baber/WOPTO huggingface dataset:
Patent GB-1250923-A (GB)
IPC: F01P3/14
Filed: 1969-06-23
Abstract: 1,250,923. Cooling I. C. engine valves. SULZER BROS. Ltd. June 23, 1969 [June 21, 1968], No.31521/69. Heading F1B. An I. C. engine has at least one liquid-cooled valve 3, Fig. 1, provided with one or more coolant conduits 20, 21 moving with the valve and connected to stationary coolant ducts by hoses 23, 24 or by cylindrical connecting members (34), Fig. 3 (not shown), which guidably and sealingly receive the upper ends of the coolant conduits. In either form the connecting means is isolated from the casing 13 containing the valve drive mechanism, by a rigid partition 15 or by a flexible diaphragm to prevent any coolant, e.g. water, escaping from damanged connecting means from entering the casing 13 and mixing with the engine lubricating oil, the escaping water instead being discharged through an aperture 27. Means indicating that water is escaping and therefore that damage has occurred, may be provided. The coolant conduits are connected to the interior of the valve through a plate 8. The plates of two adjacent valves, e. g. the exhaust valves of the same cylinder or of adjacent cylinders, may have laterally-projecting arms (28, 29), Fig. 2 (not shown), which co-operate to prevent rotation of the plates. Alternatively, the projecting arms may co-operate with a rib or groove in the casing 13.
Patent GB-1251167-A (GB)
IPC: B04B1/04
Filed: 1970-08-07
Abstract: 1,251,167. Centrifugal separators. BATTELLE MEMORIAL INSTITUTE. 7 Aug., 1970 [8 Aug., 1969], No. 38291/70. Heading B2P. A centrifuge for separating emulsions into two liquid constituents of different densities comprises a rotating drum 1 having an admission chamber 13 for the emulsion to be separated at one end, an outlet chamber 19 for the separated constituents at the other end, and an intermediate portion including a separating zone consisting of longitudinally extending separate passages, e.g. tubes 2, arranged around an axial hub 3 and connecting the chambers 13, 19. The admission chamber 13 has an axial inlet 8 communicating with the ambient atmosphere. The outlet chamber 19 is equipped with at least one outlet 21, Fig. 1 or 31, Fig. 2, for the constituents of lower density communicating with the ambient atmosphere and discharging this constituent at a distance from the axis of rotation 5 of the drum greater than the radius of the inlet 8 and smaller than the radius of the hub 3. The outlet chamber 19 is further equipped with at least one outlet duct 27, 22, Fig. 1, or 27, 32, Fig. 2, for the constituent of higher density communicating with the ambient atmosphere and extending from a peripheral zone of the chamber 19 towards the axis of rotation 5 up to a radial distance equal to or slightly greater than that of the outlet 21 (31). The emulsion to be separated is fed through a fixed pipe 12. Baffles 14, 16 Fig. 1, may be provided upstream of the tubes 2 to deviate the emulsion so as to separate therefrom any solid impurity by centrifugal force before entry into the tubes. The tubes may be inclined to the axis of rotation and they may have a non-circular and/or asymmetrical cross-section to promote coalescence of the emulsified liquid globules. The tubes may be helical instead of rectilinear. Instead of tubes, the passages may be formed by an annular honeycomb structure or by an assembly of spaced corrugated plates. The centrifuge of Fig. 1 may have its axis in any other position than the horizontal.
Patent GB-1252858-A (GB)
IPC: B41M5/132
Filed: 1970-03-12
Abstract: 1,252,858. Colour-reactive record sheets. NATIONAL CASH REGISTER CO. 12 March, 1970 [8 April, 1969], No. 11823/70. Heading D2B. [Also in Division C3] Pressure-sensitive record material comprises a supporting sheet having a coating on one surface, which coating includes starch granules, preferably ungelatinized, and pressure-rupturable micro-capsules containing a solution of a colourless basic chromogenic material that develops colour when reacted with an acidic material. The coating may also contain a binder, e.g. of gelatinised starch. The starch granules are preferably larger than the microcapsules and protect them from premature rupture. Other binders referred to are poly (vinyl alcohol), hydroxyethyl-cellulose, methylcellulose, carboxymethyl-cellulose, casein and ethylene-vinyl acetate copolymers. The microcapsules used in the Examples are of gelatingum arabic produced by coacervation and contain a mixture of chlorinated diphenyl and oil having dispersed therein, 3,3-bis(paradimethylaminophenyl)-6-dimethylaminophthalide alone or with benzoyl-leuco methylene blue. In Examples 1-4 the microcapsules contain the two dye-precursors, the granules may be from any of seven different plant sources or may be hypochlorite-modified, and the binder is a gelatinized hydroxyethylated starch. Example 5 uses polyvinyl alcohol solution as binder; Example 6 applies the granules separately and Example 7 applies the binder separately, but these three are otherwise similar to Examples 1-4. In Examples 8 and 9 the microcapsules contain only the first dye-precursor, but the compositions are otherwise similar to Examples 1-4. In Example 8, the coreactive material is applied as a solution of paraphenylphenolformaldehyde resin and parachlorophenolparaoctylphenol-formaldehyde resin in toluene.
Patent GB-1288075-A (GB)
IPC: A63F7/06
Filed: 1969-05-02
Abstract: 1288075 Indoor golf game V B P STEWART 31 July 1970 [2 May 1969] 22624/69 Heading A6H  A golf game comprises cards showing holes of a golf course on which can be inserted markers to indicate the movement of a golf ball corresponding to the movement of a steel ball 6 on a second playing surface 1 comprising a sheet of foam rubber or like compressible material and a projecting device 2 for projecting the ball 6 down the sheet towards a hole 9, the foam material resisting the movement of the ball. When the players marker arrives on the green on the card a lighter ball is used on the playing surface. A graduated board is used to measure deviation of a ball from the line of play 12. The cards may be double-sided.
Patent GB-1290694-A (GB)
IPC: C13B20/00
Filed: 1969-11-12
Abstract: 1290694 Dextranase TATE & LYLE Ltd 11 Nov 1970 [12 Nov 1969] 55403/69 Heading C3H [Also in Division C6] Dextranase to be used to degrade dextran present in a sucrose product during the prodution of raw sugar from sugar cane or during the refining of raw cane sugar is obtained by the growth of a dextranase-producing microorganism, e.g. Penicillium funiculosum or Penicillium lilacinum, in the presence of dextran as the principal or sole carbon source. This dextran may be obtained by growing Leuconostoc mesenteroides in the presence of sucrose, cane juice, molasses, &c. Several strains of Leuconostoc mesenteroides may be used to produce a mixture of dextrans to simulate the mixture to be found in the sucrose product to be treated. The Leuconostoc mesenteroides is grown for a period of 16 to 20 hours at a temperature of 25 to 30‹ C. under micro aerophilic conditions with an initial pH of 6À8 to 7À2. The diluted crude culture filtrate, after removal of the Leuconostoc mesenteroides and sugar, is used as a growth medium for Penicillium funiculosum &c. at a temperature of 25‹ to 35‹ C. and a pH of 5À5 to 7.0 for 72 to 120 hours, and the resulting dextranase is recovered as a solid or liquid concentrate. Example 6 describes the treatment of dextrancontaining raw sugar juice with a mixture of dextranase and an amylase, e.g. fungal α- amylase, bacterial α-amylase or gluco-amylase.
Patent GB-1295140-A (GB)
IPC: G06V10/12
Filed: 1970-11-23
Abstract: 1295140 Optical Apparatus NORTH AMERICAN ROCKWELL CORP 23 Nov 1970 [24 Feb 1970] 55660/70 Heading G2J [Also in Division G4] A raised pattern is read by directing a beam of electromagnetic radiation into a body so as to be totally internally reflected at a surface of the body, and using the raised pattern to press a flexible sheet of material into optical contact with the surface to frustrate the total internal reflection over an area having the shape of the pattern, the flexible sheet being movable to bring fresh portions adjacent the surface. The patterns may be  embossed numerals on a credit card, or the raised part may be ground in which patterns are formed as depressions or holes. The optical pattern thus formed is taken as the negative image in the totally internally reflected beam or the positive image in the critical angle cone or both and displayed on a screen and/or projected onto a photo-cell array. The credit card may be moved perpendicularly to its surface to press the flexible sheet against the surface of the body which is stationary, the flexible sheet being advanced periodically (manually or automatically) to bring unused portions into use. Alternatively, the card may be driven by a roller having a resilient rim, through the gap between this roller and a rotatable disc, this disc being the body in which total internal reflection occurs, the flexible sheet being a loop entrained around the disc and a roller. Adjustable guides for the card are provided. The card itself triggers operation by closing a switch. A column of photo-cells is used in this embodiment, their outputs being digitised using a threshold obtained via an integrator from a reference photo-cell or by averaging the outputs of the photocells above, and sampled in turn repeatedly to serialize an effectively two-dimensional scan of the pattern to feed recognition means. A modification supports the above disc between three rollers (rather than on a shaft), one of these rollers being that used for the flexible sheet loop (see above). The loop could be fixed to the disc in which case a shallow depression is provided in the centre of the width of the circumferential surface of the disc, the loop being pressed into this depression by the raised pattern. A further embodiment moves the card on a carriage between a roller and the flexible sheet loop to press the sheet against the body in which total internal reflection occurs, this body being stationary. The sampling referred to is synchronized with the card speed, by referencing with the drive motor or (if the apparatus is hand-driven) with the disc (by photo-cell detection of timing marks on the disc or using a shaft position encoder on the disc shaft).
Patent GB-1295905-A (GB)
IPC: H03J1/06
Filed: 1970-02-17
Abstract: 1295905 Uses of luminescence W PREH [trading as PREH ELEKTROFEINMECHANISCHE WERKE JAKOB PREH NACHFOLGER] 17 Feb 1970 [8 March 1969] 7637/70 Heading C4S [Also in Divisions E2 F4 H1 and H3] A channel selecting unit for HF receivers such as television sets with capacitive diode tuning has voltage dividers 1 provided with adjusting and indicating elements 2, 3, 4 for producing stored tuning voltages and switches 1, 2 are arranged in a row and are operable by keys 10, 13 which are mounted in a hinged flap door 7 for covering the adjusting and indieating elements. As shown in Fig. 2, the handle part 13 of the lever key 10 is pressed so as to slide in switch knob 2. A luminescent plastics pin 15 projects into a hole 16 in the pressed key 10 to show it has been pressed. Pressing another key 10 releases the previously pressed key. Blade spring tongues 14 press the keys into light engagement with the ends of the knobs 2 and when the flap door 7 is opened these blade springs engage a chamfered face (7<SP>1</SP>, Fig. 5, not shown) on the door 7 and hold it open.
Patent GB-1297321-A (GB)
IPC: G11B15/18
Filed: 1971-05-05
Abstract: 1297321 Cassette recorder S MURATA 5 May 1971 [9 May 1970(3)] 13114/71 Heading G5R In a miniature type tape cassette recorder, inward movement of a control plate carrying erase and record/reproduce heads and a pinch roller, switches the recorder from its stop to its record/reproduce mode and pivotal movement of the plate switches it to its fast forwarding or fast rewind modes. In its record /reproduce mode a gravity operated cam responsive to the orientation of the recorder switches the recorder to recording or reproducing operation. Motor 31 operated via switch 86 drives the flywheel 72 of capstan 73, and idler 84 via belt 83 and pulleys 74, 78 respectively and also drives idlers 41, 42 mounted on pivotable plate 51 via belt 85 from the flywheel 72. To switch the recorder to record/reproduce operation (Figs 6 and 7, not shown) control plate 43 is moved by operation of control knob 17 in the direction B until pin 98 on the plate is engaged and held by spring operated latch 69. During this movement erase and record/reproduce heads 44, 45 and pinch roller 46 enter the cassette and engage the tape, the latter against capstan 73; pin 63 moves in slot 62a and pivots lever 64 against the action of spring 67 to operate motor switch 86; part 80 of the plate moves away from pin 79 on lever 76 so that this can be pivoted by spring 81 to move the driven idler 84 into contact with hub 37 driving the cassette wind reel; and assuming the recorder is orientated for record operation gravity cam 56 engages arm 55 of three arm lever 53 and again assuming the cassette carries tape for recording so that a part thereof engages cam 59a on pivotable member 59 and moves this out of the path of arm 57 of the lever, the cam rotates the lever to operate switch 61 for the recording mode. For play back the recorder would be orientated so that the gravity cam would not engage arm 55 of the three arm lever 53. The recorder is switched off by further pressure on knob 17 in the B direction which releases the latch 69 so that under the action of spring 67 the control plate is moved outwardly to its initial position. For fast rewind (Figs. 8 and 9, not shown) knob 17 and plate 43 are moved to the left in Fig. 4 whereby spring member 50 secured to the plate pivots plate 51 to move idler 42 into engagement with the drive hub 38 of the cassette rewind reel. At the same time pin 63 moving in slot 62b pivots lever 64 clockwise to energize the drive motor at switch 86. For fast forwarding (Figs. 10 and 11, not shown) the operation is similar except that the plate is moved to the right and the plate 15 is pivoted in the opposite direction by spring 49 to move idler 41 into engagement with the drive hub of the wind reel of the cassette.
Patent GB-1297385-A (GB)
IPC: G08B1/08
Filed: 1969-06-09
Abstract: 1297385 Alarm systems JOSEPH LUCAS (INDUSTRIES) Ltd 21 April 1970 [9 June 1969] 29035/69 Heading G4N A warning circuit for road vehicles for giving an indication to a driver if he attempts to leave the vehicle without removing the ignition key, comprises a buzzer 17 in parallel with a transistor 19, a switch 22 which is opened when the ignition key is removed, and a switch 16 which is closed when the driver's door is open. If switch 22 is open, then the base of transistor 19 is positively biased which causes the transistor to short out the buzzer 17. If however switch 22 is closed, when the ignition key is in the lock, then transistor 19 has a negative bias and is non-conducting thus the buzzer 17 will be switched on when switch 16 is closed. Switches 13 and 14 are actuated, respectively by a passenger door of the car, and manual operation. Courtesy light 12 is switched on by closing any of switches 13, 14 or 16. Diode 15 prevents the switches 13 or 14 from actuating the buzzer 17.
Patent GB-1305464-A (GB)
IPC: F28D1/03
Filed: 1970-10-13
Abstract: 1305464 Radiators TRANTER MFG Inc 13 Oct 1970 48575/70 Heading F4S In a radiator assembly 10 for cooling an oilfilled electrical installation such as a transformer (12, Fig. 3) and comprising a plurality of spaced apart upright plate units 16, each constituted by a pair of stamped sheets 17, 18 welded together at their periphery, each header 20 is formed by telescopingly received cylindrical male and female sleeve-like flanges 31, 29 formed integrally with the stamped sheets 17, 18. The sheets 17, 18 are also formed with embossed portions 23, 24 and a corrugated zone 25, the sheets being seam welded together in face-to-face engagement along longitudinal weld zones 26 to provide, with the peripheral seam weld 21, a strongly braced and rigid construction. One end of each header 20 is closed by a cap 34; the opposite end telescopingly receives a tubular component 35 which communicates with the oil-filled transformer.
Patent GB-1310911-A (GB)
Title: Manufacture of aromatic polyamideimide prepolymers
IPC: C08G73/14
Filed: 1969-04-08
Abstract: 1310911 Polyimide-containing laminates NATIONAL RESEARCH DEVELOPMENT CORP 25 March 1970 [8 April 1969] 17774/69 Addition to 1215481 Heading B5N [Also in Division C3] The invention of Specification 1,215,481 for preparing soluble fusible polyimide prepolymers from an aromatic tetracarboxylic reactant and an N,N<SP>1</SP>-diacyl aromatic diamine in bulk or in a monocarboxylic acid or anhydride and using the products in the manufacture of laminates is modified by replacing all or part of the tetracarboxylic reactant by a similar tricarboxylic reactant.
Patent GB-1312728-A (GB)
Title: Reverse and reduction gear for ships
IPC: F16H3/14
Filed: 1970-11-16
Abstract: 1312728 Reversing gearing YANMAR DIESEL ENGINE CO Ltd 16 Nov 1970 54412/70 Heading F2D A marine reversing gear comprises three parallel intermediate shafts 1, 2, 2<SP>1</SP> arranged in arcuate formation about an output (i.e. propeller) shaft 15, the intermediate shafts 1, 2, 2<SP>1</SP> each having a pinion 5, 6, 6<SP>1</SP> freely journalled thereon, which pinions 5, 6, 6<SP>1</SP> respectively mesh a large gear 16 fast on the output shaft 15 and may each be connected by hydraulically engaged friction disc clutches S1, S2, S3 to gears 3, 4, 4<SP>1</SP> fast one on each of the intermediate shafts 1, 2, 2<SP>1</SP>, the centre gear 3 meshing the adjacent gears 4, 4<SP>1</SP> and being connected via a flexible coupling 17 to an engine crankshaft (not shown). Forward drive is effected by simultaneous engagement of the two clutches S2 S2<SP>1</SP>, forward drive thus being effected from the driving gear 3 via gears 4, 4<SP>1</SP>, clutches S2, S2<SP>1</SP> and gears 6, 61 to the output gear 16 and propeller shaft 15, whilst reverse drive is effected simply by engagement only of the centre clutch S1, reverse drive thus being effected from the driving gear 3, clutch S1 and gear 5 to the output gear and propeller shaft 15.
Patent GB-1327386-A (GB)
Title: Control apparatus for an engine fuel pump
IPC: F02D41/38
Filed: 1970-11-27
Abstract: 1327386 Automatic control of speed C A V Ltd 27 Nov 1970 [10 Dec 1969] 60185/69 Heading G3R To regulate the quantity of fuel injected into an I.C. engine apparatus is provided which comprises a liquid fuel pump 7 and means for producing a first series of pulses whose frequency depends upon engine speed and whose width, measured in terms of degrees of engine rotation, at least in part depends upon a desired speed, means for producing a second series of pulses at the same frequency as the first and whose width, in the same terms, depends upon the engine speed, and means for producing a third series of pulses whose width is equal to the difference between that of the first two and which are used to effect movement of a fuel quantity control member 9. As shown, the first pulses are produced in a pick-up coil 13 which detects a magnetic pattern 12 on the periphery of a wheel 11 driven by the engine. The pattern has the tapered areas shown so that the pulse width depends upon the lateral position of the pick-up 13, and this is adjusted by a lever 17, the lower end of which is manually positioned while the upper end is moved by the control member 9 to provide feedback which determines the "droop" of the system. In a first embodiment, Fig.2 (not shown), each pulse is amplified and its start triggers a monostable multi-vibrator (21) the resultant pulses from which comprise the second series. Although of constant time duration, their width in terms of angle of engine rotation corresponds to engine speed. The engine operates at a speed which ensures that the difference between the first and second series produces pulses whose width is sufficient to cause an electromagnetic or electro-hydraulic actuator 18 to overcome the tension of a spring 10 on the control member. In a second embodiment, Fig.3 (not shown), a second multi-vibrator is connected in parallel with the first, triggered by additional pulses from a fixed pick-up. This overrides the first at idling speeds, but during run-up it is re-set by the trailing edges of the pulses and the system is inoperative. At running speeds control is resumed as in the first embodiment. In a final embodiment, Figs.4, 5 (not shown), the magnet wheel is replaced by a helically toothed wheel, associated with which are a fixed pick-up (31) and a laterally displaceable one (32) as in Fig.1. The first series of pulses is now produced by a bi-stable circuit which is triggered on and off by signals from the first and second pick-ups respectively. The remainder of the system and its operation is similar to the first embodiment.
Patent GB-1341220-A (GB)
Title: Treatment of chromium alloys
Inventor: HART A C
IPC: C23C22/77
Filed: 1972-06-22
Abstract: 1341220 Chromium-containing alloys; colouring INTERNATIONAL NICKEL Ltd 22 June 1972 [22 June 1971] 29229/71 and 17940/72 Heading C74 [Also in Division G1] Chromium-containing alloys which can be coloured by immersion in an aqueous solution of chromic and sulphuric acids contain 12À5 per cent by weight of chromium. Examples are iron based nickel chromium molybdenum alloys:- 37% Ni, 18% Cr, 5% Mo, 1À2% Ti and 1À2% Al; Cobalt based alloys:- 21% Cr, 21% Ni and 13% Mo; and nickel-chromium alloys:- 30% Cr, 1% Ti and the remainder Ni.
Patent GB-1353325-A (GB)
Title: Coils of wire or rod
IPC: B23K11/00
Filed: 1971-01-13
Abstract: 1353325 Welding by pressure; making rod and wire IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 30 March 1972 1680/71 Headings B3R and B3A A method of producing a long length coil of leaded brass wire (or rod) including joining together a plurality of lengths of such wire, comprises making each joint between adjacent lengths by electrical resistance butt welding an end of a length of wire, prior to drawing to final size, to an end of a cylindrical phosphor bronze insert, of similar diameter to the wire, and similarly butt welding an end of the next succeeding length of wire to the free end of the insert, drawing the wire and conjoined inserts through a die to final size, and coiling. The inserts may each be 1 to 2 inches long. Each resistance weld is effected by clamping the inserts and wire in respective jaws of a butt welding machine in or adjacent to a draw bench, the insert and wires being pressed together whilst current is passed therethrough. The long length coil provides stock for the automatic machine manufacture of repetition components and the inserts are such as to avoid the undersirable use of a joint portion to produce a component, being readily detectable (a) visually, the inserts being at least one inch in length and, as opposed to the yellow of the brass, of reddish colour, (b) by observation, e.g. audible, of different machinability, or (c) instrumentally, e.g. using eddy current or photo-electric means.