baber/WOPTO huggingface dataset:
Patent GB-556023-A (GB)
Title: Method and apparatus for forming abrasive articles
IPC: B24D18/00
Filed: 1942-04-21
Abstract: 556,023. Powder metallurgy. CARBORUNDUM CO. April 21, 1942, No. 5365. Convention date, Nov. 24, 1941. [Class 82 (i)] [Also in Groups V and XXII] A mixture of metal powder and abrasive grit is compressed into the required shape, the compressed article is heated in a molten salt bath to sinter the metal, and the sintered article is then cooled. During the heating and cooling the article is restrained against growth and distortion, as by means of a rigid surrounding casing of good heat conductivity, which may compress the article and may maintain the article wholly out of contact with the salt bath. In Fig. 1, the article 6 is shown surrounded by a casing comprising an edge-embracing member 7 (which may be part of the mould in which the article was compressed) and two plates 8 clamped to the article (wheel) by a bolt 9 passing through a hole in the article. To prevent adherence of the article to the plates after sintering, the inner faces of the plates may be coated with graphite. The members 7, 8 may be made of iron, steel, graphite or carbon. The article, in its casing, is hung in a molten salt bath 5 heated by a furnace 20 having embedded electrical resistances 3,. and may be agitated to stir the bath. The salt used for the bath may be (a) a mixture of sodium chloride and calcium chloride, (b) borax, (c) sodium cyanide or (d) sodium aluminium fluoride. After, say, 1 to 10 minutes the casing is taken out of the bath, allowed to cool for a while and quenched; or it may be quenched straight from the bath or.allowed to cool wholly in air. The casing is then taken off the article. The invention may be applied to the making of (a) a wheel having a core 12, Fig. 2, of powdered metal and a rim of abrasive plus metal. The casing may be sealed, as by means of soft copper wire 14 or tongue and-groove means to prevent access of salt to the article. The casing may accommodate two faced wheels separated by graphite or by a plate or by both. The rim 13 of a wheel may be moulded and sintered alone and then sweated on to a core; the core may have the same coefficient of expansion as the rim. (See below.) The co-efficient, of expansion of the member 7 may be lese than that of the core, whereby the rim and core are, on heating, pressed strongly together. The abrasive composition may comprise (1) 75-95 per cent. copper, 5-25 per cent. tin and 3 per cent. (of the total mix) 100 grit diamonds (all by weight) or the diamonds may constitute 5 to 50 per cent. by volume of the total, fully compressed mixture (2) 80-85 per cent. copper 5-10 per cent. iron, 10 per cent. tin. 3 per cent. (of total mix) 100 grit diamonds (by weight) (3) 80-90 per cent. copper, 7-10 per cent. lead, 1¢ per cent. tin, diamonds as in (1) and (2). A composition as in example (1) above, comprising 90 per cent. copper and 10 per cent. tin, may have 15 per cent. by weight of silica or silicon carbide as a filler to make a core having the same coefficient of expansion as the rim.
Patent GB-839648-A (GB)
Title: Improvements in or relating to rotary exhausters and compressors
Inventor: SHORROCK CHRISTOPHER
IPC: F04C18/344
Filed: 1957-02-18
Abstract: 839,648. Rotary vacuum pumps. SHORROCK SUPERCHARGERS Ltd. Feb. 10, 1958 [Feb. 18, 1957], No. 5366/57. Class 110 (2). In a rotary vacuum pump of the outwardly sliding radial vane type the vanes 9 are loaded by means of a metal ring 29 which has a covering 30 of synthetic rubber and is fixed to or rotatably mounted on the flange 27 of a thrust plate 24. The thrust plates are formed with labyrinth grooves 28 and bear against a compressible disc 25. The composite ring 29, 30 may be provided with an outer metallic covering.
Patent GB-988714-A (GB)
Title: Improvements in or relating to sound attenuating gas conduit
IPC: F01N1/02
Filed: 1962-02-12
Abstract: 988,714. Exhaust silencers. ARVIN INDUSTRIES Inc. Feb. 12, 1962 [Aug. 21, 1961], No. 5371/62. Heading F1B. A silencer for an exhaust or other gasconveying pipe 10, Fig. 1, comprises one or more resonater chambers 20, Fig. 2, formed by closed-ended compartments of a pipe 16, connected to the pipe 10 by resonator throats 17. The compartments 20 are formed between plates 18 and the resonator throats are formed by plates 21 with end plates 22 secured along their edges to the pipes 10, 16, each throat having openings 24, 25, leading to the pipe 10 and chamber 20 respectively. In a modification the throats are formed by compartments of a tube 31, Fig. 5, connected to both pipes 27, 28, or by separate throat tubes 50, Fig. 11, connecting the pipes to the resonator chambers.
Patent GB-989852-A (GB)
Title: Improvements in or relating to the molding of hollow plastic products
Inventor: MILLER JOHN HARDIN
IPC: B29C41/18
Filed: 1962-02-13
Abstract: 989,852. Moulding hollow articles. MOLDA-RAMA Inc. Feb. 13, 1962, No. 5436/62. Heading B5A. An apparatus for moulding hollow plastic products comprises a pair of complementary mould sections, a valve assembly for controlling the flow of molten plastic and compressed air to the mould sections, the valve assembly comprising a valve casing having a bore and a valve member movable in the bore between a first and a second position, the casing providing a flow passage extending from the bore towards the mould sections, the valve member having a passage aligned with the flow passage of the casing for delivering compressed air to the mould sections only when the valve is in the second position, the casing also providing an inlet opening for the flow of molten plastic into the bore and through the casing passage to the mould sections, the inlet opening communicating with the casing passage only when the valve is in the first position, and means for sequentially moving the valve member between the first and second positions. A series of solenoid valves, 52, 53, 88, 92, 99 in a pneumatic system are operated sequentially by a timer 102. Firstly the valves 52, 53 are opened to operate pistons in cylinders 31, 32 to close the mould halves 25, 26 movably supported on a platform 12 above a tank 13. Valve 88 then operates piston cylinder 84 to move the valve member 17 so that inlet 63 to the mould cavity is in direct communication with the opening 75 from the pump 18, until . the required quantity of plastic material has passed through the cavity. Valve member 17 then operates through valve 88 to cut off the supply of plastic, valve 92 opening to allow air to pass down the piston shaft 78 into mould cavity 62 through the piston head 72. After closing valve 92, valves 52, 53 then operate piston cylinders 31, 32 which retract the mould halves 25, 26, the moulded article being pushed off the table by a pusher plate 101 activated by a piston and cylinder through valve 99. Specification 989,853 is referred to.
Patent GB-636711-A (GB)
Title: Improvements in aircraft nose-wheel or tail-wheel mountings
IPC: B64C25/50
Filed: 1948-02-24
Abstract: 636,711. Fluid-pressure servomotor-control systems. DOWTY, G. H. Feb. 24, 1948, No. 5507. [Class 135] [Also in Groups XXXII and XXXIII] An aircraft landing wheel is rotatable through a limited angular range for steering purposes by a double-acting hydraulic jack, and is also capable of castoring movement through 360 degrees, under which condition the jack functions as a dashpot to damp shimmy oscillations. In the arrangement shown, the top of the rotatable wheel column 15 is connected by a crank 25 and link 37 to a lug 35 on a hydraulic cylinder 34 movable relatively to a piston 28 formed in the middle of a hollow sleeve 27 through which the pressure liquid is supplied. A control valve 77 is operated by the pilot through members 73 74, and is connected to the cylinder 34 through a follow-up lever system 75, 39. Liquid from the hydraulic system is controlled by inlet and exhaust valves 63, 64 whose operation is governed by an electromagnetically controlled valve 49. To effect steering, the pilot opens the valve 49 by a switch 50, to open the valves 63, 64 and admit pressure liquid through a pipe 66 to close a byepass valve 60 and put the pipes 67, 69 in communication with supply and exhaust respectively. Upon moving the member 73, the follow-up arm 39 rotates about a pivot 38, displacing the valve 77 to admit pressure liquid to the interior of the sleeve 27, from which it passes through a passage 29 or 30 in the piston 28 to the annular space between the sleeve and cylinder 34. Movement of the cylinder causes displacement of the pivot 38 which, through the follow-up system moves the valve 77 to the neutral position. If the column 15 rotates beyond the effective steering range a switch 52 controlled by a cam on the column is opened to close the valve 49 and thus render the hydraulic system inoperative. In this condition the byepass valve 60 is opened by its spring, and the column 15 is free to castor under the influence of a centring spring 43 beneath the cylinder 34, shimmy being damped by the flow of liquid through the passages 29, 30 in the piston 28. When the machine becomes airborne, the switch 50 breaks the circuit of the valve 49, so that the hydraulic system is ineffective so far as steering is concerned.
Patent GB-471065-A (GB)
Title: Improvements in wireless receiving apparatus
IPC: H03D7/18
Filed: 1936-02-24
Abstract: 471,065. Wireless receiving-apparatus. ROBINSON, J. Feb. 24, 1936, No. 5540. [Class 40 (v)] In a superheterodyne receiver means are provided to produce different phase changes for wanted and second channel signals and a reactive coupling is provided such as to assist the wanted and oppose the second channel signals. Fig. 1 shows a frequency changer 12 having an input circuit 10 tuned to the frequency of the local oscillator 11 to produce the necessary relative phase change for the wanted and second channel signals. This circuit is preferably such as to give a response for wanted and second channel signals of onequarter the response at resonance. Beat frequency energy is combined with energy from the local oscillator 11 and is applied through a phase adjusting device 16 to the input. In a modification the tuned circuit of the local oscillator produces the required change in phase between the two signals, Fig. 3. A one-way device 20 is provided in the input and a filter 22 to isolate the oscillator frequency for combination with heat frequency energy. In a further modification the reaction is effected entirely in the pre-detection stage of the receiver.
Patent GB-325391-A (GB)
Title: Improvements relating to safety razors
IPC: B26B21/44
Filed: 1929-02-20
Abstract: 325,391. Vallon, C. N., and Yates, W. Feb. 20, 1929. Razors, safety.-An attachment for a safety razor comprises cranked arms 11, 11<a> pivoted at 16<a>, 17 to a cross member 14 mounted on a spring clip 15. The arms carry a holder 12 containing sponge or thelike 13 which may be squeezed dry by means of a sliding plate 22<a> mounted in the holder and guided by means of tongues therein. The arms may be clamped by a set screw 17 so that the sponge wipes the skin immediately after the shaving operation.
Patent GB-178996-A (GB)
Title: Improvements relating to oil lamps fitted with spray burners
IPC: F23D11/10
Filed: 1921-02-18
Abstract: 178,996. Gardner, J. Feb. 18, 1921. Pilot jets.-A combustible mixture of atomized oil and air issuing from a tube a carried by a bracket g is ignited by the flame from a wick in an oil receptacle m.
Patent GB-1513361-A (GB)
Title: Reference electrode for use at high temperatures and pressures
IPC: G01N27/30
Filed: 1977-02-11
Abstract: 1513361 Reference electrode INCO EUROPE Ltd 11 Feb 1977 [20 Feb 1976] 05654/77 Heading G1N A reference electrode for use in aqueous environments at high temperatures and pressures comprises a housing 11 of heat expandable plastics material (e.g. PTFE), a silver wire 16, 18 partly coated by a silver chloride head 17, a soluble chloride electrolyte solution 19, at least one liquid junction comprising a bundle of fibre 15 tightly compressed by a heat-shrunk plastics tube 14 and a vent in the housing wall which seals at temperatures above 300‹C. The liquid junction may comprise asbestos cord and the electrode may be used for determining corrosion potentials in pressurized systems.
Patent GB-328237-A (GB)
Title: Improvements in or relating to talking machines, and loud speakers
IPC: H04R1/20
Filed: 1929-01-22
Abstract: 328,237. Jeffery, W. G., and Jeffery, W. J. Jan. 22, 1929. Divided on 327,776. Loud-speakers.-A device, stated to increase the volume of sound from a diaphragm A, consists of a channel-shaped member B secured to the diaphragm and a bar C secured to the stylus-bar of a gramophone or actuating member F of a loudspeaker. The bar C is held by springs D', D<2>, against the ends of the legs of the channelled member B, the tension of the springs being. adjusted by screws E<1>, E<2>.
Patent GB-1532493-A (GB)
Title: Voice sounds transmitting and receiving apparatus
IPC: H04M1/62
Filed: 1976-02-13
Abstract: 1532493 Two way transmission using earpieces H ONO 13 Feb 1976 [17 Feb 1975 11 Oct 1975] 05693/76 Heading H4J A piezo electric transmitting and receiving apparatus is in the form of an earpiece and is adapted to function in both transmission directions by bone conduction, it being adapted to contact bones within the ear of a user. In one embodiment shown the earpiece is adapted to fit into the external auditory canal, incorporates a cantilever type piezo electric element and is vented at 36 and 35 to prevent low frequency sounds being emphasized by sealing of the canal. A cavity 37 or a sound absorbing plug reduce external sounds entering the vent. Other embodiments with a plurality of orthogonally orientated transducers, differently mounted transducers and/or a sealed earpiece are disclosed.
Patent GB-975187-A (GB)
Title: Conveyor installation with endless conveyor
IPC: B65G47/48
Filed: 1961-02-17
Abstract: 975,187. Endless conveyers for delivering at desired positions. DURKOPPWERKE A.G. Feb. 17, 1961, No. 5861/61. Drawings to Specification. Heading B8A. In a conveyer installation comprising load carriers continuously travelling in an endless path and each provided with a selector for the selection of stations which are to receive the load from the load carrier, as described in Specification 890,873, there is provided at one point in the path of the carriers a control position having a contact device for reading the station characterizing number stored in the selector of each loaded carrier and having a series of step-by-step counting mechanisms, one for each station characterizing number, whereby as each number is read at the control position the corresponding counting mechanism is stepped on. The counting mechanisms are brought back to their zero positions after each complete traverse of the conveyer. On the basis of the counting result at the end of a cycle, the person supervising the installation can, by means of keying-over of the selectors, lead any excess containers on the carriers to other stations capable of receiving them or, by means of an ejection device as described in Specification 914,044, eject the excess containers at an ejection station.
Patent GB-450656-A (GB)
Title: Improvements in or relating to tilting doors
IPC: E05D15/58
Filed: 1936-02-27
Abstract: 450,656. Sliding doors. SOC. ANON. CLARTE, 27, Terrassiere, Geneva, Switzerland. Feb. 27, 1936, No. 5873. Convention date, May 17, 1935. [Class 20 (iii)] A tilting door for a shed having a wide opening is braced by an exterior girder 5 so placed that wher the door is opened and lying horizon tally above the open ing, the door beam lies in the angle be tween the girder anc the door panel. The girder may be o simple or box, or lattice construction and the section may be varied to suit the load at each position. The door comprises panel frames having wood or sheet-iron coverings, the centre of gravity being above the panel, e.g. at the point 6. The door may be operated by pulley and cable mounted on posts or on the shed.
Patent GB-998264-A (GB)
Title: Herbicidal compositions
Inventor: MIDDLETON MICHAEL ROBERT
IPC: A01N25/30
Filed: 1962-02-15
Abstract: A concentrated aqueous herbicidal composition comprises a herbicidal bipyridylium salt and as a wetting agent a water-soluble condensate of ethylene oxide with an aliphatic amine containing a chain of 6 to 20 carbon atoms, e.g. the compound of formula <FORM:0998264/A5-A6/1> wherein R is an aliphatic chain of 6-20 carbon atoms and x and y are integers, or an acid addition salt of said condensate such as the chloride or acetate.  The group R may be derived from coconut oil or soyabean oil fatty acids of formula R.COOH and may be saturated or unsaturated.  Additional wetting agents, e.g. ethylene oxide condensates of p-nonyl phenol may be present. Herbicidal bipyridylium salts specified are 1,11-ethylene-2,21-bipyridylium dibromide, 1,11 - dimethyl - 4,41 - bipyridylium di-(methyl sulphate) and dichloride. Corrosion inhibitors, e.g. sodium nitrile, sodium benzoate sodium metaborate, potassium and dipotassium hydrogen phosphates and sodium molybdate and antifoaming agents may be present.  Specifications 785,732, 813,531, 813,532 and 913,413 are referred to.
Patent GB-1178703-A (GB)
Title: Improvements in or relating to Gyroscopic Systems
IPC: G01C25/00
Filed: 1966-02-11
Abstract: 1,178,703. Gyroscopic apparatus. SPERRY RAND Ltd. Feb.8, 1967 [Feb.11, 1966], No.6011/66. Heading G1C. A gyroscopic stable reference apparatus of the type disclosed in Specification 1, 051, 905 is aligned under start-up conditions in two successive startup phases controlled by timers whilst the gyro rotors are run to speed, mechanical stops being provided to limit the angular movements of the gyrovetical gimbals relative to each other, and provide forced procession of these gimbals during rapid alignment of the system. In the first phase the platform pitch servo is fed in opposition with signals derived a gravity reference sensitive to that of the platform about the craft pitch axis and from the gyro vertical pitch pick-off, the platform roll gimbal being effectively slaved to the craft during this first phase. Damping is also privided by a rate networks fed with an output fan the platform pitch output transmitter. In this way the platform is rapidly aligned in pitch and the gyrovertical spin axis is also aligned in pitch by the effect of the limit stops provided about the gyrovertical pitch axis which limit movement to Œ 1 degrees. This forced movement of the gyrovertical horizontal gimbal will cause precession of the rotor gimbal about the roll axis but this is limited to Œ 15 degrees by the limit stops on the gyrovertical about this axis. In the second start-up phase the normal control loops are re-established between the gyro-vertical and platform about the pitch axis and about the roll axis, the platform roll gimbal being freed and the gyro-vertical spin axis is rapidly erected about the roll axis by a signal from the roll pick-off which is fed to the platform pitch servo again causing precession of the gyro-vertical spin axis into the vertical, about the roll axis by virtue of the stops provided on the gyro-vertical pitch axis which allows only Œ 1 degree of movement.
Patent GB-127545-A (GB)
Title: Improvements in and relating to Goggles for Airmen, Motorists, and others.
Inventor: SALT ALBERT EDWARD
IPC: A61F9/02
Filed: 1919-03-11
Abstract: 127,545. Salt, A. E. March 11, 1919. Goggles. - In order to facilitate removal and replacement of the glasses, the frames a are made L-shaped in cross-section from their inner edges up to the line x-x, the remainder being U- shaped in cross-section. One loop of the usual spring frame c is in contact with the glass d, and bears against the flange b of the U-shaped portion of the frame a.
Patent GB-138199-A (GB)
Title: Improved application of bearings for the carrier or supporting rollers of machines for drying and carbonizing wool or other fibres or fibrous material
IPC: D01C5/00
Filed: 1919-03-12
Abstract: 138,199. Crowther, H. March 12, 1919. Channels in cone bearings.-Bearings for the carrier or supporting rollers of machines for drying and carbonizing wool or other fibrous material are made in the form of conical-ended fixed spindles a engaging recesses in the ends of the roller shafts. Lubricant is forced to the bearing from a screw-threaded recess d through a bore c.
Patent GB-580446-A (GB)
Title: Improvements in releasable escape means for aircraft
IPC: B64D17/52
Filed: 1944-06-21
Abstract: 580,446. Safety devices for aircraft. MAZUREK, S. June 21, 1944, No. 6175. [Class 4] Means for escaping from an aircraft comprises a compartment 1 which may be detached from the fuselage and allowed to descend under the restraint of parachutes 20, the suspension lines 21 of the latter being attached to straps 23 connected to a gathering ring 18 at the upper end of a cable 17, to the lower end of which is attached a second gathering ring 16 carrying cables 15 attached to the top of the compartment 1. The compartment is normally suspended in an opening in the fuselage by a hook 8 supported om the top of the fuselage and engaging an eye 9 at the top of the compartment, release being effected by a rip cord 13 or by the pilot through remote control. Vertical guides 2A are provided at the sides of the safety compartment, engaged by rollers 2B supported from the inside of the fuselage opening. The compartment is watertight and is provided with end doors, and escape hatches as the top. A shock-absorbing base 7 is also fitted, together with a release device 19 for detaching the compartment from the parachutes on alighting on land or water.
Patent GB-107196-A (GB)
Title: Improvements in Ship-propellers.
Inventor: MATTHEWS ERASTUS DAVIS
IPC: C23F13/02
Filed: 1917-05-02
Abstract: 107,196. Davis. M. E. June 16, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Corrosion, preventing.-To prevent the corrosion of steel or cast-iron propellers, they are coated with copper or similar metal, and to prevent consequent electrolytic action, the shaft is insulated from the hull and zinc slabs are fitted adjacent the shaft and propeller. The blades and boss of the built-up propeller are coated with copper &c. 5 and the shaft 1 has a bronze sleeve 2 running in a lignum-vitµ bearing 11. The end of the sleeve 2 extends into a recess 6 in the propeller boss and a watertight joint is made by a gasket 7. Zinc plates 13 are mounted in proximity to the propeller and its shaft, as shown.
Patent GB-162270-A (GB)
Title: Improvements in or relating to burners for pulverised fuel
IPC: F23D1/00
Filed: 1921-02-25
Abstract: 162,270. Buell, R. N. Dec. 21, 1920, [Convention date]. Rotary cylindrical valves. - The Specification as open to inspection under Sect. 91 (3) (a) describes a valve having an outer casing 56 with two inlets and two outlets 57 and an inner rotatable member 58 provided with ducts 59, 60, either of which may communicate with an inlet and an outlet port in the casing 56. This subject-matter does not appear in the Specification as accepted.