baber/WOPTO huggingface dataset:
Patent GB-955940-A (GB)
Title: Improvements in centrifugal selecting apparatus
IPC: B04C1/00
Filed: 1962-11-29
Abstract: 955,940. Centrifugal classifiers. A. MARK. Nov. 29, 1962 [Nov. 29, 1961], No. 45136/62. Heading B2P. A classifier for particles in suspension in a gas comprises a substantially vertical cylindrical or, as shown, a volute-shaped separating chamber 1a having a tangential inlet 2 and an upper axial outlet towards which the horizontally incoming gas is deflected by means of upwardly convergent, curved annular partitions 8 coaxially disposed above each other and spaced from the chamber wall. The chamber 1a forms the upper part of the classifier casing to which is connected a lower conical collecting chamber 3 for large or heavy particles and which may be provided with a rotating air lock outlet device 4. The upper axial outlet is formed by the casing cover 5 which has the shape of a convergent nozzle and opens into a volute-shaped chamber for recovering kinetic energy in the whirling ascending gas column and having a tangential outlet 7, Fig. 3, directed in reverse direction with respect to the inlet 2. The partitions 8, which prevent the formation of eddies detrimental to the centrifugal action, are mounted on vertical rods 9 secured to the flat portion of the cover 5. The inner opening of the lowermost partition is closed by a hollow conical core 12 closed at its base by an inverted conical member 13 and defining with the inner edges of the other partitions and the cover 5 an annular passage of upwardly increasing crosssection for the gas issuing from between the partitions, thus ensuring uniform flow of the gas therethrough. A transparent window 16 is provided in the upper wall of the chamber 16 which may act as a safety device when treating explosive mixtures. The classifier may be connected to a cyclone separator, a filter or an electrostatic separator for removing the light or small particles carried by the gas through the outlet 7. In a modification, where it is desired to collect in the chamber 3 a proportion of the finer particles, the height of the partitions in the chamber 1a is reduced in order that a given portion of the incoming gas flow passes below the partitions and escapes axially through the core 12-13 which in this case comprises an open-ended vertical passage for the escape of the gas upwardly.
Patent GB-1382363-A (GB)
Title: Reinforced thermoplastic compositions
IPC: C08L27/00
Filed: 1972-10-02
Abstract: 1382363 Reinforced thermoplastic compositions GENERAL ELECTRIC CO 2 Oct 1972 [1 Oct 1971] 45261/72 Headings C3P and C3R A reinforced thermoplastic composition that is rigid at temperatures of up to 90‹ F. comprises a homogeneous crystalline mixture of (a) a high molecular weight normally crystalline polyester which rapidly crystallizes from the melt, (b) a high molecular weight normally crystalline linear propylene homopolymer or copolymer and (c) a reinforcing filler, wherein 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b) is present. The composition may also include a flame-retardant and polytetrafluoroethylene or formed colloidal silica. The examples describe compositions containing (a) poly-1,4-butylene terephthalate and its copolyester containing isophthalate, poly-1,3- propylene terephthalate and polyhexamethylene terephthalate, (b) polypropylene, optionally in admixture with an ethylene/butene-1 copolymer and an ethylene-propylene block copolymer, (c) glass fibres, aluminium and bronze powders, asbestos, titanate and ceramic fibres, quartz and carbon black, and as flame-retardant: chlorinated diphenyl, hexabromobenzene, triphenyl phosphate and antimony trioxide with polytetrafluoroethylene or formed colloidal silica to render the flame-retardant compositions non-dripping while burning.
Patent GB-1149143-A (GB)
Title: Differential transmissions
Inventor: MUELLER OTTO
IPC: F16H48/26
Filed: 1967-06-05
Abstract: 1,149,143. Differential gearing. O. MUELLER. 5 June, 1967 [28 July, 1966; 13 Feb., 1967], No. 45368/68. Divided out of 1,149,142. Heading F2D. The subject-matter of this Specification is the same as that of Specification 1,149,142, but the claims relate to a limited slip differential having pump means actuated when differential action occurs, the pump means having at least three sets of pistons, the pistons in each set reciprocating out-of-phase with the pistons of the other sets.
Patent GB-1165374-A (GB)
Title: Improvements in or relating to Coupling Devices
IPC: G01N3/42
Filed: 1966-10-11
Abstract: 1,165,374. Hardness testing device. KARL MAIER [trading as MAIER & CO., FABRIK FUR SPEZIALMASCHINEN]. Oct. 11, 1966 [Oct. 12, 1965], No.45380/66. Heading G1S. A coupling device suitable for inter-connecting the moving members in a hardness testing device, comprises a spring-loaded gripper element 10 and a gripped element (ball or disc) 5 which is flexibly connected e. g. by wire 6, to one of the members. Operation of handle 3 drives indenter 8 into the surface of the specimen and the vertical movement is transmitted via the coupling, to the pointer dial 49. Control of the spring-loaded element for clamping the gripped element may be effected by an expansible ring or solenoid controlled clamp.
Patent GB-1002989-A (GB)
IPC: F02P3/04
Filed: 1961-12-19
Abstract: 1,002,989. Ignition systems. ROBERT BOSCH G.m.b.H. Dec. 19, 1961 [Dec. 22, 1960], No. 45438/61. Heading F1B. An ignition system for an internal-combustion engine comprises a high tension ignition coil whose primary winding 20 is supplied from a current source through at least two transistors 12, 13 in series connection by their emittercollector paths each of which transistors is connected by its base to a common control device 38 determining the ignition timing there being located in the connecting lead between the base of the transistor, whose emitter is connected to the collector of the other transistor, and the control device, a rectifier 40 passing current in the direction which coincides with the direction of flow of the emitter base current of this transistor. The emitter collector paths of the transistors are shunted by load equalising resistors 46, 47. The transistors are mounted in a housing 15 which is fixed by a clip on the ignition coil housing. The contact breaker may be replaced by a four pole A.C. generator which supplies blocking pulses to the transistors.
Patent GB-938889-A (GB)
Title: Apparatus for melt spinning of synthetic filaments
IPC: D01D5/092
Filed: 1961-12-19
Abstract: Quench apparatus for the melt-spinning of synthetic filaments comprises an enclosure having a first chamber (not shown) and a second chamber 14, foraminous means 13 having pores therein interposed between said chambers, the first chamber being pressurised with air at a predetermined value to provide a stream of air under pressure at a value below said predetermined value into the second chamber via the pores in the foraminous means, the second chamber having an opening at its upper end 2 and at its lower end 19, means for supplying air under pressure to the first chamber (not shown) a spinning device 4 adapted to extrude molten filaments into the second chamber through the opening 2, the filaments being passed downwardly through the second chamber and thus through the air stream therein flowing at right angles to the filaments for conditioning the latter, the filaments then being passed through opening 19, perforated means 15 provided with throttling perforations 16 for exhausting air from the second chamber at a controlled uniform rate thereby to condition the filaments uniformly and to prevent erratic filament action, the perforations being arranged at opposite sides of an unperforated vertical central portion of the perforated means, the central portion being in spaced parallel alignment with the vertical axis of the path of the filaments passing through the elongated second chamber 14 and means 6, 7 for taking up the conditioned filaments after they have passed through the second chamber.  The perforations 16 are preferably circular, as shown, and at least 5/8 inch diameter, and arranged in longitudinal rows at opposite sides of the unperforated vertical portion, the total perforated area of the perforated means being at least 20% of the total area thereof.  As shown, the perforated means may be mounted as a door to one side wall of the second chamber, the door being of smaller length than the side walls 9, 10 of the chambers and only partially covering the open front side of the second chamber. As shown, the perforated means 15 may be opposite the foraminous means 13 and the throttling perforations may be exactly aligned with the foraminous means.  The foraminous material may be gauze fabric, felt, or a fine mesh wire screen.  A series of such quench chambers may be positioned in extended rows consisting of a series of chambers arranged in side by side relation so that a common side wall is shared by adjacent chambers, and another row of quench chambers may be arranged in back-to-back spaced relation with the other row of chambers, the space between the rows being provided for a common plenum chamber.  The apparatus is especially suitable for the processing of heavy denier filament bundles or yarns, especially of total denier at least 700.  Erratic filament action is avoided and yarn of greater uniformity is obtained.
Patent GB-1129331-A (GB)
Title: An improved sterilising autoclave
Inventor: RAWLINGS ALFRED FREDERICK
IPC: A61L2/24
Filed: 1964-11-09
Abstract: 1,129,331. Sterilizing autoclave. DENT & HELLYER Ltd. 9 Feb., 1966 [9 Nov., 1964], No. 45567/64. Addition to 1088853. Heading A5G. In a modification of the sterilizing autoclave of the main specification, the thermostatically controlled valve means for connecting the water tank, water-chamber and water-heating compartment are replaced by valve means (e.g. solenoid-actuated two way cocks) and a timer is incorporated which controls the process and determines the minimum length of the sterilizing cycle. The valve means, if electrically actuated, may be controlled by the timer or may be operable by a manually actuated switch, e.g. one which operates as the door of the sterilizing compartment closes.
Patent GB-989125-A (GB)
Title: Improved pulse generator
IPC: H03K3/282
Filed: 1962-12-03
Abstract: 989,125. Transistor pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 3, 1962 (Dec. 18, 1961], No. 45682/62. Heading H3T. A pulse generator comprises an emittercoupled pair of PNP transistors 12, 21, one of which is loaded by a delay line 25, an output being taken from the delay line via an NPN transistor 33 in the common base mode. Alternatively, transistors of opposite conductivity types may be used. As described, transistors 12, 33 are normally non-conductive and transistor 21 conductive. A negative input pulse at a terminal 10 reverses the conductive state of transistors 12, 21, 33 and transmits a negative-going voltage step along delay line 25. The negative voltage step at the collector 36 of transistor 33 is passed via diode 50 to the base of transistor 12 so that the conductive state of the transistors is maintained after the end of the input pulse at 10. The negative step at the collector 36 of transistor 33 is also passed via an emitter follower 40 to the output terminal 45. The negative step in line 25 is reflected and inverted by capacitor 27 so that, after a period equal to twice the transit time of line 25, the conductive states of the transistors are reversed, terminating the pulse. Line 25 may be adjustable so as to vary the pulse duration. Capacitor 27 may be replaced by a short circuit if the outer conductor of line 25 is maintained at the supply potential. Diode 51 prevents reflections in line 25 at the end of each pulse. Inductor 38 counteracts the capacitive input impedance of emitter follower 40. The circuit may operate at a frequency of 10 Mc/s. and give pulses with a rise time of 2À5 nS and a fall time of 4 nS.
Patent GB-1240067-A (GB)
Title: Cell structure for positioning and supporting containers in container ships
IPC: B63B25/00
Filed: 1969-09-17
Abstract: 1,240,067. Storage structure in container Ships. MATSON NAVIGATION CO. 17 Sept., 1969 [14 Oct., 1968], No. 45913/69. Heading B7A. Cell structure for positioning rectangular containers 4 vertically in a hold of a ship comprises a plurality of adjacent pairs of spaced opposed cell frames 6 each having longitudinally aligned vertical cell guides 27 disposed in opposed pairs on each of the fore and aft sides of the frame. The cell frames have side 7, lower 13 and upper 12 portions respectively adjacent longitudinal bulkheads 2, inner bottom 3 and the level of the open upper side of the hold, with the frames 6 in vertical planes normal to the longitudinal axis of the ship. The stacks of containers 4 are supported by the frames against athwartship and fore and aft movement. Each of the frames 6 includes frame holding plates 35, 42 adjacent its lower edge by which it is releasably secured within the hold.
Patent GB-1153047-A (GB)
Title: Butadiene Extraction and Purification
IPC: C07C7/156
Filed: 1966-10-14
Abstract: 1,153,047. Butadiene. EL PASO PRODUCTS CO. 14 Oct., 1966 [29 Oct., 1965], No. 46095/66. Heading C5E. Butadiene is purified and extracted from aqueous cuprous ammonium acetate solutions also - containing C 4 -hydrocarbon impurities by introducing the substantially single phase hydrocarbon-containing solution into a quiescent settling zone, controlling and maintaining said solution under non-turbulent flow conditions for a period of time sufficient to establish the condition wherein the ratio X p /X f  is a function of the ratio 1 - V p /V f  characterized by the equation  where X p  represents the C 4 -hydrocarbon impurities expressed as volume per cent of the total hydrocarbons contained in the cuprous ammonium acetate solution leaving the settling zone, X f  represents the C 4 -hydrocarbon impurities expressed as volume per cent of the total hydrocarbons contained in said solution fed to the settling zone, V p  represents the volume per cent of total hydrocarbons in said solution leaving the settling zone and V f  represents the volume per cent of total hydrocarbons in said solution fed to the settling zone; and recovering the butadiene by separation of phases followed by desorption of the butadiene from the cuprous ammonium acetate phase. The residence time in the settling zone may be 10 mins.- 3 hours and the temperature may be 30- 100‹ F.
Patent GB-993373-A (GB)
Title: Improvements in blowing devices for carding machines
IPC: D01G15/46
Filed: 1962-12-07
Abstract: 993, 373. Carding engines. F. REITERER, L. WINDISCH, and J. NIFENECKER. Dec. 7, 1962 [May 28, 1962], No. 46312/62. Heading D1N. A blowing nozzle mounted in front of a carding roller is arranged to be fully open during the initial rotation of the roller only and to be partially or fully closed when the roller has attained a steady speed. The device has particular application in an arrangement in which fibre webs are detached from a carding machine doffer by a combination of three rollers and a blowing nozzle, such as described in Specificiation 976,855. The blowing nozzle 8 is mounted on a cheek 10 rotatable on the axis of the roller 5 and is connected to a pinion 12 rotatable by a chain 13 for moving the nozzle 8 to the position shown in broken lines. Chain 13 is associated also with a pinion 21 connected with a valve 19 in a conduit 18. The valve 19 is fast with an armature 23 adapted to rotate between two poles 24, 24<SP>1</SP> of an electromagnet. When the starting button of the machine is pressed, the electromagnet is energized and the valve is opened, simultaneously the nozzle 8 is moved into operative position. When control buttons for normal speed running or for stopping are actuated, the electromagnet is de-energized and a counterweight 22 closes the valve 19 and moves the nozzle 8. Specification 916, 860 also is referred to.
Patent GB-1162520-A (GB)
Title: Transistor Television Horizontal Scan Generator.
IPC: H03K4/62
Filed: 1966-10-19
Abstract: 1,162,520. Transistor sawtooth circuits. PHILCO-FORD CORP. 19 Oct., 1966 [19 Oct., 1965], No. 46680/66. Heading H3T. A line deflection output stage, e.g. for a portable television receiver, is arranged to be operated from a lower voltage supply 16 by connecting the supply 16 via diode 18 to a tapping on the output transformer 12 intermediate the connections to the storage capacitor 11 and the collector of the output transistor 10, so as to consume a constant current during the scan. If a 12-volt supply 16 is employed, the effective operating voltage across capacitor 11 may be 30 volts. During the first half of each line scan, energy stored in the yoke 13 causes current to circulate through the damping diode 15, capacitor 11 and capacitor 14, storing energy in capacitor 11 which is utilized during the second half of the scan by current through the transistor 10. The turns between terminals B and D compensate for the difference in voltage drop in diode 15 and transistor 10. The current in diode 18 is constant during the scan. Transistor 10 is turned off on the base during the flyback but allowed to become conductive when the collector voltage reverses during the second half of each scan.
Patent GB-1192207-A (GB)
Title: Seal Cartridge for Fluid Coupling for Continuous Flow Centrifuge.
IPC: B04B9/08
Filed: 1967-10-13
Abstract: 1,192,207. Centrifugal separator. BECKMAN INSTRUMENTS Inc. 13 Oct., 1967 [14 Oct., 1966], No. 46778/67. Heading B2P. In a fluid coupling for connecting the rotor interior of a continuous flow centrifuge with stationery sample liquid supply and discharge apparatus, a seal cartridge 90 includes a rotatable sealing element 100 having upper and lower transverse sealing surfaces 148, 150, a cavity 142 for receiving the centrifuge rotor shaft 24 and inlet and outlet passages 154, 152 interconnecting the upper surface 148 of the sealing element 100 with the cavity 142, upper and lower non-rotating seal members 102 and 104 held in sealing engagement .with the surfaces 148 and 150 respectively of the sealing element 100, the upper seal member 102 having liquid sample inlet and outlet passages 164. 162 in communication with the inlet and outlet passages 154, 152 respectively in the sealing element 100, and a spring 106 for biasing the seal members 102, 104 and the sealing element 100 into sealing engagement. The rotor shaft 24 is screwed into the cavity 142 and has axial and radial bores 28, 30 in communication with an annular chamber 146 formed between the shaft and the sealing element 100 and in which the inlet passages 154 open. A centrifuged liquid discharge tube 26 extends from the interior of the centrifuge rotor through the shaft bore 28, into the outlet passage 152. The sealing element 100 and the seal members 102, 104 are contained with radial clearance in a sleeve 96 in the top of which is screwed a cap 98 having axial clearance 176 from the seal member 102 and provided with inlet passages 134 communicating via an annular groove 136 with the passages 164 in the seal member 102. The sleeve 96 is contained with clearance 95 within a housing 50 which is secured to the top of a vacuum-damper bearing 10 mounted over the vacuum chamber which houses the centrifuge rotor. The central outlet passage 162 in the seal member 102 communicates with a centrifuged liquid discharge bore 60 in the housing 50 via a central passage 130, 132 in the cap 98 and tubing 62. Spaces 92, 94 above and below the seal cartridge 90 permit the latter to ride up and down within the housing 50 to accommodate vertical movements of the rotor and shaft assembly. A sample liquid outlet conduit 68 and a centrifuged liquid outlet conduit 68, 64 are formed in the housing 50. During operation of the centrifuge, coolant is conducted through passages 68, 72, through a port 112 in the sleeve 96, around the rotating sealing element 100 and then out via a port 114 and passages 74, 20. The clearance space 95 allows the cartridge 90 to tilt and translate laterally. Clearance spaces 156, 176, 182 permit tilting and lateral displacements of the sealing element 100 and seal members 102, 104 as a unit. O-sealing rings 78, 120, 122, 140, 172, 174 also function to centre the elements with which they are associated and provide supports therefor to resiliently accommodate the various modes of translation.
Patent GB-1421505-A (GB)
Title: Apparatus for controlling operation of the electric brake system of a trailer
IPC: B60T13/74
Filed: 1973-10-08
Abstract: 1421505 Trailer electric brakes LINDE INTERNATIONAL AB 8 Oct 1973 [12 Oct 1972] 46888/73 Heading F2E In an apparatus comprising a trailer electric brake regulator having at least one piston or the like operable by the medium of a fluid-pressure operated brake system of a tractor, the piston or the like, when displaced against the action of a spring, being adapted to produce variations of current in an electronic circuit, such variations being converted into continuous variations of the voltage in the trailer electric brake circuit so that a substantially-continuous voltage in proportion to the braking of the tractor is produced, the piston etc., is associated with a movable portion which is adapted to influence, across an air gap, a component which is connected in the electronic circuit, the variation of width of the air gap varying the current in the electronic circuit. As shown, hydraulic pressure in the brake circuits of the tractor vehicle is applied to pistons 5, 6, against which a washer 7 is urged by an assembly of spring washers 12; the washer 7 is attached to a stud 8 carrying a ferrite plate 10 spaced by an air gap 13 from a coil 15. Variation of hydraulic pressure produces a variation of air gap 13 which, in turn, by means of an electronic circuit 14 (Fig. 2, not shown), produces variation of the voltage applied to the electric brakes 16 of the trailer. The width of the air gap may be adjusted by rotation of a nut 18 connecting the hydraulic section 17 and the electronic section 14. The trailer may be braked separately by a potentiometer 19 placed on the steering column.
Patent GB-1198297-A (GB)
Title: Improvements in and relating to Methods of Concentrating Liquid Foods
IPC: A23C1/08
Filed: 1967-10-13
Abstract: 1,198,297. Concentrating liquids by freezing. SOC D'ETUDES ET DE TRAITEMENTS DE PRODUITS ALIMENTAIRES ET MEDICINAUM. 13 Oct., 1957 [14 Oct., 1966], No. 45899/67. Heading B1G. In a process for concentrating liquid food products by freezing, the liquid is cooled in a first stage to form ice crystals at -‹to 0‹C. and is then cooled in a second stage to -50‹ to -30‹C. to enlarge the ice crystals. As shown liquid is passed to a feed tank 1A whence it is passed to a first crystallizator in tank 4A which is surrounded by a jacket to which refrigerant is supplied at a temperature between -10‹ and 0‹C. The liquid is agitated in the tank 4A from which it passes to a second crystalizator-tank 10A in which it is in direct contact with refrigerant at a temperature of between -50‹ and -30‹C. The ice/liquid mixture then passes to a centrifuge 12A from which concentrated liquid is passed by a pump 33A to further concentration cycles B and C. Ice is passed from the centrifuge to a crusher 32A and after melting in a heat exchanger 38 is delivered to a wash liquid distributor 26A. Liquid produced by washing is passed by a pump 35A to the feed tank 1A. Ice crystals from the centrifuge may be passed to the tank 4A through a line 40A. Nitragen is admitted to the feed tank, the first crystallizator tank, and the tank in which the concentrated product is ultimately collected to provide an inert atmosphere. Following concentration the liquid may be subjected to an atomization or lyphilization process, preferred operating conditions are disclosed and liquid food products suitable for treatment in the process are listed.