baber/WOPTO huggingface dataset:
Patent GB-1062093-A (GB)
Title: A method of producing cast permanent magnet cores
IPC: B22D27/04
Filed: 1964-02-18
Abstract: 1,062,093. Moulds and mould materials; chills; casting processes. S. KOMAKI. Feb. 18, 1964 [Sept. 9, 1963], No. 6728/64. Heading B3F. Permanent magnet cores are cast in mould cavities (2) having side walls of porous porcelain and top and bottom walls formed by chill plates (7) or a table (6), Fig. 3 (not shown). A number of porous mould sections (1), each formed with a ring of six cylindrical cavities (2), Figs. 1, 2 (not shown) connected by radial gates (4) to a central hole (3), are stacked on one another, with annular iron chill plates (7) between them, on an iron table (6) to form a multiple mould and with a funnelled pouring cup (8) on a top chill plate (7). The mould is heated before casting and the chilling at the ends of the cylindrical magnet cores produces an anisotropic crystalline structure. Fig. 5 (not shown). Mould material.-Water is added to a mixture of:- 10% diaspore 10-15% α-alumina 5-10% matrix-forming fusible substance 30-40% chamotte 30-40% Kibushi clay then tar, coke, anthracite or sawdust is added and the mixture ground and the water content reduced. The material is compressed and moulded, then baked for 3-4 days at 1000- 1400‹ C. until the organic constituent is burnt away and a porous porcelain results.
Patent GB-349140-A (GB)
Title: Improvements in or relating to radio transmitting systems
IPC: H03C1/62
Filed: 1930-02-28
Abstract: 349,140. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Roberts, W. van B. ; 155, Hodge Road, Princeton, New Jersey, U.S.A.) Feb. 28, 1930, No. 6734. Convention date, April 2, 1929. [Class 40 (v).] In broadcasting and other radio transmitting systems, the signals are maintained at a uniform volume level before modulation so as to secure a uniform depth of modulation, the necessary variations in low-frequency amplification before modulation being accompanied by variations in opposite sense in the amplification of the modulated wave. The Figure shows an arrangement for securing this effect automatically. Signals arising in a microphone 1 are fed through transformers 3, 21 and amplifier 4 to a modulator 5 receiving its carrier wave from a line 6. The modulated wave is transferred through tuned circuits 42, 43 and amplifier 8 to an aerial 10. Part of the energy of the microphone circuit is diverted to an amplifier 38, rectifier 37 and smoothing circuit 32 .. 36, giving a direct current through a coil 31 proportional to the signal volume. If this volume is low, the armature 30 moves in a direction to increase the shunting resistance 23 across the microphone transformers, thus keeping the signal amplitude constant at the point where it is applied to the modulator 5. In order that receiving stations may respond to the signal volume variations, the armature 30 also controls the coupling of the post-modulation circuits, e.g. by regulating the capacity coupling 27, 28 between the tuned circuits 42, 43. Hand control may be substituted for the automatic control shown. The system reduces the effect of " strays " during periods of low signal volume.
Patent GB-277565-A (GB)
Title: Improved rotary vane pump
IPC: F04C2/352
Filed: 1927-03-10
Abstract: 277,565. Marks, E. C. R., (Naamlooze Vennootschap Appinge dammer Bronsmotorenfabriek). March 10, 1927. Fixed-abutment type.-The, rotor 3 of a sliding- rocking vane pump is made in two parts which are connected together and to the shaft 2 by bolts 4 in the space between central bosses 5, 6 on the end walls of the casing and the vanes 13, 14, which rotate about the, bosses, are each supported at two points being formed with two rings, for example, 9, 10 and 11, 12 respectively.
Patent GB-511708-A (GB)
Title: Vending of bottled beverages and means for that purpose
IPC: A47F7/28
Filed: 1938-03-04
Abstract: 511,708. Stands for displaying bottled beverages. TIZER, Ltd., and PICKUP; F. March 4, 1938, No. 6769. [Class 116] [Also in Groups XIV and XVII] A rack for displaying and facilitating the vending of proprietary bottled beverages comprises a skeleton metal stand with one or more advertising panels and one or more tiers of metal sockets shaped to support in an upright position bottles formed with a waist at the upper portion thereof. In the construction shown, the rack comprises a base a<1>, vertical side pieces a<2>, an upper advertising panel a' and two rows of sockets a', each row being formed by bending a strip of metal to the desired shape. As shown in Fig. 2, the bottles for use with the rack are formed at their upper portions with a shoulder d to produce a waist portion engageable by the sockets a'. The framework of the rack may be inclined rearwardly to prevent the bottles from falling from the sockets, but preferably, as shown, the sockets themselves are inclined for this purpose. A bracket c may be provided to hold a container for straws, and a bottle opener may - also be attached to the rack.
Patent GB-276258-A (GB)
Title: Improvements in or relating to knotting appliances
IPC: B65H69/04
Filed: 1927-03-11
Abstract: 276,258. Cook & Co. Manchester, Ltd., and Collins, T. March 11, 1927. knot-tying devices.-A hand-operated appliance for joining the ends of textile yarns or threads, especially those of a spring nature, such as artificial silk, comprises a frame 10, Figs. 3 and 4, mounted on a handle of known kind and carrying on a rotatable spindle 11 a knotting bill 12, which is opened and closed in known manner by contact of a projection 12<a> on one member of the bill with the edge of an opening 12b in an arm 16 on the frame 10. The spindle 11 is rotated by a quadrant 14 operated by a finger piece 15 and engaging a. worm 13 on the spindle, or a nut on the spindle may be operated by a lever. A holding hook 18 formed at the outer end of a side plate 17 is attached to one side of the frame 10 so as to be reciprocated at the proper times by a lever, pivoted at 23, and engaging a slot 26 in the quadrant 14 at one end and a slot 21 in the rear end of the holding hook 18 at the other end. A tightening and drawing-off arm 27 is pivoted at 28 to the opposite side of the frame, being constrained by a spring 29 to occupy a normal position against the side of the frame. This arm 27 carries a pressure member 31 pivotally and slidably mounted thereon at 32 and adapted to co-operate with a projection 30 at the end of the arm 27 to grip the yarns. The nipping mechanism is normally held open by the spring 29, but the pressure member 31 is raised and pushed forward against the projection 30, when the finger piece 15 is depressed, by the engagement of a projection 35 on the quadrant 14. with a projection 33 at the rear end of the member 31. Threads or yarns 35, 36 to be knotted are laid together in the space between the jaws of the nipping mechanism and passed across the holding hook 18 from the underside. In operating the rotary bill 12 loops the threads around themselves and the threads are then moved into alignment by the moving back of the holding hook 18. Further rotation of the bill by the finger piece 15 completes the knotting loops, the threads are severed by the knotting bill, being meanwhile held by the nipping mechanism 31, 33, and the twined threads are pulled off the knotting bill, and the knot tightened and released from the hook 18 by the forward movement of the arm 27 against the spring 29 as the projection 34 engages the projection 33. The knot formed has the shape of a figure eight.
Patent GB-1518894-A (GB)
Title: Diapers
IPC: A61F13/58
Filed: 1976-02-20
Abstract: 1518894 Diaper fastener COLGATE-PALMOLIVE CO 20 Feb 1976 [24 Feb 1975] 06821/76 Heading A3V Section 52 of pressure-sensitive tape strip 50 is secured to surface 28 of absorbent pad assembly 22 of a disposable diaper 20, surface 62 of a release sheet 58 being held against surface 26 by adhesive 68 located adjacent end 66 of sheet 58 and spaced from pad assembly edge 30. End 64 is secured to adhesive 55 on section 54 of tape strip 50. Surface 60 of the paper release sheet 58 may be silicone release coated to have less adhesive affinity than surface 62. Adhesive 58 may be a hot melt adhesive. Section 54 is releasably attached to surface 60. Release sheet 58 may terminate adjacent side edge 30 and end 64 may be unattached, or attached by an adhesive line 74. In Figure 7, end 64 of release sheet 58' is stuck to section 54 of tape strip 50 to prevent the latter being torn from the diaper when release sheet 72 is removed.
Patent GB-382191-A (GB)
Title: Improvements in or relating to quill floats and the manufacture thereof
IPC: A01K93/00
Filed: 1932-03-08
Abstract: 382,191. Moulding fishing-line floats. CAROLUS, G., 51, Rue du Long Bonier, Liege, Belgium. March 8, 1932, No. 6897. Convention date, Sept. 22, 1931. [Class 87 (ii).] A line float comprises a quill 1, the ends 2, 3 of which are slit and then reduced by inserting in a heated mould or between grooved rollers.
Patent GB-735428-A (GB)
Title: Spinning polyethylene terephthalate fibres
Inventor: MARSHALL IAN
IPC: D01D1/04
Filed: 1952-03-19
Abstract: Polyethylene terephthalate is melt-spun or melt-extruded by melting the polymer in an atmosphere of dry air and causing the molten polymer to pass through a spinneret or die to be formed into filaments, yarn or other shaped articles.  The polymer may be kept in a molten condition for about 20 minutes and the air may be dried by passing it through a column or bed of a dehydrating agent, such as silica gel.ALSO:Polyethylene terephthalate is melt-spun or melt-extruded by melting the polymer in an atmosphere of dry air and causing the molten polymer to pass through a spinneret or die to be formed into filaments, yarn or other shaped articles.  The polymer may be kept in a molten condition for about 20 minutes and the air may be dried by passing it through a column or bed of a dehydrating agent, such as silica gel.
Patent GB-286657-A (GB)
Title: Improvements in apparatus for repairing and renewing pneumatic tyres
IPC: B29D30/54
Filed: 1928-03-07
Abstract: 286,657. Hartley et Pons. March 7, 1927, [Convention date]. Vulcanizing, moulds for.-A mould for retreading tyres consists of shells A, A<1> of cast steel or the like, formed with tread ring, recesses R, R<1>, projections N, N' and grooves G, G<1>, to accommodate the beads, and recesses V, V<1>, opening exteriorly, which recesses after being cleaned up are closed by ring-shaped plates D, D<1> affixed by autogenous welding, to form steam chambers.
Patent GB-867140-A (GB)
Title: An improved mowing and harvesting machine
IPC: A01B43/00
Filed: 1956-03-07
Abstract: 867,140. Reaping machines. STEPHEN, J.G. June 5, 1957 [March 7, 1956], No. 7235/56. Class 6(3). A reaping machine comprises a mower with reciprocatory cutter, a rotor 24 above the cutter, a hood 34 partly enclosing the rotor, and an upwardly inclined rubber strip 33 joining the rear of the cutter to a suction duct 32 which is connected to the inlet port of a rotary suction fan 35. The machine frame 10 has a draw-bar 13, for attachment to a tractor, the drive to the machine being taken from the tractor power shaft through shafts 14 and 15. Drive to the knife-bar 20 of the cutter is through a pulley 16 on the shaft 15, a crank pulley 17, V-belt 18, and pitman 19. Drive to the shaft 23 of the rotor 24 is through bevel gearing 25, a shaft 26, and a belt 27. Sweep arms 29 on the rotor, each carrying a flap 30 of flexible material, extend the length of cutter bar 21 which is mounted on skids 31. The fan 35 is driven from the shaft 15 via a belt 36, shaft 37 and belt 38. The outlet from the fan 35 extends vertically upwards to a rotatable duct 39, whence the crop passes via a deflector (not shown) to a receiving vehicle towed by a draw-bar 40.
Patent GB-767582-A (GB)
Title: Improvements in or relating to furnaces for the heat treatment of metals
Inventor: PLATT GEORGE WILLIAM
IPC: C21D9/00
Filed: 1952-03-21
Abstract: 767,582. Heat treatment furnaces. FUEL FURNACES, Ltd. June 22, 1953 [March 21, 1952], No. 7283/52. Classes 51 (1) and 51 (2). In a batch-type heat treatment furnace fired by burners 17 positioned at the bottom of vertical passages 18 formed in the side walls 11, flues 4 formed in hearth pillars 5 direct waste gases successively into chambers 6 extending longitudinally of the hearth, through ports 7 into ducts 8 extending transversely of the hearth, and through ports 10 into waste gas flues 9 extending longitudinally of the hearth and vertically up the back wall to a stack (not shown). Each transverse duct 8 extends into a fan chamber 12, from which a fan 13 driven by a motor 14 re-circulates the waste gases to the furnace chamber through vertical passages 15 and ports 16 to mix with fresh hot gases from the burner passages 18. The fan motors 14 are switched on and off at a predetermined critical temperature which will not damage the fans, so that, when the furnace is operating at low temperatures, e.g. for tempering, the waste gases are re-eirculated, whereas, when the furnace is operating at higher temperatures, e.g. for hardening or normalizing, the gases are not re-circulated, but pass directly out through ports 10 and flues 9. Cooling air may be drawn into the fan chambers 12 by the stack draught through dampers opening automatically when the fan motors stop.
Patent GB-490131-A (GB)
Title: Process for the manufacture of oxide cathodes
IPC: H01J9/04
Filed: 1938-03-09
Abstract: 490,131. Thermionic cathodes. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. March 9, 1938, No. 7353. Convention date, March 9, 1937. [Class 39 (i)] In the manufacture of oxide coated cathodes, the core wire is drawn through an aqueous suspension of alkaline earth carbonates, the applied coating is dried at a temperature between 200 and 450‹ C., and the coated wire then drawn through a suspension of alkaline earth carbonates in a nitrocellulose solution. The operation may be repeated as often as required to produce a suitable thickness of coating. A small quantity, at most 1 per cent of barium nitrate may be added to reduce the viscosity of an aqueous suspension of barium carbonate. Water soluble organic compounds which decompose in vacuum and leave carbon are preferably added to the aqueous suspension to incorporate carbon uniformly in the emissive coating. Carbohydrates such as glucose and saccharose are referred to as suitable substances and they should be used in such amount that the carbon remaining after decomposition is at most 1 per cent of the alkaline earth carbonate.
Patent GB-574740-A (GB)
Title: Transmission mechanism
IPC: B61C9/22
Filed: 1942-06-01
Abstract: 574,740. Pneumatic power transmission. BELL, H. W. June 1, 1942, No. 7395. Convention date, June 3, 1941. [Class 8 (ii)] A pneumatic cushion is interposed between oscillators associated with driving and driven rotors and is provided with valves respectively actuated by the driven rotor and jointly by the two rotors which relieve the cushion pressure, the first during idle strokes of the driven oscillator and the second, limiting the compression during a forward stroke, of the driving oscillator and an active stroke'of the driven oscillator, in accordance with the phase of the latter. The driving rotor may be driven by an internal-combustion motor the exhaust of which heats the cushion. Fig. 1 shows a transmission in which the driving oscillator is a piston 4 and the driven oscillator is its cylinder, having a relief port 11 controlled by the relative movement of the two, and having a valve 13 actuated by an adjustable eccentric 10 on the crank of the driven rotor 9. Fig. 5 shows the oscillators as two pistons 24, 26 moving. in cylinder 25 having a port 32 controlled by a valve 42 actuated jointly, by cranks on the two rotors 'through linkage, and having also a valve 34 actuated by a driven eccentric 31. Fig. 9 shows the oscillator rods 53, 55 connected by a link 54 attached at its midpoint to a piston in a cylinder having a port 61 controlled by the piston (and thus jointly by the oscillators) and a valve 64 actuated by the driven eccentric 67. In a further form, Fig. 13, the rotors are each connected to a piston moving in parallel cylinders communicating through a passage having a relief valve 95 actuated from the midpoint of link 93, the cylinder of the driven piston having a valve actuated by a driven eccentric. Several apparatus as in Fig. 1 may be combined in a rotary apparatus, the piston rods being connected to a ring on a hub oscillated by the driving rotor through a connecting-rod, and the stems of the valves 13 being actuated by an external annular angularly adjustable cam; two or more such apparatus may be mounted on one driven shaft. Fig. 19 shows a rotary apparatus in which an oscillated driving disc carries vanes 169 which partition an outer space into working chambers 187 with ports 195 covered and uncovered by the discs and with valves 180 actuated by an adjustable cam 184. In a further form, several apparatus as in Fig. 13 are combined in two sets of upper driving and lower driven pistons, the sets being separated by the driving and driven mechanism, the working fluid being exhaust gases of an internal combustion engine cooled and compressed and exhausted subsequently either to atmosphere or back into the compressor feed; the exhaust also heats the cylinders.
Patent GB-419851-A (GB)
Title: Improvements in furnace grates
IPC: F23J1/00
Filed: 1934-03-08
Abstract: 419,851. Furnace grates. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.- (American Engineering Co. ; Aramingo Avenue, Philadelphia, U.S.A.) March 8, 1934, No. 7426. [Class 51 (i).] A reciprocating extension grate 10 for use at the rear of the retorts of an underfeed stoker, comprises fire bars having an upper horizontal portion 45, an inclined portion 46 and a vertical lower portion 47. The upper portion 45 is provided with lateral flanges engaging with corresponding flanges on adjacent bars and T-shape flanges 50 engaging with a transverse member 32 by which the bars are supported and reciprocated. The inclined portion 46 has horizontal ribs 57, 58 on opposite sides which co-operate with the ribs of adjacent bars to form horizontal steps extending between the bars. Horizontal ribs 74, 75 are provided at the sides of the vertical portions 47 and a strengthening rib is provided at 56. The side walls 30 of the grate frame slide in grooves provided in a support 26 and carry a transverse bearer 42 with which engage hooks 65 provided on the bars. The lateral bars of the grate rest on the side walls 30 and are inverted U-shape in section with apertures in their upper surfaces. A guard plate with air admission apertures is provided at 22 and retained in position by a locking pin 25.
Patent GB-235944-A (GB)
Title: Improvements in and relating to the manufacture of the diaphragms used in sound reproduction
IPC: H04R7/10
Filed: 1924-03-24
Abstract: 235,944. Jenkins, F. A. E. March 24, 1924. Laminated wood.-Relates to diaphragms for acoustic instruments such as gramophones, of the kind built up of a number of thin sheets of wood, with the grain of the individual layers, running in different directions. According to the invention, the angle between the directions of the grain of any pair of adjacent layers is the same throughout the diaphragm. The wood used may be sycamore. Layers of fine silk or other similar fabric may be interposed between the lavers of wood. The material is first waterproofed, and the individual layers 5 are then superposed and retained in position over the lower block 3 of a press, a graduated table 4 surrounding the press to facilitate arranging the layers in the required manner. After impregnation with a cementing compound, the layers are pressed together, dried, and finally cut to shape.
Patent GB-628501-A (GB)
Title: Stabilizer for sliding sashes
IPC: E05C17/64
Filed: 1947-03-18
Abstract: 628,501. Preventing rattling of windows &c. LARSON, A. March 18, 1947, No. 7478. [Class 20(iii)] For holding a sash 9 in alignment with the guideway formed by frame member 6 and side strips 7, a bowed metal strip S is inserted in a groove 14 in the sash side member and has an end portion 16 with laterally extending legs 17, for securing to the edge face of the sash on each side of the groove. An adjusting screw 24 passing through holes in the bowed part of the strip engages a threaded hole in its flange 32 so that by turning the screw which is accessible from above the groove the curvature may be varied. The strip may be located in the upper right hand corner of the sash diametrically opposite the point of connection of counterbalancing means.
Patent GB-580501-A (GB)
Title: Improvements in and relating to knitting machines
IPC: D04B9/26
Filed: 1944-04-22
Abstract: 580,501. Knitting-machines. COLE, B. T. R. REYMES-, (known as COLE, B. T.). April 22, 1944, No. 7499. [Class 74 (ii)] In excluding a yarn, for example, a splicing yarn 9, from the needles of a circular machine a tension or grip is applied to the yarn while it is still being knitted by the needles so that it breaks at or near a knitted loop and so that a loose end of visible length is not left on the fabric. The free end of yarn extending from the region of the grip floats along the line of needles in correct relationship to them. The yarn normally breaks over a sinker and one or more of the sinkers 4 may be given an additional or early forward movement by a notch wheel or other patterning device so as to crimp the yarn between the needles when the grip is applied to the yarn. The grip may be applied by the movement of the yarn guide 8 bringing the yarn 9 between the guide and a fixed member 13. In another arrangement, a movable gripping member is provided between the yarn guide and the needles. Alternatively, the gripping member may be arranged to grip the yarn as it passes through the yarn guide. The yarn guide may comprise a length of flexible tubing and the gripping may be obtained by squeezing the tube. The free end of yarn extending from the gripping means may be more positively fed to the needles either by associating it with a yarn already being knitted or by guiding it by the end of a flexible filament fed between the needles, or by directing an air blast on to it. Specification 9553/95, [Class 74], is referred to.
Patent GB-547311-A (GB)
Title: Improvements in and relating to wire coating devices
IPC: B05C1/08
Filed: 1941-06-13
Abstract: 547,311. Coating wires. BRITISH THOMSON-HOUSTON CO., Ltd. June 13, 1941, No. 7508. Convention-date, June 15, 1940. [Class 140] Apparatus for coating wires with enamel &c. comprises a driven coating roller 7 mounted on a shaft 9 so as to close an opening in the wall of a container 12 and grooved at 8 to engage vertically moving wires 1 which are coated by the enamel &c. 13 picked up by the grooves in the roller, the container 12 being movable about the shaft 9 into the dotted line position when the machine is not working such that the edge of the container moves the wires 1 out of contact with the roller and any enamel &c. dripping from the dies 4 which even out the coating may fall back into the container. The latter is fitted with a supply pipe 14, overflow pipe 15 leading to filter pump &c. and a doctor blade 16 having. fingers 17 extending into the grooves 8. Specification 509,193 is referred to.