baber/WOPTO huggingface dataset:
Patent GB-1278189-A (GB)
Title: Anthracene recovery
IPC: C07C67/00
Filed: 1970-12-23
Abstract: 1278189 Anthracene RUTGERSWERKE AG 23 Dec 1970 [7 Jan 1970] 61049/70 Heading C5E Anthracene is recovered from aromatic oils or pyrolysis residues (e.g. containing 0À1-1% anthracene) by (a) concentrating the oil or residue by distillation until the anthracene content is 1-4% by wt., (b) further concentrating the concentrate by distillation and/or crystallization to give an anthracene content of 10- 25%; and (c) recrystallizing anthracene from the concentrated product using an alkyl-aryl ketone as recrystallization solvent. The preferred solvent is acetophenone which is used in a wt. ratio of acetophenone : concentrated product of 1 : 1-1 : 6. Preferably the starting materials are first treated by the method of Specification 1,261,977.
Patent GB-625678-A (GB)
Abstract: 625,678. Calculating-apparatus. REMING- TON RAND, Inc. July 2, 1946, No. 19791. Convention date, Aug. 10, 1944. [Class 106 (i)] The numeral wheels of a totalizer are each operatively connected with a sensing element and a control finger which, when the corresponding wheel changes from one predetermined position to another, moves and closes an electric circuit to operate a fugitive-1 mechanism. The invention is described with reference to a Remington accounting machine, and each numeral wheel has attached to it a pinion against the teeth of which is pressed one end of a pivoted lever, one tooth being cut short to cause the lever to pivot in a certain position of the wheel and move a finger, the fingers operating electrically a fugitive-1 mechanism when a negative total is being printed. Each pivoted lever or sensing element 18 has a part 20 pivotally connected by a link 21 to one arm 22 of a lever pivoted at 24 of which the other arm or finger 23 projects out of the casing. When a numeral wheel 14 reads other than zero the finger 23 projects vertically, but when the wheel reads zero the lower arm of the lever 18 rests on the short tooth 16 and the finger 23 is rotated clockwise by the action of a spring 35. A contact plate 25 is arranged above the totalizer in such a position that as the totalizer moves under it any upstanding fingers (i.e. those whose numeral wheels do not read zero) will contact it and each finger will pass off the plate just as the figure corresponding to it is to be printed. While any one or more of the fingers contact the plate an electric relay is energized, and is therefore de-energized when the finger corresponding to the last significant digit passes off the end of the plate. This deenergization operates the fugitive-1 mechanism. Clear signal. A common bail element 32, pivoted at 33, has slots through which pass the links 21 on each of which is a stud 34. When all the numeral wheels read zero, all the studs 34 are pulled to the left and the bail element 32 is free to pivot. This allows a lever 38, which bears against a stud 37 on one end of the bail, to be pivoted by a spring 48, thus rotating a quadrant 44 and a sensing disc 45. A finger 47 on the disc then engages a sensing finger (not shown) to print a clear symbol. Freeing the numeral wheels. Actuation of a master dog 50 operates a lever 51, pivoted at 39, so that a known stop bail 54 is rotated anticlockwise. This has a projection 55 which is thus pressed down on to lips 57 on the levers 18 and relieves the pressure on the numeral wheels. Specification 534,022 is referred to.
Patent GB-1300399-A (GB)
Title: New aerosol composition
IPC: C09K3/30
Filed: 1969-12-30
Abstract: 1300399 Aerosol anti-perspirants AEROSOL MAATSCHAPPIJ HOLLAND NV 30 Dec 1969 [13 Jan 1969] 63327/69 Heading C4X [Also in Division A5] An aerosol composition for preventing perspiration consists of, as the astringent compound, aluminium hydroxychloride dissolved in water as the solvent for the latter and, as the propellant, dimethyl ether, with optionally one or more additional astringent compounds, a perfume, a lower aliphatic alcohol having one to six carbon atoms, a germicide, and when trichlorocarbanilide is included as a germicide, a poly-alcohol. Specified optional ingredients include ethanol, hexachlorophene, benzalkonium chloride, trihalogen-salicylanilide, 2,2<SP>1</SP>-methylene-bis-(3,4,6-trichlorophenol), diethylene glyeol, dipropylene glycol, propyleneglycol, glycerol, sorbitol, and scopolamine hydrobromide.
Patent GB-654993-A (GB)
Abstract: 654,993. Automatic temperature control systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd., and BELL, D. A. May 25, 1948, No. 14157. [Class 38 (iv)] In order to control the heating or cooling of a substance in a chamber 10 (e.g. in the growth of crystals from a solution), the chamber 10 is enclosed in a second chamber 11, separated therefrom by material of low thermal conductivity and a constant temperature difference is maintained between them. Temperature variable resistances 13, 14 forming part of a bridge arrangement 15 are in thermal contact with the inner and outer chambers 10, 11 respectively and the ratio of fixed resistors 16, 17 is adjusted according to the temperature difference required. When a hot substance is placed in the inner container the outer container is maintained at the predetermined difference temperature below that of the inner chamber by the action of a heater 22 energized through an amplifier 21 upon unbalance of the bridge when the temperature difference between the chambers exceeds the predetermined amount. The apparatus is arranged so that the rate at which heat is lost to the surroundings from the outer chamber is greater than that at which heat is lost to the outer chamber from the inner chamber so that the temperature difference always tends to increase. When used for heating a cold substance the outer chamber is initially heated to a predetermined temperature above that of the inner chamber. Heat then flows from the outer to the inner chamber reducing the temperature difference unbalancing the bridge circuit and causing energization of heater 22 to effect a restoration of the temperature difference.
Patent GB-675217-A (GB)
Abstract: 675,217. Forging-hammers. SAXER, A. Sept. 7, 1949 [Sept. 9, 1948], No. 23221/49. Addition to 650,550. Class 83 (iv). The shaping tool of the parent Specification, wherein a number of hammers 2 evenly distributed around a work-piece 1 are actuated by an eccentric on a shaft 3, itself mounted in a member such as an eccentric bore in a bush 4 whereby the tool can be adjusted to give the required size to the work-piece, has the adjusting mechanism of the hammers 2 arranged in such a manner that the static friction arising from the reaction between the moving parts 3, 4 driving the hammers 2 and the machine frame leaves the control system unloaded. The hammers 2, driven by a crank on a shaft 3 mounted in an eccentric bore of the bush 4 rotatably adjusted by gear teeth 5 arranged around its periphery, are adjusted towards and away from the workpiece 1 by rotating the bush 4 by a gear 6, rack 8, and hydraulic cylinder 11. The movement of the rack 8 is limited by adjustable stops 12 mounted on a roller 13. In an alternative arrangement, Fig. 4, the crank 3 is mounted in a slide-block 19 which is moved towards and away from the work-piece 1 by a tapered slide-block 20. In a further arrangement, Fig. 5, the crank 3 is mounted in a slide 21. In order to obtain self-locking of the slide 21 the angle α must lie within the angle of static friction between the slide 21 and the slideway.
Patent GB-2001745-A (GB)
Title: Gas-fuelled cigarette lighter
IPC: F23Q2/173
Filed: 1978-07-28
Abstract: In a gas lighter the adjustment of the height of flame is obtained from a rotary part 1 the rotation of which is limited by two stops 6 and 7 cooperating with at least one fixed abutment 11. The angular spacing of the two stops is adjustable by removing the parts 2, 3 on which they are formed and re- mounting then on the rotary part 1 in new angular positions. <IMAGE>
Patent GB-2003304-A (GB)
Title: Computer system
IPC: G06F15/16
Filed: 1978-08-23
Abstract: A computer system comprises at least three individual computers (1, 2, 3) connected via at least one control line (4) to a control computer (not shown), the individual computers being interconnected by data lines (51-59) via input (11-13, 21-23, 31-3) and output (14-16, 24-26, 34-36) stores for data transfer therebetween, and means for modifying the connections between the computers. The interconnections are such that more than one data transfer may be effected at the same time. The selection of computers to be connected may be by means of electrical switching means, eg a crossbar distributor, or by a manual plug board. <IMAGE>
Patent GB-2004993-A (GB)
Title: Process and apparatus for supplying pulverulent fuel for the pressure gasification
IPC: C10J3/54
Filed: 1978-09-18
Abstract: Pulverulent fuel e.g. dried lignite is supplied to a suspension gasifier under pressure from a lock hopper (5) into a dosage container (7), the powder heap is partially fluidized by a carrier gas and the carrier gas, charged with pulverulent fuel, is passed by a feed line (9), towards the burner(s) (30) of the gasification reactor (31), the ratio of internal cross-sectional area of the feed line to the free cross-sectional area of the partially fluidised layer is arranged to be from 1:50 to 1:300 and the power stream is regulated by varying the carrier gas stream, injected into the lower part of the dosage container (7) in accordance with the powder flow or a parameter measured in the gasifier. <IMAGE>
Patent GB-2009038-A (GB)
Title: Composite Fabric
IPC: D06M17/10
Filed: 1978-11-22
Abstract: A composite fabric comprises a layer of pile-forming material such as a textile bonded to a substrate material by an interlayer of plastics material e.g. polyvinyl chloride a polyurethane which is substantially air-free. The interlayer has a density in the range 0.9 to 1.5 gm/cc and the substrate is a slab of deaerated plastics material having a weight up to 6.5 kg/sq. meter and incorporating a layer of fibrous material such as glass fibre scrim tissue or a polyester textile. The pile forming material may be as light as 68 gm/sq. meter and as heavy as 4 kgm/sq. meter.
Patent GB-2013808-A (GB)
Title: Anti-skid braking systems
IPC: B60T8/173
Filed: 1979-02-02
Abstract: Anti-skid control valves 12b, 12c, 12d arranged directly in the brake circuits for the purpose of pressure modulation are actuated hydraulically by solenoid pilot control valves 11b, 11c, 11d. The solenoid pilot control valves are preferably controlled by electronic control circuits of appropriate construction which feed control signals to the solenoid pilot control valves cyclically or in a form such that the operation of the valves follows a pattern or cycle. Preferably, the main valves actuated by the solenoid pilot control valves are constructed such that the pressure medium to be controlling is subjected to a throttling action, so reducing pressure fluctuations. <IMAGE>
Patent GB-2014065-A (GB)
Title: Production of fine metal powders
IPC: B02C19/18
Filed: 1979-02-12
Abstract: Metal particles which are ductile at ambient temperature are comminuted by being passed through a first impact mill, e.g. a vibratory ball mill (2), at ambient temperature to increase their length to thickness ratio, embrittled in a precooler (4), and then comminuted in a second impact mill, e.g. a rotary impact mill (6). <IMAGE>
Patent GB-2016641-A (GB)
Title: Improvements in and relating to multi-wall pipelines
IPC: F16L9/14
Filed: 1979-02-20
Abstract: The present invention relates to multi-wall pipelines particularly for transporting fluids over long distances under water. Such a pipeline comprises a plurality of pipe sections each of which comprises a plurality of concentric metal tubes 1, 2 which are radially spaced apart and the spaces filled with a filling material 3. At each end of each section the or each annular space between the tubes is closed by a metal ring 4 welded to the tubes, the ring 4 having a length such that the temperature attained at the level of the inner end of the ring during butt welding of the section to a like section is not such as will damage the filling material 3. <IMAGE>
Patent GB-2053428-A (GB)
Title: Hot water boilers
IPC: F24H1/26
Filed: 1979-06-07
Abstract: A water heater has a duct 1 containing a plurality of bodies 7 of refractory material, a gas heater 11 positioned at the base of the duct so that, in use, flames and hot products of combustion pass up the duct, and a container 21 surrounding at least part of the duct contains water to be heated. The container comprises upper and lower water heating compartments 23A, 23B. <IMAGE>
Patent GB-2029113-A (GB)
Title: Television
IPC: H04N5/30
Filed: 1979-07-06
Abstract: A device for improving the image on a television screen comprises a plurality of plastics tubes (8 to 12 and 13 and 19), a series electrical connection being formed in between at least some of the tubes. The series of tubes is provided with a terminal (7) for connection to an aerial socket, of a television set, and with additional terminals (4,5) for connection to an external aerial. Each of the tubes contains and is surrounded by chemical compositions adapted to modify incoming electromagnetic signals prior to their transmission to the aerial socket. <IMAGE>
Patent GB-2030336-A (GB)
Title: Improvements Relating to Emergency Alarm Systems
IPC: G08B25/04
Filed: 1979-09-06
Abstract: An emergency alarm system, such as a fire alarm system, comprises a string of alarm initiation units 1 connected in parallel by a common one pair cable 2 to a monitor 3 connected at one end of the cable. Upon actuation of any one of the units 1, which may be effected automatically or manually, the unit is arranged to transmit to the monitor 3 via the cable 2 an identification signal which is unique to that particular unit, and the monitor 3 is responsive to the identification signal to initiate the alarm and to indicate, for example on a display panel 4, which particular unit 1 has been actuated. The identification signal of each unit 1 is preferably a predetermined number of pulses which are applied to the cable 2 by modulating a DC supply which is carried by the cable for powering the units 1. The system also includes a surveillance circuit for checking the integrity of the cable 2, preferably comprising a device 33 at the extreme far end of the cable 2 remote from the monitor 3 for clamping the voltage across the conductors of the cable at a reference value, and means in the monitor for detecting whether the cable voltage falls to zero (short circuit) or rises to a predetermined value above the reference value (open circuit). <IMAGE>
Patent GB-2034919-A (GB)
Title: A control device
IPC: G05D23/20
Filed: 1979-09-11
Abstract: Two-point controllers (2, 3) are provided for a two compartment heating installation, one having a narrow switching hysteresis (3) and the other having a wide switching hysteresis (2). The controllers receive, in parallel, a control deviation +/- Kw and are linked to two setting members (Y, Y2) via a two-pole changeover switch (4a, 4b). At start-up both controllers operate and in a subsequent control stage the controller 3 cycles. When the disconnecting points of both controllers (2, 3) have been exceeded by the control deviation the switch (4a, 4b) is changed-over and the connections to the setting members interchanged when the control deviation falls below the switching-on points of both controllers (2, 3) the switch is restored. <IMAGE>
Patent GB-2062410-A (GB)
Title: Call barring arrangement
IPC: H04M1/665
Filed: 1979-10-25
Abstract: A selective call barring arrangement, for barring incoming calls in a telecommunication network, has at the premises of a subscriber with the facility a special terminal. When the subscriber wishes to bar incoming calls except from authorised callers, he sets a switch (SFS) from its normal N condition to its B condition in which call barring is in force. When an incoming call arrives, the caller receives a signal advising him to send his special signal. At the terminal this is detected by a decoder and the call indicated to the subscriber. The special signal can be sent from a hand-held coder (1, 2, 3), acoustically coupled for use to the caller's subset, or sent by dialling therefrom. The system is described as used with a conventional telephone answering machine.
Patent GB-2035972-A (GB)
Title: Closure cap and container
IPC: B65D41/04
Filed: 1979-10-30
Abstract: Closure caps screwed onto containers are known to back-off or unscrew when subjected to vibration and general movement during transit and handling. To alleviate this problem, the screw threads 14,22 of a cap 2 and container 4, respectively, each have sufficient alternate ridges 16,27 and indentations 18,28 over at least part of their length so that when the cap 2 and container 4 are in a closed position at least one ridge on one screw thread can engage an indentation on the other screw thread. <IMAGE>
Patent GB-2037272-A (GB)
Title: Improved method of and apparatus for shaping glass sheets by drop forming
IPC: C03B27/044
Filed: 1979-11-12
Abstract: Heat-softened glass sheets are held by a flat vacuum platen and dropped onto a shaping mold to impart the desired curvature to the glass sheet.
Patent GB-2038824-A (GB)
Title: Preparation of 3-methyl-2- (carboxy-???-hydroxyethylamido)- quinoxaline-1,4-dioxides
IPC: C03B37/075
Filed: 1979-12-13
Abstract: A process for preparing 3- methyl-2-(carboxy-???- hydroxyethylamido)-quinoxaline-1,4- dioxide by reacting benzofuroxane with the in situ prepared product of the reaction of an alkyl acetoacetic ester with monoethanolamine.
Patent GB-2067834-A (GB)
Title: Semiconductor Device
Inventor: KAOURU TAKASUKA
IPC: H01L31/062
Filed: 1980-01-17
Abstract: The semiconductor device has an electrically conductive substrate 21 supporting layers of amorphous silicon hydride 201, oxide semiconductor 24 and metal 25. Placing the oxide semiconductor layer 24 between the amorphous silicon hydride layer 201 and the metallic layer 25 provides an excellent collection efficiency for light, particularly in the range of short wavelengths, and a high energy conversion efficiency as compared with the conventional Schottky barrier semiconductor device and the semiconductor device having a MIS structure and provides the semiconductor device with an excellent storage stability for a long period of time. The layer 201 may be formed of a layer 22 of doped amorphous silicon hydride adjacent the substrate 21 and a layer 23 of non-doped amorphous silicon hydride adjacent the oxide semiconductor layer 24. A photovoltaic device is formed by placing electrodes 26 in contact with the metallic layer 25, and covering them with an anti-reflection layer 27. <IMAGE>
Patent GB-2041756-A (GB)
Title: An aspirator bottle for use in draining wounds
IPC: A61M1/00
Filed: 1980-01-21
Abstract: An aspirator bottle provided with a pressure indicator, for example a bellows (5) has a scale (8, 10) associated with the indicator so that a precise reading of the pressure may be obtained. In a modification, a second bellows, with its respective scale, is provided, the one bellows serving to provide a readout for a full vacuum range and the other providing a readout for a lower vacuum range. <IMAGE>
Patent GB-2068117-A (GB)
Title: Improvements in bi-metallic strip
IPC: G01K5/66
Filed: 1980-01-25
Abstract: A bi-metallic strip comprises two layers of metal bonded to one another, one of the layers consisting of substantially 36% by weight of nickel with the remainder being iron except for incidental impurities and the other layer being of aluminium or aluminium containing alloy additions.
Patent GB-2049386-A (GB)
Title: Mower mounted on vehicle
IPC: A01D34/64
Filed: 1980-04-09
Abstract: A mower comprising a mower frame 11 attached to the bottom of a vehicle body 1, cutting blades 12 rotatably supported by vertical shafts on the mower frame, a drive assembly on the frame for rotating the blades, arms 40, 46 supported on the frame and pivotally movable upward or downward, gauge members 13 supported by the free ends of the pivotal arms, an operating member 50 operatively connected to the pivotal arms for pivotally moving the arms, and locking means 56 for disengageably holding the operating member. The mower frame is upwardly or downwardly movable by the movement of the pivotal arms with the gauge members in engagement with the ground to position the cutting blades at the desired level. The blades are retainable at this level by the locking means. <IMAGE>
Patent GB-2076737-A (GB)
Title: Jig saw
IPC: B23D49/08
Filed: 1980-05-27
Abstract: Mounting means for a powered sawing tool, preferably a jig sawing tool, supports the tool 10 in an inverted position so that the sawing element 13 extends upwards. The mounting means includes a plate 16 having an opening 14 through which the sawing element 11 extends and the body of the tool is secured below the plate. The plate provides on its upper side a support surface for the work piece to be sawed. The plate 16 is carried on a support 18 which acts as a support surface and may form the surface of a work table. <IMAGE>
Patent GB-2053015-A (GB)
Title: A separable blade agitator
IPC: F16B4/00
Filed: 1980-06-19
Abstract: A drive shaft (12) and a first impeller (22) have face-to-face mounting surfaces (28, 18) spaced by shims (38). A second impeller (30) has a hub (34) with a bore (36) the internal profile of which is substantially the same as that defined by the total cross-section of the shaft (12) and the mounting member (24) bearing the mounting surface (28), with a transverse dimension of the bore (36) being less than that of the shaft end (14) and the mounting member (24) together. At least one of the impellers (22, 30) has a radial agitator blade (26, 32). Preferably, the shaft (12) and impellers (22, 30) are coated with a corrosion-resistant material, such as glass. To assemble the agitator, a U-shaped tool is used to bow the mounting part (24) into the dotted line configuration, Fig. 3, whence the hub (34) is slid over the shaft end and mounting portions (14, 24); after the tool is released the parts remain clamped together. <IMAGE>
Patent GB-2059926-A (GB)
Title: Apparatus for laying a web of film into Z-folds
IPC: B65H45/20
Filed: 1980-09-24
Abstract: Apparatus for producing Z-folds at intervals in a fed web 3 during standstill periods thereof comprises spaced parallel prongs 7, 8 between which the web passes. The prongs are turned to form a Z-fold in the web slung thereabout. The fold is clamped between pivotable conveyor belt arms 21, 22 after the prongs have been axially retracted. <IMAGE>
Patent GB-2085604-A (GB)
Title: Multiple Photograph Cameras
IPC: G03B19/02
Filed: 1980-10-13
Abstract: In a camera capable of taking four photographs simultaneously or successively, and having a removable rotary blanking disc having four apertures and four removable blanking plugs (for successive exposures), accidental double exposure is prevented by mechanism that locks the shutter release arm, after shutter release, until the blanking disc has been rotated through at least one intermediate position. The exposures may be on a sheet fed from a film pack magazine. On actuation of a shutter release arm A, a latch pawl L is rotated clockwise (from the position shown), allowing a locking crank C to rotate clockwise into a position (Fig. 4) preventing further actuation of arm A until a reset lever R is allowed to rotate clockwise, at an intermediate position of a blanking disc D (Fig. 2), so as to rotate crank C anticlockwise out of engagement with pawl L and arm A. <IMAGE>