baber/WOPTO huggingface dataset:
Patent GB-193267-A (GB)
Title: An improved magneto electric machine
IPC: H02K21/18
Filed: 1922-02-10
Abstract: 193,267. Natoli, G. Feb. 10, 1922. Magneto - electric machines. - The winding 6 of a magneto is carried on a stationary laminated horseshoe core 7, the poles 7<1> of which are inserted in lateral grooves in a drum 8 coaxial with the axis of rotation of the permanent magnet 3. The magnet is enclosed by a casing in the form of two drums 8, 12 which can be tightened by means of a screw-threaded sleeve 11. The laminae 7<1> are pressed against the rear shoulders of the grooves by a ring 9 screwed on to the collar 8<1>. Exact centring of the laminae is ensured by the annular projections 10 on the pole-pieces and shoulder 8<11>, which projections register with corresponding grooves on the tightening ring 9 and rear shoulder 8<111>. The casing 8, 12 may be rotated by a handle 16 to adjust the timing.
Patent GB-491768-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/14
Filed: 1938-02-09
Abstract: 491,768. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 9, 1938, No. 4066. Convention date, Feb. 12, 1937. [Class 39 (i)] In a thermionic valve having four or more electrodes between the cathode and the anode members parallel to the cathode are arranged to form the electrons into four or more beams, which beams are kept separate from each other by screens which are arranged in connection with the members forming the beams, or portion of the screens may constitute the members forming the beams. In the arrangement shown the cathode 1 is surrounded by a screening grid 2 and the beams are formed by four rods 3. Close to the rods 3 are arranged screens 5, two of the beams entering the screens and two passing out between them to the control grid 8, screen grid 9 and anode 10 of an amplifier system. Inside the screens 5 are electrodes 6 formed of rods or plates to act with the electrode 2 as the oscillator electrodes of a mixing tube ; the mutual conductance of the oscillator may be increased by coating the interior of the screens 5 with a substance that emits secondary electrons. To prevent electrons returned from the electrode 8 from entering the space within the screens 5 such electrons may be deflected by conductors arranged near the electrode 8, or by shaping the electrode. The rods 3 may be replaced by plates or by the edges of the screens 5.
Patent GB-1423733-A (GB)
Title: Internal combustion engines
IPC: F02D41/02
Filed: 1973-01-26
Abstract: 1423733 Purifying I.C. engine exhaust gas ROBERT BOSCH GmbH 26 Jan 1973 [29 Jan 1972] 4068/73 Heading B1W [Also in Division G3] An exhaust gas purification system for an i.c. engine comprises a reactor adapted at a predetermined temperature to decompose at least one injurious constituent, e.g. a nitrogen oxide, of the engine exhaust gases; a regulating device for regulating the mass ratio (#) of air to fuel, when the reactor is at its operating temperature, to a value substantially equal to unity (an example of a suitable regulating device is shown in specification 1197865 Division Gl); means for reducing the cold-start fuel enrichment with respect to time for a predetermined interval 17, e.g. 20-30 seconds, after starting the engine; means for reducing the cold starting fuel enrichment with respect to engine temperature for a further predetermined interval 18 after starting of the engine, and a switching device responsive to engine temperature for switching on the #- regulating device when the reactor has reached its operating temperature.
Patent GB-964521-A (GB)
Title: Apparatus for forming metal articles
IPC: B21K1/44
Filed: 1961-02-03
Abstract: 964,521. Extruding; forging. TEXTRON Inc. Feb. 3, 1961 [Feb. 9, 1960], No. 4120/61. Headings B3H and B3P. A heading machine or the like has a die bed 10 having mounted thereon a pair of dies 27, 28, each containing an ejector 31, the two ejectors being actuated concurrently by common means 48, 50 operating independently of and in timed relationship with the reciprocating gate 15. The machine has a cylindrical gate 15, Fig. 2, reciprocated by a crank-shaft 11 and carrying a pair of punches 20 co-operating respectively with an extruding die 27 and a heading die 28, Fig. 3. Wire stock is fed through a shearing die orifice 30, Fig. 8, against a stop 135 which is adjustable through gearing 142 by a spindle 145. The stop is held in a forward operative position by a pin 140 cooperating with a vertical rotary shaft 148 driven through linkage 151 by a cam 155, Fig. 7 (not shown). The shaft has a recess 149 which permits retraction of the stop to allow movement of the cut-off mechanism during the cycle of operation of the machine. The cutoff mechanism, Fig. 3, comprises an upper guide member 75 and a lower cut-off member 100. The upper member is guided in a vertical sleeve 73 and actuated through a pair of links 79, 81 having relative movement against a spring 86, by a cam 89. Lower member 100 is pivoted at 102 to a lever 103 and has a compound movement a, b, c, produced by linkage from cams 109, 116, 126, 131 on shaft 90. The cams produce a positive movement in both directions and a frangible plate 111 fractures upon excessive load. The two members 75, 100 first close together to grip the stock and then move upwardly to cut-off a workpiece W which is gripped by transfer fingers 105 on member 100 and transferred to die 27. The shank of the workpiece is there extruded and finally the workpiece is transferred to the heading die 28. Both dies have ejector rods such as 31, Fig. 2, actuated through adjustable linkage 33, 35, 36, 38 by one or preferably two cam surfaces 47 on a common rocking member 48 driven by a connecting rod 50 from an auxiliary crank-shaft 53 geared to the main crank-shaft 11. Linkage 36 includes a frangible plate 39. Specifications 964,523 and 964,524 are referred to.
Patent GB-839592-A (GB)
Title: A new or improved flow indicator for lubricant circuits and other fluid systems
IPC: G01P13/00
Filed: 1958-02-08
Abstract: 839,592. Rotary flow indicators. RADFORD, K. Feb. 6, 1959 [Feb. 8, 1958], No. 4168/58. Class 110 (2). A fluid-flow indicator, for insertion in a pipe, comprises a cylindrical transparent, or semi-transparent body 1, having a through aperture 2 in which is mounted a spinner 7 mounted in bearings 6 of end discs 4. The periphery of the spinner is marked so that movement of it may be observed when fluid flows through the pipe. Vanes 9, or through holes may be provided on the spinner which may have a spring at one end to exert end pressure. One end 1b of the body 1 may be domed to provide a magnification effect. The body 1 is held in place by a clamping ring 12 pressing on a sealing ring 11. Two or more indicators may be mounted in a pipe, with spinners at different levels.
Patent GB-639089-A (GB)
Title: Improvements in smoothing, burnishing or polishing devices
IPC: B24B23/06
Filed: 1948-02-13
Abstract: 639,089. Portable band polishing machine. CELLACTITE & BRITISH URALITE, Ltd., and KINGSBURY, H. W. Feb. 13, 1948, No. 4280. [Class 60] A polishing &c. device comprises a casing 1 adapted to be held in the hand, an abrasive band 20 mounted on pulleys 10, 19 and driven by a compressed air motor 8 which is mounted on the casing 1 and is positioned within the pulley 10, and a movable member 16 carrying the pulley 19 and loaded by a spring 21 to maintain the band in tension. One side 4 of the casing is pivoted to permit removal of the band and the other side carries a pivoted finger control 25 for the valve. 13 of the motor 8.
Patent GB-374395-A (GB)
Title: Connection system for screen-grid valves
IPC: H03F3/02
Filed: 1931-05-21
Abstract: 374,395. Valve amplifying and detecting circuits. RADIO AKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and KAPTEYN, P., 5, Schwalbacherstrasse, Friedenau, both in Berlin. May 21, 1931, No. 4393/32. Convention date, May 21, 1930. Divided on 370,707. [Class 40 (v).] A pentode valve used as a detector or amplifier has a high resistance 5 preferably more than a megohm in its anode circuit for coupling it to an output valve. Screen-grid voltage is preferably obtained from the anode supply source 8 through a high resistance 6, and a condenser 7 connects the screen grid 3 to the cathode. The interception grid 9 is directly connected to the cathode.
Patent GB-826558-A (GB)
Title: Production of stable dimethylamine-borine
Inventor: SCHECHTER WILLIAM H
IPC: F02B3/06
Filed: 1956-02-13
Abstract: Dimethylamine-borine, stable at room temperature, having the formula (CH3)2NH:BH3, is useful as an additive to liquid hydrocarbon fuels to minimize the catalytic effect of metallic or carbonaceous deposits in internal combustion engines and thereby prevents an increase in the octane rating of gasoline or the cetane rating of diesel engine fuels.  (For preparation see Group IV (b)).ALSO:The invention comprises a dimethylamineborine which is stable at room temperature and has the formula (CH3)2NH : BH3.  The compound has a melting-point of 36 DEG  C., is stable to heat at 110 DEG  C. and at the boiling-point of neutral and alkaline aqueous solutions, and is of non-ionic character.  The stable dimethylamine-borine may be prepared by electrolysis of a solution of an ionic borohydride in dimethylamine using direct current and an inert anode (e.g. platinum) and cathode (e.g. mercury).  Sodium borohydride is preferred but other alkali or alkaline earth borohydrides may be used.  The product may be recovered by evaporating off the dimethylamine.  The stable dimethylamine-borine may also be obtained by reacting diborane with dimethylamine at 7 DEG  C., allowing the reaction vessel to warm up naturally from the heat of reaction, the product being separated by crystallization from the reaction mixture.  The novel compound may also be obtained by heating together a metallic borohydride, such as sodium borohydride, and a dimethylammonium salt, such as dimethylammonium dihydrogen phosphate, and recovering the product by sublimation.  The unstable dimethylamine-borine (obtained by reaction of diborane with dimethylamine at - 45 DEG  C.) can be converted into the stable dimethylamine borine by vacuum distillation at 60 DEG  C. and 2 mm. pressure, or by recrystallization from a solvent such as boiling petroleum ether.  The stable dimethylamine-borine is useful as an intermediate for other boron-nitrogen compounds and as an additive to liquid hydrocarbon fuels.  Specification 826,557 is referred to.
Patent GB-1381265-A (GB)
Title: Electric storage batteries
IPC: H01M50/171
Filed: 1971-02-11
Abstract: 1381265 Moulding battery cases CROMPTON PARKINSON Ltd 4 Feb 1972 [11 Feb 1971] 4473/71 Heading B5A [Also in Division H1] A leakproof joint in an electric storage cell or battery having metal connectors passing through its thermoplastics walls is made by injecting a thermoplastics sealing compound at a temperature above the melting point of the wall material into a space adjacent an edge portion of a wall to cause melting of the wall and fusion of the sealing material therewith. In Figs. 1 and 2 an intercell connector 1 which is precast with plate straps 2, 3 to which the cell plates are attached and may carry take-off terminals (not shown), is positioned so that the connector 1 fits into slot 5 in a cell dividing wall 6. A mould 12 is fitted around the connector 1 and sealing material 14 injected to surround the connector up to the level of the top of wall 6 and to fuse with the thin wall portion 7 which maybe V-sectioned, as shown, or be a rectangular tongue. A complete assembly of plates, connectors and terminals may thus be welded together before fitting into a battery case. In Fig. 4 battery terminals 20 are positioned with flange 22 abutting the underside of a battery cover 23 and, with the aid of a mould (not shown), sealing material 26 is injected to fill the recess 25 in the terminal 20 and to fuse with the thin projection 28 of the cover 23. In Fig. 7 a battery case 33, intercell walls 32 and cover 30 are joined by injection of sealing material through holes 41 into spaces between these members. Each member has a V-sectioned projection 35 or 36 with which the sealing material is fused and one of each pair of members has projections 38 entering on either side of the 35 and 36 to define an injection space. The cover 30 is correctly located by a flange 39 running round the case 33. The walls and sealing material may be polystyrene, ABS, polythene or polypropylene and the sealing material may have metal or metal oxide filler to increase its thermal conductivity.
Patent GB-1454132-A (GB)
Title: Earth dredger
IPC: E02F9/06
Filed: 1974-01-31
Abstract: 1454132 Dredgers GOYO-BALLAST KK 31 Jan 1974 [2 Feb 1973] 04494/74 Heading E1F In a waterborne dredger 1 the cable portions 80 of the or each suction duct hoist cable 10 passing between upper reversing pulleys 14 mounted on the hull of the dredger and lower reversing pulleys 13 connected to the suction-head 5, 6 of the duct 3 are acted upon between the pulleys 13, 14 by a cablelength varying device 16 and guide pulleys 12, 13 mounted on the hull to cause compensation in the duct hoist system for the wave motions of the hull. The two ends of the or each cable 10 are wound on to a hull-mounted winch associated with the or each cable. The device 16 involves an air-hydraulic piston cylinder system. A jetting head 7, 8 may be associated with the suction head 5, 6.
Patent GB-426582-A (GB)
Title: Improvements in and relating to devices for feeding poultry, game, and other birds
IPC: A01K39/012
Filed: 1934-02-10
Abstract: 426,582. Feeding - appliances for poultry &c. ALLAN, A. B., Auchinleck, Newton Stewart, Wigtownshire. Feb. 10, 1934, No. 4499. [Class 5 (ii)] Food flows from a hopper q through a depending pipe o fitted with an adjustable sleeve p into a receptacle a adapted to slide in guides in a frame b. The receptacle is forced forwardly so as to expose the food therein when a fowl stands on a platform f carried by a bell-crank lever g connected by a link h with a lever i adapted to push the receptacle through a link k. A spring l or equivalent retracts the receptacle when the fowl leaves the platform.
Patent GB-308423-A (GB)
Title: Improvements in or relating to apparatus for distributing tar and like substances onroads and other surfaces
IPC: E01C19/16
Filed: 1928-02-13
Abstract: 308,423. Johnson, A. F. Feb. 13, 1928. Surface treatment with liquid materials.- Apparatus for spreading tar on roads comprises a broom formed of several sections a, b, c pivotally attached to one another at o in approximate alignment, and hinged side sections d, e, the free ends of which are connected by an adjustable rod w supporting a canvas strip x which serves to confine the flow of tar. The broom is drawn behind a lorry or tar distributor by chains y and is guided by handles h attached to the brush section a. The pressure on the. handles is transferred to the other sections of the brush by spring-supported stays n, m, s. Adjustable stays g serve to hold the side sections in several angular positions.
Patent GB-287081-A (GB)
Title: Improvements relating to mechanical shovels
IPC: E02F3/28
Filed: 1928-02-13
Abstract: 287,081. Chabrerie, A. P. A. March 14, 1927, [Convention date]. Scoop-arm machines.-A power shovel has a frame 2, pivoting on a shaft 12 carried by the rotatable platform, and a member 1 sliding thereon and carrying the bucket 21, rollers 13, 16, carried by the parts 1, 2, respectively, reducing friction. A rope 3 passes from a winch 19 over pulleys 10, 9, on the frame 2 to a part 14 on the member 1, and a, rope 4 passes from a winch 20 over pulleys 6, 7 on the rotatable platform and over a pulley 8 on the frame 2 to a second part 14; the member 1 may be moved longitudinally by hauling in one rope and paying out the other, while by hauling in the rope 3 and applying a brake to the winch 20, the frame 2 may be rocked. A brake drum 11 is provided whereby the frame 2 may be held in any desired position. A single motor, preferably an internal combustion engine, may drive all the parts. The Specification as open to inspection under Sect. 91 (3) (a) describes the similarly operating machine shown in Fig. 1 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1280972-A (GB)
Title: Improvements in or relating to signal storage devices
Inventor: COOK KENNETH GEORGE
IPC: H01J17/49
Filed: 1970-01-30
Abstract: 1280972 Cathode-ray storage tubes M-O VALVE CO Ltd 13 Jan 1971 [30 Jan 1970] 4617/70 Heading H1D [Also in Division G4] A storage screen for a cathode-ray tube comprises an array of gas discharge cells 10, Fig. 3, formed by the apertures in a glass plate 7 and a metal plate 6 which are sandwiched between glass plates 5 and 8. The cells may contain neon at a pressure of 200 Torr and emit visible light, and a conductor 9 sealed through the plate 8 forms an individual electrode for each cell. In Fig. 3 a circular resistor area 18 is centred on each conductor 9 and an aluminium layer 19 overlap each area 18 and fills the interstices between the resistor areas. In operation the layer 19 is maintained at a negative potential, relative to the earthed electrode 6, that is above the striking voltage but below the running voltage for the cells; a high velocity electron beam is adapted to impinge on selected areas of the screen thereby reducing their potential sufficiently to allow the associated cells to strike. The stored image can be erased by earthing the layer 19. In a modification, Fig. 5 (not shown), a layer of bombardment-inducedconductivity material overlies the areas 18 and 19 of Fig. 3 and is in turn coated with a conductive layer. In another arrangement, Fig. 2 (not shown), the layers 18 and 19 are omitted and the potential at the surface of the plate 8 is stabilized by means of a flooding electron beam. In a further arrangement, Fig. 4 (not shown) an apertured glass plate has its apertures aligned with conductive discs connected to the ends of the conductors 9; the sides of the apertures are resistive and the exposed face of the glass plate has a conductive coating. In a modification of the arrangement the plate is itself resistive, so the resistive coatings are not required.
Patent GB-118993-A (GB)
Title: An Improved Process and Apparatus for Treating Peat.
Inventor: BOUILLON CHARLES
IPC: C10F7/00
Filed: 1918-03-15
Abstract: 118,993. Bouillon, C. March 15, 1918. Peat, preparing.-Vegetable fibres are separated from peat and graded, and the peat is freed from foreign matters and brought to a pure and dry state by a continuous process. The peat, as it comes from the bog, is fed through a hopper a into an apparatus such as b by which it is rolled, moulded, torn, or crumbled. and then it is carried by a draining conveyer c to a tank d; the conveyer is preferably given a shaking motion. In the tank d is a solution of a salt capable of coagulating blood, e.g. calcium chloride or perchloride of iron, and the peat is treated with this during its passage through the tank by the action of a rotary conveyer c. The peat and solution pass, by the aid of a jet of compressed air, along a pipe h into a rotary sieve which is a wire-gauze cylinder i secured to hoops j supported by rollers above a trough l. The sieve retains the fibres which are discharged into a launder n, the discharge being assisted by jets of water from pipes m. Two or more sieves may be used in succession to effect a grading of the fibres. Earth, sand, and other foreign matters are removed from the peat by running the solution and peat through a settling tank which may have an agitating pump and partitions dividing the tank into compartments, which can be separately emptied. The peat is air dried, washed to remove the chloride, and dried in a drying room.
Patent GB-179651-A (GB)
Title: Improvements in piston-rings
IPC: F16J9/14
Filed: 1921-02-09
Abstract: 179,651. Ingram, J. A. Feb. 9, 1921. Piston packing; piston - packing substitutes.-A compound packing-ring of the type comprising a split ring 12 recessed to receive a split ring 11 with a tongue 19 covering the split in the flange 16 of the ring 12, is modified by the formation of a flange 23 on the inner periphery of the ring 11, which enters a gap cut in the flange 18 of the ring 12. An oilcollecting and sealing groove may be formed in the ring 11, and the edge of the flange 16 may be chamfered to form an oil-groove.
Patent GB-913612-A (GB)
Title: Improvements in or relating to electric sliding-contact switches
IPC: H01H1/46
Filed: 1960-02-10
Abstract: 913,612. Regulating switches; switch contacts. ELECTRO-COMMUTATION, ELCOM. Feb. 10, 1960 [Feb. 13, 1959], No. 4697/60. Class 38 (5). A sliding contact 4 co-operates with fixed contacts 1 and is driven by an actuating member 10 via pins 8 which extend through recesses 6 in overhanging parts of the contact 4. The recesses have sloping faces which meet the base of the contact at corners 7 so that the pins 8 apply the actuating force in the contact plane itself. Four pins 8 may be arranged at the corners of the contact (Figs. 4 to 6, not shown), or a single pin may engage a central hole in the contact (Figs. 7, 8, not shown). The contact is biased towards the fixed contacts by a blade spring or a coil spring and is free to move to a limited extent relatively to the pins.
Patent GB-764664-A (GB)
Title: Process for the production of pentaerythritol trichlorohydrin
IPC: C07C31/24
Filed: 1955-02-16
Abstract: Pentaerythritol trichlorohydrin is prepared by reacting one mol. of pentaerythritol with at least 3 mols of hydrogen chloride at a temperature of 150 DEG  to 200 DEG  C., in the presence of at least 0.1 mol. of an aliphatic monocarboxylic acid containing 1 to 4 carbon atoms or an ester thereof.  The reaction may be carried out in an inert organic solvent such as benzene, toluene, xylene or hexane. The acids and ester used are acetic and formic acid and ethyl acetate.  More than 1 mol. of carboxylic acid or ester may be used, in which case the mono-ester of pentaerythritol trichlorohydrin is formed, e.g. the monoacetate, which is then saponified with sodium hydroxide to form pentaerythritol trichlorhydrin.  Five examples of preparations are given.
Patent GB-578233-A (GB)
Title: Improvements in or relating to the production of gas expanded ebonite
IPC: C08L21/00
Filed: 1944-03-14
Abstract: In the production of ebonite expanded by hydrogen sulphide formed during vulcanization from sulphur in excess of 32 per cent, uniform heating throughout the mass is attained by the use of an ultra accelerator, and the heat for the final vulcanization is applied in stages to control the reaction.  Natural or synthetic rubber is compounded with an accelerator such as zinc dibutyl dithiocarbamate and 50 per cent of sulphur, and is vulcanized to the soft rubber stage.  This is cut into blanks, put into moulds with allowance for expansion, and vulcanized in stages, for example for one hour at 60 lbs. steam pressure, followed by one hour at 100 lbs., and allowed to cool.  Several blanks may be united during the final vulcanization; the shape of the blanks should be such as to ensure uniform filling of the mould on expansion.  Heating throughout the mass may be expedited by the addition of heat conducting materials such as powdered metals to the mix, or by high frequency methods of heating. Non-inflammable boards may be produced by including ingredients such as borax, chlorinated wax, ammonium salts or urea.