baber/WOPTO huggingface dataset:
Patent GB-693161-A (GB)
Title: Improvements in and relating to electro-mechanical transducer units
IPC: H04R17/04
Filed: 1947-03-21
Abstract: 693,161. Pick-up mountings. BRUSH DEVELOPMENT CO., and LYNCH, T. E. Feb. 17, 1948 [March 21, 1947], No. 7787/47. Class 40 (ii) [Also in Groups XXXIX and XL(b)] In an electro-mechanical transducer employing a flexing type multiplate crystal element 13, Fig. 1, the' end of the crystal remote from the front drive end is free from rigid engagement with the housing which is fitted with a resilently yielding material 18 to provide a mounting exerting predomiriantly a stiffness force against the flexing of the element at lower frequencies. The stylus holder 15 passes through a rubber grommet 14 in the' case 10 and is connected to the crystal by a yoke 9. In a more practical embodiment, Figs. 2 and 3, the crystal 29 is restrained against cold flow in the filler material by a harness comprising legs 40, 41, and a cross bar 46 in which it is free to pivot. The pivots 33, 34 engage in detents 72, 73 on the base plate and harness respectively. The stylus holder 90 is pushed into a quill 35 attached to the crystal element and is supported in a notch 94 of a stylus guard 60 which is formed on an extension of the harness base. Bearings 82, 83 on the guard prevent damage to the pick up by heavy handling. Suitable resiliently yielding fillers include plasticized polyvinyl resins and rubber-like plastic elastomers, particular reference being made to an elastomer made by copolymerizing vinyl chloride and vinyl acetate and dispersing the resultant resin in a plasticizer such as dibutyl or dioctyl phthalate. The crystal assembly is inserted in a canister 85 (Fig. 5) which is filled with the filler in its liquid state until the upper disc 50 of the base engages a shoulder 86 of the canister. Extensions 55, 56 of the legs 40 provide the electrical connection. The crystal used may be of Rochelle salt or primary ammonium phosphate but the former may be precluded if it cannot withstand the temperature required for polymerization of the elastomer. Prior to assembly the crystal is dipped in divinyl acetylene neoprene to protect it from attack by the mounting material 18. Specification 562,803 is referred to.
Patent GB-1492857-A (GB)
Title: Relief valve damping device
IPC: E02F3/64
Filed: 1975-02-25
Abstract: 1492857 Hydrostatic transmission/control CATERPILLAR TRACTOR CO 25 Feb 1975 [7 March 1974] 7844/75 Heading F2W [Also in Division G3] A dump valve 22 for controlling an hydraulic motor 16 has a balance chamber 37 for a spool 36, which by venting the chamber either in response to pressure or by manual selection, controls fluid release from a conduit 19, there being an accumulator 10 in communication with the balance chamber. The accumulator chamber 58 has inlet and outlet connections provided respectively with a restriction 64 and a check valve 62. As shown conduit 19 connects a pump 17 to a motor 16. The spool 36 is pierced by an orifice 42 to admit pressure fluid to the balance chamber 37. When valve 43 is unseated by excessive pressure, or when control valve 51 is opened the spool moves leftward to allow flow from conduit 19 via radial holes 41 in the spool to a tank 18. By providing a reserve of pressure fluid for the balance chamber. The accumulator prevents pressure pulsations in the system.
Patent GB-1464599-A (GB)
Title: Pseudotrisaccharide antibiotics
IPC: C07H15/224
Filed: 1974-02-21
Abstract: 1464599 Pseudotrisaccharide antibiotics SCHERICO Ltd 21 Feb 1974 [23 Feb 1973] 7920/74 Heading C2C [Also in Division A5] Novel antibiotics 66-40B and 66-40D of the general formula in which, in the case of antibiotic 66-40B, ring A is of the formula and, in the case of antibiotic 66-40D, ring A is of the formula and pharmaceutically acceptable antibiotically active derivatives thereof such as non-toxic acid addition salts, solvates and Schiff base -oxazolidine derivatives are prepared by subjecting a composition comprising one of the said antibiotics in admixture with the other of the said antibiotics and/or one or more other structurally related compounds, e.g. pseudo-di- or -trisaccharides such as garamine and sisomicin, to chromatography on a non-ionic adsorbent, and isolating the antibiotic from a fraction obtained from said chromatographic separation as such or in the form of a pharmaceutically acceptable antibiotically active derivative.
Patent GB-1072203-A (GB)
Title: A method of producing screw elements for screw extruders
IPC: B29C48/03
Filed: 1966-02-23
Abstract: 1,072,203. Making screw extruders. WERNER & PFLEIDERER. Feb. 23, 1966 [March 13, 1965], No. 7987/66. Heading B3A. A screw element of a screw extruder for plastics is cast from a hard abrasion - resistant material, such as "Stellite" (Trade Mark). An axially extending recess 2 is filled with a softer steel 4 and a keyway 1 is machined by slotting or broaching. The part 5 of the bore, the external threads and end faces of the element are finished by grinding. The bore may be polygonal in cross-section or be provided with a plurality of axial slots (Figs. 3 and 4, not shown), in which case the entire bore surface is " Stellite " coated.
Patent GB-953789-A (GB)
Title: Welding of laminar metallic elements
Inventor: THOMAS HUGH
IPC: B23K20/08
Filed: 1962-03-01
Abstract: For use in welding assembled contacting metal laminae a plastic explosive comprising 70 parts powdered pentaerythritol tetranitrate, 30 parts binder containing 4 parts nitrocellulose, 3 parts dibutylphthalate and 23 parts dinitrotoluene oil is employed.
Patent GB-1505738-A (GB)
Title: Tabletting processes
IPC: A61K9/46
Filed: 1975-02-26
Abstract: 1505738 Preparation of effervescent tablets KIRBY PHARMACEUTICALS Ltd 22 Dec 1975 [26 Feb 1975] 8096/75 Headings A5B and A5E A water soluble chemical composition in an effervescent tablet form is prepared by directly pressing into tablet form a powder prepared without wetting comprising a chemical compound, an alkali metal e.g. sodium or potassium bicarbonate, an alkali metal e.g. sodium or potassium carbonate and a solid, water soluble aliphatic carboxylic acid e.g. citric, tartaric or adipic acid or an acid salt thereof. The chemical compound may be a sterilising or bactericidal chlorine-containing compound such as sodium dichloro - s - triazine trione and dichlorodimethyl hydantoin; ascorbic acid, paracetamol, codeine, acetysalicylic acid or gibberellic acid. The powder may also comprise a lubricant such as magnesium stearate or boric acid.
Patent GB-743725-A (GB)
Title: Improvements in roller skates
IPC: A63C17/14
Filed: 1953-03-24
Abstract: 743,725. Roller skates. WHALE, L. H. June 24, 1954 [March 24, 1953], No. 8123/53. Class 132(1) A lightweight roller skate comprises a forward roller assembly secured to a bendable sole plate so as to be positioned beneath the ball of the foot, one or more reinforcing members separate. from but secured to the underside of the sole plate in the vicinity of the forward roller assembly and extending forwardly thereof and braking means carried on the forward end or ends of the reinforcing members. A lightweight roller skate is such that size 8 weighs not more than 2 to 2“ lb. The sole plate 0 is secured, e.g. by bolts or rivets 11, to a lightweight boot 12 with a flexible sole 13 and is carried on two roller assemblies 14, 15. A lightweight channel metal reinforcing member 16, secured to the under surface and extending the whole length of the sole plate, comprises a base 17 and flanges 18. Preferably the widths of the base 17 and flanges 18 are respectively approximately one-third and one-quarter of the width of the widest part of the sole plate. Each roller assembly comprises a bracket 19 and an axle carrying member 20 resiliently secured together. Two rollers. 23 are mounted on each axle 22 and the axle mounting is arranged so that the axles can swivel slightly. Brackets 19 are secured between flanges 18 by rivets 25, 26 extending through member 16 and sole plate 10. The two roller assemblies are connected by a bracing stay 24. A further rivet 29 secures the forward ends of sole plate 10 and base part 17 together. A rubber brake block 27 fits into the forward end of the reinforcing member and is secured by a nut and bolt 28. The sole plate and reinforcing member may be made of aluminium alloy.
Patent GB-1386009-A (GB)
Title: Scored adhesive laminate
IPC: C09J7/20
Filed: 1972-02-22
Abstract: 1386009 Laminated adhesive labels MORGAN ADHESIVES CO 22 Feb 1972 8191/72 Heading B5N [Also in Division B8] A label, tape or sticker comprises, in order, a face sheet, an adhesive layer and a removable fibrous layer, e.g. paper, in which continuous, reduced thickness, scored or weakened potential tear lines have been formed, the backing layer having been stabilized at about 50% relative humidity and being brittle at the tear lines due to compaction of the fibres. In a preferred embodiment, the backing layer is first coated with a release material, dried, and exposed to moist air to stabilize it. The score lines are then formed by passing the layer between rollers, one of which is ribbed so as to compress the layer to -¢ of its original thickness along the desired lines so that a tear may be formed on bending. Re-expansion of the fibres is prevented by the water content of the layer.
Patent GB-401370-A (GB)
Title: Sluice gate for controlling the flow of liquids
IPC: E02B7/40
Filed: 1932-11-23
Abstract: 401,370. Sluice gates or valves. HALL, H. W. B., Mill House, Witham, Essex. Nov. 23, 1932, No. 8287. [Class 68 (ii).] A sluice gate is mounted on pivoted arms arranged so that the pressure of the water, when it rises excessively, lifts [the gate and opens the waterway. Fig. 1 shows a gate mounted on arms r pivoted on an axis a, and movable in an open channel. It is vertical until the water rises to a certain critical head, when the water pressure causes it to turn about the axis a, to lift, and to relieve the pressure. A small gate of this form may be fitted with a handle to facilitate its movement. Fig. 2 shows a modification comprising a vertical gate on parallel arms r<1>, r<2>; the gate may be inclined from bottom to top upstream, it may be mounted on unequal arms not always parallel, or on numerous arms. The movement of a gate of this form may be assisted by a winch or other gearing. Fig. 6 shows a gate set in a housing h and mounted on an axis a to the outer end of which is loosely fitted an arm n with an adjustable weight m. This arm oscillates between a dead stop j<2> and a spring stop j<1> on a semicircular part o rigidly attached to the axis a, and is caught by catches t<1>, t<2> pivotally arranged on stops s', s<2> adjustable in a slot h<1>. To close the gate, the catch t<2> is tripped, and the gate falls until it is caught by the parts s<1>, s<2>. When the pressure has risen sufficiently, the catch t<1> is tripped, and the valve rises until caught by the catch s<2>, t<2>. For certain purposes only one catch need be used. Fig. 7 shows in plan a double gate for maintaining a constant level. Two gateways y are occupied by gates u on arms r on pivots a. They are united by a beam x, to which is attached a weight m suspended in a well w, which is filled over a weir z, and has a comparatively small outlet v. A variation in the level in the well w causes a variation in the effective weight of the valves a, and stabilizes the level.
Patent GB-614551-A (GB)
Title: Improvements in or relating to automatic brake control mechanism for vehicles
IPC: B60T10/02
Filed: 1946-03-18
Abstract: 614,551. Controlling motor vehicles. FORD MOTOR CO., Ltd. March 18, 1946, No. 8292. Convention date, April 19, 1945. [Class 79 (v)] [Also in Group XXXIV] In a vehicle having hydraulic transmission and hydraulic brakes, on actuation of the brake pedal wheel brakes and a transmission brake are applied, but on release of the brake pedal the transmission brake is maintained on until subsequent actuation of the accelerator pedal. The arrangement is particularly useful with hydraulic transmission to avoid the vehicle creeping when the engine is running at idling speed in neutral. Fig. 1 shows a transmission system comprising a fly-wheel 15, clutch 27, Fottinger-type hydraulic coupling 11, and gearbox 12 embodying a transmission brake, all as described in Specification 602,020, [Group XXIX]. The transmission brake consists of a brake drum 49 and hydraulically-operated brake band 51. As shown in Fig. 2, depression of the brake pedal 60 transmits hydraulic pressure from the master cylinder 61 to the duct 62 and wheel brakes, and to the duct 64, the chamber 67 of the pressure-maintaining device 63, through the spring-loaded valve 74 to the chamber 68 and thence to duct 82 leading to the transmission brake. On release of the brake pedal, pressure in the ducts 62 and 64 drops to a predetermined minimum as normal and releases the wheel brakes, but pressure in the chamber 68 and in the transmission brake system is allowed to drop only slightly by the annular valve 70 which is backed by spring 73, adjustable by screwed collar 78, and the transmission brake is held on. On depression of the accelerator pedal 65, the shaft 81 and face cam 80 are rotated whereby the plunger 77 is axially displaced to open the valve 74 and release the pressure in the transmission brake system.
Patent GB-267720-A (GB)
Title: Improvements in or relating to the discharge valve mechanism of flushing cisterns
IPC: E03D1/33
Filed: 1926-03-27
Abstract: 267,720. Christie, J. B. March 27, 1926. Valve-discharge water-waste preventers.-Relates to apparatus of the kind wherein a member associated with a float is adapted to establish an operative connection between a discharge operating member and the discharge valve when the liquid has reached a predetermined level, which connection is broken on discharge of water and can only be established again when the cistern has been refilled; and consists in actuating the discharge valve by an axially rotatable rod to which is rigidly attached a hanger whereon or wherein a float supporting lever or rod is adapted to pivot or slide, this lever or rod being associated with a head adapted to co-operate with a nose on the valve operating member. In the form shown in Fig. 1, the discharge valve e, which may be similar to that described in Specification 256,062, is lifted to discharge the water from the cistern by a member e<1> suspended at the end of a cranked rod d which is turned for this purpose about its pivot in the arms of a bracket b secured to the side of the cistern c by the engagement of a press button a mounted in the bracket b with the head i<1> of a plunger i sliding in a hanger f fixed to the rod d, which plunger is raised and lowered by an arm g pivoted to the hanger and carrying a float h operated by the water in the cistern. In a somewhat similar form, shown in Fig. 5, the plunger i is replaced by an hooked extension on the arm g carrying the float. In a further modification, the float g may be attached directly to the lower end of the plunger i which may be extended downwardly if necessary, and the plunger may be longitudinally adjustable to adjust the setting of the float by a turnbuckle.
Patent GB-897478-A (GB)
Title: Ball-point pen
IPC: D01H5/26
Filed: 1959-03-12
Abstract: 897,478. Reservoir pens. DOLEO S.A. March 12, 1959 [March 20, 1958], No. 8561/59. Class 146(3) In a ball-point pen wherein the writing ball 3 is in a housing I provided with a top lateral seating 5 which extends above the equatorial line 6 of the ball, and with a base seating which is separated from the seating 5 by an annular ink channel 9, the base seating is divided into two portions 7, 8 by an annular ink groove 10. As shown, the base seating has two intersecting ink channels 11 cut therethrough, whereby ink from a supply duct 2 can flow to the channels 9 and 10. The seating surfaces of the portions 7, 8 may be partly of spherical and partly of frusto-conical shape. The base seating may be divided by annular grooves into several portions.
Patent GB-1163460-A (GB)
Title: Image Converter Tube having an Improved Output Assembly
IPC: H01J31/50
Filed: 1967-02-22
Abstract: 1,163,460. Image converter tubes. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 22 Feb., 1967 [11 March, 1966], No. 8562/67. Heading HID. An image converter tube 5 comprises an envelope containing an electron emissive electrode 4, accelerating and focusing electrodes 1, 2 and a movable target screen 3 urged against the envelope by a spring 12 between one electrode and the screen. The annular electrodes 1, 2 are attached together by ceramic rods 9 and secured in the tube by a ring 13; electrode 4 is a photo-cathode. The screen 3 comprises a circular glass plate covered with an activated ZnS phosphor coating and an A1 reflective layer. It is mounted in a tubular member 10 slidable in electrode 2 and urged against the end face 7 of the tube by the spring 12, a stop-plate 21b retains member 10 before assembly. A flange 11 of member 10 between the screen and face 7 acts as a dust shield. In another embodiment, Figs. 2, 3 (not shown), a frusto-conical spring is compressed between diaphragm plates (18), (20) in the anode 2 preventing unwanted radiation, one of the plates may be mesh covered. The connections 15, 16 include respectively a leaf-spring (32) and a coil-spring (22) which can be considerably extended. The photo-cathode comprises a dished screen with a peripheral support sealing the space above the screen. A layer 401 of photoemissive material is vapour deposited on this screen from tubes (23) containing Sb, Na, K and Cs mounted behind electrode 1. A Ba getter wire (31) is mounted in the same space. A releasable shutter as described in Specification 1,060,381 may protect the target screen during deposition.
Patent GB-397408-A (GB)
Title: Improvements in the method of manufacture of basic alum
IPC: C01F7/765
Filed: 1933-03-21
Abstract: <PICT:0397408/III/1> A basic alum, comprising an alkali and/or ammonium sulphate and basic aluminium sulphate, is precipitated from a normal alum solution by rapidly raising its temperature by the injection of high-pressure steam to a temperature above 140 DEG  C. and preferably to 185-200 DEG  C.  The reaction may be carried out continuously in a steel container A provided with an intermediate lining B of lead and an inner lining C of acid-proof tiles.  Alum solution is supplied at D and the mixture of basic alum and mother liquor withdrawn at E. Steam is supplied from a header H to a number of ring jets H<5> and serves to heat the solution and maintain it at the necessary temperature.  A body of air under pressure is preferably maintained above the level of the alum solution.  The yield of basic alum may be increased by having present additional alkali sulphate.
Patent GB-1036817-A (GB)
Title: Sensing device
Inventor: BANKS CECIL HENRY
IPC: G01F23/296
Filed: 1964-02-29
Abstract: 1,036,817. Selective signalling. WITTON ELECTRONICS Ltd. Feb. 22, 1965 [Feb. 29, 1964], No. 8603/64. Heading G4H. The level of granular material in a hopper is detected by probes at different levels, the probes forming parts of electrically-maintained vibrating-reeds in housings outside the hopper. When the level of material rises above a probe, the associated reed is prevented from oscillating and a signal is produced to operate a corresponding indicator e.g. a lamp.
Patent GB-569728-A (GB)
Title: Improvements in or relating to blinds
IPC: E06B9/262
Filed: 1943-06-01
Abstract: 569,728. Window blinds. ACCORDO BLINDS, Ltd., and HINCHCLIFFE, E. D. June 1, 1943, No. 8728. [Class 20 (iii)] A pleated window blind is made of light strips of aluminium or other light metal alloy 2 jointed at the edges by fabric or other pliable material 3 united to the strips by stitching or stapling. The blind is guided by fixed cords 8 passing through apertures near the sides of the strips and is actuated by two pairs of cords 6 and 6a attached respectively to weighted top and bottom bars and passing over guide pulleys in the pelmet box.
Patent GB-273220-A (GB)
Title: Improvements in lever locks or padlocks
IPC: E05B67/22
Filed: 1927-03-30
Abstract: 273,220. Mitchell, H. March 30, 1927. Lock-mechanism, lever-type; padlocks.-In a lock or padlock having a sliding bolt or shackle c with a stump g carrying a pivoted lever h, which is slotted to receive a casing stump d, the lever h is provided with an extension m which, in the locked position of the lever, abuts against a shoulder n on the casing. The lever h may be provided with a slot bearing on the stump f of the bolt c. The outer bar o of the bolt has a lug p adapted to engage in a notch q in the casing. Additional slotted levers h<1>, Fig. 5, together with guard plates u may be pivoted on the stump d. These levers have locking notches s and hooks t to engage the stump f.
Patent GB-1521323-A (GB)
Title: Agricultural tractors and other vehicles
IPC: B62D49/06
Filed: 1975-06-20
Abstract: 1521323 Tractors C VAN DER LELY NV 20 June 1975 [25 June 1974] 08865/78 Divided out of 1521322 Heading B7H The subject-matter of this Specification is substantially the same as that described in the parent Specification, but the claims are concerned with an agricultural tractor or other vehicle having three driven ground wheels located on each side thereof, two of the wheels having pneumatic tyres and the third having ground engaging means of a different form.
Patent GB-160668-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/06
Filed: 1920-03-26
Abstract: 160,668. Napier & Son, Ltd., D., and Tryon, H. C. March 26, 1920. Pistons.-An internal-combustion engine piston is recessed to receive a crescent-shaped piece E, pressed bv radial springs F against that side of the cylinder which takes the thrust on the compression stroke. The piston skirt is cut away from a point below the packing- rings to the end of the skirt, so as to leave projecting strips B, at opposite sides of the gudgeon pin, which are a sliding fit in the cylinder. The piece E is preferably arranged between the packing-rings and the gudgeon-pin bosses C, but a second piece E may be arranged between the gudgeon-pin bosses and the end of the skirt. The springs F are contained in casings G, formed with retaining-collars, and inserted in holes in the thickened bottom of the recess for the piece E. The latter carries at its middle a casing H which telescopes into the corresponding casing G, while the side springs F engage pins J.
Patent GB-453885-A (GB)
Title: Improvements in coil winding machines
IPC: B65H49/32
Filed: 1935-03-21
Abstract: 453,885. Coil-winding machines. ADAMS, J. W., 25, Candover Close, Harmondsworth, Middlesex. March 21, 1935. No. 8897. [Class 120 (ii)] A stand for the supply reels of a coil-winding machine for electrical apparatus, in which one or a number of windings are made on a former or sleeve, comprises a plate 2 carried on fixed pillars 1 and carrying a turntable 5, at the corners of which are mounted pillars 6, 7, 8, 9 supporting the supply reels 10 and at opposite sides of which are mounted frames 11, 13, 11<1>, 131 adapted to receive the formers. The stand is arranged adjacent to the winding-machine so that while a former is being wound with wire from one, several, or all of the reels on the pillars 6, 7, facing the machine, the wires from the pillars 8, 9 at the rear of the machine may be connected to a former carried in the frames 11<1>, 13<1>. When winding is completed the wound former is removed from the winding-machine to the frames 11, 13, and the platform is rotated to bring the prepared former to the winding-position and to permit removal of the wound former and preparation of another. Specification 426,263 is referred to.