baber/WOPTO huggingface dataset:
Patent GB-404700-A (GB)
Title: Improvements in or relating to muffs for the radiators of motor cars
IPC: B60K11/04
Filed: 1932-07-21
Abstract: 404,700. Radiators for motor vehicles. HANNING, G. H., Little Melton Vicarage, Norwich. July 21, 1932, No. 20634. [Class 29.] A muff adapted to cover the core of the radiator is secured in position by press buttons engaging studs 6 carried by a bar 1 secured to the radiator by bolts 4. In a modification, two bars arranged at the sides of the core are provided, while in another arrangement the bar is replaced by a frame 9, Fig. 4. The muff may consist of two sections 14, 15, Fig. 7, formed of fabric reinforced by steel strips 17. In a modification, the upper part of the muff may be folded back over the lower part.
Patent GB-614343-A (GB)
Title: Improvements in or relating to means or appliances for use in suspending or supporting mirrors and other flat articles
IPC: A47G1/16
Filed: 1946-07-11
Abstract: 614,343. Suspending mirrors on walls. LEVY, S., and NEWTON, Ltd., T. July 11, 1946, No. 20704. [Class 52 (iv)] Mirrors or other flat articles are suspended by means of a yoke b or frame of stout resilient wire provided with a plurality of clips or hooks c to engage the edges of the article a and having a suspension chain d<2> or the like secured thereto so that when the chain is under load the yoke is tensioned to hold the clips in place.
Patent GB-148985-A (GB)
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,985. Sigrnal Ges. Jan. 20, 1919, [Convention date]. Addition to 148,976. Subaqueous audible signals.-The main diaphragm 6 of a sound transmitter or receiver carries an oscillating system consisting of masses 1, 2 linked by an annular diaphragm 4, and the mass 2 is attached to a thin diaphragm 8 which prevents the system from oscillating in any abnormal mode. The masses 1, 2 form the armature and field of an electromagnetic exciter or detector. Specification 21727/08 is referred to.
Patent GB-803820-A (GB)
Title: Improvements in and relating to hydraulic pit props
Inventor: BARRETT WESLEY HORACE
IPC: E21D17/10
Filed: 1955-07-19
Abstract: 803,820. Hydraulic pit props. DOWTY MINING EQUIPMENT, Ltd. July 19, 1956 [July 19, 1955], No. 20899/55. Class 20(2) A telescopic hydraulic pit prop comprises a detachable section, such as an extension 32 at the head of the prop, of longitudinally divided parts 33 held together transversely with respect to the axis of the prop by fastening means, such as bolts 42, 43, which may be released when the prop has been fully retracted under roof load so that the parts 33 may be separated from each other, as by driving a wedge between them through slots 45 or 46, to release the main part 10 of the prop. The extension 32 is formed with a socket by which it is connected to a spigot 30 at the upper end of the main part 10 of the prop. Holes 36, 37 receive a bolt which secures the extension on the spigot. The invention is applicable to a mine roof supporting structure in which the props cannot be freed by tipping them about their lower ends, and also to single hydraulic props. The prop comprises a ram tube 11 within a pressure tube 10, the lower end of the ram tube 11 being closed by a plug 22 having a U-shaped packing ring 23 held thereon by a spacer ring 24 and retaining ring 25. The pressure cylinder is closed at its base by a plate 12 having a convex surface 13 with a central spigot 14 intended for loose locating engagement in a base member of a roof supporting framework of the kind having a roof bar carried by the props. The upper end of the cylinder 10 has a gland ring 15 which retains a flexible wiper ring 16, a spacer ring assembly 17 and a bearing insert 19. A fluid connection socket 20 is fixed to the lower end of the cylinder 10. A filling and/or bleeding tube 27 extends from the plug 22 to a socket 28 in a collar 26 which carries the spigot 30.
Patent GB-1307242-A (GB)
Title: Connection elements
Inventor: LANDIS U
IPC: F21V17/16
Filed: 1970-04-30
Abstract: 1307242 Lighting fittings NOVELECTRIC AG 30 April 1970 [13 May 1969] 20922/70 Heading F4R [Also in Division E2] A device for releasably fastening a channelshaped section 1, which supports a strip light and is provided with inwardly-directed flanges 3, to a channel-shaped section 5, which may be a ceiling rail and is provided with inwardlydirected flanges 7, comprises a U-shaped member 33 which is made of steel, each side 41 thereof having an extension 37 engageable with a flange 3 of the section 1, and two catches 34, each of which is provided with an extension 35 engageable with a flange 7 of the section 5. The catches 34 are mounted in guides 38 on the member 33, are urged apart by means of a spring 40, each catch having a projection 39 which guides the spring 40, and are each provided with an extension 36 which passes through a respective aperture 9 formed in the section 1. The extension 36 serve to retain the device in the section 1 and to effect the release of the device from the section 5, the extensions being urged manually so as to force the catches 34 towards each other.
Patent GB-980056-A (GB)
Title: Device for separating,one by one,foils from a stack thereof
IPC: B65H3/08
Filed: 1961-06-09
Abstract: 980,056. Sheet separators. ERTMA S.A. June 9, 1961 [June 14, 1960], No. 20979/61. Heading B6B. Suction pads 7 deflect the forward edge of the bottom sheet 5 of a stack about a ledge 17 of a cross-piece 16, to disengage stops 4 retaining the stack in position, then the cross-piece and suction pads rotate in opposite directions about an axis 12 to straighten the forward edge of the sheet 5 and bend it about the lower edge 18 of a base-plate 1, Fig. 4 (not shown), to bring the sheet within the range of gripping means. The cross-piece 16 is mounted between cranked arms 11 pivoted to the machine frame at 12 and the suction pads 7 mounted on a cross-bar 8 supported between cranked arms 14 pivoted at 15 to the arms 11. The upper ends of arms 14 are connected by rods 32 to cranked arms 34 also pivoted at 12 to the machine frame. The arms 11, 34 are operated by means of interconnected levers 21, 22 and 36, 37, respectively, provided with cam followers 26, 38 engaging cam tracks on the front and rear sides of a rotating disc 28. In operation, the levers 34 are rotated clockwise to move the suction pads to the position shown in Fig. 3 and then the arms 11 rotated clockwise to rotate the crosspiece 16 and suction pads clockwise and anticlockwise, respectively, about the axis 12. The angle A1 through which the sheet is initially bent, may be varied according to the flexibility of the sheets, by means of the connecting rods 32. The latter are pivoted at 41 to the arms 14 and the upper ends of the rods are pivoted about pulleys adjustably mounted in slotted guides 44 in the arms 34. Although the angle A1 may be varied, the final position of the sheet after bending about the edge 18, is the same.
Patent GB-674127-A (GB)
Title: Improvements in or relating to copper base alloys
IPC: C22C9/06
Filed: 1949-08-12
Abstract: A precipitation-hardenable copper-base alloy has the following composition:-Al 6.1-8.5 per cent, Ni 6.0-15.0 per cent, Fe 6.0-12.0 per cent, Cu the balance.  The alloy may also contain Mn up to 2.5 per cent, Cr up to 0.7 per cent, P up to 0.05 per cent, Li up to 0.01 per cent, Co up to 5.0 per cent, Ag up to 0.2 per cent, Cd up to 0.5 per cent, Be up to 2.25 per cent, Ti up to 4.0 per cent, Zr up to 1.0 per cent, Pb up to 0.05 per cent, Sn up to 0.2 per cent, Zn up to 0.5 per cent, Si up to 0.25 per cent and Mg up to 0.1 per cent.  The alloy is solution treated at a temperature below its melting point, preferably at not less than 900 DEG C, and precipitation hardened at 400-600 DEG C with intermediate cooling at a rate sufficient to ensure supersaturation.  The alloy may be cooled from the solution temperature directly to the precipitation hardening temperature. Specification 485,432 is referred to.
Patent GB-816870-A (GB)
Title: Improvements in variable pitch propeller control systems
Inventor: BRETT PETER
IPC: B64C11/38
Filed: 1956-07-06
Abstract: 816,870. Variable-pitch screw-propellers. DE HAVILLAND PROPELLERS Ltd. July 4, 1957 [July 6, 1956], No. 21062/56. Class 114. In a control system for variable pitch propellers having a constant speed unit, an overspeed pitch lock governor operates at a predetermined propeller speed and pilot-controlled means are provided for setting the governor to operate at a higher speed e.g. at the maximum takeoff speed. The fine pitch oil line 4 leading to the back of the pitch change piston 2 communicates through lines 11, 10 and a valve 15 with a cylinder 8 containing a spring urged piston 7 carrying a locking tooth 6 adapted to engage locking teeth 5 associated with the piston 2 when the hydraulic pressure above the piston 7 is released. The valve 15 controls this pressure, being moved by centrifugal weights 14 when the speed is excessive to open the oil line 10 to drain 16 and to close the line 11. The valve and weights form part of a control unit 13 having beside a governor spring 19 for the weights 14 a second spring 22 engaged by a plunger 21 open to the third oil line 20 so that during takeoff the pilot may actuate the plunger to compress the second spring 22 and add its resistance to that of the spring 19. The spring 19 is set by rotating a nut 24, Fig. 3, engaging a locking piece 27, against which the spring 19 abuts, keyed to the unit 13 and locked by radial splines 25, 26 on the nut and locking piece respectively. The second spring 22 is similarly adjustable by rotating the housing 28 of the plunger 21.
Patent GB-405254-A (GB)
Title: Improvements in, or relating to, emulsifying or homogenizing machines or appliances
IPC: B01F3/08
Filed: 1932-07-27
Abstract: <PICT:0405254/III/1> In emulsifying-machines wherein materials are forced from a container through a chamber containing an emulsifying element, the element is connected with, and positioned within the chamber by, an externally operable adjusting device.  As shown a cylinder a containing a plunger d operated by a lever i<1>, and suspended between uprights C<1> by trunnions f, is formed integral with a slightly conical emulsifying chamber b containing a correspondingly shaped element e screwed into the chamber at j and adjustable therein by a finger-piece j<1>.  Materials to be emulsified are drawn into the cylinder from a separate vessel through a pipe attached to one of the trunnions f, and thence through a bore in the trunnion, a central bore in the element e, and past a ball valve f<2> in the element.  On compression the materials are forced past the element e and out through a lateral pipe g containing a ball-valve g<2>.  The elements e may be formed on its surface with ridges e<1> and instead of a screw adjustment a lever-operated cam may be employed.  The lower end of the cylinder is closed by a washer retained by a screw ring. Specification 405,255 is referred to.  The Provisional Specification refers to an emulsifying element having an adjustable stop controlling the lift of the element, or comprising a regulable needle, ball, or shutter valve, such elements being spring-loaded or otherwise: the inlet to the pump may be controlled by the piston and leak past the piston may be received in an annular recess in the cylinder, near the extreme outermost position of the piston, connected by a long tube with the supply container: other forms of leak-interception means comprises a chamber intermediate the cylinder and the supply, a recess or recesses in the piston or in piston and cylinder, or a diaphragm or baffle in the supply container: the piston may have a washer or other leak-preventing means; rotary or diaphragm pumps may be employed instead of piston pumps.
Patent GB-1454125-A (GB)
Title: Production of sodium chromate
IPC: C01G37/14
Filed: 1974-05-14
Abstract: 1454125 Sodium chromate ALLIED CHEMICAL CORP 14 May 1974 21298/74 Heading C1A Sodium chromate is produced by pelleting a mixture of chromite ore and sodium carbonate in the substantial absence of an added alkaline earth metal compound, using an aqueous pelleting liquid, drying the pellets formed and roasting them, the process being performed under at least one of the following conditions (a) to (d): (a) the aqueous pelleting liquid is an aqueous solution containing at least 5% by weight of an electrolyte which is sodium hydroxide, potassium hydroxide, sodium aluminate, sodium silicate or sodium chromate or a mixture thereof; (b) the mixture is pelleted at a temperature of at least 36‹ C.; (c) the chromite ore used in the mixture is one that has been heated in an oxidising atmosphere sufficient to oxidise at least 40% by weight of the ferrous iron in the ore to the ferric state; or (d) prior to roasting, the dried pellets are heated in an oxidising atmosphere sufficient to oxidise at least 40% by weight of the ferrous iron in the pellets to the ferric state.
Patent GB-808625-A (GB)
Title: Improvements in or relating to electric transformers
Inventor: FISHER FRANK JAMES
IPC: H01F27/40
Filed: 1955-07-22
Abstract: 808,625. Transformers. GENERAL ELECTRIC CO. Ltd. July 23, 1956 [July 22, 1955], No. 21329/55. Class 38 (2). An oil-immersed transformer having a selector switch 3 for tap changing operation is provided with diverter switch 5 of the air break type remotely disposed with respect to a main transformer tank 2 for ease of maintenance. The switches are coupled mechanically by link 9 and electrically connected by cable 8. The tank is housed in an enclosure bounded by a brick, sound-absorbing wall 4. The cable or cables and mechanical linkage may be in one and pass through a single hole in the wall.
Patent GB-654196-A (GB)
Title: Improvements in and relating to electric oven heating apparatus
IPC: F24C7/06
Filed: 1948-08-13
Abstract: 654,196. Electric cooking-ovens. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 13, 1948, No. 21425. Convention date, Aug. 15, 1947. [Class 39(iii)] An electric heating unit 12, adapted to be operated in any one of a number of positions within an oven 11, comprises an upper heat shield 14 and a lower baffle 15, which are detachably secured together, and a heating element 13, such as a sheathed resistor unit, which is affixed to the underside of said shield by brackets 22 and terminates in a connector 16. As shown. the baffle 15 has upwardly-extending flanges on each of its edges, the side flanges terminating in channel-shaped portions 28, 29 to cooperate with opposed slide rails 31, 32 on the side walls of the oven, and terminal blocks 17, into one of which the connector 16 is plugged, are fitted in the rear wall of the oven, one adjacent the floor 18 thereof and the other in the plane of the rails 31, 32. The shield 14 and baffle 15 are secured together, at the back, by a bracket 33 which depends from the shield, mounts the connector 16 and is formed at its lower end with a pair of hooked projections to engage aligned slots in the baffle, and, at the front by a resilient bent-rod bracket 46 which is riveted to the underside of the shield and is formed with a central yoke-shaped. portion 50 adapted' forcibly to contact the sloping forward side of a boss 52 on the baffle 15 and to be engaged by a locking turn-button 53 on the latter. The shield 14 has a centrally located aperture 21 to ensure proper circulation of air in the oven.
Patent GB-648181-A (GB)
Title: Improvements relating to safety control for power operated machines
IPC: F16P3/18
Filed: 1948-08-13
Abstract: 648,181. Machinery safety devices. MINNEAPOLIS-HONEYWELL REGULATOR CO. Aug. 13, 1948, No. 21452. Convention date, Oct. 23, 1947. [Class 80(iv)] [Also in Group XXXVII] A two-handed safety controller for a power-driven machine comprises an electrically controlled actuator having two spaced switches and incorporates a delay device for preventing operation of the actuator should either of the switches be closed for a predetermined interval before the other. A punch press 10 is driven by an electric motor 21 connected by a V-belt to a flywheel 19 to which a shaft 13 reciprocating a ram 14 may be coupled by a clutch 18. The clutch is linked to the armature of a solenoid 23 energized upon the closure of two switches 26, 27. Two impedances 30, 31, Fig. 3, connected in parallel respectively with the solenoid 23 and its source of power, have centre taps 41, 39 connected through a variable resistance 69 to a thermal element 28. Heating and consequent expansion of the thermal element trips a disconnecting mechanism 29 which may be mechanically reset by a push button 71. The button 71 carries contacts 81, 82 such that power to the actuator is disconnected while resetting the mechanism 29. The mechanism 29 is contained in a housing 45, Fig. 4, mounted at - the back of the machine and locked by a key 83, and is operated by a spring-loaded lever 47 retained by the element 28. One end 54 of the element is fixed to a terminal on a rib 48, the other end 57 being adjustable by means of a screw 62, and the element passes round an insulator on a pin 61 on the lever 47. The above mechanism ensures two-handed operation, and renders ineffective the tying down of anyof the switches 26, 27 or 71. Means is also provided for disconnecting the power to the actuator upon de-energization of the motor 21 and comprises a relay87, Fig. 3, connected across one phase of the motor supply (in series, if necessary, with a resistance 96). A manual switch 88 is provided to reconnect the power to the actuator should its operation be required when the motor is de-energized.
Patent GB-1315473-A (GB)
Title: Electrochemical production of transition metal organometallic complexes
Inventor: LEHMKUHL H
IPC: C25B3/13
Filed: 1971-04-19
Abstract: 1315473 Transition metal complexes STUDIENGESELLSCHAFT KOHLE mbH 19 April 1971 [17 Feb 1970] 21484/71 Heading C2J [Also in Division C7] Organo-metallic complex compounds of transition metals of Groups IV to VIII of the Periodic System, which do not contain CO as a ligand are formed by electrolysis of a solution comprising an organic solvent, a compound of the transition metal and complexing agent. The transition metal compound used may be an acetylacetonate, an organic acid salt or a alkanolate; the complexing agent may be a cyclic olefin, an alkyne, or an alkyl or aryl compound of a group 5A element, e.g. a tertiary phosphine, phosphite, arsine or stibine; and the solvent may be an aromatic hydrocarbon, an aliphatic ether, propylene carbonate or pyridine. The bath may also contain a conducting salt, e.g. an ammonium salt, a tetraalkylammonium halide or a lithium halide. The anode used may be of the transition metal whose complex is to be formed, and the cathode may be of Al, Hg, Pb, Sn, graphite, Fe, Pt, Ni or Ti. The process may be used in production of tetrakis-[triphenyl( phosphite or phosphine)] Ni; cyclododecatrieno nickel compounds, e.g. cyclododecatriene Ni triphenyl phosphine; cyclooctadiene compounds of Ni or Co; and cyclooctatetraene compounds of Fe, Cr, Mo, W, Zr, Mn, V or Ti. The complexes formed may be used as catalysts in chemical reactions, the reactants for which may be introduced into the electrolysis bath; e.g. butadiene may be transformed to methylheptatriene or diphenylacetylene to hexaphenylbenzene.
Patent GB-966691-A (GB)
Title: Flexible device
Inventor: TREVASKIS HENRY WILLIAM
IPC: F02C7/042
Filed: 1960-06-18
Abstract: 966,691. Air intakes on aircraft. DUNLOP RUBBER CO. Ltd. May 29, 1961 [June 18, 1960], No. 21493/60. Heading B7G. [Also in Divisions B5, El and F1] A flexible device has at least one edge which is adapted to be secured to the inner concave surface of a curved supporting structure, said edge comprising a beaded portion having a reinforcement comprising a strut which is adapted to be loaded in compression between abutments provided by the supporting structure. The invention is described with reference to an aircraft jet propulsion engine air intake, the area of which may be increased during take-off. The aircraft is provided with two air intakes 2, one at either side of the fuselage, each intake being approximately half-cylindrical in form, the flexible devices 4 being shown in their extended positions at 50. The intake 2 comprises an inner concave surface 7, an outer convex surface 8 and a leading edge portion 9, a flexible sheet 5 of rubber or rubber-like material being secured thereto. The inner edge 11 of the flexible sheet is beaded and engages in a groove 15 formed in the inner concave surface 7 of the intake. The bead is retained in the groove by means of a strut 28 which extends through the bead, the strut being of hollow tube form. Each end 29 of the strut is received in a hollow space 30 in the head 31 of a screwed bolt 32, the screwed portion of the bolt engaging in a fixed abutment 35 so that rotation of the bolt places the strut 28 in compression and the bead 11 is retained in the groove 15. A locking nut 36 is provided for the bolt. The outer edge 12 of the flexible sheet is likewise beaded and engages in a groove 16 formed in the outer convex surface 8 of the air intake. The bead is retained in the groove by means of a wire 17 which extends through the bead. Each end 18 of the wire is secured to a screwed rod 20 which passes freely through an abutment 21 secured to the fuselage, a nut 23 on the end of the rod engaging the abutment whereby the wire 17 may be placed in tension to retain the bead 12 within the groove 16. The longitudinallyextending edges 19 of the flexible sheet 5 are also beaded and have wires 42 extending through the beads. The forward end of each wire is secured to an eye 44 which is engaged on the end 29 of the strut 28, while the rearward end of each wire is connected by a turnbuckle 46 to an eye-bolt 47 which is engaged on the rod 20 secured to the wire 17, rotation of the turnbuckle placing the wire 42 in tension, thereby retaining the bead 19 in the groove 41. An inflatable bag or sac 10 is disposed between the surfaces 7, 8 of the air intake and the flexible sheet 5, the bag being inflatable by means of compressed air so as to distend the flexible sheet 5 to the position 50 indicated in Fig. I. When not in use a source of vacuum is applied to the flexible sheet whereby the sheet is caused to lie closely adjacent the surfaces 7, 8.
Patent GB-235434-A (GB)
Title: Improvements in tongs for gripping pipes or other round articles
IPC: B25B13/52
Filed: 1924-09-11
Abstract: 235,434. Mancho, A. I., (Ridel, K.). Sept. 11, 1924. Chain and like wrenches.-A pipe &c. gripping tongs comprises a lever D and a number of gripping jaws A, B, C hinged together in a closed series, the lever having a hook E engaging a pin F in the last jaw, while a spring J tends to maintain the locking engagment of the lever and jaw when the pressure on the lever is released. The main jaw A may be lightened by a hollow K.
Patent GB-1013104-A (GB)
Title: Process for the manufacture of pigmented polyolefines
IPC: C08J3/205
Filed: 1962-06-05
Abstract: A process for the manufacture of pigmented polyethylene or polypropylene comprises mixing the polyolefin with a liquid pigment dispersion containing the pigment in finely dispersed form and then removing the liquid by drying, the mixing and drying being such that the polyolefin is maintained in powder form.  The liquid pigment dispersion may be in an aqueous or organic medium and with/without a dispersing agent.  Organic and inorganic pigments are specified, and in the examples a bisphenolic sulphide is present as antioxidant.