baber/WOPTO huggingface dataset:
Patent GB-474946-A (GB)
Title: Improvements in and relating to gas-holders
IPC: F17B1/26
Filed: 1936-12-28
Abstract: 474,946. Gas holders. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Dec. 28, 1936, No. 35523. Convention date, Feb. 21. Addition to 442,631. [Class 54] A gas holder has a concertina-like collapsable shell 12 shaped as a truncated cone, the inclination of the shell and form of the convolutions 29 being such that' when the shell is fully collapsed the convolutions rest on the bottom 10 of the gas holder in the annular space between the line of connection of the shell with the bottom and the periphery of the top disc 13. The convolutions may be of the same or different configurations. As shown, each convolution comprises substantially straight portions 21, 21a connected at their ends by curved portions 22, 23 and is reinforced by a skeleton framework comprising bars 24, 25 attached at 3 or 4 feet intervals to the outside and plates 26 and bars 27 attached to the inside of the convolution. The bars 24, 25 carry pivoted members 29, 36 having flattened ends engaging rivets on the curved portions 23, 22 located beneath the flattened ends 31, 34 of the bars 27. Adjacent series of reinforcing members may be connected by horizontal or diagonal bars or struts 41. The plates 26 may underlie lap joints 50 between the sections of the convolutions, and the ends of some of the sections may be provided with flanges 52. The bars 24 may support concrete blocks 42 for maintaining the gas pressure in the holder. Additional concrete blocks 43 may be suspended by hangers 44 inside the holder or weights may be placed on the top disc 13 which may be stiffened by a trussed frame. The concrete blocks 43 may rest on the floor 10 and support the shell when collapsed. Excessive expansion of the holder is prevented by rods 57 and chains 58 connecting the members 29. The bars 24, 25 may be formed as single integral members and the plates 26 dispensed with. The dead space in the gas holder when collapsed may be reduced by providing annular concrete ridges on the bottom 10 or by providing a layer of water, oil, tar, &c. on the bottom as described in Specification 452,801. The gas holder may be erected on the ground, the weighting or loading of the convolutions being preferably so determined that they are free from stress when the holder is half full.
Patent GB-487932-A (GB)
Title: Improvements in and relating to vacuum cleaners and like movable floor tools
IPC: A47L5/34
Filed: 1937-12-23
Abstract: 487,932. Vacuum cleaners &c. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 23, 1937, No. 35666. Convention date, Dec. 23, 1936. [Class 8 (i)] The wheel support of a vacuum cleaner &c. comprises a stem 12 mounted to slide vertically on the body of the cleaner and having notches adapted to be engaged by a latch 18 pivoted on the body. A spring 23 may be provided tending to raise the near part of the body in relation to the stem ; a spring may also be provided to make the latch engage. Pressure of the foot on the latch may release the latch and depress the near part of the body against the spring.
Patent GB-791162-A (GB)
Title: Improvements relating to holders for wreaths and other articles
Inventor: PHILLIPS LAURENCE CHAMBERLAIN
IPC: A61G17/04
Filed: 1953-12-23
Abstract: 791,162. Covers for screws. PHILLIPS & CROSS, Ltd. Dec. 21, 1954 [Dec. 23, 1953], No. 35706/53. Class 89(1) [Also in Group XVII] A wreath-holder comprises a plate 10 for attachement by a central screw to a coffin, and a stud 19 which is secured to the plate by a resilient releasable-connection and covers the screw. The connection may consist of projections 21 fitting over a rib 18.
Patent GB-508376-A (GB)
Title: Improvements in or relating to hydraulic power transmission systems
IPC: F16D33/20
Filed: 1937-12-24
Abstract: 508,376. Hydraulic power transmitters. SINCLAIR, H., and COOPER, R. G. Dec. 24,1937, No. 35771. [Class 69 (ii)] In a power transmission system of the kind in which a driving machine is coupled to a driven machine, which is required to run at various speeds relative to that of the driving machine and which imposes a load fluctuating independently of the speed, by a hydraulic coupling of the kinetic type which is provided with vaned impeller and runner elements together forming a toroidal working circuit containing a core guide ring around which the vortex circulation is adapted to take place and with means whereby, when the system is operating, the liquid content of said working circuit can be varied so as to alter the slip in the coupling and consequently the speed ratio of the two machines, said circuit is so proportioned that the cross-sectional area of the return junction between said elements is less than the cross-sectional area of the flow junction between said elements and the cross-sectional area of the circuit passages varies smoothly between said junctions, and so that the torque-slip characteristic curves for various degrees of filling of the coupling, over a useful part of the ranges of torque and slip, are rendered flat or nearly flat with reference to the torque axis. In a coupling having radial vanes, the radial width (J) of the flow junction 23 may equal the radial width (j) of'the return junction 24. The proportions of the coupling may be as follows, the outer profile diameter (D) of the working circuit being taken as 100 :- Additional guide rings 32 may be provided. Specifications 484,092 and 493,703 are referred to.
Patent GB-835725-A (GB)
Title: Purification of phenoxymethyl penicillin
Inventor: JONES WILLIAM NORMAN
IPC: C07D499/60
Filed: 1957-11-18
Abstract: Phenoxymethyl penicillin is recovered from crude fermentation broths containing it by extracting the penicillin from the broth at a pH value below 3.5 and preferably pH 2.0 to 2.3 into a substantially water-immiscible organic solvent, treating the solution so obtained with active carbon, re-extracting the phenoxymethyl penicillin into an aqueous solution at a pH value between 6 and 8.5, and precipitating phenoxymethyl penicillin from the aqueous extract in the presence of a minor proportion of a water-miscible organic solvent by acidifying the extract. Suitable water-immiscible organic solvents are alkyl esters of organic acids such as butyl acetate and alkanols such as n-butanol.  The broth is preferably clarified prior to the organic solvent extraction.  The extract is treated with 0.2 to 1.0% w./v. carbon.  After filtering off the carbon, the organic extract is treated with an aqueous phosphate or sodium bicarbonate or potassium bicarbonate buffer solution so that the final aqueous extract contains 10,000 to 100,000 m g./ml. of penicillin V.  The water-miscible organic solvent is a ketone such as acetone or an alkanol such as ethanol or isopropanol and is used in quantities of 5 to 15%.  Reference has been directed by the Comptroller to Specification 734,232.
Patent GB-1166165-A (GB)
Title: Communications Receivers
IPC: H04J1/20
Filed: 1967-08-04
Abstract: 1,166,165. Radio signalling. COMMUNICATIONS SATELLITE CORP. 4 Aug., 1967 [5 Aug., 1966], No. 35841/67. Heading H4L. In a receiver for use in a satellite communication system of the type described in Specification 1,072,019 wherein communication is by frequency modulation, each receiver using the same frequency band but being responsive to a distinctive frequency forming an address signal which is added to the communication signal, the feedback circuit for selecting and cancelling . the distinctive frequency is replaced by a local generator for the address signal which is controlled in phase and amplitude by the received signal. As shown in Fig. 2, the signal from a satellite is received by aerial 31, frequencychanged at 32 and supplied via a frequency discriminator 33 of the type which is responsive only to signals having a low rate of change of frequency, to the output circuit 34. A conventional demodulator 39 and amplifier 30 selects the address signal frequency which is supplied to synchronous detectors 302, 303 for supplying phase and amplitude correction respectively to the local address signal supplied by oscillator 306. The output of oscillator 306 is supplied via a shaper 307 to frequency-modulate at 38 the output of local oscillator 37 so that the incoming address signal is cancelled in the mixer 32. The output of shaper 307 is supplied via a 90-degree phase shifter to the detector 302 whose output via filter 304 controls the phase of oscillator 306. The output of shaper 307 is also supplied to detector 303 where it is compared with the received address signal to supply via filter 305 a signal controlling the amplitude of the locally generated address signal. The address signal may be other than sinusoidal, e.g. a triangular waveform. In a modification, Fig. 3 (not shown) the output of oscillator 306 is fed direct to the detector 302 and the delay 308 is omitted.
Patent GB-848458-A (GB)
Title: Improvements in or relating to diazotype processes
Inventor: REYNOLDS KENNETH
IPC: G03C1/58
Filed: 1956-11-23
Abstract: 848,458. Diazotype processes. ILFORD Ltd. Nov. 22, 1957 [Nov: 23, 1956], No. 35886/56. Class 98(2) Diazotype material containing a diazotized amine of the formula:- wherein R1 is an alkyl group of 1 to 3 carbon atoms and R2 is H or a methyl group in 3<1>-, 5 <1>- or 61-position, or the corresponding amines in which the indicated CH3 group is in 4<1>-position, is developed in an alkaline medium in the presence of a 1:3:4-cyclopentatrione which may have an alkvl, arvl or aralkyl group in the 2-position. The diazonium compound may be 4-p-tolylthio- 21, 5-diethoxy-benzene diazonium zincichloride or 21, 5-dimethoxy-4 (2<1>-methyl-phenylthio) benzene diazonium zincichloride. The coupler may be 1; 3; 4-cyclopentatrione or its 2-phenyl derivative, and it may be present in the light-sensitive material or in the alkaline developer solution. The developer may contain potassium tetraborate and sodium lauryl sulphate with or without potassium carbonate. Specification 759,045 is referred to.
Patent GB-786238-A (GB)
Title: Improvements in or relating to composite catalysts for use in the hydration of olefins and to the preparation of alcohols thereby
IPC: B01J27/16
Filed: 1955-12-15
Abstract: An alcohol is prepared by contacting a gaseous mixture of an olefin and water at elevated temperature and pressure with a catalyst comprising an aqueous solution of phosphoric acid, having a concentration of at least 70 per cent, supported on a porous diatomaceous material, the diatom skeletons of which are coated with silica gel (see Group III).  The reaction may be carried out at a temperature of 250-350 DEG  C., a pressure of at least 500 lb. per sq. in., and a mol. ratio of water to olefin of between 0.3 and 1. During the reaction, minor amounts of aqueous phosphoric acid may be added to the catalyst.  The alcohol is condensed out from the gaseous product, the remaining gases being mixed with more olefin and water vapour and recycled.  Olefins derived from the thermal or catalytic cracking of petroleum hydrocarbons may be hydrated.  In examples, ethylene is converted to ethyl alcohol.  Specification 651,275 is referred to.ALSO:Catalyst for the hydration of olefins to alcohols (see Group IV (b)) comprises an aqueous solution of phosphoric acid supported on porous inert diatomaceous material, the diatom skeletons of which are coated with silica gel; the catalyst is prepared by saturating the diatomaceous material with a strong aqueous solution of phosphoric acid, heating in an atmosphere containing water vapour, digesting with acidified hot water having a pH of less than about 1.0, washing with hot water, drying, and then impregnating with aqueous phosphoric acid solution.  The water vapour present during the heating step has a partial pressure, e.g. 50-500 mm. mercury, which is less than the partial pressure of water vapour in equilibrium with the phosphoric acid solution.  Heating may be carried out at a temperature of 150-400 DEG  C. and at atmospheric, increased, or reduced pressure.  The digestion with acidified water, which may take place at above 85 DEG  C., dissolves out metal phosphates and hydrolyses silicyl phosphate to silica gel; in Example (I) the digestion is repeated.  The carrier is preferably in the form of granules or pellets.  The final impregnation may be carried out with a 55-65 per cent aqueous phosphoric acid solution, the acid then being concentrated to above 70 per cent in situ before use. Specification 651,275, [Group IV (b)], is referred to.
Patent GB-1534805-A (GB)
Title: Lamp housing and section for the same
IPC: F21V15/01
Filed: 1977-08-26
Abstract: 1534805 Lighting fittings; lighting systems W M TREFFERS 26 Aug 1977 [7 Sept 1976] 36021/77 Heading F4R A fitting for a tubular lamp comprises two longitudinally extending complementary members having respective central web portions 18, 19 functioning as reflectors and thickened end portions 20, 21 with grooves 22, 23 intended principally for spacing or bridging members, but also accommodating if required wiring or contact strips, hoods or gratings, or being used to mount the lighting assembly in a ceiling. For these additional functions more than one groove may be provided in each thickened rim. A ceiling lighting system comprising a plurality of such fixtures is disclosed (Fig. 19, not shown).
Patent GB-448830-A (GB)
Title: Improvements in or relating to electrolytes for use in electrolytic condensers
IPC: H01G9/022
Filed: 1935-12-31
Abstract: Complex derivatives of sorbitol and boric acid, for use as electrolytes in electrolytic condensers, are made by heating sorbitol with boric acid and a base, or with an alkaline borate, to a temperature above 100 DEG  C.  When boric acid is used, the base may be ammonium, sodium or potassium hydroxide, mono-, di- or tri-ethanolamine or ethylenediamine.  Examples are given. Specification 388,462, [Group XXXVI], is referred to.
Patent GB-903255-A (GB)
Title: Improvements in circuits for controlling the amplitude and phase of alternating voltages
Inventor: PASSMORE CHARLES RIVERS
Filed: 1958-11-10
Abstract: 903,255. Programmed electric-control systems. THORN ELECTRICAL INDUSTRIES Ltd. Oct. 28, 1959 [Nov. 10, 1958], No. 36092/58. Addition to 830,658. Class 38 (6). [Also in Groups XXXV and XL (b)] In a lighting control circuit as disclosed in the parent Specification, in which lamps 25, 26 are controlled by thyratrons 21, 22, whose gridcontrol circuit includes a phase-shifting network including a saturable reactor whose D.C. control winding 18 is in series with a variable resistance, this variable resistance is a photosensitive cell 30 so that energization of the lamps 25, 26 is dependent on the light falling on cell 30. This light may be daylight, or from the lamps 25, 26, or from a local lamp in parallel with lamps 25, 26, so providing a feedback arrangement. Alternatively, the light falling on the cell may be controlled by a marked paper strip, film, glass plate or punched card 35 (Fig. 5), which is moved to vary the illumination in accordance with a plan. As shown in Fig. 5, two local lamps are provided, lamp 32 being supplied by feed-back from the output circuit and lamp 33 from a source 34, the strip 35 moving perpendicular to the drawing and being provided with two sets of markings.
Patent GB-927453-A (GB)
Title: Face mask
IPC: A62B18/02
Filed: 1961-10-09
Abstract: 927,453. Masks. R. A. BRACKENRIDGE, and G. D. BRACKENRIDGE. Nov. 10, 1961 [Oct. 9, 1961], No. 36145/61. Class 97 (1). A face-mask is made of thermoplastic material and is provided with ventilation holes 2 and an integral handle 3.
Patent GB-764533-A (GB)
Title: Improvements in or relating to the shell moulding process
Inventor: JONES CYRIL ALEXANDER
IPC: B22C23/00
Filed: 1953-12-31
Abstract: An aqueous emulsion of a wax, e.g. carnauba wax, for use in the production of resin-bonded sand moulds or cores for casting metals, is made by adding an emulsifying agent, such as stearic acid or rosin acid with triethanolamine cyclohexylamine or morpholine, to water, is heated to 100 DEG C. before wax, in the proportion 1-30 per cent by weight, at the same temperature, is stirred into it.
Patent GB-522691-A (GB)
Title: Improvements in and relating to the separation of red mud from solutions in the bayer extraction process
IPC: C01F7/0653
Filed: 1938-12-13
Abstract: 522,691. Sodium aluminate. STEWART, R. F., and DORR Co., Inc, Dec. 13, 1938, No. 36282. Drawings to Specification. [Class 1 (iii)]. In the Bayer process for obtaining sodium aluminate from bauxite the separation of the ferruginous "red mud" from the solution of sodium aluminate is assisted by the addition of a starchy or farinaceous substance to the suspension. The starch is gelatinized by alkali which may conveniently consist of a portion of the clarified solution.
Patent GB-943328-A (GB)
Title: Improvements in electrical connectors
IPC: H01R12/69
Filed: 1962-09-25
Abstract: 943,328. Making electrical components; sheet metal joints. AMP Inc. Sept. 25, 1962 [Sept. 27, 1961], No. 36355/62. Headings B3A, B3J and B3L. [Also in Division H2] A connector for connecting a conductor 26 to an electrically conductive foil 20 comprises a tab 22 for connecting to conductor 26 and a blade bent over to form two parts 12, 14 for receiving foil 20 between them, the blade having a series of tangs 16 for penetrating foil 20 when parts 12, 14 are pressed against each other with foil 20 between them, tangs 16 in one part 12, 14 being opposed by dimples 32 in the other part 14, 12. Dimples 32 are surrounded by grooves 34 for deflecting the points of tangs 16 so that they bend back on themselves. In a second embodiment (Fig. 2, not shown) the connection between the connector and the conductor is made by the end of part 12 being rolled up to form a pair of staggered crimping ferrules.
Patent GB-1133380-A (GB)
Title: Improvements in or relating to two-part electrical connectors
IPC: H01R13/646
Filed: 1966-08-15
Abstract: 1,133,380. Two-part couplings. M-O VALVE CO. Ltd., R. L. BOOTH, and P. A. TOTTERDELL. 15 Aug., 1967 [15 Aug., 1966], No. 36369/66. Heading H2E. A two-part coaxial connector, in which there is a change in the external diameter of the inner conductor in the region where the inner conductors 14, 20 join, has a plug part with an outer tubular conductor 6 having an end portion 8 of uniform internal diameter and a portion of smaller diameter filled with dielectric 13 around inner conductor 14. The portion 8 may be integral with the conductor 6 which is made of gold-plated brass, or a separate portion 8 of phosphor bronze may be soldered to part 6 (Fig. 2, not shown). The plane of the junction between portion 8 and dielectric 13 may not be further than 0À022 inch from the end of the inner socket contact 20 when the plug part 1 is coupled to the socket part 2. The dielectric may be P.T.F.E.
Patent GB-1174457-A (GB)
Title: Improvements in or relating to Apparatus for Stacking Articles.
Inventor: STICKNEY GEORGE HALLET
IPC: B65H31/24
Filed: 1967-08-09
Abstract: 1,174,457. Delivering sheets. WELDWOOD OF CANADA Ltd. 9 Aug., 1967, No. 36582/67. Heading B8R. Sheets are fed from a conveyer 1, Fig. 2, into pockets formed by flaps 10 on a slower conveyer 3, being raised over a first stack 5 by a fixed flap guide 11, and carried to drop into the requisite stack 5, 6 or others by raising corresponding stop members 4. Alternatively, the stop members 23, Fig. 16, are pivoted at their upper ends. In another form, Fig. 18, guide strips 24, 26 guide the sheets into the various stacks.
Patent GB-823278-A (GB)
Title: Improvements in or relating to end closure means of folding boxes
IPC: B65D5/10
Filed: 1956-11-30
Abstract: 823,278. Closing folding boxes. CLELAND Ltd., W. W., and BUCHMAN, A. A. Nov. 28 1957 [Nov. 30, 1956], No. 36602/56. Class 18. A cardboard box 2, Fig. 3, having its end closed by flaps 6 and 7, has a line 13 cut in one flap 6 to form a tongue 14 facing the hinge line 15 of the flap, and crease lines 16 extending from the ends of the cut to form a lever 18 for the tongue 14. To close the box the side wall flaps 8 and 9 are tucked in to cause the flap 7 to fold down and the tongue 14 is deflected so as to enter a slot 19 in the flap 7, Fig. 4, the whole being then retained in position by turning down the lever 18 of the tongue 14 into the plane of the end closure. In a modified form, Fig. 2, the cut forming a tongue 14 terminates in crease lines 16 directed towards a further cut forming a lever 20 of smaller size than the tongue 14. There may be two or more locking tongues in the flap 6 with corresponding slots in the flap 7.
Patent GB-1082755-A (GB)
Title: Improvements in drill jigs
IPC: B23B49/02
Filed: 1964-09-08
Abstract: 1,082,755. Drill jig. H. P. ROBERTSON. Sept. 8, 1964 [Sept. 12, 1963], No. 36695/64. Heading B3C. [Also in Division B4] A jig for drilling gear-boxes by using the gears to position the drill bushes 26, 27, 28, oomprises a ring 1, a disc 2 rotatable in the ring bore and itself having an eccentric bore, a second ring 8 rotatable in the disc bore, and a second disc 20 rotatable in ring 8. Members 20 and 8 have toothed peripheries, and they can be indexed by a tool 15, which is located in sockets 13, 22, and has a pinion 16 which cooperates with the teeth. For setting the drill bushes, gears 30-32 are placed on the bushes, and members 2, 8, 20 are indexed until the gears intermesh, and the members are then locked by lugs 5, 11, 24.
Patent GB-1151026-A (GB)
Title: Improvements in or relating to Apparatus for Electrostatic Precipitation of Particles from Gaseous Streams.
IPC: B03C3/49
Filed: 1967-08-10
Abstract: 1,151,026. Electrostatic precipitators. KOPPERS CO. Inc. 10 Aug., 1967 [6 Sept., 1966], No. 36839/67. Heading B2J. An electrostatic precipitator comprises a two-part collector electrode 13, Fig. 1, surrounding a discharge electrode 11 and means for selectively rendering operative one or other part of the collector electrode. The gas/ particle mixture is divided into two streams C,B by ducts 15, 17, the dirty stream C passing e.g. to a cyclone. In operation dust forms first on a cylinder part 18 of the electrode 13, and this is then moved forward, Fig. 2, so that the collected dust is scoured off by the gas stream. Meanwhile dust forms on the other cylinder part 19, which is similarly scoured. Movement is effected as by motors 21, 23 linked to the cylinder by links 25, 27. Scouring may be assisted by mechanical rapping, particularly where the gas velocity is low, Figs. 4 and 5 (not shown).
Patent GB-449402-A (GB)
Title: Improvements in roadways and similar surfaces
IPC: E01C11/16
Filed: 1934-12-24
Abstract: 449,402. Road surfaces. HORRIDGE, W., Heather Lea, Bury. Dec. 24, 1934, No. 36902. [Class 20 (iv)] Relates to road and like surfaces comprising a number of units each consisting of a number of interconnected open-ended cylindrical elements having their upper surfaces lying flush with or projecting slightly above the tarmacadam, concrete, cement, or like surfacing material which fills the spaces between and also the interior of the elements. According to the invention, the cylindrical elements A have their bases resting directly upon the road foundation and the connecting strips a<1> are a short distance above the bottom edges of the elements. British Specification 419,052 and U.S.A. Specification 1,914,107 are referred to.