baber/WOPTO huggingface dataset:
Patent GB-312323-A (GB)
Title: Improvements in or relating to electric high tension condenser type bushing insulators
IPC: H01B17/28
Filed: 1929-05-23
Abstract: 312,323. Schroeder, R., Schroeder, M., Levis, S., Levis, R., Levis, S., and Jaroslaw, E., (trading as Jaroslaws Erste Glimmerwarenfabrik in Berlin). May 24, 1928, [Convention date]. Carrying conductors through partitions.-In an oil-filled condenser bushing, the internal bushing is made of short length so that the flash over length of the cover is more than 25 per cent greater than the flash over length of the internal bushing when tested in air. In the construction shown, the short internal bushing 1 is preferably formed with non-projecting conducting insertions 2, and and an oil filling is contained in a space 4 enclosed by a cover 3. The conductor 8 passes centrally through the bushing 1 and a metal end cap 9 closes the bushing. Flanges 6 of the insulator hold the cover 3 in position. In order to render the electric field uniform along the surface of the cover, a cap of large curvature, or a. sharpedged projecting cap or ring may be fitted to the cover.
Patent GB-542105-A (GB)
Title: Removing bismuth from lead
IPC: C22B13/06
Filed: 1940-11-01
Abstract: 542,105. Refining lead. AMERICAN SMELTING & REFINING CO. Nov. 1, 1940, No. 16002. Convention date, Nov. 7, 1939. [Class 82 (i)] A process for removing, bismuth from lead comprises effecting at least a preliminary removal of bismuth from a molten bath of lead, for example, by the use of alkali or alkaline earth metals, and effecting a further separation of bismuth by treating the molten bath, preferably at 630-640‹F., with an organic material which decomposes at the temperature of the bath to yield carbon, the bismuth being thereby converted into a dry dross which is removed from the bath. The organic re-agents may be proteins such as glue, blood, or casein, carbohydrates such as gum arabic, starch, sugar, sawdust or flour or acids such as tartaric acid.
Patent GB-554039-A (GB)
Title: Improvements in or relating to devices for cooling the exhaust gases of internal combustion engines
IPC: F01N3/05
Filed: 1941-12-12
Abstract: 554,039. Cooling and silencing exhaust. DAVIES, R.. and SEAFIELD, F. A. Dec. 12, 1941, No. 16027. [Class 7 (ii)] [Also in Group X] A device for cooling and silencing the exhaust comprises a number of pipes 13 .. 16 surrounding the exhaust pipe 12 so that a flow of air is induced between the pipes, the pipes being made non-convergent in the direction of flow of the gases, and extending one beyond the other as at 19. The annular space between adjacent pipes may be made progressively narrower from the exhaust pipe outwards. The front ends of the pipes 13 .. 16 may be connected to an air reservoir 20 formed with staggered and louvred openings 22, 23. The pipes may be adjustable axially by means of screw connections. The exhaust pipe 12 and the pipe 16 may be formed with expansion chambers 11, 25 respectively. In motor vehicles. or military tanks, the intake for the air pipes 13.. 16 may be connected to the interior of the vehicles &c. so as to provide cooling and ventilation.
Patent GB-1493724-A (GB)
Title: Beneficiation of titaniferous ores with fecl3
IPC: C01G23/04
Filed: 1975-04-18
Abstract: 1493724 Removing iron from titaniferous materials EIDU POINT DE NEMOURS & CO 18 April 1975 [19 April 1974] 16049/75 Heading ClN Titaniferous materials are upgraded by chlorinating the Fe constituent thereof by intimately contacting the material with FeCl 3  at a temperature of at least 950 C. in the presence of a reductant comprising solid carbonaceous material and/or gaseous CO, the amount of C in said solid carbonaceous material being greater than the stoichiometric amount for conversion of oxygen bound to said Fe constituent to CO 2  and less than or equal to the stoichiometric amount for conversion of said oxygen to CO, the amount of said gaseous CO being at least sufficient to convert the balance of said oxygen to CO 2 . The FeCl 3  may be produced by the oxidation of FeCl 2  with gaseous Cl 2  or a gas containing at least 20% O 2 . A substantial CO 2  partial pressure is preferably maintained in the system. The process may be a cyclic one in which FeCl 2  in the reaction is recycled, oxidized to FeCl 3  and passed over the titaniferous material. The titaniferous material and carbonaceous reductant may be in the form of a fixed or fluidized bed.
Patent GB-1031311-A (GB)
Title: Improvements in shuttles for looms for weaving
Inventor: MILLS DAVID PRITCHARD
IPC: D03J5/00
Filed: 1964-04-18
Abstract: A shuttle has a thread tensioner wherein the tension in each direction of travel is separately adjustable.  The tensioner comprises a fixed plate a1 having a threading slot a3 and a movable plate a2 acted on by two resilient members on springs a so that the thread between the plates is tensioned in one direction of travel by one member a and, in the other direction, by the other member a.
Patent GB-221034-A (GB)
Title: Improvements in and relating to induction motors
IPC: H02K17/18
Filed: 1923-06-22
Abstract: 221,034. Green, H. June 22, 1923. Alternating - current motors; armatures and field magnets, cooling; conductors. - A double squirrel-cage rotor comprises bars A of small section and high resistance connected at one end to a low - resistance ring R and at the other end to a high-resistance ring R', and low-resistance bars B of large section connected to the ring R and at the other end to a low-resistance ring R<2>. Alternate bars F of one or both windings may be extended to act as fan blades.
Patent GB-804478-A (GB)
Title: Improvements in or relating to footwear having metatarsal supports
IPC: A43B23/22
Filed: 1956-05-25
Abstract: 804,478. Boots &c. WRIGHT & CO., Inc., E. T. May 25, 1956 [June 22. 1955], No. 16232/56. Classes 17(1) and 17(2) In making a moccasin shoe where the upper 2, Fig. 13, forms a complete insole 4, a mound 28 is formed as a metatarsal arch support. The upper 2 mulled to a flaccid condition is drawn over a last L and tacked into a depression therein in the metatarsal area to provide subsequently a fullness, and thereafter the moccasin plug is inserted and the last withdrawn. A midsole 26 is premoulded to form a metatarsal mound on its upper grain surface and a pad 30 attached to a shank stiffener 34 is inserted and secured in the corresponding depression. The shank stiffener 34 is secured at its rear end by rivets 40 and has an anti-squeaking piece of adhesive tape 42 between it and the midrole. A thin leather flap may be secured to the exposed part of the pad 30 and it extends a short distance over the midsole. The midsole unit thus formed is sewn by stitching 44 to the insole and an outsole is attached to its margin by stitching 48 the grain surface of the midsole margin being exposed. Sole levelling pressure is then applied as by a roller 50 to force the mound 28 in the midsole to shape the insole into a metatarsal support. The support may be provided in shoes having a construction other than a moccasin.
Patent GB-376911-A (GB)
Title: Improvements relating to machines for grinding or cutting gear wheel teeth
IPC: B23F23/08
Filed: 1931-06-04
Abstract: 376,911. Gear-cutting. GEAR GRINDING CO., Ltd. and BULLOWS, R. J., Anne Road, Handsworth, Birmingham. June 4, 1931, No. 16245. [Class 83 (iii).] Indexing mechanism for gear-cutting or grinding machines of the kind in which the work spindle is associated with rolling mechanism for generating the gear teeth comprises means for exerting a constant turning effort on rack-and-pinion mechanism connected to the work spindle, and either the rack or the pinion consists of a pair of relatively movable parts so that the turning effort serves at a predetermined position to cause relative movement of the rack or pinion parts to effect indexing. The spindle a carrying the workpiece c is mounted on a work slide b and carries a master pinion d engaging a master rack which consists of a stationary part e and another part e<1> which is movable against the urge of a spring f approximately through a distance equal to the pitch. The fixed part may be made from a number of separate pieces clamped in a holder g and the part e<1> fits into a gap in the fixed part e with its end tooth in line with the gapped tooth of the fixed part, Fig. 3. An abutment w limits the movement of the rack part e<1> away from the fixed part. A fluid pressure motor is connected through gears i, j to the work spindle and exerts a continuous torque on the pinion d which tends, during the operative part of the rolling movement, to press the teeth of the pinion d tightly against the rack teeth e to eliminate backlash. Towards the end of the rolling movement the pinion passes on to the rack part e<1> which yields against the spring pressure and allows the work to turn through the required indexing angle. During the return of the work slide the master pinion engages the part e whereupon the part e<1> is returned by its spring. In a modification the rack is formed as shown in Fig. 6 and the pinion consists of a part d. Fig. 4, fixed to the work spindle and a part d<1> which is rotatably mounted on the part d. The pinion portions d, d<1> carry plates t, t<1> respectively and the relative angular movement is limited by pegs u on the plate t engaging slots in the plate t<1>. The movement is resisted by a spring. A fluid pressure motor l exerts a constant torque on a crank shaft o which is connected to the work spindle by gears i, j. In operation, at the end of the operative rolling movement the pinion portion d<1> runs on to the lower rack teeth, Fig. 6, while the pinion d runs off the upper rack teeth thus leaving the spindle free to be turned by the torque of the motor against the action of the spring. This movement indexes the work and during the return movement the part d re-engages its part of the rack while the part d<1> is returned by its spring. In some cases the work and master pinion may be carried on separate interconnected spindles. In another modification the axes of the work spindles may be fixed and the linear component of the rolling movement imparted to the cutter or grinding wheel.
Patent GB-213166-A (GB)
Title: Improvements relating to feeding motions for cloth stentering machines
IPC: D06C3/00
Filed: 1923-06-22
Abstract: 213,166. Norton, D. G., and Norton & Co., Ltd., Sir J. r. June 22, 1923. Addition to 210,187. Tentering.-In feeding motions for electric tentering machines of the kind claimed in the parent Specification, a supporting surface is provided for the cloth at the position where the feelers or detectors are disposed adjacent its opposite edges, a frictional resistance being interposed between the cloth and the supporting surface to resist puckering of the cloth by the pressure of the feelers. As shown, the cloth b passes over a tube d which is situated between the usual rollers e, f and is slotted to receive the feelers a. The faelers are pivoted on the switch panel g supported by a bracket h slidably mounted on the tube and traversed in accordance with the cross movements of the tenter rails bv an arm i secured to the tenter rail j. The tube d is supported in brackets c.
Patent GB-663489-A (GB)
Title: Improvements in and relating to fluorescent lighting units incorporating electro-magnetic switch means
Inventor: MORGAN CECIL LEWIS
IPC: H05B41/39
Filed: 1949-06-20
Abstract: 663,489. Electromagnetic switches. MORVIS ELECTRICAL CO. Ltd. June 13, 1950. [June 20, 1949] No. 16331/49. Class 38 (v). [Also in Group XXXV] A fluorescent lighting unit is provided with an electromagnetically operated mercury switch which reverses the polarity each time the supply circuit is completed or broken, the electromagnet of the switch also operating a 'starter' switch for the unit. The reversing switch comprises two mercury switches 25 tiltable about an axis 18 by means of a pin 22 on a link 23 depending from an arm 6 pivoted at 5 and carrying an armature 10. When the magnet 3 is energized the arm 6 moves slowly down under the control of a dash pot 26 and the pin 22 moves beyond the central projection of a member 21. When the magnet is deenergized the member 21 and the mercury switches 25 are tilted into their other position. Each time the magnet 3 is energized a lug 11. extending from the arm 6 also engages an arm 13 pivoted at 14 and tilts a mercury switch 15 so as to break the circuit there through and strike the arc through the fluorescent tube and a load resistance 28. The magnet remains energized as long as the lamp is alight, but on breaking the circuit elsewhere the reversing switch is actuated and the starter switch closed ready for the next actuation. Specifications 570,092, [Group XL], and 631,215 are referred to.
Patent GB-126403-A (GB)
Title: Improvements in Vertically Sliding and Swinging Sash Windows.
Inventor: STOWE FRANCIS ERNEST
IPC: E06B3/50
Filed: 1917-11-08
Abstract: 126,403. Stowe, F. E. Nov. 8, 1917. Reversible windows.-In windows of the type in which the upper corners of the sashes slide vertically in the frame stiles and the sashes swing outwards on suspension rods 25, the fixed pivots 27 for the rods are located approximately level with and outward from the top of the sash frame and are adjustable in length either by screwing the ends right and left handed. or by using two lengths screwed right and left handed into a socket. Two or more sashes may be mounted in one frame and may be pivoted at each side to one long slipper 21 or to separate slippers rigidly connected together. The shoes 18 on the sashes have two pivot holes so that they may be used on either side. Rollers on the pins 20 may be used instead of slippers. The sashes may be completely reversed for cleaning, and may be locked together by a catch or bolt when closed, or the slippers may be locked in the guides. The construction may be inverted so that the pivots 27 are near the bottoms of the sashes.
Patent GB-836319-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquids
IPC: B05B11/00
Filed: 1958-05-22
Abstract: 836,319. Liquid dispensing apparatus. HILL, S. D. Dec. 29, 1958 [May 22, 1958], No. 16411/58. Class 102(1). A manually operated dispensing apparatus comprises a pump, mounted on a liquid container 31, having a piston 6 working in a cylinder 3 which draws liquid through a tail pipe 33 and delivers it through a spout 19. A finger-grip 1 extends from the end of the cylinder in a downward direction and a second-grip 7, pivoted to the finger grip at 12 extends upwards and engages the piston rod 5. The two grips are normally urged apart by spring means which may be a spring 20 acting on the piston. Alternatively the spring means may comprise a coil spring on the pivot 12 having a limb at each end engaging the finger grip 1 and second grip 7 respectively as in Fig. 3, (not shown).
Patent GB-897748-A (GB)
Title: Process for the concentration of zirconium nitrate solutions
IPC: C01G25/00
Filed: 1960-05-10
Abstract: Aqueous zirconium nitrate solutions containing at least 0,5 lbs. per gallon of dissolved zirconium are further concentrated, without precipitation of solids from the solution, by vaporizing water therefrom and thereafter cooling the concentrated solution to below 175 DEG F., the total period of heating at above 175 DEG F. being less than 60 minutes.  Heating is preferably effected at below 220 DEG F. under subatmospheric pressure of less than 20 inches of mercury.  The final concentration of dissolved zirconium is preferably from 0,6 to 1,6 lbs. per gallon.  The initial zirconium nitrate solution may be prepared by treating a zircon ore with alkali metal hydroxide or carbonate at elevated temperature and extracting the resulting sodium silicate from the water-insoluble zirconium residue, which is thereafter extracted with sulphuric acid to produce zirconyl sulphate solution; silica is removed from such solution by filtering through a filter precoated with diatomaceous earth and the purified zirconyl sulphate solution is then reacted with aqueous ammonia to a pH of 6,5; the resulting slurry is filtered and the solids, after washing, dissolved in nitric acid to produce a solution containing about 0,4 lbs. of zirconium per gallon.  Such solution is fed to a distilling column having a temperature of 200 DEG F. at the bottom and 160 DEG F. at the top.  The concentrated solution is cooled to 100 to 120 DEG F. and contains 0,6 pounds of zirconium per gallon. Hafnium may be removed by countercurrent contact with a paraffinic hydrocarbon and tributylphosphate.  Specification 896,053 is referred to.
Patent GB-809749-A (GB)
Title: Improvements in or relating to the production of moisture-proof sheet wrapping materials
Inventor: PHILLIPS CYRIL HOWARD
IPC: B05D7/04
Filed: 1956-05-28
Abstract: 809,749. Coating webs; water-sensitive sheet materials. BRITISH CELLOPHANE Ltd. May 23, 1957 [May 28, 1956], No. 16459/56. Drawings to Provisional Specification. Class 140. Water-sensitive sheet material is coated with synthetic organic film-forming polymer by applying a thin coating of a liquid aqueous dispersion and, when the coating is still wet, bringing the coated surface of the sheet into contact with the barrel of a water-wet smoothing roller in such a way that at the zone of contact the barrel of the smoothing roller is moving in a direction opposite to that of the movement of the sheet. The method of the invention is particularly applied to coating organic non- fibrous material such as regenerated cellulose with polymers and copolymers of ethylenically unsaturated compounds, but sheets of paper or films of alginic acid derivatives, of protein such as gelatin or casein, of lowly substituted cellulose ester or ether, or of polyvinyl alcohol may be coated. The coating materials may comprise polyvinylidene chloride, polyvinyl chloride or copolymers of ( 1 ) vinylidene chloride plus at least one other ethylenically unsaturated compound such as acrylonitrile; (2) vinylidene chloride plus a mixture of one or more vinyl or substituted vinyl compounds such as methacrylonitrile, a monomeric alkyl ester of acrylic or methacrylic acid having 1 to 5 carbon atoms in the alkyl group (e.g. methyl methacrylate), monomeric vinyl chloride, vinyl acetate or styrene and with or without one or more of such acidic ethylenic compounds as itaconic or citraconic acid or their anhydrides or mesaconic acid and with or without acrylonitrile in addition to the vinyl or substituted vinyl compound or compounds or in substitution for one of the vinyl or substituted vinyl compounds when another is present; (3) vinylidene chloride, acrylonitrile and one or more of the acidic ethylenic compounds such as above ; (4) vinyl chloride and vinyl acetate. The water-wetted roller may be partially immersed in a water bath and excess water may be removed therefrom by a doctor blade. A stationary pad, pressed into contact with the surface of the roller below the surface of the water in the bath, frees the barrel from deposits of polymer. After leaving the smoothing roller the base sheet may be heat-dried and its opposite surface similarly coated, the coatings then being consolidated by further heat treatment. A pair of base sheets may be coated simultaneously in the nip of a pair of horizontal rollers, and may then be separated for subsequent treatment. Jockey rollers mounted on pivoted arms may be provided to vary the arc of contact of the separated base sheets with their smoothing rollers. Specifications 663,645 and 756,851 are referred to.
Patent GB-1470434-A (GB)
Title: Automatic firing weapon
IPC: F41A25/12
Filed: 1974-04-16
Abstract: 1470434 Recoil damping WERKZEUGMASCHINENFABRIK OERLIKON BUHRLE AG 16 April 1974 [4 May 1973] 16459/74 Heading F3C [Also in Division F2] In an automatic weapon, a weapon housing 3 has secured thereto a sleeve 23 whose slidable movement relative to a weapon mount 35 is damped by first coil spring assembly external of the housing, the sleeve having slidable movement relative to a weapon barrel 2 damped by a second coil spring assembly coaxial to the first assembly. The barrel 2 has a yoke 4 fixed thereto, carrying on either side of the barrel a sleeve 17 axially located therein by three tabs 15 in a circumferential groove 18, the tabs entering the groove via a bayonet connection. Each sleeve 17 surrounds a set of spring elements 27 forming the second assembly and a portion of the sleeve 23 which is axially located in a bore in a projection 6 (of two pairs) of the housing 3, in a manner similar to the connection between the sleeve 17 and the yoke 4. The sleeve 23 has a portion 23b which surrounds two sets of spring elements 40, 42 forming the first assembly separated by a ring 37 and a rod 34 axially fixed to the weapon mount 35. The sleeves 17, 23 and the rod 34 act on the spring assemblies via rings 26, 28, 38, 43 so that compression of the spring assemblies occurs for recoil and return movements of the weapon barrel 2 and housing 3 relative to the mount 35. As shown, the spring assemblies are axially spaced; however they can be axially overlapping, Fig. 4, not shown.
Patent GB-698514-A (GB)
Title: Improvements relating to mechanism for transmitting rocking movement
Inventor: FELGATE JACK
IPC: F16K31/18
Filed: 1951-07-12
Abstract: 698,514 Magnetic switches; actuation of switches. TRIST & CO., Ltd., R. July 1, 1952 [July 12, 1951], No. 16581/51. Class 38 (v) [Also in Group XXIV] Mechanism shown applied to the operation a of vane 20 controlling air jets 27 of a pneumatic control system is also applicable to the actuation of electric switches. A float 4 in a steam and water chamber 3 of a of a boiler operates through a lever 11 pivoted at 12 a magnet 5 on a lever 36 pivoted at 7. The magnet 5 interacts with a pivoted magnet 6 outside the chamber through the end wall of a housing 17 which operates the vane 20 or switch. The connecting pin 29 of levers 11 and 36 is carried on a nut 10, adjustable along a screwed part 8 of lever 11 to vary the ratio of movement transmitted, and engages in slots 9 of fork arms 30 of lever 36.
Patent GB-1377796-A (GB)
Title: Synchronized film transport electronics for telecine systems
IPC: H04N3/40
Filed: 1972-04-11
Abstract: 1377796 Film scanning SINGER CO 11 April 1972 [12 April 1971] 16582/72 Heading H4F The operation of a film projector 13 in a telecine system is controlled so as to ensure that film pulldown does not occur during light projection. The light projection, 83, Fig. 5, is synchronized by vertical sync. pulses from generator 17 to occur once each television field, preferably during the vertical retrace time 81 of camera 11, to allow for film pulldown during any part of the field scan. Pulldown is controlled by a controller 19 which receives the vertical sync. pulses from generator 17 which are converted into pulses 85 starting after the end of the vertical retrace time and finishing sufficiently before the start of the next light projection to allow for a film pulldown. Controller 19 also receives a variable speed input and derives therefrom pulses 91 at the frequency of the desired film frame rate. Only when one of these pulses 91 coincides with a pulse 85 due to the vertical sync. signal is a pulldown signal 93 produced. The frequency of rotation of a shutter is controlled to provide the correct light projections.