baber/WOPTO huggingface dataset:
Patent GB-396233-A (GB)
Title: Improvements in separators or classifiers for ore pulp and the like
IPC: B01D21/06
Filed: 1932-08-29
Abstract: 396,233. Gravity-separation apparatus. MAcLEAN, D., Government Gold Mining Areas (Modderfontein) Consolidated, Ltd., Brakpan, Transvaal, South Africa. Aug. 29, 1932, No. 24093. [Class 46.] A separator for separating solids from liquids comprises a stationary vessel with a conical bottom sloping upwardly to a central discharge aperture for the deposited particles, and a rotating spiral blade to carry the particles up the sloping bottom to the discharge aperture. The pulp is introduced into the vessel preferably in a tangential direction and the liquid is discharged from a peripheral outlet, the level of which is preferably adjustable. Pulp from a tank 13 is introduced tangentially through an elbow piece 12 into a vessel 1 having a conical bottom 2 lined with concrete 8 sloping upwardly to a central discharge aperture 9. The side wall of the vessel is cut away at 15 to form a peripheral discharge for the liquid, slats 18 being inserted in guides 17 to vary the height of the overflow. Attached to a hub 23a on a shaft 23, which is suspended from ball bearings 33 and driven by worm gear enclosed in an oil chamber 39, are radial arms 24 which carry a spiral blade 20 extending from a point 21 near the wall of the vessel to a point 22 adjacent the central discharge 9. The blade 20 is substantially vertical and the lower edge conforms with and is at a short distance above the conical bottom 2. The inner convolutions are provided with holes 26 to allow liquid to flow towards the periphery of the vessel. To the radial arms 24 is attached an annular plate or shield 51 with a vertical flange 53, which acts as a distributing plate for the pulp. The velocity of the pulp entering the vessel through the elbow piece 12 may be regulated by an angularly adjustable baffleplate 12a, Fig. 4, having side flanges 12b pivoted at 12c, the baffle-plate being adjusted by varying the point of connection of a handle 12e attached to the plate and a quadrant 12g.
Patent GB-241490-A (GB)
Abstract: 241,490. Martinka, M. July 17, 1924. Two-stroke-cycle engines; cylinders, regenerative bodies in.-In gas engines the air and gas are supplied by independent pumps q, b. the separate charges entering the cylinder through independent regenerators r<1>, r<2>. The exhaust passes out to two valves j<1>, j<2> through both the regenerators.
Patent GB-940039-A (GB)
Title: Improvements relating to electromagnetic relays
Inventor: JOYCE WILLIAM HENRY
IPC: H01H29/20
Filed: 1961-07-04
Abstract: 940,039. Electromagnetic relays. JOYCE ELECTRICAL CO. Ltd. June 28, 1962 [July 4, 1961], No. 24149/61. Heading H2B. The armature 16 of a relay is mounted on a shaft 13 which is rotatably supported by a single bearing ball 7 at each end which is seated in a recess in the end of the shaft and in a corresponding recess on the relay frame. One of the recesses on the frame is formed in the end of a bolt 9 so that the loading of the bearing balls can be adjusted. The armature 16, and a member 17 carrying a mercury switch or switches 29 are clamped to the shaft between a shoulder of the shaft and a nut 18 screwed on to one end of the shaft. The movement of the armature is limited by eccentrically mounted, adjustable, rubber buffers 24, 25 and the bias of the armature is adjustable by means of a counterweight 23 carried by an arm 20 of the member 17. The bias may be provided by a spring acting alone or together with the counterweight.
Patent GB-769453-A (GB)
Title: Improvements in or relating to walls, partitions, doors, and like structures
IPC: E04B1/61
Filed: 1954-08-20
Abstract: 769,453. Walls; partitions. GRUNDY, M. L., and GRUNDY, J. M. [Representatives of Grundy, E. K.]. July 25, 1955 Aug. 20, 1954], No. 24234/54: Class 20(4) A cavity wall or partition comprises panels a or b assembled in opposed pairs, each panel having vertical inturned edges a<SP>1</SP>, a<SP>2</SP> or b<SP>1</SP> co-operating members f, g, h, i and j or x; y for clamping together the edges a<SP>1</SP>, a<SP>2</SP> or b<SP>1</SP>, a<SP>2</SP> so as to space apart the panels of each pair and connect adjacent pairs in longitudinal alignment, and capping, footing and end plates c, d, e respectively, secured to certain of the clamping members whereby the structure is totally closed with the clamping members disposed internally. As\shown,.in Figs. 2, 3, each panel a has its vertical edge a<SP>1</SP> turned back on itself and the opposite edge a<SP>2</SP> turned outwardly to mate with an adjacent edge a<SP>1</SP>. The one pair of end panels b have both vertical edges b<SP>1</SP> turned back on themselves, so that both end plates e fit flat against the end edges a<SP>1</SP> and b<SP>1</SP>. The panels a, b have inset top and bottom edges a<SP>3</SP>, b<SP>3</SP> to receive capping and footing plates c, d. Clamp members f, h and j are centrally, treaded and members g, and i centrally apertured, all members being shaped to engage the edges a<SP>1</SP>, b<SP>1</SP> and a<SP>2</SP>, the member f fitting inside members g and i, and panels are secured by bolts k. The members i and j are used at the top and bottom of the panels and have rightangle flanges i<SP>2</SP>, f<SP>2</SP> with screw-threaded holes i<SP>3</SP>, j<SP>3</SP>, to which the capping and footing plates c, d are secured by flat headed screws m, the members j being used only on the end panels, where they and the members h at intermediate positions are used to secure the end plates e by screws n. A number of different shapes for the end edges a<SP>1</SP> a<SP>2</SP> are shown, each with correspondingly shaped clamping members, one being shown in Fig 10 with clamping members x, y.
Patent GB-1397264-A (GB)
Title: Exchange packing element
IPC: F28D19/04
Filed: 1972-05-23
Abstract: 1397264 Laminated corrugated paper bodies G C F ASKER and M A HUBSCHER 23 May 1972 24267/72 Heading B5N [Also in Divisions B1 and F4] A fluid treatment packing comprises a laminated body of paper sheets, at least some of which are corrugated so that channels for fluid passage through the packing are formed between adjacent layers, the sheets being encapsulated with a hard-setting moisture-impervious continuous organic resin film which bonds particulate material to the exposed surface of the film. The laminate may be flat or coiled and may comprise corrugated sheets only or alternating flat and corrugated sheets. The resin may be applied in completely or incomplately polymerized form either to the uncorrugated sheets or to the assembled body, and the particulate material is applied in powder or granite form before the resin sets or hardens. Specified resins are epoxy resin, polyester, polyacrylic acid, polyalkyl acrylates, polyamide, polystyrene and styrene-acrylonitrile copolymer. The particulate material may be a dessicant, an ion-exchange material or a heat-conductive material, according to the intended use of the packing (see Divisions B1, F4); examples are given. The resin may be chemically modified for ion-exchange purposes and may be filled with Al, Cu or Zn dust.
Patent GB-1421954-A (GB)
Title: Method of producing corrugated cardboard sheets
IPC: D21H27/00
Filed: 1973-05-22
Abstract: 1421954 Corrugated cardboard paper ELDA AG 22 May 1973 [8 June 1972] 24331/73 Heading D2B In a method of producing corrugated cardboard sheets, a main fibre direction is obtained in a sheet from a cylinder-type cardboard machine especially when working on the counter-current principle, the sheet then being corrugated in such a manner that the majority of the fibres are disposed in the longitudinal direction of the corrugation. The corrugation is carried out in the moist state preferably above 50%. Further, the moisture should be kept below 20% after drying so that those fibres which do not lie along the longitudinal direction of corrugation have no tendency to move towards their pre-corrugation position. The raw material fed into the cylinder machine may be provided with additives which improve the water repellent or flame-inhibiting properties.
Patent GB-962037-A (GB)
Title: Remotely controlled machine tool
IPC: G21C1/30
Filed: 1962-06-25
Abstract: 962,037. Turning; welding by fusion. EUROPEAN ATOMIC ENERGY COMMUNITY, EURATOM. June 25, 1962 [July 25, 1961], No. 24361/62. Headings B3R and B3T. [Also in Divisions F2 and G6] A remotely controlled machine-tool for use in an atomic power plant 3, 6 comprises a tubular body 16 containing clamping elements 17 for a fuel element &c. 27, a rotatable ring 26 for operating the elements 17, a driving sleeve 18 having screw threads 39 engaging a rotatable tool-table 19 carrying a tool-holder 83, an epicyclic gear 21, 41, 42, 43, 48, 49, 53 between the table and sleeve 18 to effect relative rotation between the sleeve and table and thus axial traverse of the table, and three driving shafts 7 connected to a power source or sources 9, one shaft being for rotating the sleeve 18 and table, another for operating the ring 26 and the other for driving a carrier 50 for the planet wheels 49. The machine may operate in an upright position resting on feet 28, or it may be supported in an inverted position by the feet, Fig. 2 (not shown), or it may swing freely. A cutting-tool 87 or welding electrode may be carried by the holder 83 opposite a steady rest 84 having a ball-bearing 89 engaging the work. The steady and tool are fed by screws 81, 82 operated by star wheels 91 and abutments 93 which is moved axially by a star-nut 92. A control unit and gear-box 8 are disposed between the driving motor 9 and the shaft 7, which are coupled (see Division F2) to a gear driving a gear 40 on the sleeve 20, a worm 58 driving gears 25, 55 for operating the jaws 17, and a worm 62 driving a gear on the carrier 50. A sun-gear 42 loose on the sleeve 20 has one ring of teeth 44 engaging fixed pinions 53 and another ring engaging the planet wheels 49, which also engage teeth 41 on the sleeve. The fixed pinions 53 also engage the teeth 48 on the table gears 43, 44 each having 100 teeth and gears 41, 48 each have 97 teeth, giving the table slightly faster or slower speed of rotation than the sleeve depending on the direction of rotation of carrier 50. The jaws 1 7 are in the form of sector the of a cone, with perforated transverse partitions 30 to collect swarf, but allow the passage of flushing liquid supplied by a spray head 14. Grooves (not shown) in the tapering bore of the body 16 guide the jaws as they are moved by the screw-threaded ring 26.
Patent GB-1438149-A (GB)
Title: Microwave circuits
IPC: H03B19/18
Filed: 1973-05-22
Abstract: 1438149 Microwave filters NIPPON HOSO KYOKAI 22 May 1973 [23 May 1972] 24361/73 Heading H1W [Also in Division H2] A microwave filter comprises a two part 5<SP>1</SP>, 5<SP>11</SP> waveguide which, when assembled, encloses a thin E-plane septum 1 defining a cut-off portion of the waveguide and carrying slots providing planar circuit members. Thus, the H-shaped slots 8 provide coupled resonators and form a filter. The edge of the septum 1 may be spaced from the broad side of the waveguide so as to form a ridge-line or image slot line 16, Fig. 8. Coupled to this line are a pair of L-shaped half-wave resonators 15, 15, spaced by a coupling interval of one quarter-wavelength. These provide a band-stop filter. As shown in Fig. 11, the septum is in two parts and defines a slot line loaded with dielectric material 17. In another embodiment (Fig. 6, not shown), two image slot-lines on either side and at either end of the septum are coupled by half-wave slots.
Patent GB-939896-A (GB)
Title: A syringe
Inventor: CASTIGLIONE KENNETH
IPC: A61M5/00
Filed: 1962-06-25
Abstract: 939,896. Surgical syringes. KENNETH CASTIGLIONE Ltd. June 25, 1962, No. 24409/62. Class 81 (2). [Also in Group XXVIII] A pump, e.g. for injecting vaccines, comprises a spring-loaded piston 21 reciprocable by a hand trigger 25 to draw liquid from a source via an inlet 7 and valve 8 and deliver the liquid via a valve 13 and a nozzle 10, to which a hypodermic needle may be attached. A rubber covered handle 31, forming the pump casing, is attached to the pump assembly by bayonet means. The actuating linkage comprises arms 27 pivoted to trigger 25 and connected to piston 21 through pin-and-slot connections 22, 28. An adjustable stop 29, 30 is provided on one of arms 27.
Patent GB-1510812-A (GB)
Title: Gasified-liquid filling machine
IPC: B67C3/08
Filed: 1975-06-06
Abstract: 1510812 Counterpressure bottle filling head CROWN CORK DE ARGENTINA SOCIEDAD ANONIMA INDUSTRIAL Y COMERCIAL 6 June 1975 [6 June 1974] 24428/75 Heading B8T A counterpressure filling head for gasified liquids comprises a central counterpressure and vent tube 36, 46 whose upper end is initially closed by a seal 37 which is depressed against spring 38 by a cap 34 so long as a cam 53 bears on the cap to depress it and its connected sleeve 33 against spring 32. A further, wider diameter cam 52 initially depresses an outer tube 15 against spring 57 such that a gasket valve 28 attached at the lower end of the tube 15 seals the bottom outlet of a bell chamber 48 and seats with the latter against valve seat 29. In operation a lever 25 is actuated to move cam 53 away from cap 34 and allow the latter and its sleeve 33 to rise. The seal 37 then also rises and pressurized gas within the reservoir flows to the bottle via cap apertures 35 and the tube 36, 46. After pressure equalization, cam 52 is moved away from the tube 15 whereby the tube 15 is raised by spring 57 to raise the gasket valve 28 against the bias of spring 51 to provide communication between the bell chamber's inlet and side outlet 49. During the ensuing filling step the bell chamber is held down against the pressure of spring 51 by the liquid flow, but as soon as counterpressure tube side aperture 47 is covered a back pressure within the bottle slows the liquid flow and allows spring 51 to raise the bell chamber slightly to re-seal its bottom with the gasket valve 28. Surface tension prevents liquid flow through the resultant small space between the bell chamber bottom and the seat 29. During the filling step the cam 53 is caused to locate the seal 37 close to the counterpressure tube such that the tube is closed rapidly if the bottle bursts. Ultimately the cams are actuated to restore the initial position of the seal 37 and tube 15. The head is one of several.
Patent GB-592238-A (GB)
Title: Improvements in and relating to electric welding arrangements
IPC: B23K11/26
Filed: 1944-12-06
Abstract: 592,238. Supply systems for condenser discharge resistance welders. PHILIPS LAMPS, Ltd., KERSHAW, A., and SLADE, C. E. Dec. 6, 1944, No. 24440. [Class 38 (iv)] In a capacitor discharge spot welding system, two or more condensers 7, 8 are discharged in succession through the primary of the welding transformer 1, the arrangement being such that whilst one condenser is discharging at least one other is being charged, for instance from a source 11 through a transformer 10 and rectifier 9. Alternate connection of the condensers to the charging source and to the transformer is by contactor pairs 21, 22 and 28, 29 having actuating coils 19, 27. The coils also actuate normally closed auxiliary contacts 24, 26 and 17, 30 respectively. Closure of an initiating switch 12 energizes a relay 13, 14 to cause a master timer 15 to close contacts 16 in the circuit of a subsidiary timer 18 which, over contacts 20, energizes coil 19 thereby opening contacts 24, 26 and closing contactors 21, 22 to charge condenser 8 and discharge 7. When timer 18 times out, its contacts 20 open and de-energize coil 19, disconnecting the condensers and, over contacts 24, energizing a further subsidiary timer 23 which operates similarly to timer 18 and causes discharge of condenser 8 and charging of 7. The cycle of operations repeats until the master timer contacts 16 open. This timer may be dispensed with, the subsidiary timer controlled directly by relay 13, 14. A reservoir condenser may be connected permanently across the charging source and chokes may be included in the charging circuit to prevent large surges. Alternate discharges through the transformer may be in opposite directions and protective means for preventing reversal of polarity of the condensers as well as for ensuring their discharge when the apparatus is not in use, may be provided.
Patent GB-636922-A (GB)
Title: Tape dispenser and supporting bracket assembly
IPC: B65H35/00
Filed: 1946-09-23
Abstract: 636,922. Tape dispensers. JOHNSON & JOHNSON (GREAT BRITAIN), Ltd. Sept. 4, 1947, No. 24441. Convention date, Sept. 23, 1946. [Class 18] A pressure sensitive adhesive tape dis-- penser is supported by a bracket adapted to be secured to a support. The dispenser comprises two side walls 23 which extend upwardly to form ears 26 between which a roll of tape is supported. Front and rear walls 24, 25 connect the side walls and the front wall 24 is extended to form a support 32 for the tape and to provide a severing edge 33. Bottom members 28 are connected to the lower edges of the side walls and terminate centrally in abutting flanges 29. The bottom member 28 extends forwardly of the flanges 29 sufficiently to leave a space between its edge and the front wall. The supporting bracket is provided with a platform 15, having two raised portions 16, 17, and downwardly extending side portions 14 having guide edges 20 which slide in guide 19 of a supporting plate 12. Lugs 22 are provided in the plate 12 to prevent inward movement of the side portions 14 and stops 21 are positioned to limit the movement of the edges 20 in the guides 19. The plate 12 is adapted to be secured to a support and the bracket is then slid into position. The dispenser is positioned on the bracket so that a portion 34 of its rear wall 25 extends beneath the portion 17 and so that the portion 16 projects through the space between the front wall and the member 28. When the dispenser is moved forwardly the portion 16 overlaps the member 28 and the portion 17 encloses a portion of the rear wall 25 so that whilst the dispenser is in use it is held firmly in position. To remove the dispenser the reverse operation is effected.
Patent GB-731384-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating electric lamps
IPC: H05B41/392
Filed: 1952-10-01
Abstract: 731,384. Switching and supply systems for lamps. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Sept. 23, 1953 [Oct. 1, 1952], No. 24635/52. Class 38 (4). For on-off switching, e.g. in signalling, or for varying the brightness of one or more incandescent lamps or discharge lamps, there is provided at least one, or as shown, two inverse parallel connected, gas-filled gridcontrolled thermionic valves; e.g. thyratrons V1, V2, connected in series with the lamp(s) between A.C. supply leads 3, 4, the valves being rendered non-conductive by an alternating bias voltage until the application of a discharge initiating positive voltage pulse to the valve grid when the anode also is positive. The positive voltage pulses are fed from the secondary windings 5, 6 of a transformer T2 whose primary winding 2 is connected to a phase-shifting network comprising a variable resistance R 4  serially connected with a capacitor C, whereby the instant of valve ignition may be controlled. The bias is supplied by a transformer T, whose secondary windings 7, 8 provide a voltage which preferably is 180 degrees out of phase from the supply. voltage, and may have tappings or alternatively separate secondary windings to provide cathode heating current for the valves. The transformer T1 may also have filament heating secondary windings should the discharge lamps require them.
Patent GB-1387755-A (GB)
Title: Process for the alkylation of hydrocarbons with alkenes
IPC: B01J27/08
Filed: 1972-05-25
Abstract: 1387755 Alkylation catalyst EXXON RESEARCH & ENG CO 25 May 1972 [25 June 1971] 24648/72 Heading B1E [Also in Division C5] A catalyst, used for alkylating hydrocarbons, comprises (a) at least one Lewis acid of the formula MX n  where M is selected from the elements of groups IVB, V and VIB, X is halogen and n is 3 to 6, and (b) a Bronsted acid which is fluorosulphuric acid and/or trifluoromethane sulphonic acid. A liquid diluent such as SO 2 ClF, SO 2 F 2  or fluorinated hydrocarbons may be present or the catalyst may be supported on an inert support e.g. fluoridecoated Al 2 O 3  or aluminosilicates. Lewis acid components used in the Examples are SbF 5 , AsF 5 , TaF 5 , NbF 5 , VF 5 , TiF 4  and MoF 6 .
Patent GB-945100-A (GB)
Title: Improvements in polarised relays
IPC: H01H51/22
Filed: 1961-07-07
Abstract: 945,100. Electromagnetic relays. SIEMENS & HALSKE A.G. July 7, 1961 [July 8, 1960], No. 24661/61. Heading H2B. A polarised relay has an armature 1 which is movable into any one of three stable positions, a central position where it is maintained by two sets of springs 6-18, and two end positions where it is maintained by the polarising flux. A pair of magnets 21 provide the polarising flux and an electromagnet coil 28 the actuating flux. In the central position contacts 2 carried by the armature 1 bridge contacts 4 carried by the springs 6. Each spring 6 is adjustable by a screw 15 and has a slot 26 in its upper end in which the adjustable spring 18 is located. Each spring 6 follows the armature from the centre for a distance a which is determined by adjusting the position of spring 18 in slot 26. In each end position bridging contacts 2, 3 carried by the armature engage resilient contact 4 and a fixed adjustable contact 5.
Patent GB-971774-A (GB)
Title: Polymers from aromatic compounds
Inventor: REVELL KENNETH STANLEY
IPC: C08G75/02
Filed: 1961-07-10
Abstract: Aromatic hydrocarbons with two or more alkyl groups attached to the nucleus, at least two of the groups each containing at least one H atom attached to the carbon atom a  to the aromatic ring, are heated with sulphur above 300 DEG C. at 30 to 2,000 atmospheres, unreacted sulphur is removed, and polymers and copolymers are separated e.g. by fractional extraction with organic solvents. The products contain from 0-10% of sulphur.  Suitable hydrocarbons are o, m and p-xylenes, mesitylene; pseudocumene; p-diisopropyl benzene; di-alkyl naphthalenes. In examples (1) p-xylene and flowers of sulphur were heated at 325 DEG C. and 35 atmospheres for 1 hour.  H2S was liberated and unreacted sulphur removed by digition with caustic soda. Extraction of the reddish-brown solid residue with petroleum ether yielded a yellow waxy material, and a benzene-soluble residue. The yellow waxy solid was separated chromatographically into polyparaxylenes with mol. wts. between 210 and 440 and low polymers containing some sulphur. (2) is similar. (3) mesitylene was used. (4) p-diisopropylbenzene was used.
Patent GB-980616-A (GB)
Title: Improvements in or relating to electrical screening
Inventor: KRAUS ALEXANDER
IPC: H01P1/04
Filed: 1962-06-29
Abstract: 980,616. Waveguide couplings. L. ROHDE, and H. SCHWARZ, [trading as ROHDE & SCHWARZ oHG]. June 29, 1962, No. 25083/62. Heading H1W. [Also in Division H2] Leakage of electromagnetic wave energy between the flanges of adjacent waveguide or coaxial line sections is prevented by recessing the flanges in such a manner that the flanges contact each other over the protruding planar areas between the recesses. The protruding areas need not register exactly, but may overlap. As shown, the flanges 1, 2 of adjacent waveguides are provided with corresponding annular grooves 5, 6 of triangular section. The distance between the grooves is a small fraction of the wavelength of the propagated energy. Straight grooves or two systems of intersecting straight grooves may be used. The waveguides 1, 2 are coupled by a screw-threaded collar 3.