the pad surface. The slits (11) may be of cruciform shape to produce square or diamond pleating, or may be straight slits to produce parallel pleats.
Patent GB-1002047-A (GB)
Title: Method for manufacturing printed circuits
IPC: C23F1/46
Filed: 1962-12-17
Abstract: 1,002,047. Etching. BLAUPUNKT-WERKE G.m.b.H. Dec. 17, 1962 [Dec. 21, 1961], No. 47425/62. Drawings to Specification. Heading B6J. In a method for producing printed circuits by etching copper foils laminated with plastic baseplates with cupric chloride, the etching bath is regenerated continuously or intermittently by adding a complex-former such as sodium chloride to dissolve the cuprous chloride formed in the etching reaction, an oxidizing agent such as oxygen gas or hydrogen peroxide, and chlorine ions in the form of chlorine gas or hydrochloric acid. The complex-former and oxidizing agent may be added in combination in the form of sodium chlorate. The adding of the regenerating substances may be carried out under the control of a pH measuring device and a photo-cell detecting the colour of the etching liquid. Excess etching liquid and running water are led into a tank to which a soda solution is added so as to recover cupric chloride.
Patent GB-1378741-A (GB)
Title: Liquid scintillation counting techniques
IPC: G01T1/204
Filed: 1970-10-06
Abstract: 1378741 Uses of luminescence DEFENCE SECRETARY OF STATE FOR 6 Jan 1972 [6 Oct 1970] 47434/70 Heading C4S  γ-Radiation of less than 100 kEv. from a radio-active sample is measured using a metalloaded liquid scintillator. The scintillator comprises tetrabutyl tin, PPO and/or POPOP in toluene or dioxan. Tritiated n-hexadecane or naphthalene may be added to reduce quenching. The scintillator may be sealed between the walls of a double-walled container having first been deaerated with N 2 . A sample is placed in the scintillator directly or in a vial of plastics material or glass. Liquid samples are absorbed in carbon cloth or carbon impregnated glass fibre pads.
Patent GB-985230-A (GB)
Title: Valve for use in hydraulically operated vehicle steering mechanisms
IPC: B62D5/083
Filed: 1962-12-17
Abstract: 985,230. Power assisted steering of vehicles. BURMAN & SONS Ltd., and W. H. BRIGGS. Dec. 13, 1963 [Dec. 17, 1962], No. 47441/62. Heading B7H. A valve for use in a vehicle power steering system comprises a sleeve member 12 having two pairs of ports 14, 14 and 15, 15 the ports of each pair being connected respectively to the opposite sides of the power-assist piston 10, aid a rotary member 13 within the sleeve having a central bore 19 connected to a pressure fluid inlet and a pair of peripheral slots 21 connected to the fluid reservoir. Grooves 16, 16 and 17, 17 are formed on the member 13 leaving lands 18, and the grooves 16, 16 are connected by a diametral bore 20. The land 18 may be of constant width and the grooves 16, 17 formed with grooves 23 at the mid point, or may be of width tapering to a minimum at its mid length, whereby, in a central position, fluid from the bore 19 flows around the grooves 16, 17 and through slots 21 to reservoir. Displaced from this position, fluid from bores 19 and 20 is directed to one or other of the slot pairs 14 or 15 and the other opened to reservoir.
Patent GB-1162009-A (GB)
Title: Gas-Bearing Assembly
IPC: F16C32/06
Filed: 1966-10-24
Abstract: 1,162,009. Bearings; vibration dampers. UNION CARBIDE CORP. 24 Oct., 1966 [23 Oct., 1965], No. 47559/66. Headings F2A and F2S. [Also in Division F1] In a gas bearing assembly, rotor means comprises a torque transferring mass portion and a dynamic stabilizing mass portion which are joined by elastic means, the dynamic stabilizing mass portion being separated from a rigid support member by a narrow annular space which is supplied with pressurized gas. In an embodiment, a torque-transferring mass portion 12, Fig. 1, has an energy-receiving section 25 and an energy-transmitting section 26 which operates in conjunction with field coils 24 and 27 respectively. Dynamic-stabilizing mass portions 13a and 13b are each connected to the portion 12 by an elastic member 14. The members 14 are each provided with a damping- sleeve 19a or 19b formed of a material which dissipates energy by intense friction within, as for example elastomers or metals including lead. Alternatively, the members 14 may have metal wire wrapped therearound and metal bonded thereto; or the damping material may be impregnated into the members 14. Pressurized fluid is supplied to the portion 13a through a passage 18a in a rigid support member 15 to produce a gas-film 16a in an annular space 17a and is supplied to the portion 13b through a passage 18b in the support member 15 to produce a gas-film 16b in an annular space 17b. Thus the rotor assembly is radially supported by fluid pressure. The rotor assembly is also axially supported by fluid pressure which is supplied from the passage 18a and is passed through passages 22 to spaces 21 formed between thrust-sections 20 and the support member 15. In another embodiment, a turbinedriven compressor unit has a torque-transferring mass portion 112, dynamic-stabilizing mass portions 113a, 113b and elastic support means 114a, 114b. The portion 112 has a recessed portion 140 which receives a portion 141 of a easing 115, the latter having tooth-type projections 139 which form a labyrinth seal with the rotating portion 140. The portions 113a and 113b are each provided with an annular chamber 145 containing metal particles 144 which can extract energy by non-elastic or partiallyelastic collisions. In use, pressurized-air is supplied through a passage 118a to bearing- spaces 117a, 121 and through a passage 118b to a bearing-space 117b.
Patent GB-1413033-A (GB)
Title: Resolution of norfenfluramine
Filed: 1973-10-16
Abstract: 1413033 Resolution of norfenfluramine BEECHAM GROUP Ltd 18 July 1974 [16 Oct 1973] 48074/73 Heading C2C A process for the resolution of a mixture of the (+ and (-)-isomers of norfenfluramine comprises: (a) reacting a mixture of the (+ )- and (-)-isomers of norfenfluramine with an optically pure dibenzoyltartaric acid in an organic solvent such as dry methanol, dry ethanol or mixtures thereof, at an ambient or preferably elevated temperature; (b) allowing or causing the resulting solution to cool to form a crystalline precipitate of the salt; (c) recrystallizing the separated salt from an organic solvent which consists of methanol or contains a major proportion of methanol; (d) treating the recrystallized salt under basic conditions to yield norfenfluramine in an optically active form. (-)-Dibenzoyltartaric acid is used to prepare (-)-norfenfluramine and (+ )-dibenzoyltartaric acid is used to prepare (+ )-norfenfluramine.
Patent GB-1380520-A (GB)
Title: Transmission and reproduction of trichromatic images
IPC: H04N1/48
Filed: 1973-10-18
Abstract: 1380520 Facsimile scanner COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 18 Oct 1973 [18 Oct 1972] 48629/73 Heading H4F In a colour facsimile scanner a document 17 is line scanned by a rotating disc 1 having four optical fibres, the light from source 11 being directed via three of the fibres (one of which 6b is shown) and a mirror 15 across the document and detected by photo-cell 18, red, green and blue colour filters, such as 7b, being arranged at the ends of the fibres. In addition the light transmitted by the fourth fibre 6<SP>1</SP> is detected 25, to provide a synchronizing pulse for each rotation of the disc which is transmitted via amplifier 19 with the video signal, resets a modulo 3 counter 22, and causes step motor 27 to advance the document. The counter 22 is advanced by pulses from photo-electric sensor 21 which produces three output pulses corresponding to the three fibres upon each revolution of the disc. The output of counter 22 controls a gain control unit 23 which applies appropriate signals to amplifier 19 for the three colours. The receiver is described with reference to Fig. 4 (not shown) and includes red, green and blue modulated light emitting diodes instead of source 11, these diodes being sequentially energized in response to the output from a modulo 3 counter synchronized by pulses from sensors 25 and 21. The output from sensor 25 and the received synchronizing pulses ensure synchronism of the time base of the disc's motor.
Patent GB-1055980-A (GB)
Title: A driving band for projectiles for firearms
IPC: F42B14/02
Filed: 1963-12-10
Abstract: 1,055,980. Driving bands. ELEKTROPHYSIKALISCHE ANSTALT BERNHARD BERGHAUS. Dec. 10, 1963 [Dec. 12, 1962], No. 48784/63. Heading F3A. Driving bands are formed of readily deformable material such as copper, brass, lead or soft or sintered iron, and coated with a thin layer of chromium, nickel or cobalt in order to reduce wear on the weapon barrel. In addition the driving band and the inner surface of the weapon barrel can be nitrided.
Patent GB-1441838-A (GB)
Title: Saw blade suspension devices
IPC: B23D51/08
Filed: 1973-10-23
Abstract: 1441838 Saw blade arrangement H ABEL 23 Oct 1973 49320/73 Heading B5L A mounting arrangement for a saw blade 9 fixed at or adjacent its ends to a saw frame 10, e.g. of a hand or power fretsaw or scroll-saw, comprises a clamping member 3 for securing to the blade 9 and rockably mounted on a forkshaped element 4 of the saw frame. The blade extends through the fork to its opposite end fixing which maintains the member 3 and element 4 in engagement. The rookable mounting comprises a fulcrum on the member or element resting in a V-section hollow seat in the element or member respectively. As described the member 3 has a rounded prism or wedge shaped portion resting in the V- section hollow of the fork element 4. Alternatively the saw frame has prism-like projections engaging in V-section hollows in the clamp member. In other arrangements conical pins on the member or element engage in conical dimples in the element or member respectively. The clamping member shown as 5, 6 or 7 in Fig. 2, may have a recess 5a through hole 6a, or slot 7a for receiving the saw blade which is held therein by one or two screwed bolts 8.
Patent GB-1371450-A (GB)
Title: Warehousing system using slowdown and stop bin indicators
Inventor: HATHCOCK JR J S
IPC: B65G1/04
Filed: 1972-10-26
Abstract: 1371450 Hoist control; mechanical warehousing system CONGO Inc 26 Oct 1972 [1 Nov 1971] 49392/72 Headings B8L and B8E In a ware-housing system in which a carriage (40), Fig. 1 (not shown), for carrying pallets moves vertically adjacent a set of bins 21, the carriage hoisting assembly being movable horizontally on rails (25, 26) the carriage carries a photo-cell sensor unit 55 and light source 54, vertical rail (50) supporting, for each bin level, a set 50, 60, 62 of indicator plates intercepting the light beam, the set, for each level carrying a binary code in the form of perforations 70 identifying the level plate 50 identifying the stop positions, plates 60, 62 being mounted at points where slowdown during ascent, or descent is to be initiated. Since the set 50, 60, 62 for each level bears the same binary code, such sets are interleaved as in Figure 2. Operation.-A desired destination is stored in address 224 in binary form, its feeding in by an operator or central data source causing the carriage to move at high speed towards the desired level. Further data indicates whether loading, or unloading of a pallet is intended, selecting, respectively either a low, or high stopping position by closing one or other of "deposit", or "retrieve" contacts in speed control 220. Passage of the unit 55 past each slowdown plate, for example 62-3, causes, via a respective tab 112 the enabling of strobe unit 212 in turn enabling, via contacts STROBE 1- STROBE n the comparison in unit 226 of the desired destination with that represented by the number on the plate. When equality prevails, contacts M1, and M2 close, and, SLOW-DOWN 1 being closed slowdown is initiated, and a creep speed initiated, until the corresponding stop plate, for example 50-3 intercepts the light beams, stopping the carriage by means of the unit 232 at the preselected high or low level, the contacts HIGH-2 or LOW-2 being closed by units 202, or 200, under control of photo-cells A and B interacting with end parts of the stop plate 50, contact M-2 being closed under control of comparator M.  Mechanical construction. Fig. 1 (not shown) carriage 40 is driven vertically by a pair of chains moved by hoist motor and brake apparatus (37). The system works in a corridor between two storage racks (20), a fork mechanism (42) operating either to left or right. A similar control system may be used for horizontal positioning of the carriage. The plates need not all carry the binary code, the identity of some being inferred from a previous address sequence.