baber/WOPTO huggingface dataset:
Patent GB-966043-A (GB)
Title: Improved method and apparatus for moulding plastic materials
IPC: B29C70/32
Filed: 1961-05-04
Abstract: 966,043. Moulding plastics. R. A. GRAYDON, and GRAYDONS INDUSTRIAL & MARINE PLASTICS Ltd. April 30, 1962 [May 4, 1961], No. 16152/61. Heading B5A. Articles of synthetic resin or other plastic materials are moulded by feeding the material in fluid form to a lower region of a mould which is being propelled in a circular path in a horizontal plane, the resultant centrifugal force causing the plastic material to occupy and conform to the internal mould shape, and simultaneously displace from an upper part of the mould the air contained initially therein. The apparatus consists of a rotatable vertical drum 18 with a plurality of holding means 26 spaced around the wall for detachably locating a number of moulds 28. The feed of the flowable plastic material is effected by centrifugal force by positioning reservoirs 30 of the material radially adjustably between the wall and the axis of the drum, and connecting them to the moulds by pipes 38. If desired, suction may be applied to the air escape pipe 40. In the moulding of fibre reinforced resin materials, the internal mould surfaces are coated with a plastic mix or clear synthetic resin prior to the introduction into the mould of glass fibre reinforcement which is generally in the form of a mat. The resin material is then fed into the mould in the manner described.
Patent GB-940654-A (GB)
Title: Improvements in control installations for regeneratively heated hot blast stoves
IPC: C21B9/00
Filed: 1959-11-06
Abstract: In a blast furnace installation having at least two hot air stoves, the temperature control for the furnace is linked to the temperature control <FORM:0940654/C3/1> for a stove being heated up so that the temperature of the stove is matched to the heat requirement of the furnace.  As applied to a fully automatic three-store installation according to Specification 940,653 [Division F4], the addition of cold blast to the furnace bustle pipe H W R is regulated by a damper 31 and a device 4 controlled by a temperature sensitive element T in the bustle pipe.  The total amount of blast is controlled by a damper 30 and regulator 2.  Voltages from the regulators 2, 4 are combined with a constant voltage, set in accordance with the calorific value of the heating gas, the thermal efficiency of the stoves and the operating conditions of the blast furnace, in a heat requirement regulator 5. Through a central control 12, forming part of the automatic change over apparatus, the regulator 5 is connected to the gas supply valve 22 and the air supply valve 25 through regulators 14, 17 and servomotors 20, 23.  A thermo-couple 26 in the dome of the stove is linked to the air regulator 17 to increase the air supply to control the stove temperature.  When one stove is taken out of a three stove system, the heat requirement regulator is disconnected so that the remaining stoves can operate at full capacity.
Patent GB-974899-A (GB)
Title: Esters of quaternary ammonium compounds and processes for the production thereof
IPC: C07D/
Filed: 1962-04-27
Abstract: The invention comprises compounds of the general formula <FORM:0974899/C1/1> (wherein R1 represents a hydrogen atom, a C1- 3 alkyl group or a benzyl group, R2 represents a phenyl or cyclohexyl group, R3 represents a hydrogen atom or a hydroxyl group, R4 represents a C1- 4 alkyl group and An represents an anion) and their preparation by (a) reacting a compound of the formula <FORM:0974899/C1/2> with a compound of the formula R4X (wherein X represents a halogen atom or an alkyl sulphate radical), (b) reacting a compound of the formula <FORM:0974899/C1/3> with a compound of the formula R1CH2X, (c) reacting a compound of the formula <FORM:0974899/C1/4> (wherein Ha1 represents a halogen atom) with an acid of the formula <FORM:0974899/C1/5> in the presence of a hydrogen halide binding agent, or with a salt of the acid, or (d) reacting a compound of the formula <FORM:0974899/C1/6> with an anhydride or halide of an acid (I), optionally followed in each case by replacement of the anion in the product by another anion. The compounds of the invention contain at least one asymmetrically substituted carbon atom and may be prepared in racemic or optically active forms. The compounds are spasmolytics.
Patent GB-1151335-A (GB)
Title: A System for Monitoring the Condition and Operation of Driving and Conveyor Belts
Inventor: BLOMQUIST ALFRED JOHN ANTHONY
IPC: B65G43/02
Filed: 1966-04-13
Abstract: 1,151,335. Magnetic tests. HAWKER SIDDELEY DYNAMICS Ltd. April 13, 1967 [April 13, 1966], No.16235/66. Heading G1N. A system for monitoring the condition and operation of a driving or conveyer belt comprises inclusions of magnetic material in the belt, cooperating with stationary flux-responsive means to detect rupture of the belt, lateral misalignment or variations in speed due to belt slip. Detection Principle. (i) the magnetic material may act as a screen between a permanent magnet above the belt and a reed switch below. (ii) the material may be magnetized to operate the reed switch directly. (iii) it may act as a magnetic bridge to generate impulses in inductors wound on co-operating magnets Figs. 8, 9 (not shown). Detecting Belt Slip. Regularly spaced inserts in the belt generate pulses in the detector which are compared in frequency with the output of a generator coupled to the drive or driven member. Pattern or Layout of Inclusions. (i) Fig.1 (not shown) the magnetic material covers the whole belt and co-operates with a transverse row of magnets and reed-switches. (ii) Fig. 3 (not shown) the material may be in strips along the edge to detect lateral misalignment (and edge tears). (iii) Fig.6, for comprehensive detection, the magnetic material (shown shaded) may be in zig-zag form, with a continuous strip at the right-hand side co-operating with switch and magnet 23, 24 to indicate lateral displacement; the insert also acting as a screen between magnet and switch 20, 21, and a flux bridge between generator and sensor 18, 19. (iv) alternative diagonal patterns are illustrated in Figs.5, 7 (not shown); the relative operation of two detectors co-operating with a double-diagonal pattern may be used to detect lateral displacement.
Patent GB-826282-A (GB)
Title: Improvements in, or relating to, furnaces
Inventor: TOMLIN RONALD LESLIE MERVYN
IPC: F27D99/00
Filed: 1957-05-23
Abstract: 826,282. Tilting furnaces. BIRLEC Ltd. May 23, 1958 [May 23, 1957], No. 16337/57. Class 51 (2). In a tilting furnace 1 mounted in a framework 2 below a floor opening 3 and having a plate 7 attached to the furnace and flush with the floor 4, a guard comprising a fixed unit 8 and a free unit 9 each of sector shape elevation and U- shape in plan embraces the furnace, so that when the latter is raised the floor opening is protected. Removable transparent or mesh plates cover openings 10 and 11 in the sheet metal sides and base of each guard unit. The furnace is tiled about an axis 5 and rests on framework 6, and the unit 8, which is fixed to the furnace below plate 7 telescopes within the free unit 9. One or more stops 13 limit the upward movement of the free unit by contacting a girder 14. Wire ropes 17 attached to brackets 19 below the floor 4 pass over pulleys 16 on the free unit to brackets 18 on the internal surface of the fixed unit base. As the furnace and fixed unit are tilted the free unit also tilts but at a slower speed due to the arrangement of the ropes and pulleys. This arrangement also prevents fouling of current-conducting strips 21 extending between the furnace and the support 20.
Patent GB-1356156-A (GB)
Title: Boring machines
IPC: B23B39/08
Filed: 1971-05-21
Abstract: 1356156 Boring machines; gauging bores IKEGAI TEKKO KK 21 May 1971 [26 May 1970] 16350/71 Headings B3B and B3C [Also in Division G3] A numerically controlled boring machine incorporates compensation for bore size by determining error in a trial working operation and compensating the subsequent numerically controlled working operations. As shown, Fig. 2, a bore measuring device 303 is mounted on a spindle head 2 of a boring machine and moved into a measuring position by a feed unit 302. The device 303 is connected to the unit 302 by parallel springs 104 and hung on a support frame 304 by a balance arm 101, a weight 102 and a leaf spring 103. The bore is engaged by a pair of elements 309, 310 of which the element 309 is positioned by a screw 308 driven by a servomotor 305 controlled by a programmed numerical control system. The error between the programmed and actual bore is determined by pivotal movement of the element 310 positioning the core of a differential transformer 311.  A bore compensating device, Fig. 5, for a tool 111 mounted in a spindle 4 comprises an eccentric sleeve 401, rotating in bearings 112- 114, driven, through Oldham couplings 402, 404, by a gear 403 engaging a gear 420 driven by a shaft 425 from a conventional main spindle gear train, not shown. The gear 403 is supported on a stub shaft 421 by bearings 415. The eccentricity of the spindle 4 is controlled by varying the relative positions of the gear 403 and the spindle 4 through a differential gear 408 and gears 405, 414 engaging the gear 403 and a gear 422, on the sleeve 401, respectively. The adjustment of the differential gear is effected through a worm and wheel 409, 412 by a servomotor, not shown, controlled by the programmed numerical control system.  The programmed numerical control system, Fig. 8, is shown for a boring machine wherein a workpiece W is mounted on a turntable 8 and positioned by lead screws driven by servomotors 801, 802, 803, and a cutting tool 111 is mounted in a spindle 4, the servomotors are controlled by a numerical control device 10 in accordance with a programme memorized on a magnetic drum or tape. Initially, the radius of gyration of the tool 111 is set at less than the desired final size and a short bore cut which is sensed by elements 309 and the analogue measurement fed to a control device 9. The control device comprises an analog-digital converter feeding a register which is read out by a programmed signal into the device 10 wherein a compensation for the tool eccentricity is determined and fed to energize the servomotor 305 accordingly.
Patent GB-772075-A (GB)
Title: Apparatus and method for controlling fluid flow
IPC: G05D7/06
Filed: 1955-06-07
Abstract: 772,075. Axial-flow fans; radial-flow pumps. SULZER FRERES SOC. ANON. June 7, 1955 [June 15, 1954], No. 16372/55. Class 110 (1). [Also in Group XXXVII] Fluid is conveyed by a dynamic impeller, a variable area flow control device and an impeller speed control device being so interconnected that the flow control device operates over a range of cross-sectional areas which are at least partly larger when the impeller speed is at a higher value than when it is a lower value. A fan 2 is driven by 3-phase slip-ring induction motors 3, 4 having a different number of poles; for example, motor 4 may have twice as many poles as motor 3. Fine adjustment of the fan output is effected by a throttle valve 5, actuated by a control device 8 through links 7, 6. Link 6 has a pin which works within a slot 9 on a rod 10, so that when the pin comes against either end of the slot it can move the rod 10 to actuate a step-by-step speed controller 11 to change the impeller speed and thereby effect coarse adjustment of the fan output. Electrical control signals from the step-by-step controller 11 are fed to a switchbox 18 which controls relays 14- 17 and S<SP>1</SP>-S<SP>4</SP>. On the first step of the controller 11, relays 15 and 17 are closed to energize the motor 4. Over the next four steps the relays 15 and 17 remain closed and relays S<SP>4</SP>, S3, S<SP>2</SP> and S<SP>1</SP> are successively closed to cut the resistors R4, R<SP>3</SP>, R<SP>2</SP> and R<SP>1</SP> successively out of the rotor circuit, thereby increasing the impeller speed in steps. On the sixth step, relays 15 and 17 are opened and relays 14 and 16 are closed to energize the higher-speed motor 3. Over the last four steps, the relays 14 and 16 remain closed and relays S4, S<SP>3</SP>, S<SP>2</SP> and S<SP>1</SP> are successively closed to increase the speed by steps. The two separate motors may be replaced by a single motor of the type in which the number of effective poles can be varied. The mechanical linkage between the flow control and speed control devices may be replaced by electrical or hydraulic means. The invention may be applied to a radial-flow feed water pump.
Patent GB-1147545-A (GB)
Title: Production of granular fertilizers
IPC: C05B7/00
Filed: 1967-04-11
Abstract: 1,147,545. Diammonium orthophosphatesulphate mixtures. ESSO RESEARCH & ENG. CO. 11 April, 1967 [29 July, 1966], No. 16402/67. Heading C1A. A mixture of phosphoric acid and sulphuric acid is partially neutralized with sufficient ammonia to neutralize all the sulphuric acid to diammonium sulphate plus an additional amount of ammonia not exceeding 0À8 moles per mole of the phosphoric acid to form a slurry which, together with particles comprising diammonium phosphate and sulphate and with at least sufficient ammonia to convert the acid and monoammonium salts present in said slurry to the corresponding diammonium salts, is passed to an ammoniator-granulator. The phosphoric and sulphuric acids suitably contain from 55-70 and from 95-98% by weight of the respective acids and if desired from 15- 40% of the total sulphuric acid may be directly added to the granulator. The fully neutralized granulate is sieved and undersized product is returned to the granulator at a weight ratio of 1À5 to 5 times the amount of product granules. Potassium chloride may be added to the granulator to provide a balanced fertilizer.
Patent GB-674929-A (GB)
Title: Improvements in or relating to fuels for engines
IPC: F02B3/06
Filed: 1948-06-18
Abstract: A fuel with good self-ignition properties at low temperatures and capable of rapid and complete combustion, when used in a petrol engine, diesel engine or gas turbine, comprises (a) ozonized gas oil and/or ozonized vaporizing oil, (b) ozonized kerosene and/or ozonized fuel oil and (c) methyl naphthalene, the methyl naphthalene being present in amount corresponding to 12-30 per cent of the fuel composition.  The fuel oil referred to is a heavy petroleum oil having a specific gravity of at least 0.9 at 60 DEG F.  The methyl naphthalene employed may be alpha methyl naphthalene or a crude alpha methyl naphthalene which contains both alpha and beta methyl naphthalenes with a small amount of parafins.  The oils may be ozonized separately and then mixed or may be mixed and then ozonized together.  The ozone treatment may be effected in a hermetically seated vessel provided with a stirrer, ozone or ozonized air at a pressure of 2-3 atmospheres being continuously introduced.  A proportion of 1-2 per cent by weight of ozone based on the final fuel composition is suggested as suitable.  The ozonized gas oil and/or ozonized vaporizing oil preferably forms 10-85 per cent of the fuel composition. Specifications 376,286 and 674,928 are referred to.
Patent GB-630488-A (GB)
Title: Production of novel setting compositions
IPC: C08G18/64
Filed: 1946-05-30
Abstract: Liquid or plastic setting compositions comprise mixtures of an acetal thioplast having terminal hydroxyl groups with (a) an organic compound containing in the molecule at least two of the groups -NCX, where X is oxygen or sulphur, or with (b) a thermally unstable derivative of such an organic compound, which derivative has -NCX groups linked with other such groups or with other compounds and decomposes on heating with formation of such an organic compound. Suitable acetal thioplasts having terminal hydroxyl groups are those prepared by the method of Specification 618,440 from di-(beta-chlorethyl)formal or analagous di-(omega-chloralkyl)formals or from the corresponding acetaldehyde, propionaldehyde or butyraldehyde derivatives.  The products are suitable for sealing fissures, e.g. in petrol tanks. Suitable organic compounds have the formula R(NCX)2, where R is an alkylene, arylene, or halo-arylene radical, e.g. ethylene-, trimethylene-, tetramethylene-, hexamethylene diisocyanates, propylene and butylene 1 : 2-diisocyantes, and butylene 1 : 3-diisocyanates; and o-, m-, and p-phenylene diisocyanates, 1 - methylphenylene - 2 : 6 - diisocyanate, 1 - methylphenylene - 2 : 4 - diisocyanate, 1 - chlorophenylene-2 : 4-diisocyanate, naphthylene - 1 : 4 - diisocyanate, and diphenylene - 4.41 - diisocyanate, or the corresponding isothiocyanates.  Compounds of the type <FORM:0630488/IV (a)/1> , and compounds containing three or more isocyanate or isothiocyanate groups may also be employed; suitable thermally unstable compounds of polyisocyanates and polyisothiocyanates include addition compounds with arylene diamines or malonic esters and dimers such as dimeric-2 : 4-tolylenediisocyanate.  In an example, a mixture of the liquid product made as in example 1 of Specification 618,440 and hexamethylene-1 : 6-diisocyanate was applied to a joint between aluminium sheets and set in a few hours and was strong and flexible in a week.  The speed of setting can be increased by adding a dicarboxylic acid, e.g. tartaric or phthalic acid.
Patent GB-865855-A (GB)
Title: Improvements in or relating to machine tools
IPC: B30B15/14
Filed: 1959-05-14
Abstract: 865,855. Power presses. FORWOOD DOWN & CO. Ltd. May 14, 1959 [May 16, 1958], No. 16513/59. Class 83 (4). A machine-tool such as a press or a broaching- machine has an inching-device comprising an auxiliary motor 12 coupled through a reduction gear 11 and clutch 9 to an extended shaft 3 of the machine driving-motor 1. The clutch is preferably an electromagnetic clutch fed through brushes 15. A centrifugal over-speed switch 18 is driven through gearing 19 to prevent the speed of shaft 3 exceeding 44 r.p.m. when driven by the auxiliary motor. The clutch may be energized whilst the main electric motor 1 is running, to act as a brake. An electric circuit is described, Fig. 3 (not shown).
Patent GB-111320-A (GB)
Title: Improvements in and relating to Furnaces.
IPC: F23H11/18
Filed: 1916-11-17
Abstract: 111,320. London Electric Supply Corporation, and Fox, A. G. Nov. 17, 1916. Grates.-An ash-stripping bar or plate at the rear end of a chain grate is adjustable, so as to bank up the fuel when desired, between positions in which its face is tangential and radial, respectively, to the curved rear end, the point of engagement with the grate surface remaining practically the same. Fig. 1 shows a stripper e mounted over the lean-to air-seal plate a and upon an adjustable bar b attached to levers c at the sides of the furnace. The levers c are operated to raise and lower the bar b by levers and links w, x, y, the toe d of the stripper e remaining almost stationary. In a modification, Fig. 4, the stripper e is mounted between the grate and the air-seal plate a, being pivoted at k, on horns projecting from the plate a, which then bears against a curved plate integral with, and descending from, the underside of the stripper e.
Patent GB-1430087-A (GB)
Title: Ventilator assemblies for public serivce and other vehicles
IPC: B60H1/26
Filed: 1972-04-11
Abstract: 1430087 Vehicle roof ventilators WILFRED OVERTON Ltd 11 April 1973 [11 April 1972] 16532/72 Heading B7B [Also in Divisions F3-F4] A ventilator for association with an opening in a roof of a motor coach comprises a frame 2, a panel 1 having at least three bars 6 extending through retaining jaws on the frame 2 and resilient detents acting between each bar 6 and the associated jaws to hold the bar 6 in each of several discrete axial position relative to the jaws. In the form shown, four bars are provided, two on each of two opposite edges of a rectangular panel 1 adjacent the corners thereof. Each detent is formed by a spring loaded plunger 8 and a leaf spring 10 which engage undulations 7 on the corresponding bar 6. The bars are tiltable in the jaws whereby the panel 1 may be pivoted about any edge or raised bodily from the frame 2. The panel 1 includes a transparent central portion and a metal rim 3.
Patent GB-365003-A (GB)
Title: Projectile with automatic driving band
IPC: F42B14/02
Filed: 1931-06-08
Abstract: 365,003. Projectiles. BRANDT, E. W., 101, Boulevard Murat, Paris. June 8, 1931, No. 16636. Convention date, June 16, 1930. [Class 9 (i).] A projectile for a smoothbore gun is made with a peripheral groove 2 at the part of maximum diameter fitted with an extensible, elastic, or plastic ring 1, which is expanded and forced against the forward end of the groove between the projectile and the bore of the gun by the propellent gas pressure acting between the outside of the projectile and the bore of the gun.
Patent GB-1100595-A (GB)
Title: Treatment of foam rubber articles
Inventor: RODAWAY BRUCE KENNETH
IPC: C08J9/42
Filed: 1964-04-23
Abstract: A flexible foam rubber article is impregnated with a latex or other dispersion of a resinous styrene polymer or copolymer, excess dispersion removed and the impregnated article dried.  The resinous copolymer may be a styrene: diene copolymer, e.g. styrene and butadiene, isoprene, or other substituted butadienes, such as a styrene: butadiene copolymer which may contain at least 60% by weight of styrene.  The latex may be diluted to a polymer content of from 2 to 20% by wt.  The foam rubber article may be produced from a natural or synthetic rubber latex, or a blend thereof, or a polyurethane. Impregnation may be effected by immersion in the latex or by spraying with the latex.  The resin latex may also contain copolymers obtained by polymerizing divinyl benzene or a substituted divinyl benzene with styrene, or with styrene and butadiene.
Patent GB-755891-A (GB)
Title: Improvements in or relating to sewing machine
IPC: D05B19/00
Filed: 1954-06-08
Abstract: 755,891. Sewing-machines. GEGAUF AKT.- GES. BERNINA-NAHMASCHINENFABRIK, F. June 8, 1954 [June 18, 1953], No. 16808/54. Class 112. [Also in Group XXIV] Needles, shifting laterally.-Plain zig-zag stitching is produced positively at high speed and ornamental stitching is produced by cams, the two mechanisms being actuated by gears driven at different speeds and being selectively connected to the lever from which the needle shift is derived. In the machine shown, the needle-bar gate 12 is shifted about a vertical axis by a link 14 carrying a slide-block 19 in a guideway in an arcuate lever 17 fixed on a shaft 18, the block being adjustable along the guideway by known means engaging the forked end 15 of the link to vary the throw of the needle. Freely mounted on the shaft 18 are a forked lever 25 embracing a cam 22 driven from the needle-bar shaft 4 through spiral gears 20, and a forked lever 29 embracing a roller on the end . of a bell-crank 31, 33 which is actuated by cams 38 on a shaft 42 driven from the shaft 4 through worm gearing 39; both levers 25, 29 have notches N for selective engagement by a coupling element slidable parallel to the shaft 18 in a member fixed on that shaft, whereby either of the levers is connected to the shaft as desired for actuation of the lever 17. The cam follower 34 is slidably mounted in a horizontal slot in the upper end of the crank arm 33 so as to be movable into position to engage any one of a series of cams fixed on the shaft 42, and is shifted along this slot by a finger lever 35 mounted on a universal joint on the lower wall of the machine arm 2 so that it can swing across the arm along a scale 49 and can also swing in a plane parallel to the shaft 4 to disengage the follower from the cams and a detent 47 from a fixed notched locating bar 48. Movement of the lever 35 across the arm also actuates the coupling element by a forked arm on the lever pivot, so arranged that the element is in engagement with the lever 29 so long as the follower 34 is opposite any of the cams 38, but further movement of the lever 35 towards the front disengages the element from the lever 29 and engages it with 25. If desired the coupling element may be actuated by means separate from the cam-selecting lever 35; the gear 39 may, in a modification, be driven through the gears 20.