baber/WOPTO huggingface dataset:
Patent GB-1232139-A (GB)
IPC: F17C3/08
Filed: 1969-08-21
Abstract: 1,232,139. Crystals. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). 21 Aug., 1969 [29 Aug., 1968], No. 41861/69. Heading F4H. An arrangement for circulating a cryogenic liquid within a body comprises a hood within a bath in which the body is immersed and means for injecting gaseous cryogenic fluid into the hood to circulate the liquid. A superconductive coil 6 is immersed in liquid helium within an inner tank 5, and gas from above the liquid in an outer tank 7 is passed through a duct 14 and nozzle 12 to an upwardly converging hood 10 to circulate the liquid through the channels 13 provided in the coil. The connections 8 to the coil pass through the outer tank 7 and have pins 9 within the liquid helium. A conduit 16 enclosing the leads 8, and an escape duct 17 lead from above the liquid in the inner tank 5. A heater 21 ensures a sufficient supply of gas from the tank 7. The hood may be separate from the coil, and may have an outlet duct terminating above the liquid in the inner tank.
Patent GB-1234113-A (GB)
IPC: D21F3/04
Filed: 1969-06-05
Abstract: 1,234,113. Papermaking. BLACK CLAWSON CO. 5 June, 1969 [10 June, 1968], No. 28603/69. Heading D2A. A paper machine press comprises a first press roll positioned within an endless felt, a second press roll positioned outside the felt and forming a first nip with the first press roll, means positioned within the felt having a curved surface with a radius of curvature substantially smaller than the radius of curvature of the first and second press rolls, the curved surface being movable between a position forming a second nip with the second roll, and a position spaced from the second press roll, and means for driving at least one of the first and second press rolls. The first press roll may be a suction roll, and the means positioned inside the felt may be a third press roll. This third press roll may comprise a rubber-covered metal roll. This roll may be supported by a plurality of rollers arranged in two rows to form a cradle for it, the rollers being supported on brackets which may be moved by fluid pressure means to provide a controlled uniform pressure at the second nip. The second press roll may be supported by two arms, and these may be pivoted by hydraulic cylinders to move the second press roll. The third press roll and its supporting cradle may be connected to these arms. The first and third press rolls may be positioned below the axis of the second roll, and on opposite sides of a vertical plane extending through the axis of the second press roll. The second press roll may be provided with a doctor for removing brake, means being provided to remove the blade from contact with the roll. A saveall pan may be provided about the lower portion of the first press roll.
Patent GB-1256932-A (GB)
IPC: H02K1/17
Filed: 1969-03-28
Abstract: 1,256,932. Machines with permanent magnets. TOKYO KAGAKU K.K. 28 March, 1969 [28 March, 1968], No. 16340/69. Heading H2A. An electric motor includes resilient permanent magnets 4 held against respective curved wall portions 2, 2<SP>1</SP> of the motor casing 1 by internally-extending projections on the casing, such as 3α, Fig. 1, or 10, 11, Figs. 4a, 5a (not shown). Further projections 2α limit longitudinal movement of the magnets in the casing. The magnets may comprise a compound of magnetic powder and rubber or plastics material, and are said to have a sound-muffling effect. The casing may include a second part 5 which fits into the open end of the part 1.
Patent GB-1265798-A (GB)
IPC: G06F7/508
Filed: 1968-08-13
Abstract: 1,265,798. Transistor logic circuits. MARCONI CO. Ltd. 26 June, 1969 [13 Aug., 1968], No. 38699/68. Heading H3T. [Also in Division G4]  A carry signal generator for producing carry signal outputs C1, C2, C3 and C4 in accordance with the formulµ where each G is a generate signal, each P is a propagate signal, CO is an input carry signal, a dot indicates AND and a plus sign indicates OR, comprises a pair of supply terminals 22, 23, a plurality of resistive paths connected one between each carry output C1, C2, C3 and C4 and one of the supply terminals 22, and a plurality of further paths between each carry output and the other supply terminal 23, each further path containing one or more switching elements which is closed by a propagate or generate signal as required in accordance with a particular term of the formula appropriate to that carry output, and where the formula contains more than one term in which the same propagate signal appears each of the further paths corresponding to those terms utilizes the same propagate signal controlled switching element. In Fig. 3, the resistive paths 24-27 and the switching elements are MOSTs (metal oxide silicon transistors) and the carry signals C1, C2, C3 and C4 are produced in respective stages 18-21, MOSTs being shared between the further paths within each stage only. Fig. 4 (not shown) shows a second embodiment in which MOSTs are also shared between the further paths for different carry outputs, the stages being combined. Fig. 5 (not shown) shows a modification of Fig. 4 (not shown), using two similar stages, producing two carry outputs each, the input of one stage corresponding to the input CO of the other being fed via a MOST amplifier from the first. Integrated circuits may be used. The generate and propagate signals come from a half sum generator receiving two 4-bit binary operands from registers, and the carry outputs C1, C2, C3 and C4 are added to the propagate signals P1, P2, P3 and P4 and the input carry CO in a full sum generator. Fig. 2 (not shown) shows a known carry generator like Fig. 3 without the sharing of MOSTs between the further paths.
Patent GB-1266169-A (GB)
IPC: E01F9/615
Filed: 1969-09-05
Abstract: 1,266,169. Road traffic bollards. TREVOR MORRISON ENG. Ltd. 4 Sept., 1970 [5 Sept., 1969], No. 44000/69. Heading E1G. A traffic bollard comprises a rectangularsection sign-carrying body 3-4 whose lower end 8 is circular and is attached to a circular part of a base 1 by an odd number of symetrically-arranged screw or other elements 9 so that (a) the body 3-4 can be aligned as required independently of the base, and (b) the body can be re-attached after damage in a vehicle collision by turning it through 90‹ or 180‹ to present undamaged portions of the lower end 8 to the screws 9. The body shown is of translucent plastics and comprises a head 4 and stem 3 having a spigot interconnection 10 supporting a platform 11 carrying horizontal and vertical lights 12. A plug 14 for the lights engages a socket 15 in or under a lighting gear tray 16 in the base 1 and may be retained by a cord 17 to ensure that it is pulled out of the socket during a vehicle collision.
Patent GB-1266202-A (GB)
IPC: G11B9/00
Filed: 1969-02-12
Abstract: 1,266,202. Recording/playback system. ALLGEMEINE ELEKTRICITATS-GES AEG TELEFUNKEN and TELDEC TELEFUNKEN-DECCA SCHALLPLATTEN G.m.b.H. 12 Feb., 1969 [13 Feb., 1968], No. 7623/69. Heading G5R. In a recording/playback system, particularly for video signals, the signals are recorded in tracks formed by deformations in the surface of a resilient record medium, e.g. in grooves in a disc-shaped carrier and played back by a pickup having a contact surface which compresses the deformations as these are displaced past the pick-up and a transducer element which responds to the reaction pressure applied by the compressed deformations to the surface. The record material is such that the compression is within its elastic limits at the prescribed playback speed. The information may be recorded by producing deformations which vary in crosssectional area or may vary in amplitude in which case they can be formed by a hill and dale method as in Fig. 2. The contact surface of playback pick-up 1 has a length, extending in the track direction which is longer than the longest wavelength recorded, and is formed with a leading edge having a large radius of curvature and a trailing edge which is relatively sharp.
Patent GB-1288904-A (GB)
IPC: F16D13/72
Filed: 1971-05-11
Abstract: 1288904 Friction clutches FICHTEL & SACHS AG 11 May 1971 [13 May 1970] 14287/71 Headings F2C and F2L In an hydraulically operated release machanism for a friction clutch wherein pressure liquid supplied to a chamber 9 acts through a piston 4, sleeve 3 and thrust bearing 7 to disengage the clutch, cooling oil is supplied to the clutch through a chamber 8 on the opposite side of the piston 4 to bias the latter in a clutch engaging direction. During clutch engagement the pressure in the chamber 8 acts through the piston 4 and sleeve 3 to move the thrust bearing 7 out of contact with radial release levers 19 or a diaphragm spring (20) As shown the sleeve 3 is axially slidable on a fixed guide sleeve 2 and the cooling oil flows from the chamber 8 through radial ducts 24, an annular gap 16 between the sleeves 2, 3 and axial ducts 15 to the interior of the clutch. In Fig. 2 (not shown) the axial ducts (15) are omitted and the cooling oil flows from the gap (16) through radial ducts (36) in the sleeve (2) and a gap (27) between the sleeve (2) and an output shaft (1) to the interior of the clutch. In Fig. 3 (not shown) the guide sleeve (2) is omitted and the sleeve (3) slides on the output shaft (1). In Figs. 4-7 (not shown) the pressure liquid chamber (9) is formed on the side of the piston (4) nearer to the clutch whilst the cooling oil chamber (8) is formed on the side of the piston (4) remote from the clutch and clutch disengagement is effected by axial movement of the sleeve (3) away from the clutch. The sleeve (3) carries a thrust bearing (7) which acts on the inner ends of spring fingers of a diaphragm spring (20). In Fig. 4 the cooling oil flows from the chamber (8) through a gap between the sleeve (2, 3) to the interior of the clutch. In Fig. 5 the cooling oil flows from the chamber (8) through a radial duct (36) in the sleeve (2) and through an annular gap between the sleeve (2) and an output shaft (1) to the interior of the clutch. In Fig. 6 the cooling oil flows from the chamber (8) through bores (39, 40, 41) in the output shaft (1) to the interior of the clutch. In Fig. 7 the guide sleeve (2) is omitted and the cooling oil flows through a gap (17) between the sleeve (3) and the output shaft (1) to the interior of the clutch. An hydraulic supply circuit (Fig. 8, not shown) comprises a pump (31) which supplies cooling oil to the chamber (8) through a pressure reducing valve (30) and hydraulic actuating pressure to the chamber (9) through a control valve (33).
Patent GB-1297414-A (GB)
IPC: B21C47/30
Filed: 1970-07-22
Abstract: 1297414 Winding and reeling PRODUCTION EXPERTS Inc 22 July 1970 [9 March 1970] 35418/70 Heading B3E  A toggle link 50 whose ends are pivotally movable in pockets of a body 1, and a segment 6 of an expandible mandrel is repaired by enlarging the pockets so that inserts 48 and 63 are interposed between one end of the link and the body and the other end of the link and the segment. Recesses, in each of four segments of a mandrel, accomodating the link ends are enlarged to allow the inserts 48 to be placed in them and the inserts 48 are locked in position by pins 43 and 46. Similarly, inserts 63 are place in enlarged recesses in the mandrel body and locked in position by a plate 66. New toggle links 50, having their arcuate end surfaces plated with chromium, are provided with enlarged axial openings 53 and 54 so that bushing 55 and 56 respectively may be accommodated. Steel pins 59 and 65 are passed through bushings 55 and 56 and are inserted in bushings 57, 58 and 61, 62 respectively in the segments and body. The inserts and bushings 48, 55, 57 and 58 are preferably made of a metallic material while the inserts and bushings 56, 61, 62 and 63 are made of a non-metallic material such as Nylon.
Patent GB-1306364-A (GB)
IPC: G05B19/00
Filed: 1969-05-15
Abstract: 1306364 Timed control operations in electric circuits D H GREENHILL 13 Aug 1970 [15 May 1969] 24722/69 Heading G3T [Also in Division B3] A timed control arrangement for a machine cutting coiled springs or metal strips into predetermined lengths, modifies the machine operation - e.g. stops a material feed motor - in the event of faulty operation. The arrangement includes timers T1, T2, Fig.1. T2 is energized via a normally closed relay switch 5a and begins its timing cycle immediately a supply switch S is closed. The period of its cycle is just longer than the time normally required for a given length of spring 8 Fig.2, to be fed from a mandrel 9 to reach a probe 6. If no contact is made with the probe within the said period the timer through contacts therein (not shown) interrupts the spring feed motor supply and actuates an audible or visual alarm. If the spring contacts the probe 6 then terminals X Y are bridged thereby so that a transistor conducts energizing a relay coil 4 which closes contacts 4a. This in turn energizes a relay coil 15, thereby opening contacts 5a and tripping and resetting the timer T2, and simultaneously starts a timer T1. The period of T1 is just greater than the time normally necessary for a cutter 10 to sever the spring. If the spring is cut and severed then the link across X Y is broken and the transistor cuts off stopping timer T1. If the spring is not severed then T1 continues timing and stops the machine also actuates an alarm at the end of its period. Relay 4 and the transistor may be omitted, the timer T1 being started directly on contact of the spring with the probe 6.
Patent GB-1311485-A (GB)
Title: Apparatus for stripping moulds from ingots
IPC: B22D29/04
Filed: 1972-07-21
Abstract: 1311485 Ingot strippers WELLMANCRANES Ltd 21 July 1972 [5 Sept 1969] 44122/69 Heading B3F An ingot stripper comprises a mast assembly suspended below a lifting means 14 by first 42 and second 44 rope assemblies, the mast assembly having first and second parts vertically movable relative to one another, the first part having lower first pulley means 15 and upper second pulley means 16 and the second part having third and fourth pulley means 18 and 47 respectively, the arrangement of the pulleys and ropes being such that one rope assembly has an effective number of rope falls which is two greater than the other rope assembly. The ingot stripper shown is a dual-purpose machine and has two movable pulley carriers 17 and 20. In a single purpose machine, i.e. one used for " down-stripping " only or " up-stripping " only, the pulley carrier 20 is omitted and the pulleys 21 thereon are either mounted on the mast frame 11 alongside pulleys 16 or omitted completely. A pair of ingot tongs 22 are pivotally mounted on a carrier 24 which is vertically movable relative to the mast frame 11, and a pair of mould tongs 27 are pivotally mounted at 28 on the mast frame. An ingot ram 33 extends downward from the pulley-carrier 17 and passes through an ingot tong actuator 34. When the ram 33 is raised, a collar 37 thereon abuts shoulders 38 on the actuator 34 thus causing the latter to be raised so that the ramps 35 on the actuator engage shoes 36 on the tongs 22 and thus close the tongs. In operation the mast assembly is moved to the required position by rotating the drums 12 and 13 in the same direction at the same rate so as to raise or lower the mast assembly. For an "up-stripping" operation, the drums 13 are rotated so as to raise the ropes 44 and the drums 12 rotated so as to lower the ropes 42 at exactly the same rate as the ropes 44 are raised. This results in the mast frame 11 remaining stationary whilst the pulley carrier 17 moves upwardly and thus causes the tongs 22 to grip the ingot and pull it from the mould. In this mode of operation a pin 41 on the carrier 17 supports the pulley carrier 20 so that-the pulleys 21 are effectively mounted on the carrier 17 and the rope falls below them are not effective in providing force multiplication. For a " down-stripping " operation the drums 13 are rotated so as to lower the ropes 44 and the drums 12 rotated so as to raise the ropes 42. This causes the mast frame 11 to rise and the carrier 17 and thus ram 33 to remain stationary. The mould is pulled upward by the tongs 27 and the ingot pushed out of the mould by the ram 33. In this mode of operation, the pulley carrier 20 is supported by the mast frame 11 by means of an-enlargement 49 so that the pulleys 21 are effectively mounted on the frame 11 and the rope falls below them are effective in providing force multiplication.
Patent GB-1315840-A (GB)
Title: Diaphragm pumps
IPC: F04B43/02
Filed: 1970-11-04
Abstract: 1315840 Diaphragm pumps MUNSTER SIMMS ENG Ltd 7 Oct 1971 [4 Nov 1970] 52558/70 Heading F1A A double-acting diaphragm pump, e. g. for a caravan or boat, comprises diaphragms 12 defining pumping chambers 8 and reciprocated by a pedal 26 on a bell crank lever 20 acting via arms 22 and a member 13 biased by a spring 16, each pumping chamber 8 having passages 31 connected in pairs by tubes 32 containing inlet and outlet valves respectively. Each tube 32 has a radially-extending connecting pipe 33, and is rotatably mounted in passages 31. Each valve comprises a flexible flap 37, the outlet valve assembly being shown. Mounting brackets 40 are seatable in a number of positions on the pump.
Patent GB-1323194-A (GB)
Title: Telescopic shock absorbers
IPC: F16F9/38
Filed: 1971-02-25
Abstract: 1323194 Injection moulding GENERAL MOTORS Ltd 13 Jan 1972 [25 Feb 1971] 5454/71 Heading B5A [Also in Division F2] A dust shield tube 10, Fig. 3, for a telescopic shock absorber (Fig. 5, not shown) and comprising a hollow cylindrical body portion 12 formed adjacent one end with two axially spaced rings of circumferentially equi-spaced internal projections 14, 16, the projections 14 of one ring alternating with the projections 16 of the other ring with circumferential clearance (18, Fig. 2, not shown), is made by injecting molten polypropylene into an annular space between a two part mould core 30, 32 and a cylindrical inner surface of an outer mould portion 36, the end faces of the two parts 30, 32 of the mould core being formed with recesses 46, 50 which mate with projections 48 when the mould parts are brought together, and the radially outer end of each recess 46, 50 opening into a cavity 52, 54 in the mould part 30, 32 (the cavities 52 forming the projections 14, the cavities 54 the projections 16). After cooling the injected polypropylene the two parts 30, 32 of the mould core are withdrawn in opposite axial directions. The projectionforming cavities 52, 54 are open in the axial direction towards the end faces of the mould core parts to facilitate withdrawal of these parts. The polypropylene is injected through a feed passage 38 into a runner 40, 42 with a gate 44 at each end.
Patent GB-1325299-A (GB)
Title: Inflation valves
IPC: F16K15/20
Filed: 1971-05-17
Abstract: 1325299 Valves INSTRUMENT RESEARCH LABORATORIES Ltd 1 May 1972 [17 May 1971] 15260/71 Heading F2V An inflation valve for life-rafts and inflatable craft comprises a body 6 with an aperture 9 and a resiliently flexible valve member 10 which in normal use makes sealing contact with a first valve seat on the valve body and opens under external pressure, said valve member having a portion 17 which is resiliently urged in sealing contact with a second seat which flexes to relieve internal pressure above a predetermined value. In the first embodiment, a diaphragm is held by a spring 20 against a flange 16 of a support post 13. A protective cover 21 is provided with a vent passage and a razor-cut 25 to prevent ingress of dirt. A body 6 can be easily removed to facilitate deflation. In a second embodiment (Fig. 3), the support post is formed with resilient tapered segments 27 with an enlarged head 28 for securing to the valve body.
Patent GB-1327623-A (GB)
Title: Measuring arrangements
IPC: B23Q23/00
Filed: 1970-10-22
Abstract: 1327623 Gauging and measuring WERKZEUGMASCHINENKOMBINAT FRITZ HECKERT KARL - MARX - STADT VEB 22 Oct 1970 50216/70 Heading B3B [Also in Division G1] A measuring machine or machine tool comprises a ball type worm screw 2 for advancing a carriage 1, a digital measuring device including a disc 4 rotating with the worm screw and a stator 5, and a correction device for correcting the reading for errors in the worm screw. The correction device includes a cam 16 which is rotated with the worm screw by gears 14 and 15 and which has grooves and depressions which are a magnified representation of the corrections to be applied to the reading. In Fig. 1, the corrections are sensed by a roller on an arm and applied to the stator 5. In Fig. 3, the corrections are sensed by a roller 9 attached to a cage 17 carrying a shaft on which are mounted planetry gears 25, 26. The gears 25, 26 form part of a gear chain linking disc 4 to the worm screw and the corrections are thus applied to disc 4. The disc 4 may carry digital markings for direct viewing or may provide an electrical output for driving a digital display.
Patent GB-1329242-A (GB)
Title: Treatment of human hair with fluorinated vinyl polymers
IPC: A61K8/81
Filed: 1969-10-24
Abstract: 1329242 Fluoro-polymer compositions UNILEVER Ltd 21 Oct 1970 [24 Oct 1969] 52301/69 Heading C3P [Also in Division A5] A vinyl polymer derived from a fluorine-containing monomer of the formula (wherein Y is a partially or wholly fluorinated C 1-11  alkyl group, Y<SP>1</SP> and Y<SP>11</SP> are each H or partially or wholly fluorinated C 1-11  alkyl groups and R<SP>2</SP> is H or CH 3 ) is used to treat wet hair to reduce the time required for the drying thereof. The polymer may be applied to the hair from a hair cosmetic preparation or from an aqueous latex emulsion. The preparations may contain the polymer in an amount of from 0À0001 to 6% by weight and the emulsion may contain it in an amount of from 0À0001 to 0À02% by weight. The vinyl polymers are formed by free radical catalysed polymerization of terminally unsaturated monomers, and they can be homopolymers or copolymers of the monomers with other monomers which contain an ethylenic linkage, e.g. conjugated dienes such as butadiene and chloroprene, and alkyl, aminoalkyl or vinyl esters of acrylic and methacrylic acids. It is preferred that the vinyl polymer is also derived from N,N-diethylaminoethyl methacrylate or butyl methacrylate. The polymers may also be terpolymers or quaterpolymers of the fluorinated monomers and other monomers. In an example 1H,1H-perfluorobutyl methacrylate is polymerized in aqueous emulsion using N,N-dimethyloctadecylamine acetate as surfactant and 2,2<SP>1</SP>-azobisisobutyramidine dihydrochloride as initiator. Other polymers are also described and other methods of preparation referred to. A shampoo solution containing monoethanolamine lauryl sulphate (10%) and 0À003-0À3% by weight of the vinyl polymer solids is used to demonstrate the reduction of drying time of wet hair to which the shampoo has been applied as compared with the use of a shampoo containing no polymer or a known fluoropolymer Zepel B (Zepel is a Registered Trade Mark). Other shampoo compositions containing other detergents are also described. Specification 1,268,636 is referred to.
Patent GB-1330785-A (GB)
Title: Broaching machines
IPC: B23D37/10
Filed: 1971-01-18
Abstract: 1330785 Broaching cylindrical or partcylindrical bores VANDERVELL PRODUCTS Ltd 14 Jan 1972 [18 Jan 1971] 2368/71 Heading B3L A broaching machine for broaching cylindrical or part-cylindrical bores comprises a tool 24 having at least one cutter 29 for increasing a bore in an article and a radially outwardly facing burnishing surface 30 spaced axially along the tool from the cutter, means to support an article 18 with the axis of the bore coincident or substantially coincident with the tool axis and means for moving the tool and support relatively to one another so that the cutter operates on the article first followed by the burnishing surface. As shown, a half-cylinder is held in a recess in work-holder 14 by clamps 22 and half-rings 19. The tool has two rough cutters 28 followed by two finishing cutters 29 followed by the burnishing surface 30. Also the tool is rotatably mounted with respect to a vertically movable platen 11.