baber/WOPTO huggingface dataset:
Patent GB-1096003-A (GB)
Title: Pressure control valve
IPC: F16K17/10
Filed: 1965-07-30
Abstract: 1,096,003. Valves. C. W. WIEGAND. July 30, 1965, No. 32813/65. Heading F2V. A pressure relief valve 12 is loaded by an adjustable spring 17 and as the inlet pressure approaches the predetermined actuating pressure a piston 41 acted upon by the inlet pressure moves and straightens a toggle 22, 24 so applying the additional loading a further adjustable spring 28 to the valve to prevent chattering and hence leakage. When the predetermined pressure is attained the toggle is forced over-centre to remove the additional loading and the valve opens against its main spring 17 only. The toggle which is reset by a lever 44 or a piston device is independent of the main spring and provides for normal valve operation should the additional loading means fail. The main spring may be dispensed with. The valve may be replaced by a burster disc with a reinforcing member actuated by the additional loading means.
Patent GB-537493-A (GB)
Title: Improvements in or relating to boats such as ships' lifeboats
IPC: B63C9/02
Filed: 1939-12-23
Abstract: 537,493. Lifeboats. FLEMING, I. R., and FLEMING, F. E. Dec. 23, 1939, Nos. 32821/39 and 4922/40. [Class 113 (i)] To improve the stability and buoyancy of lifeboats particularly those of standard dimension the seating capacity of which has been increased by arrangements such as are described in Specification 517,147, buoyant sheathing is detachably secured to the sides of the boat and comprises kapok mattresses 10 stiffened by longitudinal battens 12 and vertical bands 11 which terminate in hooks 14 engaging with staples secured to the gunwale. The sheaths are attached by lanyards 16 to eye bolts 17 in the keel. In a modification metal plating is spaced from the hull by thwart ship ribs attached to the hull and the intervening spaces are filled with buoyant material. Specification 141,299, [Class 113 (i)], also is referred to.
Patent GB-765236-A (GB)
Title: Improvements in turbine power plant
IPC: F22B1/22
Filed: 1954-11-12
Abstract: 765,236. Turbine power plant. KROHL, O. L. Nov. 12, 1954 [Nov. 21, 1953], No. 32886/54. Classes 110 (3) and 122 (3). A turbine is fed by a body of liquid which is caused to circulate in a vertically - disposed circuit of great length by applying heat directly or indirectly to the liquid over its ascending path so as to produce vapour molecules in the liquid. A turbine 1 enclosed in a housing 2 is connected to a tank 5 by conduits 3, 4 and a further conduit 6 containing a condenser 7. A vertical pipe 8 extends from the bottom of the tank 5 to the bottom of a deep well 13 where it is connected to a second vertical pipe 10. The pipe 10 extends into the housing 2 and terminates in a nozzle 14 which supplies the working fluid to the turbine 1. The pipe 10 has connected to it at its lower part a tube 11 connected to a source of superheated steam or hot furnace gases through a control valve 12. The pipe 10 may be surrounded by a steam jacket or casing in which is circulated waste steam or hot furnace gases. The pipes 8, 10 are preferably arranged in separate heat-insulated compartments 16, 17. The compartment 16 is preferably divided into two parts by a partition 15 to form sub-chambers 16a, 16b and the lower chamber 16a is more highly heated than the chamber 16b. A reservoir 20 is connected to the turbine housing 2 by an overflow pipe 18 and pressure equalizing connection 19. The pipe 10 may be divided into a plurality of small pipes arranged to discharge against separate stage wheels of the turbine. The arrangement is such that the heat supplied to the pipe 10 through its walls or by the injection of superheated steam or furnace gases or both causes vapour bubbles to be emitted throughout the entire bulk of the working fluid in the column 10, thus lowering its density and causing it to move upwards under the action of the water pressure in the column 8. If desired, the descending column 8 may be divided into a number of columns.
Patent GB-651703-A (GB)
Title: Improvements in liquid-electrode type ionic valves having resistance igniters
IPC: H01J13/38
Filed: 1948-12-21
Abstract: 651,703. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 21, 1948, No. 32933. Convention date, Dec. 31, 1947. [Class 38 (ii)] [Also in Group XL (a)] In a liquid-cathode discharge device 1 wherein a resistance igniter 3 is permanently immersed in the cathode 2, the igniter is additionally heated by a unidirectional current flowing from the igniter to the cathode. As shown, ignition impulses are received from a valve 4 connected to the same source as the device 1, and the additional current is supplied by a transformer 5 over a rectifier 6 during the half-cycles when no ignition impulse is applied to the igniter. In a modification, Fig. 2 (not shown), the ignition impulses are supplied by a condenser which discharges through the valve 4, and the transformer 5 has an adjustable primary tapping so that the heating may be varied. In a further modification, Fig. 3, the impulses from a condenser 7 pass through a D.C. saturable reactor 8, which controls their phase, and the heating current is fed through a further saturable reactor 11 which may be on either side of transformer 5, so that the heating may be automatically controlled in accordance with the temperature or load of device 1.
Patent GB-932159-A (GB)
Title: Integrating means
IPC: G01G23/18
Filed: 1961-09-14
Abstract: 932,159. Load indicating mechanisms. MERRICK SCALE MFG. CO. Sept. 14, 1961 [Nov. 15, 1960], No. 32978/61. Class 143. [Also in Group XIX] Apparatus for integrating a variable load travelling at a variable speed comprises a roller bearing 36 rotatable on a horizontal axis, a carrier 15 mounted on a vertical axis to rotate at a speed proportional to the variable speed, a plurality of roller bearings 22, 25 rotatably supported by the carrier 15, a ball 37 supported by the roller 36 in frictional contact with the rollers 22, 25 and rotated on its vertical axis by the rotation of the carrier 15, a carriage 38 mounted on an axis parallel to that of the roller 36 to pivot in proportion to the variable load, and a disc 45 rotatably mounted on the carriage 38 in frictional contact with the ball 37, whereby the speed of rotation of the disc 45 is proportional to the product of the variable load and variable speed. The carrier 15 has two brackets 18 supporting bifurcated fixtures 20 rotatably supporting the rollers 22 and two brackets 19 pivotally supporting bifurcated rockers 23 rotatably supporting the rollers 25 which are yieldingly urged towards the ball by springs 26. The disc 45, fixed on a shaft 65 rotatable in a bearing 44 in a frame 43 pivotally mounted on a rod 42 interconnecting the end plates 38 of the carriage, is urged into contact with the ball 37 by springs 46 anchored at opposite ends to the frame 43 and another rod 41 joining the plates 38. When the apparatus is used for integrating the weight of materials conveyed past a weighing station the carrier 15 is rotated by chain 30 and sprocket wheel 29 by the conveyer drive and the weighing mechanism acts through an arm 47 on the carriage 38 to rock it about its pivots 39 and move the disc 45 in accordance with the instantaneous load between its position vertically above the roller 36 representing zero load and the end of an arc of forty-five degrees representing maximum load. The integral is registered by a magnetic counter and a decimal wheel 64 on the disc shaft 65, a pin 66 on the wheel 64 actuating the counter through a lever 67 of a switch 68. The balance or zero position of the disc 45 is connected by means of an adjustment screw 58 and for calibration purposes the angular deflection of the disc 45 is varied by increasing or decreasing the movement of arm 47 by the radial adjustment of a roller 53 in the drive from the weighing mechanism.
Patent GB-175432-A (GB)
Title: Improvements in or relating to mechanical toys
IPC: A63H29/08
Filed: 1920-11-23
Abstract: 175,432. Cordon, W. Nov. 23, 1920. Mechanical toys.-Relates to mechanical toys of the kind in which a figure is operated by a stream of sand falling on the vanes of wheel, and consists in providing two hoppers A, A<1> having outlets arranged to direct two streams of sand on the vanes on opposite sides of the axle of the wheel so that the wheel can thus be rotated in either direction. In a modification, the hoppers may be arranged at opposite ends of the casing of the toy, the direction of rotation of the wheel being reversed by inverting the casing.
Patent GB-486437-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J25/76
Filed: 1936-12-02
Abstract: 486,437. Electron multipliers. FERNSEH AKT.-GES. Dec. 2, 1936, No. 33033. Convention date, Dec. 2, 1935. [Class 39 (i)] In electron multipliers wherein the electron stream is caused to impact alternately upon each of a pair of secondary emission cathodes the electrons being accelerated between successive impacts, one or both secondary emission cathodes 1, 3 are made of foil through either or both of which the high speed primary electrons are caused to pass to enter the multiplying chamber between the cathodes. The cathodes may be inclined towards each other, so that the multiplication of parts of the stream will depend on the point of entry. The positively biassed anode 2 may be a screen, net, grid, foil or ring ; it may be of mesh of varying size, giving a varying multiplication effect. The cathodes are of silver or silvered aluminium foil which may be oxidized and sensitized by caesium, beryllium or other alkali or combination of metals.
Patent GB-1403192-A (GB)
Title: Cutting tools
IPC: B23D65/00
Filed: 1971-07-14
Abstract: 1403192 Making cutting tools INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 14 July 1972 [14 July 1971 26 Nov 1971] 33111/71 and 55049/71 Heading B3A [Also in Division C7] A method of manufacturing a cutting tool comprises enclosing a body of tool-steel powder within a low alloy or plain carbon steel container, hot rolling the container to form the tool-steel powder into a coherent tool-steel insert and bond it to the container, and subsequently machining one or more surfaces of the container to expose a part of the tool-steel insert to form a cutting edge. The tool-steel powder may be precompacted, or packed loosely in the container and densified during subsequent rolling. The powder may be pre-alloyed material, e.g. powdered by atomization, or a powder mixture. A solid bar 10 of wrought or cast iron tool-steel is placed in a container 11  and a lid 12 welded at 13. Alternatively, a cylindrical powder compacted body is inserted into a container 14. The formed assemblies are preferably evacuated and de-gassed before sealing by welding and then soaked prior to hot rolling. The rolled composite band is then cut along its length through insert 15, and the container sides 16 are ground away to form a pair of strips with tool-steel edges 17 and a steel backing 18. Location holes are punched in backing 18 and the edge 17 milled to form cutting teeth 19 which are then set. The formed blade can be hardened by heat treatment. As well as saw blades, the method may be used to produce other tools requiring a tool-steel cutting edge, e.g. twist drills, shears, and woodworking drills.
Patent GB-331516-A (GB)
Abstract: 331,516. Automatic Telephone Manufacturing Co., Ltd., and Simpson, L. M. March 28, 1929. Drawings to Specification. Totalizators.-In an electric totalizator wherein the signals from the transmitting stations are collected by rotating switches and passed to the various counting-devices, transfer is effected by the utilization of one or more storage relays subsequently cleared by another rotating switch to cause operation of the counting-device of the next higher denomination. During the clearing operation the collection of the higher value signals is suspended. The description is a repetition of that contained in Specification 331,500.
Patent GB-928980-A (GB)
Title: Induction heating plant for metal ingots
IPC: C21D1/42
Filed: 1961-09-19
Abstract: 928,980. Inductive heating plant. BROWN, BOVERI & CIE A.G. Sept. 19, 1961 [Sept. 21, 1960], No. 33485/61. Class 39 (3). In an inductive heating plant which supplies heated metal ingots to an extruding press or cable sheathing press 9 and in which each ingot is conveyed to the press from one of a number of inductive heaters 1, 1<SP>1</SP>, 1<SP>11</SP> in which the ingots are uniformly heated, the head of each ingot is additionally heated in an inductive heater 5 before entering the press. An ingot 2 moving along conveyer 4 is halted, with its head within heater 5, by a stop 7. The stop also includes a limit switch which on operating stops conveyer 4, actuates a clamping device 6 which holds the ingot in position and switches on the heater 5. After a predetermined time or when the head of the ingot reaches a predetermined temperature a second switch operates which switches off the heater, releases the clamping device, swings the stop 7 out of position and restarts the conveyer 4 to feed the ingot to the press.
Patent GB-1407100-A (GB)
Title: Dispersion for sizing cellulose fibres
IPC: D21H21/16
Filed: 1973-07-13
Abstract: 1407100 Size composition KEMANORD AB 13 July 1973 [14 July 1972] 33489/73 Heading C3F [Also in Division D2] A composition, particularly useful for sizing cellulose fibres, consists of an aqueous dispersion of a ketene dimer with a cationic dispersing agent and an alkyl hydroxyalkyl cellulose (which may be either dispersed or dissolved). Both the alkyl and the hydroxyalkyl groups have from 1 to 7 carbon atoms and both may have their carbon chains interrupted by one or more oxygen atoms. Cationic polymers used are polyethylene imine, cationic starch, polyacrylamide, polyamide-polyamine and, particularly, polyvinylpyridine. The cellulose ethers used are ethyl hydroxyethyl cellulose and methyl hydroxypropyl cellulose. The dispersions are prepared by adding molten ketene dimer to an aqueous dispersion or solution of the other components at 50- 80 C. and then vigorously shearing and cooling. The dispersions are more stable than controls lacking an alkyl hydroxyalkyl ether. In examples the dispersions are mixed with various cellulose pulps and the mixture used for preparing paper.
Patent GB-482937-A (GB)
Title: Improvements in or relating to a cap closure seal
IPC: B65D41/12
Filed: 1937-12-03
Abstract: 482,937. Bottle and like capsules. AKTIEBOLAGET ALKA ALUMINIUMKAPSLAR. Dec. 3, 1937, No. 33533. Convention date, Dec. 3, 1936. [Class 125 (iii)] In a cap closure for a bottle or like container the rim 1 round the mouth of the bottle and the cap 3 are given a convexity. The convex shape is imparted to the cap before or during the capping operation, and is similar to that shape which would be produced by overpressure in the bottle. The cap has packing 5 which makes contact with a large part of the rim 1. The skirt 4 of the cap is pressed into the groove 8 by means of an elastic ring while the cap is pressed hard against the bottle mouth. The convexity of the cap 3 terminates at the sealing edge 2 and the vertical height of the top of the cap above this edge 2 is about equal to the radius of the opening of the container. The cap may be removed by being slit and may be provided with a tearing tab.
Patent GB-599122-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
IPC: F16F9/348
Filed: 1943-10-26
Abstract: 599,122. Hydraulic shock-absorbers. MONROE AUTO EQUIPMENT CO. Oct. 26, 1943, No. 33556/45. Convention date, Sept. 5, 1941. Divided out of 599,071. [Class 108 (iii)] In a hydraulic shockabsorber of the piston-andcylinder type, a plate 41, a piston 12, and a tubular member 42 are sleeved on the reduced end 43 of the piston-rod 14 and are held against a shoulder on the rod by a nut 44, flow of liquid between two sets of passages 45, 46 in the piston being controlled by spring valves 47, 48 arranged between the plate 41, the tubular member 42 and the piston, the resistance of the valve 48 being variable by a coiled spring 50 encircling the nut and tubular member and encircling between an abutment such as a ring 52 slidable on the tubular member 42 and an abutment such as a plate 54 threaded on the nut 44 and adjustable to vary the tension of the spring. Th's plate 54 is adapted to be rotated to adjust the spring 50 by a peg 57 extending upwardly from a closure plate 58 at the lower end of the cylinder. The closure plate and associated parts form the subject-matter of Specification 599,123, while the means for preventing leakage of liquid from the upper end of the cylinder along the piston-rod forms the subject-matter of Specification 599,071.
Patent GB-849712-A (GB)
Title: Current interrupting devices for power and lighting surges
IPC: H01T1/10
Filed: 1958-10-21
Abstract: 849,712. Lightning arresters. HUBBARD & CO. Oct. 21, 1958 [Jan. 17, 1958], No. 33566/58. Class 38 (4). A device for discharging heavy current lightning and power surges comprises a sleeve 26 made from ceramic fibres in combination with and surrounding a housing 7 also of fibres enclosing two spaced electrodes 8, 9 forming an airgap 10, with a layer of conductive glaze 27 interposed between the sleeve and the housing, the glaze extending substantially the length of the gap, and being connected to one of the electrodes. The lower electrode 9 is connected to earth and the upper electrode 8 through an isolating air gap 6 to the power lines 2. In the embodiment described a barrier plug 13 substantially fills the air-gap leaving a restricted passageway 14. An expansion chamber 15 is vented by a spider 16 having large exhaust vents discharging to a conduit 18. In the event of a sufficiently large surge the device is arranged to explode. In another embodiment the conductive glaze is sandwiched between at least two layers of ceramic fibres.
Patent GB-321072-A (GB)
Title: Improved construction of toy
IPC: A63H17/12
Filed: 1928-11-16
Abstract: 321,072. Gardner, L. F., (Bing Werke vorm. Geb. Bing Akt.-Ges.). Nov. 16, 1928. Roundabouts.-In a tov of the kind wherein an airship is suspended from a beam rotatably mounted on a tower, the airship is caused to travel to and fro along the beam. The beam 3 is mounted on a tower 2 and rotated by clockwork mechanism 4. A screw comprising a wire helix 12 coiled on a tube 11 ie mounted on a spindle 13 disposed longitudinally of the beam. A nut 24 carried by the screw has a depending hook 23 to receive the airship 22. The screw is rotated by the alternative engagement of pinions 14, 15 on the spindle 13 with a contrate wheel 8 on the tower. At the end of the movement in either direction, the nut 24 causes the helix 12 to slide longitudinally of the tube 11. This movement is communicated through the inturned ends 18 of the helix to the spindle 13 which is thereby reversed. Two passenger-carrying cages 27, 28 are caused to ascend and descend by operation of a winch 36.
Patent GB-1048280-A (GB)
Title: Photographic camera
Inventor: HUNT ROBERT WILLIAM GAINER
IPC: G03B17/12
Filed: 1963-08-26
Abstract: 1,048,280. Photoelectric control of cameras. KODAK Ltd. Nov. 26, 1964 [Aug. 26, 1963], No. 33674/63. Heading G2A. A camera has two photoelectric cells sensitive to different spectral regions, which control the position of a variable filter in the optical path so that the average spectral content of the light passing through the lens is constant. The output of one or both photocells may also be used to control the aperture or exposure time, so as to compensate for variations in the overall brightness level. In the form shown, photocell 1 is sensitive to the red end of the spectrum, and its output controls the setting of the iris diaphragm 5 behind the camera lens 6 by means of a control ring 4. Movement of ring 4 is also transmitted by means of gearing 7, 8, 9 to another diaphragm 11 in front of a blue-sensitive photocell 12. The output of cell 12 controls the rotation of a cam 15 which bears against a spring- loaded arm 16. As arm 16 pivots about one end 17, a graded filter or filter wedge 18 carried by its other end moves across the lens 6. The absorbtion of the filter is low or zero at the red end of the spectrum, but increases steadily towards the blue end, and thus modifies the spectral content of light passing through the lens. In an alternative arrangement, two graded filters are provided (e.g. one orange and one blue-cyan), and each filter can move to intercept the light path through the lens and the light falling on the corresponding photocell. Thus if the film in the camera is colour-balanced for a particular type of illumination, and is used to record a scene with a different type of illumination, the variation in colour balance is compensated for automatically.
Patent GB-486670-A (GB)
Title: An attachment to fruit grading and like machines to facilitate the inspection of the fruit being delivered thereto
IPC: B07B13/00
Filed: 1936-12-08
Abstract: 486,670. Step - by - step conveyers. BENSEMANN. E. H. T. Dec. 8, 1936, No. 33706. Convention date, Oct. S. [Class 78 (i)] [Also in Group II] In a conveyer for use with fruit-grading and like machines, and of the kind comprising a frame 17 which is reciprocated to impart an up-and-down motion to transverse bars 18 which, in conjunction with fixed bars 16, advance the articles along the conveyer, the frame is supported on links 20, pivoted to a framework 19, and is actuated by cams 22 at each side of the frame, engaging rollers 21. carried by the frame. A hand lever 27, pivoted at one end to the framework 19, may be moved along a cam plate 28 to engage a wheel 26 and lift the frame 17 clear of the cams 22 to stop the movement of the frame without interrupting the drive shaft 23. During its movement along the conveyer, the fruit may be inspected and any showing blemishes removed and placed on an adjacent " reject " conveyer band.
Patent GB-1500698-A (GB)
Title: Clamps for flat cables
IPC: F16L3/23
Filed: 1975-02-11
Abstract: 1500698 Flat cable clamps HAWKER SIDDELEY AVIATION Ltd 11 Feb 1975 [31 July 1974] 33869/74 Heading E2B A clamp for flat cables comprises a base block 1 or 21 with perpendicularly extending end flanges 2, 22 formed with serrations 4, 25 and a flat-bar-like retaining block 6, 28 formed with ratchet teeth 5, 25 for progressively engaging the serrations. In a first embodiment Fig. 1, the material of the clamp may be glass - filled nylon and elastomeric foam clamp pads 11 help grip one or more flat cables and prevent scuffing. In a second embodiment, Fig. 4 slots in the retaining block 28 receive the flanges 22 and the flanges 22 must be pressed inwardly to become perpendicular and allow ratchet - type engagement. The floor 31 of the base block may be slightly convex (as shown): alternatively or in addition the underside of the retaining block may incorporate a strip of expanded polyethylene to enhance clamping. Channels 32 in the retaining block are provided for receiving cable ties for attaching further cables.
Patent GB-1220762-A (GB)
Title: A packing for foodstuffs
IPC: B65D75/38
Filed: 1969-07-04
Abstract: 1,220,762. Packages. DANEGOODS KOBENHAVN A.S. 4 July, 1969 [4 July, 1968], No. 33928/69. Heading B8C. A display packing for foodstuffs comprises a box 3 with a lid 4 which is spring-urged about a hinge 7 into its closed position and which accommodates a piece of frozen meat 1 vacuumpacked in a film bag 2, a part of the latter being hinged to the box so that the meat can be swung out of the box 3 when the lid is opened, the lid tending to close after the meat has been replaced in the box. The spring at the hinge 7 comprises an angular plastics strip 8, the bag portion extending through a slot 6 in a folded-back portion of the front wall of the box and being secured to the latter. In a modification, Fig. 2 (not shown), the bag is connected at (11) to a plane sheet of cardboard at one edge, the sheet being folded back upon itself and shaped at the fold to the underlying part to form a spring-loaded hinge (13, 14) for the remainder of the sheet which is shaped like a box and acts as a lid (15).