baber/WOPTO huggingface dataset:
Patent GB-1324304-A (GB)
Title: High voltage electrostatic air filter
IPC: F24F3/16
Filed: 1971-08-19
Abstract: 1324304 Air purifiers AEROPUR SA 19 Aug 1971 [23 Dec 1970] 39007/71 Heading B2J [Also in Division F4] An air purifier for removing dust and for sterilizing bacteria &c comprises a duct with opposed walls over which water or other liquid is made to flow, means for blowing or sucking air through the duct, an electrode assembly suspended in the duct between said walls and a high voltage DC generator connected to the electrode assembly, the electrode assembly being formed in two sections, the first section comprising spaced plates extending transversely to the air flow through the duct and the other section comprising flat plates parallel to the air flow. In a first embodiment (Fig. 1), a fan 1 draws air through a duct formed by walls 4 over which water runs from a distributer 6. The electrode assembly 3, 5 comprises a lower portion 3 with serrated plates p (Figs. 2 and 3 not shown) and an upper portion with flat plates 5a. The high voltage generator is shown at 8. The expelled air may be heated at 10. In a second embodiment (Fig. 4), the electrode is U-shaped with the two sections 3 and 5 on separate legs. A heater 12 for the water is provided so as to control humidity. The first embodiment may be modified (Fig. 5, not shown) to serve as an air purifier above a cooker or work bench and may include means for perfuming or disinfecting the water. An active carbon filter may be provided at the outlet to absorb any residual ozone. The electrodes may be covered with insulator elements 15, 16 (Fig. 6, not shown).
Patent GB-820858-A (GB)
Title: Improved height control system for vehicle fluid suspensions
IPC: B60G21/06
Filed: 1958-01-02
Abstract: 820,858. Adjusting body height; pneumatic springs. GENERAL MOTORS CORPORATION. Jan. 2, 1958 [Jan. 18, 1957], No. 39123/58. Divided out of 820,857. Classes 108(2) and 108(3) The description is the same as that of Specification 820,857, but the claims are different Specification 820,856 also is referred to.
Patent GB-802116-A (GB)
Title: Isomerisation process and catalyst therefor
IPC: C07C5/27
Filed: 1956-12-27
Abstract: Catalysts for reforming alkanes having 5 to 7 carbon atoms are prepared by co-precipitating alumina and silica and filtering to form a filter cake, precipitating chromic oxide and filtering to form a filter cake, slurrying the mixed filter cakes and drying the slurry, the proportions being such as to provide 60 to 90 mol. per cent of alumina, 5 to 35 mol. per cent of silica and 5 to 35 mol. per cent of chromic oxide.ALSO:Alkanes having 5 to 7 carbon atoms and light petroleum naphtha alkanes are reformed at 700 DEG  to 1050 DEG  F., at a pressure of 0 to 750 lbs. per square inch gauge, in the presence of 0 to 5 mols. of hydrogen per mol. of hydrocarbon, using a catalyst containing 60 to 90 mol. per cent of alumina, 5 to 35 mol. per cent of silica and 5 to 35 mol. per cent of chromic oxide.  In examples normal pentane is isomerized to isopentane, and a light naphtha is treated to increase the octane number by isomerization and dehydrogenation.
Patent GB-1233408-A (GB)
IPC: B21K1/06
Filed: 1968-08-16
Abstract: 1,233,408. Making axles; forging; straightening. SCHLOEMANN A.G. 16 Aug., 1968 [5 Sept., 1967], No. 39332/68. Headings B3A, B3E and B3H. A railway vehicle axle is made by forging a billet into a round cross-section bar of diameter equal to that of the axle wheel seats 5, forging one end of the bar between dies 1 in a series of strokes during which the bar is slowly withdrawn, forming the wheel journals 6 between dies 2 and then performing the same operations on the other end of the bar. The billet has a square cross-section and is fed from a furnace (A), Fig. 7 (not shown), into a drawing machine (C) and a forging press (E) where it is formed into the bar. It is then fed to a manipulator (H) of a drop-forging press (G). The press (G) has straightening pedestals 3, 3<SP>1</SP> on the press axis and open-ended dies 1, 2. The bar is rotated by the manipulator as it is withdrawn from the dies 1 during forging. The amount of withdrawal determines the separation of the wheel seats. The bar is then displaced sideways and the wheel journal 6 forged between dies 2. The bar is then turned round and the other end forged in the two pairs of dies. After forging the formed axle is straightened between pedestals 3, 3<SP>1</SP> and fed to a cooling bed (J).
Patent GB-1125019-A (GB)
Title: Vulcanizing presses
Inventor: PECH VACLAV
IPC: B29D30/06
Filed: 1966-09-02
Abstract: 1,125,019. Moulding tyres. CHEPOSZVODY CHEMICKHO U POTRAVIN- RSKEHO STROJRENSTV, BRNO, OBOROV¦ PODNIK. 2 Sept., 1966 [2 Sept., 1965], No. 39353/66. Heading B5A. A tyre vulcanizing press includes a rotary table 5 performing a step-by-step movement and carrying a number of vulcanizing mould chambers, each chamber comprising a lower section 49 fixed to the table and an upper section 1 removable from the lower one. At a station adjacent the periphery of the table vulcanized tyres are removed from their mould chambers and unvulcanized ones supplied. A tyre is vulcanized during one complete revolution of the table, and when it reaches the said station the upper section of its chamber automatically connects at 10, Fig. 2, with the lower end of a support 11 carried by a stationary post 14. A bayonet-joint between the two chamber parts is disconnected and the support 11 is raised; the tyre is raised from the lower chamber part by a fluid motor 44 driving a bell-crank 45 which raises a vulcanizing diaphragm 78. A tyre-removing mechanism comprising a linkage 57, 66, 64, 56, 71 &c. operated by fluid motors 53 and 62 and including rollers 60 guided in a vertical slot 61 is then brought from within the post 14 and lifts and tilts the tyre which is conveyed on rollers 70, 74 to a position between a disc 6 fixed to the table and a disc 33 carried by a support 34 slidable in a guide 36. The disc 33 is moved towards the disc 6 by a fluid motor 15 and locked thereto, to thereby secure the tyre to the table during a further complete revolution thereof. During this time the tyre is inflated by air supplied via the disc 6. With the tyre removal linkage retracted to within the post, the open chamber is ready to receive a fresh tyre conveyed thereto on a hook 28, from which it is to be removed by expansible chucks 21 carried on a plate 20 pivotally supported on a vertically adjustable arm 18 mounted on an axially rotatable column 17 attached to the post. On receiving the tyre from the hook, the chucks are expanded by a fluid motor drive to grip the tyre, the plate 20 is turned to the horizontal and the column 17 rotated to bring the axes of the tyre and chamber into alignment; the arm 18 is lowered to bring the tyre on to the diaphragm whereupon the tyre is released from the chucks. The tyre loading device, which is operated by several fluid motors, is now returned to its initial position ready to receive a further tyre. The support 11 is lowered, heating medium introduced into the diaphragm and mould chamber, and the chamber parts interconnected.
Patent GB-1183036-A (GB)
Title: An Improved Fastener
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B5/12
Filed: 1966-07-04
Abstract: 1,183,036. Releasable fastenings. F.T. PRODUCTS Ltd. 3 July, 1967 [4 July, 1966; 6 Sept., 1966], Nos. 29828/66 and 39813/66. Heading E2B. A resilient clip for retaining a bolt 11 having a shank 29 and a head 28 in an elongate moulding 13 which is formed with a web 32 joining a pair of inturned longitudinal flanges 30, 31 having spaced facing edges, comprises a substantially flat base 15 the width of which is greater than the gap between the facing edges of the flanges of the moulding, a resilient pressure member 22 overlying the base and formed integrally therewith and adapted to engage the web of the moulding to resiliently press the base against the flanges, a slot 16 extending into the base from an edge thereof and adapted to receive the shank of the bolt, the clip having means for resisting withdrawal of the bolt laterally from the slot. In the construction shown the slot has two transverse cuts 18, 19 approximately half way along its length formed in opposite edge portions and the material lying between the cuts 18, 19 and the edge 17 of the base is bent upwardly to form a pair of projections 20 and 21 which constitute the means for resisting withdrawal of the bolt laterally from the slot. The pressure member is in the form of an arm which has two wing elements 24, 25 which are inclined upwardly away from the base 15. In an alternative construction the pressure member is longer than that shown and extends beyond the opposite edge of the base to that from which it extends and it is bowed downwardly and formed with two outwardly extending wing elements which are approximately aligned with the base when the pressure member is unstressed. In this construction the slot is formed with facing arcuate recesses intermediate its length which form a part circular seat for the shank of the bolt and the means for resisting withdrawal of the bolt laterally from the slot are portions of the base laterally on each side of the slot between the arcuate recesses and the edge of the base; these can be resiliently prised apart to accept the shank because the slot extends into the pressure member which thereby acts as a spring for the base. The corners at the entry end of the slot are bent downwardly to form prongs which in use are located between the flanges of the moulding and guide and align the clip in the moulding.
Patent GB-1076646-A (GB)
Title: Production of crystalline polystyrene
IPC: C08F32/00
Filed: 1964-09-30
Abstract: Crystalline polystyrene is made by polymerizing styrene in a hydrocarbon medium in the presence of a Ziegler catalyst i.e. the complex formed between (1) a halide of a transition metal wherein the metal is in a valency state less than maximum; and (2) an aluminium trialkyl or an aluminium dialkyl monohalide, and a lithium alkyl or cycloalkyl or a cadmium dialkyl or dicycloalkyl in which the alkyl or cycloalkyl group or groups have 1 to 6 carbon atoms.  The hydrocarbon medium may be a mixture of aliphatic and aromatic hydrocarbons. A zinc dialkyl may also be included in the polymerizing mix as a molecular weight regulator. The catalyst may be preformed or formed in situ.  The polymerization may be carried out in the presence of hydrogen. Exemplified catalysts are (1) triethyl aluminium reacted with cadmium chloride, further reacted with antimony trichloride, and then reacted with hydrogen-reduced activated alpha-TiCl3; (2) as (1) but wherein the triethyl aluminium is first reacted with ZnCl2 before reaction with CdCl2; and (3) wherein CdCl2 is replaced by lithium chloride. The polystyrene obtained is in the form of fibres, and is substantially insoluble in boiling methyl ethyl ketone.
Patent GB-916225-A (GB)
Title: Improvements in or relating to electric time switches
IPC: G04C23/16
Filed: 1959-11-25
Abstract: 916,225. Time switches. HELIOWATT WERKE ELECTRIZITATS A.G. Nov. 25, 1959 [Dec. 4, 1958], No. 40008/59. Class 38 (5). One or other of two switches 14 to be controlled by a timing mechanism (not shown) is selected by a disc 12 having cams 13. The cam is rotated one way or the other from the normal position shown against the action of one of the return-springs 15 until an arm 17 operable by the timing mechanism is engaged behind an abutment 16<SP>1</SP>, the selected switch then being open. At the required time, the arm 17 is raised to release abutment 16<SP>1</SP> and then lowered to engage an abutment 16<SP>11</SP>, the switch thus being closed. Later, the abutment 16<SP>11</SP> is released and a further abutment 16<SP>111</SP> engaged, the switch then being re-opened. The disc may then be returned to its central position by moving it downwards (Fig. 2) sufficiently to disengage arm 17 and abutment 16111.
Patent GB-1461316-A (GB)
Title: Feeler devices
IPC: G01B5/20
Filed: 1974-09-13
Abstract: 1461316 Feeler device MAAG GEARWHEEL & MACHINE CO Ltd 13 Sept 1974 [14 Sept 1973] 40031/74 Heading G1M A feeler device comprises a feeler 16, 17 movably mounted on a carrier 1, means 27 for serving movement of the feeler, elongate spring biasing elements 8 extending longitudinally of the feeler and acting in opposition on the feeler, an adjustment member 2 mounted on the carrier to be displaceable in either direction and connected to the spring elements 8 through elongate connection elements 4 extending longitudinally of the feeler, the connection elements moving in opposite directions with displacement of the adjustment member to increase the biasing force of one or other of the spring elements, whereby the feeler is urged towards alternate end positions in dependence on the direction of displacement of the adjustment member from the neutral position and with a force dependent on the extent of the displacement. The feeler comprises a rod 16 pivotally mounted within a carrier tube I by means of a pair of leaf-springs 15, and a tip 17 held in engagement therewith by means of a spring 18 which permits pivoting of the tin 17 relative to rod 16 if excess force is applied. Spring stops 24 limit movement of rod 16 in its plane of movement, and stops 23 prevent movement in a perpendicular plane. Spring elements 8 take the form of leaf-springs attached to bell-crank levers 6 which are pivoted at 7 to the carrier and which are acted on by connection elements 4. Elements 4 are moved longitudinally when the member 2 rotates by means of cam face 3 on member 2. The sensing means 27 is an inductive transducer. Contact segments 10 provide a signal indicative of the direction of rotation of member 2. The feeler device may be used to measure gear flanks.
Patent GB-402374-A (GB)
Abstract: 402,374. Swaging-machines. SINGER MANUFACTURING CO., Elizabeth, New Jersey, U.S.A. Aug. 12, 1933, No. 22544. Convention date, Sept. 1, 1932. [Class 83 (iv).] A rotary swaging machine with two pairs of dies in series has provision for varying the stroke of the second pair of dies which act on the blank after the first pair of dies has operated thereon. The inner dies 2, 2a are guided freely in the outer dies 1, 1a, which two pairs of dies together with the hammers 8 are mounted in a diametral slot in the flanged front end 31 of the hollow spindle 3, the hammers 8 coacting with a ring of hardened steel rollers 5. Die guides 9 between the hammers and the dies have parallel surfaces 11 engaging the backs of the dies 1, 1a and inclined surfaces 12 engaging the backs of the dies 2, 2a. As the swaging operation proceeds the dies are moved to the right under the pressure of the blank 13 gripped in the tongs 14 and the blank is reduced as shown in Fig. 4 by the dies 1, la ; on the continued movement of the dies to the right the inclined guides 12 at length bring the inner dies 2, 2a into action on the blank whereby the constriction E is formed as shown in Fig. 2.
Patent GB-1130043-A (GB)
Title: Acrylic coating compositions
IPC: C09D133/12
Filed: 1966-09-09
Abstract: 1,130,043. Coating metal. E. I. DU PONT DE NEMOURS & CO. 9 Sept., 1966 [30 Sept., 1965], No. 40335/66. Heading B2K [Also in Division C3] Coating compositions suitable for application to metal substrates comprise, as film forming component, a mixture of two methyl methacrylate copolymers, one of which also contains units including amino-ester groups and, optionally, units of an unsaturated carboxylic ester and/or styrene, and the other of which also contains units of a compound of the formula where R<SP>5</SP>-CO is a C 4 -C 22  acyl radical derived from a saturated or unsaturated fatty acid, R<SP>6</SP> is hydrogen C 1 -C 4  alkyl or a group -CH 2 -OCO-R<SP>5</SP>, R<SP>7</SP> is hydrogen or C 1 -C 4  alkyl, and R<SP>8</SP> is the residue, minus the carboxyl group and α-carbon atom, of a C 4 -C 22  saturated or unsaturated fatty acid, and optionally units of acrylonitrile, an unsaturated carboxylic ester and/or styrene. The copolymers are dissolved in one or more organic solvents and the composition may be pigmented with, for example, magnesium silicate, zinc oxide, barytes, silica, zinc dust, aluminium flakes or powder, titanium dioxide, Wollastonite, carbon black, monastral red, blue or green, indo blue, chrome yellow, copper bronze, green gold or iron oxide. The coatings can be applied by handspray or electrostatic spray, or by dip or flow coating, and can be dried or baked at 220F for 20-30 minutes. The coatings become insolubilised after exposure to UV light or sunlight. In Examples, the compositions are applied to steel panels which have previously been (a) primed (b) coated with a conventional acrylic lacquer (c) coated with a pigmented nitrocellulose lacquer (d) coated with a thermosetting acrylic enamel (e) coated with an alkyd enamel or (f) coated with an alkyd melamine enamel, the surfaces in some cases being buffed before applying the composition of the invention.
Patent GB-1489964-A (GB)
Title: Nuclear reactor fuel element grid plate a fuel element grid cell structure and a method of manufacturing a grid plate
IPC: G21C3/34
Filed: 1975-10-02
Abstract: 1489964 Fuel elements BABCOCK & WILCOX CO 2 Oct 1975 [3 March 1975] 40355/75 Heading G6C A fuel element grid structure for stabilizing an array of elongate fuel rods comprises two sets of parallel plates interlocked so as to form an array of rectangular cells, bosses protruding from at least some of the plates to engage the respective fuel rods and corrugations formed in at least some of the plates protruding from the plate surfaces a predetermined distance into the cells but being spaced from the respective fuel rods. The corrugations serve to control the coolant pressure loss through the grid structure while also stiffening the grid plates. In the plan view of Fig. 3, bosses 26, 27 formed in the edges of plates 22, 23 engage and grip a fuel rod 30 while below the plane of the drawing, protruding in the transverse midplane of the cell 21, bosses 31, 32 formed in plates 24, 25 also grip the fuel rod 30. Corrugations 33, 34, 35, 36 protrude from the plates 22, 23, 24, 25 toward the centre of cell 21, being impressed in the plates just below the level of the bosses 26, 27. The corrugations 33, 35 formed in the plates 22, 24 extend across the entire width of the cell 21 and have bulbous transverse extremities 43, 44 and 45, 46 that protrude into the cell and tend to reinforce the carriers 37, 40, 41, 42 of the cell. Bulbous transfer extremities 47, 50 and 51, 52 on the corrugations 34, 36 do not protrude as far from the grid plates as do the corresponding extremities 43, 44 and 45, 46 on the corrugations 33, 35. The specific pressure loss that the structure produces can be selected through an appropriate choice in number and depth of corrugations in each cell. By this means, the hydrodynamic characteristics of a reactor core replacement fuel element can be matched to the corresponding characteristics of any one of a number of fuel elements of entirely different design.
Patent GB-1535638-A (GB)
Title: Locking cap for fuel tank with remote unlocking control
IPC: B60K15/04
Filed: 1977-09-29
Abstract: 1535638 Remotely controllable locking cap NEIMAN SA 29 Sept 1977 [6 Oct 1976] 40522/77 Heading B8T [Also in Division E2] A pivoted cap 4, e.g. a petrol filler cap, is held closed against the action of spring 5 by capture of pin 26 thereon within a cam slot 24, Fig. 2, of a member 20 rotatable about a fixed shaft 17, member 20 itself being held in the locking position by a pin 18 on a slide 16 spring-urged to the left, Fig. 1. Release of cap 4 is occasioned when electromagnet 9, 11, 11<SP>1</SP>, Fig. 4, is energized thereby attracting armatures 12, 12<SP>1</SP> pivoted to casing 3 at 14, 14<SP>1</SP> and to slide 16 at 15, 151 thereby causing the slide to move to the right to release member 20 which then rotates anticlockwise, Fig. 2, under the action of spring 21 to release in turn pin 26. It is stated that the pivoted double armature arrangement with intermediate slide 16 reduces the risk of inadvertent cap release due to impact forces acting on the armatures.
Patent GB-1480385-A (GB)
Title: Switch for use in telecommunications
IPC: H01H67/30
Filed: 1974-09-18
Abstract: 1480385 Automatic exchange switches COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT - ALCATEL 18  Sept 1974 [20 Sept 1973] 40630/74 Headings H1L and H1N In a telecommunications switch in the form of a matrix of main relays H at the cross points of a set of "horizontal" wires and a set of "vertical" wires, a control device, comprising an auxiliary relay CD0 and a holding relay MT0, is associated with each "vertical" wire input to operate the switch. The auxiliary relay CD0 has two windings. In operation to interconnect "vertical" line wires A<SP>1</SP>0, B<SP>1</SP>0 with "horizontal'? line wires A1, B1 respectively, earth potentials are applied to points H1 and M<SP>1</SP>0 to cause relay CD0, whose first winding is supplied through break contact mt0, to operate and thus cause relay H<SP>0</SP>1 to operate via contact cd0 of relay CD0. Operation of the contacts of this relay CD0 allows its second winding to be supplied with current and relay MT0 to operate. Operation of relay MT0 cuts off the supply to the first winding of relay CD0, which however remains operated because of the current in its second winding, and applies the earth to the "vertical" wire V0 via contact mt0 when the holding winding of the main relay H<SP>0</SP>1 is supplied with current via contact h<SP>0</SP>1. Other contacts of relay H<SP>0</SP>1 have made contact between the line wires. On cancelling the earth at H1, relay CD0 restores but H<SP>0</SP>1 remains operated. To cut the connection the earth at M<SP>1</SP>0 is cancelled. Contact mt0 in series with relay CD0 is used as an availability test of the "vertical" input. The relays used may be reed relays or wire contact relays.
Patent GB-1208338-A (GB)
Title: Fluidic gate element
IPC: F15C1/18
Filed: 1968-08-26
Abstract: 1,208,338. Fluid gates. FOXBORO CO. 26 Aug., 1968 [8 Sept., 1967], No. 40705/68. Heading G4P. A fluid gate element has a chamber 20 with a control input channel 26, and aligned main jet input and output conduits 12, 22 whose individual lengths are shorter than, but whose combined lengths together with that of the chamber are longer than, the length necessary for laminar flow. The output pressure is detected by a receiver conduit 13. In the absence of control pressure, the main jet is turbulent and the pressure at 13 is low, representing ZERO. When the control pressure is above a certain value (but below a higher value) the flow is laminar and pressure at 13 is high, representing a ONE. The element thus behaves as an OR gate. In a second embodiment two such elements are arranged in series, Fig. 6 (not shown), to provide an AND gate, laminar flow being produced throughout only when both inputs are activated.  The element may be of laminar construction with flow channels formed by combining suitably etched plates. Fig. 5 (not shown) shows such a structure, having additional input orifices (52a, 52b) upstream of the chamber. A feedback channel (51b) connects the output to the control input to maintain the device in its laminar mode even when the control pressure disappears. This bi-stable element may be reset by applying a pressure signal to either of the additional inputs (52a, 52b) to interrupt the laminar flow.