baber/WOPTO huggingface dataset:
Patent GB-850980-A (GB)
Title: A process for the production of alkali metal and alkaline earth metal borohydrides
IPC: C01B6/00
Filed: 1958-04-30
Abstract: Alkali or alkaline earth metal borohydrides are prepared by reacting an N-triakyl borazane with an alkali metal or alkaline earth metal acetylide in the presence of hydrogen under pressure. Reaction may be at above 140 DEG C., preferably 200-300 DEG C.  In a modification the N-trialkyl borazane may be produced in situ from a boron trialkyl and a tertiary amine.  In examples:-(1) CaC2 suspended in perhydrocumene, tetrahydrofuran, and N-triethyl borazane are heated in an autoclave under 250 atms. H2 to 230-240 DEG C. until the pressure falls to a constant value; (2) CaC2, boron tri-n-propyl, and triethylamine are heated in an autoclave under 350 atms. H2 at 260 DEG C.; (3) NaC­CH suspended in N-triethyl borazene and perhydrocumene are heated in an autoclave under 200 atms. H2 to 200-230 DEG C.; (4) mono-potassium acetylide suspended in decahydronaphthalene, and N-trimethyl borazane are heated at 170-200 DEG C. under 150 atms. H2 in an autoclave; (5) BaC2, N-trimethyl borazane, and xylene, are heated in an autoclave under 200 atms. H2 to 200-220 DEG C.  Specification 850,606 is referred to.
Patent GB-1344283-A (GB)
Title: Coating composition
IPC: C09D163/10
Filed: 1971-05-07
Abstract: 1344283 Coating composition COMMISSARIAT A L'ENERGIE ATOMIQUE 7 May 1971 [13 May 1970] 13832/71 Heading C3B A coating composition which is hardenable under the action of ionizing radiation consists of or comprises an epoxy resin (I) containing hydroxyl groups which has been modified by an α,#-ethylenically unsaturated acid (II) as a result of reaction of the COOH group with the epoxy groups of the resin and as a result of esterification of the OH groups of the resin. I may be a diglycidyl ether of bisphenol A and II may be methacrylic acid. The composition may be applied as a layer of 10 to 100 Á on a substrate, e.g. phosphated steel, and dried and hardened by irradiation, e.g. a dose of 10,000 to 100,000 electron volts.
Patent GB-419037-A (GB)
Title: Improvements relating to the lubrication of axle housing mountings of railway trucks
IPC: B60B37/04
Filed: 1934-05-08
Abstract: 419,037. Lubricating. SKERRETT, H. N., 24, Temple Row, Birmingham.- (Timken Roller Bearing Co. ; Denber Avenue, Canton, Ohio, U.S.A.) May 8, 1934, No. 13852. [Classes 12 (ii) and 12 (iii).] In a railway truck, the wheels are rigidly secured to an axle 2 running in roller bearings in an axle housing 3. The side frame has vertical pedestals 5 provided with liners 7 ; guide blocks 8 are mounted on the liners 7 so as to move vertically thereon, and have openings 9 to receive horizontal trunnions 10 extending laterally from the axle housing 3 at the ends thereof. Flat rectangular wear pads 11 are welded to the axle housing 3 above and below the trunnions. The axle housing 3 is formed at each end as a lubricant reservoir 12, having a cover plate 13 and filling plug 14. A felt tube 15 extends through openings in the housing 3, upper wear pad 11 and trunnion guide 8, being secured by cross-wires 17 welded to the inner wall of the reservoir ; the tube 15 carries a lubricant wick 16 one end of which dips into the lubricant in the reservoir 12, the other end rubbing on the pedestal liner 7. Lubricant is thus conveyed to the contacting wear faces of the wear pad 11, guide block 8 and pedestal liner 7 ; the wick is squeezed when the housing moves relatively to the guide block 8. The face of the guide block 8 has intercommunicating circular grooves 19 for distributing lubricant over the entire face. The axle housing is provided on each side of the trunnion with grooves 20 containing strips 21 of felt ; these, together with the relieved portion of the housing, form a reservoir 22 into which lubricant drains from between the wear-surfaces above the trunnion, and from which it is fed to the wear surfaces below the trunnion. A felt plug 23 extends through the centre of the trunnion 10 ; lubricant splashed on to the inner end of the plug by the bearings is thus conveyed to the wear face of the pedestal liner 7. A wear ring 25 is shrunk on to the trunnion and has radial openings 26 communicating with a circumferential groove on the inner periphery 27 of the ring 25. Lubricant is forced in by means of a grease gun through holes 28 in the guide block 8 fitted with plugs 29 and communicating with the radial passages 26.
Patent GB-388007-A (GB)
Title: Product for destroying rodents
IPC: A01N43/08
Filed: 1931-05-11
Abstract: Furfurol, or compounds thereof which can be vapourized or which liberate furfurol in the digestive organs, for example the bisulphite compound or furfuramide, are used for destroying rodents.  They can be mixed with such substances as fats, bread, sugar or cheese.
Patent GB-1215761-A (GB)
Title: Improvements in or relating to connectors for printed circuit boards
Inventor: DAVIES BRYAN
IPC: H01R12/55
Filed: 1968-03-22
Abstract: 1,215,761. Electric coupling. INTERNATIONAL COMPUTERS Ltd. 8 Jan., 1969 [22 March, 1968], No. 14006/68. Heading H2E. A connector 13 for providing an electricallyconductive connection through a hole 12 in a printed circuit-board 10 between circular areas 11A of two electrically-conductive elements 11 on opposite faces of the board includes a conductive member having first and second end portions, the intermediate portion having at least two corrugations extending across the width thereof. The connector is L-shaped and when the ends are connected, there is a portion between the two faces which absorbs any expansion or contraction during temperature cycling. In another embodiment the connector (Fig. 3, not shown) instead of being L-shaped, has the width of the first end portion greater than the remainder of the member. Each connector may be formed from a portion cut from a length of corrugated electrically-conducting material.
Patent GB-1090937-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K23/56
Filed: 1966-03-30
Abstract: 1,090,937. Electric motors. RETOBOBINAHANDELSANSTALT. March 30, 1966 [April 1, 1965; Feb. 4, 1966], No. 14011/66. Heading H2A. [Also in Division B3] In a D.C. motor having a cup-shaped selfsupporting armature winding 22, the end loops 42 of the coils of the winding are secured to peripheral teeth 24 of a disc 23 which attaches the winding to the motor spindle 5. The teeth 24 may project into the air gap 15 further than the winding 22 so that the tips of the teeth form a fan for cooling. The teeth may contain single or multilayer windings and the windings may be of parallel or oblique, e.g. as in Specification 903,285, construction (Figs. 4 and 5, not shown). The flat disc 23 shown may be punched from a plate of synthetic insulating material. Alternatively the disc may be produced with inclined teeth (240) (Figs. 9-13, not shown), by moulding or press moulding of synthetic materials, e.g. a thermoplastic material. These inclined teeth may be heated and bent around the ends of the coils as at (241) (Fig. 13, not shown) to secure the winding. The motor has a field magnet 1 and return iron circuit 11 both of which may be replaced by an electrically energized system. Winding process.-The armature is made by winding the coils around the teeth of the disc and pins mounted on a mandrel of a coil winding machine. After the winding has been completed the pins and armature which is now secured to the disc are removed from the mandrel and can be impregnated or painted with an adhesive varnish to bond the various components together. Commutator and brush construction.-The commutator 9 (Fig. 1) is attached to a boss 27 formed on the insulating disc 23 and is contacted by brushes 10 secured to contacts 20. Also the segments 26, 29 (Fig. 2, not shown) can be embedded in the commutator body 28 or can be formed as printed circuits 38 (Fig. 6).
Patent GB-543403-A (GB)
Title: Improvements in or relating to the manufacture of electron discharge devices
IPC: H01J19/28
Filed: 1940-09-10
Abstract: 543,403. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Sept. 10, 1940, No. 14054. Convention date. Dec. 2, 1939. [Class 39 (i)] [Also in Group XXIII] In electron discharge devices, particularly for high frequency operation, the envelope is formed of two pre-cast dish sections 20, 21, Fig. 1, each carrying some of the co-operating electrodes, and sealed together around the central peripheral edge. The abutting surfaces are divided into separate annular parts by a channel 80 formed by registering grooves ; the inner surface is unaffected by, and maintains the sections in correct relation during, the sealing of the outer surface. Notches may connect the channel to the interior of the envelope. In the sealing operation, the sections are mounted in superposed relation on a rotating head and held together by suction applied through the evacuating tabulation 22. Heat is applied to the peripheral abutting edge by two stationary gas burners, which may be connected in circuit with a source of high voltage and radio-frequency to intensify the heating effect. The multiple unit device shown in Fig. 1 comprises two anodes 56 consisting of a triangular block of carbon, with recesses 59 on their inwardly directed sides. A metal heat shield 61 is secured in spaced relation on the outer face of each anode and is secured by welding thereto the upturned ends of rods 64, 65 threaded through the blocks. Pairs of conductors 23, 25 are welded to brackets on the heat shields and are sealed through the envelope section 20. The control grids are disposed in the anode recesses 59 and are formed of flattened wire helices 38, Fig. 3, having the turns maintained in spaced relation by a bar 39 occupying half the depth of the winding. Plates 40, 41, with flanged edges 42, 43, are attached to the sides of the grid and act as heat-radiating fins and as shields to protect the seals of the conductors 28 which are welded to the plates, and pass through the section 21. The cathodes are filaments of thoriated tungsten or metal ribbons coated with alkaline earth oxides and pass through the grid windings. They are supported at one end by resilient arms 47, 48 carried by supporting conductors 30, 31 sealed through the section 21. The other ends are connected to a cross-member carried by a common support 32. The electrodes are mounted in each section, prior to sealing, by means of a jig which spaces them accurately in relation to the plane of sealing of the sections. The jig consists of a flat ring 72, Fig. 9a, with cross-bars 75, 76 with convex surfaces to fit into the anode recesses, and grooved under surfaces in which the grids are placed. The sections 20, 21 of the envelope are in turn clamped to the jig by straps 79 and setscrews, while the corresponding electrodes are secured in place, and are thereafter assembled and sealed together.
Patent GB-572737-A (GB)
Title: Improvements in and relating to rotary pumps
IPC: F04C2/348
Filed: 1941-11-01
Abstract: 572,737. Hydraulic apparatus. PARNALL AIRCRAFT, Ltd., and DRAPER, F. C. Nov. 1, 1941, No. 14099. [Class 69 (ii)] [Also in Group XXVI] Relates to rotary pumps of the kind in which a rotor with radially-sliding vanes rotates in a circular casing eccentric to the rotor, and consists in combining two such pumps 3 with an intermediate member 19 having inlet and outlet passages 25, 26, 27 for both pumps communicating with passages in the rotors 1 leading to the working chambers. The passages 26, 27 may be formed in spigots 28 or 19 which support the rotors and provide bores for the driving shaft 34. The pump chambers may be angularly adjusted to vary the output or reverse the pump. The pumps may be used for supplying fluid to motors 54 for operating turrets on aircraft, delivery from the pump A being by pipe 52 or 53 and intake by pipe 45 or 44, according to the setting of the stator. If the motor is held up, the oil from the delivery pipe can escape through a double relief valve 55 back to the pump 40. In another form, a gun ram is actuated by the delivery fluid of the pump. Specification 572,736, [Group XXVI], is referred to.
Patent GB-567865-A (GB)
Title: Improvements in or relating to reinforced pre-cast concrete columns
IPC: E04B1/21
Filed: 1943-08-31
Abstract: 567,865. Concrete columns. FAIRHURST, W. A. Aug. 31, 1943, No. 14183. [Class 20 (i)] A reinforced pre-cast concrete column comprises at least two sections 10, 11, which are joined end to end by means of a pouredinternal joint, there being cast in the junction end of one section 10 a deep cavity 12 which is filled with cement grout in which are embedded metallic reinforcing members 13 protruding from the other section 11 into the cavity. The abutting portions of the column sections 10, 11 shown are made convex and concave respectively and the upper section 11 has a recess 15 in its lower end forming an extension of cavity 12. The cement grout is introduced through downwardly inclined passages 14 in section 11, such passages terminating in the recess 15. During assembly the junction is encased in a metallic or other clamping device 17.
Patent GB-312315-A (GB)
Title: Improvements in induction regulator installations
IPC: H02M5/12
Filed: 1929-05-07
Abstract: 312,315. Maschinenfabrik Oerlikon. May 24, 1928, [Convention date]. Boosting by static transformers.-In systems for regulating the voltage of a consuming circuit F by means of a transformer D with relatively rotatable windings D<1>, D<2>, the voltage e of the series winding D <2> being equal to half the required range of voltage regulation and an autotransformer A being interposed between the lines E and the transformer D to allow the full range of regulation to be utilized, the transformer A is connected only to the series winding D<2> of the transformer D, and the exciting winding D<1> is connected to the lines E in front of the transformer A, directly or through a voltage-reducing transformer, the energy transference in the transformer A being thus reduced.
Patent GB-644949-A (GB)
Title: Improvements in and relating to metal containers of the barrel type
Inventor: MCCUBBIN JOHN COOK
IPC: B65D25/24
Filed: 1948-05-26
Abstract: 644,949. Casks. METAL CONTAINERS, Ltd. May 26, 1948, No. 14256. [Class 21] A metal cask has attached false ends shaped to provide chimes 8 and rolling rings 9 for engagement with conveyer rails. The ends 7 are secured to the cask and rings 11 are provided between the walls of the cask and ends 7. A girth band 2 provides rolling hoops 3, 4 reinforced by rings 6. A bunghole 5 in the band 2 comprises a tube 14 reinforced by a flanged ring 17. A tapping bush 19 is secured to the walls of the cask and an end 7, and is reinforced by a flanged ring 25.
Patent GB-567354-A (GB)
Title: A combined punching and fixing device for sawblades in saw frames
IPC: B23D51/14
Filed: 1943-09-02
Abstract: 567,354. Saws. BRUNZELL, B. J. Sept. 2, 1943, No. 14325. [Class 61 (ii)] A broken saw blade is repunched at the end and refixed in the frame by a combined punch and holder consisting of three plates 1, 2, 3 fixed together at one end by riveting, spotwelding, &c., and provided with an aperture 4 at that end for connecting it to the saw frame and sprung apart at the other end and apertured to take a combined punch and holder pin 5 of hardened steel. The broken end of the blade is positioned as shown by dotted lines between plates 2 and 3 and a new hole made therein by striking a light blow on the head 6 of the pin 5, the saw blade being then inserted between plates 1 and 2 and secured inthe frame in the usual manner. The hole 8 in the plate 3 widens out to prevent the punched piece from sticking in the hole.
Patent GB-956519-A (GB)
Title: Improvements in or relating to rotary-piston pumps
IPC: F01C1/46
Filed: 1962-04-13
Abstract: 956,519. Rotary pumps. E. HENGSTLER. April 13, 1962 [April 21, 1961], No. 14338/62. Heading F1F. A rotary pump comprises a cylindrical piston 10 mounted through needle bearings 12 on an eccentric 5 integral with a drive shaft 4. The piston 17 mounted in a cylindrical bore 14 to form working spaces 15 and 16 separated by an abutment 11 which has part cylindrical surfaces 18 with a common axis about which the abutment pivots. Pumped fluid passes through a groove 25 in the abutment to an outlet 23, the delivery pressure in the chamber 17, and spring loaded pistons 19, urging the abutment against the piston.
Patent GB-553175-A (GB)
Title: Process for the manufacture of furan
IPC: C07D307/36
Filed: 1941-11-07
Abstract: 553,175. Catalysts. WILSON. C. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 7, 1941. No. 14348. [Class 1 (i)] [Also in Group IV] A nickel-containing solid catalyst for the hydrogenation of furfural to furane may be deposited on pumice &c. or used as wire clippings, or gauze, e.g. as an alloy of nickel and copper, and may be activated by heating to 550‹C. and subjecting to chlorine, subjecting alternately to hydrogen at 350‹C. and to air at 550‹C. until no hydrogen chloride is evolved. In an alternative preparation of catalyst, a nickel-aluminium alloy is granulated and reacted with hydrogen chloride, aluminium chloride sublimed off, and the catalyst oxidized with air at 550‹C. and reduced with hydrogen at 350‹C.
Patent GB-661382-A (GB)
Title: Improvements in or relating to tide models
IPC: E02B1/02
Filed: 1948-05-27
Abstract: 661,382. Electric control systems. ROLFE, J. A. S., and BECKETT, A. H. May 20, 1949. [May 27, 1948] No. 14359. Class 40 (i). [Also in Group XV] In a model for investigating the effect of tides, the water level and rate of flow are independently controlled in accordance with a programme. As shown in Fig. 1, a model of a tidal channel is contained in a tank 1 the level of water in which is controlled by a motordriven valve controlling admission of water from a tank 15 and out-flow to another vessel 17. The rate of flow is controlled by a screw 7 driven by a reversible motor 8. Each motor is controlled by the output of a Wheatstone bridge of which two of the arms are formed by the resistances of liquid between a movable and two fixed electrodes in respective devices for measuring level or flow, the other two arms being formed by the respective resistances of liquid between fixed electrodes 22, Fig. 5, and a movable electrode 24 operated by a moving coil instrument controlled in accordance with the programme. A combined depth and flow meter 10 is shown in Fig. 6. The flow meter comprises a frame with staggered vanes 63 which is deflected by the water flow and moves an electrode 55 between fixed electrodes 54 in a central compartment of the float of the level meter. This float is carried adjustably on a counterweighted beam the position of which determines the position of an electrode 73 between electrodes 72 in another compartment. The programmes are recorded as curves on paper bands such as 40, Fig. 4, each of which co-operate in known manner with an interrupted light beam, a photo-cell 48 energizing an amplifier whose output is series connected to the mirror galvanometer 46, and the moving coil instrument shown in Fig. 5, so that as the band is traversed the light beam follows the curve, and the bridge is unbalanced to energize the appropriate motor, which adjusts the level or flow according to the programme, and rebalances the bridge.
Patent GB-1383158-A (GB)
Title: Tonometers
IPC: A61B3/16
Filed: 1973-03-26
Abstract: 1383158 Tonometers AMERICAN OPTICAL GORP 26 March 1973 14385/73 Addition to 1226709 Heading ASK  In a tonometer of the kind in which a pulse fluid is directed towards a patient's corneal surface, and having a monitoring system for determining the effect of the pulse on the surface, which system includes a source of radiant energy directed on to the corneal surface and reflected therefrom onto a radiation detector, the wavelength of the radiant energy is outside the visible spectrum. As shown, the patient's cornea 20 is viewed by an operator's eye 60 through an eyepiece 36, aiming reticle 34, telescope lens 30 and an objective lens 14. Air pulses are directed to the cornea by means described in Specification 1226709 and represented by a tube 18. For alignment, light from a source 38 passes through a condenser lens 40, a transparent plate 42 and a target 44, is reflected by a beam splitter 46 and a mirror 48 through a collimating lens 50 and a lens in a turret 62, and is reflected along the main axis 26 of the instrument to be focused at a plane 58 for viewing by the operator. Alternatively, the light source 38 may be replaced by light emitting diode 54. Light from a source 22 of non-visible radiation is reflected from a beam-splitter 8 along the axis 26 to the patient's cornea 20, whence it is reflected back to a beam-splitter 32 to a detector 24. Signals from detector 24 may be used as described in Specification 1226709. In an alternative, the light source 22 and the beam-splitter 8 are omitted, and the light source 54 is used for alignment If source 54 is a source of non- visible light, it may be used both for alignment and for illuminating the cornea.
Patent GB-804343-A (GB)
Title: Improvements in or relating to gas discharge lamp apparatus
Inventor: ELPHICK GEORGE STANLEY
IPC: H05B41/22
Filed: 1954-03-23
Abstract: 804,343. Control systems for discharge apparatus. RANK CINTEL, Ltd. March 22, 1955 [March 23, 1954], No. 14386/56. Divided out of 804,342, [Group XL (a)] Class 38 (4). Flash discharge lamp apparatus includes a discharge lamp 13 having main electrodes 4 and 5 between which the main discharge passes in a capillary portion of the lamp envelope, and an auxiliary electrode 10 adjacent the main electrode 5, the arrangement being such that the auxiliary discharge is shielded from the capillary portion of the lamp envelope, means for applying to the main electrodes 4 and 5 voltage pulses of sufficient amplitude to produce a main discharge therebetween and means for maintaining between the main electrode 5 and the auxiliary electrode 10, during periods when the lamp may be required to fire, a small continuous electric discharge. The lamp is constructed as described in Specification 804,342. The small continuous discharge between the electrodes 5 and 10 is produced by the potential between the terminals + and 22 which may be unidirectional or alternating and is preferably applied through a resistor 23. The circuit is preferably arranged so that the potential between electrodes 5 and 10 is greater than that between electrodes 4 and 10 to prevent discharge between the latter electrodes. When lamp 13 is to be flashed ave voltage pulse is applied by way of terminals 19, 20 between grid and cathode of pentode valve 15 so that the valve is cut off to interrupt the flow of current through choke 14 and cause a high-voltage pulse across the choke which is applied to the main electrodes 4 and 5. One end of choke 14 is connected to electrode 4, which is earthed, through capacitor 18 and the other end of the choke is connected to the electrode 5 through a resistor 25 close to the anode of the valve 15 to reduce the generation of high-frequency oscillations. The screen grid of valve 15 is connected to the + ve terminal of the source by a resistor 16 and to the earthed - ve terminal by a capacitor 17. The suppressor grid of the valve is connected to the cathode. To prevent damage in the event of lamp 13 failing to strike or being disconnected, a safety spark gap 21 is connected across choke 14 in series with a resistor 24. Numerical characteristics of a typical circuit are stated.