baber/WOPTO huggingface dataset:
Patent GB-812791-A (GB)
Title: Activated uranium dioxide and processes of producing the same
IPC: C01G43/025
Filed: 1944-07-22
Abstract: Uranium dioxide is prepared by reducing uranium trioxide with natural gas at an elevated temperature suitably in the range of 400 DEG  to 500 DEG  C.  By natural gas is meant a gas consisting essentially of methane.  According to an example a flask was swept clear of air by a stream of dried nitrogen, a charge of uranium trioxide was placed in the flask and the charge subjected to a stream of natural gas at 450 DEG  C. for one hour whereby uranium dioxide was formed.  The uranium dioxide formed by the process is highly reactive with ordinary air at room temperature and must be maintained in an atmosphere of carbon dioxide or a vacuum.  The uranium dioxide is particularly suitable for the production of uranium tetrachloride by chlorination with carbon tetrachloride as described in Specification 812,121.
Patent GB-542335-A (GB)
Title: Improvements in or relating to shock-absorbing devices
IPC: B64D1/14
Filed: 1940-09-11
Abstract: 542,335. Pneumatic shock absorbers. HANN, K. G., and ELLIOT EQUIPMENT, Ltd. Sept. 11, 1940, No. 14097. [Class 108 (iii)] Shock absorbers, especially for cushioning impact with the ground of objects falling from a height consist of one or more readily deflatable air containers B of cylindrical or like shape between end plates A, E of rigid textile or other material. Each container is made of gas proof fabric or rubber sheet and is perforated sufficiently to act as a cushion and to prevent bouncing. Light springs D restore the shape after impact. The end plates may be held by ropes having their ends splayed and stuck to the ends of the cylindrical containers.
Patent GB-568641-A (GB)
Title: Improvements relating to metal spraying
IPC: B05B7/22
Filed: 1943-08-30
Abstract: 568,641. Metal spraying. BALLARD, W. E. Aug. 30, 1943, No. 14106. [Class 69 (iii)] In metal spraying in which the metal wire or strip is fed through and fused by an electric field produced by a metal coil receiving an alternating high-frequency electric current, the propellant gas is directed to a point at or in advance of the melting position of the fusible metal and shielding means are provided to protect such fusible metal from the cooling effect of such gas until the fusible metal reaches the melting position. As shown, the inducting helix 4 connected in an alternating highfrequency circuit by terminals 6 is arranged in a cylindrical insulating casing 1 of porcelain &c. with end walls 2, 3, and has its coils more closely spaced at the part surrounding the melting position of the wire. The end walls 2, 3 support a sleeve of similar non-conducting material 10 which guides the fusible wire 17 and shield it from the cooling effect of the inert propellant gas which flows under pressure in the conduit 22 into the annular channel 13 and thence through orifices 14 to impinge in convergent streams on the molten metal thrown forward by the magnetic pinch resulting from the very high frequencies used and forces it through the nozzle 8, 9 as a spray. Specification 483,517 is referred to.
Patent GB-198548-A (GB)
Title: Improvements in and relating to paper clips
IPC: B42F1/00
Filed: 1922-05-19
Abstract: 198,548. Thompson, W. P., (Kline, F. J.). May 19, 1922. Clips, pivoted-jaw. - One of the handles of a spring-closed pivoted-jaw clip is provided with a downwardly pointing hook member 14, extending between the two handles, forming a wedge-shaped space for a wire &c. 17 on which the clip is hung. The ends 5 of the handles are annular, and the hook 1@ extends radially from the upper periphery of one of them. Ribs 10 act as strengthening means.
Patent GB-714928-A (GB)
Title: Improvements in or relating to suction cleaners and floor polishers
IPC: A47L11/206
Filed: 1951-06-14
Abstract: 714,928. Suction cleaners. SCHOTTLE, R., [trading as SCHOTTLE KOMMANDIT-GES., R.]. June 14, 1951 [June 14, 1950], No. 14119/51. Class 8 (1). [Also in Group XXIII] A suction nozzle 22, Fig. 2, in front of a rotary brush housing 1 of a floor polishing machine (see Group XXIII) is adapted to be moved to a position on the machine to allow the connection of a suction tube (not shown), whereby the machine may be used for suction cleaning only. The nozzle 22 extends round the front of the housing 1 and is pivoted on pins 23 and in the working position shown, is connected by a spring-biased conically bored sleeve 2,6 Fig. 5, located in a housing bore 25 to a suction space 7 and a fan inlet. Nozzle height is adjusted by a screw (not shown) and suction may gain access to the brush space 6 through slots in the pins 23 and the housing 1. On swinging the nozzle 22 upwardly about the pins 23 it is held by a ball catch 34, and the sleeve 26 projects forwardly under its spring 29 for the insertion of a hose connection in the conical bore 27.
Patent GB-860288-A (GB)
Title: Improvements in windscreen washers
Inventor: BODDY JOHN
IPC: B60S1/48
Filed: 1958-05-05
Abstract: 860,288. Windscreen washers. TRICOFOLBERTH Ltd. May 5, 1959 [May 5, 1958], No. 14307/58. Class 138(1). A windscreen washer comprises a container with a nozzle outlet and a movable wall, means for applying force to the movable wall to reduce the volume of the container and a ratchet connected to the wall and co-operating with a detent by means of which the reduction of volume may be alternatively arrested and permitted. On Fig. 1 a bellows 2 is held between two plates. 4, 6, is acted on by a compression spring 14 and has a ratchet co-operating with a cable operated detent 20. In operation, the bellows 2 is extended by a screw 24, held in place by the detent 20, the screw 24 is withdrawn, the bellows filled with liquid through the screw hole and the hole is plugged. Successive operation of the detent 20 allows liquid to be expelled through an outlet 32. In Fig. 2 a container 36, 40 is connected to a reservoir 84 through a valve box 80, has a compression spring 42 acting on a diaphragm 38 with a ratchet 78 cooperating with a cable operated sping-loaded sliding valve block 46 with a detent 80. In operation, the valve block 46 is released and under the action of its spring the detent 80 engages the ratchet 78, a passage 70 coincides with an inlet 66 in the container and under the influence of vacuum, e.g. from an engine manifold, the diaphragm 38 is drawn down, against the action of the spring 42, and fills from the reservoir 84. Successive operation of the valve block releases the ratchet 78, admits atmosphere through the inlet 66 and passage 68 and thus allows the spring 42 to raise the diaphragm 38 and expel fluid through an outlet 86.
Patent GB-253145-A (GB)
Title: Improvements in dough dividing and shaping machines
IPC: A21C5/00
Filed: 1926-06-07
Abstract: 253,145. Gechter & K³hne Akt.-Ges., (Assignees of Meyer, O., and Schõfer, G.). June 8, 1925, [Convention date]. Stream-cutting machines extrusion machines; rolling machines. - A machine for dividing and moulding dough comprises a hopper leading to a series of feeding tubes through which the dough is extruded by screws, a reciprocating knife adapted to sever the extruded dough into portions, trays carried by endless aprons to receive the portions, and a moulding plate operating over the trays with a circular motion. As shown, the hopper 8 leads to a trough 6 divided by partitions into compartments each fitted with a screw 7 and a feed tube 9. The screws are driven simultaneously through worm gear 4, 5, preferably through interposed spring clutches so that the feed ceases upon excessive. pressure. A knife 10, supported by rods 11<1>, is reciprocated over the ends of the tubes 9 by cams 12 on a shaft 20 acting on levers 11 against the action of springs 17. Trays 29, supported by aprons 28, receive the dough portions, which are worked by a moulding-plate 31 supported upon crank pins 32 of members 33 driven from the main shaft 13 through gearing 16, 36, 35, 34. The aprons 28 are supported by rollers 18, 27 and are driven intermittingly through the roller 18, which is operated from the shaft 20 through a cam 21, lever 23, and ratchet gear. The plate 31 is preferably provided over each apron with a series of moulding-recesses 40 of progressively increasing depth; it is pressed down by springs 32<1> and is raised by levers 39 operated by cams on the shaft 20. The shaft 4 is driven from the main shaft through variable friction gear 1, 3.
Patent GB-1169495-A (GB)
Title: Action Toy.
Inventor: BISCHOFF GUSTAV H
IPC: A63H33/26
Filed: 1968-03-25
Abstract: 1,169,495. Magnetic activated toys. HANDIPAC Inc. 25 March, 1968, No. 14370/68. Heading A6S. A toy which has two parts comprises a base 1, including an elongated strip of magnetic material 5, with laterally extending magnets of alternately different polarity, 6 and 8, with a non magnetic space 7 between the successive poles and an object part 13 which is prefreably animate, carrying a magnet 16 which is adjacent to the strip when the object is resting on it. As the object is moved manually lengthwise along the strip the magnet is alternately attracted and repelled. The magnet is also connected to at least one element 15, of the object to produce an alternating movement of the object part. In Figs. 2-4, 8 to 10 and 11 and 12 (not shown) the action toy has two feet which lift alternately, a head which moves from side to side and a body which jumps upwards and forwards respectively.
Patent GB-342620-A (GB)
Title: Improvements in and in connection with machines for driving and extracting piles and the like
IPC: E02D7/16
Filed: 1930-05-10
Abstract: 342,620. Piles. WOODFIELD, C. H., 2, Holland Park Mansions, London, and WILLIAMS & SONS, Ltd., S., Dagenham Dock, Essex. May 10, 1930, No. 14420. [Class 68 (ii).] A pile-driving or pile-extracting machine is mounted on endless tracks to enable it to be moved over soft ground, and the vertical framework is made in two parts hinged together so that it may be folded and pass under telegraph &c. wires and other overhead obstructions. A piling-machine frame is shown diagrammatically by the lines 5, 7, 10, 12, 12a, 10a, 5, in the Figure, the upper part 5, 7, 10, 10a being hinged at 10 to the lower part 10, 10a, 12a, 12, and lowered by paying- out a rope 4 and hauling on a rope 6 attached to drums 8, 9 respectively. The rope 4 passes over sheaves 1, 2 on the lower and upper parts of the frame respectively, and the rope 6 over a sheave 3 until it straightens near the position X. The sheave 3 is then removed, and a triangular frame 10<1> carrying .a sheave 11 is attached to the base of the upper part of the framework. The rope 4 is then passed over the sheaves 2, 11, 1 and gradually lowers the upper part to the positions Y, Z.
Patent GB-1395172-A (GB)
Title: Image display system
IPC: H04N3/36
Filed: 1973-03-26
Abstract: 1395172 Television MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 26 March 1973 [25 March 1972 (2) 31 March 1972(3) 13 April 1972] 14476/73 Heading H4F An image relating to the information on a film 85 or transparency 98 may be produced on a flying spot scanner 81 by feeding back the output of a photo-detector 86 via switch 100 and amplifier 87, and this image may be displayed on scanner 81 superimposed on a television picture received via aerial 95, or generated by a camera or magnetic recorder 97, 107. The fed-back signal may be directly or inversely proportional to the output of photo-detector 86, and may additionally be supplied to a printer 104, television display 91 and projector 89 producing a display on a screen 90. A pointer 103 pointing to a part of transparency 98 will consequently be reproduced at 103<SP>1</SP> on screen 90 and also on television display 91. The output of photo-detector 86 may alternatively be fed to a memory 105 for subsequent read out. Scanner 81 may be used as a memory by coating its faceplate with a material which retains an image if bombarded with high energy electrons, this material being coated with an ordinary phosphor which is responsive to low energy electrons. To reduce flicker without reducing resolution scanner 81 may be provided with a mixture or laminations of two phosphors, one having a relatively long persistence time and emitting visible radiation, and the other having a relatively short persistence time and emitting ultra-violet radiation, photo-detector 86 being sensitive to ultra-violet radiation, and possibly being provided with an appropriate filter. In alternative embodiments (Figs. 10, 11, not shown) two or more stations are provided each station having a scanner and associated photodetector, the output of each photo-detector being fed back to its associated scanner and also being transmitted to be displayed on the scanners of the other stations. For colour reproduction three photo-detectors with associated coloured filters are used, scanner 81 operating line-sequentially or framesequentially. In this case colour balance adjustment knobs (41-43, Fig. 4, not shown) may be provided. If positive feed-back is employed a D.C. input may be supplied to photo-detector 86 to ensure a minimum intensity of scanner 81 even if no light is incident on photo-detector 86.
Patent GB-291027-A (GB)
IPC: B25D11/12
Filed: 1928-05-17
Abstract: 291,027. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). May 24, 1927, [Convention date]. Percussive hand tools.-The striker 22 of an electro-mechanical hand hammer is actuated by an electromotor 12 through bevel gearing 14, connecting-rod 16 and two springs 19, 21, of which spring 19 is weaker than that of the spring 21. The motor 12 may be replaced by a flexible shaft actuated externally.
Patent GB-276759-A (GB)
Title: Improvements in or relating to alternating current rectifying devices
IPC: H01L21/16
Filed: 1926-06-09
Abstract: 276,759. Ruben, S. June 9, 1926. By solid unidirectional conducting devices. - Relates to dry surface contact rectifying devices in which aluminium and cupric sulphide electrode elements are employed, and consists in providing a sulphide coating on the aluminium electrode before assembly. The coating may be formed by immersing the aluminium in a bath of sodium sulphide solution and, boiling if a thicker coating is desired, or the coating may be produced electrolytically, the voltage being gradually increased during the process to a maximum value which is maintained until the current falls to a negligible amount due to the increased resistance of the coating. Fig. 1 shows a single set of elements, 1 being the aluminium, 2 the coating, 3 the copper sulphide element, and 4 a conducting element such as brass assembled between terminal members 6, the requisite pressure being maintained by a spring, washer 7. A number of sets arranged in -series may be employed for higher voltages. Fig. 3 shows the arrangement adopted for heavier currents, the arrangement comprising a pair of coated aluminium elements 31 having cooling fins 38 and co-operating with cupric sulphide elements 33 arranged in contact with a central conducting element 34.
Patent GB-492983-A (GB)
Title: Improvements in or relating to electron discharge valves
IPC: H01J19/38
Filed: 1937-05-26
Abstract: 492,983. Thermionic valves. MALPAS, H. A. May 26, 1937, No. 14599. Drawings to Specification. [Class 39 (i)] An electron-discharge valve has an anode, a thermionic cathode, preferably indirectlyheated and a control grid of wire having a diameter of 0À1 1 mm. or less bent into a helix and supported by notched metal rods which are wholly or partially coated with a thin layer of insulation so that the turns of the helix are insulated from one another and at their minimum distance from the cathode are separated from it by 0À5 mm. or less. The insulation may be the oxide of a metal such as nickel, aluminium or magnesium and need not be of higher resistance than a few hundred ohms. The grid wires may also be coated with insulation where they touch the support. In a modification, notched thin-walled tubes of compressed magnesium oxide are slipped over wire rods. More than one grid may be provided. Very large amplifications are said to be obtainable with a single valve.
Patent GB-736560-A (GB)
Title: Improved fluidised hydroforming process
IPC: C10G35/14
Filed: 1953-05-26
Abstract: In a continuous hydroforming process wherein a naphtha is contacted with a dense, turbulent bed of fluidized catalyst at elevated temperature and pressure, catalyst is transferred to a regeneration zone, and regenerated catalyst returned, the "mobility factor," i.e. the superficial velocity in feet per second, of the fluidizing gas divided by the "coarseness index" of the catalyst is in the range 0.3-4.  "Coarseness index" is the ratio of weight per cent of catalyst particles of particle size above 74 m  (200 mesh) to weight per cent of particle size below 44 m  (325 mesh).  The superficial velocity is maintained between 0.1 and 1.6 ft./sec.  The effects of "mobility factor" on surging in the reactor, octane number of product, carbon formation and gas production are illustrated.  A reforming operation is described wherein the catalyst is a Group 6 oxide or sulphide on a support such as alumina or zinc-alumina spinel, reaction conditions being 800-1050 DEG  F., 5-500 p.s.i.g., space velocity 0.1-2 wt./hr./wt., residence time 0.5-5 hours, regeneration temperature up to 1200 DEG  F.
Patent GB-697052-A (GB)
Title: Improvements in or relating to radiation counter tubes
IPC: H01J47/08
Filed: 1951-06-20
Abstract: 697,052. Geiger counters. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 20, 1951 [June 23, 1950], No. 14632/51. Class 39(i) A radiation counter tube containing an ionizable gas and an admixture of a halogen is characterized in that the total or a considerable part of the total surface area of the metal parts of the tube in contact with the said mixture consists of chromium sesquioxide. The chromium sesquioxide prevents absorption of the quenching gas and should be provided on electrodes and other metal parts of large surface area, for example the cathode and the transverse partition sometimes contained in counter tubes for hard rays, but may be omitted from the anode when the latter is in the form of a wire or thin rod. In the embodiment shown the cylindrical cathode 1 which may be of copper is provided on the inner surface with a coating 2 of chromium sesquioxide and the anode 3 may also be provided with a similar coating. A window 5 which may be of mica is hermetically sealed to the cathode 1 by a ring 6 formed by melting pulverulent glass. Alternatively, the electrodes may be made of an alloy containing chromium, for example iron and chromium in a weight ratio lying between 1:0.25 and 1:40, and the protective coating obtained by preferential oxidation, or the electrodes may first be chromium plated and at least the surface of the chromium layer then oxidized to chromium sesquioxide. A suitable filling comprises a mixture of neon and/or argon and some tenths of a per cent of chlorine or bromine at a pressure of 10 mm. of mercury.
Patent GB-692174-A (GB)
Title: Improvements in or relating to brushes and more particularly to street sweeping brushes
IPC: A46B13/00
Filed: 1951-06-20
Abstract: 692,174. Rotary brushes. MATERIEL DE VOIRIE. June 20, 1951 [June 28, 1950], No. 14640/51. Class 19. A rotary brush, more particularly for use on road sweeping machines to sweep gutters has the bristles or other sweeping members attached to a flexible and deformable disc secured to the end of a driving shaft. In Fig. 3 the wire or rubber bristle tufts are looped through a rubber disc 1 and may be held in position as shown or by a further rubber disc overlying the top of the bristles (Fig. 1, not shown). The bristle disc is secured to the rotary shaft 5 and may be stiffened by providing a stiff backing disc 9 also secured to the shaft and a rubber cushioning ring 10 between the discs. Alternatively the stiffening may be effected as shown in Fig. 4 by a conical rubber cushion 11 above the disc the pressure of air in the cushion determining the stiffness. In a further embodiment (Fig. 2), the bristles are secured to radial flexible metal strips.
Patent GB-182413-A (GB)
Title: Improved means or apparatus for use in the burning of pulverised fuel
IPC: F23K3/00
Filed: 1921-02-25
Abstract: 182,413. Buell, R. N. Feb. 25, 1921. Closure members.-A four-way valve comprises an outer casing 41 with four openings, as shown, and an inner rotatable member 43 provided with ducts 44, 45, either of which may communicate with an inlet and an outlet in the casing.
Patent GB-529396-A (GB)
Title: Improvements in high speed switches for alternating current circuits
IPC: H01H9/56
Filed: 1939-05-17
Abstract: 529,396. Electrically-released switches; protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. May 17, 1939, Nos. 14735 and 14736. Convention dates, May 17, 1838, and July 6, 1938. [Class 38 (v)] A high-speed switching relay for A.C. circuits comprises an armature 5 biassed mechanically by a spring 7 from engagement with a holding magnet 1 having a high magnetic holding power but a low range of magnetic attraction for the armature, and two coil systems of which 2 is a D.C. holding coil and 3 carries the A.C. to be interrupted, which latter, upon first attaining a given peak value such as to reduce the resultant magnetization to substantially zero, permits the bias to effect release of the armature and initiate separation of the switch contacts. The armature is caused to seat firmly on the magnet, by being pivoted to a leaf spring'44 passing through a gap between the magnet-poles and is of rustless iron. In Fig. 3, the line AW(=) represents the holding D.C. and AW(~ ) represents the AC., the normal value of which is shown dotted and the excess-value by curve Ik. An impedance relay, Figs. 5, 6 (not shown) may be obtained by energizing the holding-coil 2 from the rectified voltage of the line carrying the current in the coil 3. Specification 269,177, [Class 38 (v)], is referred to. The Specification as open to inspection under Sect. 91 states also that the winding 3 may be energized by rectified A.C. and refers also, with drawings, to a duplicated arrangement of windings and to a tertiary winding. This subjectmatter does not appear in the Specification as accepted.
Patent GB-495654-A (GB)
Title: A process for the production of fine fibrous mineral material
IPC: C03C13/06
Filed: 1937-05-27
Abstract: Mineral wool is obtained by blowing a melt containing at least 70 per cent of at least two oxides belonging to the group, silica, titanium oxide, alumina and chromium oxide, and containing at least 20 per cent of silica and titanium oxide on the one hand and at least 20 per cent of alumina and chromium oxide on the other. The melt may also contain up to 30 per cent magnesium oxide but should not contain more than 10 per cent, preferably 5 per cent, iron oxides and calcium oxide.  The melt may be blown by jets of superheated steam, hot air or compressed air containing combustible material such as combustible gases, oil or coal dust which is burnt.  The mineral wool may be used for heat insulating purposes and for filtering with or without binders.