baber/WOPTO huggingface dataset:
Patent GB-815571-A (GB)
Title: Improvements in or relating to the manufacture of thermionic valves
Inventor: ACTON ERIC WILLIAM VICKERS
IPC: C03C27/04
Filed: 1955-07-28
Abstract: An alloy for plating with Cu, Ag or Au and for subsequent sealing to a glass component of matching thermal expansion characteristics has a composition in per cent by weight of:-Ni 28-30, Co 16-18, Mn 0.25-0.31, Si 0.1-0.2, Cu up to 0.1, C 0.05, S 0.005, Fe the balance. Specification 815,572 is referred to.
Patent GB-1305821-A (GB)
IPC: E21C37/22
Filed: 1970-05-06
Abstract: 1305821 Scaling bars; handles ROCK TOOLS Inc 6 May 1970 [7 May 1969] 21859/70 Headings B4C and B4K [Also in Division F2] A scaling bar comprises an elongate tube, e.g. of aluminium, a coupling e.g. of steel fitted into engagement with one end of the tube, a scaling point the shank of which is releasably secured in the coupling, and a jacket of resinimpregnated fibre glass covering and bonded at least to the tube, As illustrated in Fig. 2 the tube 10 is in press fitted engagement with the coupling 11 and the jacket 12 extends over a portion of the coupling. The shank 13a of the scaling point 13 is releasably secured in the coupling by complementary screw threads in the coupling and on the shank. A lock nut 16 is also provided. A similar coupling is provided at the other end of the tube and may receive a further scaling point or a handle. In the embodiment of Fig. 3 each coupling has external grooves 29 into which the jacket can extend, has an end portion 22b received within one end of the tube 23, and has a recess 27 which receives the shank of the scaling point 24 or handle 25. The handle includes a loop 33. Two such bars may be connected together by connector 34 (Fig. 5).
Patent GB-275035-A (GB)
Title: Improvements in earth scoops
IPC: E02F3/64
Filed: 1926-09-06
Abstract: 275,035. Hiscock, P. H. Sept 6, 1926. Surface-grading machines.- An earth scoop 5 mounted on a wheeled frame may be tilted and held in various positions for cutting hard ground or clay, or for taking up a load of earth, gravel, &c., for dumping and spreading earth with a fairly level surface as in road construction, as shown in Fig. 7, for transporting a load, or for dumping a load in a heap. The body of the scoop has curved and straight portions with a cutting edge 5<g>, and is mounted to turn on a fixed axle in the frame 1, 1<a> at a position forward of and lower than the axles of the wheels 3. The scoop is rotated and held by a ratchetoperated winch 19 acting on ropes 16, 17 secured to a pulley 18 on the scoop. The drum 19 or its spindle is connected with three ratchet wheels 20, 21, 21<a>. The wheels 20, 21 are operated by pawls 23, 24 on a hand lever 22, and holding. pawls are provided to engage with the wheels 20, 21a. The scoop may also be held by chains 14<b>, 14<c>, provided with hooks to engage the edges 5<h> and holes 14d in the body, respectively.
Patent GB-243837-A (GB)
Title: Improvements in sound producing devices
IPC: H04R7/00
Filed: 1924-09-18
Abstract: 243,837. Wilhelm, F. Sept. 18, 1924. Diaphragms not associated with tone-arms; horns, arranging and supporting. - In a soundreproducing device such as a talking machine comprising a diaphragm associated with a resonance box, the diaphragm or its carrying frame is mounted directly on one sounding wall of the box, a sound post, strut or the like being interposed between the diaphragm and the opposite sounding wall. As shown applied to a loudspeaker, the box comprises two walls 9, 16 the diaphragm 5 carried by the frame 12 being secured to the wall 9. The diaphragm may, how. ever, be formed by a thin integral portion of the wall itself, or may be secured directly by an adhesive over an aperture in the wall. A sound post 44 bearing against the diaphragm is adjustably connected to a bridge piece 43 carried by the wall 16. The device is supported on legs 17.
Patent GB-911136-A (GB)
Title: Potentiometer
Inventor: LOCK TOM
IPC: H01C10/40
Filed: 1960-06-23
Abstract: 911,136. Variable wire-wound resistors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 19, 1961 [June 23, 1960], No. 22025/60. Class 37. A potentiometer comprises an annular casing, a helically-wound resistance wire supported by the inner surface of the casing, a rotatable screw-threaded spindle extending axially within the casing and a non-rotatable carriage engaging said spindle so as to be moved axially in response to rotation of spindle and carrying an electrical contact connecting the spindle and resistance wire. In Figs. 1 and 2, resistance wire 2 is wound on a rectangular former having a low melting-point or alternatively on a former of material which will not adhere to adhesive. The wire is then either coated with adhesive and placed within casing 1 or the casing moulded around the former, whereby the winding is secured to the casing. The former is then withdrawn or melted away. Electrical contact with the winding ends is provided by two metal rings 14, 15 provided with terminal leads 11, 12. A rotatable screw-threaded spindle 3 extends axially within the casing and can be rotated by screw-head 4. The other end of spindle 3 is supported by a spring-loaded ballbearing 5 which bears against surface 6. A carriage 7 of insulating material engages the thread of spindle 3 so that rotation of the spindle causes the carriage to move along the casing. Carriage 7 has a hole drilled in it such that two ball-bearings or metal caps 8, 9 forced apart by spring 10 make contact with the winding 2 and the spindle 3. An external connection 13 is made to the spindle 3 via metal plate 6. Casing 1 is illustrated as being square but may be of any cross-section, although a square or rectangular cross-section allows a plurality of potentiometers to be placed side by side. The casing may be enclosed in a metal can 16.
Patent GB-220390-A (GB)
Abstract: 220,390. Andrews, T., and Rose, Downs, & Thompson, Ltd. May 18, 1923. Oils, purifying &c.-In the bleaching, thickening, or bleaching and thickening of oils by air, the air is introduced into the oil prior to its entry into the treatment vessel, and the mixture is circulated in a closed cycle until action is complete. Preferably the, air is first dried, the mixture is heated in its circuit, 'e,.g. to 70-150‹ C., and a pressure e.g. 40-100 lb. is maintained. Using the apparatus shown, air is drawn through a drier 5 and forced by a pump 4 into oil in the circuiting pipe 12. The mixture is forced by a pump 10 into a treatment vessel 1, from which it overflows into a funnel 16, a pipe 15, and a heat-interohanger 11 back to the pipe 12, air above the level of the funnel passing down a pipe 17 drawing in the foam on the surface of the oil. Excess air escapes through a pipe 21, a trap chamber 20, a loaded valve 23, a pipe 24, and an oil-collecting vessel 25.
Patent GB-1220504-A (GB)
Title: Structural members for use in aerofoils
Inventor: LOWES FREDERICK JOHN
IPC: B64C3/00
Filed: 1968-05-09
Abstract: 1,220,504. Making aircraft; stamping. DOW CHEMICAL CO. 9 May, 1968, No. 22107/68. Headings B3A and B3Q. [Also in Division B7] A structural element of an aerofoil is formed from a sheet of rigid material which is indented over its entire surface to such a depth that the raised portions on opposite sides of the sheet conform to the aerofoil outer surface profiles or to one surface profile and to a plane corresponding to the mean chordal plane of the aerofoil. An initially flat sheet 44 is placed between opposed peg die plates 38, 42, the respective pegs 36, 40 being arranged in the regular pattern shown in Fig. 7 or in staggered formation (Fig. 9, not shown) and the heights of the pegs on each plate being such that when the two plates are brought together as shown in Fig. 5 the raised portions of the indentations on both sides of the sheet will conform to the external profiles of the aerofoil. In an alternative construction the pegs of one plate are of uniform length so that one side of the indented sheet will conform to the mean chordal plane of the aerofoil, two such indented plates being joined, as by spot welding or bonding on said planes to form an aerofoil structure. A skin (not shown) is attached to the profiled member by spot welding or bonding to provide a complete aerofoil.
Patent GB-230116-A (GB)
Title: Improvements in and relating to the production of anthraquinone derivatives
IPC: C09B1/20
Filed: 1923-09-03
Abstract: The 1-phthalimidoanthraquinone described in Specification 214,765 is nitrated in concentrated sulphuric acid solution, the product is hydrolyzed in diluted sulphuric acid, and the resulting dinitroaminoanthraquinone reduced by sodium sulphide to a triaminoanthraquinone which dyes cellulose acetate purple shades from aqueous suspension; benzoylation of the triamino compound gives a product which dyes cotton bluish-red shades from a hydrosulphite vat.ALSO:The 1-phthalimidoanthraquinone described in Specification 214,765, [Class 2 (iii), Dyes &c.], is nitrated in concentrated sulphuric acid solution, the product is hydrolyzed in diluted sulphuric acid, and the resulting dinitroaminoanthraquinone reduced by sodium sulphide to a triaminoanthraquinone which dyes cellulose acetate purple shades from aqueous suspension.
Patent GB-638904-A (GB)
Title: Improvements in or relating to the purification of aluminium and magnesium
Inventor: WEIL WALTER M
IPC: C22B21/06
Filed: 1946-07-25
Abstract: A process of refining impure aluminium and magnesium comprises forming a body of molten metal containing the magnesium and aluminium to be purified, the magnesium content of the melt being at least twice that of the aluminium content, providing a suitable flux to cover the metal, puddling the flux and metal to cause intimate contact between the flux and interior portions of the body of molten metal, causing thickening of the flux whereby heavy metallic elements, namely manganese, chromium, zirconium, titanium and iron, are precipitated out and form a sludge with portions of the flux, which settles out, then separating the molten metal from the flux and distilling magnesium from the aluminium.  Zinc may be incorporated in the initial body of molten metal to the extent of 5-60 per cent of the aluminium present, and is eliminated with magnesium during the final distillation.  A precipitant may be added to the flux-covered bath to aid in thickening the flux and in precipitation of the heavy metal to be removed.  Such precipitant may be one of the said heavy metals or a halide or complex halide of such heavy metal.  U.S.A. Specification 1,918,339 is referred to.
Patent GB-912528-A (GB)
Title: Improvements in or relating to laminated constructions
Inventor: CAWLEY STEPHEN ROBERT
IPC: B32B15/08
Filed: 1960-06-24
Abstract: 912,528. Laminates. TOUGH PLASTICS Ltd. June 12, 1961 [June 24, 1960], No. 22224/60. Class 140. A process for forming a laminate of corrosionresistant thermoplastic resin and steel comprises providing a layer of a thermosetting resin containing fibre reinforcement between the corrosion-resistant thermoplastic and the steel and curing the thermosetting resin. Suitable corrosion-resistant thermoplastics are polymers of halogen containing vinyl monomers such as polyvinyl chloride. Suitable thermosetting resins are polyester or epoxy resins, which may contain a catalyst system enabling curing to take place at room temperature. A suitable catalyst is methyl ethyl ketone peroxide with cobalt naphthenate accelerator. A suitable fibre reinforcement is glass fibres. The steel surface may be cleaned first by sand blasting. The corrosion resistant thermoplastic resin may be applied in the form of a rigid sheet whose surface may be given a preliminary treatment with a solvent to obtain an improved bond between it and the thermosetting resin. A coating of polyester resin may be applied to the steel surface and to the thermoplastic sheet. The bulk of the polyester resin together with the fibre reinforcement may be applied to either surface or partly to both. The coated surfaces are then brought into contact and the thermosetting resin is cured. The thermoplastic sheet may be rolled on to the steel sheet. Specifications 907,768 and 907,769 are referred to.
Patent GB-199635-A (GB)
Title: Improvements in and relating to couplings for railway and like vehicles
IPC: B61G3/04
Filed: 1922-08-15
Abstract: 199,635. White, A. E., (National Malleable Castings Co.). Aug. 15, 1922. Couplings, automatic. -In a Janney coupling, the lock operating-gear comprises a link 9 pivoted to the lock and having a recess 17 in its upper end in which works a stop 16 fixed to the upper link 8. In the locked position of the coupling, Fig. 1, the links can only take up the position shown, in which the link 9 underlies a portion of the coupler head to prevent creeping of the lock. The lugs on the coupler head which take the knuckle hinge-pin D are provided with upstanding ribs 21<b> which engage in corresponding recesses 20<b> on the knuckle so as to take the lateral as well as direct stress from the pin D when the coupling is in draught or buffing. Flats on the ribs 21b engage corresponding flats in the recesses 20b to limit the swing of the knuckle. The lower lug of the coupler is extended downwardly under the hinge-pin to take a flat pin 28 which supports the pin D from below. Fig. 3 shows the lock 2 in its " lock set " position in which the lock has been raised by hand until the stem 3 of the lock rests on the ledge 31 of the coupler head. When the knuckle B is pulled open, the tail of the knuckle passes under the lock body 2 and unseats the leg 3 from the ledge 31 so that it drops into the groove 33. When automatic coupling occurs the tail of the knuckle pushes the leg 3 of the lock down the groove 33 until it enters the hole 30 in the bottom of the coupler, when the body 2 of the lock drops between the tail of the knuckle B and the guard arm side of the coupler A. A vertical V-shaped recess 24, Fig. 5, is provided on the guard arm side of the coupler behind which the body 2 of the lock engages so that the lock will not be dragged out of .its cavity in the coupler head under excessive draught.
Patent GB-1059513-A (GB)
Title: Electromagnetic contactor
Inventor: PETTIT DORN LEROY
IPC: H01H51/06
Filed: 1964-05-29
Abstract: 1,059,513. Electromagnetic relays. SQUARE D CO. March 16, 1965 [May 29, 1964], No. 22271/64. Heading H2B. Contact bounce is reduced by arranging that the engagement of the fixed contact 77 with the movable contact 68, which is carried at one end of an arm 57 centrally supported by a rod 45 movable with the plunger armature 47, occurs at a position offset from the axis of the rod 45 so that the arm and rod tilt due to the reaction force between the contacts and the rod frictionally engages a guiding bush 46. The other end of arm 57 is connected by a strap 76 to a terminal member 72 mounted with the other terminal members 73, 74 in a stepped insulating block 38. The coil 28 is held in position between the arms of a magnetic frame by a resilient member 44. The armature 47 has a recess in its lower end which receives a plurality of washers 50, a shock absorbing 0-ring 51 and a contact pressure spring 54 (Fig. 4, not shown) which urges a collar 52 of the rod into engagement with the washers to provide a lost motion connection between the armature and rod. The armature may operate a change-over contact set as shown, or a normally open set. In Figs. 6-9, not shown, three contactors are mounted together and electrically connected to control a series motor.
Patent GB-152839-A (GB)
Title: Improvements in and relating to domestic fire grates or cooking ranges and the like
IPC: F24B5/06
Filed: 1919-09-11
Abstract: 152,839. Miller, W. E. Sept. 11, 1919. Cooking-ranges.-In a cooking-rango of the type comprising a boiler C behind a grate Band an oven A above it, a damper D, co-operating with apertures h, i in a back plate g, may be moved so as to direct the fire gases under the boiler and through the aperture h to the oven bottom flue, or over the curved top of the boiler and through the aperture i to the oven bottom flue, or, when both of the apertures h, i are closed, through apertures n to flues under side hobs, and thence to the side oven flues through apertures normally closed by small sliding dampers k. Beneath the oven is a sliding shield plate r, which may be drawn forward to serve as a utensil support and also, with its downwardly extending sides, as a hood for the fire. The sliding hotplate f has an upward rear extension f<1> and normally provides a closed fire, but when pushed back gives an open fire.
Patent GB-1386308-A (GB)
Title: Programme control for perforating machines
IPC: B26D5/30
Filed: 1972-05-12
Abstract: 1386308 Automatic control of machine tools L SCHULER GmbH 12 May 1972 [14 May 1971] 22371/72 Heading G3N A machine for automatically making holes in sheet or strip material is controlled by a punched tape which is mechanically driven from a part of the machine to enable the coded instructions on the tape to be consecutively read by a reader which supplies instructions to the machine. In operation a feedback signal from the machine indicates that a required machine function has been completed and the next instruction is taken as long as the feedback signal has been received within a time interval corresponding to the cycle of movement of a number for making a hole in the material. It is stated that a counter may be provided whereby the machine will repeat the same operation until the counter is empty. Additionally if the tape reader reads instructions that do not apply to a machine operation it will cause the tape to be advanced until a machine instruction is read but if this causes the time interval to be exceeded then the machine will be stopped.
Patent GB-991877-A (GB)
Title: Improvements in or relating to dual-voltage alternating-current electric motors having an auxiliary-phase winding
Inventor: GILES ALAN ROBERT DOUGLAS
IPC: H02K17/08
Filed: 1960-06-27
Abstract: 991,877. Induction motors. PLESSEY CO. Ltd. Aug. 31, 1961 [June 27, 1960], No. 22440/60. Heading H2A. In a two-voltage, single-phase induction motor, the main windings 1, 2 and the auxiliary phase windings 3, 4 are connected with capacitors 11, 12 as shown for operation on 230 V. whilst the two circuit groups are connected in parallel for use on 115 V. Fig. 2 (not shown) relates to contact cards for providing the necessary circuit changes.
Patent GB-518868-A (GB)
Title: Improvements in or relating to cylinder structures for internal combustion engines
IPC: F02F1/16
Filed: 1938-07-28
Abstract: 518,868. Cylinders. RICARDO, H. R. July 28, 1938, No. 22447. [Class 7 (ii)] In a water-cooled cylinder block, the joint A between the cylinder head 18 and the cylinder jacket 10 is located at a lower level than the joint B between the head and the liner 13 to accommodate passages 32 for cooling water flowing between the liner and head jackets, the passages 32 being preferably arranged.to increase the cooling effect adjacent the exhaust passages. The joints A, B are provided respectively with a soft metal packing protected by a ring 30, on a hard metal packing, e.g., of copper.
Patent GB-506238-A (GB)
Title: Improvements in smoking pipes
IPC: A24F1/16
Filed: 1938-07-28
Abstract: 506,238. Tobacco pipes. HOSTETLER, L. July 28, 1938, No. 22497. [Class 130] A nicotine-trapping device in the stem of a pipe comprises interconnected discs, the discs 18, 19 engaging the bore of the stem throughout their periphery and having a central hole 22, while the discs 20, 21-engage the bore only over a portion of their periphery, so that smoke passes around their edges. As shown, the discs are carried by a pair of parallel arms 17 secured to a slit and compressible plug 14 fitting in the stem and formed with a nipple 16 engaging the mouthpiece, a circumferential flange 13, and a nipple 15 projecting into the stem bore. The discs 20, 21 are oval in shape.
Patent GB-160861-A (GB)
Title: Improvements in and relating to paper making machinery
IPC: D21F1/32
Filed: 1919-09-13
Abstract: 160,861. Walmsley & Co., Ltd., C., and Law, J. Sept. 13, 1919. Felts; wet presses. - The woollen felts 1 of paper-making machines are washed by a jet 3 of water issuing from a slit 4 in a rotatably adjustable tube 5, within which is a perforated tube 6. The width of the slit 4 may be adjusted, for example by a concentric slotted tube rotatable within it.
Patent GB-1104733-A (GB)
Title: The preparation of polyether polyols useful in the preparation of polyurethane foams
IPC: C07F5/06
Filed: 1966-05-20
Abstract: A rigid closed-cell polyurethane foam is obtained by reacting an aromatic polyiso cyanate in the presence of a blowing agent with a polyether polyol of hydroxyl number 400-600 obtained by bringing propylene oxide into contact with a mixture of triethanolamine and, as co-initiator, sucrose, sorbitol or a -methyl glycoside, the co-initiator being present in an amount of 55 to 575 parts by weight per 100 parts by weight of triethanolamine and the temperature of the mixture being maintained at 60-140 DEG  C.  The preferred polyisocyanate is tolylene diisocyanate or a mixture of its monomers and the foaming agent may be a saturated aliphatic halocarbon or carbon dioxide.  An activator or catalyst, e.g. an organo-tin compound, an organic tin salt or a mixture thereof, and a dispersing agent or emulsifier, e.g. polyethylene oxide phenyl ethers, blends of polyalcohol carboxylic acid esters, oil-soluble sulphonates and siloxane-oxyalkylene block copolymers, may be present and the foam may also contain a cross-linking agent, an auxiliary blowing agent and pigments.ALSO:Polyether polyols are obtained by bringing propylene oxide into contact with a mixture of triethanolamine and, as co-initiator, sucrose, sorbitol or a -methyl glycoside, the co-initiator being present in an amount of 55 to 575 parts by weight per 100 parts by weight of triethanolamine, the temperature of the mixture being maintained at 60-140 DEG  C. and the contacting of the mixture with propylene oxide being continued until a polyether polyol having a hydroxyl number of 400-600 is obtained. The reaction is preferably effected in the absence of oxygen at atmospheric or superatmospheric pressure and after reaction the product may be stripped with nitrogen, filtered and treated with an antioxidant, e.g. di-t-butyl-4-methylphenol.
Patent GB-989876-A (GB)
Title: Storage apparatus for cable apparatus-housings
IPC: B65H75/36
Filed: 1961-06-22
Abstract: 989,876. Laying cables. WESTERN ELECTRIC CO. Inc. June 22, 1961 [July 1, 1960], No. 22630/61. Heading H2C. [Also in Division B7] A cable is prepared by laying by storing the integral repeater or tube housings in a vertical stack. Each hold in a cable-laying strip has a central core 7 about which the cable 2 is coiled. The cylindrical core 7 is formed in two parts divided by a vertical gap 10, each part comprising rods 9 and two end columns 11. In the central gap 10 is a rack 17 on which holders 18 support the housings 6. Each holder 18 is pivoted on a bar 17 and counterbalanced so that when not in use it swings into an upright position and leaves a clear path for lower housings 6 to rise through the slot 10 as the cable 2 is paid out. The supports 18 may take the form of flat brackets or of shelves, each suitably counter-balanced. Alternatively they may be spring-retracted horizontal members latched in the extended position by the weight of the housing. The central support may take the form of two sets of rods 31 each flanked by wider rods 32 and between the two sets a shaped partition 33 so that housings 30 rest securely each side of the partition 33. The housings 30 rest on counterbalanced supports pivoted on the rods 31, and the partition 33 is built up from separate sections bolted together, and to the floor, by brackets 34. The top of the central core 7 is capped by a structure (Figs. 6 and 7, not shown) with a spring-loaded gate through which the cable can rise.