baber/WOPTO huggingface dataset:
Patent GB-1016961-A (GB)
Title: New high yielding methods for producing oxytetracycline
Inventor: FABRIZIO GERARDO
IPC: C12P29/00
Filed: 1963-02-08
Abstract: Oxytetracycline is produced by cultivating an oxytetracycline-producing strain of Streptomyces capuensis n.sp., especially strain C.B.S. 113.63, under submerged aerobic conditions in an aqueous nutrient medium containing assimilable sources of carbohydrate, nitrogen and inorganic salts including ammonium sulphate. Preferably, the inoculant is an 8 to 10-hour subculture of the micro-organism.  A typical nutrient medium contains starch, corn steep, ammoium sulphate, calcium carbonate, ammonium chloride, cobalt chloride, lard oil and water. Maximum yields are obtained by initially using two-thirds of the total quantity of ammonium sulphate to be used in the culture medium and adding the remaining one-third after 40 to 80 hours of fermentation.  The fermented broth is acidified to pH 2.0 and filtered.  An alkaline solution such as aqueous sodium hydroxide or ammonia is added to pH 6 to 9 and the precipitated oxytetracycline is separated and may be further purified.
Patent GB-222382-A (GB)
Title: Improvements in air washers
IPC: B01D47/02
Filed: 1924-02-29
Abstract: 222,382. Marks, E. C. R., (Drying Systems, hic.). Feb. 29, 1924. Air, washing. - In air washers having a number of narrow, alternating air inlet and outlet passages extending to the normal liquid level, vertical partitions 20 extending into the liquid are provided at the lower ends of the air inlets 17 to furrow and extend the contact surface between the air and the liquid, The partitions 20 have their upper edges fixed at the liquid level 12. In the outlet passages 18 are arranged another series of partitions or eliminator plates 22 having inverted gutters 23 at their upper edges.
Patent GB-621373-A (GB)
Title: Improvements relating to clamping devices
IPC: H01R13/59
Filed: 1947-02-24
Abstract: 621,373. Screw damps. FENWICK, A. C. Feb. 24, 1947, No.- 5286. [Class 44] [Also in Group XXXVI] A clamping device comprises an externally threaded sleeve b adapted to surround the member a to be clamped and having two or more gaps c therein, into each of which is inserted a gripping member d, and an internally threaded collar f adapted to screw over the sleeve and having its bore flared at g to form a sharp edge, whereby when it is screwed home its edge shears off the projecting parts of the gripping members and the flared part of the bore forces the gripping members inward to produce a clamping effect. The gripping members d are suitably shaped to fit around the member a and are preferably made of wood with the grain running parallel to the axis of the device.
Patent GB-754943-A (GB)
Title: Improvements relating to the mounting of large machines on a bed or seating surface
Inventor: WHITEHOUSE REGINALD GEORGE
IPC: F16M5/00
Filed: 1954-02-23
Abstract: 754,943. Machinery beds. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 23, 1955 [Feb 23, 1954]. No. 5323/54. Class 80 (4) A method of mounting a large machine such as a turbine and/or alternator on its bed consists of providing a number of resilient pads 3 together with a number of jacks between the machine baseplates 1, 2 and the bed. The pads 3, of for example, india rubber, are secured to liners 7 which are located in frames 10 secured to the bed and are of a thickness that they take between 60 per cent and 80 per cent of the load, leaving only between 40 per cent and 20 per cent to be taken by the jacks which may be of the wedge and screw type. Longitudinal and lateral adjustments of the machines may be effected by wedges 11 against chocks or abutments 12 secured to the bed and holding down bolts 5 are provided for holding the machines in position.
Patent GB-115408-A (GB)
Title: Improvements in the Manufacture or Production of Tops for Cycle or similar Saddles.
Inventor: JELLEY JAMES
IPC: B62J1/00
Filed: 1917-05-21
Abstract: 115,408. Jelley, J., and Jelley, H. May 21, 1917. Saddles.-In the production of cycle or similar saddle tops from composite blanks of rubber and fabric, the blank is subjected to part vulcanization under pressure in the flat state, and the vulcanization is then completed during the shaping of the partly vulcanized blank in blocking or moulding dies. A cut-out flat blank of the unvulcanized material is subjected to the pressure and action of flat moulding tools or appliances which give smooth surfaces to the upper and under rubber layers, force part of the rubber into the fabric, and shape or trim the edges; these appliances may also impress any desired lettering, ornamentation, or design on the top and mark the positions in which holes are to be pierced for the reception of the locating-pins in the shaping-mould. The part vulcanization while the blank is under the pressure of the float mould ensures that, during the subsequent operation, the top will retain its smooth surface and also the sharpness or clearness of any ornamentation &c. that may have been impressed upon it. The top may have upper and under layers of similar hardness; or they may be of different hardness, as referred to in Specification 115,407.
Patent GB-393376-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/42
Filed: 1932-02-23
Abstract: 393,376. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and PATTERSON, W. G., 68, Eltham Road, Lee, both in London. Feb. 23, 1932, No. 5385. [Class 40 (iv).] In an arrangement in which common control apparatus is operatively associated with any one of a group of selectors by a hunting switch, the common line relay is normally connected in multiple to the incoming impulse wires of all the selectors, thus allowing impulses to be received while the associating switch is still hunting. As shown, an idle selector has battery connected to the test wire over wiper DS2 in its normal position, and when seized, relay JB connected up by line relay A renders all the selectors of the group non-selectable by disconnecting the test wires. Relay TB energizes when the associating switch CS engages the seized selector which is marked over the incoming test wire and grounds the latter over wiper CS2. Switching relay H operates partially at this stage and opens the homing circuit of the selector. The digit switch DS which registers the impulses marks over wiper DS5 the group of trunks to be searched over by the selector, which is of the motor-driven type described in Specification 388,173. Relays T, TA energize when an idle trunk is found, and switching relay H operates fully, disconnecting line relay A to release the common .apparatus. A discriminating signal may be sent forward if required over wipers CS4, DS4. If no idle trunk is found, the selector stops in its last position, in which relay LC energizes and a busy signal or NU tone is sent back according as the group is " live " or " dead," relay SL being operated over wiper DS6 in the latter case.
Patent GB-1156445-A (GB)
Title: Improvements in or relating to Paints for Foundry Moulds and Cores
Inventor: MIDDLETON JAMES MAURICE
IPC: B22C3/00
Filed: 1968-02-02
Abstract: 1,156,445. Mould-linings and core-coatings. STEEL CASTINGS RESEARCH & TRADE ASSOCIATION. 2 Feb., 1968, No. 5404/68. Heading B3F. [Also in Division C3] A paint for foundry moulds and cores, e.g. with sand surfaces, comprises an aqueous suspension of a granular refractory with an organic suspending agent and a complex sodium phosphate. The sodium phosphate forms a glass-like bond with the refractory on stoving and may be, e.g. sodium tripolyphosphate (Na 5 P 3 O 10 ) or sodium metaphosphate (NaPO 3 ) m  where m # 6. The refractory may be zircon, silica, magnesia, magnesite, alumina, olivine or chromite. The suspending agent may be high viscosity sodium carboxymethylcellulose or hydroxyethylcellulose. Bentonite may also be present. Exemplified compositions comprise, in wt. per cent: zircon flour 70; sodium carboxymethyl cellulose (2À5% aqueous solution), 10-12; sodium hexametaphosphate, 1; bentonite 0-0À5; water 17-18À5. The stoving temperature may be 250‹ C., and the coating resists shock from molten metal up to 1350- 1650‹ C. A two-coat application is 0À020- 0À025 inch thick. The organic suspending agent decomposes and burns out during stoving and metal pouring.
Patent GB-248389-A (GB)
Title: Method of and means for eliminating capacitive coupling in audion circuits and the like
IPC: H03F1/16
Filed: 1926-02-26
Abstract: 248,389. Hezeltine Corporation, (Assi gnees of Wheeler, H. A.). Feb. 27, 1925, [Convention date]. Thermionic amplifiers and detectors. -The undesired reactions due to capacative coupling between an input circuit and an output circuit are neutralized by arranging a plurality of capacities, which may be inherent capacities or added in the form of condensers, to form a balanced capacity network in which the capacities have such values that the inherent capacity is greater than one, and less than another of the capacities forming the network. Fig. 4 shows an arrangement in which coupling is neutralized through circiuts A, B, D due to inherent capacities C', Ca. Fig. 5 shows the application to a receiver employing two stages of radio frequency amplification 16, 17 and a detector 18, capacity bridges C', c<11> C1, C2 numerical values for which are given in the Specification neutralizing the capacity coupling between the input and output of the valves 16, 17. The plate high tension supply for valves 16, 17 is through chokes 4 and by-pass condensers 23, 24 are provided for the batteries 11, 12. The input comprises an auto-transformer T, the ratio of which may be 1 : 2.8, tuned by condenser 30. The output includes tuned circuits 19, 20 and are coupled to the following valve by condensers 21, 22 respectively. Specification 240,114 is referred to. Reference has been directed by the Comptroller to Specification 215,105.
Patent GB-458635-A (GB)
Title: Improvements in fluorescent screens
IPC: H01J29/18
Filed: 1936-02-24
Abstract: 458,635. Fluorescent screens. NAAIM. LOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 24, 1936, No. 5562. Convention date, May 29, 1935. [Class 98 (i)] A screen of the kind provided with a layer of inorganic oxide beneath the active layer is prepared by applying to a support as of glass or metal by vaporization and precipitation a substratum of one or more inorganic oxides, as of beryllium, aluminium, silicon, or magnesium ; and thereafter applying, as by deposition from a suspension in alcohol, hexane, or benzene, a fluorescent layer as of calcium tungstate, cadmium tungstate, zinc silicate, zinc sulphide, or a mixture of zinc sulphide and calcium sulphide. A thin metal layer transparent to light may be provided under the oxide layer.
Patent GB-1386131-A (GB)
Title: Plurality of secured sheets provided with a folded insert
IPC: B42F5/00
Filed: 1972-02-07
Abstract: 1386131 Sheet insert LITTON BUSINESS SYSTEMS Inc 7 Feb 1972 5653/72 Heading B6A A magazine 21 of the like comprising a plurality of sheets 3 secured together, e.g. by perfect or saddle stitch binding, includes a sheet insert comprised of at least first 9, second 11 and third 13 panels, the first panel 9 being folded over the second panel 11, these two panels being secured adjacent their common fold to the remainder of the sheets, the second panel being perforated at 7 for removal, and the third panel 13 being folded between the first and second panels. The first and third panels are releasably secured together by spot gluing 19. Additional panels may be folded inside the second and third panels.
Patent GB-938115-A (GB)
Title: A process for the purification of enzymes, toxins and toxoids
IPC: A61K39/05
Filed: 1960-02-17
Abstract: Enzymes of bacterial origin are isolated from crude solutions containing same by desalting the solution with, for example, an ion exchange material or by dialysis until an electrical conductivity of 600-10,000 and especially 800 to 1,000 ohms is obtained, adjusting the solution to a pH value of from 7 to 11, adsorbing the active substances by means of cellulose containing a basic group, (preferably diethylaminoethyl) and eluting the active substance at a pH value of 2 to 7 by means of a 0.2 to 0.5 molar aqueous salt solution.  The buffer eluates are freed from inorganic ions by dialysis or treatment with ion exchange materials, and then lyophilised.  For the desalting step a mixture of cation exchange based on polystyrene (e.g. Amberlite 1R-120) in H- form and an aromatic anion exchange resin containing quaternary ammonium groups (e.g. Amberlite IRA-410) in OH form may be used.  The buffer salt solution may be a phosphate, acetate, sodium chloride or phosphate sodium chloride buffer solution.  Specified enzymes are streptokinase, streptodornase, bacterial - peptidases, -proteinases, -phosphatases, catalases, -hemolysins and coagulase.ALSO:Toxins and toxoids of bacterial origin are isolated from crude solutions containing same, especially culture solutions, by desalting the solution with, for example, an ion-exchange material or by dialysis until an electrical conductivity of 600 to 10,000 and especially 800 to 1000 ohms is obtained, adjusting the solution to a pH value of from 7 to 11, adsorbing the active substance by means of cellulose containing a basic group, preferably diethyl aminoethyl and eluting the active substances at a pH of 2 to 7 by means of a 0.2 to 0.5 molar aqueous salt solution.  The buffer eluates are freed from inorganic ions by dialysis or treatment with ion-exchange materials and then lyophilized.  For the desalting a mixture of a cation-exchange resin based on polystyrene (e.g. Amberlite IR-120) in H-form and an aromatic anion-exchange resin containing quaternary ammonium groups (e.g. Amberlite IRA-410) in OH form may be used.  The buffer salt solution may be a phosphate, acetate, sodium chloride or phosphate-sodium chloride buffer solution.  Specified toxins and toxoids are tetanus toxin and toxoid, Botulinum toxoid and toxin, and leucocidins.
Patent GB-1588795-A (GB)
Title: Electrically heated cooking apparatus
IPC: H05B1/02
Filed: 1978-02-13
Abstract: A heater (5, 6) and a support (14) for the roasting and grilling items which can be locked in its working position are arranged in the roasting chamber of the roasting and grilling device (1). An electric timer device (8) which can be influenced by the roasting and grilling temperature is present for the purpose of controlling the roasting and grilling operation. Said timer device is connected to the heater (5, 6) and to the unlocking device (10). The electric timer device (10) has an electric temperature sensor (17) with a proportionality factor which is constant in the roasting and grilling temperature range between the working temperature and the output variable. Such a device (1) operates reliably and always delivers items roasted or cooked to a constant degree independently of the nature of the roasting or grilling item and of the state of preheating. <IMAGE>
Patent GB-1454711-A (GB)
Title: Process for producing constructional panels and to the panels obtained when carrying out the process
IPC: B32B5/18
Filed: 1975-02-11
Abstract: 1454711 Laminated construction panels SOC D'ETUDES DES TECHNIQUES D'INDUSTRIALISATION DU LOGEMENT SETIL 11 Feb 1975 [21 Feb 1974] 5717/75 Heading B5N A construction panel is made by spacing apart a foamed glass panel and a covering panel and injecting foamable polyurethane resin into the space. As shown, a series of foamed glass panels 2 1 , 2 2  and covering panels 1, 4, e.g. wood, metal, plastics are disposed in a mould and the resin 5 is injected through a series of perforated pipes 3 to fill the available space, including 2 3  between panels 2 1 , 2 2 . A section member 6 may be provided in the mould and allows for subsequent assembly of finished panels. The resin 5 may contain pre-stressed reinforcement, e.g. metal rods, glass fibres. The pipes 3 may remain as reinforcement. Foamed glass balls may be provided in the space before injection therein of the resin.
Patent GB-100677-A (GB)
Title: Improvements in Garment Pressing Machines.
Inventor: SPENCER JAMES BERRIAN
IPC: D06F71/02
Filed: 1916-04-19
Abstract: 100,677. Spencer, J. B. June 15, 1915, [Convention date]. Ironing-machines with pressing action only.- Comprises special means for operating the movable pressing-member of a garment pressing or ironing machine. The movable steam-heated pressing-member 5, which co-operates with a stationary back 4, is mounted on a pivoted counterweighted lever 3. The end of the lever 3 adjacent to the counterweight 7 is connected adjustably by screw mechanism 14 to the upper end of a system of lazy-tongs links, which are connected directly to one arm of a pedal at 25 and adjustably through links 18, 19, 21 to the other arm of the pedal. Depression of the pedal against the action of the spring 26 moves the whole system of links into the self-locking position shown in dotted lines. To raise the pressing-member 5 again, an auxiliary pedal 31 is depressed so that its weighted end 29 strikes against, and raises, the main pedal.
Patent GB-740712-A (GB)
Title: Improvements relating to bogies for track vehicles
IPC: B61F5/22
Filed: 1953-03-02
Abstract: 740,712. Underframing of track vehicles. MASCHINENFABRIK ESSLINGEN. March 2, 1953 [March 1, 1952], No. 5816/53. Class 103 (6). The main frame of a vehicle mounted on bogies is resiliently supported on each bogie, the supporting points being connected with each other in pairs longitudinally of the bogie so that the two supporting points of a pair are constrained to move together vertically through the same distance and in the same direction independently of any differences between the loads acting on the two supporting points. In the arrangement shown in Fig. 1, each side of the bogie is provided with two sliding blocks 1 coupled together by means of levers 2 and a link 2a and supported by springs 3, so that however the load is distributed the springs are affected to the same extent. The inner end of the levers instead of being connected by the link 2a could be formed as inter-engaging toothed segments. In the arrangement shown in Figs. 4 and 5, the sliding blocks 1 with associated springs 4 are connected by lever arms 7 to a rigid shaft 6 whereby the load on the sliding blocks is transmitted equally to both springs.
Patent GB-1372627-A (GB)
Title: Electrical room heating appliance with temperature control apparatus
IPC: G05D23/30
Filed: 1973-02-08
Abstract: 1372627 Automatic control of temperature. DIMPLEX Ltd 8 Feb 1973 [8 Feb 1972] 5832/72 Heading G3R  A temperature control apparatus for controlling temperature of a domestic room heating appliance 5 (Fig. 1) comprises a bi-metal strip thermal switch 1, 2, 3 provided with an auxiliary heater 7-the current through which is controlled by an NTC thermistor 6. The switch is thus  responsive to heat generated by its own resistance 4, heat generated by the auxiliary heater and ambient temperature of surrounding air. In an alternative embodiment Fig. 3 (not shown) a PTC thermistor is employed instead of the NTC thermistor 6 and shunts the auxiliary heater. In a further embodiment Fig. 2 (not shown) the thermistor and auxiliary heater are connected in series across the heating appliance 5 so that when contacts 2, 3 are opened the bi-metal strip will cool more quickly than in the Fig. 1 embodiment. The thermistor may be mounted so as to respond to air surrounding the appliance. In the Fig. 1 embodiment, instead of employing the material of the bi-metal strip to generate heat, a separate accelerating resistance heater may be used (not illustrated).
Patent GB-1375411-A (GB)
IPC: D03C13/00
Filed: 1971-03-02
Abstract: 1375411 Shedding motions BONAS MACHINE CO Ltd and J D GRIFFITH 29 Feb 1972 [2 March 1971] 5836/71 Heading D1E In a cam-operated shedding motion, the camming surface is formed by a chain of laminar links 10 which are pivoted together by pins 12 in a plurality of lines each of which has its corresponding follower 13 and a corresponding driving sprocket 17. Adjacent sprockets 17 on the driving shaft 18 are offset rotationally about the shaft 18 with respect to each other by half the pitch of the sprocket teeth, so that the teeth assist in guiding the links 10 in the adjacent line onto their corresponding teeth.
Patent GB-168335-A (GB)
Title: Improvements relating to the distillation or cracking of hydrocarbon oils
IPC: C10G9/30
Filed: 1920-02-26
Abstract: 168,335. Dalley, C., (Greenway, T. J.). Feb. 26, 1920. Hydrocarbons, distilling and cracking.- In distilling and cracking hydrocarbon oils, the oil is fed by a pipe F in an open charging-shoot B to the top of a column A of heated infusible and incombustible material such as broken shale, fire bricks, &c. up which ascends a stream of combustion gases obtained by combustion of solid, liquid, or gaseous fuel at the base of the column. The fuel may be the unvaporized portion of the oil which is fed to the top of the column. The combustion gases and vapours from the oil pass by a port C to a heated flue D in which cracking of the vapours takes place, and thence to a condenser. The column may be heated externally by vertical combustion chambers at the sides of the column. Steam or water may be injected into the lower part of the column. The oil supply pipe F may pass downwards to supply the oil to any part of the column. Specification 163,347 is referred to.
Patent GB-112366-A (GB)
Title: Improvements in and connected with Electrophones.
IPC: H04R25/04
Filed: 1917-04-28
Abstract: 112,366. Hyman, S. M., and Stols Electrophone Co. April 28, 1917. Telephones for deaf persons; telephones; microphones.-The receiver element of an electrophone, or telephonic apparatus for assisting the hearing of deaf persons, is provided with a rheostat comprising coils wound on a semicircular piece of cardboard attached to the receiver magnet, the coils being connected at intervals to a row of contact studs over which a rheostat arm, pivoted on the back of the receiver, may be moved. Fig. 1 shows the microphone and battery, and Fig. 5 the receiver with the diaphragm and cover removed. The curved magnet P with pole-pieces NO is secured in the base of the receiver J, and over it is placed a notched cardboard strip R on which the rheostat coils Q, in series with the magnet coils, are wound. Connexions are made from the rheostat coils Q to a series of studs M which project through the base of the receiver and make contact with an arm pivoted on a pin L<1>. Eight contacts may be used, and stops are provided for limiting the arm's movement. The receiver cap is screwed internally and carries the ferrotype diaphragm between brass and paper rings. The transmitter F is attached to the battery by clips D, E secured to the back of the case. One of the leads from the receiver is connected to the fixed electrode G of the microphone, and the other lead is connected to a terminal H' from which an internal metal strip D<2> leads to the battery clip D'. The circuit is completed through the diaphragm and the casing. The front of the transmitter is closed by a perforated cap which is locked in position on the case F by a cam-controlled spring catch, the cam being actuated by turning a pin W to which access is obtained by removing a bridge X.
Patent GB-252790-A (GB)
Title: Improvements in or relating to articles of furniture such as dinner waggons, bed tables and the like
IPC: A47B31/04
Filed: 1925-03-05
Abstract: 252,790. Rossborougrh, G. A. March 5, 1925. Castors 2 on legs of a dinner wagon convertible into an invalid table by the hinging of a support 5 are carried by rods which are held vertically adjusted in the legs by screws 13.