baber/WOPTO huggingface dataset:
Patent GB-737253-A (GB)
Title: Improvements in hammer mills
IPC: B02C13/20
Filed: 1953-12-01
Abstract: 737,253. Hammer mills. PAWERT AKT.-GES. Dec. 1, 1953 [Dec. 23, 1952], No. 33354/53. Class 59. In a hammer mill comprising a casing i containing at least two counter-rotating rotors carrying pivotally-mounted hammers e<SP>1</SP> to e<SP>4</SP>, the rotors comprise spoollike bodies to the flanges c of which are fixed baffle strips o to prevent material accumulating between the rotors and the casing and the hammers are arranged in groups on carrier pins d with a gap h or gaps h<SP>1</SP> in each group of hammers of such width as to form a continuous annular duct zone or zones around each rotor on rotation thereof, the zone or zones continuously drawing in parts of the material tossed around by the hammers so as to present the same repeatedly to the comminution zone between each two rotors. Each rotor carries at least two and not more than four groups of diametrically-arranged hammers. Other baffle strips are fixed to the walls of the casing. The casing comprises a detachable solid portion i<SP>1</SP>, Fig. 1, and a detachable perforated portion i<SP>2</SP> leading to a discharge hoodj connected to a suction line k. The portions i<SP>1</SP>, i<SP>2</SP> may be interchanged and the material discharged through a lateral suction duct k<SP>1</SP>.
Patent GB-394233-A (GB)
Title: Improvements relating to the tube walls of steam boilers and the like
IPC: F22B37/10
Filed: 1932-11-25
Abstract: 394,233. Walls for furnaces and gasproducers. HUMPHREYS & GLASGOW, Ltd., Humglas House, Carlisle Place, London. -(Assignees of Marischka, C. ; Gaswerk Leopoldau, Vienna.) Nov. 25, 1932, No. 33404. Convention date, Feb. 4. [Classes 51 (i) and 55 (i).] Tubular walls of boiler furnaces and gas-producers are formed of tubes containing a cooling medium such as water, adjacent tubes a<1>, a<2> having a yielding gastight connection consisting of a metallic strip b having its edges welded to the tubes on opposite sides of a line joining the centres of the tubes. The strip may be flat or S-shape.
Patent GB-949490-A (GB)
Title: Process for the production of the hydrides of the alkaline earth metals and of lithium
IPC: C01B6/04
Filed: 1961-09-19
Abstract: A hydride of lithium or an alkaline earth metal, e.g. calcium, is prepared by reacting an anhydrous halide, e.g. chloride, of lithium or the alkaline earth metal with sodium or potassium or alloys thereof in the presence of hydrogen at a temperature high enough to melt the mixture of halide and alkali metal under the reaction conditions but below the boiling point of the alkali metal and below the temperature for substantial decomposition of the product hydride, e.g. 725 DEG  C. for Ca, 650 DEG  C. for Li, the reaction being carried out in such a way to avoid layer formation.  The reaction may be carried out a temperature at which the mixture of halide and metal is completely molten before the reaction starts and the product mixture is at least a stirrable suspension of solid in melt. The stirring action may be up and down or accomplished by vibration or the introduction of hydrogen, e.g. at 50-70 mm. Hg above atmospheric. The melting point of the reaction mixture may be lowered by the addition of an alkali or alkaline earth metal halide, e.g. NaCl or an excess of halide reactant.  An excess of halide reactant is desirable for alkaline earth metal hydride production but for lithium hydride, stoichiometric proportions of reactants may be used. The Na/K halide formed in the reaction may be extracted with glycerine, propylene glycol or liquid ammonia. Specification 761,745 is referred to.
Patent GB-1067899-A (GB)
Title: Pressure-cast compound cylinders for air-cooled internal-combustion engines
IPC: F02F1/08
Filed: 1964-08-19
Abstract: 1,067,899. Air cooled cylinders for I.C. engines. KARL SCHMIDT G.m.b.H. Aug.19, 1964 [Sept.12, 1963], No.33804/64. Heading F1B. An air-cooled cylinder comprises a light alloy casing surrounding a cast iron liner b and a reinforcement a at each end of the casing, at least one of the reinforcements being a separate ring located between the liner b and an overlapping end portion of the casing. As shown separate rings a are provided at each end of the casing; alternatively the ring at the cylinder head end may be replaced by a thickened portion of the liner b.
Patent GB-1299800-A (GB)
Title: Improvements in or relating to mass spectrometry
Inventor: BATEMAN ROBERT HAROLD
IPC: H01J49/02
Filed: 1970-07-13
Abstract: 1299800 Mass spectrometers ASSOCIATED ELECTRICAL INDUSTRIES Ltd 16 June 1971 [13 July 1970] 33897/70 Heading H1D Mass spectrometry apparatus for measuring the magnetic induction in the magnetic analyser of a mass spectrometer for calibration purposes comprises a movable coil, means to mount the coil in relation to the mass spectrometer such that in use the magnetic induction in said magnetic analyser interacts with a current in said coil, and means to provide an indication of the extent of said interaction, whereby said indication is a measure of the magnetic induction. The coil with a mirror attached and the coil suspension may be mounted in the interpolar gap of the analyser magnet to form a mirror galvanometer providing said indication by the reflection of a beam of light or other suitable radiation on to a graduated scale which is non-linear in such a way that the indication is directly proportional to the specific mass of ions instantaneously reaching an ion collector of the mass spectrometer. Mass marking may be achieved by projecting the reflected light beam on to an opaque plate having a series of transparent slits through which the light passes to a photo-cell which provides signals at regular increments or decrements of magnetic induction corresponding to regular intervals of specific mass. The scale of slit positions may be selected to compensate for perturbations caused e.g. by eddy currents in the magnet. Several scales may be employed corresponding to different scanning speeds. The coil movement is damped, preferably by a fluid the temperature of which is controlled to maintain its viscosity constant.
Patent GB-194423-A (GB)
Title: Improvements in and relating to fire-lighters and like fuel
IPC: C10L11/04
Filed: 1921-12-16
Abstract: 194,423. Gridley, J. Dec. 16, 1921. Wood fuel.-Wood firelighters are formed of a number of strips a each provided with a tapering notch b at the middle of one side and so enabling any other strip over which it may be pressed to be gripped therein. The firelighters are packed in blocks with their flat surfaces in contact, two of such blocks being bound back to back by a string e passing through the notches. For use the strips are built up into an open structure, as shown in Fig. 3.
Patent GB-290133-A (GB)
Title: Method for fastening the calks and the tread of horse shoes made by rolling process
IPC: B21K15/02
Filed: 1927-12-16
Abstract: 290,133. M³cklich, M. Dec. 16, 1927. Drawings to Specification. Horseshoes.-The tread and calks are fixed to a rolled horseshoe by welding them on projections formed by making indentations in the opposite face of the shoe. The tread and calks and corresponding projections are then pushed back until the shoe is restored to its original flat form.
Patent GB-681982-A (GB)
Title: Improvements in or relating to spatter finish coating and method and apparatus for producing the same
IPC: B05B7/04
Filed: 1947-12-24
Abstract: <PICT:0681982/III/1> <PICT:0681982/III/2> A spatter finish coating is produced by propelling through an orifice a stream composed of a plurality of incompletely mixed different liquids, forming the stream into droplets and impinging them against a surface.  The liquids may differ in viscosity or in composition or both.  Usually the spatter liquid has a higher viscosity than that forming in the background. The liquids are contained in hermetically sealed receptacles 7, 8, Fig. 1, into which air under pressure is introduced through pipe 14, reducing valve 13 and branch pipe 12.  The receptacles are connected by flexible conduits 54, 61 to a head 51, valves 56, 63 serving to regulate the flow of the liquids.  The spray gun, Fig. 4, is conventional except that the receiving chamber 41 is provided at the rear end with a passage 48 connected to the head 51 thence to conduit 54.  A tube 57 within the passage 48 opens at its upper end into chamber 41 and at its lower end into head 51 and thence to conduit 61.  The air pressure delivered to the gun through conduit 21, Fig. 1, should be one-third greater than that delivered to receptacles 7, 8.  In use, operating the trigger 19 opens air valve 25, causing discharge of converging jets of compressed air through orifices 35, 37, 38, 39, and simultaneously opens valve 44 to discharge through orifice 43 the composite stream of liquid which is broken up by the air jets into droplets of various sizes.
Patent GB-1483217-A (GB)
Title: Screen panel assembled from individual segments made of elastic materials
IPC: B07B1/46
Filed: 1974-08-02
Abstract: 1483217 Sieves HIEN LEHMANN AG 2 Aug 1974 34229/74 Headings BID and B2H A sieve panel, Fig. 1a, consists of prefrabricated, rectangular segments 1, 1' of resilient rubber or plastics which are interconnected at their side edges by a reinforced connector 3', the side edges of the segments having a non- planar configuration. The side edges may be provided with longitudinal grooves to form triangular, Fig. 1a, or rounded screw threadlike ridges, with grooves to form pyramidal projections or with recesses to form conical or fursto-conical projections. Alternatively the side edges may be formed with a flnage 13 Fig. 3a, which may also be provided with grooves or indentations, Fig. 3b. The connector 3', Fig. 1a, may be reinforced by wires or rods 4, 4', 5 in the form of a double crossed grid, Fig. 4. The wires or rods may have a circular rectangular cross-section and may be welded together at their points of crossing, an additional layer of wires or rods may be provided above or below the grid. To assemble segments of the type shown in Fig. 6, the latter are placed with their sieving surfaces 12 on a table with a gap between their edges. The reinforcement is inserted in the spaces between th edge webs 15 of the individual segments and rest on shoulders 14 provided below the flanges 13. The spaces are then filled with a bonding compound to form the reinforced connector. The edges of the perforated areas of the sieve may be provided with thickened reinforcing radiused portions 17, Fig. 6, or with reinforcing portions 19, Fig. 9, having straight, concave or, as shown, convex outer edges 20.
Patent GB-1131388-A (GB)
Title: Process for the polymerization of vinyl compounds
IPC: C08F2/00
Filed: 1966-07-26
Abstract: 1,131,388. Polymerizing vinyl chloride. A.C.S.A. - APPLICAZIONI CHIMICHE S.p.A. 26 July, 1967 [10 Aug., 1966], No. 34335/67. Heading C3P. Vinyl chloride is polymerized alone or with a minor amount of a comonomer continuously at below 0‹ C. using an organo-boron compound and an organic hydroperoxide catalyst system having a peroxide : boron molar ratio of 0À9-1À2 and maintaining the reaction time within 20% of the optimum time D (in minutes) as expressed by the equation: where T is the absolute temperature. Preferred catalyst is boron triethylcumene hydroperoxide; the boron compound may be present as an ether complex. A diluent such as ethyl chloride, methyl chloride or dichloroethane may be used. Specified comonomers are vinylidene chloride, mono-, di-, tri- or tetra-fluorethylene, vinyl acetate, methyl-, ethyl-, butyl- or allylacrylate or -methacrylate, allyl halide, acrylonitrile, styrene or ethylene. The reaction effluent is discharged into a mild aqueous alkali and the polymer suspension centrifuged, washed and dried. The polymers have molecular weights of 50,000-120,000 and have high syndiotacticity and second order transition temperature and are used to make fibres.
Patent GB-465093-A (GB)
Title: Improvements in apparatus for giving an indication of the presence of inflammable gases and vapours
IPC: G01N25/36
Filed: 1936-12-15
Abstract: <PICT:0465093/III/1> <PICT:0465093/III/2> In apparatus for indicating the presence of inflammable gases in the atmosphere by the expansion of a bi-metallic strip 13 placed above a plane 9, the contacts 7, 8 of the indicating device are separate from the bi-metallic strip and operated by a pin 10 connected to one of them and disposed within the range of movement of the strip.  The contacts are mounted on spring arms 4, 5 and enclosed in a casing 3 through which the pin 10 projects.  The strip is fitted to an adjustable mounting 16, and the burner has an adjustable shroud 21 for regulating the flame.
Patent GB-1514872-A (GB)
Title: Tantalum electrolytic capacitor
IPC: H01G9/08
Filed: 1976-08-18
Abstract: 1514872 Electrolytic capacitors AEROTRON Inc 18 Aug 1976 [18 Aug 1975] 34397/76 Heading H1M An electrolytic capacitor comprises a tantalum anode 18, a tantalum cathode 20, a tantalum casing 10 conductively connected to the cathode, one end of casing 10 being closed by a compression glass-metal seal comprising glass member 11 bonded to the casing wall and to tantalum feed through 12, the seal being maintained under compression by tantalum ring 14 fitting tightly round and brazed to casing 10. As shown, the other end of the casing is closed by tantalum plate 23 butt or laser welded to cathode 20 and laser welded at 27 to casing 10. In an alternative construction (Fig. 3, not shown) a U-sectioned header ring is welded to the casing mouth and the inner periphery of the header ring is provided with the glass-metal seal and compression ring.
Patent GB-1008288-A (GB)
Title: Improvements in sewing machine equipment of the profile pattern type
IPC: D05B39/00
Filed: 1963-08-30
Abstract: 1,008,288. Sewing machines. NECCHI S.p.A. Aug. 30, 1963 [Sept. 10, 1962], No. 34403/63. Heading D1G. Apparatus for stitching along a predetermined line comprises a sewing machine and a work holder rigid with a carriage adapted to follow the relevant movements between a rotary shaft and a template, the shaft rolling upon the template and being held in constact therewith by magnetic attraction, and the template being extensible to vary the desired length of an intermediate straight portion thereof. A sewing machine 1, mounted on a table 2 and driven by a motor 3, is adapted to sew around the edge of a collar blank X held in a work holder 5 movable with a carriage 14. The latter comprises a bar 12 which is rigid with work holder 5 and is slidable on rollers 17 mounted on a carriage 15, and a bar 18 carrying a roller 20 supported on carriage 20, the latter being provided with rollers 22 supported on fired bars 23. Work holder 5 comprises a fired clamp 7 and a lengthwiseadjustable clamp 8 carrying a pointer 10 movable over a scale 11. A motor 24, mounted on carriage 14, drives a shaft 26 which is held by magnetic attraction to the edge of a template 27 and rolls thereon to traverse the work holder under the needle 4 of the sewing machine. Template 27 comprises a straight centre section 27b and end sections 27a, 27c having straight inner portions 58, 59 which can telescope with respect to section 27b. Sections 27a, 27b, 27c are respectively mounted on plates 34, 35, 36 slidable on bars 28, 29 carried by fired bars 2a, 2b. A shaft 39, journalled in bar 2a and turnable by a wheel 38, has screwthreaded connections with plates 35 and 36, the arrangement being such that plate 36 moves twice as far as plate 35 on turning of shaft 39 to retain plate 35 equally spaced from plates 34 and 36. A bracket 54, fired to plate 35, carries two spacedapart magnetic plates 55 which constitute the section 27b. Magnetic plates 66, 67, separated by an electromagnet 70 and fired to plate 34, carry magnetic plates 60, 62 separated by a non-magnetic plate 61, plates 60, 61, 62 constituting the section 27a. Magnetic plates 68, 69, separated by an electromagnetic 71 and fired to plate 36, carry magnetic plates 63, 65 separated by a non-magnetic plate 64, plates 63, 64, 65 constituting the section 27c. A pointer 48 carried by plate 36 moves over a scale 49 corresponding to scale 11. Shaft 26 moves between the respective ends 72 of the template, and is adapted to operate respective microswitches carried by brackets 74 at the ends 72 for respectively starting and stopping the sewing operation. It is stated that the shaft 26 may alternatively be journalled in table 2 and template 27 mounted on the carriage 14.
Patent GB-1523892-A (GB)
Title: Partially impregnated capacitor
IPC: H01G4/22
Filed: 1975-08-19
Abstract: 1523892 Capacitors GENERAL ELECTRIC CO 19 Aug 1975 [16 Sept 1974] 34483/75 Heading H1M A capacitor comprising metallized plastics strips is wound sufficiently tightly to substantially eliminate air pockets between the turns and to provide such a bar to impregnation that, at least during the early life of the capacitor, only marginal regions at the roll ends become impregnated. Such a capacitor is suitable for use in the range 350 to 750 volts A.C., the impregnant at the roll ends minimizing edge corona effects and also taking part in heat transfer. The capacitor is wound on a rigid hollow or solid core at a winding tension above 200 g. per inch per mil thickness using heat shrinkable synthetic resin which -is subsequently heatshrunk to further rigidize the roll, and the roll inserted in a casing which is filled with the impregnant, suitably castor oil or an ester but not a halogenated diphenyl. The method of contacting the electrodes may be by School coating as shown in Fig. 3 by rising spiral flaps which do not add to the thickness of the roll. Narrow conductive strips 25, 26, 25<SP>1</SP>, 26<SP>1</SP> are wound into the roll, axially collinear with plastics strips 14, 13, 14<SP>1</SP>, 13<SP>1</SP> so that they abut the metallized coating on an adjacent strip.
Patent GB-398789-A (GB)
Title: Toy tractor
IPC: A63H17/36
Filed: 1931-12-12
Abstract: 398,789. Mechanical toys. BING- WERKE VORM. GEB. BING AKT.-GES., 215, Regensburgerstrasse, Nuremburg, Germany. Dec. 12, 1931, No. 34504. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 23, 1931]. [Class 132 (iii).] In a toy endlesstrack tractor the means for changing the direction of travel comprises a cam-acutated clutch and brake mechanism adapted temporarily to disconnect one of the tracks from the driving- mechanism and simultaneously to lock the disconnected track. As shown, one track b is carried by a wheel c freely rotatable on the driving shaft i and connectable thereto by a dog-clutch 4, 5. The clutch members are engaged and disengaged by a lever 6 controlled by a cam 12 connected to the driving mechanism. When the clutch members are disengaged an arm 10 of the lever 6 engages and locks a toothed wheel 3 rigid with the track wheel c. The steering mechanism may be disabled by operation of a wedge 20 co-operating with an arm of the lever 6. A similar mechanism may be applied to the wheel at the other end of the driving-shaft i to enable the toy to turn in the opposite direction.
Patent GB-605384-A (GB)
Title: Improvements in land rollers for breaking up heavy soils
IPC: A01B29/04
Filed: 1945-12-20
Abstract: 605,384. Land rollers. SZWANIC, J. Dec. 20, 1945, No. 34646. [Class 6(i)] A roller for breaking up heavy soils having two or more cylinders 3 provided with interchangeable projecting spikes 8 is provided with means to rotate the spikes automatically when in contact with the soil. The cylinders 3 are rotatably mounted on axles 4 rigidly fixed in a rectangular frame 1 fitted with drawbar means 2 for attachment to a plough. Depending arms 7, rigidly fixed at intervals along the roller axles 4, each carry a toothed member 9, each toothed member or segment 9 engaging gear wheels 11 carried on the inner ends of the cutter shafts in two adjacent rows. The toothed member or segment 9 being fixed, each cutter as if is carried past a toothed segment is made to revolve. An automatic cut-out 10 is provided for disconnecting the gear wheel 11 from the cutter when obstructions are encountered.
Patent GB-448238-A (GB)
Title: Improvements in scanning devices for television apparatus
IPC: H04N3/08
Filed: 1934-12-03
Abstract: 448,238. Television. TRAUB, E., 34, Dartmouth Road, Cricklewood, London. Dec. 3, 1934, No. 34655. [Class 40 (iii)] A low-speed or framing scanner 14 is associated with a high-speed or line scanner 9 in which each in turn of a plurality of stationary reflecting surfaces 12 receives light from, and reflects it back to, each of a plurality of reflecting or refracting surfaces 11 on the rotating- member 9. The reflecting faces of the polygonal drum 9 are lenticular and equally inclined to the axis. The reflecting faces 15 of the polygonal drum 14 are wider in the direction of rotation than the incident light. According to modifications : the rotating-drum 9 has two superimposed surfaces of cylindrical lenses, which respectively receive the light before, and after, its reflection at stationary internally reflecting prisms, which return the light along a path parallel to its original path, and the low-speed drum has a lens in each face, and a refracting or reflecting member within the drum diverts the light, Figs. 2 and 3 (not shown) ; the low-speed scanner comprises a ring of inwardly facing stationary mirrors, which surround a double-sided rotating member, and each of which receives light from, and reflects it back to, the rotating mirror, as described in Specification 419,120, Fig. 4 (not shown); the low-speed scanner is similar to the high-speed scanner described in connection with Fig. 1, and in Specification 425,552; an additional stationary reflector reflects the light back to the rotating-drum after its second reflection for a third reflection, after which the light is again reflected to the original stationary reflector and a fourth time to the rotating-drum, as described in Specification 440,055, Fig. 5 (not shown). For interlaced scanning, a refracting-prism is placed over, Fig. 6 (not shown), or a prism of suitable material is placed under, alternate mirrors on the drum 14, Fig. 7 (not shown). To produce three interlaced sets of scanning- lines, a displacing-prism is applied to one mirror, and a similar prism reversed is applied to a second mirror of each group of three adjacent mirrors, Fig. 8 (not shown). To reproduce colours the faces of the low-speed scanner have colour filters producing a succession of colours.
Patent GB-1106793-A (GB)
Title: Feeding device for animals, more especially pigs
IPC: A01K5/02
Filed: 1965-08-13
Abstract: 1,106,793. Animal feeding appliances. H. BIEHL. 13 Aug., 1965 [4 June, 1965], No. 34691/65. Heading A1M. A feeding device, particularly for pigs, comprises a trough 1 having a longitudinal feeding slot 2 and mounted so that it can be turned about its axis whereby the feeding slot is moved from a position in which it is accessible to the animal to a position in which it is inaccessible to the animal, the trough having circular tracks 8 at each end which rest on support rollers 11. The trough is turned by means of a worm 14 which engages a gear 13 on one end disc 9. An electric fence may be located above the pipe and the marginal edges 18 of the slot may be of metal through which a current is passed when feeding time ends. The worm 14 may be turned by a crank handle 15 or by an electric motor. In a modification the trough is turned by a pinion driven by a motor and engaging a toothed quadrant on an end disc of the trough. Alternatively the trough is driven from a motor through V-belt and pulley drive. The trough may also be turned under the control of a programmed device and an acoustic signal may be given at the beginning and end of the feeding time. The trough 1 is of fibre-reinforced plastic material.