baber/WOPTO huggingface dataset:
Patent GB-1045901-A (GB)
Title: Improvements in valves of the movable plug type
IPC: F16K5/20
Filed: 1964-01-29
Abstract: 1,045,901. Valves. THIOKOL CHEMICAL CORPORATION. Jan. 29, 1964 [Feb. 20, 1963], No. 3791/64. Heading F2V. A valve comprises a valve body having inlet and outlet passages 15, 16 and a movable plug 12 therebetween, the plug having an opening 13 movable into and out of alignment with the passages at least one of which is provided with a seal 17 having an inner and shaped to conform with the configuration of the plug and a circumferential groove 22 exposed to pressure fluid so that the bearing force of the inner end of the seal against the plug is increased. A reinforcement ring (not shown) may be provided at the inner end of the outer cylindrical surface of the seal 17 while the seal 16 in the outlet passage may have its inner cylindrical surface similarly reinforced, the circumferential groove 24 being provided in the outer surface. The circumferential grooves may be of dovetail section and contain a corrugated washer. The diameter D1 is greater than that at the bottom of groove 24 and less than that at the bottom of groove 22. The seals may be made of copper, zinc, aluminium, magnesium or from a tetrafluorocarbon.
Patent GB-255810-A (GB)
Title: Improved means for picking up separate sheets off a stack of papers
IPC: B65H3/56
Filed: 1926-02-10
Abstract: 255,810. Popov, V. July 24, 1925, [Convention date]. Sheet-separators.-Sheets are fed to packing or printing machines by means of a suction member 16 on a lever 6 which is oscillated by a cam 4 on a shaft 3 driven from the packing &c. machine. To prevent double feed the edges of the separated sheets are acted on by resilient combs 18 formed with teeth which are inclined at an angle a to the horizontal plane of the top sheet, and inclined also to the vertical edge of the pile of sheets. As the sucker 16 raises the top sheet, it passes in succession past the teeth of the comb, and any sheets adhering to the top sheet are separated therefrom by the successive action of the teeth. Pile supports for sheet feeds.-The pile 9 is carried by chains 41 which are moved intermittently by mechanism controlled by the movement of the lever 6. The lever 6 is returned to the pile by the action of a spring 13, and when the pile needs raising a depending slide 30 is raised by lever 6 and releases a spring-controlled finger 25 of a coupling member 24 and couples a drum 22 to a sprocket 8 driven from the camshaft 3 and normally rotating freely on the drum 22. The drum 22 is thus rotated one revolution and actuates a freely-mounted segment fitted with a pawl 35 which rotates a sprocket wheel 40 around which the chain 41 passes. The pile is thus raised a distance equal to the thickness of four or five sheets, and the slide 30 is caused to descend into the path of the finger 25 and the coupling 24 is thrown out of gear until the pileneeds to be raised again
Patent GB-691879-A (GB)
Title: Process for clarifying and purifying polluted impure waste liquids
IPC: C02F3/12
Filed: 1951-02-16
Abstract: 691,879. Treating sewage and waste effluents. DORR CO. Feb. 16, 1951 [Feb. 17, 1950], No. 3883/51. Class 111 In a process for clarifying and purifying polluted liquid by first subjecting the liquid to sedimentation in a clarifier, passing clarified liquid to a high rate biological filter bed and recycling part of the filter bed effluent to the clarifier, a further part of the filter bed effluent is led directly to an aerator and the aerated liquid is then supplied to a second clarifier from which clarified effluent and/or settled sludge is recycled to a point in the process ahead of the filter bed and from which activated settled sludge can be removed ana stabilized clarified effluent released. Polluted liquid is delivered through a feed conduit 1 to a primary clarifier 3 the supernatant liquid from which is passed to a sump 6 whence it is pumped to a device 10 for spraying it over a high-rate trickling filter bed 11 of discrete material bearing biological organisms such as aerobic bacteria. Some of the effluent from the floor 12 of the filter bed 11 is led by a conduit 13 to an aeration tank 15 to which air is supplied at 16, 17 and from which aerated liquid is passed by a conduit 18 to a second clarifier 19. Supernatant liquid passes thence to a well 42 having an outlet conduit 43. Some of this supernatant liquid (e.g. a quantity equal to half the quantity of untreated liquid flowing into the apparatus) may be recycled by a pump 45 through a valve 46 and conduit 24 to the sump 6 into which the effluent from the primary clarifier 3 is discharged. In addition, a portion (e.g. the same quantity as above) of the effluent from the filter bed 11 is passed by conduit 37 into the primary clarifier 3. The solids from the primary clarifier sump 34 are preferably passed to a closed digester (e.g. anaerobic), 36, having a sediment discharge 51, stirrer 52 and gas discharge 53. The overflow of liquid from the digester 36 is returned at 50 to the feed line 1. Preferably activated sludge is returned from the sump 26 of the second clarifier 19 to the aerating tank 15 along lines 27 and 29 by a pump 28 (as in the ordinary activated sludge process), the quality being e.g., half the total inflow to the apparatus. Such sludge may also be returned to a point ahead of the clarifier 3 along a line 30. The oxidation of impure liquid in the filter bed is carried out to a degree short of nitrification, whereas oxidation in the aerating tank 15 is carried forward into the nitrification stage, the liquid being stabilized An inert weighing material such as asbestos may be added at X to the liquid passing into the aerating tank 15 to promote more effective settling in the second clarifier 19. It is stated in the Specification to be known to pass sewage from a filter bed to an aerator with intermediate clarification.
Patent GB-117422-A (GB)
Title: Improvements in Buttons and in their Attachment.
Inventor: ALLEN EDWIN ALFRED
IPC: A44B1/34
Filed: 1918-03-06
Abstract: 117,422. Allen, E. A. March 6, 1918. Buttons. - A one-piece button is formed with a front part a, connected to a back part d of smaller diameter by a concave boss c, and with a tubular shank e, which is passed through the fabric x and turned down on to a washer f.
Patent GB-890890-A (GB)
Title: Improvements in or relating to data processing systems
Inventor: WRIGHT ESMOND PHILIP GOODWIN
Filed: 1958-02-06
Abstract: 890,890. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Feb. 2, 1959 [Feb. 6, 1958], No. 3991/58. Class 40 (4). [Also in Group XIX] Information is transferred from a first to a second storage device in which the second device operates at a slightly higher speed than the first, the transfer being effected through a buffer store, transfer from the buffer store to the second store being suspended for one cycle of a time scale associated with the second store whenever said time scale overtakes a time scale associated with the first store. Information is stored initially on a track 11dt on a magnetic tape 11t controlled by a 6-element counter 11C driven by clock pulses derived from a clock track on the tape. The information is finally stored on a track 12dt on a magnetic drum 12d controlled by a 6.element counter 12C driven by clock pulses derived from a clock track on the drum. Transfer is effected through a 5-element buffer store 11F-15F. When counter 12C overtakes 11C so that an attempt is made to transfer information from the buffer store to the drum before registration in the buffer store is complete, then trigger 16F inserts an " empty " mark in the relevant position on the drum. Trigger 17F also operates to prevent 18F transmitting the incomplete data to the writing amplifier, after which 19F operates to disable 17F, whereby transmission is halted for only one cycle of 12C. The information stored on the drum therefore contains an occasional empty position, but the " empty " mark enables reading circuits to ignore such a position. The prior state of the art is represented by reference to Specification 762,094. The invention is applicable to an automatic telephone exchange.
Patent GB-1499261-A (GB)
Title: Load indicating apparatus
IPC: B66C1/40
Filed: 1976-02-02
Abstract: 1499261 Dynamometers AMERICAN HOIST & DERRICK CO 2 Feb 1976 [1 May 1975] 04043/76 Heading G1W [Also in Division B8] A load indicator 10, shown in use interposed between a load line 11 and a hook 12 carrying a load 55, includes a housing 21 with circumfer-  entially aligned sight openings 39 through which a sleeve 49 is visible. The sleeve 49 has two distinctive sight bands, preferably red 38 and green, and is displaceable in relation to the magnitude of the load 55. When unloaded the indicator 10 shows wholly green at the openings 39 and when the load 55 is the rated maximum load the openings 39 show wholly red. Intermediate loads 55 are judged from the relative amounts of red and green visible through the openings 39.
Patent GB-1160291-A (GB)
Title: New Nitrogen-Containing Antibiotic Compounds
Inventor: OUSBY JOHN CLARK
IPC: A61K31/405
Filed: 1966-01-31
Abstract: 1,160,291. Antibiotics MM54 and MM73. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Jan., 1967 [31 Jan., 1966], No. 4182/66. Heading C2A. Antibiotics MM54 and MM73, also known as cytochalasins C and D, are produced by cultivating metarrhizium anisopliae IMI 98373 in an aqueous nutrient medium containing an assimilable source of carbon and nitrogen and inorganic salts. The antibiotics are extracted from the clarified fermentation broth at pH 7À0 with a solvent such as chloroform. The crude extract is dissolved in acetone, mixed with silica gel, the acetone removed, the acetone-free mixture added to a column of silica gel and eluted successively with benzene, benzene and chloroform 9: 1 and benzene and chloroform 4: 1 and the eluates are discarded. Further elution with 1:1 and 1: 3 benzene/chloroform and chloroform alone enables MM54 and MM73 to be recovered. Further purification is by recrystallization from acetone. The antibiotics have the following formulµ wherein the group in MM54 represents and in MM73 represents Consequently MM54 is 1-benzyl-3a,4,5,7a-tetrahydro - 5 - hydroxy - 6,7 - dimethyl - 3a,4 - (11 - acetoxy - 8 - hydroxy - 6,8 - dimethyl - 7 - oxo - cycloundeca - 3,9 - dieno)isoindoline - 3 - one. The antibiotics inhibit cytoplasmic cleavage and cell motility in tissue culture cells.
Patent GB-120508-A (GB)
Title: Improvements in Automatic Braking Apparatus for Lowering Appliances.
Inventor: MARTEN THOMAS HENRY
IPC: B66D5/00
Filed: 1918-03-11
Abstract: 120,508. Marten, T. H. March 11, 1918. Brakes and retarding-apparatus for winding and paying-out apparatus. - A lowering appliance is fitted with an automatic brake apparatus which retards the winding drum with a force proportionate to the load and so prevente racing. Arms 5, Fig. 1, extending from the standards 2' support a pivot 6 carrying a block 7 adapted to slide in a slot 9 in a lever 8 and forming a fulcrum for the lever. A U-shaped block 10 adjustable by means of a screwed spindle 11 straddles the lever and engages with the pivot 6. The cable 4 for the load W passes over a. sheave 16, a sheave 14 mounted on the upper end of the pivoted lever, and a sheave 13 on the pivot 6 to the winding drum 3. The lower end of the pivoted lever carries a brake shoe 12 acting on the drum. The arrangement is such that the pressure of the brake shoe varies proportionately to the load W. By means of the screw adjustment the pivoted lever can be moved relatively to its fulcrum to vary the braking effect. A manually-operated brake lever 24 acting on a brake shoe 23 also is provided. In a modification the load W, Fig. 2, is suspended from a cable 19 passing over a sheave 20 and thence directly to the winding-drum. the sheave 20 being supported by a cable 21 passing over a sheave 22 and connected to the pivoted lever 8. The fulcrum of the lever in this case is varied by altering the position of the sliding block 7 and securing it in the desired position by means of the bolts 17, spaced bolt holes being provided in the lever. In another modification, the pivoted lever 8 is mounted beneath the drum and may be provided with the screw adjustment or with the bolt adjustment. The brake shoe is in this case acted on by the pivoted lever and also by the hand-lever.
Patent GB-933484-A (GB)
Title: A process for the polymerisation of acrylonitrile
IPC: C08F20/44
Filed: 1961-02-03
Abstract: Acrylonitrile is polymerized by itself or with other ethylenically unsaturated copolymerizable compounds in an aqueous medium at pH values below 7 with the aid of per-compounds and sulphur compounds of low oxidation stage, in the presence of heavy metal ions and complex formers for the latter; the polymerization being carried out in the presence of formaldehyde sulphoxylate or formamidine sulphinic acid or an alkali metal salt thereof. Copolymerizable monomers specified are acrylic and methacrylic esters, styrene, vinyl and vinylidene chlorides, vinyl acetate and the CH-acidic compounds and NH-acidic compounds described in Specifications 867,006 and 933,483.  Mixtures of copolymerizable monomers may be used, e.g. methyl acrylate+methacrylaminobenzene benzene disulphonimide.  Complex formers specified are alkali metal and ammonium fluorides, pyrophosphates and hexametaphosphates, imido triglycolic acid and ethylene diamine p  tetraacetic acid.  Heavy metal ions specified are those of iron and copper.  Catalyst systems specified consist of alkali metal persulphates in admixture with alkali metal or ammonium pyrosulphites, bisulphites or thiosulphates or sulphur dioxide. Also present may be regulators, e.g. mercaptans and dithioglycols. During the course of the reaction further quantities of the various reactants may be introduced into the polymerization system. Specification 823,345 also is referred to.
Patent GB-603089-A (GB)
Title: Improvements in automatic pilots for aircraft
IPC: G01C19/34
Filed: 1945-02-21
Abstract: 603,089. Fluid-pressure servomotor-control systems. JACK & HEINTZ RESEARCH CORPORATION. Feb. 21, 1945, No. 4385. Convention date, June 29, 1943. [Class 135] In an automatic pilot for an aircraft, the control knob 7, Fig. 1, operates a friction brake controlling the rate of movement of the rudder synchronizing shaft 32 which is driven by an air turbine through a train of reduction gears 34-48.. The turbine is locked by the ball 17, Fig. 6, engaging between the turbine buckets. Turning of the knob 6 to the left or right operates a valve which allows air, via the passages 21, 23, or 20, 22, to move the piston 10 so that the ball rides into one of the pockets 31<SP>1</SP>, 31 respectively, and unlocks the turbine which is then driven in one direction or the other by air jets from the passages 19 or 18.
Patent GB-1114589-A (GB)
Title: Polypropylene composition
IPC: C08L23/12
Filed: 1967-01-30
Abstract: Compositions comprise 65 to 96 weight per cent of crystalline polypropylene having at least 50 weight per cent of an isotactic portion and a melt index of 0.1 to 10 at 230 DEG  C. under a 2.16 kg. load, 2 to 30 weight per cent of normally solid polyethylene and 2 to 30 weight per cent of an ethylene/propylene copolymer having an intrinsic viscosity of more than 1 in tetralin solution at 135 DEG C., an ethylene content of 2 to 20 weight per cent, a degree of crystallization of 5 to 40 weight per cent and being the polymerization solvent soluble portion obtained by stereo-regular polymerization of propylene in the presence of a Ziegler-Natta co-ordination catalyst wherein ethylene or a mixture of ehtylene and propylene is introduced in the latter stage of the polymerization to form a block copolymer. The compositions may contain stabilizers, anti-blocking agents, processing aids, antistatic agents, nucleating agents, pigments and fillers; and may be moulded to form pipes, containers and films.
Patent GB-1131394-A (GB)
Title: Roof support assemblies suitable for use in mines
Inventor: CANNON DENNIS HENRY
IPC: E21D23/04
Filed: 1966-02-01
Abstract: 1,131,394. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. April 28, 1967 [Feb. 1, 1966], No.4403/66. Heading F1P In a mine roof support assembly comprising at least one hydraulic prop 1 mounted with limited angular movement on a floor-engaging member and having an advancing jack 5, the assembly is provided with a valve 6 responsive to the angular position of the or one prop and operable to permit re-setting of the prop(s) against the roof only if that prop has been restored, by means (not shown), to a predetermined angular position relative to the floor-engaging member. The roof support is advanced by pressure fluid supplied to the jack 5 through a line 7. At the end of advance a valve 9 is opened by a lever 8 and the fluid flows through lines 10, 11 to cause re-setting of the prop(s) provided that the valve 6 is in an open position indicating that the prop has been restored to the predetermined angular position. In a modification the valve 6 is disposed in the line 7 so that it operates to prevent support advance until the prop has been restored to position. The means for restoring the angular position of the props may be metal springs, resilient rubber or a hydraulic jack.
Patent GB-288774-A (GB)
Title: Improvement in electric lampholder, and the like
IPC: H01R33/46
Filed: 1927-02-17
Abstract: 288,774. Nettl, R. Feb. 17, 1927. Holders.-The socket D of the holder into which a lamp bulb is inserted is provided at the upper end with segmental projections F which are adapted to fit on segmental cut-away portions B at the lower end of the insulating block A, the projections being secured by screws or bolts G.
Patent GB-511197-A (GB)
Title: Improvements in or relating to coiling apparatus, more particularly for extruded wire or rod
IPC: B21C47/00
Filed: 1938-02-11
Abstract: 511,197. Reeling extruded material. RUSSELL, G. A. V., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 11, 1938, No. 4422. [Class 87 (ii)] [Also in Group XXII] In reeling-apparatus for extruded rod, telescopic guide tubes 4, 6 convey the rod from an extruding machine 2 to reeling mechanisms 14. The tubes 6 are mounted on a table 8 movable away from the extruding machine to facilitate severing the rod. A casing 11 over the tube 4 provides a loop-forming space. The speed of the extrusion motor may be varied manually or automatically according to the loop formed. The reelers comprise vertical pins 19 and rollers 20 forming an annular space in which the rod is coiled. The rollers 20 freely rotate on rollers 23 and the pins are rotated by an electromotor 18. A hydraulic cylinder and piston 28, 26 operates an ejection plate 25. The reelers are adjusted to the speed of the extrusion machine and secondary adjustment may be made manually or automatically according to the change in speed or tension of the rod. Further adjustment may be effected by a roll 11a rotated by the rod, operating a relay in the reeler motor circuit.
Patent GB-216471-A (GB)
Title: Improvements in or relating to machines for planing and moulding wood
IPC: B27C1/12
Filed: 1923-02-15
Abstract: 216,471. Robinson & Son, Ltd., T., Robinson, C. J., and Tweedale, J. Feb. 15, 1923. Planing.-The pressure rollers 1 of a planing machine are provided with steadying arms 8 attached by links 9 to the carrier 6 of each pair of rollers, and the carriers are mounted on a vertically-adjustable bar 10 which can be slid aside to afford access to the cutters. A similar bar 14 may be provided for the auxiliary pressure rollers 17.
Patent GB-1381611-A (GB)
Title: Trip mechanism for turbine trip valve
IPC: F01B25/00
Filed: 1972-01-31
Abstract: 1381611 Trip mechanisms for valves CARRIER CORP 31 Jan 1972 [26 April 1971] 4475/72 Heading F2V A trip mechanism for closing a valve controlling the flow of fluid to a turbine, comprises a pivoted lever 15, Fig. 1, extending through the box-shaped head 12 of the valve stem 1 and held against closing movement under the action of a spring 19 by a restraining lever 25 which is arranged to be disengaged from the lever 15 by a cam 33 in response to a signal from the turbine. The cam 33 is mounted on a pivoted arm 34, Fig. 2, which is held in a horizontal position by a pivoted latch 70. The latch is released by the armature 57 of a solenoid 60 or by pneumatic or hydraulic means in response to the signal from the turbine. The latch can be re-set manually.
Patent GB-128875-A (GB)
Title: Improvements in or relating to Axle Boxes for Railway and like Vehicles.
Inventor: BOWLES GEORGE BARKER
IPC: B61F15/26
Filed: 1919-02-22
Abstract: 128,875. Bowles, G. B. Feb. 22, 1919. Covers.-The cover of a railway-vehicle axlebox is locked by means that can only be released when the vehicle is lifted relatively to the axlebox. The cover a is secured by a nut m on a bolt i which extends through holes in lugs j, k on the side of the axle-box, and abuts against a side member c of the guard plate. A hole c<2> in the plate c allows the bolt to be moved back when the vehicle is raised from the axle-box. Stops i<2>, i<3> limit the movement of the bolt i. In a modification, the bolt can be moved through the plate c into a hole in a lug n in line with that in the lug k. A dust-shield p is employed, as described in Specification 128,156.
Patent GB-184498-A (GB)
Title: Improvements in and relating to systems for signalling by means of high frequency currents
IPC: H04B1/04
Filed: 1921-02-08
Abstract: 184,498. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 8, 1921. Thermionic oscillation generators and modulating systems.-A transmitting system comprises three-electrode valves 2, 3, having coupled grid and plate circuits for producing oscillations and oppositely connected to a source 1 of lowfrequency alternating current, a second pair of valves 4, 5 for modulating the oscillations, also oppositely connected to the source 1, and an inductance 10 common to all the plate circuits. The plate circuits are fed through a transformer 8, the middle point of the secondary of which is connected to earth through the inductance 10. A shunt for the high-frequency currents is provided by condensers 17, 18 and a coil 19 which is coupled to a coil 20 in the grid circuits of tubes 2, 3 and to a coil 23 in the aerial, which is the only tuned circuit in the system. Choke coils 11, 14 are provided in the plate circuits. Signalling currents may be impressed upon the grids of the modulating valves 4, 5, alterations of the plate currents varying the potential drop across the inductance 10 in the plate circuits of the oscillating valves. The filaments are heated by means of a transformer 6, 7, the middle point of the secondary 7 being preferably grounded.
Patent GB-776390-A (GB)
Title: Improvements in or relating to dowel pins
IPC: F16B15/00
Filed: 1955-02-15
Abstract: 776,390. Nails; dowel pins. CHURCHMAN, H. Feb. 15, 1956 [Feb. 15, 1955], No. 4534/55. Class 89 (2). A dowel-pin or nail comprises a piece of wire or narrow strip with oppositely - directed pointed ends 18, 19, and is straight for approximately a half, 16, of its length and has the remainder 17 bent out of alignment therewith but in smooth formation for readily penetrating a panel &c. 15. The portion 17 may be arcuate or straight and inclined to the portion 16.