baber/WOPTO huggingface dataset:
Patent GB-578784-A (GB)
Title: Improvements in and relating to means for indicating the angular displacements of a shaft at a distance
IPC: H02K24/00
Filed: 1944-03-30
Abstract: 578,784. Telemetering systems. HUGHES & SON, Ltd., H., SPROULE, D. O., and HUGHES, A. J. March 30, 1944, No. 5914. [Class 40 (i)] [Also in Groups XXXV and XXXVI] Phase changing means for use in distant indicators of the angular displacement of shaft include a sine potentiometer with two brushes giving two outputs, the phase of one being then shifted into quadrature with the other, the two potential being combined in transformers to produce an output displaced from the input by an angle equal to the angle of rotation of the brushes. The sine potentiometer comprises a flat insulating sheet a wound with resistance wire b having a centre tap c and two brush arms e, f insulated from each other and fixed mutually at 90‹ carried on a central shaft g. With a sinusoidal input voltage and shaft g so displaced that the angle between arm e and centre tap radius is #, the magnitudes of the voltages between c, e and c, f are respectively proportional to sine and cos #. The phase shift circuit K advances the potential c, f by 90‹ and by circuit j the potential c, e is made equal in magnitude to potential c, f. The two resultants are then subtracted by transformers m, o which have their secondaries connected in opposition and it is shown that the output at r, s lags in phase behind the original applied voltage by #. Thus a phase displacement meter can be used as a distant indicator of the angular position of the shaft carrying the potentiometer arms. In a modification the potentiometer arms are on the output shaft of a directional gyroscope, and the phase displaced volts are fed to the grid of a triode, the output of which is connected to a pair of deflection plates in a cathode ray oscillograph, the other pair of plates receiving the input volts, and the oscillogram indicates deviations from the normal of the vehicle carrying the gyroscope.
Patent GB-1007264-A (GB)
Title: A process for purifying waste liquors containing nitrocresols
IPC: B01J41/05
Filed: 1964-02-12
Abstract: Nitrocresols recovered in acetone, dioxane or tetrahydrofuran as washings from ion-exchangers is acidified and the organic solvent distilled off when the nitrocresol collects as an oil. Specifications 867,449 and 885,717 are referred to.ALSO:Ion exchangers used for removing nitrocresols from waste liquors are regenerated with mineral acids and acetone, dioxane or tetrahydrofuran.  Specifications 867,449 and 885,717 are referred to.
Patent GB-1294297-A (GB)
Title: Improvements in or relating to brushes and their method of manufacture
Inventor: STOHR CHRISTIAN
IPC: A46D3/05
Filed: 1970-02-06
Abstract: 1294297 Brushes C STÍHR 6 Feb 1970 [6 Feb 1969] 5935/70 Heading A4K [Also in Division B5] A brush comprises an extruded cone of thermoplastics material having bristles extending therefrom and uniformly distributed over the surface of the cone. The bristles which may be of metal or thermoplastics material are embedded in the cone while the cone is still warm from being extruded (see Div B5). If the bristles are of thermoplastics material, heat fusion or welding of the bristles to the cone material occurs thereby forming an integrated structure. Bristles having three triangular lobes may be embedded in the cone.
Patent GB-970422-A (GB)
Title: Improvements in or relating to attenuators
IPC: H03H7/24
Filed: 1961-02-17
Abstract: 970,422. Variable attenuators. L. ROHDE, and H. SCHWARZ, [trading as ROHDE & SCHWARZ]. Feb. 17, 1961 [Feb. 20, 1960; March 11, 1960], No. 5941/61. Heading H1W. A variable attenuator comprises a number of units 1, 2 &c., each slidable between two positions in one of which a short-circuiting conductor 9 is connected between a pair of fixed terminals 18, 19 and in the other of which the short-circuit is replaced by a resistive T-network 10. The body of the attenuator comprises two parallel ground-planes 3, 4 shaped to accommodate between them the units 1, 2 &c. which slide in the direction of the arrows 12. Located between the slidable units are fixed insulating strips 13, 14 &c. bearing transverse conductive strips 18, 19 &c. forming an array of fixed terminals. The inner conductors of input and output coaxial sockets (not shown) are connected respectively to the first and last conductive strips and the outer conductors are connected to the ground-planes 3, 4. The units provide a switchable array of ten 10 db. T-networks, one 5 db. network, two 2 db. networks and one 1 db. network, the switching being effected by means of cams arranged on a shaft (not shown) running lengthwise along the array. Each slidable unit consists of a metal box having detachable side walls 28, 29. These contain apertures 31, 32 which respectively accommodate the ends of a conductive bar 9 and a resistive T-network 10. The T is made of three carbon-layer resistors, the end of the shunt resistor being connected to the metallic end wall of the box. To complete the shielding, the insulative side walls 28, 29 are conductively plated except in the region of the apertures 31, 32. The ends of the elements 9, 10 protrude from the box to make selective contact with the strips 18, 19.
Patent GB-374016-A (GB)
Title: Improvements in and connected with rotary separators or extraction apparatus
IPC: C11B1/10
Filed: 1931-02-25
Abstract: <PICT:0374016/III/1> The interior surface of a rotary extraction drum is provided with perforated hollow projections to which solvent is admitted for a predetermined arc of revolution of the drum.  A perforated drum a is rotatably mounted in trunnions c, c<1>, one of which has three eccentric bores h connected through pipes k to three hollow perforated stirring ribs j.  The trunnion c rotates within a bearing l in which a fixed plate n having a slot is mounted.  In operation, the rotating drum, filled with the material to be extracted, is exhausted through a vent s, and solvent, water, or steam is admitted through supply pipes l<1>, l<2>, and passes through the slot in the plate n, to each of the bores h which are brought in turn opposite the slot.  Solvent is thereby admitted to that part of the drum covered by the material which is displaced to one side during rotation.  Solvent drips into the sump b<1> from which it is vaporized by a steam jacket or coil p.  When extraction is complete, the used solvent is withdrawn, steam is passed in to remove solvent vapours, and the residue is dried by the heating coil p. Specification 373,629 is referred to.
Patent GB-858653-A (GB)
Title: Apparatus for mixing liquids
IPC: B01F5/04
Filed: 1956-02-28
Abstract: 858,653. Mixing fluids in How. WADDINGTON, R. S., and DUVAL, B. Feb. 22, 1957 [Feb. 28, 19561, No. 6085/56. Class 86. [Also in Group XXVIII] An injector device for mixing liquids comprises a body part 1, Fig. 1, formed with a Venturi passageway having a convergent inlet 2, an elongated throat section 3 and a divergent outlet section 4, through which flows a primary liquid, the secondary liquid being induced through a passageway and port 7 communicating with the throat 3. The port 7 leads from a valve chamber 8 provided with a slide valve 11 (omitted from Fig. 1 but shown in Fig. 4) which controls the passage 32 of the secondary liquid and is provided with a part 12 which fits into the port 7 so that on closing the valve primary liquid may flow through the passageway without substantial contamination by the secondary liquid. The setting of the valve 11 is controlled by a rotatably adjustable cam 17 provided with locking means thus varying the flow of secondary liquid. The flow of the secondary liquid to the valve chamber 8 is controlled by a second valve opened by the flow of primary liquid. A lift valve 51 has a stem 49 joined to a diaphragm 53 clamped between two parts 48, 54. When the primary liquid is supplied to the passageway some of the liquid flows through conduits 59 and 57 to the underside of the diaphragm 53 thus causing the valve 51 to lift and allow the flow of secondary liquid from inlet 43 to pass the valve 51 and stem 49 to the chamber above the diaphragm from where it flows to the chamber 8 through passage 32, Fig. 4. The end 5 of the body part 1 may be constructed in various ways for attaching to a water tap and the supply of secondary liquid may be from a tank the arrangement being such that atmospheric pressure is obtained in the tank at a fixed distance from the bottom. In a modified form an additional port 7 may be provided, with a similar valve means for the secondary liquid or a third liquid. The throat secticn may contain a circular groove for the secondary liquid. A non-return valve may be provided in the primary passage to prevent backflow of the liquid if a blockage occurs. The Specification also describes preferable dimensions for the Venturi passageway as described in Specification 805,046. Specifications 858,654 and 858,655 also are referred to.
Patent GB-619050-A (GB)
Title: Improvements in and relating to electric discharge devices and incandescent lamps
IPC: H01J5/46
Filed: 1946-02-27
Abstract: 619,050. Direct connections between conductors. M-O VALVE CO., Ltd., and RAMSAY, H. T. Feb. 27, 1946, No. 6122. [Class 38 (i)] A discharge device 13 is provided with a heavy-current connector between a lead-in conductor 11, 15, 16, 17 and a terminal tag 19, comprising a flexible multi-turn spiral 10 of metal strip having the conductor 11 connected to its inner end. The width of the strip is at least eight times its thickness, the rod 11 and the tag 19 preferably being attached thereto over its whole length.
Patent GB-1060592-A (GB)
Title: Improvements in or relating to devices for working crop lying on the ground
IPC: A01C3/08
Filed: 1964-02-13
Abstract: In a haymaking machine, of the kind having a transverse frame carrying a plurality of driven rake-heads 7-12 rotating about axes oblique to the ground, the rake-heads are mounted in groups on supports 4, 5 which are pivoted to a main beam 1 of the frame, a further beam 2 being pivoted to one end of the main beam to carry a support 6 for a further group of rake-heads.  Power is supplied from a towing tractor (not shown) through a jointed shaft 53 to a gearbox 14 integral with the beam 1, which is hollow and carries internally a driving shaft for the rake-heads.  The beams 1 and 2 are pivoted together about an oblique axis, co-planar with a coupling which joins the internal driving shafts in the beams. The supports 4, 5, 6 are similarly joined to their respective beams about oblique axes and have internal shafts which are connected to the main driving shafts in the same way.  Each rake-head is supported by a castorwheel 13 mounted on an extension of the shaft about which the tined rake-head rotates, this shaft extending downwardly and rearwardly at about 45 degrees to the horizontal.  For transport, the device is drawn endways, the supports being turned through 90 degrees; the drawbar 79 is removed from its normal position and is attached to one of the endmost supports.
Patent GB-1071586-A (GB)
Title: Controlled atmosphere storage of green bananas
IPC: A23B7/148
Filed: 1966-02-11
Abstract: Bananas are preserved, before the onset of the climacteric stage of respiration, by packing them in bags of low density polyethylene, removing excess air from the bags to collapse them around the contents, e.g. by suction, sealing the bags with for example a twist tie and storing the bags in ventilated fibre-board boxes.  The type and thickness of polyethylene film used is chosen to have permeabilities to oxygen and carbon dioxide such that within eight hours after sealing the atmosphere within the bags reaches equilibrium with a reduced oxygen content and with a carbon dioxide content not exceeding 7% by volume.  Other synthetic films that may be used are specified.  Less desirably the plastics bag may be replaced by flexible permeable plastics windows in an otherwise impermeable package.  After the storage period the bananas may be ripened by cutting off the top of the bags to expose the contents to the atmosphere.
Patent GB-789354-A (GB)
Title: Improvements relating to viscosimeters
Inventor: SCHWAIGER KARL
IPC: G01N11/06
Filed: 1956-02-28
Abstract: 789,354. Viscosimeters. DAIMLER-BENZ AKT.-GES. Feb. 28, 1956, No. 6233/56. Class 106 (2). A viscosimeter comprises a container 17 for the liquid under test and an element 26 mounted on a support 24, which may also accommodate a thermometer 28, having means for being loaded externally by weights g<SP>1</SP>, g<SP>2</SP>, g<SP>3</SP> the element forming with the cylinder a flow gap whose width is automatically varied with varying load or with varying viscosity by, for example, forming the element as a flexible plate movable into positions 261, 271 or as a divided disc having its halves adapted under load to swing about their pivot against spring resistance. The container 17 is supported in an evacuated jacket 13 the enclosed space 15 being used for the circulation of a heating or cooling medium from inlet 14 through an inner jacket 11, via orifice 12 to the outlet 16, the temperature of the medium being indicated on a thermometer 30. The jackets 11, 13 may be transparent. The viscosity is ascertained by timing the fall of the element 26 through the liquid under different loads.
Patent GB-925834-A (GB)
Title: Electro-mechanical switching apparatus for controlling the sequence of operations in washing machines and like devices
IPC: H01H43/12
Filed: 1960-02-23
Abstract: 925,834. Time switches. MALLORY BATTERIES Ltd. Feb. 23, 1960 [March 27, 1959], No. 6296/60. Class 38 (5). [Also in Group XXIV] In apparatus for controlling the sequence of operations in washing-machines or the like by means of the sequential advance of switchcontrol means, selector means is operable to select the initiating position for beginning a determined portion of one of the operations, variable speed clutch mechanism advancing the switch control means rapidly to the initiating position where it is stopped by mechanical means, the clutch then advancing the switch control means at a slower speed through the determined portion of the operation. Depression of a selector button 18 moves a slidable latching bar to release other buttons and  latch itself. The movement of the latching bar also engages a toothed clutch 80, 81 to drive a cam-shaft 13, through reduction gearing from an electric motor 10, and rotate rapidly a number of cams 14, each of which closes associated contacts 15 at predetermined points in its cycle. Depression of a selector button 18 also depresses a spring 28 and hence moves a detent 41 into the path of a pin on the associated cam 14. When the selected detent 41 stops the cam-shaft 13, the motor-drive causes the toothed clutch plates 80, 81 to ride clear of each other and as the shaft 13 slides axially, the detent 41 is no longer in the path of its associated cam pin. The reduction gearing continues to rotate and reciprocates a pawl 92 by means of an eccentric 95 turning in a slotted plate 90. The pawl 92 rides in notches in the periphery of a ratchet wheel 96 loosely mounted on the cam-shaft 13 and imparts step-by-step rotation to this wheel. When the pawl 92 reaches an especially deep notch it drops sufficiently to engage also a smaller ratchet wheel 94 and turns this by one step to turn also a cam 14 to which the ratchet wheel 94 is connected by studs 61 and hence turn the cam-shaft 13. With this arrangement the cam-shaft rotates rapidly until halted by the selected cam pin and then continues slowly and intermittently for the remainder of its cycle.
Patent GB-644005-A (GB)
Title: Lead assembly
IPC: H01R43/00
Filed: 1947-03-05
Abstract: 644,005. Cable harness. BENDIX AVIATION CORPORATION. March 5, 1947, No. 6299. Convention date, March 7, 1946. [Class 36] A lead assembly comprises a tubular conduit 58 having a fitting 12, 14 at each end and enclosing a cable 18 having end contacts 20 of the pin or socket type secured thereto, wherein at least one resilient insert of generally annular form is located within the fitting, the external configuration of the insert being complementary with the interior configuration of the fitting. An elbow piece may be inserted between one end of the conduit 58 and one of the end fittings 12, a resilient insert being provided to support the cable within the elbow. The inserts are placed in position by means of a tubular tool having a sufficiently large bore to pass over the contacts 20. The insert is placed on the tool, which is passed over the end of the cable and then withdrawn, the insert being held in the desired position within the fitting 12.
Patent GB-675666-A (GB)
Title: Improvements in or relating to means for moulding concrete blocks and a method of moulding concrete blocks therewith
IPC: B28B7/00
Filed: 1949-03-08
Abstract: 675,666. Moulding concrete &c. blocks. THOMSON, C. N., THOMSON, C. E., and THOMSON, M. A. March 8,1949 [March 15, 1948; Nov. 25, 1948], Nos. 6322/49 and 6323/49. Class 87(ii) Separate and unconnected end members and side members of a mould for concrete blocks are adapted to be mounted on a flat base, the end members having flanges for embracing the side members and being themselves held in position by means of loose abutment blocks. In Fig. 3 the mould is shown collapsed the abutment blocks having been withdrawn and the end pieces 3' having been slid along the base 1 away from the moulded block 7 thus allowing the sides 2 to be withdrawn. When the ends 3 are made of wood, the wooden retaining flanges 4 may be connected to them by metal straps 8 screwed or nailed to the ends and the flanges. Alternatively, the ends and the flanges may be cast integrally in metal or concrete. The sides 2 may be made of steel, glass or concrete. Grooves are formed in the ends of the block by parts 5 attached to the inner sides of the end pieces 3. The modified end piece of Fig. 5 has detachable retaining flanges 4a which extend downwards as at 10 to fit flush against the sides of a plank used for the base. A series of holes 3b for bolts 11 enable the flanges to be adjusted for various widths of plank. Hollow blocks may be cast using an open-ended pre-cast hollow concrete centre-piece 14, Fig. 8, which is placed open side down upon a layer of concrete 15 previously cast in the mould. Further concrete is then cast around the centre-piece. Blocks having a through cavity are cast using a tapered concrete core (not shown) having a handle at its upper end to assist withdrawal. A number of blocks may be cast simultaneously using the moulds of the invention arranged end to end, the extreme end members being supported by abutment blocks.
Patent GB-1151636-A (GB)
Title: Brush Holder for an Electric Commutator Motor
IPC: H02K5/14
Filed: 1967-02-10
Abstract: 1,151,636. Brush-holders for dynamo-electric machines. ELECTROLUX A.B. 10 Feb., 1967 [24 Feb., 1966; 13 Dec., 1966], No. 6524/67. Heading H2A. In a brush-holder of the kind which includes a metal guide tube (for a carbon brush), mounted on an insulating support and having within it a spring pressing the brush into contact with the commutator, the guide tube is open at one side, and is supported at its open side on a bed portion of the support, this portion being integral with the remainder of the support and being of substantially the same length as the tube. When the brush assembly shown is assembled, brush 18 lies partly within guide tube 17 and the guide tube 17 is located on the bed portion 16 of support 15 with the aid of profile 24 and a projection 26 which engages with a recess 25 in the guide tube. A retaining spring 21 fits in a slot 22 under wall portions 23. A connecting lead (not shown) passes through the slot between lugs 30, 31 and has a connector engaging with lug 28.
Patent GB-754948-A (GB)
Title: Compositions for the dyeing of hair and methods of use thereof
IPC: A63F3/04
Filed: 1954-03-05
Abstract: 754,948. Dyeing hair; dyestuff compositions. UNION FRANCAISE COMMERCIALE ET INDUSTRIELLE. March 5, 1954 [March 26, 1953], No. 6582/54. Addition to 710,134. Classes 2(4) and 15(2) The composition of the parent Specification for use in the dyeing of hair (comprising the substituted or unsubstituted trihydric phenol and the sulphite, hydrosulphite or mercaptan reducing agent Specified therein) is modified by the addition of crushed leaves e.g. mastic, chestnut, walnut or henna leaves. To the composition may also be added, at the time of its use or during its manufacture, ammonia or an ammonium salt or an amine or an amine salt. Thickening agents such as carboxymethyl cellulose or alginates, may also be added. Specification 754,949 is referred to.
Patent GB-719484-A (GB)
Title: Improvements connected with cabinet type driers for ceramic ware
Inventor: HOVEY ERNEST LESLIE
IPC: F26B15/14
Filed: 1952-03-14
Abstract: 719,484. Drying-apparatus. HOPOL, Ltd. March 16, 1953 [March 14, 1952], No. 6633/52. Class 34(2) Apparatus for drying ceramic ware &c. comprises a cabinet a having within it a continuous chain conveyer b following a zigzag path and carrying trays d to support the ware the movement of the conveyer being intermittent and arranged so that when the conveyer is stationary the trays on adjacent runs of conveyer are in staggered disposition, hot air being blown downwards from ducts e which correspond in number to the trays in a given path and are arranged so that the trays when stationary are directly beneath said ducts. The ducts e have adjustable baffles to regulate flow and the moist air is extracted through a duct l. The ware travels from a region of high humidity to one of low humidity and is subjected to a gradual temperature rise.
Patent GB-1442254-A (GB)
Title: Disc carrier for supporting discs of a clutch or a brake of a change-speed mechanism
IPC: F16D13/68
Filed: 1974-02-13
Abstract: 1442254 Mounting clutch discs; mounting "full-face" brake discs REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 13 Feb 1974 [13 Feb 1973] 6634/74 Headings F2U and F2E Clutch or brake discs 10,11 are mounted on or in a drum 1 for axial movement by radial extensions 10<SP>1</SP>, 11<SP>1</SP> of the discs 10, 11 respectively engaging in apertures 2 of the drum 1, each aperture 2 having bearing surfaces 5, 51 for the disc extensions, the bearing surfaces being formed such that an imaginary cylinder corresponding to the mean diameter of the drum 1 would intersect the surfaces 5, 5<SP>1</SP> substantially in the middle of them in the radial direction. The bearing surfaces 5, 5<SP>1</SP> may be formed by folds 6 in a sheet metal drum, in which apertures 3 and 4 are punched and the metal between these is cut axially and then folded, or the surfaces 5, 5<SP>1</SP> may be formed by moulding or sintering (Fig. 2, not shown). The reaction members for the discs 10, 11, may be formed by distortions of the drum 1 (Figs. 6, 7 and 8, not shown).
Patent GB-464367-A (GB)
Title: Process for covering zinc sheets or objects with lead or with a lead-containing alloy
IPC: C23C2/10
Filed: 1936-03-05
Abstract: A protective and fluxing coating is formed on articles made of or coated with zinc by coating them, e.g. by immersion or spraying, with a solution of ammonium chloride, and allowing the coating to dry. The articles are then coated with lead or lead alloy by dipping, and, if desired, the lead coating may subsequently be thickened by casting.  The ammonium chloride solution preferably contains 50-70 per cent by weight of ammonium chloride and is preferably used at a temperature near to the boiling point.  The articles are left in the lead or lead alloy for a time sufficient to ensure complete volatilization of the ammonium chloride coating.  Compound plates of lead and zinc may be formed by casting zinc ingots, rolling them partially, coating with lead as described, and then rolling to the final thickness, or if desired the cast ingots may be coated directly and then rolled, for example first in an ordinary hot or cold rolling mill and then in piles, the pile being preferably placed between two uncoated ainc sheets.  Alternatively rolled sheets of zinc may be coated with lead and then either planed or rolled in piles.  When a rolled zinc sheet is lead-coated it is preferably introduced into the lead bath in a direction perpendicular to that of the last rolling.