baber/WOPTO huggingface dataset:
Patent GB-1504967-A (GB)
Title: Laying flexible material
IPC: A01G13/02
Filed: 1976-02-26
Abstract: 1504967 Laying sheet material on the soil PETER WARING Ltd P J WARING and L J PEARSON 26 Feb 1976 [28 Feb 1975] 8444/75 Heading A1E Flexible sheet material such as polythene, is laid down as a mulch or to cover the soil during fumigation treatment, by a machine having a supply roll 60 of the sheet material and a disc 72 pressing an edge of the material into the ground. A roller 76 tracking the disc then compacts the soil. If several overlapping strips are to cover an area, the other edge of the strip being laid is pressed by a "tacking" disc 74 into the ground to a depth less than that to which the first edge is pressed, and a compacting roller 76 compacts the soil just outside the path of the disc 74. Subsequently the next strip is laid in overalpping relation and the disc 72 presses the overlapping edges into the soil. In order to prevent a sheet splitting as its edges are forced into the soil, it is either lapped by being passed between skids 62, the lap being maintained by passing the sheet beneath a roller 66, or a plurality of skids bear alternately on opposite sides of the sheet to form corrugations.
Patent GB-767909-A (GB)
Title: Improvements relating to methods of securing together two parts in predetermined relative disposition
IPC: B21D37/10
Filed: 1955-03-23
Abstract: 767,909. Assembling punches and dies; bolting. OPEL AKT.-GES., A. March 23, 1955 [April 3, 1954], No. 8448/55. Classes 83 (2) and 83 (4). A method of securing two parts together in predetermined relative disposition comprises aligning the parts in said disposition applying adhesive cement, e.g. synthetic resin to contiguous portions of the parts, machining aligned holes in the two parts after hardening of the cement, securing the parts together by screws, bolts or the like and then removing the cement. In an embodiment, holes 17 for accommodating punches 18, 19, 20, 21 and 22 (Fig. 1) are first drilled in a bottom die 14 by means of templates and the die is positioned on the lower plate 10 of the press and secured by adhesive cement 26 spread around the outer edges of the die (Fig. 4). Holes for screws 15 and dowel pins 16 are then drilled through the die and plate. The punches 18 to 22 secured in punch plates 23 are inserted into the holes 17 and the upper die plate 11 is lowered on to the bottom plate, the guide bolts 12 fitting into sleeves 13. The assembly is then inverted and the punch plates which are correctly positioned on the upper plate 11 by the holes 17 are secured by adhesive cement 26. The plates are disassembled and holes for screws 24 and dowel pins 25 are drilled in the plate and punch plates. Finally, the screws and dowel pins are inserted and the cement is chipped away. The cutting blades 30 and 31 (Fig. 7) are secured in a similar manner, the top cutting blades 31 being fitted round the bottom cutting blades 30 after the latter have been secured by cement 26. The matrix 40 and die 41 (Fig. 8) are also secured in a similar way, the die 41 being fitted on top of the matrix after the latter has been secured by cement 26. Cotton is added to the cement to facilitate spreading.
Patent GB-105285-A (GB)
Title: Improvements in and relating to Glass Working Machines.
IPC: C03B33/06
Filed: 1916-06-15
Abstract: 105,285. British Thomson - Houston Co., (General Electric Co.). June 15, 1916. Drawing. - Relates to developments of the machine described in Specification 17602/13 for drawing glass rod and tubing, and comprises primarily a cooling-device which automatically follows the descending level of the molten glass during the drawing process. The glass rod 11 is drawn continuously from a receptacle 12, Fig. 3, by a series of grippers 10, Fig. 2, carried on an endless chain 5<1>. Pins on the grippers engage a chain 23 in passing, and, by means of intermediate linkage, drive a ratchet device 26, which thus feeds the cooling-device 13, Fig. 3, in a downward direction to follow the descent of the glass level. The cooling-device consists of a coiled water-pipe 33 terminating in a ring 31 and surrounded by a shield 36. The jaws of the grippers 10 are pressed into the gripping position by means of pivoted arms on the frame and are retained by latches until these are released for delivery of the glass rod to a receptacle 62. Each gripper 10, as it approaches the top of the drawing-device, engages a cam-surface 54, Fig. 2, on the cutting- device, which is thus swung back about a pivot 49 This movement causes one of the cutters of the cutting-device to swing open in a direction at right-angles to the plane of the paper, in which position it is retained by a catch. Further ascent of the gripper allows the cutting-device to return to the cutting positionwhereupon the gripper displaces a trigger 55 and releases the open cutter, which strikes the glass rod and severs the required length. The severed length is carried to a receptacle 59 provided with two parallel arms 57. The gripping-jaws release the severed length, and the succeeding gripper rotates the chain 23 and causes the arms 57 to swing into an horizontal position and deliver the severed length to the receptacle 62. A pivoted finger on the gripper ensures that the severed length, after release from the grippers, shall fall on the arms 57.
Patent GB-108669-A (GB)
Title: Improved Machine for Wrapping Round Tablets.
IPC: B65B11/04
Filed: 1917-06-13
Abstract: 108,669. Chocolat Tobler, Ltd. Aug. 8, 1916, [Convention date]. Packeting by wrapping-up.-Relates to machines for wrapping-up tablets and comprises means by which a tablet to be wrapped is passed together with a wrapper down through an aperture between at least three members serving to hold the tablet, over which a ring is situated which makes a movement in its own plane of such a nature that by its inner edge the edge of the wrapper projecting above the tablet is folded inwardly on to the top of the tablet. The folding-ring 62, Fig. 4, is carried by arms 63, 63' and is operated by a crank-arm 64 and a link 65 actuated by cams on the driving-shaft. Four revolving disks or rollers 60 having flanges 61 to support the tablet form the holding-arrangement shown in Fig. 4. The flanges are cut away at 61<1> to allow the wrapped tablet to drop. The cut-away part is expanded downwardly to free the tablet which slides down a channel and between two rollers arranged obliquely and covered with elastic material to press down the creases. The tablets are conveyed to apertures 9, Fig. 3, from magazines 3, 4 by a pusher slide 8 which has concave ends, the machine shown being a twin machine. A plunger 23 carried by an arm 21 extending from a sliding rod 20 presses the tablet and a wrapper, which has been cut off from a web, through an aperture with a well-rounded upper part situate below the aperture 9, the partially wrapped tablet being received between the members 60, Fig. 4, as above stated. The plungers 23 are formed with the lower part connected in an elastic manner with the upper part. The web from which the wrappers are cut by a knife 31, Fig. 3, is drawn off a roll 37 by geared rollers one of which is shown at 46. A roller 40 carried by an arm 44 which is counterbalanced and carries a brake band 44<1> acts as a tensioning arrangement. The roller 46 is mounted in open bearings so as to be readily removable and is pressed on by spring arms which can be turned aside. To draw back the web slightly during the upward movement of the knife 31 after severing the wrapper, an arm 57, Fig. 5, gripping the shaft of the lower feed-roller 41<1> frictionally, causes the roller to be turned backwards on release of the friction ratchet drive and by means of a cam 58.
Patent GB-880298-A (GB)
Title: A planting device for seedlings of root or bulb crops
IPC: A01C9/06
Filed: 1959-03-12
Abstract: 880,298. Planting machines. VYZKUMNY USTAV ZEMEDELSKYCH STROJU PRAHA. March 12, 1959 [March 17, 1958], No. 8516/59. Class 6(1). A planting machine for seedlings of root or bulb crops is provided with radially extending planting fingers 2 rotatable about a common axis and driven by an eccentrically mounted cage 5, As shown each finger 2 is slidably mounted in a guide 3 in the cage and the axis of rotation of the cage is so positioned that the circumferential velocity of the fingers in the upper part of their path is less than in the lower part of their path, and at the lowermost point is equal to the speed of the machine but in an opposite direction.
Patent GB-783557-A (GB)
Title: Improvements relating to the race rings of antifriction bearings
Inventor: MCNICOLL DAVID
IPC: F16C19/34
Filed: 1955-03-24
Abstract: 783,557. Roller bearings. BRITISH TIMKEN, Ltd. Jan. 30, 1956 [March 24, 1955], No. 8552/55. Class 12 (1). In a roller bearing comprising a split inner race 1, 2, the abutting faces 3, 4 of the parts 1, 2 are recessed or rebated to reduce the contact area and thus facilitate grinding of the faces for adjustment purposes. Only one face need be recessed or rebated if desired and, alternatively or additionally, the invention may be applied to a split outer race. In a modification, outer race parts 55, 56 are spaced apart by a distance ring 59 and the adjacent faces of the parts 55, 56 contain recesses 59a, 60. Alternatively, recesses are formed in the contact faces of the distance ring 59.
Patent GB-522883-A (GB)
Title: Improvements in and relating to the pneumatic operation of electric switches
IPC: H01H33/32
Filed: 1939-03-17
Abstract: 522,883. Pneumatic actuation of switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 17, 1939, No. 8556. Convention date, March 19, 1938. [Class 38 (v)] A switch is actuated by a piston which is operated by pressure gas and is associated with a control valve in such a manner that, after the termination of a movement of the piston to open or close tne switch, the valve is adapted to open a gas supply passage leading to the end of the cylinder which is to be operative in the next switching operation. In Fig. 2 the. piston 8 moving in cylinder 7 is operated by pressure gas from passage 3. In the position shown the poppet valve 14 is biassed by the spring 18 so that pressure gas from passage 3 is led by way of duct 10, chamber 11 and duct 13 to beneath the piston. On application of pressure the vent'17 is closed by leaf spring 18 and the piston is raised bringing valve 14 in contact with spring 19. This transfers the passage of pressure gas to duct 12 so that the piston is ready to make a return movement. The poppet valve is spring loaded at 15 so that if the piston stops in the middle of a stroke the valve takes up a definite position. The actuation of the switch is applied through rack and pinion 20, 21.
Patent GB-698601-A (GB)
Title: High pressure gas producer
IPC: C10J3/00
Filed: 1952-04-03
Abstract: 698,601. Gas-producers. KOPPERS GES, H. April 3, 1952 [April 3, 1951]; No. 8575/52. Class 55(i) In a high-pressure gas-producer in which the reaction space is surrounded by a series of vertical tubes through which flows a cooling medium, the tubes are dimensioned and arranged so as to withstand the pressures in the reaction chamber and an inner sealing wall is disposed within and supported by the tubes, the wall having only a thickness sufficient to withstand the heating stresses to which it is subjected in use. In the form shown, the producer consists of a vertical reaction chamber 1 closed at the ends by a refractory lined bottom 2 and cover 3. A hollow shaft 4 passes through the bottom 2 and carries a water cooled arm 5 which sweeps over a grate 6, ash falling through the grate discharging through an opening 9 in the bottom 2. The gasification medium is admitted at a high pressure beneath the grate 6. The cover 3 has a fuel supply opening 7 and a gas outlet 34. The reaction space is defined by a pressure tight, thin-walled, cylindrical casing 10 which is applied against a series of abutting, vertical cooling tubes 11. The tubes are held firmly together by clamping rings 12 inside which are forced wedge-shaped rings 13, the casing 10 thus being supported against any deformation due to the reaction chamber pressure. The tubes are welded into header blocks 16 and 17, the blocks being provided with ducts 18 and 19 for the inflow and outflow of the cooling fluid and with screw-bolts 20 and 21 for securing the bottom and the cover of the producer.
Patent GB-685596-A (GB)
Title: Control apparatus for gas producers combined with regenerative ovens
IPC: C10J3/24
Filed: 1951-04-12
Abstract: 685,596. Controlling supply of air to gas-producers. KOPPERS GES., H. April 12,1951 [June 26, 1950], No. 8577/51. Classes 51 (i) and 55 (i). The flow of air to the producer 1 supplying gas to two sets of regenerative-ovens is controlled by a valve 5 operated by a regulator 6 in dependence on the pressure in the gas outlet line 9, the valve also being independently controlled from the reversing mechanism for the oven heating gas flow by means of a solenoid 8 so that upon, before or in concert with the opening of the gas cocks 14 or 15 of the corresponding set of ovens the full air supply is fed to the producer after completion of the pause for the change-over. Valves 13, 16, in the air and steam supply conduits are operated by hydraulic piston mechanisms 17, 18, supplied with pressure fluid from a governor 21 having a valve 23 operated by a solenoid 24 also controlled by the reversing mechanism so as to close valves 13, 16 for the short period when both banks of gas cocks 14, 15 are closed. As the reversing pulley 30 rotates further and gas cocks 14 open by means of a draw cable 48, contacts 37, 38 in the circuit of solenoid 8 are bridged and valve 5 is fully opened. The circuit of solenoid 24 is broken by the same movement of the reversing pulley so that both air and steam conduits are opened. To ensure opening of the valves in case of damage to the switch a diaphragm 42 in the gas line 9 is caused by the suction produced by opening of the gas cocks to withdraw a bridge piece 43 from contacts 44 in the solenoid circuit. Specification 675,908 is referred to.
Patent GB-766244-A (GB)
Title: Improvements in or relating to circuit arrangements for producing a sawtooth currentin a deflector coil
IPC: H03K4/43
Filed: 1955-03-24
Abstract: 766,244. Saw tooth generating circuits; cathode-ray tube circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 24, 1955 [March 27, 1954], No. 8598/55. Classes 40(6) and 40(7) The invention relates to frame time base generators comprising a driver valve 1 having the deflector coils 5 coupled to its anode circuit and a capacitor 13 connected to its control grid which is charged through a resistor 14 and periodically discharged, for example through a blocking oscillator valve 17. According to the invention the saw tooth output wave is given a slight S shape to correct for the flatness of the screen of the cathode-ray tube by connecting the charging resistor to an integrating circuit 16, 19 fed from the anode of the valve so that the charging voltage is of parabolic form.
Patent GB-128169-A (GB)
Title: Improvements in Belt Fasteners.
Inventor: ROBSON STANLEY THOMAS
IPC: F16G7/00
Filed: 1919-04-07
Abstract: 128,169. Robson, S. T. April 7, 1919. Belt fastenings of the kind having slotted plates 1, Fig. 1, bent into loops embracing pins 4, and secured at their free ends to the ends of the belt, the pins being connected by links or hooks 6, are provided with special pins 4 shown in Fig. 2. The central portion 4<1> of the pin. which is engaged by the link 6, is displaced with respect to the end portions 5 by a shearing action, until its axis is out of alinement, but parallel to the axis of the portions 5.
Patent GB-684580-A (GB)
Title: Improvements in electron beam tubes
IPC: H03K21/08
Filed: 1950-04-06
Abstract: 684,580. Electron beam apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 6, 1950 [April 9, 1949], No. 8762/50. Class 39(i) An electron beam tube, suitable for use in a circuit arrangement in which the beam is held in determined positions by current distribution between at least two collecting electrodes and in which the variation of current to one collecting electrode with deflection voltage has a number of maxima and minima, is characterised in that one collecting electrode 15 has a number of apertures provided side by side in the direction of deflection of the beam, the width of the apertures being less than the width of the beam. The apertures are preferably slit shaped and this width is preferably progressively decreased from the largest 9, to the smallest 3; since it may be impracticable to make apertures 1 and 2 narrower than aperture 3 this length may be made smaller. At each end of the row there may be wide apertures 0 and 10, and behind the aperture 10 there may be a separate collecting electrode for use with a "fly-back" circuit. Additional apertures 19, 20 may be provided above and below the row and the larger aperture 20 may be in fact covered with metal gauze 21. A suppressor grid 18 may be provided and its wires are preferably aligned with the upper and lower sides of the apertures 19, 20. With this arrangement the anode current 1 may be made to increase progressively with the deflection, as shown in Fig. 2, there being a large maximum at each end; the peak at the left is used for the fly-back and may be made narrower by providing a narrow collecting fly-back electrode behind the aperture 10 or by arranging the fly-back electrode partly behind the electrode 15. Specification 684,552, [Group XL(c)], is referred to.
Patent GB-330960-A (GB)
Title: Improvements in or relating to the manufacture of lead yarn
IPC: B21C23/08
Filed: 1929-03-18
Abstract: 330,960. Butcher, W. T., Carrott, W., and Locke, Lancaster & W. W. & R. Johnson & Sons, Ltd. March 18, 1929. Drawings to Specification. Wire.-Lead yarn, for use as joint-packing and in making white lead, is made by extrusion. The lead, which may contain tin, antimony, copper, &c., is heated to 150-200‹ C., forced through a die with triangular or polygonal openings and wound on a drum or in a receptacle rotating on a vertical axis to give it a twist. The speed of extrusion is regulated to avoid overheating the die and this may be cooled. The yarn may be unwound from the bobbin or removed by cutting the strands across the face thereof. The die may be made by drilling circular holes, larger than the triangular holes required, part way through the die plate and as close together as pcssible and then punching the undrilled portion, from the same side, by triangular punches. The other side of the plate is then ground while held by a magnetic chuck. Specifications 2826/82 and 22092/08 are referred to.
Patent GB-314457-A (GB)
Title: Improvements in controlling alternating-current motors
IPC: H02K17/30
Filed: 1928-03-23
Abstract: 314,457. Grant, P., and Ruston & Hornsby, Ltd. March 23, 1928. Drawings to Specifcation. Systems for alternating-current motors only.- In starting a squirrel-cage induction motor fed by an engine-driven alternator, where the object is to get high starting torque as in the operation of excavating machines, the alternator field is strengthened at the same time as or immediately after the motor is switched in. The arrangement described comprises starting switches with additional contacts for short-circuiting resistance in the field of the alternator or of its exciter or in both fields. The alternator may feed two or more motors respectively actuating different working parts of an excavator.
Patent GB-472635-A (GB)
Title: Improvements relating to fire hydrant cover plates
IPC: G09F7/16
Filed: 1936-03-25
Abstract: 472,635. Fire-hydrant cover plates ; signs. LEADBEATER, J., and TRIGG, G. W. E. March 25, 1936, No. 8839. [Class 107] [Also in Group XVIII] A fire-hydrant cover plate comprises a metal base with a rubber facing secured to its upper surface and coloured to attract attention. In the embodiment shown in the Figure, the plate comprises a base 10, provided with a rubber facing 12, which is secured by a cement layer 13, and has inlaid rubber markings 14, such as letters, of a colour contrasting with that of the facing.
Patent GB-398906-A (GB)
Title: Improvements in the drying and heating of moulds for casting metals
IPC: D05B3/06
Filed: 1932-03-24
Abstract: 398,906. Wire, ribbon, and grid resistances. STONE & CO., Ltd., J., Deptford, and GOVIER, P. F., 12, Eastern Road, Brockley, both in London. March 24, 1932, No. 8890. [Class 37.] Moulds for screw propellers or other articles are dried or heated or both, prior to casting, by. electrical heating elements embedded in the mould material, said elements being of such a nature that they can be made to conform to the shape of the mould cavity. A resistance wire or strip 1 is wound zig-zag about the pegs of a former corresponding in shape to the article to be cast. The resistance may comprise a single or multiple tape of steel or alloy steel, which may be twisted, coiled, or undulating, adjacent lengths being spaced by insulators 3, Fig. 3, engaging holes 2 in the strips and being secured by partial rotation. In another modification insulators 6, Fig. 4, abut the lengths and may be secured by nails or screws 7 passing through holes 2. In other modifications the resistance is of tubular or channel formation and the insulators 15, Fig. 12, may have holes 16 and slots 17 so that they can be snapped over the resistance 13. The holes 2 in this case serve as vents. A low voltage is applied to the heater at first as the damp sand &c. to some extent short-circuits the current. Automatic voltage-control may be employed or when the mould is dry enough, as determined by the current falling off a signal may be given, or the circuit be broken, automatically. The heating element thus produced is removed from the former and embedded in the surface material 20, Fig. 1, of the mould.
Patent GB-227679-A (GB)
Title: Improvements in or relating to concrete
IPC: C04B28/18
Filed: 1924-04-08
Abstract: 227,679. White, A. E., (Tehafo Technische Handels-u. Forschungs-Ges.). April 8, 1924. Refractory substances containing Portland cement, silica, and alumina.-Concretes which resist heat and exposure to furnace gases consist of cement, an aluminous aggregate of the size of sand or gravel, and a substance which contains soluble silicic acid capable of combining with the free lime of the cement, and is in a state of subdivision approximating to that of the cement. The aluminous aggregate may consist of chamotte or comminuted bricks. The siliceous substance is preferably one that has been subjected to a high temperature, for example a volcanic substance such as phonolith, trass, or cernolith or an artificially prepared substance of similar character. A concrete described by way of example consists of 3 parts of cement, 1 part of trass and 11 parts of chamotte.