baber/WOPTO huggingface dataset:
Patent GB-1381137-A (GB)
Title: Valves suitable for internal combustion engine crankscase ventilation
IPC: F01M13/00
Filed: 1972-10-05
Abstract: 1381137 Ventilating I C engine crank-cases GENERAL MOTORS CORP 5 Oct 1972 [21 Oct 1971] 45896/72 Heading F1B [Also in Division F2]  Movement of a valve plunger 70 within an orifice 60 in a housing 48, 54 in response to a pressure differential across the plunger, is limited in one direction by a stop 62 and when the plunger is abutting the stop a recess 80 on the plunger extends into but not through the orifice. The recess 80 accommodates deposits scraped off the plunger 70 at the orifice 60. The housing 48, 54 is mounted in a rubber grommet 68 in the rocker cover 42 of an engine (10), Fig. 1 (not  shown) and is connected by a conduit 46 to the engine intake manifold (32).
Patent GB-1097778-A (GB)
Title: Improvements in or relating to heater and heating process
IPC: F28C3/16
Filed: 1964-11-12
Abstract: 1,097,778. Preheating furnace charges. P.I.C. S.A. Nov. 12, 1964 [Nov. 15, 1993] No. 46175/64. Headings F4B. In apparatus for drying and heating a layer of material, e.g. cement raw material, on a movable grate 1 which divides a heater into lower and upper chambers 21, 22, a current of hot gas from a rotary kiln 4 passes through the layer of material and grate into the lower chamber where it is divided into two paths, the colder gas passing through an opening 15 to atmosphere and the hotter gas is sucked by a fan 7 through a pipe 6 and cyclone separator 23 for recirculation to the upper chamber through pipes 8 and 9. Dampers 11, 12 in the pipes 8 and 9, and possibly also baffles 13, 14 in the upper chamber may be controlled by rod pyrometers 17, 18 to regulate the quantity of gas which is recirculated.
Patent GB-1185029-A (GB)
Title: Improvements in and relating to Polysulphones having Terminal Functional Groups
Inventor: WRAGG REGINALD TREVOR
IPC: C08G75/20
Filed: 1966-10-15
Abstract: 1,185,029. Polyalkylene sulphones; polyurethanes. DUNLOP CO. Ltd. 11 Oct., 1967 [15 Oct., 1966], No. 46198/66. Heading C3R. Polyalkylene sulphones having terminal hydroxy groups are prepared from polyalkylene thioethers containing such groups by protecting the hydroxy groups against oxidation with protective groups, oxidizing the sulphur atoms to sulphone groups and removing the protective groups. The hydroxy groups are preferably protected by esterification, e.g. with a mixture of acetic acid and anhydride, and the acetyl groups can be removed by reaction with ethanol in the presence of a strong organic acid. The oxidation may be effected with hydrogen peroxide or nitric acid. Polypropylene sulphones so obtained are powders, heat-stable up to about 200‹ C., readily soluble in hot nitrobenzene and dimethyl formamide but only slightly soluble in common solvents. The polysulphones react with polyisocyanates in the presence of a catalyst, e.g. organo tin compound, to form polyurethanes. The hydroxy-terminated polythioethers are obtained from functionally-terminated polythioethers prepared as described in Specification 1,109,164, by reaction with ethylene oxide or propylene oxide. In the example, the polymer is a liquid polypropylene sulphide (Mol. wt. 540) with a hydroxy group at one end and HOCH 2 CH 2 NH- at the other.
Patent GB-981124-A (GB)
Title: Lined carton and method of making same
IPC: B31B7/00
Filed: 1962-12-10
Abstract: 981,124. Making lined boxes. FIBREBOARD PAPER PRODUCTS CORPORATION. Dec. 10, 1962 [Dec. 11, 1961], No. 46454/62. Heading B5D. [Also in Division B8] A method of forming a lined flat tubular carton comprises depositing a strip of glue 12 on one edge of the paper side of the polyethylene and paper liner by a wheel 11, folding said edge over itself by a folder 13, applying a bead of heat-softenable material 15 to the polyethylene side of the opposite edge of the line through a nozzle 14, cutting the liner into separate sheets by cutting rollers 16, 17 and securing said liner to the carton blank by applying strips of adhesive from the roller 23 on to the carton blank particularly along its fold lines. The polyethylene on the folded edge 32 of the liner is heated and a further glue strip is applied to a strip 36 on the carton which come into contact with the bead 15 and the flange 42 respectively when the carton is folded into a tube. A coolant is applied to the inside of the liner 25 directly beneath the area where, on folding, the heat is applied to prevent melting of the polyethylene and wax coating of the paper.
Patent GB-1007160-A (GB)
Title: Process for the preparation of polymers and copolymers of vinyl chloride
IPC: C08F2/18
Filed: 1961-12-28
Abstract: Vinyl chloride is polymerized in aqueous dispersion in the presence of a first component comprising a copolymer of vinyl acetate and allyl alcohol and a second component comprising a condensate of a polyalkylene glycol and an alkyl phenol.  A third component comprising a copolymer of vinyl acetate and maleic acid or anhydride may be added.  The proportion of vinyl acetate to allyl alcohol in the first component varies from 97 to 3 to 70 to 30 parts by weight. The second component is preferably the nonyl phenyl ether of polyethylene glycol having a molecular weight of 740.  The catalyst is preferably a monomersoluble catalyst such as lauroyl peroxide. The first component is preferably present in the range 0.05 to 2% and the second 0.005 to 1% both by weight of the monomer.  The method is applicable to the preparation of copolymers of vinyl chloride and vinyl acetate or acrylonitrile, vinylidene chloride, or acrylic acid. Specification 892,106 is referred to.
Patent GB-1402162-A (GB)
Title: Key input circuit system for electronic apparatus
IPC: H03M11/20
Filed: 1972-10-09
Abstract: 1402162 Keyboards HITACHI Ltd 9 Oct 1972 [8 Oct 1971 (2) 13 Oct 1971 29 Dec 1971] 46513/72 Heading G4H A key input circuit has a plurality of key switches K1-K9 scanned in turn to produce, from the operated key, a time-significant pulse to a common terminal, at which an earth potential pulse appears when two or more key switches are simultaneously operated, a key input signal being gated to an encoder under control of the scanner. A ring counter 5 which does the scanning, also gates the pulse at ANDs 10-18 to a respective input of the encoder 8, the output of which is gated out at 10 by a start pulse generator 9 responsive to the common-terminal output from the keys. No output is produced when two or more keys are in the operated state together since when a closed switch is scanned the negative pulse therefrom is overridden by earth from any closed switch not being scanned at that instant. When the apparatus is used for input to a desk calculator, the ring counter 5 can also be used for selecting display tubes of the calculator, various arrangements (Figs. 5-8, not shown), using diodes and transistors for decoupling the two uses being disclosed. In a modification (Fig. 10, not shown) two groups of keys are scanned concurrently, there being two "common" terminals, one per group, these terminals feeding respective groups of the ANDs preceding the encoder, the start pulse generator partially enabling these ANDs rather than ANDs after the encoder.
Patent GB-1121332-A (GB)
Title: A vehicle including a reinforced coiled spring structure mounted between the vehicle frame and bumper bar
IPC: B60R19/28
Filed: 1965-11-03
Abstract: 1,121,332. Vehicle bumper mountings. S. W. LUDWIKOWSKI. 3 Nov., 1965 [9 Nov., 1964], No. 46561/65. Heading B7J. An automobile comprises a bumper 19, 20 which is mounted on the frame member 13 by conical coil springs 16 (of plain or alloy steel) welded to the member 13 and welded to the bumper 19, 20, and resilient compressible cores 24 of synthetic or natural sponge rubber engaging the springs 16. Sponge rubber blocks 26 are located in recesses 27 in the cross member 13 and the bar 19. In another embodiment, a plate 30 of rigid moulded synthetic plastics is attached to the frame member 13 and has an integral centre plug which is screw-threaded to engage a screw-threaded recess in a sponge rubber core. The core is moulded with a screw-thread engaging the coils of the spring 16. A part-spherical depression is provided in the end of the core which abuts a bumper bearing plate.
Patent GB-1491887-A (GB)
Title: Air cushion supported vehicles
IPC: B60V3/08
Filed: 1974-10-30
Abstract: 1491887 Laminates TEXTRON Inc 30 Oct 1974 [3 Dec 1973] 46939/74 Heading B5N [Also in Division B7] A looped inflatable skirt particularly provided to contain a supporting cushion on an aircraft is formed from a laminate comprising inner and outer layers of rubber between which are sandwiched crossed groups of tapes, e.g. 40-50 and 52-57, the tapes of group 40-50 being relatively more elastic than those of group 52-57. The tapes are laid on a bottom layer of rubber placed on a table formed with mandrels. The mandrels are positioned so that the tapes 40-50 are distorted to pass round the mandrels, whereas the majority of tapes 52-57 lie undistorted in parallel relationship. Each tape is formed from a plurality of contiguous cords (more elastic for tapes 40-50 than for tapes 52-57) sandwiched between strips of rubber, the whole being bonded. A further layer of rubber is placed above the crossed tapes and the whole is bonded into a laminate. When removed from the table the laminate has elongated apertures 34, and when applied to the aircraft as a looped skirt and inflated the elasticity of tapes 40-50 permits the laminate to stretch in the direction which would distort the apertures into a substantially circular profile for the outflow of air from the skirt to supply the enclosed air cushion.
Patent GB-1414360-A (GB)
Title: Vehicle for the propulsion of an implement for example a garde ning implement
IPC: A01G1/12
Filed: 1973-10-09
Abstract: 1414360 Articulated vehicles T E MEDALEN 9 Oct 1973 47166/73 Heading B7H A vehicle, particularly for driving agricultural or like implements, includes pivotally interconnected sections 1, 2, an engine 6 on one section 1 drivingly connected via a vertical shaft 3 coinciding with the pivot axis to a wheel 5 on the other section, and a continuously variable gear between the shaft 3 and wheel 5. Shaft 3 is rotatably mounted within a tube 14 defining the pivot axis and carries at each end a pulley 13 and a friction disc 32. Pulley 13 is driven via belt 10 trained about a pulley 8 on the engine output shaft 7, and disc 32 is biased upwardly by a spring 33 into contact with a vertical disc 20 rotatably fixed to a shaft 19. Disc 20 is axially movable along shaft 19 by means of a lever 21 to vary the speed and direction of rotation of the shaft 19 which is connected via output gears 27, 28 and a drive belt to the wheel 5. Disc 32 may be moved against the action of spring 33 by lever 25 to disconnect the drive. The vehicle is steered through meshing gear-wheels 18, 19<SP>1</SP> fitted on respective sections. The auxiliary implement is mounted on section 1 and is driven via a belt 11 trained about a pulley on the engine output shaft.
Patent GB-1493919-A (GB)
Title: Dynamo-electric machines having rotating rectifier system
IPC: G01R31/34
Filed: 1974-11-28
Abstract: 1493919 Dynamoelectric machines with rotary rectifier systems; electric protective systems REYROLLE PARSONS Ltd 28 Nov 1974 [10 Oct 1973] 47221/73 Headings H2A and H2K A dynamoelectric machine has a rotor with rectifiers R1-R6 and series-connected fuses F1-F6 arranged in branches of a rotating rectification system, and a rectifier fault detection system is provided by connecting solid state light emitting devices on the rotor in parallel with rectifiers in branches which are to be monitored. In the turbo-alternator arrangement shown wherein a field winding 1 is energized from an exciter winding 2, light emitting diodes LED and resistors A are connected across the rectifiers R1-R6, as in Fig. 2, and normally emit light in each non-conducting half cycle for the associated rectifier, but if that rectifier fails and the fuse blows the diode will no longer emit light. Optical, e.g. infra-red, detectors (not illustrated) situated on the stator then initiate an alarm system signal.
Patent GB-1109066-A (GB)
Title: Steam condensing apparatus
IPC: F28B3/04
Filed: 1965-11-08
Abstract: 1,109,066. Steam condensers. KOMPLEX NAGYBERENDEZESEK EXPORT-IMPORT VALLALATA. 8 Nov., 1965 [6 Nov., 1964], No. 47310/65. Heading B1B [Also in Division F4] Steam flows down chamber 2 into channels 6. 7, 8, 9 where the steam is condensed by direct contact with jets 5 of cooling water from nozzles 4 in water-conduits 3. Gases are withdrawn from the individual channels through passages in the lower portions of conduits 3, these passages being connected to an air pump (not shown). The gases rising through the passages are cooled with water cascading over trays. Part of the mixture of condensate and cooling water which collects at the bottom of the condenser is withdrawn through outlet 18, but a level 15 of water is maintained so that the lower ends of channels 6, 7, 8, 9 are sealed. A surface condenser is also described (see Division F4).
Patent GB-980468-A (GB)
Title: Improvements in and relating to electrical circuit elements
IPC: H05K1/09
Filed: 1962-12-17
Abstract: <PICT:0980468/C6-C7/1> <PICT:0980468/C6-C7/2> Printed circuits and similar electrical circuit elements having spaced conductors, are made by coating an insulating support with a thin layer of metal deposited chemically and then depositing thereon layers of different metals electrolytically.  The spacing between the conductors may be formed either by grinding or etching away selected areas of the first thin layer and if necessary one or more electro-coats, or by using an insulating support having a "ribbed" or a raised pattern surface and removing metal formed on the ridges or protecting them from coating. Coatings may be formed on both sides of the support which may have holes, and metal eyelets therein as necessary.  For example, an insulator sheet, after applying a mask of the desired printed circuit, is chemically plated with Ag, and electrodeposits of Cu or Ni are then formed. Relatively thick conductors closely spaced, Fig. 2, are made by forming a copper electro-coat 4 on the thin silver coating 1, and then removing a strip of both metal layers, e.g. by grinding, to form an interspace, the walls 6 of which slope away from the space.  Heavy electro-coats of copper are then applied but the normal bulges X1, Y1 are reduced and the conductors remain seaprated. In another feature eddy currents in a strip-type conductor are reduced by superposing alternate layers of copper and nickel, the latter being a relatively poor conductor, forming a laminated conductor. In a further development, the laminations may be formed perpendicular to the insulating backing and also in the plane of the backing, Fig. 4, in which ribs of insulator 1a are coated there-between with nickel 3, copper 4, thin nickel 3a, copper 4a, nickel 3b and copper 4b.  Metal is then removed from the crests of the ribs to expose the insulator, thus separating the conductors. The nickel layer being a poor heat conductor protects the insulator.  It is stated that these conductors, having reduced eddy current properties may be used in rotors.
Patent GB-1249475-A (GB)
Title: A winding machine including programming apparatus
IPC: D01H1/30
Filed: 1968-10-07
Abstract: 1,249,475. Building motions. POWERS REGULATOR CO. 7 Oct., 1968 [25 Oct., 1967], No. 47519/68. Heading D1D. [Also in Divisions F2, G2 and G3] In a spinning machine in which the bobbin speed is varied according to the position of the ring rail 23, the latter reciprocates vertically in short strokes and also gradually advances upwardly. The upward movements are transmitted by screw 29 in an extension 28 of the rail to a tube 26 via a lost-motion connection with bracket 27 and during the advance a bell-crank 53 carried by the tube 26 follows a replaceable template 31 and functions to vary the load applied to a relief valve member 64 through an adjustably tensioned spring 59 and beam 43. The valve member controls the escape of fluid from a radially adjustable chamber 71 supplied through a restriction (105) and thereby sets up a pressure in the chamber dependent upon the position of the rail. This pressure is applied to a servomotor (144) to vary the bobbin speed. Downward movement of the tube 26 is prevented by a dumb-bell roller 121 carried by a plunger 115 biased towards the tube by pressure downstream of a restriction (88) acting on diaphragm 110. Upon retraction of the rail, screw 29 pulls bracket 27 down to unseat valve member 134 to vent the pressure chamber 101 through the tube 26 to allow spring 124 to retract diaphragm 110. An indicator (126) displays the selected bobbin speed. In the modification of Figs. 13-14, not shown, the one way clutch constituted by roller 121 is replaced or complemented by a spring-biased pad (151) supported on spring arm (153) near the upper end of tube 26. The speed varying motor (144) can be controlled through a controller which continuously compares the pressure signal from chamber 71 which a signal indicative of the actual measured speed of the bobbins.
Patent GB-1446523-A (GB)
Title: Measuring apparatus for machine tool systems
IPC: B24B5/04
Filed: 1974-11-05
Abstract: 1446523 Machine tool details; grinding INDUCTOSYN CORP 5 Nov 1974 [19 Nov 1973] 47704/74 Headings B3B and B3D [Also in Division G1] The diametral dimensions of a rotating workpiece 10 (Fig. 1, 2) being cut by a grinding wheel 20 are measured by feeler gauge members 25, 26, 27 on that part 12 of the circumference which is continuous, and by a linear transducer 64 on the wheel slide 58 for that part 14 of the circumference which has a keyway 16. The gauge members 25, 26, 27 are associated with a first inductive transducer (not shown) whose analogue output is converted at 28 to a digital quantity, using clock pulses from a pulse generator 40, for display at 98. The wheel slide 58 carries a second inductive transducer 64 whose signals are converted at 68 to a digital quantity for display at 100. The part 12 of the workpiece 10 is initially ground to a desired diameter by moving the wheel slide 58 using a handcrank 96 and lead screw 94. The counter 100 is then set to zero by operation of a manual switch 90, the feeler gauge members 25, 26, 27 are withdrawn, the grinding wheel 20 is moved to the part 14 of the workpiece and further grinding is effected, the diameter of part 14 being shown at 100. In another embodiment (Fig. 3, not shown) the process is automated.
Patent GB-1194429-A (GB)
Title: Method of Manufacturing Polyurethanes having excellent Storage Stability in Dissolved State
IPC: C08G18/65
Filed: 1967-10-20
Abstract: 1,194,429. Polyurethanes. KURASHIKI RAYON K.K. 20 Oct., 1967 [21 Oct., 1966], No. 47798/67. Headings C3C and C3R. Polyurethanes are prepared by reacting (i) a diol of M.W. 400 to 8000 and terminated with OH groups, (ii) a diol of M.W. less than 400 and terminated with OH groups and (iii) an organic diisocyanate in a molar ratio of NCO to OH groups of 1: 1 to 1.3: 1 and heating said polyurethane at a temperature of 80 C. to 155 C. in the presence of an amide solvent or sulphoxide solvent in an amount of 2 to 60% by weight of the total charge, such that the polyurethane maintains a powdery form. Polyethers, polyesters and polyester ethers are the preferred diols of M.W. 400 to 8000. The diols of M.W. less than 400 may be the conventional glycols or diols containing tertiary nitrogen atoms. Suitable solvents are dialkyl formamides, especially dimethyl and diethyl formamide, dialkyl acetamides, especially dimethyl and diethyl acetamide, N-alkylpyrrolidones, N - alkylpiperidones, N - alkylpiperidiones, N - alkyldioxypiperidines, N-alkylcaprolactams and dialkyl sulphoxides, especially dimethyl and diethyl sulphoxides. The polyurethane is suitably heated with the solvent in a mixer or kneader, and may be wet coagulated to form films.
Patent GB-1103381-A (GB)
Title: Improvements relating to suspension devices
IPC: F16L3/24
Filed: 1963-12-04
Abstract: 1,103,381. Pipe supports. BECORIT (RESEARCH) Ltd. 1 Dec., 1964 [4 Dec., 1963], No. 47820/63. Heading F2P. [Also in Divisions A4, B7 and F2] A suspension device, e.g. for pipes or rails, comprises a bracket for releasable attachment to a flanged supporting member 9 and an elongated suspension element 22 the bracket comprising a hook bolt 12, a claw 15 disposed in opposed relation to the hook of the hook bolt, a hanger member rotatably received on the shank of the hook bolt and a clamping means to grip the suspension element at any point along the length thereof, whereby the effective length of the suspension element between the hanger member and the member to be suspended is steplessly variable. In the construction shown in Fig. 2 the hanger member comprises a plate 10 and a tubular portion 11 formed either by bending the plate or by welding a tubular section to the plate, the tubular portion being received on the shank of the hook bolt. The claw 15 is secured to an L-shaped angle-piece 16 and the tubular portion of the hanger member is received between the claw and one limb 16b of the angle-piece, the limb 16b and the claw being apertured so that the hook bolt can pass through; the olaw and the hook bolt are urged into engagement with the supporting member 9 by a nut 17. The suspension element shown is a cable and the clamping means is a threaded post 20 which is fixed to the plate 10 and which has a transverse hole adjacent the plate to receive the cable which is clamped in position by a nut and washer on the post. In a modification the post extends through the plate 10 and transverse holes are provided on each side of the plate together with two nuts and washers. In a further modification two threaded posts are provided on the plate and the cable is secured between them by a clamping plate carried by the two posts. The cable can be looped around a pipe as shown, but, if desired, attachment members, e.g. for engaging a rail, can be carried by the cable. A chain can be substituted for a cable, if desired.
Patent GB-1243066-A (GB)
Title: Method and suction dredging installation for obtaining dredging spoil
Inventor: KONING JAN DE
IPC: E02F3/92
Filed: 1968-10-09
Abstract: 1,243,066. Suction dredgers. INGENIEURSBUREAU VOOR SYSTEMEN EN OCTROOIEN SPANSTAAL N.V. 9 Oct., 1968 [16 Oct., 1967], No. 47921/68. Heading E1F. A suction dredger installation is such that, when discharge from the installation is stopped, the suction pipe is, during the stoppage, left in the spoil being sucked up as its construction facilitates the recreation of a suspension of spoil at the intake of the pipe when the installation is restarted. This functioning of the installation is due to the pipe having an intake portion that can be moved axially of and, if necessary, can be withdrawn into the lower portion of the rest of the pipe. This movement of the intake portion causes in the spoil the creation of a cavity in which a suspension of spoil can be created. Preferably during interruption of the suction process, water under pressure is supplied to the lower end of the suction pipe as the suction of the suction pump of the installation is gradually eliminated at the lower end of the pipe. This supply of water prevents spoil entering and choking the lower end of the pipe.