baber/WOPTO huggingface dataset:
Patent GB-348970-A (GB)
Title: Method of producing diammonium phosphate
IPC: C01B25/40
Filed: 1930-08-12
Abstract: Diammonium phosphate is made by absorbing ammonia in a boiling p solution of phosphoric acid or monoammonium phosphate, the escaping ammoniacal steam being supplied to a solution containing phosphoric acid.  Ammonia may be supplied to a saturator containing a boiling concentrated monoammonium phosphate solution, and the escaping ammoniacal steam supplied to a dilute phosphoric acid solution produced for example by leaching phosphate rock with sulphuric acid or with another mineral acid and alkali sulphate.  The phosphoric acid is preferably preheated to boiling and is in such quantity that the monoammonium phosphate produced corresponds in amount to that used in the first saturator.  The escaping steam may be used to preheat the phosphoric acid.  In order to produce sufficient of the mono-salt in the second saturator, excess of ammonia may be supplied to the first saturator.  Crystals of diammonium phosphate are separated directly or after cooling in a centrifuge, the mother liquor being returned together with the next charge of monosalt from the second saturater, which is first freed from the precipitated impurities of iron, aluminium, calcium, &c., and concentrated. Alternatively, phosphoric acid obtained as above and concentrated is neutralized directly in a series of absorption vessels, to the last of which ammonia is supplied until diammonium phosphate is formed. Crystals are separated, the vessel then being recharged with phosphoric acid and made the first of the series, the mother liquor being introduced into the last vessel of the series.
Patent GB-499515-A (GB)
Title: Improvements in or relating to looking-glasses
IPC: A45D42/12
Filed: 1937-09-03
Abstract: 499,515. Looking- glasses. SABATINI, C. Sept. 3, 1937, No. 24143. [Class 52 (iv)] A waist-belt 1 has a mounting 4, preferably a universal joint, for relatively adjustable rods 5, 9 at the upper end of which is pivoted a mirror 8.
Patent GB-597742-A (GB)
Title: Improvements in radio direction finders
IPC: G01S3/08
Filed: 1945-09-18
Abstract: 597,742. Radio direction-finding. SMITH, S. B., and HATCH, J. F. Sept. 18, 1945, No. 24146. [Class 40 (v)] In a broad-band high-frequency Adcock direction-finding system in which at least one pair of spaced vertical aerials A1 and A2 are connected by a coil Fl, an omni-directional signal is derived by connecting the mid-point of the coil to earth by means of a phaseadjusting series-connected capacitor C1 and resistor R1 with the resistor on the earth side of the capacitor, the junction of the capacitor and resistor being connected through an antisquegger resistor to the control grid of a valve V1, and the output of the valve being combined with the signal in the coil to give a cardioid response. The invention is shown as applied to a four element Adcock aerial, A1-A4, connected to a goniometer, each of the field coils F1 and F2 being connected as above and the anodes of the two valves V1 and V2 being connected to a tuned circuit Ll, C3 which is coupled to the goniometer search coil SC and to the input circuit of the receiver. The omnidirectional component is adjusted by controlling the amplification of the valves by means of the potentiometer R3 and small phase adjustments are effected by means of the variable capacitor C3.
Patent GB-990042-A (GB)
Title: Improvements relating to conveyors
Inventor: JACKSON ERIC WALTER
IPC: B65G43/00
Filed: 1960-07-13
Abstract: 990,042. Brakes for conveyer carriages. BECORIT (RESEARCH) Ltd., and BROWN LENOX & CO. Ltd. Oct. 5, 1961 [July 13, 1960], No. 24343/60. Heading F2E. [Also in Division B7] In a conveyer including an elevated single track 10 on which one or more carriages having wheels or other roller elements run, the carriages have a brake member 24, and means for urging it into engagement with the track 10, the brake member being operatively connected to a connecting element 29 of the carriage to which a haulage cable 30 is adapted to be attached by mechanism which automatically moves the brake member to a released position in response to the setting up of a predetermined tension in the haulage cable. As shown, the carriages include longitudinal spaced trolley units one of which incorporates a longitudinal bar 11 on which are mounted flanged rollers 12. At each end of the bar 11 there is provided an arm 13 cranked at its lower end to underlie the rail 10, the cranked portions having bearing lugs 14 between which is disposed by trunnions 16 a frame having laterally spaced limbs 15. The other trolley unit comprises a single supporting arm 13 with a single roller 12. The load-carrying structure depends from a bar 20 held by the bolts 19 and 18, the latter depending from a cross-pin 17. The structure comprises two frames 21 and a floor 22. A guard rail 23 is provided in which there may be an entry opening and a centrally raised portion of floor forms a seat. The brake member comprises a pivoted rocker of inverted channelshaped cross section the top of which carries a brake pad 26. Associated with the brake member 24 is a lever 27 of elbow form pivoted at 31. The arm 27a of the lever carries a link or shackle 29 to connect to the haulage cable 30 and a counterweight 28. The arm 27b is formed at its upper end to present a cam face engaging the underside of the brake member and is so arranged to increase the velocity ratio afforded by the arm and the cam face as the arm approaches the vertical. Specifications 916,375 and 919,281 are referred to.
Patent GB-1317346-A (GB)
Title: Cylinder and piston device
IPC: A47C3/30
Filed: 1971-04-19
Abstract: 1317346 Releasable fastenings; stays SUSPA FEDERUNGSTECHNIK GmbH 19 April 1971 [19 March 1970] 24423/71 Index F2S 31 A fluid-pressure-operated device comprises a piston 2 axially displaceable within a cylinder 1 having an annular piston seal 6, and a piston rod 3 connected to the piston and projecting from and being sealingly received in an end of the cylinder. There is a connecting channel 7 in the piston which by-passes the seal, a plurality of valves in the channel, and means 16 operable to open the valves to allow fluid to pass from one side to the other of the piston to permit the piston to move axially within the cylinder so that the length of the device can be adjusted, and to close the valves to restrict movement of the piston. Each valve comprises a resilient valve seat and a valve member resiliently biased towards the valve seat to close the channel. As shown, the ball valves 9, 9<SP>1</SP> are disposed in openings 8, 8<SP>1</SP> in the moulded piston and the openings 14, 14 are formed in a sleeve 13 between which and the channel 7 are sleeves 12, 12<SP>1</SP> of resilient material, provided with the seats 11, 11<SP>1</SP>. An axially movable control rod 15, biased by a spring to the position shown, is formed with collars, 16, 16<SP>1</SP> which, upon actuation of the rod, open the valves against the action of the spring rings 10, 10<SP>1</SP>. The device may be used for the adjustment of seats, table flaps or as a pneumatic spring.
Patent GB-574511-A (GB)
Title: Aluminium alloy
IPC: C22C21/10
Filed: 1939-08-24
Abstract: 574,511. Alloys ; annealing. HALL, H. C., and WHEELER, M. A. Aug. 24, 1939, No. 24439. [Classes 72 and 82 (i)] An aluminium alloy contains 3.9-5.8 per cent of zinc, 2.4-3.4 per cent of magnesium, 0.4-1 per cent of manganese, 0.2-0.65 per cent of iron, 0.05-0.35 per cent of silicon, and 0.08-0.4 per cent of vanadium or zirconium, or both, with or without up to a total of 0.2 per cent of one or more of the elements beryllium, titanium, tin, silver, copper, cadmium, bismuth, arsenic, tungsten, chromium, molybdenum, nickel, cobalt, boron, tantalum, cerium, niobium and lithium. In making the alloy, aluminium alloys containing respectively 5 per cent of vanadium, 12 per cent of manganese and 5 per cent of zirconium may be added to about half the aluminium, the remainder of the aluminium being afterwards added followed by the zinc and magnesium. The alloy may be heat-treated at 430-550‹ C. and quenched, followed by ageing naturally or at up to 180‹ C.
Patent GB-606330-A (GB)
Title: Improvements relating to ferrous metal articles coated with aluminium or aluminium-base alloy
IPC: C23C2/12
Filed: 1944-07-05
Abstract: 606,330. Casting composite articles; making cased cylinders. JENNINGS, H. W. K. (Alfin Corporation). July 5, 1944, No. 24509/46. Divided out of 599,684. [Classes 83 (i) and 83 (ii)] [Also in Group II] A ferrous metal cylinder has an outer coating of aluminium or aluminium base alloy and a thin intermediate film of ferro-aluminium bonded to the ferrous metal and formed at a temperature not much over 1625‹ F. A steel aeroplane engine cylinder 10 may have a flange 12 on which is placed a collar 17 having arms 18 to engage the container 16a when the article is lowered into molten aluminium 16, thus ensuring that scum does not adhere to the part to be coated. The parts to be coated are first cleaned by brushing or sand-blasting. Other parts may be coated with lime solution or the like. The molten aluminium may be heated to 1525‹ to 1625‹ F. and the article be immersed for from a few seconds to over ten minutes according to its size. It may then be rapidly cooled, e.g. by dipping in a second bath of aluminium containing 13 per cent of silicon at 1000‹ to 1250‹ F., to stop excessive formation of ferro-aluminium alloy. The cylinder steel used may contain 0.15-0.25 per cent of molybdenum, 0.35 to 0.45 of carbon, 0.60 to 0.90 of manganese, 0.8-1.5 of chromium, 0.15-0.3 silicon, and not more than 0.04 of phosphorus or 0.05 of sulphur. The temperature of the second bath is such as to cool the steel rapidly to a temperature below the Ar3 point, but above the point favouring martensite formation. With subsequent treatment the steel may have a hardness of 55-58 Rockwell C. The cylinder while still wet with aluminium or alloy from the first or second baths is then placed on an asbestos ring 26, Fig. 2, in a mould M and a muff formed about it by casting aluminium at or slightly above its melting point, thus avoiding further change in the steel structure. The casting is cooled by blowing air through it or by quenching in oil. The casting may then be heated to 1000‹-1250‹ F. for one-quarter to five minutes and quenched in oil. In a modification the casting may be placed for some time in a furnace at 1000‹ F. directly after cooling in the second aluminium bath and then be quenched in oil. The muff is then machined to produce cooling fins and remove unwanted metal.
Patent GB-905881-A (GB)
Title: Cell for the electrolysis of melts
IPC: C25C7/08
Filed: 1961-07-06
Abstract: 905,881. Cells for electrolysis of melts. CIBA Ltd. July 6, 1961 [July 8, 1960], No. 24554/61. Class 41. A cell for the electrolysis of melts is provided with a device for withdrawing a cathcde from the cell and for removing deposited metal from the cathode without exposure to the atmosphere, after removal from the cell. The upper end of the retracted cathode 20 is lifted into an enclosure 22 wherein the cathode is cooled. As the cathode enters the enclosure a stripping device 28 removes deposited metal, which is collected in a receiver 30, this being racked in and out of position. The assembly above the cell is wholly enclosed, 32, and enveloped in a protective gas environment. In the electrolysis of a fused melt, particularly of refractory metals, it is necessary to isolate the deposited metal, at cell temperature, from atmospheric contamination. A cylindrical diaphragm 18 prevents halogen gas, for example, liberated at the anode from reaching the deposited metal adhering to the cathode. The melt is heated by an electric coil 14 wound round a crucibleshaped anode.
Patent GB-1475643-A (GB)
Title: Mechanism for the transmission of rotary motion from one shaft to another
IPC: F16D3/48
Filed: 1975-06-09
Abstract: 1475643 Universal joints R L DOFFE 9 June 1975 [13 June 1974] 24575/75 Heading E2F [Also in Division F2] In a universal joint in which rotation is transmitted between two shafts through rods rotatably and slidably mounted in bores in coupling members fixed to the shafts, the rods being pivoted together as at 15, a double hinge arrangement 31, 32 is provided between yokes 16 rotatably mounted on the coupling members, the yokes not rotating. The yokes 16 are connected by two hinges each comprising pivots 31 interconnected by two links 32 so that the yokes can pivot relative to one another in either direction from a straightline position.
Patent GB-1154987-A (GB)
Title: Improvements in or relating to Drive Mechanism for Driving Flexible Members
IPC: G11B15/26
Filed: 1968-05-23
Abstract: 1,154,987. Feeding record tapes. HONEYWELL Inc. 23 May, 1968 [26 May, 1967], No. 24583/68. Heading G5R. A tape 18 passes over three capstans 40, 44, 48 which are driven at successively higher speeds by virtue of the elasticity of a belt 60 through which they are driven by a motor pulley 52, the tape 18 being thereby maintained under tension between the capstans. The central capstan pulley 56 engages the drive belt 60 on the opposite side from the two outer capstan pulleys 54, 58 and either on the same side as the motor pulley 52 as shown in Fig. 2 or on the opposite side (Fig. 1). The arrangements shown are symmetrical, so that the drive is reversible.
Patent GB-297571-A (GB)
Title: Improvements in or relating to boxes or cartons for fragile articles
IPC: B65D5/50
Filed: 1927-09-19
Abstract: 297,571. Hunt, R. Sept. 19, 1927. Fittings, internal. - A collapsable holder for a thermionic valve &c. for use in a collapsable box or carton comprises a hollow rectangular part. 3 with each side extended at one longitudinal edge thereof the extensions 4 being adapted to enter the separate corners of the box and hold the part 3 in or about the centre of the erected box. As shown the holder is formed of a one-piece blank scored and folded to produce the part 3 and doubled extensions 4, the immediately adjacent faces of the extensions being secured together. Tongues 7 may be cut in the sides of the rectangular part 3 to accommodate the bulb of a valve &c. The holder may be used in a box having countersunk ends such as is described in Specification 209,618.
Patent GB-1353421-A (GB)
Title: Exposure control systems
IPC: G03B17/42
Filed: 1972-05-25
Abstract: 1353421 Control of photographic camera exposures POLAROID CORP 25 May 1972 [3 Aug 1971 24 April 1972] 24729/72 Heading G2A Photographic apparatus for exposing photosensitive material has exposure control means disposed within a housing and which includes manually adjustable trim means movable from a predetermined normal position to an adjusted position for selectively varying the responsiveness of the exposure control means to incident light, the trim means being automatically reset to its normal position subsequent to a predetermined operation of the photographic apparatus. A trim wedge 76 having translucent portions 86, 88 of different transmissibilities is variably positioned in front of a photo-cell lens 60 in response to manually rotation of trim wheel 64. When lens 60 is half covered by portion 88 and half uncovered the assembly is in a normal position. The user may set the assembly so that lens is fully uncovered corresponding a half a stop darker, or set the assembly so that the lens is fully covered by portion 88, half a stop lighter or set the assembly to one half covering by portion 88 and one half covering by portion 86, a one stop lighter setting. Trim wheel 64 and a trim wedge 76 are pivotally supported by a mounting plate 90, to which is also pivotally supported a reset plate 112, a pin 84 mounted on trim wedge 76 engaging a slot 110 on reset plate 112 via an arcuate slot 108 formed within mounting plate 90. The reset plate has portions 126, 128 which extend below the level of plate 90 when the reset plate is other than in its normal position. Upon folding the collapsible camera in which the assembly is mounted, either 126 or 128 will be engaged by the camera structure to return the reset plate back to its normal position. The reset plate may alternatively be returned to its normal position upon removal of an exposed film unit or upon operation of the camera shutter.
Patent GB-553163-A (GB)
Title: Improvements in or relating to electric communication systems
IPC: H04Q1/442
Filed: 1939-08-29
Abstract: 553,163. Exchange and transmission systems. THUNELL, K. H., VIGREN, S. D., and CLAESSON, P. H. E. Aug. 29, 1939, No. 24781. [Class 40 (iv)] [Also in Group XL] In a system in which positive and negative signal impulses, which may be controlled by telegraph impulses or auxiliary impulses in a telephone system, are produced inductively in a transmission line, these impulses which may modulate a carrier wave and may be received by a push-pull valve system ultimately control a current-direction sensitive device such as a polarized relay so as to produce impulses similar to the original signal impulses. In a system for signalling between automatic exchanges A, B, impulse relay A1 on operating completes a charging 'circuit for condenser 18 via transformer 7 and this results in the production of a substantially uni-directional pulse (referred to for convenience as a positive pulse) in the secondary winding which modulates a carrier wave in apparatus 21. At the receiving end, the demodulated impulse produces a substantially unidirectional impulse in transformer 8<SP>1</SP> and this causes current to flow in one or other of the push-pull valves 26, 27 normally biassed to cut-off. As a result, condenser 35 is charged in a particular direction and the resulting impulse is amplified by valve 36 and causes the movement of a polarized relay 12<SP>1</SP> in the upward direction. B5 then operates and locks energizing B6, B3. Each relapse of Al, e.g. in response to dialled impulses, produces a negative pulse in transformer 7 and causes a movement of the polarized relay 12<SP>1</SP> to its lower contact to energize B4 and release B5. Two positive pulses without an intervening negative pulse are produced if, after the operation of A1 to produce the first, A4 is energized to discharge condenser 18 independently of the current through the transformer 7 and then released to allow it to charge again through the transformer. Such a second positive impulse energizes B2 at the receiving end to give a break-, in signal. A reply signal and a clearing signal for the control of a meter can be sent in the opposite direction by a relay B1. The transmission system may include a radio link.
Patent GB-869704-A (GB)
Title: Improvements in or relating to storage cabinets
IPC: A47B49/00
Filed: 1958-08-01
Abstract: 869,704. Cabinets. PINDER & SON Ltd., W., and PINDER, R. H. July 31, 1959 [Aug. 1, 1958], No. 24861/58. Addition to 803,676. Class 52(1). [Also in Group XXV] In an arrangement for pivotally mounting storage trays as in the parent Specification, pins 5a, 5b for locating hinge brackets 7 along a vertical support, or one, 5a, of them are screw-threaded and can be secured in holes in the support by wing nuts. The hinge bracket may be made of an aluminium bronze alloy.
Patent GB-1273990-A (GB)
Title: Improvements in or relating to structures for use in a body of water
IPC: E02D23/02
Filed: 1969-05-15
Abstract: 1,273,990. Floating storage-chambers. HYDRO BETONG A.B. 15 May, 1969 [17 May, 1968], No. 24920/69. Heading B7A. [Also in Divisions E1 and F4]  A buoyant open-ended cylindrical shell 1 may be used to store a liquid e.g. oil, 3 having a density less than that of the ambient water 2. The wall of the shell is made of concrete and rendered cellular to provide buoyancy and ballast tanks, Fig. 3 (not shown). The concrete may contain polystyrene spheres. In horizontal cross-section the shell may be circular or stream-line in shape, Fig. 4. When in transit the shell may be either towed or self-propelled. A stabilizing flange 4 may carry a perforated membrane or net 5. A further membrane 6 may separate the liquid and the water therebelow. A cover 7 may be provided. If said liquid is cryogenic e.g. a liquefied gas, a heat-insulating layer lines the shell and heat-insulating discs float above and below the liquid, Fig. 2 (not shown). Alternatively, heat insulation is effected by ice formed between the shell 1 and an inner concrete shell and either a layer of aerated oil or layers of ice and polystyrene particles floating below the liquid, Figs. 5, 6 and 7 (not shown).
Patent GB-601478-A (GB)
Title: Improvements in or relating to voltage modifying system
IPC: H02M3/42
Filed: 1945-09-26
Abstract: 601,478. Converting. STEVENS, A. H. (Electronic Laboratories, Inc.). Sept. 26, 1945, No. 24934. [Class 38 (ii)] In a voltage multiplying system, the load is connected in series with a D.C. source and first one and then the other of a pair of inductively connected windings, and in the winding so connected a voltage is induced by the other winding which is simultaneously connected directly across the D.C. source. Vibratory interrupters 6, 9 are operated by a magnet 14 associated with driving contact 16, so that contacts 7, 11 and then contacts 8, 12 are closed together. When contacts 7 are closed, battery 4 sends current through inductance 2 which induces in inductance 3 an E.M.F. which is added to the battery voltage in the circuit to output leads 10, 13 which is completed by the closing of contacts 11. Similarly, a voltage of similar magnitude and sense is produced between leads 10, 13 when contacts 8, 12 are closed.
Patent GB-1093014-A (GB)
Title: Improvements in or relating to burners
IPC: F23C5/02
Filed: 1966-06-03
Abstract: 1,093,014. Mounting burners. AIRFLAM, LE CHAUFFAGE DOMESTIQUE MODERNE. June 3, 1966 [Dec. 3, 1965], No. 24963/66. Heading F4T. In a mounting arrangement for a burner including a volute chamber 10 containing a turbine 9, parts of the burner such as ignition electrodes 4, a pump 7, a motor 2, a transformer 3, are mounted on a cover-plate 11 for the volute which plate is readily releasable by successive translational and rotational movements. Electric current is supplied to the transformer through a plug connection which must be opened before the hood 19 covering the burner parts can be removed.
Patent GB-1236707-A (GB)
Title: Process for making an enzymatic aerosol medicament and an aerosol medicament obtained by this process
IPC: A61K9/12
Filed: 1969-05-16
Abstract: 1,236,707. Enzyme preparations. STE. DE RECHERCHES INDUSTRIELLES S.O.R.I. 16 May, 1969 [31 Oct., 1968], No. 24964/69. Heading A5B. [Also in Divisions C3 and C4] A process for the stabilisation of an enzymatic powder medicament in an aerosol container comprises mixing the enzymatic powder with an excipient consisting of a polyalcohol and placing the mixture in an aerosol container together with an inert propellant. The enzyme may be a protease, decarboxylase, catalase, or hyaluromidase; the excipient may be lactose, and may include magnesium stearate; the propellant may be a mixture of chlorofluorinated hydrocarbons.