baber/WOPTO huggingface dataset:
Patent GB-878716-A (GB)
Title: Method of and equipment for making powder compacts
Inventor: SCHULZ HERMANN THEODOR WALTER
IPC: B22F3/02
Filed: 1958-07-01
Abstract: 878,716. Powder metallurgy. HUSQUARNA VAPENFABRIKS A. B. July 1, 1958, No. 21083/58. Class 82(1) [Also in Group V]  A hollow cone-shell shaped compact of metal or other powder is formed by compressing the powder 51 between a matrix 20 and a core 32 having parallel inclined surfaces 29, 32 of frusto-conical shape extended by cylindrical surfaces 30, 38. The core 32 is supported at a desired spacing from the matrix 20 by an adjusting screw 34 resting on a rod 25. The latter is secured in position by a catch 28 (not shown) whilst powder is poured into the moulding cavity from a filler 51. When the moulding cavity is full the filler 51 is moved away, the rod 25 released, and a press-head 42 lowered so that an annular punch 33 first closes the mouth 49 of the moulding cavity and then compresses the powder. The core 32 is also depressed by the press-head 42 but through a yielding spring 46 so that it moves more slowly than the punch 33, until it is moved in unison with the latter, when the head 42 engages a part 44 of a pressing plate 43 .The press-head 42 is then returned to its upper position, and an ejector 23 raised to lift the core 32 and powder compact sufficiently to enable them to be removed manually and separated. After sintering the moulded shell may be pressed to a required size in an apparatus (Figs. 7 and 8, not shown) similar to that illustrated in Figs. 1 and 2 but having a modified mechanism for operating the annular punch. In a modified apparatus (Figs. 9 and 10, not shown) for making the initial pressing the core 32 is suspended by a bolt from the pressing plate 43, and in a further apparatus (Figs. 11 to 13, not shown) the core and the moulding cavity taper upwardly instead of downwardly, and two oppositely acting plungers may be provided. The moulding powder specified consists of powdered iron and/or other metals such as copper, a specific example being a mixture of 98% Fe and 2% Cu with 0.5% of a lubricant of graphite and stearic acid. The sintering temperature is 1180‹C. maximum.
Patent GB-1424395-A (GB)
Title: Electromagnetically-operated valve
IPC: F16K31/11
Filed: 1973-05-04
Abstract: 1424395 Valves ALFRED TEVES GmbH 4 May 1973 [8 May 1972] 21247/73 Heading F2V In an electromagnetically-operated valve a valve member in the shape of a ball 3 is adjusted relative to an armature 2 by a screw 11 in a central threaded bore 12 thereof. The ball 3 is held in a recess in the end of the armature by a force fit. On energization of the electromagnet 1 the valve member moves to cut off communication between inlet 5 and outlets 6. Screw 11 is rotated by a pin 17 having a leaf-shaped extension 13 engaged with the screw. In a modification the ball 3 is screwed to a bush which is axially fixed to the screw 11 but is rotatable thereon, and a fixed pin (21) engages in a further bore (19) of the armature to prevent rotation thereof, a damping restriction (20) being provided in the further bore. In a further modification the armature is spring biased to a valve closed position and the pin 17 is replaced by a screw plug which can be removed to allow the insertion of a tool to rotate the screw and/or an abutment for the spring to adjust the bias.
Patent GB-384245-A (GB)
Title: Improvements relating to colour pictures and method of producing same
IPC: B44F1/02
Filed: 1932-07-28
Abstract: 384,245. Pictures ; ornamenting. KING, M., 3, Eaton Square, Monkstown, Co. Dublin, Irish Free State. July 28, 1932, No. 21325. Convention date, Oct. 30, 1931. [Classes 11 and 93.] A picture is produced on glass by tracing an outline in raised lines of distinctive colour, e.g. gold, on the front and colouring the different parts of the picture on the back. The outline may be produced by placing the glass over a copy on paper of the picture, and may be painted with a fine brush or applied by extrusion of a pasty substance from a fine nozzle. The colour may be mixed with the medium, or may be dusted on afterwards while it is still wet. The back of the glass is varnished after the paint has been applied. The process may be applied to mirror glass, in which case the glass is left clear where the colours are to be applied, to fancy glasses, e.g. of a mother-ofpearl appearance, or to transparent cellulose materials.
Patent GB-990234-A (GB)
Title: Improvements in or relating to a sandal strap holding means
IPC: A43B3/10
Filed: 1961-06-13
Abstract: 990,234. Sandals. SCHOLL MFG. CO. Ltd. June 13, 1961 [June 16, 1960], No. 21350/61. Heading A3B. The ends of sandal straps 3, 4 are secured by strips 6 of metal or other rigid material which overlie the full width of the strip, securing elements 7 passing through the strips and the strap and into the sole 1 and causing the strips to be partially embedded in the strap. Strips 6 are slightly curved lengthwise, as shown. The ends of straps 3, 4 may be scalloped as at 12, and the sole may be rigid longitudinally or transversely. Specification 877,365 is referred to.
Patent GB-334328-A (GB)
Title: Improvements in or relating to focusing cameras
IPC: G03B19/04
Filed: 1929-07-11
Abstract: 334,328. Mottlau, A. J. July 11, 1929. Focusing devices.-The lens of a folding camera slides laterally into an adjacent position, for focusing, drawing a slide to cover the exposure opening, and a magnifying focusing device 17, Figs. 1 and 3 normally mounted in a housing 15 forming a lateral extension of the camera body 10, is movable out of the housing for focusing. In one construction, the focusing device comprises a tubular mount 17, pivoted at 18, and containing a small screen 20 and eyepiece 21. In a modified construction, the mount 54, Fig. 8, is fitted with an eyepiece 63 and a prism, the face 60 of the prism being in the equivalent focal plane. The mount 54 is pivoted on an extension wall 51 of the camera back 50 on a pivot 55 parallel to the optical axis, and can be held in the two positions indicated for horizontal and vertical pictures. Alternatively the focusing tube can be fitted with a prism 72, Fig. 9, having clear faces, a plano convex lens 75 adjacent one face and a focusing eyepiece 77. To close the exposure opening 26, Fig. 4, of the camera when the lens 41 is moved laterally into focusing position, the lens is mounted on a lens board 33 which slides in guideways 30, Fig. 1, on the camera front 25. The lens board has a lateral extension 34 with a projection 35 which engages a groove 39 in a rear slidable coverboard 38. On sliding the lens into focusing position, the extension 34 first covers the aperture 26 and then draws the coverboard 38 to maintain the cover. The lens shutter is opened for focusing by a lever 42 which engages a pin 43 on the camera front.
Patent GB-576424-A (GB)
Title: An improved vibration and/or shock absorber
IPC: F16F3/12
Filed: 1943-12-24
Abstract: 576,424. Resilient mountings. A.V.A., Ltd., and PENTONY, T. H. Dec. 24, 1943, No. 21647. [Class 108 (iii)] A cushioning device for machinery accessories, dynamos, engines, instruments &c. comprises a coiled spring 2 embedded in a solid block 1 of indiarubber or like material, means being provided for transmitting stresses from any direction, including tensile and compressive stresses in the direction of the axis of the spring, to the ends of the rubber block and at the same time to the spring embedded therein. The means for transmitting stresses may comprise plates or discs 3 bonded or otherwise secured to the opposite ends of the rubber block and provided with projections 5 fitting into the ends of the spring. The device is secured in position by screwthreaded spindles 4 preferably integral with the plates 3. In other constructions (a) the body 1 is frusto-conical and the spring substantially so ; (b) the body and spring are both waisted; and (c) two conical springs each co-axial with end spindles are embedded in a rubber block of rectangular cross-section provided with rectangular end plates. The body 1 may be of any cross-section and, for mounting heavy units, several springs may be embedded in it. According to the Provisional Specification each plate may be welded to the adjacent end of the spring.
Patent GB-754052-A (GB)
Title: Improvements relating to stretchers
Inventor: DUNN RICHARD LAURENCE
IPC: A61G1/00
Filed: 1954-07-24
Abstract: 754,052. Stretchers. DUNLOP RUBBER CO., Ltd. July 5, 1955 [July 24, 1954], No. 21664/54. Class 108 (1). A stretcher comprises a substantially rigid pan 12 having the part 14 corresponding to the heavier parts of the body depressed below the level of the remaining parts and a resilient mattress which may have a flat upper surface or a surface corresponding to the pan.
Patent GB-404742-A (GB)
Title: Improvements in the production of photographic records of sound
IPC: G03C5/14
Filed: 1932-08-02
Abstract: 404,742. Photographic sound-records. GROVES, W. W., 30, Southampton Buildings, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on-Main, Germany.) Aug. 2, 1932, No. 21667. [Class 40 (ii).] Photographic sound - record negatives of the varying density type are made by recording on a light-sensitive film having a very steep gradation, by means of a source of light of which the unmodulated intensity is adjusted to the mean value of the abscissµ of the straight part of the transparency curve of the film, the exposed film being developed with a so-called depth developer. A negative made by this process is adapted for direct reproduction of the recorded sounds. Fig. 2 shows the transparency curve by means of which the required intensity of the light, corresponding to the point e on the curve, is determined. The abscissµ represent i x t (light intensity multiplied by a constant exposure time t), the ordinates being the transparency values. This curve is derived from the characteristic curve shown in Fig. 1, which is obtained experimentally. Films suitable for use according to the invention are those hitherto used for aerial surveys, and the developer is preferably of the kind used for developing film titles (e.g. strongly alkaline solutions containing hydroquinone).
Patent GB-628359-A (GB)
Title: Electrical contact socket
IPC: H01R33/06
Filed: 1947-08-07
Abstract: 628,359. Two-part couplings. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 7, 1947, No. 21697. Convention date, April 26, 1940. [Class 38 (i)] A socket for an electrical device having two contact pins extending from the base thereof, e.g. starting apparatus for discharge lamps, comprises four superimposed fibre laminations, the upper one 31, Fig. 3, having a central cutout 36 to receive the base of the device and the second one 1, Fig. 1, having two arcuate cutouts 6, 7 in which the contact pins are inserted and the device rotated. The third lamination 26, Fig. 2, has cut-outs 27 ... 30 to receive resilient contacts 12, 13 and leads 10, 11 attached thereto, respectively. The cut-outs 27, 28 co-operate with the cut-outs 6, 7 and the contacts 12, 13 are so shaped that when the device has been rotated and the pins occupy the positions 16, 17 they grip the pins on two sides. A plain bottom lamination is provided as a base.
Patent GB-281401-A (GB)
Title: Improvements in the filaments of vacuum electric tube devices
IPC: H01J1/16
Filed: 1926-09-03
Abstract: 281,401. Robinson, E. Y., and Metropolitan-Vickers Electrical Co., Ltd. Sept. 3, 1926. Vacuum tubes. - filaments having a number of legs are formed of strip metal and the legs are disposed substantially in one plane or defined surface. The bend between adjacent legs may be formed by imparting sharp twists to the strip, as at 5, Fig. 2, or by folding the strip twice at an angle, as at 6, Fig. 3, or separate legs may be joined by welding a piece of strip metal across them. To enable bends to lie exactly in the plane of the legs, as at 8, Fig. 6, the filament may be stamped from sheet metal. Sharp bends may be formed by folding the strip as at 3, Fig. 7. The bends may be supported in the vacuum tube by flat or wire hooks embedded in glass beads carried by anode supports. A vacuum tube is described, (Fig. 8, not shown), wherein a filament is bent to have four parallel legs which are accommodated in pairs in two parallel tubular anodes. The filament may be used in a valve as described in Specification 195,691.
Patent GB-1281422-A (GB)
Title: Means for cleaning motor road vehicle headlamps
Inventor: WHARTON WILLIAM
IPC: B60S1/60
Filed: 1970-05-06
Abstract: 1281422 Cleaning vehicle head-lamps WHARTON ENGS (ELSTREE) Ltd 30 April 1971 [6 May 1970] 21780/70 Heading A4F A vehicle head-lamp glass is maintained clean by means actuated by the relative movement of the vehicle and the air in front of it, and comprising a wiper element 18 carried by a rotor 9 having blades 14 arranged so that air flowing radially outwards from the rotor axis will rotate the rotor. The wiper element 18 is carried by a flexible arm 10 secured to a spoke 10 of the rotor 9. A plain sheet of glass or other transparent material may be disposed between the head-lamp glass and the wiper blade 18.
Patent GB-184483-A (GB)
Title: Improvements in apparatus for coating webs of fabric with solution
IPC: D06B3/10
Filed: 1922-08-10
Abstract: 184,483. Martini & H³neke Maschinenbau Akt.-Ges., (Assignees of Hurlbrink, E.). Aug. 10, 1921, [Convention date]. Volatile liquids, recovering.-In machines for coating webs of fabric with caoutchouc &c. in which air or a gas, preferably free from oxygen, is circulated over the coated web and is cooled to separate the volatile solvent, the casing of the apparatus is covered with heat-insulating material, and the condenser'is located at a distance so that condensed solvent cannot drip back to the coated fabric. A series of machines, in which the coated fabrics are passed over heated plates g beneath casings a is connected by pipes p to a pipe q leading to a. condenser u and by pipes l, m, n to a pipe k which receives the gas from the condenser after passage through a pump i and heater h. The casings a and the pipes m, n, p are covered with heat-insulating material. Cocks s in the pipes p are connected by levers t with cocks o in the corresponding pipes l so as to open or close the cocks simultaneously. The pipes p are formed with a bend which extends upwards above the level of the junctions of the pipes with the pipe q.
Patent GB-597780-A (GB)
Title: Improvements relating to illuminated indicators
IPC: G09F13/10
Filed: 1945-08-27
Abstract: 597,780. Signs. HOPKINSONS, Ltd., DALE, W. B., and BROWN, R. L. Aug. 27, 1945, No. 21923. [Class 3 (ii)] [Also in Group XXXVI] A box sign is built up of a plurality of rectangular casing blocks a, each of which is slightly larger than a standard electric incandescant lamp, and has at its outer end a display stencil e enclosed between two glass &c. sheets d. The stencil unit is held in place by front lips c and wires f soldered to the casing a. The lamp holders g carry two U-shaped wire springs h which removably engage opposite corners of the casing a. A transparent and preferably coloured panel i covers the front of the composite sign.
Patent GB-705521-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G13/00
Filed: 1948-09-01
Abstract: 705,521. Condensers. DUBILIER CONDENSER CO (1925), Ltd. (Dubilier, W.). Sept. 28, 1949 [Sept. 1, 1948], No. 22154/51. Divided out of 705,472. Class 37 A condenser comprising electrodes and a dielectric consisting of paper or like fibrous material which has been impregnated with the usual hydrocarbon oils,' waxes or jellies is enclosed, by moulding, within a polymerized hard solid body through which the terminals project, such body being formed by copolymerization of an unsaturated compound, the moulding material being such that it will set within a time period of, at most, three hours at a temperature not exceeding 135‹C. The condenser may be of the spirally wound type with paper and metal foil strips, and with connectors extending from each end of the roll. The moulding material is as described in Specification 705,472 which is referred to.
Patent GB-702087-A (GB)
Title: Process for the continuous treatment of insulating oil at low temperatures by means of filtering, deaerating and drying
IPC: C10M175/00
Filed: 1951-09-21
Abstract: <PICT:0702087/III/1> In the continuous treatment of insulating oil at room temperatures by filtering, deaerating and drying by atomizing through one or more nozzles into a vacuum vessel and taking off water vapour by a pump, means are provided for maintaining the oil in said vessel at a level below said nozzle, part of this oil being atomized a number of times in the same vessel.  The filtered oil is forced through nozzles 1 into vessel 2, water vapour being withdrawn at 3 by a vacuum pump.  Part of the oil below level 4 is discharged by pump 5 through pipe 6, and part returned by pipe 7 fitted with atomizing nozzles 8.  A throttle diaphragm 9 in pipe 6 gives a pressure above atmospheric.  The output of pump 5 varies with the oil level 4, said output having a maximum of at least twice the input through nozzles 1 so that continuous operation is possible.
Patent GB-841610-A (GB)
Title: Purifying coal distillation gases
IPC: C10K1/12
Filed: 1956-07-18
Abstract: 841,610. Purifying gases containing hydrogen sulphide. KOPPERS G.m.b.H., H. July 18, 1956 [Sept. 14, 1955], No. 22246/56. Drawings to Specification. Class 55 (2). In a process of removing hydrogen sulphide from coal distillation gas containing a small amount of free oxygen, the gas is scrubbed under pressure, e.g. 5 atm., with alkaline absorbent solution containing as a catalyst a hydroxy- or polyhydroxybenzene compound in such an amount that the absorbed hydrogen sulphide is wholly or almost wholly oxidized to form sulphur by the free oxygen in the gas being scrubbed, the solution being withdrawn from the scrubber and filtered under reduced pressure to remove the sulphur before being returned to the scrubber. A regeneration of the solution with air may be necessary outside the scrubber if the free oxygen content of the gas is insufficient to effect complete oxidation of the absorbed hydrogen sulphide. The amount of catalyst in the solution may be from 1.5-2.5 gm./litre.
Patent GB-1275602-A (GB)
Title: Packaging coils of strip material
Inventor: REED GEOFFREY RONALD
IPC: B65B27/06
Filed: 1969-05-01
Abstract: 1275602 Packaging coil strip BRITISH IRON & STEEL RESEARCH ASSOCIATION 10 March 1970 [1 May 1969] 22275/68 Heading B8C] Coils of sheet steel 2 to be packaged are transferred, one at a time, by an overhead transport, 8 from a platform 4 to a conveyer 6 where one set of rollers 10 rotate it about its axis to unwind the outer turn 12 so that it passes along a table 16 beneath a cutter 24, a paper sheet dispenser 14, and a dispenesr 22 for delivering narrow strips 20 of steel sheet from a pair of drums 18, 18. The cutter 24 is lowered to stamp out two slots extending inwardly from both sides of the turn 12 and leave a small central connecting portion, the steel strips 20 and the superposed layer of paper 26, being dispensed from the drums 18, 18 and the dispenser 14 respectively. The paper 26 and strips 20 are then secured respectively, by an adhesive and spot welding, adjacent the cut-out slots in the turn 12, the strips 20 overhanging the respective side edges of the turn 12. The latter is then wound back on to the coil 2 with the paper 26 and the strips 20 interposed between the coil and the outer turn 12; and the cutter 24 is lowered again to sever the strips 20 and the paper which is torn away at the centre connecting portion. Two sheets of paper 34, 36 are then rolled into cylinders and sprung into the eye 28 of the coil with the outer ends of the sheets overhanging the ends of the coil. Two sheets 42, 44 of steel are similarly formed and expanded within the eye 28 to also overhang the coil ends. The coil is next moved axially, by the other set of rollers 8 with the free end of the turn 12 beneath the coil, to a banding machine 46 which applies metal bands 48. An overhead conveyer 50 now carries the coil through a tunnel 52 where the ends of the coil are first coated with a releasing agent 54 and then sprayed with a layer of polyurethane rigid setting-foam. The overhang projections at the ends of the coil prevent the foam from spreading over the outside of the coil. The coil finally passes to an automatic banding machine where one or more bands 60 are applied. In a modification, the outer turn is unwound only sufficiently to provide a lead-in for the paper which forms the outermost layer of the packaged coil; the overhanging strips 20 being laid outside the paper.
Patent GB-1124528-A (GB)
Title: Improvements in or relating to percussive tools and machines
Inventor: JAMES DAVID RICHARD
IPC: E21B1/26
Filed: 1966-05-19
Abstract: 1,124,528. Percussive tools. SONOMOTIVE ENGS. Ltd. 5 July, 1967 [19 May, 1966], No. 22298/66. Heading B4C. A percussive tool, such as a road breaker, comprises a reciprocating striker piston 2 having a step which provides a differential area which, when approaching the outer limit of the forward stroke of the striker, enters and closes or restricts an aperture 8 of a chamber 6a which in use is filled with liquid so that further forward movement is arrested by the resultant pressure rise of the liquid in the chamber. The upper end face of the piston 12 is acted upon by compressed air fed into a chamber 13 via a valve 14. The step may also be formed on the upper end of the piston by means of a flange (42, Fig. 3), which moves in a liquidfilled chamber 36. The construction of the tool (Fig. 3, not shown) is fully described in Specifications 1,124,526 and 1,124,529.
Patent GB-1141959-A (GB)
Title: Lead screw and nut
Inventor: GERBER HEINZ JOSEPH
IPC: F16H25/24
Filed: 1967-05-15
Abstract: 1,141,959. Screw-and-nut gearing. GERBER SCIENTIFIC INSTRUMENT CO. 15 May, 1967, No. 22332/67. Heading F2Q. A nut frame 12 is adapted to be moved axially on rotation of a lead screw 10 by the engagement of rollers 58, carried on radial journals 60 mounted on the frame 12, with the flanks 28 of a helical thread of rectangular cross-section formed on the screw 10, groups of rollers 38 also being mounted on the frame 12 and engaging the outer land 30 of the screw thread. Adjustment of the rollers 58 is provided by mounting the journals 60 eccentric to studs 62 which are locked in position by set screws 63, Fig. 3. Adjustment of the rollers 38 is provided by screws located in recesses 4, 6. The nut frame 12 is supported from a fixed guide plate 16 by rollers 18, 20 and 22
Patent GB-680174-A (GB)
Title: Improvements in or relating to refuse-collecting vehicles
Inventor: GIBSON GEORGE THOMSON
IPC: B65F3/20
Filed: 1950-09-12
Abstract: 680,174. Vehicle fittings. GIBSON & SON, Ltd., J. March 8, 1951. [Sept. 12, 1950] No. 22398/50. Class 78 (iv). The rear of the refuse collecting vehicle is closed by a door suspended on trunnions 19, the door has spaced side members 7 and 8 connecting members 5 and 6, and hinged members 11 at the bottom which are lifted to feed refuse to a chamber 13 and may be locked by catches 26. A ram rod 20 is detachably bolted to the lower part of the door which comprises a pusher plate 17 which feeds the material into the body of the vehicle as the door swings inwardly. To discharge the vehicle the bolt 24 is withdrawn, the vehicle is tipped and the door swings outwardly.
Patent GB-301107-A (GB)
Title: Improvements in sight-testing instruments
IPC: A61B3/12
Filed: 1927-08-26
Abstract: 301,107. Keeler, C. H. Aug. 26, 1927. Ophthalmoscopes. -In that type of apparatus by which the refractive error of the eve is determined by the movement of a focussing lens in a system for projection of an image of a graticule on to the retina, a pointer 9 is provided moving over a dial 10 in accordance with the movement of the focussing lens 7. The dial is calibrated to read in dioptres. The retina may be viewed by the observer through lenses or a telescopic system independent of the focussing lens 7, or means may be provided to receive an image of the retina and graticule upon a photographic plate. In place of the pointer a micrometer head may be used.