baber/WOPTO huggingface dataset:
Patent GB-1075069-A (GB)
Title: Improvements in or relating to circuit arrangements for feeding an electric load
IPC: G05F1/455
Filed: 1965-03-10
Abstract: 1,075,069. Control systems for discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 10, 1965 [March 12, 1964], No. 10179/65. Heading H2H. In a circuit for a pair of reverse parallel controlled rectifiers, the, control voltage is of sinusoidal form with a steep leading edge and the trailing zero lagging behind the supply voltage zero. A transducter 39 varies the phase of the voltage across points 44, 45. When point 44 is positive with respect to point 45 a diode 46 is conductive rendering a transistor 50 conductive which completes a circuit through components 55, 56, 57, 58, causing a current to flow in a winding 57 which fires rectifier 7. The voltage on winding 59 is phase shifted 30 degrees by resistor 61 and capacitor 60. In the next half cycle transistor 49 becomes conductive. The load 9 may be one or more dischage tubes. Where a number of circuits are to operate in parallel a. switch 43 is moved to position 64 which is connected to a common control circuit.
Patent GB-199200-A (GB)
Title: Safety device applicable to windows for use of window-cleaners, painters or for other like purposes
IPC: A47L3/02
Filed: 1922-04-20
Abstract: 199,200. Tobin, B. April 20, 1922. Staging, window.-A collapsable window staging consists of upright backing members 1 pivoted to cross-bars 20 at their tops and bottoms and adapted to carry inwardly extending bars 3 pivoted at their front ends to screw adjusting bars 5, 6, by which they are adjusted to press against the sides of the window frame. Guard bars 17 arealso fitted to the back cross-bars, and the lower cross-bar may carry a pivoted platform 14 to rest on the sill. When the platform 14 is not used, the lower cross-member is supported by studs 21 resting on the sill.
Patent GB-539096-A (GB)
Title: Improvements in and relating to retainer means for securing trim fabric material or the like to part of a vehicle body
IPC: B60R13/02
Filed: 1940-07-02
Abstract: 539,096. Attaching trim fabric to vehicle bodies. BRIGGS MANUFACTURING CO. July 2, 1940, No. 11154. Convention date, Aug. 16, 1939. [Class 108 (i)] For attaching fabric trim materials to vehicle parts, a metal channel section strip has projections extending from each side wall of the strip towards the other side wall and adapted to pierce the edge of the fabric disposed between them, upon bending a wall of the channel towards the other. The strip may also secure a windlace or windcord. As applied to attaching the headlining to a roof rail 12, the channel-section strip 18 has lateral extensions or blades 21 formed each with a projection 22 and projections 20 formed by punching. A lip 16 on the windlace 15 is laid against a flange 13 of the rail 12 and the blades 21 are driven through it and slots in the flanges until the projections 22 engage behind the flange thus securing the strip and windlace to the flange. The edge of the trim fabric 17 is then inserted in the channel of the strip and by hammering the wall 18b thereof the projections 20 are caused to pierce the fabric and it is also clamped between the walls and particularly between the edges of the walls one of which is inturned at 19 for this purpose. The fabric 17 is then turned up over the wall 18b as shown in Fig. 1.
Patent GB-106723-A (GB)
IPC: F41F3/10
Filed: 1916-08-08
Abstract: 106,723. Fairweather, W. C., (Lake Torpedo Boat Co.). Aug. 8, 1916. Valves actuated by fluid under control of auxiliary pilot or relay valve.-A valve 48 is opened by a solenoid 51 to admit compressed air to a cylinder 45<1> above a piston 45, which is thereby forced down with another piston 43 opening a vent 42. Compressed air confined above a third piston 37 is thus released suddenly, and the pressure underneath lifts the piston and with it a main valve 28 in a casing 27. A leak 38 is made in the piston 37 to equalize the pressure on both sides of it before the aforesaid action; a non-return valve 31 is arranged beneath the main valve 28.
Patent GB-214088-A (GB)
Title: Improvements in or relating to convertible bedsteads
IPC: A47C17/16
Filed: 1923-04-25
Abstract: 214,088. Cotter, V. R. April 25, 1923. Bedsteads convertible into seats, couches, &c.-A convertible bedstead and couch comprises a mattress b on a sliding frame b<1> and a smaller mattress c adapted to form the back of a couch &c. (Fig. 2), or an extension of the mattress b when used as a bed (Fig. 4). The arrangement is such that when adjusted to the position of Fig. 2 a substantial space is provided between the mattresses to accommodate the bedclothes. The mattress c is mounted on a backing c<1> carried by pairs of links d, d<1>, one link of each pair being pivoted to the end of the bedstead &c. framing a, and the other to the mattress support b<1>. The links d' are guided in slots e in the bed posts, the parts; being secured in the position of Fig. 2 by the engagement of rollers f in notches g. When required as a bedstead, the support b<1> is first raised to discharge the stops h which may be arranged to co-operate with hooks or other fastening-devices on the framing.
Patent GB-672914-A (GB)
Title: Improvements in aircraft
IPC: B64C3/40
Filed: 1949-04-28
Abstract: 672,914. Aircraft fuel tanks arranged in folding wings. BLACKBURN & GENERAL AIRCRAFT, Ltd. May 24, 1950 [April 28, 1949], No. 11346/49. Class 4. The wings 5 of an aeroplane are connected to the fuselage by pivots 4 so that they may be swung from a low-speed spread position to a high-speed swept-back position, and fuel tanks 13 are disposed in the leading edges of the wings to accentuate the shift of the centre of gravity upon movement of the wings and thus offset the effect of the shift of the centre of pressure. Front and rear fuselage tanks 10, 11 are connected to the respective wing tanks by conduits 16, 17 and a pressure cylinder 40 forces fuel from the fuselage tanks to the wing tanks and from there to a feed tank 14 through conduits 15, 15<SP>1</SP>. By this arrangement the wing tanks are the last to be emptied. The wings are moved by hydraulic jacks 36 whose supply conduits 55, 56 are connected to a movable cylinder 51 connected at 50 to a supply tank and containing a piston valve 52, 53. The valve is connected to one wing by a bell crank 63 and link 59<SP>1</SP> and the cylinder is similarly connected to the other wing by bell cranks and links 58, 59, 60, 61, so that if one of the wings moves faster than the other, the consequent relative movement of the piston valve and cylinder reduces the supply of liquid to the jack connected to the faster wing and reduces the supply to the other jack. In their spread position the wings are locked by projections 67 and hydraulic plungers 70 on the fuselage engaging openings in the wing leading edges, while in the swept-back position hydraulic plungers 72 engage openings 73 in the trailing edges.
Patent GB-579331-A (GB)
Title: Improvements in combustion chambers for power-gas-generators, internal-combustion turbines and the like
IPC: F02C3/14
Filed: 1943-07-13
Abstract: 579,331. Gas turbines. BELL, F. R. July 13, 1943, No. 11361. Drawings to Specification. [Class 110 (iii)] In a gas turbine, a circular arrangement of combustion chambers, as described in Specification 579,511, is housed in a cylindrical casing co-axial with and surrounding the high-pressure end of the air compressor. The latter is protected by thermal-insulating sheath. Reference has been directed by the Comptroller to Specification 586,556.
Patent GB-790127-A (GB)
Title: Improvements in multi-unit, independently operated electric switches
IPC: H01H23/02
Filed: 1955-04-20
Abstract: 790,127. Mechanical switches, without quickaction. FLETCHER, W. H. July 20, 1956 [April 20, 1955], No. 11403/55. Class 38 (5). A multi-switch unit assembly has independently-operated rotors 3 each mounted in a semi-cylindrical recess in one side of a stator 1, the open side of the recess being closed by the stator 1 of the next switch. Each stator 1 has recesses 14 containing three spring-loaded contacts 2, two of which can be bridged by a contact 4 in the rotor 3 by depressing either of two projecting surfaces 32. The rotor has arcuate slots 31 engaging ribs 12, 13 in adjacent stators. Projections 15 on each stator 1 project into the bottom of the recesses 14 of the next stator to locate the units. The assembly is held together by bolts 7 and end-plates 5, 6, the former having projections 53 and a rib 52 analogous to those on the stators.
Patent GB-1243158-A (GB)
Title: Improved leak testing apparatus
IPC: G01M3/04
Filed: 1970-03-10
Abstract: 1,243,158. Endless conveyer belt systems. GILLETTE CO. 10 March, 1970 [19 March, 1969], No. 1428/70. Heading B8A. [Also in Division G1] A conveyer for carrying aerosol cans through a tank containing liquid for testing for leaks comprises a conveyer 30, 32, 34, 36 and 38 having a non-continuous surface to permit passage of fluid therethrough and apertured conduit means 70-1 to 70-4 such that by pumping liquid through the conveyer into the conduits the cans are retained on the conveyer. The conveyer comprises five chain belts 30, 32, 34, 36 and 38 supported on metal plates 50-1 to 50-6. A conduit 70-1 to 70-4 is provided beneath each of the gaps between the belts and has a series of apertures running along the gap. Liquid is pumped into the conduits through the gaps between the belts and back into the tank by pumps 82 and 86 to retain the cans on the conveyer, each can straddling the gap between two belts. The cans are brought to the testing station by conveyers 100-1 to 100-4 and are guided by guiding walls 106 on to auxiliary conveyers 102-1 and 102-2. Guide walls 110 divert the cans on to the ends of conveyer belts 32 and 36 and guide walls 112 position the cans so as to bridge the gaps between the conveyer belts 30, 32, 34, 36 and 38. Guide walls at the exit of the tank split the cans into two streams carried by conveyers 124 and 126.
Patent GB-238002-A (GB)
Title: Improvements in or relating to book-rests
IPC: A47B23/04
Filed: 1924-05-08
Abstract: 238,002. Cothay, F. H. May 8, 1924. Book rests; leafholders. - A bookrest which may be constructed of hinged parts to fold flat, comprises a rear support 1 and leafholders 7 so arranged as to press on the open leaves of a book and to be adjustable for different thicknesses of books. The leaf-holders 7 are snail - shaped, are pivoted in a substantially horizontal plane, and are mounted on a flap 6 hinged to the foot 5 of the rest. An upwardly-extending rib 8 is hinged to the rear support 1 to project forwardly between the two holders 7. The rear support 1 is preferably in two sections with a gap between them for the back of a book.
Patent GB-1368921-A (GB)
Title: Casting of liquid metals using an electromagnetic conveying trough
IPC: B22D17/30
Filed: 1973-03-09
Abstract: 1368921 Casting apparatus AEG-ELOTHERM GmbH 9 March 1973 [17 March 1972] 11495/73 Heading B3F  A casting apparatus comprises a furnace 2, an electromagnetic conveying trough 3, and a mould 16, the mould being attached to the upper end of the trough and having a trough-shaped entry 17 forming an extension of the trough 3. The connection between the mould and trough is provided by a plate 14 having an opening forming a sill 15 which rises above the base 13 of the trough and divides the flow of liquid metal. Pneumatically operated clamping elements are provided between the plate 14 and the mould 16, the said elements being adapted to draw the furnace 2 and trough 3 towards the mould. In use, the electromagnetic travelling field produced by the two inductor windings 9 and 10 is such that the rate of flow of metal along the trough 3 is greater than or equal to the maximum rate at which the mould will accept the metal. This ensures that the ingate 18 of the mould is kept full of metal throughout the pouring process. When the mould has been filled, the winding 10 is switched off but the winding 9 remains energized so that molten metal is maintained in the lower portion of the trough 3 while the mould 16 is being replaced. The moulds may be mounted on a turntable or travelling conveyer.
Patent GB-674107-A (GB)
Title: An improved device for sharpening the knives of lawn mowers
IPC: B24B3/42
Filed: 1950-05-09
Abstract: 674,107. Sharpening lawn-mowers. RAMSAY, D. J. May 9, 1950, No. 11527/50. Class 60. A device for sharpening the blades of lawn mowers consists of a pair of brackets 2 secured to the stretcher bar 14 of the mower, a plate or bar 5 extending between the brackets, threaded studs 10 freely passing through the plate, an adjusting nut 13 threaded on each stud above the plate and a helical spring 11 on each stud below the plate, and an abrading or sharpening element or stone 8 carried by the studs. The lower ends of the studs 10 are secured to a channelled holder 6 having its lower edges inturned to form lips 7 which engage grooves 9 in the sides of the stone 8; alternatively, the holder 6 may be dispensed with, the lower ends of the studs 10 being embedded in the stone 8. The brackets 2 are clamped on the stretcher bar 14; alternatively they may be bolted or welded to the stretcher bar.
Patent GB-494306-A (GB)
Title: Improvements in the production of cast iron
IPC: C21C1/08
Filed: 1937-04-23
Abstract: In a process for producing cast-iron containing silicon, in which sand and finely-divided iron or steel are heated in a furnace or cupola together with coke or other carbonaceous material (which may be the heating fuel) to produce ferro-silicon in the presence of the iron or steel with which it is to be combined, a furnace or cupola having two widely-spaced melting zones is employed, the sand and finely-divided iron or steel being introduced above the upper heating zone.  The ferro-silicon is formed in the region between the two zones, after the ingredients have been melted in the upper zone, and it combines with the metal passing down this region, further heating and melting of the metal occurring in the lower zone.  The mixture of sand, finely-divided iron or steel, and coke, which may be respectively in the proportions seventeen, twenty-eight, and ten by weight, may be put into sheet-metal containers, which are charged into the furnace together with the metal, which may be scrap steel, and fuel.
Patent GB-768624-A (GB)
Title: Improvements in hydraulic torque converters
IPC: F16H41/26
Filed: 1955-04-22
Abstract: 768,624. Hydrodynamic torque converters. REGIE NATIONALE DES USINES RENAULT. April 22, 1955 [April 24, 1954], No. 11758/55. Class 69 (2). A torque converter comprises an impeller 10, a runner 11, and a reaction member 7 mounted on a stationary housing 8 through a one-way clutch 9. The form of the reactor blades is such that the angle of entry of a blade decreases with an increase of the distance from the axis of rotation of the converter, while the angle of exit remains constant over the whole height of the blade.
Patent GB-674831-A (GB)
Title: Improvements in or relating to the manufacture of laminated stiffened fabrics and articles of apparel
IPC: D06M17/06
Filed: 1947-05-02
Abstract: A thermoplastic resin such as polyvinyl acetate or chloride, a copolymer of vinyl acetate and vinyl or vinylidene chloride, polystyrene, an acrylic or methacrylic resin is added in small amount ( 1/2 -3 per cent) to the water or assisting liquid used in the hot-pressing of fused fabric assemblies in making semi-stiff laminated fabrics.  The assisting liquid may be a solvent or solvent mixture, a plasticizer or solvent-plasticizer mixture, which may be diluted with water and may contain also starch, gum, pigments, or wetting agents such as turkey red oil. Examples of assisting liquids are (1) diacetone alcohol, ethyl and butyl lactates, triacetin, water, and polyvinyl acetate and polymethyl methacrylate added as emulsions; (2) turkey red oil, water, and polyvinyl acetate and polymethyl methacrylate emulsions.  Specification 673,922, [Group VIII], is referred to.
Patent GB-527351-A (GB)
Title: Improvements in or relating to bearing mounting
IPC: F16C27/06
Filed: 1939-01-21
Abstract: 527,351. Mounting ball bearings. STEVENS, A. H. (Fafnir Bearing Co.). Jan. 21, 1939, No. 11815/40. Divided out of 525,551. [Class 12 (i)] A sound-deadening mounting for the ball bearings of a shaft 34 comprises a relatively flat block 28 of rubber having radially projecting flange or feet 28<SP>1</SP> and formed with a circular recess 13 for receiving the ball bearing. The feet 28<SP>1</SP> are formed with holes to receive bolts 30 securing the mounting to a support 29. The block may be recessed so as to space the part of the block around the shaft from the support 29. The recess 13 may be formed with a flange 15 to assist in retaining the bearing in place. The bearing preferably comprises outer and inner rings 16, 17 and interposed balls 18 sealed by lubricant-retaining plates 19. The shaft is held against axial displacement by a collar 20 and rubber washer 21. The block 28 may be covered by a sheet metal plate 32 having parts abutting parts of the plate 29 to limit the compression of the block 28. The inner ring 17 may be insulated from the shaft 34 by an annulas 35 of rubber or other sound-deadening material. The outer ring 16 may be grounded to the support by means such as described in Specification 525,551 and the inner ring 17 may be grounded to the shaft 34 by a wire 38. The sealing plates instead of being carried by the bearing may be seated in the bearing recess 13.
Patent GB-1033471-A (GB)
Title: Improvements in or relating to electrically propelled vehicles
Inventor: PARKER ROBERT HENRY
IPC: B60K1/00
Filed: 1964-03-20
Abstract: 1,033,471. Electric vehicles; single wheel mountings. A.C. CARS Ltd. March 22, 1965 [March 20, 1961], No. 11874/64. Headings B7D and B7H.  The single steering and driving wheel 4 of a battery electric invalid chair is mounted on an inclined axle 5 at the foot of shaft 7 which is connected by chain drive 14, 15, 16 to manual actuating member 12 and is driven by motor 20 through V-belt 17, pulley 10 rotatable on shaft 7 and friction cone 9 engaging surface 8 of the wheel. The friction drive may be replaced by bevel gears. Actuating member 12 has a control handle at its upper end which is depressed to close switch 22 and start the motor and is moved angularly to steer the wheel 4. Extension 24 of shaft 7 carries a wheel, direction indicator at the top.
Patent GB-919802-A (GB)
Title: Improvements in and relating to the stacking of sheet materials
IPC: B27N3/22
Filed: 1960-04-04
Abstract: 919,802. Delivering sheets. SIEMPELKAMP, E. April 4, 1960, No. 11902/60. Class 100 (1). [Also in Groups V and XXX] Sheets of wood chips &c. 13 are produced at a blank-forming station and are delivered by a conveyer 11 on to a hinged platform 22 which is provided with a downwardly sloping face down which the sheets slide and gather speed so that the gap 52 is greater than the gap 51 between sheets on the conveyer 11. The platform is pivoted at 42 and is swung so that sheets are delivered therefrom alternately to conveyer belts 23, 24 via stationary platforms 49, 50. The belts 23, 24 are driven at a greater speed than that of belt 11. The sheets are transferred by belts 23, 24 to a multi-lead rack prior to further processing in a press. Movement of the platform 22 is controlled by a device 80 which senses the gaps 51.
Patent GB-610980-A (GB)
Title: Improvements in or relating to pneumatic tools
IPC: B25D9/08
Filed: 1946-04-18
Abstract: 610,980. Percussive - tools. BOURSET, R. A. April 18, 1946, Nos. 11965, 11966 and 11967. Convention dates, April 19,1945, Oct. 26, 1945 and Nov. 20, 1945. [Class 124] In a pneumatic hammer or like tool, the striking side of the piston is constantly subjected to atmospheric pressure whilst its opposite side is subjected to pressure fluid for its striking stroke, to atmospheric pressure in its inoperative positions, and to a partial vacuum for its return stroke. In the form shown in Fig. 1, the piston 1 slides in a cylinder 2 with upper and lower openings 7<SP>1</SP>, 8, 9, and compressed air supplied by a bore 4 passes to the cylinder space 11 or to an annular-jet ejector 6 under the control of a cylindrical slide valve 5. In the form shown in Fig. 4, initial pressure on a pushbutton 5 first raises a valve 20 against the pressure of air supplied by a bore 4, this air operating ejector 6 to raise the piston 1. The latter is temporarily held in its innermost position by means of a groove 49 engaged by spring-pressed balls 50. Further pressure on the push-button 5 cuts off the air supplied to the ejector and raises a valve 25, the compressed air then raising a piston 41 which opens a valve 42. The inner end of the cylinder is closed to the atmosphere and the compressed air causes the striking stroke of the piston 1 under the control of an adjustable shutter 30. Release of the push-button re-closes the valves 20, 25 and 42. The tool 3 slides freely in an abutment 13 and is retained therein by means of a spring 14 and a washer 15. In one modification of this form of tool, the push-button 5 and valves 20, 25 are replaced by a spring- pressed cylindrical slide valve, and a grooved piston 41 is employed. Other modifications include a screwed collar to receive a larger cylinder, a lever, or a sliding sleeve coaxial with the cylinder, instead of the push-button, and a handle forming more than 90 degrees with the axis of the cylinder. In the form shown in Figs. 16 and 17, the tool 3 is formed with a large-radiused enlargement 88 and is retained in position by means of a coiled spring 14 screwed on to the cylinder 2 and screwed into either a ring 15 or a cage 80, the inner surface of which is-stepped or conical to receive a twosegment ring 93.
Patent GB-1301172-A (GB)
Title: A process for the manufacture of a synthethic wollastonite
Inventor: OHNEMULLER WALTER
IPC: C04B35/22
Filed: 1970-03-12
Abstract: 1301172 Synthetic #-wollastonite; ceramics REIMBOLD & STRICK 12 March 1970 [12 March 1969] 11996/70 Headings C1A C1J and C1M A synthetic, crystalline, #-wollastonite having a BET specific surface area of 1-100 sq. m./g. is obtained by subjecting an aqueous suspension of calcium oxide hydrate and SiO 2  in a molar ratio of SiO 2  : CaO of from 0À7-1À3 to hydrothermal treatment at 100-500 C to produce calcium silicate hydrates and then annealing at 850-1150 C. The intermediate hydrates are preferably xonotlite and tobermorite. These may be formed by hydrothermal treatment at above 204 C., for 4 hours. From 2-10% of a mineralizer, e.g. NaF, CaCl 2 , NaCl, may be incorporated. At 150 to 180 C., in the presence of a mineralizer calcium silicate hydrate phases CSI and CSII of 30 to 120 sq. m./g. surface are formed. The product may be admixed with ball clays, kaolin, &c., and may be used in the preparation of ceramic moulded bodies, paint pigment or glazings.
Patent GB-754867-A (GB)
Title: Anti-rheumatic suppository
IPC: A61K9/02
Filed: 1954-04-26
Abstract: An anti-rheumatic suppository contains calcium salicylate and an inert substance suitable for rectal administration e.g. polyethylene glycol, hypocola or cocoa butter.  The suppository may be prepared by thoroughly mixing 160 parts by weight of the inert substance with a mixture of 24 parts salicylic acid and 8 parts calcium carbonate, sterilizing the resultant mixture at about 120 DEG C., and permitting the evolved gases to escape.
Patent GB-1200861-A (GB)
Title: Improvements in double twisting spindles
Inventor: GRIEVE ALOYS
IPC: D01H13/10
Filed: 1969-03-06
Abstract: 1,200,861. Double twist spindle. HAMEL G.m.b.H. ZWIRNEREI-UND SPINNEREIMASCHINEN. 6 March, 1969 [28 March, 1968], No. 12016/69. Heading D1D. In a double twisting spindle having a stationary nozzle 25 for spraying liquid or gaseous media onto a running yarn, the nozzle is directed towards a deflecter plate 9 mounted on the thread storage disc 8 so that the yarn can pick up the medium from the plate. The nozzle can be controlled by a valve 28 operated intermittently by a relay device 29. The spray intervals are preferably equal to or greater than the time taken for one revolution of the deflecter plate.