baber/WOPTO huggingface dataset:
Patent GB-1347819-A (GB)
Title: Sintered alloy having abrasion-resistive and self-lubricating pro perties and apex seal formed of the same
IPC: F01C19/02
Filed: 1972-10-24
Abstract: 1347819 Rotary positive - displacement machines NISSAN MOTOR CO Ltd 24 Oct 1972 [6 Nov 1971] 48957/72 Heading F1F [Also in Division C7] An apex seal for the rotor of a rotary engine, which may be of the Wankel type, is formed of a sintered iron-based alloy containing titanium carbide and graphite particles dispersed in the alloy matrix which may also contain silicon, molybdenum and/or copper. The apex seal 20, Fig.2, may be mounted on a corner seal 22 of a rotor (14), Fig.1 (not shown), and is provided with grooves 24 to allow passage of combustion gasses. In an alternative embodiment Fig.4 (not shown), a layer of the alloy 0À5 to 1À0 mm thick is laid on a metal support to form the apex seal. The seals, apart from being abrasion-resistant, also have self-lubricating properties.
Patent GB-1206128-A (GB)
Title: Improvements in or relating to shaped coating layers
Inventor: TAKAKITA SHINJIRO
IPC: C22C1/08
Filed: 1967-10-27
Abstract: 1,206,128. Agricultural implements. S. TAKAKITA, K. TAKAKITA, S. TAKAKITA, M. TAKAKITA and A. TAKAKITA. 27 Oct., 1967 [29 Oct., 1966], No. 49025/67. Heading A1B. [Also in Division E1] A shaped working part of a machine e.g. a plough or bulldozer blade is covered with a correspondingly shaped element 1 comprising a wear resistant skeleton having a plurality of interstices, channels or pores communicating with the exterior of the skeleton; all or substantially all of the interstices, pores or channels being filled with a plastics material which extends to the surface of the covering element. The wear resistant skeleton may be formed from metal mesh of e.g. iron, steel, copper, aluminium, molybdenum or an alloy thereof or may comprise a ceramic, stone or graphite block with uniform or tapered bores therein.
Patent GB-1321843-A (GB)
Title: Bis-s-triazinylamino stilbene optical brighteners
IPC: D06L4/60
Filed: 1970-10-16
Abstract: 1321843 Bis-cyanoamido-s-triazinylaminostilbene sulphonic acids CIBA-GEIGY AG 16 Oct 1970 [17 Oct 1969] 49296/70 Heading C2C [Also in Divisions C3, C5 and D1] Novel bis-s-triazinylaminostilbene sulphonic acids of the formula in which R is hydrogen, C 1-4  alkyl or C 2-4  hydroxyalkyl or aminoalkyl, X is chlorine, C 1-4  alkoxy, phenoxy or the group -NR 1 R 2  where R 1  is hydrogen, C 1-4  alkyl, C 2-4  hydroxyalkyl, C 3-8  alkoxyalkyl, other than alkoxymethyl, or a phenyl group optionally substituted by chlorine, C 1-4  alkyl or sulpho, R 2  is hydrogen, C 1-4  alkyl or C 2-4  hydroxyalkyl or R 1  and R 2  together complete a non-aromatic heterooyclic ring, and the alkali metal and alkaline earth metal salts thereof, are prepared by condensing 2 mols. cyanuric chloride, in a first or second synthesis stage, with 1 mol. 4,4<SP>1</SP>-diaminostilbene-2,2<SP>1</SP>- disulphonic acid, or an alkali metal or alkaline earth metal salt thereof, and, in any desired sequence, with 2 mols of an alkali metal or alkaline earth metal salt of a cyanamide R<SP>1</SP>-NH-CN, where R<SP>1</SP> is hydrogen or C 1-4  alkyl, and, optionally, 2 mols. of a C 1-4  alcohol, phenol or an amine R 1 -NH-R 2  and, if desired, alkylating the N of the cyamide groups where R<SP>1</SP> is hydrogen with a C 1-4 -alkyl halide or sulphate, a C 2-4  hydroxyalkyl halide or a C 2-4  aminoalkyl halide. The condensation steps are effected preferably in the presence of an acid-acceptor with the reaction temperature increasing at each stage. The compounds may be isolated in salt form by salting out and if required converted to the free acids by known methods. Examples describe the preparation of a variety of compounds in the form of sodium salts. The bis-triazines are used as optical brighteners (see Divisions C3, C5 and D1).
Patent GB-1224820-A (GB)
Title: A mounting plate for an electrical equipment case
Inventor: STONE DENNIS
IPC: H02B1/04
Filed: 1968-10-17
Abstract: 1,224,820. Stud and socket fastenings. STANDARD TELEPHONE & CABLES Ltd. 17 Oct., 1968, No. 49297/68. Heading E2B. A fastening for securing an electrical equipment case to a support comprises a channelled plate 1 having lateral flanges 2 and 3 engageable in grooves in the case, a spring urged latch bar 6, which has a recess which engages a peg projecting from the case and two blocks 4 and 5 with tapering end portions which engage over U-shaped bars on the case to wedge the flanges into engagement with the grooves. The plate is secured against removal by padlocking a slotted bent end portion: of  an extension of the latch barto--a staple 12 extending from a flange 11 on the plate. The plate has holes 26 for securing the plate to the support.
Patent GB-1029470-A (GB)
Title: Fluid flow control valve
IPC: F15B21/047
Filed: 1964-12-08
Abstract: 1,029,470. Fluid pressure servomotorcontrol systems. NEW YORK AIR BRAKE CO. Dec. 8, 1964 [April 16, 1964], No.49864/64. Heading G3P. [Also in Divisions F1 and F2] A double acting piston motor 12, e.g.for raising and lowering the bucket and blade 13 of loaders and bulldozers, is controlled via a valving device 11 from a three position sliding plunger valve 14 whereby, with value 14 in the "raise" position, pressure fluid from pump 15 flows from port 17, conduit 26, port 22, passage 32, annular chamber 32a and radial passage 49, of valve plunger 36, to axial bore 47 thereof to unseat check valve 52 and pass via radial passages 51 and passage 33 encircling by-pass valve 61, to port 24 and passage 28 to the head end of motor 12 whilst, simultaneously, the rod end of motor 12 is vented to tank 16 by conduit 29, port 25, passage 31 encircling check valve 59, port 23, conduit 27 and port 18. The motor may be hydraulically locked in the "raised" position with valve 14 in neutral position, interrupting the supply and vent paths. The blade 13 is lowered by pressure fluid from pump 15 flowing, via port 18 and conduit 27, to the rod end of the motor 12 and which fluid pressure also acts in chamber 31a to displace plunger 36 against the action of spring 44 and the dashpot action of fluid in chamber 41 which is connected to passage 32 via restricted orifice 42 and to passage 33 via passage 75, chamber 69 and restricted orifice 74 in by-pass valve 61, whereby throttling notches 46 open communication between annular chambers 32a and 33a for the return flow from the piston end of motor 12a. Cavitation within the piston end of motor 12a is prevented by a balance between closing down of the throttle notches 46 as pressure in passage 31 decreases and opening of by-pass valve 61 and check valve 59 as pressure on annular surface 71 of valve 61 increases to open this valve against spring 68 and reduced pressure within chamber 69 arising from restriction 74. In digging operations, the blade 13 encounters resistance and with highest pressure in the passage 31 valve 36 assumes a position with maximum opening of throttles 46 and maximum pressure available on the piston. In an alternative embodiment,(Fig. 2 not shown) chamber 69 is not connected to chamber 41 but is connected directly to a separate "vent" section of valve 14 which is used to operate the valve 61 only when quick dropping of the blade is required; this has the advantage that the only path between ports 22 and 24 is closed in the event of failure of-valve 14 in the "raise" position. Chamber 41 effects a dashpot action upon valve 36 to minimise valve chatter.
Patent GB-1487449-A (GB)
Title: Method of reducing creasing in citrus fruit
IPC: C05B7/00
Filed: 1975-12-04
Abstract: 1487449 Reducing creasing of citrus fruit CHEMICALS & PHOSPHATES Ltd and AGRICULTURAL RESEARCH ORGANIZATION THE VOLCANI CENTER 4 Dec 1975 [20 Dec 1974] 49883/75 Heading C1B Creasing of citrus fruit is reduced by applying thereto ureaphosphate solution. The solution is preferably applied by foliar spray at 0À5 wt. per cent concentration, and may include additives, e.g. the NH 4 <SP>+</SP> salt of dichlorophenoxyacetic acid, gibberellin, growth regulators, potassium magnesium or ammonium nitrate or phosphate, or ammonia.
Patent GB-1169890-A (GB)
Title: Electromagnetic Induction Brakes
Inventor: REED JONATHAN
IPC: H02K49/02
Filed: 1965-11-24
Abstract: 1,169,890. Electric brakes. PYE Ltd. 24 Feb., 1967 [24 Nov., 1965], No. 49888/65. Heading H2A. An electromagnetic brake has an external cylindrical ferro-magnetic rotor 17 mounted on a shaft 11 which rotates within a stator 1 of ferromagnetic material provided with a plurality of radially extending polepieces 2, each supporting an energizing coil 3 and having a pole shoe 5 whose surface area is greater than that of the polepiece within the coil. The coils, of copper or aluminium, are tapered to allow the maximum number of turns to be used and are energized in pairs from a control circuit, Fig. 4 (not shown), in accordance with the braking action required. Alternatively, the current in the windings may be changed by means of a potentiometer or semi-conductor control element. The shaft can be provided with coupling members at both ends and can be made integral with hub 12 and rotor 17. In a modification, the pole shoes may be made integral with the polepieces and attached to the stator frame by known means. The brake is mounted by flange 6 and cooled by the action of radial fins 15 and skewed fins 19. The brake can be mounted in a casing having mounting feet and the shaft provided with a flexible coupling, Fig. 5 (not shown).
Patent GB-1440927-A (GB)
Title: Web cutting device
IPC: B65B65/00
Filed: 1972-10-31
Abstract: 1440927 Cutting apparatus A SCHMERMUND 16 Oct 1973 [31 Oct 1972] 50096/72 Heading B4B A device mountable on a packaging machine for wrapping block-like articles in wrappers of material cut from webs, wherein the device comprises means 35, 135 adapted to mount the device on the packaging machine, guide strips 9, 10 and 109, 110 defining first and second feed paths for webs 136 and 137 respectively, a cutter device 2, 3 and 102, 103 in each feed path, each cutter device including a rotatable knife 3, 103 for co-operation with a stationary knife 2, 102 and feed rollers 1 and 101 for each respective web, control means being provided for actuating one set of feed rollers while deactuating the other set. Considering the left-hand feed path, the cutter includes four cutting elements 3 mounted on a roller, the roller being held in the position shown in the cutting elements are clear of the web, by means of a spring-loaded lever 6, 8. A pinion 34 is secured to the cutter roller and meshes with a rack 12 which is actuated by a solenoid M1 against the action of a spring 13, the rack being retained in the loaded position by a spring-loaded pawl 19 engaging a pin 20 fixed to the rack ; the pawl is released by a solenoid M2. A free wheel arrangement (11), Fig. 2 (not shown), is associated with the rack- and-pinion drive. In operation, one web, e.g. 136 is drawn from a supply reel by the feed rollers 1 and further rollers 15 until a predeter mined length has passed the cutter device 2, 3. The solenoid M2 is then energized thereby releasing the pawl 19 so that the rack rises under the action of the spring 13 and rotates the cutter roller to effect a cut. The solenoid M1 is then actuated to return the rack to the loaded position shown in Fig. 1, the free wheel preventing return movement of the cutter roller. The cut piece of web is then transferred by a suction conveyer device 24, 25 to a packaging station. When the web 136 has nearly run out, the feed rollers which are actuated via electromagnetic clutches, are stopped and the feed rollers 101 for the web 137 started, the cutter device 102, 103 then operating as previously described. When applied to an existing packaging machine, the normal cutter device 16, 17 associated therewith may be used to cut either web, the cutters 2, 3 and 102, 103 only being used during a web change operation. The feed rollers may be actuated by a manually-controlled switch or by means which senses when one or the web is approaching its end.
Patent GB-1510373-A (GB)
Title: Method and apparatus for reproducing operating conditions in induced flow devices using subsonic air flow measurement
IPC: G01M15/04
Filed: 1975-04-28
Abstract: 1510373 Automatic control of testing carburetters SCANS ASSOCIATES Inc 28 April 1975 [25 June 1974] 50326/77 Divided out of 1510371 Heading G3N A carburetter testing arrangement includes a control system for the motor which positions the throttle valve so that a desired air-flow is obtained with a predetermined vacuum which is set with the throttle valve shunt. The arrangement shown employs subsonic flow and includes a hood 90 enclosing the carburetter 33 both of which are sealed to chamber 54 which is exhausted by vacuum 57. The vacuum is pre-set by measuring the differential pressure between chambers 90 and 54 by probes 102 when the throttle plate 60 is closed. During a test air enters chamber 97 through inlet 100 and passes through laminar flow tubes 65 into hood 99. The actual air-flow is signalled by differential pressure transmitter 71 and used to operate a stepping motor to open the throttle plate until a test point air-flow is achieved. The control is similar to that described in Parent Specification and elliptical gearing may be used in the throttle plate drive as claimed in Specification 1510372. The laminar flow tubes may be replaced by subsonic nozzles.
Patent GB-1390449-A (GB)
Title: Air supply means for hydrotherapy treatment
IPC: A61H33/02
Filed: 1972-11-01
Abstract: 1390449 Hydrotherapy apparatus BORGWARNER CORP 1 Nov 1972 [28 Dec 1971] 50382/72 Headings A5R and A5X [Also in Divisions A4 B1 and F2] Apparatus for supplying pressurised air to a hydrotherapy tank comprises a nozzle 26, Fig. 4, and a conduit 22, Fig. 1, formed of flexible plastics film, the nozzle having a tapered end section and an adjacent annular groove 36, the conduit 22 having an internal diameter greater than the maximum diameter of the nozzle 26, and an elastic O-ring 32 holding the conduit 22 in the groove 36, the O-ring 32 making an air-tight seal with the conduit 22 for pressures less than a predetermined pressure which is less than the pressure required to damage the conduit 22, and allowing the conduit 22 to blow off for pressures greater than the predetermined pressure. In a bath two apertured conduits 22, 23 are integrally formed on a flexible plastics film 10 for injecting air into the water in a hydrotherapy tank from an air manifold 25 with two nozzles 26, 27 which have a threaded portion 38. The conduits 22, 23 have closed ends and the plastics film 10 is transparent and envelopes and isolates a litter 12 having members 16, 17 pivoted thereon and connected to hoist chains 14, 15. Apertures are punched in the conduits 22, 23 where required prior to use.
Patent GB-1380066-A (GB)
Title: Circuits for producing controlled pulses
IPC: G11B15/46
Filed: 1971-11-02
Abstract: 1380066 Automatic voltage control INTERNATIONAL COMPUTERS Ltd 19 Oct 1972 [2 Nov 1971] 50786/71 Heading G3R [Also in Division H3] Pulses are produced from a full wave rectified A.C. voltage by comparing a ramp with the average value of portions of each half cycle, the length of the portions being controlled by the output pulses so as to maintain the average constant with changes in A.C. voltage. The circuit may be used to maintain the torque of a motor constant with changes in supply voltage. An A.C. input 10 is full wave rectified at 12, 13 and used to reset a ramp generator 17, 18, 20 so that a ramp is generated during each half cycle. The rectified A.C. is also fed via a gating transistor 26 to an averaging circuit 27, 28 the output of which is compared with the ramp to cause the comparator output to switch when equality is reached, thus to produce pulses at 22. The pulses act via a transistor 24 to open the gate 26 so that only the part of the cycle during the pulse is fed to the averager. The effect of this feedback is to maintain the average constant with changes in the amplitude of the A.C. voltage since, if the average value tends to increase, the output pulse tends to be narrower and this reduces the width of the gated cycle. Thus, if the output pulses are used to fire a thyristor or triac in a motor control circuit the torque remains constant with changes in supply voltage. Feedback via 32 and 33 around the comparator provides hysteresis. In Fig. 2 (not shown), a diode (37) is used to gate the path to the averager in the presence of an output pulse. In addition a monostable circuit (40c) provides feedback around the comparator to increase noise immunity.
Patent GB-1186243-A (GB)
Title: Interference Microscope.
Inventor: SMITH FRANCIS HUGHES
IPC: G02B21/14
Filed: 1967-11-08
Abstract: 1,186,243. Interferometer microscope. VICKERS Ltd. Oct.21, 1968 [Nov. 8, 1967], No.50792/67. Heading G2J. An interferometer microscope comprises means for producing an illuminating beam of light 11, a polarizer 12, a substage condenser 13 to converge the polarized beam to a focus, a first double-refracting transparent plate 14 to divide the converging beam into the single-barbed ordinary ray and the double barbed extra-ordinary ray, two or more half-wave birefringent retardation plates 15, 16 to rotate the vibrations associated with the rays through 90 degrees, a stage 22 to support the specimen, a second double-refracting transparent plate 17 to recombine the two beams, an objective lens 18 to form an image of the specimen and an analyzer 19 to bring the combined beams into parallel plane polarized relationship to be viewed in the image plane of an eye-piece 20, 21. The half-wave plates 15, 16 are made of crystalline quartz.
Patent GB-1487309-A (GB)
Title: Doors
IPC: E06B3/70
Filed: 1973-11-01
Abstract: 1487309 Moulding doors NEWBOURNE WATSON Ltd 3 Feb 1975 [1 Nov 1973] 50882/73 Heading B5A [Also in Division E1] A door is moulded by using a mould of glass reinforced polyester resin lined with aluminium alloy. Wooden strips are positioned along opposite edges of the mould with facing dovetail projections and foamable polymerizable resin, e.g. polyurethane, is injected to envelop the projections.
Patent GB-1473422-A (GB)
Title: Edible food casings in spiral or wreath-shaped form
IPC: B29C53/12
Filed: 1974-03-25
Abstract: 1473422 Edible food casings NATURINWERK BECKER & CO 25 March 1974 [24 March 1973] 51464/76 Divided out of 1473421 Heading B5B [Also in Division A2] An edible food casing, such as a sausage skin, in spiral or wreath shape has a wall thickness of 8 to 40 Ám. Casings of collagen, alginate or casein are produced by wet or dry spinning. They may be extruded with uniform wall thickness or, by using a nozzle with an eccentric core, with one side thicker than the other to compensate for the effects of curving the casing. The extruded casing is inflated and fed to a series of rotating frusto-conical carriers 6. Rollers 7 and 8 guide the tube from one carrier 6 to the next. Heated air is blown through apertures 11 and exhausted through apertures 13 to dry the casing. The casing may be plasticized by spraying with glycerol solution before winding up or shirring. The casing may be hardened with solution of tanning agents such as adlhydes or metal salts, excess being removed by washing.
Patent GB-1416439-A (GB)
Title: Electron discharge device
IPC: H01S3/09
Filed: 1972-11-08
Abstract: 1416439 Electron beam irradiation apparatus AVCO CORP 8 Nov 1972 [23 Dec 1971] 51570/72 Heading H1D A device for pulse or continuous external electron beam irradiation comprises evacuated main housing 11 surrounding inner enclosure 13 with electron emission means such as filament or filaments 18 and conductive grid 35, the inner enclosure being electrically connected to externally located auxiliary housing 24 by tubular connecting member 19 insulated from and sealed to housing 11 by insulator 22, auxiliary housing 24 containing energizing means 31, 32, connected to filament(s) 18 by wires 33, 35, main housing 11 being maintained at a positive potential relative to inner enclosure 13 and to grid 35 (also, Fig. 3, not shown), and having electron beam permeable window 37 (also, Figs. 2 and 4, not shown). The construction shields filament(s) 18 and the power supply from external fields. Parallelism of filament 18, grid 35 and window 37 is preferred. Housing 11 and enclosure 13 are preferably metallic, insulator 22 of P.T.F.E., and filaments 18 of spring loaded W, or thoriated W. Temperature and space change limited operations and secondary emission from grid screen 35 are discussed. Evacuation via pipe 11a prevents breakdown between enclosure 13 and housing 11. Foil or sheet 37 may be Al, Be, Ti, an alloy or plastics material, removably secured by ring 42 by described means, and usually electrically connected with housing 11. Circuitry is as in Fig. 5 (not shown) with optical control via pipes (51), (52). Potentials are discussed. Fig. 6 (not shown), includes a.h.v. bushing comprising non-conductive sleeve (80), glass rings (81), and metal washers (82) connected across voltage divider resistors (89), and is removably attached to housing (71) and has metal ring (83) to shape the field. Spacer member (87) is about foil (84), (also, Fig. 8, not shown), and grid (91), which may be identical to grid (92), (Fig. 7, not shown), this structure preventing arc damage to foil (84). Uses of the device include radiation chemistry, sterilization, preservation, curing paints and varnishes, and ionization of gases as for MHD and laser devices.
Patent GB-1089539-A (GB)
Title: Improvements in manufacture of electric incandescent lamps
IPC: H01K3/00
Filed: 1964-12-21
Abstract: 1,089,539. Making double ended electric lamps. GENERAL ELECTRIC CO. Dec. 21, 1964 [Jan. 2, 1964], No. 51817/64. Headings H1F and H1J. In making an electric lamp, means for holding one end of a lead-in wire, which may be drawn from a reel, is inserted into an envelope having openings at opposite ends, the wire is cut and shaped and a filament mounted between the cut ends, the envelope and holding means are moved so that the filament is located within the envelope and the ends of the latter are sealed with the lead-in wires passing through the seals. One end is first sealed while the interior of the envelope is flushed with inert gas through the other end, which is then sealed. During the second sealing, further flushing is carried out using inert gas of the composition desired for the final filling. The sealing is effected by heating the glass of the ends of the envelope and compressing it between jaws shaped to produce a flattened press having V-shaped grooves on one or both sides into which the ends of the lead-in wires are finally flattened to form contact terminals for the lamp. Instead of using lead-in wire cut from a reel, a pair of wires cut to equal length are supported side-by-side, one in a holder extending through the envelope, and the filament is mounted between them. The holder outside the envelope is then swung upwards through 180 degrees and the envelope moved up to enclose the filament. The holder may be constructed with one or more openings through which the flushing gas can be directed into the envelope.