baber/WOPTO huggingface dataset:
Patent GB-845988-A (GB)
Title: Improvements in or relating to impact forging
Inventor: ATTACH ALEXANDER RIZO RANGABE
IPC: B21J1/06
Filed: 1956-04-06
Abstract: 845,988. Powder metallurgy. PLESSEY CO. Ltd. April 2, 1957 [April 6, 1956; Sept. 21, 1956], Nos. 10541/56 and 28965/56. Class 82(1) Sinterable refractory powder material is formed into a sintered forged body that includes extruded portions by subjecting a cold-compacted body of the powder material to two successive impact-forging operations in each of which the block of material is heated to approximately the sintering temperature while supported above a die mould and is then dropped or rapidly lowered into the die mould and impact-forged therein by a ram tool, sintering conditions being maintained during the forging, the first operation being arranged to produce a block of compact shape and the second operation being arranged to perform the necessary extension to give the body its desired shape. In the apparatus shown in Fig. 7, a pile of cold-compacted bodies c is arranged in a furnace o in which they are heated to sintering temperature by induction coil p. the lowermost body being held in position by fingers r, r<SP>1</SP>. The fingers are retracted to allow the lowermost body to fall into the die cavity in the die a<SP>1</SP> and returned to grip the next body, the furnace is swung on arm q out of the path of forging tool f which then performs the forging operation. In a modification a body being heated above a mould cavity may be supported by a piston which is lowered to carry the body into the mould cavity, the piston forming at least a part of the bottom of the mould cavity. Conduction of heat from the body to the piston is reduced by forming the body with small-area projections on its base. In a further modification the body is heated above the die cavity by direct passage of electric current therethrough, retaining fingers of electrically-conductive material supplying current to the body. Specification 779,128 is referred to.
Patent GB-1373074-A (GB)
Title: Process for recovering mercury
IPC: C25B1/36
Filed: 1973-03-05
Abstract: 1373074 Mercury recovery AKZO NV 5 March 1973 [6 March 1972] 10548/73 Heading C1A A process for recovering mercury from a mercury-containing gas comprises mixing the gas with chlorine and subsequently passing the chlorine-treated gas through a gas-permeable bed comprising a non-porous solid material having a total external surface area which is large in relation to the bed volume and wherein the gas-permeable bed collects the mercury as mercury chloride. The mercury chloride can be obtained by washing the loaded bed with a brine, which may contain chlorine, and electrolyzing the mercury containing brine or, where the packing material is salt, by dissolving the latter in water. Specified bed materials are glass wool, common salt, PVC Reeschig rings together with a glass wool bed, ceramic sadelles together with glass wool. A fluidized bed of particulate material can be used also.
Patent GB-720041-A (GB)
Title: Improvements in and relating to centrifuge apparatus
IPC: B01D45/14
Filed: 1952-04-28
Abstract: 720,041. Stuffing-box substitutes. MAY. HEW, J. H. April 28, 1952 [May 31, 1951], No. 10682/52. Class 122 (5). [Also in Group II] In a centrifugal separator dust is prevented from passing to the cleaned gas collector 25 by a sealing chamber 23 surrounding the rotary tube 20 supplying gas to the chamber. The interior of the separator shown in Fig. 1 is at a slight negative pressure and air at pressure is supplied to the chamber 23 by a blower B. In a modification, Fig. 4 (not shown), the interior of the separator is at a slight pressure and a suction is applied to the chamber.
Patent GB-786146-A (GB)
Title: Aqueous polymer dispersions and method of making the same
Inventor: FLORIA VERNON DEANE
IPC: C08F2/22
Filed: 1956-04-09
Abstract: Stable aqueous dispersions of interpolymers of a major proportion of at least one nonionizable vinyl aromatic compound, e.g. styrene, ar-vinyl toluene or xylene, ar-chloro-or dichlorostyrene and ethyl vinyl benzene, and at least one water-soluble salt of a vinyl aromatic sulphonate are prepared by agitating and heating the monomer mixture containing a water-soluble inorganic salt having an ionization constant greater than 10-5 at 25 DEG  C., other than a peroxy compound, a water-soluble inorganic peroxy compound and sufficient water to dissolve the sulphonate, the inorganic salt and the peroxy compound.  Suitable sulphonates are sodium, potassium, calcium and barium styrene sulphonates, sodium and potassium ar-vinyl toluene, and ar-vinylxylene and sodium and potassium ar-chlorostyrene sulphonates.  The inorganic compound may be sodium or potassium chloride, bromide or sulphate, or calcium or barium chloride or bromide, and may be present as an impurity in the vinyl aromatic sulphonate.  The peroxy compound may be hydrogen peroxide or sodium, potassium or ammonium persulphate, to which benzoyl, lauroyl or t-butyl peroxide may be added.  Emulsifying agents, e.g. sodium oleate, sulphonated sperm oil and sodium capryl phosphate (Example (4)) may be present.  The polymerization is preferably carried out in a closed vessel or under nitrogen to completion or alternatively short of completion when the unpolymerized portion may be vaporized to give a stable, concentrated or dilute aqueous dispersion as required.
Patent GB-560198-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L15/04
Filed: 1942-07-31
Abstract: 560,198. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and HARVEY, A. F. July 31, 1942, No. 10765. [Class 38 (iii)] Six full voltage traction motors are connected successively in two parallel groups of three in series ; in three parallel groups of two in series ; and finally all in parallel. All transitions are made by the bridge method. Fig. 8 shows the middle transition stage and Fig. 9 the stage immediately thereafter. This arrangement is suitable for multiple unit installations. For use on locomotives, a first grouping of six motors in series can be used, there being a bridge transition from this grouping to the two parallel groups of three in series. Specification 456,221 is referred to.
Patent GB-658899-A (GB)
Title: Improvements in or relating to mounting arrangements for piezo-electric crystal plates
Inventor: FAIRWEATHER DONALD
IPC: H03H9/09
Filed: 1949-04-22
Abstract: 658,899. Piezo-electric crystal mountings MARCONI'S WIRELESS TELEGRAPH CO.' Ltd. April 22, 1949, No. 10789. [Class 40 (viii)] A set of piezo-electric crystal plates C1, C2, C3 are loosely supported by the engagement of their lower electrode-free corners in slots formed between fingers F in a V-shaped metal sheet S, carried on a mica disc D1. The upper edges of the plates are located by a mica disc D3, which is joined by supporting rods R to disc D1 and to a third mica disc D2. Electrode coatings such as LC1 comprise a central part joined by a neck to one corner of the plate. The several neck parts are brought to different corners to facilitate spacing the leads W which are connected to the rods R and taken out at T, through the envelope E. In a modification, the supporting slots do not reach the edge of sheet S so that the fingers F are joined at their outer ends by a marginal strip which is bent up parallel to the edges of the crystals, Fig. 5 (not shown).
Patent GB-1350283-A (GB)
Title: Electrophotographic re-enlarging apparatus
IPC: G03B27/58
Filed: 1971-04-22
Abstract: 1350283 Enlarging apparatus KALLE A G 22 April 1971 [12 Oct 1970] 10809/71 Heading G2A An electro-photographic microfilm re-enlargement apparatus comprises a fixed image plane 9 a constant distance from a plane receiving a transparency 15 to be copied, a plurality of interchangeable lenses 19 of different focal lengths and means for displacing a mirror 21 to bring it into the appropriate position for the lens and enlargement factor selected. Sequence of Operations. To inspect an inserted negative 15, a key (76), Fig. 7, (not shown), is operated to move a mirror 26 into the position shown, open a diaphragm 27 and move a lamp 16 into the inspection position. Lens 23, prism 28 and mirrors 29, 30 are also used to produce an enlarged image on screen 25. This image is checked for position and content, translation and rotation of the negative support being effected, if necessary, by knobs (24). The key (76) is pressed again, and elements 16, 26, 27 revert to their copying positions. Data for the required number of copies, enlargement factor and sheet size is fed in, the apparatus being locked unless an admissible combination is selected. Such a combination results in movement of the lamp 16, lens turret 20 and mirror 21 to their prescribed positions by the shortest possible route, each of these elements being provided with a synchronous motor having a permanent magnet and being controlled by an induction switch, Figs. 2-4, (not shown). The exposure time is automatically changed over by selecting the enlargement factor. Actuating a start key (82) causes the coupling of that transport roller 4 which has been actuated by sheet size selection, and a magnet (64), Fig. 5, (not shown), of roller (63) to be switched on to feed the corresponding copy material from roll 1 or 2 through charging station 8. As the leading end of the web reaches an appropriate knife switch 66a, web feed stops and the web is severed. The sheet so formed advances until it trips the appropriate image stage 66b, preselected by the combination of enlargement factor and sheet size. An exposure is then made and the exposed copy is developed in a section 10 before being dried and ejected. The cycle is repeated until the required number of copies has been made.
Patent GB-762524-A (GB)
Title: Method of and means for the production of hollow bodies by the centrifugal casting method
Inventor: MILLER DAVID COUSER
IPC: B22D13/10
Filed: 1954-04-13
Abstract: 762,524. Centrifugal casting-machines. LION FOUNDRY CO., Ltd. April 12, 1955 [April 13, 1954], No. 10813/54. Class 83 (1). A centrifugal casting- mould - assembly conprises a permanent tubular-mould 1, an expansible sleeve 2 insertable therein, and a metallic mould - member 4 detachably fitted within the sleeve to form the outer boundary of a die-cavity 5, the inner boundary of which is defined by a core 6. The sleeve 2 is slotted longitudinally and tapered, and the member 4 is divided longitudinally into halves formed with interengaging dowels and sockets 7. The external surface of the member 4 may be roughened to retain the mould in engagement with the sleeve, and during casting, centrifugal-force and thermal expansion retain the members in place, while the expansibility of the sleeve 2 permits extraction of the member 4 and the cast body after the casting operation is complete.
Patent GB-543890-A (GB)
Title: Improvements in television transmitting tubes
IPC: H01J31/48
Filed: 1940-06-24
Abstract: 543,890. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 24, 1940, No. 10829. Convention date, June 24, 1939. [Class 39 (i)] A television tube comprises a mosaic or like screen for converting an optical image into an electron image, a coil producing the axial field for focusing the ray on the screen, which it strikes with a very small velocity, electrodes cooperating with the magnetic field for scanning, and other deflecting electrodes which shift the ray parallel to itself and also shift the ray composed of electrons returned by the screen in the same manner and other electrodes deflecting the latter ray in opposition to the original scanning so that it is received by an electron multiplier or other collecting device of comparatively small area. In the arrangement shown electrons from the gun 3are scanned over the screen 2 in a direction perpendicular to the plane of the paper and by the co-operation of a coil 27 and plates 28, 29. Between the plates 28, 29 and the screen 2 are plates 33, 34 which deflect the beam as shown so that under the influence of the coil 27 it proceeds parallel to its original path 35 as shown at 37. The electrons returned by the more negative portions of the screen retrace their path as shown at 40 and are deflected by the plates 33, 34 to pass between the plates 29 and 30. The plate 30 is connected to the plate 28 so that the returning electrons are deflected in the opposite direction to the scanning deflection and are collected by an electron multiplier 4 of the screen type. To ensure that the electrons passing between the plates 33 and 34 shall pass through a region of approximately constant potential for different scanning potentials the plates are connected across a resistance 44 a centre tap on which is connected slightly on one side of a resistance across the plates 28, 29. A modification is described in which only the original ray passes between plates corresponding to 3, 34 and the collector is behind the gun instead of beside it.
Patent GB-236004-A (GB)
Title: Improvements in ranges for cooking
IPC: A47J37/12
Filed: 1924-05-03
Abstract: 236,004. Hulme, J. J. May 3, 1924. Grates; ash-pans.-A fire-grote for a chippotato cooking-range is formed as a withdratwable unit independent of the setting and comprising side cheeks A, back A<1>, and front A<2>, in which is arranged a grate comprising bars D in a frame B pivoted near the front on a rod b<2>and having inclined depending side members b supported on a transverse rod C, the ends of.which are slidably mounted in grooves c<1> in the side cheeks or otherwise. On drawing the rod C forward by a handle c the grate is tilted rearwardly and the fuel dumped into the ash-pan F, which is formed with a hinged front f to control the air-supply. A trough-like receptacle G is pivoted to the grate front to receive,. cinders falling whilst the fire is raked or fuel is being supplied. In a modification, the fire bars are independently pivoted and formed with inclined members on the underside resting on the bar C; by varying the inclinations the bars may be rocked by moving the rod C to and fro. In another modification, the underside of the back member b<1> of the grate frame is inclined and rests on a laterally-movable rod.
Patent GB-166692-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C9/20
Filed: 1920-04-20
Abstract: 166,692. Jones, P. April 20, 1920. Jackets and covers; tyre attachments to rims. - Pneumatic tyres comprise in ccmbination a reinforcement for the tread consisting of a band B cut on the skew from a sheet of interlocking steel helices and one or more blocks L lying between the tyre beads. The blocks L, which are of indiarubber or other resilient material, may be made as separate rings, or each may be united with the tyre beads. The ends of the band B are jcined to form a ring by intercalating between the two end helices a helix of similar kind.
Patent GB-762222-A (GB)
Title: Internal combustion engines of the air cooled, liquid fuel injection compression ignition type
Inventor: BIGGS DONALD
IPC: F02M53/08
Filed: 1954-04-14
Abstract: 762,222. Cooling fuel injectors. RICARDO & CO., ENGINEERS (1927), Ltd. May 23, 1955 [April 14, 1954], No. 10945/54. Class 7 (3). A fuel injection nozzle 15 in an air cooled engine is provided with a nozzle tip 16 which has an annular seat portion 19 engaging a corresponding seat 11 formed around the injection aperture 10 in the cylinder head, the sides of the nozzle tip 16 being exposed to a space through which cooling air flows. The cylinder head is provided with cooling fins 12 integral with an upper stiffening web 13 which locates the upper part of the nozzle 15, cooling air being adapted to flow over the fins 12 and through the space surrounding the nozzle. A washer 20, which may be of metal, copper-asbestos, or non- metallic insulating material is provided between the nozzle tip 16 and its seat 11.
Patent GB-1530733-A (GB)
Title: Apparatus for producing containers each consisting of a rigid outer casing and a lining bag
IPC: B65B9/20
Filed: 1976-03-18
Abstract: 1530733 Making lined boxes ROBERT BOSCH GmbH 18 March 1976 [19 March 1975] 11005/76 Heading B5D In an apparatus wherein a bottom sealed portion of a tube 6 which has been formed around a hollow mandrel 16, is inserted in a box 1 and then severed from the remainder of the tube 6 to form a bottom sealed lining bag 3 in the box, said bottom sealed portion of the tube is drawn from the mandrel 16 and positioned in the box 1 by conveyer belts 26 adjacent the mandrel and a reciprocable plunger 27 which is guided in the mandrel. The conveyer belts 26 which feed bag lengths of the tube 6, advance the tube in timed relationship with the plunger 27 which may be moved down to the bottom of the box 1 or may only partially enter the box. In the latter case compressed air is blown into the bottom sealed tube from an opening in the end wall 28 of the plunger 27. The conveyer belts 26 are perforated so that the tube can be drawn thereagainst by suction from suction chambers 37. The boxes 1 are successively positioned below the mandrel 16 by an intermittently operable conveyer 12. The tube 6 is formed around the mandrel 16 from a web 5 by a forming shoulder 17 and a longitudinal seam welding device 18. A welding device 20 and a shear 22 which are provided below the mandrel 16, bottom seal and sever the tube, respectively.
Patent GB-1172317-A (GB)
Title: Finely Divided Particles
Inventor: MEYER MAX FREDERICK JR
IPC: C08J3/14
Filed: 1967-03-09
Abstract: 1,172,317. Tobacco-smoke filters. EASTMAN KODAK CO. 9 March, 1967 [16 March, 1966], No. 11064/67. Heading A2C. [Also in Division C3] Tobacco-smoke filters comprise polymer particles of average size 1 to 900 microns diameter and surface area of at least 5 square metres per gram, which may be prepared by dissolving the polymer in a solvent at elevated temperature and pressure, cooling the solution at a reduced rate in the region of the precipitation point, optionally in the presence of additives, to a temperature low enough to precipitate the polymer and then releasing the pressure. The additives may be removed by dissolution or decomposition to give particles of open cellular structure. Examples describe the preparation of filter tips for cigarettes by enclosing in wrappers, optionally plugged with cellulose acetate, powders derived from (1) polypropylene, (2, 3 and 5) polypropylene and rice starch (extracted), (7) polypropylene and rice starch, (9) polyethylene and rice starch (extracted) (10) polystyrene and rice starch (extracted), (11) polycarbonate and rice starch (extracted), (12) polyethylene terephthalate and rice starch (extracted), (13) polypropylene and calcium carbonate (extracted) and (14) polypropylene and calcium phosphate (extracted).
Patent GB-1420003-A (GB)
Title: Threaded nestable container drilling fluid degassing
IPC: B65D21/02
Filed: 1973-03-08
Abstract: 1420003 Nestable containers SWEETHEART PLASTICS Ltd 8 March 1973 [20 March 1972] 11306/73 Heading B8D The lowermost portion 24 of an external screwthread 22 around the upper portion 14 of a thin-walled, nestable one-piece plastics container is engageable with the rim 18 of a like container to support the containers in non- jamming nested relationship. The radial extremity of the thread increases from the rim downwards and lies on a cylinder to enhance stability of a nested stack. The thread also has a saw-tooth configuration to improve rim/ thread engagement. The rim 18 provides a sealing seat for the gasket of a metal cap L adapted to be screwed on to the upper portion. In another embodiment, Figs. 3 and 4 (not shown), the external thread is in the form of a multi-start thread 52-58 so that the lower portions 60 thereof provide four circumferentially-spaced supports adapted to engage the flush rim 48 of a like container. The rim may be flared or rolled over so long as its radial extent does not interfere with the threading-on of the cap. The container may be pressure or vacuumformed from sheet or blow- or injectionmoulded.
Patent GB-336930-A (GB)
Title: Improvements relating to electro-magnetic units for acoustic instruments
IPC: H04R11/00
Filed: 1930-04-10
Abstract: 336,930. Ruppert, J. April 10, 1930. Magnetic instruments. - An electromagnetic unit for acoustic instruments, more particularly a driving unit for large diaphragm loud-speakers, comprises outer and inner magnetic poles on both sides of the axis of vibration of an armature, the arrangement being such that the outer poles exert on the armature a turning moment which is in opposition to that exerted by the inner poles with the result that the amplitude of vibration of the armature is proportional to the difference between the opposing moments. In the construction shown, the armature 9 is centrally mounted by lateral extensions 10, 11 between the pole pieces N1- - N4 and S1 - -S4 of laminated pole shoes 3, 4 which bridge the like poles of two permanent horseshoe magnets 1 of substantially equal intensity of magnetization. The pole shoes are secured to the magnets by screws 3a, 4a so that the correct spacing of the pole shoes is obtained by placing the holes for the screws in appropriate positions in the magnets. Speech coils 5, 6 are accommodated in the outer recesses of the pole pieces, the input leads being attached to terminals on a. strip 7. One end of the armature is connected to a conical diaphragm by rod 13, adjustable springy strip 14 and rod 15. In operation, the coils are so arranged that the currents therein produce magnetic poles n1, s1, n2, s2 in the armatures as shown in Fig. 4 with the result that the turning moment exerted by the outer poles N1, S1, N4, S4 is damped by the lesser opposing turning moment exerted by the inner poles N2, S2, N3, S3.
Patent GB-843767-A (GB)
Title: Improvements relating to control systems for electrically propelled vehicles
Inventor: CALVERLEY HENRY BOLTON
IPC: B60L3/10
Filed: 1956-04-17
Abstract: 843,767. Control of several D.C. motors. ENGLISH ELECTRIC CO. Ltd. April 11, 1957 [April 17, 1956], No. 11616/56. Class 38 (3). If the wheels driven by either of the traction motors M1, M2 should slip, the coils of a relay WSR1 become unbalanced and the relay closes its contacts WSR1a to connect a tap on resistor 13 directly to the negative terminal of rectifier 17. This renders rectifier RT1 non-conducting whereby the motor-group M1, M2 operates only on half-wave rectification, so reducing the current drawn by the motors. When the slipping wheel regains adhesion, the voltage balance is restored, and the wheel-slip relay opens its contacts, again to provide full-wave rectification. The grids of rectifiers RT3, RT4, are similarly maintained normally at a positive potential with regard to their cathodes by connecting each grid to the positive terminal of rectifier 20 and each cathode to the negative terminal of the bridge rectifier. A wheel-slip relay WSR2 is associated with motor group M3, M4, and is arranged to render rectifier RT4 non-conductive in the event of wheel-slip on either of these motors. In an alternative arrangement, each wheel-slip relay blocks not only a rectifier associated with the group containing the slipping motor, but also the rectifier, associated with the other group, which is connected to the opposite end of winding 10b. This prevents D.C. magnetization of the transformer core. The wheel-slip relays may open with time-delay to allow a longer period for restoration of normal conditions. An overload relay OL1 closes contacts OL1a if the current through rectifier RT2 exceeds a predetermined value. This results in a negative bias being applied to the grids of both the rectifiers RT1, RT2. A similar relay OL2 is connected in circuit with rectifier RT4. The rectifiers RT1- RT4 may be connected in a bridge circuit, and the wheel-slip relays may be effective to render non-conducting the rectifiers of one half of the bridge circuit only. When the motors are connected in parallel, the wheel-slip relays detect unbalance in the current between pairs of motors. Wheel-slip may be detected by means of tachometer generators.