baber/WOPTO huggingface dataset:
Patent GB-524654-A (GB)
Title: Improved apparatus for the cleaning of tea
IPC: A23F3/00
Filed: 1939-02-02
Abstract: 524,654. Pneumatic separating. DAVIDSON & CO., Ltd., and MAGUIRE, E. D. Feb. 2, 1939, No. 3570. [Class 117] Apparatus for cleaning tea comprises a vertical air duct 6 and expansion chamber 20, a fan 13 for drawing air through the duct and expansion chamber, a hopper 1 and means for projecting the tea substantially horizontally into the air stream adjacent the outlet of the duct, a baffle 10 in the expansion interposed in the path of the air stream for directing tea to a receptacle 11 and the air and dust particles to the fan 13, a discharge chamber 15 for collecting dust particles, and a receptacle 8 at the bottom of the air duct for the heavier particles which gravitate downwardly against the rising air stream. The velocity of the air stream may be regulated by a damper 14, or by making one side 7 of the duct 6 adjustable, a seal 17 being provided to make air-tight contact with the top of the receptacle 11. The hopper has an adjustable feed regulating plate 3, and the tea is delivered by a serrated roller 2 in conjunction with a spreader plate 4 and shoot 5. The cleaned tea is delivered from the receptacle 11 by a valve 12 and may be discharged directly into a packing chest. A magnetic device for removing magnetic particles may be incorporated in the machine near the shoot 5.
Patent GB-535282-A (GB)
Title: Improvements in or relating to driving gear for automatic lathes
IPC: B23Q5/04
Filed: 1940-02-27
Abstract: 535,282. Turning. B.S.A. TOOLS, Ltd., and OGILVIE, W. Feb. 27, 1940, No. 3602. [Class 83 (iii)] An automatic lathe has a two-part driving shaft 2, 2a which may be coupled by a friction clutch comprising an inner member 15 mounted on the part 2 and engageable with an outer member 16 mounted on the part 2a, the part 2 also carrying a loose sleeve 7 carrying another outer clutch part 14, a chain sprocket 10 driving one part of a reversing clutch on the work spindle 13 and a gear wheel 8 driving a lay shaft 3 connected by sprocket gearing 20 to the other part of the work spindle clutch. The mainshaft part 2a and the lay shaft are connected by change gears 22, 23 and the inner clutch member is actuated by a lever 21 from an auxiliary cam shaft 26. When the clutch 15 is moved to the right the lay shaft is driven through the gears 22, 23, and the loose sleeve 7 is driven through the gears 9, 8. When the clutch is moved to the left the two parts of the driving shaft are disengaged and the sleeve 7 driven from the shaft 2, the lay shaft being driven by the gears 8, 9. The sprockets 10. 20 thus each have two speeds, giving a two-speed spindle drive for either direction of rotation.
Patent GB-1104612-A (GB)
Title: Tool for setting and sharpening saw teeth
IPC: B23D63/10
Filed: 1966-01-27
Abstract: 1,104,612. Filing saw-teeth. O.C. EDWARDS. 26 Jan., 1967 [27 Jan., 1966], No. 3630/66. Heading B3L. [Also in Division B5] A tool for setting and sharpening sawteeth comprises a tooth engaging slot 12 in a head piece 11 formed with a handle 10, and an abrading member 18 associated with the head piece and adapted for operative displacement relative to and adjacent the slot to sharpen a tooth engaged in the slot. The abrading member consists of an arcuate or circular file secured to one end of a lever 14 formed with a trigger 15 whereby the file is movable against a spring 19 to engage a tooth of the saw in a slot which can be used for setting the tooth. Adjustable stop means may be provided for contacting the blade of the saw to limit the setting of the teeth.
Patent GB-485032-A (GB)
Title: Improvements in or relating to anti-gas protection chambers and to air-conditioning means therefor
IPC: E04H9/10
Filed: 1937-02-09
Abstract: 485,032. Ventilating anti-poison-gas protection chambers. MOIR, M. E. Feb. 9, 1937, No. 3784. [Classes 20 (i) and 137] A collapsable and portable chamber, which is not gas tight, comprises four walls A to A3 and a top B connected along their adjacent edges and having at least one wall formed of woven material to some extent permeable to air, is supplied with air purified from poisonous constituents in a filter J, and delivered to the chamber at a pressure above that of the gas-contaminated atmosphere outside the chamber. The bottom edge of each side wall is formed with a tubular hem C filled with sand the weight of which keeps the edge in contact with the ground or floor. Cords D may be used to suspend the chamber from a permanent structure such as the walls of a room. An ante-chamber is arranged outside one wall A<3> by extensions to the side walls, and top of the main chamber, and an additional wall E<1>, doors F and E<2> being provided in the main and ante-chamber respectively. An air pump such as that supplied with a vacuum cleaner may be used to supply air to, or draw air through the filter J and into the chamber through an inlet G. A hand pump may alternatively be employed. One wall or the roof may be made of wood or other non- porous substance and conveniently the wall A3 in which is the doorway F.
Patent GB-534447-A (GB)
Title: Improvements in work holding or chucking mechanism
IPC: B23B31/171
Filed: 1940-02-29
Abstract: 534,447. Drilling ; screwing; turret workholders. FAIRWEATHER H. G. C. (National Acme Co.). Feb. 29, 1940. No. 3787. [Class 83 (iii)] In a work-holder for drilling and screwing machines adapted for holding articles such as pipe sockets, means are provided for gripping the work and indexing it in two positions 180 degrees apart so that both ends may be operated upon in sequence by the tool. The work is gripped by jaws 1 moved radially in a body 8 by a rotary cam plate 6. For small work the jaws are clamped by a wedge and screw 3 in a holder 2 mounted in a jaw block 5, for intermediate sized work the jaws are mounted in spacers 16 in the block 5, and for large work the jaws are clamped directly by a wedge 3<SP>1</SP> in the block. The blocks are guided by ribs 10 in grooves in the side plates 12 which are attached to the body 8, and members 13, attached by screws 13' to the side plates, carry felt wipers 14 engaging the jaw blocks 5 to exclude cuttings &c. from the cam surfaces. Ejectors 15 attached to the members 13 centralize the work and prevent it from adhering to the jaws when the holder is opened. The cam plate is rotated by a hydraulic plunger 17 operating in a cylinder 18 provided with packing 20 and end covers 21. A pin 19 engages a groove in the plunger to prevent its rotation. The body 8 has trunnions 23<SP>1</SP> bushed at 23 to rotate in bearings 24, 25 in the base of the machine and is indexed by a gear 27 on one trunnion. This gear engages a pinion 32, Fig. 3, driven from a hydraulic motor 29 through gearing 31. An indexing plunger 44 coacts with notches 39 in a disc 38 attached to the trunnion and is moved into engaging position by a spring 48 and is withdrawn by a lever 43 actuated by a hydraulic piston 42. When oil is admitted to cylinder 41 the plunger is removed from the disc and after the piston 42 has uncovered a port 46<SP>1</SP>, oil is allowed to pass from the motor 29 by pipe 46 to an exhaust pipe 47, thereby starting the motor to rotate the gear 27. The plunger 44 rides on the periphery of the disc 38 which recedes towards the notches 39 so that the piston 42 is gradually retracted to reduce the motor speed as the index position is approached, the rotation being finally stopped when the plunger drops into the notch. Pressure is cut off from the cylinder 41 when the plunger is clear of the notch in the disc, and the supply to this cylinder may be controlled by the tool head when it reaches the end of its retractive stroke, or by another part of the machine such as a cam &c. or by hand.
Patent GB-510793-A (GB)
Title: Improvements in or relating to the production of metallic coatings or layers by the vaporisation of alloys in a high vacuum
IPC: C23C14/32
Filed: 1938-02-07
Abstract: 510,793. Coating with metals. SIEMENS & HALSKE AKT.-GES. Feb. 7, 1938, No. 3804. Convention date, Feb. 6, 1937. [Class 82(ii)] [Also in Group XL] An article is coated with an alloy by exposure in a highly evacuated vessel to vapour produced by passage of high frequency sparks between two or more electrodes formed of the required alloy. The electrodes may be water-cooled. Resistances may be formed by deposition of manganin on carriers of amber, lacquer, quartz, glass or ceramic materials.
Patent GB-111781-A (GB)
Title: Improvements in or relating to Head-gear for Protecting the Ears from Cold.
Inventor: BAILY THEODORE LIVINGSTONE
IPC: A61F11/06
Filed: 1917-03-15
Abstract: 111,781. Baily, T. L., and Hawksley, T. M. March 15, 1917. Accessories.-Ear coverings are formed as packets each consisting of a double thickness of material, preferably knitted, closed all round the edges, and having a slit D to receive the ear. The coverings may be of any shape. They may be separate and independent, but are preferably connected by a head band E.
Patent GB-709536-A (GB)
Title: Improvements in slip rings for dynamo-electric machines
IPC: H01R39/08
Filed: 1952-02-13
Abstract: 709,536. Collecting gear for dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 13, 1952 [Feb. 16, 1951], No. 3834/52. Class 35 Slip-rings A, B comprise copper strips so wound as to form a helix of four turns upon a drum E from which they are insulated by an insulator F. The turns are held by rivets C and spaced from one another by insulating spacers D. Small ventilating vanes G are fixed laterally on to the strip.
Patent GB-1244101-A (GB)
Title: Metallising a substrate
Inventor: STERMAN MELVIN DAVID
IPC: H01F10/06
Filed: 1969-01-23
Abstract: 1,244,101. Magnetic structures. EASTMAN KODAK CO. 23 Jan., 1969 [25 Jan., 1968], No. 3882/69. Heading H1H. [Also in Division C7] A substrate is coated with a ferromagnetic layer as follows: the substrate is coated with a noble metal layer, the noble metal being formed by reduction of a noble metal salt by Cul, and the so-coated substrate is contacted with a solution of a compound of a ferromagnetic element and a reducing agent therefor at a temperature whereat the noble metal catalyses the action of said reducing agent. The substrate may be polyethylene terephthalate, cellulose triacetate, other plastics, or paper, and may be coated with an adhesive polymer layer. The noble metal is Pt, Pd, or Au, and is applied either by reacting CuI and a salt thereof in solution in the presence of a binder and the substrate, or by applying CuI/binder to the substrate and immersing the CuI-coated substrate in noble metal salt solution. The ferromagnetic element is Fe, Co, or Ni, and is coated on to the noble metal layer from a conventional electroless hypophosphite bath.
Patent GB-1511986-A (GB)
Title: Hopper units for mounting in refuse chutes
IPC: E04F17/12
Filed: 1977-01-31
Abstract: 1511986 Movable hoppers TRUE FLUE Ltd 31 Jan 1977 03903/77 Heading B8S A hopper unit, which is mounted in an opening in the wall of a hollow refuse shoot, comprises a hollow casing element 10 defining a passage having an inlet end 2 and a discharge end, an open-topped hopper 12 being pivotally mounted at 1 for movement between the position shown in which its front wall 13 closes the inlet end 2 of the passage and a position in which its front wall 13 is displaced outwardly of the casing element 10 (Fig. 2, not shown) to permit refuse to be placed therein, after which the hopper 12 is pivoted back to its position shown in Fig. 1 so that the refuse therein can fall therefrom into the refuse shoot, and in so doing, the refuse pivots a flap 18 outwardly. The flap 18 is pivotally mounted at 20 on the hopper 12 and during movement of the hopper 12 to its open position the flap 18 moves under a stationary cowl 17 which prevents any outward pivoting of the flap 18 during such hopper movement.
Patent GB-1256342-A (GB)
Title: Improvements in and relating to fluid valves
IPC: F16K3/06
Filed: 1970-01-27
Abstract: 1,256,342. Valves. I-T-E IMPERIAL CORP. 27 Jan., 1970 [27 Jan., 1969], No. 3955/70. Heading F2V. Selectively connecting a flexible supply line 45 to either one of two outlet lines 33, 34 whilst inhibiting leakage between the lines, is effected by means of a rectangular valve member 36 which, by means of a leaf spring 42, is biased into sealing engagement with a seat member 30, the supply line 45 having an extension 43 which extends through the valve member 36 and which, by virtue of being disposed within a recess 65 in the valve housing 12, is capable of moving with the valve member. Displacement of the valve member across the seat 30 and between its two delivery positions, is effected by means of two diaphragm actuators 17, 62 and 18, 62<SP>1</SP>. Alternatively, the valve member may be spring- biased to one delivery position and movable to the other delivery position by either a diaphragm actuator or a solenoid (Figs. 2 and 3, not shown). In a still further modification, which is disclosed in conjunction with a specific application (Fig. 4, not shown), the valve member is spring- biased to the first delivery position and movable to the second delivery position by a manually operable pivoted handle (104). Furthermore, the valve housing is attached to a bottle and the pivoted handle carries a pipette (94), the arrangement being such that with the valve member in the first delivery position, the supply line (43) is connected to the bottle and with the valve member in the second position, the supply line is connected to the pipette. The above embodiment is said to be useful in the biomedical field for delivering desired quantities of liquid either to the bottle or to the pipette.
Patent GB-547573-A (GB)
Title: Improvements in dust collecting apparatus for mould boxes
IPC: B22D45/00
Filed: 1941-03-27
Abstract: 547,573. Cleaning moulds. STURTEVANT ENGINEERING CO., Ltd., and DAVIES, A. B. March 27, 1941, No. 4131. [Class 83 (i)] Loose sand &c. is removed from moulds by passing a current of air through them. A hood 4 connected by a flexible joint 6 to a suction pipe 5 may be lowered by a hydraulic jack 7 until an opening in its horizontal lower face co-operates with openings in an aeroengine or other mould 1 to which it is clamped by dowels 11. Air is then drawn through the passages of the mould to extract loose sand, the hood is unclamped and raised and the clean mould replaced by an untreated one by means of a conveyer. In a modification the hood swings about a horizontal hinge by means of a crane device.
Patent GB-1201664-A (GB)
Title: A method of detecting and/or measuring the displacement or deformation of an object
IPC: G03H1/00
Filed: 1968-01-26
Abstract: 1,201,664. 664. Holography. COMPAGNIE GENERALE D'ELECTRICITE. Jan.26, 1968 [Jan.26, 1967], No.4183/68. Heading G2J. Deformation or movement of an object, such as a dam, with time, is determined by making a hologram, from a fixed point, of the object and a fixed reference mark, and at a later time making a second hologram of the object and the fixed reference mark and comparing the two holograms. The fixed reference mark allows account to be taken of variations in the frequency of the laser used for making and reconstructing the holograms or variations due to distortion of the gelatine in the holograms. The reconstruction may be on a different scale from that of the original and observations made by a lens system such as a microscope or telescope. For rapid evaluation of approximate movement, a series of holograms may be made initially of the object and the fixed reference mark with the latter in a series of adjacent positions e.g. separated by one millimetre steps, and the hologram made at the later time is compared with each in turn of the initial holograms to determine to which one it approximates.
Patent GB-623440-A (GB)
Title: Improvements in infants' exercise toy
IPC: A63H33/00
Filed: 1947-02-13
Abstract: 623,440. Infant's exercise toy. RATH H. E. Feb. 13, 1947, No. 4195. Convention date, Feb. 20, 1946. Drawings to Specification. [Classes 132 (i) and 132 (iii)] An exercise toy adapted for attachment to an infant's crib, play-pen or the like, comprises a rod, means attached to each end of the rod for securing the rod in a substantially horizontal position between the sides of the crib, &c., and one or more rotatable members adapted to rotate freely on the rod. The whole toy may be adapted to swing on its supports. The rotatable member may be a hollow spheroid and may be provided with a portion of increased mass on its wall to increase its momentum, and it may be striped or coloured and may contain sound producing elements. Teething rings and coloured balls may be suspended from the rod.
Patent GB-572323-A (GB)
Title: An improved manufacture of substantially pure aromatic hydrocarbons
Filed: 1941-03-27
Abstract: <PICT:0572323/IV/1> Aromatic hydrocarbons are separated in pure condition from hydrocarbon oils containing them by the following process: (a) the fraction of the oil having a boiling range approximating to the boiling point of the aromatic hydrocarbon is mixed with from 200-300 per cent by volume of liquid sulphur dioxide or other solvent having preferential solvent action for aromatic hydrocarbons; (b) the mixture is washed in countercurrent at a temperature of about -40 DEG  F. with from 50-150 per cent by volume of a boiling range well outside the boiling range of the aromatic hydrocarbon; (c) the sulphur dioxide or other solvent and paraffin are removed from the aromatic hydrocarbon, which is finally fractionated.  When considerable olefines are present, these are removed by means of sulphuric acid before mixing with the solvent or before the final fractionation.  The process is described, with reference to the Figure, using a fraction boiling between 200 DEG and 250 DEG  F. for the production of pure toluene.  This hydrocarbon fraction may be derived from products of distillation, cracking, reforming, hydrogenation or destructive hydrogenation of coal, tar, mineral oil, petroleum, shale, lignite, bitumen, pitch, brown coal, reduction products of carbonmonoxide or dioxide with hydrogen, or polymerization, solvent extraction or alkylation products of gaseous or liquid hydrocarbons.  Synthetic mixtures containing aromatic hydrocarbons, paraffins, olefines and naphthenes may also be used. The oil from tank 1 is distilled in still 5 to remove hydrocarbons boiling below 200 DEG  F. and a fraction boiling between 200 DEG  and 250 DEG  F. is obtained by distilling the remaining oil in still 8. This fraction collected in tank 10 is mixed with liquid sulphur dioxide in vessel 15, introduced through line 16.  The mixture is washed with a countercurrent stream of highly paraffinic hydrocarbon boiling between 350 DEG  and 400 DEG  F. supplied through line 23, which largely replaces the paraffins boiling at the same temperature as the aromatic hydrocarbon.  The raffinate is passed to a still 25 and after removal of sulphur dioxide and the higher paraffin is recycled with fresh hydrocarbon to the tower 15.  The washed aromatic hydrocarbon passes to a still 30 and after removal of sulphur dioxide is distilled into a receiver 34 in which olefines are removed by treatment with sulphuric acid.  The resulting toluene is neutralized, washed and finally distilled in still 37. When large quantities of olefines are present, they are preferably removed before the hydrocarbon oil is mixed with liquid sulphur dioxide.  The aromatic hydrocarbons may also be washed with a paraffinic solvent which boils considerably below the boiling point of the aromatic hydrocarbon.
Patent GB-257496-A (GB)
Title: Improved bung-hole stoppering for casks and barrels
IPC: B65D41/08
Filed: 1926-02-15
Abstract: 257,496. Cornet, J. F. Feb. 15, 1926. Bungs.- A bunghole stopper for casks and barrels comprises an externally threaded bung - hole rim 1 having an annular groove 7 on its outer edge, an internally screw-threaded cap 3 having a raised inner portion 4, and a thin sheet metal seal 5 which is compressed between the cap and the outer edge of the rim. The groove 7 is V-shaped in cross-section, the outer face being vertical, and the seal 5 is convex with a .beaded edge which is forced into the groove 7. The seal is distorted to the shape shown on tightening-up the cap, and can only be removed by the use of a suitable tool. Illicit tampering with the seal is consequently easily detected.
Patent GB-220010-A (GB)
Title: Improvements in or relating to presses
IPC: C14B5/00
Filed: 1923-02-14
Abstract: 220,010. British United Shoe Machinery Co., Ltd., Gouldbourn, J., and Keall, F. B. Feb. 14, 1923. Cutting-out apparatus.-Relates to presses of the type described in Specification 22023/05, and consists in improvements in details. A radial beam 60 is carried by a post held in bearings 2, 3 of the form described in Specification 215,460. The beam is of aluminium or aluminium alloy, its pressure face being covered with a thin hard steel plate secured to the aluminium body. A stiffener for the beam comprises a rectangular tubular steel strut 62 socketed at its lower end against a hard disc 64 immediately behind the starting handle 63 and at the top end in the post 4 above the bearing 2.
Patent GB-165895-A (GB)
Title: Improvements in apparatus for catching or intercepting dust and mud carried or movedby self-propelled vehicle tyres or wheels
IPC: B60S1/68
Filed: 1920-02-13
Abstract: 165,895. Williams, M. L. Feb. 13, 1920. Dust, preventing rising and spreading of.-In apparatus for catching or intercepting dust and mud, or nails, &c., carried round by the tyres of self-propelled vehicles, wherein a rotary brush bearing upon the tyre is contained within a box 2 and pressed against the tyre by a spring, the brush is provided at the centre with a rubber or rubber-shod collar 7 to engage frictionally with the tyre, bristles 1 or the like being fitted at each side of the collar. At the bottom, the box is furnished with a weighted trunk or conduit 3 which may be of leather &c., a plate 4x, perforated at 5<x>, serving as a scraper for the brush. The brush spindle 9 works in horizontal slots in the box sides, and is pressed forwards by springs mounted upon forked guided rods engaging with the spindle ends. Covers are provided for the slots and for the guided rods and springs. A pad 18 clamped to the top of the box bears on or lies closely against the wheel tyre.
Patent GB-787072-A (GB)
Title: Improvements relating to electro-magnetic switches
IPC: H01H50/54
Filed: 1954-02-16
Abstract: 787,072. Electromagnetic switches. NAIMER, H. Feb. 16, 1954 [April 21, 1953] No: 4583/54. Class 38 (5). A switch in which there is only an abutting connection between the movable contact and the armature comprises an armature 24 carrying a member 25 slidable on pillars 21 and biased by springs 26. Stops 32<SP>1</SP> on the member 25 cooperate respectively with stops 32 connected to a series of bridging contacts 29 slidable in a housing 27 and biased by weak springs 30. When the coil 23 is energized the member 25 moves against the springs 26 so that stops 32, 32<SP>1</SP> disengage and springs 30 move contacts 29 to bridge pairs of fixed contacts 31. The housing 27 may be detached from the remainder of the switch. In an alternative construction (not shown) the contacts are opened by the springs 30 when the coil is energized.
Patent GB-213081-A (GB)
Title: Improvements in or relating to domestic grates, ranges and the like
IPC: F24B1/183
Filed: 1923-02-17
Abstract: 213,081. Anderson, A. B. Feb. 17, 1923- Boilers, arrangement of; air, supplying for combustion; baffles.-In domestic grates, ranges, and the like, of the type in which a boiler 1 is placed behind the fuel space with a plate 6 arranged in front to form an extension of the boiler flue 4, the boiler is arranged so that it inclines downwardly towards the rear, as shown. The face 5 of the brickwork 3 may be staggered to retard the gases and deflect them on to the boiler. Internal flues 2 may be provided in the boiler, which is formed with a recess 7 in which the lower edge of the plate 6 is supported. The flue 4 may be closed by moving the plate 6 backwardly to the position shown in dotted lines. Airfor combustion may be heated in channels formed between spaced fire-bricks 8 arranged at the back of the ash space.