baber/WOPTO huggingface dataset:
Patent GB-532241-A (GB)
Title: Improvements in or connected with non-return valves for liquids
IPC: F16K15/03
Filed: 1939-05-18
Abstract: 532,241. Non-return valves. HAM, BAKER & CO., Ltd., BENCE, E. H., and MORGAN, E. I. May 18, 1939, No. 14842. [Class 135] A hinged non-return valve is urged towards its seat by a spring-loaded plunger co-operating with a cam surface on the valve or on a hinged member co-operating with the valve. In the form shown in Fig. 1 the valve member has a pair of spaced lugs secured to a pivot pin 3 by set-screws 14, said pin being rotatably mounted in bosses in the casing and held against endwise movement by plugs screwed into the casing. Loosely mounted on the pin 3 between the lugs is a member 7 having an arm 7b bearing on the back of the valve member and a cam surface 7a engaged by the spring-loaded plunger 10a. The plunger 10a is slidably mounted in a tubular fitting secured to the valve cover 8 by nuts 15 and a flange 9b. The outer end of the fitting is internally threaded to receive an adjustable abutment 12 for the spring 11 and is closed by a screwed cap 13. The valve may rotate on the hinge pin and the part 7 may be integral with the valve member. According to the Provisional Specification an external tension spring may be secured between an arm on the valve pivot and an adjustable eye-bolt on a bracket on the casing. A plate spring may engage the cam surface or a flat spiral spring may be mounted on the valve spindle. The valve may be loaded by a volute spring mounted on a screwed hinge spindle co-operating with a reciprocating nut motion.
Patent GB-483948-A (GB)
Title: Improvements in air cooling system for internal combustion engines
IPC: F02F1/06
Filed: 1937-05-28
Abstract: 483,948. Cooling cylinders. DOMANMARKS ENGINE CO., Inc. May 28, 1937, No. 14895. Convention date, March 24. [Class 7 (ii)] Cooling air is supplied to two conduits 16, 19 extending along opposite sides of a bank of cylinders, that from the conduit 16 flowing through spaces 17 between circumferential cooling fins, and that from the conduit 19 flowing through nozzles 20 extending to the fins. The two currents unite to leave by passages 21 leading to the cylinder bases and the crank-chamber. The cylinders may be separate with overlapping fins, or they may be formed as a single casting, alternate fins being omitted between adjacent cylinders to form the passages 17. The air is supplied by a centrifugal pump 22, guides 28 being provided in the conduit 19, which is, preferably, converging in cross-section. If the cylinder heads have wells 35, further cooling air is supplied by a converging conduit 36 having branches 37 mounted on shoulders 38 in radiating ribs 34.
Patent GB-474963-A (GB)
Title: Improvements relating to crankshafts for twin-cylinder internal-combustion engines
IPC: F16C3/12
Filed: 1937-05-29
Abstract: 474,963. Crank - shafts. TRIUMPH ENGINEERING CO., Ltd., and TURNER, E. May 29, 1937, No. 14941. [Class 80 (ii)] [Also in Group XXVII] In a twin-cylinder internal-combustion engine, in which parallel cylinders 1 are coplanar with the crank-shaft axis, the connecting-rod big ends 19 are mounted on coaxial crank pins 18 which extend from opposite sides of a central fly-wheel 24, to which they are preferably attached by discs 20 having strengthening webs 21. The crank pins are fixed to webs 17, having coaxial shafts 3, 4, to which are connected a driving sprocket 7 and a timing gear 9. Specification 475,860, [Group XXVII], is referred to.
Patent GB-514965-A (GB)
Title: An improved "pass" indicator for use on road vehicles
IPC: B60Q1/50
Filed: 1938-05-19
Abstract: 514,965. "Pass" indicators RAPSEY, T., and MAINWARING, D. May 19, 1938, No. 14956. [Class 118 (ii)] A "pass" indicator for road vehicles consists of a plate marked PASS, fitted with a hinged cover 3 remotely actuated by a cable against the action of a spring 5. The lamp is switched on or off when the cover is raised or lowered at night.
Patent GB-121496-A (GB)
Title: Improvements in or relating to Coal-distilling Apparatus.
IPC: C10B7/00
Filed: 1917-10-16
Abstract: 121,496. Oil Extractors, Ltd., and Lamplough, F. Oct. 16, 1917. Generating by indirect contact of heated gases; pressure, regulating.-Coal is distilled in the presence of steam which is supplied from a generator with a water supply under a head free to rise and fall so that the height of the head regulates the pressure of the steam, and generation of steam ceases when the pressure is sufficient to drive the water out of the generator. The steamgenerator may be heated by the hot gases formed in the retorts and may be fed 'by a feed-water heater similarly heated. Steam is admitted to the retorts at J<2> by means of a pipe J and conduits J<1>, in which the steam is superheated before passing to the retorts. The pipe J leads from a generator G<1> of the tubular type heated by the hot gases from the retorts which are led from a cylindrical receiver connected to each retort by a conduit F<1> by means of a conduit G, and, after passing through the generator, the gases are led by a conduit G<2> to condensers &c. The boiler G<1> is fed by a feed-water heater H' also connected to the gas receiver F, and the heater H<1> is supplied from a tank H<4> and pipe H<3> so arranged that the head of water in the tank H<4> depends on the steam pressure, and if this becomes excessive all the water is driven from the generator G<1>. The head of water may also be produced by arranging the heater H<1> above the generator G<1>, and providing water-supplying means for the heater. More than one cylindrical receiver as F may be provided for a set of retorts, if desired.
Patent GB-645101-A (GB)
Title: Improvements in the manufacture of radiator fins or gills and like members
IPC: B21D53/02
Filed: 1948-06-03
Abstract: 645,101. Making radiators. FORD MOTOR CO., Ltd., LEEK, J. W., and KNOWLES, J. C. June 3, 1948, No. 15015. [Classes 83 (ii) and 83 (iv)] Punching; shearing; flanging; beading; soldering.-Apparatus for perforating metal fin or solder strips g for use in making radiators comprises rollers d, e, between which the strip g is fed, one roller d having holes f of a required size and pitch and the other carrying co-operating punches h to punch and flange or dimple the holes in the strip. The rolls d, e are gear driven in synchronism and the lower roll e is vertically screw-adjustable and is spring mounted. A reciprocating shear n is operated through a bell-crank o from a cam changeable to vary the length of strip cut. Means m may be provided to bead the edge of the fin strip g before punching. In a modification, several pairs of rollers are mounted in one frame for perforating a number of strips. In a further modification, the upper roll may carry the punches. In a further form, the resilient roll may be controlled by lever and weight, or pneumatic, hydraulic, &c. pressure. Strip feed and controlling means as described in Specification 613,471 may be used to feed strip to the apparatus and the punched strips may be fed to the stacking machine described in Specification 613,472.
Patent GB-948012-A (GB)
Title: Catalysts
IPC: B01J21/12
Filed: 1961-04-26
Abstract: The process of the parent Specification in which a silica-alumina catalyst is made by reacting an aqueous alkali metal silicate solution with CO2 in amount sufficient to form a silica hydrogel containing dissolved alkali metal carbonate and then commingling the hydrogel with an aqueous solution of an aluminium salt of a strong mineral acid whereby alumina is precipitated from the aluminium salt solution in and on the hydrogel and is washed and dried is modified in that a slurried mass of an alkali metal silicate solution having a silica to alkali metal ratio of about 3 : 1-3,4 : 1 is provided and contacted with carbon dioxide in an amount sufficient to convert substantially all of the free alkali in the silicate to alkali metal carbonate and form a silica hydrogel containing dissolved carbonate, the resulting mass is commingled with a solution of an aluminium salt of a strong mineral acid, in an amount sufficient to provide up to 40% active alumina in the synthetic component of the finished catalyst and to react substantially completely with the residual carbonate, there being added if necessary a basic precipitant to the slurry to complete precipitation of the alumina, the product being filtered, purified and dried, with the proviso that clay may be added to the reaction materials at any stage during the process in a proportion constituting at most 50% by weight of the final product. Preferably the alkali metal salt is sodium silicate, the aluminium salt is alum and the clay is kaolin.  Comparative examples are given.
Patent GB-245410-A (GB)
Title: Improvements in or relating to the compensation of asynchronous machines by shunt commutator machines connected in cascade
IPC: H02K17/38
Filed: 1925-06-12
Abstract: 245,410. Sachsenwerk Licht - und Kraft-Akt.-Ges. Dec. 30, 1924, [Convention date]. Alternating-current commutator and induction machines.-In a shunt commutator machine which is cascaded with an asynchronous machine for phase compensation, the exciting brushes are completely separated from and adjustable with regard to the brushes connected to the main windings. By these means, the necessity of displacing the exciting windings by ninety electrical degrees from the compensating winding is removed and the compensation and speed of the commutator machine may be controlled by moving the exciting brushes. In the form shown in Fig. 1, the brushes d of the exciting coils e bear on the same commutator as the main brushes c of the compensating coils b which are cascaded at a with the asynchronous machine. Further control of the compensation may be made by means of a choke coil or resistance f. In an alternative form, the excitation is provided by a separate winding preferably in the same slots as the main winding and brought out to a second commutator upon which the exciting brushes bear. By displacing the exciting brushes from the main brushes, a simplified arrangement of the coil heads may be obtained. An example is given of a machine with 3-phase 6-pole compensating and. commutating windings with the brushes displaced by 90 and the coil heads arranged in two planes, in place of the four planes which would be necessary if the brushes were collinear.
Patent GB-662190-A (GB)
Title: Improvements in piston engines of the wobbler drive type
IPC: F16H23/04
Filed: 1949-06-08
Abstract: 662,190. Swash-plate mechanism. SPARMANN, E. E. K. June 8, 1949 [June 8, 1948], No. 15288/49. Class 80 (iii). [Also in Groups XXVII and XXVIII] In a swash-plate mechanism for internalcombustion engines, compressors, or pumps pairs of pistons 52, 55, Fig. 1, are coupled through connecting rods 51, 53 to a non-rotatable swash-plate member 3 which is carried on an inclined crank 22 of a shaft 11. The big-end of rod 51 is mounted both rotatably and laterally slidable on a cylindrical element 40 which is itself rotatable on a radial journal pin 4 of the plate 3, clearance holes 59 being provided in the big-end to allow the required freedom of movement with respect to the pin 4 and a nut 45 securing the element 40 on the pin 4. The connecting rod 53 is coupled by a pin 57 to brackets 58 on the big-end of rod 51 so that a knee-action movement in a radial plane of the swash-plate is provided whilst the lateral sliding of the big-end on element 40 allows for the necessary lemniscate movement of the plate which is provided by a suitable anchoring arrangement such as described in Specifications 618,553 and 633,088. In a modified arrangement both connecting rods are coupled by pins to brackets on a central bearing sleeve which is laterally slidable on the element 40 but not rotatable thereon. In another modification, Fig. 9, the big-end of rod 51 is both rotatable and laterally slidable on an element 40 which is rotatable on a journal pin 4 disposed tangentially on the plate 3. In this case the knee-action movement in a tangential plane takes care of the lemniscate movement of the plate whilst the lateral sliding of the big-end on element 40 allows for the varying radial distance of the journal pin 4.
Patent GB-959658-A (GB)
Title: Valve for fluids
IPC: F16K31/58
Filed: 1963-04-18
Abstract: 959,658. Pipe connections; valves. SEPARATOR A.B. April 18, 1963 [May 2, 1962], No. 15296/63. Addition to 911,799. Headings F2G and F2V. In a valve in which, as in the parent Specification, a closure member 8 is moved relatively to a port 6 by the axial motion of an element 2 in response to the application of a hose to, or its removal from, a nipple 14, difficulty of operation due to adherence of the member 8, which is of rubber or plastic material, to the inner wall of the housing is avoided by coupling the members 8, 2 by flanges 9, 10, 11, 12 so that movement in each direction is imparted to the member 8 in a manner which tends to stretch the member axially and so contract it radially.
Patent GB-272043-A (GB)
Title: An improved electric switch combined with a telephone receiver
IPC: H04R13/02
Filed: 1926-06-18
Abstract: 272,043. Dent, R. H., and Bussell, S. W. June 18, 1926. No Patent granted (Sealing fee not paid). Telephone instruments for deaf persons; receivers. - A rotary conductive arm e, Fig. 2, or boss j, Fig. 5, co-acts with a pair of contact springs f having closely adjacent yielding ramp-providing ends to constitute a switch in a watch case type receiver adapted for use by deaf persons. The springs may be mounted on an insulating disc g and the ends h may be arranged to make connection with the magnet windings.
Patent GB-678149-A (GB)
Title: Improvements in or relating to connection means for windscreen wipers
IPC: B60S1/40
Filed: 1947-06-11
Abstract: 678,149. Windscreen-wipers. PRODUCTIVE INVENTIONS, Inc. June 11, 1947 [Jan. 29, 1946], No. 15424/47. Class 138 (i). A connection means for detachably connecting a windshield wiper blade unit to a windshield wiper arm unit comprises means 3 resiliently mounted on the blade unit for connecting the unit to a connector part 40 on the arm unit and means 6 for holding the units detachably connected, a rubber element 2 resiliently supporting the connecting means 3 and acting on the holding means 6 to assist in the detachable connection. The rubber element 2, Figs. 2, 4, also forms the wiper blade, and is mounted in a holder 1, the sides 7 of which are of arcuate section to limit its movement. The holder has three pairs of rectangular openings 12, 13, 14, Fig. 9, in its sides, the openings 14 being engaged by oppositely directed lips 44 on the holding means 6 which is formed as a latch and is resiliently held in place by the top of the blade 2. A connecting member 3 closely fits over the latch 6 and has two pairs of oppositely directed lips 58, 59, which engage grooves 28 on the blade 2, through the openings 12, 13. The resilience of the blade causes it to project slightly through the openings and so normally prevents metal to metal contact between the holder 1 and the connecting means 3 and permits relative tilting which is limited by projections 60 on the connecting means 3. The blade assembly is connected to a wiper arm 5 by means of a fitting 42 which carries the connector part 40, comprising a pin which is engaged between a projecting lip 34 on the latch 6 and slots in the connecting means 3. The side walls 41 of the fitting 42 press against the walls of the connecting means and help to lock it in position on the blade. Moving the latch by means of its lever 33 releases the blade assembly from the arm. Specifications 655,261 and 678,198 are referred to.
Patent GB-1457318-A (GB)
Title: Protective coatings for field effect transistors
IPC: H01L21/00
Filed: 1974-04-08
Abstract: 1457318 Semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 8 April 1974 [3 May 1973] 15433/74 Heading H1K Undesired effects caused by light incident on a field effect transistor are mitigated by the provision on its surface of a multi-layer dielectric mirror. As described the mirror consists of a plurality of layers of alternately high and low refractive index material with high index layers adjacent both the substrate and the ambient. Zinc and antimony sulphides, calcium and magnesium fluorides, silicon, titania and silicon nitride may be used in the mirror, the materials being chosen for compatibility and to have a refractive index ratio of # 1À3-1. In a single IGFET structure based on P-type silicon the mirror, comprising 29 layers alternately of zinc sulphide and cryolite (though smaller numbers of layers are almost as effective) may constitute the gate dielectric or if the device is a MOSFET may overlie the gate. In a display structure (Fig. 5) comprising an array of MOSFETs on an N-type Si wafer a further layer 58 of silica 23 is interposed between the mirror and the gates, the drains of the MOSFETs contacting a liquid crystal layer bounded on its upper face by a transparent electroded cover 60. The layers can be formed by alternately bombarding sources of the two dielectric materials with an electron beam.
Patent GB-1178015-A (GB)
Title: Rotary-Scythe Mower Blade
IPC: A01D34/73
Filed: 1967-04-04
Abstract: 1,178,015. Rotary-scythe mowers. YARD-MAN Inc. 4 April, 1967, No. 15434/67. Heading A1F. A rotary-scythe lawnmower-blade comprises an elongated body-member 10 having leading and trailing edges 18, 20 and an end-edge 22, the leading edge having a sharpened cutting-portion 38 adjacent to the end-edge and the trailing edge being upturned to form a deflecting vane 40 which extends around the intersection of the trailing and end edges and merges into the end edge at some distance along it, the vane at the latter intersection merging into the body-portion in a smooth concave surface 46. The centre of the blade is provided with a pattern of holes 12, 16 appropriate for the mounting of the blade upon a boss (not shown) carried by the mower-spindle and the blade is symmetrical about the centre-hole 12. The outer ends 26 of the blade are stepped downwardly relative to the inner part 14 at bends 28, and extend downwardly at approximately 4 degrees to the part 14. The extreme upper edge 42 of the vane is horizontal throughout the length of the trailing edge.
Patent GB-1192746-A (GB)
Title: A Method of Electrophoretically Coating Conducting Surfaces
IPC: C25D13/18
Filed: 1967-04-04
Abstract: 1,192,746. Electro-phoretic deposition. H. TURNAUER and M. TURNAUER (trading as PETER STOLL). April 4, 1967 [April 4, 1966], No. 15448/67. Heading C7B. In a method of electro-phoretically coating an article immersed in a coating bath, the electric current passed is in the form of a sequence of pulses, the amplitude and duration of which are such that only a single species of charge carrier is discharged at the surface of the article to be coated during each pulse. Preferably the interval between successive pulses is such that the charge carries discharged by one pulse are replaced by diffusion before the next pulse, e.g. the pulses may be of length equal to of less than 10<SP>-1</SP> sec., with an interval between 10<SP>-2</SP> and 1 sec. The pulses used may be rectangular or trapeze-shaped, or may be bilateral pulses such that the mean potential of the pulse is other than zero. The bath may comprise an acrylic resin together with aluminium silicate, titanium dioxide and various pigments.
Patent GB-602477-A (GB)
Title: Supporting disc for setting up in columns textile cakes and bobbins with a view of treating them by the wet process under pressure
IPC: D06B5/16
Filed: 1945-06-18
Abstract: A supporting disc for setting-up in columns textile cakes and bobbins for their treatment by means of a liquid under pressure, each bobbin or cake being supported between two supporting discs and the whole tightened by a central rod 3, going through all the supports, is characterized in that each supporting disc 1 is rigidly connected with a sleeve 2, which extends on both sides of the disc and is provided on its cylindrical face with longitudinal <PICT:0602477/IV (c)/1> <PICT:0602477/IV (c)/2> grooves 4 corresponding to the holes 5 perforated in the disc for the passage of the liquid.
Patent GB-756347-A (GB)
Title: Improvements relating to stressed operating mechanisms, for example for operating electric circuit-breakers
Inventor: ANDERSON WILLIAM
IPC: H01H71/50
Filed: 1953-06-04
Abstract: 756,347. Automatic circuit-breakers. REYROLLE & CO., Ltd., A. June 4, 1954 [June 4, 1953]. No. 15489/53. Class 38(5) In order to overcome friction of the movable parts, which may prevent opening of the breaker when tripped, one of the elements in the train of mechanism between the spring (or other opening force), and the latch 13 is resilient so as to be deflected by the force transmitted through it. In Fig. 1, the train (not shown), terminates at 17 in a lever system 11a, 11b collectively pivoted at 15a and interconnected by'a pivot 18 and a spring 20 compressed between lever 11b and the head 22 of a pin 21 fixed to lever 11a. When the latch 13 releases the lever 11b the latter strikes the lever 11a (or a cushion 23 carried thereon), so as to overcome bearing friction in the movable parts. In Fig. 2 (not shown), the lever system is replaced by a single resilient strip carrying a weight at its end which engages the latch. In Fig. 3, a rigid latch arm 40 is connected to a lever 42 of the train by a torsion spring 43 surrounding a shaft 41 carrying the lever 42.
Patent GB-708280-A (GB)
Title: Control systems for electric motors
IPC: B65H63/02
Filed: 1951-06-29
Abstract: 708,280. Control of motors. PROTOTYPA, NARODNI PODNIK. June 29, 1951 [June 30, 1950], No. 15535/51. Class 38(3) The supply circuit 7 of an electric motor driving a textile machine includes contacts of a relay 6 having coil 5 energized from source 1. The relay is closed upon actuation of a push - button 12 which is thereupon shortcircuited by a self-maintaining contact 8 of the relay. When a contact 4 is closed, due to breakage of yarn for example, the coil 5 is short-circuited and both the motor circuit and the control circuit are interrupted. A transformer may be interposed between the source 1 and the coil 5, the contacts 8 being in the primary circuit of the transformer. Fig. 2 (not shown).
Patent GB-870500-A (GB)
Title: Improvements in inert gas producing plants
Inventor: BUDWORTH DAVID DUTTON
IPC: F02C6/06
Filed: 1957-07-16
Abstract: <PICT:0870500/III/1> A plant for producing inert gases consisting of nitrogen and carbon dioxide, particularly for fire fighting and preventing, comprises an internal combustion gas turbine having a connection 15 through which oxygen-free or substantially oxygen-free gases can be bled off from a zone A where combustion is substantially complete.  The connection 15 is annular, is connected to the zone A by branch pipes 17 and is located in a water cooling chamber 14. The oxygen-free gases pass out through a pipe 16 and are then passed through a water spray cooling chamber 18 before being piped to the point where they are required.  Specifications 704,678 and 756,413 are referred to.
Patent GB-168979-A (GB)
Title: Improvements relating to toothed transmission gearing
IPC: B63H23/00
Filed: 1920-06-10
Abstract: 168,979. Smith, J. H., Wilkie, J., and Workman, Clark, & Co., Ltd. June 10,1920. Driving-arrangements for screw propellers, - Relates to means for eliminating the chattering of the teeth of toothed reducing and like gearing used with shafts. The times of free torsional vibration of the shafts with the masses secured thereto about the gearing are equalized at least in part. In the arrangement shown in Fig. 3, a screw propeller P is driven through double-helical reducing-gearing e from high and intermediate pressure turbines a, b on a shaft l<1>, and from low pressure turbine c on a shaft k<2>. The time of the shaft k<2> is adjusted to that of the propeller P and its shaft d by prolonging the shaft k<2> and interpolating a sleeve j<1> between it and a driving- pinion j. The time of the shaft l<1> is adjusted by prolonging it and also by adding a fly-wheel m. Torsionally flexible couplings and lengths of shafting may also be used.