baber/WOPTO huggingface dataset:
Patent GB-572019-A (GB)
Title: Improvements in or relating to portable conveyors
IPC: B65G41/00
Filed: 1943-10-14
Abstract: 572,019. Conveyers. FISHER, W. C., and FOURWAYS (ENGINEERS), Ltd., (formerly FOURWAYS GARAGE, Ltd.). Oct. 14, 1943, No. 16883. [Class 78 (i)] In a portable conveyer of the kind including a pair of conveyer-band booms, a single endless band serves for both booms and passes directly without discontinuity along the upper surfaces of the booms, means being provided to maintain the band tangential to fixed circles concentric with the boom pivot axes. The booms g, h, Figs. 1, 1a, are carried by shafts e, f, respectively, which are mounted in bearings on the frame Structure a. The conveyer chains i are connected by hardwood slats m, n, the latter of which are of either greater height than the former or are provided with upstanding projections. The lower run of the chains passes over a pair of driving sprockets z mounted on a shaft y which is disposed in a horizontal plane slightly below that containing the shafts; e, f. The shaft y is driven by an internal combustion engine 7 through chain-and-sprocket gearing. The boom h is supported by a pair of telescopic struts o which are secured in any position by clamping screws r. The boom g is supported by a pair of wire ropes s, which are attached to winding drums u, v, and by a pair of struts x which are pivoted to the structure a at j. In a modification the ropes s are dispensed with and each boom is supported in the .same manner as the boom h.
Patent GB-715329-A (GB)
Title: Improvements in or relating to journals or the like
Inventor: LOVE PHIL PRINCE
IPC: F16C33/12
Filed: 1951-07-17
Abstract: A journal for use with a plain bearing has a surface coating of columbium, iridium, molybdenum, osmium, platinum, rhenium, rhonium, ruthenium, tantalum, thorium, titanium, tungsten, ytterbium, or zirconium.  The coating is preferably applied on an intermediate layer of a highly heat-conductive metal such as silver or copper. Several inter-layers may be employed at least one of which is relatively soft and plastic.  The inter-layers may be of materials of progressively changing modulus of elasticity. The coating may be effected by electro-plating in the case of osmium, molybdenum or titanium, by metal spraying for molybdenum or titanium or by a process of cathode sputtering in the case of tungsten.
Patent GB-724615-A (GB)
Title: Improvements in or relating to a coupling for a flexible metal hose
IPC: F16L33/26
Filed: 1953-06-19
Abstract: 724,615. Hose end fittings. CONNECTICUT HARD RUBBER CO. June 19, 1953 [July 12, 1952], No. 17016/53. Class 99 (1). A coupling fitting for the end of a flexible metal tube 10 which is helically or circumferentially corrugated comprises a sleeve 12, an insert 17, a rubber ring 26 located between sleeve and insert and extending into the grooves of the tube, and means for compressing the rubber ring such as a pressure ring 22 and gland-nut 24. A braided wire covering 11 of the tube may be flanged outwardly at 23 and bonded to the pressure ring. The insert is screwed into the sleeve and has a coarse-threaded extension 20 which fits the corrugations of the tube. The rubber ring may be formed by introducing uncured rubber through an opening 27, and vulcanizing. Instead of a nut 24 the sleeve may have an internal terminal flange, pressure being exerted on the rubber ring by screwing the insert into the sleeve. In another form the sleeve 12 and insert 17 are integrally connected (see Fig. 5), the extension 20 being unthreaded. Rubber is introduced through opening 27 and flows through holes 30 so as to fill the annular recess between sleeve and insert, and so as to surround the corrugated tube end.
Patent GB-604145-A (GB)
Title: Improvements in and relating to fertilizers
IPC: C05B19/02
Filed: 1945-07-04
Abstract: Phosphatic material comprising calcium phosphate is treated with a liquid agent comprising an acid capable of solubilizing the phosphate, granulated with aqueous additions if necessary, and heated at 200-600 DEG  C. for 1/2 -3 hours to produce low soluble slow-acting fertilizers.  Ground rock phosphate or bones may be reacted with sulphuric, phosphoric, hydrochloric or nitric acids with or without potassium, sodium or ammonium salts.  The total liquid used is preferably 55-63 per cent by weight of phosphate. Granulation may be performed in a tumbler, drum granulator, paddle granulator or planetary mixer, and calcination in a rotary calciner. From 0.6 to 6 mols. of H2SO4 per mol., P2O5 may be added.  Dicalcium or monocalcium phosphate, single, double or treble superphosphates may be formed. Specifications 584,866, 595,714, 604,119 and 604,150 and U.S.A. Specification 1,947,138 are referred to.ALSO:Phosphate material comprising calcium phosphate is treated with a liquid agent comprising an acid capable of solubilizing the phosphate, granulated with aqueous additions if necessary, and heated at 200-600 DEG C. for 1/2 -3 hours to produce low soluble, slow acting fertilisers.  Ground rock phosphate or bones may be reacted with sulphuric, phosphoric, hydrochloric or nitric acids with or without potassium, sodium or ammonium salts.  The total liquid used is preferably 55-63 per cent by weight of phosphate. Granulation may be performed in a tumbler, drum granulator, paddle granulator or planetary mixer and calcination in a rotary calciner.  From 0.6 to 6 mols of H2SO4 per mol P2O5 may be added.  Dicalcium or monocalcium phosphate, single, double or treble super-phosphates may be formed.  Specifications 584,866, 595,714, 604,119, [Group III], 604,150 and U.S.A. Specification 1,947,138 are referred to.
Patent GB-126070-A (GB)
Title: Improvements in and relating to Transport Vehicles Propelled by an Endless Moving Chain Track or Tracks.
Inventor: TRITTON WILLIAM ASHBEE
IPC: B62D55/065
Filed: 1916-11-28
Abstract: 126,070. Tritton, Sir W. A. Nov. 28, 1916. Endless-track vehicles.-Transport-vehicles are provided with one or more main propelling chain. tracks b passing round fixed driving and idle sprockets and with one or more auxiliary chaintracks mounted on a pivoted frame at the rear of the vehicle. The main and auxiliary chain-tracks are carried on sprockets which are driven by spur gearing on the shaft p about which the auxiliary tracks oscillate. The drive is effected by chain gearing from shaft y driven by worm-gearing. The frames carrying the auxiliary chain-tracks are under the influence of springs or other yielding devices 7.
Patent GB-545577-A (GB)
Title: Improvements in electric signal detecting circuits
IPC: H03D3/22
Filed: 1940-12-02
Abstract: 545,577. Valve circuits for wireless reception ; ; frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 2, 1940, No. 17151. Convention date, Nov. 30, 1939. [Class 40 (v)] Radio receiver circuits, for indicating tuning error, or for detecting frequency-modulated or amplitude-modulated waves, comprise a tuned transformer with its primary and secondary voltages applied to successive electrodes of a valve, the arrangement being such that one output circuit is traversed by currents dependent on the wave amplitude, and the other by currents dependent on the wave frequency. Fig. 1 shows a circuit for indicating correct tuning, in which the tuned output transformer 14 of the IF amplifier 12, 13 has its primary connected to the anode 25 of the valve 17 and its secondary connected to a grid 15. Rectification at the grid gives an audio output across the resistance 21 which is tapped to an amplifier at 22. A.V.C. voltage is also taken to the preceding amplifiers after smoothing by resistance 32 and condenser 33. Smoothed control voltage is also fed from the resistance 21 to the left-hand grid 29 of a double triode valve 28. The right-hand grid 27 is connected through a filter 26 to the anode 25 of the valve 17. If the circuits 14 are not accurately tuned to the wave passing through the amplifier, the phases of the primary and secondary voltages vary from their normal quadrature relation, causing a change in the anode current of the valve 17 and an alteration of the voltage on the grid 27. The anodes of the valve 28 are connected to control electrodes 36, 37 of a cathode-ray indicator tube 38, so that mistuning is indicated by want of symmetry in the fluorescent sectors of its target anodes. Fig. 9 shows a modification arranged for alternative reception of amplitude-modulated and frequency-modulated waves. The primary and secondary voltages of the coupling 14 are applied to grids 15, 41. Amplified modulation is detected across the load resistance 47 associated with the rectifying grid 15, and may be passed through a two-way switch 45 to an AF amplifier 51. Frequency modulation is detected across a resistance 44 in the anode circuit of the valve 17, and may be passed through the switch to the same amplifier 51. A compensated volume control network 50 may be provided. In a further arrangement (Fig. 10, not shown), the output resistances 47, 44 are connected to the grids of a pair of valves which have their anodes connected in push-pull relation to a further AF amplifier. When the switch is set for receiving amplitude-modulated waves the resistance 44 is disconnected, but for receiving frequency-modulated waves both grids are operative with the result that any interference due to amplitude modulation is balanced out.
Patent GB-746571-A (GB)
Title: A two-cylinder compressor, particularly for refrigerators
IPC: F04B27/02
Filed: 1954-06-11
Abstract: 746,571. Reciprocating compressors. LICEN. TIA PATENT-VERWALTUNGS-GES. June 11, 1954 [June 12, 1953], No. 17194/54. Class 8(1). A compressor comprises a double-ended cylindrical piston 8 having secured thereto a clamping ring 11 integral with a slotted sleeve 12 in which a block 7b engaged by a crank pin 7a is slidably mounted.
Patent GB-120572-A (GB)
Title: Improved Photographic Film Envelope.
Inventor: HANSEN JENS PETER
IPC: G03B17/34
Filed: 1918-10-22
Abstract: 120,572. Hansen, J. P. Aug. 29, 1917, [Convention date]. Envelopes, plate and like.-An envelope of thick paper or the like for photographic films or plates comprises a back 1 having opposite edges 2 bent over, one of the remaining edges 4 being bent over the edges 2, and the fourth edge 8 being bent under a strip 6 connecting the edges 2. A shutter 9 slides between the parts 6, 8, and has its inner end 10 bent so as to hook under the edge 8 when the shutter is withdrawn, its outer end 11 forming a tongue which is bent behind the back and may be sealed to ensure light-tightness. The envelope may contain a film 7 or a plate carried bv strips having an angular section and placed within the envelope along opposite sides. The envelopes may be used in a camera such as is described in Specification 119,245, the camera having a hinged back frame and means for engaging the edge of the part 4 to hold the envelope as its shutter is withdrawn. They may also be used in a developing-apparatus as described in Specification 119,246. [Class 98 (ii). Photographic processes &c.].
Patent GB-1504084-A (GB)
Title: Method and apparatus for cutting a continuously moving we
IPC: B26F1/20
Filed: 1976-04-28
Abstract: 1504084 Cutting apparatus BRODERNE HERRMANN AB 28 April 1976 [29 April 1975] 17277/76 Heading B4B An apparatus for cutting a continuously moving web 2 of material, e.g. paper or plastics, comprises a roll 1 over which the material is adapted to run, a cradle 6, 7, extending along the length of the roll, a slide 9 freely movable along the cradle and a freely rotatable cutter disc 4 attached to the slide and adapted to be pressed against the roll, the cutter being disposed at an angle to the longitudinal axis of the roll. The cradle is formed by a pair of guide rails 6 connected to end frames 7 provided with pivot shafts 8. The cutter disc 4 is freely rotatable in a fork 10 secured to the slide 9; the periphery of the disc may be formed with points in order to form a line of perforations across the web. In use, when it is desired to sever a web, the cradle is pivoted either manually or by power, to bring the cutter disc into contact with the roll. Due to the inclination of the cutter disc relative to the axis of the roll, the slide is caused to move along the guides and thereby allow the disc to sever the web. A further freely rotatable wheel 5 is mounted on the slide with an opposite inclination such that by pivoting the cradle in the opposite direction, the slide can be returned to its starting point, the periphery of the wheel 5 can be covered with a friction material. Alternatively the wheel 5 may be in the form of a cutting disc. In a modification, Fig. 3 (not shown), the cutter disc 4 and wheel 5 are mounted on a carrier (17) which is pivotally mounted on the slide (15) about an axis (16) which is perpendicular to the axis of the roll.
Patent GB-1199128-A (GB)
Title: Rear-Engine Motor Vehicles
IPC: B60K5/12
Filed: 1969-04-02
Abstract: 1,199,128. Power unit arrangements; vehicle suspensions. GENERAL MOTORS CORP. 2 April, 1969 [25 April, 1968], No. 17296/69. Headings B7D and B7H. A rear engine motor vehicle comprises a pair of driven wheels 14, 16 on an axle in aggregate with a longitudinally disposed engine 8 and transmission gearing 10, the forward end of the aggregate being pivoted to the vehicle body 2 by a pair of spaced resilient trailing arms 36, 38 and the rear or engine end being pivotally connected by a shackle 20 which with the trailing arms defines an instantaneous virtual centre 62 for the aggregate disposed rearwardly of the wheels and below the lowermost part of the body to reduce " squat " of the body during acceleration of the vehicle. The trailing arms comprise cantilever leaf springs secured to the axle casing and the shackle 20 is connected to the engine and body respectively by resilient bushes 34 and 26, 28 with stops 70, 66, 68, 72 to prevent relative lateral movement. On the other hand lateral movement of the spring eyes 44, 46 is controlled by resilient bushes 72, 74, 76 to provide understeer when cornering the vehicle.
Patent GB-947183-A (GB)
Title: Synthetic threads or yarns of high air content and a process for their manufacture
IPC: A01B63/112
Filed: 1960-05-16
Abstract: Threads or yarns of high air content are made by separately making fibres or filaments of the same synthetic polymer but having two or more differently shaped cross-sections and then mixing the fibres or filaments together.  Preferred cross-sections include circular; elliptical, rectangular, dentate and star-shaped, and the fibres or filaments may be crimped, either before or after working up into a thread or yarn.  Specified starting materials include polyamides (e.g. polycaprolactam), polyesters, polyacrylonitrile, polyolefins (e.g. polypropylene), and polyvinyl alcohol.  Examples describe the spinning of such yarns by the worsted yarn process from polyethylene terephthalate fibres, and by the cotton spinning process from polyacrylonitrile fibres.  Such threads and yarns are suitable for making warm underwear, voluminous suiting and costume cloth.
Patent GB-1383538-A (GB)
Title: Variable threshold amplifiers
IPC: H03K5/02
Filed: 1972-04-14
Abstract: 1383538 Pulse thresholding circuits DATA RECOGNITION Ltd 14 April 1972 17348/72 Heading H3T A thresholding circuit for example for a document reader comprises a differential amplifier 65 having the input signal A applied to one input terminal 2 and, via a diode D1, to the other and to a capacitor 1 which is arranged so that it provides at the other input a reference voltage B which follows slow variations but not rapid variations in a discharge direction so that such rapid variations cause the output to switch and further discharge thus to cease. As shown, the switching blocks a diode D4 and thus the discharge path through R3. The rate of discharge (line Y) may be varied by a variable voltage clamping circuit connected to terminal 69 (Fig. 3, not shown).
Patent GB-957174-A (GB)
Title: Space-heating radiators
IPC: F28D1/03
Filed: 1960-05-17
Abstract: 957,174. Air heaters; space heating radiators. J. J. G. DUTRIEUX. May 17, 1960 [May 25, 1959], No. 17372/60. Heading F4S. A space-heating radiator for a central heating plant is made of welded sheet metal plates at least one of which has upstanding ribs forming with the adjacent parts of the plate U-shaped gaps in which are disposed fins which are held in the gaps owing to elastic distortion of the fins or by separate retaining elements. The fins form open-ended ducts ensuring heating by convection but the body of the radiator may also present radiating surfaces. As shown the radiator comprises two plates 2, 3 the front plate 2 providing a substantially flat radiating surface and having upper and lower manifolds 4, and the back plate 3 having hollow ribs 5. Between the ribs 5, the plate 3 is formed with inwardly projecting flattopped bosses 8 which are tack-welded at 9 to the front plate 2. The fins 15 are formed of sheet metal elements which are welded together at 16 between their longitudinal edges prior to being fitted elastically in gaps 7 between the ribs 5. Fig. 3 shows various designs of fin, the elements of which can conveniently be nested together for storage and transport prior to being welded together in pairs. Ducts 17 promoting convection are formed between the fin elements and the ribs 5. Instead of or in addition to the friction fit, the fins may be retained by separate angle members 19, preferably fixed by screws and nuts. The ends of the ribs 5 are crimped and welded at 6. The manifolds 4 are fitted with screw-threaded mirrors 11 supported by flanged rings 12 resilient enough to compensate for any lack of alignment. Low projections such as the horizontal projections 29 may be provided on plate 2 to increase radiation. The fins need not extend the full height of the ribs and may be discontinuous to admit cooler air at several levels. In a modification, the radiating surface at the front of the radiator is extended above the tops of the ribs 5.
Patent GB-618452-A (GB)
Title: Improvements in and relating to the preparation of methyl silicone gums and elastomers
IPC: C08G77/38
Filed: 1946-06-11
Abstract: A silicone gum is prepared by mixing methyl silicone oil, having a methyl to silicon ratio of 1.98-2.00 and having all the silicon atoms connected to at least one and not more than three methyl groups, and 98 per cent of the silicon atoms being connected to two methyl groups, with 20N-36N sulphuric acid or with a little chlorosulphonic acid.  In the examples: (1) methyl polysiloxane oil (99.6 per cent dimethyl substituted silicon units and 0.4 per cent monomethyl silicon units) was shaken with varying amounts of concentrated sulphuric acid to produce gums. With the largest amount of sulphuric acid the product was a viscous liquid which yielded a gum on dilution to an acid concentration of less than 75 per cent.  For preparing elastomers the gum is preferably washed free from acid or is milled with lead oxide.  Titanium dioxide and benzoyl peroxide are then mixed in and the product may be pressed and vulcanised.  In example (3) a methyl silicone oil is stirred with chlorosulphuric acid and the resulting gum milled with lead oxide, titanium dioxide and benzoyl peroxide.  In example (4) octamethyltetrasiloxane is treated with sulphuric acid of varying concentrations and the times for gum formation compared.  In example (5) it is shown that dispersion of the acid in the oil with a wetting agent results in a quicker conversion to gum.  The gum was dissolved in toluene to facilitate neutralisation and separation of the acid, and an elastomer was produced by addition of titanium dioxide and benzoyl peroxide.  In example (6) washing of acid from an insoluble gum on corrugated rollers is described.  In example (7) a gum was prepared from an oil containing mono-, di- and trimethyl silicon units.  In example (8) a methyl silicone oil is dissolved in 36N sulphuric acid.  The solution is dropped into 14.4N sulphuric acid and yielded a solid gum.  In example (9) octamethylcyclotetrasiloxane was dissolved in 36N sulphuric acid and dropped into water.  A liquid gum resulted which shaken with 14.2N sulphuric acid yielded a solid gum.  Specifications 549,081, 586,189, 592,018, 594,481 and 618,453 are referred to.
Patent GB-255849-A (GB)
Title: Improvements relating to cooling and ventilating systems for dynamo-electric machiner
IPC: H02K9/24
Filed: 1926-07-12
Abstract: 255,849. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Luke, G. E.). July 23, 1925, [Convention date]. Dynamos and motors, cooling and ventilating: enveloping in special media.-In a dynamoelectric machine which is cooled by hydrogen or other combustible gas flowing in a closed system, external ventilating means are provided for drawing off the air surrounding the machine and prevent it, and any of the gas which may leak into it from the machine, from diffusing into the air of the room in which the machine is placed. In the form shown, the machine 1 has a closed-circuit combustible gas cooling- system comprising fans 4, 5 on the rotor which direct the gas through the air gaps, radially outwards into a casing 11, over the outlet cooler 13 and into the space between the machine casing 7 and an outer casing 2. Surrounding the casing 2 is another spaced casing 14 having an exit, with or without exhausting means 16, and inlet ports 17. Air is continuously drawn between the casings 2, 14 and carries away any gas which may leak from the inner closed gas system. The pressure of the inner combustible gas is preferably kept higher than that between the casings 2, 14 so that infiltration of air into the combustible gas is prevented.
Patent GB-1004718-A (GB)
Title: Method of construction of elements, modules and circuits for pneumatic digital computers
Inventor: SAMET FRANK
IPC: F15C3/06
Filed: 1964-04-27
Abstract: 1,004,718. Pneumatic computer element. GENERAL PRECISION Inc. April 27, 1964, No. 17407/64. Heading G4B. [Also in Division F2] A pneumatic computer element comprises a shuttle capable of assuming a number of stable positions in a cylinder made up of a plurality of plates including a central cylinder plate 46 (Fig. 5) for housing the shuttle sandwiched between two port plates 49, 50 providing connections 57, 59, 61 between the cylinder 47 and two matrix plates 51, 52 having grooves in each of their faces and covered by flat cover-plates 55 whereby the elements are interconnected by a pattern of holes drilled in the matrix plates joining the grooves according to the logic to be performed by the circuit. Each matrix plate has one longitudinal groove connected to the atmosphere, another to a pressure source and a plurality of diagonal grooves intersecting on either side of the plate. Uniform holes may be drilled in the matrix plates or a restricted connection may be made by drilling a double diameter hole 89, 90 (Fig. 15) and inserting a plug 92. The element is formed such that the ball closes an axial aperture 57, 58 (Fig. 5) when in a stable position and the closure of a radial aperture 59, 61 or 60, 62 causes the ball to move to the opposite stable position. An element may have one or two radial apertures at each end, two inputs being utilized in an " and " element. Specifications 1,004,719 and 1,004,720 are referred to.
Patent GB-602608-A (GB)
Title: Improvements in or relating to pouring outlets for vessels
IPC: A47J36/14
Filed: 1945-07-09
Abstract: 602,608. Spouts of tea-pots &c. LIVING- STONE, J. G. July 9, 1945, No. 17433. Convention date, May 31, 1944. [Class 66] The spout of a jug or tea-pot &c. is recessed at 33 between the lip of the spout and a part 34 which is high when the teapot is in the pouring position, so that after pouring, liquid which is forward of the high point tends to accumulate in the recess 33 from which it or some of it drains back into the tea-pot when the latter is stood on its base. A channel 32 may extend from the recess 33 to the lip.