baber/WOPTO huggingface dataset:
Patent GB-1256699-A (GB)
IPC: E01D15/133
Filed: 1968-12-20
Abstract: 1,256,699. Temporary bridges. BUREAU D'ETUDES DANIEL. 20 Dec., 1968 [9 Jan., 1968], No. 61159/68. Heading E1G. A metal beam element 1 forming part of the carriageway of a temporary bridge or viaduct comprises a main central girder 9, Fig. 2, of inverted T form supporting a rectangular deck plate 6 reinforced by metal troughs 5 and by a plurality of transverse beams 4 spaced along its length, the beams 4 passing through the web of the girder 9. The depth of the girder web is reduced at each end, as shown in Fig. 5, the beam elements being releasably connected at their ends by vertical pegs 12, and being supported at or intermediate their ends by cross-members 11 of dismantleable gantries, Figs. 8-12 (not shown). Each gantry comprises two uprights (20) located at top and bottom by pegs. Each transverse beam 4 is supported by counterbraces 10 and carries lugs 8 for pin or bolt connection to adjacent beam elements or to edging elements 14 .. 18, Fig. 6. The endconnecting pegs 12, Fig. 5, may be provided on the gantry cross-piece 11 or, Fig. 7 (not shown), on a bolted-on connecting piece (19). The elements 1 may be straight or curved; may be 25m. long by 2.5cm. wide; and may have an epoxy resin top coating to form a road surface, the longitudinal and transverse joints 7, 13 being filled in situ. The bridge may have upper and lower decks, and may incorporate heating means.
Patent GB-1264121-A (GB)
IPC: F15B9/09
Filed: 1968-02-14
Abstract: 1,264,121. Fluid-pressure servomotor system. SERCK INDUSTRIES Ltd. Feb. 6, 1969 [Feb. 14, 1968], No. 7186/68. Heading G3P. A servomotor system comprises the combination of a power operated device 10 having a movable output member 11, a power control device 12 controlling the supply of power to the power operated device 10 and including a movable control member 15 displaceable within a limited range of movement, and feedback means operatively connecting the output member 11 and the control member 15 for feedback, the system including a stepper motor 17. The piston 11 forms the output member, its upper face subject to a constant pressure air supply and its lower face to an air supply at a pressure determined by the pilot valve 12 Fig.2. The valve 12 includes a pair of oppositely disposed ports 13, 14 connected respectively to the main supply pressure and to atmosphere. When the ball 15 is at its mid-position, the piston 11 is balanced. If, however, the ball 15 is lowered the full main pressure is applied to the lower face of the piston via a port (not shown), and if it is raised, the lower chamber will exhaust. The stepper motors 17 have their shafts connected together by a coupling 19 and are secured to the piston 11 via a housing 18 and spigot. The output shaft of the motor 17 is connected to a screw 23, on which a nut 24 is engaged. The nut 24 is coupled to the ball 15 by means of a sleeve 25 which abuts the stem 16 of the pilot valve 12. A spring 26 transmits upward movement of the nut until the ball 15 closes the port 13. Thereafter it compresses as a safety feature. An electrical trigger circuit, Fig. 3 (not shown) controls the supply of pulses to the stepper motors to effect a change in the equilibrium position of the piston. An alternative construction Figs. 4 and 5 (not shown) provides a regulator (102) whereby a constant pressure below the main supply pressure is applied to the upper end of the cylinder above the piston. The power control device may be a switch controlling the current to a motor for moving the output member of the servomechanism.
Patent GB-1264454-A (GB)
IPC: A61B6/00
Filed: 1970-05-08
Abstract: 1,264,454. Scintillation camera system. J. A. McINTYRE, and D. P. SAYLOR. 8 May, 1970 [26 May, 1969], No. 22235/70. Heading H4F. [Also in Divisions G2 and G4] The number of photo-multipliers required to analyse an image, e.g. an X-ray or γ-ray scintillation layer image, is reduced by coding, i.e. addressing, each elemental (unit) area with respect to photo-multiplier combinations. As described, Fig. 3, a scintillation image is divided into 81 (9 x 9) elemental areas 12 and from each area four light fibres transmit the illumination to four photo-multipliers out of a total of only twelve, two photo-multipliers (and associated light guides) identifying the horizontal position, e.g. 1 and A, and two the vertical position, e.g. 4 and D, of a scintillation in the matrix. It should be noted that the scintillations usually occur sequentially. Display of the resulting sequential coded signals is effected on an oscilloscope display by decoding the signals from the photo-multipliers with the aid of a discriminator circuit comprising two arrays of electronic switches connected at equal intervals in voltage divider networks which respectively determine (in response to the photo-multipliers outputs which actuate the switches) the horizontal and vertical co-ordinates of the bright-up spot on the display. In prior art referred to, only two light fibres are associated with each elemental area, 18 photo-multipliers being then required to address the above 81 elemental area matrix. The fibres may be packed closer together than that shown (Fig. 3a, not shown). The signals from the photomultipliers may be stored in a computer or on magnetic tape. If two or more scintillations occur simultaneously then more than four photo-multipliers in the above described arrangement will receive photons, but the discriminator circuit is so designed that the spot on the display is produced at the average co-ordinate position of these scintillations. Coarseness in the display is smoothed out by oscillating the displayed spot. The image amplifier system as described above may be used in many diagnostic applications, e.g. for examining teeth (a radio-active source being placed in the patient's mouth) or a thyroid gland (using iodine radio-activity). To correlate a position in the system with a position in the radio-active source, a collimator which may comprise a fibre optic bundle is used. Charged or neutral particle images may also be processed. Bubble chamber pictures, for example, may be obtained using this system by scanning the bubble chamber with a narrow light beam so that the light signals arrive sequentially at the light fibre matrix.
Patent GB-1265809-A (GB)
IPC: H02M7/10
Filed: 1968-06-24
Abstract: 1,265,809. Static rectifiers. A. J. HOBBS. 23 June, 1969 [24 June, 1968], No. 29978/68. Heading H2F.  A rectifier assembly, e.g. for high-voltage testing at 300 Kv., comprises a plurality of silicon diodes, in number significantly greater than (e.g. 3 times) that required for a given steady state operating voltage, connected in series and arranged in the configuration of an inductive winding embedded in epoxy resin within a thermosetting synthetic resin impregnated paper tube 5 (Fig. 3). A capacitive effect exists between adjacent diodes and the assembly acts as an inductance to high frequencies so increasing the overall impedance to surges. A framework comprising three parallel insulating rods 1, 2, 3 (Figs. 2 and 3) held in equilateral triangle formation by insulating members 4 provides a support for the rectifier diode devices e.g. C<SP>1</SP>, C<SP>2</SP>, C<SP>3</SP> which are mounted by their connecting wires on the rods. The safety factor of 3 ensures that should some of the diodes break down and short circuit under transient conditions there will be an ample number of diodes remaining operative.
Patent GB-1288697-A (GB)
IPC: C07D/
Filed: 1971-04-19
Abstract: 1288697 Separating melamine STAMICARBON NV 19 April 1971 [3 April 1970] 25796/71 Heading C2C Melamine is separated from a hot synthesis gas mixture comprising melamine vapour, ammonia and carbon dioxide by contacting the said gas mixture in a cooling zone with an aqueous solution containing at least one part by weight of ammonium carbonate per part by weight of melamine in the gas mixture, whereby the said melamine forms a suspension in the said aqueous solution and the said ammonium carbonate is decomposed into NH 3  and CO 2 .
Patent GB-1288903-A (GB)
IPC: A61K31/53
Filed: 1971-04-16
Abstract: 1288903 Pharmaceutical composition KYORIN SEIYAKU KK 16 April 1971 9703/71 Heading A5B [Also in Division C2] A pharmaceutical composition useful for the reduction of serum cholesterol and/or the suppression of arteriosclerosis comprises 2- amino-4, 6-bis(phenethylamino)-s-triazine in association with a suitable pharmaceutical vehicle. Simple solutions in water and common organic solvents are disclaimed.
Patent GB-1289023-A (GB)
IPC: G01L7/04
Filed: 1970-08-04
Abstract: 1289023 Measuring pressure electrically V D O TACHOMETER WERKE ADOLF SCHINDLING GmbH 4 Aug 1970 37550/70 Heading G1N A pressure gauge comprises a Bourdon tube 1 of which the movable end is connected by a spring 19 to a lever 15 carrying at one end a vane 16, movement of which varies the coupling between coils of a transistor oscillator circuit and thereby acts to vary the current supplied from a source 5 to a coil 13 carried on the other end of the lever whereby the coil is attracted towards a magnetic circuit 12 to balance the force due to springs 18 and 19, the balancing current being indicated on one or more indicators A as a measure of pressure. Displacement of the end of the Bourdon tube is also transmitted by a mechanical linkage 5, 6, 8, 10, 11 to a pointer 9 movable over a scale 2 to indicate pressure directly. The axis of the shaft 14 is parallel to the axis of rotation 9 of the pointer system.
Patent GB-1289478-A (GB)
IPC: C08G73/00
Filed: 1968-12-12
Abstract: 1289478 Poly - (2 - dicyanomethylene - indane 1:3 dione) PLESSEY CO Ltd 19 Dec 1969 [12 Dec 1968] 59083/68 Heading C3P [Also in Division C2] Poly - (2 - dicyanomethylene - indane 1:3- dione) is prepared by polymerizing the monomer in solution (e.g. in dimethylformamide) in the presence of a cationic polymerization catalyst such as sulphur dichloride or trinitrobenzene. The polymer is a conductor of electricity and is useful as a resistive element in electrical components. The Specification also discloses that conductive plastics can be obtained by incorporating a lithium complex of 2-dicyano-methylene-indane 1:3 dione into polymers, e.g. quaternized poly- (2-vinylpyridine).
Patent GB-1290785-A (GB)
IPC: C07C45/67
Filed: 1970-02-27
Abstract: 1290785 Isomerizing unsaturated ketones BADISCHE ANILIN- & SODA-FABRIK AG 27 Feb 1970 [1 March 1969] 9509/70 Heading C2C Alk-2-enones are prepared by isomerizing corresponding alk-1-enones at 0-250‹ C. in the presence of a finely divided metal of Group VIII or a palladous compound and in the presence of H 2 . In examples 2-methylhept-2-en- 6-one is obtained from 2-methylhept-1-en-6-one and 2,3-dimethylhept-2-en-6-one from 2,3-dimethylbept-1-en-6-one.
Patent GB-1290863-A (GB)
IPC: H01J37/305
Filed: 1969-08-05
Abstract: 1290863 Removing metal by ion beams UNITED KINGDOM ATOMIC ENERGY AUTHORITY 22 July 1970 [5 Aug 1969] 39260/69 Heading B3V [Also in Divisions C1 and H1] Apparatus for polishing, milling, or etching the surface of a metal object comprises means for directing a beam of ions at the object, masking means to interrupt the ion beam, and means to move the object relative to the masking means. In Fig. 1 the object is a glass lens 20 mounted on a support 22 which is movable axially and which is rotated when the apparatus is in use. A mask 24 is movably supported in a cover plate 9 and is so shaped that each part of the surface of the object 20 receives a required dose; various shapes of mask are illustrated (Figs. 2-6, not shown) for use with a schmidt lens, a concave lens, a convex lens, a compound lens, and for achieving a uniform distribution of erosion; in addition one or more correcting masks may be disposed at locations 24a or 24b. A grid 27 collects atoms sputtered from the object, the mask, and the cathode 14. The grid comprises a plurality of parallel slats 28 each of which is provided with an angled portion 31 to shield the portions 30 from ion bombardment, and is preferably oscillated in the direction A-B to prevent striations being formed on the object. The container is provided with a gas inlet 35 and exhaust 34 by means of which the filling of argon or air may be adjusted to a desired pressure between 10<SP>-3</SP> and 1 Torr.
Patent GB-1295503-A (GB)
IPC: H02J13/00
Filed: 1970-06-16
Abstract: 1295503 Electric selective signalling COMPAGNIE DES COMPTEURS 16 June 1970 [16 June 1969] 29136/70 Heading G4H [Also in Division H3] In a system of signalling over electrical power lines using pulses of say audio frequency, one or more command pulses are preceded by a start pulse, the interval between the start pulse and the or each command pulse conveying the information. The receiver consists of a number of semi-conductor gates which after the receipt of a start pulse open in succession for periods in which command pulses can be expected. The passage of a command pulse through a gate identifies the command. In the receiver shown in Fig. 2 a mechanical or electrical frequency-sensitive-device 11 closes contacts 12A, 12B in response to each audio frequency pulse on power lines 10, 10<SP>1</SP>. The start pulse causes discharge of a timing circuit 20, and if the pulse lasts for 1.5 secs. in a valid start pulse, the gate potential of uni-junction transistor T 1 , becomes low enough for the transistor to conduct and operate relay 21, whose contact 21 applies anode potential to T 1  and T 2 . Timing circuit 20 2  discharges 3 sees. after receipt of the start pulse to trigger T 2  and conduct transistor TR 2 . If a command pulse now arrives, closure of contacts 12B energizes relay winding 22A to close contacts 22C. 2.5 sees. after triggering of T 2 , T 3  triggers by timing circuit 20 3  to conduct transistor TR 3  and block TR 2 . If a command pulse now arrives the release winding 22B is energized to open contacts 22C. T 3  and T 4  trigger at successive 2.5 sec. intervals and operate on relay 23. The triggering of T 6  2À5 sees. after T 5  resets the receiver by releasing relay 21.
Patent GB-1297238-A (GB)
IPC: H01H9/36
Filed: 1970-02-07
Abstract: 1297238 Arc rupturing in switches R S KUZNETSOV A G USKACH and V G KOSTIKOV 7 Feb 1970 5984/70 Heading H1N An arc quenching chamber comprises joined pairs of metal plates 1 having a neck 8, links 2, 3, and parts 4, 5 in the form of an unclosed loop lying in parallel planes. Insulating barriers 6 are placed between the annular parts 4, 5. The plates, preferably of a ferromagnetic material, have a dovetail notch 10 in their lower part. In Fig. 5 (not shown) the start and finish of the bent portion 4 overlap whilst in Fig. 9 (not shown) the air gap 9 is offset relative to that of Fig. 1. In Fig. 10 (not shown), the plates of Figs. 1 and 9 are used alternately. In Fig. 7, the loops of the parts 4, 5 extend in opposite directions.
Patent GB-1301236-A (GB)
IPC: C21B7/12
Filed: 1971-07-15
Abstract: 1301236 Furnace taphole guns DANGO & DIENENTHAL KG 15 July 1971 [18 July 1970] 33234/71 Heading F4B [Also in Division F1] A furnace taphole gun 1, Fig. 1, carried by a boom 2 pivotally mounted on a fixed vertical axis 6 is swung to its withdrawn position shown in Fig. 2 by a fluid-actuated ram 11 pivoted at 12 to a fixed frame 13 and at 8 to a crank arm 7 of boom 2 and controlled by means 14 which reverses the direction of fluid flow to and from opposite ends of the ram as the latter passes through an end dead-centre position. Means 14 comprises a 3-position valve which at the start of gun withdrawal is in position III thereby connecting a supply line 15 to the rod end of the ram. As the latter approaches its bottom dead-centre position an electric switch (not shown) shifts valve 14 to position II in which both ends of the ram are connected to the return line 16 and after the ram has passed said dead-centre position a further electric switch moves valve 14 to position I to complete the gun withdrawal movement. The return forward movement is effected by the same sequence of valve arrangement. The ram is cushioned near the end of the withdrawal movement by partial closing of a throttle valve means of a cam follower 23 in abutment with a cammed surface of the boom 2. In a modification the boom and associated ram are moved over the dead-centre position by an auxiliary ram, or by a fluid or electrically operated rotary motor.
Patent GB-1302326-A (GB)
IPC: A47L11/33
Filed: 1971-05-21
Abstract: 1302326 Dustpans; carpet sweepers  R KIEVES 21 May 1971 16455/71 Heading A4F A cleaning brush and dust-collector device comprises a housing 12 having an elongated handle 14 attached to one end-wall, a rotary brush 38 extending through an opening in the bottom wall, a pivotally mounted dustpan 24 forming a side wall, a combined brush and sponge implement, 52, 54 removably mounted in a recess 56 in the other side wall, and a compartment 46 for receiving dust swept by the rotary brush 38, or collected by use of the dustpan 24. The illustrated embodiment also has a top wall 16 provided with a brush pile surface 18, the piles in each of four sections of which run parallel in a direction different from those in the other sections, and are inclined to the base surface of each section. With the dustpan 24 closed the device is run over a surface to be cleaned on wheels 44, Fig. 4 (not shown) at the ends of the brush 38, so that the latter is rotated to sweep dust into the compartment 46. Alternatively the dustpan 24 is opened and dust swept thereinto by the brush 52 or the sponge 54 of the implement 52, 54 after detaching it from the recess 56. The brush surface 18 may be used to transfer dust from less to more accessible areas for collection by the dustpan or sweeping brush.
Patent GB-1306517-A (GB)
Title: Manufacture of halogenated pyridine derivatives
IPC: C07D213/61
Filed: 1970-06-08
Abstract: 1306517 Fluoropyridines IMPERIAL CHEMICAL INDUSTRIES Ltd 25 May 1971 [8 June 1970] 27542/70 Heading C2C Chlorine is replaced by fluorine as a substituent in the 2-, 4- or 6-position of the pyridine ring by reaction of a chloropyridine or chlorofluoropyridine with an alkali metal fluoride in a non-hydroxylic solvent, optionally containing water, in the presence as initiator of an acidic compound, basic compound or alcohol. Products include the novel compounds 2-fluoro-4- chloro - pyridine, À4 - fluoro - 2 - chloro - pyridine, 2,4 - difluoro - pyridine, 2,4 - difluoro - 6- chloro - pyridine and 2,6 - difluoro - 4 - chloropyridine.
Patent GB-1319471-A (GB)
Title: Method and apparatus for treating gas
IPC: B01D53/04
Filed: 1970-08-28
Abstract: 1319471 Regenerating carbon beds HITACHI Ltd 28 Aug 1970 41581/70 Heading B1L Carbon adsorption beds 8a, b, c, are reactivated by feeding water to each bed in turn through 17a, b and c, while still feeding gas to be purified to the beds, including the bed being reactivated. The gas to be purified may be sulphur oxide containing flue gas.
Patent GB-1340874-A (GB)
Title: Oxidation of aromatic compounds
IPC: C07C37/60
Filed: 1971-05-24
Abstract: 1340874 Oxidation of aromatic compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 24 May 1971 [8 June 1970] 27540/70 Heading C2C Aromatic compounds containing a benzene ring with at least one unsubst tuted carbon atom are oxidized in the liquid phase to aromatic compounds containing a hydroxy substituted benzene ring or the corresponding esters by treating the aromatic compound with a solution of a tetravalent lead compound, e.g. lead tetraacetate in the presence of a strong acid, i.e. one having a pKa in 0À1 to 0À01 N aqueous solution at ambient temperature of less than 1À5 or thereabouts, e.g. trifluoroacetic acid.
Patent GB-1345953-A (GB)
Title: Universal joint
IPC: F16D3/205
Filed: 1971-10-16
Abstract: 1345953 Universal joints F JOHNSTON 5 Nov 1971 [16 Oct 1971] 48210/71 Heading F2U A universal joint comprises a spherical end on one shaft 1 having at least two pins 3 extending radially therefrom to engage axial slots in a cup-shaped member 2 on another shaft to transmit rotation thereto, and also engage slots formed between two shells 4 each with an almost hemi-spherical recess engaging the spherical end. The shells 4 may have integral axial keys 5 engaging axial grooves in the member 2.
Patent GB-1354472-A (GB)
Title: Constant velocity ratio universal joints
IPC: F16D3/226
Filed: 1970-02-28
Abstract: 1354472 Universal joints GKN TRANSMISSIONS Ltd 19 April 1971 [28 Feb 1970] 9763/70 Heading F2U A universal joint as in Specification 1,292,854 except that the ball 23 is fixed to the outer member 10. The joint may have a flexible gaiter seal between members 10 and 18. The ball 23 and its stem are removable to give a plunging joint. Reference has been directed by the Comptroller to Specification 1,097,149.
Patent GB-1354512-A (GB)
Title: Presses for both welding and cutting heat-weldable materials
IPC: B26F3/06
Filed: 1970-05-20
Abstract: 1354512 Welding and cutting presses for heat-weldable material COX & WRIGHT Ltd 20 May 1971 [20 May 1970] 24481/70 Heading B5K A press in which weld seams are made in workpieces comprising heat-weldable material and the workpieces are trimmed to final shape by knife blades is characterized in that two work trays 14, 15 are provided which travel alternately into the region between the press platens 11, 12 one being retracted between the press platens while the other is extended at the front of the press (i.e. where the operator stands or sits) for loading so that the operator can be laying up a fresh workpiece on a die on one work tray while work on the other tray is undergoing the cut/weld cycle, the two work trays 14, 15 running horizontally on guides 18, 19 one above the other, and being interconnected by chains which run around sprockets at the rear of the press, and there are provided dual mechanisms and controls 49, 50 whereby the depth of penetration of a heated welding tool carried by the platen 12 into the material of the workpiece and also the depth of penetration of a knife blade carried by the platen 12 through the workpiece material may be preset. The work trays 14, 15 each comprise a rectangular open-bottomed frame whereby the lower, vertically movable platen 12 can rise through the tray into engagement with a die assembly carrying the workpiece, e.g. shoe uppers. The controls 49, 50 each comprise a knob turnable relative to a calibrated disc 59, 60 and connected via articulated links 53, 54 to pulleys 52. The pulleys 52 are in turn connected via belts 58 to pulleys 55, 56 mounted on the top of vertical, rotatable screwed rods 39, 40. The rods 39, 40 are mounted on a frame 36 which is in turn mounted on the outer fixed telescopic member 35 of the piston/cylinder arrangement 13 which raises and lowers the platen 12. The inner telescopic member 34 carries two rods 45, 46 which are themselves telescopic. Each rod 39, 40 carries a non-rotatable nut 41, 42, each of which carries a limit switch 43, 44, the position of which is set by rotation of the knobs 49, 50. The limit switches 43, 44 are engaged by a foot 47, 48 projecting from the outer telescopic member of the rods 45, 46 respectively. Engagement of one of the limit switches sets the depth of penetration for the welding operation, and the engagement of the other limit switch sets the depth of penetration for the cutting operation. The telescopic nature of the rods 45, 46 allows the override for the engagement of the second limit switch. Each rod 45, 46 comprises a spring-loaded telescopic assembly to prevent damage to the press in the event of failure of a limit switch. In the welding operation, the workpiece is preferably also embossed to resemble a line of stitches.