baber/WOPTO huggingface dataset:
Patent GB-549016-A (GB)
Title: Improved method of casting metal articles
IPC: B22C9/04
Filed: 1941-04-30
Abstract: 549,016. Making cores and moulds. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd., and PRITCHARD, P. April 30, 1941, No. 5591. [Classes 83 (i) and 83 (ii)] A core or mould part for producing intricate castings is made by casting from readily-fusible metal and electro-plating with copper, nickel, or other metal. This plated core or mould part may, before use, be heated to melt out the fusible metal, and be filled with moulding sand, cement, asbestos &c. in such form that it can be readily broken out. After the article has been cast and the filling removed by running or breaking out, the copper &c. shell is removed by an acid which will not attack the cast article, e.g. nitric if the article is of aluminium. The Provisional Specification describes the removal of the shell electrolytically.
Patent GB-115070-A (GB)
Title: Improvements relating to Centrifugal Pumps and Fans.
IPC: F04D29/24
Filed: 1917-04-21
Abstract: 115,070. Gwynnes, Ltd., and Breeze, J. F. April 21, 1917. Impeller blades. - The blades have the inlet portions curved inwardly away from the direction of rotation, the passages between the blades being curved with regard to the direction of rotation forwardly near their inner ends and rearwardly towards their outer ends.
Patent GB-374007-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J17/06
Filed: 1931-02-23
Abstract: 374,007. Coating with metals ; treating metallic surfaces to produce a modified surface. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Feb. 23, 1931, No. 5643. Convention date, Feb. 25, 1930. [Class 82 (ii).] A glow-discharge lamp has at least one electrode in which alkali metal is provided on a layer of alkali-metal oxide of the composition R2O in which R denotes an alkali metal. The lamp may comprise a ring-shaped metallic elec. trode 3 and a copper-plate electrode 5 which is coated with caesium oxide on one side and with aluminium oxide on the other side. The elec. trode is formed by introducing caesium into the lamp by evaporation from a chamber connected therewith, or by the method described in Specification 323,718, [Class 39 (i), Electric lamps, Arc &c.]. An excess of oxygen is then introduced to form caesium oxide of the composition Cs2O4 which is reduced at a temperature of 200‹ C. to Cs2O by the introduction of a further quantity of caesium. More caesium may be introduced to form the layer of pure metal if the second quantity of caesium is insufficient. In a modification, a calculated quantity of oxygen is introduced after the admission of caesium to form Cs2O directly. In a further modification, the copper plate is caused to adsorb water vapour which reacts with caesium to form Cs2O and hydrogen which is removed. Reference has been directed by the Comptroller to Specifications 362,346 and 362,347, [both in Group XL].
Patent GB-234213-A (GB)
Title: An improved rheostat
IPC: H01C10/26
Filed: 1924-03-06
Abstract: 234,213. London & Provincial Radio Co., Ltd., and Duckworth, E. March 6, 1924. Variable resistances.-A coil of resistance wire A is wound on a cylinder a of vulcanite &c. mounted on a rod a<1> which is slidably and rotatably mounted in a bearing B adapted to be clamped to a panel C to form a one-point attachment. The rod a<1> terminates in a handle a<2> by which it can be slid or screwed past a stationary contact to effect a coarse or fine setting. The stationary contact consists of a loop d<2> encircling and making contact with the resistance coil A, a portion d<3> being indented to engage the screwthread formed by the resistance wire.
Patent GB-115081-A (GB)
Title: Improvements in or relating to Hose or Pipe Couplings.
IPC: F16L17/067
Filed: 1917-04-24
Abstract: 115,081. Vickers, Ltd., McKechnie, Sir J., and Evans, C. April 24, 1917. Cup-leather joints; joints comprising packing operated by fluid pressure.-In a pipe joint of the kind in which fluid pressure acts on the packing to secure a fluid-tight joint, the ends of the coupling members a., b are reduced and are inserted into an internally flanged sleeve, providing an annular recess c<2> in which the packing rings D are placed. Two or more rings of circular or rectangular cross-section may be used, or a single ring of channel crosssection. Several arrangements of packing-rings are described. As shown, the sleeve engages behind a flange on the member b and screws on to the member a.
Patent GB-871319-A (GB)
Title: Method for the regulation of the flow of the bath of molten glass and of the temperature of the molten glass in tank furnaces
IPC: C03B5/20
Filed: 1959-02-19
Abstract: 871,319. Making and purifying metal. DEUTSCHE TAFELGLAS AKTIENGESELLSCHAFT DETAG. Feb. 19, 1959 [March 5, 1958], No. 5792/59. Class 56. The flow of the bath of glass and the temperature of the molten glass in a tank between the highest melting temperature and that at takeoff are regulated by feeding incombustible gases transversely to the tank's longitudinal axis from at least one longitudinal side above the surface of the glass at such an overpressure that transverse currents of gas are set up which check the progress of the forwards flowing glass melt and which have the effect of causing purer glass to be delivered to the take-off section. As shown, glass fed into the dog-house 1 is melted in the chamber 2 and passes under a float 5 into the refining chamber 3 which has a curtain wall 6 under which the metal passes to the processing chamber 4. In the chamber 3, nozzles 9 are mounted adjacent the metal and extend obliquely inwards contrary to the flow. Nozzles 10 are mounted directly above nozzles 9 and a series of nozzles 11 are mounted in the roof blowing directly down on to the glass melt. Each nozzle is separately connected to give a high compression jet of gas regulated by a valve 7 and pressure regulator 8. In place of the nozzles one above the other, they may all be on the same level in the chamber 3 and preferably are staggered from one side to the other. In each case, the float 5 and curtain wall 6 may be dispensed with ; when the chamber 2 will be the normal length, that including the float 5 and wall 6 being shorter than usual.
Patent GB-507106-A (GB)
Title: Improvements in four-stroke internal-combustion engines having a single camshaft andan auxiliary driven therefrom
IPC: F02B75/02
Filed: 1938-02-24
Abstract: 507,106. Valve gear. TRIUMPH ENGINEERING CO., Ltd., and TURNER, E. Feb. 24,.1938, No: 5834. [Class 7 (vi)] A chain drive for the cam-shaft and an auxiliary of a four-stroke engine, particularly for motor cycles, is arranged so that, for the normal direction of crank-shaft rotation, the main load on the chain is taken by the camshaft and not by the shaft of the auxiliary. The cam-shaft 1 is arranged above the crankshaft 2, which drives the chain 9 through a pinion 6 and internal teeth on a sprocket 5, the chain passing around sprockets 7 and 8 on the cam-shaft and auxiliary respectively. A tightening-device 10 may be provided on the longest run of the chain. For a multicylinder engine, the cam-shaft may be arranged at 1a, as shown in dotted lines. Specification 475,860 is referred to.
Patent GB-823014-A (GB)
Title: Bed-settee
IPC: A47C17/23
Filed: 1958-02-24
Abstract: 823,014. Bed settees. THOMAS, J. R. Feb. 24, 1958, No. 5942/58. Class 52(2) A bed settee with a frame in which are mounted a seat section 20, an intermediate section 22 and an outer section 24 for extension to form a bed or folding to form a seat has behind a fixed front board 16 and extending downwardly and inwardly from its upper edge, guiding and supporting means comprising at each side a curved plate 114 with a bracket 116 for mounting a roller 118, the plate 114 engaging wheels of outer 'legs 88 or inner legs 86 and the rollers 118 engaging other folding parts to support and guide them over the fixed front board during folding and unfolding. During unfolding seat section 20 is inverted on links 26, 28 about pivots 30, 32 on mounting members 34 secured to the settee side arms 10 to lie behind section 22 which moves forward with the outer section. The weight of the foldable sections is partially counterbalanced by springs 126, 128 attached to links 26, 28 and stop pins 38 hold the seat 20 in its inverted position. Flexible straps 46 each connected by a helical spring 48 with a cross rail 50 and by springs 56 to a support at the other end of section 20 or to a wire bed fabric extending in the other two sections supports a loose seat cushion or the bedding &c.
Patent GB-510557-A (GB)
Title: Improvements in coin-freed locks
IPC: G07F17/14
Filed: 1938-02-25
Abstract: 510,557. Coin-freed door locks. B. & S. (WILLENHALL), Ltd., and HOGGINS, S. Feb. 25, 1938, No. 5962. [Class 27] Registering. - In a coin-freed lavatory door lock comprising a coin-freed lever D fitted with a handle d<1> by which the bolt B is operated from the outside, and with a separate follower (not shown) for operating the bolt from the inside, the said lever D is extended at d<2> to engage and actuate the arm g of a coin register G. The extension d<2> is curved outwardly toward the lock cover plate and acts as a cam on the arm g as the lever, D is moved backwards to open the door after insertion of a coin. The bolt B has projections engaging behind the lever D and follower. Coin action, weight; coin discharging mechanism.-The inserted coin passes down a chute C and tilts a lever H out of locking engagement with the lever D. The coin remains on the locking lever H the movement of which is limited by a pin b<2> on the bolt, but when the bolt is withdrawn the lever H tilts further to release the coin.
Patent GB-1381244-A (GB)
Title: Hydraulic jack with internal mechanical locking means and means to  indicate that locking has occurred
Inventor: LUCIEN R
IPC: F15B15/26
Filed: 1973-02-07
Abstract: 1381244 Locking hydraulic jacks MESSIERHISPANO 7 Feb 1973 [8 Feb 1972] 5988/73 Heading F1D A hydraulic jack, 1, 3, 4, Fig. 1, is locked in the retracted position by claws 12 which engage a head 11 on the piston and are held in engagement by a locking piston 13 carrying a target 23 which comes to rest opposite a proximity detector 22 so that a signal is produced when the piston is locked. To unlock the piston and extend the jack fluid is admitted through a port 7 to push an unlocking piston 17 to the right. A stop 21 on the piston 17 pushes the locking piston 13 to the right against a spring 14. This releases claws 12 and the head 11 is pushed out from between the claws by the hydraulic liquid. When the jack is retracting, the pistons 13 and 17 are arrested by the claws 12 until the head 11 has been engaged. The spring 14, which has been compressed by the continuing movement to the left of the piston head 11, now pushes pistons 13 and 17 into the locking position. Figs. 2 and 3 (not shown) illustrate jacks with similar locking devices provided in the extended position of the jack and in both retracted and extended positions.
Patent GB-433960-A (GB)
Title: Improvements in or relating to titanium pigments
IPC: C01G23/053
Filed: 1934-02-23
Abstract: The hydrolysis of a titanium salt solution such as the chloride or sulphate is effected in the presence of say 2--6 per cent of a "finely dispersed" titanium salt which is difficulty soluble in mineral acids, the finely dispersed salt being obtained by adding to a titanium salt solution a small amount of a soluble salt or acid yielding the desired salt, converting the precipitate obtained into a sol as by stirring, and coagulating the sol as by heating.  The sol may be added to the main solution and coagulation be subsequently effected, or the production of the finely dispersed salt be wholly effected in the main solution. Finely dispersed titanium salts specified are the phosphate, the double sulphate or fluoride with potassium, the silicate, and titanium zirconium compounds. Hydrolysis may be effected in the presence of fillers such as barium or calcium sulphate or silica, and calcination of the products yields excellent pigments.  In one example using finely dispersed titanium phosphate, the precipitate obtained contains 1 per cent of P2O5.  In a second example the finely dispersed salt is the double sulphate with potassium and is first precipitated by adding potassium sulphate to the solution.  The Specification as open to inspection under Sect. 91 states that any known method of producing the finely dispersed salt may be employed.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1221799-A (GB)
Title: Process for the manufacture of aminoacetic acids
IPC: C07C227/08
Filed: 1968-02-07
Abstract: 1,221,799. Aminoacetic acids. FARBWERKE HOECHST A.G. 7 Feb., 1968 [7 Feb., 1967], No. 6117/68. Heading C2C. Aminoacetic acids of the general formula RNHCH 2 COOH, where R = H or an aliphatic, cycloaliphatic or araliphatic group are prepared by reacting a monohalogenoacetic acid with NH 3  so as to mono- and/or di-substitute the ammonia, or a primary aliphatic, cycloaliphatic or araliphatic amine so as to mono-substitute the primary amine groups at a pH above 7 in the presence of metal ions which act as complex formers for the amino acetic acid formed with the use of at least 0À5 mol. of NH 3  per 1 mol. of monohalogenoacetic acid or at least 0À8 equiv. of primary amine groups per 1 mol. of monohalogenoacetic acid. The metal ions are preferably the bivalent or trivalent ions of the metals of Groups I-III and VIII of the Periodic Table of elements according to Mendeleef e.g. Ca, Fe, Cu, Zn, or Al which are employed in the form of a water-soluble salt, oxide or hydroxide. Chloro-acetic acid is the preferred starting material. In the examples chloroacetic acid is reacted with NH 3 , monoethanolamine, cyclohexylamine, ethylenediamine, diethylenetriamine and methylamine. Ammonia yields either iminodiacetic acid or glycine.
Patent GB-1459716-A (GB)
Title: Method of producing a superconductor
IPC: H01L39/06
Filed: 1975-02-13
Abstract: 1459716 Nb-Cu composite for superconductors KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 13 Feb 1975 [19 Feb 1974] 6155/75 Heading H1A [Also in Division B3] In a method of producing a Nb-Cu superconductor, the Cu conductor is cast round a body of superconductive Nb, and cooled, so that the Nb is totally surrounded in cross-section. Preferably the composite body is continuously cast, the Nb strip or wire 2 being supplied from a reel, passing over roller 3 and is fed by rollers 4 into a continuous casting mould 5 of any desired shape. To ensure centralization of the Nb, the strip or wire 2, which is smaller than the material dimensions of mould 5, is fixed to the vertically movable ram 7 forming the base of mould 5 prior to casting. Liquid Cu 6 is poured into the mould, the resulting billet 8 being cast with the Nb centrally located. The composite NbCu body 8, in which the Nb and Cu are joined by a diffusion layer may be hot rolled, annealed, cold rolled to under 0À5 mm. and further annealed, the strip so formed being shaped into a tube, the edges of which 10, 11 may be welded 14. The resulting tube 17, may be corrugated at 15 and wound on to a drum 16. From the corrugated superconductor so formed, cables of great length may be produced. An example of a cable with a number of coaxial corrugated tubes, the innermost being the superconductor 17 is shown in Fig. 4, the spaces between the tubes being packed with "superinsulators" or evacuated. This type of cable has excellent heat insulation properties and is flexible and can accommodate thermal expansions and contractions due to the corrugations, and due to the diffusion layer between the Cu and Nb, is mechanically strong enough to withstand deformation.
Patent GB-806266-A (GB)
Title: Improvements relating to conduit systems
Inventor: HAFTKE JOZEF JERZY
IPC: F16L27/08
Filed: 1956-02-28
Abstract: 806,266. Pipe joints; articulated pipes. BABCOCK & WILCOX Ltd. Feb. 27, 1957 [Feb. 28, 1956], No. 6228/56. Classes 99(1) and 99(2). In a plant which includes a closed conduit 3 wherein there is an absence of coincidence in a single plane of the expansions and/or contractions of the parts of the conduit, the latter is provided with three, spaced, flexible joints X, Y, Z each connecting two adjacent parts of the conduit and being provided with constraining means arranged to determine the relative spacing of the adjacent ends of the two parts and each permitting relative movements of the parts of the conduit which it connects only in a plane normal to a hinge axis of the joint. The hinge axes of the three joints are parallel but not all coplanar and these axes are all normal to a single plane containing the vector sum BC of the expansions and/or contractions. As shown, the condiuit 3 conveys steam from a steam generator 1 to a turbine 2, fixed relatively to the generator 1, and is fixed at the points A and B respectively ; the corner junctions between adjacent lengths 10 . . . 15 of the conduit are rigid. Each joint comprises a flexible, corrugated element 26 connecting pipes 20, 21 to which are secured diametrically opposed pairs of plates 23, 24 linked together by hinge pins 25, the common axis of the pins intersecting the axial centre lines of the pipes ; the constraining means are in the form of a plate-like spacer diametrically disposed within the joint. In a modification, wherein the turbine 2 is liable to lateral or vertical movement, the hinge axes of the joints are all normal to a single plane containing the vector sum of the expansions and/or contractions and either containing or parallel to a further vector representing that movement.
Patent GB-799580-A (GB)
Title: A hydraulic regulating system for elastic fluid turbines
IPC: F01D19/00
Filed: 1955-03-03
Abstract: 799,580. Elastic fluid turbines. LICENTIA PATENT-VERWALTUNGS-GES. March 3, 1955 [March 3, 1954], No. 6289/55. Class 110 (3). [Also in Group XXIX] The admission valves of an elastic fluid turbine are regulated by a servo-mechanism under the control of an hydraulic control means which includes a control valve operated by a speed governor and supplied with oil under constant pressure by a pipe fitted with a pressure regulating valve. In an embodiment, pressure oil is supplied past a restriction 17, Fig. 1, to the pressure-regulating valve 16 consisting of a differential piston 19, 21 oppositely loaded by springs 20, 22 of which spring 22 can be adjusted by a handwheel 24. In the stop position of the turbine, as shown, the pressure oil is blocked by land 19. To start the turbine, spring 22 is adjusted to raise piston 19, 21, and the pressure oil then flows through line 18, past a centrifugal governor-actuated shuttle control valve 3 which, with the governor at rest, will be in its upper limiting position, and through a line 4 to the upper side of a spring-loaded piston 6. The resultant lowering of piston 6 closes a valve 7 on to its seat on a spring-pressed piston 9 and thus closes off the escape passage for pressure oil which is being supplied to the chamber situated above piston 9. Pressure will thus build up above the piston and the latter will be lowered, taking with it a floating lever 10 and thus actuating the main control valve 11 of a rotary vane servomotor 12. The shaft of the latter is connected to the regulating valves of the turbine, and the movement of the vane is also fed back to valve 11 through a cam 14 and the floating lever 10 in order to recentre the valve. After the turbine has started, the centrifugal governor 1 acts on shuttle valve 3 and takes over control of servomotor 12. Adjustment of spring 22 by handwheel 24 varies the pressure of the motive fluid used in the control system and so sets the datum speed for the turbine. The lower edge of land 19 acts as the valve regulating the pressure of the oil supplied by line 15 and, in a modification giving finer control, the edge 27, Fig. 2, is sharpened and serrated.
Patent GB-566203-A (GB)
Title: An improved luggage carrying, body resting and load suspending device for use by travellers
IPC: A45F3/14
Filed: 1943-04-20
Abstract: 566,203. Body-harness. HAYGARTH, J. April 20, 1943, No. 6304. [Class 141] [Also in Group XIV] A device which may be used for carrying luggage comprises a flexible band 1 adapted to pass over the shoulders of a wearer with adjustable suspending means at each end. The ends 3 of the band 1 may have stiffening members, and a cord attached to hook 10 passes through a tubular member 7 and through eyelets 4 in the ends of the band to one end of the member 7 so that the length of the suspending means may be adjusted. The hooks 10 may be engaged in the handles of suit cases &c. to be carried, or engaged over luggage racks in a railway compartment to provide an arm rest for a standing passenger.
Patent GB-553357-A (GB)
Title: Improvements in and relating to carrier wave receivers
IPC: H03D5/00
Filed: 1942-05-13
Abstract: 553,357. Valve circuits for wireless reception ; frequency modulation. BRITISH THOMSONHOUSTON CO., Ltd. May 13, 1942, No. 6509. Convention date, May 14, 1941. [Class 40 (v)] A receiver for alternative reception of frequency-modulated or amplitude-modulated waves, comprises an electron discharge device arranged as a limiting amplifier for the FM carrier and as a grid circuit rectifier for the amplitudemodulated carrier. As shown the IF amplifier 17 feeds the discharge device 1 through two pairs of circuits tuned respectively. to a high I.F., e.g. 4.3 mc, for the FM reception, and to a lower I.F., e.g. 455 kc for the AM reception. The AM waves are rectified in the grid-cathode circuit and give the detected signal across the resistance 13. The FM wave is amplified in the device 1 the tuned late circuit 18 of which feeds a discriminator of the phasing type which is associated with a pair of diodes 24, 25 in a valve 2 and gives a detected signal across the resistances 27, 28. The presence of the resistance 13 and condenser 14 m the grid circuit has a levelling effect on the amplitude of the FM output in the circuit 18. Choice of detected signal is afforded by a switch 40 which connects a potentiometer 41 either across the resistance 13 or across the series resistances 27, 28, the tapping being connected to the grid 4 of a LF amplifier which may be in the same ,envelope as the diodes 24, 25. The switch 40 may be ganged with a switch 43 controlling the voltage on the screen grid 8, and with other switches for changing the wave-band of AM reception. In a modification, Fig. 2 (not shown), the control switch 40 is ganged with other switches which disconnect both the anode and the screen of the device 1 from their HT supply when the switch is set for AM reception.
Patent GB-644415-A (GB)
Title: Improvements in or relating to multiplex pulse modulation radio-receivers
IPC: H04J3/10
Filed: 1948-03-02
Abstract: 644,415. Multiplex pulse signaling; pulse discriminating circuits. PHILIPS ELECTRICAL, Ltd. March 2, 1948, No. 6550. Convention date, March 5, 1947. [Classes 40 (v) and 40 (vi)] The synchronizing pulses of a multiplex pulse train are of longer duration than the signal pulses, and are separated at the receiver by differentiation and threshold limiting. This prevents the synchronizing pulses from being modulated by adjacent channel signal pulses and so reduces cross-talk. The incoming phase or duration-modulated pulse signals, after amplification and amplitude detection at 50, are applied to a secondary emission tube 52 which acts as a threshold and peak limiter and as an amplifier, supplying positive pulses from the auxiliary anode which are amplified at 58 and applied to all the receiving channels 11 . ... 18, the channels being separated by gating pulses from generators 41 ... 48. Negative pulses from the main anode of tube 52 are differentiated by condenser 60 and resistor 61, their time constant being shorter than the duration of the synchronizing pulses, but longer than the maximum duration of the signal pulses. The differentiated synchronizing pulses produce greater positive peaks than the signal pulses and these peaks are clipped by a pentode 62 normally biassed beyond cut-off, and passed by a coupling condenser 65 to initiate the operation of a chain of channel gating pulse generators 41 ... 48.