baber/WOPTO huggingface dataset:
Patent GB-887360-A (GB)
Title: Process for making derivatives of hydroxymethyl furfural
Filed: 1958-08-27
Abstract: Compounds having the formula <FORM:0887360/IV (b)/1> in which R is an alkyl radical having from 1 to 8 carbon atoms or the radical <FORM:0887360/IV (b)/2> are made by heating 5-hydroxymethyl furfural alone or with an alkanol having 1-8 carbon atoms in the molecule in the presence of an acid catalyst, the effect of the water formed being controlled either by continuously removing it or by using a large excess of alkanol.  Suitable catalysts are, for example, p-toluene sulphonic acid, sulphuric acid, a sulphonated ion-exchange resin, hydrogen chloride or zinc chloride.
Patent GB-933505-A (GB)
Title: Synthetic lubricants
IPC: C07C69/34
Filed: 1960-08-09
Abstract: A lubricating composition consists of (A) an oil of viscosity 1 to 30 centistokes at 210 DEG F., a neutralization value not above 1 mg. KOH/g and consisting of one or more polyesters having at least two ester linkages per molecule and obtained from trimethylol propane and either (1) caprylic and/or pilagonic acid, or (2) a mixture of caprylic and/or pilargonic acid with sebacic and/or adipic acid, and (B) 0,1 to 5% of <FORM:0933505/III/1> where R is an alkyl group containing up to 15 carbon atoms.  The ethyl and n decyl phenothiazines are specified.  The Provisional Specification also lists other alcohols and acids from which the polyesters may be obtained.
Patent GB-1247689-A (GB)
Title: Improvements in or relating to removable covers for apertures in pressure vessels
Inventor: MCIVER ROBERT FAULDS
IPC: G21C13/073
Filed: 1968-06-10
Abstract: 1,247,689. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 23 May, 1969 [10 June, 1968], No. 27580/68. Heading G6C. The plug 1 closes the aperture in the prestressed concrete pressure vessel 5 which houses a gas-cooled reactor and steam-generating heat exchangers. The lower portion 1a of the plug is bonded to a steel thimble 2, and the upper portion 1b is bound by the prestressing cable 4. A gas-tight seal is formed between the flanges 3, 7. Feed-water and steam pass through the pipes P in the shutter tubes 19, each of which is lined by the heat insulation 20.
Patent GB-616641-A (GB)
Title: An improvement in or relating to jacks for vehicles
IPC: B60S9/04
Filed: 1946-09-16
Abstract: 616,641. Vehicle supports. BROWN TRACTORS, Ltd., D., and ASHFIELD, H. E. Sept. 16, 1946, No. 27662. [Class 79 (iii)] A vehicle support comprises a sprag member b pivoted to the frame c and connected to a lifting arm h adapted to be moved by power means on the vehicle, which can contact the ground in such a position relative to the centre of gravity i that on upward movement of the sprag one pair of wheels is raised, as shown, and the vehicle may be tilted on the sprag by manual effort to raise the other pair of wheels. The power-operated member h may be the lifting bar provided on some agricultural tractors for lifting an agricultural implement, and the connection between the bar hand sprag b may be a chain g which can be detached from the bar h and wrapped round the sprag member when not in use, the latter then being raised to lie underneath the frame c, to which it is secured by a bolt through a hole b<SP>2</SP> and an appropriate bracket on the frame. The preferred construction of sprag comprises a pair of arms b to which is pivoted a sole-plate a, the arms having a stiffening cross-member e and each being connected by a chain g to a separate lever h.
Patent GB-933994-A (GB)
Title: Multiple support refractory arch and wall construction
IPC: F23M5/06
Filed: 1961-07-31
Abstract: 933,994. Furnace walls and roofs; covers. M. H. DETRICK CO. July 31, 1961 [Feb. 20, 1961], No. 27663/61. Classes 51 (1) and 51 (2). A wall or roof for a furnace comprises refractory hangers 36 suspended from girders 32 by brackets 33 and engaging tiles 37 which extend beyond the said hangers, the space between the tiles and the inner face 21 of the hanger being filled by short tiles 38. As shown, the tiles and hangers are arranged with alternate end engaging ribs and grooves to lock them together, the hangers 36 which are rectangular in cross-section having ribs 22, 23 on two long opposite faces with grooves 27 therebetween. The tiles 37 and 38, respectively, have similar ribs 41, 42, 43 or 50, 51, 52 and grooves 45, 46, 47 or 54, 55, 56. The other opposite vertical faces of the tiles have shallow interengaging ribs 49 and grooves 48 which have no substantial supporting function, but serve to obstruct the passage of hot gases, Fig. 5. The tiles are arranged so that a crack between adjacent tiles does not coincide with a crack between adjacent hangers, Fig. 5. A lighter wall can be made by using the tiles 38 in place of the tiles 37 with a shorter tile still in alignment with the hanger 36, Fig. 6 (not shown). A lighter construction still, Fig. 7 (not shown), utilizes tiles 38 as hangers and the shortest tiles as filler tiles disposed therebetween. A removable soaking pit cover, Fig. 8, has main frame members 63 and marginal frame members 64, respectively, carrying girders 66 and 65 from which tiles 37 are suspended by brackets 33. Tiles 38 are used as filler tiles, and, as shown, the rib and groove construction facilitates the formation of a peripheral rib seating on top of the soaking pit wall. A vertical wall structure, Fig. 12, comprises horizontal T-shaped girders 67 over which are hooked brackets 83 joined by vertical bars 71 formed with openings 73 through which extend brackets 76, tiles 38 each either disposed between the platform 90 and the flange 91 of a bracket 83 or held against lateral displacement by the finger 29 of a bracket 76, filler tiles 37 between the tiles 38, and filler tiles 57 in alignment with tiles 38. The bars 71 extend between flanges 84 and 87 in the upper part of the brackets 83, the lower ends of which engage slots 82 in lower bars 71. Expansion joints 92 are filled with refractory cement and layers of insulating material 93 and 94 are disposed between the metal framework and the tiles.
Patent GB-1346928-A (GB)
Title: Heat exchanger construction
IPC: F24C14/02
Filed: 1971-06-14
Abstract: 1346928 Heat exchangers; self cleaning ovens GENERAL ELECTRIC CO 14 June 1971 [15 June 1970] 27673/71 Headings F4S and F4W A heat exchanger construction 10, particularly suitable for reducing the temperature of the hot flue gases leaving a self cleaning oven by a countercurrent flow of ambient air, comprises a corrugated panel 25 suitably bent and held in a compressed state by a tension strap 36 to define two intermeshed series of triangular crosssection passages 40 and 50 for the flow of flue gases and ambient air respectively. The top and bottom ends of the passages are closed by resilient pads 38. Ambient cooling air enters the passages 50 through a manifold 44 and upper openings 42 and leaves through lower openings 52 and collecting manifold 54 from whence it passes as preheated secondary air to the oven burner 16. Hot flue gases enter the lower end of the passages 40 through inlet openings 58 and leave through outlet openings 60 from whence they pass into an inclined exhaust duct 62.
Patent GB-914298-A (GB)
Title: Needle holder for use in surgery
IPC: A61B17/04
Filed: 1961-07-31
Abstract: 914,298. Surgical needle holders. PORGES S.A. July 31, 1961 [Aug. 2, 1960; July 12, 1961],.No. 27738/61. Class 81 (2). A holder for a surgical suturing needle comprises a clamping member having relatively movable jaws for gripping the needle, the member being rotatable about an axis passing through the jaws. The clamping member for receiving the needle comprises a tubular member 3, Fig. 1, having an end stop against which a sliding jaw member 2, within its bore, may grip the needle. This jaw is actuated through a lever 11, by an inclined end surface 10 on a rod 8 which is pressed forward by a projection 7 on the handle 5 when the finger loops are pressed together. The clamping member 3 is rotatably mounted within a housing at the end of the support tube 1 and may be rotated by a cable 15, Fig. 2, passed around it and connected, at one end, to a spring-tensioned rod 17 and, at the other, to a rod 16 linked to a slidable member 20. This may be locked by a spring catch 25 while the handles 4, 5, Fig. 1, may be locked in the gripping position by the customary ratchet 23.
Patent GB-468775-A (GB)
Title: Improvements in and relating to means for maintaining a certain load distribution ratio of generators working in parallel on the same bus bar
IPC: H02J1/10
Filed: 1935-10-08
Abstract: 468,775. Supply systems. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 8, 1935, No. 27780. Void. Convention-date, Oct. 8, 1934. [Class 38 (iv)] Running generators in parallel.-In order to maintain a proportionate distribution of load between generators in parallel, their current strengths are compared in a single apparatus controlling the field of one of them. Thus a reversible motor 7 controlling a field regulator 6 is actuated when required by a relay 10 normally balanced by the current outputs of two machines 1, 4. Remote voltage control may be applied to the field regulator 3 of the other machine. The relay 10 may be of any suitable form, e.g. of drum sector or carbon pressure type.
Patent GB-355547-A (GB)
Title: Improvements in and relating to coating materials
IPC: C09D115/02
Filed: 1930-09-19
Abstract: The coatings obtained by use of solutions in volatile solvents of chlorinated rubber are rendered resistant to blows and cracking by adding to the solution hard materials such as carborundum or quartz meal of a grain size of 40-100 m .ALSO:The coatings obtained by use of solutions in volatile solvents of chlorinated rubber are rendered resistant to blows and cracking by adding to the solution hard material such as carborundum or quartz meal of a grain size of 40-100 m .
Patent GB-841146-A (GB)
Title: A method of improving the quality and reducing the swelling value of regenerated cellulose fibres
IPC: D01F2/10
Filed: 1956-09-13
Abstract: In the wet-spinning of viscose, a small proportion of an aliphatic alcohol containing not more than three carbon atoms is added to the viscose at any stage in its production, the viscose is spun into a bath containing sulphuric acid and a zinc salt, the threads are stretched in known manner in a second bath, cut, and introduced into a detensioning bath.  Up to 2% by weight of the alcohol, based on the weight of the alkali cellulose, may be added to the steeping liquid, to the alkali cellulose during shredding, or immediately prior to xanthation, or to the viscose at the end of the final dissolving process.  Methanol or ethanol may be used. A typical detensioning bath comprises 0.95% by weight of sulphuric acid, 2.8% of sodium sulphate and 0.5% of zinc sulphate. Filaments made in this way (including fine filaments of 1.5 denier) show high tensile and loop strengths, low swelling values, and pronounced permanent crimping.
Patent GB-1520292-A (GB)
Title: Internal combustion engine and method of operating the same
IPC: H01L21/66
Filed: 1975-07-03
Abstract: 1520292 Igniting part of charge by compression in IC engines TOWNSEND ENG CO 3 July 1975 [5 Aug 1974] 28138/75 Heading F1B A compression ignition I.C. engine comprises a cylinder 138 with a reciprocable piston 160, which during its compression stroke compresses a fuel/air mixture some of which is received and stored in a reservoir cavity 178 just before the piston has compressed the fuel sufficiently for ignition, the fuel remaining in the cylinder being ignited by the subsequent compression by the piston, the ignited charge causing ignition of the fuel stored in the cavity 178 when the piston has returned from its TDC position and communication between the cylinder and the cavity has been re-established. Fuel is supplied constantly to conduits 98, 100, Fig. 6, and by way of passages 106, 108, to grooves 110, 112, from which it passes via passageways 136 and openings 156, Fig. 2 to the cylinder when the piston is in an expanded position. Air is similarly supplied via conduits 76, 78, passages 84, 86, grooves 88, 90, passageways 134 and openings 154 to the cylinder. Compression is accomplished by rotation of a rotor 35 containing the cylinders and pistons so that rollers 166 follow a cam track 170. After combustion, the exhaust gases leave the cylinder via openings 158 which are slightly closer to the inner end of the cylinder than are the openings 154, 156 so that the gas-pressure in the cylinder falls before the openings 154 are opened to admit scavenging and cooling air to the cylinder. The exhaust gases and scavenging and cooling air flow out via the drive-shaft 26, Fig. 5. Forcing air into the cylinders helps to keep the rollers 166 in contact with the cam track.
Patent GB-533207-A (GB)
Title: Improvements in and relating to tobacco feeding mechanism for use in the manufactureof dense end cigarettes
IPC: A24C5/18
Filed: 1939-10-18
Abstract: 533,207. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO. Oct. 18, 1939, No. 28161. Convention date, Oct. 29, 1938. Class 130] Tobacco feeding mechanism for use in the formation of dense-end cigarettes includes a travelling or rotor element 14, adapted to receive and advance successive charges of tobacco, and means for effecting compression of such charges during their advance and prior to their delivery in spaced relation upon a travelling web 13 for inclusion in a cigarette rod. In one form, Fig. 2, tobacco showered by a picker roller in a feed chute 12 is received by pockets 15 in the rotor 14 and conveyed past a presser roller 25 and a member 29 pivoted at 31 into position for delivery upon the web 13. A movable bottom wall 16 in each pocket is provided with a guide post 17 engaging a stationary ecentric or cam 19 in order to compress the tobacco charge during its travel and to expel it in the lower position. A knife 26 at the rear of each pocket co-operates with the roller 25 to sever loose ends of tobacco. The web 13 may receive the main charge of tobacco before or after receiving the charges from the pockets 15 and travels to the conventional continuous-rod forming &c. mechanism. The chute 12 may be provided with a rotary bladed wheel for throwing the tobacco downwards. In a modification, Fig. 3, pockets on the rotor 37 are formed by blades 40 pressed outwards by springs 45 and the tobacco is carried between the rotor and the fixed wall 41 of the casing. Lateral compression of the tobacco charge in each pocket is effected by an abutment 46 on an arm 47 on a shaft 48 carrying an arm 52 actuated by a cam 49, so that the abutment is withdrawn when the tobacco charge is in position for deposit on the web 13.
Patent GB-520080-A (GB)
Title: A new or improved device for folding or turning in the margins of flexible material
IPC: B42C7/00
Filed: 1938-10-11
Abstract: 520,080. Bookbinding. FRYER, J. W., and EDWARDS, J. W. Oct. 11, 1938, No. 28175. [Class 16] The edges of binding or covering material for calendars or book covers and cases are folded or turned in by a device including a pair of hinged jaws, the distance between' the jaws when parallel being adjustable. A table or stand has a table 1 carried by end frames 2 connected by a channel-member 4 one leaf of a long hinge 5, the axis of the hinge being in the plane of the top of table 1. The other leaf carries a bar 10 with clips 11 for a rod 6 and with stepped faces for a further bar 12. Rod 6 is connected by a chain 23 to a treadle and by a link 28 to a spring 26. A bar 14 is hinged to bar 10 and has adjusting screws 15 whilst studs 17 project from bar 12 through bars 10, 14, shoulders 17a bearing against bar 14. Compression springs are provided between bars 10, 14. Bar 12 has a resilient rubber facing 13 and an undercut groove 19 for gripping-pieces 20 which overlie the facing. Screws 15 are set to adjust for the thickness of the coverboard or block while the pieces 20 are set for the width of the board and engage the cover material at the edge of the board. Opposite edges may be treated by two separate and adjustable devices in one machine, operating simultaneously or successively. A third or fourth may be added at right angles. The gap between the jaws may also be adjusted by superposed sliding wedges with screw operation. Specification 518,796 is referred to.
Patent GB-788760-A (GB)
Title: Improvements relating to sealing and venting devices for dry charged electric batteries
Inventor: GRAY ROBIN
IPC: H01M2/12
Filed: 1955-10-04
Abstract: 788,760. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. Sept. 12, 1956 [Oct. 4, 1955], No. 28203/55. Class 53. A pressure relieving device for a dry charged lead-acid battery comprises a cha.mber a vented to atmosphere by a tube b and a chamber f connected to the battery interior by a tube c, the chambers a, f being interconnected by a hole e and containing liquid which covers the hole e but which is insufficient to obstruct the ends of the tubes b, c. The liquid may be water, mercury, glycerine, ethylene glycol or a silicone fluid. According to the Provisional Specification, an inverted U-shaped siphon tube may connect the two chambers instead of the hole e or the two chambers may be entirely separate, each contain liquid and each have an outlet to atmosphere.
Patent GB-270359-A (GB)
Title: Improvements in or relating to means for cutting fabrics into lengths or portions and otherwise subsequently treating same
IPC: D06H7/02
Filed: 1925-11-10
Abstract: 270,359. Pare, J. W., and Coombes, W. Nov. 10, 1925. Folding paper.-A web of fabric is folded by apparatus comprising resiliently pressed adjustable rolls 41 and geared adjustable rolls 43. The uncut fabric is nipped between the rolls 41 by means of a bar 52 actuated from a cam 47, and then cut and the upper part falls into the position shown dotted, Fig. 2. The doubled fabric is then pushed between the geared rolls 43 by a bar 56 actuated from a cam 53. The folded fabric is removed by a conveyer 59.
Patent GB-1354369-A (GB)
Title: Methods of manufacturing semiconductor high-voltage rectifiers
IPC: H01L23/48
Filed: 1971-06-17
Abstract: 1354369 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 June 1971 [20 June 1970] 28440/71 Heading H1K A rectifier assembly including series connected diodes comprises two comb shaped electrodes 1, 2, each having a base portion and a plurality of teeth, the electrodes being positioned with their bases adjacent in order that diodes 11 may be soldered between the ends of teeth 3, 5, the bases thereafter being subdivided at 6 to produce the series connections. The electrodes may be of silver plated bronze, and be punched or etched from a single strip. The bases may be held together at 7 by welding, followed by soldering of the diodes between the teeth, and sub-dividing the bases about the alignment holes 6. The diode-holding teeth may then be encapsulated, followed by a general encapsulation of the electrodes.
Patent GB-1027671-A (GB)
Title: Improvements in or relating to domestic laundering appliances
Inventor: BARNISH PHILIP
IPC: D06F39/12
Filed: 1961-08-08
Abstract: One side of the casing of a laundering appliance, e.g. a washing machine or spin dryer, is wholly supported by a single wheel, the axis of which is fixed and lies in the same vertical plane as the resultant of the horizontal forces transmitted to the casing during operation.  The other side of the casing is supported on two retractable wheels, or on two feet when the wheels are retracted. Even when retracted, the wheels are held against the floor by springs to prevent rattling.  The feet may be dispersed with.
Patent GB-1076156-A (GB)
Title: Improvements in plating conducting areas on insulating surfaces
Inventor: LEVY PEPPO JOSEPH
IPC: H05K3/24
Filed: 1963-07-19
Abstract: <FORM:1076156/C6-C7/1> In order to electroplate or galvanically plate isolated conductive areas 3 of a printed circuit formed by photo-etching a copper-clad phenolformaldehyde laminate 1, the areas 3 are interconnected by electroless deposition.  After the plating step, the bridges are removed using a solvent for the resist. Alternatively, the areas to be made conductive and the resist bridges are simultaneously first electroless-coated, then plated.  In an example, the bridges are formed of shellac in butyl alcohol with glycerol, a catalyst for the electroless step, comprising palladium chloride dissolved in conc.  HCl, being added. Nickel is electroless-deposited in a bath comprising Nickel acetate (21 g/l), Sodium hypophosphite (24 g/l), Sodium lactate (20 g/l), acetic acid (10 ml/l); then a layer of gold may be added in an electroless-plating bath comprising Ammonium chloride (75 g/l), Sodium nitrate (50 g/l), Sodium hypophosphite (10 g/l), Potassium gold cyanide (2 g/l). The conductive areas and bridges are then electroplated with gold, after which the plated shellac bridges are removed by rubbing or brushing with methylated spirit. In another example, the bridges are formed from gum sandarac dissolved in methylated spirit, the palladium chloride catalyst solution being painted on subsequently.  Ethyl alcohol is used to remove the bridges.  Other resist gums mentioned include copal and kauri, and cobalt may replace nickel in the first electroless-plating step.
Patent GB-854493-A (GB)
Title: Sieves
IPC: B07B1/46
Filed: 1958-09-05
Abstract: 854,493. Sieves. GRAEPEL, F. Sept. 5, 1958, No. 28617/58. Class 117 Sieve parts k, l, m are joined by upstanding fold-over strips b, c of the part l which engages the adjacent upstanding strips of the parts k and m. The ends of the parts are bent into channels d, e with openings f, and the sides of the assembly receive channels g, h. Angle brackets i prevent unsieved material from falling over the sides.
Patent GB-597855-A (GB)
Title: Improvements in apparatus for spraying agricultural ground, tennis courts, sports grounds and other spaces
IPC: B05B3/04
Filed: 1945-10-30
Abstract: 597,855. Liquid-pressure engines. WYLD. W. M. S. Oct. 30, 1945, No. 28660. [Class 69 (ii)] In a hydraulic motor a sprayer attached at t. is oscillated by a toothed rack e between two pistons b, b<1>, supply of water to and from the pistons is controlled by a valve g. The valve is held in position by a member o passing along a slide f, but at the end of each stroke the member leaves the slide so that the valve is free to rotate, a quick throw action being given by the arm p compressing one or other of two springs q, q<1>. The stroke of the pistons is varied by using slides f of different length.