baber/WOPTO huggingface dataset:
Patent GB-1049274-A (GB)
Title: A method and apparatus for straightening rods and wires
IPC: E04C5/02
Filed: 1965-06-11
Abstract: 1,049,274. Straightening; stretching. FERROTEST G.m.b.H. June 11, 1965 [June 11, 1964], No. 24902/65. Heading B3E. A method of straightening rod or wire comprises initially straightening the rod or wire by bending the same back and forth several times and thereafter longitudinally stretching the rod or wire along a straight path substantially to straighten the same. Wire 11 from a coil 13 passes through a roller-type straightening device 14, at least one of the rollers of which may be driven and the bearing surfaces of which may be of an elastic plastic material, on to a brake drum 15 then over a drawing drum 17 driven slightly faster than the brake drum so as to stretch the wire therebetween, and then to means 18 for cutting the wire into lengths. Alternatively, the drum 15 may be replaced by braking rollers, through which the wire passes, positioned before or after the straightening device 14, and instead of being cut into lengths he wire may be coiled on a large diameter turnable without being permanently deformed hereby. Again an intermittently operating apparatus comprises, Figs. 3-6 (not shown), a fixed clamp positioned after the straightening device 14 and a movable clamp situated after the fixed clamp and movable longitudinally therefrom to stretch the wire between the clamps. After stretching the wire is fed by rollers from the now-open clamps to cutting and stacking means. The jaws of the clamps may be lined with elastic material. The jaws of at least one of the clamping devices may be movable longitudinally to prevent overstretching, the jaws being formed with racks engaging gears coupled to torque-limiting devices. An alternative form of clamp jaw, Figs. 5, 6 (not shown), includes an element fixed to the clamp and successively smaller elements mounted on the clamp to move against spring means so as to allow the clamped part of the wire to be stretched. The wire may be twisted during or after stretching.
Patent GB-915899-A (GB)
Title: Improvements in or relating to the electrolytic preparation of alkali metal amides
IPC: C01B21/092
Filed: 1960-07-18
Abstract: 915,899. Electrolytic production of alkali metal amides. HOUILLERES DU BASSIN DU NORD ET DU PAS-DE-CALAIS, and COMMISSARIAT A L'ENERGIE ATOMIQUE. July 18, 1960 [July 22, 1959], No. 24941/60. Drawings to Specification. Class 41. Alkali metal amides are prepared by electrolysing a solution of an alkali metal, such as potassium, rubidium or caesium, in liquid ammonia in a closed vessel at a temperature higher than the boiling-point of liquid ammonia at atmospheric pressure, i.e. - 33‹ C.; preferably within the range 10‹ to 30‹ C., and at the autogenous pressure thereof. Preferably, the concentration of the solution is at least 100 g./l. of metal in liquid ammonia, and the current density is 0.10 to 0.15 amp./sq. cm. The conversion of the metallo-ammoniacal solution into the amide may be effected by carrying out non- continuous electrolysis using an electrolytic cell suitably adapted to rotate about a horizontal axis to rapidly isolate the solution from the electrodes, or by leaving the solution for a long time in the electrolyser. Prior art discloses the electrolysis of a solution of the bromides, cyanides, carbonates or chlorides of K, Rb or Cs in liquid ammonia.
Patent GB-638314-A (GB)
Title: An improved composition of matter
IPC: C08L95/00
Filed: 1947-09-11
Abstract: A composition suitable for flooring is prepared by dehydrating an aqueous emulsion or a mixture of aqueous emulsions of bitumen and polyvinyl acetate with a powdered inorganic material which sets irreversibly on moistening with water, the bitumen being of such a nature that it will mix with the polyvinyl acetate to produce a composition which can easily be trowelled.  The bitumen may be a natural or artificial product, modified, if necessary, by the addition of petroleum residues, aromatic extracts, or heavy mineral oil, to give a penetration value of 60-500.  The inorganic material may be Portland, titan, Roman, sorel, Keene's, parian or Scott's cement or cement powder, and reinforcing, shrinkage-controlling, and colouring agents may be added.  The emulsion or mixture of emulsions is mixed in an edge-runner mixer with asbestos floats to coat each fibre with the bitumen and polyvinyl acetate and form a porridge-like mass which is added to the mixture of cement and other agents.  If the composition is to be stored, a small amount of a fungicide is added.ALSO:A composition suitable for flooring is prepared by dehydrating an aqueous emulsion or a mixture of aqueous emulsions of bitumen and polyvinyl acetate with a powdered inorganic material which sets irreversibly on moistening with water, the bitumen being of such a nature that it will mix with the polyvinyl acetate to produce a composition which can easily be trowelled.  The bitumen may be a natural or artificial product, modified, if necessary, by the addition of petroleum residues, aromatic extracts, or heavy mineral oil, to give a penetration value of 60-500.  The inorganic material may be Portland, titan, Roman, sorel, Keene's, parian, or Scott's cement or cement fondu, and reinforcing, shrinkage-controlling and colouring agents may be added.  The emulsion or mixture of emulsions is mixed in an edge-runner mixer p  with asbestos floats to coat each fibre with the bitumen and polyvinyl acetate and form a porridge-like mass which is added to the mixture of cement and other agents.  If the composition is to be stored, a small amount of a fungicide is added.
Patent GB-258095-A (GB)
Title: Improvements in or relating to work-bench vices
IPC: B25B1/10
Filed: 1925-10-07
Abstract: 258,095. Chris, A. Oct. 7, 1925. Addition to 193,768. Vices. -The workbench vice of the parent Specification is provided with a pair of depending flanges 4 forming a box-like structure to receive the nutmechanism of a quickrelease gear. A pair of holes 8 receive runners secured to the front jaw and to a cross bar engaging a screw. The front flange 4 may constitute a jaw and may carry a facing of fibre, wood, &c. to provide the actual working surface.
Patent GB-315136-A (GB)
Title: Improvements in or relating to electric irons
IPC: D06F75/36
Filed: 1928-08-31
Abstract: 315,136. Chesterton, Jones, & Co., Ltd., and Davidson, F. F. D. Aug. 31, 1928. Hand-irons.-A stand or rest for an iron comprises an integral extension of the cover projecting beyond the rear edge of the iron base. In one example shown in Fig. 3, a pressed or stamped sheet-metal or cast-metal cover a has an integral lug b which is of substantially the same width as the bottom rear edge of the cover. It may be curled as shown at c and a name plate may be attached. A tongue e projecting from the connector sheath f may be provided to co-operate with the lug in supporting the iron. In a modification, Figs. 4 and 5, the cover a is extended to form hollow horns h of which the under sides may be closed by a plate j which may be an integral part of the pressing or a separate plate secured by welding.
Patent GB-834491-A (GB)
Title: Gas control valves
Inventor: HAWKES STANLEY ARTHUR
IPC: F16K31/44
Filed: 1957-08-08
Abstract: 834,491. Valves. RADIATION Ltd. July 16, 1958 [Aug. 8, 1957], No. 25006/57. Class 135. A gas control valve comprises a principal spring-closed poppet valve 14 for controlling gas flow into the inlet chamber 6 and a secondary spring-closed poppet valve 21 for controlling the flow of gas from the inlet chamber to the outlet chamber 7, the principal valve being actuated by means of a cam 16 on a manually operable spindle 25 and the secondary valve by an axially slidable stem 33 operable by a thermostat 36 in screwthreaded connection with a nut 29 having a slidable but non- rotatable connection with the spindle 25 and a lever 40 for transmitting movement of the nut caused either by the thermostat or the operating spindle to the valve. The actuating knob 47 is slidably but non- rotatably connected to the operating spindle by a flat 49 and at its inner end has a projection 55, which in the closed position of the knob engages between two projections 53, 54 (not shown) so that the knob must be pushed in against the action of spring 52 before it can be turned; in addition, the projection 53 is of such height that the knob can only be turned from the closed position in one direction. The operating spindle is sealed in the body by means of a packing ring 43 held in position by. spring 44.
Patent GB-1070871-A (GB)
Title: Improvements in or relating to electrical apparatus
IPC: H01F27/30
Filed: 1964-06-17
Abstract: 1,070,871. Transformers and inductors. LICENTIA PATENT - VERWALTUNGSG.m.b.H. June 17, 1964 [June 18, 1963], No. 25054/64. Heading H1T. An end support member for a cylindrical winding of a transformer or reactor is formed by bending into a circular or arc-shaped formation an insulating rod, strip or plate member 61 (Fig. 11) having transverse slots 62 therein. The support may be of pressboard or blockboard and may have V-shaped slots on one or both sides (Figs. 7 and 8, not shown). It may be tapered in width on one side, possibly with a step in that side (Fig. 9, not shown) by an amount corresponding to the winding pitch. The rod strip or plate may be held in its bent shape on the winding former &c. by wrappings of insulating strip disposed in shallow grooves in its outer surface or by sticking it to the former directly or by means of adhesive foil. It may be formed by sticking slightly tapering blocks of insulating material 68 (Fig. 12, not shown) to one or both sides of a thin backing strip 69. Grooves for the insulating wrappings may be formed by sticking on further strips 70. Two or more support members may be arranged one inside the other and enclosed in an insulating wrapping.
Patent GB-774811-A (GB)
Title: Improvements relating to filters for fluids (liquid and gaseous)
IPC: B01D46/00
Filed: 1954-09-14
Abstract: 774,811. Filtering liquids. STEVENS, R. J. Aug. 19, 1955 [Sept. 14, 1954], No. 25093/54. Class 46. [Also in Group XXVIII] . In an edge filter having inlet and outlet sides for the fluid to be filtered and consisting of a pack of filter plates in face to face relationship with fine interfacial flow passages, clamps for holding together the filter plates, the inlet edges of the plates forming an edge face where part of the filtering action occurs, the balance being in the interfacial passages, and the bounding edges of the plates constituting entrances to the filtering medium, electro-magnetic means produce a momentary shock at each current impulse to disturb the edges of the plates and dislodge therefrom any accumulations of dirt tending to clog the entrances or to prevent the formation of such accumulations. The filter unit A comprises a pile of discs of iron, nickel or other magnetic material each formed with two sets of radial slots OL, IL, Fig. 3, and with the intervening material or strips S channelled to provide filter passages n, o, with an intervening plain portion p. One set of slots has T-shaped heads ; the slots of the other set are curved at their inner ends to meet the circle on which they end tangentially. The pile is held between feed and drain plates B, C themselves held between top and sump plates D, E clamped together by a bolt G extending therethrough from a bottom plate F to a cup-shaped outlet H for filtered oil. Oil enters by an inlet I on the top plate D and flows through an aperture J therein to an annular channel K in the underside thereof, whence it passes through distributer ducts L to the slots IL. After traversing the channels n, o to the slots OL, the oil escapes by outlets N<SP>1</SP> to an annular channel O in the plate B and thence to the outlet H. Separated particles descend ducts U to a sump s in the plate E. A magnet winding is threaded through a ring of holes m in the pile A and exterior to the plates B, C, pulsations through the winding vibrating the pile to dislodge and feed away separated particles. The magnetic flux may vary in frequency and the vibrations be of very small dimensions such as those due to magneto striction and have supersonic frequency. Modified forms of the filter plates have the slots OL, IL arranged reversely for outward flow or the slots are formed as divided concentric circles. The vibrations may be produced externally of the filter and be mechanically communicated thereto. In other forms the filter comprises a conducting coil of wire through which electric current is passed, filtering taking place between the convolutions, or parallel wires which may be of different lengths and thicknesses may be used. The pile A may be replaced by a strip wound edgewise into a flat coil.
Patent GB-1334625-A (GB)
Title: Rotary-valved cryogenic apparatus
IPC: F25B9/14
Filed: 1971-04-19
Abstract: 1334625 Refrigerators CRYOGENIC TECHNOLOGY Inc 19 April 1971 [2 April 1970] 25155/71 Heading F4H In a cryogenic refrigerator or liquefier operating in substantially the same manner as described in Specification 938,182, the flow of H.P. fluid into and withdrawal of L.P. fluid from the apparatus is controlled by a rotary valve which is readily interchangeable to alter the timing of the cycle. The refrigerator comprises a displacer 22 which is reciprocated within a fluid-tight enclosure housing 15 to define an upper warm chamber 22 and a lower cold chamber 24 of variable volumes which communicate with each other through a regenerator 40 within the displacer. The displacer is mechanically driven by a motor 136 via a scotch yoke 63 to the crank 71 of which is linked the rotary valve 85 through a pin 86 to be rotated by a main drive shaft 75 of the motor. The rotary portion of the valve is formed of a ring moulded from a synthetic resin having a H.P. fluid passage (95) moulded in one surface with connections 96, 97 with the valve periphery so as to be continuously supplied with the H.P. fluid from a compressor (not shown) via passages 145, 149. The valve also comprises a L.P. passage (100) having connections (101, 102) with a central opening (103) and a sealing surface 105 to mate with a stationary valve plate 110 having a fluid passage 116 to register with an angled passage 118 opening into the warm chamber 23 of the refrigerator so as to provide fluid communication alternatively with the H.P. and L.P. passage in the valve as it is rotated. Cold exhaust fluid is discharged via passages 114, 128, 130, 134 and 135 so as to flow around the motor as a coolant and finally to a conduit 142 for return to a L.P. reservoir e.g. the inlet of a compressor. The flow of H.P. fluid into the refrigerator is stopped prior to the displacer achieving its uppermost position by the design of the rotary valve and the fluid is discharged when the displacer reaches its uppermost position and while it travels downwardly to a predetermined level.
Patent GB-923001-A (GB)
Title: Flexible cutting tools
IPC: B23D51/12
Filed: 1958-08-06
Abstract: 923,001. Hand saws. DAFILES Ltd., and C. J. LONG. Aug. 4, 1959 [Aug. 6, 1958], No. 25182/58. Class 61. A hack saw comprises a frame 7 (Fig. 2) having legs 8, 9 normally disposed a distance apart greater than the length of the flexible cutting blade 1, one end of which is adapted to slide over the leg 9 to an operating position in which it is tensioned. One end 3 of the blade 1 is flattened for engagement in a slotted end of the frame leg 8 and the other end is formed as a loop 4 which slides over the leg 9 to engage a notch at its end.
Patent GB-873286-A (GB)
Title: Adjustable optical prism system for producing variation in size of images
Inventor: GOSSELIN CHRISTOPHER CARTERET
IPC: G02B13/10
Filed: 1957-08-09
Abstract: 873,286. Optical prism systems. FARLEY. M. P. Aug. 9, 1957, No. 25230/57. Class 97(1) An optical system for enlarging or reducing by an adjustable amount the size of an image formed by rays passing therethrough includes several prism elements which form two interconnected pairs of prisms, each pair forming a unit, the elements and units being so arranged and connected together that at all times the deviation due to one prism of each pair is diametrically opposed to the deviation due to the other prism of that pair, while the deviations of the prisms of one unit are maintained at right-angles to the deviations of the prisms of the other unit. In this system, the pairs of prism elements or of prisms in the individual units are connected together for simultaneous angular movement in opposite directions, the connections being effected by means comprising pulleys, cords encircling the pulleys and movable members to which the cords are attached so that an angular movement of one prism element or prism in one direction is accompanied by an angular movement of the other prism element or prism in the opposite direction. As shown in Fig. 1, two prism units 10, 11  are made up of prisms 12, 14 and 16, 18 rotatably mounted about axes 15, 17 and 19, 29, the refracting edges of the prisms in unit 10 being perpendicular to those in the unit 11. Image-forming rays passing through each prism unit will be deviated in planes perpendicular to the refracting edges of the prisms by an amount depending upon the mutual inclination of their refracting faces. The prisms are preferably of circular form and are housed in a stepped tube 30, one in each section and pulleys 32, 33 and 34, 35 are fixed to each rotation axis. A pulley operating member 36, 54 has attached thereto cords which pass around the pulleys and each operating member is connected to a rotatable sleeve 46 so that, on rotation of sleeve 46 relatively to the stepped tube 30, the pulleys of each pair, and therefore the prisms attached thereto, will be rotated in opposite senses and by equal amounts to provide the required variation in image size. In a second embodiment, each prism is maintained at a fixed inclination to the optical axis and consists of two prism elements which are relatively rotatable in opposite senses to provide the required image size variation.
Patent GB-806723-A (GB)
Title: New pharmaceutical compositions
Inventor: BLAGG GEORGE LEVER
IPC: A61K9/00
Filed: 1955-09-02
Abstract: Dry solid pharmaceutical compositions comprising at least one non-toxic orally-acceptable fat at least 70 per cent of the particles of which are less than 20 microns in size in the presence of at least one non-toxic orally-acceptable emulsifying agent are prepared by freeze drying or spray drying the corresponding non-toxic orally-acceptable fat emulsions.  These emulsions used as starting materials may be prepared from liquid p  paraffin, coconut oil, corn oil, arachis oil, butter oil, olive oil or cod liver oil.  The emulsifying agent may be gelatine, acacia, tragacanth, methyl cellulose, sodium carboxy-methylcellulose, polyvinylpyrrolidone, polyvinyl alcohol, alginates, egg lecithin, agar, sorbitol, sorbitan mono-oleate, polyoxyethylene sorbitan tri-oleate or the condensation product of ethylene oxide with 8-10 molecular proportions of octylcresol. As non-toxic orally-acceptable excipients there may be added sodium chloride, sodium citrate, potassium chloride, sodium dihydrogen phosphate, disodium hydrogen phosphate, sucrose, dextrose, dextran, casein hydrolysate, and mixtures of amino-acids or enzyme digested protein optionally with the addition of vitamins.  The dry solid composition obtained by drying the fat emulsion can be reconstituted to form a nontoxic orally-acceptable emulsion in which the small size of the fat particles in the original emulsion is retained and which is stable by the addition of an aqueous non-toxic orally-acceptable medium such as water or milk.  It is preferred that at least 70 per cent of the fat particles present are not greater than 3 microns in size.  The preferred solid composition contains by weight 50-90 per cent fat, 3-25 per cent emulsifying agent, 8-30 per cent carbohydrate.  A particularly useful composition is one containing about 55 per cent by weight of fat.
Patent GB-465248-A (GB)
Title: Improvements in or relating to roller mills for pulverulent and like materials
IPC: B02C4/40
Filed: 1936-09-16
Abstract: 465,248. Roller mills. BIRD, H. W., and COATES BROS. & CO., Ltd. Sept. 16, 1936, No. 25265. [Class 59] In a roller mill in which treated material is removed from one of the rollers by a scraper blade, an auxiliary roller is arranged parallel to the mill roller and located on the underside of the scraper for preventing any of the material which has not been scraped off the roller from falling from the undersurface of the scraper and returning it to the mill roller. As shown a scraper 5 removes the ground material from the last roll 3 of a mill and a roller 7 is adjustably arranged under the scraper to replace on the roll any material passing under the scraper. The roller 7 may be driven from the mill roll 3.
Patent GB-767415-A (GB)
Title: Improvements in insulator strings for high voltage conductors
Inventor: COATES WILLIAM ANSELM
IPC: H01B17/42
Filed: 1954-08-31
Abstract: 767,415. Insulators. METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 22, 1955 [Aug. 31, 1954], No. 25289/54. Class 36. The capacitance of the sections of an insulator string for supporting a high voltage conductor from an earthed structure is graded by making the individual insulator sections of compositions of different dielectric constant. The insulator sections may be of ceramic material consisting of or incorporating titanium dioxide, the proportion of which is selected so as to give the required permittivity to each section. Alternatively the sections may be made from different types of glass. Specification 618,484 is referred to.
Patent GB-1533073-A (GB)
Title: Butterfly valve
IPC: F16K1/22
Filed: 1977-06-17
Abstract: 1533073 Valves TOMOE TECHNICAL RESEARCH CO 17 June 1977 [3 Aug 1976] 25422/77 Heading F2V The plate 10 of a butterfly valve includes one or more annular flanges 71, 72 positioned inwardly of the extreme outer periphery of the plate and extending laterally from the plate, said flanges serving to reduce fluid forces impinging on an annular seal 4 when the valve is partially open.
Patent GB-221103-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/00
Filed: 1923-10-12
Abstract: 221,103. Burgess, E., and Smith, H. G. Oct. 12, 1923. Shades.-A lamp shade is made of proofed canvas, buckram or similar material, covered and lined with a material such as silk or satin and is pulled to shape over a metal block and hardened by pressing it in a blocking machine. Specification 1435/87 is referred to.
Patent GB-1269755-A (GB)
Title: Improvements in or relating to toy building bricks
Inventor: JENG CHANG
IPC: A63H33/08
Filed: 1970-05-27
Abstract: 1,269,755. Toy building brick. LION INDUSTRIAL CO. Ltd. 27 May, 1970, No. 25437/70. Heading A6S. A toy building brick comprising a rectangular parallelepipedal hollow body open at one face and having projections 8 on the opposed face arranged symmetrically in two rows and spaced so that they may enter the opening of another brick and engage frictionally the inner face of the two side walls 5 and 6 is characterised by two internal longitudinal walls 11, 12 which are connected to end walls 3 over a distance less than their whole height 13. The internal walls are spaced transversely such that they may be resiliently deformed when a projection is engaged between a side wall and an internal wall. The projections are preferably of a height such that their leading ends will stop short of a line joining the ends of the connecting portions 13 and the walls are preferably of a height which stops short of the plane of the opening of the body. They may be divided into a number of longitudinal sections by means of recesses 15 in the walls. Projections 16 may be provided in side walls 5 and 6 to facilitate the location of the projections 8.